PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / trunk
MxChat – AI Chatbot & Content Generation for WordPress vtrunk
3.2.21 3.2.20 3.2.19 3.2.18 3.2.17 3.2.16 3.2.15 3.2.14 3.2.12 3.2.13 3.2.11 3.2.10 3.2.9 3.2.8 3.2.7 3.2.6 3.2.5 3.2.4 3.2.3 3.2.2 3.2.1 2.0.3 2.0.4 2.0.5 2.0.6 All 152 releases
← All changes | admin/class-ajax-handler.php +715 -35 3.2.6trunk View file →
@@ -27,8 +27,9 @@
27 27 private function mxchat_init_ajax_hooks() {
28 28 // Settings AJAX
29 29 add_action('wp_ajax_mxchat_save_setting', array($this, 'mxchat_save_setting_callback'));
30 30 add_action('wp_ajax_mxchat_save_prompts_setting', array($this, 'mxchat_save_prompts_setting_callback'));
31 + add_action('wp_ajax_mxchat_acf_toggle_group', array($this, 'mxchat_acf_toggle_group_callback'));
31 32 add_action('wp_ajax_migrate_pinecone_settings', array($this, 'ajax_migrate_pinecone_settings'));
32 33
33 34 // License AJAX
34 35 add_action('wp_ajax_mxchat_handle_activate_license', array($this, 'mxchat_handle_activate_license'));
@@ -48,13 +49,124 @@
48 49 add_action('wp_ajax_mxchat_clear_debug_log', array($this, 'mxchat_clear_debug_log_callback'));
49 50 add_action('wp_ajax_mxchat_export_settings', array($this, 'mxchat_export_settings_callback'));
50 51 add_action('wp_ajax_mxchat_reset_all_settings', array($this, 'mxchat_reset_all_settings_callback'));
51 52
53 + // Global rate-limit usage counter reset (admin-only, nonce-guarded)
54 + add_action('wp_ajax_mxchat_reset_global_rate_limit', array($this, 'mxchat_reset_global_rate_limit_callback'));
55 +
52 56 // Custom (OpenAI-compatible) Provider connection test
53 57 add_action('wp_ajax_mxchat_test_custom_provider', array($this, 'mxchat_test_custom_provider_callback'));
58 +
59 + // Built-in provider key validation — cheap per-provider auth check (plan-mxchat-20260623-c41f74)
60 + add_action('wp_ajax_mxchat_test_provider_key', array($this, 'mxchat_test_provider_key_callback'));
61 +
62 + // Custom Post Meta discovery scan for the KB whitelist picker (plan-mxchat-20260709-fe8e4e)
63 + add_action('wp_ajax_mxchat_scan_custom_meta_keys', array($this, 'mxchat_scan_custom_meta_keys_callback'));
54 64 }
55 65
56 66 /**
67 + * Discover non-ACF custom post-meta keys present on published public content, so the
68 + * KB → Custom Post Meta section can offer a click-to-add picker instead of a blind
69 + * "type the exact key you already know" textarea. plan-mxchat-20260709-fe8e4e.
70 + *
71 + * Bounded + button-triggered only (never on page load). Returns up to 50 keys by
72 + * frequency, each with a short sample value, so the owner can judge relevance before
73 + * whitelisting. Underscore-prefixed (protected/internal) keys are hidden unless the
74 + * caller opts in; ACF-managed keys are excluded so this picker never double-lists the
75 + * sibling ACF discovery picker on the same page.
76 + */
77 +public function mxchat_scan_custom_meta_keys_callback() {
78 + check_ajax_referer('mxchat_prompts_setting_nonce');
79 +
80 + if (!current_user_can('manage_options')) {
81 + wp_send_json_error(['message' => esc_html__('Unauthorized', 'mxchat')]);
82 + }
83 +
84 + global $wpdb;
85 +
86 + $include_internal = isset($_POST['include_internal']) && $_POST['include_internal'] === '1';
87 +
88 + // Restrict discovery to public post types (the content the KB actually embeds).
89 + $post_types = get_post_types(array('public' => true), 'names');
90 + if (empty($post_types)) {
91 + wp_send_json_success(array('keys' => array(), 'scanned' => 0));
92 + }
93 + $pt_placeholders = implode(',', array_fill(0, count($post_types), '%s'));
94 +
95 + // Build the set of ACF-managed meta keys to exclude. ACF stores, alongside each
96 + // value key `foo`, a reference key `_foo` whose value is the ACF field key
97 + // (`field_xxxxx`). Strip the leading underscore from every such reference key to
98 + // get the real meta key, and exclude those — the ACF picker on this page owns them.
99 + $acf_managed = array();
100 + $acf_refs = $wpdb->get_col(
101 + $wpdb->prepare(
102 + "SELECT DISTINCT meta_key FROM {$wpdb->postmeta} WHERE meta_key LIKE %s AND meta_value LIKE %s",
103 + $wpdb->esc_like('_') . '%',
104 + $wpdb->esc_like('field_') . '%'
105 + )
106 + );
107 + foreach ((array) $acf_refs as $ref_key) {
108 + if (strlen($ref_key) > 1 && $ref_key[0] === '_') {
109 + $acf_managed[substr($ref_key, 1)] = true;
110 + }
111 + }
112 +
113 + // Discover keys + counts + a sample value in one bounded aggregate query.
114 + // SUBSTRING(MIN(...)) keeps the sample selection ONLY_FULL_GROUP_BY-safe.
115 + $params = $post_types;
116 + $sql = "SELECT pm.meta_key AS mk, COUNT(*) AS n, SUBSTRING(MIN(pm.meta_value), 1, 200) AS sample
117 + FROM {$wpdb->postmeta} pm
118 + INNER JOIN {$wpdb->posts} p ON p.ID = pm.post_id
119 + WHERE p.post_status = 'publish'
120 + AND p.post_type IN ($pt_placeholders)
121 + AND pm.meta_key <> ''";
122 + if (!$include_internal) {
123 + $sql .= " AND pm.meta_key NOT LIKE %s";
124 + $params[] = $wpdb->esc_like('_') . '%';
125 + }
126 + $sql .= " GROUP BY pm.meta_key ORDER BY n DESC, pm.meta_key ASC LIMIT 200";
127 +
128 + // phpcs:ignore WordPress.DB.PreparedSQL — placeholders assembled above, values in $params.
129 + $rows = $wpdb->get_results($wpdb->prepare($sql, $params));
130 +
131 + $keys = array();
132 + foreach ((array) $rows as $row) {
133 + $mk = $row->mk;
134 + if (isset($acf_managed[$mk])) {
135 + continue; // already offered by the ACF picker
136 + }
137 +
138 + $raw = (string) $row->sample;
139 + if ($raw !== '' && (is_serialized($raw) || preg_match('/^(a:\d+:\{|O:\d+:"|s:\d+:")/', $raw))) {
140 + $sample = esc_html__('[structured value]', 'mxchat');
141 + } else {
142 + $sample = trim(preg_replace('/\s+/', ' ', $raw));
143 + if (function_exists('mb_strlen') ? mb_strlen($sample) > 60 : strlen($sample) > 60) {
144 + $sample = (function_exists('mb_substr') ? mb_substr($sample, 0, 60) : substr($sample, 0, 60)) . '…';
145 + }
146 + if ($sample === '') {
147 + $sample = esc_html__('(empty value)', 'mxchat');
148 + }
149 + }
150 +
151 + $keys[] = array(
152 + 'key' => $mk,
153 + 'count' => (int) $row->n,
154 + 'sample' => $sample,
155 + );
156 +
157 + if (count($keys) >= 50) {
158 + break;
159 + }
160 + }
161 +
162 + wp_send_json_success(array(
163 + 'keys' => $keys,
164 + 'scanned' => is_array($rows) ? count($rows) : 0,
165 + ));
166 +}
167 +
168 +/**
57 169 * Test connection to a Custom (OpenAI-compatible) provider by hitting its /models endpoint
58 170 * with whichever auth scheme the user configured. Reports model count or a clean error.
59 171 */
60 172 public function mxchat_test_custom_provider_callback() {
@@ -122,8 +234,122 @@
122 234 'count' => $count,
123 235 ));
124 236 }
125 237
238 +/**
239 + * Validate a BUILT-IN provider key with the lightest authenticated call per
240 + * provider (a /models or key-info GET — never a generation). Reads the posted
241 + * key value so the owner can test BEFORE saving; falls back to the saved option
242 + * when the field is empty. Mirrors mxchat_test_custom_provider_callback and the
243 + * add-on test buttons (cf5bd5 veo / 8d16f1 perplexity). The key is never logged.
244 + * plan-mxchat-20260623-c41f74.
245 + */
246 +public function mxchat_test_provider_key_callback() {
247 + check_ajax_referer('mxchat_test_provider_key');
248 + if (!current_user_can('manage_options')) {
249 + wp_send_json_error(array('message' => esc_html__('Unauthorized', 'mxchat')));
250 + }
251 +
252 + $provider = isset($_POST['provider']) ? sanitize_key(wp_unslash($_POST['provider'])) : '';
253 + $posted_key = isset($_POST['key']) ? trim((string) wp_unslash($_POST['key'])) : '';
254 +
255 + $option_map = array(
256 + 'openai' => 'api_key',
257 + 'xai' => 'xai_api_key',
258 + 'claude' => 'claude_api_key',
259 + 'deepseek' => 'deepseek_api_key',
260 + 'gemini' => 'gemini_api_key',
261 + 'openrouter' => 'openrouter_api_key',
262 + );
263 + if (!isset($option_map[$provider])) {
264 + wp_send_json_error(array('message' => esc_html__('Unknown provider.', 'mxchat')));
265 + }
266 +
267 + // Prefer the just-typed value (test-before-save); fall back to the saved key.
268 + $key = $posted_key;
269 + if ($key === '') {
270 + $options = get_option('mxchat_options', array());
271 + $key = isset($options[$option_map[$provider]]) ? trim((string) $options[$option_map[$provider]]) : '';
272 + }
273 + if ($key === '') {
274 + wp_send_json_error(array('message' => esc_html__('No API key entered or saved for this provider.', 'mxchat')));
275 + }
276 +
277 + // Lightest authenticated metadata call per provider — model-agnostic, no generation.
278 + $headers = array();
279 + switch ($provider) {
280 + case 'openai':
281 + $url = 'https://api.openai.com/v1/models';
282 + $headers = array('Authorization' => 'Bearer ' . $key);
283 + break;
284 + case 'xai':
285 + $url = 'https://api.x.ai/v1/models';
286 + $headers = array('Authorization' => 'Bearer ' . $key);
287 + break;
288 + case 'deepseek':
289 + $url = 'https://api.deepseek.com/models';
290 + $headers = array('Authorization' => 'Bearer ' . $key);
291 + break;
292 + case 'openrouter':
293 + // /auth/key validates the key itself (the public /models list does not).
294 + $url = 'https://openrouter.ai/api/v1/auth/key';
295 + $headers = array('Authorization' => 'Bearer ' . $key);
296 + break;
297 + case 'gemini':
298 + $url = add_query_arg(array('pageSize' => 1, 'key' => $key), 'https://generativelanguage.googleapis.com/v1beta/models');
299 + break;
300 + case 'claude':
301 + $url = 'https://api.anthropic.com/v1/models';
302 + $headers = array('x-api-key' => $key, 'anthropic-version' => '2023-06-01');
303 + break;
304 + default:
305 + wp_send_json_error(array('message' => esc_html__('Unknown provider.', 'mxchat')));
306 + }
307 +
308 + $response = wp_remote_get($url, array(
309 + 'headers' => $headers,
310 + 'timeout' => 10,
311 + ));
312 +
313 + if (is_wp_error($response)) {
314 + wp_send_json_error(array('message' => sprintf(esc_html__('Network error: %s', 'mxchat'), esc_html($response->get_error_message()))));
315 + }
316 +
317 + $code = (int) wp_remote_retrieve_response_code($response);
318 + if ($code >= 200 && $code < 300) {
319 + wp_send_json_success(array('message' => esc_html__('Key is valid.', 'mxchat')));
320 + }
321 +
322 + // Surface the provider's own error text when present (trimmed; key never echoed).
323 + $detail = '';
324 + $body = json_decode(wp_remote_retrieve_body($response), true);
325 + if (is_array($body)) {
326 + if (isset($body['error']['message'])) {
327 + $detail = $body['error']['message'];
328 + } elseif (isset($body['error']) && is_string($body['error'])) {
329 + $detail = $body['error'];
330 + } elseif (isset($body['message'])) {
331 + $detail = $body['message'];
332 + }
333 + }
334 + $detail = trim((string) $detail);
335 + if (strlen($detail) > 200) {
336 + $detail = substr($detail, 0, 200) . '…';
337 + }
338 +
339 + if ($code === 401 || $code === 403) {
340 + $msg = ($detail !== '')
341 + ? sprintf(esc_html__('Key rejected (HTTP %1$d): %2$s', 'mxchat'), $code, esc_html($detail))
342 + : sprintf(esc_html__('Key rejected (HTTP %d). Check the API key.', 'mxchat'), $code);
343 + wp_send_json_error(array('message' => $msg));
344 + }
345 +
346 + $msg = ($detail !== '')
347 + ? sprintf(esc_html__('Provider returned HTTP %1$d: %2$s', 'mxchat'), $code, esc_html($detail))
348 + : sprintf(esc_html__('Provider returned HTTP %d.', 'mxchat'), $code);
349 + wp_send_json_error(array('message' => $msg));
350 +}
351 +
126 352 // ========================================
127 353 // SETTINGS AJAX HANDLERS
128 354 // ========================================
129 355
@@ -137,10 +363,10 @@
137 363 wp_send_json_error(['message' => esc_html__('Unauthorized', 'mxchat')]);
138 364 }
139 365
140 366 $name = isset($_POST['name']) ? $_POST['name'] : '';
141 - // Strip slashes from the value before saving
142 - $value = isset($_POST['value']) ? stripslashes($_POST['value']) : '';
367 + // Remove WP's added slashes before saving (wp_unslash is the canonical form; plan-3f8158).
368 + $value = isset($_POST['value']) ? wp_unslash($_POST['value']) : '';
143 369
144 370 //error_log('MXChat Save: Processing field name: ' . $name);
145 371 //error_log('MXChat Save: Field value: ' . $value);
146 372
@@ -161,8 +387,113 @@
161 387 }
162 388
163 389 // Handle special cases
164 390 switch ($field_name) {
391 + // Editor Assistant enable toggle (plan-8cb0cb). STANDALONE option — NOT part
392 + // of mxchat_options, so it skips the mxchat_sanitize strip-trap entirely. Save
393 + // it directly and short-circuit (mirrors the mxchat_transcripts_options pattern
394 + // below); never falls through to the generic mxchat_options save. Default OFF.
395 + case 'mxchat_editor_assistant_enabled':
396 + $ea_value = ($value === 'on' || $value === '1') ? 'on' : 'off';
397 + update_option('mxchat_editor_assistant_enabled', $ea_value);
398 + wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
399 + return;
400 +
401 + // Smart asset loading toggle (plan-915355). STANDALONE option, same
402 + // reasoning as the Editor Assistant case above — saved directly and
403 + // short-circuited so it never touches mxchat_options / mxchat_sanitize.
404 + // Default OFF (opt-in performance optimization).
405 + case 'mxchat_smart_asset_loading':
406 + $sal_value = ($value === 'on' || $value === '1') ? 'on' : 'off';
407 + update_option('mxchat_smart_asset_loading', $sal_value);
408 + wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
409 + return;
410 +
411 + // Hybrid keyword boost toggle (plan-38ffa1). STANDALONE option, same
412 + // pattern. Enabling runs capability detection HERE, at admin-save time —
413 + // building the FULLTEXT index during a visitor's chat request is not
414 + // acceptable, and detection is a one-time cost the admin can wait on.
415 + case 'mxchat_hybrid_keyword_toggle':
416 + $hkb_value = ($value === 'on' || $value === '1') ? 'on' : 'off';
417 + update_option('mxchat_hybrid_keyword_toggle', $hkb_value);
418 + if ($hkb_value === 'on') {
419 + MxChat_Utils::mxchat_hybrid_detect_capability(true);
420 + }
421 + wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
422 + return;
423 +
424 + // ACF→PDF import-time extraction (plan 11720c). STANDALONE option, same
425 + // pattern. Moved from a per-import modal checkbox to an install-level
426 + // setting on Knowledge → ACF Fields. Stored '1'/'0' to match the
427 + // knowledge page's sibling toggles. Default OFF.
428 + case 'mxchat_acf_pdf_extraction':
429 + $apx_value = ($value === 'on' || $value === '1') ? '1' : '0';
430 + update_option('mxchat_acf_pdf_extraction', $apx_value);
431 + wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
432 + return;
433 +
434 + // In-chat YouTube card: master switch + its own confidence floor
435 + // (plan f52492). STANDALONE options, same pattern as the cases above.
436 + // Default ON — the card already ships, so this is an opt-OUT.
437 + case 'mxchat_video_embed_enabled':
438 + $vce_value = ($value === 'on' || $value === '1') ? 'on' : 'off';
439 + update_option('mxchat_video_embed_enabled', $vce_value);
440 + wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
441 + return;
442 +
443 + // Clamped to the same 20-95 the field advertises. An out-of-range or
444 + // non-numeric POST is corrected rather than refused, and the corrected
445 + // value is echoed back so the field can reconcile — a silently stored
446 + // 0 here would put a video on every answer, which is the bug.
447 + case 'mxchat_video_embed_threshold':
448 + $vct_value = is_numeric($value)
449 + ? (int) $value
450 + : MXCHAT_VIDEO_EMBED_THRESHOLD_DEFAULT;
451 + if ($vct_value < 20) { $vct_value = 20; }
452 + if ($vct_value > 95) { $vct_value = 95; }
453 + update_option('mxchat_video_embed_threshold', $vct_value);
454 + wp_send_json_success([
455 + 'message' => esc_html__('Setting saved', 'mxchat'),
456 + 'value' => $vct_value,
457 + ]);
458 + return;
459 +
460 + // Live-agent availability schedules (plans 8ccaa2 + 99d7a4). STANDALONE
461 + // options, same reasoning as the Editor Assistant case above — nested
462 + // structures that mxchat_sanitize() would strip on the next autosave of any
463 + // other field. Each channel's value arrives as JSON from its own hidden
464 + // input, which that channel's schedule editor keeps in sync; the class owns
465 + // all validation. The bare legacy name is kept as a defense against a
466 + // browser still running pre-split cached admin JS: that UI edited "both
467 + // channels" as one, so its save writes both.
468 + case 'live_agent_schedule_slack':
469 + case 'live_agent_schedule_telegram':
470 + case 'live_agent_schedule_webhook':
471 + case 'live_agent_schedule':
472 + if (!class_exists('MxChat_Live_Agent_Schedule')) {
473 + wp_send_json_error(['message' => esc_html__('Schedule unavailable', 'mxchat')]);
474 + return;
475 + }
476 + $decoded = json_decode($value, true);
477 + if (!is_array($decoded)) {
478 + wp_send_json_error(['message' => esc_html__('Invalid schedule', 'mxchat')]);
479 + return;
480 + }
481 + $channels = ($field_name === 'live_agent_schedule')
482 + ? array('slack', 'telegram')
483 + : array(substr($field_name, strlen('live_agent_schedule_')));
484 + $saved_schedule = null;
485 + foreach ($channels as $schedule_channel) {
486 + $saved_schedule = MxChat_Live_Agent_Schedule::save($schedule_channel, $decoded);
487 + }
488 + // Echo the normalized result so the editor can reconcile if it ever
489 + // disagrees with the server (e.g. a time the class rejected).
490 + wp_send_json_success([
491 + 'message' => esc_html__('Setting saved', 'mxchat'),
492 + 'schedule' => $saved_schedule,
493 + ]);
494 + return;
495 +
165 496 case 'model':
166 497 //error_log('MXChat Save: Processing model selection');
167 498 //error_log('MXChat Save: Model value received: ' . $value);
168 499 //error_log('MXChat Save: Value type: ' . gettype($value));
@@ -174,23 +505,15 @@
174 505 //error_log('MXChat Save: Setting model to openrouter');
175 506 $options['model'] = 'openrouter';
176 507 } else {
177 508 //error_log('MXChat Save: Checking against whitelist');
178 - // Keep in sync with the Settings-API sanitize allow-list in
179 - // includes/class-mxchat-admin.php (mxchat_options_validate).
180 - $allowed_models = array(
181 - 'gemini-3-pro-preview', 'gemini-3-flash-preview', 'gemini-2.5-pro', 'gemini-2.5-flash', 'gemini-2.5-flash-lite',
182 - 'gemini-2.0-flash', 'gemini-2.0-flash-lite', 'gemini-1.5-pro', 'gemini-1.5-flash',
183 - 'grok-4-0709', 'grok-4-1-fast-reasoning', 'grok-4-1-fast-non-reasoning', 'grok-3-beta', 'grok-3-fast-beta', 'grok-3-mini-beta',
184 - 'grok-3-mini-fast-beta', 'grok-2',
185 - 'deepseek-chat',
186 - 'claude-opus-4-7', 'claude-opus-4-6', 'claude-opus-4-5', 'claude-sonnet-4-6',
187 - 'claude-sonnet-4-5-20250929', 'claude-opus-4-1-20250805', 'claude-haiku-4-5-20251001',
188 - 'claude-opus-4-20250514', 'claude-sonnet-4-20250514',
189 - 'gpt-5.5', 'gpt-5.4', 'gpt-5.4-mini', 'gpt-5.4-nano', 'gpt-5.3-chat-latest',
190 - 'gpt-5.2', 'gpt-5.1-chat-latest', 'gpt-5.1-2025-11-13', 'gpt-5', 'gpt-5-mini', 'gpt-5-nano',
191 - 'custom-provider',
192 - );
509 + // Catalog refactor (plan-d14e89): canonical allowlist lives in
510 + // includes/class-mxchat-model-catalog.php. A new chat model
511 + // added there is automatically accepted by autosave.
512 + if (!class_exists('MxChat_Model_Catalog')) {
513 + require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-mxchat-model-catalog.php';
514 + }
515 + $allowed_models = MxChat_Model_Catalog::chat_model_ids();
193 516
194 517 //error_log('MXChat Save: in_array result: ' . (in_array($value, $allowed_models) ? 'YES' : 'NO'));
195 518
196 519 if (in_array($value, $allowed_models)) {
@@ -242,8 +565,15 @@
242 565 //error_log('MXChat Save: Processing email_blocker_header_content');
243 566 // Allow HTML content but sanitize it safely
244 567 $options[$field_name] = wp_kses_post($value);
245 568 break;
569 + case 'intro_message':
570 + // Stored-XSS hardening (Wordfence CWE-79, plan-3f8158): sanitize on save as
571 + // defense in depth. wp_kses_post mirrors mxchat_sanitize() (the options.php
572 + // save path) so both save routes treat intro_message identically and strip
573 + // <script>/</textarea> breakout while keeping basic formatting + {visitor_name}.
574 + $options[$field_name] = wp_kses_post($value);
575 + break;
246 576 case 'email_blocker_button_text':
247 577 //error_log('MXChat Save: Processing email_blocker_button_text');
248 578 $options[$field_name] = sanitize_text_field($value);
249 579 break;
@@ -250,8 +580,13 @@
250 580 case 'name_field_placeholder':
251 581 //error_log('MXChat Save: Processing name_field_placeholder');
252 582 $options[$field_name] = sanitize_text_field($value);
253 583 break;
584 + case 'consent_checkbox_label':
585 + // b062c4 — same allowlist as the options.php save path and the
586 + // widget render, so the stored label always equals the shown label.
587 + $options[$field_name] = MxChat_Utils::sanitize_consent_label($value);
588 + break;
254 589 case 'similarity_threshold':
255 590 //error_log('MXChat Save: Processing similarity_threshold');
256 591 // Validate and save - enforce min 20, max 85
257 592 $threshold = intval($value);
@@ -278,8 +613,49 @@
278 613 //error_log('MXChat Save: Processing live_agent_status');
279 614 // Set the new value
280 615 $options[$field_name] = ($value === 'on') ? 'on' : 'off';
281 616 break;
617 + // Shared handoff channel (plan 1a2666): re-probe the channel's privacy
618 + // at configuration time so the settings screen can warn about private
619 + // channels (their inbound events arrive as message.groups, which the
620 + // documented app setup never subscribes to). Only id-shaped values can
621 + // be checked before the first handoff resolves a #name — the handoff
622 + // path probes those when it caches the resolved id.
623 + case 'live_agent_shared_channel':
624 + $options[$field_name] = sanitize_text_field($value);
625 + delete_option('mxchat_slack_shared_channel_privacy');
626 + $shared_channel_target = ltrim(trim((string) $options[$field_name]), '#');
627 + if ($shared_channel_target !== '' && preg_match('/^[CG][A-Z0-9]{6,}$/', $shared_channel_target)) {
628 + if (!class_exists('MxChat_Integrator')) {
629 + require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-mxchat-integrator.php';
630 + }
631 + MxChat_Integrator::mxchat_probe_slack_channel_privacy(
632 + $options['live_agent_bot_token'] ?? '',
633 + $shared_channel_target,
634 + trim((string) $options[$field_name])
635 + );
636 + }
637 + break;
638 + // Webhook handoff destination (plan d88e22). Status normalized like the
639 + // other channel toggles; the URL is refused outright when it isn't
640 + // https so the admin hears about it at save time instead of the
641 + // handoff silently never firing.
642 + case 'webhook_handoff_status':
643 + $options[$field_name] = ($value === 'on') ? 'on' : 'off';
644 + break;
645 + case 'webhook_handoff_url':
646 + $wh_url = trim((string) $value);
647 + if ($wh_url === '') {
648 + $options[$field_name] = '';
649 + break;
650 + }
651 + $wh_clean = esc_url_raw($wh_url, array('https'));
652 + if ($wh_clean === '' || stripos($wh_clean, 'https://') !== 0) {
653 + wp_send_json_error(['message' => esc_html__('Webhook URL must start with https://', 'mxchat')]);
654 + return;
655 + }
656 + $options[$field_name] = $wh_clean;
657 + break;
282 658 case 'enable_web_search':
283 659 //error_log('MXChat Save: Processing enable_web_search');
284 660 $options[$field_name] = ($value === 'on') ? 'on' : 'off';
285 661 break;
@@ -307,8 +683,12 @@
307 683 // Validate script loading strategy value
308 684 $allowed_strategies = array('default', 'defer', 'delay_1s', 'delay_3s', 'delay_5s', 'on_interaction');
309 685 $options[$field_name] = in_array($value, $allowed_strategies) ? $value : 'default';
310 686 break;
687 + case 'auto_retry_on_transient_error':
688 + // Boolean toggle — accept 1/0/on/off, default to '1' if any truthy value.
689 + $options[$field_name] = ($value === '1' || $value === 'on' || $value === 1 || $value === true) ? '1' : '0';
690 + break;
311 691 default:
312 692 // Handle transcripts options
313 693 if (strpos($name, 'mxchat_transcripts_options') !== false) {
314 694 // Extract field name from mxchat_transcripts_options[field_name]
@@ -323,9 +703,16 @@
323 703 $transcripts_options = array();
324 704 }
325 705
326 706 // Handle checkbox values (convert 'on'/'off' to 1/0)
327 - if ($value === 'on' || $value === '1') {
707 + if ($field_name === 'mxchat_retention_days') {
708 + // Number field, NOT a checkbox — without this branch a
709 + // value of '1' would hit the 'on'/'1' coercion below
710 + // (harmlessly) but nothing would clamp: this direct-DB
711 + // path bypasses the registered sanitiser and its
712 + // 0-3650 clamp entirely (plan-3c3338).
713 + $transcripts_options[$field_name] = max(0, min(3650, (int) $value));
714 + } else if ($value === 'on' || $value === '1') {
328 715 $transcripts_options[$field_name] = 1;
329 716 } else if ($value === 'off' || $value === '0' || $value === '') {
330 717 $transcripts_options[$field_name] = 0;
331 718 } else {
@@ -330,9 +717,20 @@
330 717 $transcripts_options[$field_name] = 0;
331 718 } else {
332 719 // For text/select fields, sanitize appropriately
333 720 if ($field_name === 'mxchat_notification_email') {
334 - $transcripts_options[$field_name] = sanitize_email($value);
721 + // sanitize_email() alone CANNOT validate this field: given
722 + // "a@x.com, b@y.com" it returns the single concatenated
723 + // address "a@x.comby.com", which is_email() then accepts.
724 + // That is how two addresses used to be stored as one dead
725 + // one, silently. MxChat_Utils validates the raw parts first
726 + // and refuses the whole list if any of them is bad.
727 + $parsed = MxChat_Utils::parse_notification_emails($value);
728 + if ($parsed['error'] !== '') {
729 + // Reject: the previously stored value stays untouched.
730 + wp_send_json_error(array('message' => $parsed['error']));
731 + }
732 + $transcripts_options[$field_name] = implode(', ', $parsed['emails']);
335 733 } else {
336 734 $transcripts_options[$field_name] = sanitize_text_field($value);
337 735 }
338 736 }
@@ -376,8 +774,48 @@
376 774 wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
377 775 return;
378 776 }
379 777 }
778 + // Whole-chatbot global cap (sits in mxchat_options['rate_limits_global']).
779 + // Field names: mxchat_options[rate_limits_global][limit|timeframe|limit_custom]
780 + else if (strpos($name, 'mxchat_options[rate_limits_global]') !== false) {
781 + preg_match('/\[rate_limits_global\]\[(.*?)\]/', $name, $matches);
782 + if (isset($matches[1])) {
783 + $setting_key = $matches[1];
784 + if (!isset($options['rate_limits_global']) || !is_array($options['rate_limits_global'])) {
785 + $options['rate_limits_global'] = array('limit' => 'unlimited', 'timeframe' => 'daily');
786 + }
787 + if ($setting_key === 'limit') {
788 + // Selection from the preset dropdown. If __custom__, resolve from limit_custom; otherwise store directly.
789 + if ($value === '__custom__') {
790 + $custom = isset($options['rate_limits_global']['limit_custom']) ? (string) $options['rate_limits_global']['limit_custom'] : '';
791 + if ($custom !== '' && ctype_digit($custom) && (int) $custom >= 1) {
792 + $options['rate_limits_global']['limit'] = $custom;
793 + }
794 + // else leave existing limit untouched until the custom value arrives
795 + } else {
796 + $options['rate_limits_global']['limit'] = $value;
797 + }
798 + } elseif ($setting_key === 'limit_custom') {
799 + $clean = preg_replace('/[^0-9]/', '', (string) $value);
800 + $options['rate_limits_global']['limit_custom'] = $clean;
801 + // Mirror a valid custom value into limit UNCONDITIONALLY (plan-74eb86).
802 + // The custom number input is only editable when the dropdown is on
803 + // "Custom…" (the toggle JS hides it for presets/unlimited) and autosave
804 + // sends one field per change event, so a limit_custom change only fires
805 + // in custom mode — there is no preset to clobber. The old guard required
806 + // limit to already be non-preset, which it isn't on a first-time custom
807 + // entry (the limit=__custom__ event arrives before limit_custom is set),
808 + // so the value never landed in limit on the first save and reverted on refresh.
809 + if ($clean !== '' && (int) $clean >= 1) {
810 + $options['rate_limits_global']['limit'] = $clean;
811 + }
812 + } elseif ($setting_key === 'timeframe') {
813 + $allowed_tf = array('hourly','daily','weekly','monthly');
814 + $options['rate_limits_global']['timeframe'] = in_array($value, $allowed_tf, true) ? $value : 'daily';
815 + }
816 + }
817 + }
380 818 // First check for rate limits settings
381 819 else if (strpos($name, 'mxchat_options[rate_limits]') !== false) {
382 820 //error_log('MXChat Save: Detected rate_limits field: ' . $name);
383 821
@@ -386,9 +824,9 @@
386 824 //error_log('MXChat Save: Regex matches: ' . print_r($matches, true));
387 825
388 826 if (isset($matches[1]) && isset($matches[2])) {
389 827 $role_id = $matches[1];
390 - $setting_key = $matches[2]; // limit, timeframe, or message
828 + $setting_key = $matches[2]; // limit, timeframe, message, or limit_custom
391 829
392 830 //error_log('MXChat Save: Role ID = ' . $role_id . ', Setting Key = ' . $setting_key);
393 831
394 832 // Initialize rate_limits if it doesn't exist
@@ -406,10 +844,32 @@
406 844 'message' => 'Rate limit exceeded. Please try again later.'
407 845 ];
408 846 }
409 847
410 - // Update the specific setting
411 - $options['rate_limits'][$role_id][$setting_key] = $value;
848 + if ($setting_key === 'limit') {
849 + if ($value === '__custom__') {
850 + // Pull the integer from limit_custom that may have arrived (or will arrive).
851 + $custom = isset($options['rate_limits'][$role_id]['limit_custom']) ? (string) $options['rate_limits'][$role_id]['limit_custom'] : '';
852 + if ($custom !== '' && ctype_digit($custom) && (int) $custom >= 1) {
853 + $options['rate_limits'][$role_id]['limit'] = $custom;
854 + }
855 + } else {
856 + $options['rate_limits'][$role_id]['limit'] = $value;
857 + }
858 + } elseif ($setting_key === 'limit_custom') {
859 + $clean = preg_replace('/[^0-9]/', '', (string) $value);
860 + $options['rate_limits'][$role_id]['limit_custom'] = $clean;
861 + // Mirror a valid custom value into limit UNCONDITIONALLY — same reasoning
862 + // as the global branch above (plan-74eb86). The per-role custom input is
863 + // only editable in custom mode and autosave is one-field-per-change, so
864 + // this never clobbers a preset; it fixes the first-time-save revert.
865 + if ($clean !== '' && (int) $clean >= 1) {
866 + $options['rate_limits'][$role_id]['limit'] = $clean;
867 + }
868 + } else {
869 + // Update the specific setting (timeframe, message)
870 + $options['rate_limits'][$role_id][$setting_key] = $value;
871 + }
412 872 //error_log('MXChat Save: Updated rate_limits[' . $role_id . '][' . $setting_key . '] = ' . $value);
413 873 } else {
414 874 //error_log('MXChat Save: Failed to parse rate_limits pattern: ' . $name);
415 875 }
@@ -447,10 +907,14 @@
447 907 'contextual_awareness_toggle',
448 908 'citation_links_toggle',
449 909 'enable_email_block',
450 910 'enable_name_field',
911 + 'enable_consent_checkbox',
912 + 'consent_checkbox_required',
451 913 'custom_provider_for_embeddings',
452 - 'custom_provider_for_images'
914 + 'custom_provider_for_images',
915 + 'print_button_enabled',
916 + 'reset_chat_enabled'
453 917 ])) {
454 918 //error_log('MXChat Save: Processing toggle: ' . $field_name);
455 919 $options[$field_name] = ($value === 'on') ? 'on' : 'off';
456 920 } else {
@@ -593,8 +1057,14 @@
593 1057 if ($field_name === 'mxchat_pinecone_host') {
594 1058 $new_value = str_replace(['https://', 'http://'], '', $new_value);
595 1059 }
596 1060 break;
1061 + case 'mxchat_pinecone_top_k':
1062 + // d0cae1: out-of-range and junk normalize to the default 50 —
1063 + // same clamp the read site applies.
1064 + $top_k = absint($value);
1065 + $new_value = (string) (($top_k >= 1 && $top_k <= 1000) ? $top_k : 50);
1066 + break;
597 1067 default:
598 1068 wp_send_json_error(['message' => esc_html__('Unknown Pinecone field', 'mxchat')]);
599 1069 }
600 1070
@@ -624,14 +1094,16 @@
624 1094 );
625 1095 //error_log('[MXCHAT-PROMPTS] Updated existing option, result: ' . ($save_result !== false ? 'SUCCESS' : 'FAILED'));
626 1096 } else {
627 1097 // Insert new option
1098 + // Credential option — must NOT autoload (holds the Pinecone secret;
1099 + // autoloaded rows are read into memory on every request).
628 1100 $save_result = $wpdb->insert(
629 1101 $wpdb->options,
630 1102 array(
631 1103 'option_name' => 'mxchat_pinecone_addon_options',
632 1104 'option_value' => $serialized_options,
633 - 'autoload' => 'yes'
1105 + 'autoload' => 'off'
634 1106 ),
635 1107 array('%s', '%s', '%s')
636 1108 );
637 1109 //error_log('[MXCHAT-PROMPTS] Inserted new option, result: ' . ($save_result !== false ? 'SUCCESS' : 'FAILED'));
@@ -749,10 +1221,18 @@
749 1221 }
750 1222
751 1223 // Handle ACF field exclusion toggles
752 1224 if (strpos($name, 'mxchat_acf_field_') === 0) {
753 - // Extract field name from the input name (e.g., mxchat_acf_field_private_notes -> private_notes)
754 - $field_name = str_replace('mxchat_acf_field_', '', $name);
1225 + // The identifier after the prefix is the ACF field KEY (unique per
1226 + // field), not the field name — names are shared across groups and
1227 + // collide (plan 30e81f). Reject anything that isn't key-shaped so a
1228 + // stale pre-3.2.20 page (or its exit beacon) posting a bare name
1229 + // can't write junk into the key-based list.
1230 + $field_key = str_replace('mxchat_acf_field_', '', $name);
1231 + if (!preg_match('/^field_[A-Za-z0-9_\-]+$/', $field_key)) {
1232 + wp_send_json_error(['message' => esc_html__('Invalid ACF field identifier', 'mxchat')]);
1233 + return;
1234 + }
755 1235 $is_enabled = ($value === 'on' || $value === '1');
756 1236
757 1237 // Get current excluded fields
758 1238 $excluded_fields = get_option('mxchat_acf_excluded_fields', array());
@@ -761,13 +1241,19 @@
761 1241 }
762 1242
763 1243 if ($is_enabled) {
764 1244 // Remove from exclusion list (field should be included)
765 - $excluded_fields = array_values(array_diff($excluded_fields, array($field_name)));
1245 + $excluded_fields = array_values(array_diff($excluded_fields, array($field_key)));
1246 + // Lazy legacy-name conversion: if this field's NAME is still
1247 + // stored (its group was inactive when the 30e81f migration
1248 + // ran), including this one field must not silently include
1249 + // its same-named twins — swap the name entry for the keys of
1250 + // every OTHER field currently wearing that name.
1251 + $excluded_fields = $this->mxchat_expand_legacy_acf_name_entry($excluded_fields, $field_key);
766 1252 } else {
767 1253 // Add to exclusion list (field should be excluded)
768 - if (!in_array($field_name, $excluded_fields)) {
769 - $excluded_fields[] = $field_name;
1254 + if (!in_array($field_key, $excluded_fields, true)) {
1255 + $excluded_fields[] = $field_key;
770 1256 }
771 1257 }
772 1258
773 1259 $updated = update_option('mxchat_acf_excluded_fields', $excluded_fields);
@@ -774,10 +1260,10 @@
774 1260
775 1261 if ($updated || true) { // Always report success since the state may already be correct
776 1262 wp_send_json_success([
777 1263 'message' => $is_enabled
778 - ? sprintf(esc_html__('Field "%s" will be included in imports', 'mxchat'), $field_name)
779 - : sprintf(esc_html__('Field "%s" will be excluded from imports', 'mxchat'), $field_name)
1264 + ? esc_html__('Field will be included in imports', 'mxchat')
1265 + : esc_html__('Field will be excluded from imports', 'mxchat')
780 1266 ]);
781 1267 } else {
782 1268 wp_send_json_error(['message' => esc_html__('Failed to save ACF field setting', 'mxchat')]);
783 1269 }
@@ -797,12 +1283,12 @@
797 1283 }
798 1284 return;
799 1285 }
800 1286
801 - // Handle other prompts options
1287 + // Handle other prompts options (autoload false — can hold the Pinecone secret)
802 1288 $options = get_option('mxchat_prompts_options', []);
803 1289 $options[$name] = $value;
804 - $updated = update_option('mxchat_prompts_options', $options);
1290 + $updated = update_option('mxchat_prompts_options', $options, false);
805 1291
806 1292 if ($updated) {
807 1293 wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
808 1294 } else {
@@ -809,10 +1295,130 @@
809 1295 wp_send_json_error(['message' => esc_html__('No changes detected', 'mxchat')]);
810 1296 }
811 1297 }
812 1298
1299 + /**
1300 + * If the field behind $included_key still has its NAME stored in the
1301 + * exclusion list (a legacy entry the 30e81f migration could not resolve
1302 + * because the group was inactive), replace that name with the keys of
1303 + * every OTHER current field wearing it. Including one field must never
1304 + * silently include its same-named twins — that would be the original
1305 + * collision bug in reverse, in the unsafe (privacy-losing) direction.
1306 + */
1307 + private function mxchat_expand_legacy_acf_name_entry($excluded_fields, $included_key) {
1308 + if (!function_exists('acf_get_field')) {
1309 + return $excluded_fields;
1310 + }
1311 + $field = acf_get_field($included_key);
1312 + if (!$field || empty($field['name'])) {
1313 + return $excluded_fields;
1314 + }
1315 + $field_name = $field['name'];
1316 + if (!in_array($field_name, $excluded_fields, true)) {
1317 + return $excluded_fields;
1318 + }
1319 + $excluded_fields = array_values(array_diff($excluded_fields, array($field_name)));
1320 + foreach ($this->mxchat_acf_keys_for_name($field_name) as $twin_key) {
1321 + if ($twin_key !== $included_key && !in_array($twin_key, $excluded_fields, true)) {
1322 + $excluded_fields[] = $twin_key;
1323 + }
1324 + }
1325 + return $excluded_fields;
1326 + }
813 1327
814 1328 /**
1329 + * Keys of every currently-registered top-level ACF field with this name.
1330 + */
1331 + private function mxchat_acf_keys_for_name($field_name) {
1332 + $keys = array();
1333 + if (!function_exists('acf_get_field_groups') || !function_exists('acf_get_fields')) {
1334 + return $keys;
1335 + }
1336 + foreach (acf_get_field_groups() as $group) {
1337 + $group_fields = acf_get_fields($group['key']);
1338 + if (empty($group_fields)) {
1339 + continue;
1340 + }
1341 + foreach ($group_fields as $field) {
1342 + if (isset($field['name'], $field['key']) && $field['name'] === $field_name) {
1343 + $keys[] = $field['key'];
1344 + }
1345 + }
1346 + }
1347 + return $keys;
1348 + }
1349 +
1350 + /**
1351 + * Group-level ACF toggle (plan bf57e0): sets every field in one ACF field
1352 + * group included or excluded in a SINGLE option write. The client must
1353 + * never loop the per-field endpoint for this — get_option → modify →
1354 + * update_option once per field from twenty concurrent requests is a
1355 + * lost-update race that silently drops most of the group.
1356 + */
1357 + public function mxchat_acf_toggle_group_callback() {
1358 + check_ajax_referer('mxchat_prompts_setting_nonce');
1359 +
1360 + if (!current_user_can('manage_options')) {
1361 + wp_send_json_error(['message' => esc_html__('Insufficient permissions', 'mxchat')], 403);
1362 + return;
1363 + }
1364 +
1365 + if (!function_exists('acf_get_fields')) {
1366 + wp_send_json_error(['message' => esc_html__('ACF is not active', 'mxchat')]);
1367 + return;
1368 + }
1369 +
1370 + $group_key = isset($_POST['group_key']) ? sanitize_text_field(wp_unslash($_POST['group_key'])) : '';
1371 + if (!preg_match('/^group_[A-Za-z0-9_\-]+$/', $group_key)) {
1372 + wp_send_json_error(['message' => esc_html__('Invalid ACF group identifier', 'mxchat')]);
1373 + return;
1374 + }
1375 + $state = isset($_POST['state']) ? sanitize_text_field(wp_unslash($_POST['state'])) : '';
1376 + $include = ($state === 'on' || $state === '1');
1377 +
1378 + // Resolve the group's fields SERVER-side — a client-supplied key list
1379 + // is not trusted. This is the same call the settings UI lists from,
1380 + // so the toggle covers exactly the rendered set (top-level fields).
1381 + $group_fields = acf_get_fields($group_key);
1382 + if (empty($group_fields)) {
1383 + wp_send_json_error(['message' => esc_html__('No fields found for this group', 'mxchat')]);
1384 + return;
1385 + }
1386 +
1387 + $excluded_fields = get_option('mxchat_acf_excluded_fields', array());
1388 + if (!is_array($excluded_fields)) {
1389 + $excluded_fields = array();
1390 + }
1391 +
1392 + $touched = array();
1393 + foreach ($group_fields as $field) {
1394 + if (empty($field['key'])) {
1395 + continue;
1396 + }
1397 + if ($include) {
1398 + $excluded_fields = array_values(array_diff($excluded_fields, array($field['key'])));
1399 + $excluded_fields = $this->mxchat_expand_legacy_acf_name_entry($excluded_fields, $field['key']);
1400 + } elseif (!in_array($field['key'], $excluded_fields, true)) {
1401 + $excluded_fields[] = $field['key'];
1402 + }
1403 + $touched[] = array(
1404 + 'name' => 'mxchat_acf_field_' . $field['key'],
1405 + 'value' => $include ? 'on' : 'off',
1406 + );
1407 + }
1408 +
1409 + // The one write — the whole point of this endpoint.
1410 + update_option('mxchat_acf_excluded_fields', array_values($excluded_fields));
1411 +
1412 + wp_send_json_success([
1413 + 'message' => $include
1414 + ? esc_html__('All fields in this group will be included in imports', 'mxchat')
1415 + : esc_html__('All fields in this group will be excluded from imports', 'mxchat'),
1416 + 'fields' => $touched,
1417 + ]);
1418 + }
1419 +
1420 + /**
815 1421 * Handles AJAX request for Pinecone settings migration
816 1422 */
817 1423 public function ajax_migrate_pinecone_settings() {
818 1424 // Verify nonce
@@ -848,9 +1454,9 @@
848 1454 'mxchat_pinecone_index' => sanitize_text_field($old_options['mxchat_pinecone_index'] ?? ''),
849 1455 'mxchat_pinecone_environment' => sanitize_text_field($old_options['mxchat_pinecone_environment'] ?? '')
850 1456 );
851 1457
852 - update_option('mxchat_pinecone_addon_options', $migrated_options);
1458 + update_option('mxchat_pinecone_addon_options', $migrated_options, false);
853 1459
854 1460 wp_send_json_success(array(
855 1461 'migrated' => true,
856 1462 'message' => 'Settings migrated successfully from Pinecone add-on'
@@ -1009,9 +1615,17 @@
1009 1615 //error_log('MxChat deactivate: Nonce check failed');
1010 1616 wp_send_json_error('Security check failed.');
1011 1617 return;
1012 1618 }
1013 -
1619 +
1620 + // plan-mxchat-20260731-c63fb6 — nonce is not authorization. Without this,
1621 + // any authenticated user holding the nonce could revoke the site's PRO
1622 + // licence. Every sibling handler in this file already checks.
1623 + if (!current_user_can('manage_options')) {
1624 + wp_send_json_error(esc_html__('Unauthorized', 'mxchat'), 403);
1625 + return;
1626 + }
1627 +
1014 1628 //error_log('MxChat deactivate: Nonce check passed');
1015 1629
1016 1630 $license_key = get_option('mxchat_activation_key');
1017 1631 $email = get_option('mxchat_pro_email');
@@ -1347,8 +1961,74 @@
1347 1961 // Perform the reset
1348 1962 MxChat_Admin::mxchat_reset_all_settings();
1349 1963
1350 1964 wp_send_json_success( array( 'message' => esc_html__( 'All settings have been reset to defaults. The page will reload.', 'mxchat' ) ) );
1965 + }
1966 +
1967 + /**
1968 + * Reset the global rate-limit usage counter to zero on demand.
1969 + *
1970 + * Zeroes the WP option mxchat_chat_limit_<bot>_global that the integrator
1971 + * increments per message, then returns a freshly-formatted readout string
1972 + * so the settings page can update without a reload. Does NOT change any
1973 + * enforcement config — purely clears the running counter.
1974 + */
1975 + public function mxchat_reset_global_rate_limit_callback() {
1976 + // Verify nonce
1977 + if ( ! check_ajax_referer( 'mxchat_reset_global_usage', '_ajax_nonce', false ) ) {
1978 + wp_send_json_error( array( 'message' => esc_html__( 'Security check failed', 'mxchat' ) ) );
1979 + }
1980 +
1981 + // Check permissions
1982 + if ( ! current_user_can( 'manage_options' ) ) {
1983 + wp_send_json_error( array( 'message' => esc_html__( 'Unauthorized', 'mxchat' ) ) );
1984 + }
1985 +
1986 + // Resolve the per-bot counter key the same way the integrator does.
1987 + $bot_id = isset( $_POST['bot_id'] ) ? sanitize_key( wp_unslash( $_POST['bot_id'] ) ) : 'default';
1988 + $safe_bot = preg_replace( '/[^a-zA-Z0-9_]/', '_', $bot_id );
1989 + if ( $safe_bot === '' ) {
1990 + $safe_bot = 'default';
1991 + }
1992 + $option_key = 'mxchat_chat_limit_' . $safe_bot . '_global';
1993 +
1994 + $now = time();
1995 + update_option( $option_key, array( 'count' => 0, 'timestamp' => $now ) );
1996 +
1997 + // Recompute the display string so the front-end can update in place.
1998 + $all_options = get_option( 'mxchat_options', array() );
1999 + $global_cfg = isset( $all_options['rate_limits_global'] ) && is_array( $all_options['rate_limits_global'] )
2000 + ? $all_options['rate_limits_global']
2001 + : array();
2002 + $limit_raw = isset( $global_cfg['limit'] ) ? (string) $global_cfg['limit'] : 'unlimited';
2003 + // Defensive: if a raw __custom__ ever slips through, fall back to the custom value.
2004 + if ( ! ctype_digit( $limit_raw ) && isset( $global_cfg['limit_custom'] ) && ctype_digit( (string) $global_cfg['limit_custom'] ) ) {
2005 + $limit_raw = (string) $global_cfg['limit_custom'];
2006 + }
2007 + $timeframe = isset( $global_cfg['timeframe'] ) ? (string) $global_cfg['timeframe'] : 'daily';
2008 + $windows = array( 'hourly' => 3600, 'daily' => 86400, 'weekly' => 604800, 'monthly' => 2592000 );
2009 + $window = isset( $windows[ $timeframe ] ) ? $windows[ $timeframe ] : 86400;
2010 + $reset_at = $now + $window;
2011 + $limit_int = ctype_digit( $limit_raw ) ? (int) $limit_raw : 0;
2012 +
2013 + $text = sprintf(
2014 + /* translators: 1: used count, 2: limit, 3: remaining, 4: human-readable time until reset */
2015 + esc_html__( '%1$s of %2$s used · %3$s left · resets in %4$s', 'mxchat' ),
2016 + number_format_i18n( 0 ),
2017 + number_format_i18n( $limit_int ),
2018 + number_format_i18n( $limit_int ),
2019 + human_time_diff( $now, $reset_at )
2020 + );
2021 +
2022 + wp_send_json_success( array(
2023 + 'count' => 0,
2024 + 'limit' => $limit_int,
2025 + 'left' => $limit_int,
2026 + 'reset_at' => $reset_at,
2027 + 'pct' => 0,
2028 + 'text' => $text,
2029 + 'message' => esc_html__( 'Usage counter reset.', 'mxchat' ),
2030 + ) );
1351 2031 }
1352 2032
1353 2033 }
1354 2034