PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / 2.6.0
MxChat – AI Chatbot & Content Generation for WordPress v2.6.0
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 | mxchat-basic.php +29 -791 3.2.132.6.0 View file →
@@ -2,9 +2,9 @@
2 2 /**
3 3 * Plugin Name: MxChat
4 4 * Plugin URI: https://mxchat.ai/
5 5 * Description: AI chatbot for WordPress with OpenAI, Claude, xAI, DeepSeek, live agent, PDF uploads, WooCommerce, and training on website data.
6 - * Version: 3.2.13
6 + * Version: 2.6.0
7 7 * Author: MxChat
8 8 * Author URI: https://mxchat.ai
9 9 * License: GPLv2 or later
10 10 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
@@ -15,396 +15,23 @@
15 15 if (!defined('ABSPATH')) {
16 16 exit; // Exit if accessed directly.
17 17 }
18 18
19 -
20 -if (!defined('MXCHAT_DEV_MODE')) {
21 - define('MXCHAT_DEV_MODE', false);
22 -}
23 -
19 +// Define plugin version constant for asset versioning
20 +// Reads version from plugin header automatically
24 21 if (!defined('MXCHAT_VERSION')) {
25 22 $plugin_data = get_file_data(__FILE__, array('Version' => 'Version'), 'plugin');
26 - $version = $plugin_data['Version'];
27 - if (MXCHAT_DEV_MODE) {
28 - $version .= '.' . time();
29 - }
30 - define('MXCHAT_VERSION', $version);
23 + define('MXCHAT_VERSION', $plugin_data['Version']);
31 24 }
32 25
33 -/**
34 - * Honest, versioned User-Agent for MXChat remote-content ingestion fetches
35 - * (Knowledge Base PDF import, URL import, sitemap / website crawl).
36 - *
37 - * WAF rulesets (SiteGround/ModSecurity, Wordfence, Cloudflare managed rules)
38 - * flag stale spoofed-browser UAs as scrapers and return 403 — which silently
39 - * broke the single most common KB source: self-hosted media on the site's own
40 - * domain. A truthful crawler identifier is the industry norm for well-behaved
41 - * bots and lets a site owner allowlist "MXChatBot" in their WAF. Filterable so
42 - * a locked-down host can supply a different string without a code change.
43 - */
44 -if (!function_exists('mxchat_ingest_user_agent')) {
45 - function mxchat_ingest_user_agent() {
46 - $version = defined('MXCHAT_VERSION') ? MXCHAT_VERSION : '1.0';
47 - $ua = 'MXChatBot/' . $version . ' (+https://mxchat.ai/bot)';
48 - return apply_filters('mxchat_ingest_user_agent', $ua);
49 - }
50 -}
51 -
52 26 function mxchat_load_textdomain() {
53 - $domain = 'mxchat';
54 - $locale = determine_locale();
55 -
56 - // First, try to load from /wp-content/languages/plugins/ (preserved during updates)
57 - $mo_file = WP_LANG_DIR . '/plugins/' . $domain . '-' . $locale . '.mo';
58 - if (file_exists($mo_file)) {
59 - load_textdomain($domain, $mo_file);
60 - return;
61 - }
62 -
63 - // Fallback to plugin's /languages directory
64 - load_plugin_textdomain($domain, false, dirname(plugin_basename(__FILE__)) . '/languages');
27 + load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages');
65 28 }
66 29 add_action('init', 'mxchat_load_textdomain');
67 30
68 -/**
69 - * One-time migration: gemini-3-pro-preview was shut down by Google on March 9, 2026.
70 - * Existing installs with the dead ID get auto-remapped to gemini-3.1-pro-preview
71 - * (Google's official migration target) the first time admin_init fires after update.
72 - */
73 -add_action('admin_init', function () {
74 - if (get_option('mxchat_gemini_3_remap_done')) {
75 - return;
76 - }
77 - $opts = get_option('mxchat_options');
78 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'gemini-3-pro-preview') {
79 - $opts['model'] = 'gemini-3.1-pro-preview';
80 - update_option('mxchat_options', $opts);
81 - }
82 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'gemini-3-pro-preview') {
83 - $opts['content_model'] = 'gemini-3.1-pro-preview';
84 - update_option('mxchat_options', $opts);
85 - }
86 - update_option('mxchat_gemini_3_remap_done', 1);
87 -});
88 -
89 -/**
90 - * One-time migration: the Grok 2 family was retired by xAI (grok-2, grok-2-1212,
91 - * grok-2-latest, grok-2-vision-1212 all return 400 "Model not found"). Existing
92 - * installs with the dead ID get auto-remapped to grok-4-1-fast-non-reasoning
93 - * (modern, fast, broadly available) the first time admin_init fires after update.
94 - */
95 -add_action('admin_init', function () {
96 - if (get_option('mxchat_grok_2_remap_done')) {
97 - return;
98 - }
99 - $opts = get_option('mxchat_options');
100 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'grok-2') {
101 - $opts['model'] = 'grok-4-1-fast-non-reasoning';
102 - update_option('mxchat_options', $opts);
103 - }
104 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'grok-2') {
105 - $opts['content_model'] = 'grok-4-1-fast-non-reasoning';
106 - update_option('mxchat_options', $opts);
107 - }
108 - update_option('mxchat_grok_2_remap_done', 1);
109 -});
110 -
111 -/**
112 - * One-time migration: Anthropic retired the Claude 4 (2025-05-14) snapshots on
113 - * June 15, 2026 — claude-opus-4-20250514 and claude-sonnet-4-20250514 now return
114 - * an API error. Existing installs with a dead ID get auto-remapped to the current
115 - * equivalents Anthropic recommends (Opus 4.8 / Sonnet 4.6) the first time admin_init
116 - * fires after update. Mirrors the gemini-3-pro-preview / grok-2 rescues above.
117 - */
118 -add_action('admin_init', function () {
119 - if (get_option('mxchat_claude_4_retire_remap_done')) {
120 - return;
121 - }
122 - $map = array(
123 - 'claude-opus-4-20250514' => 'claude-opus-4-8',
124 - 'claude-sonnet-4-20250514' => 'claude-sonnet-4-6',
125 - );
126 - $opts = get_option('mxchat_options');
127 - if (is_array($opts)) {
128 - $changed = false;
129 - if (isset($opts['model']) && isset($map[$opts['model']])) {
130 - $opts['model'] = $map[$opts['model']];
131 - $changed = true;
132 - }
133 - if (isset($opts['content_model']) && isset($map[$opts['content_model']])) {
134 - $opts['content_model'] = $map[$opts['content_model']];
135 - $changed = true;
136 - }
137 - if ($changed) {
138 - update_option('mxchat_options', $opts);
139 - }
140 - }
141 - update_option('mxchat_claude_4_retire_remap_done', 1);
142 -});
143 -
144 -/**
145 - * Exclude MxChat assets from caching plugin optimizations
146 - *
147 - * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache,
148 - * W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by
149 - * removing "unused" CSS, minifying/combining JS, or deferring/delaying jQuery.
150 - *
151 - * Both chat-script.js and floating-script.js depend on jQuery, so jQuery must also
152 - * be excluded from any optimization that changes load order or timing.
153 - */
154 -
155 -// ── WP Rocket ────────────────────────────────────────────────────────────────
156 -
157 -// Exclude from Remove Unused CSS (RUCSS)
158 -add_filter('rocket_rucss_inline_atts_exclusions', function($exclusions) {
159 - if (!is_array($exclusions)) $exclusions = array();
160 - $exclusions[] = 'mxchat';
161 - return $exclusions;
162 -});
163 -
164 -// Exclude CSS from minification/combination
165 -add_filter('rocket_exclude_css', function($excluded) {
166 - if (!is_array($excluded)) $excluded = array();
167 - $excluded[] = '/plugins/mxchat-basic/css/chat-style.css';
168 - return $excluded;
169 -});
170 -
171 -// Exclude JS from minification/combination
172 -add_filter('rocket_exclude_js', function($excluded) {
173 - if (!is_array($excluded)) $excluded = array();
174 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
175 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
176 - $excluded[] = '/jquery-core';
177 - $excluded[] = '/jquery.min.js';
178 - $excluded[] = '/jquery.js';
179 - $excluded[] = '/jquery-migrate';
180 - return $excluded;
181 -});
182 -
183 -// Exclude JS from defer
184 -add_filter('rocket_exclude_defer_js', function($excluded) {
185 - if (!is_array($excluded)) $excluded = array();
186 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
187 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
188 - $excluded[] = '/jquery-core';
189 - $excluded[] = '/jquery.min.js';
190 - $excluded[] = '/jquery.js';
191 - $excluded[] = '/jquery-migrate';
192 - return $excluded;
193 -});
194 -
195 -// Exclude from delay JS execution
196 -add_filter('rocket_delay_js_exclusions', function($excluded) {
197 - if (!is_array($excluded)) $excluded = array();
198 - $excluded[] = 'mxchat';
199 - $excluded[] = 'chat-script';
200 - $excluded[] = 'floating-script';
201 - $excluded[] = '/jquery-core';
202 - $excluded[] = '/jquery.min.js';
203 - $excluded[] = '/jquery.js';
204 - $excluded[] = '/jquery-migrate';
205 - return $excluded;
206 -});
207 -
208 -// ── LiteSpeed Cache ──────────────────────────────────────────────────────────
209 -
210 -// Exclude CSS from optimization
211 -add_filter('litespeed_optimize_css_excludes', function($excluded) {
212 - if (!is_array($excluded)) $excluded = array();
213 - $excluded[] = 'chat-style.css';
214 - $excluded[] = 'mxchat';
215 - return $excluded;
216 -});
217 -
218 -// Exclude from UCSS (Unique CSS) - prevents LiteSpeed from stripping "unused" MxChat CSS
219 -add_filter('litespeed_ucss_whitelist', function($whitelist) {
220 - if (!is_array($whitelist)) $whitelist = array();
221 - $whitelist[] = '.mxchat-chatbot-wrapper';
222 - $whitelist[] = '.floating-chatbot';
223 - $whitelist[] = '.floating-chatbot-button';
224 - $whitelist[] = '.chatbot-top-bar';
225 - $whitelist[] = '.mxchat-chatbot';
226 - $whitelist[] = '.chat-container';
227 - $whitelist[] = '.chat-box';
228 - $whitelist[] = '.bot-message';
229 - $whitelist[] = '.input-container';
230 - $whitelist[] = '.chat-input';
231 - $whitelist[] = '.send-button';
232 - $whitelist[] = '.pre-chat-message';
233 - $whitelist[] = '.mxchat-popular-questions';
234 - $whitelist[] = '.chat-toolbar';
235 - $whitelist[] = '.exit-chat';
236 - $whitelist[] = '.email-blocker';
237 - return $whitelist;
238 -});
239 -
240 -// Exclude CSS from CCSS (Critical CSS) generation
241 -add_filter('litespeed_optm_ccss_exc', function($excluded) {
242 - if (!is_array($excluded)) $excluded = array();
243 - $excluded[] = 'chat-style.css';
244 - $excluded[] = 'mxchat';
245 - return $excluded;
246 -});
247 -
248 -// Exclude JS from defer
249 -add_filter('litespeed_optm_js_defer_exc', function($excluded) {
250 - if (!is_array($excluded)) $excluded = array();
251 - $excluded[] = 'chat-script.js';
252 - $excluded[] = 'floating-script.js';
253 - $excluded[] = 'mxchat';
254 - $excluded[] = 'jquery.min.js';
255 - $excluded[] = 'jquery.js';
256 - return $excluded;
257 -});
258 -
259 -// Exclude JS from combining
260 -add_filter('litespeed_optm_js_exc', function($excluded) {
261 - if (!is_array($excluded)) $excluded = array();
262 - $excluded[] = 'chat-script.js';
263 - $excluded[] = 'floating-script.js';
264 - $excluded[] = 'mxchat';
265 - $excluded[] = 'jquery.min.js';
266 - $excluded[] = 'jquery.js';
267 - return $excluded;
268 -});
269 -
270 -// Exclude JS from delayed execution
271 -add_filter('litespeed_optm_js_delay_exc', function($excluded) {
272 - if (!is_array($excluded)) $excluded = array();
273 - $excluded[] = 'chat-script.js';
274 - $excluded[] = 'floating-script.js';
275 - $excluded[] = 'mxchat';
276 - return $excluded;
277 -});
278 -
279 -// Exclude from Guest Mode optimization
280 -add_filter('litespeed_guest_optm_exc', function($excluded) {
281 - if (!is_array($excluded)) $excluded = array();
282 - $excluded[] = 'mxchat';
283 - $excluded[] = 'chat-style';
284 - $excluded[] = 'chat-script';
285 - $excluded[] = 'floating-script';
286 - return $excluded;
287 -});
288 -
289 -// ── Autoptimize ──────────────────────────────────────────────────────────────
290 -
291 -// Exclude CSS from optimization (comma-separated strings)
292 -add_filter('autoptimize_filter_css_exclude', function($excluded) {
293 - if (!is_string($excluded)) $excluded = '';
294 - return $excluded . ', mxchat, chat-style.css';
295 -});
296 -
297 -// Exclude JS from optimization (comma-separated strings)
298 -add_filter('autoptimize_filter_js_exclude', function($excluded) {
299 - if (!is_string($excluded)) $excluded = '';
300 - return $excluded . ', mxchat, chat-script.js, floating-script.js, jquery.min.js, jquery.js';
301 -});
302 -
303 -// ── SG Optimizer (SiteGround) ────────────────────────────────────────────────
304 -
305 -add_filter('sgo_js_minify_exclude', function($excluded) {
306 - if (!is_array($excluded)) $excluded = array();
307 - $excluded[] = 'chat-script.js';
308 - $excluded[] = 'floating-script.js';
309 - $excluded[] = 'jquery.min.js';
310 - return $excluded;
311 -});
312 -
313 -add_filter('sgo_javascript_combine_exclude', function($excluded) {
314 - if (!is_array($excluded)) $excluded = array();
315 - $excluded[] = 'chat-script.js';
316 - $excluded[] = 'floating-script.js';
317 - $excluded[] = 'jquery.min.js';
318 - return $excluded;
319 -});
320 -
321 -add_filter('sgo_js_async_exclude', function($excluded) {
322 - if (!is_array($excluded)) $excluded = array();
323 - $excluded[] = 'chat-script.js';
324 - $excluded[] = 'floating-script.js';
325 - $excluded[] = 'jquery.min.js';
326 - return $excluded;
327 -});
328 -
329 -// ── W3 Total Cache ───────────────────────────────────────────────────────────
330 -
331 -add_filter('w3tc_minify_js_do_tag_minification', function($do_minify, $script_tag, $file) {
332 - if (strpos($file, 'chat-script.js') !== false ||
333 - strpos($file, 'floating-script.js') !== false ||
334 - strpos($file, 'jquery.min.js') !== false ||
335 - strpos($file, 'jquery.js') !== false) {
336 - return false;
337 - }
338 - return $do_minify;
339 -}, 10, 3);
340 -
341 -// ── WP Super Cache ──────────────────────────────────────────────────────────
342 -
343 -add_filter('wpsc_rejected_uri', function($rejected) {
344 - if (!is_array($rejected)) $rejected = array();
345 - $rejected[] = 'wp-admin/admin-ajax.php';
346 - return $rejected;
347 -});
348 -
349 -// ── Page-cache bypass for chat AJAX (companion to the 3.2.6 nonce-race hotfix)
350 -// Each cache plugin gets its own filter export so that visitors hitting an
351 -// edge-cached page never receive cached chat-AJAX responses. The chat send /
352 -// stream send / file upload all POST to /wp-admin/admin-ajax.php with
353 -// `action=mxchat_*`. Without these exports, a cache plugin can stale a response
354 -// and break the per-session nonce flow on the first message.
355 -
356 -// WP Rocket — `rocket_cache_reject_uri` takes a flat array of regex strings.
357 -add_filter('rocket_cache_reject_uri', function($uris) {
358 - if (!is_array($uris)) $uris = array();
359 - $uris[] = '/wp-admin/admin-ajax\.php\?action=mxchat_.*';
360 - return $uris;
361 -});
362 -
363 -// LiteSpeed Cache — `litespeed_cache_no_cache_for_request` short-circuits
364 -// caching when the request matches our chat-AJAX pattern.
365 -add_filter('litespeed_cache_no_cache_for_request', function($no_cache) {
366 - if ($no_cache) return $no_cache;
367 - if (!empty($_SERVER['REQUEST_URI']) &&
368 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
369 - !empty($_REQUEST['action']) &&
370 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
371 - return true;
372 - }
373 - return $no_cache;
374 -});
375 -
376 -// W3 Total Cache — `w3tc_pgcache_request_skip_uri` flips page-cache off when
377 -// the URI matches.
378 -add_filter('w3tc_pgcache_request_skip_uri', function($skip) {
379 - if ($skip) return $skip;
380 - if (!empty($_SERVER['REQUEST_URI']) &&
381 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
382 - !empty($_REQUEST['action']) &&
383 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
384 - return true;
385 - }
386 - return $skip;
387 -});
388 -
389 -// FlyingPress — `flying_press_cacheable` takes a boolean and is run per
390 -// request. Same pattern as LiteSpeed / W3TC.
391 -add_filter('flying_press_cacheable', function($cacheable) {
392 - if (!$cacheable) return $cacheable;
393 - if (!empty($_SERVER['REQUEST_URI']) &&
394 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
395 - !empty($_REQUEST['action']) &&
396 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
397 - return false;
398 - }
399 - return $cacheable;
400 -});
401 -
402 31 // Include classes with error handling
403 32 function mxchat_include_classes() {
404 33 $class_files = array(
405 - 'includes/class-mxchat-model-catalog.php',
406 - 'includes/class-mxchat-tool-registry.php',
407 34 'includes/class-mxchat-integrator.php',
408 35 'includes/class-mxchat-admin.php',
409 36 'includes/class-mxchat-public.php',
410 37 'includes/class-mxchat-utils.php',
@@ -409,13 +36,10 @@
409 36 'includes/class-mxchat-public.php',
410 37 'includes/class-mxchat-utils.php',
411 38 'includes/class-mxchat-user.php',
412 39 'includes/class-mxchat-meta-box.php',
413 - 'includes/class-mxchat-chunker.php',
40 + 'includes/pdf-parser/alt_autoload.php',
414 41 'includes/class-mxchat-word-handler.php',
415 - 'includes/class-mxchat-content-generator.php',
416 - 'includes/class-mxchat-cache-purge.php',
417 - 'includes/class-rest-api.php',
418 42 'admin/class-ajax-handler.php',
419 43 'admin/class-pinecone-manager.php',
420 44 'admin/class-knowledge-manager.php'
421 45 );
@@ -427,50 +51,11 @@
427 51 } else {
428 52 //error_log('MxChat: Missing class file - ' . $file);
429 53 }
430 54 }
431 -
432 - // Register the native function-calling admin-post save handler (a41dee).
433 - if (class_exists('MxChat_Tool_Registry')) {
434 - MxChat_Tool_Registry::init();
435 - }
436 -
437 - // Admin pages that aren't classes (procedural include).
438 - if (is_admin()) {
439 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
440 - if (file_exists($admin_api_page)) {
441 - require_once $admin_api_page;
442 - }
443 - // f7c7d4 renamed this file admin-dashboard-page.php → admin-onboarding-page.php.
444 - // The require MUST live here (admin bootstrap) and not just inside
445 - // mxchat_add_plugin_page() on the admin_menu hook — admin_menu does NOT
446 - // fire on admin-ajax.php requests, so the wizard's AJAX handlers
447 - // (plan-905439: mxchat_onboarding_kb_status / save_step / mark_step /
448 - // auto_graduate + the f7c7d4 dismiss handler) would never register.
449 - $admin_onboarding_page = plugin_dir_path(__FILE__) . 'includes/admin-onboarding-page.php';
450 - if (file_exists($admin_onboarding_page)) {
451 - require_once $admin_onboarding_page;
452 - }
453 - }
454 55 }
455 56
456 57 /**
457 - * Lazy-load the PDF parser library only when needed.
458 - * Avoids loading 44 files on every page request.
459 - */
460 -function mxchat_load_pdf_parser() {
461 - if (class_exists('\Smalot\PdfParser\Parser')) {
462 - return true;
463 - }
464 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
465 - if (file_exists($autoload_path)) {
466 - require_once $autoload_path;
467 - return true;
468 - }
469 - return false;
470 -}
471 -
472 -/**
473 58 * Create URL click tracking table
474 59 */
475 60 function mxchat_create_url_clicks_table() {
476 61 global $wpdb;
@@ -738,9 +323,9 @@
738 323
739 324 // Add index for bot_id
740 325 $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
741 326
742 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
327 + error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
743 328 }
744 329
745 330 // Mark migration as complete
746 331 update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
@@ -775,9 +360,9 @@
775 360
776 361 // Add index for better query performance
777 362 $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
778 363
779 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
364 + error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
780 365 }
781 366
782 367 // Mark migration as complete
783 368 update_option('mxchat_content_type_migration_version', '2.5.6');
@@ -783,33 +368,8 @@
783 368 update_option('mxchat_content_type_migration_version', '2.5.6');
784 369 }
785 370
786 371 /**
787 - * 3.2.4: Backfill the active embedding model option for installs that already
788 - * have KB content but no stamped model. The mismatch warning compares this
789 - * against the user's currently selected model — no per-row column needed.
790 - */
791 -function mxchat_backfill_active_embedding_model() {
792 - global $wpdb;
793 -
794 - if (get_option('mxchat_active_embedding_model', '') !== '') {
795 - return;
796 - }
797 -
798 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
799 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
800 - return;
801 - }
802 -
803 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
804 - if ($kb_count > 0) {
805 - $options = get_option('mxchat_options', array());
806 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
807 - update_option('mxchat_active_embedding_model', $current_model, false);
808 - }
809 -}
810 -
811 -/**
812 372 * 2.5.2: Create queue processing tables for reliable background processing
813 373 */
814 374 function mxchat_create_queue_tables() {
815 375 global $wpdb;
@@ -857,58 +417,8 @@
857 417 //error_log("MxChat: Queue tables created/updated successfully");
858 418 }
859 419
860 420 /**
861 - * Create transcript translations table for persisting translations
862 - */
863 -function mxchat_create_translations_table() {
864 - global $wpdb;
865 - $charset_collate = $wpdb->get_charset_collate();
866 -
867 - $table_name = $wpdb->prefix . 'mxchat_transcript_translations';
868 - $sql = "CREATE TABLE $table_name (
869 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
870 - session_id varchar(255) NOT NULL,
871 - language_code varchar(10) NOT NULL,
872 - translations longtext NOT NULL,
873 - created_at datetime NOT NULL,
874 - updated_at datetime NOT NULL,
875 - PRIMARY KEY (id),
876 - UNIQUE KEY session_lang (session_id, language_code),
877 - KEY session_id (session_id)
878 - ) $charset_collate;";
879 -
880 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
881 - dbDelta($sql);
882 -}
883 -
884 -/**
885 - * Create per-session satisfaction ratings table (v3.2.6)
886 - * Stores one 👍/👎 rating + optional feedback per chat session.
887 - */
888 -function mxchat_create_session_ratings_table() {
889 - global $wpdb;
890 - $charset_collate = $wpdb->get_charset_collate();
891 -
892 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
893 - $sql = "CREATE TABLE $table_name (
894 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
895 - session_id varchar(255) NOT NULL,
896 - bot_id varchar(50) NOT NULL DEFAULT 'default',
897 - rating_value tinyint(1) NOT NULL,
898 - rating_feedback text DEFAULT NULL,
899 - created_at datetime NOT NULL,
900 - PRIMARY KEY (id),
901 - UNIQUE KEY session_id (session_id),
902 - KEY bot_id (bot_id),
903 - KEY created_at (created_at)
904 - ) $charset_collate;";
905 -
906 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
907 - dbDelta($sql);
908 -}
909 -
910 -/**
911 421 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
912 422 * This fixes "url, source_url. The supplied values may be too long" errors
913 423 */
914 424 function mxchat_fix_url_column_size() {
@@ -931,80 +441,22 @@
931 441
932 442 /**
933 443 * Migrate deprecated AI models to their replacements
934 444 * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
935 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
936 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
937 445 */
938 -function mxchat_migrate_transcripts_charset() {
939 - global $wpdb;
940 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
941 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
942 -}
943 -
944 -/**
945 - * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
946 - */
947 446 function mxchat_migrate_deprecated_models() {
948 447 $options = get_option('mxchat_options', array());
949 - $migrated = false;
950 - $migration_message = '';
951 -
952 - if (!isset($options['model'])) {
953 - return;
954 - }
955 -
956 - $current_model = $options['model'];
957 -
958 - // Migrate deprecated Claude models to Claude Opus 4.6 (recommended replacement per Anthropic)
959 - $deprecated_claude_models = array(
960 - 'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025
961 - 'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025
962 - 'claude-3-7-sonnet-20250219', // Retiring Feb 19, 2026
963 - 'claude-3-opus-20240229', // Retired Jan 5, 2026
964 - 'claude-3-sonnet-20240229', // Legacy
965 - 'claude-3-haiku-20240307', // Legacy
966 - );
967 - if (in_array($current_model, $deprecated_claude_models, true)) {
968 - $options['model'] = 'claude-opus-4-6';
969 - $migrated = true;
970 - $migration_message = sprintf(
971 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
972 - $current_model
973 - );
974 - }
975 -
976 - // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
977 - if ($current_model === 'claude-3-5-haiku-20241022') {
978 - $options['model'] = 'claude-haiku-4-5-20251001';
979 - $migrated = true;
980 - $migration_message = 'Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.';
981 - }
982 -
983 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest
984 - if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
985 - $options['model'] = 'gpt-5.1-chat-latest';
986 - $migrated = true;
987 - $migration_message = sprintf(
988 - 'Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.',
989 - $current_model
990 - );
991 - }
992 -
993 - // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
994 - if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
995 - $options['model'] = 'gpt-5-mini';
996 - $migrated = true;
997 - $migration_message = sprintf(
998 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
999 - $current_model
1000 - );
1001 - }
1002 -
1003 - if ($migrated) {
448 +
449 + // Check if model is set and is the deprecated Claude 3.5 Sonnet
450 + if (isset($options['model']) && $options['model'] === 'claude-3-5-sonnet-20241022') {
451 + // Update to Claude 3.7 Sonnet (the replacement model)
452 + $options['model'] = 'claude-3-7-sonnet-20250219';
1004 453 update_option('mxchat_options', $options);
454 +
455 + // Set a flag to show admin notice
1005 456 update_option('mxchat_model_migrated_notice', true);
1006 - update_option('mxchat_model_migration_message', $migration_message);
457 +
458 + //error_log('MxChat: Migrated deprecated Claude 3.5 Sonnet to Claude 3.7 Sonnet');
1007 459 }
1008 460 }
1009 461
1010 462 /**
@@ -1011,19 +463,17 @@
1011 463 * Show admin notice after model migration
1012 464 */
1013 465 function mxchat_show_migration_notice() {
1014 466 if (get_option('mxchat_model_migrated_notice')) {
1015 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
1016 467 ?>
1017 468 <div class="notice notice-info is-dismissible">
1018 469 <p>
1019 470 <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
1020 - <?php echo esc_html($migration_message); ?>
471 + <?php esc_html_e('Your chatbot model has been automatically updated from Claude 3.5 Sonnet to Claude 3.7 Sonnet due to the deprecation of the previous model by Anthropic. Claude 3.7 Sonnet offers improved performance and capabilities.', 'mxchat'); ?>
1021 472 </p>
1022 473 </div>
1023 474 <?php
1024 475 delete_option('mxchat_model_migrated_notice');
1025 - delete_option('mxchat_model_migration_message');
1026 476 }
1027 477 }
1028 478
1029 479 function mxchat_activate() {
@@ -1063,26 +513,13 @@
1063 513 enabled_bots LONGTEXT DEFAULT NULL,
1064 514 PRIMARY KEY (id)
1065 515 ) $charset_collate;";
1066 516
1067 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
1068 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
1069 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
1070 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1071 - intent_id BIGINT(20) UNSIGNED NOT NULL,
1072 - phrase TEXT NOT NULL,
1073 - embedding_vector LONGTEXT NOT NULL,
1074 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1075 - PRIMARY KEY (id),
1076 - KEY intent_id (intent_id)
1077 - ) $charset_collate;";
1078 -
1079 517 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1080 518
1081 519 // Create other tables
1082 520 dbDelta($sql_system_prompt);
1083 521 dbDelta($sql_intents_table);
1084 - dbDelta($sql_intent_phrases_table);
1085 522
1086 523 // Create URL click tracking table
1087 524 mxchat_create_url_clicks_table();
1088 525
@@ -1091,14 +528,8 @@
1091 528
1092 529 // NEW 2.5.2: Create queue processing tables
1093 530 mxchat_create_queue_tables();
1094 531
1095 - // Create transcript translations table
1096 - mxchat_create_translations_table();
1097 -
1098 - // Create per-session satisfaction ratings table (v3.2.6)
1099 - mxchat_create_session_ratings_table();
1100 -
1101 532 // Ensure additional columns in system prompt table
1102 533 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1103 534 if (!empty($existing_system_columns)) {
1104 535 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1141,11 +572,8 @@
1141 572
1142 573 // Run migration for existing installations
1143 574 mxchat_migrate_pinecone_roles_add_bot_id();
1144 575
1145 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1146 - mxchat_backfill_active_embedding_model();
1147 -
1148 576 // Setup cron jobs
1149 577 mxchat_setup_cron_jobs();
1150 578
1151 579 // Update version
@@ -1180,14 +608,13 @@
1180 608 // Clear fallback flags if cron scheduling succeeded
1181 609 delete_option('mxchat_use_fallback_rate_limits');
1182 610 }
1183 611
1184 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
612 + // Schedule transcript cleanup if configured
1185 613 $transcript_options = get_option('mxchat_transcripts_options', array());
1186 614 $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1187 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1188 -
1189 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
615 +
616 + if ($cleanup_interval !== 'never') {
1190 617 // Check if not already scheduled
1191 618 if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1192 619 // Schedule to run daily at 3 AM
1193 620 $next_run = strtotime('tomorrow 3:00 AM');
@@ -1264,14 +691,11 @@
1264 691
1265 692 // Version-specific migrations
1266 693 if ($current_version !== $plugin_version) {
1267 694 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1268 -
695 +
1269 696 // Run live agent update BEFORE updating the stored version
1270 697 mxchat_handle_live_agent_update();
1271 -
1272 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1273 - mxchat_handle_theme_migration_notice();
1274 698
1275 699 // Run role restriction migration for 2.4.1
1276 700 if (version_compare($current_version, '2.4.1', '<')) {
1277 701 mxchat_add_role_restriction_column();
@@ -1300,35 +724,8 @@
1300 724 mxchat_ensure_all_columns($chat_table);
1301 725 //error_log("MxChat: rag_context column migration for 2.6.0");
1302 726 }
1303 727
1304 - // 3.0.5: Migrate deprecated Gemini embedding model
1305 - if (version_compare($current_version, '3.0.5', '<')) {
1306 - mxchat_migrate_gemini_embedding_model();
1307 - }
1308 -
1309 - // 3.0.6: Migrate deprecated OpenAI and Claude models
1310 - if (version_compare($current_version, '3.0.6', '<')) {
1311 - mxchat_migrate_deprecated_models();
1312 - }
1313 -
1314 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1315 - if (version_compare($current_version, '3.1.2', '<')) {
1316 - mxchat_migrate_transcripts_charset();
1317 - }
1318 -
1319 - // 3.1.7: Clean up stale shared session email/name entries
1320 - if (version_compare($current_version, '3.1.7', '<')) {
1321 - delete_option('mxchat_email_null');
1322 - delete_option('mxchat_name_null');
1323 - }
1324 -
1325 - // 3.2.4: Backfill active embedding model option for the warning UI
1326 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1327 - if (version_compare($current_version, '3.2.4', '<')) {
1328 - mxchat_backfill_active_embedding_model();
1329 - }
1330 -
1331 728 // Run full activation to ensure everything is up to date
1332 729 mxchat_activate();
1333 730
1334 731 // Run migration functions
@@ -1460,59 +857,31 @@
1460 857 function mxchat_handle_live_agent_update() {
1461 858 // Get the CURRENT stored version (before it gets updated)
1462 859 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1463 860 $new_version = '2.2.2';
1464 -
861 +
1465 862 // Only run this once for the update to 2.2.2
1466 863 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1467 -
864 +
1468 865 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1469 866 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1470 867 $options = get_option('mxchat_options', array());
1471 -
868 +
1472 869 // Check if live agent was previously enabled
1473 870 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1474 871 // Disable live agent
1475 872 $options['live_agent_status'] = 'off';
1476 873 update_option('mxchat_options', $options);
1477 -
874 +
1478 875 // Set flag to show the notification banner
1479 876 update_option('mxchat_show_live_agent_disabled_notice', true);
1480 877 }
1481 -
878 +
1482 879 // Mark this update as handled
1483 880 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1484 881 }
1485 882 }
1486 883
1487 -/**
1488 - * Handle theme migration notice for version 3.0.1
1489 - * Shows a dismissible notice to Pro users about migrating AI-generated themes
1490 - */
1491 -function mxchat_handle_theme_migration_notice() {
1492 - // Get the CURRENT stored version (before it gets updated)
1493 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1494 - $target_version = '3.0.1';
1495 -
1496 - // Only run this once for the update to 3.0.1
1497 - $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
1498 -
1499 - // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1500 - if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1501 - // Check if Pro is activated - only show to Pro users
1502 - $license_status = get_option('mxchat_license_status', 'inactive');
1503 - $is_pro = ($license_status === 'active');
1504 -
1505 - if ($is_pro) {
1506 - // Set flag to show the theme migration notification banner
1507 - update_option('mxchat_show_theme_migration_notice', true);
1508 - }
1509 -
1510 - // Mark this update as handled (whether Pro or not)
1511 - update_option('mxchat_theme_migration_update_3_0_1_handled', true);
1512 - }
1513 -}
1514 -
1515 884 // Initialize plugin safely
1516 885 function mxchat_init() {
1517 886 // Include all class files first
1518 887 mxchat_include_classes();
@@ -1544,32 +913,10 @@
1544 913 // Initialize meta box class
1545 914 if (class_exists('MxChat_Meta_Box')) {
1546 915 new MxChat_Meta_Box();
1547 916 }
1548 -
1549 917 }
1550 -
1551 - // Initialize content generator globally — it registers wp_head hook
1552 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1553 - if (class_exists('MxChat_Content_Generator')) {
1554 - new MxChat_Content_Generator();
1555 - }
1556 -
1557 - // Initialize cache purge globally — settings writes can happen on any
1558 - // request type (admin screens, admin-ajax autosave, wp-cli), and the
1559 - // deferred-purge cron event fires on front-end requests.
1560 - if (class_exists('MxChat_Cache_Purge')) {
1561 - MxChat_Cache_Purge::init();
1562 - }
1563 -
1564 - // Initialize REST API globally — endpoints must be registered on
1565 - // every request (admin and frontend) so they're reachable via /wp-json/.
1566 - // Endpoints are auth-gated and locked until the site owner generates
1567 - // a token in MxChat → API Access.
1568 - if (class_exists('MxChat_Rest_Api')) {
1569 - new MxChat_Rest_Api();
1570 - }
1571 -
918 +
1572 919 // Initialize public classes
1573 920 if (class_exists('MxChat_Public')) {
1574 921 $mxchat_public = new MxChat_Public();
1575 922 }
@@ -1613,57 +960,10 @@
1613 960 $checked = true;
1614 961
1615 962 mxchat_migrate_pinecone_roles_add_bot_id();
1616 963 mxchat_migrate_add_content_type_column();
1617 - mxchat_migrate_add_translations_table();
1618 - mxchat_migrate_add_session_ratings_table();
1619 964 }
1620 965
1621 -/**
1622 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1623 - * For users upgrading from versions before 3.2.6
1624 - */
1625 -function mxchat_migrate_add_session_ratings_table() {
1626 - $migration_key = 'mxchat_session_ratings_table_created';
1627 - if (get_option($migration_key)) {
1628 - return;
1629 - }
1630 - mxchat_create_session_ratings_table();
1631 - update_option($migration_key, '3.2.6');
1632 -}
1633 -
1634 -/**
1635 - * Migration: Create transcript translations table (v3.0.4)
1636 - * For users upgrading from versions before 3.0.4
1637 - */
1638 -function mxchat_migrate_add_translations_table() {
1639 - $migration_key = 'mxchat_translations_table_created';
1640 -
1641 - // Check if migration already ran
1642 - if (get_option($migration_key)) {
1643 - return;
1644 - }
1645 -
1646 - // Create the translations table
1647 - mxchat_create_translations_table();
1648 -
1649 - // Mark migration as complete
1650 - update_option($migration_key, '3.0.4');
1651 -}
1652 -
1653 -/**
1654 - * Migration: Update deprecated Gemini embedding model (v3.0.5)
1655 - * Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected
1656 - */
1657 -function mxchat_migrate_gemini_embedding_model() {
1658 - $options = get_option('mxchat_options', array());
1659 -
1660 - if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') {
1661 - $options['embedding_model'] = 'gemini-embedding-001';
1662 - update_option('mxchat_options', $options);
1663 - }
1664 -}
1665 -
1666 966 // Register activation hook
1667 967 register_activation_hook(__FILE__, 'mxchat_activate');
1668 968
1669 969 // Add cron schedule
@@ -1675,67 +975,5 @@
1675 975 return $schedules;
1676 976 });
1677 977
1678 978 // Register deactivation hook
1679 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1680 -
1681 -/**
1682 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1683 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1684 - * session_id makes this naturally idempotent — only the first rating per
1685 - * session is stored; duplicate POSTs are silent no-ops.
1686 - */
1687 -function mxchat_save_session_rating() {
1688 - global $wpdb;
1689 -
1690 - $session_id = isset($_POST['session_id']) ? sanitize_text_field(wp_unslash($_POST['session_id'])) : '';
1691 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1692 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1693 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1694 -
1695 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1696 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1697 - }
1698 -
1699 - if (strlen($feedback) > 1000) {
1700 - $feedback = substr($feedback, 0, 1000);
1701 - }
1702 -
1703 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1704 - $existing = $wpdb->get_var($wpdb->prepare(
1705 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1706 - $session_id
1707 - ));
1708 -
1709 - if ($existing) {
1710 - if ($feedback !== '') {
1711 - $wpdb->update(
1712 - $table_name,
1713 - array('rating_feedback' => $feedback),
1714 - array('id' => (int) $existing),
1715 - array('%s'),
1716 - array('%d')
1717 - );
1718 - }
1719 - wp_send_json_success(array('updated' => true));
1720 - }
1721 -
1722 - $inserted = $wpdb->insert(
1723 - $table_name,
1724 - array(
1725 - 'session_id' => $session_id,
1726 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1727 - 'rating_value' => $rating_raw,
1728 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1729 - 'created_at' => current_time('mysql'),
1730 - ),
1731 - array('%s', '%s', '%d', '%s', '%s')
1732 - );
1733 -
1734 - if ($inserted === false) {
1735 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1736 - }
1737 -
1738 - wp_send_json_success(array('saved' => true));
1739 -}
1740 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1741 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
979 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');