| @@ -1,12607 +1,568 @@ | ||
| 1 | -<?php | |
| 2 | -if (!defined('ABSPATH')) { | |
| 3 | - exit; | |
| 4 | -} | |
| 5 | - | |
| 6 | -class MxChat_Integrator { | |
| 7 | - private $options; | |
| 8 | - private $prompts_options; | |
| 9 | - private $chat_count; | |
| 10 | - private $fallbackResponse; | |
| 11 | - private $productCardHtml; | |
| 12 | - // plan-mxchat-20260617-48a57a — function-calling UI payload capture. When a | |
| 13 | - // model-invoked tool yields a UI element (generated image, woo product card, | |
| 14 | - // image-search gallery), the FC loop stashes its html here so the FC outcome | |
| 15 | - // handler can SURFACE it to the frontend the same way the intent path does, | |
| 16 | - // instead of stripping it to text for the model (the bug: UI-bearing actions | |
| 17 | - // rendered nothing under function calling). | |
| 18 | - private $fc_ui_html = ''; | |
| 19 | - private $fc_ui_images = array(); | |
| 20 | - private $fc_ui_captured = false; | |
| 21 | - private $word_handler; | |
| 22 | - private $last_similarity_analysis = null; | |
| 23 | - private $current_valid_urls = []; | |
| 24 | - private $last_vectorstore_error = null; | |
| 25 | - private $is_streaming = false; // ADDED: Track if current request is streaming | |
| 26 | - private $streaming_headers_sent = false; // Track if streaming headers have been sent | |
| 27 | - private $pending_originating_page = null; // Originating page captured at session start, consumed on row insert | |
| 28 | - private $current_action_instruction = null; // Success-message instruction injected into the next system context | |
| 29 | - private $last_action_analysis = null; // Last action-match analysis for testing_data payloads | |
| 30 | - | |
| 31 | -/** | |
| 32 | - * Setup streaming headers - call this right before actually streaming | |
| 33 | - * This delays header setup to allow actions/forms to return JSON responses | |
| 34 | - */ | |
| 35 | -/** | |
| 36 | - * Auto-retry wrapper around wp_remote_post for chat-send provider calls. | |
| 37 | - * | |
| 38 | - * Retries up to twice (750ms then 2000ms backoff) when the upstream provider | |
| 39 | - * returns a TRANSIENT error: WP timeout, 429, 502, 503, 504, or a provider- | |
| 40 | - * specific "overloaded" / "rate limit" body string. Returns immediately on | |
| 41 | - * permanent errors (401/403/404/422) so misconfiguration surfaces fast. | |
| 42 | - * | |
| 43 | - * Drop-in replacement for wp_remote_post — returns the same shape | |
| 44 | - * (WP_Error or response array) so the caller's existing error-handling | |
| 45 | - * code path is unchanged. | |
| 46 | - * | |
| 47 | - * STREAMING PATH NOTE: this helper is ONLY for non-streaming chat-send | |
| 48 | - * paths (the *_response_openai / *_response_claude / etc functions). | |
| 49 | - * For the *_stream variants, the cURL initial-connect happens inside a | |
| 50 | - * read-chunks loop — retrying there safely (without re-emitting partial | |
| 51 | - * stream chunks to the client) is a separate problem. Streaming paths | |
| 52 | - * are NOT wrapped in this build; tracked as a follow-on. | |
| 53 | - * | |
| 54 | - * Honors the `mxchat_options['auto_retry_on_transient_error']` toggle | |
| 55 | - * (default true). When false, behavior is identical to plain wp_remote_post. | |
| 56 | - */ | |
| 57 | -private function mxchat_provider_call_with_retry($url, $args, $provider_hint = '') { | |
| 58 | - $opts = is_array($this->options ?? null) ? $this->options : array(); | |
| 59 | - $enabled = !isset($opts['auto_retry_on_transient_error']) || | |
| 60 | - (string) $opts['auto_retry_on_transient_error'] !== '0'; | |
| 61 | - | |
| 62 | - if (!$enabled) { | |
| 63 | - return wp_remote_post($url, $args); | |
| 64 | - } | |
| 65 | - | |
| 66 | - $backoffs = array(0, 750, 2000); // ms — first attempt 0, then retry waits | |
| 67 | - $last_response = null; | |
| 68 | - | |
| 69 | - foreach ($backoffs as $i => $delay_ms) { | |
| 70 | - if ($delay_ms > 0) { | |
| 71 | - usleep($delay_ms * 1000); | |
| 72 | - } | |
| 73 | - $response = wp_remote_post($url, $args); | |
| 74 | - $last_response = $response; | |
| 75 | - | |
| 76 | - if (!$this->mxchat_is_transient_provider_error($response, $provider_hint)) { | |
| 77 | - return $response; | |
| 78 | - } | |
| 79 | - | |
| 80 | - if (defined('WP_DEBUG') && WP_DEBUG) { | |
| 81 | - $code_for_log = is_wp_error($response) ? 'wp_error:' . $response->get_error_code() | |
| 82 | - : (int) wp_remote_retrieve_response_code($response); | |
| 83 | - error_log(sprintf( | |
| 84 | - '[MxChat] Transient provider error (provider=%s, attempt=%d/3, status=%s). %s', | |
| 85 | - $provider_hint ?: 'unknown', | |
| 86 | - $i + 1, | |
| 87 | - $code_for_log, | |
| 88 | - ($i + 1) < count($backoffs) ? 'Retrying.' : 'Giving up.' | |
| 89 | - )); | |
| 90 | - } | |
| 91 | - } | |
| 92 | - | |
| 93 | - return $last_response; | |
| 94 | -} | |
| 95 | - | |
| 96 | -/** | |
| 97 | - * Returns true if a wp_remote_post response represents a TRANSIENT | |
| 98 | - * provider error worth retrying. Conservative — only retries on signals | |
| 99 | - * that are very likely to clear within a few seconds. | |
| 100 | - * | |
| 101 | - * Transient signals: | |
| 102 | - * - WP_Error with timeout / connection / dns / ssl | |
| 103 | - * - HTTP 429, 502, 503, 504 | |
| 104 | - * - Provider-specific overload bodies (gemini "overloaded", openai | |
| 105 | - * "server_error", anthropic "overloaded_error", xai/grok "Rate limit") | |
| 106 | - * | |
| 107 | - * NOT transient (return false — fail-fast): | |
| 108 | - * - 200/2xx (success) | |
| 109 | - * - 401, 403, 404, 422 (auth / config errors — retrying wastes the | |
| 110 | - * budget; the user needs to fix something) | |
| 111 | - * - Any other 4xx (assume permanent unless explicitly listed above) | |
| 112 | - * - 5xx other than the four listed above (e.g. 500 generic server error | |
| 113 | - * is often a malformed request on our side, not a transient outage) | |
| 114 | - */ | |
| 115 | -private function mxchat_is_transient_provider_error($response, $provider_hint = '') { | |
| 116 | - if (is_wp_error($response)) { | |
| 117 | - $code = $response->get_error_code(); | |
| 118 | - return in_array($code, array('http_request_failed', 'connection_failed', 'connection_timeout'), true) | |
| 119 | - || stripos((string) $response->get_error_message(), 'timed out') !== false | |
| 120 | - || stripos((string) $response->get_error_message(), 'timeout') !== false; | |
| 121 | - } | |
| 122 | - | |
| 123 | - $status = (int) wp_remote_retrieve_response_code($response); | |
| 124 | - if (in_array($status, array(429, 502, 503, 504), true)) { | |
| 125 | - return true; | |
| 126 | - } | |
| 127 | - if ($status >= 200 && $status < 300) { | |
| 128 | - return false; | |
| 129 | - } | |
| 130 | - // Permanent 4xx that should fail fast — even with no body. | |
| 131 | - if (in_array($status, array(401, 403, 404, 405, 422), true)) { | |
| 132 | - return false; | |
| 133 | - } | |
| 134 | - | |
| 135 | - // Provider-specific body inspection for the cases where the upstream | |
| 136 | - // returns 200 with an error envelope (gemini does this for overload). | |
| 137 | - $body = (string) wp_remote_retrieve_body($response); | |
| 138 | - if ($body === '') { | |
| 139 | - return false; | |
| 140 | - } | |
| 141 | - $lower = strtolower($body); | |
| 142 | - $hint = strtolower((string) $provider_hint); | |
| 143 | - | |
| 144 | - if ($hint === 'gemini' && (strpos($lower, 'overloaded') !== false | |
| 145 | - || strpos($lower, 'high demand') !== false | |
| 146 | - || strpos($lower, 'model is overloaded') !== false)) { | |
| 147 | - return true; | |
| 148 | - } | |
| 149 | - if ($hint === 'openai' && (strpos($lower, 'rate limit reached') !== false | |
| 150 | - || strpos($lower, '"type":"server_error"') !== false | |
| 151 | - || strpos($lower, '"code":"server_error"') !== false)) { | |
| 152 | - return true; | |
| 153 | - } | |
| 154 | - if ($hint === 'anthropic' && (strpos($lower, '"type":"overloaded_error"') !== false | |
| 155 | - || strpos($lower, 'overloaded_error') !== false)) { | |
| 156 | - return true; | |
| 157 | - } | |
| 158 | - if (($hint === 'xai' || $hint === 'grok') && strpos($lower, 'rate limit') !== false) { | |
| 159 | - return true; | |
| 160 | - } | |
| 161 | - | |
| 162 | - return false; | |
| 163 | -} | |
| 164 | - | |
| 165 | -/** | |
| 166 | - * Streaming-path classifier: same rules as mxchat_is_transient_provider_error | |
| 167 | - * but takes a raw (http_code, body, provider_hint, curl_errno) tuple as | |
| 168 | - * captured during a cURL streaming exec. cURL's WRITEFUNCTION/HEADERFUNCTION | |
| 169 | - * collect status separately from a plain wp_remote_post array shape, so the | |
| 170 | - * non-streaming helper above can't be called directly. This delegate keeps | |
| 171 | - * the classification rules identical across both paths. | |
| 172 | - */ | |
| 173 | -private function mxchat_is_transient_provider_error_raw($http_code, $body, $provider_hint = '', $curl_errno = 0) { | |
| 174 | - if ($curl_errno) { | |
| 175 | - // cURL transport-level error (timeout, connection failure, DNS, etc.) | |
| 176 | - // Match the same WP_Error timeout/connection signals the array variant treats as transient. | |
| 177 | - return in_array($curl_errno, array( | |
| 178 | - CURLE_OPERATION_TIMEDOUT, | |
| 179 | - CURLE_COULDNT_CONNECT, | |
| 180 | - CURLE_COULDNT_RESOLVE_HOST, | |
| 181 | - CURLE_SSL_CONNECT_ERROR, | |
| 182 | - CURLE_GOT_NOTHING, | |
| 183 | - CURLE_SEND_ERROR, | |
| 184 | - CURLE_RECV_ERROR, | |
| 185 | - ), true); | |
| 186 | - } | |
| 187 | - | |
| 188 | - $status = (int) $http_code; | |
| 189 | - if (in_array($status, array(429, 502, 503, 504), true)) { | |
| 190 | - return true; | |
| 191 | - } | |
| 192 | - if ($status >= 200 && $status < 300) { | |
| 193 | - return false; | |
| 194 | - } | |
| 195 | - if (in_array($status, array(401, 403, 404, 405, 422), true)) { | |
| 196 | - return false; | |
| 197 | - } | |
| 198 | - | |
| 199 | - $body = (string) $body; | |
| 200 | - if ($body === '') { | |
| 201 | - return false; | |
| 202 | - } | |
| 203 | - $lower = strtolower($body); | |
| 204 | - $hint = strtolower((string) $provider_hint); | |
| 205 | - | |
| 206 | - if ($hint === 'gemini' && (strpos($lower, 'overloaded') !== false | |
| 207 | - || strpos($lower, 'high demand') !== false | |
| 208 | - || strpos($lower, 'model is overloaded') !== false)) { | |
| 209 | - return true; | |
| 210 | - } | |
| 211 | - if ($hint === 'openai' && (strpos($lower, 'rate limit reached') !== false | |
| 212 | - || strpos($lower, '"type":"server_error"') !== false | |
| 213 | - || strpos($lower, '"code":"server_error"') !== false)) { | |
| 214 | - return true; | |
| 215 | - } | |
| 216 | - if ($hint === 'anthropic' && (strpos($lower, '"type":"overloaded_error"') !== false | |
| 217 | - || strpos($lower, 'overloaded_error') !== false)) { | |
| 218 | - return true; | |
| 219 | - } | |
| 220 | - if (($hint === 'xai' || $hint === 'grok') && strpos($lower, 'rate limit') !== false) { | |
| 221 | - return true; | |
| 222 | - } | |
| 223 | - | |
| 224 | - return false; | |
| 225 | -} | |
| 226 | - | |
| 227 | -/** | |
| 228 | - * Whether transient-error auto-retry is enabled in admin settings. | |
| 229 | - * Default true unless explicitly set to '0'. Used by both wp_remote_post | |
| 230 | - * (mxchat_provider_call_with_retry) and cURL streaming paths. | |
| 231 | - */ | |
| 232 | -private function mxchat_retry_enabled() { | |
| 233 | - $opts = is_array($this->options ?? null) ? $this->options : array(); | |
| 234 | - return !isset($opts['auto_retry_on_transient_error']) || | |
| 235 | - (string) $opts['auto_retry_on_transient_error'] !== '0'; | |
| 236 | -} | |
| 237 | - | |
| 238 | -private function setup_streaming_headers() { | |
| 239 | - if ($this->streaming_headers_sent || headers_sent()) { | |
| 240 | - return false; | |
| 241 | - } | |
| 242 | - | |
| 243 | - // Disable output buffering | |
| 244 | - while (ob_get_level()) { | |
| 245 | - ob_end_flush(); | |
| 246 | - } | |
| 247 | - | |
| 248 | - // Set headers for SSE | |
| 249 | - header('Content-Type: text/event-stream'); | |
| 250 | - header('Cache-Control: no-cache'); | |
| 251 | - header('Connection: keep-alive'); | |
| 252 | - header('X-Accel-Buffering: no'); | |
| 253 | - | |
| 254 | - ob_implicit_flush(true); | |
| 255 | - flush(); | |
| 256 | - | |
| 257 | - $this->streaming_headers_sent = true; | |
| 258 | - return true; | |
| 259 | -} | |
| 260 | - | |
| 261 | -/** | |
| 262 | - * Class constructor | |
| 263 | - */ | |
| 264 | -public function __construct() { | |
| 265 | - $this->options = get_option('mxchat_options'); | |
| 266 | - $this->prompts_options = get_option('mxchat_prompts_options', array()); | |
| 267 | - $this->chat_count = get_option('mxchat_chat_count', 0); | |
| 268 | - $this->word_handler = new MXChat_Word_Handler($this->options); | |
| 269 | - | |
| 270 | - // Add all action hooks | |
| 271 | - add_action('wp_enqueue_scripts', array($this, 'mxchat_enqueue_scripts_styles')); | |
| 272 | - add_action('wp_ajax_mxchat_handle_chat_request', array($this, 'mxchat_handle_chat_request')); | |
| 273 | - add_action('wp_ajax_nopriv_mxchat_handle_chat_request', array($this, 'mxchat_handle_chat_request')); | |
| 274 | - add_action('wp_ajax_mxchat_dismiss_pre_chat_message', array($this, 'mxchat_dismiss_pre_chat_message')); | |
| 275 | - add_action('wp_ajax_nopriv_mxchat_dismiss_pre_chat_message', array($this, 'mxchat_dismiss_pre_chat_message')); | |
| 276 | - | |
| 277 | - // Add the AJAX actions for checking if the pre-chat message was dismissed | |
| 278 | - add_action('wp_ajax_mxchat_check_pre_chat_message_status', array($this, 'mxchat_check_pre_chat_message_status')); | |
| 279 | - add_action('wp_ajax_nopriv_mxchat_check_pre_chat_message_status', array($this, 'mxchat_check_pre_chat_message_status')); | |
| 280 | - add_action('wp_ajax_mxchat_fetch_conversation_history', [$this, 'mxchat_fetch_conversation_history']); | |
| 281 | - add_action('wp_ajax_nopriv_mxchat_fetch_conversation_history', [$this, 'mxchat_fetch_conversation_history']); | |
| 282 | - add_action('wp_ajax_mxchat_add_to_cart', [$this, 'mxchat_add_to_cart']); | |
| 283 | - add_action('wp_ajax_nopriv_mxchat_add_to_cart', [$this, 'mxchat_add_to_cart']); | |
| 284 | - | |
| 285 | - // Add REST API routes registration | |
| 286 | - add_action('rest_api_init', array($this, 'register_routes')); | |
| 287 | - add_action('wp_ajax_mxchat_fetch_new_messages', array($this, 'mxchat_fetch_new_messages')); | |
| 288 | - add_action('wp_ajax_nopriv_mxchat_fetch_new_messages', array($this, 'mxchat_fetch_new_messages')); | |
| 289 | - | |
| 290 | - // Rate limit action - notice we removed the old schedule setup | |
| 291 | - add_action('mxchat_reset_rate_limits', array($this, 'mxchat_reset_rate_limits')); | |
| 292 | - | |
| 293 | - // File upload and handling actions | |
| 294 | - add_action('wp_ajax_mxchat_upload_pdf', [$this, 'handle_pdf_upload']); | |
| 295 | - add_action('wp_ajax_nopriv_mxchat_upload_pdf', [$this, 'handle_pdf_upload']); | |
| 296 | - add_action('wp_ajax_mxchat_remove_pdf', [$this, 'handle_pdf_remove']); | |
| 297 | - add_action('wp_ajax_nopriv_mxchat_remove_pdf', [$this, 'handle_pdf_remove']); | |
| 298 | - | |
| 299 | - // Word document handling actions | |
| 300 | - add_action('wp_ajax_mxchat_upload_word', array($this, 'mxchat_handle_word_upload')); | |
| 301 | - add_action('wp_ajax_nopriv_mxchat_upload_word', array($this, 'mxchat_handle_word_upload')); | |
| 302 | - add_action('wp_ajax_mxchat_remove_word', array($this, 'mxchat_handle_word_remove')); | |
| 303 | - add_action('wp_ajax_nopriv_mxchat_remove_word', array($this, 'mxchat_handle_word_remove')); | |
| 304 | - add_action('wp_ajax_mxchat_check_word_status', array($this, 'mxchat_check_word_status')); | |
| 305 | - add_action('wp_ajax_nopriv_mxchat_check_word_status', array($this, 'mxchat_check_word_status')); | |
| 306 | - | |
| 307 | - // Email handling actions | |
| 308 | - add_action('wp_ajax_nopriv_mxchat_handle_save_email_and_response', [$this, 'mxchat_handle_save_email_and_response']); | |
| 309 | - add_action('wp_ajax_mxchat_handle_save_email_and_response', [$this, 'mxchat_handle_save_email_and_response']); | |
| 310 | - add_action('wp_ajax_nopriv_mxchat_check_email_provided', [$this, 'mxchat_check_email_provided']); | |
| 311 | - add_action('wp_ajax_mxchat_check_email_provided', [$this, 'mxchat_check_email_provided']); | |
| 312 | - | |
| 313 | - add_action('wp_ajax_mxchat_stream_chat', array($this, 'mxchat_handle_chat_request')); | |
| 314 | - add_action('wp_ajax_nopriv_mxchat_stream_chat', array($this, 'mxchat_handle_chat_request')); | |
| 315 | - | |
| 316 | - // Testing panel AJAX actions | |
| 317 | - add_action('wp_ajax_mxchat_get_system_info', array($this, 'mxchat_get_system_info')); | |
| 318 | - add_action('wp_ajax_mxchat_get_similarity_threshold', array($this, 'mxchat_get_similarity_threshold')); | |
| 319 | - add_action('wp_ajax_mxchat_get_kb_status', array($this, 'mxchat_get_kb_status')); | |
| 320 | - add_action('wp_ajax_mxchat_start_fresh_session', array($this, 'mxchat_start_fresh_session')); | |
| 321 | - // Add to your existing constructor, in the section with other AJAX actions: | |
| 322 | - add_action('wp_ajax_mxchat_track_url_click', array($this, 'mxchat_track_url_click')); | |
| 323 | - add_action('wp_ajax_nopriv_mxchat_track_url_click', array($this, 'mxchat_track_url_click')); | |
| 324 | - add_action('wp_ajax_mxchat_track_originating_page', array($this, 'mxchat_track_originating_page')); | |
| 325 | - add_action('wp_ajax_nopriv_mxchat_track_originating_page', array($this, 'mxchat_track_originating_page')); | |
| 326 | - // Add chat mode checking actions | |
| 327 | - add_action('wp_ajax_mxchat_get_current_chat_mode', array($this, 'mxchat_get_current_chat_mode')); | |
| 328 | - add_action('wp_ajax_nopriv_mxchat_get_current_chat_mode', array($this, 'mxchat_get_current_chat_mode')); | |
| 329 | - | |
| 330 | - // Nonce refresh for page-cache compatibility (WP Rocket, LiteSpeed, etc.) | |
| 331 | - add_action('wp_ajax_mxchat_refresh_nonce', array($this, 'mxchat_refresh_nonce')); | |
| 332 | - add_action('wp_ajax_nopriv_mxchat_refresh_nonce', array($this, 'mxchat_refresh_nonce')); | |
| 333 | - | |
| 334 | - // Auto-email transcript action | |
| 335 | - add_action('mxchat_send_delayed_transcript', array($this, 'mxchat_send_delayed_transcript'), 10, 1); | |
| 336 | - | |
| 337 | - add_filter('mxchat_check_actions_only', array($this, 'check_actions_for_addons'), 10, 4); | |
| 338 | - | |
| 339 | - | |
| 340 | -} | |
| 341 | - | |
| 342 | -/** | |
| 343 | - * Return a fresh nonce so cached pages can replace the stale one. | |
| 344 | - * With `with_settings`, also returns the current behavior-gate settings so | |
| 345 | - * the widget can correct stale inline-localized values (plan-32db95). | |
| 346 | - */ | |
| 347 | -public function mxchat_refresh_nonce() { | |
| 348 | - nocache_headers(); | |
| 349 | - $payload = array('nonce' => wp_create_nonce('mxchat_chat_nonce')); | |
| 350 | - if (!empty($_REQUEST['with_settings'])) { | |
| 351 | - $payload['settings'] = $this->get_dynamic_widget_settings(true); | |
| 352 | - } | |
| 353 | - wp_send_json_success($payload); | |
| 354 | -} | |
| 355 | - | |
| 356 | -/** | |
| 357 | - * Behavior-gate settings the widget may re-fetch at runtime (plan-32db95). | |
| 358 | - * | |
| 359 | - * Every widget setting ships inline in page HTML via wp_localize_script, so | |
| 360 | - * full-page caches (host caches, WP Rocket, LiteSpeed, W3TC, FlyingPress, | |
| 361 | - * WP Super Cache, Cloudflare APO, the browser itself) keep serving a stale | |
| 362 | - * snapshot after an admin changes a setting. MxChat_Cache_Purge clears the | |
| 363 | - * caches PHP can reach; this payload covers the rest — the widget requests | |
| 364 | - * it on first open (via the nonce-refresh endpoints) and merges it over | |
| 365 | - * `mxchatChat`, the same distrust-cached-HTML pattern the 3.2.7 per-request | |
| 366 | - * nonce uses. | |
| 367 | - * | |
| 368 | - * Behavior gates + labels ONLY — colors stay inline because they're also | |
| 369 | - * server-inline-styled, and a runtime swap would visibly flash. | |
| 370 | - * | |
| 371 | - * Both wp_localize_script blocks merge this exact array, so the inline and | |
| 372 | - * refreshed payloads cannot drift. | |
| 373 | - * | |
| 374 | - * @param bool $fresh Re-read mxchat_options from the DB (endpoint paths) | |
| 375 | - * instead of trusting the instance copy. | |
| 376 | - * @return array | |
| 377 | - */ | |
| 378 | -public function get_dynamic_widget_settings($fresh = false) { | |
| 379 | - $options = $fresh ? get_option('mxchat_options', array()) : $this->options; | |
| 380 | - if (!is_array($options)) { | |
| 381 | - $options = array(); | |
| 382 | - } | |
| 383 | - return array( | |
| 384 | - 'model' => isset($options['model']) ? $options['model'] : 'gpt-5.1-chat-latest', | |
| 385 | - 'enable_streaming_toggle' => isset($options['enable_streaming_toggle']) ? $options['enable_streaming_toggle'] : 'on', | |
| 386 | - 'rate_limit_message' => $options['rate_limit_message'] ?? 'Rate limit exceeded. Please try again later.', | |
| 387 | - 'chat_toolbar_toggle' => $options['chat_toolbar_toggle'] ?? 'off', | |
| 388 | - 'print_button_enabled' => $options['print_button_enabled'] ?? 'on', | |
| 389 | - 'print_button_label' => esc_html__('Download Transcript', 'mxchat'), | |
| 390 | - // "Start new chat" header-menu item (plan ac2e81). Default OFF. | |
| 391 | - 'reset_chat_enabled' => $options['reset_chat_enabled'] ?? 'off', | |
| 392 | - 'reset_chat_label' => !empty($options['reset_chat_label']) ? esc_html($options['reset_chat_label']) : esc_html__('Start new chat', 'mxchat'), | |
| 393 | - 'reset_chat_confirm' => esc_html__('Start a new chat? This clears the current conversation.', 'mxchat'), | |
| 394 | - 'stop_button_label' => esc_html__('Stop response', 'mxchat'), | |
| 395 | - 'print_header_title' => esc_html(get_bloginfo('name')) . ' — ' . esc_html__('Chat transcript', 'mxchat'), | |
| 396 | - // Emit 'on'/'off' STRINGS, never booleans: wp_localize_script casts | |
| 397 | - // scalars to string, and (string) false === '' — which the widget's | |
| 398 | - // old gate read as enabled (plan-4bba64). The filter keeps its | |
| 399 | - // boolean contract; only the emitted value is stringified. | |
| 400 | - 'satisfaction_rating_enabled' => apply_filters( | |
| 401 | - 'mxchat_satisfaction_rating_enabled', | |
| 402 | - ($options['satisfaction_rating_enabled'] ?? 'off') === 'on' | |
| 403 | - ) ? 'on' : 'off', | |
| 404 | - 'satisfaction_rating_idle_seconds' => max(5, min(600, intval($options['satisfaction_rating_idle_seconds'] ?? 60))), | |
| 405 | - 'satisfaction_rating_copy' => array( | |
| 406 | - 'question' => !empty($options['satisfaction_rating_question']) ? esc_html($options['satisfaction_rating_question']) : esc_html__('Was this helpful?', 'mxchat'), | |
| 407 | - 'helpful' => esc_html__('Helpful', 'mxchat'), | |
| 408 | - 'not_helpful' => esc_html__('Not helpful', 'mxchat'), | |
| 409 | - 'dismiss' => esc_html__('Dismiss', 'mxchat'), | |
| 410 | - 'thanks' => !empty($options['satisfaction_rating_thanks']) ? esc_html($options['satisfaction_rating_thanks']) : esc_html__('Thanks! Anything we should improve? (optional)', 'mxchat'), | |
| 411 | - 'placeholder' => !empty($options['satisfaction_rating_placeholder']) ? esc_html($options['satisfaction_rating_placeholder']) : esc_html__('Tell us what could be better…', 'mxchat'), | |
| 412 | - 'send' => esc_html__('Send', 'mxchat'), | |
| 413 | - 'skip' => esc_html__('Skip', 'mxchat'), | |
| 414 | - 'saved' => !empty($options['satisfaction_rating_saved']) ? esc_html($options['satisfaction_rating_saved']) : esc_html__('Thanks for the feedback.', 'mxchat'), | |
| 415 | - ), | |
| 416 | - ); | |
| 417 | -} | |
| 418 | - | |
| 419 | -// In your core plugin's check_actions_for_addons method: | |
| 420 | -public function check_actions_for_addons($default, $message, $user_id, $session_id) { | |
| 421 | - //error_log('MxChat Core: check_actions_for_addons called with message: ' . $message); | |
| 422 | - | |
| 423 | - $result = $this->mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id); | |
| 424 | - | |
| 425 | - //error_log('MxChat Core: Intent check result = ' . ($result === false ? 'false' : 'true')); | |
| 426 | - | |
| 427 | - return $result; | |
| 428 | -} | |
| 429 | - | |
| 430 | - private function mxchat_increment_chat_count() { | |
| 431 | - $chat_count = get_option('mxchat_chat_count', 0); | |
| 432 | - $chat_count++; | |
| 433 | - update_option('mxchat_chat_count', $chat_count); | |
| 434 | - } | |
| 435 | - | |
| 436 | -function mxchat_fetch_conversation_history() { | |
| 437 | - if (empty($_POST['session_id'])) { | |
| 438 | - wp_send_json_error(['message' => esc_html__('Session ID missing.', 'mxchat')]); | |
| 439 | - wp_die(); | |
| 440 | - } | |
| 441 | - | |
| 442 | - $session_id = sanitize_text_field($_POST['session_id']); | |
| 443 | - | |
| 444 | - // SECURITY FIX: Verify session ownership before retrieving data | |
| 445 | - // If IP/user changed, signal frontend to reset session instead of blocking | |
| 446 | - $current_user_identifier = MxChat_User::mxchat_get_user_identifier(); | |
| 447 | - | |
| 448 | - // Check if this session has an owner recorded | |
| 449 | - $session_owner = get_option("mxchat_session_owner_{$session_id}"); | |
| 450 | - | |
| 451 | - // Update session owner if it changed (e.g. IP changed due to network switch) | |
| 452 | - // The session ID itself is the authentication — if the client has it, they own it | |
| 453 | - if (!$session_owner || $session_owner !== $current_user_identifier) { | |
| 454 | - update_option("mxchat_session_owner_{$session_id}", $current_user_identifier, 'no'); | |
| 455 | - } | |
| 456 | - | |
| 457 | - $history = get_option("mxchat_history_{$session_id}", []); // Retrieve stored history | |
| 458 | - $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai'); // Get current chat mode | |
| 459 | - | |
| 460 | - if (empty($history)) { | |
| 461 | - // Even if history is empty, return the chat mode | |
| 462 | - wp_send_json_success([ | |
| 463 | - 'conversation' => [], | |
| 464 | - 'chat_mode' => $chat_mode | |
| 465 | - ]); | |
| 466 | - wp_die(); | |
| 467 | - } | |
| 468 | - | |
| 469 | - wp_send_json_success([ | |
| 470 | - 'conversation' => $history, | |
| 471 | - 'chat_mode' => $chat_mode | |
| 472 | - ]); | |
| 473 | - wp_die(); | |
| 474 | -} | |
| 475 | -private function mxchat_fetch_conversation_history_for_ai($session_id, $session_start_timestamp = 0) { | |
| 476 | - $history = get_option("mxchat_history_{$session_id}", []); | |
| 477 | - | |
| 478 | - // Check persistence setting - when OFF, only include messages from current page load | |
| 479 | - $options = get_option('mxchat_options', []); | |
| 480 | - $persistence_enabled = isset($options['chat_persistence_toggle']) && $options['chat_persistence_toggle'] === 'on'; | |
| 481 | - | |
| 482 | - // Filter history when persistence is OFF to match what the user sees | |
| 483 | - if (!$persistence_enabled && $session_start_timestamp > 0) { | |
| 484 | - $history = array_filter($history, function($entry) use ($session_start_timestamp) { | |
| 485 | - // Include messages from this page load onwards | |
| 486 | - return isset($entry['timestamp']) && $entry['timestamp'] >= $session_start_timestamp; | |
| 487 | - }); | |
| 488 | - // Re-index array after filtering | |
| 489 | - $history = array_values($history); | |
| 490 | - } | |
| 491 | - | |
| 492 | - $formatted_history = []; | |
| 493 | - | |
| 494 | - // Adjusted for code-heavy conversations | |
| 495 | - $max_tokens = 120000; // Context window size | |
| 496 | - $reserved_tokens = 5000; // Space for system prompts + current query | |
| 497 | - $current_token_count = 0; | |
| 498 | - | |
| 499 | - // Allowed HTML tags for content sanitization | |
| 500 | - $allowed_tags = [ | |
| 501 | - 'pre' => ['class' => true], | |
| 502 | - 'code' => ['class' => true], | |
| 503 | - 'span' => ['class' => true], | |
| 504 | - 'div' => ['class' => true], | |
| 505 | - 'strong' => [], | |
| 506 | - 'em' => [] | |
| 507 | - ]; | |
| 508 | - | |
| 509 | - foreach (array_reverse($history) as $entry) { | |
| 510 | - // Preserve code blocks while sanitizing other HTML | |
| 511 | - $clean_content = wp_kses($entry['content'], $allowed_tags); | |
| 512 | - | |
| 513 | - // Detect code blocks in content | |
| 514 | - $has_code = false; | |
| 515 | -// Replace the HTML check with: | |
| 516 | -// Allow messages that contain code blocks or are plain text | |
| 517 | -if (strpos($clean_content, '<pre') === false && | |
| 518 | - strpos($clean_content, '<code') === false && | |
| 519 | - $clean_content !== strip_tags($entry['content'])) { | |
| 520 | - continue; | |
| 521 | -} | |
| 522 | - | |
| 523 | - // Skip entries that lost significant content during sanitization | |
| 524 | - if (!$has_code && $clean_content !== strip_tags($entry['content'])) { | |
| 525 | - continue; | |
| 526 | - } | |
| 527 | - | |
| 528 | - // More accurate token estimation (1 token ≈ 4 characters) | |
| 529 | - $token_estimate = ceil(mb_strlen($clean_content, 'UTF-8') / 4); | |
| 530 | - | |
| 531 | - // Check token budget with the new estimate | |
| 532 | - if (($current_token_count + $token_estimate + $reserved_tokens) > $max_tokens) { | |
| 533 | - // Try to fit partial content if it's the first entry | |
| 534 | - if (empty($formatted_history)) { | |
| 535 | - $clean_content = mb_substr($clean_content, 0, ($max_tokens - $reserved_tokens) * 4); | |
| 536 | - $token_estimate = ceil(mb_strlen($clean_content, 'UTF-8') / 4); | |
| 537 | - } else { | |
| 538 | - break; | |
| 539 | - } | |
| 540 | - } | |
| 541 | - | |
| 542 | - // Add to formatted history | |
| 543 | - $formatted_history[] = [ | |
| 544 | - 'role' => $entry['role'], | |
| 545 | - 'content' => $clean_content | |
| 546 | - ]; | |
| 547 | - | |
| 548 | - $current_token_count += $token_estimate; | |
| 549 | - } | |
| 550 | - | |
| 551 | - // Reverse back to maintain chronological order | |
| 552 | - $formatted_history = array_reverse($formatted_history); | |
| 553 | - | |
| 554 | - // Add system message about code context | |
| 555 | - array_unshift($formatted_history, [ | |
| 556 | - 'role' => 'system', | |
| 557 | - 'content' => 'Preserved code blocks are marked with [CODE BLOCK PRESERVED]. ' | |
| 558 | - . 'Maintain formatting and syntax highlighting when referencing code.' | |
| 559 | - ]); | |
| 560 | - | |
| 561 | - return $formatted_history; | |
| 562 | -} | |
| 563 | - | |
| 564 | -public function register_routes() { | |
| 565 | - //error_log(esc_html__('Registering MxChat REST routes', 'mxchat')); | |
| 566 | - | |
| 567 | - // Per-request chat-send nonce endpoint — issues a fresh nonce on demand | |
| 568 | - // so the chat widget never depends on a stale nonce embedded in cached HTML. | |
| 569 | - // Public (no auth), rate-limited (1 call / IP / second via a transient). | |
| 570 | - register_rest_route('mxchat/v1', '/nonce', [ | |
| 571 | - 'methods' => 'GET', | |
| 572 | - 'callback' => [$this, 'mxchat_issue_chat_send_nonce'], | |
| 573 | - 'permission_callback' => '__return_true', | |
| 574 | - ]); | |
| 575 | - | |
| 576 | - register_rest_route('mxchat/v1', '/stream', [ | |
| 577 | - 'methods' => 'GET', | |
| 578 | - 'callback' => [$this, 'mxchat_stream_events'], | |
| 579 | - 'permission_callback' => [$this, 'verify_chat_session'], | |
| 580 | - ]); | |
| 581 | - | |
| 582 | - register_rest_route('mxchat/v1', '/agent-response', [ | |
| 583 | - 'methods' => 'POST', | |
| 584 | - 'callback' => [$this, 'mxchat_handle_agent_response'], | |
| 585 | - 'permission_callback' => [$this, 'verify_slack_request'], | |
| 586 | - ]); | |
| 587 | - | |
| 588 | - register_rest_route('mxchat/v1', '/slack-interaction', [ | |
| 589 | - 'methods' => 'POST', | |
| 590 | - 'callback' => [$this, 'handle_slack_interaction'], | |
| 591 | - 'permission_callback' => [$this, 'verify_slack_request'], | |
| 592 | - ]); | |
| 593 | - | |
| 594 | - register_rest_route('mxchat/v1', '/slack-messages', [ | |
| 595 | - 'methods' => 'POST', | |
| 596 | - 'callback' => [$this, 'handle_slack_messages'], | |
| 597 | - 'permission_callback' => [$this, 'verify_slack_request'], | |
| 598 | - ]); | |
| 599 | - | |
| 600 | - // Telegram webhook endpoint | |
| 601 | - register_rest_route('mxchat/v1', '/telegram-webhook', [ | |
| 602 | - 'methods' => 'POST', | |
| 603 | - 'callback' => [$this, 'handle_telegram_webhook'], | |
| 604 | - 'permission_callback' => [$this, 'verify_telegram_request'], | |
| 605 | - ]); | |
| 606 | - | |
| 607 | - //error_log(esc_html__('MxChat REST routes registered', 'mxchat')); | |
| 608 | -} | |
| 609 | - | |
| 610 | -/** | |
| 611 | - * Issue a fresh per-request nonce for chat-send. Returned to the widget which | |
| 612 | - * caches it for the session and includes it on every chat-send / stream-send / | |
| 613 | - * upload call. By moving the nonce out of inline `window.mxchatChat = {...}` HTML | |
| 614 | - * we eliminate the entire class of "first-message Access denied" failures that | |
| 615 | - * plague WP installs behind a full-page cache (WP Rocket, LiteSpeed, FlyingPress, | |
| 616 | - * W3 Total Cache, Cloudflare APO) — the nonce is never cached because it never | |
| 617 | - * lives in the HTML body. | |
| 618 | - * | |
| 619 | - * Public endpoint. Rate-limited to 1 call / IP / 1s via a transient so a single | |
| 620 | - * client browser can't be used to flood the nonce-issuance path. | |
| 621 | - * | |
| 622 | - * Nonce action: `mxchat_chat_send` (new). The chat-send AJAX handlers accept | |
| 623 | - * BOTH this action AND the legacy `mxchat_chat_nonce` action for a 30-day | |
| 624 | - * backwards-compat window so cached pages still in users' browsers don't break | |
| 625 | - * mid-session. | |
| 626 | - * | |
| 627 | - * @since 3.2.7 | |
| 628 | - */ | |
| 629 | -public function mxchat_issue_chat_send_nonce(WP_REST_Request $request) { | |
| 630 | - $ip = ''; | |
| 631 | - if (!empty($_SERVER['REMOTE_ADDR'])) { | |
| 632 | - $ip = preg_replace('#[^0-9a-fA-F:\.]#', '', wp_unslash((string) $_SERVER['REMOTE_ADDR'])); | |
| 633 | - } | |
| 634 | - if ($ip !== '') { | |
| 635 | - // Best-effort rate limit. WP transients with sub-second TTL are racy | |
| 636 | - // (parallel bursts can squeak through before set_transient completes); | |
| 637 | - // we use 2s to make the gate slightly more reliable. Real production | |
| 638 | - // rate-limiting at sub-second granularity needs Redis or DB row locks | |
| 639 | - // — out of scope for this endpoint, which is already cheap. | |
| 640 | - $key = 'mxchat_nonce_rl_' . md5($ip); | |
| 641 | - if (get_transient($key)) { | |
| 642 | - return new WP_REST_Response(array( | |
| 643 | - 'error' => 'rate_limited', | |
| 644 | - 'message' => __('Too many nonce requests. Try again shortly.', 'mxchat'), | |
| 645 | - ), 429); | |
| 646 | - } | |
| 647 | - set_transient($key, 1, 2); | |
| 648 | - } | |
| 649 | - | |
| 650 | - // The widget calls this endpoint without an X-WP-Nonce header, so WordPress does not | |
| 651 | - // honor the auth cookie and the request runs as uid=0 even for logged-in users. That | |
| 652 | - // makes wp_create_nonce() bind the nonce to uid=0, which then fails wp_verify_nonce() | |
| 653 | - // at admin-ajax (which runs as the real uid) -> logged-in users get a 403 on upload. | |
| 654 | - // Resolve the real user from the logged_in cookie so the nonce binds to the correct uid. | |
| 655 | - if ( ! is_user_logged_in() ) { | |
| 656 | - $maybe_uid = wp_validate_auth_cookie( '', 'logged_in' ); | |
| 657 | - if ( $maybe_uid ) { | |
| 658 | - wp_set_current_user( $maybe_uid ); | |
| 659 | - } | |
| 660 | - } | |
| 661 | - | |
| 662 | - $payload = array( | |
| 663 | - 'nonce' => wp_create_nonce('mxchat_chat_send'), | |
| 664 | - 'expires_in' => 86400, // WP nonces live 24h; widget caches for 12h conservatively. | |
| 665 | - ); | |
| 666 | - | |
| 667 | - // plan-32db95: the widget's first-open refresh asks for current behavior | |
| 668 | - // settings in the same round-trip, so stale inline-localized values on | |
| 669 | - // cached pages get corrected without a second request. All values in | |
| 670 | - // this payload already ship in public page HTML — nothing sensitive. | |
| 671 | - if ($request->get_param('with_settings')) { | |
| 672 | - $payload['settings'] = $this->get_dynamic_widget_settings(true); | |
| 673 | - } | |
| 674 | - | |
| 675 | - return new WP_REST_Response($payload, 200); | |
| 676 | -} | |
| 677 | - | |
| 678 | -/** | |
| 679 | - * Verify a chat-send nonce. Accepts BOTH the new `mxchat_chat_send` action | |
| 680 | - * (issued by /wp-json/mxchat/v1/nonce) AND the legacy `mxchat_chat_nonce` | |
| 681 | - * action (inline-localized in older cached HTML). The legacy acceptance is | |
| 682 | - * a 30-day backwards-compat window — to be removed in a follow-up release | |
| 683 | - * after 2026-06-27. | |
| 684 | - * | |
| 685 | - * @param string $posted_nonce | |
| 686 | - * @return bool | |
| 687 | - */ | |
| 688 | -public static function mxchat_verify_chat_send_nonce($posted_nonce) { | |
| 689 | - if (!is_string($posted_nonce) || $posted_nonce === '') { | |
| 690 | - return false; | |
| 691 | - } | |
| 692 | - return (bool) wp_verify_nonce($posted_nonce, 'mxchat_chat_send') | |
| 693 | - || (bool) wp_verify_nonce($posted_nonce, 'mxchat_chat_nonce'); | |
| 694 | -} | |
| 695 | - | |
| 696 | -/** | |
| 697 | - * Verify valid chat session | |
| 698 | - */ | |
| 699 | -public function verify_chat_session($request) { | |
| 700 | - $session_id = $request->get_param('session_id'); | |
| 701 | - if (empty($session_id)) { | |
| 702 | - //error_log(esc_html__('Empty session ID in chat request', 'mxchat')); | |
| 703 | - return false; | |
| 704 | - } | |
| 705 | - | |
| 706 | - $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai'); | |
| 707 | - return $chat_mode === 'agent'; | |
| 708 | -} | |
| 709 | - | |
| 710 | -/** | |
| 711 | - * Verify request is coming from Slack. | |
| 712 | - * | |
| 713 | - * @param WP_REST_Request $request | |
| 714 | - * @return bool True if valid, false otherwise. | |
| 715 | - */ | |
| 716 | -public function verify_slack_request($request) { | |
| 717 | - // Get the Slack signing secret from your plugin options | |
| 718 | - $valid_key = $this->options['live_agent_secret_key'] ?? ''; | |
| 719 | - | |
| 720 | - if (empty($valid_key)) { | |
| 721 | - //error_log(esc_html__('Slack signing secret not configured', 'mxchat')); | |
| 722 | - return false; | |
| 723 | - } | |
| 724 | - | |
| 725 | - $timestamp = $request->get_header('X-Slack-Request-Timestamp'); | |
| 726 | - $slack_signature = $request->get_header('X-Slack-Signature'); | |
| 727 | - | |
| 728 | - // Verify timestamp to prevent replay attacks | |
| 729 | - if (abs(time() - intval($timestamp)) > 300) { | |
| 730 | - //error_log(esc_html__('Slack request timestamp too old', 'mxchat')); | |
| 731 | - return false; | |
| 732 | - } | |
| 733 | - | |
| 734 | - // Get raw request body from the WP_REST_Request object | |
| 735 | - // (php://input may already be consumed by WordPress at this point) | |
| 736 | - $request_body = $request->get_body(); | |
| 737 | - | |
| 738 | - // Create the signature base string | |
| 739 | - $sig_basestring = "v0:{$timestamp}:{$request_body}"; | |
| 740 | - | |
| 741 | - // Calculate expected signature | |
| 742 | - $my_signature = 'v0=' . hash_hmac('sha256', $sig_basestring, $valid_key); | |
| 743 | - | |
| 744 | - // Compare signatures | |
| 745 | - return hash_equals($my_signature, $slack_signature); | |
| 746 | -} | |
| 747 | - | |
| 748 | -/** | |
| 749 | - * Verify request is coming from Telegram. | |
| 750 | - * | |
| 751 | - * @param WP_REST_Request $request | |
| 752 | - * @return bool True if valid, false otherwise. | |
| 753 | - */ | |
| 754 | -public function verify_telegram_request($request) { | |
| 755 | - $secret_token = $this->options['telegram_webhook_secret'] ?? ''; | |
| 756 | - | |
| 757 | - //error_log('[MxChat Telegram DEBUG] verify_telegram_request called'); | |
| 758 | - //error_log('[MxChat Telegram DEBUG] Stored secret: ' . (empty($secret_token) ? 'EMPTY' : substr($secret_token, 0, 10) . '...')); | |
| 759 | - | |
| 760 | - if (empty($secret_token)) { | |
| 761 | - // If no secret is configured, allow the request (for initial setup) | |
| 762 | - //error_log('[MxChat Telegram DEBUG] No secret configured, allowing request'); | |
| 763 | - return true; | |
| 764 | - } | |
| 765 | - | |
| 766 | - // Telegram sends the secret token in the X-Telegram-Bot-Api-Secret-Token header | |
| 767 | - $request_token = $request->get_header('X-Telegram-Bot-Api-Secret-Token'); | |
| 768 | - | |
| 769 | - //error_log('[MxChat Telegram DEBUG] Request token: ' . (empty($request_token) ? 'EMPTY' : substr($request_token, 0, 10) . '...')); | |
| 770 | - | |
| 771 | - if (empty($request_token)) { | |
| 772 | - //error_log('[MxChat Telegram DEBUG] Request rejected: No token in header'); | |
| 773 | - return false; | |
| 774 | - } | |
| 775 | - | |
| 776 | - // Timing-safe comparison | |
| 777 | - $result = hash_equals($secret_token, $request_token); | |
| 778 | - //error_log('[MxChat Telegram DEBUG] Token comparison result: ' . ($result ? 'MATCH' : 'MISMATCH')); | |
| 779 | - return $result; | |
| 780 | -} | |
| 781 | - | |
| 782 | -public function mxchat_stream_events(WP_REST_Request $request) { | |
| 783 | - header('Content-Type: text/event-stream'); | |
| 784 | - header('Cache-Control: no-cache'); | |
| 785 | - header('Connection: keep-alive'); | |
| 786 | - | |
| 787 | - $session_id = sanitize_text_field($request->get_param('session_id')); | |
| 788 | - $last_seen_id = sanitize_text_field($request->get_param('last_seen_id')) ?: ''; | |
| 789 | - | |
| 790 | - if (empty($session_id)) { | |
| 791 | - echo esc_html__("event: error\ndata: ", 'mxchat') . esc_html__('Missing session_id', 'mxchat') . "\n\n"; | |
| 792 | - flush(); | |
| 793 | - exit; | |
| 794 | - } | |
| 795 | - | |
| 796 | - $history = get_option("mxchat_history_{$session_id}", []); | |
| 797 | - | |
| 798 | - // Filter only new messages | |
| 799 | - $new_messages = array_filter($history, function ($message) use ($last_seen_id) { | |
| 800 | - return !empty($message['id']) && $message['id'] > $last_seen_id; | |
| 801 | - }); | |
| 802 | - | |
| 803 | - // Send new messages if available | |
| 804 | - if (!empty($new_messages)) { | |
| 805 | - echo esc_html__("event: newMessages\ndata: ", 'mxchat') . json_encode(array_values($new_messages)) . "\n\n"; | |
| 806 | - } else { | |
| 807 | - // Keep the connection alive | |
| 808 | - echo esc_html__("event: keepAlive\ndata: ", 'mxchat') . "{}\n\n"; | |
| 809 | - } | |
| 810 | - flush(); | |
| 811 | - exit; | |
| 812 | -} | |
| 813 | - | |
| 814 | - | |
| 815 | - | |
| 816 | - | |
| 817 | -private function mxchat_save_chat_message($session_id, $role, $message, $originating_page = null, $rag_context = null) { | |
| 818 | - global $wpdb; | |
| 819 | - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; | |
| 820 | - //error_log("[DEBUG] mxchat_save_chat_message -> START for session_id: {$session_id}, role: {$role}"); | |
| 821 | - | |
| 822 | - // Check if this is the first message in a new session (before any other database operations) | |
| 823 | - $is_new_session = false; | |
| 824 | - if ($role === 'user') { // Only check for user messages, not bot responses | |
| 825 | - $existing_messages = $wpdb->get_var($wpdb->prepare( | |
| 826 | - "SELECT COUNT(*) FROM $table_name WHERE session_id = %s", | |
| 827 | - $session_id | |
| 828 | - )); | |
| 829 | - $is_new_session = ($existing_messages == 0); | |
| 830 | - | |
| 831 | - // Log for debugging | |
| 832 | - if ($is_new_session) { | |
| 833 | - //error_log("[DEBUG] This is a NEW session - first message"); | |
| 834 | - } | |
| 835 | - } | |
| 836 | - | |
| 837 | - // SECURITY FIX: Set session ownership for new sessions | |
| 838 | - if ($is_new_session && $role === 'user') { | |
| 839 | - $current_user_identifier = MxChat_User::mxchat_get_user_identifier(); | |
| 840 | - $session_owner_key = "mxchat_session_owner_{$session_id}"; | |
| 841 | - | |
| 842 | - // Only set ownership if not already set | |
| 843 | - if (!get_option($session_owner_key)) { | |
| 844 | - update_option($session_owner_key, $current_user_identifier, 'no'); | |
| 845 | - //error_log("[DEBUG] Set session ownership for {$session_id} to {$current_user_identifier}"); | |
| 846 | - } | |
| 847 | - } | |
| 848 | - | |
| 849 | - // 1) Extract agent name if present | |
| 850 | - $agent_name = ''; | |
| 851 | - if (preg_match('/^Agent: (.*?) - /', $message, $matches)) { | |
| 852 | - $agent_name = $matches[1]; | |
| 853 | - $message = str_replace("Agent: $agent_name - ", '', $message); | |
| 854 | - $session_meta_key = "mxchat_agent_name_{$session_id}"; | |
| 855 | - if (empty(get_option($session_meta_key))) { | |
| 856 | - update_option($session_meta_key, $agent_name); | |
| 857 | - //error_log("[DEBUG] mxchat_save_chat_message -> Stored agent_name in option: {$session_meta_key} => {$agent_name}"); | |
| 858 | - } | |
| 859 | - } | |
| 860 | - | |
| 861 | - // 2) Generate unique message_id | |
| 862 | - $message_id = uniqid(); | |
| 863 | - //error_log("[DEBUG] mxchat_save_chat_message -> Generated message_id: {$message_id}"); | |
| 864 | - | |
| 865 | - // 3) Determine user_id | |
| 866 | - $user_id = is_user_logged_in() ? get_current_user_id() : 0; | |
| 867 | - | |
| 868 | - // 4) Determine user_identifier | |
| 869 | - $user_identifier = $agent_name | |
| 870 | - ? $agent_name | |
| 871 | - : MxChat_User::mxchat_get_user_identifier(); | |
| 872 | - | |
| 873 | - // 5) Determine displayed_name | |
| 874 | - $user_email = MxChat_User::mxchat_get_user_email(); | |
| 875 | - $displayed_name = $agent_name ? $agent_name : ($user_email ?: $user_identifier); | |
| 876 | - | |
| 877 | - // 6) Check for a saved email in wp_options | |
| 878 | - $email_option_key = "mxchat_email_{$session_id}"; | |
| 879 | - $saved_email = get_option($email_option_key); | |
| 880 | - //error_log("[DEBUG] mxchat_save_chat_message -> Checking wp_options for email_option_key: {$email_option_key}, found: {$saved_email}"); | |
| 881 | - | |
| 882 | - // Check for a saved name in wp_options | |
| 883 | - $name_option_key = "mxchat_name_{$session_id}"; | |
| 884 | - $saved_name = get_option($name_option_key); | |
| 885 | - //error_log("[DEBUG] mxchat_save_chat_message -> Checking wp_options for name_option_key: {$name_option_key}, found: {$saved_name}"); | |
| 886 | - | |
| 887 | - // If found, update DB user_email and user_name | |
| 888 | - if ($saved_email || $saved_name) { | |
| 889 | - $update_data = []; | |
| 890 | - if ($saved_email) { | |
| 891 | - $update_data['user_email'] = $saved_email; | |
| 892 | - } | |
| 893 | - if ($saved_name) { | |
| 894 | - $update_data['user_name'] = $saved_name; | |
| 895 | - } | |
| 896 | - | |
| 897 | - if (!empty($update_data)) { | |
| 898 | - $update_res = $wpdb->update( | |
| 899 | - $table_name, | |
| 900 | - $update_data, | |
| 901 | - ['session_id' => $session_id], | |
| 902 | - array_fill(0, count($update_data), '%s'), | |
| 903 | - ['%s'] | |
| 904 | - ); | |
| 905 | - //error_log("[DEBUG] mxchat_save_chat_message -> Attempted DB user_email/user_name update for session_id {$session_id}. update_res: {$update_res}"); | |
| 906 | - } | |
| 907 | - } | |
| 908 | - | |
| 909 | - // 7) Save to session history in wp_options | |
| 910 | - $history_key = "mxchat_history_{$session_id}"; | |
| 911 | - $history = get_option($history_key, []); | |
| 912 | - $history[] = [ | |
| 913 | - 'id' => $message_id, | |
| 914 | - 'role' => $role, | |
| 915 | - 'content' => $message, | |
| 916 | - 'timestamp' => round(microtime(true) * 1000), | |
| 917 | - 'agent_name' => $displayed_name, | |
| 918 | - ]; | |
| 919 | - update_option($history_key, $history, 'no'); | |
| 920 | - //error_log("[DEBUG] mxchat_save_chat_message -> Updated session history in option: {$history_key}"); | |
| 921 | - | |
| 922 | - // 8) Save the message to DB (INSERT) | |
| 923 | - $insert_data = [ | |
| 924 | - 'user_id' => $user_id, | |
| 925 | - 'user_identifier'=> $user_identifier, | |
| 926 | - 'user_email' => $saved_email ?: $user_email, | |
| 927 | - 'user_name' => $saved_name ?: '', // Add name to insert data | |
| 928 | - 'session_id' => $session_id, | |
| 929 | - 'role' => $role, | |
| 930 | - 'message' => $message, | |
| 931 | - 'timestamp' => current_time('mysql', 1), | |
| 932 | - ]; | |
| 933 | - | |
| 934 | - // IMPROVED: Handle originating page data | |
| 935 | - $columns_exist = $wpdb->get_var("SHOW COLUMNS FROM $table_name LIKE 'originating_page_url'"); | |
| 936 | - | |
| 937 | - if ($columns_exist) { | |
| 938 | - if ($is_new_session && $role === 'user') { | |
| 939 | - // For the first user message, set originating page data | |
| 940 | - | |
| 941 | - // First check if we have it from the parameter | |
| 942 | - if ($originating_page && !empty($originating_page['url'])) { | |
| 943 | - $insert_data['originating_page_url'] = $originating_page['url']; | |
| 944 | - $insert_data['originating_page_title'] = $originating_page['title'] ?? ''; | |
| 945 | - | |
| 946 | - //error_log("[DEBUG] Setting originating page from parameter: " . $originating_page['url']); | |
| 947 | - } | |
| 948 | - // Otherwise check if it's stored in the instance property | |
| 949 | - else if (isset($this->pending_originating_page) && !empty($this->pending_originating_page['url'])) { | |
| 950 | - $insert_data['originating_page_url'] = $this->pending_originating_page['url']; | |
| 951 | - $insert_data['originating_page_title'] = $this->pending_originating_page['title'] ?? ''; | |
| 952 | - | |
| 953 | - //error_log("[DEBUG] Setting originating page from pending_originating_page: " . $this->pending_originating_page['url']); | |
| 954 | - | |
| 955 | - // Clear after using (= null, not unset(): unset() undeclares the property | |
| 956 | - // and the next assignment recreates it dynamic, re-triggering the PHP 8.2 deprecation) | |
| 957 | - $this->pending_originating_page = null; | |
| 958 | - } | |
| 959 | - // Fallback to HTTP_REFERER if nothing else is available | |
| 960 | - else if (isset($_SERVER['HTTP_REFERER'])) { | |
| 961 | - $referer_url = esc_url_raw($_SERVER['HTTP_REFERER']); | |
| 962 | - $insert_data['originating_page_url'] = $referer_url; | |
| 963 | - | |
| 964 | - // Generate title from URL | |
| 965 | - $parsed_url = parse_url($referer_url); | |
| 966 | - $path = isset($parsed_url['path']) ? trim($parsed_url['path'], '/') : ''; | |
| 967 | - | |
| 968 | - if (empty($path) || $path === 'index.php' || $path === 'index.html') { | |
| 969 | - $insert_data['originating_page_title'] = 'Homepage'; | |
| 970 | - } else { | |
| 971 | - $title = str_replace(['-', '_', '/', '.php', '.html'], ' ', $path); | |
| 972 | - $insert_data['originating_page_title'] = ucwords(trim($title)); | |
| 973 | - } | |
| 974 | - | |
| 975 | - //error_log("[DEBUG] Setting originating page from HTTP_REFERER: " . $referer_url); | |
| 976 | - } | |
| 977 | - | |
| 978 | - // Store for this session so all messages have the same originating page | |
| 979 | - if (!empty($insert_data['originating_page_url'])) { | |
| 980 | - update_option("mxchat_originating_page_{$session_id}", [ | |
| 981 | - 'url' => $insert_data['originating_page_url'], | |
| 982 | - 'title' => $insert_data['originating_page_title'] | |
| 983 | - ], 'no'); | |
| 984 | - } | |
| 985 | - } else { | |
| 986 | - // For subsequent messages in the session, use the stored originating page | |
| 987 | - $stored_originating = get_option("mxchat_originating_page_{$session_id}"); | |
| 988 | - if ($stored_originating && !empty($stored_originating['url'])) { | |
| 989 | - $insert_data['originating_page_url'] = $stored_originating['url']; | |
| 990 | - $insert_data['originating_page_title'] = $stored_originating['title'] ?? ''; | |
| 991 | - } | |
| 992 | - } | |
| 993 | - } | |
| 994 | - | |
| 995 | - // Add RAG context if provided (for bot messages) | |
| 996 | - if ($rag_context !== null && $role === 'bot') { | |
| 997 | - $rag_context_column_exists = $wpdb->get_var("SHOW COLUMNS FROM $table_name LIKE 'rag_context'"); | |
| 998 | - if ($rag_context_column_exists) { | |
| 999 | - $insert_data['rag_context'] = is_array($rag_context) ? wp_json_encode($rag_context) : $rag_context; | |
| 1000 | - } | |
| 1001 | - } | |
| 1002 | - | |
| 1003 | - $wpdb->insert($table_name, $insert_data); | |
| 1004 | - //error_log("[DEBUG] mxchat_save_chat_message -> Inserted message into DB. row_id: {$wpdb->insert_id}, data: " . print_r($insert_data, true)); | |
| 1005 | - | |
| 1006 | - // 9) Send notification email if this is the first user message in a new session | |
| 1007 | - if ($wpdb->insert_id && $is_new_session && $role === 'user') { | |
| 1008 | - $this->send_new_chat_notification($session_id, array( | |
| 1009 | - 'identifier' => $user_identifier, | |
| 1010 | - 'email' => $saved_email ?: $user_email, | |
| 1011 | - 'ip' => $_SERVER['REMOTE_ADDR'] | |
| 1012 | - )); | |
| 1013 | - } | |
| 1014 | - | |
| 1015 | - // 10) Schedule delayed transcript email if enabled and message is from user | |
| 1016 | - if ($wpdb->insert_id && $role === 'user') { | |
| 1017 | - $this->schedule_delayed_transcript_email($session_id); | |
| 1018 | - } | |
| 1019 | - | |
| 1020 | - //error_log("[DEBUG] mxchat_save_chat_message -> END for session_id: {$session_id}"); | |
| 1021 | - return $message_id; | |
| 1022 | -} | |
| 1023 | - | |
| 1024 | -private function send_new_chat_notification($session_id, $user_info = array()) { | |
| 1025 | - $options = get_option('mxchat_transcripts_options'); | |
| 1026 | - | |
| 1027 | - // Check if notifications are enabled | |
| 1028 | - if (empty($options['mxchat_enable_notifications'])) { | |
| 1029 | - return false; | |
| 1030 | - } | |
| 1031 | - | |
| 1032 | - // Get notification email | |
| 1033 | - $to = !empty($options['mxchat_notification_email']) ? | |
| 1034 | - $options['mxchat_notification_email'] : | |
| 1035 | - get_option('admin_email'); | |
| 1036 | - | |
| 1037 | - if (!is_email($to)) { | |
| 1038 | - return false; | |
| 1039 | - } | |
| 1040 | - | |
| 1041 | - // Prepare email content | |
| 1042 | - $subject = sprintf('[%s] New Chat Session Started', get_bloginfo('name')); | |
| 1043 | - | |
| 1044 | - $user_identifier = isset($user_info['identifier']) ? $user_info['identifier'] : 'Guest'; | |
| 1045 | - $user_email = isset($user_info['email']) ? $user_info['email'] : 'Not provided'; | |
| 1046 | - $user_ip = isset($user_info['ip']) ? $user_info['ip'] : $_SERVER['REMOTE_ADDR']; | |
| 1047 | - | |
| 1048 | - $message = sprintf( | |
| 1049 | - "A new chat session has started on your website.\n\n" . | |
| 1050 | - "Session ID: %s\n" . | |
| 1051 | - "User: %s\n" . | |
| 1052 | - "Email: %s\n" . | |
| 1053 | - "IP Address: %s\n" . | |
| 1054 | - "Time: %s\n\n" . | |
| 1055 | - "View transcripts: %s", | |
| 1056 | - $session_id, | |
| 1057 | - $user_identifier, | |
| 1058 | - $user_email, | |
| 1059 | - $user_ip, | |
| 1060 | - current_time('mysql'), | |
| 1061 | - admin_url('admin.php?page=mxchat-transcripts') | |
| 1062 | - ); | |
| 1063 | - | |
| 1064 | - // Send email | |
| 1065 | - return wp_mail($to, $subject, $message); | |
| 1066 | -} | |
| 1067 | - | |
| 1068 | -/** | |
| 1069 | - * Schedule delayed transcript email for a session | |
| 1070 | - * Reschedules if a new user message is received | |
| 1071 | - */ | |
| 1072 | -private function schedule_delayed_transcript_email($session_id) { | |
| 1073 | - $options = get_option('mxchat_transcripts_options'); | |
| 1074 | - | |
| 1075 | - // Check if auto-email is enabled | |
| 1076 | - if (empty($options['mxchat_auto_email_transcript_enabled'])) { | |
| 1077 | - return; | |
| 1078 | - } | |
| 1079 | - | |
| 1080 | - // Get notification email | |
| 1081 | - $email = !empty($options['mxchat_notification_email']) ? | |
| 1082 | - $options['mxchat_notification_email'] : | |
| 1083 | - get_option('admin_email'); | |
| 1084 | - | |
| 1085 | - if (!is_email($email)) { | |
| 1086 | - return; | |
| 1087 | - } | |
| 1088 | - | |
| 1089 | - // Get delay in minutes (default 30) | |
| 1090 | - $delay_minutes = isset($options['mxchat_auto_email_transcript_delay']) ? | |
| 1091 | - intval($options['mxchat_auto_email_transcript_delay']) : 30; | |
| 1092 | - | |
| 1093 | - // Clear any existing scheduled event for this session | |
| 1094 | - $hook = 'mxchat_send_delayed_transcript'; | |
| 1095 | - $args = array($session_id); | |
| 1096 | - $timestamp = wp_next_scheduled($hook, $args); | |
| 1097 | - | |
| 1098 | - if ($timestamp) { | |
| 1099 | - wp_unschedule_event($timestamp, $hook, $args); | |
| 1100 | - } | |
| 1101 | - | |
| 1102 | - // Schedule new event | |
| 1103 | - $schedule_time = time() + ($delay_minutes * 60); | |
| 1104 | - wp_schedule_single_event($schedule_time, $hook, $args); | |
| 1105 | -} | |
| 1106 | - | |
| 1107 | -/** | |
| 1108 | - * Check if chat messages contain contact information (email or phone number) | |
| 1109 | - * | |
| 1110 | - * @param array $messages Array of message objects with 'message' property | |
| 1111 | - * @param object|null $session_data Session data object with user_email property | |
| 1112 | - * @return bool True if contact info found, false otherwise | |
| 1113 | - */ | |
| 1114 | -private function chat_contains_contact_info($messages, $session_data = null) { | |
| 1115 | - // Check if session already has a stored email | |
| 1116 | - if ($session_data && !empty($session_data->user_email)) { | |
| 1117 | - return true; | |
| 1118 | - } | |
| 1119 | - | |
| 1120 | - // Email regex pattern | |
| 1121 | - $email_pattern = '/\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b/'; | |
| 1122 | - | |
| 1123 | - // Phone number patterns (covers various formats including international, WhatsApp style) | |
| 1124 | - // Matches: +1234567890, (123) 456-7890, 123-456-7890, 123.456.7890, 1234567890, +1 234 567 8900, etc. | |
| 1125 | - $phone_pattern = '/(?:\+?\d{1,3}[-.\s]?)?\(?\d{2,4}\)?[-.\s]?\d{2,4}[-.\s]?\d{2,4}(?:[-.\s]?\d{1,4})?/'; | |
| 1126 | - | |
| 1127 | - // Only check user messages (not assistant responses) | |
| 1128 | - foreach ($messages as $msg) { | |
| 1129 | - if ($msg->role !== 'user') { | |
| 1130 | - continue; | |
| 1131 | - } | |
| 1132 | - | |
| 1133 | - $message_text = $msg->message; | |
| 1134 | - | |
| 1135 | - // Check for email | |
| 1136 | - if (preg_match($email_pattern, $message_text)) { | |
| 1137 | - return true; | |
| 1138 | - } | |
| 1139 | - | |
| 1140 | - // Check for phone number (must be at least 7 digits total to avoid false positives) | |
| 1141 | - if (preg_match($phone_pattern, $message_text, $matches)) { | |
| 1142 | - // Count actual digits to avoid matching short numbers | |
| 1143 | - $digits_only = preg_replace('/\D/', '', $matches[0]); | |
| 1144 | - if (strlen($digits_only) >= 7) { | |
| 1145 | - return true; | |
| 1146 | - } | |
| 1147 | - } | |
| 1148 | - } | |
| 1149 | - | |
| 1150 | - return false; | |
| 1151 | -} | |
| 1152 | - | |
| 1153 | -/** | |
| 1154 | - * Send the delayed transcript email with .txt attachment | |
| 1155 | - */ | |
| 1156 | -public function mxchat_send_delayed_transcript($session_id) { | |
| 1157 | - global $wpdb; | |
| 1158 | - | |
| 1159 | - $options = get_option('mxchat_transcripts_options'); | |
| 1160 | - | |
| 1161 | - // Get notification email | |
| 1162 | - $to = !empty($options['mxchat_notification_email']) ? | |
| 1163 | - $options['mxchat_notification_email'] : | |
| 1164 | - get_option('admin_email'); | |
| 1165 | - | |
| 1166 | - if (!is_email($to)) { | |
| 1167 | - return false; | |
| 1168 | - } | |
| 1169 | - | |
| 1170 | - // Get all messages for this session | |
| 1171 | - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; | |
| 1172 | - $messages = $wpdb->get_results($wpdb->prepare( | |
| 1173 | - "SELECT role, message, timestamp FROM {$table_name} | |
| 1174 | - WHERE session_id = %s | |
| 1175 | - ORDER BY timestamp ASC", | |
| 1176 | - $session_id | |
| 1177 | - )); | |
| 1178 | - | |
| 1179 | - if (empty($messages)) { | |
| 1180 | - return false; | |
| 1181 | - } | |
| 1182 | - | |
| 1183 | - // Get session metadata | |
| 1184 | - $sessions_table = $wpdb->prefix . 'mxchat_sessions'; | |
| 1185 | - $session_data = $wpdb->get_row($wpdb->prepare( | |
| 1186 | - "SELECT * FROM {$sessions_table} WHERE session_id = %s", | |
| 1187 | - $session_id | |
| 1188 | - )); | |
| 1189 | - | |
| 1190 | - // Check if contact info is required and if it's present | |
| 1191 | - $require_contact = !empty($options['mxchat_auto_email_transcript_require_contact']); | |
| 1192 | - if ($require_contact && !$this->chat_contains_contact_info($messages, $session_data)) { | |
| 1193 | - // Contact info required but not found - skip sending | |
| 1194 | - return false; | |
| 1195 | - } | |
| 1196 | - | |
| 1197 | - // Build transcript content | |
| 1198 | - $transcript_content = "Chat Transcript\n"; | |
| 1199 | - $transcript_content .= "================\n\n"; | |
| 1200 | - $transcript_content .= "Session ID: " . $session_id . "\n"; | |
| 1201 | - | |
| 1202 | - if ($session_data) { | |
| 1203 | - $transcript_content .= "User: " . ($session_data->user_identifier ?: 'Guest') . "\n"; | |
| 1204 | - $transcript_content .= "Email: " . ($session_data->user_email ?: 'Not provided') . "\n"; | |
| 1205 | - $transcript_content .= "Started: " . $session_data->created_at . "\n"; | |
| 1206 | - } | |
| 1207 | - | |
| 1208 | - $transcript_content .= "\n" . str_repeat("=", 50) . "\n\n"; | |
| 1209 | - | |
| 1210 | - // Add messages | |
| 1211 | - foreach ($messages as $msg) { | |
| 1212 | - $role_label = ($msg->role === 'user') ? 'User' : 'Assistant'; | |
| 1213 | - $transcript_content .= "[{$msg->timestamp}] {$role_label}:\n"; | |
| 1214 | - $transcript_content .= $msg->message . "\n\n"; | |
| 1215 | - } | |
| 1216 | - | |
| 1217 | - // Create temporary file for attachment using WP_Filesystem | |
| 1218 | - $upload_dir = wp_upload_dir(); | |
| 1219 | - $temp_file = $upload_dir['basedir'] . '/mxchat-transcript-' . $session_id . '.txt'; | |
| 1220 | - global $wp_filesystem; | |
| 1221 | - if (empty($wp_filesystem)) { | |
| 1222 | - require_once ABSPATH . 'wp-admin/includes/file.php'; | |
| 1223 | - WP_Filesystem(); | |
| 1224 | - } | |
| 1225 | - $wp_filesystem->put_contents($temp_file, $transcript_content, FS_CHMOD_FILE); | |
| 1226 | - | |
| 1227 | - // Prepare email | |
| 1228 | - $subject = sprintf('[%s] Chat Transcript - Session %s', get_bloginfo('name'), substr($session_id, 0, 8)); | |
| 1229 | - | |
| 1230 | - $message = "Please find attached the full chat transcript.\n\n"; | |
| 1231 | - $message .= "Session ID: {$session_id}\n"; | |
| 1232 | - | |
| 1233 | - if ($session_data) { | |
| 1234 | - $message .= "User: " . ($session_data->user_identifier ?: 'Guest') . "\n"; | |
| 1235 | - $message .= "Email: " . ($session_data->user_email ?: 'Not provided') . "\n"; | |
| 1236 | - } | |
| 1237 | - | |
| 1238 | - $message .= "\nView online: " . admin_url('admin.php?page=mxchat-transcripts'); | |
| 1239 | - | |
| 1240 | - // Send email with attachment | |
| 1241 | - $attachments = array($temp_file); | |
| 1242 | - $result = wp_mail($to, $subject, $message, '', $attachments); | |
| 1243 | - | |
| 1244 | - // Clean up temporary file | |
| 1245 | - if (file_exists($temp_file)) { | |
| 1246 | - unlink($temp_file); | |
| 1247 | - } | |
| 1248 | - | |
| 1249 | - return $result; | |
| 1250 | -} | |
| 1251 | - | |
| 1252 | - | |
| 1253 | - | |
| 1254 | -public function mxchat_handle_save_email_and_response() { | |
| 1255 | - //error_log('[DEBUG] ---------- mxchat_handle_save_email_and_response START ----------'); | |
| 1256 | - //error_log('DEBUG: POST data: ' . print_r($_POST, true)); | |
| 1257 | - | |
| 1258 | - nocache_headers(); | |
| 1259 | - | |
| 1260 | - // Validate nonce | |
| 1261 | - if (!isset($_POST['nonce']) || !MxChat_Integrator::mxchat_verify_chat_send_nonce($_POST['nonce'])) { | |
| 1262 | - //error_log(esc_html__('[ERROR] Invalid nonce in mxchat_handle_save_email_and_response', 'mxchat')); | |
| 1263 | - wp_send_json_error(['message' => esc_html__('Invalid nonce.', 'mxchat')]); | |
| 1264 | - wp_die(); | |
| 1265 | - } | |
| 1266 | - | |
| 1267 | - $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : ''; | |
| 1268 | - $email = isset($_POST['email']) ? sanitize_email($_POST['email']) : ''; | |
| 1269 | - $name = isset($_POST['name']) ? sanitize_text_field($_POST['name']) : ''; | |
| 1270 | - | |
| 1271 | - //error_log("[DEBUG] handle_save_email_and_response -> session_id: {$session_id}, email: {$email}, name: {$name}"); | |
| 1272 | - | |
| 1273 | - if (empty($session_id) || $session_id === 'null' || empty($email)) { | |
| 1274 | - //error_log("[ERROR] Missing session_id or email: session_id={$session_id}, email={$email}"); | |
| 1275 | - wp_send_json_error(['message' => esc_html__('Session ID or email is missing.', 'mxchat')]); | |
| 1276 | - wp_die(); | |
| 1277 | - } | |
| 1278 | - | |
| 1279 | - // Validate name if provided (check if name field is enabled and name is required) | |
| 1280 | - $options = get_option('mxchat_options', []); | |
| 1281 | - $name_field_enabled = isset($options['enable_name_field']) && | |
| 1282 | - ($options['enable_name_field'] === '1' || $options['enable_name_field'] === 'on'); | |
| 1283 | - | |
| 1284 | - if ($name_field_enabled && (empty($name) || strlen(trim($name)) < 2 || strlen(trim($name)) > 100)) { | |
| 1285 | - //error_log("[ERROR] Invalid name: {$name} (enabled: {$name_field_enabled})"); | |
| 1286 | - wp_send_json_error(['message' => esc_html__('Name must be between 2 and 100 characters.', 'mxchat')]); | |
| 1287 | - wp_die(); | |
| 1288 | - } | |
| 1289 | - | |
| 1290 | - // 1) Always store email in wp_options | |
| 1291 | - $email_option_key = "mxchat_email_{$session_id}"; | |
| 1292 | - update_option($email_option_key, $email, 'no'); | |
| 1293 | - //error_log("[DEBUG] handle_save_email_and_response -> updated option: {$email_option_key} => {$email}"); | |
| 1294 | - | |
| 1295 | - // Store name in wp_options if provided | |
| 1296 | - if (!empty($name)) { | |
| 1297 | - $name_option_key = "mxchat_name_{$session_id}"; | |
| 1298 | - update_option($name_option_key, $name, 'no'); | |
| 1299 | - //error_log("[DEBUG] handle_save_email_and_response -> updated option: {$name_option_key} => {$name}"); | |
| 1300 | - } | |
| 1301 | - | |
| 1302 | - // 2) (Optional) Also store in DB if a row already exists | |
| 1303 | - global $wpdb; | |
| 1304 | - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; | |
| 1305 | - | |
| 1306 | - // Make sure we have a valid placeholder in prepare | |
| 1307 | - $sql = $wpdb->prepare("SELECT COUNT(*) FROM {$table_name} WHERE session_id = %s", $session_id); | |
| 1308 | - $session_count = $wpdb->get_var($sql); | |
| 1309 | - | |
| 1310 | - //error_log("[DEBUG] handle_save_email_and_response -> session_count for {$session_id}: {$session_count} (SQL: {$sql})"); | |
| 1311 | - | |
| 1312 | - if ($session_count) { | |
| 1313 | - // Update both user_email and user_name if row(s) exist | |
| 1314 | - if (!empty($name)) { | |
| 1315 | - $update_sql = $wpdb->prepare( | |
| 1316 | - "UPDATE {$table_name} SET user_email = %s, user_name = %s WHERE session_id = %s", | |
| 1317 | - $email, | |
| 1318 | - $name, | |
| 1319 | - $session_id | |
| 1320 | - ); | |
| 1321 | - } else { | |
| 1322 | - $update_sql = $wpdb->prepare( | |
| 1323 | - "UPDATE {$table_name} SET user_email = %s WHERE session_id = %s", | |
| 1324 | - $email, | |
| 1325 | - $session_id | |
| 1326 | - ); | |
| 1327 | - } | |
| 1328 | - $wpdb->query($update_sql); | |
| 1329 | - //error_log("[DEBUG] handle_save_email_and_response -> DB updated: {$update_sql}"); | |
| 1330 | - } else { | |
| 1331 | - //error_log("[INFO] handle_save_email_and_response -> No DB entry for {$session_id}, so email/name is only in wp_options."); | |
| 1332 | - } | |
| 1333 | - | |
| 1334 | - // Provide success response (same as original) | |
| 1335 | - $bot_message = __('Thanks for providing your email! You can continue chatting now.', 'mxchat'); | |
| 1336 | - //error_log("[DEBUG] handle_save_email_and_response -> success, returning bot_message: {$bot_message}"); | |
| 1337 | - wp_send_json_success(['message' => $bot_message]); | |
| 1338 | - wp_die(); | |
| 1339 | -} | |
| 1340 | - | |
| 1341 | -public function mxchat_check_email_provided() { | |
| 1342 | - //error_log('[DEBUG] ---------- mxchat_check_email_provided START ----------'); | |
| 1343 | - | |
| 1344 | - nocache_headers(); | |
| 1345 | - | |
| 1346 | - if (!isset($_POST['nonce']) || !MxChat_Integrator::mxchat_verify_chat_send_nonce($_POST['nonce'])) { | |
| 1347 | - //error_log('[ERROR] Invalid nonce in mxchat_check_email_provided'); | |
| 1348 | - wp_send_json_error(['message' => esc_html__('Invalid nonce', 'mxchat')]); | |
| 1349 | - } | |
| 1350 | - | |
| 1351 | - $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : ''; | |
| 1352 | - if (empty($session_id) || $session_id === 'null') { | |
| 1353 | - //error_log('[ERROR] No session ID provided in mxchat_check_email_provided'); | |
| 1354 | - wp_send_json_error(['message' => esc_html__('No session ID provided', 'mxchat')]); | |
| 1355 | - } | |
| 1356 | - | |
| 1357 | - // Check if the user is logged in | |
| 1358 | - if (is_user_logged_in()) { | |
| 1359 | - $current_user = wp_get_current_user(); | |
| 1360 | - //error_log("[DEBUG] User is logged in as {$current_user->user_email}"); | |
| 1361 | - | |
| 1362 | - // Get user's display name for logged in users | |
| 1363 | - $user_name = !empty($current_user->display_name) ? $current_user->display_name : | |
| 1364 | - (!empty($current_user->first_name) ? $current_user->first_name : ''); | |
| 1365 | - | |
| 1366 | - $response_data = ['logged_in' => true, 'email' => $current_user->user_email]; | |
| 1367 | - if (!empty($user_name)) { | |
| 1368 | - $response_data['name'] = $user_name; | |
| 1369 | - } | |
| 1370 | - | |
| 1371 | - wp_send_json_success($response_data); | |
| 1372 | - } | |
| 1373 | - | |
| 1374 | - // Check if name field is required | |
| 1375 | - $options = get_option('mxchat_options', []); | |
| 1376 | - $name_field_enabled = isset($options['enable_name_field']) && | |
| 1377 | - ($options['enable_name_field'] === '1' || $options['enable_name_field'] === 'on'); | |
| 1378 | - | |
| 1379 | - $email_option_key = "mxchat_email_{$session_id}"; | |
| 1380 | - $stored_email = get_option($email_option_key, ''); | |
| 1381 | - | |
| 1382 | - // Check for stored name | |
| 1383 | - $name_option_key = "mxchat_name_{$session_id}"; | |
| 1384 | - $stored_name = get_option($name_option_key, ''); | |
| 1385 | - | |
| 1386 | - //error_log("[DEBUG] mxchat_check_email_provided -> Checking email option: {$email_option_key}, found: {$stored_email}"); | |
| 1387 | - //error_log("[DEBUG] mxchat_check_email_provided -> Checking name option: {$name_option_key}, found: {$stored_name}, required: " . ($name_field_enabled ? 'yes' : 'no')); | |
| 1388 | - | |
| 1389 | - // Check if we have email and name (if name is required) | |
| 1390 | - $has_required_info = !empty($stored_email); | |
| 1391 | - | |
| 1392 | - if ($name_field_enabled) { | |
| 1393 | - $has_required_info = $has_required_info && !empty($stored_name); | |
| 1394 | - } | |
| 1395 | - | |
| 1396 | - if ($has_required_info) { | |
| 1397 | - //error_log("[DEBUG] mxchat_check_email_provided -> Required info found, returning success"); | |
| 1398 | - | |
| 1399 | - $response_data = ['email' => $stored_email]; | |
| 1400 | - if (!empty($stored_name)) { | |
| 1401 | - $response_data['name'] = $stored_name; | |
| 1402 | - } | |
| 1403 | - | |
| 1404 | - wp_send_json_success($response_data); | |
| 1405 | - } else { | |
| 1406 | - //error_log("[DEBUG] mxchat_check_email_provided -> Required info missing, returning error"); | |
| 1407 | - wp_send_json_error(['message' => esc_html__('No email found', 'mxchat')]); | |
| 1408 | - } | |
| 1409 | -} | |
| 1410 | - | |
| 1411 | -/** | |
| 1412 | - * Send error response in appropriate format based on streaming mode | |
| 1413 | - * ADDED: Helper method to consistently handle errors in both streaming and non-streaming modes | |
| 1414 | - * | |
| 1415 | - * @param string $error_message The error message to display | |
| 1416 | - * @param string $error_code Optional error code for debugging | |
| 1417 | - */ | |
| 1418 | -private function send_error_response($error_message, $error_code = 'api_error') { | |
| 1419 | - if ($this->is_streaming) { | |
| 1420 | - echo "data: " . json_encode([ | |
| 1421 | - 'error' => true, | |
| 1422 | - 'error_message' => $error_message, | |
| 1423 | - 'error_code' => $error_code, | |
| 1424 | - 'text' => $error_message, | |
| 1425 | - 'message' => $error_message | |
| 1426 | - ]) . "\n\n"; | |
| 1427 | - echo "data: [DONE]\n\n"; | |
| 1428 | - flush(); | |
| 1429 | - } else { | |
| 1430 | - wp_send_json_error([ | |
| 1431 | - 'error_message' => $error_message, | |
| 1432 | - 'error_code' => $error_code | |
| 1433 | - ]); | |
| 1434 | - } | |
| 1435 | - wp_die(); | |
| 1436 | -} | |
| 1437 | - | |
| 1438 | -public function mxchat_handle_chat_request() { | |
| 1439 | - global $wpdb; | |
| 1440 | - | |
| 1441 | - // Debug: Log incoming bot_id | |
| 1442 | - $bot_id = isset($_POST['bot_id']) ? sanitize_key($_POST['bot_id']) : 'default'; | |
| 1443 | - //error_log("=== MXCHAT DEBUG: Starting chat request ==="); | |
| 1444 | - //error_log("MXCHAT DEBUG: Bot ID received: " . $bot_id); | |
| 1445 | - | |
| 1446 | - // Get bot-specific options | |
| 1447 | - $bot_options = $this->get_bot_options($bot_id); | |
| 1448 | - $current_options = !empty($bot_options) ? $bot_options : $this->options; | |
| 1449 | - | |
| 1450 | - // Check if this is a streaming request | |
| 1451 | - // Allow force_streaming_test parameter to bypass the setting check (for admin compatibility testing) | |
| 1452 | - $force_streaming_test = isset($_POST['force_streaming_test']) && $_POST['force_streaming_test'] === '1' && current_user_can('administrator'); | |
| 1453 | - $is_streaming = isset($_POST['action']) && $_POST['action'] === 'mxchat_stream_chat' && | |
| 1454 | - ($force_streaming_test || (isset($current_options['enable_streaming_toggle']) && $current_options['enable_streaming_toggle'] === 'on')); | |
| 1455 | - | |
| 1456 | - // ADDED: Store streaming state in class property for use in private methods | |
| 1457 | - $this->is_streaming = $is_streaming; | |
| 1458 | - | |
| 1459 | - // NOTE: Streaming headers are now set later via setup_streaming_headers() | |
| 1460 | - // This allows actions/forms to return JSON responses without header conflicts | |
| 1461 | - | |
| 1462 | - // Check if MX Chat Moderation is active | |
| 1463 | - if (class_exists('MX_Chat_Moderation')) { | |
| 1464 | - // Get user email and IP | |
| 1465 | - $user_email = ''; | |
| 1466 | - $user_ip = $_SERVER['REMOTE_ADDR']; | |
| 1467 | - | |
| 1468 | - // If user is logged in, get their email | |
| 1469 | - if (is_user_logged_in()) { | |
| 1470 | - $current_user = wp_get_current_user(); | |
| 1471 | - $user_email = $current_user->user_email; | |
| 1472 | - } | |
| 1473 | - | |
| 1474 | - // Create ban handler instance | |
| 1475 | - $ban_handler = new MX_Chat_Ban_Handler(); | |
| 1476 | - | |
| 1477 | - // Check if user is banned by IP | |
| 1478 | - if ($ban_handler->check_ban($user_ip, 'ip')) { | |
| 1479 | - wp_send_json([ | |
| 1480 | - 'success' => false, | |
| 1481 | - 'message' => esc_html__('Access denied. Your IP address has been banned.', 'mxchat'), | |
| 1482 | - 'status' => 'banned' | |
| 1483 | - ]); | |
| 1484 | - wp_die(); | |
| 1485 | - } | |
| 1486 | - | |
| 1487 | - // If user is logged in, also check email | |
| 1488 | - if (!empty($user_email) && $ban_handler->check_ban($user_email, 'email')) { | |
| 1489 | - wp_send_json([ | |
| 1490 | - 'success' => false, | |
| 1491 | - 'message' => esc_html__('Access denied. Your email address has been banned.', 'mxchat'), | |
| 1492 | - 'status' => 'banned' | |
| 1493 | - ]); | |
| 1494 | - wp_die(); | |
| 1495 | - } | |
| 1496 | - } | |
| 1497 | - | |
| 1498 | - $this->fallbackResponse = ['text' => '', 'html' => '', 'images' => []]; | |
| 1499 | - $this->productCardHtml = ''; | |
| 1500 | - // Reset the per-turn function-calling UI capture (plan 48a57a). | |
| 1501 | - $this->fc_ui_html = ''; | |
| 1502 | - $this->fc_ui_images = array(); | |
| 1503 | - $this->fc_ui_captured = false; | |
| 1504 | - | |
| 1505 | - // Get the actual WordPress user ID if logged in | |
| 1506 | - $is_logged_in = is_user_logged_in(); | |
| 1507 | - if ($is_logged_in) { | |
| 1508 | - $user_id = get_current_user_id(); // This will get the actual WordPress user ID | |
| 1509 | - } else { | |
| 1510 | - // For logged-out users, use your existing identifier method | |
| 1511 | - $user_id = $this->mxchat_get_user_identifier(); | |
| 1512 | - } | |
| 1513 | - | |
| 1514 | - // Get and sanitize the user identifier | |
| 1515 | - $user_id = sanitize_key($user_id); | |
| 1516 | - | |
| 1517 | - // Check rate limit using new settings structure | |
| 1518 | - $rate_limit_result = $this->check_rate_limit(); | |
| 1519 | - | |
| 1520 | - if ($rate_limit_result !== true) { | |
| 1521 | - wp_send_json([ | |
| 1522 | - 'success' => false, | |
| 1523 | - 'message' => $rate_limit_result['message'], | |
| 1524 | - 'status' => 'rate_limit_exceeded' | |
| 1525 | - ]); | |
| 1526 | - wp_die(); | |
| 1527 | - } | |
| 1528 | - | |
| 1529 | - // Rest of your existing code... | |
| 1530 | - $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : ''; | |
| 1531 | - | |
| 1532 | - // Treat the literal strings 'null' / 'undefined' as missing too. Browser edge cases | |
| 1533 | - // (Safari ITP, private mode, cross-origin iframes with partitioned storage) can cause | |
| 1534 | - // the frontend FormData.append() to stringify a null session_id into the literal | |
| 1535 | - // "null", which would otherwise pass empty() and pollute the transcripts table with | |
| 1536 | - // ghost sessions that group every visitor's first message under one row. | |
| 1537 | - if ($session_id === 'null' || $session_id === 'undefined') { | |
| 1538 | - $session_id = ''; | |
| 1539 | - } | |
| 1540 | - | |
| 1541 | - if (empty($session_id)) { | |
| 1542 | - wp_send_json_error(esc_html__('Session ID is missing.', 'mxchat')); | |
| 1543 | - wp_die(); | |
| 1544 | - } | |
| 1545 | - | |
| 1546 | - // Update session owner if it changed (e.g. IP changed due to network switch) | |
| 1547 | - // The session ID itself is the authentication — if the client has it, they own it | |
| 1548 | - $current_user_identifier = MxChat_User::mxchat_get_user_identifier(); | |
| 1549 | - $session_owner = get_option("mxchat_session_owner_{$session_id}"); | |
| 1550 | - | |
| 1551 | - if (!$session_owner || $session_owner !== $current_user_identifier) { | |
| 1552 | - update_option("mxchat_session_owner_{$session_id}", $current_user_identifier, 'no'); | |
| 1553 | - } | |
| 1554 | - | |
| 1555 | - // Validate and sanitize the incoming message | |
| 1556 | - if (empty($_POST['message'])) { | |
| 1557 | - wp_send_json_error(esc_html__('No message received.', 'mxchat')); | |
| 1558 | - wp_die(); | |
| 1559 | - } | |
| 1560 | - | |
| 1561 | - // Enforce the configurable max input length (plan a3fae2 part C). 0 = unlimited. | |
| 1562 | - // Server-side guard backing the textarea's client-side maxlength (which is bypassable). | |
| 1563 | - // Reads the global core setting and measures characters (mb_strlen on the unslashed | |
| 1564 | - // raw POST), matching the maxlength semantics. | |
| 1565 | - $mxchat_max_input_length = isset($this->options['max_input_length']) ? intval($this->options['max_input_length']) : 0; | |
| 1566 | - if ($mxchat_max_input_length > 0) { | |
| 1567 | - $mxchat_incoming_raw = is_string($_POST['message']) ? wp_unslash($_POST['message']) : ''; | |
| 1568 | - if (mb_strlen($mxchat_incoming_raw) > $mxchat_max_input_length) { | |
| 1569 | - wp_send_json([ | |
| 1570 | - 'success' => false, | |
| 1571 | - /* translators: %d: maximum allowed characters */ | |
| 1572 | - 'message' => sprintf(esc_html__('Your message is too long. Please keep it under %d characters.', 'mxchat'), $mxchat_max_input_length), | |
| 1573 | - 'status' => 'message_too_long' | |
| 1574 | - ]); | |
| 1575 | - wp_die(); | |
| 1576 | - } | |
| 1577 | - } | |
| 1578 | - | |
| 1579 | - | |
| 1580 | - // Track originating page for first message in session | |
| 1581 | - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; | |
| 1582 | - | |
| 1583 | - // Check if originating page columns exist | |
| 1584 | - $columns_exist = $wpdb->get_var("SHOW COLUMNS FROM $table_name LIKE 'originating_page_url'"); | |
| 1585 | - | |
| 1586 | - if ($columns_exist) { | |
| 1587 | - // Check if this session already has messages | |
| 1588 | - $message_count = $wpdb->get_var($wpdb->prepare( | |
| 1589 | - "SELECT COUNT(*) FROM $table_name WHERE session_id = %s", | |
| 1590 | - $session_id | |
| 1591 | - )); | |
| 1592 | - | |
| 1593 | - // If this is the first message in the session | |
| 1594 | - if ($message_count == 0) { | |
| 1595 | - // Get originating page from JavaScript (preferred) or HTTP_REFERER (fallback) | |
| 1596 | - $originating_url = ''; | |
| 1597 | - $originating_title = ''; | |
| 1598 | - | |
| 1599 | - // Try to get from POST data first (sent by JavaScript) | |
| 1600 | - if (isset($_POST['current_page_url'])) { | |
| 1601 | - $originating_url = esc_url_raw($_POST['current_page_url']); | |
| 1602 | - $originating_title = isset($_POST['current_page_title']) | |
| 1603 | - ? sanitize_text_field($_POST['current_page_title']) | |
| 1604 | - : ''; | |
| 1605 | - } | |
| 1606 | - // Fallback to HTTP_REFERER if not provided by JavaScript | |
| 1607 | - else if (isset($_SERVER['HTTP_REFERER'])) { | |
| 1608 | - $originating_url = esc_url_raw($_SERVER['HTTP_REFERER']); | |
| 1609 | - } | |
| 1610 | - | |
| 1611 | - // Generate title if we have URL but no title | |
| 1612 | - if ($originating_url && empty($originating_title)) { | |
| 1613 | - $parsed_url = parse_url($originating_url); | |
| 1614 | - $path = isset($parsed_url['path']) ? trim($parsed_url['path'], '/') : ''; | |
| 1615 | - | |
| 1616 | - if (empty($path) || $path === 'index.php' || $path === 'index.html') { | |
| 1617 | - $originating_title = 'Homepage'; | |
| 1618 | - } else { | |
| 1619 | - // Clean up the path to make a readable title | |
| 1620 | - $originating_title = str_replace(['-', '_', '/', '.php', '.html'], ' ', $path); | |
| 1621 | - $originating_title = ucwords(trim($originating_title)); | |
| 1622 | - } | |
| 1623 | - } | |
| 1624 | - | |
| 1625 | - // Store for later use when saving the message | |
| 1626 | - $this->pending_originating_page = [ | |
| 1627 | - 'url' => $originating_url, | |
| 1628 | - 'title' => $originating_title | |
| 1629 | - ]; | |
| 1630 | - } | |
| 1631 | - } | |
| 1632 | - | |
| 1633 | - | |
| 1634 | - | |
| 1635 | - // Get page context if provided | |
| 1636 | - $page_context = null; | |
| 1637 | - if (isset($_POST['page_context']) && !empty($_POST['page_context'])) { | |
| 1638 | - $page_context_raw = stripslashes($_POST['page_context']); | |
| 1639 | - $page_context = json_decode($page_context_raw, true); | |
| 1640 | - | |
| 1641 | - // Validate page context structure | |
| 1642 | - if (is_array($page_context) && | |
| 1643 | - isset($page_context['url']) && | |
| 1644 | - isset($page_context['title']) && | |
| 1645 | - isset($page_context['content'])) { | |
| 1646 | - | |
| 1647 | - // Sanitize page context | |
| 1648 | - $page_context['url'] = esc_url_raw($page_context['url']); | |
| 1649 | - $page_context['title'] = sanitize_text_field($page_context['title']); | |
| 1650 | - $page_context['content'] = wp_kses_post($page_context['content']); | |
| 1651 | - } else { | |
| 1652 | - $page_context = null; | |
| 1653 | - } | |
| 1654 | - } | |
| 1655 | - | |
| 1656 | - // Modify the message sanitization to preserve PHP tags in code blocks | |
| 1657 | - $allowed_tags = [ | |
| 1658 | - 'pre' => [], | |
| 1659 | - 'code' => ['class' => true], | |
| 1660 | - 'span' => ['class' => true], | |
| 1661 | - 'div' => ['class' => true], | |
| 1662 | - ]; | |
| 1663 | - | |
| 1664 | - // First preserve code blocks | |
| 1665 | - $message = preg_replace_callback('/<pre><code.*?>.*?<\/code><\/pre>/s', function($matches) { | |
| 1666 | - return htmlspecialchars_decode($matches[0]); | |
| 1667 | - }, $_POST['message']); | |
| 1668 | - | |
| 1669 | - // Then apply sanitization | |
| 1670 | - $message = wp_kses($message, $allowed_tags); | |
| 1671 | - | |
| 1672 | - // Preserve code blocks from markdown conversion | |
| 1673 | - $message = preg_replace('/```(\w+)?\s*([\s\S]+?)```/s', '<pre><code class="$1">$2</code></pre>', $message); | |
| 1674 | - $message = apply_filters('mxchat_filter_message', $message, 'prompt', $session_id); | |
| 1675 | - | |
| 1676 | - // ===== SIMPLIFIED TESTING PANEL INITIALIZATION ===== | |
| 1677 | - // Always initialize testing data for admins (no toggle needed) | |
| 1678 | - $testing_data = null; | |
| 1679 | - if (current_user_can('administrator')) { | |
| 1680 | - // For vision messages, use the original user message for the query display | |
| 1681 | - $query_for_testing = $message; | |
| 1682 | - if (isset($_POST['vision_processed']) && $_POST['vision_processed'] && isset($_POST['original_user_message'])) { | |
| 1683 | - $query_for_testing = sanitize_textarea_field($_POST['original_user_message']); | |
| 1684 | - } | |
| 1685 | - | |
| 1686 | - $testing_data = [ | |
| 1687 | - 'query' => $query_for_testing, | |
| 1688 | - 'timestamp' => time(), | |
| 1689 | - 'top_matches' => [], | |
| 1690 | - 'action_matches' => [], // Initialize action matches array | |
| 1691 | - 'page_context' => $page_context, // Include page context in testing data | |
| 1692 | - 'is_vision' => isset($_POST['vision_processed']) && $_POST['vision_processed'], | |
| 1693 | - 'bot_id' => $bot_id // Include bot ID in testing data | |
| 1694 | - ]; | |
| 1695 | - | |
| 1696 | - // Get similarity threshold from bot options or default options | |
| 1697 | - $similarity_threshold = isset($current_options['similarity_threshold']) | |
| 1698 | - ? ((int) $current_options['similarity_threshold']) / 100 | |
| 1699 | - : 0.35; | |
| 1700 | - | |
| 1701 | - $testing_data['similarity_threshold'] = $similarity_threshold; | |
| 1702 | - | |
| 1703 | - // Determine knowledge base type using bot-specific config | |
| 1704 | - $bot_pinecone_config = $this->get_bot_pinecone_config($bot_id); | |
| 1705 | - $use_pinecone = isset($bot_pinecone_config['use_pinecone']) ? $bot_pinecone_config['use_pinecone'] : false; | |
| 1706 | - $testing_data['knowledge_base_type'] = $use_pinecone ? 'Pinecone' : 'WordPress Database'; | |
| 1707 | - } | |
| 1708 | - // ===== END SIMPLIFIED TESTING INITIALIZATION ===== | |
| 1709 | - | |
| 1710 | - // Add debug before and after: | |
| 1711 | - //error_log('MxChat Core: About to call mxchat_pre_process_message filter with message: ' . $message); | |
| 1712 | - $pre_processed_result = apply_filters('mxchat_pre_process_message', $message, $user_id, $session_id); | |
| 1713 | - //error_log('MxChat Core: Filter returned: ' . (is_array($pre_processed_result) ? 'array' : $pre_processed_result)); | |
| 1714 | - | |
| 1715 | - | |
| 1716 | - // If the pre-processing returned a result (not the original message), use it directly | |
| 1717 | - if (is_array($pre_processed_result) && isset($pre_processed_result['text'])) { | |
| 1718 | - // Save the AI response | |
| 1719 | - $this->mxchat_save_chat_message($session_id, 'bot', $pre_processed_result['text']); | |
| 1720 | - | |
| 1721 | - // Save HTML content if provided | |
| 1722 | - if (!empty($pre_processed_result['html'])) { | |
| 1723 | - $this->mxchat_save_chat_message($session_id, 'bot', $pre_processed_result['html']); | |
| 1724 | - } | |
| 1725 | - | |
| 1726 | - // Add testing data if admin | |
| 1727 | - $response_data = [ | |
| 1728 | - 'text' => $pre_processed_result['text'], | |
| 1729 | - 'html' => $pre_processed_result['html'] ?? '', | |
| 1730 | - 'session_id' => $session_id | |
| 1731 | - ]; | |
| 1732 | - | |
| 1733 | - if ($testing_data !== null) { | |
| 1734 | - $response_data['testing_data'] = $testing_data; | |
| 1735 | - } | |
| 1736 | - | |
| 1737 | - wp_send_json($response_data); | |
| 1738 | - wp_die(); | |
| 1739 | - } | |
| 1740 | - | |
| 1741 | - // Save the user's message - handle vision processed messages differently | |
| 1742 | - if (isset($_POST['vision_processed']) && $_POST['vision_processed'] && isset($_POST['original_user_message'])) { | |
| 1743 | - // For vision messages, save the original user message with image indicator | |
| 1744 | - $original_message = sanitize_textarea_field($_POST['original_user_message']); | |
| 1745 | - if (isset($_POST['vision_images_count']) && $_POST['vision_images_count'] > 0) { | |
| 1746 | - $image_count = intval($_POST['vision_images_count']); | |
| 1747 | - $original_message .= " [{$image_count} image(s)]"; | |
| 1748 | - } | |
| 1749 | - $this->mxchat_save_chat_message($session_id, 'user', $original_message); | |
| 1750 | - } else { | |
| 1751 | - // Regular message - save as normal | |
| 1752 | - $this->mxchat_save_chat_message($session_id, 'user', $message); | |
| 1753 | - } | |
| 1754 | - | |
| 1755 | - | |
| 1756 | - if (is_email($message)) { | |
| 1757 | - // Add the email to Loops | |
| 1758 | - $this->add_email_to_loops($message); | |
| 1759 | - | |
| 1760 | - // Get the user's success message instruction using current_options | |
| 1761 | - $user_success_message = $current_options['email_capture_response'] ?? __('Thank you for providing your email! You\'ve been added to our list.', 'mxchat'); | |
| 1762 | - | |
| 1763 | - // Set instruction for AI using the user's success message | |
| 1764 | - $this->current_action_instruction = $user_success_message; | |
| 1765 | - | |
| 1766 | - // Clear the email capture transient since we got the email | |
| 1767 | - delete_transient('mxchat_email_capture_' . $user_id); | |
| 1768 | - } | |
| 1769 | - | |
| 1770 | - // Check if we're in an email capture flow but user hasn't provided email yet | |
| 1771 | - elseif (get_transient('mxchat_email_capture_' . $user_id)) { | |
| 1772 | - // Check if the message contains an email (not the whole message being an email) | |
| 1773 | - if (preg_match('/\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b/', $message, $matches)) { | |
| 1774 | - $extracted_email = $matches[0]; | |
| 1775 | - | |
| 1776 | - // Add the extracted email to Loops | |
| 1777 | - $this->add_email_to_loops($extracted_email); | |
| 1778 | - | |
| 1779 | - // Get the user's success message instruction using current_options | |
| 1780 | - $user_success_message = $current_options['email_capture_response'] ?? __('Thank you for providing your email! You\'ve been added to our list.', 'mxchat'); | |
| 1781 | - | |
| 1782 | - // Set instruction for AI using the user's success message | |
| 1783 | - $this->current_action_instruction = $user_success_message; | |
| 1784 | - | |
| 1785 | - // Clear the email capture transient since we got the email | |
| 1786 | - delete_transient('mxchat_email_capture_' . $user_id); | |
| 1787 | - } | |
| 1788 | - // If no email found but we're in capture mode, remind them | |
| 1789 | - else { | |
| 1790 | - // Get the original instruction to remind them using current_options | |
| 1791 | - $original_instruction = $current_options['triggered_phrase_response'] ?? __("Please provide your email address.", 'mxchat'); | |
| 1792 | - $this->current_action_instruction = $original_instruction; | |
| 1793 | - } | |
| 1794 | - } | |
| 1795 | - | |
| 1796 | - $intent_info = ''; | |
| 1797 | - | |
| 1798 | - // Check chat mode | |
| 1799 | - $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai'); | |
| 1800 | - | |
| 1801 | - // Handle agent mode | |
| 1802 | - // Handle agent mode | |
| 1803 | - if ($chat_mode === 'agent') { | |
| 1804 | - // First, check for switch intent before doing anything else | |
| 1805 | - $intent_matched = $this->mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id); | |
| 1806 | - | |
| 1807 | - // Capture action analysis for testing panel after intent check | |
| 1808 | - if ($testing_data !== null && isset($this->last_action_analysis) && !empty($this->last_action_analysis)) { | |
| 1809 | - $testing_data['action_matches'] = $this->last_action_analysis; | |
| 1810 | - } | |
| 1811 | - | |
| 1812 | - // Around line 506, in the agent mode handling section: | |
| 1813 | - if ($intent_matched && !empty($this->fallbackResponse['text'])) { | |
| 1814 | - // Update chat mode first | |
| 1815 | - update_option("mxchat_mode_{$session_id}", 'ai'); | |
| 1816 | - | |
| 1817 | - // Clear any existing PDF context to start fresh | |
| 1818 | - $this->clear_pdf_transients($session_id); | |
| 1819 | - | |
| 1820 | - // Prepare clean switch response with explicit chat_mode | |
| 1821 | - $response_data = [ | |
| 1822 | - 'text' => $this->fallbackResponse['text'], | |
| 1823 | - 'html' => $this->fallbackResponse['html'] ?? '', | |
| 1824 | - 'session_id' => $session_id, | |
| 1825 | - 'chat_mode' => 'ai' // EXPLICITLY SET THIS | |
| 1826 | - ]; | |
| 1827 | - | |
| 1828 | - if ($testing_data !== null) { | |
| 1829 | - $response_data['testing_data'] = $testing_data; | |
| 1830 | - } | |
| 1831 | - | |
| 1832 | - // Save the mode switch message | |
| 1833 | - $this->mxchat_save_chat_message($session_id, 'system', esc_html__('Switched to AI chat mode', 'mxchat')); | |
| 1834 | - $this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['text']); | |
| 1835 | - | |
| 1836 | - // Send response and exit | |
| 1837 | - wp_send_json($response_data); | |
| 1838 | - wp_die(); | |
| 1839 | - } elseif (!$intent_matched) { | |
| 1840 | - // No intent matched, handle live agent message | |
| 1841 | - try { | |
| 1842 | - $this->mxchat_send_user_message_to_agent($message, $user_id, $session_id); | |
| 1843 | - | |
| 1844 | - $agent_response = [ | |
| 1845 | - 'status' => 'waiting_for_agent', | |
| 1846 | - 'message' => esc_html__('Message sent to live agent.', 'mxchat') | |
| 1847 | - ]; | |
| 1848 | - | |
| 1849 | - if ($testing_data !== null) { | |
| 1850 | - $agent_response['testing_data'] = $testing_data; | |
| 1851 | - } | |
| 1852 | - | |
| 1853 | - wp_send_json_success($agent_response); | |
| 1854 | - } catch (\Exception $e) { | |
| 1855 | - wp_send_json_error(esc_html__('Failed to send message to agent', 'mxchat')); | |
| 1856 | - } | |
| 1857 | - wp_die(); | |
| 1858 | - } | |
| 1859 | - } | |
| 1860 | - | |
| 1861 | - // Step 1: Check for new PDF URL in the message | |
| 1862 | - if (!isset($_POST['vision_processed']) && preg_match('/https?:\/\/[^\s"]+/i', $message, $matches)) { | |
| 1863 | - $new_pdf_url = $matches[0]; | |
| 1864 | - | |
| 1865 | - // Check if this is likely a PDF-related request | |
| 1866 | - $pdf_keywords = ['pdf', 'document', 'read', 'analyze']; | |
| 1867 | - $is_pdf_request = false; | |
| 1868 | - | |
| 1869 | - foreach ($pdf_keywords as $keyword) { | |
| 1870 | - if (stripos($message, $keyword) !== false) { | |
| 1871 | - $is_pdf_request = true; | |
| 1872 | - break; | |
| 1873 | - } | |
| 1874 | - } | |
| 1875 | - | |
| 1876 | - // If it looks like a PDF request or we're waiting for a PDF URL | |
| 1877 | - if ($is_pdf_request || get_transient('mxchat_waiting_for_pdf_url_' . $session_id)) { | |
| 1878 | - // Validate HTTPS | |
| 1879 | - if (wp_http_validate_url($new_pdf_url) && parse_url($new_pdf_url, PHP_URL_SCHEME) === 'https') { | |
| 1880 | - // Extract filename from URL | |
| 1881 | - $pdf_filename = basename(parse_url($new_pdf_url, PHP_URL_PATH)); | |
| 1882 | - | |
| 1883 | - // Clear previous PDF transients | |
| 1884 | - $this->clear_pdf_transients($session_id); | |
| 1885 | - | |
| 1886 | - // Process new PDF using current_options | |
| 1887 | - $max_pages = $current_options['pdf_max_pages'] ?? 69; | |
| 1888 | - $embeddings = $this->fetch_and_split_pdf_pages($new_pdf_url, $max_pages); | |
| 1889 | - | |
| 1890 | - if ($embeddings === 'too_many_pages') { | |
| 1891 | - $error_text = sprintf( | |
| 1892 | - $current_options['pdf_intent_error_text'] ?? | |
| 1893 | - esc_html__("The provided PDF exceeds the maximum allowed limit of %d pages. Please provide a smaller document.", 'mxchat'), | |
| 1894 | - $max_pages | |
| 1895 | - ); | |
| 1896 | - $this->fallbackResponse['text'] = $error_text; | |
| 1897 | - } elseif ($embeddings) { | |
| 1898 | - // Store new PDF information | |
| 1899 | - $pdf_filename = basename(parse_url($new_pdf_url, PHP_URL_PATH)); | |
| 1900 | - | |
| 1901 | - // If the filename is generic, create a more descriptive one | |
| 1902 | - if (in_array($pdf_filename, ['results_download.php', 'download.php', 'view.php', 'pdf.php']) || | |
| 1903 | - strpos($pdf_filename, '.php') !== false) { | |
| 1904 | - $pdf_filename = 'Document_' . date('Y-m-d_H-i') . '.pdf'; | |
| 1905 | - } | |
| 1906 | - | |
| 1907 | - set_transient('mxchat_pdf_url_' . $session_id, $new_pdf_url, HOUR_IN_SECONDS); | |
| 1908 | - set_transient('mxchat_pdf_filename_' . $session_id, $pdf_filename, HOUR_IN_SECONDS); | |
| 1909 | - set_transient('mxchat_pdf_embeddings_' . $session_id, $embeddings, HOUR_IN_SECONDS); | |
| 1910 | - set_transient('mxchat_include_pdf_in_context_' . $session_id, true, HOUR_IN_SECONDS); | |
| 1911 | - | |
| 1912 | - $success_text = $current_options['pdf_intent_success_text'] ?? | |
| 1913 | - esc_html__("I've processed the new PDF '{$pdf_filename}'. What questions do you have about it?", 'mxchat'); | |
| 1914 | - | |
| 1915 | - $pdf_response = [ | |
| 1916 | - 'success' => true, | |
| 1917 | - 'message' => $success_text, | |
| 1918 | - 'data' => [ | |
| 1919 | - 'filename' => $pdf_filename | |
| 1920 | - ] | |
| 1921 | - ]; | |
| 1922 | - | |
| 1923 | - if ($testing_data !== null) { | |
| 1924 | - $pdf_response['testing_data'] = $testing_data; | |
| 1925 | - } | |
| 1926 | - | |
| 1927 | - wp_send_json($pdf_response); | |
| 1928 | - wp_die(); | |
| 1929 | - } else { | |
| 1930 | - $error_text = $current_options['pdf_intent_error_text'] ?? | |
| 1931 | - esc_html__("Sorry, I couldn't process the PDF. Please ensure it's a valid file.", 'mxchat'); | |
| 1932 | - $this->fallbackResponse['text'] = $error_text; | |
| 1933 | - } | |
| 1934 | - | |
| 1935 | - $pdf_error_response = [ | |
| 1936 | - 'success' => false, | |
| 1937 | - 'message' => $this->fallbackResponse['text'] | |
| 1938 | - ]; | |
| 1939 | - | |
| 1940 | - if ($testing_data !== null) { | |
| 1941 | - $pdf_error_response['testing_data'] = $testing_data; | |
| 1942 | - } | |
| 1943 | - | |
| 1944 | - wp_send_json($pdf_error_response); | |
| 1945 | - wp_die(); | |
| 1946 | - } | |
| 1947 | - } | |
| 1948 | - } | |
| 1949 | - | |
| 1950 | - | |
| 1951 | - // Step 2: Detect intent and handle intent-based responses | |
| 1952 | - $intent_result = $this->mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id); | |
| 1953 | - | |
| 1954 | - // Capture action analysis for testing panel after intent check | |
| 1955 | - if ($testing_data !== null && isset($this->last_action_analysis) && !empty($this->last_action_analysis)) { | |
| 1956 | - $testing_data['action_matches'] = $this->last_action_analysis; | |
| 1957 | - } | |
| 1958 | - | |
| 1959 | - // Step 3: Handle the intent result appropriately | |
| 1960 | - if ($intent_result !== false) { | |
| 1961 | - // Intent was matched - ALWAYS send as JSON response, never streaming | |
| 1962 | - | |
| 1963 | - if (is_array($intent_result) && (isset($intent_result['text']) || isset($intent_result['html']))) { | |
| 1964 | - // Intent returned a direct response array | |
| 1965 | - $response_data = [ | |
| 1966 | - 'text' => $intent_result['text'] ?? '', | |
| 1967 | - 'html' => $intent_result['html'] ?? '', | |
| 1968 | - 'session_id' => $session_id | |
| 1969 | - ]; | |
| 1970 | - | |
| 1971 | - // IMPORTANT: Include chat_mode if present (for WhatsApp, Slack, etc.) | |
| 1972 | - if (isset($intent_result['chat_mode'])) { | |
| 1973 | - $response_data['chat_mode'] = $intent_result['chat_mode']; | |
| 1974 | - } | |
| 1975 | - | |
| 1976 | - if ($testing_data !== null) { | |
| 1977 | - $response_data['testing_data'] = $testing_data; | |
| 1978 | - } | |
| 1979 | - | |
| 1980 | - wp_send_json($response_data); | |
| 1981 | - wp_die(); | |
| 1982 | - } else if ($intent_result === true && (!empty($this->fallbackResponse['text']) || !empty($this->fallbackResponse['html']))) { | |
| 1983 | - // Intent returned true and set fallbackResponse | |
| 1984 | - | |
| 1985 | - // SAVE TO TRANSCRIPT | |
| 1986 | - if (!empty($this->fallbackResponse['text'])) { | |
| 1987 | - $this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['text']); | |
| 1988 | - } | |
| 1989 | - // Save action HTML (product cards, featured products, etc.) so it renders in transcripts | |
| 1990 | - if (!empty($this->fallbackResponse['html'])) { | |
| 1991 | - $this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['html']); | |
| 1992 | - } | |
| 1993 | - | |
| 1994 | - $response_data = [ | |
| 1995 | - 'text' => $this->fallbackResponse['text'] ?? '', | |
| 1996 | - 'html' => $this->fallbackResponse['html'] ?? '', | |
| 1997 | - 'session_id' => $session_id | |
| 1998 | - ]; | |
| 1999 | - | |
| 2000 | - if (isset($this->fallbackResponse['chat_mode'])) { | |
| 2001 | - $response_data['chat_mode'] = $this->fallbackResponse['chat_mode']; | |
| 2002 | - } | |
| 2003 | - | |
| 2004 | - if ($testing_data !== null) { | |
| 2005 | - $response_data['testing_data'] = $testing_data; | |
| 2006 | - } | |
| 2007 | - | |
| 2008 | - wp_send_json($response_data); | |
| 2009 | - wp_die(); | |
| 2010 | - } | |
| 2011 | - } | |
| 2012 | - | |
| 2013 | - // If we get here, no intent matched OR the intent didn't provide a usable response | |
| 2014 | - | |
| 2015 | - // Step 4: Generate AI response | |
| 2016 | - // Get session start timestamp - when persistence is OFF, only include messages from this page load | |
| 2017 | - $session_start_timestamp = isset($_POST['session_start_timestamp']) ? intval($_POST['session_start_timestamp']) : 0; | |
| 2018 | - $conversation_history = $this->mxchat_fetch_conversation_history_for_ai($session_id, $session_start_timestamp); | |
| 2019 | - $this->mxchat_increment_chat_count(); | |
| 2020 | - | |
| 2021 | - // Generate embedding for the user's query - USE BOT-SPECIFIC API KEY | |
| 2022 | - $api_key = $current_options['api_key'] ?? $this->options['api_key']; | |
| 2023 | - $user_message_embedding = $this->mxchat_generate_embedding($message, $api_key); | |
| 2024 | - | |
| 2025 | - // Check if the embedding generation returned an error | |
| 2026 | - if (is_array($user_message_embedding) && isset($user_message_embedding['error'])) { | |
| 2027 | - $error_message = $user_message_embedding['error']; | |
| 2028 | - $error_code = $user_message_embedding['error_code'] ?? 'embedding_error'; | |
| 2029 | - | |
| 2030 | - // FIXED: Send error in appropriate format based on streaming mode | |
| 2031 | - if ($is_streaming) { | |
| 2032 | - echo "data: " . json_encode([ | |
| 2033 | - 'error' => true, | |
| 2034 | - 'error_message' => $error_message, | |
| 2035 | - 'error_code' => $error_code, | |
| 2036 | - 'text' => $error_message, | |
| 2037 | - 'message' => $error_message | |
| 2038 | - ]) . "\n\n"; | |
| 2039 | - echo "data: [DONE]\n\n"; | |
| 2040 | - flush(); | |
| 2041 | - } else { | |
| 2042 | - wp_send_json_error([ | |
| 2043 | - 'error_message' => $error_message, | |
| 2044 | - 'error_code' => $error_code | |
| 2045 | - ]); | |
| 2046 | - } | |
| 2047 | - wp_die(); | |
| 2048 | - } | |
| 2049 | - | |
| 2050 | - // Check if the embedding is valid | |
| 2051 | - if (!is_array($user_message_embedding) || empty($user_message_embedding)) { | |
| 2052 | - $error_message = esc_html__('Unable to process your message. The embedding service is not responding correctly.', 'mxchat'); | |
| 2053 | - | |
| 2054 | - // FIXED: Send error in appropriate format based on streaming mode | |
| 2055 | - if ($is_streaming) { | |
| 2056 | - echo "data: " . json_encode([ | |
| 2057 | - 'error' => true, | |
| 2058 | - 'error_message' => $error_message, | |
| 2059 | - 'error_code' => 'invalid_embedding', | |
| 2060 | - 'text' => $error_message, | |
| 2061 | - 'message' => $error_message | |
| 2062 | - ]) . "\n\n"; | |
| 2063 | - echo "data: [DONE]\n\n"; | |
| 2064 | - flush(); | |
| 2065 | - } else { | |
| 2066 | - wp_send_json_error([ | |
| 2067 | - 'error_message' => $error_message, | |
| 2068 | - 'error_code' => 'invalid_embedding' | |
| 2069 | - ]); | |
| 2070 | - } | |
| 2071 | - wp_die(); | |
| 2072 | - } | |
| 2073 | - | |
| 2074 | - // Build context with both knowledge base and PDF content if available | |
| 2075 | - $context_content = "User asked: '{$message}'\n\n"; | |
| 2076 | - | |
| 2077 | - // Add action instruction if present (add this right after the above line) | |
| 2078 | - if (!empty($this->current_action_instruction)) { | |
| 2079 | - $context_content .= "===== SPECIAL INSTRUCTION =====\n"; | |
| 2080 | - $context_content .= "IMPORTANT: " . $this->current_action_instruction . "\n"; | |
| 2081 | - $context_content .= "Respond naturally and conversationally while following this instruction.\n"; | |
| 2082 | - $context_content .= "===== END SPECIAL INSTRUCTION =====\n\n"; | |
| 2083 | - | |
| 2084 | - // Clear the instruction after using it | |
| 2085 | - $this->current_action_instruction = null; | |
| 2086 | - } | |
| 2087 | - | |
| 2088 | - | |
| 2089 | - // Add page context if available and contextual awareness is enabled using current_options | |
| 2090 | - if ($page_context && isset($current_options['contextual_awareness_toggle']) && $current_options['contextual_awareness_toggle'] === 'on') { | |
| 2091 | - $context_content .= "===== CURRENT PAGE CONTEXT =====\n"; | |
| 2092 | - $context_content .= "Page URL: " . $page_context['url'] . "\n"; | |
| 2093 | - $context_content .= "Page Title: " . $page_context['title'] . "\n"; | |
| 2094 | - $context_content .= "Page Content: " . $page_context['content'] . "\n"; | |
| 2095 | - $context_content .= "===== END CURRENT PAGE CONTEXT =====\n\n"; | |
| 2096 | - } | |
| 2097 | - | |
| 2098 | - // Get relevant content from knowledge base - PASS BOT_ID and MESSAGE for Vector Store | |
| 2099 | - $relevant_content = $this->mxchat_find_relevant_content($user_message_embedding, $bot_id, $message); | |
| 2100 | - | |
| 2101 | - // NEW: Also extract URLs from system instructions (only if citation links enabled) | |
| 2102 | - // Use fresh options to ensure we get the latest setting value | |
| 2103 | - $fresh_options = get_option('mxchat_options', []); | |
| 2104 | - $citation_links_enabled = isset($fresh_options['citation_links_toggle']) ? ($fresh_options['citation_links_toggle'] === 'on') : true; | |
| 2105 | - | |
| 2106 | - $system_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 2107 | - if ($citation_links_enabled && !empty($system_instructions)) { | |
| 2108 | - preg_match_all( | |
| 2109 | - '#\bhttps?://[^\s<>"\']+#i', | |
| 2110 | - $system_instructions, | |
| 2111 | - $system_instruction_urls | |
| 2112 | - ); | |
| 2113 | - | |
| 2114 | - if (!empty($system_instruction_urls[0])) { | |
| 2115 | - // Merge with existing valid URLs | |
| 2116 | - $this->current_valid_urls = array_merge( | |
| 2117 | - $this->current_valid_urls, | |
| 2118 | - $system_instruction_urls[0] | |
| 2119 | - ); | |
| 2120 | - // Remove duplicates | |
| 2121 | - $this->current_valid_urls = array_unique($this->current_valid_urls); | |
| 2122 | - | |
| 2123 | - //error_log("Added " . count($system_instruction_urls[0]) . " URLs from system instructions"); | |
| 2124 | - } | |
| 2125 | - } | |
| 2126 | - | |
| 2127 | -// ===== CAPTURE REAL SIMILARITY DATA FOR ADMINS ===== | |
| 2128 | -if ($testing_data !== null && $this->last_similarity_analysis !== null) { | |
| 2129 | - // Update testing data with the REAL similarity analysis | |
| 2130 | - $testing_data['top_matches'] = $this->last_similarity_analysis['top_matches']; | |
| 2131 | - $testing_data['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0; | |
| 2132 | - $testing_data['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type']; | |
| 2133 | - $testing_data['sources_used'] = $this->last_similarity_analysis['sources_used'] ?? 0; | |
| 2134 | - $testing_data['total_chunks_used'] = $this->last_similarity_analysis['total_chunks_used'] ?? 0; | |
| 2135 | -} | |
| 2136 | -// ===== END SIMILARITY DATA CAPTURE ===== | |
| 2137 | - | |
| 2138 | -// NEW: Add valid URLs to testing data for admin panel display (AFTER similarity data) | |
| 2139 | -if ($testing_data !== null && !empty($this->current_valid_urls)) { | |
| 2140 | - $testing_data['approved_urls'] = array_values($this->current_valid_urls); | |
| 2141 | - //error_log("Added " . count($this->current_valid_urls) . " approved URLs to testing data"); | |
| 2142 | -} | |
| 2143 | - | |
| 2144 | - if (!empty($relevant_content)) { | |
| 2145 | - $context_content .= "===== OFFICIAL KNOWLEDGE DATABASE CONTENT =====\n" . $relevant_content . "\n===== END OF OFFICIAL KNOWLEDGE DATABASE CONTENT =====\n\n"; | |
| 2146 | - } else { | |
| 2147 | - $context_content .= "===== NO RELEVANT CONTENT FOUND IN KNOWLEDGE DATABASE =====\n"; | |
| 2148 | - } | |
| 2149 | - | |
| 2150 | - // NEW: Add approved URLs list to context for AI (only if citation links enabled) | |
| 2151 | - if ($citation_links_enabled && !empty($this->current_valid_urls)) { | |
| 2152 | - $context_content .= "===== APPROVED URLS FOR CITATIONS =====\n"; | |
| 2153 | - $context_content .= "You may ONLY use these exact URLs in your response:\n"; | |
| 2154 | - foreach ($this->current_valid_urls as $url) { | |
| 2155 | - $context_content .= "- " . $url . "\n"; | |
| 2156 | - } | |
| 2157 | - $context_content .= "\nCRITICAL: Do NOT create, modify, extend, or invent any other URLs. "; | |
| 2158 | - $context_content .= "===== END APPROVED URLS =====\n\n"; | |
| 2159 | - } | |
| 2160 | - | |
| 2161 | - // Check for and include PDF content | |
| 2162 | - $pdf_url = get_transient('mxchat_pdf_url_' . $session_id); | |
| 2163 | - $pdf_embeddings = get_transient('mxchat_pdf_embeddings_' . $session_id); | |
| 2164 | - $pdf_filename = get_transient('mxchat_pdf_filename_' . $session_id); | |
| 2165 | - if ($pdf_url && $pdf_embeddings && get_transient('mxchat_include_pdf_in_context_' . $session_id)) { | |
| 2166 | - $relevant_pdf_pages = $this->find_relevant_pdf_pages($user_message_embedding, $pdf_embeddings); | |
| 2167 | - if (!empty($relevant_pdf_pages)) { | |
| 2168 | - $context_content .= "Relevant content from PDF document '{$pdf_filename}':\n"; | |
| 2169 | - foreach ($relevant_pdf_pages as $page_data) { | |
| 2170 | - $context_content .= "Page {$page_data['page_number']} of '{$pdf_filename}': {$page_data['text']}\n"; | |
| 2171 | - } | |
| 2172 | - $context_content .= "\n"; | |
| 2173 | - } | |
| 2174 | - } | |
| 2175 | - | |
| 2176 | - // Check for and include Word content | |
| 2177 | - $word_url = get_transient('mxchat_word_url_' . $session_id); | |
| 2178 | - $word_embeddings = get_transient('mxchat_word_embeddings_' . $session_id); | |
| 2179 | - $word_filename = get_transient('mxchat_word_filename_' . $session_id); | |
| 2180 | - if ($word_url && $word_embeddings && get_transient('mxchat_include_word_in_context_' . $session_id)) { | |
| 2181 | - $relevant_word_chunks = $this->word_handler->mxchat_find_relevant_word_chunks($user_message_embedding, $word_embeddings); | |
| 2182 | - if (!empty($relevant_word_chunks)) { | |
| 2183 | - $context_content .= "Relevant content from Word document '{$word_filename}':\n"; | |
| 2184 | - foreach ($relevant_word_chunks as $chunk_data) { | |
| 2185 | - $context_content .= "Section {$chunk_data['chunk_number']} of '{$word_filename}': {$chunk_data['text']}\n"; | |
| 2186 | - } | |
| 2187 | - $context_content .= "\n"; | |
| 2188 | - } | |
| 2189 | - } | |
| 2190 | - | |
| 2191 | - $context_content = apply_filters('mxchat_prepare_context', $context_content, $session_id); | |
| 2192 | - | |
| 2193 | - // Extract model from current options for bot-specific model support | |
| 2194 | - $selected_model = isset($current_options['model']) ? $current_options['model'] : 'gpt-5.1-chat-latest'; | |
| 2195 | - | |
| 2196 | - // ===== Native function-calling fallback (plan-mxchat-20260617-a41dee) ===== | |
| 2197 | - // Intents already missed (we're past the intent router). If function | |
| 2198 | - // calling is enabled and the active model is tool-capable, let the model | |
| 2199 | - // SELECT and run registered callbacks as tools — independent of intents, | |
| 2200 | - // works with zero Actions. The tool round is buffered; the final answer is | |
| 2201 | - // emitted via the SAME envelopes the normal path uses. Default-off, so | |
| 2202 | - // existing installs never enter this branch. | |
| 2203 | - if ($this->mxchat_fc_should_run($selected_model)) { | |
| 2204 | - $fc_outcome = $this->mxchat_fc_attempt( | |
| 2205 | - $message, | |
| 2206 | - $context_content, | |
| 2207 | - $conversation_history, | |
| 2208 | - $selected_model, | |
| 2209 | - $current_options, | |
| 2210 | - $session_id, | |
| 2211 | - $user_id | |
| 2212 | - ); | |
| 2213 | - if (is_array($fc_outcome) && !empty($fc_outcome['handled'])) { | |
| 2214 | - $fc_text = isset($fc_outcome['text']) ? $fc_outcome['text'] : ''; | |
| 2215 | - if (!empty($this->current_valid_urls)) { | |
| 2216 | - $fc_text = $this->validate_and_clean_urls($fc_text, $this->current_valid_urls); | |
| 2217 | - } | |
| 2218 | - // plan-mxchat-20260617-48a57a — surface any UI element a tool | |
| 2219 | - // produced (generated image / product card / image gallery) so the | |
| 2220 | - // widget RENDERS it, instead of emitting only the model's text. | |
| 2221 | - // The html was already saved to the transcript in | |
| 2222 | - // mxchat_fc_execute_tool (or by the callback itself for self-saving | |
| 2223 | - // core tools), so we persist ONLY the model's caption text here. | |
| 2224 | - $fc_html = isset($this->fc_ui_html) ? $this->fc_ui_html : ''; | |
| 2225 | - | |
| 2226 | - if ($fc_text !== '') { | |
| 2227 | - $this->mxchat_save_chat_message($session_id, 'bot', $fc_text, null, null); | |
| 2228 | - } | |
| 2229 | - | |
| 2230 | - if ($is_streaming) { | |
| 2231 | - // The frontend SSE reader routes any event carrying text/html | |
| 2232 | - // to handleNonStreamResponse(), which renders text + html in a | |
| 2233 | - // single bot message — so emit one complete event (mirrors the | |
| 2234 | - // intent path's text/html envelope). | |
| 2235 | - $sse = array('session_id' => $session_id); | |
| 2236 | - if ($fc_text !== '') $sse['text'] = $fc_text; | |
| 2237 | - if ($fc_html !== '') $sse['html'] = $fc_html; | |
| 2238 | - if ($fc_text === '' && $fc_html === '') $sse['text'] = $this->mxchat_fc_giveup_text(); | |
| 2239 | - echo "data: " . wp_json_encode($sse) . "\n\n"; | |
| 2240 | - echo "data: [DONE]\n\n"; | |
| 2241 | - flush(); | |
| 2242 | - } else { | |
| 2243 | - $fc_response_data = array('text' => $fc_text, 'html' => $fc_html, 'session_id' => $session_id); | |
| 2244 | - if ($testing_data !== null) { | |
| 2245 | - $fc_response_data['testing_data'] = $testing_data; | |
| 2246 | - } | |
| 2247 | - wp_send_json($fc_response_data); | |
| 2248 | - } | |
| 2249 | - wp_die(); | |
| 2250 | - } | |
| 2251 | - } | |
| 2252 | - // ===== end function-calling fallback ===== | |
| 2253 | - | |
| 2254 | - $response = $this->mxchat_generate_response( | |
| 2255 | - $context_content, | |
| 2256 | - $current_options['api_key'] ?? $this->options['api_key'], | |
| 2257 | - $current_options['xai_api_key'] ?? $this->options['xai_api_key'], | |
| 2258 | - $current_options['claude_api_key'] ?? $this->options['claude_api_key'], | |
| 2259 | - $current_options['deepseek_api_key'] ?? $this->options['deepseek_api_key'], | |
| 2260 | - $current_options['gemini_api_key'] ?? $this->options['gemini_api_key'], | |
| 2261 | - $current_options['openrouter_api_key'] ?? $this->options['openrouter_api_key'], | |
| 2262 | - $conversation_history, | |
| 2263 | - $is_streaming, | |
| 2264 | - $session_id, | |
| 2265 | - $testing_data, | |
| 2266 | - $selected_model | |
| 2267 | - ); | |
| 2268 | - | |
| 2269 | - // Handle streaming vs non-streaming responses | |
| 2270 | - if ($is_streaming) { | |
| 2271 | - // Check if streaming actually happened or if it fell back to regular response | |
| 2272 | - if ($response === true) { | |
| 2273 | - wp_die(); | |
| 2274 | - } | |
| 2275 | - // If we get here, streaming fell back to regular response, continue | |
| 2276 | - // But if there's an error, we need to send it as SSE format since headers are already set | |
| 2277 | - if (is_array($response) && isset($response['error'])) { | |
| 2278 | - $error_message = $response['error']; | |
| 2279 | - $error_code = $response['error_code'] ?? 'api_error'; | |
| 2280 | - // Send error in SSE format that the client JS can handle | |
| 2281 | - echo "data: " . json_encode([ | |
| 2282 | - 'error' => true, | |
| 2283 | - 'error_message' => $error_message, | |
| 2284 | - 'error_code' => $error_code, | |
| 2285 | - 'text' => $error_message, // Also include as text for fallback handling | |
| 2286 | - 'message' => $error_message | |
| 2287 | - ]) . "\n\n"; | |
| 2288 | - echo "data: [DONE]\n\n"; | |
| 2289 | - flush(); | |
| 2290 | - wp_die(); | |
| 2291 | - } | |
| 2292 | - } | |
| 2293 | - | |
| 2294 | - // Check if the response is an error array (non-streaming mode) | |
| 2295 | - if (is_array($response) && isset($response['error'])) { | |
| 2296 | - wp_send_json_error([ | |
| 2297 | - 'error_message' => $response['error'], | |
| 2298 | - 'error_code' => $response['error_code'] ?? 'api_error' | |
| 2299 | - ]); | |
| 2300 | - wp_die(); | |
| 2301 | - } | |
| 2302 | - | |
| 2303 | - // DEBUG: Check what we have | |
| 2304 | - //error_log("=== BEFORE URL VALIDATION ==="); | |
| 2305 | - //error_log("current_valid_urls is empty? " . (empty($this->current_valid_urls) ? 'YES' : 'NO')); | |
| 2306 | - //error_log("current_valid_urls count: " . count($this->current_valid_urls)); | |
| 2307 | - //error_log("current_valid_urls content: " . print_r($this->current_valid_urls, true)); | |
| 2308 | - | |
| 2309 | - // If we get here, the response is valid text - now validate URLs | |
| 2310 | - if (!empty($this->current_valid_urls)) { | |
| 2311 | - //error_log("CALLING validate_and_clean_urls"); | |
| 2312 | - $response = $this->validate_and_clean_urls($response, $this->current_valid_urls); | |
| 2313 | - } else { | |
| 2314 | - //error_log("SKIPPING validation - current_valid_urls is empty"); | |
| 2315 | - } | |
| 2316 | - // ===== END URL VALIDATION ===== | |
| 2317 | - | |
| 2318 | - // Prepare RAG context data for storage (only include documents used for context) | |
| 2319 | - $rag_context_for_storage = null; | |
| 2320 | - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']); | |
| 2321 | - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis); | |
| 2322 | - | |
| 2323 | - if ($has_rag_data || $has_action_data) { | |
| 2324 | - $rag_context_for_storage = []; | |
| 2325 | - | |
| 2326 | - // Add RAG/source data if available | |
| 2327 | - if ($has_rag_data) { | |
| 2328 | - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches']; | |
| 2329 | - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? []; | |
| 2330 | - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35; | |
| 2331 | - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database'; | |
| 2332 | - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0; | |
| 2333 | - $rag_context_for_storage['sources_used'] = $this->last_similarity_analysis['sources_used'] ?? 0; | |
| 2334 | - $rag_context_for_storage['total_chunks_used'] = $this->last_similarity_analysis['total_chunks_used'] ?? 0; | |
| 2335 | - } | |
| 2336 | - | |
| 2337 | - // Add action analysis data if available | |
| 2338 | - if ($has_action_data) { | |
| 2339 | - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis; | |
| 2340 | - } | |
| 2341 | - } | |
| 2342 | - | |
| 2343 | - // Save the cleaned response with RAG context | |
| 2344 | - $this->mxchat_save_chat_message($session_id, 'bot', $response, null, $rag_context_for_storage); | |
| 2345 | - | |
| 2346 | - // Step 5: Save additional content if available | |
| 2347 | - if (!empty($this->productCardHtml)) { | |
| 2348 | - $this->mxchat_save_chat_message($session_id, 'bot', $this->productCardHtml); | |
| 2349 | - } | |
| 2350 | - | |
| 2351 | - if (!empty($this->fallbackResponse['html'])) { | |
| 2352 | - $this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['html']); | |
| 2353 | - } | |
| 2354 | - | |
| 2355 | - // Step 6: Return the response | |
| 2356 | - // DEBUG: Check if newlines exist in the response | |
| 2357 | - //error_log("=== MXCHAT NON-STREAMING RESPONSE DEBUG ==="); | |
| 2358 | - //error_log("Response has newlines: " . (strpos($response, "\n") !== false ? 'YES' : 'NO')); | |
| 2359 | - //error_log("Response first 500 chars: " . substr($response, 0, 500)); | |
| 2360 | - | |
| 2361 | - $response_data = [ | |
| 2362 | - 'text' => $response, | |
| 2363 | - 'html' => !empty($this->productCardHtml) ? $this->productCardHtml : ($this->fallbackResponse['html'] ?? ''), | |
| 2364 | - 'session_id' => $session_id | |
| 2365 | - ]; | |
| 2366 | - | |
| 2367 | - // Include vectorstore error info for admin debugging (only visible to admins via testing_data) | |
| 2368 | - if (!empty($this->last_vectorstore_error) && $testing_data !== null) { | |
| 2369 | - $testing_data['vectorstore_error'] = $this->last_vectorstore_error; | |
| 2370 | - } | |
| 2371 | - | |
| 2372 | - // Also pass it as a top-level field so JS can show a better error message to admins | |
| 2373 | - if (!empty($this->last_vectorstore_error) && current_user_can('manage_options')) { | |
| 2374 | - $response_data['vectorstore_error'] = $this->last_vectorstore_error; | |
| 2375 | - } | |
| 2376 | - | |
| 2377 | - // Always add testing data for admins (no toggle needed) | |
| 2378 | - if ($testing_data !== null) { | |
| 2379 | - $response_data['testing_data'] = $testing_data; | |
| 2380 | - } | |
| 2381 | - | |
| 2382 | - wp_send_json($response_data); | |
| 2383 | - wp_die(); | |
| 2384 | -} | |
| 2385 | - | |
| 2386 | -/** | |
| 2387 | - * Get bot-specific options for multi-bot functionality | |
| 2388 | - * Falls back to default options if bot_id is 'default' or multi-bot add-on is not active | |
| 2389 | - */ | |
| 2390 | -// Also debug the bot options retrieval | |
| 2391 | -private function get_bot_options($bot_id = 'default') { | |
| 2392 | - //error_log("MXCHAT DEBUG: get_bot_options called for bot: " . $bot_id); | |
| 2393 | - | |
| 2394 | - if ($bot_id === 'default' || !class_exists('MxChat_Multi_Bot_Manager')) { | |
| 2395 | - //error_log("MXCHAT DEBUG: Using default options (no multi-bot or bot is 'default')"); | |
| 2396 | - return array(); | |
| 2397 | - } | |
| 2398 | - | |
| 2399 | - $bot_options = apply_filters('mxchat_get_bot_options', array(), $bot_id); | |
| 2400 | - | |
| 2401 | - if (!empty($bot_options)) { | |
| 2402 | - //error_log("MXCHAT DEBUG: Got bot-specific options from filter"); | |
| 2403 | - if (isset($bot_options['similarity_threshold'])) { | |
| 2404 | - //error_log(" - similarity_threshold: " . $bot_options['similarity_threshold']); | |
| 2405 | - } | |
| 2406 | - } | |
| 2407 | - | |
| 2408 | - return is_array($bot_options) ? $bot_options : array(); | |
| 2409 | -} | |
| 2410 | - | |
| 2411 | -/** | |
| 2412 | - * Get bot-specific Pinecone configuration | |
| 2413 | - * Used in the knowledge retrieval functions | |
| 2414 | - */ | |
| 2415 | -// Also add debugging to your get_bot_pinecone_config function | |
| 2416 | -private function get_bot_pinecone_config($bot_id = 'default') { | |
| 2417 | - //error_log("MXCHAT DEBUG: get_bot_pinecone_config called for bot: " . $bot_id); | |
| 2418 | - | |
| 2419 | - // If default bot or multi-bot add-on not active, use default Pinecone config | |
| 2420 | - if ($bot_id === 'default' || !class_exists('MxChat_Multi_Bot_Manager')) { | |
| 2421 | - //error_log("MXCHAT DEBUG: Using default Pinecone config (no multi-bot or bot is 'default')"); | |
| 2422 | - $addon_options = get_option('mxchat_pinecone_addon_options', array()); | |
| 2423 | - $config = array( | |
| 2424 | - 'use_pinecone' => (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1'), | |
| 2425 | - 'api_key' => $addon_options['mxchat_pinecone_api_key'] ?? '', | |
| 2426 | - 'host' => $addon_options['mxchat_pinecone_host'] ?? '', | |
| 2427 | - 'namespace' => $addon_options['mxchat_pinecone_namespace'] ?? '' | |
| 2428 | - ); | |
| 2429 | - //error_log("MXCHAT DEBUG: Default config - use_pinecone: " . ($config['use_pinecone'] ? 'true' : 'false')); | |
| 2430 | - return $config; | |
| 2431 | - } | |
| 2432 | - | |
| 2433 | - //error_log("MXCHAT DEBUG: Calling filter 'mxchat_get_bot_pinecone_config' for bot: " . $bot_id); | |
| 2434 | - | |
| 2435 | - // Hook for multi-bot add-on to provide bot-specific Pinecone config | |
| 2436 | - $bot_pinecone_config = apply_filters('mxchat_get_bot_pinecone_config', array(), $bot_id); | |
| 2437 | - | |
| 2438 | - if (!empty($bot_pinecone_config)) { | |
| 2439 | - //error_log("MXCHAT DEBUG: Got bot-specific config from filter"); | |
| 2440 | - //error_log(" - use_pinecone: " . (isset($bot_pinecone_config['use_pinecone']) ? ($bot_pinecone_config['use_pinecone'] ? 'true' : 'false') : 'not set')); | |
| 2441 | - //error_log(" - host: " . ($bot_pinecone_config['host'] ?? 'not set')); | |
| 2442 | - //error_log(" - namespace: " . ($bot_pinecone_config['namespace'] ?? 'not set')); | |
| 2443 | - } else { | |
| 2444 | - //error_log("MXCHAT DEBUG: Filter returned empty config!"); | |
| 2445 | - } | |
| 2446 | - | |
| 2447 | - return is_array($bot_pinecone_config) ? $bot_pinecone_config : array(); | |
| 2448 | -} | |
| 2449 | - | |
| 2450 | - | |
| 2451 | -// Updated function to check intents and invoke the callback function | |
| 2452 | -private function mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id) { | |
| 2453 | - global $wpdb; | |
| 2454 | - $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai'); | |
| 2455 | - | |
| 2456 | - // Get the current bot_id | |
| 2457 | - $current_bot_id = $this->get_current_bot_id($session_id); | |
| 2458 | - | |
| 2459 | - // Generate the user embedding | |
| 2460 | - $user_embedding = $this->mxchat_generate_embedding($message, $this->options['api_key']); | |
| 2461 | - | |
| 2462 | - // Check if embedding generation returned an error | |
| 2463 | - if (is_array($user_embedding) && isset($user_embedding['error'])) { | |
| 2464 | - $error_message = $user_embedding['error']; | |
| 2465 | - $error_code = $user_embedding['error_code'] ?? 'embedding_error'; | |
| 2466 | - | |
| 2467 | - // FIXED: Send error in appropriate format based on streaming mode | |
| 2468 | - if ($this->is_streaming) { | |
| 2469 | - echo "data: " . json_encode([ | |
| 2470 | - 'error' => true, | |
| 2471 | - 'error_message' => $error_message, | |
| 2472 | - 'error_code' => $error_code, | |
| 2473 | - 'text' => $error_message, | |
| 2474 | - 'message' => $error_message | |
| 2475 | - ]) . "\n\n"; | |
| 2476 | - echo "data: [DONE]\n\n"; | |
| 2477 | - flush(); | |
| 2478 | - } else { | |
| 2479 | - wp_send_json_error([ | |
| 2480 | - 'error_message' => $error_message, | |
| 2481 | - 'error_code' => $error_code | |
| 2482 | - ]); | |
| 2483 | - } | |
| 2484 | - wp_die(); | |
| 2485 | - } | |
| 2486 | - | |
| 2487 | - // Check if embedding is valid | |
| 2488 | - if (!is_array($user_embedding) || empty($user_embedding)) { | |
| 2489 | - $error_message = esc_html__('Unable to process your message. The embedding service is not responding correctly.', 'mxchat'); | |
| 2490 | - | |
| 2491 | - // FIXED: Send error in appropriate format based on streaming mode | |
| 2492 | - if ($this->is_streaming) { | |
| 2493 | - echo "data: " . json_encode([ | |
| 2494 | - 'error' => true, | |
| 2495 | - 'error_message' => $error_message, | |
| 2496 | - 'error_code' => 'invalid_embedding', | |
| 2497 | - 'text' => $error_message, | |
| 2498 | - 'message' => $error_message | |
| 2499 | - ]) . "\n\n"; | |
| 2500 | - echo "data: [DONE]\n\n"; | |
| 2501 | - flush(); | |
| 2502 | - } else { | |
| 2503 | - wp_send_json_error([ | |
| 2504 | - 'error_message' => $error_message, | |
| 2505 | - 'error_code' => 'invalid_embedding' | |
| 2506 | - ]); | |
| 2507 | - } | |
| 2508 | - wp_die(); | |
| 2509 | - } | |
| 2510 | - | |
| 2511 | - // Fetch intents from the database | |
| 2512 | - $table_name = $wpdb->prefix . 'mxchat_intents'; | |
| 2513 | - if ($chat_mode === 'agent') { | |
| 2514 | - $query = $wpdb->prepare( | |
| 2515 | - "SELECT * FROM $table_name WHERE callback_function = %s AND (enabled = 1 OR enabled IS NULL)", | |
| 2516 | - 'mxchat_handle_switch_to_chatbot_intent' | |
| 2517 | - ); | |
| 2518 | - $intents = $wpdb->get_results($query); | |
| 2519 | - } else { | |
| 2520 | - $intents = $wpdb->get_results("SELECT * FROM $table_name WHERE enabled = 1 OR enabled IS NULL"); | |
| 2521 | - } | |
| 2522 | - | |
| 2523 | - if (empty($intents)) { | |
| 2524 | - return false; | |
| 2525 | - } | |
| 2526 | - | |
| 2527 | - // Prefetch individual phrase vectors from wp_mxchat_intent_phrases (grouped by intent_id) | |
| 2528 | - $phrases_table = $wpdb->prefix . 'mxchat_intent_phrases'; | |
| 2529 | - $phrases_by_intent = []; | |
| 2530 | - if ($wpdb->get_var("SHOW TABLES LIKE '$phrases_table'") === $phrases_table) { | |
| 2531 | - $all_phrases = $wpdb->get_results("SELECT intent_id, phrase, embedding_vector FROM $phrases_table"); | |
| 2532 | - foreach ($all_phrases as $p) { | |
| 2533 | - $phrases_by_intent[$p->intent_id][] = $p; | |
| 2534 | - } | |
| 2535 | - } | |
| 2536 | - | |
| 2537 | - $highest_similarity = -INF; | |
| 2538 | - $matched_intent = null; | |
| 2539 | - | |
| 2540 | - // Array to store action analysis for testing panel | |
| 2541 | - $action_analysis = []; | |
| 2542 | - | |
| 2543 | - foreach ($intents as $intent) { | |
| 2544 | - // Additional check for enabled state | |
| 2545 | - $is_enabled = isset($intent->enabled) ? (bool)$intent->enabled : true; | |
| 2546 | - if (!$is_enabled) { | |
| 2547 | - continue; | |
| 2548 | - } | |
| 2549 | - | |
| 2550 | - // Check if this action is enabled for the current bot | |
| 2551 | - if (!$this->is_action_enabled_for_bot($intent, $current_bot_id)) { | |
| 2552 | - continue; | |
| 2553 | - } | |
| 2554 | - | |
| 2555 | - $best_similarity = -INF; | |
| 2556 | - $matched_phrase_text = ''; | |
| 2557 | - | |
| 2558 | - // Check legacy embedding vector (existing behavior) | |
| 2559 | - $intent_embedding_serialized = $intent->embedding_vector; | |
| 2560 | - $intent_embedding = $intent_embedding_serialized | |
| 2561 | - ? unserialize($intent_embedding_serialized, ['allowed_classes' => false]) | |
| 2562 | - : null; | |
| 2563 | - | |
| 2564 | - if (is_array($intent_embedding) && !empty($intent_embedding)) { | |
| 2565 | - $legacy_similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $intent_embedding); | |
| 2566 | - if ($legacy_similarity > $best_similarity) { | |
| 2567 | - $best_similarity = $legacy_similarity; | |
| 2568 | - $matched_phrase_text = 'legacy'; | |
| 2569 | - } | |
| 2570 | - } | |
| 2571 | - | |
| 2572 | - // Check individual phrase vectors | |
| 2573 | - if (isset($phrases_by_intent[$intent->id])) { | |
| 2574 | - foreach ($phrases_by_intent[$intent->id] as $phrase_row) { | |
| 2575 | - $phrase_embedding = $phrase_row->embedding_vector | |
| 2576 | - ? unserialize($phrase_row->embedding_vector, ['allowed_classes' => false]) | |
| 2577 | - : null; | |
| 2578 | - if (!is_array($phrase_embedding)) { | |
| 2579 | - continue; | |
| 2580 | - } | |
| 2581 | - $phrase_similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $phrase_embedding); | |
| 2582 | - if ($phrase_similarity > $best_similarity) { | |
| 2583 | - $best_similarity = $phrase_similarity; | |
| 2584 | - $matched_phrase_text = $phrase_row->phrase; | |
| 2585 | - } | |
| 2586 | - } | |
| 2587 | - } | |
| 2588 | - | |
| 2589 | - // Skip if no valid embedding was found at all | |
| 2590 | - if ($best_similarity === -INF) { | |
| 2591 | - continue; | |
| 2592 | - } | |
| 2593 | - | |
| 2594 | - $similarity = $best_similarity; | |
| 2595 | - $intent_threshold = isset($intent->similarity_threshold) ? $intent->similarity_threshold : 0.85; | |
| 2596 | - | |
| 2597 | - // Store action analysis data for testing panel | |
| 2598 | - $action_analysis[] = [ | |
| 2599 | - 'intent_label' => $intent->intent_label, | |
| 2600 | - 'callback_function' => $intent->callback_function, | |
| 2601 | - 'similarity' => round($similarity, 4), | |
| 2602 | - 'similarity_percentage' => round($similarity * 100, 2), | |
| 2603 | - 'threshold' => $intent_threshold, | |
| 2604 | - 'threshold_percentage' => round($intent_threshold * 100, 2), | |
| 2605 | - 'above_threshold' => $similarity >= $intent_threshold, | |
| 2606 | - 'matched_phrase' => $matched_phrase_text, | |
| 2607 | - 'triggered' => false // Will be updated below if this intent is triggered | |
| 2608 | - ]; | |
| 2609 | - | |
| 2610 | - if ($similarity >= $intent_threshold && $similarity > $highest_similarity) { | |
| 2611 | - $highest_similarity = $similarity; | |
| 2612 | - $matched_intent = $intent; | |
| 2613 | - } | |
| 2614 | - } | |
| 2615 | - | |
| 2616 | - // Mark the triggered action if any | |
| 2617 | - if ($matched_intent) { | |
| 2618 | - foreach ($action_analysis as &$action) { | |
| 2619 | - if ($action['intent_label'] === $matched_intent->intent_label) { | |
| 2620 | - $action['triggered'] = true; | |
| 2621 | - break; | |
| 2622 | - } | |
| 2623 | - } | |
| 2624 | - } | |
| 2625 | - | |
| 2626 | - // Sort actions by similarity (highest first) and store for testing panel | |
| 2627 | - usort($action_analysis, function($a, $b) { | |
| 2628 | - return $b['similarity'] <=> $a['similarity']; | |
| 2629 | - }); | |
| 2630 | - | |
| 2631 | - // Store action analysis for testing panel capture | |
| 2632 | - $this->last_action_analysis = $action_analysis; | |
| 2633 | - | |
| 2634 | - // Around line 715 in your mxchat_check_intent_and_invoke_callback function | |
| 2635 | - if ($matched_intent) { | |
| 2636 | - // If the callback is a method on this instance (core callback), call it directly | |
| 2637 | - if (method_exists($this, $matched_intent->callback_function)) { | |
| 2638 | - $callback_result = call_user_func( | |
| 2639 | - [$this, $matched_intent->callback_function], | |
| 2640 | - $message, | |
| 2641 | - $user_id, | |
| 2642 | - $session_id, | |
| 2643 | - $matched_intent, | |
| 2644 | - $user_context ?? null | |
| 2645 | - ); | |
| 2646 | - } else { | |
| 2647 | - // Otherwise, use apply_filters for add-on callbacks | |
| 2648 | - $callback_result = apply_filters( | |
| 2649 | - $matched_intent->callback_function, | |
| 2650 | - false, | |
| 2651 | - $message, | |
| 2652 | - $user_id, | |
| 2653 | - $session_id, | |
| 2654 | - $matched_intent | |
| 2655 | - ); | |
| 2656 | - } | |
| 2657 | - | |
| 2658 | - // Handle the callback result properly | |
| 2659 | - if ($callback_result !== false) { | |
| 2660 | - // If callback returned an array with chat_mode, use it directly | |
| 2661 | - if (is_array($callback_result) && isset($callback_result['chat_mode'])) { | |
| 2662 | - $this->fallbackResponse = $callback_result; | |
| 2663 | - return $callback_result; // Return the full array | |
| 2664 | - } else { | |
| 2665 | - $this->fallbackResponse = $callback_result; | |
| 2666 | - return true; | |
| 2667 | - } | |
| 2668 | - } | |
| 2669 | - } | |
| 2670 | - | |
| 2671 | - return false; | |
| 2672 | -} | |
| 2673 | - | |
| 2674 | -/** | |
| 2675 | - * Check if an action is enabled for a specific bot | |
| 2676 | - */ | |
| 2677 | -private function is_action_enabled_for_bot($intent, $bot_id) { | |
| 2678 | - // If enabled_bots column doesn't exist or is null, assume it's enabled for all bots (backward compatibility) | |
| 2679 | - if (!isset($intent->enabled_bots) || empty($intent->enabled_bots)) { | |
| 2680 | - return true; | |
| 2681 | - } | |
| 2682 | - | |
| 2683 | - $enabled_bots = json_decode($intent->enabled_bots, true); | |
| 2684 | - | |
| 2685 | - // If JSON decode fails or returns empty array, assume enabled for all (backward compatibility) | |
| 2686 | - if (!is_array($enabled_bots) || empty($enabled_bots)) { | |
| 2687 | - return true; | |
| 2688 | - } | |
| 2689 | - | |
| 2690 | - // Admin testing tab uses bot_id "testing" — treat it as "default" so all | |
| 2691 | - // default-bot actions are testable from the admin panel | |
| 2692 | - if ($bot_id === 'testing') { | |
| 2693 | - $bot_id = 'default'; | |
| 2694 | - } | |
| 2695 | - | |
| 2696 | - // Check if the current bot is in the enabled bots list | |
| 2697 | - return in_array($bot_id, $enabled_bots); | |
| 2698 | -} | |
| 2699 | - | |
| 2700 | -// Helper function to clear PDF and Word document related transients | |
| 2701 | -private function clear_pdf_transients($session_id) { | |
| 2702 | - // PDF transients | |
| 2703 | - delete_transient('mxchat_pdf_url_' . $session_id); | |
| 2704 | - delete_transient('mxchat_pdf_embeddings_' . $session_id); | |
| 2705 | - delete_transient('mxchat_include_pdf_in_context_' . $session_id); | |
| 2706 | - delete_transient('mxchat_waiting_for_pdf_url_' . $session_id); | |
| 2707 | - | |
| 2708 | - // Word document transients | |
| 2709 | - delete_transient('mxchat_word_url_' . $session_id); | |
| 2710 | - delete_transient('mxchat_word_filename_' . $session_id); | |
| 2711 | - delete_transient('mxchat_word_embeddings_' . $session_id); | |
| 2712 | - delete_transient('mxchat_include_word_in_context_' . $session_id); | |
| 2713 | - delete_transient('mxchat_waiting_for_word_' . $session_id); | |
| 2714 | -} | |
| 2715 | - | |
| 2716 | - | |
| 2717 | - | |
| 2718 | -//verified good | |
| 2719 | -public function mxchat_handle_email_capture($message, $user_id, $session_id) { | |
| 2720 | - // Get the user's original instruction/message | |
| 2721 | - $user_instruction = esc_html($this->options['triggered_phrase_response'] ?? esc_html__("Please provide your email address.", 'mxchat')); | |
| 2722 | - | |
| 2723 | - // Set instruction for AI - just pass along what the user wanted to say | |
| 2724 | - $this->current_action_instruction = $user_instruction; | |
| 2725 | - | |
| 2726 | - // Set the transient to track email capture flow | |
| 2727 | - set_transient('mxchat_email_capture_' . $user_id, true, 5 * MINUTE_IN_SECONDS); | |
| 2728 | - | |
| 2729 | - // Return false to let the AI generate the response | |
| 2730 | - return false; | |
| 2731 | -} | |
| 2732 | - | |
| 2733 | -public function mxchat_generate_image($message, $user_id, $session_id) { | |
| 2734 | - //error_log("Starting image generation for message: " . $message); | |
| 2735 | - | |
| 2736 | - // Prepare a prompt for OpenAI image generation | |
| 2737 | - $prompt = esc_html__('Create an image of ', 'mxchat') . sanitize_text_field($message); | |
| 2738 | - | |
| 2739 | - // Opt-in routing: when 'custom_provider_for_images' is on, route image gen | |
| 2740 | - // through the configured Custom (OpenAI-compatible) /images/generations route. | |
| 2741 | - if (!empty($this->options['custom_provider_for_images']) && $this->options['custom_provider_for_images'] === 'on') { | |
| 2742 | - $image_response = $this->mxchat_generate_custom_image($prompt); | |
| 2743 | - } else { | |
| 2744 | - // Use the existing OpenAI API key | |
| 2745 | - $openai_api_key = sanitize_text_field($this->options['api_key']); | |
| 2746 | - // Call OpenAI GPT Image to generate an image | |
| 2747 | - $image_response = $this->mxchat_generate_openai_image($prompt, $openai_api_key); | |
| 2748 | - } | |
| 2749 | - | |
| 2750 | - // Check if the response contains an image URL | |
| 2751 | - if (isset($image_response['imageUrl'])) { | |
| 2752 | - $image_url = esc_url_raw($image_response['imageUrl']); | |
| 2753 | - | |
| 2754 | - // Construct the HTML with a CSS class instead of inline styles | |
| 2755 | - $response_html = '<img src="' . esc_url($image_url) . '" alt="' . esc_attr__('Generated Image', 'mxchat') . '" class="mxchat-generated-image" />'; | |
| 2756 | - $response_text = esc_html__('Here is the image I generated:', 'mxchat'); | |
| 2757 | - | |
| 2758 | - // Save the bot message with both text and HTML | |
| 2759 | - $this->mxchat_save_chat_message($session_id, 'bot', $response_text); | |
| 2760 | - $this->mxchat_save_chat_message($session_id, 'bot', $response_html); | |
| 2761 | - | |
| 2762 | - // Set the fallback response for the chat handler | |
| 2763 | - $this->fallbackResponse = [ | |
| 2764 | - 'text' => $response_text, | |
| 2765 | - 'html' => $response_html, | |
| 2766 | - 'images' => [$image_url] | |
| 2767 | - ]; | |
| 2768 | - | |
| 2769 | - // For debugging/verification - Use json_encode to verify what's being set | |
| 2770 | - //error_log("Image generation successful - fallbackResponse set: " . json_encode($this->fallbackResponse)); | |
| 2771 | - | |
| 2772 | - // Return the response directly instead of relying on the property | |
| 2773 | - return $this->fallbackResponse; | |
| 2774 | - } else { | |
| 2775 | - $response_text = esc_html__("I'm sorry, but I couldn't generate an image based on your request.", 'mxchat'); | |
| 2776 | - | |
| 2777 | - // Save the error message | |
| 2778 | - $this->mxchat_save_chat_message($session_id, 'bot', $response_text); | |
| 2779 | - | |
| 2780 | - // Set the fallback response for the chat handler | |
| 2781 | - $this->fallbackResponse = [ | |
| 2782 | - 'text' => $response_text, | |
| 2783 | - 'html' => '', | |
| 2784 | - 'images' => [] | |
| 2785 | - ]; | |
| 2786 | - | |
| 2787 | - //error_log("DALL-E image generation error: " . esc_html($image_response['error'] ?? 'Unknown error.')); | |
| 2788 | - //error_log("Error fallbackResponse set: " . json_encode($this->fallbackResponse)); | |
| 2789 | - | |
| 2790 | - // Return the response directly instead of relying on the property | |
| 2791 | - return $this->fallbackResponse; | |
| 2792 | - } | |
| 2793 | -} | |
| 2794 | - | |
| 2795 | -public function mxchat_generate_gemini_image($message, $user_id, $session_id) { | |
| 2796 | - $prompt = esc_html__('Create an image of ', 'mxchat') . sanitize_text_field($message); | |
| 2797 | - | |
| 2798 | - $gemini_api_key = sanitize_text_field($this->options['gemini_api_key'] ?? ''); | |
| 2799 | - if (empty($gemini_api_key)) { | |
| 2800 | - $response_text = esc_html__("Gemini API key is not configured.", 'mxchat'); | |
| 2801 | - $this->mxchat_save_chat_message($session_id, 'bot', $response_text); | |
| 2802 | - return ['text' => $response_text, 'html' => '', 'images' => []]; | |
| 2803 | - } | |
| 2804 | - | |
| 2805 | - $image_response = $this->mxchat_generate_imagen_image($prompt, $gemini_api_key); | |
| 2806 | - | |
| 2807 | - if (isset($image_response['imageUrl'])) { | |
| 2808 | - $image_url = esc_url_raw($image_response['imageUrl']); | |
| 2809 | - | |
| 2810 | - $response_html = '<img src="' . esc_url($image_url) . '" alt="' . esc_attr__('Generated Image', 'mxchat') . '" class="mxchat-generated-image" />'; | |
| 2811 | - $response_text = esc_html__('Here is the image I generated:', 'mxchat'); | |
| 2812 | - | |
| 2813 | - $this->mxchat_save_chat_message($session_id, 'bot', $response_text); | |
| 2814 | - $this->mxchat_save_chat_message($session_id, 'bot', $response_html); | |
| 2815 | - | |
| 2816 | - $this->fallbackResponse = [ | |
| 2817 | - 'text' => $response_text, | |
| 2818 | - 'html' => $response_html, | |
| 2819 | - 'images' => [$image_url] | |
| 2820 | - ]; | |
| 2821 | - | |
| 2822 | - return $this->fallbackResponse; | |
| 2823 | - } else { | |
| 2824 | - $response_text = esc_html__("I'm sorry, but I couldn't generate an image based on your request.", 'mxchat'); | |
| 2825 | - | |
| 2826 | - $this->mxchat_save_chat_message($session_id, 'bot', $response_text); | |
| 2827 | - | |
| 2828 | - $this->fallbackResponse = [ | |
| 2829 | - 'text' => $response_text, | |
| 2830 | - 'html' => '', | |
| 2831 | - 'images' => [] | |
| 2832 | - ]; | |
| 2833 | - | |
| 2834 | - return $this->fallbackResponse; | |
| 2835 | - } | |
| 2836 | -} | |
| 2837 | - | |
| 2838 | -private function mxchat_save_generated_image($base64_data, $mime_type = 'image/png', $prefix = 'mxchat-generated') { | |
| 2839 | - // Map the real mime type to a matching file extension so the saved file's | |
| 2840 | - // extension always agrees with its bytes. A mismatch (e.g. Imagen returning | |
| 2841 | - // webp bytes that were written into a ".png" file) makes the browser refuse | |
| 2842 | - // to render the image even though the file saved successfully and the bot | |
| 2843 | - // reported success — that was the Gemini/Imagen "image never renders" bug. | |
| 2844 | - // OpenAI + custom-provider paths pass 'image/png' explicitly, so they are | |
| 2845 | - // unaffected; this only matters for providers that return another type. | |
| 2846 | - $mime_to_ext = [ | |
| 2847 | - 'image/jpeg' => 'jpg', | |
| 2848 | - 'image/jpg' => 'jpg', | |
| 2849 | - 'image/png' => 'png', | |
| 2850 | - 'image/webp' => 'webp', | |
| 2851 | - 'image/gif' => 'gif', | |
| 2852 | - ]; | |
| 2853 | - $mime_type = strtolower(trim((string) $mime_type)); | |
| 2854 | - if (isset($mime_to_ext[$mime_type])) { | |
| 2855 | - $extension = $mime_to_ext[$mime_type]; | |
| 2856 | - } else { | |
| 2857 | - // Unknown/unsupported type: fall back to png and normalize the stored | |
| 2858 | - // mime so the attachment record and the file extension stay consistent. | |
| 2859 | - $extension = 'png'; | |
| 2860 | - $mime_type = 'image/png'; | |
| 2861 | - } | |
| 2862 | - $filename = sanitize_file_name($prefix . '-' . wp_generate_uuid4() . '.' . $extension); | |
| 2863 | - $decoded = base64_decode($base64_data); | |
| 2864 | - | |
| 2865 | - if ($decoded === false) { | |
| 2866 | - return new \WP_Error('decode_failed', esc_html__('Failed to decode image data.', 'mxchat')); | |
| 2867 | - } | |
| 2868 | - | |
| 2869 | - $upload = wp_upload_bits($filename, null, $decoded); | |
| 2870 | - | |
| 2871 | - if (!empty($upload['error'])) { | |
| 2872 | - return new \WP_Error('upload_failed', $upload['error']); | |
| 2873 | - } | |
| 2874 | - | |
| 2875 | - $attach_id = wp_insert_attachment([ | |
| 2876 | - 'post_mime_type' => $mime_type, | |
| 2877 | - 'post_title' => $prefix, | |
| 2878 | - 'post_content' => '', | |
| 2879 | - 'post_status' => 'inherit', | |
| 2880 | - ], $upload['file']); | |
| 2881 | - | |
| 2882 | - if (is_wp_error($attach_id)) { | |
| 2883 | - return $attach_id; | |
| 2884 | - } | |
| 2885 | - | |
| 2886 | - require_once ABSPATH . 'wp-admin/includes/image.php'; | |
| 2887 | - $metadata = wp_generate_attachment_metadata($attach_id, $upload['file']); | |
| 2888 | - wp_update_attachment_metadata($attach_id, $metadata); | |
| 2889 | - | |
| 2890 | - return esc_url_raw(wp_get_attachment_url($attach_id)); | |
| 2891 | -} | |
| 2892 | - | |
| 2893 | -private function mxchat_generate_openai_image($prompt, $api_key, $model = 'gpt-image-1', $timeout = 60) { | |
| 2894 | - $api_url = 'https://api.openai.com/v1/images/generations'; | |
| 2895 | - $body = json_encode([ | |
| 2896 | - 'prompt' => sanitize_text_field($prompt), | |
| 2897 | - 'n' => 1, | |
| 2898 | - 'size' => '1024x1024', | |
| 2899 | - 'quality' => 'medium', | |
| 2900 | - 'output_format' => 'png', | |
| 2901 | - 'model' => sanitize_text_field($model), | |
| 2902 | - ]); | |
| 2903 | - | |
| 2904 | - $args = [ | |
| 2905 | - 'body' => $body, | |
| 2906 | - 'headers' => [ | |
| 2907 | - 'Content-Type' => 'application/json', | |
| 2908 | - 'Authorization' => 'Bearer ' . sanitize_text_field($api_key), | |
| 2909 | - ], | |
| 2910 | - 'method' => 'POST', | |
| 2911 | - 'timeout' => absint($timeout), | |
| 2912 | - ]; | |
| 2913 | - | |
| 2914 | - $response = wp_remote_post($api_url, $args); | |
| 2915 | - | |
| 2916 | - if (is_wp_error($response)) { | |
| 2917 | - return ['error' => esc_html__('Error generating image: ', 'mxchat') . $response->get_error_message()]; | |
| 2918 | - } | |
| 2919 | - | |
| 2920 | - $response_body = json_decode(wp_remote_retrieve_body($response), true); | |
| 2921 | - | |
| 2922 | - $b64 = $response_body['data'][0]['b64_json'] ?? $response_body['data'][0]['b64'] ?? null; | |
| 2923 | - if ($b64) { | |
| 2924 | - $saved_url = $this->mxchat_save_generated_image($b64, 'image/png', 'mxchat-openai'); | |
| 2925 | - if (is_wp_error($saved_url)) { | |
| 2926 | - return ['error' => $saved_url->get_error_message()]; | |
| 2927 | - } | |
| 2928 | - return ['imageUrl' => $saved_url]; | |
| 2929 | - } else { | |
| 2930 | - return ['error' => esc_html__('Failed to generate image.', 'mxchat')]; | |
| 2931 | - } | |
| 2932 | -} | |
| 2933 | - | |
| 2934 | -/** | |
| 2935 | - * Generate an image via a Custom (OpenAI-compatible) provider's /images/generations route. | |
| 2936 | - * Only called when the opt-in 'custom_provider_for_images' setting is on. | |
| 2937 | - */ | |
| 2938 | -private function mxchat_generate_custom_image($prompt, $timeout = 90) { | |
| 2939 | - $cfg = $this->mxchat_resolve_custom_provider(); | |
| 2940 | - if (empty($cfg['base_url'])) { | |
| 2941 | - return ['error' => esc_html__('Custom provider Base URL is not configured.', 'mxchat')]; | |
| 2942 | - } | |
| 2943 | - $url = $cfg['base_url'] . '/images/generations'; | |
| 2944 | - if (!empty($cfg['api_version'])) { | |
| 2945 | - $url .= (strpos($url, '?') === false ? '?' : '&') . 'api-version=' . rawurlencode($cfg['api_version']); | |
| 2946 | - } | |
| 2947 | - $body = wp_json_encode([ | |
| 2948 | - 'prompt' => sanitize_text_field($prompt), | |
| 2949 | - 'n' => 1, | |
| 2950 | - 'size' => '1024x1024', | |
| 2951 | - 'model' => $cfg['model'], | |
| 2952 | - ]); | |
| 2953 | - $response = wp_remote_post($url, [ | |
| 2954 | - 'headers' => $this->mxchat_custom_provider_assoc_headers($cfg), | |
| 2955 | - 'body' => $body, | |
| 2956 | - 'method' => 'POST', | |
| 2957 | - 'timeout' => absint($timeout), | |
| 2958 | - ]); | |
| 2959 | - if (is_wp_error($response)) { | |
| 2960 | - return ['error' => esc_html__('Error generating image (custom provider): ', 'mxchat') . $response->get_error_message()]; | |
| 2961 | - } | |
| 2962 | - $resp = json_decode(wp_remote_retrieve_body($response), true); | |
| 2963 | - // Try b64 first (matches OpenAI shape), then url-based fallback. | |
| 2964 | - $b64 = $resp['data'][0]['b64_json'] ?? $resp['data'][0]['b64'] ?? null; | |
| 2965 | - if ($b64) { | |
| 2966 | - $saved = $this->mxchat_save_generated_image($b64, 'image/png', 'mxchat-custom'); | |
| 2967 | - if (is_wp_error($saved)) { | |
| 2968 | - return ['error' => $saved->get_error_message()]; | |
| 2969 | - } | |
| 2970 | - return ['imageUrl' => $saved]; | |
| 2971 | - } | |
| 2972 | - $remote_url = $resp['data'][0]['url'] ?? null; | |
| 2973 | - if ($remote_url) { | |
| 2974 | - return ['imageUrl' => esc_url_raw($remote_url)]; | |
| 2975 | - } | |
| 2976 | - $err_msg = $resp['error']['message'] ?? esc_html__('Custom provider did not return an image.', 'mxchat'); | |
| 2977 | - return ['error' => esc_html($err_msg)]; | |
| 2978 | -} | |
| 2979 | - | |
| 2980 | -private function mxchat_generate_imagen_image($prompt, $api_key, $timeout = 60) { | |
| 2981 | - $api_url = 'https://generativelanguage.googleapis.com/v1beta/models/imagen-4.0-generate-001:predict'; | |
| 2982 | - | |
| 2983 | - $body = json_encode([ | |
| 2984 | - 'instances' => [['prompt' => sanitize_text_field($prompt)]], | |
| 2985 | - 'parameters' => [ | |
| 2986 | - 'sampleCount' => 1, | |
| 2987 | - 'aspectRatio' => '1:1', | |
| 2988 | - ], | |
| 2989 | - ]); | |
| 2990 | - | |
| 2991 | - $args = [ | |
| 2992 | - 'body' => $body, | |
| 2993 | - 'headers' => [ | |
| 2994 | - 'Content-Type' => 'application/json', | |
| 2995 | - 'x-goog-api-key' => sanitize_text_field($api_key), | |
| 2996 | - ], | |
| 2997 | - 'method' => 'POST', | |
| 2998 | - 'timeout' => absint($timeout), | |
| 2999 | - ]; | |
| 3000 | - | |
| 3001 | - $response = wp_remote_post($api_url, $args); | |
| 3002 | - | |
| 3003 | - if (is_wp_error($response)) { | |
| 3004 | - return ['error' => esc_html__('Error generating image: ', 'mxchat') . $response->get_error_message()]; | |
| 3005 | - } | |
| 3006 | - | |
| 3007 | - $response_body = json_decode(wp_remote_retrieve_body($response), true); | |
| 3008 | - | |
| 3009 | - $b64 = $response_body['predictions'][0]['bytesBase64Encoded'] ?? $response_body['predictions'][0]['imageBytes'] ?? null; | |
| 3010 | - if ($b64) { | |
| 3011 | - $mime = $response_body['predictions'][0]['mimeType'] ?? 'image/png'; | |
| 3012 | - $saved_url = $this->mxchat_save_generated_image($b64, $mime, 'mxchat-gemini'); | |
| 3013 | - if (is_wp_error($saved_url)) { | |
| 3014 | - return ['error' => $saved_url->get_error_message()]; | |
| 3015 | - } | |
| 3016 | - return ['imageUrl' => $saved_url]; | |
| 3017 | - } else { | |
| 3018 | - return ['error' => esc_html__('Failed to generate image.', 'mxchat')]; | |
| 3019 | - } | |
| 3020 | -} | |
| 3021 | - | |
| 3022 | -/** | |
| 3023 | - * Handle web search requests. | |
| 3024 | - * | |
| 3025 | - * Sends the refined search query to the Brave Search API and uses the | |
| 3026 | - * results to generate a conversational response with the AI model. | |
| 3027 | - * | |
| 3028 | - * @since 1.0.0 | |
| 3029 | - * @param string $message The user's search query. | |
| 3030 | - * @param string $user_id The user identifier. | |
| 3031 | - * @param string $session_id The current session ID. | |
| 3032 | - * @return array Response array containing text with embedded HTML links | |
| 3033 | - */ | |
| 3034 | -public function mxchat_handle_search_request($message, $user_id, $session_id) { | |
| 3035 | - // Step 1: Interpret and refine the search query | |
| 3036 | - $refined_search_query = $this->mxchat_interpret_search_query($message); | |
| 3037 | - if (empty($refined_search_query)) { | |
| 3038 | - return array( | |
| 3039 | - 'text' => esc_html__('I apologize, but could you please rephrase your search request?', 'mxchat'), | |
| 3040 | - 'html' => '' | |
| 3041 | - ); | |
| 3042 | - } | |
| 3043 | - | |
| 3044 | - // Retrieve and validate API settings | |
| 3045 | - $options = get_option('mxchat_options'); | |
| 3046 | - $api_key = isset($options['brave_api_key']) ? sanitize_text_field($options['brave_api_key']) : ''; | |
| 3047 | - $results_count = isset($options['brave_results_count']) ? absint($options['brave_results_count']) : 5; | |
| 3048 | - | |
| 3049 | - if (empty($api_key)) { | |
| 3050 | - return array( | |
| 3051 | - 'text' => esc_html__('Search functionality is temporarily unavailable. Please try again later.', 'mxchat'), | |
| 3052 | - 'html' => '' | |
| 3053 | - ); | |
| 3054 | - } | |
| 3055 | - | |
| 3056 | - // Build the API request URL | |
| 3057 | - $api_url = add_query_arg( | |
| 3058 | - array( | |
| 3059 | - 'q' => rawurlencode($refined_search_query), | |
| 3060 | - 'count' => $results_count, | |
| 3061 | - 'text_decorations' => 'true', | |
| 3062 | - 'rich_data' => 'true', | |
| 3063 | - ), | |
| 3064 | - 'https://api.search.brave.com/res/v1/web/search' | |
| 3065 | - ); | |
| 3066 | - | |
| 3067 | - // Attempt to retrieve cached results first | |
| 3068 | - $transient_key = 'mxchat_search_' . md5($refined_search_query); | |
| 3069 | - $results = get_transient($transient_key); | |
| 3070 | - | |
| 3071 | - if (false === $results) { | |
| 3072 | - // SECURITY FIX: Changed to wp_safe_remote_get | |
| 3073 | - $response = wp_safe_remote_get( | |
| 3074 | - $api_url, | |
| 3075 | - array( | |
| 3076 | - 'headers' => array( | |
| 3077 | - 'Accept' => 'application/json', | |
| 3078 | - 'Accept-Encoding' => 'gzip', | |
| 3079 | - 'X-Subscription-Token'=> $api_key, | |
| 3080 | - ), | |
| 3081 | - 'timeout' => 10, | |
| 3082 | - ) | |
| 3083 | - ); | |
| 3084 | - | |
| 3085 | - if (is_wp_error($response)) { | |
| 3086 | - return array( | |
| 3087 | - 'text' => esc_html__('I encountered an error while searching. Please try again.', 'mxchat'), | |
| 3088 | - 'html' => '' | |
| 3089 | - ); | |
| 3090 | - } | |
| 3091 | - | |
| 3092 | - $results = json_decode(wp_remote_retrieve_body($response), true); | |
| 3093 | - | |
| 3094 | - if (json_last_error() !== JSON_ERROR_NONE) { | |
| 3095 | - return array( | |
| 3096 | - 'text' => esc_html__('I received an invalid response from the search service.', 'mxchat'), | |
| 3097 | - 'html' => '' | |
| 3098 | - ); | |
| 3099 | - } | |
| 3100 | - | |
| 3101 | - // Cache results for one hour | |
| 3102 | - set_transient($transient_key, $results, HOUR_IN_SECONDS); | |
| 3103 | - } | |
| 3104 | - | |
| 3105 | - // Process results | |
| 3106 | - if (!empty($results['web']['results']) && is_array($results['web']['results'])) { | |
| 3107 | - // Create a more straightforward summary with HTML links | |
| 3108 | - $search_results_text = ''; | |
| 3109 | - | |
| 3110 | - // Add a simple intro | |
| 3111 | - $search_results_text .= sprintf( | |
| 3112 | - esc_html__("Here's what I found about '%s':", 'mxchat'), | |
| 3113 | - esc_html($refined_search_query) | |
| 3114 | - ); | |
| 3115 | - | |
| 3116 | - // Add the top results with HTML links | |
| 3117 | - foreach (array_slice($results['web']['results'], 0, 5) as $result) { | |
| 3118 | - $title = isset($result['title']) ? wp_strip_all_tags($result['title']) : ''; | |
| 3119 | - $url = isset($result['url']) ? esc_url($result['url']) : ''; | |
| 3120 | - $description = isset($result['description']) ? wp_strip_all_tags($result['description']) : ''; | |
| 3121 | - | |
| 3122 | - // Add a line break after the intro | |
| 3123 | - $search_results_text .= '<br><br>'; | |
| 3124 | - | |
| 3125 | - // Add title as a link | |
| 3126 | - $search_results_text .= sprintf( | |
| 3127 | - '<a href="%s" target="_blank" rel="noopener noreferrer">%s</a><br>', | |
| 3128 | - $url, | |
| 3129 | - $title | |
| 3130 | - ); | |
| 3131 | - | |
| 3132 | - // Add a condensed description | |
| 3133 | - $search_results_text .= sprintf("%s", $description); | |
| 3134 | - } | |
| 3135 | - | |
| 3136 | - // Save to chat history | |
| 3137 | - $this->mxchat_save_chat_message($session_id, 'bot', $search_results_text); | |
| 3138 | - | |
| 3139 | - // Return the formatted text with embedded HTML links | |
| 3140 | - return array( | |
| 3141 | - 'text' => $search_results_text, | |
| 3142 | - 'html' => '' | |
| 3143 | - ); | |
| 3144 | - } else { | |
| 3145 | - return array( | |
| 3146 | - 'text' => sprintf( | |
| 3147 | - esc_html__('I searched for "%s" but couldn\'t find any relevant results. Would you like to try different search terms?', 'mxchat'), | |
| 3148 | - esc_html($refined_search_query) | |
| 3149 | - ), | |
| 3150 | - 'html' => '' | |
| 3151 | - ); | |
| 3152 | - } | |
| 3153 | -} | |
| 3154 | - | |
| 3155 | -//very good | |
| 3156 | -/** | |
| 3157 | - * Handle image search requests from the chatbot | |
| 3158 | - * | |
| 3159 | - * @param string $message The user's search query | |
| 3160 | - * @param int $user_id The user's ID | |
| 3161 | - * @param string $session_id The chat session ID | |
| 3162 | - * @return array Response array with text and HTML content | |
| 3163 | - */ | |
| 3164 | -public function mxchat_handle_image_search_request($message, $user_id, $session_id) { | |
| 3165 | - // Step 1: Interpret the search query using the user's selected AI model | |
| 3166 | - $refined_search_query = $this->mxchat_interpret_search_query($message); | |
| 3167 | - | |
| 3168 | - // If no query was interpreted, return a fallback message | |
| 3169 | - if (empty($refined_search_query)) { | |
| 3170 | - return array( | |
| 3171 | - 'text' => __("I'm sorry, I couldn't interpret your search query. Please specify what you'd like to see images of.", 'mxchat'), | |
| 3172 | - 'html' => "", | |
| 3173 | - ); | |
| 3174 | - } | |
| 3175 | - | |
| 3176 | - // Brave API URL | |
| 3177 | - $api_url = 'https://api.search.brave.com/res/v1/images/search'; | |
| 3178 | - | |
| 3179 | - // Retrieve Brave API settings | |
| 3180 | - $options = get_option('mxchat_options'); | |
| 3181 | - $api_key = isset($options['brave_api_key']) ? sanitize_text_field($options['brave_api_key']) : ''; | |
| 3182 | - | |
| 3183 | - if (empty($api_key)) { | |
| 3184 | - return array( | |
| 3185 | - 'text' => __("API key is not configured. Please set it in the Brave Search Settings.", 'mxchat'), | |
| 3186 | - 'html' => "", | |
| 3187 | - ); | |
| 3188 | - } | |
| 3189 | - | |
| 3190 | - $image_count = isset($options['brave_image_count']) ? intval($options['brave_image_count']) : 4; | |
| 3191 | - $safe_search = isset($options['brave_safe_search']) ? sanitize_text_field($options['brave_safe_search']) : 'strict'; | |
| 3192 | - | |
| 3193 | - // Append query parameters based on settings | |
| 3194 | - $api_url = add_query_arg([ | |
| 3195 | - 'q' => rawurlencode($refined_search_query), | |
| 3196 | - 'count' => $image_count, | |
| 3197 | - 'safesearch' => $safe_search, | |
| 3198 | - ], $api_url); | |
| 3199 | - | |
| 3200 | - // Implement caching | |
| 3201 | - $transient_key = 'mxchat_image_search_' . md5($refined_search_query); | |
| 3202 | - $body = get_transient($transient_key); | |
| 3203 | - | |
| 3204 | - if (false === $body) { | |
| 3205 | - $args = [ | |
| 3206 | - 'headers' => [ | |
| 3207 | - 'Accept' => 'application/json', | |
| 3208 | - 'Accept-Encoding' => 'gzip', | |
| 3209 | - 'X-Subscription-Token' => $api_key, | |
| 3210 | - ], | |
| 3211 | - 'timeout' => 10, | |
| 3212 | - ]; | |
| 3213 | - | |
| 3214 | - // SECURITY FIX: Changed to wp_safe_remote_get | |
| 3215 | - $response = wp_safe_remote_get($api_url, $args); | |
| 3216 | - | |
| 3217 | - if (is_wp_error($response)) { | |
| 3218 | - return array( | |
| 3219 | - 'text' => __("I'm sorry, I couldn't retrieve any images based on your request.", 'mxchat'), | |
| 3220 | - 'html' => "", | |
| 3221 | - ); | |
| 3222 | - } | |
| 3223 | - | |
| 3224 | - $body = json_decode(wp_remote_retrieve_body($response), true); | |
| 3225 | - set_transient($transient_key, $body, HOUR_IN_SECONDS); | |
| 3226 | - } | |
| 3227 | - | |
| 3228 | - // Process the API response | |
| 3229 | - if (isset($body['results']) && is_array($body['results']) && count($body['results']) > 0) { | |
| 3230 | - $html_output = '<div class="mxchat-image-gallery">'; | |
| 3231 | - | |
| 3232 | - // Get the configured image count (1-6) | |
| 3233 | - $display_count = isset($options['brave_image_count']) ? intval($options['brave_image_count']) : 4; | |
| 3234 | - $display_count = min($display_count, count($body['results'])); // Make sure we don't exceed available images | |
| 3235 | - | |
| 3236 | - // Use only the requested number of images | |
| 3237 | - for ($i = 0; $i < $display_count; $i++) { | |
| 3238 | - $image = $body['results'][$i]; | |
| 3239 | - $image_url = isset($image['url']) ? esc_url($image['url']) : ''; | |
| 3240 | - $thumbnail_url = isset($image['thumbnail']['src']) ? esc_url($image['thumbnail']['src']) : ''; | |
| 3241 | - $title = isset($image['title']) ? esc_html($image['title']) : esc_html__('Image', 'mxchat'); | |
| 3242 | - | |
| 3243 | - if ($image_url && $thumbnail_url) { | |
| 3244 | - $html_output .= '<div class="mxchat-image-item">'; | |
| 3245 | - $html_output .= '<strong class="mxchat-image-title">' . $title . '</strong>'; | |
| 3246 | - $html_output .= '<a href="' . $image_url . '" target="_blank" rel="noopener noreferrer" class="mxchat-image-link">'; | |
| 3247 | - $html_output .= '<img src="' . $thumbnail_url . '" alt="' . $title . '" class="mxchat-image-thumbnail">'; | |
| 3248 | - $html_output .= '</a></div>'; | |
| 3249 | - } | |
| 3250 | - } | |
| 3251 | - | |
| 3252 | - $html_output .= '</div>'; | |
| 3253 | - | |
| 3254 | - // Create response text | |
| 3255 | - $response_text = sprintf(__("Here are some images of %s:", 'mxchat'), $refined_search_query); | |
| 3256 | - | |
| 3257 | - // Save both response text and HTML to chat history | |
| 3258 | - $this->mxchat_save_chat_message($session_id, 'bot', $response_text); | |
| 3259 | - $this->mxchat_save_chat_message($session_id, 'bot', $html_output); | |
| 3260 | - | |
| 3261 | - // Return the combined response | |
| 3262 | - return array( | |
| 3263 | - 'text' => $response_text, | |
| 3264 | - 'html' => $html_output, | |
| 3265 | - ); | |
| 3266 | - } else { | |
| 3267 | - $response_text = __("I'm sorry, I couldn't retrieve any images based on your request.", 'mxchat'); | |
| 3268 | - | |
| 3269 | - // Save the error message to chat history | |
| 3270 | - $this->mxchat_save_chat_message($session_id, 'bot', $response_text); | |
| 3271 | - | |
| 3272 | - return array( | |
| 3273 | - 'text' => $response_text, | |
| 3274 | - 'html' => "", | |
| 3275 | - ); | |
| 3276 | - } | |
| 3277 | -} | |
| 3278 | - | |
| 3279 | -/** | |
| 3280 | - * Interpret the search query using the user's selected AI model | |
| 3281 | - * | |
| 3282 | - * @param string $user_query The original query from the user | |
| 3283 | - * @return string The refined search query | |
| 3284 | - */ | |
| 3285 | -public function mxchat_interpret_search_query($user_query) { | |
| 3286 | - $system_prompt = esc_html__("Interpret the user's request to provide only the essential keywords or phrases for image searching. Remove conversational language, politeness, or extra context. Return a concise search query that doesn't lose any of the original meaning.", 'mxchat'); | |
| 3287 | - | |
| 3288 | - // Get options and determine the selected model | |
| 3289 | - $options = $this->options ?? get_option('mxchat_options'); | |
| 3290 | - $selected_model = isset($options['model']) ? $options['model'] : 'gpt-5.1-chat-latest'; | |
| 3291 | - | |
| 3292 | - // Custom (OpenAI-compatible) provider routes by model id, not prefix. | |
| 3293 | - if ($selected_model === 'custom-provider') { | |
| 3294 | - return $this->interpret_query_with_custom($user_query, $system_prompt); | |
| 3295 | - } | |
| 3296 | - | |
| 3297 | - // Extract model prefix to determine the provider | |
| 3298 | - $model_parts = explode('-', $selected_model); | |
| 3299 | - $provider = strtolower($model_parts[0]); | |
| 3300 | - | |
| 3301 | - // Determine which API key to use based on the provider | |
| 3302 | - switch ($provider) { | |
| 3303 | - case 'gemini': | |
| 3304 | - $api_key = isset($options['gemini_api_key']) ? sanitize_text_field($options['gemini_api_key']) : ''; | |
| 3305 | - if (empty($api_key)) { | |
| 3306 | - return sanitize_text_field($user_query); // Default to original query if API key missing | |
| 3307 | - } | |
| 3308 | - return $this->interpret_query_with_gemini($user_query, $system_prompt, $api_key, $selected_model); | |
| 3309 | - | |
| 3310 | - case 'claude': | |
| 3311 | - $api_key = isset($options['claude_api_key']) ? sanitize_text_field($options['claude_api_key']) : ''; | |
| 3312 | - if (empty($api_key)) { | |
| 3313 | - return sanitize_text_field($user_query); | |
| 3314 | - } | |
| 3315 | - return $this->interpret_query_with_claude($user_query, $system_prompt, $api_key, $selected_model); | |
| 3316 | - | |
| 3317 | - case 'grok': | |
| 3318 | - $api_key = isset($options['xai_api_key']) ? sanitize_text_field($options['xai_api_key']) : ''; | |
| 3319 | - if (empty($api_key)) { | |
| 3320 | - return sanitize_text_field($user_query); | |
| 3321 | - } | |
| 3322 | - return $this->interpret_query_with_xai($user_query, $system_prompt, $api_key, $selected_model); | |
| 3323 | - | |
| 3324 | - case 'deepseek': | |
| 3325 | - $api_key = isset($options['deepseek_api_key']) ? sanitize_text_field($options['deepseek_api_key']) : ''; | |
| 3326 | - if (empty($api_key)) { | |
| 3327 | - return sanitize_text_field($user_query); | |
| 3328 | - } | |
| 3329 | - return $this->interpret_query_with_deepseek($user_query, $system_prompt, $api_key, $selected_model); | |
| 3330 | - | |
| 3331 | - case 'gpt': | |
| 3332 | - default: | |
| 3333 | - // Default to OpenAI for custom models or unrecognized prefixes | |
| 3334 | - $api_key = isset($options['api_key']) ? sanitize_text_field($options['api_key']) : ''; | |
| 3335 | - if (empty($api_key)) { | |
| 3336 | - return sanitize_text_field($user_query); | |
| 3337 | - } | |
| 3338 | - return $this->interpret_query_with_openai($user_query, $system_prompt, $api_key, $selected_model); | |
| 3339 | - } | |
| 3340 | -} | |
| 3341 | - | |
| 3342 | -/** | |
| 3343 | - * Interpret query against the configured Custom (OpenAI-compatible) provider. | |
| 3344 | - * Uses the same base URL + auth scheme as the chat dispatcher. | |
| 3345 | - */ | |
| 3346 | -private function interpret_query_with_custom($user_query, $system_prompt) { | |
| 3347 | - $cfg = $this->mxchat_resolve_custom_provider(); | |
| 3348 | - if (empty($cfg['base_url'])) { | |
| 3349 | - return sanitize_text_field($user_query); | |
| 3350 | - } | |
| 3351 | - $args = [ | |
| 3352 | - 'headers' => $this->mxchat_custom_provider_assoc_headers($cfg), | |
| 3353 | - 'body' => wp_json_encode([ | |
| 3354 | - 'model' => $cfg['model'], | |
| 3355 | - 'messages' => [ | |
| 3356 | - ['role' => 'system', 'content' => $system_prompt], | |
| 3357 | - ['role' => 'user', 'content' => sanitize_text_field($user_query)], | |
| 3358 | - ], | |
| 3359 | - 'temperature' => 0.2, | |
| 3360 | - 'max_tokens' => 20, | |
| 3361 | - ]), | |
| 3362 | - 'method' => 'POST', | |
| 3363 | - 'timeout' => 15, | |
| 3364 | - ]; | |
| 3365 | - $response = wp_remote_post($cfg['chat_url'], $args); | |
| 3366 | - if (is_wp_error($response)) { | |
| 3367 | - return sanitize_text_field($user_query); | |
| 3368 | - } | |
| 3369 | - $body = json_decode(wp_remote_retrieve_body($response), true); | |
| 3370 | - return isset($body['choices'][0]['message']['content']) | |
| 3371 | - ? sanitize_text_field(trim($body['choices'][0]['message']['content'])) | |
| 3372 | - : sanitize_text_field($user_query); | |
| 3373 | -} | |
| 3374 | - | |
| 3375 | -/** | |
| 3376 | - * Convert the colon-style header list returned by mxchat_resolve_custom_provider | |
| 3377 | - * into the assoc-array form wp_remote_post expects. | |
| 3378 | - */ | |
| 3379 | -private function mxchat_custom_provider_assoc_headers($cfg) { | |
| 3380 | - $headers = ['Content-Type' => 'application/json']; | |
| 3381 | - if (!empty($cfg['api_key'])) { | |
| 3382 | - if (($cfg['auth_scheme'] ?? 'bearer') === 'api-key') { | |
| 3383 | - $headers['api-key'] = $cfg['api_key']; | |
| 3384 | - } else { | |
| 3385 | - $headers['Authorization'] = 'Bearer ' . $cfg['api_key']; | |
| 3386 | - } | |
| 3387 | - } | |
| 3388 | - return $headers; | |
| 3389 | -} | |
| 3390 | - | |
| 3391 | -/** | |
| 3392 | - * Interpret query using OpenAI models | |
| 3393 | - */ | |
| 3394 | -private function interpret_query_with_openai($user_query, $system_prompt, $api_key, $model = 'gpt-5.1-chat-latest') { | |
| 3395 | - $url = 'https://api.openai.com/v1/chat/completions'; | |
| 3396 | - $args = [ | |
| 3397 | - 'headers' => [ | |
| 3398 | - 'Authorization' => 'Bearer ' . $api_key, | |
| 3399 | - 'Content-Type' => 'application/json', | |
| 3400 | - ], | |
| 3401 | - 'body' => wp_json_encode([ | |
| 3402 | - 'model' => $model, | |
| 3403 | - 'messages' => [ | |
| 3404 | - ['role' => 'system', 'content' => $system_prompt], | |
| 3405 | - ['role' => 'user', 'content' => sanitize_text_field($user_query)], | |
| 3406 | - ], | |
| 3407 | - 'temperature' => 0.2, | |
| 3408 | - 'max_tokens' => 20, | |
| 3409 | - ]), | |
| 3410 | - 'method' => 'POST', | |
| 3411 | - 'timeout' => 15, | |
| 3412 | - ]; | |
| 3413 | - | |
| 3414 | - $response = wp_remote_post($url, $args); | |
| 3415 | - if (is_wp_error($response)) { | |
| 3416 | - return sanitize_text_field($user_query); | |
| 3417 | - } | |
| 3418 | - | |
| 3419 | - $body = json_decode(wp_remote_retrieve_body($response), true); | |
| 3420 | - return isset($body['choices'][0]['message']['content']) | |
| 3421 | - ? sanitize_text_field(trim($body['choices'][0]['message']['content'])) | |
| 3422 | - : sanitize_text_field($user_query); | |
| 3423 | -} | |
| 3424 | - | |
| 3425 | -/** | |
| 3426 | - * Anthropic removed temperature/top_p/top_k starting with Opus 4.7 (the API | |
| 3427 | - * returns 400 if sent) — add new flagship model ids here. (We don't send | |
| 3428 | - * top_p/top_k in any Claude body, so the list only needs to gate temperature | |
| 3429 | - * stripping. We never send a `thinking` param either, which is required for | |
| 3430 | - * claude-fable-5: it rejects an explicit thinking "disabled" — omit only.) | |
| 3431 | - */ | |
| 3432 | -private function mxchat_claude_omits_temperature($model) { | |
| 3433 | - $no_temp = array('claude-opus-4-7', 'claude-opus-4-8', 'claude-fable-5'); | |
| 3434 | - return in_array($model, $no_temp, true); | |
| 3435 | -} | |
| 3436 | - | |
| 3437 | -/** | |
| 3438 | - * Interpret query using Claude models | |
| 3439 | - */ | |
| 3440 | -private function interpret_query_with_claude($user_query, $system_prompt, $api_key, $model) { | |
| 3441 | - // Anthropic retired claude-opus-4-20250514 / claude-sonnet-4-20250514 on 2026-06-15. | |
| 3442 | - // Read-time rescue: remap a saved dead ID to the current equivalent before the API call. | |
| 3443 | - if ($model === 'claude-opus-4-20250514') { $model = 'claude-opus-4-8'; } | |
| 3444 | - elseif ($model === 'claude-sonnet-4-20250514') { $model = 'claude-sonnet-4-6'; } | |
| 3445 | - $url = 'https://api.anthropic.com/v1/messages'; | |
| 3446 | - | |
| 3447 | - $payload = [ | |
| 3448 | - 'model' => $model, | |
| 3449 | - 'system' => $system_prompt, | |
| 3450 | - 'messages' => [ | |
| 3451 | - ['role' => 'user', 'content' => sanitize_text_field($user_query)] | |
| 3452 | - ], | |
| 3453 | - 'max_tokens' => 20, | |
| 3454 | - 'temperature' => 0.2, | |
| 3455 | - ]; | |
| 3456 | - if ($this->mxchat_claude_omits_temperature($model)) { unset($payload['temperature']); } | |
| 3457 | - | |
| 3458 | - $args = [ | |
| 3459 | - 'headers' => [ | |
| 3460 | - 'Content-Type' => 'application/json', | |
| 3461 | - 'x-api-key' => $api_key, | |
| 3462 | - 'anthropic-version' => '2023-06-01', | |
| 3463 | - ], | |
| 3464 | - 'body' => wp_json_encode($payload), | |
| 3465 | - 'method' => 'POST', | |
| 3466 | - 'timeout' => 15, | |
| 3467 | - ]; | |
| 3468 | - | |
| 3469 | - $response = wp_remote_post($url, $args); | |
| 3470 | - if (is_wp_error($response)) { | |
| 3471 | - return sanitize_text_field($user_query); | |
| 3472 | - } | |
| 3473 | - | |
| 3474 | - $body = json_decode(wp_remote_retrieve_body($response), true); | |
| 3475 | - // claude-fable-5 prepends a thinking block to content — take the first | |
| 3476 | - // TEXT block, not content[0]. | |
| 3477 | - foreach ((array) ($body['content'] ?? array()) as $block) { | |
| 3478 | - if (isset($block['type'], $block['text']) && $block['type'] === 'text' && trim($block['text']) !== '') { | |
| 3479 | - return sanitize_text_field(trim($block['text'])); | |
| 3480 | - } | |
| 3481 | - } | |
| 3482 | - | |
| 3483 | - return sanitize_text_field($user_query); | |
| 3484 | -} | |
| 3485 | - | |
| 3486 | -/** | |
| 3487 | - * Interpret query using Gemini models | |
| 3488 | - */ | |
| 3489 | -private function interpret_query_with_gemini($user_query, $system_prompt, $api_key, $model) { | |
| 3490 | - if ($model === 'gemini-3-pro-preview') { | |
| 3491 | - $model = 'gemini-3.1-pro-preview'; | |
| 3492 | - } | |
| 3493 | - // Use v1beta for preview models, v1 for stable models | |
| 3494 | - $api_version = (strpos($model, 'preview') !== false || strpos($model, 'exp') !== false) ? 'v1beta' : 'v1'; | |
| 3495 | - | |
| 3496 | - $url = "https://generativelanguage.googleapis.com/{$api_version}/models/{$model}:generateContent?key=" . urlencode($api_key); | |
| 3497 | - | |
| 3498 | - $args = [ | |
| 3499 | - 'headers' => [ | |
| 3500 | - 'Content-Type' => 'application/json', | |
| 3501 | - ], | |
| 3502 | - 'body' => wp_json_encode([ | |
| 3503 | - 'contents' => [ | |
| 3504 | - [ | |
| 3505 | - 'role' => 'user', | |
| 3506 | - 'parts' => [ | |
| 3507 | - ['text' => $system_prompt . "\n\nQuery: " . sanitize_text_field($user_query)] | |
| 3508 | - ] | |
| 3509 | - ] | |
| 3510 | - ], | |
| 3511 | - 'generationConfig' => [ | |
| 3512 | - 'temperature' => 0.2, | |
| 3513 | - 'maxOutputTokens' => 20, | |
| 3514 | - ], | |
| 3515 | - ]), | |
| 3516 | - 'method' => 'POST', | |
| 3517 | - 'timeout' => 15, | |
| 3518 | - ]; | |
| 3519 | - | |
| 3520 | - $response = wp_remote_post($url, $args); | |
| 3521 | - if (is_wp_error($response)) { | |
| 3522 | - return sanitize_text_field($user_query); | |
| 3523 | - } | |
| 3524 | - | |
| 3525 | - $body = json_decode(wp_remote_retrieve_body($response), true); | |
| 3526 | - if (!empty($body['candidates'][0]['content']['parts'][0]['text'])) { | |
| 3527 | - return sanitize_text_field(trim($body['candidates'][0]['content']['parts'][0]['text'])); | |
| 3528 | - } | |
| 3529 | - | |
| 3530 | - return sanitize_text_field($user_query); | |
| 3531 | -} | |
| 3532 | - | |
| 3533 | -/** | |
| 3534 | - * Interpret query using X.AI (Grok) models | |
| 3535 | - */ | |
| 3536 | -private function interpret_query_with_xai($user_query, $system_prompt, $api_key, $model) { | |
| 3537 | - $url = 'https://api.xai.com/v1/chat/completions'; | |
| 3538 | - | |
| 3539 | - $args = [ | |
| 3540 | - 'headers' => [ | |
| 3541 | - 'Content-Type' => 'application/json', | |
| 3542 | - 'Authorization' => 'Bearer ' . $api_key, | |
| 3543 | - ], | |
| 3544 | - 'body' => wp_json_encode([ | |
| 3545 | - 'model' => $model, | |
| 3546 | - 'messages' => [ | |
| 3547 | - ['role' => 'system', 'content' => $system_prompt], | |
| 3548 | - ['role' => 'user', 'content' => sanitize_text_field($user_query)], | |
| 3549 | - ], | |
| 3550 | - 'temperature' => 0.2, | |
| 3551 | - 'max_tokens' => 20, | |
| 3552 | - ]), | |
| 3553 | - 'method' => 'POST', | |
| 3554 | - 'timeout' => 15, | |
| 3555 | - ]; | |
| 3556 | - | |
| 3557 | - $response = wp_remote_post($url, $args); | |
| 3558 | - if (is_wp_error($response)) { | |
| 3559 | - return sanitize_text_field($user_query); | |
| 3560 | - } | |
| 3561 | - | |
| 3562 | - $body = json_decode(wp_remote_retrieve_body($response), true); | |
| 3563 | - if (isset($body['choices'][0]['message']['content'])) { | |
| 3564 | - return sanitize_text_field(trim($body['choices'][0]['message']['content'])); | |
| 3565 | - } | |
| 3566 | - | |
| 3567 | - return sanitize_text_field($user_query); | |
| 3568 | -} | |
| 3569 | - | |
| 3570 | -/** | |
| 3571 | - * Interpret query using DeepSeek models | |
| 3572 | - */ | |
| 3573 | -private function interpret_query_with_deepseek($user_query, $system_prompt, $api_key, $model) { | |
| 3574 | - $url = 'https://api.deepseek.com/v1/chat/completions'; | |
| 3575 | - | |
| 3576 | - $args = [ | |
| 3577 | - 'headers' => [ | |
| 3578 | - 'Content-Type' => 'application/json', | |
| 3579 | - 'Authorization' => 'Bearer ' . $api_key, | |
| 3580 | - ], | |
| 3581 | - 'body' => wp_json_encode([ | |
| 3582 | - 'model' => $model, | |
| 3583 | - 'messages' => [ | |
| 3584 | - ['role' => 'system', 'content' => $system_prompt], | |
| 3585 | - ['role' => 'user', 'content' => sanitize_text_field($user_query)], | |
| 3586 | - ], | |
| 3587 | - 'temperature' => 0.2, | |
| 3588 | - 'max_tokens' => 20, | |
| 3589 | - ]), | |
| 3590 | - 'method' => 'POST', | |
| 3591 | - 'timeout' => 15, | |
| 3592 | - ]; | |
| 3593 | - | |
| 3594 | - $response = wp_remote_post($url, $args); | |
| 3595 | - if (is_wp_error($response)) { | |
| 3596 | - return sanitize_text_field($user_query); | |
| 3597 | - } | |
| 3598 | - | |
| 3599 | - $body = json_decode(wp_remote_retrieve_body($response), true); | |
| 3600 | - if (isset($body['choices'][0]['message']['content'])) { | |
| 3601 | - return sanitize_text_field(trim($body['choices'][0]['message']['content'])); | |
| 3602 | - } | |
| 3603 | - | |
| 3604 | - return sanitize_text_field($user_query); | |
| 3605 | -} | |
| 3606 | - | |
| 3607 | -//very good | |
| 3608 | -private function add_email_to_loops($email) { | |
| 3609 | - // Sanitize the email | |
| 3610 | - $email = sanitize_email($email); | |
| 3611 | - | |
| 3612 | - // Retrieve and sanitize options | |
| 3613 | - $api_key = isset($this->options['loops_api_key']) ? sanitize_text_field($this->options['loops_api_key']) : ''; | |
| 3614 | - $mailing_list_id = isset($this->options['loops_mailing_list']) ? sanitize_text_field($this->options['loops_mailing_list']) : ''; | |
| 3615 | - | |
| 3616 | - // Check for missing API key or mailing list ID | |
| 3617 | - if (empty($api_key) || empty($mailing_list_id)) { | |
| 3618 | - //error_log(esc_html__('Loops API key or mailing list ID is missing.', 'mxchat')); | |
| 3619 | - return; | |
| 3620 | - } | |
| 3621 | - | |
| 3622 | - $data = array( | |
| 3623 | - 'email' => $email, | |
| 3624 | - 'subscribed' => true, | |
| 3625 | - 'source' => __('MxChat AI Chatbot', 'mxchat'), | |
| 3626 | - 'mailingLists' => array($mailing_list_id => true), | |
| 3627 | - ); | |
| 3628 | - | |
| 3629 | - $url = 'https://app.loops.so/api/v1/contacts/create'; | |
| 3630 | - $args = array( | |
| 3631 | - 'body' => wp_json_encode($data), | |
| 3632 | - 'headers' => array( | |
| 3633 | - 'Authorization' => 'Bearer ' . $api_key, | |
| 3634 | - 'Content-Type' => 'application/json', | |
| 3635 | - ), | |
| 3636 | - 'method' => 'POST', | |
| 3637 | - 'timeout' => 45, | |
| 3638 | - ); | |
| 3639 | - | |
| 3640 | - $response = wp_remote_post($url, $args); | |
| 3641 | - | |
| 3642 | - // Handle errors in the API request | |
| 3643 | - if (is_wp_error($response)) { | |
| 3644 | - //error_log(esc_html__('Error adding email to Loops: ', 'mxchat') . $response->get_error_message()); | |
| 3645 | - return; | |
| 3646 | - } | |
| 3647 | - | |
| 3648 | - // Check for non-200 HTTP responses | |
| 3649 | - $response_code = wp_remote_retrieve_response_code($response); | |
| 3650 | - if ($response_code != 200) { | |
| 3651 | - $response_body = wp_remote_retrieve_body($response); | |
| 3652 | - //error_log(esc_html__('Loops API responded with code ', 'mxchat') . $response_code . ': ' . $response_body); | |
| 3653 | - } | |
| 3654 | -} | |
| 3655 | - | |
| 3656 | -public function mxchat_handle_pdf_discussion($message, $user_id, $session_id) { | |
| 3657 | - // Get the maximum number of pages allowed from admin settings | |
| 3658 | - $max_pages = isset($this->options['pdf_max_pages']) ? intval($this->options['pdf_max_pages']) : 69; | |
| 3659 | - | |
| 3660 | - // Retrieve options for dynamic texts | |
| 3661 | - $trigger_text = $this->options['pdf_intent_trigger_text'] ?? __("Please provide the URL to the PDF you'd like to discuss.", 'mxchat'); | |
| 3662 | - $success_text = $this->options['pdf_intent_success_text'] ?? __("I've processed the PDF. What questions do you have about it?", 'mxchat'); | |
| 3663 | - $error_text = $this->options['pdf_intent_error_text'] ?? __("Sorry, I couldn't process the PDF. Please ensure it's a valid file.", 'mxchat'); | |
| 3664 | - | |
| 3665 | - // Check for explicit request for new PDF | |
| 3666 | - $new_pdf_requested = stripos($message, 'new') !== false || | |
| 3667 | - stripos($message, 'another') !== false || | |
| 3668 | - stripos($message, 'different') !== false; | |
| 3669 | - | |
| 3670 | - // If user mentions adding/reading a PDF, set waiting flag | |
| 3671 | - if (stripos($message, 'pdf') !== false || | |
| 3672 | - stripos($message, 'document') !== false || | |
| 3673 | - stripos($message, 'read') !== false) { | |
| 3674 | - set_transient('mxchat_waiting_for_pdf_url_' . $session_id, true, HOUR_IN_SECONDS); | |
| 3675 | - $this->fallbackResponse['text'] = $trigger_text; | |
| 3676 | - return; | |
| 3677 | - } | |
| 3678 | - | |
| 3679 | - // If we're waiting for a URL or user requested new PDF | |
| 3680 | - if ($new_pdf_requested || get_transient('mxchat_waiting_for_pdf_url_' . $session_id)) { | |
| 3681 | - if (preg_match('/https?:\/\/[^\s"]+/i', $message, $matches)) { | |
| 3682 | - // Process URL... (rest of your existing URL processing code) | |
| 3683 | - } else { | |
| 3684 | - $this->fallbackResponse['text'] = $trigger_text; | |
| 3685 | - } | |
| 3686 | - return; | |
| 3687 | - } | |
| 3688 | - | |
| 3689 | - // Default to proceeding with conversation if no specific PDF action is needed | |
| 3690 | - $this->fallbackResponse['text'] = ''; | |
| 3691 | -} | |
| 3692 | - | |
| 3693 | - | |
| 3694 | -/** | |
| 3695 | - * Enhanced fetch_and_split_pdf_pages with SSRF protection | |
| 3696 | - */ | |
| 3697 | -private function fetch_and_split_pdf_pages($pdf_source, $max_pages) { | |
| 3698 | - // CLEAR DEBUG LOGGING | |
| 3699 | - //error_log("=== MXCHAT PDF PROCESSING START ==="); | |
| 3700 | - //error_log("PDF Source: " . $pdf_source); | |
| 3701 | - //error_log("Max Pages: " . $max_pages); | |
| 3702 | - //error_log("Session ID: " . ($this->session_id ?? 'not set')); | |
| 3703 | - | |
| 3704 | - // Check if Advanced Claude Toolbar is available and enabled | |
| 3705 | - $claude_available = function_exists('mxchatACT_is_advanced_claude_enabled'); | |
| 3706 | - $claude_enabled = $claude_available ? mxchatACT_is_advanced_claude_enabled() : false; | |
| 3707 | - | |
| 3708 | - //error_log("Claude Function Available: " . ($claude_available ? 'YES' : 'NO')); | |
| 3709 | - //error_log("Claude Enabled: " . ($claude_enabled ? 'YES' : 'NO')); | |
| 3710 | - | |
| 3711 | - if ($claude_available && $claude_enabled) { | |
| 3712 | - //error_log("🚀 ATTEMPTING CLAUDE PROCESSING..."); | |
| 3713 | - | |
| 3714 | - // Attempt Claude processing first | |
| 3715 | - $claude_result = apply_filters('mxchat_process_pdf_advanced', false, $pdf_source, $max_pages, $this->session_id); | |
| 3716 | - | |
| 3717 | - if ($claude_result !== false && is_array($claude_result) && !empty($claude_result)) { | |
| 3718 | - //error_log("✅ CLAUDE PROCESSING SUCCESSFUL!"); | |
| 3719 | - //error_log("Claude returned " . count($claude_result) . " processed pages"); | |
| 3720 | - | |
| 3721 | - // Log first page details for verification | |
| 3722 | - if (isset($claude_result[0])) { | |
| 3723 | - $first_page = $claude_result[0]; | |
| 3724 | - //error_log("First page enhanced: " . (isset($first_page['enhanced']) && $first_page['enhanced'] ? 'YES' : 'NO')); | |
| 3725 | - //error_log("Processing method: " . ($first_page['processing_method'] ?? 'not set')); | |
| 3726 | - //error_log("First page text preview: " . substr($first_page['text'] ?? '', 0, 100) . "..."); | |
| 3727 | - } | |
| 3728 | - | |
| 3729 | - //error_log("=== MXCHAT PDF PROCESSING END (CLAUDE) ==="); | |
| 3730 | - return $claude_result; | |
| 3731 | - } else { | |
| 3732 | - //error_log("❌ CLAUDE PROCESSING FAILED or returned invalid result"); | |
| 3733 | - //error_log("Claude result type: " . gettype($claude_result)); | |
| 3734 | - if (is_array($claude_result)) { | |
| 3735 | - //error_log("Claude result count: " . count($claude_result)); | |
| 3736 | - } | |
| 3737 | - } | |
| 3738 | - } | |
| 3739 | - | |
| 3740 | - // Fallback to basic processing | |
| 3741 | - //error_log("🔄 FALLING BACK TO BASIC PDF PROCESSING..."); | |
| 3742 | - | |
| 3743 | - $upload_dir = wp_upload_dir(); | |
| 3744 | - $temp_file = null; | |
| 3745 | - | |
| 3746 | - try { | |
| 3747 | - // Your existing basic processing code here... | |
| 3748 | - // (I'll include the key parts with debug logging) | |
| 3749 | - | |
| 3750 | - if (filter_var($pdf_source, FILTER_VALIDATE_URL)) { | |
| 3751 | - //error_log("Downloading PDF from URL..."); | |
| 3752 | - | |
| 3753 | - // SECURITY FIX: Validate URL before processing | |
| 3754 | - if (!$this->mxchat_is_safe_pdf_url($pdf_source)) { | |
| 3755 | - //error_log("❌ SECURITY: Blocked unsafe PDF URL"); | |
| 3756 | - return false; | |
| 3757 | - } | |
| 3758 | - | |
| 3759 | - $temp_file = wp_tempnam($pdf_source); | |
| 3760 | - | |
| 3761 | - // SECURITY FIX: Changed from wp_remote_get to wp_safe_remote_get | |
| 3762 | - $response = wp_safe_remote_get($pdf_source, [ | |
| 3763 | - 'timeout' => 60, | |
| 3764 | - 'headers' => ['User-Agent' => 'MxChat PDF Processor'] | |
| 3765 | - ]); | |
| 3766 | - | |
| 3767 | - if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) { | |
| 3768 | - $error_message = is_wp_error($response) ? $response->get_error_message() : 'HTTP ' . wp_remote_retrieve_response_code($response); | |
| 3769 | - //error_log("❌ BASIC PROCESSING: Failed to download PDF: " . $error_message); | |
| 3770 | - return false; | |
| 3771 | - } | |
| 3772 | - | |
| 3773 | - global $wp_filesystem; | |
| 3774 | - if (empty($wp_filesystem)) { | |
| 3775 | - require_once ABSPATH . 'wp-admin/includes/file.php'; | |
| 3776 | - WP_Filesystem(); | |
| 3777 | - } | |
| 3778 | - $wp_filesystem->put_contents($temp_file, wp_remote_retrieve_body($response), FS_CHMOD_FILE); | |
| 3779 | - //error_log("✅ PDF downloaded successfully"); | |
| 3780 | - } else { | |
| 3781 | - $temp_file = $pdf_source; | |
| 3782 | - //error_log("Using local PDF file: " . $temp_file); | |
| 3783 | - } | |
| 3784 | - | |
| 3785 | - // Parse PDF | |
| 3786 | - //error_log("Parsing PDF with basic parser..."); | |
| 3787 | - mxchat_load_pdf_parser(); | |
| 3788 | - $parser = new \Smalot\PdfParser\Parser(); | |
| 3789 | - $pdf = $parser->parseFile($temp_file); | |
| 3790 | - $pages = $pdf->getPages(); | |
| 3791 | - | |
| 3792 | - //error_log("PDF contains " . count($pages) . " pages"); | |
| 3793 | - | |
| 3794 | - if (count($pages) > $max_pages) { | |
| 3795 | - //error_log("❌ BASIC PROCESSING: Too many pages (" . count($pages) . " > " . $max_pages . ")"); | |
| 3796 | - if (filter_var($pdf_source, FILTER_VALIDATE_URL) && $temp_file) { | |
| 3797 | - unlink($temp_file); | |
| 3798 | - } | |
| 3799 | - return 'too_many_pages'; | |
| 3800 | - } | |
| 3801 | - | |
| 3802 | - $embeddings = []; | |
| 3803 | - $processed_pages = 0; | |
| 3804 | - | |
| 3805 | - foreach ($pages as $page_number => $page) { | |
| 3806 | - $text = $page->getText(); | |
| 3807 | - | |
| 3808 | - if (empty(trim($text))) { | |
| 3809 | - //error_log("Skipping empty page: " . ($page_number + 1)); | |
| 3810 | - continue; | |
| 3811 | - } | |
| 3812 | - | |
| 3813 | - $text = $this->mxchat_clean_text($text); | |
| 3814 | - | |
| 3815 | - $embedding = $this->mxchat_generate_embedding( | |
| 3816 | - __("Page ", 'mxchat') . ($page_number + 1) . ": " . $text, | |
| 3817 | - $this->options['api_key'] | |
| 3818 | - ); | |
| 3819 | - | |
| 3820 | - if ($embedding) { | |
| 3821 | - $embeddings[] = [ | |
| 3822 | - 'page_number' => $page_number + 1, | |
| 3823 | - 'embedding' => $embedding, | |
| 3824 | - 'text' => $text, | |
| 3825 | - 'enhanced' => false, // CLEARLY MARK AS BASIC | |
| 3826 | - 'processing_method' => 'basic_pdf_parser' | |
| 3827 | - ]; | |
| 3828 | - $processed_pages++; | |
| 3829 | - } | |
| 3830 | - } | |
| 3831 | - | |
| 3832 | - //error_log("✅ BASIC PROCESSING COMPLETE: " . $processed_pages . " pages processed"); | |
| 3833 | - | |
| 3834 | - // Cleanup | |
| 3835 | - if (filter_var($pdf_source, FILTER_VALIDATE_URL) && $temp_file && file_exists($temp_file)) { | |
| 3836 | - unlink($temp_file); | |
| 3837 | - } | |
| 3838 | - | |
| 3839 | - //error_log("=== MXCHAT PDF PROCESSING END (BASIC) ==="); | |
| 3840 | - return $embeddings; | |
| 3841 | - | |
| 3842 | - } catch (\Exception $e) { | |
| 3843 | - //error_log("❌ BASIC PROCESSING ERROR: " . $e->getMessage()); | |
| 3844 | - if (filter_var($pdf_source, FILTER_VALIDATE_URL) && $temp_file && file_exists($temp_file)) { | |
| 3845 | - unlink($temp_file); | |
| 3846 | - } | |
| 3847 | - //error_log("=== MXCHAT PDF PROCESSING END (ERROR) ==="); | |
| 3848 | - return false; | |
| 3849 | - } | |
| 3850 | -} | |
| 3851 | - | |
| 3852 | - | |
| 3853 | -/** | |
| 3854 | - * Validate PDF URL for security | |
| 3855 | - * Prevents SSRF attacks by blocking dangerous URLs | |
| 3856 | - */ | |
| 3857 | - | |
| 3858 | -private function mxchat_is_safe_pdf_url($url) { | |
| 3859 | - // Use WordPress core function for comprehensive validation | |
| 3860 | - // This blocks localhost, private IPs, and reserved IP ranges | |
| 3861 | - $validated_url = wp_http_validate_url($url); | |
| 3862 | - | |
| 3863 | - if ($validated_url === false) { | |
| 3864 | - return false; | |
| 3865 | - } | |
| 3866 | - | |
| 3867 | - // Additional check: only allow HTTP/HTTPS schemes | |
| 3868 | - $parsed = parse_url($url); | |
| 3869 | - if (!isset($parsed['scheme']) || !in_array($parsed['scheme'], ['http', 'https'], true)) { | |
| 3870 | - return false; | |
| 3871 | - } | |
| 3872 | - | |
| 3873 | - return true; | |
| 3874 | -} | |
| 3875 | - | |
| 3876 | - | |
| 3877 | -private function mxchat_clean_text($text) { | |
| 3878 | - // Remove excessive whitespace | |
| 3879 | - $text = preg_replace('/\s+/', ' ', $text); | |
| 3880 | - | |
| 3881 | - // Remove control characters except newlines and tabs | |
| 3882 | - $text = preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]/', '', $text); | |
| 3883 | - | |
| 3884 | - // Normalize line endings | |
| 3885 | - $text = str_replace(["\r\n", "\r"], "\n", $text); | |
| 3886 | - | |
| 3887 | - // Trim whitespace | |
| 3888 | - $text = trim($text); | |
| 3889 | - | |
| 3890 | - return $text; | |
| 3891 | -} | |
| 3892 | - | |
| 3893 | -private function find_relevant_pdf_pages($query_embedding, $embeddings) { | |
| 3894 | - //error_log(esc_html__("find_relevant_pdf_pages called.", 'mxchat')); | |
| 3895 | - | |
| 3896 | - $most_relevant = null; | |
| 3897 | - $highest_similarity = -INF; | |
| 3898 | - | |
| 3899 | - foreach ($embeddings as $page_data) { | |
| 3900 | - $similarity = $this->mxchat_calculate_cosine_similarity($query_embedding, $page_data['embedding']); | |
| 3901 | - | |
| 3902 | - if ($similarity > $highest_similarity) { | |
| 3903 | - $highest_similarity = $similarity; | |
| 3904 | - $most_relevant = $page_data['page_number']; | |
| 3905 | - } | |
| 3906 | - } | |
| 3907 | - | |
| 3908 | - if (!is_null($most_relevant)) { | |
| 3909 | - $page_numbers = range(max(1, $most_relevant - 1), min(count($embeddings), $most_relevant + 1)); | |
| 3910 | - return array_filter($embeddings, function ($page) use ($page_numbers) { | |
| 3911 | - return in_array($page['page_number'], $page_numbers); | |
| 3912 | - }); | |
| 3913 | - } | |
| 3914 | - | |
| 3915 | - return []; | |
| 3916 | -} | |
| 3917 | - | |
| 3918 | - | |
| 3919 | -public function handle_pdf_upload() { | |
| 3920 | - if (!isset($_POST['nonce']) || !MxChat_Integrator::mxchat_verify_chat_send_nonce(wp_unslash((string) $_POST['nonce']))) { | |
| 3921 | - wp_send_json_error(array('message' => esc_html__('Invalid nonce.', 'mxchat')), 403); | |
| 3922 | - } | |
| 3923 | - | |
| 3924 | - if (!isset($_FILES['pdf_file']) || !isset($_POST['session_id'])) { | |
| 3925 | - wp_send_json_error(esc_html__('Missing required parameters.', 'mxchat')); | |
| 3926 | - return; | |
| 3927 | - } | |
| 3928 | - | |
| 3929 | - // SECURITY FIX: Check if PDF uploads are enabled in settings | |
| 3930 | - $options = get_option('mxchat_options', array()); | |
| 3931 | - $show_pdf_button = isset($options['show_pdf_upload_button']) ? $options['show_pdf_upload_button'] : 'on'; | |
| 3932 | - | |
| 3933 | - if ($show_pdf_button !== 'on') { | |
| 3934 | - wp_send_json_error(esc_html__('PDF uploads are currently disabled.', 'mxchat')); | |
| 3935 | - return; | |
| 3936 | - } | |
| 3937 | - | |
| 3938 | - $file = $_FILES['pdf_file']; | |
| 3939 | - $session_id = sanitize_text_field($_POST['session_id']); | |
| 3940 | - $original_filename = sanitize_text_field($file['name']); | |
| 3941 | - | |
| 3942 | - // Update session owner if it changed (e.g. IP changed due to network switch) | |
| 3943 | - $current_user_identifier = MxChat_User::mxchat_get_user_identifier(); | |
| 3944 | - $session_owner = get_option("mxchat_session_owner_{$session_id}"); | |
| 3945 | - | |
| 3946 | - if (!$session_owner || $session_owner !== $current_user_identifier) { | |
| 3947 | - update_option("mxchat_session_owner_{$session_id}", $current_user_identifier, 'no'); | |
| 3948 | - } | |
| 3949 | - | |
| 3950 | - $file_type = wp_check_filetype($file['name'], ['pdf' => 'application/pdf']); | |
| 3951 | - if ($file_type['type'] !== 'application/pdf') { | |
| 3952 | - wp_send_json_error(esc_html__('Invalid file type. Only PDF files are allowed.', 'mxchat')); | |
| 3953 | - return; | |
| 3954 | - } | |
| 3955 | - | |
| 3956 | - $upload_dir = wp_upload_dir(); | |
| 3957 | - | |
| 3958 | - // SECURITY FIX: Generate random filename without exposing session_id | |
| 3959 | - $random_string = wp_generate_password(20, false, false); // 20 char alphanumeric string | |
| 3960 | - $pdf_filename = 'mxchat_' . $random_string . '_' . time() . '.pdf'; | |
| 3961 | - $pdf_path = $upload_dir['path'] . '/' . $pdf_filename; | |
| 3962 | - | |
| 3963 | - if (!move_uploaded_file($file['tmp_name'], $pdf_path)) { | |
| 3964 | - wp_send_json_error(esc_html__('Failed to upload file.', 'mxchat')); | |
| 3965 | - return; | |
| 3966 | - } | |
| 3967 | - | |
| 3968 | - $this->clear_pdf_transients($session_id); | |
| 3969 | - | |
| 3970 | - $max_pages = isset($this->options['pdf_max_pages']) ? intval($this->options['pdf_max_pages']) : 69; | |
| 3971 | - $embeddings = $this->fetch_and_split_pdf_pages($pdf_path, $max_pages); | |
| 3972 | - | |
| 3973 | - if ($embeddings === 'too_many_pages') { | |
| 3974 | - unlink($pdf_path); | |
| 3975 | - $error_message = sprintf( | |
| 3976 | - $this->options['pdf_intent_error_text'] ?? | |
| 3977 | - esc_html__("The provided PDF exceeds the maximum allowed limit of %d pages. Please provide a smaller document.", 'mxchat'), | |
| 3978 | - $max_pages | |
| 3979 | - ); | |
| 3980 | - wp_send_json_error($error_message); | |
| 3981 | - return; | |
| 3982 | - } | |
| 3983 | - | |
| 3984 | - if ($embeddings === false || empty($embeddings)) { | |
| 3985 | - unlink($pdf_path); | |
| 3986 | - $error_message = $this->options['pdf_intent_error_text'] ?? | |
| 3987 | - esc_html__('The uploaded PDF appears to be empty or contains unsupported content.', 'mxchat'); | |
| 3988 | - wp_send_json_error($error_message); | |
| 3989 | - return; | |
| 3990 | - } | |
| 3991 | - | |
| 3992 | - if (!empty($embeddings)) { | |
| 3993 | - // Store the mapping between session and the random filename | |
| 3994 | - set_transient('mxchat_pdf_url_' . $session_id, $pdf_path, HOUR_IN_SECONDS); | |
| 3995 | - set_transient('mxchat_pdf_filename_' . $session_id, $original_filename, HOUR_IN_SECONDS); | |
| 3996 | - set_transient('mxchat_pdf_embeddings_' . $session_id, $embeddings, HOUR_IN_SECONDS); | |
| 3997 | - set_transient('mxchat_include_pdf_in_context_' . $session_id, true, HOUR_IN_SECONDS); | |
| 3998 | - | |
| 3999 | - $success_message = $this->options['pdf_intent_success_text'] ?? | |
| 4000 | - esc_html__("I've processed the PDF. What questions do you have about it?", 'mxchat'); | |
| 4001 | - | |
| 4002 | - wp_send_json_success([ | |
| 4003 | - 'message' => $success_message, | |
| 4004 | - 'filename' => $original_filename | |
| 4005 | - ]); | |
| 4006 | - return; | |
| 4007 | - } | |
| 4008 | - | |
| 4009 | - unlink($pdf_path); | |
| 4010 | - $error_message = $this->options['pdf_intent_error_text'] ?? | |
| 4011 | - esc_html__('Sorry, I couldn\'t process the PDF. Please ensure it\'s a valid file.', 'mxchat'); | |
| 4012 | - wp_send_json_error($error_message); | |
| 4013 | - return; | |
| 4014 | -} | |
| 4015 | -public function handle_pdf_remove() { | |
| 4016 | - if (!isset($_POST['nonce']) || !MxChat_Integrator::mxchat_verify_chat_send_nonce(wp_unslash((string) $_POST['nonce']))) { | |
| 4017 | - wp_send_json_error(array('message' => esc_html__('Invalid nonce.', 'mxchat')), 403); | |
| 4018 | - } | |
| 4019 | - | |
| 4020 | - if (empty($_POST['session_id'])) { | |
| 4021 | - wp_send_json_error(esc_html__('Session ID missing.', 'mxchat')); | |
| 4022 | - wp_die(); | |
| 4023 | - } | |
| 4024 | - | |
| 4025 | - $session_id = sanitize_text_field($_POST['session_id']); | |
| 4026 | - $pdf_path = get_transient('mxchat_pdf_url_' . $session_id); | |
| 4027 | - | |
| 4028 | - if ($pdf_path && file_exists($pdf_path)) { | |
| 4029 | - unlink($pdf_path); | |
| 4030 | - } | |
| 4031 | - | |
| 4032 | - $this->clear_pdf_transients($session_id); | |
| 4033 | - | |
| 4034 | - wp_send_json_success([ | |
| 4035 | - 'message' => esc_html__('PDF removed successfully.', 'mxchat') | |
| 4036 | - ]); | |
| 4037 | - wp_die(); | |
| 4038 | -} | |
| 4039 | - | |
| 4040 | - | |
| 4041 | -function mxchat_fetch_new_messages() { | |
| 4042 | - $session_id = sanitize_text_field($_POST['session_id']); | |
| 4043 | - $last_seen_id = sanitize_text_field($_POST['last_seen_id']); | |
| 4044 | - $persistence_enabled = $_POST['persistence_enabled'] === 'true'; | |
| 4045 | - $initial_timestamp = isset($_POST['initial_timestamp']) ? intval($_POST['initial_timestamp']) : 0; | |
| 4046 | - | |
| 4047 | - if (empty($session_id)) { | |
| 4048 | - //error_log(esc_html__('Fetch new messages error: Session ID missing.', 'mxchat')); | |
| 4049 | - wp_send_json_error(['message' => esc_html__('Session ID missing.', 'mxchat')]); | |
| 4050 | - wp_die(); | |
| 4051 | - } | |
| 4052 | - | |
| 4053 | - $history = get_option("mxchat_history_{$session_id}", []); | |
| 4054 | - | |
| 4055 | - //error_log("MxChat WhatsApp DEBUG: Fetch new messages for session {$session_id}"); | |
| 4056 | - //error_log("MxChat WhatsApp DEBUG: last_seen_id = " . var_export($last_seen_id, true)); | |
| 4057 | - //error_log("MxChat WhatsApp DEBUG: History count = " . count($history)); | |
| 4058 | - //error_log("MxChat WhatsApp DEBUG: Full history = " . print_r($history, true)); | |
| 4059 | - | |
| 4060 | - $new_messages = array_filter($history, function ($message) use ($last_seen_id, $persistence_enabled, $initial_timestamp) { | |
| 4061 | - //error_log("MxChat WhatsApp DEBUG: Checking message - ID: " . ($message['id'] ?? 'NO_ID') . ", Role: " . ($message['role'] ?? 'NO_ROLE')); | |
| 4062 | - | |
| 4063 | - // If persistence is enabled, show all new messages | |
| 4064 | - if ($persistence_enabled) { | |
| 4065 | - $has_id = !empty($message['id']); | |
| 4066 | - $is_agent = $message['role'] === 'agent'; | |
| 4067 | - | |
| 4068 | - // If last_seen_id is empty, 'NaN', or invalid, show all agent messages | |
| 4069 | - if (empty($last_seen_id) || $last_seen_id === 'NaN' || $last_seen_id === 'undefined') { | |
| 4070 | - $is_newer = true; | |
| 4071 | - } else { | |
| 4072 | - $is_newer = strcmp($message['id'] ?? '', $last_seen_id) > 0; | |
| 4073 | - } | |
| 4074 | - | |
| 4075 | - //error_log("MxChat WhatsApp DEBUG: has_id={$has_id}, is_newer={$is_newer}, is_agent={$is_agent}"); | |
| 4076 | - | |
| 4077 | - return $has_id && $is_newer && $is_agent; | |
| 4078 | - } | |
| 4079 | - | |
| 4080 | - // If persistence is disabled, only show messages after initial timestamp | |
| 4081 | - return !empty($message['id']) && | |
| 4082 | - $message['role'] === 'agent' && | |
| 4083 | - $message['timestamp'] > $initial_timestamp; | |
| 4084 | - }); | |
| 4085 | - | |
| 4086 | - //error_log("MxChat WhatsApp DEBUG: Filtered messages count = " . count($new_messages)); | |
| 4087 | - | |
| 4088 | - // Include current chat mode so frontend can detect agent→AI transitions | |
| 4089 | - $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai'); | |
| 4090 | - | |
| 4091 | - wp_send_json_success([ | |
| 4092 | - 'new_messages' => array_values($new_messages), | |
| 4093 | - 'chat_mode' => $chat_mode | |
| 4094 | - ]); | |
| 4095 | - wp_die(); | |
| 4096 | -} | |
| 4097 | -public function mxchat_live_agent_handover($message, $user_id, $session_id) { | |
| 4098 | - // First check if live agents are available | |
| 4099 | - $live_agent_available = $this->options['live_agent_status'] ?? 'off'; | |
| 4100 | - if ($live_agent_available !== 'on') { | |
| 4101 | - $away_message = $this->options['live_agent_away_message'] ?? 'Sorry, live agents are currently unavailable. I can continue helping you as an AI assistant.'; | |
| 4102 | - $this->fallbackResponse = [ | |
| 4103 | - 'text' => $away_message, | |
| 4104 | - 'html' => '', | |
| 4105 | - 'images' => [], | |
| 4106 | - 'chat_mode' => 'ai' | |
| 4107 | - ]; | |
| 4108 | - wp_send_json([ | |
| 4109 | - 'text' => $away_message, | |
| 4110 | - 'html' => '', | |
| 4111 | - 'chat_mode' => 'ai', | |
| 4112 | - 'session_id' => $session_id | |
| 4113 | - ]); | |
| 4114 | - wp_die(); | |
| 4115 | - } | |
| 4116 | - | |
| 4117 | - $slack_bot_token = $this->options['live_agent_bot_token'] ?? ''; | |
| 4118 | - | |
| 4119 | - if (empty($slack_bot_token)) { | |
| 4120 | - return false; | |
| 4121 | - } | |
| 4122 | - | |
| 4123 | - // Check if channel already exists for this session | |
| 4124 | - $channel_id = get_option("mxchat_channel_{$session_id}", ''); | |
| 4125 | - | |
| 4126 | - if (empty($channel_id)) { | |
| 4127 | - // Create new channel with session ID as name | |
| 4128 | - $channel_name = $this->generate_channel_name($session_id); | |
| 4129 | - | |
| 4130 | - //error_log("Attempting to create channel: $channel_name"); | |
| 4131 | - | |
| 4132 | - $response = wp_remote_post('https://slack.com/api/conversations.create', [ | |
| 4133 | - 'headers' => [ | |
| 4134 | - 'Content-Type' => 'application/json', | |
| 4135 | - 'Authorization' => 'Bearer ' . $slack_bot_token | |
| 4136 | - ], | |
| 4137 | - 'body' => json_encode([ | |
| 4138 | - 'name' => $channel_name, | |
| 4139 | - 'is_private' => false // Public channel - anyone in workspace can join | |
| 4140 | - ]) | |
| 4141 | - ]); | |
| 4142 | - | |
| 4143 | - if (!is_wp_error($response)) { | |
| 4144 | - $response_body = wp_remote_retrieve_body($response); | |
| 4145 | - $response_data = json_decode($response_body, true); | |
| 4146 | - | |
| 4147 | - //error_log("Channel creation response: " . $response_body); | |
| 4148 | - | |
| 4149 | - if (isset($response_data['ok']) && $response_data['ok']) { | |
| 4150 | - $channel_id = $response_data['channel']['id']; | |
| 4151 | - $actual_channel_name = $response_data['channel']['name'] ?? 'unknown'; | |
| 4152 | - //error_log("Channel created successfully: ID=$channel_id, Name=$actual_channel_name"); | |
| 4153 | - update_option("mxchat_channel_{$session_id}", $channel_id); | |
| 4154 | - | |
| 4155 | - // Auto-invite agents to the channel | |
| 4156 | - $agent_user_ids = $this->options['live_agent_user_ids'] ?? ''; | |
| 4157 | - | |
| 4158 | - if (!empty($agent_user_ids)) { | |
| 4159 | - // Parse user IDs (one per line) | |
| 4160 | - $user_ids = array_filter(array_map('trim', explode("\n", $agent_user_ids))); | |
| 4161 | - | |
| 4162 | - foreach ($user_ids as $user_id_to_invite) { | |
| 4163 | - //error_log("Inviting user to channel: $user_id_to_invite"); | |
| 4164 | - | |
| 4165 | - $invite_response = wp_remote_post('https://slack.com/api/conversations.invite', [ | |
| 4166 | - 'headers' => [ | |
| 4167 | - 'Content-Type' => 'application/json', | |
| 4168 | - 'Authorization' => 'Bearer ' . $slack_bot_token | |
| 4169 | - ], | |
| 4170 | - 'body' => json_encode([ | |
| 4171 | - 'channel' => $channel_id, | |
| 4172 | - 'users' => $user_id_to_invite | |
| 4173 | - ]) | |
| 4174 | - ]); | |
| 4175 | - | |
| 4176 | - if (!is_wp_error($invite_response)) { | |
| 4177 | - $invite_body = wp_remote_retrieve_body($invite_response); | |
| 4178 | - $invite_data = json_decode($invite_body, true); | |
| 4179 | - //error_log("Invite response for $user_id_to_invite: " . $invite_body); | |
| 4180 | - | |
| 4181 | - if (isset($invite_data['ok']) && $invite_data['ok']) { | |
| 4182 | - //error_log("Successfully invited user $user_id_to_invite to channel"); | |
| 4183 | - } else { | |
| 4184 | - //error_log("Failed to invite user $user_id_to_invite: " . ($invite_data['error'] ?? 'Unknown error')); | |
| 4185 | - } | |
| 4186 | - } else { | |
| 4187 | - //error_log("WP Error inviting user $user_id_to_invite: " . $invite_response->get_error_message()); | |
| 4188 | - } | |
| 4189 | - } | |
| 4190 | - } else { | |
| 4191 | - //error_log("No agent user IDs configured for auto-invite"); | |
| 4192 | - } | |
| 4193 | - } else { | |
| 4194 | - //error_log("Channel creation failed: " . ($response_data['error'] ?? 'Unknown error')); | |
| 4195 | - } | |
| 4196 | - } else { | |
| 4197 | - //error_log("WP Error creating channel: " . $response->get_error_message()); | |
| 4198 | - } | |
| 4199 | - | |
| 4200 | - if (empty($channel_id)) { | |
| 4201 | - return false; // Failed to create channel | |
| 4202 | - } | |
| 4203 | - } | |
| 4204 | - | |
| 4205 | - // Get recent chat history | |
| 4206 | - $history = get_option("mxchat_history_{$session_id}", []); | |
| 4207 | - $recent_history = array_slice($history, -5); | |
| 4208 | - | |
| 4209 | - // Format conversation context | |
| 4210 | - $conversation_context = ""; | |
| 4211 | - if (!empty($recent_history)) { | |
| 4212 | - $conversation_context = "*Recent Conversation:*\n"; | |
| 4213 | - foreach ($recent_history as $hist_message) { | |
| 4214 | - $role_display = $hist_message['role'] === 'user' ? 'User' : 'AI'; | |
| 4215 | - $conversation_context .= ">{$role_display}: {$hist_message['content']}\n"; | |
| 4216 | - } | |
| 4217 | - $conversation_context .= "\n"; | |
| 4218 | - } | |
| 4219 | - | |
| 4220 | - update_option("mxchat_mode_{$session_id}", 'agent'); | |
| 4221 | - | |
| 4222 | - // Send message to channel | |
| 4223 | - $channel_message = "🔔 *New Live Agent Request*\n\n"; | |
| 4224 | - $channel_message .= "*Session ID:* `{$session_id}`\n"; | |
| 4225 | - $channel_message .= "*User ID:* `{$user_id}`\n"; | |
| 4226 | - | |
| 4227 | - // Surface the captured visitor identity so the agent knows who they're talking to — | |
| 4228 | - // guest User IDs are 0, but the pre-chat gate / login / transcript often has name+email (plan-e2195b). | |
| 4229 | - $visitor = $this->mxchat_get_visitor_identity($session_id); | |
| 4230 | - if (!empty($visitor['name']) && !empty($visitor['email'])) { | |
| 4231 | - $channel_message .= "*Visitor:* {$visitor['name']} <{$visitor['email']}>\n"; | |
| 4232 | - } elseif (!empty($visitor['email'])) { | |
| 4233 | - $channel_message .= "*Visitor:* <{$visitor['email']}>\n"; | |
| 4234 | - } elseif (!empty($visitor['name'])) { | |
| 4235 | - $channel_message .= "*Visitor:* {$visitor['name']}\n"; | |
| 4236 | - } | |
| 4237 | - $channel_message .= "\n"; | |
| 4238 | - | |
| 4239 | - if (!empty($conversation_context)) { | |
| 4240 | - $channel_message .= $conversation_context; | |
| 4241 | - } | |
| 4242 | - | |
| 4243 | - $channel_message .= "*Current Message:*\n{$message}\n\n"; | |
| 4244 | - $channel_message .= "_Reply directly in this channel - all messages will go to the user_"; | |
| 4245 | - | |
| 4246 | - wp_remote_post('https://slack.com/api/chat.postMessage', [ | |
| 4247 | - 'headers' => [ | |
| 4248 | - 'Content-Type' => 'application/json', | |
| 4249 | - 'Authorization' => 'Bearer ' . $slack_bot_token | |
| 4250 | - ], | |
| 4251 | - 'body' => json_encode([ | |
| 4252 | - 'channel' => $channel_id, | |
| 4253 | - 'text' => $channel_message, | |
| 4254 | - 'mrkdwn' => true | |
| 4255 | - ]) | |
| 4256 | - ]); | |
| 4257 | - | |
| 4258 | - $success_message = $this->options['live_agent_notification_message'] ?? 'Live agent has been notified.'; | |
| 4259 | - $this->mxchat_save_chat_message($session_id, 'bot', $success_message); | |
| 4260 | - | |
| 4261 | - $this->fallbackResponse = [ | |
| 4262 | - 'text' => $success_message, | |
| 4263 | - 'html' => '', | |
| 4264 | - 'images' => [], | |
| 4265 | - 'chat_mode' => 'agent' | |
| 4266 | - ]; | |
| 4267 | - | |
| 4268 | - wp_send_json([ | |
| 4269 | - 'success' => true, | |
| 4270 | - 'text' => $success_message, | |
| 4271 | - 'html' => '', | |
| 4272 | - 'chat_mode' => 'agent', | |
| 4273 | - 'session_id' => $session_id, | |
| 4274 | - 'fallbackResponse' => $this->fallbackResponse | |
| 4275 | - ]); | |
| 4276 | - wp_die(); | |
| 4277 | -} | |
| 4278 | - | |
| 4279 | -private function generate_channel_name($session_id) { | |
| 4280 | - $email = null; | |
| 4281 | - $name = null; | |
| 4282 | - | |
| 4283 | - // 1. First priority: Check if user is logged in and get their info | |
| 4284 | - if (is_user_logged_in()) { | |
| 4285 | - $current_user = wp_get_current_user(); | |
| 4286 | - if (!empty($current_user->user_email)) { | |
| 4287 | - $email = $current_user->user_email; | |
| 4288 | - //error_log("[DEBUG] Using logged-in user email for channel: {$email}"); | |
| 4289 | - } | |
| 4290 | - if (!empty($current_user->display_name)) { | |
| 4291 | - $name = $current_user->display_name; | |
| 4292 | - //error_log("[DEBUG] Using logged-in user name for channel: {$name}"); | |
| 4293 | - } | |
| 4294 | - } | |
| 4295 | - | |
| 4296 | - // 2. Second priority: Check for saved email/name from "require email to chat" option | |
| 4297 | - if (empty($email)) { | |
| 4298 | - $email_option_key = "mxchat_email_{$session_id}"; | |
| 4299 | - $saved_email = get_option($email_option_key); | |
| 4300 | - if (!empty($saved_email)) { | |
| 4301 | - $email = $saved_email; | |
| 4302 | - //error_log("[DEBUG] Using saved email from session for channel: {$email}"); | |
| 4303 | - } | |
| 4304 | - } | |
| 4305 | - | |
| 4306 | - if (empty($name)) { | |
| 4307 | - $name_option_key = "mxchat_name_{$session_id}"; | |
| 4308 | - $saved_name = get_option($name_option_key); | |
| 4309 | - if (!empty($saved_name)) { | |
| 4310 | - $name = $saved_name; | |
| 4311 | - //error_log("[DEBUG] Using saved name from session for channel: {$name}"); | |
| 4312 | - } | |
| 4313 | - } | |
| 4314 | - | |
| 4315 | - // 3. Third priority: Check existing chat transcript for email/name | |
| 4316 | - if (empty($email) || empty($name)) { | |
| 4317 | - global $wpdb; | |
| 4318 | - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; | |
| 4319 | - $existing_data = $wpdb->get_row($wpdb->prepare( | |
| 4320 | - "SELECT user_email, user_name FROM $table_name WHERE session_id = %s AND (user_email IS NOT NULL OR user_name IS NOT NULL) LIMIT 1", | |
| 4321 | - $session_id | |
| 4322 | - )); | |
| 4323 | - | |
| 4324 | - if ($existing_data) { | |
| 4325 | - if (empty($email) && !empty($existing_data->user_email)) { | |
| 4326 | - $email = $existing_data->user_email; | |
| 4327 | - //error_log("[DEBUG] Using email from chat transcript for channel: {$email}"); | |
| 4328 | - } | |
| 4329 | - if (empty($name) && !empty($existing_data->user_name)) { | |
| 4330 | - $name = $existing_data->user_name; | |
| 4331 | - //error_log("[DEBUG] Using name from chat transcript for channel: {$name}"); | |
| 4332 | - } | |
| 4333 | - } | |
| 4334 | - } | |
| 4335 | - | |
| 4336 | - // 4. Generate channel name based on priority: Name > Email > Session ID | |
| 4337 | - $channel_name = ''; | |
| 4338 | - | |
| 4339 | - if (!empty($name)) { | |
| 4340 | - // Convert name to valid Slack channel name | |
| 4341 | - $base_name = strtolower(trim($name)); | |
| 4342 | - // Replace spaces and invalid characters | |
| 4343 | - $base_name = preg_replace('/[^a-z0-9\s]/', '', $base_name); | |
| 4344 | - $base_name = preg_replace('/\s+/', '-', $base_name); | |
| 4345 | - $base_name = trim($base_name, '-'); | |
| 4346 | - | |
| 4347 | - // Get last 4 characters of session ID for uniqueness | |
| 4348 | - $session_suffix = substr($session_id, -4); | |
| 4349 | - $channel_name = 'chat-' . $base_name . '-' . strtolower($session_suffix); | |
| 4350 | - | |
| 4351 | - // Slack channel names have a 21 character limit | |
| 4352 | - if (strlen($channel_name) > 21) { | |
| 4353 | - // Calculate available space for name (21 - 'chat-' - '-' - session_suffix) | |
| 4354 | - $available_space = 21 - 5 - 1 - strlen($session_suffix); // 'chat-' = 5, '-' = 1 | |
| 4355 | - $truncated_name = substr($base_name, 0, $available_space); | |
| 4356 | - $truncated_name = rtrim($truncated_name, '-'); // Remove trailing hyphen | |
| 4357 | - $channel_name = 'chat-' . $truncated_name . '-' . strtolower($session_suffix); | |
| 4358 | - } | |
| 4359 | - | |
| 4360 | - //error_log("[DEBUG] Using name for channel: {$channel_name} (from name: {$name})"); | |
| 4361 | - | |
| 4362 | - } elseif (!empty($email)) { | |
| 4363 | - // Convert email to valid Slack channel name (your existing logic) | |
| 4364 | - $channel_name = 'chat-' . strtolower(str_replace(['@', '.', '+', '_'], ['-at-', '-', '-plus-', '-'], $email)); | |
| 4365 | - // Remove any remaining invalid characters | |
| 4366 | - $channel_name = preg_replace('/[^a-z0-9\-]/', '', $channel_name); | |
| 4367 | - // Ensure it doesn't end with a hyphen | |
| 4368 | - $channel_name = rtrim($channel_name, '-'); | |
| 4369 | - // Slack channel names have a 21 character limit, so truncate if needed | |
| 4370 | - if (strlen($channel_name) > 21) { | |
| 4371 | - $channel_name = substr($channel_name, 0, 21); | |
| 4372 | - $channel_name = rtrim($channel_name, '-'); // Remove trailing hyphen if truncation created one | |
| 4373 | - } | |
| 4374 | - | |
| 4375 | - //error_log("[DEBUG] Using email for channel: {$channel_name} (from email: {$email})"); | |
| 4376 | - | |
| 4377 | - } else { | |
| 4378 | - // Fallback to session ID if no name or email found | |
| 4379 | - $channel_name = 'chat-' . strtolower(preg_replace('/[^a-zA-Z0-9]/', '', $session_id)); | |
| 4380 | - //error_log("[DEBUG] No name or email found, using session ID for channel: {$channel_name}"); | |
| 4381 | - } | |
| 4382 | - | |
| 4383 | - // Final validation - ensure channel name meets Slack requirements | |
| 4384 | - if (strlen($channel_name) > 21) { | |
| 4385 | - $channel_name = substr($channel_name, 0, 21); | |
| 4386 | - $channel_name = rtrim($channel_name, '-'); | |
| 4387 | - } | |
| 4388 | - | |
| 4389 | - //error_log("[DEBUG] Generated channel name: {$channel_name}"); | |
| 4390 | - return $channel_name; | |
| 4391 | -} | |
| 4392 | - | |
| 4393 | -/** | |
| 4394 | - * Telegram Live Agent Handover | |
| 4395 | - * Creates a forum topic in the Telegram group and notifies agents | |
| 4396 | - */ | |
| 4397 | -public function mxchat_telegram_live_agent_handover($message, $user_id, $session_id) { | |
| 4398 | - // Check if Telegram agents are available | |
| 4399 | - $telegram_available = $this->options['telegram_status'] ?? 'off'; | |
| 4400 | - if ($telegram_available !== 'on') { | |
| 4401 | - $away_message = $this->options['telegram_away_message'] ?? 'Sorry, live agents are currently unavailable. I can continue helping you as an AI assistant.'; | |
| 4402 | - $this->fallbackResponse = [ | |
| 4403 | - 'text' => $away_message, | |
| 4404 | - 'html' => '', | |
| 4405 | - 'images' => [], | |
| 4406 | - 'chat_mode' => 'ai' | |
| 4407 | - ]; | |
| 4408 | - wp_send_json([ | |
| 4409 | - 'text' => $away_message, | |
| 4410 | - 'html' => '', | |
| 4411 | - 'chat_mode' => 'ai', | |
| 4412 | - 'session_id' => $session_id | |
| 4413 | - ]); | |
| 4414 | - wp_die(); | |
| 4415 | - } | |
| 4416 | - | |
| 4417 | - $telegram_bot_token = $this->options['telegram_bot_token'] ?? ''; | |
| 4418 | - $telegram_group_id = $this->options['telegram_group_id'] ?? ''; | |
| 4419 | - | |
| 4420 | - if (empty($telegram_bot_token) || empty($telegram_group_id)) { | |
| 4421 | - return false; | |
| 4422 | - } | |
| 4423 | - | |
| 4424 | - // Check if topic already exists for this session | |
| 4425 | - $topic_id = get_option("mxchat_telegram_topic_{$session_id}", ''); | |
| 4426 | - | |
| 4427 | - if (empty($topic_id)) { | |
| 4428 | - // Generate topic name | |
| 4429 | - $topic_name = $this->generate_telegram_topic_name($session_id); | |
| 4430 | - | |
| 4431 | - // Random icon color (Telegram forum topic colors) | |
| 4432 | - $icon_colors = [0x6FB9F0, 0xFFD67E, 0xCB86DB, 0x8EEE98, 0xFF93B2, 0xFB6F5F]; | |
| 4433 | - $icon_color = $icon_colors[array_rand($icon_colors)]; | |
| 4434 | - | |
| 4435 | - // Create forum topic | |
| 4436 | - $response = wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/createForumTopic", [ | |
| 4437 | - 'headers' => ['Content-Type' => 'application/json'], | |
| 4438 | - 'body' => json_encode([ | |
| 4439 | - 'chat_id' => $telegram_group_id, | |
| 4440 | - 'name' => $topic_name, | |
| 4441 | - 'icon_color' => $icon_color | |
| 4442 | - ]) | |
| 4443 | - ]); | |
| 4444 | - | |
| 4445 | - if (!is_wp_error($response)) { | |
| 4446 | - $response_body = wp_remote_retrieve_body($response); | |
| 4447 | - $response_data = json_decode($response_body, true); | |
| 4448 | - | |
| 4449 | - if (isset($response_data['ok']) && $response_data['ok']) { | |
| 4450 | - $topic_id = $response_data['result']['message_thread_id']; | |
| 4451 | - update_option("mxchat_telegram_topic_{$session_id}", $topic_id); | |
| 4452 | - update_option("mxchat_telegram_group_{$session_id}", $telegram_group_id); | |
| 4453 | - } | |
| 4454 | - } | |
| 4455 | - | |
| 4456 | - if (empty($topic_id)) { | |
| 4457 | - return false; // Failed to create topic | |
| 4458 | - } | |
| 4459 | - } | |
| 4460 | - | |
| 4461 | - // Get recent chat history | |
| 4462 | - $history = get_option("mxchat_history_{$session_id}", []); | |
| 4463 | - $recent_history = array_slice($history, -5); | |
| 4464 | - | |
| 4465 | - // Format conversation context for Telegram (HTML format) | |
| 4466 | - $conversation_context = ""; | |
| 4467 | - if (!empty($recent_history)) { | |
| 4468 | - $conversation_context = "<b>Recent Conversation:</b>\n"; | |
| 4469 | - foreach ($recent_history as $hist_message) { | |
| 4470 | - $role_display = $hist_message['role'] === 'user' ? '👤 User' : '🤖 AI'; | |
| 4471 | - $escaped_content = htmlspecialchars($hist_message['content'], ENT_QUOTES, 'UTF-8'); | |
| 4472 | - $conversation_context .= "{$role_display}: {$escaped_content}\n"; | |
| 4473 | - } | |
| 4474 | - $conversation_context .= "\n"; | |
| 4475 | - } | |
| 4476 | - | |
| 4477 | - // Get user info | |
| 4478 | - $user_email = get_option("mxchat_email_{$session_id}", 'Not provided'); | |
| 4479 | - $user_name = get_option("mxchat_name_{$session_id}", 'Anonymous'); | |
| 4480 | - | |
| 4481 | - // Update session mode | |
| 4482 | - update_option("mxchat_mode_{$session_id}", 'agent'); | |
| 4483 | - | |
| 4484 | - // Send initial message to topic | |
| 4485 | - $escaped_message = htmlspecialchars($message, ENT_QUOTES, 'UTF-8'); | |
| 4486 | - $topic_message = "🔔 <b>New Live Agent Request</b>\n\n"; | |
| 4487 | - $topic_message .= "<b>Session ID:</b> <code>{$session_id}</code>\n"; | |
| 4488 | - $topic_message .= "<b>User:</b> {$user_name}\n"; | |
| 4489 | - $topic_message .= "<b>Email:</b> {$user_email}\n\n"; | |
| 4490 | - | |
| 4491 | - if (!empty($conversation_context)) { | |
| 4492 | - $topic_message .= $conversation_context; | |
| 4493 | - } | |
| 4494 | - | |
| 4495 | - $topic_message .= "<b>Current Message:</b>\n{$escaped_message}\n\n"; | |
| 4496 | - $topic_message .= "<i>Reply in this topic - messages will be sent to the user</i>\n"; | |
| 4497 | - $topic_message .= "<i>Type #close, #end, #disconnect, or #done to end the session</i>"; | |
| 4498 | - | |
| 4499 | - wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/sendMessage", [ | |
| 4500 | - 'headers' => ['Content-Type' => 'application/json'], | |
| 4501 | - 'body' => json_encode([ | |
| 4502 | - 'chat_id' => $telegram_group_id, | |
| 4503 | - 'message_thread_id' => $topic_id, | |
| 4504 | - 'text' => $topic_message, | |
| 4505 | - 'parse_mode' => 'HTML' | |
| 4506 | - ]) | |
| 4507 | - ]); | |
| 4508 | - | |
| 4509 | - $success_message = $this->options['telegram_notification_message'] ?? "I've notified a support agent. Please allow a moment for them to respond."; | |
| 4510 | - $this->mxchat_save_chat_message($session_id, 'bot', $success_message); | |
| 4511 | - | |
| 4512 | - $this->fallbackResponse = [ | |
| 4513 | - 'text' => $success_message, | |
| 4514 | - 'html' => '', | |
| 4515 | - 'images' => [], | |
| 4516 | - 'chat_mode' => 'agent' | |
| 4517 | - ]; | |
| 4518 | - | |
| 4519 | - wp_send_json([ | |
| 4520 | - 'success' => true, | |
| 4521 | - 'text' => $success_message, | |
| 4522 | - 'html' => '', | |
| 4523 | - 'chat_mode' => 'agent', | |
| 4524 | - 'session_id' => $session_id, | |
| 4525 | - 'fallbackResponse' => $this->fallbackResponse | |
| 4526 | - ]); | |
| 4527 | - wp_die(); | |
| 4528 | -} | |
| 4529 | - | |
| 4530 | -/** | |
| 4531 | - * Generate topic name for Telegram forum | |
| 4532 | - */ | |
| 4533 | -private function generate_telegram_topic_name($session_id) { | |
| 4534 | - $name = null; | |
| 4535 | - $email = null; | |
| 4536 | - | |
| 4537 | - // Check logged in user | |
| 4538 | - if (is_user_logged_in()) { | |
| 4539 | - $current_user = wp_get_current_user(); | |
| 4540 | - if (!empty($current_user->display_name)) { | |
| 4541 | - $name = $current_user->display_name; | |
| 4542 | - } | |
| 4543 | - if (!empty($current_user->user_email)) { | |
| 4544 | - $email = $current_user->user_email; | |
| 4545 | - } | |
| 4546 | - } | |
| 4547 | - | |
| 4548 | - // Check session data | |
| 4549 | - if (empty($name)) { | |
| 4550 | - $name = get_option("mxchat_name_{$session_id}"); | |
| 4551 | - } | |
| 4552 | - if (empty($email)) { | |
| 4553 | - $email = get_option("mxchat_email_{$session_id}"); | |
| 4554 | - } | |
| 4555 | - | |
| 4556 | - // Generate topic name | |
| 4557 | - $session_suffix = substr($session_id, -6); | |
| 4558 | - | |
| 4559 | - if (!empty($name)) { | |
| 4560 | - // Clean name for topic (max 128 chars in Telegram) | |
| 4561 | - $clean_name = preg_replace('/[^\p{L}\p{N}\s\-]/u', '', $name); | |
| 4562 | - $clean_name = trim($clean_name); | |
| 4563 | - if (strlen($clean_name) > 50) { | |
| 4564 | - $clean_name = substr($clean_name, 0, 50); | |
| 4565 | - } | |
| 4566 | - return "Chat - {$clean_name} ({$session_suffix})"; | |
| 4567 | - } elseif (!empty($email)) { | |
| 4568 | - // Use email prefix | |
| 4569 | - $email_prefix = explode('@', $email)[0]; | |
| 4570 | - if (strlen($email_prefix) > 30) { | |
| 4571 | - $email_prefix = substr($email_prefix, 0, 30); | |
| 4572 | - } | |
| 4573 | - return "Chat - {$email_prefix} ({$session_suffix})"; | |
| 4574 | - } | |
| 4575 | - | |
| 4576 | - return "Chat - {$session_suffix}"; | |
| 4577 | -} | |
| 4578 | - | |
| 4579 | -/** | |
| 4580 | - * Send user message to Telegram agent | |
| 4581 | - */ | |
| 4582 | -public function mxchat_send_user_message_to_telegram_agent($message, $user_id, $session_id) { | |
| 4583 | - $telegram_bot_token = $this->options['telegram_bot_token'] ?? ''; | |
| 4584 | - $topic_id = get_option("mxchat_telegram_topic_{$session_id}", ''); | |
| 4585 | - $group_id = get_option("mxchat_telegram_group_{$session_id}", ''); | |
| 4586 | - | |
| 4587 | - if (empty($telegram_bot_token) || empty($topic_id) || empty($group_id)) { | |
| 4588 | - return false; | |
| 4589 | - } | |
| 4590 | - | |
| 4591 | - $escaped_message = htmlspecialchars($message, ENT_QUOTES, 'UTF-8'); | |
| 4592 | - $user_message = "👤 <b>User:</b> {$escaped_message}"; | |
| 4593 | - | |
| 4594 | - $response = wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/sendMessage", [ | |
| 4595 | - 'headers' => ['Content-Type' => 'application/json'], | |
| 4596 | - 'body' => json_encode([ | |
| 4597 | - 'chat_id' => $group_id, | |
| 4598 | - 'message_thread_id' => $topic_id, | |
| 4599 | - 'text' => $user_message, | |
| 4600 | - 'parse_mode' => 'HTML' | |
| 4601 | - ]) | |
| 4602 | - ]); | |
| 4603 | - | |
| 4604 | - return !is_wp_error($response); | |
| 4605 | -} | |
| 4606 | - | |
| 4607 | -/** | |
| 4608 | - * Handle incoming Telegram webhook | |
| 4609 | - */ | |
| 4610 | -public function handle_telegram_webhook(WP_REST_Request $request) { | |
| 4611 | - $body = $request->get_body(); | |
| 4612 | - $data = json_decode($body, true); | |
| 4613 | - | |
| 4614 | - //error_log('[MxChat Telegram DEBUG] Webhook received: ' . $body); | |
| 4615 | - | |
| 4616 | - // Handle message events from forum topics | |
| 4617 | - if (isset($data['message'])) { | |
| 4618 | - $message_data = $data['message']; | |
| 4619 | - | |
| 4620 | - // Skip if not from a forum topic | |
| 4621 | - if (!isset($message_data['message_thread_id'])) { | |
| 4622 | - //error_log('[MxChat Telegram DEBUG] Skipped: No message_thread_id (not a forum topic message)'); | |
| 4623 | - return new WP_REST_Response(['ok' => true]); | |
| 4624 | - } | |
| 4625 | - | |
| 4626 | - // Skip bot messages | |
| 4627 | - if (isset($message_data['from']['is_bot']) && $message_data['from']['is_bot']) { | |
| 4628 | - //error_log('[MxChat Telegram DEBUG] Skipped: Message from bot'); | |
| 4629 | - return new WP_REST_Response(['ok' => true]); | |
| 4630 | - } | |
| 4631 | - | |
| 4632 | - $chat_id = $message_data['chat']['id'] ?? ''; | |
| 4633 | - $topic_id = $message_data['message_thread_id']; | |
| 4634 | - $message_text = $message_data['text'] ?? ''; | |
| 4635 | - $message_id = $message_data['message_id'] ?? ''; | |
| 4636 | - $from = $message_data['from'] ?? []; | |
| 4637 | - $agent_name = trim(($from['first_name'] ?? '') . ' ' . ($from['last_name'] ?? '')); | |
| 4638 | - if (empty($agent_name)) { | |
| 4639 | - $agent_name = $from['username'] ?? 'Agent'; | |
| 4640 | - } | |
| 4641 | - | |
| 4642 | - //error_log("[MxChat Telegram DEBUG] Parsed: chat_id={$chat_id}, topic_id={$topic_id}, agent={$agent_name}, text={$message_text}"); | |
| 4643 | - | |
| 4644 | - // Skip empty messages | |
| 4645 | - if (empty($message_text)) { | |
| 4646 | - //error_log('[MxChat Telegram DEBUG] Skipped: Empty message text'); | |
| 4647 | - return new WP_REST_Response(['ok' => true]); | |
| 4648 | - } | |
| 4649 | - | |
| 4650 | - // Find session ID by topic ID - cast to string for comparison | |
| 4651 | - global $wpdb; | |
| 4652 | - $topic_id_str = strval($topic_id); | |
| 4653 | - $session_option = $wpdb->get_var( | |
| 4654 | - $wpdb->prepare( | |
| 4655 | - "SELECT option_name FROM {$wpdb->options} | |
| 4656 | - WHERE option_name LIKE %s | |
| 4657 | - AND option_value = %s", | |
| 4658 | - 'mxchat_telegram_topic_%', | |
| 4659 | - $topic_id_str | |
| 4660 | - ) | |
| 4661 | - ); | |
| 4662 | - | |
| 4663 | - //error_log("[MxChat Telegram DEBUG] Looking for topic_id={$topic_id_str} in options, found: " . ($session_option ?: 'NULL')); | |
| 4664 | - | |
| 4665 | - if ($session_option) { | |
| 4666 | - $session_id = str_replace('mxchat_telegram_topic_', '', $session_option); | |
| 4667 | - //error_log("[MxChat Telegram DEBUG] Session ID: {$session_id}"); | |
| 4668 | - | |
| 4669 | - // Verify the group ID matches | |
| 4670 | - $stored_group_id = get_option("mxchat_telegram_group_{$session_id}", ''); | |
| 4671 | - //error_log("[MxChat Telegram DEBUG] Stored group_id={$stored_group_id}, received chat_id={$chat_id}"); | |
| 4672 | - | |
| 4673 | - if (strval($stored_group_id) != strval($chat_id)) { | |
| 4674 | - //error_log('[MxChat Telegram DEBUG] Skipped: Group ID mismatch'); | |
| 4675 | - return new WP_REST_Response(['ok' => true]); | |
| 4676 | - } | |
| 4677 | - | |
| 4678 | - // Check for closure commands | |
| 4679 | - $lower_text = strtolower(trim($message_text)); | |
| 4680 | - if (in_array($lower_text, ['#close', '#end', '#disconnect', '#done'])) { | |
| 4681 | - //error_log("[MxChat Telegram DEBUG] Closure command received: {$lower_text}"); | |
| 4682 | - // End the live agent session | |
| 4683 | - update_option("mxchat_mode_{$session_id}", 'ai'); | |
| 4684 | - | |
| 4685 | - // Save disconnect message | |
| 4686 | - $disconnect_message = "Live agent session ended. You're now chatting with the AI assistant."; | |
| 4687 | - $this->mxchat_save_chat_message($session_id, 'bot', $disconnect_message); | |
| 4688 | - | |
| 4689 | - // Notify in Telegram | |
| 4690 | - $telegram_bot_token = $this->options['telegram_bot_token'] ?? ''; | |
| 4691 | - if (!empty($telegram_bot_token)) { | |
| 4692 | - wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/sendMessage", [ | |
| 4693 | - 'headers' => ['Content-Type' => 'application/json'], | |
| 4694 | - 'body' => json_encode([ | |
| 4695 | - 'chat_id' => $chat_id, | |
| 4696 | - 'message_thread_id' => $topic_id, | |
| 4697 | - 'text' => "✅ Session closed. User returned to AI chatbot.", | |
| 4698 | - 'parse_mode' => 'HTML' | |
| 4699 | - ]) | |
| 4700 | - ]); | |
| 4701 | - | |
| 4702 | - // Optionally close the topic | |
| 4703 | - wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/closeForumTopic", [ | |
| 4704 | - 'headers' => ['Content-Type' => 'application/json'], | |
| 4705 | - 'body' => json_encode([ | |
| 4706 | - 'chat_id' => $chat_id, | |
| 4707 | - 'message_thread_id' => $topic_id | |
| 4708 | - ]) | |
| 4709 | - ]); | |
| 4710 | - } | |
| 4711 | - | |
| 4712 | - return new WP_REST_Response(['ok' => true]); | |
| 4713 | - } | |
| 4714 | - | |
| 4715 | - // Deduplicate messages | |
| 4716 | - $message_key = md5($session_id . $message_id . $message_text); | |
| 4717 | - $processed_messages = get_transient('mxchat_telegram_messages_' . $session_id) ?: []; | |
| 4718 | - | |
| 4719 | - if (in_array($message_key, $processed_messages)) { | |
| 4720 | - //error_log('[MxChat Telegram DEBUG] Skipped: Duplicate message'); | |
| 4721 | - return new WP_REST_Response(['ok' => true]); | |
| 4722 | - } | |
| 4723 | - | |
| 4724 | - $processed_messages[] = $message_key; | |
| 4725 | - if (count($processed_messages) > 50) { | |
| 4726 | - $processed_messages = array_slice($processed_messages, -50); | |
| 4727 | - } | |
| 4728 | - set_transient('mxchat_telegram_messages_' . $session_id, $processed_messages, HOUR_IN_SECONDS); | |
| 4729 | - | |
| 4730 | - // Save the agent message - format with agent name prefix for proper parsing | |
| 4731 | - $formatted_message = "Agent: {$agent_name} - {$message_text}"; | |
| 4732 | - //error_log("[MxChat Telegram DEBUG] Saving agent message: {$formatted_message}"); | |
| 4733 | - | |
| 4734 | - $this->mxchat_save_chat_message($session_id, 'agent', $formatted_message); | |
| 4735 | - | |
| 4736 | - // Verify the message was saved to history | |
| 4737 | - $history = get_option("mxchat_history_{$session_id}", []); | |
| 4738 | - $last_message = end($history); | |
| 4739 | - //error_log("[MxChat Telegram DEBUG] History after save - count: " . count($history) . ", last message role: " . ($last_message['role'] ?? 'none')); | |
| 4740 | - | |
| 4741 | - // Send confirmation back to Telegram | |
| 4742 | - $telegram_bot_token = $this->options['telegram_bot_token'] ?? ''; | |
| 4743 | - if (!empty($telegram_bot_token)) { | |
| 4744 | - $confirm_key = 'mxchat_telegram_confirm_' . $message_key; | |
| 4745 | - if (!get_transient($confirm_key)) { | |
| 4746 | - wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/sendMessage", [ | |
| 4747 | - 'headers' => ['Content-Type' => 'application/json'], | |
| 4748 | - 'body' => json_encode([ | |
| 4749 | - 'chat_id' => $chat_id, | |
| 4750 | - 'message_thread_id' => $topic_id, | |
| 4751 | - 'text' => "✅ <i>Message sent to user</i>", | |
| 4752 | - 'parse_mode' => 'HTML', | |
| 4753 | - 'reply_to_message_id' => $message_id | |
| 4754 | - ]) | |
| 4755 | - ]); | |
| 4756 | - set_transient($confirm_key, true, 300); | |
| 4757 | - } | |
| 4758 | - } | |
| 4759 | - } else { | |
| 4760 | - //error_log("[MxChat Telegram DEBUG] No session found for topic_id={$topic_id}"); | |
| 4761 | - } | |
| 4762 | - } else { | |
| 4763 | - //error_log('[MxChat Telegram DEBUG] No message in webhook data'); | |
| 4764 | - } | |
| 4765 | - | |
| 4766 | - return new WP_REST_Response(['ok' => true]); | |
| 4767 | -} | |
| 4768 | - | |
| 4769 | -public function mxchat_send_user_message_to_agent($message, $user_id, $session_id) { | |
| 4770 | - // Check if this is a Telegram agent session | |
| 4771 | - $telegram_topic_id = get_option("mxchat_telegram_topic_{$session_id}", ''); | |
| 4772 | - if (!empty($telegram_topic_id)) { | |
| 4773 | - return $this->mxchat_send_user_message_to_telegram_agent($message, $user_id, $session_id); | |
| 4774 | - } | |
| 4775 | - | |
| 4776 | - // Otherwise, try Slack | |
| 4777 | - $slack_bot_token = $this->options['live_agent_bot_token'] ?? ''; | |
| 4778 | - $channel_id = get_option("mxchat_channel_{$session_id}", ''); | |
| 4779 | - | |
| 4780 | - if (empty($slack_bot_token) || empty($channel_id)) { | |
| 4781 | - return false; | |
| 4782 | - } | |
| 4783 | - | |
| 4784 | - $user_message = "💬 *User:* {$message}"; | |
| 4785 | - | |
| 4786 | - $response = wp_remote_post('https://slack.com/api/chat.postMessage', [ | |
| 4787 | - 'headers' => [ | |
| 4788 | - 'Content-Type' => 'application/json', | |
| 4789 | - 'Authorization' => 'Bearer ' . $slack_bot_token | |
| 4790 | - ], | |
| 4791 | - 'body' => json_encode([ | |
| 4792 | - 'channel' => $channel_id, | |
| 4793 | - 'text' => $user_message, | |
| 4794 | - 'mrkdwn' => true | |
| 4795 | - ]) | |
| 4796 | - ]); | |
| 4797 | - | |
| 4798 | - return !is_wp_error($response); | |
| 4799 | -} | |
| 4800 | -public function handle_slack_interaction(WP_REST_Request $request) { | |
| 4801 | - //error_log('Received Slack interaction'); | |
| 4802 | - | |
| 4803 | - $payload = json_decode($request->get_param('payload'), true); | |
| 4804 | - //error_log('Payload: ' . print_r($payload, true)); | |
| 4805 | - | |
| 4806 | - // Handle button click | |
| 4807 | - if ($payload['type'] === 'block_actions' && $payload['actions'][0]['action_id'] === 'reply_to_user') { | |
| 4808 | - $session_id = $payload['actions'][0]['value']; | |
| 4809 | - $trigger_id = $payload['trigger_id']; | |
| 4810 | - | |
| 4811 | - // Get Bot Token from settings | |
| 4812 | - $slack_token = $this->options['live_agent_bot_token'] ?? ''; | |
| 4813 | - | |
| 4814 | - if (empty($slack_token)) { | |
| 4815 | - //error_log('Slack Bot Token not configured'); | |
| 4816 | - return new WP_REST_Response(['error' => esc_html__('Bot token not configured', 'mxchat')], 400); | |
| 4817 | - } | |
| 4818 | - $response = wp_remote_post('https://slack.com/api/views.open', [ | |
| 4819 | - 'headers' => [ | |
| 4820 | - 'Content-Type' => 'application/json', | |
| 4821 | - 'Authorization' => 'Bearer ' . $slack_token | |
| 4822 | - ], | |
| 4823 | - 'body' => json_encode([ | |
| 4824 | - 'trigger_id' => $trigger_id, | |
| 4825 | - 'view' => [ | |
| 4826 | - 'type' => 'modal', | |
| 4827 | - 'callback_id' => 'reply_modal', | |
| 4828 | - 'title' => [ | |
| 4829 | - 'type' => 'plain_text', | |
| 4830 | - 'text' => __('Reply to User', 'mxchat') | |
| 4831 | - ], | |
| 4832 | - 'submit' => [ | |
| 4833 | - 'type' => 'plain_text', | |
| 4834 | - 'text' => __('Send', 'mxchat') | |
| 4835 | - ], | |
| 4836 | - 'close' => [ | |
| 4837 | - 'type' => 'plain_text', | |
| 4838 | - 'text' => __('Cancel', 'mxchat') | |
| 4839 | - ], | |
| 4840 | - 'blocks' => [ | |
| 4841 | - [ | |
| 4842 | - 'type' => 'input', | |
| 4843 | - 'block_id' => 'reply_block', | |
| 4844 | - 'label' => [ | |
| 4845 | - 'type' => 'plain_text', | |
| 4846 | - 'text' => sprintf(__('Reply to session: %s', 'mxchat'), $session_id) | |
| 4847 | - ], | |
| 4848 | - 'element' => [ | |
| 4849 | - 'type' => 'plain_text_input', | |
| 4850 | - 'action_id' => 'message', | |
| 4851 | - 'multiline' => true, | |
| 4852 | - 'placeholder' => [ | |
| 4853 | - 'type' => 'plain_text', | |
| 4854 | - 'text' => __('Type your message here...', 'mxchat') | |
| 4855 | - ] | |
| 4856 | - ] | |
| 4857 | - ] | |
| 4858 | - ], | |
| 4859 | - 'private_metadata' => $session_id | |
| 4860 | - ] | |
| 4861 | - ]) | |
| 4862 | - ]); | |
| 4863 | - | |
| 4864 | - //error_log('Views.open response: ' . print_r($response, true)); | |
| 4865 | - | |
| 4866 | - // Return immediate acknowledgment | |
| 4867 | - return new WP_REST_Response(['ok' => true]); | |
| 4868 | - } | |
| 4869 | - | |
| 4870 | - // Handle modal submission | |
| 4871 | -// Handle modal submission | |
| 4872 | -if ($payload['type'] === 'view_submission') { | |
| 4873 | - $session_id = $payload['view']['private_metadata']; | |
| 4874 | - $message = $payload['view']['state']['values']['reply_block']['message']['value']; | |
| 4875 | - | |
| 4876 | - // Save the message (keep the message_id but don't include in response) | |
| 4877 | - $this->mxchat_save_chat_message($session_id, 'agent', $message); | |
| 4878 | - | |
| 4879 | - // Keep the original response format for Slack | |
| 4880 | - return new WP_REST_Response([ | |
| 4881 | - 'response_action' => 'clear' | |
| 4882 | - ]); | |
| 4883 | -} | |
| 4884 | - | |
| 4885 | - // Default acknowledgment | |
| 4886 | - return new WP_REST_Response(['ok' => true]); | |
| 4887 | -} | |
| 4888 | -public function mxchat_handle_agent_response(WP_REST_Request $request) { | |
| 4889 | - //error_log('Received agent response request'); | |
| 4890 | - //error_log('Request data: ' . print_r($request->get_params(), true)); | |
| 4891 | - // //error_log('Raw body: ' . file_get_contents('php://input')); | |
| 4892 | - | |
| 4893 | - // Get the data from Slack's slash command format | |
| 4894 | - $command_text = $request->get_param('text'); | |
| 4895 | - // //error_log('Command text: ' . $command_text); | |
| 4896 | - | |
| 4897 | - if (empty($command_text)) { | |
| 4898 | - //error_log(esc_html__('Agent response error: No command text received', 'mxchat')); | |
| 4899 | - return new WP_REST_Response([ | |
| 4900 | - 'error' => esc_html__('Command text is required. Format: /reply session_id message', 'mxchat') | |
| 4901 | - ], 400); | |
| 4902 | - } | |
| 4903 | - | |
| 4904 | - // Split the command text into session_id and message | |
| 4905 | - $parts = explode(' ', $command_text, 2); | |
| 4906 | - if (count($parts) !== 2) { | |
| 4907 | - //error_log('Agent response error: Invalid command format'); | |
| 4908 | - return new WP_REST_Response([ | |
| 4909 | - 'error' => esc_html__('Invalid format. Use: /reply session_id message', 'mxchat') | |
| 4910 | - ], 400); | |
| 4911 | - } | |
| 4912 | - | |
| 4913 | - $session_id = sanitize_text_field($parts[0]); | |
| 4914 | - $message = sanitize_text_field($parts[1]); | |
| 4915 | - | |
| 4916 | - //error_log("Processing agent response - Session ID: $session_id, Message: $message"); | |
| 4917 | - | |
| 4918 | - // Save the message | |
| 4919 | - $message_id = $this->mxchat_save_chat_message($session_id, 'agent', $message); | |
| 4920 | - | |
| 4921 | - if (!$message_id) { | |
| 4922 | - // //error_log('Failed to save agent message'); | |
| 4923 | - return new WP_REST_Response([ | |
| 4924 | - 'error' => esc_html__('Failed to save message', 'mxchat') | |
| 4925 | - ], 500); | |
| 4926 | - } | |
| 4927 | - | |
| 4928 | - // Return success response in Slack's expected format | |
| 4929 | - return new WP_REST_Response([ | |
| 4930 | - 'response_type' => 'in_channel', | |
| 4931 | - 'text' => esc_html__("Message sent successfully to session $session_id", 'mxchat') | |
| 4932 | - ], 200); | |
| 4933 | -} | |
| 4934 | -public function mxchat_handle_switch_to_chatbot_intent($message, $user_id, $session_id) { | |
| 4935 | - // Update mode to AI | |
| 4936 | - update_option("mxchat_mode_{$session_id}", 'ai'); | |
| 4937 | - | |
| 4938 | - // Clear any existing PDF context to start fresh | |
| 4939 | - $this->clear_pdf_transients($session_id); | |
| 4940 | - | |
| 4941 | - // Set the response with explicit chat_mode | |
| 4942 | - $this->fallbackResponse = [ | |
| 4943 | - 'text' => esc_html__('You are now chatting with the AI chatbot.', 'mxchat'), | |
| 4944 | - 'html' => '', | |
| 4945 | - 'images' => [], | |
| 4946 | - 'chat_mode' => 'ai' // Ensure this is set | |
| 4947 | - ]; | |
| 4948 | - | |
| 4949 | - // Return the complete response array instead of just true | |
| 4950 | - return $this->fallbackResponse; | |
| 4951 | -} | |
| 4952 | - | |
| 4953 | -/** | |
| 4954 | - * Normalize Slack mrkdwn before relaying an agent's message to the web visitor. | |
| 4955 | - * Slack's Events API auto-wraps URLs as <https://url> or <https://url|Label>, wraps | |
| 4956 | - * mentions as <@U…>/<#C…|name>, and HTML-escapes &, <, >. Relayed raw, the visitor | |
| 4957 | - * sees a broken/doubled link with a trailing > (plan-e2195b). Unwrap links FIRST, then | |
| 4958 | - * unescape entities LAST so extracted URLs (which can contain &) are not corrupted. | |
| 4959 | - */ | |
| 4960 | -private function normalize_slack_text($text) { | |
| 4961 | - if (!is_string($text) || $text === '') { | |
| 4962 | - return $text; | |
| 4963 | - } | |
| 4964 | - | |
| 4965 | - $text = preg_replace_callback('/<([^>|]+)(?:\|([^>]*))?>/', function ($m) { | |
| 4966 | - $target = $m[1]; | |
| 4967 | - $label = isset($m[2]) ? $m[2] : ''; | |
| 4968 | - | |
| 4969 | - // User/channel mentions: <@U…> or <#C…|name> — prefer the human label, else drop the id. | |
| 4970 | - if (isset($target[0]) && ($target[0] === '@' || $target[0] === '#')) { | |
| 4971 | - return $label !== '' ? $label : ''; | |
| 4972 | - } | |
| 4973 | - // mailto:/tel: — strip the scheme for display. | |
| 4974 | - if (stripos($target, 'mailto:') === 0) { | |
| 4975 | - $addr = substr($target, 7); | |
| 4976 | - return ($label !== '' && $label !== $addr) ? "{$label} ({$addr})" : $addr; | |
| 4977 | - } | |
| 4978 | - if (stripos($target, 'tel:') === 0) { | |
| 4979 | - $num = substr($target, 4); | |
| 4980 | - return ($label !== '' && $label !== $num) ? "{$label} ({$num})" : $num; | |
| 4981 | - } | |
| 4982 | - // Regular URL: <url|Label> -> "Label (url)"; bare <url> -> "url". | |
| 4983 | - if ($label !== '' && $label !== $target) { | |
| 4984 | - return "{$label} ({$target})"; | |
| 4985 | - } | |
| 4986 | - return $target; | |
| 4987 | - }, $text); | |
| 4988 | - | |
| 4989 | - // Entity-unescape LAST (after link extraction) so & inside URLs is repaired too. | |
| 4990 | - $text = str_replace(array('&', '<', '>'), array('&', '<', '>'), $text); | |
| 4991 | - | |
| 4992 | - return $text; | |
| 4993 | -} | |
| 4994 | - | |
| 4995 | -/** | |
| 4996 | - * Resolve the visitor's name + email for a session, mirroring generate_channel_name()'s | |
| 4997 | - * priority order: logged-in user, then the pre-chat gate options (mxchat_email_/mxchat_name_), | |
| 4998 | - * then the chat transcript. Returns ['name' => ..., 'email' => ...] (either may be ''). plan-e2195b. | |
| 4999 | - */ | |
| 5000 | -private function mxchat_get_visitor_identity($session_id) { | |
| 5001 | - $email = ''; | |
| 5002 | - $name = ''; | |
| 5003 | - | |
| 5004 | - if (is_user_logged_in()) { | |
| 5005 | - $current_user = wp_get_current_user(); | |
| 5006 | - if (!empty($current_user->user_email)) { $email = $current_user->user_email; } | |
| 5007 | - if (!empty($current_user->display_name)) { $name = $current_user->display_name; } | |
| 5008 | - } | |
| 5009 | - | |
| 5010 | - if (empty($email)) { | |
| 5011 | - $saved_email = get_option("mxchat_email_{$session_id}", ''); | |
| 5012 | - if (!empty($saved_email)) { $email = $saved_email; } | |
| 5013 | - } | |
| 5014 | - if (empty($name)) { | |
| 5015 | - $saved_name = get_option("mxchat_name_{$session_id}", ''); | |
| 5016 | - if (!empty($saved_name)) { $name = $saved_name; } | |
| 5017 | - } | |
| 5018 | - | |
| 5019 | - if (empty($email) || empty($name)) { | |
| 5020 | - global $wpdb; | |
| 5021 | - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; | |
| 5022 | - $existing_data = $wpdb->get_row($wpdb->prepare( | |
| 5023 | - "SELECT user_email, user_name FROM $table_name WHERE session_id = %s AND (user_email IS NOT NULL OR user_name IS NOT NULL) LIMIT 1", | |
| 5024 | - $session_id | |
| 5025 | - )); | |
| 5026 | - if ($existing_data) { | |
| 5027 | - if (empty($email) && !empty($existing_data->user_email)) { $email = $existing_data->user_email; } | |
| 5028 | - if (empty($name) && !empty($existing_data->user_name)) { $name = $existing_data->user_name; } | |
| 5029 | - } | |
| 5030 | - } | |
| 5031 | - | |
| 5032 | - return array('name' => $name, 'email' => $email); | |
| 5033 | -} | |
| 5034 | - | |
| 5035 | -public function handle_slack_messages(WP_REST_Request $request) { | |
| 5036 | - // Log the incoming request for debugging | |
| 5037 | - //error_log('Slack events request received: ' . $request->get_body()); | |
| 5038 | - | |
| 5039 | - $body = $request->get_body(); | |
| 5040 | - $data = json_decode($body, true); | |
| 5041 | - | |
| 5042 | - // Handle Slack URL verification | |
| 5043 | - if (isset($data['type']) && $data['type'] === 'url_verification') { | |
| 5044 | - //error_log('Slack URL verification challenge: ' . $data['challenge']); | |
| 5045 | - return new WP_REST_Response($data['challenge'], 200, ['Content-Type' => 'text/plain']); | |
| 5046 | - } | |
| 5047 | - | |
| 5048 | - // IMPORTANT: Handle Slack's event deduplication | |
| 5049 | - if (isset($data['event_id'])) { | |
| 5050 | - $event_id = $data['event_id']; | |
| 5051 | - $processed_events = get_transient('mxchat_slack_events') ?: []; | |
| 5052 | - | |
| 5053 | - // Check if we've already processed this event | |
| 5054 | - if (in_array($event_id, $processed_events)) { | |
| 5055 | - //error_log("Duplicate event detected: $event_id"); | |
| 5056 | - return new WP_REST_Response(['ok' => true]); | |
| 5057 | - } | |
| 5058 | - | |
| 5059 | - // Add this event to processed list | |
| 5060 | - $processed_events[] = $event_id; | |
| 5061 | - // Keep only last 100 events to prevent memory issues | |
| 5062 | - if (count($processed_events) > 100) { | |
| 5063 | - $processed_events = array_slice($processed_events, -100); | |
| 5064 | - } | |
| 5065 | - // Store for 1 hour | |
| 5066 | - set_transient('mxchat_slack_events', $processed_events, HOUR_IN_SECONDS); | |
| 5067 | - } | |
| 5068 | - | |
| 5069 | - // Handle message events | |
| 5070 | - if (isset($data['event']) && $data['event']['type'] === 'message') { | |
| 5071 | - $event = $data['event']; | |
| 5072 | - | |
| 5073 | - // Skip bot messages and messages with subtypes (like bot_message) | |
| 5074 | - if (isset($event['bot_id']) || isset($event['subtype'])) { | |
| 5075 | - return new WP_REST_Response(['ok' => true]); | |
| 5076 | - } | |
| 5077 | - | |
| 5078 | - // Additional check: Skip if this is a threaded reply to our confirmation | |
| 5079 | - if (isset($event['thread_ts']) && $event['thread_ts'] !== $event['ts']) { | |
| 5080 | - return new WP_REST_Response(['ok' => true]); | |
| 5081 | - } | |
| 5082 | - | |
| 5083 | - $channel_id = $event['channel']; | |
| 5084 | - $message_text = $event['text'] ?? ''; | |
| 5085 | - $message_ts = $event['ts'] ?? ''; | |
| 5086 | - | |
| 5087 | - // Find session ID by looking for matching channel | |
| 5088 | - global $wpdb; | |
| 5089 | - $session_option = $wpdb->get_var( | |
| 5090 | - $wpdb->prepare( | |
| 5091 | - "SELECT option_name FROM {$wpdb->options} | |
| 5092 | - WHERE option_name LIKE 'mxchat_channel_%' | |
| 5093 | - AND option_value = %s", | |
| 5094 | - $channel_id | |
| 5095 | - ) | |
| 5096 | - ); | |
| 5097 | - | |
| 5098 | - if ($session_option) { | |
| 5099 | - $session_id = str_replace('mxchat_channel_', '', $session_option); | |
| 5100 | - | |
| 5101 | - // Create a unique key for this specific message | |
| 5102 | - $message_key = md5($session_id . $message_ts . $message_text); | |
| 5103 | - $processed_messages = get_transient('mxchat_processed_messages_' . $session_id) ?: []; | |
| 5104 | - | |
| 5105 | - // Check if we've already processed this exact message | |
| 5106 | - if (in_array($message_key, $processed_messages)) { | |
| 5107 | - //error_log("Duplicate message detected for session $session_id"); | |
| 5108 | - return new WP_REST_Response(['ok' => true]); | |
| 5109 | - } | |
| 5110 | - | |
| 5111 | - // Add to processed messages | |
| 5112 | - $processed_messages[] = $message_key; | |
| 5113 | - // Keep only last 50 messages per session | |
| 5114 | - if (count($processed_messages) > 50) { | |
| 5115 | - $processed_messages = array_slice($processed_messages, -50); | |
| 5116 | - } | |
| 5117 | - set_transient('mxchat_processed_messages_' . $session_id, $processed_messages, HOUR_IN_SECONDS); | |
| 5118 | - | |
| 5119 | - $slack_bot_token = $this->options['live_agent_bot_token'] ?? ''; | |
| 5120 | - | |
| 5121 | - // Handle agent ending the chat — transfer back to AI | |
| 5122 | - // Format: "!endchat" or "!endchat <custom message to user>" | |
| 5123 | - if (preg_match('/^!endchat\b/i', trim($message_text))) { | |
| 5124 | - update_option("mxchat_mode_{$session_id}", 'ai'); | |
| 5125 | - | |
| 5126 | - // Extract custom message after !endchat, or use empty string | |
| 5127 | - $custom_message = trim(preg_replace('/^!endchat\s*/i', '', trim($message_text))); | |
| 5128 | - | |
| 5129 | - // Send the agent's custom farewell message if provided | |
| 5130 | - if (!empty($custom_message)) { | |
| 5131 | - $this->mxchat_save_chat_message($session_id, 'agent', $this->normalize_slack_text($custom_message)); | |
| 5132 | - } | |
| 5133 | - | |
| 5134 | - // Confirm in Slack channel | |
| 5135 | - if (!empty($slack_bot_token)) { | |
| 5136 | - wp_remote_post('https://slack.com/api/chat.postMessage', [ | |
| 5137 | - 'headers' => [ | |
| 5138 | - 'Content-Type' => 'application/json', | |
| 5139 | - 'Authorization' => 'Bearer ' . $slack_bot_token | |
| 5140 | - ], | |
| 5141 | - 'body' => json_encode([ | |
| 5142 | - 'channel' => $channel_id, | |
| 5143 | - 'text' => "✅ *Chat ended.* User has been transferred back to AI mode.", | |
| 5144 | - 'mrkdwn' => true | |
| 5145 | - ]) | |
| 5146 | - ]); | |
| 5147 | - } | |
| 5148 | - | |
| 5149 | - return new WP_REST_Response(['ok' => true]); | |
| 5150 | - } | |
| 5151 | - | |
| 5152 | - // Save the agent message (normalize Slack link/entity formatting first — plan-e2195b) | |
| 5153 | - $this->mxchat_save_chat_message($session_id, 'agent', $this->normalize_slack_text($message_text)); | |
| 5154 | - | |
| 5155 | - // Send confirmation back to Slack (only once) | |
| 5156 | - if (!empty($slack_bot_token)) { | |
| 5157 | - // Use a transient to prevent duplicate confirmations | |
| 5158 | - $confirm_key = 'mxchat_confirm_' . $message_key; | |
| 5159 | - if (!get_transient($confirm_key)) { | |
| 5160 | - wp_remote_post('https://slack.com/api/chat.postMessage', [ | |
| 5161 | - 'headers' => [ | |
| 5162 | - 'Content-Type' => 'application/json', | |
| 5163 | - 'Authorization' => 'Bearer ' . $slack_bot_token | |
| 5164 | - ], | |
| 5165 | - 'body' => json_encode([ | |
| 5166 | - 'channel' => $channel_id, | |
| 5167 | - 'text' => "✅ _Message sent to user_", | |
| 5168 | - 'thread_ts' => $event['ts'] // Reply in thread | |
| 5169 | - ]) | |
| 5170 | - ]); | |
| 5171 | - // Set transient to prevent duplicate confirmations | |
| 5172 | - set_transient($confirm_key, true, 300); // 5 minutes | |
| 5173 | - } | |
| 5174 | - } | |
| 5175 | - } | |
| 5176 | - } | |
| 5177 | - | |
| 5178 | - return new WP_REST_Response(['ok' => true]); | |
| 5179 | -} | |
| 5180 | - | |
| 5181 | -// For the word upload handler | |
| 5182 | -public function mxchat_handle_word_upload() { | |
| 5183 | - // Delegate to word handler | |
| 5184 | - $this->word_handler->mxchat_handle_word_upload(); | |
| 5185 | -} | |
| 5186 | - | |
| 5187 | -// For the word removal handler | |
| 5188 | -public function mxchat_handle_word_remove() { | |
| 5189 | - // Delegate to word handler | |
| 5190 | - $this->word_handler->mxchat_handle_word_remove(); | |
| 5191 | -} | |
| 5192 | - | |
| 5193 | -// For the word status check | |
| 5194 | -public function mxchat_check_word_status() { | |
| 5195 | - // Delegate to word handler | |
| 5196 | - $this->word_handler->mxchat_check_word_status(); | |
| 5197 | -} | |
| 5198 | - | |
| 5199 | - | |
| 5200 | -private function mxchat_get_user_identifier() { | |
| 5201 | - return MxChat_User::mxchat_get_user_identifier(); | |
| 5202 | -} | |
| 5203 | - | |
| 5204 | -private function mxchat_generate_embedding($text, $api_key) { | |
| 5205 | - try { | |
| 5206 | - // Get options and selected model | |
| 5207 | - $options = get_option('mxchat_options'); | |
| 5208 | - $selected_model = $options['embedding_model'] ?? 'text-embedding-ada-002'; | |
| 5209 | - | |
| 5210 | - // Opt-in: route embeddings through the Custom (OpenAI-compatible) provider. | |
| 5211 | - // Off by default so existing sites see byte-identical behavior. | |
| 5212 | - if (!empty($options['custom_provider_for_embeddings']) && $options['custom_provider_for_embeddings'] === 'on') { | |
| 5213 | - return $this->mxchat_generate_embedding_custom($text); | |
| 5214 | - } | |
| 5215 | - | |
| 5216 | - // Determine endpoint and API key based on model | |
| 5217 | - if (strpos($selected_model, 'voyage') === 0) { | |
| 5218 | - $endpoint = 'https://api.voyageai.com/v1/embeddings'; | |
| 5219 | - $api_key = $options['voyage_api_key'] ?? ''; | |
| 5220 | - | |
| 5221 | - // Check if Voyage API key is missing | |
| 5222 | - if (empty($api_key)) { | |
| 5223 | - //error_log('Voyage API key is missing'); | |
| 5224 | - return [ | |
| 5225 | - 'error' => esc_html__('Voyage AI API key is not configured', 'mxchat'), | |
| 5226 | - 'error_code' => 'missing_voyage_api_key' | |
| 5227 | - ]; | |
| 5228 | - } | |
| 5229 | - } elseif (strpos($selected_model, 'gemini-embedding') === 0) { | |
| 5230 | - $endpoint = 'https://generativelanguage.googleapis.com/v1beta/models/' . $selected_model . ':embedContent'; | |
| 5231 | - $api_key = $options['gemini_api_key'] ?? ''; | |
| 5232 | - | |
| 5233 | - // Check if Gemini API key is missing | |
| 5234 | - if (empty($api_key)) { | |
| 5235 | - //error_log('Gemini API key is missing'); | |
| 5236 | - return [ | |
| 5237 | - 'error' => esc_html__('Google Gemini API key is not configured', 'mxchat'), | |
| 5238 | - 'error_code' => 'missing_gemini_api_key' | |
| 5239 | - ]; | |
| 5240 | - } | |
| 5241 | - } else { | |
| 5242 | - $endpoint = 'https://api.openai.com/v1/embeddings'; | |
| 5243 | - // Use the passed API key for OpenAI | |
| 5244 | - | |
| 5245 | - // Check if OpenAI API key is missing | |
| 5246 | - if (empty($api_key)) { | |
| 5247 | - //error_log('OpenAI API key is missing'); | |
| 5248 | - return [ | |
| 5249 | - 'error' => esc_html__('OpenAI API key is not configured', 'mxchat'), | |
| 5250 | - 'error_code' => 'missing_openai_api_key' | |
| 5251 | - ]; | |
| 5252 | - } | |
| 5253 | - } | |
| 5254 | - | |
| 5255 | - // Check if text is empty | |
| 5256 | - if (empty($text)) { | |
| 5257 | - //error_log('Empty text provided for embedding generation'); | |
| 5258 | - return [ | |
| 5259 | - 'error' => esc_html__('No text provided for embedding generation', 'mxchat'), | |
| 5260 | - 'error_code' => 'empty_embedding_text' | |
| 5261 | - ]; | |
| 5262 | - } | |
| 5263 | - | |
| 5264 | - // Prepare request body based on provider | |
| 5265 | - if (strpos($selected_model, 'gemini-embedding') === 0) { | |
| 5266 | - // Gemini API format | |
| 5267 | - $request_body = [ | |
| 5268 | - 'model' => 'models/' . $selected_model, | |
| 5269 | - 'content' => [ | |
| 5270 | - 'parts' => [ | |
| 5271 | - ['text' => $text] | |
| 5272 | - ] | |
| 5273 | - ], | |
| 5274 | - 'outputDimensionality' => 1536 | |
| 5275 | - ]; | |
| 5276 | - | |
| 5277 | - // Prepare headers for Gemini (API key as query parameter) | |
| 5278 | - $endpoint .= '?key=' . $api_key; | |
| 5279 | - $headers = [ | |
| 5280 | - 'Content-Type' => 'application/json' | |
| 5281 | - ]; | |
| 5282 | - } else { | |
| 5283 | - // OpenAI/Voyage API format | |
| 5284 | - $request_body = [ | |
| 5285 | - 'input' => $text, | |
| 5286 | - 'model' => $selected_model | |
| 5287 | - ]; | |
| 5288 | - | |
| 5289 | - // Add output_dimension for voyage-3-large | |
| 5290 | - if ($selected_model === 'voyage-3-large') { | |
| 5291 | - $request_body['output_dimension'] = 2048; | |
| 5292 | - } | |
| 5293 | - | |
| 5294 | - // Prepare headers for OpenAI/Voyage | |
| 5295 | - $headers = [ | |
| 5296 | - 'Content-Type' => 'application/json', | |
| 5297 | - 'Authorization' => 'Bearer ' . $api_key | |
| 5298 | - ]; | |
| 5299 | - } | |
| 5300 | - | |
| 5301 | - // Prepare request arguments | |
| 5302 | - $args = [ | |
| 5303 | - 'body' => wp_json_encode($request_body), | |
| 5304 | - 'headers' => $headers, | |
| 5305 | - 'timeout' => 60, | |
| 5306 | - 'redirection' => 5, | |
| 5307 | - 'blocking' => true, | |
| 5308 | - 'httpversion' => '1.0', | |
| 5309 | - 'sslverify' => true, | |
| 5310 | - ]; | |
| 5311 | - | |
| 5312 | - // Make the request | |
| 5313 | - $response = wp_remote_post($endpoint, $args); | |
| 5314 | - | |
| 5315 | - // Handle WordPress errors | |
| 5316 | - if (is_wp_error($response)) { | |
| 5317 | - $error_message = $response->get_error_message(); | |
| 5318 | - //error_log('Embedding Generation Error: ' . $error_message); | |
| 5319 | - return [ | |
| 5320 | - 'error' => esc_html__('Connection error when generating embeddings: ', 'mxchat') . esc_html($error_message), | |
| 5321 | - 'error_code' => 'embedding_connection_error' | |
| 5322 | - ]; | |
| 5323 | - } | |
| 5324 | - | |
| 5325 | - // Check HTTP status code | |
| 5326 | - $status_code = wp_remote_retrieve_response_code($response); | |
| 5327 | - if ($status_code !== 200) { | |
| 5328 | - $response_body = json_decode(wp_remote_retrieve_body($response), true); | |
| 5329 | - | |
| 5330 | - $error_message = isset($response_body['error']['message']) | |
| 5331 | - ? $response_body['error']['message'] | |
| 5332 | - : 'HTTP Error ' . $status_code; | |
| 5333 | - | |
| 5334 | - $error_type = isset($response_body['error']['type']) | |
| 5335 | - ? $response_body['error']['type'] | |
| 5336 | - : 'unknown'; | |
| 5337 | - | |
| 5338 | - //error_log('Embedding API HTTP Error: ' . $status_code . ' - ' . $error_message); | |
| 5339 | - | |
| 5340 | - // Handle specific error types | |
| 5341 | - switch ($error_type) { | |
| 5342 | - case 'invalid_request_error': | |
| 5343 | - if (strpos($error_message, 'API key') !== false) { | |
| 5344 | - return [ | |
| 5345 | - 'error' => esc_html__('Invalid API key for embedding generation. Please check your API key configuration.', 'mxchat'), | |
| 5346 | - 'error_code' => 'embedding_invalid_api_key' | |
| 5347 | - ]; | |
| 5348 | - } | |
| 5349 | - break; | |
| 5350 | - | |
| 5351 | - case 'authentication_error': | |
| 5352 | - return [ | |
| 5353 | - 'error' => esc_html__('Authentication failed for embedding generation. Please check your API key.', 'mxchat'), | |
| 5354 | - 'error_code' => 'embedding_auth_error' | |
| 5355 | - ]; | |
| 5356 | - | |
| 5357 | - case 'rate_limit_exceeded': | |
| 5358 | - return [ | |
| 5359 | - 'error' => esc_html__('Rate limit exceeded for embedding generation. Please try again later.', 'mxchat'), | |
| 5360 | - 'error_code' => 'embedding_rate_limit' | |
| 5361 | - ]; | |
| 5362 | - | |
| 5363 | - case 'quota_exceeded': | |
| 5364 | - return [ | |
| 5365 | - 'error' => esc_html__('API quota exceeded for embedding generation. Please check your billing details.', 'mxchat'), | |
| 5366 | - 'error_code' => 'embedding_quota_exceeded' | |
| 5367 | - ]; | |
| 5368 | - } | |
| 5369 | - | |
| 5370 | - // Generic error fallback | |
| 5371 | - return [ | |
| 5372 | - 'error' => esc_html__('Embedding API error - check embedding API key.: ', 'mxchat') . esc_html($error_message), | |
| 5373 | - 'error_code' => 'embedding_api_error', | |
| 5374 | - 'status_code' => $status_code | |
| 5375 | - ]; | |
| 5376 | - } | |
| 5377 | - | |
| 5378 | - $response_body = json_decode(wp_remote_retrieve_body($response), true); | |
| 5379 | - | |
| 5380 | - // Handle different response formats based on provider | |
| 5381 | - if (strpos($selected_model, 'gemini-embedding') === 0) { | |
| 5382 | - // Gemini API response format | |
| 5383 | - if (isset($response_body['embedding']['values']) && is_array($response_body['embedding']['values'])) { | |
| 5384 | - return $response_body['embedding']['values']; | |
| 5385 | - } else { | |
| 5386 | - //error_log('Invalid Gemini embedding response: ' . wp_json_encode($response_body)); | |
| 5387 | - return [ | |
| 5388 | - 'error' => esc_html__('Received invalid embedding data from the Gemini API.', 'mxchat'), | |
| 5389 | - 'error_code' => 'invalid_gemini_embedding_response' | |
| 5390 | - ]; | |
| 5391 | - } | |
| 5392 | - } else { | |
| 5393 | - // OpenAI/Voyage API response format | |
| 5394 | - if (isset($response_body['data'][0]['embedding']) && is_array($response_body['data'][0]['embedding'])) { | |
| 5395 | - return $response_body['data'][0]['embedding']; | |
| 5396 | - } else { | |
| 5397 | - //error_log('Invalid embedding response: ' . wp_json_encode($response_body)); | |
| 5398 | - return [ | |
| 5399 | - 'error' => esc_html__('Received invalid embedding data from the API.', 'mxchat'), | |
| 5400 | - 'error_code' => 'invalid_embedding_response' | |
| 5401 | - ]; | |
| 5402 | - } | |
| 5403 | - } | |
| 5404 | - } catch (Exception $e) { | |
| 5405 | - //error_log('Embedding Exception: ' . $e->getMessage()); | |
| 5406 | - return [ | |
| 5407 | - 'error' => esc_html__('System error when generating embeddings: ', 'mxchat') . esc_html($e->getMessage()), | |
| 5408 | - 'error_code' => 'embedding_exception' | |
| 5409 | - ]; | |
| 5410 | - } | |
| 5411 | -} | |
| 5412 | - | |
| 5413 | - | |
| 5414 | -/** | |
| 5415 | - * Generate embedding via a Custom (OpenAI-compatible) provider's /embeddings route. | |
| 5416 | - * Only called when the opt-in 'custom_provider_for_embeddings' setting is on. | |
| 5417 | - * Returns a numeric array (the embedding vector) on success, or ['error','error_code'] on failure. | |
| 5418 | - */ | |
| 5419 | -private function mxchat_generate_embedding_custom($text) { | |
| 5420 | - if (empty($text)) { | |
| 5421 | - return ['error' => esc_html__('No text provided for embedding generation', 'mxchat'), 'error_code' => 'empty_embedding_text']; | |
| 5422 | - } | |
| 5423 | - $cfg = $this->mxchat_resolve_custom_provider(); | |
| 5424 | - if (empty($cfg['base_url'])) { | |
| 5425 | - return ['error' => esc_html__('Custom provider Base URL is not configured.', 'mxchat'), 'error_code' => 'missing_custom_provider_base_url']; | |
| 5426 | - } | |
| 5427 | - | |
| 5428 | - $options = get_option('mxchat_options'); | |
| 5429 | - $embed_url = $cfg['base_url'] . '/embeddings'; | |
| 5430 | - if (!empty($cfg['api_version'])) { | |
| 5431 | - $embed_url .= (strpos($embed_url, '?') === false ? '?' : '&') . 'api-version=' . rawurlencode($cfg['api_version']); | |
| 5432 | - } | |
| 5433 | - $model = isset($options['custom_provider_embedding_model']) && trim((string) $options['custom_provider_embedding_model']) !== '' | |
| 5434 | - ? trim((string) $options['custom_provider_embedding_model']) | |
| 5435 | - : $cfg['model']; | |
| 5436 | - | |
| 5437 | - $response = wp_remote_post($embed_url, [ | |
| 5438 | - 'headers' => $this->mxchat_custom_provider_assoc_headers($cfg), | |
| 5439 | - 'body' => wp_json_encode(['input' => $text, 'model' => $model]), | |
| 5440 | - 'timeout' => 60, | |
| 5441 | - ]); | |
| 5442 | - if (is_wp_error($response)) { | |
| 5443 | - return [ | |
| 5444 | - 'error' => esc_html__('Connection error when generating embeddings (custom provider): ', 'mxchat') . esc_html($response->get_error_message()), | |
| 5445 | - 'error_code' => 'embedding_custom_connection_error', | |
| 5446 | - ]; | |
| 5447 | - } | |
| 5448 | - $status = wp_remote_retrieve_response_code($response); | |
| 5449 | - $body = json_decode(wp_remote_retrieve_body($response), true); | |
| 5450 | - if ($status !== 200) { | |
| 5451 | - $msg = isset($body['error']['message']) ? $body['error']['message'] : 'HTTP ' . $status; | |
| 5452 | - return [ | |
| 5453 | - 'error' => esc_html__('Custom embedding endpoint error: ', 'mxchat') . esc_html($msg), | |
| 5454 | - 'error_code' => 'embedding_custom_api_error', | |
| 5455 | - 'status_code' => $status, | |
| 5456 | - ]; | |
| 5457 | - } | |
| 5458 | - if (isset($body['data'][0]['embedding']) && is_array($body['data'][0]['embedding'])) { | |
| 5459 | - return $body['data'][0]['embedding']; | |
| 5460 | - } | |
| 5461 | - return [ | |
| 5462 | - 'error' => esc_html__('Invalid embedding response from custom provider.', 'mxchat'), | |
| 5463 | - 'error_code' => 'embedding_custom_invalid_response', | |
| 5464 | - ]; | |
| 5465 | -} | |
| 5466 | - | |
| 5467 | -private function mxchat_find_relevant_content($user_embedding, $bot_id = 'default', $user_query = '') { | |
| 5468 | - //error_log("MXCHAT DEBUG: find_relevant_content called with bot_id: " . $bot_id); | |
| 5469 | - | |
| 5470 | - // Check for OpenAI Vector Store first (takes priority when enabled) | |
| 5471 | - $bot_vectorstore_config = $this->get_bot_vectorstore_config($bot_id); | |
| 5472 | - | |
| 5473 | - if ($bot_vectorstore_config['use_vectorstore']) { | |
| 5474 | - // Get current model to verify it's an OpenAI model | |
| 5475 | - $bot_options = $this->get_bot_options($bot_id); | |
| 5476 | - $mxchat_options = get_option('mxchat_options', array()); | |
| 5477 | - $current_options = !empty($bot_options) ? $bot_options : $mxchat_options; | |
| 5478 | - $selected_model = $current_options['model'] ?? 'gpt-5.1-chat-latest'; | |
| 5479 | - | |
| 5480 | - if ($this->is_openai_chat_model($selected_model)) { | |
| 5481 | - //error_log("MXCHAT DEBUG: Using OpenAI Vector Store for knowledge retrieval"); | |
| 5482 | - return $this->find_relevant_content_openai_vectorstore($user_query, $bot_id, $bot_vectorstore_config); | |
| 5483 | - } else { | |
| 5484 | - //error_log("MXCHAT DEBUG: Vector Store enabled but model is not OpenAI (" . $selected_model . "), skipping Vector Store"); | |
| 5485 | - } | |
| 5486 | - } | |
| 5487 | - | |
| 5488 | - // Get bot-specific Pinecone configuration | |
| 5489 | - $bot_pinecone_config = $this->get_bot_pinecone_config($bot_id); | |
| 5490 | - | |
| 5491 | - // Debug: Log the Pinecone configuration | |
| 5492 | - //error_log("MXCHAT DEBUG: Pinecone config for bot '$bot_id':"); | |
| 5493 | - //error_log(" - use_pinecone: " . ($bot_pinecone_config['use_pinecone'] ? 'true' : 'false')); | |
| 5494 | - //error_log(" - api_key: " . (empty($bot_pinecone_config['api_key']) ? 'EMPTY' : 'SET (hidden)')); | |
| 5495 | - //error_log(" - host: " . ($bot_pinecone_config['host'] ?? 'NOT SET')); | |
| 5496 | - //error_log(" - namespace: " . ($bot_pinecone_config['namespace'] ?? 'NOT SET')); | |
| 5497 | - | |
| 5498 | - // Determine whether to use Pinecone based on bot configuration | |
| 5499 | - $use_pinecone = isset($bot_pinecone_config['use_pinecone']) ? $bot_pinecone_config['use_pinecone'] : false; | |
| 5500 | - | |
| 5501 | - //error_log("MXCHAT DEBUG: Using " . ($use_pinecone ? "Pinecone" : "WordPress Database") . " for knowledge retrieval"); | |
| 5502 | - | |
| 5503 | - if ($use_pinecone) { | |
| 5504 | - return $this->find_relevant_content_pinecone($user_embedding, $bot_id, $bot_pinecone_config); | |
| 5505 | - } else { | |
| 5506 | - return $this->find_relevant_content_wordpress($user_embedding, $bot_id); | |
| 5507 | - } | |
| 5508 | -} | |
| 5509 | - | |
| 5510 | -private function find_relevant_content_wordpress($user_embedding, $bot_id = 'default') { | |
| 5511 | - global $wpdb; | |
| 5512 | - $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content'; | |
| 5513 | - // Initialize similarity analysis storage | |
| 5514 | - $this->last_similarity_analysis = [ | |
| 5515 | - 'knowledge_base_type' => 'WordPress Database', | |
| 5516 | - 'bot_id' => $bot_id, | |
| 5517 | - 'top_matches' => [], | |
| 5518 | - 'threshold_used' => 0, | |
| 5519 | - 'total_checked' => 0 | |
| 5520 | - ]; | |
| 5521 | - | |
| 5522 | - // NEW: Initialize valid URLs array | |
| 5523 | - $valid_urls = []; | |
| 5524 | - | |
| 5525 | - // Get bot-specific options for similarity threshold | |
| 5526 | - $bot_options = $this->get_bot_options($bot_id); | |
| 5527 | - $current_options = !empty($bot_options) ? $bot_options : $this->options; | |
| 5528 | - | |
| 5529 | - // Get knowledge manager instance for role checking | |
| 5530 | - $knowledge_manager = MxChat_Knowledge_Manager::get_instance(); | |
| 5531 | - | |
| 5532 | - // Get base similarity threshold from bot options or default options | |
| 5533 | - $similarity_threshold = isset($current_options['similarity_threshold']) | |
| 5534 | - ? ((int) $current_options['similarity_threshold']) / 100 | |
| 5535 | - : 0.35; | |
| 5536 | - $this->last_similarity_analysis['threshold_used'] = $similarity_threshold; | |
| 5537 | - | |
| 5538 | - // Precompute bot_filter once, outside the streaming loop | |
| 5539 | - $bot_filter = ''; | |
| 5540 | - if ($bot_id !== 'default') { | |
| 5541 | - $column_exists = $wpdb->get_var("SHOW COLUMNS FROM {$system_prompt_table} LIKE 'bot_metadata'"); | |
| 5542 | - if ($column_exists) { | |
| 5543 | - $bot_filter = $wpdb->prepare(" AND (bot_metadata = %s OR bot_metadata IS NULL OR bot_metadata = '')", $bot_id); | |
| 5544 | - } | |
| 5545 | - } | |
| 5546 | - | |
| 5547 | - // ===== STREAMING TOP-K PASS ===== | |
| 5548 | - // Stream rows in small batches, compute cosine similarity per row, and keep only: | |
| 5549 | - // - top 10 by raw similarity (for the testing/debug display panel) | |
| 5550 | - // - candidates above threshold with access (capped) for context assembly | |
| 5551 | - // This bounds peak memory regardless of knowledge base size and avoids loading | |
| 5552 | - // article_content for every row. article_content is fetched in Phase 2 for winners only. | |
| 5553 | - $batch_size = 250; | |
| 5554 | - $max_candidates = 200; // safety cap, well above rag_sources_limit * max_chunks_per_source | |
| 5555 | - $top_display = []; | |
| 5556 | - $candidates = []; | |
| 5557 | - $total_checked = 0; | |
| 5558 | - $offset = 0; | |
| 5559 | - | |
| 5560 | - do { | |
| 5561 | - $batch = $wpdb->get_results($wpdb->prepare( | |
| 5562 | - "SELECT id, embedding_vector, source_url, role_restriction | |
| 5563 | - FROM {$system_prompt_table} | |
| 5564 | - WHERE 1=1 {$bot_filter} | |
| 5565 | - LIMIT %d OFFSET %d", | |
| 5566 | - $batch_size, | |
| 5567 | - $offset | |
| 5568 | - )); | |
| 5569 | - | |
| 5570 | - if (empty($batch)) { | |
| 5571 | - break; | |
| 5572 | - } | |
| 5573 | - | |
| 5574 | - foreach ($batch as $row) { | |
| 5575 | - $database_embedding = $row->embedding_vector | |
| 5576 | - ? unserialize($row->embedding_vector, ['allowed_classes' => false]) | |
| 5577 | - : null; | |
| 5578 | - | |
| 5579 | - if (!is_array($database_embedding) || !is_array($user_embedding)) { | |
| 5580 | - unset($database_embedding); | |
| 5581 | - continue; | |
| 5582 | - } | |
| 5583 | - | |
| 5584 | - $similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $database_embedding); | |
| 5585 | - unset($database_embedding); | |
| 5586 | - | |
| 5587 | - $role_restriction = $row->role_restriction ?? 'public'; | |
| 5588 | - $has_access = $knowledge_manager->mxchat_user_has_content_access($role_restriction); | |
| 5589 | - $source_url = $row->source_url ?? ''; | |
| 5590 | - | |
| 5591 | - // Maintain top 10 display buffer (insert-if-beats-worst) | |
| 5592 | - if (count($top_display) < 10) { | |
| 5593 | - $top_display[] = [ | |
| 5594 | - 'id' => $row->id, | |
| 5595 | - 'similarity' => $similarity, | |
| 5596 | - 'source_url' => $source_url, | |
| 5597 | - 'role_restriction' => $role_restriction, | |
| 5598 | - 'has_access' => $has_access, | |
| 5599 | - ]; | |
| 5600 | - usort($top_display, function ($a, $b) { | |
| 5601 | - return $b['similarity'] <=> $a['similarity']; | |
| 5602 | - }); | |
| 5603 | - } elseif ($similarity > $top_display[9]['similarity']) { | |
| 5604 | - $top_display[9] = [ | |
| 5605 | - 'id' => $row->id, | |
| 5606 | - 'similarity' => $similarity, | |
| 5607 | - 'source_url' => $source_url, | |
| 5608 | - 'role_restriction' => $role_restriction, | |
| 5609 | - 'has_access' => $has_access, | |
| 5610 | - ]; | |
| 5611 | - usort($top_display, function ($a, $b) { | |
| 5612 | - return $b['similarity'] <=> $a['similarity']; | |
| 5613 | - }); | |
| 5614 | - } | |
| 5615 | - | |
| 5616 | - // Track candidates for context assembly (above threshold + has access) | |
| 5617 | - if ($similarity >= $similarity_threshold && $has_access) { | |
| 5618 | - $candidates[] = [ | |
| 5619 | - 'id' => $row->id, | |
| 5620 | - 'similarity' => $similarity, | |
| 5621 | - 'source_url' => $source_url, | |
| 5622 | - ]; | |
| 5623 | - } | |
| 5624 | - | |
| 5625 | - $total_checked++; | |
| 5626 | - } | |
| 5627 | - | |
| 5628 | - unset($batch); | |
| 5629 | - | |
| 5630 | - // Trim candidates periodically to cap memory during long scans | |
| 5631 | - if (count($candidates) > $max_candidates) { | |
| 5632 | - usort($candidates, function ($a, $b) { | |
| 5633 | - return $b['similarity'] <=> $a['similarity']; | |
| 5634 | - }); | |
| 5635 | - $candidates = array_slice($candidates, 0, $max_candidates); | |
| 5636 | - } | |
| 5637 | - | |
| 5638 | - $offset += $batch_size; | |
| 5639 | - } while (true); | |
| 5640 | - | |
| 5641 | - if ($total_checked === 0) { | |
| 5642 | - $this->current_valid_urls = []; | |
| 5643 | - return ''; | |
| 5644 | - } | |
| 5645 | - | |
| 5646 | - // Final candidates sort (best first) | |
| 5647 | - if (count($candidates) > 1) { | |
| 5648 | - usort($candidates, function ($a, $b) { | |
| 5649 | - return $b['similarity'] <=> $a['similarity']; | |
| 5650 | - }); | |
| 5651 | - } | |
| 5652 | - | |
| 5653 | - // ===== PHASE 2: FETCH ARTICLE CONTENT ONLY FOR WINNERS ===== | |
| 5654 | - // Gather unique IDs we actually need (top_display + candidates) and pull | |
| 5655 | - // article_content in bounded IN() batches. This avoids loading content for | |
| 5656 | - // every row during the similarity scan. | |
| 5657 | - $needed_ids = []; | |
| 5658 | - foreach ($top_display as $item) { | |
| 5659 | - $needed_ids[$item['id']] = true; | |
| 5660 | - } | |
| 5661 | - foreach ($candidates as $item) { | |
| 5662 | - $needed_ids[$item['id']] = true; | |
| 5663 | - } | |
| 5664 | - $needed_ids = array_keys($needed_ids); | |
| 5665 | - | |
| 5666 | - $content_map = []; | |
| 5667 | - if (!empty($needed_ids)) { | |
| 5668 | - foreach (array_chunk($needed_ids, 250) as $chunk_ids) { | |
| 5669 | - $placeholders = implode(',', array_fill(0, count($chunk_ids), '%d')); | |
| 5670 | - $rows = $wpdb->get_results($wpdb->prepare( | |
| 5671 | - "SELECT id, article_content FROM {$system_prompt_table} WHERE id IN ($placeholders)", | |
| 5672 | - ...$chunk_ids | |
| 5673 | - )); | |
| 5674 | - foreach ($rows as $r) { | |
| 5675 | - $content_map[$r->id] = $r->article_content; | |
| 5676 | - } | |
| 5677 | - unset($rows); | |
| 5678 | - } | |
| 5679 | - } | |
| 5680 | - | |
| 5681 | - // Build the all_similarities display array from the top 10 | |
| 5682 | - $all_similarities = []; | |
| 5683 | - foreach ($top_display as $item) { | |
| 5684 | - $article_content_for_parse = $content_map[$item['id']] ?? ''; | |
| 5685 | - $parsed_for_display = MxChat_Chunker::parse_stored_chunk($article_content_for_parse); | |
| 5686 | - $is_chunk = $parsed_for_display['is_chunked']; | |
| 5687 | - $chunk_meta = $parsed_for_display['metadata']; | |
| 5688 | - | |
| 5689 | - if (!empty($item['source_url']) && $item['source_url'] !== '#') { | |
| 5690 | - $source_display = $item['source_url']; | |
| 5691 | - } else { | |
| 5692 | - $content_preview = strip_tags($article_content_for_parse); | |
| 5693 | - $content_preview = preg_replace('/\s+/', ' ', $content_preview); | |
| 5694 | - $source_display = substr(trim($content_preview), 0, 50) . '...'; | |
| 5695 | - } | |
| 5696 | - | |
| 5697 | - $all_similarities[] = [ | |
| 5698 | - 'document_id' => $item['id'], | |
| 5699 | - 'similarity' => $item['similarity'], | |
| 5700 | - 'similarity_percentage' => round($item['similarity'] * 100, 2), | |
| 5701 | - 'above_threshold' => $item['similarity'] >= $similarity_threshold, | |
| 5702 | - 'source_display' => $source_display, | |
| 5703 | - 'content_preview' => substr(strip_tags($parsed_for_display['text'] ?? ''), 0, 100) . '...', | |
| 5704 | - 'used_for_context' => false, | |
| 5705 | - 'role_restriction' => $item['role_restriction'], | |
| 5706 | - 'has_access' => $item['has_access'], | |
| 5707 | - 'filtered_out' => !$item['has_access'], | |
| 5708 | - 'is_chunk' => $is_chunk, | |
| 5709 | - 'chunk_index' => $is_chunk ? ($chunk_meta['chunk_index'] ?? 0) : null, | |
| 5710 | - 'total_chunks' => $is_chunk ? ($chunk_meta['total_chunks'] ?? 1) : null | |
| 5711 | - ]; | |
| 5712 | - } | |
| 5713 | - | |
| 5714 | - // Build url_groups from candidates for chunk reassembly | |
| 5715 | - $url_groups = array(); | |
| 5716 | - foreach ($candidates as $cand) { | |
| 5717 | - $article_content = $content_map[$cand['id']] ?? ''; | |
| 5718 | - $parsed = MxChat_Chunker::parse_stored_chunk($article_content); | |
| 5719 | - $is_chunked = $parsed['is_chunked']; | |
| 5720 | - $chunk_index = $parsed['metadata']['chunk_index'] ?? 0; | |
| 5721 | - $text_content = $parsed['text']; | |
| 5722 | - | |
| 5723 | - $source_url = $cand['source_url']; | |
| 5724 | - $group_key = !empty($source_url) ? $source_url : '_manual_' . $cand['id']; | |
| 5725 | - | |
| 5726 | - if (!isset($url_groups[$group_key])) { | |
| 5727 | - $url_groups[$group_key] = array( | |
| 5728 | - 'source_url' => $source_url, | |
| 5729 | - 'best_score' => 0, | |
| 5730 | - 'is_chunked' => $is_chunked, | |
| 5731 | - 'chunks' => array(), | |
| 5732 | - 'single_text' => '', | |
| 5733 | - 'single_id' => null | |
| 5734 | - ); | |
| 5735 | - } | |
| 5736 | - | |
| 5737 | - if ($cand['similarity'] > $url_groups[$group_key]['best_score']) { | |
| 5738 | - $url_groups[$group_key]['best_score'] = $cand['similarity']; | |
| 5739 | - } | |
| 5740 | - | |
| 5741 | - if ($is_chunked) { | |
| 5742 | - $url_groups[$group_key]['is_chunked'] = true; | |
| 5743 | - $url_groups[$group_key]['chunks'][] = array( | |
| 5744 | - 'id' => $cand['id'], | |
| 5745 | - 'score' => $cand['similarity'], | |
| 5746 | - 'chunk_index' => $chunk_index, | |
| 5747 | - 'text' => $text_content | |
| 5748 | - ); | |
| 5749 | - } else { | |
| 5750 | - $url_groups[$group_key]['single_text'] = $text_content; | |
| 5751 | - $url_groups[$group_key]['single_id'] = $cand['id']; | |
| 5752 | - } | |
| 5753 | - } | |
| 5754 | - | |
| 5755 | - // Sort ALL similarities for testing display (highest first) | |
| 5756 | - usort($all_similarities, function ($a, $b) { | |
| 5757 | - return $b['similarity'] <=> $a['similarity']; | |
| 5758 | - }); | |
| 5759 | - | |
| 5760 | - // Sort URL groups by best score (highest first) | |
| 5761 | - uasort($url_groups, function($a, $b) { | |
| 5762 | - return $b['best_score'] <=> $a['best_score']; | |
| 5763 | - }); | |
| 5764 | - | |
| 5765 | - // Get RAG sources limit from options (default 6, min 3, max 10) | |
| 5766 | - $rag_sources_limit = isset($current_options['rag_sources_limit']) ? intval($current_options['rag_sources_limit']) : 3; | |
| 5767 | - if ($rag_sources_limit < 3) $rag_sources_limit = 3; | |
| 5768 | - if ($rag_sources_limit > 10) $rag_sources_limit = 10; | |
| 5769 | - | |
| 5770 | - // Take top N unique URLs based on user setting | |
| 5771 | - $top_urls = array_slice($url_groups, 0, $rag_sources_limit, true); | |
| 5772 | - | |
| 5773 | - // Track which document IDs are used for context | |
| 5774 | - $used_document_ids = []; | |
| 5775 | - foreach ($top_urls as $group) { | |
| 5776 | - if ($group['is_chunked']) { | |
| 5777 | - foreach ($group['chunks'] as $chunk) { | |
| 5778 | - $used_document_ids[] = $chunk['id']; | |
| 5779 | - } | |
| 5780 | - } elseif ($group['single_id']) { | |
| 5781 | - $used_document_ids[] = $group['single_id']; | |
| 5782 | - } | |
| 5783 | - } | |
| 5784 | - | |
| 5785 | - // Update the all_similarities array to mark which were actually used | |
| 5786 | - foreach ($all_similarities as &$similarity_item) { | |
| 5787 | - $similarity_item['used_for_context'] = in_array($similarity_item['document_id'], $used_document_ids); | |
| 5788 | - } | |
| 5789 | - | |
| 5790 | - // Store top 10 for testing panel | |
| 5791 | - $this->last_similarity_analysis['top_matches'] = array_slice($all_similarities, 0, 10); | |
| 5792 | - $this->last_similarity_analysis['total_checked'] = $total_checked; | |
| 5793 | - | |
| 5794 | - // Initialize final content | |
| 5795 | - $content = ''; | |
| 5796 | - $matches_used = 0; | |
| 5797 | - $total_chunks_used = 0; | |
| 5798 | - $max_total_chunks = isset($current_options['rag_chunks_limit']) ? intval($current_options['rag_chunks_limit']) : 15; | |
| 5799 | - if ($max_total_chunks < 8) $max_total_chunks = 8; | |
| 5800 | - if ($max_total_chunks > 20) $max_total_chunks = 20; | |
| 5801 | - $max_chunks_per_source = 5; // Cap per individual source to limit token usage | |
| 5802 | - | |
| 5803 | - // Check if citation links are enabled (default to 'on' for backwards compatibility) | |
| 5804 | - // Use fresh options to ensure we get the latest setting value | |
| 5805 | - $fresh_options = get_option('mxchat_options', []); | |
| 5806 | - $citation_links_enabled = isset($fresh_options['citation_links_toggle']) ? ($fresh_options['citation_links_toggle'] === 'on') : true; | |
| 5807 | - | |
| 5808 | - // Build content from top sources | |
| 5809 | - foreach ($top_urls as $group_key => $group) { | |
| 5810 | - $source_url = $group['source_url']; // Use actual source_url, not the group key | |
| 5811 | - | |
| 5812 | - // Stop if we've hit the total chunk limit | |
| 5813 | - if ($total_chunks_used >= $max_total_chunks) { | |
| 5814 | - break; | |
| 5815 | - } | |
| 5816 | - | |
| 5817 | - $full_text = ''; | |
| 5818 | - $chunks_in_this_source = 1; // Default for non-chunked content | |
| 5819 | - | |
| 5820 | - if ($group['is_chunked']) { | |
| 5821 | - // Calculate how many chunks we can still use (respect both total and per-source caps) | |
| 5822 | - $chunks_remaining = min($max_chunks_per_source, $max_total_chunks - $total_chunks_used); | |
| 5823 | - | |
| 5824 | - // Fetch chunks for this URL with limit | |
| 5825 | - $full_text = $this->reassemble_chunks_from_wordpress($source_url, $chunks_remaining, $chunks_in_this_source); | |
| 5826 | - | |
| 5827 | - // If fetching all chunks fails, fall back to matched chunks | |
| 5828 | - if (empty($full_text)) { | |
| 5829 | - // Sort matched chunks by index and concatenate | |
| 5830 | - usort($group['chunks'], function($a, $b) { | |
| 5831 | - return $a['chunk_index'] <=> $b['chunk_index']; | |
| 5832 | - }); | |
| 5833 | - | |
| 5834 | - $chunk_texts = array(); | |
| 5835 | - $chunks_in_this_source = 0; | |
| 5836 | - foreach ($group['chunks'] as $chunk) { | |
| 5837 | - if ($total_chunks_used + $chunks_in_this_source >= $max_total_chunks) { | |
| 5838 | - break; | |
| 5839 | - } | |
| 5840 | - $chunk_texts[] = $chunk['text']; | |
| 5841 | - $chunks_in_this_source++; | |
| 5842 | - } | |
| 5843 | - $full_text = implode("\n\n", $chunk_texts); | |
| 5844 | - } | |
| 5845 | - } else { | |
| 5846 | - $full_text = $group['single_text']; | |
| 5847 | - $chunks_in_this_source = 1; | |
| 5848 | - } | |
| 5849 | - | |
| 5850 | - if (!empty($full_text)) { | |
| 5851 | - // Strip URLs from content if citation links are disabled | |
| 5852 | - if (!$citation_links_enabled) { | |
| 5853 | - $full_text = preg_replace('#\bhttps?://[^\s<>"\']+#i', '', $full_text); | |
| 5854 | - $full_text = preg_replace('/\s+/', ' ', trim($full_text)); // Clean up extra spaces | |
| 5855 | - } | |
| 5856 | - | |
| 5857 | - // Use numbered reference for URL-based entries, plain info label for manual entries | |
| 5858 | - // Manual entries are stored with an internal mxchat:// placeholder URL — never expose them as citations | |
| 5859 | - if (!empty($source_url) && $source_url !== '#' && strpos($source_url, 'mxchat://') !== 0) { | |
| 5860 | - $matches_used++; | |
| 5861 | - $content .= "## Reference " . $matches_used . " ##\n"; | |
| 5862 | - $content .= $full_text . "\n\n"; | |
| 5863 | - | |
| 5864 | - // Only include citation URLs if citation links are enabled | |
| 5865 | - if ($citation_links_enabled) { | |
| 5866 | - $valid_urls[] = $source_url; | |
| 5867 | - $content .= "URL: " . $source_url . "\n\n"; | |
| 5868 | - } | |
| 5869 | - } else { | |
| 5870 | - // Manual entry — no reference number, no citation | |
| 5871 | - $content .= "## Information ##\n"; | |
| 5872 | - $content .= $full_text . "\n\n"; | |
| 5873 | - } | |
| 5874 | - | |
| 5875 | - // Extract any URLs from the text content itself (only if citation links enabled) | |
| 5876 | - if ($citation_links_enabled) { | |
| 5877 | - preg_match_all( | |
| 5878 | - '#\bhttps?://[^\s<>"\']+#i', | |
| 5879 | - $full_text, | |
| 5880 | - $content_urls | |
| 5881 | - ); | |
| 5882 | - if (!empty($content_urls[0])) { | |
| 5883 | - $valid_urls = array_merge($valid_urls, $content_urls[0]); | |
| 5884 | - } | |
| 5885 | - } | |
| 5886 | - | |
| 5887 | - $total_chunks_used += $chunks_in_this_source; | |
| 5888 | - } | |
| 5889 | - } | |
| 5890 | - | |
| 5891 | - // NEW: Store unique valid URLs for validation | |
| 5892 | - $this->current_valid_urls = array_unique($valid_urls); | |
| 5893 | - | |
| 5894 | - // Store sources and chunks counts for testing/transcript display | |
| 5895 | - $this->last_similarity_analysis['sources_used'] = $matches_used; | |
| 5896 | - $this->last_similarity_analysis['total_chunks_used'] = $total_chunks_used; | |
| 5897 | - | |
| 5898 | - // Allow add-ons to act on similarity results (e.g. WooCommerce product card display) | |
| 5899 | - do_action('mxchat_similarity_results', $this->last_similarity_analysis['top_matches'], $bot_id); | |
| 5900 | - | |
| 5901 | - // Add response guidelines | |
| 5902 | - if (empty($top_urls)) { | |
| 5903 | - $content = "No reference information was found for this query.\n\n"; | |
| 5904 | - } else { | |
| 5905 | - // Build response guidelines based on citation links setting | |
| 5906 | - $content .= "\n## Response Guidelines ##\n" . | |
| 5907 | - "You are an AI Chatbot. Answer naturally and helpfully using only the information from the references above. " . | |
| 5908 | - "Be conversational and friendly, but never mention your knowledge base or training data. " . | |
| 5909 | - "If you don't have specific information or are uncertain about any details, it's always " . | |
| 5910 | - "better to honestly say you don't know rather than making up or guessing at answers. " . | |
| 5911 | - "When information is incomplete, let them know you are unsure.\n\n"; | |
| 5912 | - | |
| 5913 | - // Only add hyperlink instructions if citation links are enabled | |
| 5914 | - if ($citation_links_enabled) { | |
| 5915 | - $content .= "CRITICAL: When creating hyperlinks, always use proper markdown format with descriptive text: " . | |
| 5916 | - "[descriptive text](url). NEVER use empty brackets like [](url). The text in brackets must describe what the link is about. " . | |
| 5917 | - "Only cite references that have a URL. Do not cite or add source labels to Information sections that have no URL."; | |
| 5918 | - } else { | |
| 5919 | - $content .= "IMPORTANT: Do not include any citation links, source URLs, or hyperlinks in your responses. " . | |
| 5920 | - "Simply provide helpful answers based on the reference information without citing sources."; | |
| 5921 | - } | |
| 5922 | - } | |
| 5923 | - | |
| 5924 | - return trim($content); | |
| 5925 | -} | |
| 5926 | - | |
| 5927 | -/** | |
| 5928 | - * Fetch and reassemble chunks for a URL from WordPress database | |
| 5929 | - * | |
| 5930 | - * @param string $source_url The source URL to fetch chunks for | |
| 5931 | - * @param int $max_chunks Maximum number of chunks to return (0 = unlimited) | |
| 5932 | - * @param int &$chunk_count Reference to store the actual number of chunks returned | |
| 5933 | - * @return string Reassembled content from chunks | |
| 5934 | - */ | |
| 5935 | -private function reassemble_chunks_from_wordpress($source_url, $max_chunks = 0, &$chunk_count = 0) { | |
| 5936 | - global $wpdb; | |
| 5937 | - $table = $wpdb->prefix . 'mxchat_system_prompt_content'; | |
| 5938 | - | |
| 5939 | - // Fetch all rows with this source_url | |
| 5940 | - $rows = $wpdb->get_results($wpdb->prepare( | |
| 5941 | - "SELECT article_content FROM {$table} | |
| 5942 | - WHERE source_url = %s | |
| 5943 | - ORDER BY id ASC", | |
| 5944 | - $source_url | |
| 5945 | - )); | |
| 5946 | - | |
| 5947 | - if (empty($rows)) { | |
| 5948 | - $chunk_count = 0; | |
| 5949 | - return ''; | |
| 5950 | - } | |
| 5951 | - | |
| 5952 | - // Parse and sort chunks by index | |
| 5953 | - $chunks = array(); | |
| 5954 | - foreach ($rows as $row) { | |
| 5955 | - $parsed = MxChat_Chunker::parse_stored_chunk($row->article_content); | |
| 5956 | - | |
| 5957 | - if ($parsed['is_chunked']) { | |
| 5958 | - $chunk_index = $parsed['metadata']['chunk_index'] ?? 0; | |
| 5959 | - $chunks[$chunk_index] = $parsed['text']; | |
| 5960 | - } else { | |
| 5961 | - // Non-chunked content - just return it | |
| 5962 | - $chunks[] = $parsed['text']; | |
| 5963 | - } | |
| 5964 | - } | |
| 5965 | - | |
| 5966 | - // Sort by chunk index | |
| 5967 | - ksort($chunks); | |
| 5968 | - | |
| 5969 | - // Apply chunk limit if specified | |
| 5970 | - if ($max_chunks > 0 && count($chunks) > $max_chunks) { | |
| 5971 | - $chunks = array_slice($chunks, 0, $max_chunks, true); | |
| 5972 | - } | |
| 5973 | - | |
| 5974 | - // Store actual chunk count | |
| 5975 | - $chunk_count = count($chunks); | |
| 5976 | - | |
| 5977 | - // Reassemble content | |
| 5978 | - return implode("\n\n", $chunks); | |
| 5979 | -} | |
| 5980 | - | |
| 5981 | -private function find_relevant_content_pinecone($user_embedding, $bot_id = 'default', $bot_config = null) { | |
| 5982 | - global $wpdb; | |
| 5983 | - | |
| 5984 | - //error_log("MXCHAT DEBUG: find_relevant_content_pinecone called"); | |
| 5985 | - //error_log(" - bot_id: " . $bot_id); | |
| 5986 | - //error_log(" - user_embedding is array: " . (is_array($user_embedding) ? 'yes' : 'no')); | |
| 5987 | - //error_log(" - user_embedding count: " . (is_array($user_embedding) ? count($user_embedding) : 'N/A')); | |
| 5988 | - | |
| 5989 | - // Use bot-specific config or fall back to default | |
| 5990 | - if ($bot_config === null) { | |
| 5991 | - $bot_config = $this->get_bot_pinecone_config($bot_id); | |
| 5992 | - } | |
| 5993 | - | |
| 5994 | - $api_key = $bot_config['api_key'] ?? ''; | |
| 5995 | - $host = $bot_config['host'] ?? ''; | |
| 5996 | - $namespace = $bot_config['namespace'] ?? ''; | |
| 5997 | - | |
| 5998 | - //error_log("MXCHAT DEBUG: Pinecone query parameters:"); | |
| 5999 | - //error_log(" - API Key: " . (empty($api_key) ? 'EMPTY - ERROR!' : 'Present (length: ' . strlen($api_key) . ')')); | |
| 6000 | - //error_log(" - Host: " . (empty($host) ? 'EMPTY - ERROR!' : $host)); | |
| 6001 | - //error_log(" - Namespace: " . (empty($namespace) ? 'EMPTY (will use default)' : $namespace)); | |
| 6002 | - | |
| 6003 | - // Initialize similarity analysis storage | |
| 6004 | - $this->last_similarity_analysis = [ | |
| 6005 | - 'knowledge_base_type' => 'Pinecone', | |
| 6006 | - 'bot_id' => $bot_id, | |
| 6007 | - 'namespace' => $namespace, | |
| 6008 | - 'top_matches' => [], | |
| 6009 | - 'threshold_used' => 0, | |
| 6010 | - 'total_checked' => 0 | |
| 6011 | - ]; | |
| 6012 | - | |
| 6013 | - // NEW: Initialize valid URLs array | |
| 6014 | - $valid_urls = []; | |
| 6015 | - | |
| 6016 | - if (empty($host) || empty($api_key)) { | |
| 6017 | - //error_log("MXCHAT DEBUG ERROR: Missing Pinecone host or API key!"); | |
| 6018 | - //error_log(" - Host empty: " . (empty($host) ? 'YES' : 'NO')); | |
| 6019 | - //error_log(" - API key empty: " . (empty($api_key) ? 'YES' : 'NO')); | |
| 6020 | - // Store empty array for valid URLs since we can't proceed | |
| 6021 | - $this->current_valid_urls = []; | |
| 6022 | - return ''; | |
| 6023 | - } | |
| 6024 | - | |
| 6025 | - // Get knowledge manager instance for role checking | |
| 6026 | - $knowledge_manager = MxChat_Knowledge_Manager::get_instance(); | |
| 6027 | - | |
| 6028 | - // Get the similarity threshold from the bot options or main options | |
| 6029 | - $bot_options = $this->get_bot_options($bot_id); | |
| 6030 | - $current_options = !empty($bot_options) ? $bot_options : get_option('mxchat_options', []); | |
| 6031 | - | |
| 6032 | - $similarity_threshold = isset($current_options['similarity_threshold']) | |
| 6033 | - ? ((int) $current_options['similarity_threshold']) / 100 | |
| 6034 | - : 0.35; | |
| 6035 | - | |
| 6036 | - $this->last_similarity_analysis['threshold_used'] = $similarity_threshold; | |
| 6037 | - | |
| 6038 | - // Prepare the query request for Pinecone | |
| 6039 | - $api_endpoint = "https://{$host}/query"; | |
| 6040 | - | |
| 6041 | - $request_body = array( | |
| 6042 | - 'vector' => $user_embedding, | |
| 6043 | - 'topK' => 50, // Increased for chunked content grouping - need more candidates to find top N unique URLs | |
| 6044 | - 'includeMetadata' => true, | |
| 6045 | - 'includeValues' => true | |
| 6046 | - ); | |
| 6047 | - | |
| 6048 | - // Add namespace if specified for this bot | |
| 6049 | - if (!empty($namespace)) { | |
| 6050 | - $request_body['namespace'] = $namespace; | |
| 6051 | - } | |
| 6052 | - | |
| 6053 | - //error_log("MXCHAT DEBUG: About to call Pinecone API"); | |
| 6054 | - //error_log(" - Endpoint: " . $api_endpoint); | |
| 6055 | - //error_log(" - Namespace in request: " . (!empty($namespace) ? $namespace : 'NOT SET')); | |
| 6056 | - | |
| 6057 | - $response = wp_remote_post($api_endpoint, array( | |
| 6058 | - 'headers' => array( | |
| 6059 | - 'Api-Key' => $api_key, | |
| 6060 | - 'accept' => 'application/json', | |
| 6061 | - 'content-type' => 'application/json' | |
| 6062 | - ), | |
| 6063 | - 'body' => wp_json_encode($request_body), | |
| 6064 | - 'timeout' => 30 | |
| 6065 | - )); | |
| 6066 | - | |
| 6067 | - if (is_wp_error($response)) { | |
| 6068 | - //error_log("MXCHAT DEBUG ERROR: WP Error in Pinecone request: " . $response->get_error_message()); | |
| 6069 | - // Store empty array for valid URLs | |
| 6070 | - $this->current_valid_urls = []; | |
| 6071 | - return ''; | |
| 6072 | - } | |
| 6073 | - | |
| 6074 | - $response_code = wp_remote_retrieve_response_code($response); | |
| 6075 | - //error_log("MXCHAT DEBUG: Pinecone response code: " . $response_code); | |
| 6076 | - | |
| 6077 | - if ($response_code !== 200) { | |
| 6078 | - $response_body = wp_remote_retrieve_body($response); | |
| 6079 | - //error_log("MXCHAT DEBUG ERROR: Pinecone API error response: " . substr($response_body, 0, 500)); | |
| 6080 | - // Store empty array for valid URLs | |
| 6081 | - $this->current_valid_urls = []; | |
| 6082 | - return ''; | |
| 6083 | - } | |
| 6084 | - | |
| 6085 | - // ADD DETAILED DEBUG SECTION HERE | |
| 6086 | - $response_body = wp_remote_retrieve_body($response); | |
| 6087 | - //error_log("MXCHAT DEBUG: Raw Pinecone response length: " . strlen($response_body)); | |
| 6088 | - | |
| 6089 | - $results = json_decode($response_body, true); | |
| 6090 | - | |
| 6091 | - if (json_last_error() !== JSON_ERROR_NONE) { | |
| 6092 | - //error_log("MXCHAT DEBUG ERROR: JSON decode error: " . json_last_error_msg()); | |
| 6093 | - //error_log("MXCHAT DEBUG: First 500 chars of response: " . substr($response_body, 0, 500)); | |
| 6094 | - // Store empty array for valid URLs | |
| 6095 | - $this->current_valid_urls = []; | |
| 6096 | - return ''; | |
| 6097 | - } | |
| 6098 | - | |
| 6099 | - //error_log("MXCHAT DEBUG: Pinecone response structure:"); | |
| 6100 | - //error_log(" - Has 'matches' key: " . (isset($results['matches']) ? 'yes' : 'no')); | |
| 6101 | - //error_log(" - Has 'namespace' key: " . (isset($results['namespace']) ? 'yes (' . $results['namespace'] . ')' : 'no')); | |
| 6102 | - | |
| 6103 | - if (empty($results['matches'])) { | |
| 6104 | - //error_log("MXCHAT DEBUG: No matches found in Pinecone response"); | |
| 6105 | - //error_log("MXCHAT DEBUG: Response keys: " . implode(', ', array_keys($results))); | |
| 6106 | - // Store empty array for valid URLs | |
| 6107 | - $this->current_valid_urls = []; | |
| 6108 | - return ''; | |
| 6109 | - } | |
| 6110 | - | |
| 6111 | - //error_log("MXCHAT DEBUG: Found " . count($results['matches']) . " matches in Pinecone"); | |
| 6112 | - | |
| 6113 | - // Log first match details for debugging | |
| 6114 | - if (!empty($results['matches'][0])) { | |
| 6115 | - $first_match = $results['matches'][0]; | |
| 6116 | - //error_log("MXCHAT DEBUG: First match details:"); | |
| 6117 | - //error_log(" - Score: " . ($first_match['score'] ?? 'no score')); | |
| 6118 | - //error_log(" - Has metadata: " . (isset($first_match['metadata']) ? 'yes' : 'no')); | |
| 6119 | - if (isset($first_match['metadata'])) { | |
| 6120 | - //error_log(" - Metadata keys: " . implode(', ', array_keys($first_match['metadata']))); | |
| 6121 | - } | |
| 6122 | - } | |
| 6123 | - | |
| 6124 | - // Initialize the final content | |
| 6125 | - $content = ''; | |
| 6126 | - $matches_used = 0; | |
| 6127 | - $matches_used_for_context = []; | |
| 6128 | - $total_chunks_used = 0; | |
| 6129 | - $max_total_chunks = isset($current_options['rag_chunks_limit']) ? intval($current_options['rag_chunks_limit']) : 15; | |
| 6130 | - if ($max_total_chunks < 8) $max_total_chunks = 8; | |
| 6131 | - if ($max_total_chunks > 20) $max_total_chunks = 20; | |
| 6132 | - $max_chunks_per_source = 5; // Cap per individual source to limit token usage | |
| 6133 | - | |
| 6134 | - // Check if citation links are enabled (default to 'on' for backwards compatibility) | |
| 6135 | - // Use fresh options to ensure we get the latest setting value | |
| 6136 | - $fresh_options = get_option('mxchat_options', []); | |
| 6137 | - $citation_links_enabled = isset($fresh_options['citation_links_toggle']) ? ($fresh_options['citation_links_toggle'] === 'on') : true; | |
| 6138 | - | |
| 6139 | - // NEW CHUNKING LOGIC: Group results by source_url for chunk reassembly | |
| 6140 | - $url_groups = array(); | |
| 6141 | - | |
| 6142 | - foreach ($results['matches'] as $index => $match) { | |
| 6143 | - // Skip if similarity is below threshold | |
| 6144 | - if ($match['score'] < $similarity_threshold) { | |
| 6145 | - continue; | |
| 6146 | - } | |
| 6147 | - | |
| 6148 | - $metadata = $match['metadata'] ?? array(); | |
| 6149 | - $source_url = $metadata['source_url'] ?? ''; | |
| 6150 | - $match_id = $match['id'] ?? ''; | |
| 6151 | - | |
| 6152 | - // LAZY ROLE CHECK: Only check role for content we're actually considering | |
| 6153 | - $role_restriction = $this->get_single_vector_role($match_id, $metadata); | |
| 6154 | - $has_access = $knowledge_manager->mxchat_user_has_content_access($role_restriction); | |
| 6155 | - | |
| 6156 | - // Skip if user doesn't have access | |
| 6157 | - if (!$has_access) { | |
| 6158 | - continue; | |
| 6159 | - } | |
| 6160 | - | |
| 6161 | - // Use a unique key for manual entries without a source URL | |
| 6162 | - $group_key = !empty($source_url) ? $source_url : '_manual_' . $match_id; | |
| 6163 | - | |
| 6164 | - // Group by source URL (or unique key for manual entries) | |
| 6165 | - if (!isset($url_groups[$group_key])) { | |
| 6166 | - $url_groups[$group_key] = array( | |
| 6167 | - 'source_url' => $source_url, | |
| 6168 | - 'best_score' => 0, | |
| 6169 | - 'is_chunked' => isset($metadata['is_chunked']) && $metadata['is_chunked'], | |
| 6170 | - 'chunks' => array(), | |
| 6171 | - 'single_text' => '' | |
| 6172 | - ); | |
| 6173 | - } | |
| 6174 | - | |
| 6175 | - // Track best score for this group | |
| 6176 | - if ($match['score'] > $url_groups[$group_key]['best_score']) { | |
| 6177 | - $url_groups[$group_key]['best_score'] = $match['score']; | |
| 6178 | - } | |
| 6179 | - | |
| 6180 | - // Store chunk info or single text | |
| 6181 | - if ($url_groups[$group_key]['is_chunked']) { | |
| 6182 | - $url_groups[$group_key]['chunks'][] = array( | |
| 6183 | - 'id' => $match_id, | |
| 6184 | - 'score' => $match['score'], | |
| 6185 | - 'chunk_index' => $metadata['chunk_index'] ?? 0, | |
| 6186 | - 'text' => $metadata['text'] ?? '' | |
| 6187 | - ); | |
| 6188 | - } else { | |
| 6189 | - // Non-chunked content - just store the text | |
| 6190 | - $url_groups[$group_key]['single_text'] = $metadata['text'] ?? ''; | |
| 6191 | - $url_groups[$group_key]['single_id'] = $match_id; | |
| 6192 | - } | |
| 6193 | - } | |
| 6194 | - | |
| 6195 | - // Sort URL groups by best score (highest first) | |
| 6196 | - uasort($url_groups, function($a, $b) { | |
| 6197 | - return $b['best_score'] <=> $a['best_score']; | |
| 6198 | - }); | |
| 6199 | - | |
| 6200 | - // Get RAG sources limit from options (default 6, min 3, max 10) | |
| 6201 | - $rag_sources_limit = isset($current_options['rag_sources_limit']) ? intval($current_options['rag_sources_limit']) : 3; | |
| 6202 | - if ($rag_sources_limit < 3) $rag_sources_limit = 3; | |
| 6203 | - if ($rag_sources_limit > 10) $rag_sources_limit = 10; | |
| 6204 | - | |
| 6205 | - // Take top N unique URLs based on user setting | |
| 6206 | - $top_urls = array_slice($url_groups, 0, $rag_sources_limit, true); | |
| 6207 | - | |
| 6208 | - // Track which match IDs are actually used for context | |
| 6209 | - foreach ($top_urls as $group) { | |
| 6210 | - if ($group['is_chunked']) { | |
| 6211 | - foreach ($group['chunks'] as $chunk) { | |
| 6212 | - $matches_used_for_context[] = $chunk['id']; | |
| 6213 | - } | |
| 6214 | - } elseif (!empty($group['single_id'])) { | |
| 6215 | - $matches_used_for_context[] = $group['single_id']; | |
| 6216 | - } | |
| 6217 | - } | |
| 6218 | - | |
| 6219 | - // Build content from top sources | |
| 6220 | - foreach ($top_urls as $group_key => $group) { | |
| 6221 | - $source_url = $group['source_url']; // Use actual source_url, not the group key | |
| 6222 | - | |
| 6223 | - // Stop if we've hit the total chunk limit | |
| 6224 | - if ($total_chunks_used >= $max_total_chunks) { | |
| 6225 | - break; | |
| 6226 | - } | |
| 6227 | - | |
| 6228 | - $full_text = ''; | |
| 6229 | - $chunks_in_this_source = 1; // Default for non-chunked content | |
| 6230 | - | |
| 6231 | - if ($group['is_chunked']) { | |
| 6232 | - // Calculate how many chunks we can still use (respect both total and per-source caps) | |
| 6233 | - $chunks_remaining = min($max_chunks_per_source, $max_total_chunks - $total_chunks_used); | |
| 6234 | - | |
| 6235 | - // Fetch chunks for this URL with limit | |
| 6236 | - $full_text = $this->reassemble_chunks_from_pinecone($source_url, $bot_config, $chunks_remaining, $chunks_in_this_source); | |
| 6237 | - | |
| 6238 | - // If fetching all chunks fails, fall back to matched chunks | |
| 6239 | - if (empty($full_text)) { | |
| 6240 | - // Sort matched chunks by index and concatenate | |
| 6241 | - usort($group['chunks'], function($a, $b) { | |
| 6242 | - return $a['chunk_index'] <=> $b['chunk_index']; | |
| 6243 | - }); | |
| 6244 | - | |
| 6245 | - $chunk_texts = array(); | |
| 6246 | - $chunks_in_this_source = 0; | |
| 6247 | - foreach ($group['chunks'] as $chunk) { | |
| 6248 | - if ($total_chunks_used + $chunks_in_this_source >= $max_total_chunks) { | |
| 6249 | - break; | |
| 6250 | - } | |
| 6251 | - $chunk_texts[] = $chunk['text']; | |
| 6252 | - $chunks_in_this_source++; | |
| 6253 | - } | |
| 6254 | - $full_text = implode("\n\n", $chunk_texts); | |
| 6255 | - } | |
| 6256 | - } else { | |
| 6257 | - $full_text = $group['single_text']; | |
| 6258 | - $chunks_in_this_source = 1; | |
| 6259 | - } | |
| 6260 | - | |
| 6261 | - if (!empty($full_text)) { | |
| 6262 | - // Strip URLs from content if citation links are disabled | |
| 6263 | - if (!$citation_links_enabled) { | |
| 6264 | - $full_text = preg_replace('#\bhttps?://[^\s<>"\']+#i', '', $full_text); | |
| 6265 | - $full_text = preg_replace('/\s+/', ' ', trim($full_text)); // Clean up extra spaces | |
| 6266 | - } | |
| 6267 | - | |
| 6268 | - // Use numbered reference for URL-based entries, plain info label for manual entries | |
| 6269 | - // Manual entries are stored with an internal mxchat:// placeholder URL — never expose them as citations | |
| 6270 | - if (!empty($source_url) && $source_url !== '#' && strpos($source_url, 'mxchat://') !== 0) { | |
| 6271 | - $matches_used++; | |
| 6272 | - $content .= "## Reference " . $matches_used . " ##\n"; | |
| 6273 | - $content .= $full_text . "\n\n"; | |
| 6274 | - | |
| 6275 | - // Only include citation URLs if citation links are enabled | |
| 6276 | - if ($citation_links_enabled) { | |
| 6277 | - $valid_urls[] = $source_url; | |
| 6278 | - $content .= "URL: " . $source_url . "\n\n"; | |
| 6279 | - } | |
| 6280 | - } else { | |
| 6281 | - // Manual entry — no reference number, no citation. Count it as a USED | |
| 6282 | - // source (plan-mxchat-20260622-c1fe6a): without this, manual/Direct-Content | |
| 6283 | - // entries (empty or mxchat:// source_url) never increment $matches_used, so | |
| 6284 | - // the gate below (`if ($matches_used === 0)`) discards manual-only context on | |
| 6285 | - // the Pinecone backend and the model is told "No reference information was | |
| 6286 | - // found" — even though the testing panel reports used_for_context:true. It | |
| 6287 | - // also corrects the cosmetic sources_used:0 the panel/transcript showed. The | |
| 6288 | - // sibling local/WP-DB builder gates on empty($top_urls), so it never had this | |
| 6289 | - // bug; this brings Pinecone to parity. Manual entries are still uncited (not | |
| 6290 | - // added to $valid_urls, no "URL:" line). | |
| 6291 | - $matches_used++; | |
| 6292 | - $content .= "## Information ##\n"; | |
| 6293 | - $content .= $full_text . "\n\n"; | |
| 6294 | - } | |
| 6295 | - | |
| 6296 | - // Extract any URLs from the text content itself (only if citation links enabled) | |
| 6297 | - if ($citation_links_enabled) { | |
| 6298 | - preg_match_all( | |
| 6299 | - '#\bhttps?://[^\s<>"\']+#i', | |
| 6300 | - $full_text, | |
| 6301 | - $content_urls | |
| 6302 | - ); | |
| 6303 | - if (!empty($content_urls[0])) { | |
| 6304 | - $valid_urls = array_merge($valid_urls, $content_urls[0]); | |
| 6305 | - } | |
| 6306 | - } | |
| 6307 | - | |
| 6308 | - $total_chunks_used += $chunks_in_this_source; | |
| 6309 | - } | |
| 6310 | - } | |
| 6311 | - | |
| 6312 | - // Process ALL matches for testing data (top 10) - with role checking for testing display | |
| 6313 | - $all_matches = []; | |
| 6314 | - foreach ($results['matches'] as $index => $match) { | |
| 6315 | - if ($index >= 10) break; // Limit to top 10 for testing | |
| 6316 | - | |
| 6317 | - $match_id = $match['id'] ?? ''; | |
| 6318 | - | |
| 6319 | - // Check role access for testing display (use cache if available) | |
| 6320 | - $role_restriction = $this->get_single_vector_role($match_id, $match['metadata']); | |
| 6321 | - $has_access = $knowledge_manager->mxchat_user_has_content_access($role_restriction); | |
| 6322 | - | |
| 6323 | - $source_display = ''; | |
| 6324 | - if (!empty($match['metadata']['source_url'])) { | |
| 6325 | - $source_display = $match['metadata']['source_url']; | |
| 6326 | - } else { | |
| 6327 | - $content_preview = strip_tags($match['metadata']['text'] ?? ''); | |
| 6328 | - $content_preview = preg_replace('/\s+/', ' ', $content_preview); | |
| 6329 | - $source_display = substr(trim($content_preview), 0, 50) . '...'; | |
| 6330 | - } | |
| 6331 | - | |
| 6332 | - $match_id_for_display = $match['id'] ?? $index; | |
| 6333 | - | |
| 6334 | - // Check for chunk metadata in Pinecone | |
| 6335 | - $is_chunk = isset($match['metadata']['is_chunked']) && $match['metadata']['is_chunked']; | |
| 6336 | - $chunk_index = isset($match['metadata']['chunk_index']) ? intval($match['metadata']['chunk_index']) : null; | |
| 6337 | - $total_chunks = isset($match['metadata']['total_chunks']) ? intval($match['metadata']['total_chunks']) : null; | |
| 6338 | - | |
| 6339 | - // Also detect chunk from vector ID pattern: {hash}_chunk_{index} | |
| 6340 | - if (!$is_chunk && MxChat_Chunker::is_chunk_vector_id($match_id_for_display)) { | |
| 6341 | - $is_chunk = true; | |
| 6342 | - } | |
| 6343 | - | |
| 6344 | - $all_matches[] = [ | |
| 6345 | - 'document_id' => $match_id_for_display, | |
| 6346 | - 'similarity' => $match['score'], | |
| 6347 | - 'similarity_percentage' => round($match['score'] * 100, 2), | |
| 6348 | - 'above_threshold' => $match['score'] >= $similarity_threshold, | |
| 6349 | - 'source_display' => $source_display, | |
| 6350 | - 'content_preview' => substr(strip_tags($match['metadata']['text'] ?? ''), 0, 100) . '...', | |
| 6351 | - 'used_for_context' => in_array($match_id_for_display, $matches_used_for_context), | |
| 6352 | - 'role_restriction' => $role_restriction, | |
| 6353 | - 'has_access' => $has_access, | |
| 6354 | - 'filtered_out' => !$has_access, | |
| 6355 | - 'is_chunk' => $is_chunk, | |
| 6356 | - 'chunk_index' => $chunk_index, | |
| 6357 | - 'total_chunks' => $total_chunks | |
| 6358 | - ]; | |
| 6359 | - } | |
| 6360 | - | |
| 6361 | - // Store for testing panel | |
| 6362 | - $this->last_similarity_analysis['top_matches'] = $all_matches; | |
| 6363 | - $this->last_similarity_analysis['total_checked'] = count($results['matches']); | |
| 6364 | - $this->last_similarity_analysis['sources_used'] = $matches_used; | |
| 6365 | - $this->last_similarity_analysis['total_chunks_used'] = $total_chunks_used; | |
| 6366 | - | |
| 6367 | - // NEW: Store unique valid URLs for validation | |
| 6368 | - $this->current_valid_urls = array_unique($valid_urls); | |
| 6369 | - | |
| 6370 | - // Allow add-ons to act on similarity results (e.g. WooCommerce product card display) | |
| 6371 | - do_action('mxchat_similarity_results', $this->last_similarity_analysis['top_matches'], $bot_id); | |
| 6372 | - | |
| 6373 | - // Add response guidelines | |
| 6374 | - if ($matches_used === 0) { | |
| 6375 | - $content = "No reference information was found for this query.\n\n"; | |
| 6376 | - } else { | |
| 6377 | - // Build response guidelines based on citation links setting | |
| 6378 | - $content .= "\n## Response Guidelines ##\n" . | |
| 6379 | - "You are an AI Chatbot. Answer naturally and helpfully using only the information from the references above. " . | |
| 6380 | - "Be conversational and friendly, but never mention your knowledge base or training data. " . | |
| 6381 | - "If you don't have specific information or are uncertain about any details, it's always " . | |
| 6382 | - "better to honestly say you don't know rather than making up or guessing at answers. " . | |
| 6383 | - "When information is incomplete, let them know you are unsure.\n\n"; | |
| 6384 | - | |
| 6385 | - // Only add hyperlink instructions if citation links are enabled | |
| 6386 | - if ($citation_links_enabled) { | |
| 6387 | - $content .= "CRITICAL: When creating hyperlinks, always use proper markdown format with descriptive text: " . | |
| 6388 | - "[descriptive text](url). NEVER use empty brackets like [](url). The text in brackets must describe what the link is about. " . | |
| 6389 | - "Only cite references that have a URL. Do not cite or add source labels to Information sections that have no URL."; | |
| 6390 | - } else { | |
| 6391 | - $content .= "IMPORTANT: Do not include any citation links, source URLs, or hyperlinks in your responses. " . | |
| 6392 | - "Simply provide helpful answers based on the reference information without citing sources."; | |
| 6393 | - } | |
| 6394 | - } | |
| 6395 | - | |
| 6396 | - return trim($content); | |
| 6397 | -} | |
| 6398 | - | |
| 6399 | -/** | |
| 6400 | - * Get role restriction for a single vector (with caching) | |
| 6401 | - */ | |
| 6402 | -private function get_single_vector_role($vector_id, $metadata = array()) { | |
| 6403 | - global $wpdb; | |
| 6404 | - | |
| 6405 | - if (empty($vector_id)) { | |
| 6406 | - return 'public'; | |
| 6407 | - } | |
| 6408 | - | |
| 6409 | - // Check cache first | |
| 6410 | - $cache_key = 'mxchat_vector_role_' . $vector_id; | |
| 6411 | - $cached_role = wp_cache_get($cache_key, 'mxchat_vector_roles'); | |
| 6412 | - | |
| 6413 | - if ($cached_role !== false) { | |
| 6414 | - return $cached_role; | |
| 6415 | - } | |
| 6416 | - | |
| 6417 | - $role_restriction = 'public'; | |
| 6418 | - | |
| 6419 | - // First try Pinecone metadata | |
| 6420 | - if (!empty($metadata['role_restriction'])) { | |
| 6421 | - $role_restriction = $metadata['role_restriction']; | |
| 6422 | - } else { | |
| 6423 | - // Check WordPress table for user-modified roles | |
| 6424 | - $roles_table = $wpdb->prefix . 'mxchat_pinecone_roles'; | |
| 6425 | - $stored_role = $wpdb->get_var($wpdb->prepare( | |
| 6426 | - "SELECT role_restriction FROM {$roles_table} WHERE vector_id = %s", | |
| 6427 | - $vector_id | |
| 6428 | - )); | |
| 6429 | - | |
| 6430 | - if ($stored_role) { | |
| 6431 | - $role_restriction = $stored_role; | |
| 6432 | - } | |
| 6433 | - } | |
| 6434 | - | |
| 6435 | - // Cache individual role for 1 hour | |
| 6436 | - wp_cache_set($cache_key, $role_restriction, 'mxchat_vector_roles', 3600); | |
| 6437 | - | |
| 6438 | - return $role_restriction; | |
| 6439 | -} | |
| 6440 | - | |
| 6441 | -/** | |
| 6442 | - * Fetch and reassemble all chunks for a URL from Pinecone | |
| 6443 | - * | |
| 6444 | - * @param string $source_url The source URL to fetch chunks for | |
| 6445 | - * @param array $bot_config Bot-specific Pinecone configuration | |
| 6446 | - * @return string Reassembled content from all chunks | |
| 6447 | - */ | |
| 6448 | -private function reassemble_chunks_from_pinecone($source_url, $bot_config, $max_chunks = 0, &$chunk_count = 0) { | |
| 6449 | - $api_key = $bot_config['api_key'] ?? ''; | |
| 6450 | - $host = $bot_config['host'] ?? ''; | |
| 6451 | - $namespace = $bot_config['namespace'] ?? ''; | |
| 6452 | - | |
| 6453 | - if (empty($host) || empty($api_key)) { | |
| 6454 | - $chunk_count = 0; | |
| 6455 | - return ''; | |
| 6456 | - } | |
| 6457 | - | |
| 6458 | - $base_hash = md5($source_url); | |
| 6459 | - | |
| 6460 | - // Use Pinecone list API to find all chunk vectors with this prefix | |
| 6461 | - $list_url = "https://{$host}/vectors/list"; | |
| 6462 | - | |
| 6463 | - // Limit to max_chunks if specified, otherwise fetch up to 100 | |
| 6464 | - $fetch_limit = ($max_chunks > 0 && $max_chunks < 100) ? $max_chunks : 100; | |
| 6465 | - | |
| 6466 | - $list_body = array( | |
| 6467 | - 'prefix' => $base_hash . '_chunk_', | |
| 6468 | - 'limit' => $fetch_limit | |
| 6469 | - ); | |
| 6470 | - | |
| 6471 | - if (!empty($namespace)) { | |
| 6472 | - $list_body['namespace'] = $namespace; | |
| 6473 | - } | |
| 6474 | - | |
| 6475 | - $list_response = wp_remote_post($list_url, array( | |
| 6476 | - 'headers' => array( | |
| 6477 | - 'Api-Key' => $api_key, | |
| 6478 | - 'accept' => 'application/json', | |
| 6479 | - 'content-type' => 'application/json' | |
| 6480 | - ), | |
| 6481 | - 'body' => wp_json_encode($list_body), | |
| 6482 | - 'timeout' => 30 | |
| 6483 | - )); | |
| 6484 | - | |
| 6485 | - if (is_wp_error($list_response)) { | |
| 6486 | - //error_log('[MXCHAT-CHUNK] List API error: ' . $list_response->get_error_message()); | |
| 6487 | - return ''; | |
| 6488 | - } | |
| 6489 | - | |
| 6490 | - $list_data = json_decode(wp_remote_retrieve_body($list_response), true); | |
| 6491 | - | |
| 6492 | - if (empty($list_data['vectors'])) { | |
| 6493 | - //error_log('[MXCHAT-CHUNK] No chunk vectors found for URL: ' . $source_url); | |
| 6494 | - return ''; | |
| 6495 | - } | |
| 6496 | - | |
| 6497 | - // Extract vector IDs | |
| 6498 | - $vector_ids = array(); | |
| 6499 | - foreach ($list_data['vectors'] as $vector) { | |
| 6500 | - if (isset($vector['id'])) { | |
| 6501 | - $vector_ids[] = $vector['id']; | |
| 6502 | - } | |
| 6503 | - } | |
| 6504 | - | |
| 6505 | - if (empty($vector_ids)) { | |
| 6506 | - return ''; | |
| 6507 | - } | |
| 6508 | - | |
| 6509 | - // Fetch all chunk content | |
| 6510 | - $fetch_url = "https://{$host}/vectors/fetch"; | |
| 6511 | - | |
| 6512 | - $fetch_body = array( | |
| 6513 | - 'ids' => $vector_ids | |
| 6514 | - ); | |
| 6515 | - | |
| 6516 | - if (!empty($namespace)) { | |
| 6517 | - $fetch_body['namespace'] = $namespace; | |
| 6518 | - } | |
| 6519 | - | |
| 6520 | - $fetch_response = wp_remote_post($fetch_url, array( | |
| 6521 | - 'headers' => array( | |
| 6522 | - 'Api-Key' => $api_key, | |
| 6523 | - 'accept' => 'application/json', | |
| 6524 | - 'content-type' => 'application/json' | |
| 6525 | - ), | |
| 6526 | - 'body' => wp_json_encode($fetch_body), | |
| 6527 | - 'timeout' => 30 | |
| 6528 | - )); | |
| 6529 | - | |
| 6530 | - if (is_wp_error($fetch_response)) { | |
| 6531 | - //error_log('[MXCHAT-CHUNK] Fetch API error: ' . $fetch_response->get_error_message()); | |
| 6532 | - return ''; | |
| 6533 | - } | |
| 6534 | - | |
| 6535 | - $fetch_data = json_decode(wp_remote_retrieve_body($fetch_response), true); | |
| 6536 | - | |
| 6537 | - if (empty($fetch_data['vectors'])) { | |
| 6538 | - return ''; | |
| 6539 | - } | |
| 6540 | - | |
| 6541 | - // Sort chunks by index and reassemble | |
| 6542 | - $chunks = array(); | |
| 6543 | - foreach ($fetch_data['vectors'] as $id => $vector) { | |
| 6544 | - $metadata = $vector['metadata'] ?? array(); | |
| 6545 | - $chunk_index = $metadata['chunk_index'] ?? 0; | |
| 6546 | - $text = $metadata['text'] ?? ''; | |
| 6547 | - | |
| 6548 | - // Store chunk with its index | |
| 6549 | - $chunks[$chunk_index] = $text; | |
| 6550 | - } | |
| 6551 | - | |
| 6552 | - // Sort by chunk index | |
| 6553 | - ksort($chunks); | |
| 6554 | - | |
| 6555 | - // Apply chunk limit if specified | |
| 6556 | - if ($max_chunks > 0 && count($chunks) > $max_chunks) { | |
| 6557 | - $chunks = array_slice($chunks, 0, $max_chunks, true); | |
| 6558 | - } | |
| 6559 | - | |
| 6560 | - // Store actual chunk count | |
| 6561 | - $chunk_count = count($chunks); | |
| 6562 | - | |
| 6563 | - // Reassemble content | |
| 6564 | - return implode("\n\n", $chunks); | |
| 6565 | -} | |
| 6566 | - | |
| 6567 | -/** | |
| 6568 | - * Search for relevant content using OpenAI Vector Store (File Search) | |
| 6569 | - * | |
| 6570 | - * @param string $user_query The user's query text | |
| 6571 | - * @param string $bot_id The bot ID | |
| 6572 | - * @param array $vectorstore_config Vector Store configuration | |
| 6573 | - * @return string Formatted context string with references | |
| 6574 | - */ | |
| 6575 | -private function find_relevant_content_openai_vectorstore($user_query, $bot_id = 'default', $vectorstore_config = array()) { | |
| 6576 | - //error_log("MXCHAT DEBUG: find_relevant_content_openai_vectorstore called"); | |
| 6577 | - //error_log(" - bot_id: " . $bot_id); | |
| 6578 | - //error_log(" - user_query length: " . strlen($user_query)); | |
| 6579 | - | |
| 6580 | - // Get OpenAI API key | |
| 6581 | - $mxchat_options = get_option('mxchat_options', array()); | |
| 6582 | - $api_key = $mxchat_options['api_key'] ?? ''; | |
| 6583 | - | |
| 6584 | - // Reset vectorstore error tracking | |
| 6585 | - $this->last_vectorstore_error = null; | |
| 6586 | - | |
| 6587 | - if (empty($api_key)) { | |
| 6588 | - //error_log("MXCHAT DEBUG ERROR: OpenAI API key not configured"); | |
| 6589 | - $this->last_vectorstore_error = 'Vector Store search failed: OpenAI API key is not configured.'; | |
| 6590 | - $this->current_valid_urls = []; | |
| 6591 | - return ''; | |
| 6592 | - } | |
| 6593 | - | |
| 6594 | - // Get Vector Store configuration | |
| 6595 | - if (empty($vectorstore_config)) { | |
| 6596 | - $vectorstore_config = $this->get_bot_vectorstore_config($bot_id); | |
| 6597 | - } | |
| 6598 | - | |
| 6599 | - $vectorstore_ids_string = $vectorstore_config['vectorstore_ids'] ?? ''; | |
| 6600 | - $max_results = $vectorstore_config['max_results'] ?? 5; | |
| 6601 | - | |
| 6602 | - if (empty($vectorstore_ids_string)) { | |
| 6603 | - //error_log("MXCHAT DEBUG ERROR: No Vector Store IDs configured"); | |
| 6604 | - $this->last_vectorstore_error = 'Vector Store search failed: No Vector Store IDs are configured for this bot.'; | |
| 6605 | - $this->current_valid_urls = []; | |
| 6606 | - return ''; | |
| 6607 | - } | |
| 6608 | - | |
| 6609 | - // Parse Vector Store IDs | |
| 6610 | - $vectorstore_ids = array_map('trim', explode(',', $vectorstore_ids_string)); | |
| 6611 | - $vectorstore_ids = array_filter($vectorstore_ids); // Remove empty values | |
| 6612 | - | |
| 6613 | - //error_log("MXCHAT DEBUG: Vector Store IDs: " . implode(', ', $vectorstore_ids)); | |
| 6614 | - //error_log("MXCHAT DEBUG: Max results: " . $max_results); | |
| 6615 | - | |
| 6616 | - // Initialize similarity analysis storage | |
| 6617 | - $this->last_similarity_analysis = [ | |
| 6618 | - 'knowledge_base_type' => 'OpenAI Vector Store', | |
| 6619 | - 'bot_id' => $bot_id, | |
| 6620 | - 'vectorstore_ids' => $vectorstore_ids, | |
| 6621 | - 'top_matches' => [], | |
| 6622 | - 'threshold_used' => 0, | |
| 6623 | - 'total_checked' => 0 | |
| 6624 | - ]; | |
| 6625 | - | |
| 6626 | - $valid_urls = []; | |
| 6627 | - | |
| 6628 | - // Get the selected model | |
| 6629 | - $bot_options = $this->get_bot_options($bot_id); | |
| 6630 | - $current_options = !empty($bot_options) ? $bot_options : $mxchat_options; | |
| 6631 | - $selected_model = $current_options['model'] ?? 'gpt-5.1-chat-latest'; | |
| 6632 | - | |
| 6633 | - // Verify it's an OpenAI model | |
| 6634 | - if (!$this->is_openai_chat_model($selected_model)) { | |
| 6635 | - //error_log("MXCHAT DEBUG ERROR: Vector Store search requires OpenAI model. Current: " . $selected_model); | |
| 6636 | - $this->last_vectorstore_error = 'Vector Store search requires an OpenAI model. Current model: ' . $selected_model; | |
| 6637 | - $this->current_valid_urls = []; | |
| 6638 | - return ''; | |
| 6639 | - } | |
| 6640 | - | |
| 6641 | - // Use OpenAI Responses API with file_search tool | |
| 6642 | - $request_body = array( | |
| 6643 | - 'model' => $selected_model, | |
| 6644 | - 'input' => $user_query, | |
| 6645 | - 'tools' => array( | |
| 6646 | - array( | |
| 6647 | - 'type' => 'file_search', | |
| 6648 | - 'vector_store_ids' => $vectorstore_ids, | |
| 6649 | - 'max_num_results' => intval($max_results) | |
| 6650 | - ) | |
| 6651 | - ), | |
| 6652 | - 'include' => array('output[*].file_search_call.search_results') | |
| 6653 | - ); | |
| 6654 | - | |
| 6655 | - //error_log("MXCHAT VECTORSTORE: ========== REQUEST START =========="); | |
| 6656 | - //error_log("MXCHAT VECTORSTORE: Model: " . $selected_model); | |
| 6657 | - //error_log("MXCHAT VECTORSTORE: Query: " . substr($user_query, 0, 200)); | |
| 6658 | - //error_log("MXCHAT VECTORSTORE: Vector Store IDs: " . implode(', ', $vectorstore_ids)); | |
| 6659 | - //error_log("MXCHAT VECTORSTORE: Max Results: " . $max_results); | |
| 6660 | - //error_log("MXCHAT VECTORSTORE: Request body: " . wp_json_encode($request_body)); | |
| 6661 | - | |
| 6662 | - $response = wp_remote_post('https://api.openai.com/v1/responses', array( | |
| 6663 | - 'headers' => array( | |
| 6664 | - 'Authorization' => 'Bearer ' . $api_key, | |
| 6665 | - 'Content-Type' => 'application/json' | |
| 6666 | - ), | |
| 6667 | - 'body' => wp_json_encode($request_body), | |
| 6668 | - 'timeout' => 60 | |
| 6669 | - )); | |
| 6670 | - | |
| 6671 | - if (is_wp_error($response)) { | |
| 6672 | - //error_log("MXCHAT VECTORSTORE ERROR: WP Error: " . $response->get_error_message()); | |
| 6673 | - $this->last_vectorstore_error = 'Vector Store API request failed: ' . $response->get_error_message(); | |
| 6674 | - $this->current_valid_urls = []; | |
| 6675 | - return ''; | |
| 6676 | - } | |
| 6677 | - | |
| 6678 | - $response_code = wp_remote_retrieve_response_code($response); | |
| 6679 | - //error_log("MXCHAT VECTORSTORE: Response code: " . $response_code); | |
| 6680 | - | |
| 6681 | - $response_body = wp_remote_retrieve_body($response); | |
| 6682 | - //error_log("MXCHAT VECTORSTORE: Raw response (first 2000 chars): " . substr($response_body, 0, 2000)); | |
| 6683 | - | |
| 6684 | - if ($response_code !== 200) { | |
| 6685 | - //error_log("MXCHAT VECTORSTORE ERROR: API error response: " . $response_body); | |
| 6686 | - $api_error_detail = ''; | |
| 6687 | - $decoded_error = json_decode($response_body, true); | |
| 6688 | - if (isset($decoded_error['error']['message'])) { | |
| 6689 | - $api_error_detail = $decoded_error['error']['message']; | |
| 6690 | - } | |
| 6691 | - $this->last_vectorstore_error = 'Vector Store API returned HTTP ' . $response_code . ($api_error_detail ? ': ' . $api_error_detail : ''); | |
| 6692 | - $this->current_valid_urls = []; | |
| 6693 | - return ''; | |
| 6694 | - } | |
| 6695 | - $result = json_decode($response_body, true); | |
| 6696 | - | |
| 6697 | - if (json_last_error() !== JSON_ERROR_NONE) { | |
| 6698 | - //error_log("MXCHAT VECTORSTORE ERROR: JSON decode error: " . json_last_error_msg()); | |
| 6699 | - $this->last_vectorstore_error = 'Vector Store response could not be parsed: ' . json_last_error_msg(); | |
| 6700 | - $this->current_valid_urls = []; | |
| 6701 | - return ''; | |
| 6702 | - } | |
| 6703 | - | |
| 6704 | - // Debug: Log the structure of the result | |
| 6705 | - //error_log("MXCHAT VECTORSTORE: Result keys: " . implode(', ', array_keys($result))); | |
| 6706 | - if (isset($result['output'])) { | |
| 6707 | - //error_log("MXCHAT VECTORSTORE: Output count: " . count($result['output'])); | |
| 6708 | - foreach ($result['output'] as $idx => $out) { | |
| 6709 | - //error_log("MXCHAT VECTORSTORE: Output[$idx] type: " . ($out['type'] ?? 'unknown')); | |
| 6710 | - //error_log("MXCHAT VECTORSTORE: Output[$idx] keys: " . implode(', ', array_keys($out))); | |
| 6711 | - } | |
| 6712 | - } else { | |
| 6713 | - //error_log("MXCHAT VECTORSTORE: No 'output' key in result!"); | |
| 6714 | - } | |
| 6715 | - | |
| 6716 | - // Extract file search results from the response | |
| 6717 | - $content = ''; | |
| 6718 | - $matches_used = 0; | |
| 6719 | - $all_matches = []; | |
| 6720 | - | |
| 6721 | - // The Responses API returns output array with tool results | |
| 6722 | - if (isset($result['output']) && is_array($result['output'])) { | |
| 6723 | - foreach ($result['output'] as $output_item) { | |
| 6724 | - // Look for file_search_call results | |
| 6725 | - if (isset($output_item['type']) && $output_item['type'] === 'file_search_call') { | |
| 6726 | - //error_log("MXCHAT VECTORSTORE: Found file_search_call output item"); | |
| 6727 | - //error_log("MXCHAT VECTORSTORE: file_search_call keys: " . implode(', ', array_keys($output_item))); | |
| 6728 | - | |
| 6729 | - // Check for search_results in the output item directly | |
| 6730 | - $search_results = $output_item['search_results'] ?? $output_item['results'] ?? []; | |
| 6731 | - //error_log("MXCHAT VECTORSTORE: Search results count: " . count($search_results)); | |
| 6732 | - | |
| 6733 | - if (empty($search_results)) { | |
| 6734 | - //error_log("MXCHAT VECTORSTORE: No search results found in file_search_call"); | |
| 6735 | - //error_log("MXCHAT VECTORSTORE: file_search_call content: " . wp_json_encode($output_item)); | |
| 6736 | - } | |
| 6737 | - | |
| 6738 | - foreach ($search_results as $index => $search_result) { | |
| 6739 | - $filename = $search_result['filename'] ?? ''; | |
| 6740 | - $score = $search_result['score'] ?? 0; | |
| 6741 | - $text_content = ''; | |
| 6742 | - | |
| 6743 | - // Extract text content from the result | |
| 6744 | - // The text can be directly on the result OR nested under content array | |
| 6745 | - if (isset($search_result['text']) && !empty($search_result['text'])) { | |
| 6746 | - // Direct text field (OpenAI's actual format) | |
| 6747 | - $text_content = $search_result['text']; | |
| 6748 | - //error_log("MXCHAT VECTORSTORE: Found text directly on result[$index], length: " . strlen($text_content)); | |
| 6749 | - } elseif (isset($search_result['content']) && is_array($search_result['content'])) { | |
| 6750 | - // Nested content array format | |
| 6751 | - foreach ($search_result['content'] as $content_item) { | |
| 6752 | - if (isset($content_item['text'])) { | |
| 6753 | - $text_content .= $content_item['text'] . "\n"; | |
| 6754 | - } | |
| 6755 | - } | |
| 6756 | - //error_log("MXCHAT VECTORSTORE: Found text in content array for result[$index], length: " . strlen($text_content)); | |
| 6757 | - } else { | |
| 6758 | - //error_log("MXCHAT VECTORSTORE: No text found for result[$index]. Keys: " . implode(', ', array_keys($search_result))); | |
| 6759 | - } | |
| 6760 | - | |
| 6761 | - if (!empty($text_content)) { | |
| 6762 | - $content .= "## Reference " . ($matches_used + 1) . " ##\n"; | |
| 6763 | - $content .= trim($text_content) . "\n\n"; | |
| 6764 | - | |
| 6765 | - if (!empty($filename)) { | |
| 6766 | - $content .= "Source: " . $filename . "\n\n"; | |
| 6767 | - } | |
| 6768 | - | |
| 6769 | - // Extract URLs from content | |
| 6770 | - preg_match_all( | |
| 6771 | - '#\bhttps?://[^\s<>"\']+#i', | |
| 6772 | - $text_content, | |
| 6773 | - $content_urls | |
| 6774 | - ); | |
| 6775 | - if (!empty($content_urls[0])) { | |
| 6776 | - $valid_urls = array_merge($valid_urls, $content_urls[0]); | |
| 6777 | - } | |
| 6778 | - | |
| 6779 | - $matches_used++; | |
| 6780 | - } | |
| 6781 | - | |
| 6782 | - // Store for similarity analysis | |
| 6783 | - $all_matches[] = [ | |
| 6784 | - 'document_id' => $filename ?: ('result_' . $index), | |
| 6785 | - 'similarity' => $score, | |
| 6786 | - 'similarity_percentage' => round($score * 100, 2), | |
| 6787 | - 'above_threshold' => true, | |
| 6788 | - 'source_display' => $filename, | |
| 6789 | - 'content_preview' => substr(strip_tags($text_content), 0, 100) . '...', | |
| 6790 | - 'used_for_context' => true, | |
| 6791 | - 'role_restriction' => 'public', | |
| 6792 | - 'has_access' => true, | |
| 6793 | - 'filtered_out' => false | |
| 6794 | - ]; | |
| 6795 | - } | |
| 6796 | - } | |
| 6797 | - | |
| 6798 | - // Also check for message content with annotations (citations) | |
| 6799 | - if (isset($output_item['type']) && $output_item['type'] === 'message') { | |
| 6800 | - if (isset($output_item['content']) && is_array($output_item['content'])) { | |
| 6801 | - foreach ($output_item['content'] as $content_block) { | |
| 6802 | - if (isset($content_block['annotations']) && is_array($content_block['annotations'])) { | |
| 6803 | - foreach ($content_block['annotations'] as $annotation) { | |
| 6804 | - if (isset($annotation['filename'])) { | |
| 6805 | - $filename = $annotation['filename']; | |
| 6806 | - $score = $annotation['score'] ?? 0; | |
| 6807 | - $text_content = ''; | |
| 6808 | - | |
| 6809 | - if (isset($annotation['content']) && is_array($annotation['content'])) { | |
| 6810 | - foreach ($annotation['content'] as $ann_content) { | |
| 6811 | - if (isset($ann_content['text'])) { | |
| 6812 | - $text_content .= $ann_content['text'] . "\n"; | |
| 6813 | - } | |
| 6814 | - } | |
| 6815 | - } | |
| 6816 | - | |
| 6817 | - if (!empty($text_content) && $matches_used < $max_results) { | |
| 6818 | - $content .= "## Reference " . ($matches_used + 1) . " ##\n"; | |
| 6819 | - $content .= trim($text_content) . "\n\n"; | |
| 6820 | - $content .= "Source: " . $filename . "\n\n"; | |
| 6821 | - | |
| 6822 | - preg_match_all( | |
| 6823 | - '#\bhttps?://[^\s<>"\']+#i', | |
| 6824 | - $text_content, | |
| 6825 | - $content_urls | |
| 6826 | - ); | |
| 6827 | - if (!empty($content_urls[0])) { | |
| 6828 | - $valid_urls = array_merge($valid_urls, $content_urls[0]); | |
| 6829 | - } | |
| 6830 | - | |
| 6831 | - $matches_used++; | |
| 6832 | - | |
| 6833 | - $all_matches[] = [ | |
| 6834 | - 'document_id' => $filename, | |
| 6835 | - 'similarity' => $score, | |
| 6836 | - 'similarity_percentage' => round($score * 100, 2), | |
| 6837 | - 'above_threshold' => true, | |
| 6838 | - 'source_display' => $filename, | |
| 6839 | - 'content_preview' => substr(strip_tags($text_content), 0, 100) . '...', | |
| 6840 | - 'used_for_context' => true, | |
| 6841 | - 'role_restriction' => 'public', | |
| 6842 | - 'has_access' => true, | |
| 6843 | - 'filtered_out' => false | |
| 6844 | - ]; | |
| 6845 | - } | |
| 6846 | - } | |
| 6847 | - } | |
| 6848 | - } | |
| 6849 | - } | |
| 6850 | - } | |
| 6851 | - } | |
| 6852 | - } | |
| 6853 | - } | |
| 6854 | - | |
| 6855 | - // Store for testing panel | |
| 6856 | - $this->last_similarity_analysis['top_matches'] = $all_matches; | |
| 6857 | - $this->last_similarity_analysis['total_checked'] = count($all_matches); | |
| 6858 | - | |
| 6859 | - // Store unique valid URLs for validation | |
| 6860 | - $this->current_valid_urls = array_unique($valid_urls); | |
| 6861 | - | |
| 6862 | - // Allow add-ons to act on similarity results (e.g. WooCommerce product card display) | |
| 6863 | - do_action('mxchat_similarity_results', $this->last_similarity_analysis['top_matches'], $bot_id); | |
| 6864 | - | |
| 6865 | - //error_log("MXCHAT VECTORSTORE: ========== SEARCH COMPLETE =========="); | |
| 6866 | - //error_log("MXCHAT VECTORSTORE: Matches used: " . $matches_used); | |
| 6867 | - //error_log("MXCHAT VECTORSTORE: All matches count: " . count($all_matches)); | |
| 6868 | - //error_log("MXCHAT VECTORSTORE: Content length: " . strlen($content)); | |
| 6869 | - if ($matches_used > 0) { | |
| 6870 | - //error_log("MXCHAT VECTORSTORE: Content preview: " . substr($content, 0, 500)); | |
| 6871 | - } | |
| 6872 | - | |
| 6873 | - // Check if citation links are enabled | |
| 6874 | - $citation_links_enabled = ($mxchat_options['citation_links_toggle'] ?? 'on') === 'on'; | |
| 6875 | - | |
| 6876 | - // Add response guidelines | |
| 6877 | - if ($matches_used === 0) { | |
| 6878 | - //error_log("MXCHAT VECTORSTORE: No matches found - returning empty reference message"); | |
| 6879 | - $content = "No reference information was found for this query.\n\n"; | |
| 6880 | - } else { | |
| 6881 | - // Build response guidelines based on citation links setting | |
| 6882 | - $content .= "\n## Response Guidelines ##\n" . | |
| 6883 | - "You are an AI Chatbot. Answer naturally and helpfully using only the information from the references above. " . | |
| 6884 | - "Be conversational and friendly, but never mention your knowledge base or training data. " . | |
| 6885 | - "If you don't have specific information or are uncertain about any details, it's always " . | |
| 6886 | - "better to honestly say you don't know rather than making up or guessing at answers. " . | |
| 6887 | - "When information is incomplete, let them know you are unsure.\n\n"; | |
| 6888 | - | |
| 6889 | - // Only add hyperlink instructions if citation links are enabled | |
| 6890 | - if ($citation_links_enabled) { | |
| 6891 | - $content .= "CRITICAL: When creating hyperlinks, always use proper markdown format with descriptive text: " . | |
| 6892 | - "[descriptive text](url). NEVER use empty brackets like [](url). The text in brackets must describe what the link is about."; | |
| 6893 | - } else { | |
| 6894 | - $content .= "IMPORTANT: Do not include any citation links, source URLs, or hyperlinks in your responses. " . | |
| 6895 | - "Simply provide helpful answers based on the reference information without citing sources."; | |
| 6896 | - } | |
| 6897 | - } | |
| 6898 | - | |
| 6899 | - //error_log("MXCHAT DEBUG: Vector Store search complete. Matches used: " . $matches_used); | |
| 6900 | - | |
| 6901 | - return trim($content); | |
| 6902 | -} | |
| 6903 | - | |
| 6904 | -/** | |
| 6905 | - * Check if the given model is an OpenAI chat model | |
| 6906 | - * | |
| 6907 | - * @param string $model The model ID | |
| 6908 | - * @return bool True if it's an OpenAI model | |
| 6909 | - */ | |
| 6910 | -private function is_openai_chat_model($model) { | |
| 6911 | - $openai_prefixes = array('gpt-', 'o1-', 'o3-'); | |
| 6912 | - foreach ($openai_prefixes as $prefix) { | |
| 6913 | - if (strpos($model, $prefix) === 0) { | |
| 6914 | - return true; | |
| 6915 | - } | |
| 6916 | - } | |
| 6917 | - return false; | |
| 6918 | -} | |
| 6919 | - | |
| 6920 | -/** | |
| 6921 | - * Get bot-specific Vector Store configuration | |
| 6922 | - * | |
| 6923 | - * @param string $bot_id The bot ID | |
| 6924 | - * @return array Configuration array | |
| 6925 | - */ | |
| 6926 | -private function get_bot_vectorstore_config($bot_id = 'default') { | |
| 6927 | - $vectorstore_options = get_option('mxchat_openai_vectorstore_options', array()); | |
| 6928 | - | |
| 6929 | - // Default global settings | |
| 6930 | - $default_config = array( | |
| 6931 | - 'use_vectorstore' => ($vectorstore_options['mxchat_use_openai_vectorstore'] ?? '0') === '1', | |
| 6932 | - 'vectorstore_ids' => $vectorstore_options['mxchat_vectorstore_ids'] ?? '', | |
| 6933 | - 'max_results' => $vectorstore_options['mxchat_vectorstore_max_results'] ?? 5 | |
| 6934 | - ); | |
| 6935 | - | |
| 6936 | - // Allow multi-bot plugin to override with bot-specific settings | |
| 6937 | - $bot_config = apply_filters('mxchat_get_bot_vectorstore_config', $default_config, $bot_id); | |
| 6938 | - | |
| 6939 | - // Preserve max_results from global settings if not set in bot config | |
| 6940 | - if (!isset($bot_config['max_results'])) { | |
| 6941 | - $bot_config['max_results'] = $default_config['max_results']; | |
| 6942 | - } | |
| 6943 | - | |
| 6944 | - return $bot_config; | |
| 6945 | -} | |
| 6946 | - | |
| 6947 | -private function mxchat_find_relevant_products($user_embedding) { | |
| 6948 | - //error_log('MXChat Vector Search: Starting product search...'); | |
| 6949 | - | |
| 6950 | - // Retrieve the add-on settings from the database | |
| 6951 | - $addon_options = get_option('mxchat_pinecone_addon_options', array()); | |
| 6952 | - | |
| 6953 | - // Determine whether Pinecone is enabled | |
| 6954 | - $use_pinecone = (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1') ? 1 : 0; | |
| 6955 | - | |
| 6956 | - //error_log('Pinecone enabled flag: ' . $use_pinecone); | |
| 6957 | - | |
| 6958 | - if ($use_pinecone === 1) { | |
| 6959 | - //error_log('MXChat Vector Search: Using Pinecone database for products'); | |
| 6960 | - return $this->find_relevant_products_pinecone($user_embedding); | |
| 6961 | - } else { | |
| 6962 | - //error_log('MXChat Vector Search: Using WordPress database for products'); | |
| 6963 | - return $this->find_relevant_products_wordpress($user_embedding); | |
| 6964 | - } | |
| 6965 | -} | |
| 6966 | -private function find_relevant_products_wordpress($user_embedding) { | |
| 6967 | - global $wpdb; | |
| 6968 | - $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content'; | |
| 6969 | - | |
| 6970 | - if (!is_array($user_embedding)) { | |
| 6971 | - return ''; | |
| 6972 | - } | |
| 6973 | - | |
| 6974 | - // Streaming top-K pass: scan rows in small batches, keep only the top 3 | |
| 6975 | - // results above the similarity threshold. Peak memory is bounded by | |
| 6976 | - // $batch_size embedding rows plus a 3-element top list. | |
| 6977 | - $batch_size = 250; | |
| 6978 | - $similarity_threshold = 0.85; | |
| 6979 | - $top_k = 3; | |
| 6980 | - $top_results = []; | |
| 6981 | - $offset = 0; | |
| 6982 | - | |
| 6983 | - do { | |
| 6984 | - $batch = $wpdb->get_results($wpdb->prepare( | |
| 6985 | - "SELECT id, embedding_vector | |
| 6986 | - FROM {$system_prompt_table} | |
| 6987 | - LIMIT %d OFFSET %d", | |
| 6988 | - $batch_size, | |
| 6989 | - $offset | |
| 6990 | - )); | |
| 6991 | - | |
| 6992 | - if (empty($batch)) { | |
| 6993 | - break; | |
| 6994 | - } | |
| 6995 | - | |
| 6996 | - foreach ($batch as $row) { | |
| 6997 | - $database_embedding = $row->embedding_vector | |
| 6998 | - ? unserialize($row->embedding_vector, ['allowed_classes' => false]) | |
| 6999 | - : null; | |
| 7000 | - | |
| 7001 | - if (!is_array($database_embedding)) { | |
| 7002 | - unset($database_embedding); | |
| 7003 | - continue; | |
| 7004 | - } | |
| 7005 | - | |
| 7006 | - $similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $database_embedding); | |
| 7007 | - unset($database_embedding); | |
| 7008 | - | |
| 7009 | - if ($similarity < $similarity_threshold) { | |
| 7010 | - continue; | |
| 7011 | - } | |
| 7012 | - | |
| 7013 | - // Insert into bounded top-K (kept sorted descending) | |
| 7014 | - if (count($top_results) < $top_k) { | |
| 7015 | - $top_results[] = ['id' => $row->id, 'similarity' => $similarity]; | |
| 7016 | - usort($top_results, function ($a, $b) { | |
| 7017 | - return $b['similarity'] <=> $a['similarity']; | |
| 7018 | - }); | |
| 7019 | - } elseif ($similarity > $top_results[$top_k - 1]['similarity']) { | |
| 7020 | - $top_results[$top_k - 1] = ['id' => $row->id, 'similarity' => $similarity]; | |
| 7021 | - usort($top_results, function ($a, $b) { | |
| 7022 | - return $b['similarity'] <=> $a['similarity']; | |
| 7023 | - }); | |
| 7024 | - } | |
| 7025 | - } | |
| 7026 | - | |
| 7027 | - unset($batch); | |
| 7028 | - $offset += $batch_size; | |
| 7029 | - } while (true); | |
| 7030 | - | |
| 7031 | - if (empty($top_results)) { | |
| 7032 | - return ''; | |
| 7033 | - } | |
| 7034 | - | |
| 7035 | - $content = ''; | |
| 7036 | - foreach ($top_results as $result) { | |
| 7037 | - $chunk_content = $this->fetch_content_with_product_links($result['id']); | |
| 7038 | - $content .= $chunk_content . "\n\n"; | |
| 7039 | - } | |
| 7040 | - | |
| 7041 | - return trim($content); | |
| 7042 | -} | |
| 7043 | - | |
| 7044 | - | |
| 7045 | -private function find_relevant_products_pinecone($user_embedding) { | |
| 7046 | - //error_log('Starting Pinecone product search...'); | |
| 7047 | - | |
| 7048 | - $options = get_option('mxchat_pinecone_addon_options', array()); | |
| 7049 | - $api_key = $options['mxchat_pinecone_api_key'] ?? ''; | |
| 7050 | - $host = $options['mxchat_pinecone_host'] ?? ''; | |
| 7051 | - | |
| 7052 | - if (empty($host) || empty($api_key)) { | |
| 7053 | - //error_log('Pinecone credentials not properly configured for product search'); | |
| 7054 | - return ''; | |
| 7055 | - } | |
| 7056 | - | |
| 7057 | - $similarity_threshold = 0.85; | |
| 7058 | - $api_endpoint = "https://{$host}/query"; | |
| 7059 | - | |
| 7060 | - $request_body = array( | |
| 7061 | - 'vector' => $user_embedding, | |
| 7062 | - 'topK' => 5, | |
| 7063 | - 'includeMetadata' => true, | |
| 7064 | - 'includeValues' => true, | |
| 7065 | - 'filter' => array( | |
| 7066 | - 'type' => 'product' | |
| 7067 | - ) | |
| 7068 | - ); | |
| 7069 | - | |
| 7070 | - //error_log('Sending request to Pinecone with body: ' . wp_json_encode($request_body)); | |
| 7071 | - | |
| 7072 | - $response = wp_remote_post($api_endpoint, array( | |
| 7073 | - 'headers' => array( | |
| 7074 | - 'Api-Key' => $api_key, | |
| 7075 | - 'accept' => 'application/json', | |
| 7076 | - 'content-type' => 'application/json' | |
| 7077 | - ), | |
| 7078 | - 'body' => wp_json_encode($request_body), | |
| 7079 | - 'timeout' => 30 | |
| 7080 | - )); | |
| 7081 | - | |
| 7082 | - if (is_wp_error($response)) { | |
| 7083 | - //error_log('Pinecone product query error: ' . $response->get_error_message()); | |
| 7084 | - return ''; | |
| 7085 | - } | |
| 7086 | - | |
| 7087 | - $response_code = wp_remote_retrieve_response_code($response); | |
| 7088 | - //error_log('Pinecone response code: ' . $response_code); | |
| 7089 | - | |
| 7090 | - if ($response_code !== 200) { | |
| 7091 | - //error_log('Pinecone API error during product search: ' . wp_remote_retrieve_body($response)); | |
| 7092 | - return ''; | |
| 7093 | - } | |
| 7094 | - | |
| 7095 | - $results = json_decode(wp_remote_retrieve_body($response), true); | |
| 7096 | - //error_log('Pinecone raw response: ' . wp_remote_retrieve_body($response)); | |
| 7097 | - | |
| 7098 | - if (empty($results['matches'])) { | |
| 7099 | - //error_log('No matches found in Pinecone response'); | |
| 7100 | - return ''; | |
| 7101 | - } | |
| 7102 | - | |
| 7103 | - $content = ''; | |
| 7104 | - foreach ($results['matches'] as $match) { | |
| 7105 | - if ($match['score'] < $similarity_threshold) { | |
| 7106 | - //error_log("Match below threshold: " . $match['score']); | |
| 7107 | - continue; | |
| 7108 | - } | |
| 7109 | - | |
| 7110 | - if (!empty($match['metadata']['text'])) { | |
| 7111 | - $content .= $match['metadata']['text']; | |
| 7112 | - if (!empty($match['metadata']['source_url'])) { | |
| 7113 | - $content .= "\n\nFor more details, check out this product: " . esc_url($match['metadata']['source_url']); | |
| 7114 | - } | |
| 7115 | - $content .= "\n\n"; | |
| 7116 | - } | |
| 7117 | - } | |
| 7118 | - | |
| 7119 | - return trim($content); | |
| 7120 | -} | |
| 7121 | - | |
| 7122 | - | |
| 7123 | -private function fetch_content_with_product_links($most_relevant_id) { | |
| 7124 | - global $wpdb; | |
| 7125 | - $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content'; | |
| 7126 | - | |
| 7127 | - // Fetch the article content and associated product URL | |
| 7128 | - $query = $wpdb->prepare("SELECT article_content, source_url FROM {$system_prompt_table} WHERE id = %d", $most_relevant_id); | |
| 7129 | - $result = $wpdb->get_row($query); | |
| 7130 | - | |
| 7131 | - if ($result) { | |
| 7132 | - // Append the product link to the content if available | |
| 7133 | - $content = $result->article_content; | |
| 7134 | - if (!empty($result->source_url)) { | |
| 7135 | - $content .= "\n\nFor more details, check out this product: " . esc_url($result->source_url); | |
| 7136 | - } | |
| 7137 | - return $content; | |
| 7138 | - } | |
| 7139 | - | |
| 7140 | - return null; | |
| 7141 | -} | |
| 7142 | - | |
| 7143 | -/** | |
| 7144 | - * Get system instructions for a specific bot or default | |
| 7145 | - * Checks for multi-bot add-on and uses bot-specific instructions if available | |
| 7146 | - * Automatically strips URLs if citation links are disabled | |
| 7147 | - * Replaces {visitor_name} placeholder with actual visitor name if available | |
| 7148 | - * | |
| 7149 | - * @param string $bot_id The bot ID to get instructions for | |
| 7150 | - * @param string $session_id Optional session ID to lookup visitor name | |
| 7151 | - */ | |
| 7152 | -private function get_system_instructions($bot_id = 'default', $session_id = '') { | |
| 7153 | - $instructions = ''; | |
| 7154 | - | |
| 7155 | - // Check if multi-bot add-on is active | |
| 7156 | - if (class_exists('MxChat_Multi_Bot_Core_Manager') && $bot_id !== 'default') { | |
| 7157 | - // Get bot-specific options from multi-bot add-on | |
| 7158 | - $bot_options = apply_filters('mxchat_get_bot_options', array(), $bot_id); | |
| 7159 | - | |
| 7160 | - // If bot has custom system instructions, use those | |
| 7161 | - if (!empty($bot_options['system_prompt_instructions'])) { | |
| 7162 | - $instructions = $bot_options['system_prompt_instructions']; | |
| 7163 | - } | |
| 7164 | - } | |
| 7165 | - | |
| 7166 | - // Fall back to default system instructions | |
| 7167 | - if (empty($instructions)) { | |
| 7168 | - $instructions = isset($this->options['system_prompt_instructions']) ? $this->options['system_prompt_instructions'] : ''; | |
| 7169 | - } | |
| 7170 | - | |
| 7171 | - // Check if citation links are disabled - if so, strip URLs from instructions | |
| 7172 | - $fresh_options = get_option('mxchat_options', []); | |
| 7173 | - $citation_links_enabled = isset($fresh_options['citation_links_toggle']) ? ($fresh_options['citation_links_toggle'] === 'on') : true; | |
| 7174 | - | |
| 7175 | - if (!$citation_links_enabled && !empty($instructions)) { | |
| 7176 | - $instructions = preg_replace('#\bhttps?://[^\s<>"\']+#i', '', $instructions); | |
| 7177 | - $instructions = preg_replace('/\s+/', ' ', trim($instructions)); // Clean up extra spaces | |
| 7178 | - } | |
| 7179 | - | |
| 7180 | - // Replace {visitor_name} placeholder with actual visitor name if available | |
| 7181 | - if (!empty($instructions) && !empty($session_id) && stripos($instructions, '{visitor_name}') !== false) { | |
| 7182 | - $name_option_key = "mxchat_name_{$session_id}"; | |
| 7183 | - $visitor_name = get_option($name_option_key, ''); | |
| 7184 | - | |
| 7185 | - if (!empty($visitor_name)) { | |
| 7186 | - $instructions = str_ireplace('{visitor_name}', sanitize_text_field($visitor_name), $instructions); | |
| 7187 | - } else { | |
| 7188 | - // Remove placeholder if no name is available | |
| 7189 | - $instructions = str_ireplace('{visitor_name}', '', $instructions); | |
| 7190 | - $instructions = preg_replace('/\s{2,}/', ' ', trim($instructions)); // Clean up extra spaces | |
| 7191 | - } | |
| 7192 | - } | |
| 7193 | - | |
| 7194 | - // Allow developers to filter system instructions and process shortcodes | |
| 7195 | - $instructions = apply_filters('mxchat_system_instructions', $instructions, $bot_id, $session_id); | |
| 7196 | - $instructions = do_shortcode($instructions); | |
| 7197 | - | |
| 7198 | - return $instructions; | |
| 7199 | -} | |
| 7200 | -/** | |
| 7201 | - * Get the current bot ID from session or request context | |
| 7202 | - */ | |
| 7203 | -private function get_current_bot_id($session_id = '') { | |
| 7204 | - // First, check if bot_id is passed in the current request | |
| 7205 | - if (isset($_POST['bot_id']) && !empty($_POST['bot_id'])) { | |
| 7206 | - return sanitize_key($_POST['bot_id']); | |
| 7207 | - } | |
| 7208 | - | |
| 7209 | - // If not in POST, try to get it from session data | |
| 7210 | - if (!empty($session_id)) { | |
| 7211 | - $bot_id = get_option("mxchat_session_bot_{$session_id}", ''); | |
| 7212 | - if (!empty($bot_id)) { | |
| 7213 | - return $bot_id; | |
| 7214 | - } | |
| 7215 | - } | |
| 7216 | - | |
| 7217 | - // Fall back to default | |
| 7218 | - return 'default'; | |
| 7219 | -} | |
| 7220 | -/* ====================================================================== * | |
| 7221 | - * Native function-calling loop (plan-mxchat-20260617-a41dee) | |
| 7222 | - * | |
| 7223 | - * Model-driven tool use. The model is offered MxChat's enabled callbacks as | |
| 7224 | - * tools (sourced from MxChat_Tool_Registry, the single source the admin AI | |
| 7225 | - * Tools checklist also reads). When the model calls a tool, the matching | |
| 7226 | - * callback runs through its EXISTING permission checks, its output is fed | |
| 7227 | - * back, and the loop continues up to a depth cap. INDEPENDENT of the | |
| 7228 | - * intent→callback router — it runs only after intents miss, and works with | |
| 7229 | - * ZERO Actions created. | |
| 7230 | - * | |
| 7231 | - * Entered ONLY when: function calling is enabled + the active model is | |
| 7232 | - * tool-capable + at least one tool is enabled. Default-off, so existing | |
| 7233 | - * installs never enter this branch (byte-for-byte unchanged behavior). The | |
| 7234 | - * tool round is buffered (non-streaming) per the plan; the final answer is | |
| 7235 | - * emitted via the same SSE/JSON envelopes the normal path uses. | |
| 7236 | - * ====================================================================== */ | |
| 7237 | - | |
| 7238 | -/** Gate: should the function-calling loop handle this turn? */ | |
| 7239 | -private function mxchat_fc_should_run($selected_model) { | |
| 7240 | - if (!class_exists('MxChat_Tool_Registry') || !MxChat_Tool_Registry::is_enabled()) { | |
| 7241 | - return false; | |
| 7242 | - } | |
| 7243 | - if (class_exists('MxChat_Model_Catalog') && !MxChat_Model_Catalog::supports_tools($selected_model)) { | |
| 7244 | - return false; | |
| 7245 | - } | |
| 7246 | - $tools = MxChat_Tool_Registry::enabled_tools(); | |
| 7247 | - return !empty($tools); | |
| 7248 | -} | |
| 7249 | - | |
| 7250 | -private function mxchat_fc_log($msg) { | |
| 7251 | - if (defined('MXCHAT_DEV_MODE') && MXCHAT_DEV_MODE) { | |
| 7252 | - error_log('[MxChat FC] ' . $msg); | |
| 7253 | - } | |
| 7254 | -} | |
| 7255 | - | |
| 7256 | -/** | |
| 7257 | - * Resolve provider transport details. Returns null when FC can't run for this | |
| 7258 | - * model/config (missing key, unsupported provider) so the caller falls back to | |
| 7259 | - * the normal path. OpenAI/xAI/DeepSeek/OpenRouter/Custom share the | |
| 7260 | - * OpenAI-compatible 'openai' family; Claude and Gemini are distinct. | |
| 7261 | - */ | |
| 7262 | -private function mxchat_fc_resolve_provider($selected_model, $opts) { | |
| 7263 | - // Anthropic retired claude-opus-4-20250514 / claude-sonnet-4-20250514 on 2026-06-15. | |
| 7264 | - // Read-time rescue: remap a saved dead ID to the current equivalent before the API call. | |
| 7265 | - if ($selected_model === 'claude-opus-4-20250514') { $selected_model = 'claude-opus-4-8'; } | |
| 7266 | - elseif ($selected_model === 'claude-sonnet-4-20250514') { $selected_model = 'claude-sonnet-4-6'; } | |
| 7267 | - if ($selected_model === 'openrouter') { | |
| 7268 | - $model = isset($opts['openrouter_selected_model']) ? $opts['openrouter_selected_model'] : ''; | |
| 7269 | - $key = isset($opts['openrouter_api_key']) ? $opts['openrouter_api_key'] : ''; | |
| 7270 | - if ($model === '' || $key === '') return null; | |
| 7271 | - return array('family'=>'openai','model'=>$model,'url'=>'https://openrouter.ai/api/v1/chat/completions', | |
| 7272 | - 'headers'=>array('Content-Type'=>'application/json','Authorization'=>'Bearer '.$key),'tag'=>'openai'); | |
| 7273 | - } | |
| 7274 | - $prefix = strtolower(explode('-', $selected_model)[0]); | |
| 7275 | - switch ($prefix) { | |
| 7276 | - case 'gpt': case 'o1': case 'o3': case 'o4': | |
| 7277 | - $key = isset($opts['api_key']) ? $opts['api_key'] : ''; | |
| 7278 | - if ($key === '') return null; | |
| 7279 | - return array('family'=>'openai','model'=>$selected_model,'url'=>'https://api.openai.com/v1/chat/completions', | |
| 7280 | - 'headers'=>array('Content-Type'=>'application/json','Authorization'=>'Bearer '.$key),'tag'=>'openai'); | |
| 7281 | - case 'claude': | |
| 7282 | - $key = isset($opts['claude_api_key']) ? $opts['claude_api_key'] : ''; | |
| 7283 | - if ($key === '') return null; | |
| 7284 | - return array('family'=>'anthropic','model'=>$selected_model,'url'=>'https://api.anthropic.com/v1/messages', | |
| 7285 | - 'headers'=>array('Content-Type'=>'application/json','x-api-key'=>$key,'anthropic-version'=>'2023-06-01'),'tag'=>'anthropic'); | |
| 7286 | - case 'gemini': | |
| 7287 | - $key = isset($opts['gemini_api_key']) ? $opts['gemini_api_key'] : ''; | |
| 7288 | - if ($key === '') return null; | |
| 7289 | - return array('family'=>'gemini','model'=>$selected_model,'key'=>$key,'tag'=>'gemini'); | |
| 7290 | - case 'grok': case 'xai': | |
| 7291 | - $key = isset($opts['xai_api_key']) ? $opts['xai_api_key'] : ''; | |
| 7292 | - if ($key === '') return null; | |
| 7293 | - return array('family'=>'openai','model'=>$selected_model,'url'=>'https://api.x.ai/v1/chat/completions', | |
| 7294 | - 'headers'=>array('Content-Type'=>'application/json','Authorization'=>'Bearer '.$key),'tag'=>'xai'); | |
| 7295 | - case 'deepseek': | |
| 7296 | - $key = isset($opts['deepseek_api_key']) ? $opts['deepseek_api_key'] : ''; | |
| 7297 | - if ($key === '') return null; | |
| 7298 | - return array('family'=>'openai','model'=>$selected_model,'url'=>'https://api.deepseek.com/v1/chat/completions', | |
| 7299 | - 'headers'=>array('Content-Type'=>'application/json','Authorization'=>'Bearer '.$key),'tag'=>'openai'); | |
| 7300 | - case 'custom': | |
| 7301 | - $base = isset($opts['custom_provider_base_url']) ? rtrim($opts['custom_provider_base_url'], '/') : ''; | |
| 7302 | - $key = isset($opts['custom_provider_api_key']) ? $opts['custom_provider_api_key'] : ''; | |
| 7303 | - $model = isset($opts['custom_provider_model']) ? $opts['custom_provider_model'] : ''; | |
| 7304 | - if ($base === '' || $model === '') return null; | |
| 7305 | - $url = (strpos($base, 'chat/completions') !== false) ? $base : $base . '/chat/completions'; | |
| 7306 | - $headers = array('Content-Type'=>'application/json'); | |
| 7307 | - if ($key !== '') $headers['Authorization'] = 'Bearer '.$key; | |
| 7308 | - return array('family'=>'openai','model'=>$model,'url'=>$url,'headers'=>$headers,'tag'=>'openai'); | |
| 7309 | - } | |
| 7310 | - return null; | |
| 7311 | -} | |
| 7312 | - | |
| 7313 | -/** | |
| 7314 | - * Top-level function-calling attempt. Returns: | |
| 7315 | - * ['handled'=>true, 'text'=>'<final answer>'] when the model used ≥1 tool | |
| 7316 | - * ['handled'=>false] otherwise (caller falls back | |
| 7317 | - * to the normal streamed path) | |
| 7318 | - */ | |
| 7319 | -private function mxchat_fc_attempt($message, $relevant_content, $conversation_history, $selected_model, $opts, $session_id, $user_id) { | |
| 7320 | - $prov = $this->mxchat_fc_resolve_provider($selected_model, $opts); | |
| 7321 | - if (!$prov) { | |
| 7322 | - return array('handled' => false); | |
| 7323 | - } | |
| 7324 | - $tools = MxChat_Tool_Registry::enabled_tools(); | |
| 7325 | - if (empty($tools)) { | |
| 7326 | - return array('handled' => false); | |
| 7327 | - } | |
| 7328 | - | |
| 7329 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 7330 | - $system = $this->get_system_instructions($bot_id, $session_id); | |
| 7331 | - | |
| 7332 | - // Force callbacks into return-mode (some echo SSE directly when streaming); | |
| 7333 | - // we buffer the whole tool round, then emit once. Restored in finally. | |
| 7334 | - $prev_streaming = $this->is_streaming; | |
| 7335 | - $this->is_streaming = false; | |
| 7336 | - try { | |
| 7337 | - if ($prov['family'] === 'anthropic') { | |
| 7338 | - return $this->mxchat_fc_loop_anthropic($prov, $system, $relevant_content, $conversation_history, $tools, $message, $user_id, $session_id); | |
| 7339 | - } elseif ($prov['family'] === 'gemini') { | |
| 7340 | - return $this->mxchat_fc_loop_gemini($prov, $system, $relevant_content, $conversation_history, $tools, $message, $user_id, $session_id); | |
| 7341 | - } | |
| 7342 | - return $this->mxchat_fc_loop_openai($prov, $system, $relevant_content, $conversation_history, $tools, $message, $user_id, $session_id); | |
| 7343 | - } catch (\Throwable $e) { | |
| 7344 | - $this->mxchat_fc_log('attempt threw: ' . $e->getMessage()); | |
| 7345 | - return array('handled' => false); | |
| 7346 | - } finally { | |
| 7347 | - $this->is_streaming = $prev_streaming; | |
| 7348 | - } | |
| 7349 | -} | |
| 7350 | - | |
| 7351 | -/** Normalize MxChat history rows to [{role:user|assistant, content}]. */ | |
| 7352 | -private function mxchat_fc_normalize_history($conversation_history) { | |
| 7353 | - $out = array(); | |
| 7354 | - if (!is_array($conversation_history)) return $out; | |
| 7355 | - foreach ($conversation_history as $m) { | |
| 7356 | - if (!is_array($m) || !isset($m['role']) || !isset($m['content'])) continue; | |
| 7357 | - $role = $m['role']; | |
| 7358 | - if ($role === 'bot' || $role === 'agent') $role = 'assistant'; | |
| 7359 | - if (!in_array($role, array('user', 'assistant'), true)) $role = 'user'; | |
| 7360 | - $out[] = array('role' => $role, 'content' => (string) $m['content']); | |
| 7361 | - } | |
| 7362 | - return $out; | |
| 7363 | -} | |
| 7364 | - | |
| 7365 | -/** Execute the matched callback for a tool call. Returns ['ok'=>bool,'content'=>string]. */ | |
| 7366 | -private function mxchat_fc_execute_tool($tool_name, $args, $orig_message, $user_id, $session_id) { | |
| 7367 | - $tool = MxChat_Tool_Registry::tool_by_name($tool_name, true); // enabled-only | |
| 7368 | - if (!$tool) { | |
| 7369 | - return array('ok' => false, 'content' => 'This tool is not available or not enabled.'); | |
| 7370 | - } | |
| 7371 | - $fn = $tool['callback']; | |
| 7372 | - | |
| 7373 | - // MxChat callbacks are message-driven: hand them the model's `query` | |
| 7374 | - // (falling back to the original user message). | |
| 7375 | - $query = ''; | |
| 7376 | - if (is_array($args) && isset($args['query']) && is_string($args['query'])) { | |
| 7377 | - $query = $args['query']; | |
| 7378 | - } | |
| 7379 | - if ($query === '') $query = $orig_message; | |
| 7380 | - | |
| 7381 | - // Synthetic intent row (matches wp_mxchat_intents columns → no undefined-prop warnings). | |
| 7382 | - $synthetic_intent = (object) array( | |
| 7383 | - 'id' => 0, 'intent_label' => $tool['label'], 'phrases' => '', | |
| 7384 | - 'embedding_vector' => '', 'callback_function' => $fn, | |
| 7385 | - 'similarity_threshold' => 0.0, 'enabled' => 1, 'enabled_bots' => null, | |
| 7386 | - ); | |
| 7387 | - | |
| 7388 | - try { | |
| 7389 | - if (!empty($tool['is_addon'])) { | |
| 7390 | - $result = apply_filters($fn, false, $query, $user_id, $session_id, $synthetic_intent); | |
| 7391 | - } elseif (method_exists($this, $fn)) { | |
| 7392 | - $result = call_user_func(array($this, $fn), $query, $user_id, $session_id, $synthetic_intent, null); | |
| 7393 | - } else { | |
| 7394 | - return array('ok' => false, 'content' => 'Tool implementation not found.'); | |
| 7395 | - } | |
| 7396 | - } catch (\Throwable $e) { | |
| 7397 | - $this->mxchat_fc_log("tool {$fn} threw: " . $e->getMessage()); | |
| 7398 | - return array('ok' => false, 'content' => 'The tool failed to run.'); | |
| 7399 | - } | |
| 7400 | - | |
| 7401 | - // plan-mxchat-20260617-48a57a — surface UI-bearing tool output. | |
| 7402 | - // If the callback produced a UI element (generated image, product card, image | |
| 7403 | - // gallery), its html MUST reach the FRONTEND as a real rendered bot message — | |
| 7404 | - // NOT be stripped to text and handed to the model to paraphrase (that was the | |
| 7405 | - // bug: under function calling, UI-bearing actions rendered nothing). Capture | |
| 7406 | - // the html here; the FC outcome handler emits it in the response envelope. | |
| 7407 | - $ui = $this->mxchat_fc_ui_payload_from($result); | |
| 7408 | - if ($ui['html'] !== '' || !empty($ui['images'])) { | |
| 7409 | - if ($ui['html'] !== '') { | |
| 7410 | - $this->fc_ui_html .= ($this->fc_ui_html !== '' ? "\n" : '') . $ui['html']; | |
| 7411 | - } | |
| 7412 | - if (!empty($ui['images']) && is_array($ui['images'])) { | |
| 7413 | - $this->fc_ui_images = array_merge($this->fc_ui_images, $ui['images']); | |
| 7414 | - } | |
| 7415 | - $this->fc_ui_captured = true; | |
| 7416 | - | |
| 7417 | - // Persist the html to the transcript ONLY if the callback did not already | |
| 7418 | - // do so itself. Core image/search callbacks self-save (text + html); | |
| 7419 | - // add-on callbacks (e.g. woo product cards) return html for the caller to | |
| 7420 | - // save. ui_self_saves carries this from the registry; default by source | |
| 7421 | - // (core self-saves, add-on does not) when a tool predates the flag. | |
| 7422 | - $self_saves = array_key_exists('ui_self_saves', $tool) | |
| 7423 | - ? !empty($tool['ui_self_saves']) | |
| 7424 | - : empty($tool['is_addon']); | |
| 7425 | - if ($ui['html'] !== '' && !$self_saves) { | |
| 7426 | - $this->mxchat_save_chat_message($session_id, 'bot', $ui['html']); | |
| 7427 | - } | |
| 7428 | - | |
| 7429 | - // Hand the MODEL a short acknowledgment (never the raw or stripped html) | |
| 7430 | - // so the loop can add a one-line caption without trying to re-describe a | |
| 7431 | - // visual it cannot see and without duplicating the displayed element. | |
| 7432 | - $summary = isset($ui['text']) ? trim((string) $ui['text']) : ''; | |
| 7433 | - $ack = __('[A visual result has already been shown to the user in the chat. Do not repeat or describe it in detail — reply with at most a brief one-line caption.]', 'mxchat'); | |
| 7434 | - $content = $summary !== '' ? ($ack . ' ' . $summary) : $ack; | |
| 7435 | - $this->mxchat_fc_log("executed {$fn} → [ui payload surfaced] " . substr($content, 0, 120)); | |
| 7436 | - return array('ok' => true, 'content' => $content); | |
| 7437 | - } | |
| 7438 | - | |
| 7439 | - $content = $this->mxchat_fc_stringify_result($result); | |
| 7440 | - $this->mxchat_fc_log("executed {$fn} → " . substr($content, 0, 160)); | |
| 7441 | - return array('ok' => true, 'content' => $content); | |
| 7442 | -} | |
| 7443 | - | |
| 7444 | -/** | |
| 7445 | - * Extract a UI payload (html + images + text) from a tool callback's return, | |
| 7446 | - * falling back to $this->fallbackResponse for callbacks that return true after | |
| 7447 | - * setting it. plan-mxchat-20260617-48a57a. | |
| 7448 | - * | |
| 7449 | - * @return array{html:string,images:array,text:string} | |
| 7450 | - */ | |
| 7451 | -private function mxchat_fc_ui_payload_from($result) { | |
| 7452 | - $src = null; | |
| 7453 | - if (is_array($result)) { | |
| 7454 | - $src = $result; | |
| 7455 | - } elseif ($result === true && isset($this->fallbackResponse) && is_array($this->fallbackResponse)) { | |
| 7456 | - $src = $this->fallbackResponse; | |
| 7457 | - } | |
| 7458 | - $html = (is_array($src) && isset($src['html']) && is_string($src['html'])) ? $src['html'] : ''; | |
| 7459 | - $images = (is_array($src) && isset($src['images']) && is_array($src['images'])) ? $src['images'] : array(); | |
| 7460 | - $text = (is_array($src) && isset($src['text'])) ? (string) $src['text'] : ''; | |
| 7461 | - return array('html' => $html, 'images' => $images, 'text' => $text); | |
| 7462 | -} | |
| 7463 | - | |
| 7464 | -/** Coerce a callback's return (string|array|true|false) into a tool-result string. */ | |
| 7465 | -private function mxchat_fc_stringify_result($result) { | |
| 7466 | - if (is_string($result)) { | |
| 7467 | - return $result === '' ? 'No result.' : $result; | |
| 7468 | - } | |
| 7469 | - if ($result === true) { | |
| 7470 | - // Callbacks that set fallbackResponse and return true. | |
| 7471 | - $fb = isset($this->fallbackResponse) ? $this->fallbackResponse : null; | |
| 7472 | - if (is_array($fb)) { | |
| 7473 | - if (!empty($fb['text'])) return (string) $fb['text']; | |
| 7474 | - if (!empty($fb['html'])) return wp_strip_all_tags((string) $fb['html']); | |
| 7475 | - } | |
| 7476 | - return 'Done.'; | |
| 7477 | - } | |
| 7478 | - if ($result === false || $result === null) { | |
| 7479 | - return 'No result.'; | |
| 7480 | - } | |
| 7481 | - if (is_array($result)) { | |
| 7482 | - if (isset($result['text']) && $result['text'] !== '') return (string) $result['text']; | |
| 7483 | - if (isset($result['html']) && $result['html'] !== '') return wp_strip_all_tags((string) $result['html']); | |
| 7484 | - $json = wp_json_encode($result); | |
| 7485 | - return $json !== false ? $json : 'No result.'; | |
| 7486 | - } | |
| 7487 | - return (string) $result; | |
| 7488 | -} | |
| 7489 | - | |
| 7490 | -/** HTTP code + decoded body for a function-calling request. */ | |
| 7491 | -private function mxchat_fc_post($url, $body, $headers, $tag) { | |
| 7492 | - $args = array( | |
| 7493 | - 'body' => wp_json_encode($body), | |
| 7494 | - 'headers' => $headers, | |
| 7495 | - 'timeout' => 60, | |
| 7496 | - 'redirection' => 5, | |
| 7497 | - 'blocking' => true, | |
| 7498 | - 'httpversion' => '1.0', | |
| 7499 | - 'sslverify' => true, | |
| 7500 | - ); | |
| 7501 | - $response = $this->mxchat_provider_call_with_retry($url, $args, $tag); | |
| 7502 | - if (is_wp_error($response)) { | |
| 7503 | - return array('code' => 0, 'data' => null, 'error' => $response->get_error_message()); | |
| 7504 | - } | |
| 7505 | - $code = (int) wp_remote_retrieve_response_code($response); | |
| 7506 | - $data = json_decode(wp_remote_retrieve_body($response), true); | |
| 7507 | - return array('code' => $code, 'data' => $data, 'error' => null); | |
| 7508 | -} | |
| 7509 | - | |
| 7510 | -/* ---------------- OpenAI-compatible loop (OpenAI/xAI/DeepSeek/OpenRouter/Custom) -------------- */ | |
| 7511 | -private function mxchat_fc_loop_openai($prov, $system, $relevant_content, $conversation_history, $tools, $orig_message, $user_id, $session_id) { | |
| 7512 | - $messages = array(); | |
| 7513 | - $messages[] = array('role' => 'system', 'content' => $system . ' ' . $relevant_content); | |
| 7514 | - foreach ($this->mxchat_fc_normalize_history($conversation_history) as $m) { | |
| 7515 | - $messages[] = $m; | |
| 7516 | - } | |
| 7517 | - | |
| 7518 | - $depth = MxChat_Tool_Registry::max_depth(); | |
| 7519 | - $budget = MxChat_Tool_Registry::max_tool_calls_per_turn(); | |
| 7520 | - $tool_schema = MxChat_Tool_Registry::to_openai_tools($tools); | |
| 7521 | - $used_tool = false; | |
| 7522 | - $calls_made = 0; | |
| 7523 | - | |
| 7524 | - for ($step = 0; $step <= $depth; $step++) { | |
| 7525 | - $offer_tools = ($step < $depth) && !empty($tool_schema); | |
| 7526 | - $body = array('model' => $prov['model'], 'messages' => $messages, 'temperature' => 1, 'stream' => false); | |
| 7527 | - if ($offer_tools) { | |
| 7528 | - $body['tools'] = $tool_schema; | |
| 7529 | - $body['tool_choice'] = 'auto'; | |
| 7530 | - } | |
| 7531 | - $r = $this->mxchat_fc_post($prov['url'], $body, $prov['headers'], $prov['tag']); | |
| 7532 | - if ($r['code'] !== 200 || !is_array($r['data'])) { | |
| 7533 | - $this->mxchat_fc_log('openai call failed: code=' . $r['code'] . ' err=' . ($r['error'] ?? '')); | |
| 7534 | - return $used_tool ? array('handled' => true, 'text' => $this->mxchat_fc_giveup_text()) : array('handled' => false); | |
| 7535 | - } | |
| 7536 | - $msg = isset($r['data']['choices'][0]['message']) ? $r['data']['choices'][0]['message'] : null; | |
| 7537 | - if (!$msg) { | |
| 7538 | - return $used_tool ? array('handled' => true, 'text' => $this->mxchat_fc_giveup_text()) : array('handled' => false); | |
| 7539 | - } | |
| 7540 | - $tool_calls = isset($msg['tool_calls']) && is_array($msg['tool_calls']) ? $msg['tool_calls'] : array(); | |
| 7541 | - if (empty($tool_calls)) { | |
| 7542 | - $text = isset($msg['content']) ? trim((string) $msg['content']) : ''; | |
| 7543 | - if (!$used_tool) return array('handled' => false); // model never used a tool → normal path | |
| 7544 | - return array('handled' => true, 'text' => ($text !== '' ? $text : $this->mxchat_fc_giveup_text())); | |
| 7545 | - } | |
| 7546 | - // Append the assistant tool-call turn verbatim, then a tool result per call. | |
| 7547 | - $used_tool = true; | |
| 7548 | - $messages[] = $msg; | |
| 7549 | - foreach ($tool_calls as $tc) { | |
| 7550 | - if ($calls_made >= $budget) break; | |
| 7551 | - $calls_made++; | |
| 7552 | - $name = isset($tc['function']['name']) ? $tc['function']['name'] : ''; | |
| 7553 | - $args = array(); | |
| 7554 | - if (isset($tc['function']['arguments'])) { | |
| 7555 | - $decoded = json_decode($tc['function']['arguments'], true); | |
| 7556 | - if (is_array($decoded)) $args = $decoded; | |
| 7557 | - } | |
| 7558 | - $exec = $this->mxchat_fc_execute_tool($name, $args, $orig_message, $user_id, $session_id); | |
| 7559 | - $messages[] = array( | |
| 7560 | - 'role' => 'tool', | |
| 7561 | - 'tool_call_id' => isset($tc['id']) ? $tc['id'] : '', | |
| 7562 | - 'content' => $exec['content'], | |
| 7563 | - ); | |
| 7564 | - } | |
| 7565 | - } | |
| 7566 | - return $used_tool ? array('handled' => true, 'text' => $this->mxchat_fc_giveup_text()) : array('handled' => false); | |
| 7567 | -} | |
| 7568 | - | |
| 7569 | -/* ---------------- Anthropic Claude loop ---------------- */ | |
| 7570 | -private function mxchat_fc_loop_anthropic($prov, $system, $relevant_content, $conversation_history, $tools, $orig_message, $user_id, $session_id) { | |
| 7571 | - $messages = $this->mxchat_fc_normalize_history($conversation_history); | |
| 7572 | - $messages[] = array('role' => 'user', 'content' => $relevant_content); | |
| 7573 | - | |
| 7574 | - $depth = MxChat_Tool_Registry::max_depth(); | |
| 7575 | - $budget = MxChat_Tool_Registry::max_tool_calls_per_turn(); | |
| 7576 | - $tool_schema = MxChat_Tool_Registry::to_anthropic_tools($tools); | |
| 7577 | - $omit_temp = $this->mxchat_claude_omits_temperature($prov['model']); | |
| 7578 | - $used_tool = false; | |
| 7579 | - $calls_made = 0; | |
| 7580 | - | |
| 7581 | - for ($step = 0; $step <= $depth; $step++) { | |
| 7582 | - $offer_tools = ($step < $depth) && !empty($tool_schema); | |
| 7583 | - $body = array('model' => $prov['model'], 'max_tokens' => 1024, 'temperature' => 0.8, | |
| 7584 | - 'messages' => $messages, 'system' => $system); | |
| 7585 | - if ($omit_temp) unset($body['temperature']); | |
| 7586 | - if ($offer_tools) { | |
| 7587 | - $body['tools'] = $tool_schema; | |
| 7588 | - $body['tool_choice'] = array('type' => 'auto'); | |
| 7589 | - } | |
| 7590 | - $r = $this->mxchat_fc_post($prov['url'], $body, $prov['headers'], $prov['tag']); | |
| 7591 | - if ($r['code'] !== 200 || !is_array($r['data'])) { | |
| 7592 | - $this->mxchat_fc_log('anthropic call failed: code=' . $r['code'] . ' err=' . ($r['error'] ?? '')); | |
| 7593 | - return $used_tool ? array('handled' => true, 'text' => $this->mxchat_fc_giveup_text()) : array('handled' => false); | |
| 7594 | - } | |
| 7595 | - $content = isset($r['data']['content']) && is_array($r['data']['content']) ? $r['data']['content'] : array(); | |
| 7596 | - $tool_uses = array(); | |
| 7597 | - $text_out = ''; | |
| 7598 | - foreach ($content as $block) { | |
| 7599 | - if (!isset($block['type'])) continue; | |
| 7600 | - if ($block['type'] === 'tool_use') { | |
| 7601 | - $tool_uses[] = $block; | |
| 7602 | - } elseif ($block['type'] === 'text' && isset($block['text'])) { | |
| 7603 | - $text_out .= $block['text']; | |
| 7604 | - } | |
| 7605 | - } | |
| 7606 | - if (empty($tool_uses)) { | |
| 7607 | - if (!$used_tool) return array('handled' => false); | |
| 7608 | - $text_out = trim($text_out); | |
| 7609 | - return array('handled' => true, 'text' => ($text_out !== '' ? $text_out : $this->mxchat_fc_giveup_text())); | |
| 7610 | - } | |
| 7611 | - // Append the assistant turn (the full content array), then a user turn of tool_result blocks. | |
| 7612 | - $used_tool = true; | |
| 7613 | - $messages[] = array('role' => 'assistant', 'content' => $content); | |
| 7614 | - $results = array(); | |
| 7615 | - foreach ($tool_uses as $tu) { | |
| 7616 | - if ($calls_made >= $budget) break; | |
| 7617 | - $calls_made++; | |
| 7618 | - $name = isset($tu['name']) ? $tu['name'] : ''; | |
| 7619 | - $args = isset($tu['input']) && is_array($tu['input']) ? $tu['input'] : array(); | |
| 7620 | - $exec = $this->mxchat_fc_execute_tool($name, $args, $orig_message, $user_id, $session_id); | |
| 7621 | - $results[] = array( | |
| 7622 | - 'type' => 'tool_result', | |
| 7623 | - 'tool_use_id' => isset($tu['id']) ? $tu['id'] : '', | |
| 7624 | - 'content' => $exec['content'], | |
| 7625 | - ); | |
| 7626 | - } | |
| 7627 | - $messages[] = array('role' => 'user', 'content' => $results); | |
| 7628 | - } | |
| 7629 | - return $used_tool ? array('handled' => true, 'text' => $this->mxchat_fc_giveup_text()) : array('handled' => false); | |
| 7630 | -} | |
| 7631 | - | |
| 7632 | -/* ---------------- Google Gemini loop ---------------- */ | |
| 7633 | -private function mxchat_fc_loop_gemini($prov, $system, $relevant_content, $conversation_history, $tools, $orig_message, $user_id, $session_id) { | |
| 7634 | - $contents = array(); | |
| 7635 | - $contents[] = array('role' => 'user', 'parts' => array(array('text' => '[System Instructions] ' . $system . ' ' . $relevant_content))); | |
| 7636 | - $contents[] = array('role' => 'model', 'parts' => array(array('text' => 'I understand and will follow these instructions.'))); | |
| 7637 | - foreach ($this->mxchat_fc_normalize_history($conversation_history) as $m) { | |
| 7638 | - $contents[] = array('role' => ($m['role'] === 'assistant' ? 'model' : 'user'), | |
| 7639 | - 'parts' => array(array('text' => $m['content']))); | |
| 7640 | - } | |
| 7641 | - | |
| 7642 | - $depth = MxChat_Tool_Registry::max_depth(); | |
| 7643 | - $budget = MxChat_Tool_Registry::max_tool_calls_per_turn(); | |
| 7644 | - $tool_schema = MxChat_Tool_Registry::to_gemini_tools($tools); | |
| 7645 | - // Function calling (tools + functionDeclarations + toolConfig) is a v1beta feature on the | |
| 7646 | - // Generative Language REST API. The v1 endpoint silently ignores the tools array, so a | |
| 7647 | - // non-preview model (e.g. gemini-2.5-pro, gemini-3.5-flash, gemini-3.1-flash-lite) would | |
| 7648 | - // just answer in text and never emit a tool call. Always use v1beta for the FC loop — | |
| 7649 | - // confirmed against Google's function-calling docs (their REST example targets | |
| 7650 | - // v1beta/models/gemini-3.5-flash:generateContent). v1beta is a superset, so every model | |
| 7651 | - // reachable on v1 is also reachable here. | |
| 7652 | - $api_version = 'v1beta'; | |
| 7653 | - $url = 'https://generativelanguage.googleapis.com/' . $api_version . '/models/' . $prov['model'] . ':generateContent?key=' . $prov['key']; | |
| 7654 | - $headers = array('Content-Type' => 'application/json'); | |
| 7655 | - $used_tool = false; | |
| 7656 | - $calls_made = 0; | |
| 7657 | - | |
| 7658 | - for ($step = 0; $step <= $depth; $step++) { | |
| 7659 | - $offer_tools = ($step < $depth) && !empty($tool_schema); | |
| 7660 | - $body = array( | |
| 7661 | - 'contents' => $contents, | |
| 7662 | - 'generationConfig' => array('temperature' => 0.7, 'topP' => 0.95, 'topK' => 40, 'maxOutputTokens' => 8192), | |
| 7663 | - ); | |
| 7664 | - if ($offer_tools) { | |
| 7665 | - $body['tools'] = $tool_schema; | |
| 7666 | - $body['toolConfig'] = array('functionCallingConfig' => array('mode' => 'AUTO')); | |
| 7667 | - } | |
| 7668 | - $r = $this->mxchat_fc_post($url, $body, $headers, 'gemini'); | |
| 7669 | - if ($r['code'] !== 200 || !is_array($r['data']) || isset($r['data']['error'])) { | |
| 7670 | - $this->mxchat_fc_log('gemini call failed: code=' . $r['code'] . ' err=' . ($r['error'] ?? '')); | |
| 7671 | - return $used_tool ? array('handled' => true, 'text' => $this->mxchat_fc_giveup_text()) : array('handled' => false); | |
| 7672 | - } | |
| 7673 | - $parts = isset($r['data']['candidates'][0]['content']['parts']) && is_array($r['data']['candidates'][0]['content']['parts']) | |
| 7674 | - ? $r['data']['candidates'][0]['content']['parts'] : array(); | |
| 7675 | - $fn_calls = array(); | |
| 7676 | - $text_out = ''; | |
| 7677 | - foreach ($parts as $p) { | |
| 7678 | - if (isset($p['functionCall'])) { | |
| 7679 | - $fn_calls[] = $p['functionCall']; | |
| 7680 | - } elseif (isset($p['text'])) { | |
| 7681 | - $text_out .= $p['text']; | |
| 7682 | - } | |
| 7683 | - } | |
| 7684 | - if (empty($fn_calls)) { | |
| 7685 | - if (!$used_tool) return array('handled' => false); | |
| 7686 | - $text_out = trim($text_out); | |
| 7687 | - return array('handled' => true, 'text' => ($text_out !== '' ? $text_out : $this->mxchat_fc_giveup_text())); | |
| 7688 | - } | |
| 7689 | - // Append the model turn (its parts) then a user turn of functionResponse parts. | |
| 7690 | - $used_tool = true; | |
| 7691 | - $contents[] = array('role' => 'model', 'parts' => $parts); | |
| 7692 | - $resp_parts = array(); | |
| 7693 | - foreach ($fn_calls as $fcall) { | |
| 7694 | - if ($calls_made >= $budget) break; | |
| 7695 | - $calls_made++; | |
| 7696 | - $name = isset($fcall['name']) ? $fcall['name'] : ''; | |
| 7697 | - $args = isset($fcall['args']) && is_array($fcall['args']) ? $fcall['args'] : array(); | |
| 7698 | - $exec = $this->mxchat_fc_execute_tool($name, $args, $orig_message, $user_id, $session_id); | |
| 7699 | - $fr = array('name' => $name, 'response' => array('result' => $exec['content'])); | |
| 7700 | - // Gemini 3 function calls carry a unique id; echo the matching id back in the | |
| 7701 | - // functionResponse so the model maps the result to the right call (Google REST | |
| 7702 | - // guidance). Older models omit the id — then we send none, exactly as before. | |
| 7703 | - if (isset($fcall['id']) && $fcall['id'] !== '') { $fr['id'] = $fcall['id']; } | |
| 7704 | - $resp_parts[] = array('functionResponse' => $fr); | |
| 7705 | - } | |
| 7706 | - $contents[] = array('role' => 'user', 'parts' => $resp_parts); | |
| 7707 | - } | |
| 7708 | - return $used_tool ? array('handled' => true, 'text' => $this->mxchat_fc_giveup_text()) : array('handled' => false); | |
| 7709 | -} | |
| 7710 | - | |
| 7711 | -private function mxchat_fc_giveup_text() { | |
| 7712 | - return esc_html__('I looked into that but could not put together a final answer. Please try rephrasing your request.', 'mxchat'); | |
| 7713 | -} | |
| 7714 | - | |
| 7715 | -private function mxchat_generate_response($relevant_content, $api_key, $xai_api_key, $claude_api_key, $deepseek_api_key, $gemini_api_key, $openrouter_api_key, $conversation_history, $streaming = false, $session_id = '', $testing_data = null, $selected_model = 'gpt-5.1-chat-latest') { | |
| 7716 | - try { | |
| 7717 | - if (!$relevant_content) { | |
| 7718 | - $error_response = [ | |
| 7719 | - 'error' => esc_html__("I couldn't find relevant information on that topic.", 'mxchat'), | |
| 7720 | - 'error_code' => 'no_relevant_content' | |
| 7721 | - ]; | |
| 7722 | - | |
| 7723 | - if ($testing_data !== null) { | |
| 7724 | - $error_response['testing_data'] = $testing_data; | |
| 7725 | - } | |
| 7726 | - | |
| 7727 | - return $error_response; | |
| 7728 | - } | |
| 7729 | - | |
| 7730 | - if (!is_array($conversation_history)) { | |
| 7731 | - $conversation_history = array(); | |
| 7732 | - } | |
| 7733 | - | |
| 7734 | - // Check if this is an OpenRouter model | |
| 7735 | - if ($selected_model === 'openrouter') { | |
| 7736 | - // Get the actual OpenRouter model from options | |
| 7737 | - $openrouter_selected_model = $this->options['openrouter_selected_model'] ?? ''; | |
| 7738 | - | |
| 7739 | - if (empty($openrouter_selected_model)) { | |
| 7740 | - $error_response = [ | |
| 7741 | - 'error' => esc_html__('No OpenRouter model selected. Please select a model in settings.', 'mxchat'), | |
| 7742 | - 'error_code' => 'no_openrouter_model_selected' | |
| 7743 | - ]; | |
| 7744 | - if ($testing_data !== null) { | |
| 7745 | - $error_response['testing_data'] = $testing_data; | |
| 7746 | - } | |
| 7747 | - return $error_response; | |
| 7748 | - } | |
| 7749 | - | |
| 7750 | - if (empty($openrouter_api_key)) { | |
| 7751 | - $error_response = [ | |
| 7752 | - 'error' => esc_html__('OpenRouter API key is not configured', 'mxchat'), | |
| 7753 | - 'error_code' => 'missing_openrouter_api_key' | |
| 7754 | - ]; | |
| 7755 | - if ($testing_data !== null) { | |
| 7756 | - $error_response['testing_data'] = $testing_data; | |
| 7757 | - } | |
| 7758 | - return $error_response; | |
| 7759 | - } | |
| 7760 | - | |
| 7761 | - if ($streaming) { | |
| 7762 | - return $this->mxchat_generate_response_openrouter_stream( | |
| 7763 | - $openrouter_selected_model, | |
| 7764 | - $openrouter_api_key, | |
| 7765 | - $conversation_history, | |
| 7766 | - $relevant_content, | |
| 7767 | - $session_id, | |
| 7768 | - $testing_data | |
| 7769 | - ); | |
| 7770 | - } else { | |
| 7771 | - $response = $this->mxchat_generate_response_openrouter( | |
| 7772 | - $openrouter_selected_model, | |
| 7773 | - $openrouter_api_key, | |
| 7774 | - $conversation_history, | |
| 7775 | - $relevant_content, | |
| 7776 | - $session_id | |
| 7777 | - ); | |
| 7778 | - } | |
| 7779 | - | |
| 7780 | - if (is_array($response) && isset($response['error'])) { | |
| 7781 | - if ($testing_data !== null) { | |
| 7782 | - $response['testing_data'] = $testing_data; | |
| 7783 | - } | |
| 7784 | - return $response; | |
| 7785 | - } | |
| 7786 | - | |
| 7787 | - return $response; | |
| 7788 | - } | |
| 7789 | - | |
| 7790 | - // Extract model prefix to determine the provider | |
| 7791 | - $model_parts = explode('-', $selected_model); | |
| 7792 | - $provider = strtolower($model_parts[0]); | |
| 7793 | - | |
| 7794 | - // Handle model selection based on provider prefix | |
| 7795 | - switch ($provider) { | |
| 7796 | - case 'gemini': | |
| 7797 | - if (empty($gemini_api_key)) { | |
| 7798 | - $error_response = [ | |
| 7799 | - 'error' => esc_html__('Google Gemini API key is not configured', 'mxchat'), | |
| 7800 | - 'error_code' => 'missing_gemini_api_key' | |
| 7801 | - ]; | |
| 7802 | - if ($testing_data !== null) { | |
| 7803 | - $error_response['testing_data'] = $testing_data; | |
| 7804 | - } | |
| 7805 | - return $error_response; | |
| 7806 | - } | |
| 7807 | - $response = $this->mxchat_generate_response_gemini( | |
| 7808 | - $selected_model, | |
| 7809 | - $gemini_api_key, | |
| 7810 | - $conversation_history, | |
| 7811 | - $relevant_content, | |
| 7812 | - $session_id | |
| 7813 | - ); | |
| 7814 | - break; | |
| 7815 | - | |
| 7816 | - case 'claude': | |
| 7817 | - if (empty($claude_api_key)) { | |
| 7818 | - $error_response = [ | |
| 7819 | - 'error' => esc_html__('Claude API key is not configured', 'mxchat'), | |
| 7820 | - 'error_code' => 'missing_claude_api_key' | |
| 7821 | - ]; | |
| 7822 | - if ($testing_data !== null) { | |
| 7823 | - $error_response['testing_data'] = $testing_data; | |
| 7824 | - } | |
| 7825 | - return $error_response; | |
| 7826 | - } | |
| 7827 | - if ($streaming) { | |
| 7828 | - return $this->mxchat_generate_response_claude_stream( | |
| 7829 | - $selected_model, | |
| 7830 | - $claude_api_key, | |
| 7831 | - $conversation_history, | |
| 7832 | - $relevant_content, | |
| 7833 | - $session_id, | |
| 7834 | - $testing_data | |
| 7835 | - ); | |
| 7836 | - } else { | |
| 7837 | - $response = $this->mxchat_generate_response_claude( | |
| 7838 | - $selected_model, | |
| 7839 | - $claude_api_key, | |
| 7840 | - $conversation_history, | |
| 7841 | - $relevant_content, | |
| 7842 | - $session_id | |
| 7843 | - ); | |
| 7844 | - } | |
| 7845 | - break; | |
| 7846 | - | |
| 7847 | - case 'grok': | |
| 7848 | - if (empty($xai_api_key)) { | |
| 7849 | - $error_response = [ | |
| 7850 | - 'error' => esc_html__('X.AI API key is not configured', 'mxchat'), | |
| 7851 | - 'error_code' => 'missing_xai_api_key' | |
| 7852 | - ]; | |
| 7853 | - if ($testing_data !== null) { | |
| 7854 | - $error_response['testing_data'] = $testing_data; | |
| 7855 | - } | |
| 7856 | - return $error_response; | |
| 7857 | - } | |
| 7858 | - if ($streaming) { | |
| 7859 | - return $this->mxchat_generate_response_xai_stream( | |
| 7860 | - $selected_model, | |
| 7861 | - $xai_api_key, | |
| 7862 | - $conversation_history, | |
| 7863 | - $relevant_content, | |
| 7864 | - $session_id, | |
| 7865 | - $testing_data | |
| 7866 | - ); | |
| 7867 | - } else { | |
| 7868 | - $response = $this->mxchat_generate_response_xai( | |
| 7869 | - $selected_model, | |
| 7870 | - $xai_api_key, | |
| 7871 | - $conversation_history, | |
| 7872 | - $relevant_content, | |
| 7873 | - $session_id | |
| 7874 | - ); | |
| 7875 | - } | |
| 7876 | - break; | |
| 7877 | - | |
| 7878 | - case 'deepseek': | |
| 7879 | - if (empty($deepseek_api_key)) { | |
| 7880 | - $error_response = [ | |
| 7881 | - 'error' => esc_html__('DeepSeek API key is not configured', 'mxchat'), | |
| 7882 | - 'error_code' => 'missing_deepseek_api_key' | |
| 7883 | - ]; | |
| 7884 | - if ($testing_data !== null) { | |
| 7885 | - $error_response['testing_data'] = $testing_data; | |
| 7886 | - } | |
| 7887 | - return $error_response; | |
| 7888 | - } | |
| 7889 | - if ($streaming) { | |
| 7890 | - return $this->mxchat_generate_response_deepseek_stream( | |
| 7891 | - $selected_model, | |
| 7892 | - $deepseek_api_key, | |
| 7893 | - $conversation_history, | |
| 7894 | - $relevant_content, | |
| 7895 | - $session_id, | |
| 7896 | - $testing_data | |
| 7897 | - ); | |
| 7898 | - } else { | |
| 7899 | - $response = $this->mxchat_generate_response_deepseek( | |
| 7900 | - $selected_model, | |
| 7901 | - $deepseek_api_key, | |
| 7902 | - $conversation_history, | |
| 7903 | - $relevant_content, | |
| 7904 | - $session_id | |
| 7905 | - ); | |
| 7906 | - } | |
| 7907 | - break; | |
| 7908 | - | |
| 7909 | - case 'custom': | |
| 7910 | - // Custom (OpenAI-compatible) provider — Ollama, LM Studio, vLLM, llama.cpp, Azure OpenAI | |
| 7911 | - $cp_base_url = isset($this->options['custom_provider_base_url']) ? trim((string) $this->options['custom_provider_base_url']) : ''; | |
| 7912 | - if (empty($cp_base_url)) { | |
| 7913 | - $error_response = [ | |
| 7914 | - 'error' => esc_html__('Custom provider is not configured. Set Base URL in MxChat → API Keys → Custom Provider.', 'mxchat'), | |
| 7915 | - 'error_code' => 'missing_custom_provider_base_url' | |
| 7916 | - ]; | |
| 7917 | - if ($testing_data !== null) { | |
| 7918 | - $error_response['testing_data'] = $testing_data; | |
| 7919 | - } | |
| 7920 | - return $error_response; | |
| 7921 | - } | |
| 7922 | - if ($streaming) { | |
| 7923 | - return $this->mxchat_generate_response_custom_stream( | |
| 7924 | - $selected_model, | |
| 7925 | - $conversation_history, | |
| 7926 | - $relevant_content, | |
| 7927 | - $session_id, | |
| 7928 | - $testing_data | |
| 7929 | - ); | |
| 7930 | - } else { | |
| 7931 | - $response = $this->mxchat_generate_response_custom( | |
| 7932 | - $selected_model, | |
| 7933 | - $conversation_history, | |
| 7934 | - $relevant_content | |
| 7935 | - ); | |
| 7936 | - } | |
| 7937 | - break; | |
| 7938 | - | |
| 7939 | - case 'gpt': | |
| 7940 | - case 'o1': | |
| 7941 | - if (empty($api_key)) { | |
| 7942 | - $error_response = [ | |
| 7943 | - 'error' => esc_html__('OpenAI API key is not configured', 'mxchat'), | |
| 7944 | - 'error_code' => 'missing_openai_api_key' | |
| 7945 | - ]; | |
| 7946 | - if ($testing_data !== null) { | |
| 7947 | - $error_response['testing_data'] = $testing_data; | |
| 7948 | - } | |
| 7949 | - return $error_response; | |
| 7950 | - } | |
| 7951 | - | |
| 7952 | - // Check if web search is enabled for this OpenAI model | |
| 7953 | - $web_search_enabled = isset($this->options['enable_web_search']) && $this->options['enable_web_search'] === 'on'; | |
| 7954 | - // Models that don't support web search | |
| 7955 | - $unsupported_web_search_models = array('gpt-4.1-nano'); | |
| 7956 | - $model_supports_web_search = !in_array($selected_model, $unsupported_web_search_models); | |
| 7957 | - | |
| 7958 | - if ($web_search_enabled && $model_supports_web_search) { | |
| 7959 | - // Use Responses API (required for some models, or when web search is enabled) | |
| 7960 | - return $this->mxchat_generate_response_openai_web_search( | |
| 7961 | - $selected_model, | |
| 7962 | - $api_key, | |
| 7963 | - $conversation_history, | |
| 7964 | - $relevant_content, | |
| 7965 | - $session_id, | |
| 7966 | - $testing_data, | |
| 7967 | - $streaming | |
| 7968 | - ); | |
| 7969 | - } elseif ($streaming) { | |
| 7970 | - return $this->mxchat_generate_response_openai_stream( | |
| 7971 | - $selected_model, | |
| 7972 | - $api_key, | |
| 7973 | - $conversation_history, | |
| 7974 | - $relevant_content, | |
| 7975 | - $session_id, | |
| 7976 | - $testing_data | |
| 7977 | - ); | |
| 7978 | - } else { | |
| 7979 | - $response = $this->mxchat_generate_response_openai( | |
| 7980 | - $selected_model, | |
| 7981 | - $api_key, | |
| 7982 | - $conversation_history, | |
| 7983 | - $relevant_content, | |
| 7984 | - $session_id | |
| 7985 | - ); | |
| 7986 | - } | |
| 7987 | - break; | |
| 7988 | - | |
| 7989 | - default: | |
| 7990 | - if (empty($api_key)) { | |
| 7991 | - $error_response = [ | |
| 7992 | - 'error' => esc_html__('OpenAI API key is not configured', 'mxchat'), | |
| 7993 | - 'error_code' => 'missing_openai_api_key' | |
| 7994 | - ]; | |
| 7995 | - if ($testing_data !== null) { | |
| 7996 | - $error_response['testing_data'] = $testing_data; | |
| 7997 | - } | |
| 7998 | - return $error_response; | |
| 7999 | - } | |
| 8000 | - | |
| 8001 | - // Check if web search is enabled (default case also handles OpenAI models) | |
| 8002 | - $web_search_enabled = isset($this->options['enable_web_search']) && $this->options['enable_web_search'] === 'on'; | |
| 8003 | - $unsupported_web_search_models = array('gpt-4.1-nano'); | |
| 8004 | - $model_supports_web_search = !in_array($selected_model, $unsupported_web_search_models); | |
| 8005 | - | |
| 8006 | - if ($web_search_enabled && $model_supports_web_search) { | |
| 8007 | - return $this->mxchat_generate_response_openai_web_search( | |
| 8008 | - $selected_model, | |
| 8009 | - $api_key, | |
| 8010 | - $conversation_history, | |
| 8011 | - $relevant_content, | |
| 8012 | - $session_id, | |
| 8013 | - $testing_data, | |
| 8014 | - $streaming | |
| 8015 | - ); | |
| 8016 | - } elseif ($streaming) { | |
| 8017 | - return $this->mxchat_generate_response_openai_stream( | |
| 8018 | - $selected_model, | |
| 8019 | - $api_key, | |
| 8020 | - $conversation_history, | |
| 8021 | - $relevant_content, | |
| 8022 | - $session_id, | |
| 8023 | - $testing_data | |
| 8024 | - ); | |
| 8025 | - } else { | |
| 8026 | - $response = $this->mxchat_generate_response_openai( | |
| 8027 | - $selected_model, | |
| 8028 | - $api_key, | |
| 8029 | - $conversation_history, | |
| 8030 | - $relevant_content, | |
| 8031 | - $session_id | |
| 8032 | - ); | |
| 8033 | - } | |
| 8034 | - break; | |
| 8035 | - } | |
| 8036 | - | |
| 8037 | - if (is_array($response) && isset($response['error'])) { | |
| 8038 | - if ($testing_data !== null) { | |
| 8039 | - $response['testing_data'] = $testing_data; | |
| 8040 | - } | |
| 8041 | - return $response; | |
| 8042 | - } | |
| 8043 | - | |
| 8044 | - return $response; | |
| 8045 | - | |
| 8046 | - } catch (Exception $e) { | |
| 8047 | - $error_response = [ | |
| 8048 | - 'error' => sprintf(esc_html__('An error occurred: %s', 'mxchat'), esc_html($e->getMessage())), | |
| 8049 | - 'error_code' => 'system_exception', | |
| 8050 | - 'exception_details' => $e->getMessage() | |
| 8051 | - ]; | |
| 8052 | - | |
| 8053 | - if ($testing_data !== null) { | |
| 8054 | - $error_response['testing_data'] = $testing_data; | |
| 8055 | - } | |
| 8056 | - | |
| 8057 | - return $error_response; | |
| 8058 | - } | |
| 8059 | -} | |
| 8060 | -private function mxchat_generate_response_openrouter_stream($selected_model, $openrouter_api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) { | |
| 8061 | - try { | |
| 8062 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 8063 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 8064 | - | |
| 8065 | - if (!is_array($conversation_history)) { | |
| 8066 | - $conversation_history = array(); | |
| 8067 | - } | |
| 8068 | - | |
| 8069 | - $formatted_conversation = array(); | |
| 8070 | - | |
| 8071 | - $formatted_conversation[] = array( | |
| 8072 | - 'role' => 'system', | |
| 8073 | - 'content' => $system_prompt_instructions . " " . $relevant_content | |
| 8074 | - ); | |
| 8075 | - | |
| 8076 | - foreach ($conversation_history as $message) { | |
| 8077 | - if (is_array($message) && isset($message['role']) && isset($message['content'])) { | |
| 8078 | - $role = $message['role']; | |
| 8079 | - if ($role === 'bot' || $role === 'agent') { | |
| 8080 | - $role = 'assistant'; | |
| 8081 | - } | |
| 8082 | - if (!in_array($role, ['system', 'assistant', 'user'])) { | |
| 8083 | - $role = 'user'; | |
| 8084 | - } | |
| 8085 | - $formatted_conversation[] = array( | |
| 8086 | - 'role' => $role, | |
| 8087 | - 'content' => $message['content'] | |
| 8088 | - ); | |
| 8089 | - } | |
| 8090 | - } | |
| 8091 | - | |
| 8092 | - if (headers_sent() || !function_exists('curl_init')) { | |
| 8093 | - $regular_response = $this->mxchat_generate_response_openrouter( | |
| 8094 | - $selected_model, | |
| 8095 | - $openrouter_api_key, | |
| 8096 | - $conversation_history, | |
| 8097 | - $relevant_content, | |
| 8098 | - $session_id | |
| 8099 | - ); | |
| 8100 | - | |
| 8101 | - // Save bot response to transcript | |
| 8102 | - if (!empty($regular_response) && !empty($session_id)) { | |
| 8103 | - $this->mxchat_save_chat_message($session_id, 'bot', $regular_response); | |
| 8104 | - } | |
| 8105 | - | |
| 8106 | - $response_data = [ | |
| 8107 | - 'text' => $regular_response, | |
| 8108 | - 'html' => '', | |
| 8109 | - 'session_id' => $session_id | |
| 8110 | - ]; | |
| 8111 | - | |
| 8112 | - if ($testing_data !== null) { | |
| 8113 | - $response_data['testing_data'] = $testing_data; | |
| 8114 | - } | |
| 8115 | - | |
| 8116 | - header('Content-Type: application/json'); | |
| 8117 | - echo json_encode($response_data); | |
| 8118 | - return true; | |
| 8119 | - } | |
| 8120 | - | |
| 8121 | - $body = json_encode([ | |
| 8122 | - 'model' => $selected_model, | |
| 8123 | - 'messages' => $formatted_conversation, | |
| 8124 | - 'temperature' => 1, | |
| 8125 | - 'stream' => true | |
| 8126 | - ]); | |
| 8127 | - | |
| 8128 | - // V2 retry-on-initial-connect: setup_streaming_headers is now lazy-fired | |
| 8129 | - // inside WRITEFUNCTION on first byte of a successful upstream. | |
| 8130 | - | |
| 8131 | - $captured_status_code = 0; | |
| 8132 | - $captured_body_pre_stream = ''; | |
| 8133 | - $full_response = ''; | |
| 8134 | - $stream_started = false; | |
| 8135 | - $buffer = ''; | |
| 8136 | - $errno = 0; | |
| 8137 | - $last_curl_error = ''; | |
| 8138 | - $http_code = 0; | |
| 8139 | - $max_attempts = $this->mxchat_retry_enabled() ? 3 : 1; | |
| 8140 | - $backoff_ms = array(0, 750, 2000); | |
| 8141 | - | |
| 8142 | - for ($attempt = 0; $attempt < $max_attempts; $attempt++) { | |
| 8143 | - if ($attempt > 0 && $backoff_ms[$attempt] > 0) { | |
| 8144 | - usleep($backoff_ms[$attempt] * 1000); | |
| 8145 | - } | |
| 8146 | - | |
| 8147 | - $captured_status_code = 0; | |
| 8148 | - $captured_body_pre_stream = ''; | |
| 8149 | - $full_response = ''; | |
| 8150 | - $stream_started = false; | |
| 8151 | - $buffer = ''; | |
| 8152 | - | |
| 8153 | - $ch = curl_init(); | |
| 8154 | - curl_setopt($ch, CURLOPT_URL, 'https://openrouter.ai/api/v1/chat/completions'); | |
| 8155 | - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false); | |
| 8156 | - curl_setopt($ch, CURLOPT_POST, true); | |
| 8157 | - curl_setopt($ch, CURLOPT_POSTFIELDS, $body); | |
| 8158 | - curl_setopt($ch, CURLOPT_HTTPHEADER, array( | |
| 8159 | - 'Content-Type: application/json', | |
| 8160 | - 'Authorization: Bearer ' . $openrouter_api_key, | |
| 8161 | - 'HTTP-Referer: ' . home_url(), | |
| 8162 | - 'X-Title: ' . get_bloginfo('name') | |
| 8163 | - )); | |
| 8164 | - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true); | |
| 8165 | - curl_setopt($ch, CURLOPT_TIMEOUT, 60); | |
| 8166 | - | |
| 8167 | - curl_setopt($ch, CURLOPT_HEADERFUNCTION, function($ch, $header) use (&$captured_status_code) { | |
| 8168 | - if ($captured_status_code === 0 && preg_match('#^HTTP/\S+\s+(\d+)\b#', $header, $m)) { | |
| 8169 | - $captured_status_code = (int) $m[1]; | |
| 8170 | - } | |
| 8171 | - return strlen($header); | |
| 8172 | - }); | |
| 8173 | - | |
| 8174 | - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, &$captured_status_code, &$captured_body_pre_stream, $testing_data) { | |
| 8175 | - if ($captured_status_code !== 0 && $captured_status_code !== 200) { | |
| 8176 | - $captured_body_pre_stream .= $data; | |
| 8177 | - return strlen($data); | |
| 8178 | - } | |
| 8179 | - | |
| 8180 | - if (!$this->streaming_headers_sent) { | |
| 8181 | - $this->setup_streaming_headers(); | |
| 8182 | - } | |
| 8183 | - | |
| 8184 | - if (!$stream_started && $testing_data !== null) { | |
| 8185 | - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n"; | |
| 8186 | - flush(); | |
| 8187 | - $stream_started = true; | |
| 8188 | - } | |
| 8189 | - | |
| 8190 | - $buffer .= $data; | |
| 8191 | - $lines = explode("\n", $buffer); | |
| 8192 | - $buffer = array_pop($lines); | |
| 8193 | - | |
| 8194 | - foreach ($lines as $line) { | |
| 8195 | - if (trim($line) === '') { | |
| 8196 | - continue; | |
| 8197 | - } | |
| 8198 | - if (strpos($line, 'data: ') !== 0) { | |
| 8199 | - continue; | |
| 8200 | - } | |
| 8201 | - | |
| 8202 | - $json_str = substr($line, 6); | |
| 8203 | - | |
| 8204 | - if (trim($json_str) === '[DONE]') { | |
| 8205 | - echo "data: [DONE]\n\n"; | |
| 8206 | - flush(); | |
| 8207 | - continue; | |
| 8208 | - } | |
| 8209 | - | |
| 8210 | - $json = json_decode(trim($json_str), true); | |
| 8211 | - if ($json && isset($json['choices'][0]['delta']['content'])) { | |
| 8212 | - $content = $json['choices'][0]['delta']['content']; | |
| 8213 | - $full_response .= $content; | |
| 8214 | - | |
| 8215 | - echo "data: " . json_encode(['content' => $content]) . "\n\n"; | |
| 8216 | - flush(); | |
| 8217 | - } | |
| 8218 | - } | |
| 8219 | - | |
| 8220 | - return strlen($data); | |
| 8221 | - }); | |
| 8222 | - | |
| 8223 | - $response = curl_exec($ch); | |
| 8224 | - $errno = curl_errno($ch); | |
| 8225 | - $last_curl_error = curl_error($ch); | |
| 8226 | - $http_code = $captured_status_code !== 0 ? $captured_status_code : (int) curl_getinfo($ch, CURLINFO_HTTP_CODE); | |
| 8227 | - curl_close($ch); | |
| 8228 | - | |
| 8229 | - if (!$errno && $http_code === 200) { | |
| 8230 | - break; | |
| 8231 | - } | |
| 8232 | - | |
| 8233 | - $is_transient = $this->mxchat_is_transient_provider_error_raw($http_code, $captured_body_pre_stream, 'openai', $errno); | |
| 8234 | - $can_retry = !$this->streaming_headers_sent | |
| 8235 | - && ($attempt + 1) < $max_attempts | |
| 8236 | - && $is_transient; | |
| 8237 | - | |
| 8238 | - if (defined('WP_DEBUG') && WP_DEBUG) { | |
| 8239 | - error_log(sprintf( | |
| 8240 | - '[MxChat] openrouter_stream initial-connect failure (attempt=%d/%d, status=%d, errno=%d, transient=%s, %s).', | |
| 8241 | - $attempt + 1, $max_attempts, $http_code, $errno, | |
| 8242 | - $is_transient ? 'yes' : 'no', | |
| 8243 | - $can_retry ? 'Retrying.' : 'Giving up.' | |
| 8244 | - )); | |
| 8245 | - } | |
| 8246 | - | |
| 8247 | - if (!$can_retry) { | |
| 8248 | - break; | |
| 8249 | - } | |
| 8250 | - } | |
| 8251 | - | |
| 8252 | - if (!$errno && $http_code === 200) { | |
| 8253 | - if (!empty($full_response) && !empty($session_id)) { | |
| 8254 | - $rag_context_for_storage = null; | |
| 8255 | - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']); | |
| 8256 | - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis); | |
| 8257 | - | |
| 8258 | - if ($has_rag_data || $has_action_data) { | |
| 8259 | - $rag_context_for_storage = []; | |
| 8260 | - | |
| 8261 | - if ($has_rag_data) { | |
| 8262 | - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches']; | |
| 8263 | - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? []; | |
| 8264 | - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35; | |
| 8265 | - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database'; | |
| 8266 | - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0; | |
| 8267 | - } | |
| 8268 | - | |
| 8269 | - if ($has_action_data) { | |
| 8270 | - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis; | |
| 8271 | - } | |
| 8272 | - } | |
| 8273 | - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage); | |
| 8274 | - } | |
| 8275 | - return true; | |
| 8276 | - } | |
| 8277 | - | |
| 8278 | - return $this->mxchat_stream_emit_fallback( | |
| 8279 | - 'openai', | |
| 8280 | - $this->mxchat_generate_response_openrouter($selected_model, $openrouter_api_key, $conversation_history, $relevant_content, $session_id), | |
| 8281 | - $session_id, | |
| 8282 | - $testing_data | |
| 8283 | - ); | |
| 8284 | - | |
| 8285 | - } catch (Exception $e) { | |
| 8286 | - return $this->mxchat_stream_emit_fallback( | |
| 8287 | - 'openai', | |
| 8288 | - $this->mxchat_generate_response_openrouter($selected_model, $openrouter_api_key, $conversation_history, $relevant_content, $session_id), | |
| 8289 | - $session_id, | |
| 8290 | - $testing_data | |
| 8291 | - ); | |
| 8292 | - } | |
| 8293 | -} | |
| 8294 | -private function mxchat_generate_response_openai_stream($selected_model, $api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) { | |
| 8295 | - try { | |
| 8296 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 8297 | - | |
| 8298 | - // Get system prompt instructions using centralized function | |
| 8299 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 8300 | - | |
| 8301 | - // Ensure conversation_history is an array | |
| 8302 | - if (!is_array($conversation_history)) { | |
| 8303 | - $conversation_history = array(); | |
| 8304 | - } | |
| 8305 | - | |
| 8306 | - // Format conversation history for OpenAI | |
| 8307 | - $formatted_conversation = array(); | |
| 8308 | - | |
| 8309 | - $formatted_conversation[] = array( | |
| 8310 | - 'role' => 'system', | |
| 8311 | - 'content' => $system_prompt_instructions . " " . $relevant_content | |
| 8312 | - ); | |
| 8313 | - | |
| 8314 | - foreach ($conversation_history as $message) { | |
| 8315 | - if (is_array($message) && isset($message['role']) && isset($message['content'])) { | |
| 8316 | - $role = $message['role']; | |
| 8317 | - if ($role === 'bot' || $role === 'agent') { | |
| 8318 | - $role = 'assistant'; | |
| 8319 | - } | |
| 8320 | - if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) { | |
| 8321 | - $role = 'user'; | |
| 8322 | - } | |
| 8323 | - $formatted_conversation[] = array( | |
| 8324 | - 'role' => $role, | |
| 8325 | - 'content' => $message['content'] | |
| 8326 | - ); | |
| 8327 | - } | |
| 8328 | - } | |
| 8329 | - | |
| 8330 | - // Check if we can actually stream | |
| 8331 | - if (headers_sent() || !function_exists('curl_init')) { | |
| 8332 | - // Fallback to regular response with testing data | |
| 8333 | - $regular_response = $this->mxchat_generate_response_openai( | |
| 8334 | - $selected_model, | |
| 8335 | - $api_key, | |
| 8336 | - $conversation_history, | |
| 8337 | - $relevant_content, | |
| 8338 | - $session_id | |
| 8339 | - ); | |
| 8340 | - | |
| 8341 | - // Save bot response to transcript | |
| 8342 | - if (!empty($regular_response) && !empty($session_id)) { | |
| 8343 | - $this->mxchat_save_chat_message($session_id, 'bot', $regular_response); | |
| 8344 | - } | |
| 8345 | - | |
| 8346 | - $response_data = [ | |
| 8347 | - 'text' => $regular_response, | |
| 8348 | - 'html' => '', | |
| 8349 | - 'session_id' => $session_id | |
| 8350 | - ]; | |
| 8351 | - | |
| 8352 | - if ($testing_data !== null) { | |
| 8353 | - $response_data['testing_data'] = $testing_data; | |
| 8354 | - } | |
| 8355 | - | |
| 8356 | - header('Content-Type: application/json'); | |
| 8357 | - echo json_encode($response_data); | |
| 8358 | - return true; | |
| 8359 | - } | |
| 8360 | - | |
| 8361 | - // Check if this is a GPT-5 model (supports reasoning_effort parameter) | |
| 8362 | - $is_gpt5_model = ( | |
| 8363 | - strpos($selected_model, 'gpt-5') === 0 || | |
| 8364 | - $selected_model === 'gpt-5.2' || | |
| 8365 | - $selected_model === 'gpt-5.1-2025-11-13' || | |
| 8366 | - $selected_model === 'gpt-5' || | |
| 8367 | - $selected_model === 'gpt-5-mini' || | |
| 8368 | - $selected_model === 'gpt-5-nano' | |
| 8369 | - ); | |
| 8370 | - | |
| 8371 | - // Build request body with optimal settings for fast streaming | |
| 8372 | - $request_body = [ | |
| 8373 | - 'model' => $selected_model, | |
| 8374 | - 'messages' => $formatted_conversation, | |
| 8375 | - 'temperature' => 1, | |
| 8376 | - 'stream' => true | |
| 8377 | - ]; | |
| 8378 | - | |
| 8379 | - // Add reasoning_effort only for GPT-5 models that support it | |
| 8380 | - // These chat models don't support reasoning_effort parameter | |
| 8381 | - $no_reasoning_models = array('gpt-5.2', 'gpt-5.1-chat-latest', 'gpt-5.3-chat-latest', 'gpt-5.4-mini', 'gpt-5.4-nano'); | |
| 8382 | - if ($is_gpt5_model && !in_array($selected_model, $no_reasoning_models, true)) { | |
| 8383 | - // GPT-5.1 uses 'low' instead of 'minimal' | |
| 8384 | - if ($selected_model === 'gpt-5.1-2025-11-13') { | |
| 8385 | - $request_body['reasoning_effort'] = 'low'; | |
| 8386 | - } elseif ($selected_model === 'gpt-5.5') { | |
| 8387 | - $request_body['reasoning_effort'] = 'none'; | |
| 8388 | - } elseif ($selected_model === 'gpt-5.4') { | |
| 8389 | - $request_body['reasoning_effort'] = 'none'; | |
| 8390 | - } else { | |
| 8391 | - $request_body['reasoning_effort'] = 'minimal'; | |
| 8392 | - } | |
| 8393 | - } | |
| 8394 | - | |
| 8395 | - $body = json_encode($request_body); | |
| 8396 | - | |
| 8397 | - // V2 retry-on-initial-connect: do NOT call setup_streaming_headers() here. | |
| 8398 | - // It is now lazy-fired inside the WRITEFUNCTION on the first byte of a | |
| 8399 | - // SUCCESSFUL upstream response, gated by the captured HTTP status. | |
| 8400 | - | |
| 8401 | - $captured_status_code = 0; | |
| 8402 | - $captured_body_pre_stream = ''; | |
| 8403 | - $full_response = ''; | |
| 8404 | - $stream_started = false; | |
| 8405 | - $buffer = ''; | |
| 8406 | - $errno = 0; | |
| 8407 | - $last_curl_error = ''; | |
| 8408 | - $http_code = 0; | |
| 8409 | - $max_attempts = $this->mxchat_retry_enabled() ? 3 : 1; | |
| 8410 | - $backoff_ms = array(0, 750, 2000); | |
| 8411 | - | |
| 8412 | - for ($attempt = 0; $attempt < $max_attempts; $attempt++) { | |
| 8413 | - if ($attempt > 0 && $backoff_ms[$attempt] > 0) { | |
| 8414 | - usleep($backoff_ms[$attempt] * 1000); | |
| 8415 | - } | |
| 8416 | - | |
| 8417 | - // Reset per-attempt capture state. | |
| 8418 | - $captured_status_code = 0; | |
| 8419 | - $captured_body_pre_stream = ''; | |
| 8420 | - $full_response = ''; | |
| 8421 | - $stream_started = false; | |
| 8422 | - $buffer = ''; | |
| 8423 | - | |
| 8424 | - $ch = curl_init(); | |
| 8425 | - curl_setopt($ch, CURLOPT_URL, 'https://api.openai.com/v1/chat/completions'); | |
| 8426 | - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false); | |
| 8427 | - curl_setopt($ch, CURLOPT_POST, true); | |
| 8428 | - curl_setopt($ch, CURLOPT_POSTFIELDS, $body); | |
| 8429 | - curl_setopt($ch, CURLOPT_HTTPHEADER, array( | |
| 8430 | - 'Content-Type: application/json', | |
| 8431 | - 'Authorization: Bearer ' . $api_key | |
| 8432 | - )); | |
| 8433 | - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true); | |
| 8434 | - curl_setopt($ch, CURLOPT_TIMEOUT, 60); | |
| 8435 | - | |
| 8436 | - // Capture HTTP status as soon as response headers arrive — fires before WRITEFUNCTION. | |
| 8437 | - curl_setopt($ch, CURLOPT_HEADERFUNCTION, function($ch, $header) use (&$captured_status_code) { | |
| 8438 | - if ($captured_status_code === 0 && preg_match('#^HTTP/\S+\s+(\d+)\b#', $header, $m)) { | |
| 8439 | - $captured_status_code = (int) $m[1]; | |
| 8440 | - } | |
| 8441 | - return strlen($header); | |
| 8442 | - }); | |
| 8443 | - | |
| 8444 | - // Buffer control for real-time streaming | |
| 8445 | - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, &$captured_status_code, &$captured_body_pre_stream, $testing_data) { | |
| 8446 | - // V2 guard: if upstream returned non-200, buffer body for transient | |
| 8447 | - // classification and DO NOT emit to client. Stream channel must NOT open. | |
| 8448 | - if ($captured_status_code !== 0 && $captured_status_code !== 200) { | |
| 8449 | - $captured_body_pre_stream .= $data; | |
| 8450 | - return strlen($data); | |
| 8451 | - } | |
| 8452 | - | |
| 8453 | - // Lazy-fire streaming headers on first byte of a SUCCESSFUL upstream. | |
| 8454 | - // After this point streaming_headers_sent === true → retry is structurally blocked. | |
| 8455 | - if (!$this->streaming_headers_sent) { | |
| 8456 | - $this->setup_streaming_headers(); | |
| 8457 | - } | |
| 8458 | - | |
| 8459 | - // Send testing data as the first event if available | |
| 8460 | - if (!$stream_started && $testing_data !== null) { | |
| 8461 | - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n"; | |
| 8462 | - flush(); | |
| 8463 | - $stream_started = true; | |
| 8464 | - } | |
| 8465 | - | |
| 8466 | - // CRITICAL FIX: Append new data to buffer | |
| 8467 | - $buffer .= $data; | |
| 8468 | - | |
| 8469 | - // Process complete lines only | |
| 8470 | - $lines = explode("\n", $buffer); | |
| 8471 | - | |
| 8472 | - // CRITICAL FIX: Keep the last incomplete line in the buffer | |
| 8473 | - $buffer = array_pop($lines); | |
| 8474 | - | |
| 8475 | - foreach ($lines as $line) { | |
| 8476 | - if (trim($line) === '') { | |
| 8477 | - continue; | |
| 8478 | - } | |
| 8479 | - if (strpos($line, 'data: ') !== 0) { | |
| 8480 | - continue; | |
| 8481 | - } | |
| 8482 | - | |
| 8483 | - $json_str = substr($line, 6); | |
| 8484 | - | |
| 8485 | - if (trim($json_str) === '[DONE]') { | |
| 8486 | - echo "data: [DONE]\n\n"; | |
| 8487 | - flush(); | |
| 8488 | - continue; | |
| 8489 | - } | |
| 8490 | - | |
| 8491 | - $json = json_decode(trim($json_str), true); | |
| 8492 | - if ($json && isset($json['choices'][0]['delta']['content'])) { | |
| 8493 | - $content = $json['choices'][0]['delta']['content']; | |
| 8494 | - $full_response .= $content; | |
| 8495 | - | |
| 8496 | - echo "data: " . json_encode(['content' => $content]) . "\n\n"; | |
| 8497 | - flush(); | |
| 8498 | - } | |
| 8499 | - } | |
| 8500 | - | |
| 8501 | - return strlen($data); | |
| 8502 | - }); | |
| 8503 | - | |
| 8504 | - $response = curl_exec($ch); | |
| 8505 | - $errno = curl_errno($ch); | |
| 8506 | - $last_curl_error = curl_error($ch); | |
| 8507 | - $http_code = $captured_status_code !== 0 ? $captured_status_code : (int) curl_getinfo($ch, CURLINFO_HTTP_CODE); | |
| 8508 | - curl_close($ch); | |
| 8509 | - | |
| 8510 | - if (!$errno && $http_code === 200) { | |
| 8511 | - break; // Happy path — WRITEFUNCTION already streamed everything. | |
| 8512 | - } | |
| 8513 | - | |
| 8514 | - $is_transient = $this->mxchat_is_transient_provider_error_raw($http_code, $captured_body_pre_stream, 'openai', $errno); | |
| 8515 | - $can_retry = !$this->streaming_headers_sent | |
| 8516 | - && ($attempt + 1) < $max_attempts | |
| 8517 | - && $is_transient; | |
| 8518 | - | |
| 8519 | - if (defined('WP_DEBUG') && WP_DEBUG) { | |
| 8520 | - error_log(sprintf( | |
| 8521 | - '[MxChat] openai_stream initial-connect failure (attempt=%d/%d, status=%d, errno=%d, transient=%s, %s).', | |
| 8522 | - $attempt + 1, $max_attempts, $http_code, $errno, | |
| 8523 | - $is_transient ? 'yes' : 'no', | |
| 8524 | - $can_retry ? 'Retrying.' : 'Giving up.' | |
| 8525 | - )); | |
| 8526 | - } | |
| 8527 | - | |
| 8528 | - if (!$can_retry) { | |
| 8529 | - break; | |
| 8530 | - } | |
| 8531 | - } | |
| 8532 | - | |
| 8533 | - // Post-loop branch. | |
| 8534 | - if (!$errno && $http_code === 200) { | |
| 8535 | - // Happy path — save the complete response to maintain chat persistence. | |
| 8536 | - if (!empty($full_response) && !empty($session_id)) { | |
| 8537 | - $rag_context_for_storage = null; | |
| 8538 | - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']); | |
| 8539 | - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis); | |
| 8540 | - | |
| 8541 | - if ($has_rag_data || $has_action_data) { | |
| 8542 | - $rag_context_for_storage = []; | |
| 8543 | - | |
| 8544 | - if ($has_rag_data) { | |
| 8545 | - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches']; | |
| 8546 | - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? []; | |
| 8547 | - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35; | |
| 8548 | - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database'; | |
| 8549 | - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0; | |
| 8550 | - } | |
| 8551 | - | |
| 8552 | - if ($has_action_data) { | |
| 8553 | - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis; | |
| 8554 | - } | |
| 8555 | - } | |
| 8556 | - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage); | |
| 8557 | - } | |
| 8558 | - | |
| 8559 | - return true; | |
| 8560 | - } | |
| 8561 | - | |
| 8562 | - // Failure path — branch on whether SSE channel was opened. | |
| 8563 | - return $this->mxchat_stream_emit_fallback( | |
| 8564 | - 'openai', | |
| 8565 | - $this->mxchat_generate_response_openai($selected_model, $api_key, $conversation_history, $relevant_content, $session_id), | |
| 8566 | - $session_id, | |
| 8567 | - $testing_data | |
| 8568 | - ); | |
| 8569 | - | |
| 8570 | - } catch (Exception $e) { | |
| 8571 | - return $this->mxchat_stream_emit_fallback( | |
| 8572 | - 'openai', | |
| 8573 | - $this->mxchat_generate_response_openai($selected_model, $api_key, $conversation_history, $relevant_content, $session_id), | |
| 8574 | - $session_id, | |
| 8575 | - $testing_data | |
| 8576 | - ); | |
| 8577 | - } | |
| 8578 | -} | |
| 8579 | - | |
| 8580 | -/** | |
| 8581 | - * Shared fallback emitter for streaming chat functions. Two outcomes: | |
| 8582 | - * - streaming_headers_sent === true: SSE channel is open. Emit fallback content | |
| 8583 | - * as `data: {...}\n\n` + `data: [DONE]\n\n` so the widget renders it as a | |
| 8584 | - * normal bot bubble. Transcript row is persisted. | |
| 8585 | - * - streaming_headers_sent === false: SSE channel never opened (retries | |
| 8586 | - * exhausted on initial connect). Emit a clean JSON response — the path | |
| 8587 | - * the widget would normally hit if streaming wasn't even attempted. | |
| 8588 | - * | |
| 8589 | - * Used by all six *_stream functions after their per-attempt retry loop. | |
| 8590 | - */ | |
| 8591 | -private function mxchat_stream_emit_fallback($provider_hint, $regular_response, $session_id, $testing_data = null) { | |
| 8592 | - $is_error_array = is_array($regular_response) && isset($regular_response['error']); | |
| 8593 | - | |
| 8594 | - if ($this->streaming_headers_sent) { | |
| 8595 | - if ($is_error_array) { | |
| 8596 | - echo "data: " . json_encode([ | |
| 8597 | - 'error' => true, | |
| 8598 | - 'error_message' => $regular_response['error'], | |
| 8599 | - 'error_code' => $regular_response['error_code'] ?? 'api_error', | |
| 8600 | - 'text' => $regular_response['error'], | |
| 8601 | - 'message' => $regular_response['error'] | |
| 8602 | - ]) . "\n\n"; | |
| 8603 | - echo "data: [DONE]\n\n"; | |
| 8604 | - flush(); | |
| 8605 | - return true; | |
| 8606 | - } | |
| 8607 | - $fallback_message = (string) $regular_response; | |
| 8608 | - if (!empty($fallback_message) && !empty($session_id)) { | |
| 8609 | - $this->mxchat_save_chat_message($session_id, 'bot', $fallback_message); | |
| 8610 | - } | |
| 8611 | - echo "data: " . json_encode(['content' => $fallback_message]) . "\n\n"; | |
| 8612 | - echo "data: [DONE]\n\n"; | |
| 8613 | - flush(); | |
| 8614 | - return true; | |
| 8615 | - } | |
| 8616 | - | |
| 8617 | - // SSE channel never opened — clean JSON fallback. | |
| 8618 | - if ($is_error_array) { | |
| 8619 | - header('Content-Type: application/json'); | |
| 8620 | - echo json_encode(array( | |
| 8621 | - 'error' => true, | |
| 8622 | - 'error_message' => $regular_response['error'], | |
| 8623 | - 'error_code' => $regular_response['error_code'] ?? 'api_error', | |
| 8624 | - 'text' => $regular_response['error'], | |
| 8625 | - 'message' => $regular_response['error'], | |
| 8626 | - )); | |
| 8627 | - return true; | |
| 8628 | - } | |
| 8629 | - | |
| 8630 | - $fallback_message = (string) $regular_response; | |
| 8631 | - if (!empty($fallback_message) && !empty($session_id)) { | |
| 8632 | - $this->mxchat_save_chat_message($session_id, 'bot', $fallback_message); | |
| 8633 | - } | |
| 8634 | - $response_data = array( | |
| 8635 | - 'text' => $fallback_message, | |
| 8636 | - 'html' => '', | |
| 8637 | - 'session_id' => $session_id, | |
| 8638 | - ); | |
| 8639 | - if ($testing_data !== null) { | |
| 8640 | - $response_data['testing_data'] = $testing_data; | |
| 8641 | - } | |
| 8642 | - header('Content-Type: application/json'); | |
| 8643 | - echo json_encode($response_data); | |
| 8644 | - return true; | |
| 8645 | -} | |
| 8646 | - | |
| 8647 | -/** | |
| 8648 | - * Resolve custom (OpenAI-compatible) provider config from settings. | |
| 8649 | - * Returns ['base_url','api_key','model','auth_scheme','api_version','chat_url','headers']. | |
| 8650 | - */ | |
| 8651 | -private function mxchat_resolve_custom_provider() { | |
| 8652 | - $base_url = isset($this->options['custom_provider_base_url']) ? rtrim(trim((string) $this->options['custom_provider_base_url']), '/') : ''; | |
| 8653 | - $api_key = isset($this->options['custom_provider_api_key']) ? trim((string) $this->options['custom_provider_api_key']) : ''; | |
| 8654 | - $model = isset($this->options['custom_provider_model']) ? trim((string) $this->options['custom_provider_model']) : ''; | |
| 8655 | - $auth_scheme = isset($this->options['custom_provider_auth_scheme']) ? $this->options['custom_provider_auth_scheme'] : 'bearer'; | |
| 8656 | - $api_version = isset($this->options['custom_provider_api_version']) ? trim((string) $this->options['custom_provider_api_version']) : ''; | |
| 8657 | - | |
| 8658 | - $chat_url = $base_url . '/chat/completions'; | |
| 8659 | - if (!empty($api_version)) { | |
| 8660 | - $chat_url .= (strpos($chat_url, '?') === false ? '?' : '&') . 'api-version=' . rawurlencode($api_version); | |
| 8661 | - } | |
| 8662 | - | |
| 8663 | - $headers = array('Content-Type: application/json'); | |
| 8664 | - if (!empty($api_key)) { | |
| 8665 | - if ($auth_scheme === 'api-key') { | |
| 8666 | - $headers[] = 'api-key: ' . $api_key; | |
| 8667 | - } else { | |
| 8668 | - $headers[] = 'Authorization: Bearer ' . $api_key; | |
| 8669 | - } | |
| 8670 | - } | |
| 8671 | - | |
| 8672 | - return array( | |
| 8673 | - 'base_url' => $base_url, | |
| 8674 | - 'api_key' => $api_key, | |
| 8675 | - 'model' => $model !== '' ? $model : 'default', | |
| 8676 | - 'auth_scheme' => $auth_scheme, | |
| 8677 | - 'api_version' => $api_version, | |
| 8678 | - 'chat_url' => $chat_url, | |
| 8679 | - 'headers' => $headers, | |
| 8680 | - ); | |
| 8681 | -} | |
| 8682 | - | |
| 8683 | -/** | |
| 8684 | - * Streaming chat completion against an OpenAI-compatible custom provider | |
| 8685 | - * (Ollama, LM Studio, vLLM, llama.cpp, Azure OpenAI, etc.). | |
| 8686 | - * Mirrors mxchat_generate_response_openai_stream but with parameterized URL/auth/model. | |
| 8687 | - */ | |
| 8688 | -private function mxchat_generate_response_custom_stream($selected_model, $conversation_history, $relevant_content, $session_id, $testing_data = null) { | |
| 8689 | - try { | |
| 8690 | - $cfg = $this->mxchat_resolve_custom_provider(); | |
| 8691 | - if (empty($cfg['base_url'])) { | |
| 8692 | - return array('error' => esc_html__('Custom provider Base URL is not configured.', 'mxchat'), 'error_code' => 'missing_custom_provider_base_url'); | |
| 8693 | - } | |
| 8694 | - | |
| 8695 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 8696 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 8697 | - if (!is_array($conversation_history)) { | |
| 8698 | - $conversation_history = array(); | |
| 8699 | - } | |
| 8700 | - | |
| 8701 | - $formatted_conversation = array(); | |
| 8702 | - $formatted_conversation[] = array( | |
| 8703 | - 'role' => 'system', | |
| 8704 | - 'content' => $system_prompt_instructions . ' ' . $relevant_content, | |
| 8705 | - ); | |
| 8706 | - foreach ($conversation_history as $message) { | |
| 8707 | - if (is_array($message) && isset($message['role']) && isset($message['content'])) { | |
| 8708 | - $role = $message['role']; | |
| 8709 | - if ($role === 'bot' || $role === 'agent') { $role = 'assistant'; } | |
| 8710 | - if (!in_array($role, array('system', 'assistant', 'user', 'function', 'tool'))) { $role = 'user'; } | |
| 8711 | - $formatted_conversation[] = array('role' => $role, 'content' => $message['content']); | |
| 8712 | - } | |
| 8713 | - } | |
| 8714 | - | |
| 8715 | - if (headers_sent() || !function_exists('curl_init')) { | |
| 8716 | - // No streaming capability — fall through to non-stream wrapper | |
| 8717 | - $regular = $this->mxchat_generate_response_custom($selected_model, $conversation_history, $relevant_content); | |
| 8718 | - if (!empty($regular) && !empty($session_id) && is_string($regular)) { | |
| 8719 | - $this->mxchat_save_chat_message($session_id, 'bot', $regular); | |
| 8720 | - } | |
| 8721 | - $response_data = array('text' => is_string($regular) ? $regular : '', 'html' => '', 'session_id' => $session_id); | |
| 8722 | - if ($testing_data !== null) { $response_data['testing_data'] = $testing_data; } | |
| 8723 | - header('Content-Type: application/json'); | |
| 8724 | - echo json_encode($response_data); | |
| 8725 | - return true; | |
| 8726 | - } | |
| 8727 | - | |
| 8728 | - $request_body = array( | |
| 8729 | - 'model' => $cfg['model'], | |
| 8730 | - 'messages' => $formatted_conversation, | |
| 8731 | - 'stream' => true, | |
| 8732 | - ); | |
| 8733 | - $body = json_encode($request_body); | |
| 8734 | - | |
| 8735 | - // V2 retry-on-initial-connect: setup_streaming_headers is lazy-fired in WRITEFUNCTION. | |
| 8736 | - | |
| 8737 | - $captured_status_code = 0; | |
| 8738 | - $captured_body_pre_stream = ''; | |
| 8739 | - $full_response = ''; | |
| 8740 | - $stream_started = false; | |
| 8741 | - $buffer = ''; | |
| 8742 | - $errno = 0; | |
| 8743 | - $http_code = 0; | |
| 8744 | - $max_attempts = $this->mxchat_retry_enabled() ? 3 : 1; | |
| 8745 | - $backoff_ms = array(0, 750, 2000); | |
| 8746 | - | |
| 8747 | - for ($attempt = 0; $attempt < $max_attempts; $attempt++) { | |
| 8748 | - if ($attempt > 0 && $backoff_ms[$attempt] > 0) { | |
| 8749 | - usleep($backoff_ms[$attempt] * 1000); | |
| 8750 | - } | |
| 8751 | - | |
| 8752 | - $captured_status_code = 0; | |
| 8753 | - $captured_body_pre_stream = ''; | |
| 8754 | - $full_response = ''; | |
| 8755 | - $stream_started = false; | |
| 8756 | - $buffer = ''; | |
| 8757 | - | |
| 8758 | - $ch = curl_init(); | |
| 8759 | - curl_setopt($ch, CURLOPT_URL, $cfg['chat_url']); | |
| 8760 | - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false); | |
| 8761 | - curl_setopt($ch, CURLOPT_POST, true); | |
| 8762 | - curl_setopt($ch, CURLOPT_POSTFIELDS, $body); | |
| 8763 | - curl_setopt($ch, CURLOPT_HTTPHEADER, $cfg['headers']); | |
| 8764 | - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true); | |
| 8765 | - curl_setopt($ch, CURLOPT_TIMEOUT, 120); | |
| 8766 | - | |
| 8767 | - curl_setopt($ch, CURLOPT_HEADERFUNCTION, function($ch, $header) use (&$captured_status_code) { | |
| 8768 | - if ($captured_status_code === 0 && preg_match('#^HTTP/\S+\s+(\d+)\b#', $header, $m)) { | |
| 8769 | - $captured_status_code = (int) $m[1]; | |
| 8770 | - } | |
| 8771 | - return strlen($header); | |
| 8772 | - }); | |
| 8773 | - | |
| 8774 | - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, &$captured_status_code, &$captured_body_pre_stream, $testing_data) { | |
| 8775 | - if ($captured_status_code !== 0 && $captured_status_code !== 200) { | |
| 8776 | - $captured_body_pre_stream .= $data; | |
| 8777 | - return strlen($data); | |
| 8778 | - } | |
| 8779 | - | |
| 8780 | - if (!$this->streaming_headers_sent) { | |
| 8781 | - $this->setup_streaming_headers(); | |
| 8782 | - } | |
| 8783 | - | |
| 8784 | - if (!$stream_started && $testing_data !== null) { | |
| 8785 | - echo "data: " . json_encode(array('testing_data' => $testing_data)) . "\n\n"; | |
| 8786 | - flush(); | |
| 8787 | - $stream_started = true; | |
| 8788 | - } | |
| 8789 | - $buffer .= $data; | |
| 8790 | - $lines = explode("\n", $buffer); | |
| 8791 | - $buffer = array_pop($lines); | |
| 8792 | - foreach ($lines as $line) { | |
| 8793 | - if (trim($line) === '') { continue; } | |
| 8794 | - if (strpos($line, 'data: ') !== 0) { continue; } | |
| 8795 | - $json_str = substr($line, 6); | |
| 8796 | - if (trim($json_str) === '[DONE]') { | |
| 8797 | - echo "data: [DONE]\n\n"; | |
| 8798 | - flush(); | |
| 8799 | - continue; | |
| 8800 | - } | |
| 8801 | - $json = json_decode(trim($json_str), true); | |
| 8802 | - if ($json && isset($json['choices'][0]['delta']['content'])) { | |
| 8803 | - $content = $json['choices'][0]['delta']['content']; | |
| 8804 | - $full_response .= $content; | |
| 8805 | - echo "data: " . json_encode(array('content' => $content)) . "\n\n"; | |
| 8806 | - flush(); | |
| 8807 | - } | |
| 8808 | - } | |
| 8809 | - return strlen($data); | |
| 8810 | - }); | |
| 8811 | - | |
| 8812 | - $response = curl_exec($ch); | |
| 8813 | - $errno = curl_errno($ch); | |
| 8814 | - $http_code = $captured_status_code !== 0 ? $captured_status_code : (int) curl_getinfo($ch, CURLINFO_HTTP_CODE); | |
| 8815 | - curl_close($ch); | |
| 8816 | - | |
| 8817 | - if (!$errno && $http_code === 200) { | |
| 8818 | - break; | |
| 8819 | - } | |
| 8820 | - | |
| 8821 | - $is_transient = $this->mxchat_is_transient_provider_error_raw($http_code, $captured_body_pre_stream, 'openai', $errno); | |
| 8822 | - $can_retry = !$this->streaming_headers_sent | |
| 8823 | - && ($attempt + 1) < $max_attempts | |
| 8824 | - && $is_transient; | |
| 8825 | - | |
| 8826 | - if (defined('WP_DEBUG') && WP_DEBUG) { | |
| 8827 | - error_log(sprintf( | |
| 8828 | - '[MxChat] custom_stream initial-connect failure (attempt=%d/%d, status=%d, errno=%d, transient=%s, %s).', | |
| 8829 | - $attempt + 1, $max_attempts, $http_code, $errno, | |
| 8830 | - $is_transient ? 'yes' : 'no', | |
| 8831 | - $can_retry ? 'Retrying.' : 'Giving up.' | |
| 8832 | - )); | |
| 8833 | - } | |
| 8834 | - | |
| 8835 | - if (!$can_retry) { | |
| 8836 | - break; | |
| 8837 | - } | |
| 8838 | - } | |
| 8839 | - | |
| 8840 | - if (!$errno && $http_code === 200) { | |
| 8841 | - if (!empty($full_response) && !empty($session_id)) { | |
| 8842 | - $this->mxchat_save_chat_message($session_id, 'bot', $full_response); | |
| 8843 | - } | |
| 8844 | - return true; | |
| 8845 | - } | |
| 8846 | - | |
| 8847 | - return $this->mxchat_stream_emit_fallback( | |
| 8848 | - 'openai', | |
| 8849 | - $this->mxchat_generate_response_custom($selected_model, $conversation_history, $relevant_content), | |
| 8850 | - $session_id, | |
| 8851 | - $testing_data | |
| 8852 | - ); | |
| 8853 | - | |
| 8854 | - } catch (Exception $e) { | |
| 8855 | - return array('error' => sprintf(esc_html__('Custom provider error: %s', 'mxchat'), $e->getMessage()), 'error_code' => 'custom_provider_exception'); | |
| 8856 | - } | |
| 8857 | -} | |
| 8858 | - | |
| 8859 | -/** | |
| 8860 | - * Non-streaming chat completion against a custom OpenAI-compatible provider. | |
| 8861 | - * Returns string content on success, array['error'=>...] on failure. | |
| 8862 | - */ | |
| 8863 | -private function mxchat_generate_response_custom($selected_model, $conversation_history, $relevant_content) { | |
| 8864 | - $cfg = $this->mxchat_resolve_custom_provider(); | |
| 8865 | - if (empty($cfg['base_url'])) { | |
| 8866 | - return array('error' => esc_html__('Custom provider Base URL is not configured.', 'mxchat'), 'error_code' => 'missing_custom_provider_base_url'); | |
| 8867 | - } | |
| 8868 | - | |
| 8869 | - $bot_id = $this->get_current_bot_id(null); | |
| 8870 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, null); | |
| 8871 | - if (!is_array($conversation_history)) { | |
| 8872 | - $conversation_history = array(); | |
| 8873 | - } | |
| 8874 | - | |
| 8875 | - $messages = array(array( | |
| 8876 | - 'role' => 'system', | |
| 8877 | - 'content' => $system_prompt_instructions . ' ' . $relevant_content, | |
| 8878 | - )); | |
| 8879 | - foreach ($conversation_history as $message) { | |
| 8880 | - if (is_array($message) && isset($message['role']) && isset($message['content'])) { | |
| 8881 | - $role = $message['role']; | |
| 8882 | - if ($role === 'bot' || $role === 'agent') { $role = 'assistant'; } | |
| 8883 | - if (!in_array($role, array('system', 'assistant', 'user', 'function', 'tool'))) { $role = 'user'; } | |
| 8884 | - $messages[] = array('role' => $role, 'content' => $message['content']); | |
| 8885 | - } | |
| 8886 | - } | |
| 8887 | - | |
| 8888 | - $headers_assoc = array('Content-Type' => 'application/json'); | |
| 8889 | - if (!empty($cfg['api_key'])) { | |
| 8890 | - if ($cfg['auth_scheme'] === 'api-key') { | |
| 8891 | - $headers_assoc['api-key'] = $cfg['api_key']; | |
| 8892 | - } else { | |
| 8893 | - $headers_assoc['Authorization'] = 'Bearer ' . $cfg['api_key']; | |
| 8894 | - } | |
| 8895 | - } | |
| 8896 | - | |
| 8897 | - $response = $this->mxchat_provider_call_with_retry($cfg['chat_url'], array( | |
| 8898 | - 'headers' => $headers_assoc, | |
| 8899 | - 'body' => wp_json_encode(array( | |
| 8900 | - 'model' => $cfg['model'], | |
| 8901 | - 'messages' => $messages, | |
| 8902 | - )), | |
| 8903 | - 'timeout' => 120, | |
| 8904 | - ), 'openai'); | |
| 8905 | - | |
| 8906 | - if (is_wp_error($response)) { | |
| 8907 | - return array('error' => sprintf(esc_html__('Custom provider request failed: %s', 'mxchat'), $response->get_error_message()), 'error_code' => 'custom_provider_network_error'); | |
| 8908 | - } | |
| 8909 | - $code = (int) wp_remote_retrieve_response_code($response); | |
| 8910 | - if ($code < 200 || $code >= 300) { | |
| 8911 | - return array('error' => sprintf(esc_html__('Custom provider returned HTTP %d.', 'mxchat'), $code), 'error_code' => 'custom_provider_http_error'); | |
| 8912 | - } | |
| 8913 | - $body = json_decode(wp_remote_retrieve_body($response), true); | |
| 8914 | - if (isset($body['choices'][0]['message']['content'])) { | |
| 8915 | - return (string) $body['choices'][0]['message']['content']; | |
| 8916 | - } | |
| 8917 | - return array('error' => esc_html__('Custom provider returned an unexpected response shape.', 'mxchat'), 'error_code' => 'custom_provider_response_shape'); | |
| 8918 | -} | |
| 8919 | - | |
| 8920 | -/** | |
| 8921 | - * Generate response using OpenAI Responses API with web search tool | |
| 8922 | - * This uses the newer Responses API which supports web search functionality | |
| 8923 | - */ | |
| 8924 | -private function mxchat_generate_response_openai_web_search($selected_model, $api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null, $streaming = false) { | |
| 8925 | - try { | |
| 8926 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 8927 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 8928 | - | |
| 8929 | - if (!is_array($conversation_history)) { | |
| 8930 | - $conversation_history = array(); | |
| 8931 | - } | |
| 8932 | - | |
| 8933 | - // Build the input for Responses API | |
| 8934 | - // The Responses API uses a different format - we need to construct the input properly | |
| 8935 | - $input_parts = []; | |
| 8936 | - | |
| 8937 | - // Add system instructions as context | |
| 8938 | - $system_context = $system_prompt_instructions . "\n\n" . $relevant_content; | |
| 8939 | - | |
| 8940 | - // Build conversation as input items for Responses API | |
| 8941 | - foreach ($conversation_history as $message) { | |
| 8942 | - if (is_array($message) && isset($message['role']) && isset($message['content'])) { | |
| 8943 | - $role = $message['role']; | |
| 8944 | - if ($role === 'bot' || $role === 'agent') { | |
| 8945 | - $role = 'assistant'; | |
| 8946 | - } | |
| 8947 | - if (!in_array($role, ['assistant', 'user'])) { | |
| 8948 | - $role = 'user'; | |
| 8949 | - } | |
| 8950 | - $input_parts[] = [ | |
| 8951 | - 'type' => 'message', | |
| 8952 | - 'role' => $role, | |
| 8953 | - 'content' => $message['content'] | |
| 8954 | - ]; | |
| 8955 | - } | |
| 8956 | - } | |
| 8957 | - | |
| 8958 | - // Build request body for Responses API | |
| 8959 | - $request_body = [ | |
| 8960 | - 'model' => $selected_model, | |
| 8961 | - 'input' => $input_parts, | |
| 8962 | - 'instructions' => $system_context, | |
| 8963 | - 'stream' => $streaming | |
| 8964 | - ]; | |
| 8965 | - | |
| 8966 | - // Only add web search tool if web search is enabled in settings | |
| 8967 | - $web_search_enabled = isset($this->options['enable_web_search']) && $this->options['enable_web_search'] === 'on'; | |
| 8968 | - if ($web_search_enabled) { | |
| 8969 | - $request_body['tools'] = [ | |
| 8970 | - ['type' => 'web_search'] | |
| 8971 | - ]; | |
| 8972 | - } | |
| 8973 | - | |
| 8974 | - // Add reasoning effort for supported models | |
| 8975 | - $is_gpt5_model = strpos($selected_model, 'gpt-5') === 0; | |
| 8976 | - $no_reasoning_web = array('gpt-5.2', 'gpt-5.3-chat-latest', 'gpt-5.4-mini', 'gpt-5.4-nano'); | |
| 8977 | - if ($is_gpt5_model && !in_array($selected_model, $no_reasoning_web, true)) { | |
| 8978 | - if ($selected_model === 'gpt-5.1-2025-11-13') { | |
| 8979 | - $request_body['reasoning'] = ['effort' => 'low']; | |
| 8980 | - } elseif ($selected_model === 'gpt-5.5') { | |
| 8981 | - $request_body['reasoning'] = ['effort' => 'low']; | |
| 8982 | - } elseif ($selected_model === 'gpt-5.4') { | |
| 8983 | - $request_body['reasoning'] = ['effort' => 'low']; | |
| 8984 | - } | |
| 8985 | - } | |
| 8986 | - | |
| 8987 | - //error_log("MXCHAT WEB SEARCH: Request body: " . json_encode($request_body)); | |
| 8988 | - | |
| 8989 | - if ($streaming) { | |
| 8990 | - return $this->mxchat_web_search_streaming_response($request_body, $api_key, $session_id, $testing_data); | |
| 8991 | - } else { | |
| 8992 | - return $this->mxchat_web_search_non_streaming_response($request_body, $api_key, $session_id, $testing_data); | |
| 8993 | - } | |
| 8994 | - | |
| 8995 | - } catch (Exception $e) { | |
| 8996 | - //error_log("MXCHAT WEB SEARCH ERROR: " . $e->getMessage()); | |
| 8997 | - return [ | |
| 8998 | - 'error' => sprintf(esc_html__('Web search error: %s', 'mxchat'), esc_html($e->getMessage())), | |
| 8999 | - 'error_code' => 'web_search_exception' | |
| 9000 | - ]; | |
| 9001 | - } | |
| 9002 | -} | |
| 9003 | - | |
| 9004 | -/** | |
| 9005 | - * Handle non-streaming web search response | |
| 9006 | - */ | |
| 9007 | -private function mxchat_web_search_non_streaming_response($request_body, $api_key, $session_id, $testing_data) { | |
| 9008 | - $request_body['stream'] = false; | |
| 9009 | - | |
| 9010 | - $response = $this->mxchat_provider_call_with_retry('https://api.openai.com/v1/responses', array( | |
| 9011 | - 'headers' => array( | |
| 9012 | - 'Authorization' => 'Bearer ' . $api_key, | |
| 9013 | - 'Content-Type' => 'application/json' | |
| 9014 | - ), | |
| 9015 | - 'body' => json_encode($request_body), | |
| 9016 | - 'timeout' => 90 | |
| 9017 | - ), 'openai'); | |
| 9018 | - | |
| 9019 | - if (is_wp_error($response)) { | |
| 9020 | - //error_log("MXCHAT WEB SEARCH ERROR: WP Error: " . $response->get_error_message()); | |
| 9021 | - return [ | |
| 9022 | - 'error' => esc_html__('Failed to connect to OpenAI web search API', 'mxchat'), | |
| 9023 | - 'error_code' => 'web_search_connection_error' | |
| 9024 | - ]; | |
| 9025 | - } | |
| 9026 | - | |
| 9027 | - $response_code = wp_remote_retrieve_response_code($response); | |
| 9028 | - $response_body = wp_remote_retrieve_body($response); | |
| 9029 | - | |
| 9030 | - //error_log("MXCHAT WEB SEARCH: Response code: " . $response_code); | |
| 9031 | - //error_log("MXCHAT WEB SEARCH: Response body (first 2000): " . substr($response_body, 0, 2000)); | |
| 9032 | - | |
| 9033 | - if ($response_code !== 200) { | |
| 9034 | - $error_data = json_decode($response_body, true); | |
| 9035 | - $error_message = $error_data['error']['message'] ?? 'Unknown API error'; | |
| 9036 | - return [ | |
| 9037 | - 'error' => sprintf(esc_html__('OpenAI API error: %s', 'mxchat'), esc_html($error_message)), | |
| 9038 | - 'error_code' => 'web_search_api_error' | |
| 9039 | - ]; | |
| 9040 | - } | |
| 9041 | - | |
| 9042 | - $result = json_decode($response_body, true); | |
| 9043 | - | |
| 9044 | - if (json_last_error() !== JSON_ERROR_NONE) { | |
| 9045 | - return [ | |
| 9046 | - 'error' => esc_html__('Invalid response from OpenAI', 'mxchat'), | |
| 9047 | - 'error_code' => 'web_search_json_error' | |
| 9048 | - ]; | |
| 9049 | - } | |
| 9050 | - | |
| 9051 | - // Extract the response text and citations from Responses API format | |
| 9052 | - $output_text = ''; | |
| 9053 | - $citations = []; | |
| 9054 | - | |
| 9055 | - if (isset($result['output'])) { | |
| 9056 | - foreach ($result['output'] as $output_item) { | |
| 9057 | - if ($output_item['type'] === 'message' && isset($output_item['content'])) { | |
| 9058 | - foreach ($output_item['content'] as $content_item) { | |
| 9059 | - if ($content_item['type'] === 'output_text') { | |
| 9060 | - $output_text .= $content_item['text']; | |
| 9061 | - | |
| 9062 | - // Extract citations/annotations | |
| 9063 | - if (isset($content_item['annotations'])) { | |
| 9064 | - foreach ($content_item['annotations'] as $annotation) { | |
| 9065 | - if ($annotation['type'] === 'url_citation') { | |
| 9066 | - $citations[] = [ | |
| 9067 | - 'url' => $annotation['url'], | |
| 9068 | - 'title' => $annotation['title'] ?? '' | |
| 9069 | - ]; | |
| 9070 | - } | |
| 9071 | - } | |
| 9072 | - } | |
| 9073 | - } | |
| 9074 | - } | |
| 9075 | - } | |
| 9076 | - } | |
| 9077 | - } | |
| 9078 | - | |
| 9079 | - // If we have citations, append them to the response | |
| 9080 | - if (!empty($citations)) { | |
| 9081 | - $output_text .= "\n\n**Sources:**\n"; | |
| 9082 | - $seen_urls = []; | |
| 9083 | - foreach ($citations as $citation) { | |
| 9084 | - if (!in_array($citation['url'], $seen_urls)) { | |
| 9085 | - $seen_urls[] = $citation['url']; | |
| 9086 | - $title = !empty($citation['title']) ? $citation['title'] : $citation['url']; | |
| 9087 | - $output_text .= "- [" . $title . "](" . $citation['url'] . ")\n"; | |
| 9088 | - } | |
| 9089 | - } | |
| 9090 | - } | |
| 9091 | - | |
| 9092 | - // Transcript save is handled by the main handler (mxchat_handle_chat_request) | |
| 9093 | - // which includes rag_context for the "sources" link in transcripts. | |
| 9094 | - | |
| 9095 | - return $output_text; | |
| 9096 | -} | |
| 9097 | - | |
| 9098 | -/** | |
| 9099 | - * Handle streaming web search response using Responses API | |
| 9100 | - */ | |
| 9101 | -private function mxchat_web_search_streaming_response($request_body, $api_key, $session_id, $testing_data) { | |
| 9102 | - $request_body['stream'] = true; | |
| 9103 | - | |
| 9104 | - // Check if we can stream | |
| 9105 | - if (headers_sent() || !function_exists('curl_init')) { | |
| 9106 | - // Fallback to non-streaming | |
| 9107 | - return $this->mxchat_web_search_non_streaming_response($request_body, $api_key, $session_id, $testing_data); | |
| 9108 | - } | |
| 9109 | - | |
| 9110 | - // Setup streaming headers | |
| 9111 | - $this->setup_streaming_headers(); | |
| 9112 | - | |
| 9113 | - $ch = curl_init(); | |
| 9114 | - curl_setopt($ch, CURLOPT_URL, 'https://api.openai.com/v1/responses'); | |
| 9115 | - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false); | |
| 9116 | - curl_setopt($ch, CURLOPT_POST, true); | |
| 9117 | - curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($request_body)); | |
| 9118 | - curl_setopt($ch, CURLOPT_HTTPHEADER, array( | |
| 9119 | - 'Content-Type: application/json', | |
| 9120 | - 'Authorization: Bearer ' . $api_key | |
| 9121 | - )); | |
| 9122 | - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true); | |
| 9123 | - curl_setopt($ch, CURLOPT_TIMEOUT, 120); | |
| 9124 | - | |
| 9125 | - $full_response = ''; | |
| 9126 | - $stream_started = false; | |
| 9127 | - $buffer = ''; | |
| 9128 | - $citations = []; | |
| 9129 | - | |
| 9130 | - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, &$citations, $testing_data) { | |
| 9131 | - // Send testing data as first event if available | |
| 9132 | - if (!$stream_started && $testing_data !== null) { | |
| 9133 | - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n"; | |
| 9134 | - flush(); | |
| 9135 | - $stream_started = true; | |
| 9136 | - } | |
| 9137 | - | |
| 9138 | - $buffer .= $data; | |
| 9139 | - $lines = explode("\n", $buffer); | |
| 9140 | - $buffer = array_pop($lines); | |
| 9141 | - | |
| 9142 | - foreach ($lines as $line) { | |
| 9143 | - if (trim($line) === '') continue; | |
| 9144 | - if (strpos($line, 'data: ') !== 0) continue; | |
| 9145 | - | |
| 9146 | - $json_str = substr($line, 6); | |
| 9147 | - | |
| 9148 | - if (trim($json_str) === '[DONE]') { | |
| 9149 | - // Append citations if we have any | |
| 9150 | - if (!empty($citations)) { | |
| 9151 | - $citation_text = "\n\n**Sources:**\n"; | |
| 9152 | - $seen_urls = []; | |
| 9153 | - foreach ($citations as $citation) { | |
| 9154 | - if (!in_array($citation['url'], $seen_urls)) { | |
| 9155 | - $seen_urls[] = $citation['url']; | |
| 9156 | - $title = !empty($citation['title']) ? $citation['title'] : $citation['url']; | |
| 9157 | - $citation_text .= "- [" . $title . "](" . $citation['url'] . ")\n"; | |
| 9158 | - } | |
| 9159 | - } | |
| 9160 | - echo "data: " . json_encode(['content' => $citation_text]) . "\n\n"; | |
| 9161 | - $full_response .= $citation_text; | |
| 9162 | - flush(); | |
| 9163 | - } | |
| 9164 | - echo "data: [DONE]\n\n"; | |
| 9165 | - flush(); | |
| 9166 | - continue; | |
| 9167 | - } | |
| 9168 | - | |
| 9169 | - $json = json_decode(trim($json_str), true); | |
| 9170 | - if (!$json) continue; | |
| 9171 | - | |
| 9172 | - // Handle Responses API streaming events | |
| 9173 | - // The format is different from Chat Completions | |
| 9174 | - if (isset($json['type'])) { | |
| 9175 | - switch ($json['type']) { | |
| 9176 | - case 'response.output_text.delta': | |
| 9177 | - // Text content delta | |
| 9178 | - if (isset($json['delta'])) { | |
| 9179 | - $content = $json['delta']; | |
| 9180 | - $full_response .= $content; | |
| 9181 | - echo "data: " . json_encode(['content' => $content]) . "\n\n"; | |
| 9182 | - flush(); | |
| 9183 | - } | |
| 9184 | - break; | |
| 9185 | - | |
| 9186 | - case 'response.output_item.done': | |
| 9187 | - // Check for citations in completed items | |
| 9188 | - if (isset($json['item']['content'])) { | |
| 9189 | - foreach ($json['item']['content'] as $content_item) { | |
| 9190 | - if (isset($content_item['annotations'])) { | |
| 9191 | - foreach ($content_item['annotations'] as $annotation) { | |
| 9192 | - if ($annotation['type'] === 'url_citation') { | |
| 9193 | - $citations[] = [ | |
| 9194 | - 'url' => $annotation['url'], | |
| 9195 | - 'title' => $annotation['title'] ?? '' | |
| 9196 | - ]; | |
| 9197 | - } | |
| 9198 | - } | |
| 9199 | - } | |
| 9200 | - } | |
| 9201 | - } | |
| 9202 | - break; | |
| 9203 | - } | |
| 9204 | - } | |
| 9205 | - } | |
| 9206 | - | |
| 9207 | - return strlen($data); | |
| 9208 | - }); | |
| 9209 | - | |
| 9210 | - $response = curl_exec($ch); | |
| 9211 | - $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); | |
| 9212 | - | |
| 9213 | - if (curl_errno($ch) || $http_code !== 200) { | |
| 9214 | - $curl_error = curl_error($ch); | |
| 9215 | - curl_close($ch); | |
| 9216 | - | |
| 9217 | - //error_log("MXCHAT WEB SEARCH STREAM ERROR: HTTP $http_code, cURL error: $curl_error"); | |
| 9218 | - | |
| 9219 | - return $this->mxchat_stream_emit_fallback( | |
| 9220 | - 'web_search', | |
| 9221 | - $this->mxchat_web_search_non_streaming_response($request_body, $api_key, $session_id, $testing_data), | |
| 9222 | - $session_id, | |
| 9223 | - $testing_data | |
| 9224 | - ); | |
| 9225 | - } | |
| 9226 | - | |
| 9227 | - curl_close($ch); | |
| 9228 | - | |
| 9229 | - // Save the complete response with RAG context so the "sources" link | |
| 9230 | - // appears in transcripts — mirrors the pattern used by Claude/OpenAI streaming. | |
| 9231 | - if (!empty($full_response) && !empty($session_id)) { | |
| 9232 | - $rag_context_for_storage = null; | |
| 9233 | - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']); | |
| 9234 | - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis); | |
| 9235 | - | |
| 9236 | - if ($has_rag_data || $has_action_data) { | |
| 9237 | - $rag_context_for_storage = []; | |
| 9238 | - | |
| 9239 | - if ($has_rag_data) { | |
| 9240 | - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches']; | |
| 9241 | - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? []; | |
| 9242 | - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35; | |
| 9243 | - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database'; | |
| 9244 | - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0; | |
| 9245 | - } | |
| 9246 | - | |
| 9247 | - if ($has_action_data) { | |
| 9248 | - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis; | |
| 9249 | - } | |
| 9250 | - } | |
| 9251 | - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage); | |
| 9252 | - } | |
| 9253 | - | |
| 9254 | - return true; | |
| 9255 | -} | |
| 9256 | - | |
| 9257 | -private function mxchat_generate_response_claude_stream($selected_model, $claude_api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) { | |
| 9258 | - // Anthropic retired claude-opus-4-20250514 / claude-sonnet-4-20250514 on 2026-06-15. | |
| 9259 | - // Read-time rescue: remap a saved dead ID to the current equivalent before the API call. | |
| 9260 | - if ($selected_model === 'claude-opus-4-20250514') { $selected_model = 'claude-opus-4-8'; } | |
| 9261 | - elseif ($selected_model === 'claude-sonnet-4-20250514') { $selected_model = 'claude-sonnet-4-6'; } | |
| 9262 | - try { | |
| 9263 | - // Get bot ID from session or request | |
| 9264 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 9265 | - | |
| 9266 | - // Get system prompt instructions using centralized function | |
| 9267 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 9268 | - // Ensure conversation_history is an array | |
| 9269 | - if (!is_array($conversation_history)) { | |
| 9270 | - $conversation_history = array(); | |
| 9271 | - } | |
| 9272 | - | |
| 9273 | - // Clean and validate conversation history | |
| 9274 | - foreach ($conversation_history as &$message) { | |
| 9275 | - // Convert bot and agent roles to assistant | |
| 9276 | - if ($message['role'] === 'bot' || $message['role'] === 'agent') { | |
| 9277 | - $message['role'] = 'assistant'; | |
| 9278 | - } | |
| 9279 | - | |
| 9280 | - // Remove unsupported roles - Claude only supports 'assistant' and 'user' | |
| 9281 | - if (!in_array($message['role'], ['assistant', 'user'])) { | |
| 9282 | - $message['role'] = 'user'; | |
| 9283 | - } | |
| 9284 | - | |
| 9285 | - // Ensure content field exists | |
| 9286 | - if (!isset($message['content']) || empty($message['content'])) { | |
| 9287 | - $message['content'] = ''; | |
| 9288 | - } | |
| 9289 | - | |
| 9290 | - // Remove any unsupported fields | |
| 9291 | - $message = array_intersect_key($message, array_flip(['role', 'content'])); | |
| 9292 | - } | |
| 9293 | - | |
| 9294 | - // Add relevant content as the latest user message | |
| 9295 | - $conversation_history[] = [ | |
| 9296 | - 'role' => 'user', | |
| 9297 | - 'content' => $relevant_content | |
| 9298 | - ]; | |
| 9299 | - | |
| 9300 | - // Prepare the request body with stream: true | |
| 9301 | - $payload = [ | |
| 9302 | - 'model' => $selected_model, | |
| 9303 | - 'messages' => $conversation_history, | |
| 9304 | - 'max_tokens' => 1000, | |
| 9305 | - 'temperature' => 0.8, | |
| 9306 | - 'system' => $system_prompt_instructions, | |
| 9307 | - 'stream' => true | |
| 9308 | - ]; | |
| 9309 | - if ($this->mxchat_claude_omits_temperature($selected_model)) { unset($payload['temperature']); } | |
| 9310 | - $body = json_encode($payload); | |
| 9311 | - | |
| 9312 | - // Check if we can actually stream (headers not sent, etc.) | |
| 9313 | - if (headers_sent() || !function_exists('curl_init')) { | |
| 9314 | - // Fallback to regular response with testing data | |
| 9315 | - //error_log("MxChat: Streaming not possible, falling back to regular response"); | |
| 9316 | - $regular_response = $this->mxchat_generate_response_claude( | |
| 9317 | - $selected_model, | |
| 9318 | - $claude_api_key, | |
| 9319 | - array_slice($conversation_history, 0, -1), // Remove the added content | |
| 9320 | - $relevant_content, | |
| 9321 | - $session_id | |
| 9322 | - ); | |
| 9323 | - | |
| 9324 | - // Save bot response to transcript | |
| 9325 | - if (!empty($regular_response) && !empty($session_id)) { | |
| 9326 | - $this->mxchat_save_chat_message($session_id, 'bot', $regular_response); | |
| 9327 | - } | |
| 9328 | - | |
| 9329 | - // Return as JSON with testing data | |
| 9330 | - $response_data = [ | |
| 9331 | - 'text' => $regular_response, | |
| 9332 | - 'html' => '', | |
| 9333 | - 'session_id' => $session_id | |
| 9334 | - ]; | |
| 9335 | - | |
| 9336 | - if ($testing_data !== null) { | |
| 9337 | - $response_data['testing_data'] = $testing_data; | |
| 9338 | - //error_log("MxChat Testing: Added testing data to Claude fallback response"); | |
| 9339 | - } | |
| 9340 | - | |
| 9341 | - // Clear any streaming headers and send JSON | |
| 9342 | - if (headers_sent() === false) { | |
| 9343 | - header('Content-Type: application/json'); | |
| 9344 | - } | |
| 9345 | - echo json_encode($response_data); | |
| 9346 | - return true; // Indicate we handled the response | |
| 9347 | - } | |
| 9348 | - | |
| 9349 | - // V2 retry-on-initial-connect: setup_streaming_headers is lazy-fired in WRITEFUNCTION. | |
| 9350 | - | |
| 9351 | - $captured_status_code = 0; | |
| 9352 | - $captured_body_pre_stream = ''; | |
| 9353 | - $full_response = ''; | |
| 9354 | - $stream_started = false; | |
| 9355 | - $buffer = ''; | |
| 9356 | - $errno = 0; | |
| 9357 | - $http_code = 0; | |
| 9358 | - $max_attempts = $this->mxchat_retry_enabled() ? 3 : 1; | |
| 9359 | - $backoff_ms = array(0, 750, 2000); | |
| 9360 | - | |
| 9361 | - for ($attempt = 0; $attempt < $max_attempts; $attempt++) { | |
| 9362 | - if ($attempt > 0 && $backoff_ms[$attempt] > 0) { | |
| 9363 | - usleep($backoff_ms[$attempt] * 1000); | |
| 9364 | - } | |
| 9365 | - | |
| 9366 | - $captured_status_code = 0; | |
| 9367 | - $captured_body_pre_stream = ''; | |
| 9368 | - $full_response = ''; | |
| 9369 | - $stream_started = false; | |
| 9370 | - $buffer = ''; | |
| 9371 | - | |
| 9372 | - $ch = curl_init(); | |
| 9373 | - curl_setopt($ch, CURLOPT_URL, 'https://api.anthropic.com/v1/messages'); | |
| 9374 | - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false); | |
| 9375 | - curl_setopt($ch, CURLOPT_POST, true); | |
| 9376 | - curl_setopt($ch, CURLOPT_POSTFIELDS, $body); | |
| 9377 | - curl_setopt($ch, CURLOPT_HTTPHEADER, array( | |
| 9378 | - 'Content-Type: application/json', | |
| 9379 | - 'x-api-key: ' . $claude_api_key, | |
| 9380 | - 'anthropic-version: 2023-06-01' | |
| 9381 | - )); | |
| 9382 | - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true); | |
| 9383 | - curl_setopt($ch, CURLOPT_TIMEOUT, 60); | |
| 9384 | - | |
| 9385 | - curl_setopt($ch, CURLOPT_HEADERFUNCTION, function($ch, $header) use (&$captured_status_code) { | |
| 9386 | - if ($captured_status_code === 0 && preg_match('#^HTTP/\S+\s+(\d+)\b#', $header, $m)) { | |
| 9387 | - $captured_status_code = (int) $m[1]; | |
| 9388 | - } | |
| 9389 | - return strlen($header); | |
| 9390 | - }); | |
| 9391 | - | |
| 9392 | - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, &$captured_status_code, &$captured_body_pre_stream, $testing_data) { | |
| 9393 | - if ($captured_status_code !== 0 && $captured_status_code !== 200) { | |
| 9394 | - $captured_body_pre_stream .= $data; | |
| 9395 | - return strlen($data); | |
| 9396 | - } | |
| 9397 | - | |
| 9398 | - if (!$this->streaming_headers_sent) { | |
| 9399 | - $this->setup_streaming_headers(); | |
| 9400 | - } | |
| 9401 | - | |
| 9402 | - if (!$stream_started && $testing_data !== null) { | |
| 9403 | - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n"; | |
| 9404 | - flush(); | |
| 9405 | - $stream_started = true; | |
| 9406 | - } | |
| 9407 | - | |
| 9408 | - $buffer .= $data; | |
| 9409 | - $lines = explode("\n", $buffer); | |
| 9410 | - $buffer = array_pop($lines); | |
| 9411 | - | |
| 9412 | - foreach ($lines as $line) { | |
| 9413 | - if (trim($line) === '') { | |
| 9414 | - continue; | |
| 9415 | - } | |
| 9416 | - | |
| 9417 | - if (strpos($line, 'event: ') === 0) { | |
| 9418 | - continue; | |
| 9419 | - } | |
| 9420 | - | |
| 9421 | - if (strpos($line, 'data: ') === 0) { | |
| 9422 | - $json_str = substr($line, 6); | |
| 9423 | - | |
| 9424 | - $json = json_decode(trim($json_str), true); | |
| 9425 | - if (json_last_error() !== JSON_ERROR_NONE) { | |
| 9426 | - continue; | |
| 9427 | - } | |
| 9428 | - | |
| 9429 | - if (isset($json['type'])) { | |
| 9430 | - switch ($json['type']) { | |
| 9431 | - case 'content_block_delta': | |
| 9432 | - if (isset($json['delta']['text'])) { | |
| 9433 | - $content = $json['delta']['text']; | |
| 9434 | - $full_response .= $content; | |
| 9435 | - echo "data: " . json_encode(['content' => $content]) . "\n\n"; | |
| 9436 | - flush(); | |
| 9437 | - } | |
| 9438 | - break; | |
| 9439 | - | |
| 9440 | - case 'message_stop': | |
| 9441 | - echo "data: [DONE]\n\n"; | |
| 9442 | - flush(); | |
| 9443 | - break; | |
| 9444 | - | |
| 9445 | - case 'error': | |
| 9446 | - echo "data: " . json_encode(['error' => $json['error']['message'] ?? 'Unknown error']) . "\n\n"; | |
| 9447 | - flush(); | |
| 9448 | - break; | |
| 9449 | - } | |
| 9450 | - } | |
| 9451 | - } | |
| 9452 | - } | |
| 9453 | - | |
| 9454 | - return strlen($data); | |
| 9455 | - }); | |
| 9456 | - | |
| 9457 | - $response = curl_exec($ch); | |
| 9458 | - $errno = curl_errno($ch); | |
| 9459 | - $http_code = $captured_status_code !== 0 ? $captured_status_code : (int) curl_getinfo($ch, CURLINFO_HTTP_CODE); | |
| 9460 | - curl_close($ch); | |
| 9461 | - | |
| 9462 | - if (!$errno && $http_code === 200) { | |
| 9463 | - break; | |
| 9464 | - } | |
| 9465 | - | |
| 9466 | - $is_transient = $this->mxchat_is_transient_provider_error_raw($http_code, $captured_body_pre_stream, 'anthropic', $errno); | |
| 9467 | - $can_retry = !$this->streaming_headers_sent | |
| 9468 | - && ($attempt + 1) < $max_attempts | |
| 9469 | - && $is_transient; | |
| 9470 | - | |
| 9471 | - if (defined('WP_DEBUG') && WP_DEBUG) { | |
| 9472 | - error_log(sprintf( | |
| 9473 | - '[MxChat] claude_stream initial-connect failure (attempt=%d/%d, status=%d, errno=%d, transient=%s, %s).', | |
| 9474 | - $attempt + 1, $max_attempts, $http_code, $errno, | |
| 9475 | - $is_transient ? 'yes' : 'no', | |
| 9476 | - $can_retry ? 'Retrying.' : 'Giving up.' | |
| 9477 | - )); | |
| 9478 | - } | |
| 9479 | - | |
| 9480 | - if (!$can_retry) { | |
| 9481 | - break; | |
| 9482 | - } | |
| 9483 | - } | |
| 9484 | - | |
| 9485 | - if ($errno || $http_code !== 200) { | |
| 9486 | - return $this->mxchat_stream_emit_fallback( | |
| 9487 | - 'anthropic', | |
| 9488 | - $this->mxchat_generate_response_claude($selected_model, $claude_api_key, array_slice($conversation_history, 0, -1), $relevant_content, $session_id), | |
| 9489 | - $session_id, | |
| 9490 | - $testing_data | |
| 9491 | - ); | |
| 9492 | - } | |
| 9493 | - | |
| 9494 | - // Save the complete response to maintain chat persistence | |
| 9495 | - if (!empty($full_response) && !empty($session_id)) { | |
| 9496 | - // Prepare RAG context for streaming response | |
| 9497 | - $rag_context_for_storage = null; | |
| 9498 | - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']); | |
| 9499 | - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis); | |
| 9500 | - | |
| 9501 | - if ($has_rag_data || $has_action_data) { | |
| 9502 | - $rag_context_for_storage = []; | |
| 9503 | - | |
| 9504 | - if ($has_rag_data) { | |
| 9505 | - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches']; | |
| 9506 | - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? []; | |
| 9507 | - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35; | |
| 9508 | - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database'; | |
| 9509 | - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0; | |
| 9510 | - } | |
| 9511 | - | |
| 9512 | - if ($has_action_data) { | |
| 9513 | - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis; | |
| 9514 | - } | |
| 9515 | - } | |
| 9516 | - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage); | |
| 9517 | - } | |
| 9518 | - | |
| 9519 | - return true; // Indicate streaming completed successfully | |
| 9520 | - | |
| 9521 | - } catch (Exception $e) { | |
| 9522 | - return $this->mxchat_stream_emit_fallback( | |
| 9523 | - 'anthropic', | |
| 9524 | - $this->mxchat_generate_response_claude($selected_model, $claude_api_key, $conversation_history, $relevant_content, $session_id), | |
| 9525 | - $session_id, | |
| 9526 | - $testing_data | |
| 9527 | - ); | |
| 9528 | - } | |
| 9529 | -} | |
| 9530 | -private function mxchat_generate_response_xai_stream($selected_model, $xai_api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) { | |
| 9531 | - try { | |
| 9532 | - // Get bot ID from session or request | |
| 9533 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 9534 | - | |
| 9535 | - // Get system prompt instructions using centralized function | |
| 9536 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 9537 | - | |
| 9538 | - // Ensure conversation_history is an array | |
| 9539 | - if (!is_array($conversation_history)) { | |
| 9540 | - $conversation_history = array(); | |
| 9541 | - } | |
| 9542 | - | |
| 9543 | - // Format conversation history for X.AI (same as OpenAI format) | |
| 9544 | - $formatted_conversation = array(); | |
| 9545 | - | |
| 9546 | - $formatted_conversation[] = array( | |
| 9547 | - 'role' => 'system', | |
| 9548 | - 'content' => $system_prompt_instructions . " " . $relevant_content | |
| 9549 | - ); | |
| 9550 | - | |
| 9551 | - foreach ($conversation_history as $message) { | |
| 9552 | - if (is_array($message) && isset($message['role']) && isset($message['content'])) { | |
| 9553 | - $role = $message['role']; | |
| 9554 | - if ($role === 'bot' || $role === 'agent') { | |
| 9555 | - $role = 'assistant'; | |
| 9556 | - } | |
| 9557 | - if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) { | |
| 9558 | - $role = 'user'; | |
| 9559 | - } | |
| 9560 | - $formatted_conversation[] = array( | |
| 9561 | - 'role' => $role, | |
| 9562 | - 'content' => $message['content'] | |
| 9563 | - ); | |
| 9564 | - } | |
| 9565 | - } | |
| 9566 | - | |
| 9567 | - // Check if we can actually stream | |
| 9568 | - if (headers_sent() || !function_exists('curl_init')) { | |
| 9569 | - // Fallback to regular response with testing data | |
| 9570 | - //error_log("MxChat: X.AI streaming not possible, falling back to regular response"); | |
| 9571 | - $regular_response = $this->mxchat_generate_response_xai( | |
| 9572 | - $selected_model, | |
| 9573 | - $xai_api_key, | |
| 9574 | - $conversation_history, | |
| 9575 | - $relevant_content, | |
| 9576 | - $session_id | |
| 9577 | - ); | |
| 9578 | - | |
| 9579 | - // Save bot response to transcript | |
| 9580 | - if (!empty($regular_response) && !empty($session_id)) { | |
| 9581 | - $this->mxchat_save_chat_message($session_id, 'bot', $regular_response); | |
| 9582 | - } | |
| 9583 | - | |
| 9584 | - $response_data = [ | |
| 9585 | - 'text' => $regular_response, | |
| 9586 | - 'html' => '', | |
| 9587 | - 'session_id' => $session_id | |
| 9588 | - ]; | |
| 9589 | - | |
| 9590 | - if ($testing_data !== null) { | |
| 9591 | - $response_data['testing_data'] = $testing_data; | |
| 9592 | - //error_log("MxChat Testing: Added testing data to X.AI fallback response"); | |
| 9593 | - } | |
| 9594 | - | |
| 9595 | - header('Content-Type: application/json'); | |
| 9596 | - echo json_encode($response_data); | |
| 9597 | - return true; | |
| 9598 | - } | |
| 9599 | - | |
| 9600 | - // Prepare the request body with stream: true | |
| 9601 | - $body = json_encode([ | |
| 9602 | - 'model' => $selected_model, | |
| 9603 | - 'messages' => $formatted_conversation, | |
| 9604 | - 'temperature' => 0.8, | |
| 9605 | - 'stream' => true | |
| 9606 | - ]); | |
| 9607 | - | |
| 9608 | - // V2 retry-on-initial-connect: setup_streaming_headers is lazy-fired in WRITEFUNCTION. | |
| 9609 | - | |
| 9610 | - $captured_status_code = 0; | |
| 9611 | - $captured_body_pre_stream = ''; | |
| 9612 | - $full_response = ''; | |
| 9613 | - $stream_started = false; | |
| 9614 | - $buffer = ''; | |
| 9615 | - $errno = 0; | |
| 9616 | - $http_code = 0; | |
| 9617 | - $max_attempts = $this->mxchat_retry_enabled() ? 3 : 1; | |
| 9618 | - $backoff_ms = array(0, 750, 2000); | |
| 9619 | - | |
| 9620 | - for ($attempt = 0; $attempt < $max_attempts; $attempt++) { | |
| 9621 | - if ($attempt > 0 && $backoff_ms[$attempt] > 0) { | |
| 9622 | - usleep($backoff_ms[$attempt] * 1000); | |
| 9623 | - } | |
| 9624 | - | |
| 9625 | - $captured_status_code = 0; | |
| 9626 | - $captured_body_pre_stream = ''; | |
| 9627 | - $full_response = ''; | |
| 9628 | - $stream_started = false; | |
| 9629 | - $buffer = ''; | |
| 9630 | - | |
| 9631 | - $ch = curl_init(); | |
| 9632 | - curl_setopt($ch, CURLOPT_URL, 'https://api.x.ai/v1/chat/completions'); | |
| 9633 | - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false); | |
| 9634 | - curl_setopt($ch, CURLOPT_POST, true); | |
| 9635 | - curl_setopt($ch, CURLOPT_POSTFIELDS, $body); | |
| 9636 | - curl_setopt($ch, CURLOPT_HTTPHEADER, array( | |
| 9637 | - 'Content-Type: application/json', | |
| 9638 | - 'Authorization: Bearer ' . $xai_api_key | |
| 9639 | - )); | |
| 9640 | - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true); | |
| 9641 | - curl_setopt($ch, CURLOPT_TIMEOUT, 60); | |
| 9642 | - | |
| 9643 | - curl_setopt($ch, CURLOPT_HEADERFUNCTION, function($ch, $header) use (&$captured_status_code) { | |
| 9644 | - if ($captured_status_code === 0 && preg_match('#^HTTP/\S+\s+(\d+)\b#', $header, $m)) { | |
| 9645 | - $captured_status_code = (int) $m[1]; | |
| 9646 | - } | |
| 9647 | - return strlen($header); | |
| 9648 | - }); | |
| 9649 | - | |
| 9650 | - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, &$captured_status_code, &$captured_body_pre_stream, $testing_data) { | |
| 9651 | - if ($captured_status_code !== 0 && $captured_status_code !== 200) { | |
| 9652 | - $captured_body_pre_stream .= $data; | |
| 9653 | - return strlen($data); | |
| 9654 | - } | |
| 9655 | - | |
| 9656 | - if (!$this->streaming_headers_sent) { | |
| 9657 | - $this->setup_streaming_headers(); | |
| 9658 | - } | |
| 9659 | - | |
| 9660 | - if (!$stream_started && $testing_data !== null) { | |
| 9661 | - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n"; | |
| 9662 | - flush(); | |
| 9663 | - $stream_started = true; | |
| 9664 | - } | |
| 9665 | - | |
| 9666 | - $buffer .= $data; | |
| 9667 | - $lines = explode("\n", $buffer); | |
| 9668 | - $buffer = array_pop($lines); | |
| 9669 | - | |
| 9670 | - foreach ($lines as $line) { | |
| 9671 | - if (trim($line) === '') { | |
| 9672 | - continue; | |
| 9673 | - } | |
| 9674 | - if (strpos($line, 'data: ') !== 0) { | |
| 9675 | - continue; | |
| 9676 | - } | |
| 9677 | - | |
| 9678 | - $json_str = substr($line, 6); | |
| 9679 | - | |
| 9680 | - if (trim($json_str) === '[DONE]') { | |
| 9681 | - echo "data: [DONE]\n\n"; | |
| 9682 | - flush(); | |
| 9683 | - continue; | |
| 9684 | - } | |
| 9685 | - | |
| 9686 | - $json = json_decode(trim($json_str), true); | |
| 9687 | - if ($json && isset($json['choices'][0]['delta']['content'])) { | |
| 9688 | - $content = $json['choices'][0]['delta']['content']; | |
| 9689 | - $full_response .= $content; | |
| 9690 | - echo "data: " . json_encode(['content' => $content]) . "\n\n"; | |
| 9691 | - flush(); | |
| 9692 | - } | |
| 9693 | - } | |
| 9694 | - | |
| 9695 | - return strlen($data); | |
| 9696 | - }); | |
| 9697 | - | |
| 9698 | - $response = curl_exec($ch); | |
| 9699 | - $errno = curl_errno($ch); | |
| 9700 | - $http_code = $captured_status_code !== 0 ? $captured_status_code : (int) curl_getinfo($ch, CURLINFO_HTTP_CODE); | |
| 9701 | - curl_close($ch); | |
| 9702 | - | |
| 9703 | - if (!$errno && $http_code === 200) { | |
| 9704 | - break; | |
| 9705 | - } | |
| 9706 | - | |
| 9707 | - $is_transient = $this->mxchat_is_transient_provider_error_raw($http_code, $captured_body_pre_stream, 'xai', $errno); | |
| 9708 | - $can_retry = !$this->streaming_headers_sent | |
| 9709 | - && ($attempt + 1) < $max_attempts | |
| 9710 | - && $is_transient; | |
| 9711 | - | |
| 9712 | - if (defined('WP_DEBUG') && WP_DEBUG) { | |
| 9713 | - error_log(sprintf( | |
| 9714 | - '[MxChat] xai_stream initial-connect failure (attempt=%d/%d, status=%d, errno=%d, transient=%s, %s).', | |
| 9715 | - $attempt + 1, $max_attempts, $http_code, $errno, | |
| 9716 | - $is_transient ? 'yes' : 'no', | |
| 9717 | - $can_retry ? 'Retrying.' : 'Giving up.' | |
| 9718 | - )); | |
| 9719 | - } | |
| 9720 | - | |
| 9721 | - if (!$can_retry) { | |
| 9722 | - break; | |
| 9723 | - } | |
| 9724 | - } | |
| 9725 | - | |
| 9726 | - if ($errno || $http_code !== 200) { | |
| 9727 | - return $this->mxchat_stream_emit_fallback( | |
| 9728 | - 'xai', | |
| 9729 | - $this->mxchat_generate_response_xai($selected_model, $xai_api_key, $conversation_history, $relevant_content, $session_id), | |
| 9730 | - $session_id, | |
| 9731 | - $testing_data | |
| 9732 | - ); | |
| 9733 | - } | |
| 9734 | - | |
| 9735 | - // Save the complete response to maintain chat persistence | |
| 9736 | - if (!empty($full_response) && !empty($session_id)) { | |
| 9737 | - // Prepare RAG context for streaming response | |
| 9738 | - $rag_context_for_storage = null; | |
| 9739 | - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']); | |
| 9740 | - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis); | |
| 9741 | - | |
| 9742 | - if ($has_rag_data || $has_action_data) { | |
| 9743 | - $rag_context_for_storage = []; | |
| 9744 | - | |
| 9745 | - if ($has_rag_data) { | |
| 9746 | - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches']; | |
| 9747 | - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? []; | |
| 9748 | - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35; | |
| 9749 | - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database'; | |
| 9750 | - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0; | |
| 9751 | - } | |
| 9752 | - | |
| 9753 | - if ($has_action_data) { | |
| 9754 | - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis; | |
| 9755 | - } | |
| 9756 | - } | |
| 9757 | - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage); | |
| 9758 | - } | |
| 9759 | - | |
| 9760 | - return true; // Indicate streaming completed successfully | |
| 9761 | - | |
| 9762 | - } catch (Exception $e) { | |
| 9763 | - return $this->mxchat_stream_emit_fallback( | |
| 9764 | - 'xai', | |
| 9765 | - $this->mxchat_generate_response_xai($selected_model, $xai_api_key, $conversation_history, $relevant_content), | |
| 9766 | - $session_id, | |
| 9767 | - $testing_data | |
| 9768 | - ); | |
| 9769 | - } | |
| 9770 | -} | |
| 9771 | -private function mxchat_generate_response_deepseek_stream($selected_model, $deepseek_api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) { | |
| 9772 | - try { | |
| 9773 | - // Get bot ID from session or request | |
| 9774 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 9775 | - | |
| 9776 | - // Get system prompt instructions using centralized function | |
| 9777 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 9778 | - | |
| 9779 | - // Ensure conversation_history is an array | |
| 9780 | - if (!is_array($conversation_history)) { | |
| 9781 | - $conversation_history = array(); | |
| 9782 | - } | |
| 9783 | - | |
| 9784 | - // Format conversation history for DeepSeek | |
| 9785 | - $formatted_conversation = array(); | |
| 9786 | - | |
| 9787 | - $formatted_conversation[] = array( | |
| 9788 | - 'role' => 'system', | |
| 9789 | - 'content' => $system_prompt_instructions . " " . $relevant_content | |
| 9790 | - ); | |
| 9791 | - | |
| 9792 | - foreach ($conversation_history as $message) { | |
| 9793 | - if (is_array($message) && isset($message['role']) && isset($message['content'])) { | |
| 9794 | - $role = $message['role']; | |
| 9795 | - if ($role === 'bot' || $role === 'agent') { | |
| 9796 | - $role = 'assistant'; | |
| 9797 | - } | |
| 9798 | - if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) { | |
| 9799 | - $role = 'user'; | |
| 9800 | - } | |
| 9801 | - $formatted_conversation[] = array( | |
| 9802 | - 'role' => $role, | |
| 9803 | - 'content' => $message['content'] | |
| 9804 | - ); | |
| 9805 | - } | |
| 9806 | - } | |
| 9807 | - | |
| 9808 | - // Check if we can actually stream | |
| 9809 | - if (headers_sent() || !function_exists('curl_init')) { | |
| 9810 | - // Fallback to regular response with testing data | |
| 9811 | - //error_log("MxChat: DeepSeek streaming not possible, falling back to regular response"); | |
| 9812 | - $regular_response = $this->mxchat_generate_response_deepseek( | |
| 9813 | - $selected_model, | |
| 9814 | - $deepseek_api_key, | |
| 9815 | - $conversation_history, | |
| 9816 | - $relevant_content, | |
| 9817 | - $session_id | |
| 9818 | - ); | |
| 9819 | - | |
| 9820 | - // Save bot response to transcript | |
| 9821 | - if (!empty($regular_response) && !empty($session_id)) { | |
| 9822 | - $this->mxchat_save_chat_message($session_id, 'bot', $regular_response); | |
| 9823 | - } | |
| 9824 | - | |
| 9825 | - $response_data = [ | |
| 9826 | - 'text' => $regular_response, | |
| 9827 | - 'html' => '', | |
| 9828 | - 'session_id' => $session_id | |
| 9829 | - ]; | |
| 9830 | - | |
| 9831 | - if ($testing_data !== null) { | |
| 9832 | - $response_data['testing_data'] = $testing_data; | |
| 9833 | - //error_log("MxChat Testing: Added testing data to DeepSeek fallback response"); | |
| 9834 | - } | |
| 9835 | - | |
| 9836 | - header('Content-Type: application/json'); | |
| 9837 | - echo json_encode($response_data); | |
| 9838 | - return true; | |
| 9839 | - } | |
| 9840 | - | |
| 9841 | - // Prepare the request body with stream: true | |
| 9842 | - $body = json_encode([ | |
| 9843 | - 'model' => $selected_model, | |
| 9844 | - 'messages' => $formatted_conversation, | |
| 9845 | - 'temperature' => 0.8, | |
| 9846 | - 'stream' => true | |
| 9847 | - ]); | |
| 9848 | - | |
| 9849 | - // V2 retry-on-initial-connect: setup_streaming_headers is lazy-fired in WRITEFUNCTION. | |
| 9850 | - | |
| 9851 | - $captured_status_code = 0; | |
| 9852 | - $captured_body_pre_stream = ''; | |
| 9853 | - $full_response = ''; | |
| 9854 | - $stream_started = false; | |
| 9855 | - $buffer = ''; | |
| 9856 | - $errno = 0; | |
| 9857 | - $http_code = 0; | |
| 9858 | - $max_attempts = $this->mxchat_retry_enabled() ? 3 : 1; | |
| 9859 | - $backoff_ms = array(0, 750, 2000); | |
| 9860 | - | |
| 9861 | - for ($attempt = 0; $attempt < $max_attempts; $attempt++) { | |
| 9862 | - if ($attempt > 0 && $backoff_ms[$attempt] > 0) { | |
| 9863 | - usleep($backoff_ms[$attempt] * 1000); | |
| 9864 | - } | |
| 9865 | - | |
| 9866 | - $captured_status_code = 0; | |
| 9867 | - $captured_body_pre_stream = ''; | |
| 9868 | - $full_response = ''; | |
| 9869 | - $stream_started = false; | |
| 9870 | - $buffer = ''; | |
| 9871 | - | |
| 9872 | - $ch = curl_init(); | |
| 9873 | - curl_setopt($ch, CURLOPT_URL, 'https://api.deepseek.com/v1/chat/completions'); | |
| 9874 | - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false); | |
| 9875 | - curl_setopt($ch, CURLOPT_POST, true); | |
| 9876 | - curl_setopt($ch, CURLOPT_POSTFIELDS, $body); | |
| 9877 | - curl_setopt($ch, CURLOPT_HTTPHEADER, array( | |
| 9878 | - 'Content-Type: application/json', | |
| 9879 | - 'Authorization: Bearer ' . $deepseek_api_key | |
| 9880 | - )); | |
| 9881 | - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true); | |
| 9882 | - curl_setopt($ch, CURLOPT_TIMEOUT, 60); | |
| 9883 | - | |
| 9884 | - curl_setopt($ch, CURLOPT_HEADERFUNCTION, function($ch, $header) use (&$captured_status_code) { | |
| 9885 | - if ($captured_status_code === 0 && preg_match('#^HTTP/\S+\s+(\d+)\b#', $header, $m)) { | |
| 9886 | - $captured_status_code = (int) $m[1]; | |
| 9887 | - } | |
| 9888 | - return strlen($header); | |
| 9889 | - }); | |
| 9890 | - | |
| 9891 | - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, &$captured_status_code, &$captured_body_pre_stream, $testing_data) { | |
| 9892 | - if ($captured_status_code !== 0 && $captured_status_code !== 200) { | |
| 9893 | - $captured_body_pre_stream .= $data; | |
| 9894 | - return strlen($data); | |
| 9895 | - } | |
| 9896 | - | |
| 9897 | - if (!$this->streaming_headers_sent) { | |
| 9898 | - $this->setup_streaming_headers(); | |
| 9899 | - } | |
| 9900 | - | |
| 9901 | - if (!$stream_started && $testing_data !== null) { | |
| 9902 | - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n"; | |
| 9903 | - flush(); | |
| 9904 | - $stream_started = true; | |
| 9905 | - } | |
| 9906 | - | |
| 9907 | - $buffer .= $data; | |
| 9908 | - $lines = explode("\n", $buffer); | |
| 9909 | - $buffer = array_pop($lines); | |
| 9910 | - | |
| 9911 | - foreach ($lines as $line) { | |
| 9912 | - if (trim($line) === '') { | |
| 9913 | - continue; | |
| 9914 | - } | |
| 9915 | - if (strpos($line, 'data: ') !== 0) { | |
| 9916 | - continue; | |
| 9917 | - } | |
| 9918 | - | |
| 9919 | - $json_str = substr($line, 6); | |
| 9920 | - | |
| 9921 | - if (trim($json_str) === '[DONE]') { | |
| 9922 | - echo "data: [DONE]\n\n"; | |
| 9923 | - flush(); | |
| 9924 | - continue; | |
| 9925 | - } | |
| 9926 | - | |
| 9927 | - $json = json_decode(trim($json_str), true); | |
| 9928 | - if ($json && isset($json['choices'][0]['delta']['content'])) { | |
| 9929 | - $content = $json['choices'][0]['delta']['content']; | |
| 9930 | - $full_response .= $content; | |
| 9931 | - echo "data: " . json_encode(['content' => $content]) . "\n\n"; | |
| 9932 | - flush(); | |
| 9933 | - } | |
| 9934 | - } | |
| 9935 | - | |
| 9936 | - return strlen($data); | |
| 9937 | - }); | |
| 9938 | - | |
| 9939 | - $response = curl_exec($ch); | |
| 9940 | - $errno = curl_errno($ch); | |
| 9941 | - $http_code = $captured_status_code !== 0 ? $captured_status_code : (int) curl_getinfo($ch, CURLINFO_HTTP_CODE); | |
| 9942 | - curl_close($ch); | |
| 9943 | - | |
| 9944 | - if (!$errno && $http_code === 200) { | |
| 9945 | - break; | |
| 9946 | - } | |
| 9947 | - | |
| 9948 | - $is_transient = $this->mxchat_is_transient_provider_error_raw($http_code, $captured_body_pre_stream, 'openai', $errno); | |
| 9949 | - $can_retry = !$this->streaming_headers_sent | |
| 9950 | - && ($attempt + 1) < $max_attempts | |
| 9951 | - && $is_transient; | |
| 9952 | - | |
| 9953 | - if (defined('WP_DEBUG') && WP_DEBUG) { | |
| 9954 | - error_log(sprintf( | |
| 9955 | - '[MxChat] deepseek_stream initial-connect failure (attempt=%d/%d, status=%d, errno=%d, transient=%s, %s).', | |
| 9956 | - $attempt + 1, $max_attempts, $http_code, $errno, | |
| 9957 | - $is_transient ? 'yes' : 'no', | |
| 9958 | - $can_retry ? 'Retrying.' : 'Giving up.' | |
| 9959 | - )); | |
| 9960 | - } | |
| 9961 | - | |
| 9962 | - if (!$can_retry) { | |
| 9963 | - break; | |
| 9964 | - } | |
| 9965 | - } | |
| 9966 | - | |
| 9967 | - if ($errno || $http_code !== 200) { | |
| 9968 | - return $this->mxchat_stream_emit_fallback( | |
| 9969 | - 'openai', | |
| 9970 | - $this->mxchat_generate_response_deepseek($selected_model, $deepseek_api_key, $conversation_history, $relevant_content, $session_id), | |
| 9971 | - $session_id, | |
| 9972 | - $testing_data | |
| 9973 | - ); | |
| 9974 | - } | |
| 9975 | - | |
| 9976 | - // Save the complete response to maintain chat persistence | |
| 9977 | - if (!empty($full_response) && !empty($session_id)) { | |
| 9978 | - // Prepare RAG context for streaming response | |
| 9979 | - $rag_context_for_storage = null; | |
| 9980 | - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']); | |
| 9981 | - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis); | |
| 9982 | - | |
| 9983 | - if ($has_rag_data || $has_action_data) { | |
| 9984 | - $rag_context_for_storage = []; | |
| 9985 | - | |
| 9986 | - if ($has_rag_data) { | |
| 9987 | - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches']; | |
| 9988 | - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? []; | |
| 9989 | - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35; | |
| 9990 | - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database'; | |
| 9991 | - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0; | |
| 9992 | - } | |
| 9993 | - | |
| 9994 | - if ($has_action_data) { | |
| 9995 | - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis; | |
| 9996 | - } | |
| 9997 | - } | |
| 9998 | - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage); | |
| 9999 | - } | |
| 10000 | - | |
| 10001 | - return true; // Indicate streaming completed successfully | |
| 10002 | - | |
| 10003 | - } catch (Exception $e) { | |
| 10004 | - return $this->mxchat_stream_emit_fallback( | |
| 10005 | - 'openai', | |
| 10006 | - $this->mxchat_generate_response_deepseek($selected_model, $deepseek_api_key, $conversation_history, $relevant_content), | |
| 10007 | - $session_id, | |
| 10008 | - $testing_data | |
| 10009 | - ); | |
| 10010 | - } | |
| 10011 | -} | |
| 10012 | - | |
| 10013 | - | |
| 10014 | -private function mxchat_generate_response_openrouter($selected_model, $openrouter_api_key, $conversation_history, $relevant_content, $session_id = '') { | |
| 10015 | - try { | |
| 10016 | - if (!is_array($conversation_history)) { | |
| 10017 | - $conversation_history = array(); | |
| 10018 | - } | |
| 10019 | - | |
| 10020 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 10021 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 10022 | - | |
| 10023 | - $formatted_conversation = array(); | |
| 10024 | - | |
| 10025 | - $formatted_conversation[] = array( | |
| 10026 | - 'role' => 'system', | |
| 10027 | - 'content' => $system_prompt_instructions . " " . $relevant_content | |
| 10028 | - ); | |
| 10029 | - | |
| 10030 | - foreach ($conversation_history as $message) { | |
| 10031 | - if (is_array($message) && isset($message['role']) && isset($message['content'])) { | |
| 10032 | - $role = $message['role']; | |
| 10033 | - | |
| 10034 | - if ($role === 'bot' || $role === 'agent') { | |
| 10035 | - $role = 'assistant'; | |
| 10036 | - } | |
| 10037 | - if (!in_array($role, ['system', 'assistant', 'user'])) { | |
| 10038 | - $role = 'user'; | |
| 10039 | - } | |
| 10040 | - | |
| 10041 | - $formatted_conversation[] = array( | |
| 10042 | - 'role' => $role, | |
| 10043 | - 'content' => $message['content'] | |
| 10044 | - ); | |
| 10045 | - } | |
| 10046 | - } | |
| 10047 | - | |
| 10048 | - $body = json_encode([ | |
| 10049 | - 'model' => $selected_model, | |
| 10050 | - 'messages' => $formatted_conversation, | |
| 10051 | - 'temperature' => 1, | |
| 10052 | - ]); | |
| 10053 | - | |
| 10054 | - $args = [ | |
| 10055 | - 'body' => $body, | |
| 10056 | - 'headers' => [ | |
| 10057 | - 'Content-Type' => 'application/json', | |
| 10058 | - 'Authorization' => 'Bearer ' . $openrouter_api_key, | |
| 10059 | - 'HTTP-Referer' => home_url(), | |
| 10060 | - 'X-Title' => get_bloginfo('name'), | |
| 10061 | - ], | |
| 10062 | - 'timeout' => 60, | |
| 10063 | - 'redirection' => 5, | |
| 10064 | - 'blocking' => true, | |
| 10065 | - 'httpversion' => '1.0', | |
| 10066 | - 'sslverify' => true, | |
| 10067 | - ]; | |
| 10068 | - | |
| 10069 | - $response = $this->mxchat_provider_call_with_retry('https://openrouter.ai/api/v1/chat/completions', $args, 'openai'); | |
| 10070 | - | |
| 10071 | - if (is_wp_error($response)) { | |
| 10072 | - $error_message = $response->get_error_message(); | |
| 10073 | - return [ | |
| 10074 | - 'error' => $this->mxchat_friendly_chat_error(0, $error_message, 'OpenRouter'), | |
| 10075 | - 'error_code' => 'openrouter_connection_error', | |
| 10076 | - 'provider' => 'openrouter' | |
| 10077 | - ]; | |
| 10078 | - } | |
| 10079 | - | |
| 10080 | - $status_code = wp_remote_retrieve_response_code($response); | |
| 10081 | - if ($status_code !== 200) { | |
| 10082 | - $response_body = wp_remote_retrieve_body($response); | |
| 10083 | - $decoded_response = json_decode($response_body, true); | |
| 10084 | - | |
| 10085 | - $error_message = isset($decoded_response['error']['message']) | |
| 10086 | - ? $decoded_response['error']['message'] | |
| 10087 | - : 'HTTP Error ' . $status_code; | |
| 10088 | - | |
| 10089 | - return [ | |
| 10090 | - 'error' => esc_html__('OpenRouter API error: ', 'mxchat') . esc_html($error_message), | |
| 10091 | - 'error_code' => 'openrouter_api_error', | |
| 10092 | - 'provider' => 'openrouter', | |
| 10093 | - 'status_code' => $status_code | |
| 10094 | - ]; | |
| 10095 | - } | |
| 10096 | - | |
| 10097 | - $response_body = wp_remote_retrieve_body($response); | |
| 10098 | - $decoded_response = json_decode($response_body, true); | |
| 10099 | - | |
| 10100 | - if (isset($decoded_response['choices'][0]['message']['content'])) { | |
| 10101 | - return trim($decoded_response['choices'][0]['message']['content']); | |
| 10102 | - } else { | |
| 10103 | - return [ | |
| 10104 | - 'error' => esc_html__('Unexpected response format from OpenRouter.', 'mxchat'), | |
| 10105 | - 'error_code' => 'openrouter_response_format_error', | |
| 10106 | - 'provider' => 'openrouter' | |
| 10107 | - ]; | |
| 10108 | - } | |
| 10109 | - } catch (Exception $e) { | |
| 10110 | - return [ | |
| 10111 | - 'error' => esc_html__('System error when processing OpenRouter request: ', 'mxchat') . esc_html($e->getMessage()), | |
| 10112 | - 'error_code' => 'openrouter_exception', | |
| 10113 | - 'provider' => 'openrouter' | |
| 10114 | - ]; | |
| 10115 | - } | |
| 10116 | -} | |
| 10117 | - | |
| 10118 | -/** | |
| 10119 | - * Build a chat-bubble-safe message for a non-200 provider (chat) error. | |
| 10120 | - * | |
| 10121 | - * Visitors must NEVER see raw API internals (model names, key/billing/quota | |
| 10122 | - * text). Admins (manage_options) get an actionable hint — and, for the common | |
| 10123 | - * "model not available on this key" case, a direct pointer to change the model | |
| 10124 | - * (the site owner can fix it in one click). Anthropic returns model-access as a | |
| 10125 | - * 4xx with a message like "Claude Fable 5 is not available. Please use Opus 4.8." | |
| 10126 | - * | |
| 10127 | - * Provider-agnostic by design (reusable for the xai/gemini/deepseek branches), | |
| 10128 | - * but Anthropic is the confirmed, reproduced case wired up here (plan 1d3b0f). | |
| 10129 | - * | |
| 10130 | - * @param int $http_code HTTP status from the provider. | |
| 10131 | - * @param string $error_message Raw provider error.message (may be empty). | |
| 10132 | - * @param string $provider_label Human provider name, e.g. 'Anthropic'. | |
| 10133 | - * @return string Message safe to render as a chat bubble. | |
| 10134 | - */ | |
| 10135 | -private function mxchat_friendly_chat_error($http_code, $error_message, $provider_label = '') { | |
| 10136 | - $raw = trim((string) $error_message); | |
| 10137 | - | |
| 10138 | - // Detect a model-access / availability problem the site owner can fix by | |
| 10139 | - // choosing a different model. (Anthropic phrasing + the common API shapes.) | |
| 10140 | - $low = strtolower($raw); | |
| 10141 | - $is_model_access = (strpos($low, 'not available') !== false) | |
| 10142 | - || (strpos($low, 'does not have access') !== false) | |
| 10143 | - || (strpos($low, 'do not have access') !== false) | |
| 10144 | - || (strpos($low, 'does not exist') !== false) // OpenAI: "model `x` does not exist or you do not have access" | |
| 10145 | - || (strpos($low, 'model_not_found') !== false) | |
| 10146 | - || (strpos($low, 'not_found_error') !== false) | |
| 10147 | - || (strpos($low, 'model not found') !== false) // xAI | |
| 10148 | - || (strpos($low, 'not found') !== false) // Gemini: "models/x is not found for API version ..." | |
| 10149 | - || (strpos($low, 'permission_denied') !== false) // Gemini gated model | |
| 10150 | - || (strpos($low, 'permission denied') !== false); | |
| 10151 | - | |
| 10152 | - if (current_user_can('manage_options')) { | |
| 10153 | - if ($is_model_access) { | |
| 10154 | - return $raw !== '' | |
| 10155 | - ? sprintf( | |
| 10156 | - /* translators: %s: raw provider error detail */ | |
| 10157 | - esc_html__('The selected AI model isn\'t available on your API key. Choose another model in MxChat → Settings. (Details: %s)', 'mxchat'), | |
| 10158 | - $raw | |
| 10159 | - ) | |
| 10160 | - : esc_html__('The selected AI model isn\'t available on your API key. Choose another model in MxChat → Settings.', 'mxchat'); | |
| 10161 | - } | |
| 10162 | - return $raw !== '' | |
| 10163 | - ? sprintf( | |
| 10164 | - /* translators: 1: provider label, 2: raw provider error detail */ | |
| 10165 | - esc_html__('The AI provider (%1$s) returned an error: %2$s. Check your model and API key in MxChat → Settings.', 'mxchat'), | |
| 10166 | - $provider_label !== '' ? $provider_label : esc_html__('AI', 'mxchat'), | |
| 10167 | - $raw | |
| 10168 | - ) | |
| 10169 | - : esc_html__('The AI provider returned an error. Check your model and API key in MxChat → Settings.', 'mxchat'); | |
| 10170 | - } | |
| 10171 | - | |
| 10172 | - // Visitors: friendly, generic, no internals leaked. | |
| 10173 | - return esc_html__('Sorry, I\'m having trouble responding right now. Please try again in a moment.', 'mxchat'); | |
| 10174 | -} | |
| 10175 | - | |
| 10176 | -private function mxchat_generate_response_claude($selected_model, $claude_api_key, $conversation_history, $relevant_content, $session_id = '') { | |
| 10177 | - // Anthropic retired claude-opus-4-20250514 / claude-sonnet-4-20250514 on 2026-06-15. | |
| 10178 | - // Read-time rescue: remap a saved dead ID to the current equivalent before the API call. | |
| 10179 | - if ($selected_model === 'claude-opus-4-20250514') { $selected_model = 'claude-opus-4-8'; } | |
| 10180 | - elseif ($selected_model === 'claude-sonnet-4-20250514') { $selected_model = 'claude-sonnet-4-6'; } | |
| 10181 | - | |
| 10182 | - // Get bot ID from session or request | |
| 10183 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 10184 | - | |
| 10185 | - // Get system prompt instructions using centralized function | |
| 10186 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 10187 | - | |
| 10188 | - // Clean and validate conversation history | |
| 10189 | - foreach ($conversation_history as &$message) { | |
| 10190 | - // Convert bot and agent roles to assistant | |
| 10191 | - if ($message['role'] === 'bot' || $message['role'] === 'agent') { | |
| 10192 | - $message['role'] = 'assistant'; | |
| 10193 | - } | |
| 10194 | - | |
| 10195 | - // Remove unsupported roles - Claude only supports 'assistant' and 'user' | |
| 10196 | - if (!in_array($message['role'], ['assistant', 'user'])) { | |
| 10197 | - $message['role'] = 'user'; | |
| 10198 | - } | |
| 10199 | - | |
| 10200 | - // Ensure content field exists | |
| 10201 | - if (!isset($message['content']) || empty($message['content'])) { | |
| 10202 | - $message['content'] = ''; | |
| 10203 | - } | |
| 10204 | - | |
| 10205 | - // Remove any unsupported fields | |
| 10206 | - $message = array_intersect_key($message, array_flip(['role', 'content'])); | |
| 10207 | - } | |
| 10208 | - | |
| 10209 | - // Add relevant content as the latest user message | |
| 10210 | - $conversation_history[] = [ | |
| 10211 | - 'role' => 'user', | |
| 10212 | - 'content' => $relevant_content | |
| 10213 | - ]; | |
| 10214 | - | |
| 10215 | - // Build request body | |
| 10216 | - $payload = [ | |
| 10217 | - 'model' => $selected_model, | |
| 10218 | - 'max_tokens' => 1000, | |
| 10219 | - 'temperature' => 0.8, | |
| 10220 | - 'messages' => $conversation_history, | |
| 10221 | - 'system' => $system_prompt_instructions | |
| 10222 | - ]; | |
| 10223 | - if ($this->mxchat_claude_omits_temperature($selected_model)) { unset($payload['temperature']); } | |
| 10224 | - $body = json_encode($payload); | |
| 10225 | - | |
| 10226 | - // Set up API request | |
| 10227 | - $args = [ | |
| 10228 | - 'body' => $body, | |
| 10229 | - 'headers' => [ | |
| 10230 | - 'Content-Type' => 'application/json', | |
| 10231 | - 'x-api-key' => $claude_api_key, | |
| 10232 | - 'anthropic-version' => '2023-06-01' | |
| 10233 | - ], | |
| 10234 | - 'timeout' => 60, | |
| 10235 | - 'redirection' => 5, | |
| 10236 | - 'blocking' => true, | |
| 10237 | - 'httpversion' => '1.0', | |
| 10238 | - 'sslverify' => true, | |
| 10239 | - ]; | |
| 10240 | - | |
| 10241 | - // Make API request | |
| 10242 | - $response = $this->mxchat_provider_call_with_retry('https://api.anthropic.com/v1/messages', $args, 'anthropic'); | |
| 10243 | - | |
| 10244 | - // Check for WordPress errors | |
| 10245 | - if (is_wp_error($response)) { | |
| 10246 | - //error_log("Claude API request error: " . $response->get_error_message()); | |
| 10247 | - return "Sorry, there was an error connecting to the API."; | |
| 10248 | - } | |
| 10249 | - | |
| 10250 | - // Check HTTP response code | |
| 10251 | - $http_code = wp_remote_retrieve_response_code($response); | |
| 10252 | - if ($http_code !== 200) { | |
| 10253 | - $error_body = wp_remote_retrieve_body($response); | |
| 10254 | - //error_log("Claude API HTTP error: " . $http_code . " - " . $error_body); | |
| 10255 | - | |
| 10256 | - // Try to extract error message from response | |
| 10257 | - $error_data = json_decode($error_body, true); | |
| 10258 | - $error_message = isset($error_data['error']['message']) ? | |
| 10259 | - $error_data['error']['message'] : | |
| 10260 | - "HTTP error " . $http_code; | |
| 10261 | - | |
| 10262 | - // Surface an admin-actionable message (and a model-change pointer for the | |
| 10263 | - // model-access case) without leaking raw API internals to visitors. This | |
| 10264 | - // is the single chokepoint for BOTH the non-streaming and streaming Claude | |
| 10265 | - // paths (the stream's non-200 fallback re-enters this method). plan 1d3b0f. | |
| 10266 | - return $this->mxchat_friendly_chat_error($http_code, $error_message, 'Anthropic'); | |
| 10267 | - } | |
| 10268 | - | |
| 10269 | - // Parse response | |
| 10270 | - $response_body = json_decode(wp_remote_retrieve_body($response), true); | |
| 10271 | - | |
| 10272 | - // Check for JSON decode errors | |
| 10273 | - if (json_last_error() !== JSON_ERROR_NONE) { | |
| 10274 | - //error_log("Claude API JSON decode error: " . json_last_error_msg()); | |
| 10275 | - return "Sorry, there was an error processing the API response."; | |
| 10276 | - } | |
| 10277 | - | |
| 10278 | - // Extract and validate response content. claude-fable-5 prepends a | |
| 10279 | - // thinking block to content even with no thinking param — take the first | |
| 10280 | - // TEXT block rather than content[0]. | |
| 10281 | - if (isset($response_body['content']) && is_array($response_body['content'])) { | |
| 10282 | - foreach ($response_body['content'] as $block) { | |
| 10283 | - if (isset($block['type'], $block['text']) && $block['type'] === 'text') { | |
| 10284 | - return trim($block['text']); | |
| 10285 | - } | |
| 10286 | - } | |
| 10287 | - } | |
| 10288 | - | |
| 10289 | - // Log unexpected response format | |
| 10290 | - //error_log("Claude API unexpected response format: " . print_r($response_body, true)); | |
| 10291 | - return "Sorry, I received an unexpected response format from the API."; | |
| 10292 | -} | |
| 10293 | -private function mxchat_generate_response_openai($selected_model, $api_key, $conversation_history, $relevant_content, $session_id = '') { | |
| 10294 | - try { | |
| 10295 | - // Ensure conversation_history is an array | |
| 10296 | - if (!is_array($conversation_history)) { | |
| 10297 | - $conversation_history = array(); | |
| 10298 | - } | |
| 10299 | - | |
| 10300 | - // Get bot ID from session or request. plan eb9c38: resolve the real bot | |
| 10301 | - // from the session (was hardcoded '' → always default bot on multi-bot | |
| 10302 | - // installs) and fix the undefined $session_id that fed get_system_instructions. | |
| 10303 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 10304 | - | |
| 10305 | - // Get system prompt instructions using centralized function | |
| 10306 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 10307 | - | |
| 10308 | - // Create a new array for the formatted conversation | |
| 10309 | - $formatted_conversation = array(); | |
| 10310 | - | |
| 10311 | - // Add system message first | |
| 10312 | - $formatted_conversation[] = array( | |
| 10313 | - 'role' => 'system', | |
| 10314 | - 'content' => $system_prompt_instructions . " " . $relevant_content | |
| 10315 | - ); | |
| 10316 | - | |
| 10317 | - // Add the rest of the conversation history | |
| 10318 | - foreach ($conversation_history as $message) { | |
| 10319 | - if (is_array($message) && isset($message['role']) && isset($message['content'])) { | |
| 10320 | - $role = $message['role']; | |
| 10321 | - | |
| 10322 | - // Convert roles to supported format | |
| 10323 | - if ($role === 'bot' || $role === 'agent') { | |
| 10324 | - $role = 'assistant'; | |
| 10325 | - } | |
| 10326 | - if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) { | |
| 10327 | - $role = 'user'; | |
| 10328 | - } | |
| 10329 | - | |
| 10330 | - $formatted_conversation[] = array( | |
| 10331 | - 'role' => $role, | |
| 10332 | - 'content' => $message['content'] | |
| 10333 | - ); | |
| 10334 | - } | |
| 10335 | - } | |
| 10336 | - | |
| 10337 | - // Check if this is a GPT-5 model (supports reasoning_effort parameter) | |
| 10338 | - $is_gpt5_model = ( | |
| 10339 | - strpos($selected_model, 'gpt-5') === 0 || | |
| 10340 | - $selected_model === 'gpt-5.2' || | |
| 10341 | - $selected_model === 'gpt-5.1-2025-11-13' || | |
| 10342 | - $selected_model === 'gpt-5' || | |
| 10343 | - $selected_model === 'gpt-5-mini' || | |
| 10344 | - $selected_model === 'gpt-5-nano' | |
| 10345 | - ); | |
| 10346 | - | |
| 10347 | - // Build request body with optimal settings for fast responses | |
| 10348 | - $request_body = [ | |
| 10349 | - 'model' => $selected_model, | |
| 10350 | - 'messages' => $formatted_conversation, | |
| 10351 | - 'temperature' => 1, | |
| 10352 | - 'stream' => false | |
| 10353 | - ]; | |
| 10354 | - | |
| 10355 | - // Add reasoning_effort only for GPT-5 models that support it | |
| 10356 | - // These chat models don't support reasoning_effort parameter | |
| 10357 | - $no_reasoning_models = array('gpt-5.2', 'gpt-5.1-chat-latest', 'gpt-5.3-chat-latest', 'gpt-5.4-mini', 'gpt-5.4-nano'); | |
| 10358 | - if ($is_gpt5_model && !in_array($selected_model, $no_reasoning_models, true)) { | |
| 10359 | - // GPT-5.1 uses 'low' instead of 'minimal' | |
| 10360 | - if ($selected_model === 'gpt-5.1-2025-11-13') { | |
| 10361 | - $request_body['reasoning_effort'] = 'low'; | |
| 10362 | - } elseif ($selected_model === 'gpt-5.5') { | |
| 10363 | - $request_body['reasoning_effort'] = 'none'; | |
| 10364 | - } elseif ($selected_model === 'gpt-5.4') { | |
| 10365 | - $request_body['reasoning_effort'] = 'none'; | |
| 10366 | - } else { | |
| 10367 | - $request_body['reasoning_effort'] = 'minimal'; | |
| 10368 | - } | |
| 10369 | - } | |
| 10370 | - | |
| 10371 | - $body = json_encode($request_body); | |
| 10372 | - | |
| 10373 | - $args = [ | |
| 10374 | - 'body' => $body, | |
| 10375 | - 'headers' => [ | |
| 10376 | - 'Content-Type' => 'application/json', | |
| 10377 | - 'Authorization' => 'Bearer ' . $api_key, | |
| 10378 | - ], | |
| 10379 | - 'timeout' => 60, | |
| 10380 | - 'redirection' => 5, | |
| 10381 | - 'blocking' => true, | |
| 10382 | - 'httpversion' => '1.0', | |
| 10383 | - 'sslverify' => true, | |
| 10384 | - ]; | |
| 10385 | - | |
| 10386 | - $response = $this->mxchat_provider_call_with_retry('https://api.openai.com/v1/chat/completions', $args, 'openai'); | |
| 10387 | - | |
| 10388 | - if (is_wp_error($response)) { | |
| 10389 | - $error_message = $response->get_error_message(); | |
| 10390 | - return [ | |
| 10391 | - 'error' => $this->mxchat_friendly_chat_error(0, $error_message, 'OpenAI'), | |
| 10392 | - 'error_code' => 'openai_connection_error', | |
| 10393 | - 'provider' => 'openai' | |
| 10394 | - ]; | |
| 10395 | - } | |
| 10396 | - | |
| 10397 | - $status_code = wp_remote_retrieve_response_code($response); | |
| 10398 | - if ($status_code !== 200) { | |
| 10399 | - $response_body = wp_remote_retrieve_body($response); | |
| 10400 | - $decoded_response = json_decode($response_body, true); | |
| 10401 | - | |
| 10402 | - $error_message = isset($decoded_response['error']['message']) | |
| 10403 | - ? $decoded_response['error']['message'] | |
| 10404 | - : 'HTTP Error ' . $status_code; | |
| 10405 | - | |
| 10406 | - $error_type = isset($decoded_response['error']['type']) | |
| 10407 | - ? $decoded_response['error']['type'] | |
| 10408 | - : 'unknown'; | |
| 10409 | - | |
| 10410 | - // Handle specific error types | |
| 10411 | - switch ($error_type) { | |
| 10412 | - case 'invalid_request_error': | |
| 10413 | - if (strpos($error_message, 'API key') !== false) { | |
| 10414 | - return [ | |
| 10415 | - 'error' => esc_html__('Invalid OpenAI API key. Please check your API key configuration.', 'mxchat'), | |
| 10416 | - 'error_code' => 'openai_invalid_api_key', | |
| 10417 | - 'provider' => 'openai' | |
| 10418 | - ]; | |
| 10419 | - } | |
| 10420 | - break; | |
| 10421 | - | |
| 10422 | - case 'authentication_error': | |
| 10423 | - return [ | |
| 10424 | - 'error' => esc_html__('Authentication failed with OpenAI. Please check your API key.', 'mxchat'), | |
| 10425 | - 'error_code' => 'openai_auth_error', | |
| 10426 | - 'provider' => 'openai' | |
| 10427 | - ]; | |
| 10428 | - | |
| 10429 | - case 'rate_limit_exceeded': | |
| 10430 | - return [ | |
| 10431 | - 'error' => esc_html__('OpenAI rate limit exceeded. Please try again later.', 'mxchat'), | |
| 10432 | - 'error_code' => 'openai_rate_limit', | |
| 10433 | - 'provider' => 'openai' | |
| 10434 | - ]; | |
| 10435 | - | |
| 10436 | - case 'quota_exceeded': | |
| 10437 | - return [ | |
| 10438 | - 'error' => esc_html__('OpenAI API quota exceeded. Please check your billing details.', 'mxchat'), | |
| 10439 | - 'error_code' => 'openai_quota_exceeded', | |
| 10440 | - 'provider' => 'openai' | |
| 10441 | - ]; | |
| 10442 | - } | |
| 10443 | - | |
| 10444 | - // Generic error fallback only — the typed cases above already produce | |
| 10445 | - // clean messages. Route the raw-tail generic case through the leak-safe | |
| 10446 | - // helper so visitors never see provider internals. plan 5da59a. | |
| 10447 | - return [ | |
| 10448 | - 'error' => $this->mxchat_friendly_chat_error($status_code, $error_message, 'OpenAI'), | |
| 10449 | - 'error_code' => 'openai_api_error', | |
| 10450 | - 'provider' => 'openai', | |
| 10451 | - 'status_code' => $status_code | |
| 10452 | - ]; | |
| 10453 | - } | |
| 10454 | - | |
| 10455 | - $response_body = wp_remote_retrieve_body($response); | |
| 10456 | - $decoded_response = json_decode($response_body, true); | |
| 10457 | - | |
| 10458 | - if (isset($decoded_response['choices'][0]['message']['content'])) { | |
| 10459 | - return trim($decoded_response['choices'][0]['message']['content']); | |
| 10460 | - } else { | |
| 10461 | - return [ | |
| 10462 | - 'error' => esc_html__('Unexpected response format from OpenAI.', 'mxchat'), | |
| 10463 | - 'error_code' => 'openai_response_format_error', | |
| 10464 | - 'provider' => 'openai' | |
| 10465 | - ]; | |
| 10466 | - } | |
| 10467 | - } catch (Exception $e) { | |
| 10468 | - return [ | |
| 10469 | - 'error' => esc_html__('System error when processing OpenAI request: ', 'mxchat') . esc_html($e->getMessage()), | |
| 10470 | - 'error_code' => 'openai_exception', | |
| 10471 | - 'provider' => 'openai' | |
| 10472 | - ]; | |
| 10473 | - } | |
| 10474 | -} | |
| 10475 | - | |
| 10476 | -private function mxchat_generate_response_xai($selected_model, $xai_api_key, $conversation_history, $relevant_content, $session_id = '') { | |
| 10477 | - try { | |
| 10478 | - // Get bot ID from session or request | |
| 10479 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 10480 | - | |
| 10481 | - // Get system prompt instructions using centralized function | |
| 10482 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 10483 | - | |
| 10484 | - // Add system prompt to relevant content | |
| 10485 | - $content_with_instructions = $system_prompt_instructions . " " . $relevant_content; | |
| 10486 | - | |
| 10487 | - // Prepend system instructions to the conversation history | |
| 10488 | - array_unshift($conversation_history, [ | |
| 10489 | - 'role' => 'system', | |
| 10490 | - 'content' => "Here are your instructions: " . $content_with_instructions | |
| 10491 | - ]); | |
| 10492 | - | |
| 10493 | - // Ensure consistency: Replace 'bot' and 'agent' roles with supported values | |
| 10494 | - foreach ($conversation_history as &$message) { | |
| 10495 | - if ($message['role'] === 'bot') { | |
| 10496 | - $message['role'] = 'assistant'; | |
| 10497 | - } elseif ($message['role'] === 'agent') { | |
| 10498 | - // Tag the message as coming from a live agent | |
| 10499 | - $message['role'] = 'assistant'; | |
| 10500 | - if (!isset($message['metadata'])) { | |
| 10501 | - $message['metadata'] = ['source' => 'live_agent']; | |
| 10502 | - } | |
| 10503 | - } | |
| 10504 | - | |
| 10505 | - // Ensure all roles are valid | |
| 10506 | - if (!in_array($message['role'], ['system', 'assistant', 'user', 'function', 'tool'])) { | |
| 10507 | - $message['role'] = 'user'; // Default to 'user' | |
| 10508 | - } | |
| 10509 | - } | |
| 10510 | - | |
| 10511 | - // Build the request body | |
| 10512 | - $body = json_encode([ | |
| 10513 | - 'model' => $selected_model, | |
| 10514 | - 'messages' => $conversation_history, | |
| 10515 | - 'temperature' => 0.8, | |
| 10516 | - 'stream' => false | |
| 10517 | - ]); | |
| 10518 | - | |
| 10519 | - // Set up the API request | |
| 10520 | - $args = [ | |
| 10521 | - 'body' => $body, | |
| 10522 | - 'headers' => [ | |
| 10523 | - 'Content-Type' => 'application/json', | |
| 10524 | - 'Authorization' => 'Bearer ' . $xai_api_key, | |
| 10525 | - ], | |
| 10526 | - 'timeout' => 60, | |
| 10527 | - 'redirection' => 5, | |
| 10528 | - 'blocking' => true, | |
| 10529 | - 'httpversion' => '1.0', | |
| 10530 | - 'sslverify' => true, | |
| 10531 | - ]; | |
| 10532 | - | |
| 10533 | - // Make the API request | |
| 10534 | - $response = $this->mxchat_provider_call_with_retry('https://api.x.ai/v1/chat/completions', $args, 'xai'); | |
| 10535 | - | |
| 10536 | - // Process the response | |
| 10537 | - if (is_wp_error($response)) { | |
| 10538 | - $error_message = $response->get_error_message(); | |
| 10539 | - //error_log('X.AI API Error: ' . $error_message); | |
| 10540 | - return [ | |
| 10541 | - 'error' => $this->mxchat_friendly_chat_error(0, $error_message, 'X.AI'), | |
| 10542 | - 'error_code' => 'xai_connection_error', | |
| 10543 | - 'provider' => 'xai' | |
| 10544 | - ]; | |
| 10545 | - } | |
| 10546 | - | |
| 10547 | - $status_code = wp_remote_retrieve_response_code($response); | |
| 10548 | - if ($status_code !== 200) { | |
| 10549 | - $response_body = wp_remote_retrieve_body($response); | |
| 10550 | - $decoded_response = json_decode($response_body, true); | |
| 10551 | - | |
| 10552 | - // Log the full response for debugging | |
| 10553 | - //error_log('X.AI Error Response: ' . print_r($decoded_response, true)); | |
| 10554 | - | |
| 10555 | - // Extract error message from X.AI's specific format | |
| 10556 | - $error_message = ''; | |
| 10557 | - | |
| 10558 | - // Check for direct error string (as seen in your logs) | |
| 10559 | - if (isset($decoded_response['error']) && is_string($decoded_response['error'])) { | |
| 10560 | - $error_message = $decoded_response['error']; | |
| 10561 | - } | |
| 10562 | - // Check for nested error object (OpenAI style) | |
| 10563 | - elseif (isset($decoded_response['error']['message'])) { | |
| 10564 | - $error_message = $decoded_response['error']['message']; | |
| 10565 | - } | |
| 10566 | - // Check for top-level message | |
| 10567 | - elseif (isset($decoded_response['message'])) { | |
| 10568 | - $error_message = $decoded_response['message']; | |
| 10569 | - } | |
| 10570 | - // Fallback | |
| 10571 | - else { | |
| 10572 | - $error_message = 'HTTP Error ' . $status_code; | |
| 10573 | - } | |
| 10574 | - | |
| 10575 | - //error_log('X.AI API HTTP Error: ' . $status_code . ' - ' . $error_message); | |
| 10576 | - | |
| 10577 | - // Check for API key errors using string matching | |
| 10578 | - if (stripos($error_message, 'api key') !== false || | |
| 10579 | - stripos($error_message, 'incorrect api key') !== false || | |
| 10580 | - stripos($error_message, 'invalid api key') !== false) { | |
| 10581 | - return [ | |
| 10582 | - 'error' => esc_html__('Invalid X.AI API key. Please check your API key configuration.', 'mxchat'), | |
| 10583 | - 'error_code' => 'xai_invalid_api_key', | |
| 10584 | - 'provider' => 'xai' | |
| 10585 | - ]; | |
| 10586 | - } | |
| 10587 | - | |
| 10588 | - // Authentication errors | |
| 10589 | - if ($status_code === 401 || $status_code === 403 || | |
| 10590 | - stripos($error_message, 'auth') !== false) { | |
| 10591 | - return [ | |
| 10592 | - 'error' => esc_html__('Authentication failed with X.AI. Please check your API key.', 'mxchat'), | |
| 10593 | - 'error_code' => 'xai_auth_error', | |
| 10594 | - 'provider' => 'xai' | |
| 10595 | - ]; | |
| 10596 | - } | |
| 10597 | - | |
| 10598 | - // Model errors | |
| 10599 | - if (stripos($error_message, 'model') !== false) { | |
| 10600 | - return [ | |
| 10601 | - 'error' => esc_html__('Invalid model specified for X.AI. Please check your model configuration.', 'mxchat'), | |
| 10602 | - 'error_code' => 'xai_invalid_model', | |
| 10603 | - 'provider' => 'xai' | |
| 10604 | - ]; | |
| 10605 | - } | |
| 10606 | - | |
| 10607 | - // Rate limit errors | |
| 10608 | - if ($status_code === 429 || | |
| 10609 | - stripos($error_message, 'rate') !== false || | |
| 10610 | - stripos($error_message, 'limit') !== false) { | |
| 10611 | - return [ | |
| 10612 | - 'error' => esc_html__('X.AI rate limit exceeded. Please try again later.', 'mxchat'), | |
| 10613 | - 'error_code' => 'xai_rate_limit', | |
| 10614 | - 'provider' => 'xai' | |
| 10615 | - ]; | |
| 10616 | - } | |
| 10617 | - | |
| 10618 | - // Quota errors | |
| 10619 | - if (stripos($error_message, 'quota') !== false || | |
| 10620 | - stripos($error_message, 'billing') !== false) { | |
| 10621 | - return [ | |
| 10622 | - 'error' => esc_html__('X.AI API quota exceeded. Please check your billing details.', 'mxchat'), | |
| 10623 | - 'error_code' => 'xai_quota_exceeded', | |
| 10624 | - 'provider' => 'xai' | |
| 10625 | - ]; | |
| 10626 | - } | |
| 10627 | - | |
| 10628 | - // Server errors | |
| 10629 | - if ($status_code >= 500) { | |
| 10630 | - return [ | |
| 10631 | - 'error' => esc_html__('X.AI service is currently unavailable. Please try again later.', 'mxchat'), | |
| 10632 | - 'error_code' => 'xai_service_unavailable', | |
| 10633 | - 'provider' => 'xai' | |
| 10634 | - ]; | |
| 10635 | - } | |
| 10636 | - | |
| 10637 | - // Generic error fallback. Route the user-facing text through the | |
| 10638 | - // leak-safe helper (admins get an actionable hint, visitors a generic | |
| 10639 | - // fallback) instead of echoing raw provider internals. Preserve the | |
| 10640 | - // structured contract (error_code/provider/status_code) for logging. plan 5da59a. | |
| 10641 | - return [ | |
| 10642 | - 'error' => $this->mxchat_friendly_chat_error($status_code, $error_message, 'xAI'), | |
| 10643 | - 'error_code' => 'xai_api_error', | |
| 10644 | - 'provider' => 'xai', | |
| 10645 | - 'status_code' => $status_code | |
| 10646 | - ]; | |
| 10647 | - } | |
| 10648 | - | |
| 10649 | - $response_body = wp_remote_retrieve_body($response); | |
| 10650 | - $decoded_response = json_decode($response_body, true); | |
| 10651 | - | |
| 10652 | - if (isset($decoded_response['choices'][0]['message']['content'])) { | |
| 10653 | - return trim($decoded_response['choices'][0]['message']['content']); | |
| 10654 | - } else { | |
| 10655 | - //error_log('X.AI API Response Format Error: ' . print_r($decoded_response, true)); | |
| 10656 | - return [ | |
| 10657 | - 'error' => esc_html__('Unexpected response format from X.AI.', 'mxchat'), | |
| 10658 | - 'error_code' => 'xai_response_format_error', | |
| 10659 | - 'provider' => 'xai' | |
| 10660 | - ]; | |
| 10661 | - } | |
| 10662 | -} catch (Exception $e) { | |
| 10663 | - //error_log('X.AI Exception: ' . $e->getMessage()); | |
| 10664 | - return [ | |
| 10665 | - 'error' => esc_html__('System error when processing X.AI request: ', 'mxchat') . esc_html($e->getMessage()), | |
| 10666 | - 'error_code' => 'xai_exception', | |
| 10667 | - 'provider' => 'xai' | |
| 10668 | - ]; | |
| 10669 | -} | |
| 10670 | - | |
| 10671 | - | |
| 10672 | -} | |
| 10673 | -private function mxchat_generate_response_deepseek($selected_model, $deepseek_api_key, $conversation_history, $relevant_content, $session_id = '') { | |
| 10674 | - try { | |
| 10675 | - // Ensure conversation_history is an array | |
| 10676 | - if (!is_array($conversation_history)) { | |
| 10677 | - $conversation_history = array(); | |
| 10678 | - } | |
| 10679 | - | |
| 10680 | - // Get bot ID from session or request | |
| 10681 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 10682 | - | |
| 10683 | - // Get system prompt instructions using centralized function | |
| 10684 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 10685 | - | |
| 10686 | - // Create a new array for the formatted conversation | |
| 10687 | - $formatted_conversation = array(); | |
| 10688 | - | |
| 10689 | - // Add system message first | |
| 10690 | - $formatted_conversation[] = array( | |
| 10691 | - 'role' => 'system', | |
| 10692 | - 'content' => $system_prompt_instructions . " " . $relevant_content | |
| 10693 | - ); | |
| 10694 | - | |
| 10695 | - // Add the rest of the conversation history | |
| 10696 | - foreach ($conversation_history as $message) { | |
| 10697 | - if (is_array($message) && isset($message['role']) && isset($message['content'])) { | |
| 10698 | - $role = $message['role']; | |
| 10699 | - | |
| 10700 | - // Convert roles to supported format | |
| 10701 | - if ($role === 'bot' || $role === 'agent') { | |
| 10702 | - $role = 'assistant'; | |
| 10703 | - } | |
| 10704 | - if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) { | |
| 10705 | - $role = 'user'; | |
| 10706 | - } | |
| 10707 | - | |
| 10708 | - $formatted_conversation[] = array( | |
| 10709 | - 'role' => $role, | |
| 10710 | - 'content' => $message['content'] | |
| 10711 | - ); | |
| 10712 | - } | |
| 10713 | - } | |
| 10714 | - | |
| 10715 | - $body = json_encode([ | |
| 10716 | - 'model' => $selected_model, | |
| 10717 | - 'messages' => $formatted_conversation, | |
| 10718 | - 'temperature' => 0.8, | |
| 10719 | - 'stream' => false | |
| 10720 | - ]); | |
| 10721 | - | |
| 10722 | - $args = [ | |
| 10723 | - 'body' => $body, | |
| 10724 | - 'headers' => [ | |
| 10725 | - 'Content-Type' => 'application/json', | |
| 10726 | - 'Authorization' => 'Bearer ' . $deepseek_api_key, | |
| 10727 | - ], | |
| 10728 | - 'timeout' => 60, | |
| 10729 | - 'redirection' => 5, | |
| 10730 | - 'blocking' => true, | |
| 10731 | - 'httpversion' => '1.0', | |
| 10732 | - 'sslverify' => true, | |
| 10733 | - ]; | |
| 10734 | - | |
| 10735 | - $response = $this->mxchat_provider_call_with_retry('https://api.deepseek.com/v1/chat/completions', $args, 'openai'); | |
| 10736 | - | |
| 10737 | - if (is_wp_error($response)) { | |
| 10738 | - $error_message = $response->get_error_message(); | |
| 10739 | - //error_log('DeepSeek API Error: ' . $error_message); | |
| 10740 | - return [ | |
| 10741 | - 'error' => $this->mxchat_friendly_chat_error(0, $error_message, 'DeepSeek'), | |
| 10742 | - 'error_code' => 'deepseek_connection_error', | |
| 10743 | - 'provider' => 'deepseek' | |
| 10744 | - ]; | |
| 10745 | - } | |
| 10746 | - | |
| 10747 | - $status_code = wp_remote_retrieve_response_code($response); | |
| 10748 | - if ($status_code !== 200) { | |
| 10749 | - $response_body = wp_remote_retrieve_body($response); | |
| 10750 | - $decoded_response = json_decode($response_body, true); | |
| 10751 | - | |
| 10752 | - $error_message = isset($decoded_response['error']['message']) | |
| 10753 | - ? $decoded_response['error']['message'] | |
| 10754 | - : 'HTTP Error ' . $status_code; | |
| 10755 | - | |
| 10756 | - $error_type = isset($decoded_response['error']['type']) | |
| 10757 | - ? $decoded_response['error']['type'] | |
| 10758 | - : 'unknown'; | |
| 10759 | - | |
| 10760 | - //error_log('DeepSeek API HTTP Error: ' . $status_code . ' - ' . $error_message); | |
| 10761 | - | |
| 10762 | - // Handle specific error types | |
| 10763 | - switch ($status_code) { | |
| 10764 | - case 401: | |
| 10765 | - return [ | |
| 10766 | - 'error' => esc_html__('Authentication failed with DeepSeek. Please check your API key.', 'mxchat'), | |
| 10767 | - 'error_code' => 'deepseek_auth_error', | |
| 10768 | - 'provider' => 'deepseek' | |
| 10769 | - ]; | |
| 10770 | - | |
| 10771 | - case 400: | |
| 10772 | - if (strpos($error_message, 'API key') !== false) { | |
| 10773 | - return [ | |
| 10774 | - 'error' => esc_html__('Invalid DeepSeek API key. Please check your API key configuration.', 'mxchat'), | |
| 10775 | - 'error_code' => 'deepseek_invalid_api_key', | |
| 10776 | - 'provider' => 'deepseek' | |
| 10777 | - ]; | |
| 10778 | - } | |
| 10779 | - break; | |
| 10780 | - | |
| 10781 | - case 429: | |
| 10782 | - if (strpos($error_message, 'quota') !== false) { | |
| 10783 | - return [ | |
| 10784 | - 'error' => esc_html__('DeepSeek API quota exceeded. Please check your billing details.', 'mxchat'), | |
| 10785 | - 'error_code' => 'deepseek_quota_exceeded', | |
| 10786 | - 'provider' => 'deepseek' | |
| 10787 | - ]; | |
| 10788 | - } else { | |
| 10789 | - return [ | |
| 10790 | - 'error' => esc_html__('DeepSeek rate limit exceeded. Please try again later.', 'mxchat'), | |
| 10791 | - 'error_code' => 'deepseek_rate_limit', | |
| 10792 | - 'provider' => 'deepseek' | |
| 10793 | - ]; | |
| 10794 | - } | |
| 10795 | - | |
| 10796 | - case 500: | |
| 10797 | - case 502: | |
| 10798 | - case 503: | |
| 10799 | - case 504: | |
| 10800 | - return [ | |
| 10801 | - 'error' => esc_html__('DeepSeek service is currently unavailable. Please try again later.', 'mxchat'), | |
| 10802 | - 'error_code' => 'deepseek_service_unavailable', | |
| 10803 | - 'provider' => 'deepseek' | |
| 10804 | - ]; | |
| 10805 | - } | |
| 10806 | - | |
| 10807 | - // Generic error fallback — leak-safe helper (see plan 5da59a / 1d3b0f). | |
| 10808 | - return [ | |
| 10809 | - 'error' => $this->mxchat_friendly_chat_error($status_code, $error_message, 'DeepSeek'), | |
| 10810 | - 'error_code' => 'deepseek_api_error', | |
| 10811 | - 'provider' => 'deepseek', | |
| 10812 | - 'status_code' => $status_code | |
| 10813 | - ]; | |
| 10814 | - } | |
| 10815 | - | |
| 10816 | - $response_body = wp_remote_retrieve_body($response); | |
| 10817 | - $decoded_response = json_decode($response_body, true); | |
| 10818 | - | |
| 10819 | - if (isset($decoded_response['choices'][0]['message']['content'])) { | |
| 10820 | - return trim($decoded_response['choices'][0]['message']['content']); | |
| 10821 | - } else { | |
| 10822 | - //error_log('DeepSeek API Response Format Error: ' . print_r($decoded_response, true)); | |
| 10823 | - return [ | |
| 10824 | - 'error' => esc_html__('Unexpected response format from DeepSeek.', 'mxchat'), | |
| 10825 | - 'error_code' => 'deepseek_response_format_error', | |
| 10826 | - 'provider' => 'deepseek' | |
| 10827 | - ]; | |
| 10828 | - } | |
| 10829 | - } catch (Exception $e) { | |
| 10830 | - //error_log('DeepSeek Exception: ' . $e->getMessage()); | |
| 10831 | - return [ | |
| 10832 | - 'error' => esc_html__('System error when processing DeepSeek request: ', 'mxchat') . esc_html($e->getMessage()), | |
| 10833 | - 'error_code' => 'deepseek_exception', | |
| 10834 | - 'provider' => 'deepseek' | |
| 10835 | - ]; | |
| 10836 | - } | |
| 10837 | -} | |
| 10838 | -private function mxchat_generate_response_gemini($selected_model, $gemini_api_key, $conversation_history, $relevant_content, $session_id = '') { | |
| 10839 | - // Read-time remap: gemini-3-pro-preview was shut down March 9, 2026. | |
| 10840 | - // Auto-rescue existing installs whose saved model is the dead ID. | |
| 10841 | - if ($selected_model === 'gemini-3-pro-preview') { | |
| 10842 | - $selected_model = 'gemini-3.1-pro-preview'; | |
| 10843 | - } | |
| 10844 | - // Get bot ID from session or request | |
| 10845 | - $bot_id = $this->get_current_bot_id($session_id); | |
| 10846 | - | |
| 10847 | - // Get system prompt instructions using centralized function | |
| 10848 | - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id); | |
| 10849 | - | |
| 10850 | - // Add system prompt to relevant content | |
| 10851 | - $content_with_instructions = $system_prompt_instructions . " " . $relevant_content; | |
| 10852 | - | |
| 10853 | - // Format messages for Gemini API | |
| 10854 | - $formatted_messages = []; | |
| 10855 | - | |
| 10856 | - // Add system message as the first user message with role prefix | |
| 10857 | - // Note: Gemini doesn't have a dedicated system role, so we use a prefixed user message | |
| 10858 | - $formatted_messages[] = [ | |
| 10859 | - 'role' => 'user', | |
| 10860 | - 'parts' => [ | |
| 10861 | - ['text' => "[System Instructions] " . $content_with_instructions] | |
| 10862 | - ] | |
| 10863 | - ]; | |
| 10864 | - | |
| 10865 | - // Add model response to acknowledge system instructions | |
| 10866 | - $formatted_messages[] = [ | |
| 10867 | - 'role' => 'model', | |
| 10868 | - 'parts' => [ | |
| 10869 | - ['text' => "I understand and will follow these instructions."] | |
| 10870 | - ] | |
| 10871 | - ]; | |
| 10872 | - | |
| 10873 | - // Process the rest of the conversation history | |
| 10874 | - $current_role = null; | |
| 10875 | - $current_parts = []; | |
| 10876 | - | |
| 10877 | - foreach ($conversation_history as $message) { | |
| 10878 | - // Skip the first system message as we already handled it | |
| 10879 | - if ($message['role'] === 'system') { | |
| 10880 | - continue; | |
| 10881 | - } | |
| 10882 | - | |
| 10883 | - // Map roles to Gemini format | |
| 10884 | - $gemini_role = ''; | |
| 10885 | - if ($message['role'] === 'user') { | |
| 10886 | - $gemini_role = 'user'; | |
| 10887 | - } else if (in_array($message['role'], ['assistant', 'bot', 'agent'])) { | |
| 10888 | - $gemini_role = 'model'; | |
| 10889 | - } else { | |
| 10890 | - // Skip unsupported roles | |
| 10891 | - continue; | |
| 10892 | - } | |
| 10893 | - | |
| 10894 | - // If we have a new role, add the previous message | |
| 10895 | - if ($current_role !== null && $current_role !== $gemini_role && !empty($current_parts)) { | |
| 10896 | - $formatted_messages[] = [ | |
| 10897 | - 'role' => $current_role, | |
| 10898 | - 'parts' => $current_parts | |
| 10899 | - ]; | |
| 10900 | - $current_parts = []; | |
| 10901 | - } | |
| 10902 | - | |
| 10903 | - // Set current role and add text to parts | |
| 10904 | - $current_role = $gemini_role; | |
| 10905 | - $current_parts[] = ['text' => $message['content']]; | |
| 10906 | - } | |
| 10907 | - | |
| 10908 | - // Add the last message if there's content | |
| 10909 | - if ($current_role !== null && !empty($current_parts)) { | |
| 10910 | - $formatted_messages[] = [ | |
| 10911 | - 'role' => $current_role, | |
| 10912 | - 'parts' => $current_parts | |
| 10913 | - ]; | |
| 10914 | - } | |
| 10915 | - | |
| 10916 | - // Built-in Web Search grounding for Gemini (plan 46b9ea). | |
| 10917 | - // The enable_web_search toggle historically routed ONLY to OpenAI's web_search | |
| 10918 | - // tool; for a Gemini chat model it was a silent no-op. Gemini grounds natively | |
| 10919 | - // (and free) via the Google Search tool, so when the toggle is on we attach it | |
| 10920 | - // here on the PLAIN dispatch path. The function-calling loop (mxchat_fc_loop_gemini) | |
| 10921 | - // is a SEPARATE path reached only when AI Tools are active, so grounding here | |
| 10922 | - // never double-fires with function calling. | |
| 10923 | - $web_search_enabled = isset($this->options['enable_web_search']) && $this->options['enable_web_search'] === 'on'; | |
| 10924 | - // Gemini ids that do NOT support Google Search grounding (none today — every | |
| 10925 | - // shipped chat model is 2.x/3.x and grounds natively). Kept as the explicit | |
| 10926 | - // opt-out list mirroring the OpenAI $unsupported_web_search_models pattern. | |
| 10927 | - $gemini_unsupported_grounding = array(); | |
| 10928 | - $grounding_active = $web_search_enabled && !in_array($selected_model, $gemini_unsupported_grounding, true); | |
| 10929 | - | |
| 10930 | - // Build the request body | |
| 10931 | - $request_payload = [ | |
| 10932 | - 'contents' => $formatted_messages, | |
| 10933 | - 'generationConfig' => [ | |
| 10934 | - 'temperature' => 0.7, | |
| 10935 | - 'topP' => 0.95, | |
| 10936 | - 'topK' => 40, | |
| 10937 | - 'maxOutputTokens' => 8192, | |
| 10938 | - ], | |
| 10939 | - 'safetySettings' => [ | |
| 10940 | - [ | |
| 10941 | - 'category' => 'HARM_CATEGORY_HARASSMENT', | |
| 10942 | - 'threshold' => 'BLOCK_MEDIUM_AND_ABOVE' | |
| 10943 | - ], | |
| 10944 | - [ | |
| 10945 | - 'category' => 'HARM_CATEGORY_HATE_SPEECH', | |
| 10946 | - 'threshold' => 'BLOCK_MEDIUM_AND_ABOVE' | |
| 10947 | - ], | |
| 10948 | - [ | |
| 10949 | - 'category' => 'HARM_CATEGORY_SEXUALLY_EXPLICIT', | |
| 10950 | - 'threshold' => 'BLOCK_MEDIUM_AND_ABOVE' | |
| 10951 | - ], | |
| 10952 | - [ | |
| 10953 | - 'category' => 'HARM_CATEGORY_DANGEROUS_CONTENT', | |
| 10954 | - 'threshold' => 'BLOCK_MEDIUM_AND_ABOVE' | |
| 10955 | - ] | |
| 10956 | - ] | |
| 10957 | - ]; | |
| 10958 | - | |
| 10959 | - if ($grounding_active) { | |
| 10960 | - // Gemini 1.5 used the older google_search_retrieval shape; 2.0+ uses the | |
| 10961 | - // bare google_search tool. Branch by model family so a future 1.5 id still | |
| 10962 | - // grounds (no 1.5 ships today, so this resolves to google_search). The empty | |
| 10963 | - // tool config must serialize as a JSON object {}, not an array []. | |
| 10964 | - if (strpos($selected_model, 'gemini-1.5') !== false) { | |
| 10965 | - $request_payload['tools'] = [ ['google_search_retrieval' => new \stdClass()] ]; | |
| 10966 | - } else { | |
| 10967 | - $request_payload['tools'] = [ ['google_search' => new \stdClass()] ]; | |
| 10968 | - } | |
| 10969 | - } | |
| 10970 | - | |
| 10971 | - $body = json_encode($request_payload); | |
| 10972 | - | |
| 10973 | - // Prepare the API endpoint | |
| 10974 | - // Use v1beta for preview models (Gemini 3, experimental), v1 for stable models. | |
| 10975 | - // Grounding (the google_search tool) is a v1beta feature, so force v1beta whenever | |
| 10976 | - // it's active — otherwise a stable model on v1 would silently drop the tool. | |
| 10977 | - $api_version = ($grounding_active || strpos($selected_model, 'preview') !== false || strpos($selected_model, 'exp') !== false) ? 'v1beta' : 'v1'; | |
| 10978 | - $api_endpoint = 'https://generativelanguage.googleapis.com/' . $api_version . '/models/' . $selected_model . ':generateContent?key=' . $gemini_api_key; | |
| 10979 | - | |
| 10980 | - // Set up the API request | |
| 10981 | - $args = [ | |
| 10982 | - 'body' => $body, | |
| 10983 | - 'headers' => [ | |
| 10984 | - 'Content-Type' => 'application/json', | |
| 10985 | - ], | |
| 10986 | - 'timeout' => 60, | |
| 10987 | - 'redirection' => 5, | |
| 10988 | - 'blocking' => true, | |
| 10989 | - 'httpversion' => '1.0', | |
| 10990 | - 'sslverify' => true, | |
| 10991 | - ]; | |
| 10992 | - | |
| 10993 | - // Make the API request | |
| 10994 | - $response = $this->mxchat_provider_call_with_retry($api_endpoint, $args, 'gemini'); | |
| 10995 | - | |
| 10996 | - // Process the response | |
| 10997 | - if (is_wp_error($response)) { | |
| 10998 | - // plan b13282: route the transport-error string through the leak-safe helper | |
| 10999 | - // (admin-actionable, generic for visitors) instead of echoing the raw WP HTTP | |
| 11000 | - // error. http_code 0 = no HTTP response, so the helper uses the generic branch. | |
| 11001 | - return $this->mxchat_friendly_chat_error(0, $response->get_error_message(), 'Gemini'); | |
| 11002 | - } | |
| 11003 | - | |
| 11004 | - $response_body = json_decode(wp_remote_retrieve_body($response), true); | |
| 11005 | - | |
| 11006 | - // Handle potential errors in the response. Gemini surfaces errors as a | |
| 11007 | - // 200/non-200 body with an `error` envelope; route the user-facing text | |
| 11008 | - // through the leak-safe helper (admin-actionable, no visitor leak) rather | |
| 11009 | - // than echoing the raw provider message. plan 5da59a. | |
| 11010 | - if (isset($response_body['error'])) { | |
| 11011 | - //error_log('Gemini API Error: ' . json_encode($response_body['error'])); | |
| 11012 | - $gemini_error_message = isset($response_body['error']['message']) | |
| 11013 | - ? $response_body['error']['message'] | |
| 11014 | - : 'Unknown error'; | |
| 11015 | - $gemini_http_code = wp_remote_retrieve_response_code($response); | |
| 11016 | - return $this->mxchat_friendly_chat_error($gemini_http_code, $gemini_error_message, 'Gemini'); | |
| 11017 | - } | |
| 11018 | - | |
| 11019 | - // Extract the response text | |
| 11020 | - if (isset($response_body['candidates'][0]['content']['parts'][0]['text'])) { | |
| 11021 | - return trim($response_body['candidates'][0]['content']['parts'][0]['text']); | |
| 11022 | - } else { | |
| 11023 | - //error_log('Unexpected Gemini API response format: ' . json_encode($response_body)); | |
| 11024 | - return "Sorry, I couldn't process that request. The response format was unexpected."; | |
| 11025 | - } | |
| 11026 | -} | |
| 11027 | - | |
| 11028 | - | |
| 11029 | -public function test_streaming_request() { | |
| 11030 | - $options = get_option('mxchat_options', []); | |
| 11031 | - $model = $options['model'] ?? 'gpt-5.1-chat-latest'; | |
| 11032 | - | |
| 11033 | - // Detect provider from model prefix | |
| 11034 | - $provider = strtolower(explode('-', $model)[0]); | |
| 11035 | - | |
| 11036 | - $sample_prompt = 'Hello! Can you stream this response back to me?'; | |
| 11037 | - $messages = [['role' => 'user', 'content' => $sample_prompt]]; | |
| 11038 | - $headers = []; | |
| 11039 | - $body = []; | |
| 11040 | - $url = ''; | |
| 11041 | - $api_key = ''; | |
| 11042 | - | |
| 11043 | - switch ($provider) { | |
| 11044 | - case 'gpt': | |
| 11045 | - case 'o1': | |
| 11046 | - $api_key = $options['api_key'] ?? ''; | |
| 11047 | - if (empty($api_key)) return '❌ Missing API key for OpenAI'; | |
| 11048 | - $url = 'https://api.openai.com/v1/chat/completions'; | |
| 11049 | - $headers = [ | |
| 11050 | - 'Content-Type: application/json', | |
| 11051 | - 'Authorization: Bearer ' . $api_key | |
| 11052 | - ]; | |
| 11053 | - $body = [ | |
| 11054 | - 'model' => $model, | |
| 11055 | - 'messages' => $messages, | |
| 11056 | - 'stream' => true | |
| 11057 | - ]; | |
| 11058 | - break; | |
| 11059 | - | |
| 11060 | - case 'claude': | |
| 11061 | - $api_key = $options['claude_api_key'] ?? ''; | |
| 11062 | - if (empty($api_key)) return '❌ Missing API key for Claude'; | |
| 11063 | - $url = 'https://api.anthropic.com/v1/messages'; | |
| 11064 | - $headers = [ | |
| 11065 | - 'Content-Type: application/json', | |
| 11066 | - 'x-api-key: ' . $api_key, | |
| 11067 | - 'anthropic-version: 2023-06-01' | |
| 11068 | - ]; | |
| 11069 | - $body = [ | |
| 11070 | - 'model' => $model, | |
| 11071 | - 'messages' => $messages, | |
| 11072 | - 'max_tokens' => 100, | |
| 11073 | - 'stream' => true | |
| 11074 | - ]; | |
| 11075 | - break; | |
| 11076 | - | |
| 11077 | - case 'grok': | |
| 11078 | - $api_key = $options['xai_api_key'] ?? ''; | |
| 11079 | - if (empty($api_key)) return '❌ Missing API key for X.AI'; | |
| 11080 | - $url = 'https://api.x.ai/v1/chat/completions'; | |
| 11081 | - $headers = [ | |
| 11082 | - 'Content-Type: application/json', | |
| 11083 | - 'Authorization: Bearer ' . $api_key | |
| 11084 | - ]; | |
| 11085 | - $body = [ | |
| 11086 | - 'model' => $model, | |
| 11087 | - 'messages' => $messages, | |
| 11088 | - 'stream' => true | |
| 11089 | - ]; | |
| 11090 | - break; | |
| 11091 | - | |
| 11092 | - case 'deepseek': | |
| 11093 | - if (empty($deepseek_api_key)) { | |
| 11094 | - $error_response = [ | |
| 11095 | - 'error' => esc_html__('DeepSeek API key is not configured', 'mxchat'), | |
| 11096 | - 'error_code' => 'missing_deepseek_api_key' | |
| 11097 | - ]; | |
| 11098 | - if ($testing_data !== null) { | |
| 11099 | - $error_response['testing_data'] = $testing_data; | |
| 11100 | - } | |
| 11101 | - return $error_response; | |
| 11102 | - } | |
| 11103 | - if ($streaming) { | |
| 11104 | - return $this->mxchat_generate_response_deepseek_stream( | |
| 11105 | - $selected_model, | |
| 11106 | - $deepseek_api_key, | |
| 11107 | - $conversation_history, | |
| 11108 | - $relevant_content, | |
| 11109 | - $session_id, | |
| 11110 | - $testing_data // Pass testing data | |
| 11111 | - ); | |
| 11112 | - } else { | |
| 11113 | - $response = $this->mxchat_generate_response_deepseek( | |
| 11114 | - $selected_model, | |
| 11115 | - $deepseek_api_key, | |
| 11116 | - $conversation_history, | |
| 11117 | - $relevant_content, | |
| 11118 | - $session_id | |
| 11119 | - ); | |
| 11120 | - } | |
| 11121 | - break; | |
| 11122 | - | |
| 11123 | - case 'gemini': | |
| 11124 | - $api_key = $options['gemini_api_key'] ?? ''; | |
| 11125 | - if (empty($api_key)) return '❌ Missing API key for Gemini'; | |
| 11126 | - $url = 'https://generativelanguage.googleapis.com/v1beta/models/' . $model . ':streamGenerateContent?key=' . $api_key; | |
| 11127 | - $headers = ['Content-Type: application/json']; | |
| 11128 | - $body = [ | |
| 11129 | - 'contents' => [['role' => 'user', 'parts' => [['text' => $sample_prompt]]]], | |
| 11130 | - 'generationConfig' => ['temperature' => 0.7] | |
| 11131 | - ]; | |
| 11132 | - break; | |
| 11133 | - | |
| 11134 | - default: | |
| 11135 | - return '❌ Unsupported provider: ' . $provider; | |
| 11136 | - } | |
| 11137 | - | |
| 11138 | - // Do the actual streaming test | |
| 11139 | - $ch = curl_init($url); | |
| 11140 | - curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($body)); | |
| 11141 | - curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); | |
| 11142 | - curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); | |
| 11143 | - curl_setopt($ch, CURLOPT_TIMEOUT, 15); | |
| 11144 | - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true); | |
| 11145 | - | |
| 11146 | - $response = curl_exec($ch); | |
| 11147 | - $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); | |
| 11148 | - $error = curl_error($ch); | |
| 11149 | - curl_close($ch); | |
| 11150 | - | |
| 11151 | - if ($error) return "❌ cURL error: $error"; | |
| 11152 | - if ($http_code !== 200) { | |
| 11153 | - $error_message = json_decode($response, true)['error']['message'] ?? 'Unknown'; | |
| 11154 | - return "❌ HTTP $http_code: $error_message"; | |
| 11155 | - } | |
| 11156 | - | |
| 11157 | - return true; | |
| 11158 | -} | |
| 11159 | - | |
| 11160 | -public function mxchat_dismiss_pre_chat_message() { | |
| 11161 | - // Get and sanitize the user identifier | |
| 11162 | - $user_id = $this->mxchat_get_user_identifier(); | |
| 11163 | - $user_id = sanitize_key($user_id); | |
| 11164 | - | |
| 11165 | - // Set a transient to track that the user has dismissed the pre-chat message | |
| 11166 | - $transient_key = 'mxchat_pre_chat_message_dismissed_' . $user_id; | |
| 11167 | - set_transient($transient_key, true, DAY_IN_SECONDS); | |
| 11168 | - | |
| 11169 | - wp_send_json_success(); | |
| 11170 | -} | |
| 11171 | - | |
| 11172 | -public function mxchat_check_pre_chat_message_status() { | |
| 11173 | - // Get and sanitize the user identifier | |
| 11174 | - $user_id = $this->mxchat_get_user_identifier(); | |
| 11175 | - $user_id = sanitize_key($user_id); | |
| 11176 | - | |
| 11177 | - // Check if the transient exists (i.e., if the message was dismissed) | |
| 11178 | - $transient_key = 'mxchat_pre_chat_message_dismissed_' . $user_id; | |
| 11179 | - $dismissed = get_transient($transient_key); | |
| 11180 | - | |
| 11181 | - // Log the result to see if it's being set correctly | |
| 11182 | - //error_log("Check pre-chat message dismissed for $user_id: " . ($dismissed ? 'Yes' : 'No')); | |
| 11183 | - | |
| 11184 | - if ($dismissed) { | |
| 11185 | - wp_send_json_success(['dismissed' => true]); | |
| 11186 | - } else { | |
| 11187 | - wp_send_json_success(['dismissed' => false]); | |
| 11188 | - } | |
| 11189 | - | |
| 11190 | - wp_die(); | |
| 11191 | -} | |
| 11192 | - | |
| 11193 | -private function mxchat_calculate_cosine_similarity($vectorA, $vectorB) { | |
| 11194 | - if (!is_array($vectorA) || !is_array($vectorB) || empty($vectorA) || empty($vectorB)) { | |
| 11195 | - return 0; | |
| 11196 | - } | |
| 11197 | - | |
| 11198 | - $dotProduct = array_sum(array_map(function ($a, $b) { | |
| 11199 | - return $a * $b; | |
| 11200 | - }, $vectorA, $vectorB)); | |
| 11201 | - $normA = sqrt(array_sum(array_map(function ($a) { | |
| 11202 | - return $a * $a; | |
| 11203 | - }, $vectorA))); | |
| 11204 | - $normB = sqrt(array_sum(array_map(function ($b) { | |
| 11205 | - return $b * $b; | |
| 11206 | - }, $vectorB))); | |
| 11207 | - | |
| 11208 | - if ($normA == 0 || $normB == 0) { | |
| 11209 | - return 0; | |
| 11210 | - } | |
| 11211 | - | |
| 11212 | - return $dotProduct / ($normA * $normB); | |
| 11213 | - } | |
| 11214 | - | |
| 11215 | - | |
| 11216 | -public function mxchat_enqueue_scripts_styles() { | |
| 11217 | - // Fetch options from the database first to check loading strategy | |
| 11218 | - $this->options = get_option('mxchat_options'); | |
| 11219 | - $loading_strategy = isset($this->options['script_loading_strategy']) ? $this->options['script_loading_strategy'] : 'default'; | |
| 11220 | - | |
| 11221 | - // Always enqueue CSS immediately | |
| 11222 | - wp_enqueue_style( | |
| 11223 | - 'mxchat-chat-css', | |
| 11224 | - plugin_dir_url(__FILE__) . '../css/chat-style.css', | |
| 11225 | - array(), | |
| 11226 | - MXCHAT_VERSION | |
| 11227 | - ); | |
| 11228 | - | |
| 11229 | - // Handle script loading based on strategy | |
| 11230 | - if ($loading_strategy === 'default' || $loading_strategy === 'defer') { | |
| 11231 | - // Enqueue the script normally | |
| 11232 | - wp_enqueue_script( | |
| 11233 | - 'mxchat-chat-js', | |
| 11234 | - plugin_dir_url(__FILE__) . '../js/chat-script.js', | |
| 11235 | - array('jquery'), | |
| 11236 | - MXCHAT_VERSION, | |
| 11237 | - true | |
| 11238 | - ); | |
| 11239 | - | |
| 11240 | - // Add defer attribute if strategy is 'defer' | |
| 11241 | - if ($loading_strategy === 'defer') { | |
| 11242 | - wp_script_add_data('mxchat-chat-js', 'strategy', 'defer'); | |
| 11243 | - } | |
| 11244 | - } else { | |
| 11245 | - // For delay or interaction-based loading, we'll use a custom loader | |
| 11246 | - // Don't enqueue the main script - we'll load it dynamically | |
| 11247 | - add_action('wp_footer', array($this, 'mxchat_output_delayed_script_loader'), 99); | |
| 11248 | - } | |
| 11249 | - | |
| 11250 | - $prompts_options = get_option('mxchat_prompts_options', array()); | |
| 11251 | - | |
| 11252 | - // Check if AI theme is active - if so, skip inline colors in JavaScript | |
| 11253 | - $theme_options = get_option('mxchat_theme_options', array()); | |
| 11254 | - $ai_theme_active = !empty($theme_options['active_ai_theme_css']); | |
| 11255 | - $has_bot_theme_assignments = !empty($theme_options['bot_theme_assignments']); | |
| 11256 | - $skip_inline_colors = $ai_theme_active || $has_bot_theme_assignments; | |
| 11257 | - | |
| 11258 | - // Prepare settings for JavaScript | |
| 11259 | - $style_settings = array( | |
| 11260 | - 'ajax_url' => admin_url('admin-ajax.php'), | |
| 11261 | - // The chat-send nonce is now fetched per-request from /wp-json/mxchat/v1/nonce | |
| 11262 | - // (plan-6a68c9) so it never sits in cached HTML. We still emit a nonce here | |
| 11263 | - // as a one-shot fallback for the first interaction on a fresh page load | |
| 11264 | - // (so the very first chat-send doesn't need to wait for a REST round-trip), | |
| 11265 | - // but the widget refetches before each subsequent send. | |
| 11266 | - 'nonce' => wp_create_nonce('mxchat_chat_send'), | |
| 11267 | - 'rest_url' => esc_url_raw(trailingslashit(rest_url('mxchat/v1'))), | |
| 11268 | - 'contextual_awareness_toggle' => isset($this->options['contextual_awareness_toggle']) ? $this->options['contextual_awareness_toggle'] : 'off', | |
| 11269 | - 'link_target_toggle' => $this->options['link_target_toggle'] ?? 'off', | |
| 11270 | - 'complianz_toggle' => isset($this->options['complianz_toggle']) && $this->options['complianz_toggle'] === 'on', | |
| 11271 | - 'user_message_bg_color' => $this->options['user_message_bg_color'] ?? '#fff', | |
| 11272 | - 'user_message_font_color' => $this->options['user_message_font_color'] ?? '#212121', | |
| 11273 | - 'bot_message_bg_color' => $this->options['bot_message_bg_color'] ?? '#212121', | |
| 11274 | - 'bot_message_font_color' => $this->options['bot_message_font_color'] ?? '#fff', | |
| 11275 | - 'top_bar_bg_color' => $this->options['top_bar_bg_color'] ?? '#212121', | |
| 11276 | - 'send_button_font_color' => $this->options['send_button_font_color'] ?? '#212121', | |
| 11277 | - 'close_button_color' => $this->options['close_button_color'] ?? '#fff', | |
| 11278 | - 'chatbot_background_color' => $this->options['chatbot_background_color'] ?? '#212121', | |
| 11279 | - 'chatbot_bg_color' => $this->options['chatbot_bg_color'] ?? '#fff', | |
| 11280 | - 'icon_color' => $this->options['icon_color'] ?? '#fff', | |
| 11281 | - 'chat_input_font_color' => $this->options['chat_input_font_color'] ?? '#212121', | |
| 11282 | - 'chat_persistence_toggle' => $this->options['chat_persistence_toggle'] ?? 'off', | |
| 11283 | - 'appendWidgetToBody' => $this->options['append_to_body'] ?? 'off', | |
| 11284 | - 'live_agent_message_bg_color' => $this->options['live_agent_message_bg_color'] ?? '#ffffff', | |
| 11285 | - 'live_agent_message_font_color' => $this->options['live_agent_message_font_color'] ?? '#333333', | |
| 11286 | - 'mode_indicator_bg_color' => $this->options['mode_indicator_bg_color'] ?? '#767676', | |
| 11287 | - 'mode_indicator_font_color' => $this->options['mode_indicator_font_color'] ?? '#ffffff', | |
| 11288 | - 'toolbar_icon_color' => $this->options['toolbar_icon_color'] ?? '#212121', | |
| 11289 | - 'use_pinecone' => $prompts_options['mxchat_use_pinecone'] ?? '0', | |
| 11290 | - 'email_collection_enabled' => $this->options['enable_email_block'] ?? 'off', // FIXED | |
| 11291 | - 'initial_email_state' => null, // Also fixed this undefined variable | |
| 11292 | - 'skip_email_check' => true, | |
| 11293 | - 'pinecone_enabled' => isset($prompts_options['mxchat_use_pinecone']) && $prompts_options['mxchat_use_pinecone'] === '1', | |
| 11294 | - 'skip_inline_colors' => $skip_inline_colors, | |
| 11295 | - 'bot_theme_assignments' => $theme_options['bot_theme_assignments'] ?? array(), | |
| 11296 | - ); | |
| 11297 | - | |
| 11298 | - // Behavior gates + labels (model, streaming, rate-limit copy, toolbar, | |
| 11299 | - // print/transcript, satisfaction rating) come from the shared | |
| 11300 | - // dynamic-settings method so this inline payload and the first-open | |
| 11301 | - // refresh endpoint can never drift (plan-32db95). | |
| 11302 | - $style_settings = array_merge($style_settings, $this->get_dynamic_widget_settings()); | |
| 11303 | - | |
| 11304 | - // For normal/defer loading, use wp_localize_script | |
| 11305 | - // For delayed loading, we store settings in a transient to be output inline | |
| 11306 | - if ($loading_strategy === 'default' || $loading_strategy === 'defer') { | |
| 11307 | - wp_localize_script('mxchat-chat-js', 'mxchatChat', $style_settings); | |
| 11308 | - } else { | |
| 11309 | - // Store settings for the delayed loader to use | |
| 11310 | - set_transient('mxchat_delayed_settings_' . get_current_user_id(), $style_settings, 60); | |
| 11311 | - } | |
| 11312 | -} | |
| 11313 | - | |
| 11314 | -/** | |
| 11315 | - * Output the delayed script loader for performance optimization | |
| 11316 | - */ | |
| 11317 | -public function mxchat_output_delayed_script_loader() { | |
| 11318 | - $this->options = get_option('mxchat_options'); | |
| 11319 | - $loading_strategy = isset($this->options['script_loading_strategy']) ? $this->options['script_loading_strategy'] : 'default'; | |
| 11320 | - $script_url = plugin_dir_url(__FILE__) . '../js/chat-script.js?ver=' . MXCHAT_VERSION; | |
| 11321 | - | |
| 11322 | - // Get the stored settings | |
| 11323 | - $prompts_options = get_option('mxchat_prompts_options', array()); | |
| 11324 | - $theme_options = get_option('mxchat_theme_options', array()); | |
| 11325 | - $ai_theme_active = !empty($theme_options['active_ai_theme_css']); | |
| 11326 | - $has_bot_theme_assignments = !empty($theme_options['bot_theme_assignments']); | |
| 11327 | - $skip_inline_colors = $ai_theme_active || $has_bot_theme_assignments; | |
| 11328 | - | |
| 11329 | - $style_settings = array( | |
| 11330 | - 'ajax_url' => admin_url('admin-ajax.php'), | |
| 11331 | - // Per-request nonce — see plan-6a68c9; widget fetches via /wp-json/mxchat/v1/nonce | |
| 11332 | - // before each send. This inline value is a one-shot fallback for the first interaction. | |
| 11333 | - 'nonce' => wp_create_nonce('mxchat_chat_send'), | |
| 11334 | - 'rest_url' => esc_url_raw(trailingslashit(rest_url('mxchat/v1'))), | |
| 11335 | - 'contextual_awareness_toggle' => isset($this->options['contextual_awareness_toggle']) ? $this->options['contextual_awareness_toggle'] : 'off', | |
| 11336 | - 'link_target_toggle' => $this->options['link_target_toggle'] ?? 'off', | |
| 11337 | - 'complianz_toggle' => isset($this->options['complianz_toggle']) && $this->options['complianz_toggle'] === 'on', | |
| 11338 | - 'user_message_bg_color' => $this->options['user_message_bg_color'] ?? '#fff', | |
| 11339 | - 'user_message_font_color' => $this->options['user_message_font_color'] ?? '#212121', | |
| 11340 | - 'bot_message_bg_color' => $this->options['bot_message_bg_color'] ?? '#212121', | |
| 11341 | - 'bot_message_font_color' => $this->options['bot_message_font_color'] ?? '#fff', | |
| 11342 | - 'top_bar_bg_color' => $this->options['top_bar_bg_color'] ?? '#212121', | |
| 11343 | - 'send_button_font_color' => $this->options['send_button_font_color'] ?? '#212121', | |
| 11344 | - 'close_button_color' => $this->options['close_button_color'] ?? '#fff', | |
| 11345 | - 'chatbot_background_color' => $this->options['chatbot_background_color'] ?? '#212121', | |
| 11346 | - 'chatbot_bg_color' => $this->options['chatbot_bg_color'] ?? '#fff', | |
| 11347 | - 'icon_color' => $this->options['icon_color'] ?? '#fff', | |
| 11348 | - 'chat_input_font_color' => $this->options['chat_input_font_color'] ?? '#212121', | |
| 11349 | - 'chat_persistence_toggle' => $this->options['chat_persistence_toggle'] ?? 'off', | |
| 11350 | - 'appendWidgetToBody' => $this->options['append_to_body'] ?? 'off', | |
| 11351 | - 'live_agent_message_bg_color' => $this->options['live_agent_message_bg_color'] ?? '#ffffff', | |
| 11352 | - 'live_agent_message_font_color' => $this->options['live_agent_message_font_color'] ?? '#333333', | |
| 11353 | - 'mode_indicator_bg_color' => $this->options['mode_indicator_bg_color'] ?? '#767676', | |
| 11354 | - 'mode_indicator_font_color' => $this->options['mode_indicator_font_color'] ?? '#ffffff', | |
| 11355 | - 'toolbar_icon_color' => $this->options['toolbar_icon_color'] ?? '#212121', | |
| 11356 | - 'use_pinecone' => $prompts_options['mxchat_use_pinecone'] ?? '0', | |
| 11357 | - 'email_collection_enabled' => $this->options['enable_email_block'] ?? 'off', | |
| 11358 | - 'initial_email_state' => null, | |
| 11359 | - 'skip_email_check' => true, | |
| 11360 | - 'pinecone_enabled' => isset($prompts_options['mxchat_use_pinecone']) && $prompts_options['mxchat_use_pinecone'] === '1', | |
| 11361 | - 'skip_inline_colors' => $skip_inline_colors, | |
| 11362 | - 'bot_theme_assignments' => $theme_options['bot_theme_assignments'] ?? array(), | |
| 11363 | - ); | |
| 11364 | - | |
| 11365 | - // Behavior gates + labels (model, streaming, rate-limit copy, toolbar, | |
| 11366 | - // print/transcript, satisfaction rating) come from the shared | |
| 11367 | - // dynamic-settings method so this inline payload and the first-open | |
| 11368 | - // refresh endpoint can never drift (plan-32db95). | |
| 11369 | - $style_settings = array_merge($style_settings, $this->get_dynamic_widget_settings()); | |
| 11370 | - | |
| 11371 | - // Determine delay time based on strategy | |
| 11372 | - $delay_ms = 0; | |
| 11373 | - switch ($loading_strategy) { | |
| 11374 | - case 'delay_1s': | |
| 11375 | - $delay_ms = 1000; | |
| 11376 | - break; | |
| 11377 | - case 'delay_3s': | |
| 11378 | - $delay_ms = 3000; | |
| 11379 | - break; | |
| 11380 | - case 'delay_5s': | |
| 11381 | - $delay_ms = 5000; | |
| 11382 | - break; | |
| 11383 | - } | |
| 11384 | - | |
| 11385 | - ?> | |
| 11386 | - <script type="text/javascript"> | |
| 11387 | - (function() { | |
| 11388 | - var mxchatLoaded = false; | |
| 11389 | - var mxchatChat = <?php echo wp_json_encode($style_settings); ?>; | |
| 11390 | - window.mxchatChat = mxchatChat; | |
| 11391 | - | |
| 11392 | - function loadMxChatScript() { | |
| 11393 | - if (mxchatLoaded) return; | |
| 11394 | - mxchatLoaded = true; | |
| 11395 | - | |
| 11396 | - function appendChatScript() { | |
| 11397 | - var script = document.createElement('script'); | |
| 11398 | - script.src = <?php echo wp_json_encode($script_url); ?>; | |
| 11399 | - script.type = 'text/javascript'; | |
| 11400 | - document.body.appendChild(script); | |
| 11401 | - } | |
| 11402 | - | |
| 11403 | - if (typeof jQuery !== 'undefined') { | |
| 11404 | - appendChatScript(); | |
| 11405 | - } else { | |
| 11406 | - var jq = document.createElement('script'); | |
| 11407 | - jq.src = <?php echo wp_json_encode(includes_url('js/jquery/jquery.min.js')); ?>; | |
| 11408 | - jq.onload = appendChatScript; | |
| 11409 | - document.body.appendChild(jq); | |
| 11410 | - } | |
| 11411 | - } | |
| 11412 | - | |
| 11413 | - <?php if ($loading_strategy === 'on_interaction'): ?> | |
| 11414 | - // Load on user interaction | |
| 11415 | - var events = ['scroll', 'mousemove', 'touchstart', 'keydown', 'click']; | |
| 11416 | - events.forEach(function(evt) { | |
| 11417 | - window.addEventListener(evt, loadMxChatScript, {once: true, passive: true}); | |
| 11418 | - }); | |
| 11419 | - // Fallback: load after 8 seconds if no interaction | |
| 11420 | - setTimeout(loadMxChatScript, 8000); | |
| 11421 | - <?php else: ?> | |
| 11422 | - // Load after specified delay | |
| 11423 | - setTimeout(loadMxChatScript, <?php echo intval($delay_ms); ?>); | |
| 11424 | - <?php endif; ?> | |
| 11425 | - })(); | |
| 11426 | - </script> | |
| 11427 | - <?php | |
| 11428 | -} | |
| 11429 | - | |
| 11430 | -/** | |
| 11431 | - * Setup the cron jobs for rate limits with guard against multiple calls | |
| 11432 | - */ | |
| 11433 | -public function setup_rate_limit_cron_jobs() { | |
| 11434 | - // Add a guard to prevent multiple rapid calls | |
| 11435 | - $last_setup = get_transient('mxchat_cron_setup_guard'); | |
| 11436 | - if ($last_setup && (time() - $last_setup) < 60) { | |
| 11437 | - // Don't run again if we ran less than 60 seconds ago | |
| 11438 | - return; | |
| 11439 | - } | |
| 11440 | - | |
| 11441 | - // Set the guard | |
| 11442 | - set_transient('mxchat_cron_setup_guard', time(), 300); // 5 minutes | |
| 11443 | - | |
| 11444 | - try { | |
| 11445 | - // First, check if WordPress cron is disabled | |
| 11446 | - if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) { | |
| 11447 | - //error_log('MxChat: WordPress cron is disabled (DISABLE_WP_CRON = true), using fallback system'); | |
| 11448 | - $this->setup_fallback_rate_limit_system(); | |
| 11449 | - return; | |
| 11450 | - } | |
| 11451 | - | |
| 11452 | - // Check if cron is already scheduled - if so, don't mess with it | |
| 11453 | - if (wp_next_scheduled('mxchat_reset_rate_limits')) { | |
| 11454 | - //error_log('MxChat: Rate limit cron already scheduled, skipping setup'); | |
| 11455 | - return; | |
| 11456 | - } | |
| 11457 | - | |
| 11458 | - // Clear any orphaned hooks (but don't loop indefinitely) | |
| 11459 | - $hooks_to_clear = [ | |
| 11460 | - 'mxchat_reset_rate_limits', | |
| 11461 | - 'mxchat_reset_hourly_rate_limits', | |
| 11462 | - 'mxchat_reset_daily_rate_limits', | |
| 11463 | - 'mxchat_reset_weekly_rate_limits', | |
| 11464 | - 'mxchat_reset_monthly_rate_limits' | |
| 11465 | - ]; | |
| 11466 | - | |
| 11467 | - foreach ($hooks_to_clear as $hook) { | |
| 11468 | - // Only clear a maximum of 3 instances to prevent infinite loops | |
| 11469 | - $cleared = 0; | |
| 11470 | - while (wp_next_scheduled($hook) && $cleared < 3) { | |
| 11471 | - wp_clear_scheduled_hook($hook); | |
| 11472 | - $cleared++; | |
| 11473 | - } | |
| 11474 | - } | |
| 11475 | - | |
| 11476 | - // Small delay after clearing | |
| 11477 | - usleep(100000); // 0.1 seconds | |
| 11478 | - | |
| 11479 | - // Try to schedule the event | |
| 11480 | - $initial_time = time() + 300; // Start in 5 minutes | |
| 11481 | - $result = wp_schedule_event($initial_time, 'hourly', 'mxchat_reset_rate_limits'); | |
| 11482 | - | |
| 11483 | - if ($result === false) { | |
| 11484 | - //error_log('MxChat: Failed to schedule cron, using fallback system'); | |
| 11485 | - $this->setup_fallback_rate_limit_system(); | |
| 11486 | - } else { | |
| 11487 | - //error_log('MxChat: Successfully scheduled rate limit reset cron'); | |
| 11488 | - } | |
| 11489 | - | |
| 11490 | - } catch (Exception $e) { | |
| 11491 | - //error_log('MxChat: Cron setup exception: ' . $e->getMessage()); | |
| 11492 | - $this->setup_fallback_rate_limit_system(); | |
| 11493 | - } | |
| 11494 | -} | |
| 11495 | - | |
| 11496 | -/** | |
| 11497 | - * Try alternative cron scheduling methods | |
| 11498 | - */ | |
| 11499 | -private function try_alternative_cron_scheduling($initial_time) { | |
| 11500 | - try { | |
| 11501 | - // Method 1: Try with current time instead of future time | |
| 11502 | - $result1 = wp_schedule_event(time(), 'hourly', 'mxchat_reset_rate_limits'); | |
| 11503 | - if ($result1 !== false) { | |
| 11504 | - //error_log('MxChat: Alternative method 1 (current time) succeeded'); | |
| 11505 | - return true; | |
| 11506 | - } | |
| 11507 | - | |
| 11508 | - // Method 2: Try with a different interval | |
| 11509 | - $result2 = wp_schedule_event($initial_time, 'daily', 'mxchat_reset_rate_limits'); | |
| 11510 | - if ($result2 !== false) { | |
| 11511 | - //error_log('MxChat: Alternative method 2 (daily interval) succeeded'); | |
| 11512 | - return true; | |
| 11513 | - } | |
| 11514 | - | |
| 11515 | - // Method 3: Try wp_schedule_single_event first, then recurring | |
| 11516 | - $result3 = wp_schedule_single_event($initial_time, 'mxchat_reset_rate_limits'); | |
| 11517 | - if ($result3 !== false) { | |
| 11518 | - //error_log('MxChat: Alternative method 3 (single event) succeeded'); | |
| 11519 | - // Schedule the next one manually in the handler | |
| 11520 | - return true; | |
| 11521 | - } | |
| 11522 | - | |
| 11523 | - return false; | |
| 11524 | - | |
| 11525 | - } catch (Exception $e) { | |
| 11526 | - //error_log('MxChat: Alternative cron scheduling exception: ' . $e->getMessage()); | |
| 11527 | - return false; | |
| 11528 | - } | |
| 11529 | -} | |
| 11530 | - | |
| 11531 | -/** | |
| 11532 | - * Enhanced fallback rate limit system | |
| 11533 | - */ | |
| 11534 | -private function setup_fallback_rate_limit_system() { | |
| 11535 | - // Set a flag to use database-based rate limit cleanup | |
| 11536 | - update_option('mxchat_use_fallback_rate_limits', true); | |
| 11537 | - | |
| 11538 | - // Schedule a one-time check to happen on the next plugin load | |
| 11539 | - update_option('mxchat_next_rate_limit_check', time() + 3600); | |
| 11540 | - | |
| 11541 | - // Also set up a more frequent fallback check (every 4 hours) | |
| 11542 | - update_option('mxchat_fallback_check_interval', 4 * 3600); | |
| 11543 | - | |
| 11544 | - //error_log('MxChat: Fallback rate limit system activated'); | |
| 11545 | -} | |
| 11546 | - | |
| 11547 | -/** | |
| 11548 | - * Enhanced fallback check method | |
| 11549 | - */ | |
| 11550 | -public function check_fallback_rate_limits() { | |
| 11551 | - $use_fallback = get_option('mxchat_use_fallback_rate_limits', false); | |
| 11552 | - | |
| 11553 | - if (!$use_fallback) { | |
| 11554 | - return; // Regular cron is working | |
| 11555 | - } | |
| 11556 | - | |
| 11557 | - $next_check = get_option('mxchat_next_rate_limit_check', 0); | |
| 11558 | - $check_interval = get_option('mxchat_fallback_check_interval', 3600); | |
| 11559 | - | |
| 11560 | - if (time() >= $next_check) { | |
| 11561 | - //error_log('MxChat: Running fallback rate limit cleanup'); | |
| 11562 | - $this->mxchat_reset_rate_limits(); | |
| 11563 | - | |
| 11564 | - // Schedule next check | |
| 11565 | - update_option('mxchat_next_rate_limit_check', time() + $check_interval); | |
| 11566 | - } | |
| 11567 | -} | |
| 11568 | -/** | |
| 11569 | - * Enhanced rate limit check that includes fallback cleanup and bot-specific rate limits | |
| 11570 | - */ | |
| 11571 | -public function check_rate_limit() { | |
| 11572 | - // Check if we need to run fallback cleanup | |
| 11573 | - $use_fallback = get_option('mxchat_use_fallback_rate_limits', false); | |
| 11574 | - $next_check = get_option('mxchat_next_rate_limit_check', 0); | |
| 11575 | - | |
| 11576 | - if ($use_fallback && time() >= $next_check) { | |
| 11577 | - $this->mxchat_reset_rate_limits(); | |
| 11578 | - update_option('mxchat_next_rate_limit_check', time() + 3600); // Next hour | |
| 11579 | - } | |
| 11580 | - | |
| 11581 | - // Get bot ID from current request context | |
| 11582 | - $bot_id = isset($_POST['bot_id']) ? sanitize_key($_POST['bot_id']) : 'default'; | |
| 11583 | - | |
| 11584 | - // Get bot-specific options (includes rate limits if overridden) | |
| 11585 | - $bot_options = $this->get_bot_options($bot_id); | |
| 11586 | - $current_options = !empty($bot_options) ? $bot_options : $this->options; | |
| 11587 | - | |
| 11588 | - // Use bot-specific rate limits if available, otherwise fall back to default | |
| 11589 | - $rate_limits_source = isset($current_options['rate_limits']) ? $current_options['rate_limits'] : get_option('mxchat_options', [])['rate_limits'] ?? []; | |
| 11590 | - | |
| 11591 | - // ------------------------------------------------------------------- | |
| 11592 | - // Whole-chatbot global cap (independent of role). Evaluated FIRST so | |
| 11593 | - // it acts as a hard ceiling across all users + all roles. Default is | |
| 11594 | - // 'unlimited' so existing installs are unchanged. Counter key drops | |
| 11595 | - // both <role> and <user_id> segments — single pool per bot. | |
| 11596 | - // ------------------------------------------------------------------- | |
| 11597 | - $global_cfg = isset($current_options['rate_limits_global']) && is_array($current_options['rate_limits_global']) | |
| 11598 | - ? $current_options['rate_limits_global'] | |
| 11599 | - : (isset(get_option('mxchat_options', [])['rate_limits_global']) ? get_option('mxchat_options', [])['rate_limits_global'] : []); | |
| 11600 | - $global_limit_raw = isset($global_cfg['limit']) ? (string) $global_cfg['limit'] : 'unlimited'; | |
| 11601 | - $global_timeframe = isset($global_cfg['timeframe']) ? (string) $global_cfg['timeframe'] : 'daily'; | |
| 11602 | - if ($global_limit_raw !== '' && $global_limit_raw !== 'unlimited' && (int) $global_limit_raw >= 1) { | |
| 11603 | - $bot_id_for_global = isset($_POST['bot_id']) ? sanitize_key($_POST['bot_id']) : 'default'; | |
| 11604 | - $safe_bot_global = preg_replace('/[^a-zA-Z0-9_]/', '_', $bot_id_for_global); | |
| 11605 | - $global_option = 'mxchat_chat_limit_' . $safe_bot_global . '_global'; | |
| 11606 | - $global_data = get_option($global_option, ['count' => 0, 'timestamp' => time()]); | |
| 11607 | - if ((int) $global_data['count'] === 0) { | |
| 11608 | - $global_data['timestamp'] = time(); | |
| 11609 | - update_option($global_option, $global_data); | |
| 11610 | - } | |
| 11611 | - $now = time(); | |
| 11612 | - $ts = (int) $global_data['timestamp']; | |
| 11613 | - $reset = false; | |
| 11614 | - switch ($global_timeframe) { | |
| 11615 | - case 'hourly': $reset = ($now - $ts) >= 3600; break; | |
| 11616 | - case 'daily': $reset = ($now - $ts) >= 86400; break; | |
| 11617 | - case 'weekly': $reset = ($now - $ts) >= 604800; break; | |
| 11618 | - case 'monthly': $reset = ($now - $ts) >= 2592000; break; | |
| 11619 | - } | |
| 11620 | - if ($reset) { | |
| 11621 | - $global_data = ['count' => 0, 'timestamp' => $now]; | |
| 11622 | - update_option($global_option, $global_data); | |
| 11623 | - } | |
| 11624 | - if ((int) $global_data['count'] >= (int) $global_limit_raw) { | |
| 11625 | - $global_msg = !empty($global_cfg['message']) | |
| 11626 | - ? $global_cfg['message'] | |
| 11627 | - : __('This chatbot has reached its message limit. Please try again later.', 'mxchat'); | |
| 11628 | - return [ | |
| 11629 | - 'error' => true, | |
| 11630 | - 'message' => $this->process_rate_limit_message_html($global_msg), | |
| 11631 | - ]; | |
| 11632 | - } | |
| 11633 | - // Reserve the slot for this request. Per-role check below also increments | |
| 11634 | - // its own counter — that is intentional, both ceilings apply independently. | |
| 11635 | - $global_data['count']++; | |
| 11636 | - update_option($global_option, $global_data); | |
| 11637 | - } | |
| 11638 | - | |
| 11639 | - // Determine user role or if logged out | |
| 11640 | - if (is_user_logged_in()) { | |
| 11641 | - $user = wp_get_current_user(); | |
| 11642 | - $user_id = $user->ID; | |
| 11643 | - | |
| 11644 | - // Get the user's primary role using reset() to safely get the first element | |
| 11645 | - $user_roles = $user->roles; | |
| 11646 | - | |
| 11647 | - // Safely get the first role regardless of array key structure | |
| 11648 | - if (!empty($user_roles) && is_array($user_roles)) { | |
| 11649 | - $role = reset($user_roles); // This safely gets the first element regardless of key | |
| 11650 | - } else { | |
| 11651 | - $role = 'subscriber'; // Default to subscriber if no role found | |
| 11652 | - } | |
| 11653 | - } else { | |
| 11654 | - $role = 'logged_out'; | |
| 11655 | - // Use IP address for non-logged-in users | |
| 11656 | - $user_id = $this->get_client_ip(); | |
| 11657 | - } | |
| 11658 | - | |
| 11659 | - // Check if rate limits are configured for this role | |
| 11660 | - if (!isset($rate_limits_source[$role])) { | |
| 11661 | - return true; // No limit set for this role | |
| 11662 | - } | |
| 11663 | - | |
| 11664 | - $limit = $rate_limits_source[$role]['limit']; | |
| 11665 | - | |
| 11666 | - // If unlimited, return true immediately | |
| 11667 | - if ($limit === 'unlimited') { | |
| 11668 | - return true; | |
| 11669 | - } | |
| 11670 | - | |
| 11671 | - // Get the option name for this user/role with safer naming (include bot_id for bot-specific limits) | |
| 11672 | - $safe_role = preg_replace('/[^a-zA-Z0-9_]/', '_', $role); | |
| 11673 | - $safe_user_id = preg_replace('/[^a-zA-Z0-9_]/', '_', $user_id); | |
| 11674 | - $safe_bot_id = preg_replace('/[^a-zA-Z0-9_]/', '_', $bot_id); | |
| 11675 | - | |
| 11676 | - // Include bot_id in option name so each bot has separate rate limits | |
| 11677 | - $option_name = 'mxchat_chat_limit_' . $safe_bot_id . '_' . $safe_role . '_' . $safe_user_id; | |
| 11678 | - | |
| 11679 | - // Get the counter data | |
| 11680 | - $limit_data = get_option($option_name, ['count' => 0, 'timestamp' => time()]); | |
| 11681 | - | |
| 11682 | - // If first request or counter reset needed, set the initial timestamp | |
| 11683 | - if ($limit_data['count'] === 0) { | |
| 11684 | - $limit_data['timestamp'] = time(); | |
| 11685 | - update_option($option_name, $limit_data); | |
| 11686 | - } | |
| 11687 | - | |
| 11688 | - // Get the timeframe | |
| 11689 | - $timeframe = isset($rate_limits_source[$role]['timeframe']) ? | |
| 11690 | - $rate_limits_source[$role]['timeframe'] : 'daily'; | |
| 11691 | - | |
| 11692 | - // Check if the counter needs to be reset based on timeframe | |
| 11693 | - $current_time = time(); | |
| 11694 | - $timestamp = $limit_data['timestamp']; | |
| 11695 | - $should_reset = false; | |
| 11696 | - | |
| 11697 | - switch ($timeframe) { | |
| 11698 | - case 'hourly': | |
| 11699 | - $should_reset = ($current_time - $timestamp) >= 3600; // 1 hour | |
| 11700 | - break; | |
| 11701 | - case 'daily': | |
| 11702 | - $should_reset = ($current_time - $timestamp) >= 86400; // 24 hours | |
| 11703 | - break; | |
| 11704 | - case 'weekly': | |
| 11705 | - $should_reset = ($current_time - $timestamp) >= 604800; // 7 days | |
| 11706 | - break; | |
| 11707 | - case 'monthly': | |
| 11708 | - $should_reset = ($current_time - $timestamp) >= 2592000; // 30 days | |
| 11709 | - break; | |
| 11710 | - } | |
| 11711 | - | |
| 11712 | - // Reset the counter if the timeframe has passed | |
| 11713 | - if ($should_reset) { | |
| 11714 | - $limit_data = ['count' => 0, 'timestamp' => $current_time]; | |
| 11715 | - update_option($option_name, $limit_data); | |
| 11716 | - } | |
| 11717 | - | |
| 11718 | - // Check if user has exceeded their limit | |
| 11719 | - if ($limit_data['count'] >= intval($limit)) { | |
| 11720 | - // Get the custom message for this role | |
| 11721 | - $message = !empty($rate_limits_source[$role]['message']) | |
| 11722 | - ? $rate_limits_source[$role]['message'] | |
| 11723 | - : __('Rate limit exceeded. Please try again later.', 'mxchat'); | |
| 11724 | - | |
| 11725 | - // Add timeframe information to the message if placeholders exist | |
| 11726 | - $timeframe_label = ''; | |
| 11727 | - switch ($timeframe) { | |
| 11728 | - case 'hourly': | |
| 11729 | - $timeframe_label = __('hour', 'mxchat'); | |
| 11730 | - break; | |
| 11731 | - case 'daily': | |
| 11732 | - $timeframe_label = __('day', 'mxchat'); | |
| 11733 | - break; | |
| 11734 | - case 'weekly': | |
| 11735 | - $timeframe_label = __('week', 'mxchat'); | |
| 11736 | - break; | |
| 11737 | - case 'monthly': | |
| 11738 | - $timeframe_label = __('month', 'mxchat'); | |
| 11739 | - break; | |
| 11740 | - } | |
| 11741 | - | |
| 11742 | - // Replace placeholders in the message | |
| 11743 | - $message = str_replace( | |
| 11744 | - ['{limit}', '{count}', '{remaining}', '{timeframe}'], | |
| 11745 | - [intval($limit), $limit_data['count'], max(0, intval($limit) - $limit_data['count']), $timeframe_label], | |
| 11746 | - $message | |
| 11747 | - ); | |
| 11748 | - | |
| 11749 | - // Process HTML links in the message | |
| 11750 | - $message = $this->process_rate_limit_message_html($message); | |
| 11751 | - | |
| 11752 | - // Return error with the processed message | |
| 11753 | - return [ | |
| 11754 | - 'error' => true, | |
| 11755 | - 'message' => $message | |
| 11756 | - ]; | |
| 11757 | - } | |
| 11758 | - | |
| 11759 | - // Increment the counter | |
| 11760 | - $limit_data['count']++; | |
| 11761 | - update_option($option_name, $limit_data); | |
| 11762 | - | |
| 11763 | - return true; | |
| 11764 | -} | |
| 11765 | - | |
| 11766 | -/** | |
| 11767 | - * Enhanced rate limit reset with better error handling | |
| 11768 | - */ | |
| 11769 | -public function mxchat_reset_rate_limits() { | |
| 11770 | - try { | |
| 11771 | - global $wpdb; | |
| 11772 | - $all_options = get_option('mxchat_options', []); | |
| 11773 | - $current_time = time(); | |
| 11774 | - | |
| 11775 | - // Get rate limit options with a safer query and limit | |
| 11776 | - $option_names = $wpdb->get_col( | |
| 11777 | - $wpdb->prepare( | |
| 11778 | - "SELECT option_name FROM {$wpdb->options} | |
| 11779 | - WHERE option_name LIKE %s | |
| 11780 | - LIMIT 1000", | |
| 11781 | - 'mxchat_chat_limit_%' | |
| 11782 | - ) | |
| 11783 | - ); | |
| 11784 | - | |
| 11785 | - if (empty($option_names)) { | |
| 11786 | - return; | |
| 11787 | - } | |
| 11788 | - | |
| 11789 | - $processed_count = 0; | |
| 11790 | - $max_processing_time = 30; // Maximum 30 seconds | |
| 11791 | - $start_time = time(); | |
| 11792 | - | |
| 11793 | - foreach ($option_names as $option_name) { | |
| 11794 | - // Check processing time limit | |
| 11795 | - if ((time() - $start_time) > $max_processing_time) { | |
| 11796 | - //error_log('MxChat: Rate limit reset timeout after processing ' . $processed_count . ' entries'); | |
| 11797 | - break; | |
| 11798 | - } | |
| 11799 | - | |
| 11800 | - // Parse the option name more safely | |
| 11801 | - if (!preg_match('/^mxchat_chat_limit_(.+)_(.+)$/', $option_name, $matches)) { | |
| 11802 | - continue; | |
| 11803 | - } | |
| 11804 | - | |
| 11805 | - $role_and_user = $matches[1] . '_' . $matches[2]; | |
| 11806 | - $parts = explode('_', $role_and_user); | |
| 11807 | - | |
| 11808 | - if (count($parts) < 2) { | |
| 11809 | - continue; | |
| 11810 | - } | |
| 11811 | - | |
| 11812 | - // Extract role (everything except the last part which is user ID) | |
| 11813 | - $user_id_part = array_pop($parts); | |
| 11814 | - $role = implode('_', $parts); | |
| 11815 | - | |
| 11816 | - // Skip if role doesn't exist in our settings | |
| 11817 | - if (!isset($all_options['rate_limits'][$role])) { | |
| 11818 | - // Clean up orphaned entries | |
| 11819 | - delete_option($option_name); | |
| 11820 | - continue; | |
| 11821 | - } | |
| 11822 | - | |
| 11823 | - $timeframe = $all_options['rate_limits'][$role]['timeframe'] ?? 'daily'; | |
| 11824 | - $limit_data = get_option($option_name); | |
| 11825 | - | |
| 11826 | - if (!$limit_data || !is_array($limit_data) || !isset($limit_data['timestamp'])) { | |
| 11827 | - // Clean up invalid entries | |
| 11828 | - delete_option($option_name); | |
| 11829 | - continue; | |
| 11830 | - } | |
| 11831 | - | |
| 11832 | - $timestamp = $limit_data['timestamp']; | |
| 11833 | - $should_reset = false; | |
| 11834 | - | |
| 11835 | - // Determine if we should reset based on the timeframe | |
| 11836 | - switch ($timeframe) { | |
| 11837 | - case 'hourly': | |
| 11838 | - $should_reset = ($current_time - $timestamp) >= 3600; | |
| 11839 | - break; | |
| 11840 | - case 'daily': | |
| 11841 | - $should_reset = ($current_time - $timestamp) >= 86400; | |
| 11842 | - break; | |
| 11843 | - case 'weekly': | |
| 11844 | - $should_reset = ($current_time - $timestamp) >= 604800; | |
| 11845 | - break; | |
| 11846 | - case 'monthly': | |
| 11847 | - $should_reset = ($current_time - $timestamp) >= 2592000; | |
| 11848 | - break; | |
| 11849 | - } | |
| 11850 | - | |
| 11851 | - // Reset the counter if the timeframe has passed | |
| 11852 | - if ($should_reset) { | |
| 11853 | - delete_option($option_name); | |
| 11854 | - wp_cache_delete($option_name, 'options'); | |
| 11855 | - $processed_count++; | |
| 11856 | - } | |
| 11857 | - } | |
| 11858 | - | |
| 11859 | - // Clean up any orphaned cache entries | |
| 11860 | - wp_cache_delete('mxchat_all_chat_limits', 'options'); | |
| 11861 | - | |
| 11862 | - //error_log("MxChat: Rate limit reset completed. Processed {$processed_count} entries."); | |
| 11863 | - | |
| 11864 | - } catch (Exception $e) { | |
| 11865 | - //error_log('MxChat: Rate limit reset error: ' . $e->getMessage()); | |
| 11866 | - } | |
| 11867 | -} | |
| 11868 | - | |
| 11869 | - | |
| 11870 | -/** | |
| 11871 | - * Process HTML links in rate limit messages | |
| 11872 | - * | |
| 11873 | - * @param string $message The rate limit message | |
| 11874 | - * @return string The processed message with safe HTML links | |
| 11875 | - */ | |
| 11876 | -private function process_rate_limit_message_html($message) { | |
| 11877 | - // Return original message if empty | |
| 11878 | - if (empty($message)) { | |
| 11879 | - return $message; | |
| 11880 | - } | |
| 11881 | - | |
| 11882 | - // First, convert markdown links to HTML | |
| 11883 | - $message = $this->convert_markdown_links($message); | |
| 11884 | - | |
| 11885 | - // Then, auto-convert any remaining plain URLs to links | |
| 11886 | - $message = $this->auto_link_urls($message); | |
| 11887 | - | |
| 11888 | - // Allow basic HTML tags for links and formatting | |
| 11889 | - $allowed_tags = [ | |
| 11890 | - 'a' => [ | |
| 11891 | - 'href' => true, | |
| 11892 | - 'target' => true, | |
| 11893 | - 'rel' => true, | |
| 11894 | - 'title' => true, | |
| 11895 | - 'class' => true | |
| 11896 | - ], | |
| 11897 | - 'strong' => [], | |
| 11898 | - 'em' => [], | |
| 11899 | - 'br' => [], | |
| 11900 | - 'b' => [], | |
| 11901 | - 'i' => [], | |
| 11902 | - 'span' => ['class' => true] | |
| 11903 | - ]; | |
| 11904 | - | |
| 11905 | - // Sanitize but allow the specified HTML tags | |
| 11906 | - $processed_message = wp_kses($message, $allowed_tags); | |
| 11907 | - | |
| 11908 | - // If wp_kses stripped everything, return the original message as plain text | |
| 11909 | - if (empty($processed_message) && !empty($message)) { | |
| 11910 | - // Strip all HTML and return plain text as fallback | |
| 11911 | - return wp_strip_all_tags($message); | |
| 11912 | - } | |
| 11913 | - | |
| 11914 | - return $processed_message; | |
| 11915 | -} | |
| 11916 | - | |
| 11917 | -/** | |
| 11918 | - * Convert markdown links to HTML | |
| 11919 | - * | |
| 11920 | - * @param string $text The text to process | |
| 11921 | - * @return string The text with markdown links converted to HTML | |
| 11922 | - */ | |
| 11923 | -private function convert_markdown_links($text) { | |
| 11924 | - // Return original text if empty | |
| 11925 | - if (empty($text)) { | |
| 11926 | - return $text; | |
| 11927 | - } | |
| 11928 | - | |
| 11929 | - // Pattern to match markdown links: [text](url) | |
| 11930 | - $pattern = '/\[([^\]]+)\]\(([^)]+)\)/'; | |
| 11931 | - | |
| 11932 | - $processed_text = preg_replace_callback($pattern, function($matches) { | |
| 11933 | - $link_text = $matches[1]; | |
| 11934 | - $url = $matches[2]; | |
| 11935 | - | |
| 11936 | - // Clean up any trailing punctuation from the URL | |
| 11937 | - $url = rtrim($url, '.,;:!?'); | |
| 11938 | - | |
| 11939 | - // Sanitize the link text and URL | |
| 11940 | - $safe_text = esc_html($link_text); | |
| 11941 | - $safe_url = esc_url($url); | |
| 11942 | - | |
| 11943 | - // Create the HTML link | |
| 11944 | - return '<a href="' . $safe_url . '" target="_blank" rel="noopener noreferrer">' . $safe_text . '</a>'; | |
| 11945 | - }, $text); | |
| 11946 | - | |
| 11947 | - // If preg_replace_callback failed, return original text | |
| 11948 | - if ($processed_text === null) { | |
| 11949 | - return $text; | |
| 11950 | - } | |
| 11951 | - | |
| 11952 | - return $processed_text; | |
| 11953 | -} | |
| 11954 | - | |
| 11955 | -/** | |
| 11956 | - * Auto-convert plain URLs to clickable links | |
| 11957 | - * | |
| 11958 | - * @param string $text The text to process | |
| 11959 | - * @return string The text with URLs converted to links | |
| 11960 | - */ | |
| 11961 | -private function auto_link_urls($text) { | |
| 11962 | - // Return original text if empty | |
| 11963 | - if (empty($text)) { | |
| 11964 | - return $text; | |
| 11965 | - } | |
| 11966 | - | |
| 11967 | - // Simple pattern that avoids complex lookbehinds | |
| 11968 | - // This will match URLs that are not already inside href attributes or markdown links | |
| 11969 | - $pattern = '/(?<!href=["\'])(?<!\]\()https?:\/\/[^\s<>"\')\]]+/i'; | |
| 11970 | - | |
| 11971 | - $processed_text = preg_replace_callback($pattern, function($matches) { | |
| 11972 | - $url = $matches[0]; | |
| 11973 | - // Clean up any trailing punctuation that might have been captured | |
| 11974 | - $url = rtrim($url, '.,;:!?'); | |
| 11975 | - | |
| 11976 | - // Add target="_blank" and rel="noopener noreferrer" for security | |
| 11977 | - return '<a href="' . esc_url($url) . '" target="_blank" rel="noopener noreferrer">' . esc_html($url) . '</a>'; | |
| 11978 | - }, $text); | |
| 11979 | - | |
| 11980 | - // If preg_replace_callback failed, return original text | |
| 11981 | - if ($processed_text === null) { | |
| 11982 | - return $text; | |
| 11983 | - } | |
| 11984 | - | |
| 11985 | - return $processed_text; | |
| 11986 | -} | |
| 11987 | - | |
| 11988 | - | |
| 11989 | -// Helper function to get client IP address | |
| 11990 | -private function get_client_ip() { | |
| 11991 | - // Check for shared internet/ISP IP | |
| 11992 | - if (!empty($_SERVER['HTTP_CLIENT_IP'])) { | |
| 11993 | - return sanitize_text_field($_SERVER['HTTP_CLIENT_IP']); | |
| 11994 | - } | |
| 11995 | - | |
| 11996 | - // Check for IPs passing through proxies | |
| 11997 | - if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { | |
| 11998 | - // Use the first value in the comma-separated list | |
| 11999 | - $forwarded_for = explode(',', sanitize_text_field($_SERVER['HTTP_X_FORWARDED_FOR'])); | |
| 12000 | - return trim($forwarded_for[0]); | |
| 12001 | - } | |
| 12002 | - | |
| 12003 | - if (!empty($_SERVER['REMOTE_ADDR'])) { | |
| 12004 | - return sanitize_text_field($_SERVER['REMOTE_ADDR']); | |
| 12005 | - } | |
| 12006 | - | |
| 12007 | - // Fallback | |
| 12008 | - return 'unknown'; | |
| 12009 | -} | |
| 12010 | - | |
| 12011 | -/** | |
| 12012 | - * AJAX handler to get system information for testing panel | |
| 12013 | - */ | |
| 12014 | -/** | |
| 12015 | - * AJAX handler to get system information for testing panel | |
| 12016 | - */ | |
| 12017 | -public function mxchat_get_system_info() { | |
| 12018 | - // Verify nonce for security | |
| 12019 | - if (!wp_verify_nonce($_POST['nonce'], 'mxchat_test_nonce')) { | |
| 12020 | - wp_send_json_error(['message' => 'Invalid nonce']); | |
| 12021 | - return; | |
| 12022 | - } | |
| 12023 | - | |
| 12024 | - // Only allow admin users | |
| 12025 | - if (!current_user_can('administrator')) { | |
| 12026 | - wp_send_json_error(['message' => 'Unauthorized']); | |
| 12027 | - return; | |
| 12028 | - } | |
| 12029 | - | |
| 12030 | - // Get system prompt from options | |
| 12031 | - $system_prompt = isset($this->options['system_prompt_instructions']) | |
| 12032 | - ? $this->options['system_prompt_instructions'] | |
| 12033 | - : 'No system prompt configured'; | |
| 12034 | - | |
| 12035 | - // Get selected model | |
| 12036 | - $selected_model = isset($this->options['model']) ? $this->options['model'] : 'gpt-5.1-chat-latest'; | |
| 12037 | - | |
| 12038 | - // Check if OpenRouter is being used | |
| 12039 | - $is_openrouter = ($selected_model === 'openrouter'); | |
| 12040 | - $openrouter_model = ''; | |
| 12041 | - | |
| 12042 | - if ($is_openrouter) { | |
| 12043 | - // Get the actual OpenRouter model that's selected | |
| 12044 | - $openrouter_model = isset($this->options['openrouter_selected_model']) | |
| 12045 | - ? $this->options['openrouter_selected_model'] | |
| 12046 | - : 'No OpenRouter model selected'; | |
| 12047 | - | |
| 12048 | - // Update selected_model display to show both | |
| 12049 | - $selected_model = 'OpenRouter: ' . $openrouter_model; | |
| 12050 | - } | |
| 12051 | - | |
| 12052 | - // Get API key status (just check if they exist, don't expose the keys) | |
| 12053 | - $api_status = []; | |
| 12054 | - $api_status['openai'] = !empty($this->options['api_key']); | |
| 12055 | - $api_status['claude'] = !empty($this->options['claude_api_key']); | |
| 12056 | - $api_status['gemini'] = !empty($this->options['gemini_api_key']); | |
| 12057 | - $api_status['xai'] = !empty($this->options['xai_api_key']); | |
| 12058 | - $api_status['deepseek'] = !empty($this->options['deepseek_api_key']); | |
| 12059 | - $api_status['openrouter'] = !empty($this->options['openrouter_api_key']); | |
| 12060 | - | |
| 12061 | - wp_send_json_success([ | |
| 12062 | - 'system_prompt' => $system_prompt, | |
| 12063 | - 'selected_model' => $selected_model, | |
| 12064 | - 'is_openrouter' => $is_openrouter, | |
| 12065 | - 'openrouter_model' => $openrouter_model, | |
| 12066 | - 'api_status' => $api_status | |
| 12067 | - ]); | |
| 12068 | -} | |
| 12069 | - | |
| 12070 | -/** | |
| 12071 | - * AJAX handler to get similarity threshold | |
| 12072 | - */ | |
| 12073 | -public function mxchat_get_similarity_threshold() { | |
| 12074 | - // Verify nonce for security | |
| 12075 | - if (!wp_verify_nonce($_POST['nonce'], 'mxchat_test_nonce')) { | |
| 12076 | - wp_send_json_error(['message' => 'Invalid nonce']); | |
| 12077 | - return; | |
| 12078 | - } | |
| 12079 | - | |
| 12080 | - // Only allow admin users | |
| 12081 | - if (!current_user_can('administrator')) { | |
| 12082 | - wp_send_json_error(['message' => 'Unauthorized']); | |
| 12083 | - return; | |
| 12084 | - } | |
| 12085 | - | |
| 12086 | - // Get similarity threshold from main options (default 35%) | |
| 12087 | - $similarity_threshold = isset($this->options['similarity_threshold']) | |
| 12088 | - ? ((int) $this->options['similarity_threshold']) / 100 | |
| 12089 | - : 0.35; | |
| 12090 | - | |
| 12091 | - wp_send_json_success([ | |
| 12092 | - 'threshold' => $similarity_threshold, | |
| 12093 | - 'threshold_percentage' => ($similarity_threshold * 100) . '%' | |
| 12094 | - ]); | |
| 12095 | -} | |
| 12096 | - | |
| 12097 | -/** | |
| 12098 | - * AJAX handler to get knowledge base status | |
| 12099 | - */ | |
| 12100 | -public function mxchat_get_kb_status() { | |
| 12101 | - // Verify nonce for security | |
| 12102 | - if (!wp_verify_nonce($_POST['nonce'], 'mxchat_test_nonce')) { | |
| 12103 | - wp_send_json_error(['message' => 'Invalid nonce']); | |
| 12104 | - return; | |
| 12105 | - } | |
| 12106 | - | |
| 12107 | - // Only allow admin users | |
| 12108 | - if (!current_user_can('administrator')) { | |
| 12109 | - wp_send_json_error(['message' => 'Unauthorized']); | |
| 12110 | - return; | |
| 12111 | - } | |
| 12112 | - | |
| 12113 | - // Check OpenAI Vector Store first (takes priority) | |
| 12114 | - $vectorstore_options = get_option('mxchat_openai_vectorstore_options', array()); | |
| 12115 | - $use_vectorstore = (isset($vectorstore_options['mxchat_use_openai_vectorstore']) && $vectorstore_options['mxchat_use_openai_vectorstore'] === '1'); | |
| 12116 | - | |
| 12117 | - if ($use_vectorstore) { | |
| 12118 | - $vectorstore_ids = $vectorstore_options['mxchat_openai_vectorstore_ids'] ?? ''; | |
| 12119 | - $id_count = !empty($vectorstore_ids) ? count(array_filter(array_map('trim', explode(',', $vectorstore_ids)))) : 0; | |
| 12120 | - | |
| 12121 | - $kb_info = [ | |
| 12122 | - 'type' => 'OpenAI Vector Store', | |
| 12123 | - 'status' => 'Active', | |
| 12124 | - 'documents' => $id_count > 0 ? $id_count . ' vector store' . ($id_count > 1 ? 's' : '') . ' configured' : 'No vector stores configured' | |
| 12125 | - ]; | |
| 12126 | - | |
| 12127 | - wp_send_json_success($kb_info); | |
| 12128 | - return; | |
| 12129 | - } | |
| 12130 | - | |
| 12131 | - // Check Pinecone vs WordPress | |
| 12132 | - $addon_options = get_option('mxchat_pinecone_addon_options', array()); | |
| 12133 | - $use_pinecone = (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1'); | |
| 12134 | - | |
| 12135 | - $kb_info = [ | |
| 12136 | - 'type' => $use_pinecone ? 'Pinecone' : 'WordPress Database', | |
| 12137 | - 'status' => 'Active' | |
| 12138 | - ]; | |
| 12139 | - | |
| 12140 | - // Get document count | |
| 12141 | - if ($use_pinecone) { | |
| 12142 | - $kb_info['documents'] = 'Connected to Pinecone'; | |
| 12143 | - $kb_info['api_configured'] = !empty($addon_options['mxchat_pinecone_api_key']); | |
| 12144 | - } else { | |
| 12145 | - // Count documents in WordPress database | |
| 12146 | - global $wpdb; | |
| 12147 | - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content'; | |
| 12148 | - $count = $wpdb->get_var("SELECT COUNT(*) FROM {$table_name}"); | |
| 12149 | - $kb_info['documents'] = $count ? $count . ' documents' : 'No documents'; | |
| 12150 | - } | |
| 12151 | - | |
| 12152 | - wp_send_json_success($kb_info); | |
| 12153 | -} | |
| 12154 | - | |
| 12155 | -/** | |
| 12156 | - * AJAX handler to start a completely fresh session (NEW - replaces old clear session) | |
| 12157 | - */ | |
| 12158 | -public function mxchat_start_fresh_session() { | |
| 12159 | - // Verify nonce for security | |
| 12160 | - if (!wp_verify_nonce($_POST['nonce'], 'mxchat_test_nonce')) { | |
| 12161 | - wp_send_json_error(['message' => 'Invalid nonce']); | |
| 12162 | - return; | |
| 12163 | - } | |
| 12164 | - | |
| 12165 | - // Only allow admin users | |
| 12166 | - if (!current_user_can('administrator')) { | |
| 12167 | - wp_send_json_error(['message' => 'Unauthorized']); | |
| 12168 | - return; | |
| 12169 | - } | |
| 12170 | - | |
| 12171 | - $old_session_id = isset($_POST['old_session_id']) ? sanitize_text_field($_POST['old_session_id']) : ''; | |
| 12172 | - $new_session_id = isset($_POST['new_session_id']) ? sanitize_text_field($_POST['new_session_id']) : ''; | |
| 12173 | - | |
| 12174 | - if (empty($old_session_id)) { | |
| 12175 | - wp_send_json_error(['message' => 'Old session ID required']); | |
| 12176 | - return; | |
| 12177 | - } | |
| 12178 | - | |
| 12179 | - // If no new session ID provided, generate one | |
| 12180 | - if (empty($new_session_id)) { | |
| 12181 | - $new_session_id = 'mxchat_chat_' . substr(md5(uniqid()), 0, 9); | |
| 12182 | - } | |
| 12183 | - | |
| 12184 | - // Clear ALL data associated with the old session | |
| 12185 | - $this->clear_complete_session_data($old_session_id); | |
| 12186 | - | |
| 12187 | - // Initialize the new session | |
| 12188 | - $this->initialize_fresh_session($new_session_id); | |
| 12189 | - | |
| 12190 | - wp_send_json_success([ | |
| 12191 | - 'message' => 'Fresh session started successfully', | |
| 12192 | - 'new_session_id' => $new_session_id, | |
| 12193 | - 'old_session_id' => $old_session_id | |
| 12194 | - ]); | |
| 12195 | -} | |
| 12196 | - | |
| 12197 | -/** | |
| 12198 | - * Clear ALL data associated with a session (ENHANCED) | |
| 12199 | - */ | |
| 12200 | -private function clear_complete_session_data($session_id) { | |
| 12201 | - // Clear chat history | |
| 12202 | - delete_option("mxchat_history_{$session_id}"); | |
| 12203 | - | |
| 12204 | - // Clear chat mode | |
| 12205 | - delete_option("mxchat_mode_{$session_id}"); | |
| 12206 | - | |
| 12207 | - // Clear any PDF/Word transients | |
| 12208 | - $this->clear_pdf_transients($session_id); | |
| 12209 | - if (method_exists($this, 'clear_word_transients')) { | |
| 12210 | - $this->clear_word_transients($session_id); | |
| 12211 | - } | |
| 12212 | - | |
| 12213 | - // Clear agent-related data | |
| 12214 | - delete_option("mxchat_channel_{$session_id}"); | |
| 12215 | - delete_option("mxchat_agent_name_{$session_id}"); | |
| 12216 | - delete_option("mxchat_email_{$session_id}"); | |
| 12217 | - | |
| 12218 | - // Clear any recommendation flow state | |
| 12219 | - delete_option("mxchat_sr_flow_state_{$session_id}"); | |
| 12220 | - | |
| 12221 | - // Clear any cached embeddings or context | |
| 12222 | - delete_transient("mxchat_context_{$session_id}"); | |
| 12223 | - delete_transient("mxchat_last_query_{$session_id}"); | |
| 12224 | - | |
| 12225 | - // Clear any testing data | |
| 12226 | - delete_transient("mxchat_testing_data_{$session_id}"); | |
| 12227 | - | |
| 12228 | - // Clear any rate limiting data for this session | |
| 12229 | - delete_transient("mxchat_rate_limit_{$session_id}"); | |
| 12230 | - | |
| 12231 | - // Clear any other session-specific transients | |
| 12232 | - delete_transient("mxchat_waiting_for_pdf_url_{$session_id}"); | |
| 12233 | - delete_transient("mxchat_include_pdf_in_context_{$session_id}"); | |
| 12234 | - delete_transient("mxchat_include_word_in_context_{$session_id}"); | |
| 12235 | - | |
| 12236 | - // Clear form addon state (pending forms and submitted forms) | |
| 12237 | - delete_option("mxchat_pending_form_{$session_id}"); | |
| 12238 | - delete_option("mxchat_submitted_forms_{$session_id}"); | |
| 12239 | - | |
| 12240 | - //error_log("MxChat: Cleared all data for session: {$session_id}"); | |
| 12241 | -} | |
| 12242 | - | |
| 12243 | -/** | |
| 12244 | - * Initialize a fresh session with default data | |
| 12245 | - */ | |
| 12246 | -private function initialize_fresh_session($session_id) { | |
| 12247 | - // Set default chat mode | |
| 12248 | - update_option("mxchat_mode_{$session_id}", 'ai'); | |
| 12249 | - | |
| 12250 | - //error_log("MxChat: Initialized fresh session: {$session_id}"); | |
| 12251 | -} | |
| 12252 | - | |
| 12253 | -/** | |
| 12254 | - * Helper method to clear Word document transients (if you have Word support) | |
| 12255 | - */ | |
| 12256 | -private function clear_word_transients($session_id) { | |
| 12257 | - delete_transient('mxchat_word_url_' . $session_id); | |
| 12258 | - delete_transient('mxchat_word_filename_' . $session_id); | |
| 12259 | - delete_transient('mxchat_word_embeddings_' . $session_id); | |
| 12260 | - delete_transient('mxchat_include_word_in_context_' . $session_id); | |
| 12261 | -} | |
| 12262 | - | |
| 12263 | -/** | |
| 12264 | - * Simplified testing data capture method (CLEANED UP) | |
| 12265 | - */ | |
| 12266 | -private function capture_testing_data($user_embedding, $message, $session_id) { | |
| 12267 | - // Only capture for admin users | |
| 12268 | - if (!current_user_can('administrator')) { | |
| 12269 | - return null; | |
| 12270 | - } | |
| 12271 | - | |
| 12272 | - $testing_data = [ | |
| 12273 | - 'query' => $message, | |
| 12274 | - 'timestamp' => time(), | |
| 12275 | - 'top_matches' => [], | |
| 12276 | - 'action_matches' => [] // Add action matches | |
| 12277 | - ]; | |
| 12278 | - | |
| 12279 | - // Get similarity threshold | |
| 12280 | - $similarity_threshold = isset($this->options['similarity_threshold']) | |
| 12281 | - ? ((int) $this->options['similarity_threshold']) / 100 | |
| 12282 | - : 0.35; | |
| 12283 | - | |
| 12284 | - $testing_data['similarity_threshold'] = $similarity_threshold; | |
| 12285 | - | |
| 12286 | - // Use the real similarity analysis if available | |
| 12287 | - if ($this->last_similarity_analysis !== null) { | |
| 12288 | - $testing_data['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type']; | |
| 12289 | - $testing_data['top_matches'] = $this->last_similarity_analysis['top_matches']; | |
| 12290 | - $testing_data['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0; | |
| 12291 | - } else { | |
| 12292 | - // Fallback: determine knowledge base type | |
| 12293 | - $addon_options = get_option('mxchat_pinecone_addon_options', array()); | |
| 12294 | - $use_pinecone = (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1'); | |
| 12295 | - | |
| 12296 | - $testing_data['knowledge_base_type'] = $use_pinecone ? 'Pinecone' : 'WordPress Database'; | |
| 12297 | - } | |
| 12298 | - | |
| 12299 | - // Include action analysis if available | |
| 12300 | - if (isset($this->last_action_analysis) && !empty($this->last_action_analysis)) { | |
| 12301 | - $testing_data['action_matches'] = $this->last_action_analysis; | |
| 12302 | - | |
| 12303 | - // Clear it after capturing to avoid stale data | |
| 12304 | - $this->last_action_analysis = null; | |
| 12305 | - } | |
| 12306 | - | |
| 12307 | - return $testing_data; | |
| 12308 | -} | |
| 12309 | - | |
| 12310 | - | |
| 12311 | -/** | |
| 12312 | - * Track URL clicks from chatbot responses | |
| 12313 | - */ | |
| 12314 | -public function mxchat_track_url_click() { | |
| 12315 | - // Verify nonce for security | |
| 12316 | - if (!isset($_POST['nonce']) || !MxChat_Integrator::mxchat_verify_chat_send_nonce($_POST['nonce'])) { | |
| 12317 | - wp_send_json_error(['message' => 'Invalid nonce']); | |
| 12318 | - wp_die(); | |
| 12319 | - } | |
| 12320 | - | |
| 12321 | - $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : ''; | |
| 12322 | - $clicked_url = isset($_POST['url']) ? esc_url_raw($_POST['url']) : ''; | |
| 12323 | - $message_context = isset($_POST['message_context']) ? sanitize_textarea_field($_POST['message_context']) : ''; | |
| 12324 | - | |
| 12325 | - if (empty($session_id) || empty($clicked_url)) { | |
| 12326 | - wp_send_json_error(['message' => 'Missing required data']); | |
| 12327 | - wp_die(); | |
| 12328 | - } | |
| 12329 | - | |
| 12330 | - global $wpdb; | |
| 12331 | - $table_name = $wpdb->prefix . 'mxchat_url_clicks'; | |
| 12332 | - | |
| 12333 | - // Insert click tracking record | |
| 12334 | - $wpdb->insert( | |
| 12335 | - $table_name, | |
| 12336 | - [ | |
| 12337 | - 'session_id' => $session_id, | |
| 12338 | - 'clicked_url' => $clicked_url, | |
| 12339 | - 'message_context' => $message_context, | |
| 12340 | - 'click_timestamp' => current_time('mysql', 1), | |
| 12341 | - 'user_ip' => $_SERVER['REMOTE_ADDR'], | |
| 12342 | - 'user_agent' => $_SERVER['HTTP_USER_AGENT'] | |
| 12343 | - ] | |
| 12344 | - ); | |
| 12345 | - | |
| 12346 | - wp_send_json_success(['message' => 'Click tracked']); | |
| 12347 | - wp_die(); | |
| 12348 | -} | |
| 12349 | - | |
| 12350 | -/** | |
| 12351 | - * Get URL click analytics for a session | |
| 12352 | - */ | |
| 12353 | -public function mxchat_get_url_clicks($session_id) { | |
| 12354 | - global $wpdb; | |
| 12355 | - $table_name = $wpdb->prefix . 'mxchat_url_clicks'; | |
| 12356 | - | |
| 12357 | - $clicks = $wpdb->get_results($wpdb->prepare( | |
| 12358 | - "SELECT * FROM $table_name WHERE session_id = %s ORDER BY click_timestamp ASC", | |
| 12359 | - $session_id | |
| 12360 | - )); | |
| 12361 | - | |
| 12362 | - return $clicks; | |
| 12363 | -} | |
| 12364 | -/** | |
| 12365 | - * Track the originating page where chat was started | |
| 12366 | - */ | |
| 12367 | -public function mxchat_track_originating_page() { | |
| 12368 | - // Verify nonce | |
| 12369 | - if (!isset($_POST['nonce']) || !MxChat_Integrator::mxchat_verify_chat_send_nonce($_POST['nonce'])) { | |
| 12370 | - wp_send_json_error(['message' => 'Invalid nonce']); | |
| 12371 | - wp_die(); | |
| 12372 | - } | |
| 12373 | - | |
| 12374 | - $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : ''; | |
| 12375 | - $page_url = isset($_POST['page_url']) ? esc_url_raw($_POST['page_url']) : ''; | |
| 12376 | - $page_title = isset($_POST['page_title']) ? sanitize_text_field($_POST['page_title']) : ''; | |
| 12377 | - | |
| 12378 | - if (empty($session_id)) { | |
| 12379 | - wp_send_json_error(['message' => 'Missing session ID']); | |
| 12380 | - wp_die(); | |
| 12381 | - } | |
| 12382 | - | |
| 12383 | - global $wpdb; | |
| 12384 | - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; | |
| 12385 | - | |
| 12386 | - // Check if we've already tracked for this session | |
| 12387 | - $existing = $wpdb->get_var($wpdb->prepare( | |
| 12388 | - "SELECT COUNT(*) FROM $table_name | |
| 12389 | - WHERE session_id = %s | |
| 12390 | - AND originating_page_url IS NOT NULL", | |
| 12391 | - $session_id | |
| 12392 | - )); | |
| 12393 | - | |
| 12394 | - if ($existing > 0) { | |
| 12395 | - wp_send_json_success(['message' => 'Already tracked']); | |
| 12396 | - wp_die(); | |
| 12397 | - } | |
| 12398 | - | |
| 12399 | - // Update the first message in this session with originating page info | |
| 12400 | - $wpdb->query($wpdb->prepare( | |
| 12401 | - "UPDATE $table_name | |
| 12402 | - SET originating_page_url = %s, | |
| 12403 | - originating_page_title = %s | |
| 12404 | - WHERE session_id = %s | |
| 12405 | - ORDER BY timestamp ASC | |
| 12406 | - LIMIT 1", | |
| 12407 | - $page_url, | |
| 12408 | - $page_title, | |
| 12409 | - $session_id | |
| 12410 | - )); | |
| 12411 | - | |
| 12412 | - wp_send_json_success(['message' => 'Originating page tracked']); | |
| 12413 | - wp_die(); | |
| 12414 | -} | |
| 12415 | - | |
| 12416 | -/** | |
| 12417 | - * Validate and clean URLs from AI response | |
| 12418 | - * Removes any URLs that aren't in the knowledge base | |
| 12419 | - * | |
| 12420 | - * @param string $response_text The AI-generated response | |
| 12421 | - * @param array $valid_urls Array of URLs from the knowledge base | |
| 12422 | - * @return string Cleaned response with invalid URLs removed/flagged | |
| 12423 | - */ | |
| 12424 | -private function validate_and_clean_urls($response_text, $valid_urls) { | |
| 12425 | - // DEBUG: Log what we're working with | |
| 12426 | - //error_log("=== MxChat URL Validation Debug ==="); | |
| 12427 | - //error_log("Valid URLs count: " . count($valid_urls)); | |
| 12428 | - //error_log("Valid URLs: " . print_r($valid_urls, true)); | |
| 12429 | - //error_log("Response text length: " . strlen($response_text)); | |
| 12430 | - //error_log("Response text preview: " . substr($response_text, 0, 500)); | |
| 12431 | - | |
| 12432 | - // If no valid URLs provided or empty response, return as-is | |
| 12433 | - if (empty($valid_urls) || empty($response_text)) { | |
| 12434 | - //error_log("Validation skipped - empty valid_urls or response"); | |
| 12435 | - return $response_text; | |
| 12436 | - } | |
| 12437 | - | |
| 12438 | - // Extract all URLs from the AI response | |
| 12439 | - // This regex matches http:// and https:// URLs | |
| 12440 | - preg_match_all( | |
| 12441 | - '#\bhttps?://[^\s<>"\')\]]+#i', | |
| 12442 | - $response_text, | |
| 12443 | - $matches | |
| 12444 | - ); | |
| 12445 | - | |
| 12446 | - // If no URLs found in response, return as-is | |
| 12447 | - if (empty($matches[0])) { | |
| 12448 | - //error_log("No URLs found in response"); | |
| 12449 | - return $response_text; | |
| 12450 | - } | |
| 12451 | - | |
| 12452 | - $found_urls = $matches[0]; | |
| 12453 | - $cleaned_response = $response_text; | |
| 12454 | - $removed_count = 0; | |
| 12455 | - | |
| 12456 | - // Normalize valid URLs for comparison (remove trailing slashes, fragments, etc.) | |
| 12457 | - $normalized_valid_urls = array_map(function($url) { | |
| 12458 | - // Remove trailing slash | |
| 12459 | - $url = rtrim($url, '/'); | |
| 12460 | - // Remove URL fragments (#section) | |
| 12461 | - $url = preg_replace('/#.*$/', '', $url); | |
| 12462 | - // Remove trailing punctuation that might have been captured | |
| 12463 | - $url = rtrim($url, '.,;:!?'); | |
| 12464 | - return $url; | |
| 12465 | - }, $valid_urls); | |
| 12466 | - | |
| 12467 | - //error_log("Normalized valid URLs: " . print_r($normalized_valid_urls, true)); | |
| 12468 | - | |
| 12469 | - foreach ($found_urls as $found_url) { | |
| 12470 | - // Clean up the found URL (remove trailing punctuation that might have been captured) | |
| 12471 | - $clean_found_url = rtrim($found_url, '.,;:!?)'); | |
| 12472 | - | |
| 12473 | - // DEBUG: Log each URL being checked | |
| 12474 | - //error_log("Checking found URL: " . $found_url); | |
| 12475 | - | |
| 12476 | - // Normalize for comparison | |
| 12477 | - $normalized_found = rtrim($clean_found_url, '/'); | |
| 12478 | - $normalized_found = preg_replace('/#.*$/', '', $normalized_found); | |
| 12479 | - | |
| 12480 | - //error_log("Normalized found URL: " . $normalized_found); | |
| 12481 | - | |
| 12482 | - // Check if this URL exists in our valid URLs list | |
| 12483 | - $is_valid = false; | |
| 12484 | - | |
| 12485 | - //error_log("Starting validation checks for: " . $normalized_found); | |
| 12486 | - | |
| 12487 | - // First, try exact match | |
| 12488 | - if (in_array($normalized_found, $normalized_valid_urls)) { | |
| 12489 | - $is_valid = true; | |
| 12490 | - //error_log("EXACT MATCH FOUND"); | |
| 12491 | - } else { | |
| 12492 | - //error_log("No exact match, checking variations..."); | |
| 12493 | - // If no exact match, check if it's a variation (with query params, etc.) | |
| 12494 | - foreach ($normalized_valid_urls as $valid_url) { | |
| 12495 | - //error_log(" Comparing against valid URL: " . $valid_url); | |
| 12496 | - | |
| 12497 | - // Check if the found URL starts with a valid URL (handles query params) | |
| 12498 | - if (strpos($normalized_found, $valid_url) === 0) { | |
| 12499 | - // Check what comes after the valid URL | |
| 12500 | - $remainder = substr($normalized_found, strlen($valid_url)); | |
| 12501 | - | |
| 12502 | - // Only valid if: | |
| 12503 | - // 1. Exact match (remainder is empty) | |
| 12504 | - // 2. Query params (starts with ?) | |
| 12505 | - // 3. Fragment (starts with #) | |
| 12506 | - if (empty($remainder) || $remainder[0] === '?' || $remainder[0] === '#') { | |
| 12507 | - $is_valid = true; | |
| 12508 | - //error_log(" MATCH: Found URL is valid variation of base URL"); | |
| 12509 | - break; | |
| 12510 | - } else { | |
| 12511 | - //error_log(" NOT A MATCH: Found URL extends path beyond valid URL (remainder: " . $remainder . ")"); | |
| 12512 | - } | |
| 12513 | - } | |
| 12514 | - // Also check the reverse (in case valid URL has query params) | |
| 12515 | - if (strpos($valid_url, $normalized_found) === 0) { | |
| 12516 | - $is_valid = true; | |
| 12517 | - //error_log(" MATCH: Valid URL starts with found URL"); | |
| 12518 | - break; | |
| 12519 | - } | |
| 12520 | - } | |
| 12521 | - | |
| 12522 | - if (!$is_valid) { | |
| 12523 | - //error_log("NO MATCH FOUND - URL should be removed"); | |
| 12524 | - } | |
| 12525 | - } | |
| 12526 | - | |
| 12527 | - // If URL is not valid, remove it from the response | |
| 12528 | - if (!$is_valid) { | |
| 12529 | - // Log the removal for debugging | |
| 12530 | - //error_log("MxChat: Removed hallucinated URL: " . $found_url); | |
| 12531 | - //error_log("MxChat: Valid URLs were: " . implode(', ', array_slice($normalized_valid_urls, 0, 5))); | |
| 12532 | - | |
| 12533 | - $removed_count++; | |
| 12534 | - | |
| 12535 | - // Check if URL is part of a markdown link: [text](url) | |
| 12536 | - $markdown_pattern = '/\[([^\]]+)\]\(' . preg_quote($found_url, '/') . '\)/'; | |
| 12537 | - if (preg_match($markdown_pattern, $cleaned_response)) { | |
| 12538 | - //error_log("Found markdown link, removing but keeping text"); | |
| 12539 | - // Remove the markdown link but keep the text | |
| 12540 | - $cleaned_response = preg_replace($markdown_pattern, '$1', $cleaned_response); | |
| 12541 | - } | |
| 12542 | - // Check if URL is part of an HTML link: <a href="url">text</a> | |
| 12543 | - else if (preg_match('/<a[^>]*href=["\']' . preg_quote($found_url, '/') . '["\'][^>]*>(.*?)<\/a>/i', $cleaned_response, $link_match)) { | |
| 12544 | - //error_log("Found HTML link, removing but keeping text"); | |
| 12545 | - // Remove the HTML link but keep the text | |
| 12546 | - $link_text = $link_match[1]; | |
| 12547 | - $cleaned_response = preg_replace( | |
| 12548 | - '/<a[^>]*href=["\']' . preg_quote($found_url, '/') . '["\'][^>]*>.*?<\/a>/i', | |
| 12549 | - $link_text, | |
| 12550 | - $cleaned_response | |
| 12551 | - ); | |
| 12552 | - } | |
| 12553 | - // Otherwise just remove the bare URL | |
| 12554 | - else { | |
| 12555 | - //error_log("Removing bare URL"); | |
| 12556 | - $cleaned_response = str_replace($found_url, '', $cleaned_response); | |
| 12557 | - } | |
| 12558 | - } | |
| 12559 | - } | |
| 12560 | - | |
| 12561 | - // Log summary if any URLs were removed | |
| 12562 | - if ($removed_count > 0) { | |
| 12563 | - //error_log("MxChat: URL Validation Summary - Removed {$removed_count} hallucinated URL(s)"); | |
| 12564 | - } else { | |
| 12565 | - //error_log("MxChat: URL Validation Summary - No URLs removed, all were valid"); | |
| 12566 | - } | |
| 12567 | - | |
| 12568 | - // Clean up any double spaces or awkward punctuation left behind | |
| 12569 | - // IMPORTANT: Only collapse horizontal whitespace (spaces/tabs), preserve newlines for markdown formatting | |
| 12570 | - $cleaned_response = preg_replace('/[^\S\n]+/', ' ', $cleaned_response); // Collapse spaces/tabs but NOT newlines | |
| 12571 | - $cleaned_response = preg_replace('/[^\S\n]+([.,;:!?])/', '$1', $cleaned_response); // Same for punctuation cleanup | |
| 12572 | - | |
| 12573 | - //error_log("Final cleaned response: " . $cleaned_response); | |
| 12574 | - | |
| 12575 | - return trim($cleaned_response); | |
| 12576 | -} | |
| 12577 | - | |
| 12578 | -/** | |
| 12579 | - * AJAX handler to get current chat mode for a session | |
| 12580 | - */ | |
| 12581 | -public function mxchat_get_current_chat_mode() { | |
| 12582 | - // Verify nonce for security | |
| 12583 | - if (!isset($_POST['nonce']) || !MxChat_Integrator::mxchat_verify_chat_send_nonce($_POST['nonce'])) { | |
| 12584 | - wp_send_json_error(['message' => 'Invalid nonce']); | |
| 12585 | - wp_die(); | |
| 12586 | - } | |
| 12587 | - | |
| 12588 | - $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : ''; | |
| 12589 | - | |
| 12590 | - if (empty($session_id)) { | |
| 12591 | - wp_send_json_error(['message' => 'Session ID missing']); | |
| 12592 | - wp_die(); | |
| 12593 | - } | |
| 12594 | - | |
| 12595 | - // Get the current chat mode for this session | |
| 12596 | - $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai'); | |
| 12597 | - | |
| 12598 | - wp_send_json_success([ | |
| 12599 | - 'chat_mode' => $chat_mode | |
| 12600 | - ]); | |
| 12601 | - wp_die(); | |
| 12602 | -} | |
| 12603 | - | |
| 12604 | - | |
| 12605 | - | |
| 12606 | -} | |
| 12607 | -?> | |
| 1 | +<?php | |
| 2 | +if (!defined('ABSPATH')) { | |
| 3 | + exit; | |
| 4 | +} | |
| 5 | + | |
| 6 | +class MxChat_Integrator { | |
| 7 | + private $options; | |
| 8 | + private $chat_count; | |
| 9 | + | |
| 10 | +public function __construct() { | |
| 11 | + $this->options = get_option('mxchat_options'); | |
| 12 | + $this->chat_count = get_option('mxchat_chat_count', 0); | |
| 13 | + | |
| 14 | + // Add WooCommerce hooks | |
| 15 | + add_action('wp_insert_post', array($this, 'mxchat_handle_product_change'), 10, 3); | |
| 16 | + | |
| 17 | + // Ensure embeddings are removed when a product is moved to trash or permanently deleted | |
| 18 | + add_action('wp_trash_post', array($this, 'mxchat_handle_product_delete')); | |
| 19 | + add_action('before_delete_post', array($this, 'mxchat_handle_product_delete')); | |
| 20 | + | |
| 21 | + add_action('wp_enqueue_scripts', array($this, 'mxchat_enqueue_scripts_styles')); | |
| 22 | + add_action('wp_ajax_mxchat_handle_chat_request', array($this, 'mxchat_handle_chat_request')); | |
| 23 | + add_action('wp_ajax_nopriv_mxchat_handle_chat_request', array($this, 'mxchat_handle_chat_request')); | |
| 24 | + add_action('wp_ajax_mxchat_dismiss_pre_chat_message', array($this, 'mxchat_dismiss_pre_chat_message')); | |
| 25 | + add_action('wp_ajax_nopriv_mxchat_dismiss_pre_chat_message', array($this, 'mxchat_dismiss_pre_chat_message')); | |
| 26 | + | |
| 27 | + if (!wp_next_scheduled('mxchat_reset_rate_limits')) { | |
| 28 | + wp_schedule_event(time(), 'daily', 'mxchat_reset_rate_limits'); | |
| 29 | + } | |
| 30 | + | |
| 31 | + add_action('mxchat_reset_rate_limits', array($this, 'mxchat_reset_rate_limits')); | |
| 32 | +} | |
| 33 | + | |
| 34 | +public function mxchat_handle_product_change($post_id, $post, $update) { | |
| 35 | + // Ensure this is a product post type | |
| 36 | + if ($post->post_type !== 'product') { | |
| 37 | + return; | |
| 38 | + } | |
| 39 | + | |
| 40 | + // Only generate embeddings if the product is published | |
| 41 | + if ($post->post_status === 'publish') { | |
| 42 | + // Delay the embedding slightly to ensure all product data is available | |
| 43 | + add_action('shutdown', function() use ($post_id) { | |
| 44 | + $product = wc_get_product($post_id); | |
| 45 | + if ($product && $product->get_price() !== '') { | |
| 46 | + $this->mxchat_store_product_embedding($product); | |
| 47 | + } else { | |
| 48 | + // Optionally, log or handle the case where product data is incomplete | |
| 49 | + error_log("Product {$post_id} does not have complete data. Embedding not generated."); | |
| 50 | + } | |
| 51 | + }); | |
| 52 | + } | |
| 53 | +} | |
| 54 | + | |
| 55 | +public function mxchat_handle_product_delete($post_id) { | |
| 56 | + if (get_post_type($post_id) !== 'product') { | |
| 57 | + return; | |
| 58 | + } | |
| 59 | + | |
| 60 | + global $wpdb; | |
| 61 | + $table_name = $wpdb->prefix . 'mxchat_system_prompt_content'; | |
| 62 | + | |
| 63 | + // Delete the embedding associated with this product | |
| 64 | + $wpdb->delete($table_name, array('source_url' => get_permalink($post_id)), array('%s')); | |
| 65 | +} | |
| 66 | + | |
| 67 | +private function mxchat_store_product_embedding($product) { | |
| 68 | + if (isset($this->options['enable_woocommerce_integration']) && $this->options['enable_woocommerce_integration'] === '1') { | |
| 69 | + | |
| 70 | + $source_url = get_permalink($product->get_id()); | |
| 71 | + $regular_price = $product->get_regular_price(); | |
| 72 | + $sale_price = $product->get_sale_price(); | |
| 73 | + $price = $sale_price ?: $regular_price; | |
| 74 | + | |
| 75 | + $description = $product->get_description() . "\n\n" . | |
| 76 | + "Short Description: " . $product->get_short_description() . "\n" . | |
| 77 | + "Price: " . $regular_price . "\n" . | |
| 78 | + "Sale Price: " . ($sale_price ?: 'N/A') . "\n" . | |
| 79 | + "SKU: " . $product->get_sku(); | |
| 80 | + | |
| 81 | + global $wpdb; | |
| 82 | + $table_name = $wpdb->prefix . 'mxchat_system_prompt_content'; | |
| 83 | + | |
| 84 | + // Delete any existing embedding for this product | |
| 85 | + $wpdb->delete($table_name, array('source_url' => $source_url), array('%s')); | |
| 86 | + | |
| 87 | + // Submit the new content and embedding to the database | |
| 88 | + MxChat_Utils::submit_content_to_db($description, $source_url, $this->options['api_key']); | |
| 89 | + } | |
| 90 | +} | |
| 91 | + | |
| 92 | + | |
| 93 | + | |
| 94 | + | |
| 95 | + | |
| 96 | + private function mxchat_increment_chat_count() { | |
| 97 | + $chat_count = get_option('mxchat_chat_count', 0); | |
| 98 | + $chat_count++; | |
| 99 | + update_option('mxchat_chat_count', $chat_count); | |
| 100 | + } | |
| 101 | + | |
| 102 | +public function mxchat_fetch_conversation_history_for_ajax($session_id) { | |
| 103 | + global $wpdb; | |
| 104 | + $table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; | |
| 105 | + | |
| 106 | + // Prepare and execute the query safely | |
| 107 | + $chat_transcripts = $wpdb->get_results( | |
| 108 | + $wpdb->prepare("SELECT * FROM $table_name WHERE session_id = %s ORDER BY timestamp ASC", sanitize_text_field($session_id)) | |
| 109 | + ); | |
| 110 | + | |
| 111 | + // Check if results are empty | |
| 112 | + if (empty($chat_transcripts)) { | |
| 113 | + return []; | |
| 114 | + } | |
| 115 | + | |
| 116 | + // Build the conversation history | |
| 117 | + $conversation_history = []; | |
| 118 | + foreach ($chat_transcripts as $transcript) { | |
| 119 | + $conversation_history[] = [ | |
| 120 | + 'role' => $transcript->role, | |
| 121 | + 'content' => $transcript->message | |
| 122 | + ]; | |
| 123 | + } | |
| 124 | + | |
| 125 | + return $conversation_history; | |
| 126 | +} | |
| 127 | + | |
| 128 | + | |
| 129 | +private function mxchat_save_chat_message($session_id, $role, $message) { | |
| 130 | + global $wpdb; | |
| 131 | + $table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; | |
| 132 | + | |
| 133 | + $user_id = is_user_logged_in() ? get_current_user_id() : 0; | |
| 134 | + $user_identifier = MxChat_User::mxchat_get_user_identifier(); | |
| 135 | + $user_email = MxChat_User::mxchat_get_user_email(); | |
| 136 | + | |
| 137 | + $wpdb->insert($table_name, [ | |
| 138 | + 'user_id' => $user_id, | |
| 139 | + 'user_identifier' => $user_identifier, | |
| 140 | + 'user_email' => $user_email, | |
| 141 | + 'session_id' => $session_id, | |
| 142 | + 'role' => $role, | |
| 143 | + 'message' => $message, | |
| 144 | + 'timestamp' => current_time('mysql', 1) | |
| 145 | + ]); | |
| 146 | +} | |
| 147 | + | |
| 148 | +public function mxchat_handle_chat_request() { | |
| 149 | + global $wpdb; | |
| 150 | + | |
| 151 | + // Get and sanitize the user identifier | |
| 152 | + $user_id = $this->mxchat_get_user_identifier(); | |
| 153 | + $user_id = sanitize_key($user_id); | |
| 154 | + | |
| 155 | + // Manage rate limiting | |
| 156 | + $rate_limit_transient_key = 'mxchat_chat_limit_' . $user_id; | |
| 157 | + $chat_count = get_transient($rate_limit_transient_key); | |
| 158 | + $session_transient_key = 'mxchat_chat_session_' . $user_id; | |
| 159 | + $session_id = get_transient($session_transient_key); | |
| 160 | + | |
| 161 | + if ($chat_count === false) { | |
| 162 | + $chat_count = 0; | |
| 163 | + } | |
| 164 | + | |
| 165 | + if ($session_id === false) { | |
| 166 | + $session_id = uniqid('mxchat_chat_', true); | |
| 167 | + set_transient($session_transient_key, $session_id, DAY_IN_SECONDS); // Store session ID for a day | |
| 168 | + } | |
| 169 | + | |
| 170 | + $rate_limit_option = isset($this->options['rate_limit']) ? $this->options['rate_limit'] : 'unlimited'; | |
| 171 | + | |
| 172 | + // Check if rate limit is not 'unlimited' | |
| 173 | + if ($rate_limit_option !== 'unlimited') { | |
| 174 | + $rate_limit = intval($rate_limit_option); | |
| 175 | + | |
| 176 | + if ($chat_count >= $rate_limit) { | |
| 177 | + wp_send_json_error('Rate limit exceeded. Please try again later.'); | |
| 178 | + wp_die(); | |
| 179 | + } | |
| 180 | + set_transient($rate_limit_transient_key, $chat_count + 1, DAY_IN_SECONDS); | |
| 181 | + } | |
| 182 | + | |
| 183 | + // Validate and sanitize the incoming message | |
| 184 | + if (!isset($_POST['message'])) { | |
| 185 | + wp_send_json_error('No message received'); | |
| 186 | + wp_die(); | |
| 187 | + } | |
| 188 | + | |
| 189 | + $message = sanitize_text_field($_POST['message']); | |
| 190 | + if (empty($message)) { | |
| 191 | + wp_send_json_error('Message is empty or invalid.'); | |
| 192 | + wp_die(); | |
| 193 | + } | |
| 194 | + | |
| 195 | + // Initialize the variable with the original message | |
| 196 | + $message_with_order_details = $message; | |
| 197 | + | |
| 198 | + // Check if the user asked about orders | |
| 199 | + if (MxChat_WooCommerce::mxchat_is_order_related_query($message)) { | |
| 200 | + $order_details = MxChat_WooCommerce::mxchat_fetch_user_orders_details(); | |
| 201 | + | |
| 202 | + // If order details are available, append them to the user's message | |
| 203 | + if (!empty($order_details)) { | |
| 204 | + $message_with_order_details = $message . "\n\n" . $order_details; | |
| 205 | + } | |
| 206 | + } | |
| 207 | + | |
| 208 | + | |
| 209 | + // Save the combined message to the database | |
| 210 | + $this->mxchat_save_chat_message($session_id, 'user', $message_with_order_details); | |
| 211 | + | |
| 212 | + // Generate and validate the embedding | |
| 213 | + $user_message_embedding = $this->mxchat_generate_embedding($message_with_order_details, $this->options['api_key']); | |
| 214 | + if (!is_array($user_message_embedding)) { | |
| 215 | + wp_send_json_error('Error processing your message.'); | |
| 216 | + wp_die(); | |
| 217 | + } | |
| 218 | + | |
| 219 | + // Find relevant content based on embedding | |
| 220 | + $relevant_content = $this->mxchat_find_relevant_content($user_message_embedding); | |
| 221 | + | |
| 222 | + // Fetch conversation history from the database | |
| 223 | + $conversation_history = $this->mxchat_fetch_conversation_history_for_ajax($session_id); | |
| 224 | + | |
| 225 | + // Increment the chat count | |
| 226 | + $this->mxchat_increment_chat_count(); | |
| 227 | + | |
| 228 | + // Generate a response from the AI model | |
| 229 | + $response = $this->mxchat_generate_response($relevant_content, $this->options['api_key'], $conversation_history); | |
| 230 | + | |
| 231 | + // Save the bot response to the database | |
| 232 | + $this->mxchat_save_chat_message($session_id, 'bot', $response); | |
| 233 | + | |
| 234 | + // Send the response back to the client | |
| 235 | + wp_send_json(['message' => $response]); | |
| 236 | + | |
| 237 | + wp_die(); | |
| 238 | +} | |
| 239 | + | |
| 240 | + | |
| 241 | +private function mxchat_get_user_identifier() { | |
| 242 | + return MxChat_User::mxchat_get_user_identifier(); | |
| 243 | +} | |
| 244 | + | |
| 245 | + | |
| 246 | + | |
| 247 | + private function mxchat_generate_embedding($text, $api_key) { | |
| 248 | + $endpoint = 'https://api.openai.com/v1/embeddings'; | |
| 249 | + | |
| 250 | + $body = wp_json_encode([ | |
| 251 | + 'input' => $text, | |
| 252 | + 'model' => 'text-embedding-ada-002' | |
| 253 | + ]); | |
| 254 | + | |
| 255 | + $args = [ | |
| 256 | + 'body' => $body, | |
| 257 | + 'headers' => [ | |
| 258 | + 'Content-Type' => 'application/json', | |
| 259 | + 'Authorization' => 'Bearer ' . $api_key, | |
| 260 | + ], | |
| 261 | + 'timeout' => 60, | |
| 262 | + 'redirection' => 5, | |
| 263 | + 'blocking' => true, | |
| 264 | + 'httpversion' => '1.0', | |
| 265 | + 'sslverify' => true, | |
| 266 | + ]; | |
| 267 | + | |
| 268 | + $response = wp_remote_post($endpoint, $args); | |
| 269 | + | |
| 270 | + if (is_wp_error($response)) { | |
| 271 | + return null; | |
| 272 | + } | |
| 273 | + | |
| 274 | + $response_body = json_decode(wp_remote_retrieve_body($response), true); | |
| 275 | + | |
| 276 | + if (isset($response_body['data'][0]['embedding']) && is_array($response_body['data'][0]['embedding'])) { | |
| 277 | + return $response_body['data'][0]['embedding']; | |
| 278 | + } else { | |
| 279 | + return null; | |
| 280 | + } | |
| 281 | + } | |
| 282 | + | |
| 283 | +private function mxchat_find_relevant_content($user_embedding) { | |
| 284 | + global $wpdb; | |
| 285 | + $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content'; | |
| 286 | + | |
| 287 | + // Define a cache key for embeddings | |
| 288 | + $cache_key = 'mxchat_system_prompt_embeddings'; | |
| 289 | + | |
| 290 | + // Attempt to get the embeddings from the cache | |
| 291 | + $embeddings = wp_cache_get($cache_key, 'mxchat_system_prompts'); | |
| 292 | + | |
| 293 | + if ($embeddings === false) { | |
| 294 | + // Cache miss, query the database and cache the results | |
| 295 | + $query = "SELECT id, embedding_vector FROM {$system_prompt_table}"; | |
| 296 | + $embeddings = $wpdb->get_results($query); | |
| 297 | + | |
| 298 | + if ($embeddings === null || empty($embeddings)) { | |
| 299 | + error_log("No embeddings found in the database."); | |
| 300 | + return null; // Return null to handle no embeddings gracefully | |
| 301 | + } | |
| 302 | + | |
| 303 | + // Cache the results if successful | |
| 304 | + wp_cache_set($cache_key, $embeddings, 'mxchat_system_prompts', 3600); // Cache for 1 hour | |
| 305 | + } | |
| 306 | + | |
| 307 | + $most_relevant_id = null; | |
| 308 | + $highest_similarity = -INF; | |
| 309 | + | |
| 310 | + foreach ($embeddings as $embedding) { | |
| 311 | + $database_embedding = maybe_unserialize($embedding->embedding_vector); | |
| 312 | + | |
| 313 | + // Debugging: Log the embeddings | |
| 314 | + // if (!is_array($database_embedding)) { | |
| 315 | + // error_log("Invalid database embedding format for ID {$embedding->id}: " . print_r($database_embedding, true)); | |
| 316 | + // continue; | |
| 317 | + // } | |
| 318 | + | |
| 319 | + if (is_array($user_embedding)) { | |
| 320 | + $similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $database_embedding); | |
| 321 | + | |
| 322 | + // Debugging: Log the similarity score | |
| 323 | + // error_log("Calculated similarity for ID {$embedding->id}: {$similarity}"); | |
| 324 | + | |
| 325 | + if ($similarity > $highest_similarity) { | |
| 326 | + $highest_similarity = $similarity; | |
| 327 | + $most_relevant_id = $embedding->id; | |
| 328 | + } | |
| 329 | + } else { | |
| 330 | + // error_log("User embedding is not an array. Embedding data: " . print_r($user_embedding, true)); | |
| 331 | + } | |
| 332 | + } | |
| 333 | + | |
| 334 | + if ($most_relevant_id !== null) { | |
| 335 | + // Fetch content with product links | |
| 336 | + return $this->fetch_content_with_product_links($most_relevant_id); | |
| 337 | + } | |
| 338 | + | |
| 339 | + error_log("No relevant content found. Most relevant ID was null."); | |
| 340 | + return null; // Return null if no relevant content is found | |
| 341 | +} | |
| 342 | + | |
| 343 | + | |
| 344 | +private function fetch_content_with_product_links($most_relevant_id) { | |
| 345 | + global $wpdb; | |
| 346 | + $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content'; | |
| 347 | + | |
| 348 | + // Fetch the article content and associated product URL | |
| 349 | + $query = $wpdb->prepare("SELECT article_content, source_url FROM {$system_prompt_table} WHERE id = %d", $most_relevant_id); | |
| 350 | + $result = $wpdb->get_row($query); | |
| 351 | + | |
| 352 | + if ($result) { | |
| 353 | + // Append the product link to the content if available | |
| 354 | + $content = $result->article_content; | |
| 355 | + if (!empty($result->source_url)) { | |
| 356 | + $content .= "\n\nFor more details, check out this product: " . esc_url($result->source_url); | |
| 357 | + } | |
| 358 | + return $content; | |
| 359 | + } | |
| 360 | + | |
| 361 | + return null; | |
| 362 | +} | |
| 363 | + | |
| 364 | + | |
| 365 | + private function mxchat_generate_response($relevant_content, $api_key, $conversation_history) { | |
| 366 | + if (!$relevant_content) { | |
| 367 | + return "I'm sorry, I couldn't find relevant information on that topic."; | |
| 368 | + } | |
| 369 | + | |
| 370 | + $system_prompt_instructions = isset($this->options['system_prompt_instructions']) ? $this->options['system_prompt_instructions'] : ''; | |
| 371 | + | |
| 372 | + $content_with_instructions = $system_prompt_instructions . " " . $relevant_content; | |
| 373 | + | |
| 374 | + array_unshift($conversation_history, [ | |
| 375 | + 'role' => 'system', | |
| 376 | + 'content' => "Here are your instructions: " . $content_with_instructions | |
| 377 | + ]); | |
| 378 | + | |
| 379 | + foreach ($conversation_history as &$message) { | |
| 380 | + if ($message['role'] === 'bot') { | |
| 381 | + $message['role'] = 'assistant'; | |
| 382 | + } | |
| 383 | + } | |
| 384 | + | |
| 385 | + $api_url = 'https://api.openai.com/v1/chat/completions'; | |
| 386 | + | |
| 387 | + $body = json_encode([ | |
| 388 | + 'model' => isset($this->options['model']) ? $this->options['model'] : 'gpt-3.5', | |
| 389 | + 'messages' => $conversation_history, | |
| 390 | + ]); | |
| 391 | + | |
| 392 | + $args = [ | |
| 393 | + 'body' => $body, | |
| 394 | + 'headers' => [ | |
| 395 | + 'Content-Type' => 'application/json', | |
| 396 | + 'Authorization' => 'Bearer ' . $api_key, | |
| 397 | + ], | |
| 398 | + 'timeout' => 60, | |
| 399 | + 'redirection' => 5, | |
| 400 | + 'blocking' => true, | |
| 401 | + 'httpversion' => '1.0', | |
| 402 | + 'sslverify' => true, | |
| 403 | + ]; | |
| 404 | + | |
| 405 | + $response = wp_remote_post($api_url, $args); | |
| 406 | + | |
| 407 | + if (is_wp_error($response)) { | |
| 408 | + return "Sorry, there was an error processing your request."; | |
| 409 | + } | |
| 410 | + | |
| 411 | + $response_body = json_decode(wp_remote_retrieve_body($response), true); | |
| 412 | + | |
| 413 | + if (isset($response_body['choices'][0]['message']['content'])) { | |
| 414 | + if (isset($response_body['usage'])) { | |
| 415 | + $prompt_tokens = $response_body['usage']['prompt_tokens']; | |
| 416 | + $total_tokens = $response_body['usage']['total_tokens']; | |
| 417 | + } | |
| 418 | + return trim($response_body['choices'][0]['message']['content']); | |
| 419 | + } else { | |
| 420 | + return "Sorry, I couldn't process that request."; | |
| 421 | + } | |
| 422 | +} | |
| 423 | + | |
| 424 | + | |
| 425 | +public function mxchat_dismiss_pre_chat_message() { | |
| 426 | + // Get and sanitize the user identifier | |
| 427 | + $user_id = $this->mxchat_get_user_identifier(); | |
| 428 | + $user_id = sanitize_key($user_id); | |
| 429 | + | |
| 430 | + // Set a transient to track that the user has dismissed the pre-chat message | |
| 431 | + $transient_key = 'mxchat_pre_chat_message_dismissed_' . $user_id; | |
| 432 | + set_transient($transient_key, true, DAY_IN_SECONDS); | |
| 433 | + | |
| 434 | + wp_send_json_success(); | |
| 435 | +} | |
| 436 | + | |
| 437 | + | |
| 438 | + | |
| 439 | + private function mxchat_calculate_cosine_similarity($vectorA, $vectorB) { | |
| 440 | + if (!is_array($vectorA) || !is_array($vectorB) || empty($vectorA) || empty($vectorB)) { | |
| 441 | + return 0; | |
| 442 | + } | |
| 443 | + | |
| 444 | + $dotProduct = array_sum(array_map(function ($a, $b) { | |
| 445 | + return $a * $b; | |
| 446 | + }, $vectorA, $vectorB)); | |
| 447 | + $normA = sqrt(array_sum(array_map(function ($a) { | |
| 448 | + return $a * $a; | |
| 449 | + }, $vectorA))); | |
| 450 | + $normB = sqrt(array_sum(array_map(function ($b) { | |
| 451 | + return $b * $b; | |
| 452 | + }, $vectorB))); | |
| 453 | + | |
| 454 | + if ($normA == 0 || $normB == 0) { | |
| 455 | + return 0; | |
| 456 | + } | |
| 457 | + | |
| 458 | + return $dotProduct / ($normA * $normB); | |
| 459 | + } | |
| 460 | + | |
| 461 | + public function mxchat_enqueue_scripts_styles() { | |
| 462 | + // Define version numbers for the styles and scripts | |
| 463 | + $chat_style_version = '1.0.8'; // Replace with your actual version | |
| 464 | + $chat_script_version = '1.0.8'; // Replace with your actual version | |
| 465 | + | |
| 466 | + // Correct path to the script file | |
| 467 | + wp_enqueue_script( | |
| 468 | + 'mxchat-chat-js', // Handle for the script | |
| 469 | + plugin_dir_url(__FILE__) . '../js/chat-script.js', // Correct path using __FILE__ | |
| 470 | + array('jquery'), // Dependencies | |
| 471 | + $chat_script_version, // Version for cache busting | |
| 472 | + true // Load script in footer | |
| 473 | + ); | |
| 474 | + | |
| 475 | + // Enqueue the CSS file similarly | |
| 476 | + wp_enqueue_style( | |
| 477 | + 'mxchat-chat-css', // Handle for the style | |
| 478 | + plugin_dir_url(__FILE__) . '../css/chat-style.css', // Correct path using __FILE__ | |
| 479 | + array(), // No dependencies | |
| 480 | + $chat_style_version // Version for cache busting | |
| 481 | + ); | |
| 482 | + | |
| 483 | + // Fetch options from the database | |
| 484 | + $this->options = get_option('mxchat_options'); | |
| 485 | + | |
| 486 | + // Prepare settings to pass to JavaScript | |
| 487 | + $style_settings = array( | |
| 488 | + 'ajax_url' => admin_url('admin-ajax.php'), | |
| 489 | + 'nonce' => wp_create_nonce('mxchat_chat_nonce'), // Nonce for security | |
| 490 | + 'rate_limit_message' => 'Rate limit exceeded. Please try again later.', | |
| 491 | + 'appendWidgetToBody' => $this->options['append_to_body'] ?? 'off' | |
| 492 | + ); | |
| 493 | + | |
| 494 | + // Localize the script with necessary data | |
| 495 | + wp_localize_script('mxchat-chat-js', 'mxchatChat', $style_settings); | |
| 496 | + } | |
| 497 | + | |
| 498 | + | |
| 499 | + | |
| 500 | + public function mxchat_reset_rate_limits() { | |
| 501 | + global $wpdb; | |
| 502 | + | |
| 503 | + // Define a cache key pattern for rate limits | |
| 504 | + $cache_key_pattern = 'mxchat_chat_limit_%'; | |
| 505 | + | |
| 506 | + // Retrieve all option names matching the pattern | |
| 507 | + // phpcs:ignore WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.DirectQuery | |
| 508 | + $option_names = $wpdb->get_col("SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE 'mxchat_chat_limit_%'"); | |
| 509 | + | |
| 510 | + // db call ok; no-cache ok | |
| 511 | + // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery -- db call ok | |
| 512 | + $wpdb->query("DELETE FROM {$wpdb->options} WHERE option_name LIKE 'mxchat_chat_limit_%'"); | |
| 513 | + | |
| 514 | + // Clear the relevant cache entries | |
| 515 | + foreach ($option_names as $option_name) { | |
| 516 | + wp_cache_delete($option_name, 'options'); | |
| 517 | + } | |
| 518 | + | |
| 519 | + // Optionally, clear a general cache if you have one | |
| 520 | + wp_cache_delete('mxchat_all_chat_limits', 'options'); | |
| 521 | + } | |
| 522 | + | |
| 523 | + | |
| 524 | +private function mxchat_fetch_woocommerce_products() { | |
| 525 | + // Ensure WooCommerce is active | |
| 526 | + if (!class_exists('WooCommerce')) { | |
| 527 | + return []; | |
| 528 | + } | |
| 529 | + | |
| 530 | + $args = array( | |
| 531 | + 'post_type' => 'product', | |
| 532 | + 'post_status' => 'publish', | |
| 533 | + 'posts_per_page' => -1, | |
| 534 | + ); | |
| 535 | + | |
| 536 | + $products = get_posts($args); | |
| 537 | + $product_data = []; | |
| 538 | + | |
| 539 | + foreach ($products as $product) { | |
| 540 | + $product_id = $product->ID; | |
| 541 | + $product_obj = wc_get_product($product_id); | |
| 542 | + | |
| 543 | + $product_data[] = array( | |
| 544 | + 'id' => $product_id, | |
| 545 | + 'name' => $product_obj->get_name(), | |
| 546 | + 'description' => $product_obj->get_description(), | |
| 547 | + 'short_description' => $product_obj->get_short_description(), | |
| 548 | + 'url' => get_permalink($product_id), | |
| 549 | + 'price' => $product_obj->get_regular_price(), | |
| 550 | + 'sale_price' => $product_obj->get_sale_price(), | |
| 551 | + 'stock_status' => $product_obj->get_stock_status(), | |
| 552 | + 'sku' => $product_obj->get_sku(), | |
| 553 | + 'in_stock' => $product_obj->is_in_stock(), | |
| 554 | + 'total_sales' => $product_obj->get_total_sales(), | |
| 555 | + ); | |
| 556 | + } | |
| 557 | + | |
| 558 | + return $product_data; | |
| 559 | +} | |
| 560 | + | |
| 561 | + | |
| 562 | + | |
| 563 | + | |
| 564 | + | |
| 565 | + | |
| 566 | + | |
| 567 | +} | |
| 568 | +?> | |
