PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / 2.6.1
MxChat – AI Chatbot & Content Generation for WordPress v2.6.1
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 -779 3.2.132.6.1 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: 2.6.1
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
@@ -15,41 +15,15 @@
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 27 $domain = 'mxchat';
54 28 $locale = determine_locale();
55 29
@@ -64,347 +38,11 @@
64 38 load_plugin_textdomain($domain, false, dirname(plugin_basename(__FILE__)) . '/languages');
65 39 }
66 40 add_action('init', 'mxchat_load_textdomain');
67 41
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 42 // Include classes with error handling
403 43 function mxchat_include_classes() {
404 44 $class_files = array(
405 - 'includes/class-mxchat-model-catalog.php',
406 - 'includes/class-mxchat-tool-registry.php',
407 45 'includes/class-mxchat-integrator.php',
408 46 'includes/class-mxchat-admin.php',
409 47 'includes/class-mxchat-public.php',
410 48 'includes/class-mxchat-utils.php',
@@ -409,13 +47,10 @@
409 47 'includes/class-mxchat-public.php',
410 48 'includes/class-mxchat-utils.php',
411 49 'includes/class-mxchat-user.php',
412 50 'includes/class-mxchat-meta-box.php',
413 - 'includes/class-mxchat-chunker.php',
51 + 'includes/pdf-parser/alt_autoload.php',
414 52 '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 53 'admin/class-ajax-handler.php',
419 54 'admin/class-pinecone-manager.php',
420 55 'admin/class-knowledge-manager.php'
421 56 );
@@ -427,50 +62,11 @@
427 62 } else {
428 63 //error_log('MxChat: Missing class file - ' . $file);
429 64 }
430 65 }
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 66 }
455 67
456 68 /**
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 69 * Create URL click tracking table
474 70 */
475 71 function mxchat_create_url_clicks_table() {
476 72 global $wpdb;
@@ -738,9 +334,9 @@
738 334
739 335 // Add index for bot_id
740 336 $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
741 337
742 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
338 + error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
743 339 }
744 340
745 341 // Mark migration as complete
746 342 update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
@@ -775,9 +371,9 @@
775 371
776 372 // Add index for better query performance
777 373 $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
778 374
779 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
375 + error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
780 376 }
781 377
782 378 // Mark migration as complete
783 379 update_option('mxchat_content_type_migration_version', '2.5.6');
@@ -783,33 +379,8 @@
783 379 update_option('mxchat_content_type_migration_version', '2.5.6');
784 380 }
785 381
786 382 /**
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 -/**
812 383 * 2.5.2: Create queue processing tables for reliable background processing
813 384 */
814 385 function mxchat_create_queue_tables() {
815 386 global $wpdb;
@@ -857,58 +428,8 @@
857 428 //error_log("MxChat: Queue tables created/updated successfully");
858 429 }
859 430
860 431 /**
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 -/**
911 432 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
912 433 * This fixes "url, source_url. The supplied values may be too long" errors
913 434 */
914 435 function mxchat_fix_url_column_size() {
@@ -931,80 +452,22 @@
931 452
932 453 /**
933 454 * Migrate deprecated AI models to their replacements
934 455 * 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.
937 456 */
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 - */
947 457 function mxchat_migrate_deprecated_models() {
948 458 $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) {
459 +
460 + // Check if model is set and is the deprecated Claude 3.5 Sonnet
461 + if (isset($options['model']) && $options['model'] === 'claude-3-5-sonnet-20241022') {
462 + // Update to Claude 3.7 Sonnet (the replacement model)
463 + $options['model'] = 'claude-3-7-sonnet-20250219';
1004 464 update_option('mxchat_options', $options);
465 +
466 + // Set a flag to show admin notice
1005 467 update_option('mxchat_model_migrated_notice', true);
1006 - update_option('mxchat_model_migration_message', $migration_message);
468 +
469 + //error_log('MxChat: Migrated deprecated Claude 3.5 Sonnet to Claude 3.7 Sonnet');
1007 470 }
1008 471 }
1009 472
1010 473 /**
@@ -1011,19 +474,17 @@
1011 474 * Show admin notice after model migration
1012 475 */
1013 476 function mxchat_show_migration_notice() {
1014 477 if (get_option('mxchat_model_migrated_notice')) {
1015 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
1016 478 ?>
1017 479 <div class="notice notice-info is-dismissible">
1018 480 <p>
1019 481 <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
1020 - <?php echo esc_html($migration_message); ?>
482 + <?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 483 </p>
1022 484 </div>
1023 485 <?php
1024 486 delete_option('mxchat_model_migrated_notice');
1025 - delete_option('mxchat_model_migration_message');
1026 487 }
1027 488 }
1028 489
1029 490 function mxchat_activate() {
@@ -1063,26 +524,13 @@
1063 524 enabled_bots LONGTEXT DEFAULT NULL,
1064 525 PRIMARY KEY (id)
1065 526 ) $charset_collate;";
1066 527
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 - ) $charset_collate;";
1078 -
1079 528 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1080 529
1081 530 // Create other tables
1082 531 dbDelta($sql_system_prompt);
1083 532 dbDelta($sql_intents_table);
1084 - dbDelta($sql_intent_phrases_table);
1085 533
1086 534 // Create URL click tracking table
1087 535 mxchat_create_url_clicks_table();
1088 536
@@ -1091,14 +539,8 @@
1091 539
1092 540 // NEW 2.5.2: Create queue processing tables
1093 541 mxchat_create_queue_tables();
1094 542
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 543 // Ensure additional columns in system prompt table
1102 544 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1103 545 if (!empty($existing_system_columns)) {
1104 546 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1141,11 +583,8 @@
1141 583
1142 584 // Run migration for existing installations
1143 585 mxchat_migrate_pinecone_roles_add_bot_id();
1144 586
1145 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1146 - mxchat_backfill_active_embedding_model();
1147 -
1148 587 // Setup cron jobs
1149 588 mxchat_setup_cron_jobs();
1150 589
1151 590 // Update version
@@ -1180,14 +619,13 @@
1180 619 // Clear fallback flags if cron scheduling succeeded
1181 620 delete_option('mxchat_use_fallback_rate_limits');
1182 621 }
1183 622
1184 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
623 + // Schedule transcript cleanup if configured
1185 624 $transcript_options = get_option('mxchat_transcripts_options', array());
1186 625 $cleanup_interval = isset($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' || $custom_retention > 0) {
626 +
627 + if ($cleanup_interval !== 'never') {
1190 628 // Check if not already scheduled
1191 629 if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1192 630 // Schedule to run daily at 3 AM
1193 631 $next_run = strtotime('tomorrow 3:00 AM');
@@ -1264,14 +702,11 @@
1264 702
1265 703 // Version-specific migrations
1266 704 if ($current_version !== $plugin_version) {
1267 705 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1268 -
706 +
1269 707 // Run live agent update BEFORE updating the stored version
1270 708 mxchat_handle_live_agent_update();
1271 -
1272 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1273 - mxchat_handle_theme_migration_notice();
1274 709
1275 710 // Run role restriction migration for 2.4.1
1276 711 if (version_compare($current_version, '2.4.1', '<')) {
1277 712 mxchat_add_role_restriction_column();
@@ -1300,35 +735,8 @@
1300 735 mxchat_ensure_all_columns($chat_table);
1301 736 //error_log("MxChat: rag_context column migration for 2.6.0");
1302 737 }
1303 738
1304 - // 3.0.5: Migrate deprecated Gemini embedding model
1305 - if (version_compare($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 739 // Run full activation to ensure everything is up to date
1332 740 mxchat_activate();
1333 741
1334 742 // Run migration functions
@@ -1460,59 +868,31 @@
1460 868 function mxchat_handle_live_agent_update() {
1461 869 // Get the CURRENT stored version (before it gets updated)
1462 870 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1463 871 $new_version = '2.2.2';
1464 -
872 +
1465 873 // Only run this once for the update to 2.2.2
1466 874 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1467 -
875 +
1468 876 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1469 877 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1470 878 $options = get_option('mxchat_options', array());
1471 -
879 +
1472 880 // Check if live agent was previously enabled
1473 881 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1474 882 // Disable live agent
1475 883 $options['live_agent_status'] = 'off';
1476 884 update_option('mxchat_options', $options);
1477 -
885 +
1478 886 // Set flag to show the notification banner
1479 887 update_option('mxchat_show_live_agent_disabled_notice', true);
1480 888 }
1481 -
889 +
1482 890 // Mark this update as handled
1483 891 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1484 892 }
1485 893 }
1486 894
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 895 // Initialize plugin safely
1516 896 function mxchat_init() {
1517 897 // Include all class files first
1518 898 mxchat_include_classes();
@@ -1544,32 +924,10 @@
1544 924 // Initialize meta box class
1545 925 if (class_exists('MxChat_Meta_Box')) {
1546 926 new MxChat_Meta_Box();
1547 927 }
1548 -
1549 928 }
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 -
929 +
1572 930 // Initialize public classes
1573 931 if (class_exists('MxChat_Public')) {
1574 932 $mxchat_public = new MxChat_Public();
1575 933 }
@@ -1613,57 +971,10 @@
1613 971 $checked = true;
1614 972
1615 973 mxchat_migrate_pinecone_roles_add_bot_id();
1616 974 mxchat_migrate_add_content_type_column();
1617 - mxchat_migrate_add_translations_table();
1618 - mxchat_migrate_add_session_ratings_table();
1619 975 }
1620 976
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 977 // Register activation hook
1667 978 register_activation_hook(__FILE__, 'mxchat_activate');
1668 979
1669 980 // Add cron schedule
@@ -1675,67 +986,5 @@
1675 986 return $schedules;
1676 987 });
1677 988
1678 989 // 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');
990 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');