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MxChat – AI Chatbot & Content Generation for WordPress / 2.6.3
MxChat – AI Chatbot & Content Generation for WordPress v2.6.3
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 +28 -759 3.2.11 → 2.6.3 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: 3.2.11
6 + * Version: 2.6.3
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
@@ -15,20 +15,13 @@
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 26 function mxchat_load_textdomain() {
34 27 $domain = 'mxchat';
@@ -45,347 +38,11 @@
45 38 load_plugin_textdomain($domain, false, dirname(plugin_basename(__FILE__)) . '/languages');
46 39 }
47 40 add_action('init', 'mxchat_load_textdomain');
48 41
49 -/**
50 - * One-time migration: gemini-3-pro-preview was shut down by Google on March 9, 2026.
51 - * Existing installs with the dead ID get auto-remapped to gemini-3.1-pro-preview
52 - * (Google's official migration target) the first time admin_init fires after update.
53 - */
54 -add_action('admin_init', function () {
55 - if (get_option('mxchat_gemini_3_remap_done')) {
56 - return;
57 - }
58 - $opts = get_option('mxchat_options');
59 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'gemini-3-pro-preview') {
60 - $opts['model'] = 'gemini-3.1-pro-preview';
61 - update_option('mxchat_options', $opts);
62 - }
63 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'gemini-3-pro-preview') {
64 - $opts['content_model'] = 'gemini-3.1-pro-preview';
65 - update_option('mxchat_options', $opts);
66 - }
67 - update_option('mxchat_gemini_3_remap_done', 1);
68 -});
69 -
70 -/**
71 - * One-time migration: the Grok 2 family was retired by xAI (grok-2, grok-2-1212,
72 - * grok-2-latest, grok-2-vision-1212 all return 400 "Model not found"). Existing
73 - * installs with the dead ID get auto-remapped to grok-4-1-fast-non-reasoning
74 - * (modern, fast, broadly available) the first time admin_init fires after update.
75 - */
76 -add_action('admin_init', function () {
77 - if (get_option('mxchat_grok_2_remap_done')) {
78 - return;
79 - }
80 - $opts = get_option('mxchat_options');
81 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'grok-2') {
82 - $opts['model'] = 'grok-4-1-fast-non-reasoning';
83 - update_option('mxchat_options', $opts);
84 - }
85 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'grok-2') {
86 - $opts['content_model'] = 'grok-4-1-fast-non-reasoning';
87 - update_option('mxchat_options', $opts);
88 - }
89 - update_option('mxchat_grok_2_remap_done', 1);
90 -});
91 -
92 -/**
93 - * One-time migration: Anthropic retired the Claude 4 (2025-05-14) snapshots on
94 - * June 15, 2026 — claude-opus-4-20250514 and claude-sonnet-4-20250514 now return
95 - * an API error. Existing installs with a dead ID get auto-remapped to the current
96 - * equivalents Anthropic recommends (Opus 4.8 / Sonnet 4.6) the first time admin_init
97 - * fires after update. Mirrors the gemini-3-pro-preview / grok-2 rescues above.
98 - */
99 -add_action('admin_init', function () {
100 - if (get_option('mxchat_claude_4_retire_remap_done')) {
101 - return;
102 - }
103 - $map = array(
104 - 'claude-opus-4-20250514' => 'claude-opus-4-8',
105 - 'claude-sonnet-4-20250514' => 'claude-sonnet-4-6',
106 - );
107 - $opts = get_option('mxchat_options');
108 - if (is_array($opts)) {
109 - $changed = false;
110 - if (isset($opts['model']) && isset($map[$opts['model']])) {
111 - $opts['model'] = $map[$opts['model']];
112 - $changed = true;
113 - }
114 - if (isset($opts['content_model']) && isset($map[$opts['content_model']])) {
115 - $opts['content_model'] = $map[$opts['content_model']];
116 - $changed = true;
117 - }
118 - if ($changed) {
119 - update_option('mxchat_options', $opts);
120 - }
121 - }
122 - update_option('mxchat_claude_4_retire_remap_done', 1);
123 -});
124 -
125 -/**
126 - * Exclude MxChat assets from caching plugin optimizations
127 - *
128 - * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache,
129 - * W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by
130 - * removing "unused" CSS, minifying/combining JS, or deferring/delaying jQuery.
131 - *
132 - * Both chat-script.js and floating-script.js depend on jQuery, so jQuery must also
133 - * be excluded from any optimization that changes load order or timing.
134 - */
135 -
136 -// ── WP Rocket ────────────────────────────────────────────────────────────────
137 -
138 -// Exclude from Remove Unused CSS (RUCSS)
139 -add_filter('rocket_rucss_inline_atts_exclusions', function($exclusions) {
140 - if (!is_array($exclusions)) $exclusions = array();
141 - $exclusions[] = 'mxchat';
142 - return $exclusions;
143 -});
144 -
145 -// Exclude CSS from minification/combination
146 -add_filter('rocket_exclude_css', function($excluded) {
147 - if (!is_array($excluded)) $excluded = array();
148 - $excluded[] = '/plugins/mxchat-basic/css/chat-style.css';
149 - return $excluded;
150 -});
151 -
152 -// Exclude JS from minification/combination
153 -add_filter('rocket_exclude_js', function($excluded) {
154 - if (!is_array($excluded)) $excluded = array();
155 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
156 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
157 - $excluded[] = '/jquery-core';
158 - $excluded[] = '/jquery.min.js';
159 - $excluded[] = '/jquery.js';
160 - $excluded[] = '/jquery-migrate';
161 - return $excluded;
162 -});
163 -
164 -// Exclude JS from defer
165 -add_filter('rocket_exclude_defer_js', function($excluded) {
166 - if (!is_array($excluded)) $excluded = array();
167 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
168 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
169 - $excluded[] = '/jquery-core';
170 - $excluded[] = '/jquery.min.js';
171 - $excluded[] = '/jquery.js';
172 - $excluded[] = '/jquery-migrate';
173 - return $excluded;
174 -});
175 -
176 -// Exclude from delay JS execution
177 -add_filter('rocket_delay_js_exclusions', function($excluded) {
178 - if (!is_array($excluded)) $excluded = array();
179 - $excluded[] = 'mxchat';
180 - $excluded[] = 'chat-script';
181 - $excluded[] = 'floating-script';
182 - $excluded[] = '/jquery-core';
183 - $excluded[] = '/jquery.min.js';
184 - $excluded[] = '/jquery.js';
185 - $excluded[] = '/jquery-migrate';
186 - return $excluded;
187 -});
188 -
189 -// ── LiteSpeed Cache ──────────────────────────────────────────────────────────
190 -
191 -// Exclude CSS from optimization
192 -add_filter('litespeed_optimize_css_excludes', function($excluded) {
193 - if (!is_array($excluded)) $excluded = array();
194 - $excluded[] = 'chat-style.css';
195 - $excluded[] = 'mxchat';
196 - return $excluded;
197 -});
198 -
199 -// Exclude from UCSS (Unique CSS) - prevents LiteSpeed from stripping "unused" MxChat CSS
200 -add_filter('litespeed_ucss_whitelist', function($whitelist) {
201 - if (!is_array($whitelist)) $whitelist = array();
202 - $whitelist[] = '.mxchat-chatbot-wrapper';
203 - $whitelist[] = '.floating-chatbot';
204 - $whitelist[] = '.floating-chatbot-button';
205 - $whitelist[] = '.chatbot-top-bar';
206 - $whitelist[] = '.mxchat-chatbot';
207 - $whitelist[] = '.chat-container';
208 - $whitelist[] = '.chat-box';
209 - $whitelist[] = '.bot-message';
210 - $whitelist[] = '.input-container';
211 - $whitelist[] = '.chat-input';
212 - $whitelist[] = '.send-button';
213 - $whitelist[] = '.pre-chat-message';
214 - $whitelist[] = '.mxchat-popular-questions';
215 - $whitelist[] = '.chat-toolbar';
216 - $whitelist[] = '.exit-chat';
217 - $whitelist[] = '.email-blocker';
218 - return $whitelist;
219 -});
220 -
221 -// Exclude CSS from CCSS (Critical CSS) generation
222 -add_filter('litespeed_optm_ccss_exc', function($excluded) {
223 - if (!is_array($excluded)) $excluded = array();
224 - $excluded[] = 'chat-style.css';
225 - $excluded[] = 'mxchat';
226 - return $excluded;
227 -});
228 -
229 -// Exclude JS from defer
230 -add_filter('litespeed_optm_js_defer_exc', function($excluded) {
231 - if (!is_array($excluded)) $excluded = array();
232 - $excluded[] = 'chat-script.js';
233 - $excluded[] = 'floating-script.js';
234 - $excluded[] = 'mxchat';
235 - $excluded[] = 'jquery.min.js';
236 - $excluded[] = 'jquery.js';
237 - return $excluded;
238 -});
239 -
240 -// Exclude JS from combining
241 -add_filter('litespeed_optm_js_exc', function($excluded) {
242 - if (!is_array($excluded)) $excluded = array();
243 - $excluded[] = 'chat-script.js';
244 - $excluded[] = 'floating-script.js';
245 - $excluded[] = 'mxchat';
246 - $excluded[] = 'jquery.min.js';
247 - $excluded[] = 'jquery.js';
248 - return $excluded;
249 -});
250 -
251 -// Exclude JS from delayed execution
252 -add_filter('litespeed_optm_js_delay_exc', function($excluded) {
253 - if (!is_array($excluded)) $excluded = array();
254 - $excluded[] = 'chat-script.js';
255 - $excluded[] = 'floating-script.js';
256 - $excluded[] = 'mxchat';
257 - return $excluded;
258 -});
259 -
260 -// Exclude from Guest Mode optimization
261 -add_filter('litespeed_guest_optm_exc', function($excluded) {
262 - if (!is_array($excluded)) $excluded = array();
263 - $excluded[] = 'mxchat';
264 - $excluded[] = 'chat-style';
265 - $excluded[] = 'chat-script';
266 - $excluded[] = 'floating-script';
267 - return $excluded;
268 -});
269 -
270 -// ── Autoptimize ──────────────────────────────────────────────────────────────
271 -
272 -// Exclude CSS from optimization (comma-separated strings)
273 -add_filter('autoptimize_filter_css_exclude', function($excluded) {
274 - if (!is_string($excluded)) $excluded = '';
275 - return $excluded . ', mxchat, chat-style.css';
276 -});
277 -
278 -// Exclude JS from optimization (comma-separated strings)
279 -add_filter('autoptimize_filter_js_exclude', function($excluded) {
280 - if (!is_string($excluded)) $excluded = '';
281 - return $excluded . ', mxchat, chat-script.js, floating-script.js, jquery.min.js, jquery.js';
282 -});
283 -
284 -// ── SG Optimizer (SiteGround) ────────────────────────────────────────────────
285 -
286 -add_filter('sgo_js_minify_exclude', function($excluded) {
287 - if (!is_array($excluded)) $excluded = array();
288 - $excluded[] = 'chat-script.js';
289 - $excluded[] = 'floating-script.js';
290 - $excluded[] = 'jquery.min.js';
291 - return $excluded;
292 -});
293 -
294 -add_filter('sgo_javascript_combine_exclude', function($excluded) {
295 - if (!is_array($excluded)) $excluded = array();
296 - $excluded[] = 'chat-script.js';
297 - $excluded[] = 'floating-script.js';
298 - $excluded[] = 'jquery.min.js';
299 - return $excluded;
300 -});
301 -
302 -add_filter('sgo_js_async_exclude', function($excluded) {
303 - if (!is_array($excluded)) $excluded = array();
304 - $excluded[] = 'chat-script.js';
305 - $excluded[] = 'floating-script.js';
306 - $excluded[] = 'jquery.min.js';
307 - return $excluded;
308 -});
309 -
310 -// ── W3 Total Cache ───────────────────────────────────────────────────────────
311 -
312 -add_filter('w3tc_minify_js_do_tag_minification', function($do_minify, $script_tag, $file) {
313 - if (strpos($file, 'chat-script.js') !== false ||
314 - strpos($file, 'floating-script.js') !== false ||
315 - strpos($file, 'jquery.min.js') !== false ||
316 - strpos($file, 'jquery.js') !== false) {
317 - return false;
318 - }
319 - return $do_minify;
320 -}, 10, 3);
321 -
322 -// ── WP Super Cache ──────────────────────────────────────────────────────────
323 -
324 -add_filter('wpsc_rejected_uri', function($rejected) {
325 - if (!is_array($rejected)) $rejected = array();
326 - $rejected[] = 'wp-admin/admin-ajax.php';
327 - return $rejected;
328 -});
329 -
330 -// ── Page-cache bypass for chat AJAX (companion to the 3.2.6 nonce-race hotfix)
331 -// Each cache plugin gets its own filter export so that visitors hitting an
332 -// edge-cached page never receive cached chat-AJAX responses. The chat send /
333 -// stream send / file upload all POST to /wp-admin/admin-ajax.php with
334 -// `action=mxchat_*`. Without these exports, a cache plugin can stale a response
335 -// and break the per-session nonce flow on the first message.
336 -
337 -// WP Rocket — `rocket_cache_reject_uri` takes a flat array of regex strings.
338 -add_filter('rocket_cache_reject_uri', function($uris) {
339 - if (!is_array($uris)) $uris = array();
340 - $uris[] = '/wp-admin/admin-ajax\.php\?action=mxchat_.*';
341 - return $uris;
342 -});
343 -
344 -// LiteSpeed Cache — `litespeed_cache_no_cache_for_request` short-circuits
345 -// caching when the request matches our chat-AJAX pattern.
346 -add_filter('litespeed_cache_no_cache_for_request', function($no_cache) {
347 - if ($no_cache) return $no_cache;
348 - if (!empty($_SERVER['REQUEST_URI']) &&
349 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
350 - !empty($_REQUEST['action']) &&
351 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
352 - return true;
353 - }
354 - return $no_cache;
355 -});
356 -
357 -// W3 Total Cache — `w3tc_pgcache_request_skip_uri` flips page-cache off when
358 -// the URI matches.
359 -add_filter('w3tc_pgcache_request_skip_uri', function($skip) {
360 - if ($skip) return $skip;
361 - if (!empty($_SERVER['REQUEST_URI']) &&
362 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
363 - !empty($_REQUEST['action']) &&
364 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
365 - return true;
366 - }
367 - return $skip;
368 -});
369 -
370 -// FlyingPress — `flying_press_cacheable` takes a boolean and is run per
371 -// request. Same pattern as LiteSpeed / W3TC.
372 -add_filter('flying_press_cacheable', function($cacheable) {
373 - if (!$cacheable) return $cacheable;
374 - if (!empty($_SERVER['REQUEST_URI']) &&
375 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
376 - !empty($_REQUEST['action']) &&
377 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
378 - return false;
379 - }
380 - return $cacheable;
381 -});
382 -
383 42 // Include classes with error handling
384 43 function mxchat_include_classes() {
385 44 $class_files = array(
386 - 'includes/class-mxchat-model-catalog.php',
387 - 'includes/class-mxchat-tool-registry.php',
388 45 'includes/class-mxchat-integrator.php',
389 46 'includes/class-mxchat-admin.php',
390 47 'includes/class-mxchat-public.php',
391 48 'includes/class-mxchat-utils.php',
@@ -391,12 +48,10 @@
391 48 'includes/class-mxchat-utils.php',
392 49 'includes/class-mxchat-user.php',
393 50 'includes/class-mxchat-meta-box.php',
394 51 'includes/class-mxchat-chunker.php',
52 + 'includes/pdf-parser/alt_autoload.php',
395 53 'includes/class-mxchat-word-handler.php',
396 - 'includes/class-mxchat-content-generator.php',
397 - 'includes/class-mxchat-cache-purge.php',
398 - 'includes/class-rest-api.php',
399 54 'admin/class-ajax-handler.php',
400 55 'admin/class-pinecone-manager.php',
401 56 'admin/class-knowledge-manager.php'
402 57 );
@@ -408,50 +63,11 @@
408 63 } else {
409 64 //error_log('MxChat: Missing class file - ' . $file);
410 65 }
411 66 }
412 -
413 - // Register the native function-calling admin-post save handler (a41dee).
414 - if (class_exists('MxChat_Tool_Registry')) {
415 - MxChat_Tool_Registry::init();
416 - }
417 -
418 - // Admin pages that aren't classes (procedural include).
419 - if (is_admin()) {
420 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
421 - if (file_exists($admin_api_page)) {
422 - require_once $admin_api_page;
423 - }
424 - // f7c7d4 renamed this file admin-dashboard-page.php → admin-onboarding-page.php.
425 - // The require MUST live here (admin bootstrap) and not just inside
426 - // mxchat_add_plugin_page() on the admin_menu hook — admin_menu does NOT
427 - // fire on admin-ajax.php requests, so the wizard's AJAX handlers
428 - // (plan-905439: mxchat_onboarding_kb_status / save_step / mark_step /
429 - // auto_graduate + the f7c7d4 dismiss handler) would never register.
430 - $admin_onboarding_page = plugin_dir_path(__FILE__) . 'includes/admin-onboarding-page.php';
431 - if (file_exists($admin_onboarding_page)) {
432 - require_once $admin_onboarding_page;
433 - }
434 - }
435 67 }
436 68
437 69 /**
438 - * Lazy-load the PDF parser library only when needed.
439 - * Avoids loading 44 files on every page request.
440 - */
441 -function mxchat_load_pdf_parser() {
442 - if (class_exists('\Smalot\PdfParser\Parser')) {
443 - return true;
444 - }
445 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
446 - if (file_exists($autoload_path)) {
447 - require_once $autoload_path;
448 - return true;
449 - }
450 - return false;
451 -}
452 -
453 -/**
454 70 * Create URL click tracking table
455 71 */
456 72 function mxchat_create_url_clicks_table() {
457 73 global $wpdb;
@@ -719,9 +335,9 @@
719 335
720 336 // Add index for bot_id
721 337 $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
722 338
723 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
339 + error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
724 340 }
725 341
726 342 // Mark migration as complete
727 343 update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
@@ -756,9 +372,9 @@
756 372
757 373 // Add index for better query performance
758 374 $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
759 375
760 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
376 + error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
761 377 }
762 378
763 379 // Mark migration as complete
764 380 update_option('mxchat_content_type_migration_version', '2.5.6');
@@ -764,33 +380,8 @@
764 380 update_option('mxchat_content_type_migration_version', '2.5.6');
765 381 }
766 382
767 383 /**
768 - * 3.2.4: Backfill the active embedding model option for installs that already
769 - * have KB content but no stamped model. The mismatch warning compares this
770 - * against the user's currently selected model — no per-row column needed.
771 - */
772 -function mxchat_backfill_active_embedding_model() {
773 - global $wpdb;
774 -
775 - if (get_option('mxchat_active_embedding_model', '') !== '') {
776 - return;
777 - }
778 -
779 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
780 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
781 - return;
782 - }
783 -
784 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
785 - if ($kb_count > 0) {
786 - $options = get_option('mxchat_options', array());
787 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
788 - update_option('mxchat_active_embedding_model', $current_model, false);
789 - }
790 -}
791 -
792 -/**
793 384 * 2.5.2: Create queue processing tables for reliable background processing
794 385 */
795 386 function mxchat_create_queue_tables() {
796 387 global $wpdb;
@@ -838,58 +429,8 @@
838 429 //error_log("MxChat: Queue tables created/updated successfully");
839 430 }
840 431
841 432 /**
842 - * Create transcript translations table for persisting translations
843 - */
844 -function mxchat_create_translations_table() {
845 - global $wpdb;
846 - $charset_collate = $wpdb->get_charset_collate();
847 -
848 - $table_name = $wpdb->prefix . 'mxchat_transcript_translations';
849 - $sql = "CREATE TABLE $table_name (
850 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
851 - session_id varchar(255) NOT NULL,
852 - language_code varchar(10) NOT NULL,
853 - translations longtext NOT NULL,
854 - created_at datetime NOT NULL,
855 - updated_at datetime NOT NULL,
856 - PRIMARY KEY (id),
857 - UNIQUE KEY session_lang (session_id, language_code),
858 - KEY session_id (session_id)
859 - ) $charset_collate;";
860 -
861 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
862 - dbDelta($sql);
863 -}
864 -
865 -/**
866 - * Create per-session satisfaction ratings table (v3.2.6)
867 - * Stores one 👍/👎 rating + optional feedback per chat session.
868 - */
869 -function mxchat_create_session_ratings_table() {
870 - global $wpdb;
871 - $charset_collate = $wpdb->get_charset_collate();
872 -
873 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
874 - $sql = "CREATE TABLE $table_name (
875 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
876 - session_id varchar(255) NOT NULL,
877 - bot_id varchar(50) NOT NULL DEFAULT 'default',
878 - rating_value tinyint(1) NOT NULL,
879 - rating_feedback text DEFAULT NULL,
880 - created_at datetime NOT NULL,
881 - PRIMARY KEY (id),
882 - UNIQUE KEY session_id (session_id),
883 - KEY bot_id (bot_id),
884 - KEY created_at (created_at)
885 - ) $charset_collate;";
886 -
887 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
888 - dbDelta($sql);
889 -}
890 -
891 -/**
892 433 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
893 434 * This fixes "url, source_url. The supplied values may be too long" errors
894 435 */
895 436 function mxchat_fix_url_column_size() {
@@ -912,80 +453,22 @@
912 453
913 454 /**
914 455 * Migrate deprecated AI models to their replacements
915 456 * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
916 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
917 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
918 457 */
919 -function mxchat_migrate_transcripts_charset() {
920 - global $wpdb;
921 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
922 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
923 -}
924 -
925 -/**
926 - * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
927 - */
928 458 function mxchat_migrate_deprecated_models() {
929 459 $options = get_option('mxchat_options', array());
930 - $migrated = false;
931 - $migration_message = '';
932 -
933 - if (!isset($options['model'])) {
934 - return;
935 - }
936 -
937 - $current_model = $options['model'];
938 -
939 - // Migrate deprecated Claude models to Claude Opus 4.6 (recommended replacement per Anthropic)
940 - $deprecated_claude_models = array(
941 - 'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025
942 - 'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025
943 - 'claude-3-7-sonnet-20250219', // Retiring Feb 19, 2026
944 - 'claude-3-opus-20240229', // Retired Jan 5, 2026
945 - 'claude-3-sonnet-20240229', // Legacy
946 - 'claude-3-haiku-20240307', // Legacy
947 - );
948 - if (in_array($current_model, $deprecated_claude_models, true)) {
949 - $options['model'] = 'claude-opus-4-6';
950 - $migrated = true;
951 - $migration_message = sprintf(
952 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
953 - $current_model
954 - );
955 - }
956 -
957 - // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
958 - if ($current_model === 'claude-3-5-haiku-20241022') {
959 - $options['model'] = 'claude-haiku-4-5-20251001';
960 - $migrated = true;
961 - $migration_message = 'Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.';
962 - }
963 -
964 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest
965 - if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
966 - $options['model'] = 'gpt-5.1-chat-latest';
967 - $migrated = true;
968 - $migration_message = sprintf(
969 - 'Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.',
970 - $current_model
971 - );
972 - }
973 -
974 - // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
975 - if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
976 - $options['model'] = 'gpt-5-mini';
977 - $migrated = true;
978 - $migration_message = sprintf(
979 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
980 - $current_model
981 - );
982 - }
983 -
984 - if ($migrated) {
460 +
461 + // Check if model is set and is the deprecated Claude 3.5 Sonnet
462 + if (isset($options['model']) && $options['model'] === 'claude-3-5-sonnet-20241022') {
463 + // Update to Claude 3.7 Sonnet (the replacement model)
464 + $options['model'] = 'claude-3-7-sonnet-20250219';
985 465 update_option('mxchat_options', $options);
466 +
467 + // Set a flag to show admin notice
986 468 update_option('mxchat_model_migrated_notice', true);
987 - update_option('mxchat_model_migration_message', $migration_message);
469 +
470 + //error_log('MxChat: Migrated deprecated Claude 3.5 Sonnet to Claude 3.7 Sonnet');
988 471 }
989 472 }
990 473
991 474 /**
@@ -992,19 +475,17 @@
992 475 * Show admin notice after model migration
993 476 */
994 477 function mxchat_show_migration_notice() {
995 478 if (get_option('mxchat_model_migrated_notice')) {
996 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
997 479 ?>
998 480 <div class="notice notice-info is-dismissible">
999 481 <p>
1000 482 <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
1001 - <?php echo esc_html($migration_message); ?>
483 + <?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'); ?>
1002 484 </p>
1003 485 </div>
1004 486 <?php
1005 487 delete_option('mxchat_model_migrated_notice');
1006 - delete_option('mxchat_model_migration_message');
1007 488 }
1008 489 }
1009 490
1010 491 function mxchat_activate() {
@@ -1044,26 +525,13 @@
1044 525 enabled_bots LONGTEXT DEFAULT NULL,
1045 526 PRIMARY KEY (id)
1046 527 ) $charset_collate;";
1047 528
1048 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
1049 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
1050 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
1051 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1052 - intent_id BIGINT(20) UNSIGNED NOT NULL,
1053 - phrase TEXT NOT NULL,
1054 - embedding_vector LONGTEXT NOT NULL,
1055 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1056 - PRIMARY KEY (id),
1057 - KEY intent_id (intent_id)
1058 - ) $charset_collate;";
1059 -
1060 529 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1061 530
1062 531 // Create other tables
1063 532 dbDelta($sql_system_prompt);
1064 533 dbDelta($sql_intents_table);
1065 - dbDelta($sql_intent_phrases_table);
1066 534
1067 535 // Create URL click tracking table
1068 536 mxchat_create_url_clicks_table();
1069 537
@@ -1072,14 +540,8 @@
1072 540
1073 541 // NEW 2.5.2: Create queue processing tables
1074 542 mxchat_create_queue_tables();
1075 543
1076 - // Create transcript translations table
1077 - mxchat_create_translations_table();
1078 -
1079 - // Create per-session satisfaction ratings table (v3.2.6)
1080 - mxchat_create_session_ratings_table();
1081 -
1082 544 // Ensure additional columns in system prompt table
1083 545 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1084 546 if (!empty($existing_system_columns)) {
1085 547 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1122,11 +584,8 @@
1122 584
1123 585 // Run migration for existing installations
1124 586 mxchat_migrate_pinecone_roles_add_bot_id();
1125 587
1126 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1127 - mxchat_backfill_active_embedding_model();
1128 -
1129 588 // Setup cron jobs
1130 589 mxchat_setup_cron_jobs();
1131 590
1132 591 // Update version
@@ -1161,14 +620,13 @@
1161 620 // Clear fallback flags if cron scheduling succeeded
1162 621 delete_option('mxchat_use_fallback_rate_limits');
1163 622 }
1164 623
1165 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
624 + // Schedule transcript cleanup if configured
1166 625 $transcript_options = get_option('mxchat_transcripts_options', array());
1167 626 $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1168 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1169 -
1170 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
627 +
628 + if ($cleanup_interval !== 'never') {
1171 629 // Check if not already scheduled
1172 630 if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1173 631 // Schedule to run daily at 3 AM
1174 632 $next_run = strtotime('tomorrow 3:00 AM');
@@ -1245,14 +703,11 @@
1245 703
1246 704 // Version-specific migrations
1247 705 if ($current_version !== $plugin_version) {
1248 706 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1249 -
707 +
1250 708 // Run live agent update BEFORE updating the stored version
1251 709 mxchat_handle_live_agent_update();
1252 -
1253 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1254 - mxchat_handle_theme_migration_notice();
1255 710
1256 711 // Run role restriction migration for 2.4.1
1257 712 if (version_compare($current_version, '2.4.1', '<')) {
1258 713 mxchat_add_role_restriction_column();
@@ -1281,35 +736,8 @@
1281 736 mxchat_ensure_all_columns($chat_table);
1282 737 //error_log("MxChat: rag_context column migration for 2.6.0");
1283 738 }
1284 739
1285 - // 3.0.5: Migrate deprecated Gemini embedding model
1286 - if (version_compare($current_version, '3.0.5', '<')) {
1287 - mxchat_migrate_gemini_embedding_model();
1288 - }
1289 -
1290 - // 3.0.6: Migrate deprecated OpenAI and Claude models
1291 - if (version_compare($current_version, '3.0.6', '<')) {
1292 - mxchat_migrate_deprecated_models();
1293 - }
1294 -
1295 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1296 - if (version_compare($current_version, '3.1.2', '<')) {
1297 - mxchat_migrate_transcripts_charset();
1298 - }
1299 -
1300 - // 3.1.7: Clean up stale shared session email/name entries
1301 - if (version_compare($current_version, '3.1.7', '<')) {
1302 - delete_option('mxchat_email_null');
1303 - delete_option('mxchat_name_null');
1304 - }
1305 -
1306 - // 3.2.4: Backfill active embedding model option for the warning UI
1307 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1308 - if (version_compare($current_version, '3.2.4', '<')) {
1309 - mxchat_backfill_active_embedding_model();
1310 - }
1311 -
1312 740 // Run full activation to ensure everything is up to date
1313 741 mxchat_activate();
1314 742
1315 743 // Run migration functions
@@ -1441,59 +869,31 @@
1441 869 function mxchat_handle_live_agent_update() {
1442 870 // Get the CURRENT stored version (before it gets updated)
1443 871 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1444 872 $new_version = '2.2.2';
1445 -
873 +
1446 874 // Only run this once for the update to 2.2.2
1447 875 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1448 -
876 +
1449 877 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1450 878 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1451 879 $options = get_option('mxchat_options', array());
1452 -
880 +
1453 881 // Check if live agent was previously enabled
1454 882 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1455 883 // Disable live agent
1456 884 $options['live_agent_status'] = 'off';
1457 885 update_option('mxchat_options', $options);
1458 -
886 +
1459 887 // Set flag to show the notification banner
1460 888 update_option('mxchat_show_live_agent_disabled_notice', true);
1461 889 }
1462 -
890 +
1463 891 // Mark this update as handled
1464 892 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1465 893 }
1466 894 }
1467 895
1468 -/**
1469 - * Handle theme migration notice for version 3.0.1
1470 - * Shows a dismissible notice to Pro users about migrating AI-generated themes
1471 - */
1472 -function mxchat_handle_theme_migration_notice() {
1473 - // Get the CURRENT stored version (before it gets updated)
1474 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1475 - $target_version = '3.0.1';
1476 -
1477 - // Only run this once for the update to 3.0.1
1478 - $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
1479 -
1480 - // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1481 - if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1482 - // Check if Pro is activated - only show to Pro users
1483 - $license_status = get_option('mxchat_license_status', 'inactive');
1484 - $is_pro = ($license_status === 'active');
1485 -
1486 - if ($is_pro) {
1487 - // Set flag to show the theme migration notification banner
1488 - update_option('mxchat_show_theme_migration_notice', true);
1489 - }
1490 -
1491 - // Mark this update as handled (whether Pro or not)
1492 - update_option('mxchat_theme_migration_update_3_0_1_handled', true);
1493 - }
1494 -}
1495 -
1496 896 // Initialize plugin safely
1497 897 function mxchat_init() {
1498 898 // Include all class files first
1499 899 mxchat_include_classes();
@@ -1525,32 +925,10 @@
1525 925 // Initialize meta box class
1526 926 if (class_exists('MxChat_Meta_Box')) {
1527 927 new MxChat_Meta_Box();
1528 928 }
1529 -
1530 929 }
1531 -
1532 - // Initialize content generator globally — it registers wp_head hook
1533 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1534 - if (class_exists('MxChat_Content_Generator')) {
1535 - new MxChat_Content_Generator();
1536 - }
1537 -
1538 - // Initialize cache purge globally — settings writes can happen on any
1539 - // request type (admin screens, admin-ajax autosave, wp-cli), and the
1540 - // deferred-purge cron event fires on front-end requests.
1541 - if (class_exists('MxChat_Cache_Purge')) {
1542 - MxChat_Cache_Purge::init();
1543 - }
1544 -
1545 - // Initialize REST API globally — endpoints must be registered on
1546 - // every request (admin and frontend) so they're reachable via /wp-json/.
1547 - // Endpoints are auth-gated and locked until the site owner generates
1548 - // a token in MxChat → API Access.
1549 - if (class_exists('MxChat_Rest_Api')) {
1550 - new MxChat_Rest_Api();
1551 - }
1552 -
930 +
1553 931 // Initialize public classes
1554 932 if (class_exists('MxChat_Public')) {
1555 933 $mxchat_public = new MxChat_Public();
1556 934 }
@@ -1594,57 +972,10 @@
1594 972 $checked = true;
1595 973
1596 974 mxchat_migrate_pinecone_roles_add_bot_id();
1597 975 mxchat_migrate_add_content_type_column();
1598 - mxchat_migrate_add_translations_table();
1599 - mxchat_migrate_add_session_ratings_table();
1600 976 }
1601 977
1602 -/**
1603 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1604 - * For users upgrading from versions before 3.2.6
1605 - */
1606 -function mxchat_migrate_add_session_ratings_table() {
1607 - $migration_key = 'mxchat_session_ratings_table_created';
1608 - if (get_option($migration_key)) {
1609 - return;
1610 - }
1611 - mxchat_create_session_ratings_table();
1612 - update_option($migration_key, '3.2.6');
1613 -}
1614 -
1615 -/**
1616 - * Migration: Create transcript translations table (v3.0.4)
1617 - * For users upgrading from versions before 3.0.4
1618 - */
1619 -function mxchat_migrate_add_translations_table() {
1620 - $migration_key = 'mxchat_translations_table_created';
1621 -
1622 - // Check if migration already ran
1623 - if (get_option($migration_key)) {
1624 - return;
1625 - }
1626 -
1627 - // Create the translations table
1628 - mxchat_create_translations_table();
1629 -
1630 - // Mark migration as complete
1631 - update_option($migration_key, '3.0.4');
1632 -}
1633 -
1634 -/**
1635 - * Migration: Update deprecated Gemini embedding model (v3.0.5)
1636 - * Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected
1637 - */
1638 -function mxchat_migrate_gemini_embedding_model() {
1639 - $options = get_option('mxchat_options', array());
1640 -
1641 - if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') {
1642 - $options['embedding_model'] = 'gemini-embedding-001';
1643 - update_option('mxchat_options', $options);
1644 - }
1645 -}
1646 -
1647 978 // Register activation hook
1648 979 register_activation_hook(__FILE__, 'mxchat_activate');
1649 980
1650 981 // Add cron schedule
@@ -1656,67 +987,5 @@
1656 987 return $schedules;
1657 988 });
1658 989
1659 990 // Register deactivation hook
1660 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1661 -
1662 -/**
1663 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1664 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1665 - * session_id makes this naturally idempotent — only the first rating per
1666 - * session is stored; duplicate POSTs are silent no-ops.
1667 - */
1668 -function mxchat_save_session_rating() {
1669 - global $wpdb;
1670 -
1671 - $session_id = isset($_POST['session_id']) ? sanitize_text_field(wp_unslash($_POST['session_id'])) : '';
1672 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1673 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1674 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1675 -
1676 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1677 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1678 - }
1679 -
1680 - if (strlen($feedback) > 1000) {
1681 - $feedback = substr($feedback, 0, 1000);
1682 - }
1683 -
1684 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1685 - $existing = $wpdb->get_var($wpdb->prepare(
1686 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1687 - $session_id
1688 - ));
1689 -
1690 - if ($existing) {
1691 - if ($feedback !== '') {
1692 - $wpdb->update(
1693 - $table_name,
1694 - array('rating_feedback' => $feedback),
1695 - array('id' => (int) $existing),
1696 - array('%s'),
1697 - array('%d')
1698 - );
1699 - }
1700 - wp_send_json_success(array('updated' => true));
1701 - }
1702 -
1703 - $inserted = $wpdb->insert(
1704 - $table_name,
1705 - array(
1706 - 'session_id' => $session_id,
1707 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1708 - 'rating_value' => $rating_raw,
1709 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1710 - 'created_at' => current_time('mysql'),
1711 - ),
1712 - array('%s', '%s', '%d', '%s', '%s')
1713 - );
1714 -
1715 - if ($inserted === false) {
1716 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1717 - }
1718 -
1719 - wp_send_json_success(array('saved' => true));
1720 -}
1721 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1722 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
991 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');