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MxChat – AI Chatbot & Content Generation for WordPress / 3.0.9
MxChat – AI Chatbot & Content Generation for WordPress v3.0.9
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 +42 -609 3.2.163.0.9 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: 3.2.16
6 + * Version: 3.0.9
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
@@ -15,49 +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 - // MXCHAT_BASE_VERSION: the plain header version, stable across requests even in
28 - // dev mode. Use it for anything PERSISTED or COMPARED (the stored
29 - // mxchat_plugin_version option and the migration gate in
30 - // mxchat_check_for_update). MXCHAT_VERSION keeps the time() suffix in dev for
31 - // ASSET cache-busting only — persisting the suffixed value made the version
32 - // comparison churn every request, re-running the full activation/migration
33 - // suite per page load on dev installs.
34 - define('MXCHAT_BASE_VERSION', $version);
35 - if (MXCHAT_DEV_MODE) {
36 - $version .= '.' . time();
37 - }
38 - define('MXCHAT_VERSION', $version);
23 + define('MXCHAT_VERSION', $plugin_data['Version']);
39 24 }
40 25
41 -/**
42 - * Honest, versioned User-Agent for MXChat remote-content ingestion fetches
43 - * (Knowledge Base PDF import, URL import, sitemap / website crawl).
44 - *
45 - * WAF rulesets (SiteGround/ModSecurity, Wordfence, Cloudflare managed rules)
46 - * flag stale spoofed-browser UAs as scrapers and return 403 — which silently
47 - * broke the single most common KB source: self-hosted media on the site's own
48 - * domain. A truthful crawler identifier is the industry norm for well-behaved
49 - * bots and lets a site owner allowlist "MXChatBot" in their WAF. Filterable so
50 - * a locked-down host can supply a different string without a code change.
51 - */
52 -if (!function_exists('mxchat_ingest_user_agent')) {
53 - function mxchat_ingest_user_agent() {
54 - $version = defined('MXCHAT_VERSION') ? MXCHAT_VERSION : '1.0';
55 - $ua = 'MXChatBot/' . $version . ' (+https://mxchat.ai/bot)';
56 - return apply_filters('mxchat_ingest_user_agent', $ua);
57 - }
58 -}
59 -
60 26 function mxchat_load_textdomain() {
61 27 $domain = 'mxchat';
62 28 $locale = determine_locale();
63 29
@@ -73,84 +39,8 @@
73 39 }
74 40 add_action('init', 'mxchat_load_textdomain');
75 41
76 42 /**
77 - * One-time migration: gemini-3-pro-preview was shut down by Google on March 9, 2026.
78 - * Existing installs with the dead ID get auto-remapped to gemini-3.1-pro-preview
79 - * (Google's official migration target) the first time admin_init fires after update.
80 - */
81 -add_action('admin_init', function () {
82 - if (get_option('mxchat_gemini_3_remap_done')) {
83 - return;
84 - }
85 - $opts = get_option('mxchat_options');
86 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'gemini-3-pro-preview') {
87 - $opts['model'] = 'gemini-3.1-pro-preview';
88 - update_option('mxchat_options', $opts);
89 - }
90 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'gemini-3-pro-preview') {
91 - $opts['content_model'] = 'gemini-3.1-pro-preview';
92 - update_option('mxchat_options', $opts);
93 - }
94 - update_option('mxchat_gemini_3_remap_done', 1);
95 -});
96 -
97 -/**
98 - * One-time migration: the Grok 2 family was retired by xAI (grok-2, grok-2-1212,
99 - * grok-2-latest, grok-2-vision-1212 all return 400 "Model not found"). Existing
100 - * installs with the dead ID get auto-remapped to grok-4-1-fast-non-reasoning
101 - * (modern, fast, broadly available) the first time admin_init fires after update.
102 - */
103 -add_action('admin_init', function () {
104 - if (get_option('mxchat_grok_2_remap_done')) {
105 - return;
106 - }
107 - $opts = get_option('mxchat_options');
108 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'grok-2') {
109 - $opts['model'] = 'grok-4-1-fast-non-reasoning';
110 - update_option('mxchat_options', $opts);
111 - }
112 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'grok-2') {
113 - $opts['content_model'] = 'grok-4-1-fast-non-reasoning';
114 - update_option('mxchat_options', $opts);
115 - }
116 - update_option('mxchat_grok_2_remap_done', 1);
117 -});
118 -
119 -/**
120 - * One-time migration: Anthropic retired the Claude 4 (2025-05-14) snapshots on
121 - * June 15, 2026 — claude-opus-4-20250514 and claude-sonnet-4-20250514 now return
122 - * an API error. Existing installs with a dead ID get auto-remapped to the current
123 - * equivalents Anthropic recommends (Opus 4.8 / Sonnet 4.6) the first time admin_init
124 - * fires after update. Mirrors the gemini-3-pro-preview / grok-2 rescues above.
125 - */
126 -add_action('admin_init', function () {
127 - if (get_option('mxchat_claude_4_retire_remap_done')) {
128 - return;
129 - }
130 - $map = array(
131 - 'claude-opus-4-20250514' => 'claude-opus-4-8',
132 - 'claude-sonnet-4-20250514' => 'claude-sonnet-4-6',
133 - );
134 - $opts = get_option('mxchat_options');
135 - if (is_array($opts)) {
136 - $changed = false;
137 - if (isset($opts['model']) && isset($map[$opts['model']])) {
138 - $opts['model'] = $map[$opts['model']];
139 - $changed = true;
140 - }
141 - if (isset($opts['content_model']) && isset($map[$opts['content_model']])) {
142 - $opts['content_model'] = $map[$opts['content_model']];
143 - $changed = true;
144 - }
145 - if ($changed) {
146 - update_option('mxchat_options', $opts);
147 - }
148 - }
149 - update_option('mxchat_claude_4_retire_remap_done', 1);
150 -});
151 -
152 -/**
153 43 * Exclude MxChat assets from caching plugin optimizations
154 44 *
155 45 * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache,
156 46 * W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by
@@ -218,48 +108,16 @@
218 108 // Exclude CSS from optimization
219 109 add_filter('litespeed_optimize_css_excludes', function($excluded) {
220 110 if (!is_array($excluded)) $excluded = array();
221 111 $excluded[] = 'chat-style.css';
222 - $excluded[] = 'mxchat';
223 112 return $excluded;
224 113 });
225 114
226 -// Exclude from UCSS (Unique CSS) - prevents LiteSpeed from stripping "unused" MxChat CSS
227 -add_filter('litespeed_ucss_whitelist', function($whitelist) {
228 - if (!is_array($whitelist)) $whitelist = array();
229 - $whitelist[] = '.mxchat-chatbot-wrapper';
230 - $whitelist[] = '.floating-chatbot';
231 - $whitelist[] = '.floating-chatbot-button';
232 - $whitelist[] = '.chatbot-top-bar';
233 - $whitelist[] = '.mxchat-chatbot';
234 - $whitelist[] = '.chat-container';
235 - $whitelist[] = '.chat-box';
236 - $whitelist[] = '.bot-message';
237 - $whitelist[] = '.input-container';
238 - $whitelist[] = '.chat-input';
239 - $whitelist[] = '.send-button';
240 - $whitelist[] = '.pre-chat-message';
241 - $whitelist[] = '.mxchat-popular-questions';
242 - $whitelist[] = '.chat-toolbar';
243 - $whitelist[] = '.exit-chat';
244 - $whitelist[] = '.email-blocker';
245 - return $whitelist;
246 -});
247 -
248 -// Exclude CSS from CCSS (Critical CSS) generation
249 -add_filter('litespeed_optm_ccss_exc', function($excluded) {
250 - if (!is_array($excluded)) $excluded = array();
251 - $excluded[] = 'chat-style.css';
252 - $excluded[] = 'mxchat';
253 - return $excluded;
254 -});
255 -
256 115 // Exclude JS from defer
257 116 add_filter('litespeed_optm_js_defer_exc', function($excluded) {
258 117 if (!is_array($excluded)) $excluded = array();
259 118 $excluded[] = 'chat-script.js';
260 119 $excluded[] = 'floating-script.js';
261 - $excluded[] = 'mxchat';
262 120 $excluded[] = 'jquery.min.js';
263 121 $excluded[] = 'jquery.js';
264 122 return $excluded;
265 123 });
@@ -268,33 +126,13 @@
268 126 add_filter('litespeed_optm_js_exc', function($excluded) {
269 127 if (!is_array($excluded)) $excluded = array();
270 128 $excluded[] = 'chat-script.js';
271 129 $excluded[] = 'floating-script.js';
272 - $excluded[] = 'mxchat';
273 130 $excluded[] = 'jquery.min.js';
274 131 $excluded[] = 'jquery.js';
275 132 return $excluded;
276 133 });
277 134
278 -// Exclude JS from delayed execution
279 -add_filter('litespeed_optm_js_delay_exc', function($excluded) {
280 - if (!is_array($excluded)) $excluded = array();
281 - $excluded[] = 'chat-script.js';
282 - $excluded[] = 'floating-script.js';
283 - $excluded[] = 'mxchat';
284 - return $excluded;
285 -});
286 -
287 -// Exclude from Guest Mode optimization
288 -add_filter('litespeed_guest_optm_exc', function($excluded) {
289 - if (!is_array($excluded)) $excluded = array();
290 - $excluded[] = 'mxchat';
291 - $excluded[] = 'chat-style';
292 - $excluded[] = 'chat-script';
293 - $excluded[] = 'floating-script';
294 - return $excluded;
295 -});
296 -
297 135 // ── Autoptimize ──────────────────────────────────────────────────────────────
298 136
299 137 // Exclude CSS from optimization (comma-separated strings)
300 138 add_filter('autoptimize_filter_css_exclude', function($excluded) {
@@ -353,80 +191,21 @@
353 191 $rejected[] = 'wp-admin/admin-ajax.php';
354 192 return $rejected;
355 193 });
356 194
357 -// ── Page-cache bypass for chat AJAX (companion to the 3.2.6 nonce-race hotfix)
358 -// Each cache plugin gets its own filter export so that visitors hitting an
359 -// edge-cached page never receive cached chat-AJAX responses. The chat send /
360 -// stream send / file upload all POST to /wp-admin/admin-ajax.php with
361 -// `action=mxchat_*`. Without these exports, a cache plugin can stale a response
362 -// and break the per-session nonce flow on the first message.
363 -
364 -// WP Rocket — `rocket_cache_reject_uri` takes a flat array of regex strings.
365 -add_filter('rocket_cache_reject_uri', function($uris) {
366 - if (!is_array($uris)) $uris = array();
367 - $uris[] = '/wp-admin/admin-ajax\.php\?action=mxchat_.*';
368 - return $uris;
369 -});
370 -
371 -// LiteSpeed Cache — `litespeed_cache_no_cache_for_request` short-circuits
372 -// caching when the request matches our chat-AJAX pattern.
373 -add_filter('litespeed_cache_no_cache_for_request', function($no_cache) {
374 - if ($no_cache) return $no_cache;
375 - if (!empty($_SERVER['REQUEST_URI']) &&
376 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
377 - !empty($_REQUEST['action']) &&
378 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
379 - return true;
380 - }
381 - return $no_cache;
382 -});
383 -
384 -// W3 Total Cache — `w3tc_pgcache_request_skip_uri` flips page-cache off when
385 -// the URI matches.
386 -add_filter('w3tc_pgcache_request_skip_uri', function($skip) {
387 - if ($skip) return $skip;
388 - if (!empty($_SERVER['REQUEST_URI']) &&
389 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
390 - !empty($_REQUEST['action']) &&
391 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
392 - return true;
393 - }
394 - return $skip;
395 -});
396 -
397 -// FlyingPress — `flying_press_cacheable` takes a boolean and is run per
398 -// request. Same pattern as LiteSpeed / W3TC.
399 -add_filter('flying_press_cacheable', function($cacheable) {
400 - if (!$cacheable) return $cacheable;
401 - if (!empty($_SERVER['REQUEST_URI']) &&
402 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
403 - !empty($_REQUEST['action']) &&
404 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
405 - return false;
406 - }
407 - return $cacheable;
408 -});
409 -
410 195 // Include classes with error handling
411 196 function mxchat_include_classes() {
412 197 $class_files = array(
413 - 'includes/class-mxchat-model-catalog.php',
414 - 'includes/class-mxchat-live-agent-schedule.php',
415 - 'includes/class-mxchat-tool-registry.php',
416 198 'includes/class-mxchat-integrator.php',
417 199 'includes/class-mxchat-admin.php',
418 200 'includes/class-mxchat-public.php',
419 201 'includes/class-mxchat-utils.php',
420 202 'includes/class-mxchat-user.php',
421 - 'includes/class-mxchat-privacy.php',
422 203 'includes/class-mxchat-meta-box.php',
423 204 'includes/class-mxchat-chunker.php',
205 + 'includes/pdf-parser/alt_autoload.php',
424 206 'includes/class-mxchat-word-handler.php',
425 207 'includes/class-mxchat-content-generator.php',
426 - 'includes/class-mxchat-cache-purge.php',
427 - 'includes/class-mxchat-editor-assistant.php',
428 - 'includes/class-rest-api.php',
429 208 'admin/class-ajax-handler.php',
430 209 'admin/class-pinecone-manager.php',
431 210 'admin/class-knowledge-manager.php'
432 211 );
@@ -438,62 +217,11 @@
438 217 } else {
439 218 //error_log('MxChat: Missing class file - ' . $file);
440 219 }
441 220 }
442 -
443 - // Register the native function-calling admin-post save handler (a41dee).
444 - if (class_exists('MxChat_Tool_Registry')) {
445 - MxChat_Tool_Registry::init();
446 - }
447 -
448 - // GDPR: register with WP's personal-data export/erase tools (b81e42).
449 - if (class_exists('MxChat_Privacy')) {
450 - MxChat_Privacy::init();
451 - }
452 -
453 - // Editor Assistant — free, OFF-by-default block-editor AI actions (plan-8cb0cb).
454 - // init() wires REST + streaming AJAX + sidebar enqueue ONLY when the
455 - // mxchat_editor_assistant_enabled option is 'on'; otherwise zero footprint.
456 - if (class_exists('MxChat_Editor_Assistant')) {
457 - MxChat_Editor_Assistant::init();
458 - }
459 -
460 - // Admin pages that aren't classes (procedural include).
461 - if (is_admin()) {
462 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
463 - if (file_exists($admin_api_page)) {
464 - require_once $admin_api_page;
465 - }
466 - // f7c7d4 renamed this file admin-dashboard-page.php → admin-onboarding-page.php.
467 - // The require MUST live here (admin bootstrap) and not just inside
468 - // mxchat_add_plugin_page() on the admin_menu hook — admin_menu does NOT
469 - // fire on admin-ajax.php requests, so the wizard's AJAX handlers
470 - // (plan-905439: mxchat_onboarding_kb_status / save_step / mark_step /
471 - // auto_graduate + the f7c7d4 dismiss handler) would never register.
472 - $admin_onboarding_page = plugin_dir_path(__FILE__) . 'includes/admin-onboarding-page.php';
473 - if (file_exists($admin_onboarding_page)) {
474 - require_once $admin_onboarding_page;
475 - }
476 - }
477 221 }
478 222
479 223 /**
480 - * Lazy-load the PDF parser library only when needed.
481 - * Avoids loading 44 files on every page request.
482 - */
483 -function mxchat_load_pdf_parser() {
484 - if (class_exists('\Smalot\PdfParser\Parser')) {
485 - return true;
486 - }
487 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
488 - if (file_exists($autoload_path)) {
489 - require_once $autoload_path;
490 - return true;
491 - }
492 - return false;
493 -}
494 -
495 -/**
496 224 * Create URL click tracking table
497 225 */
498 226 function mxchat_create_url_clicks_table() {
499 227 global $wpdb;
@@ -761,9 +489,9 @@
761 489
762 490 // Add index for bot_id
763 491 $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
764 492
765 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
493 + error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
766 494 }
767 495
768 496 // Mark migration as complete
769 497 update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
@@ -798,9 +526,9 @@
798 526
799 527 // Add index for better query performance
800 528 $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
801 529
802 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
530 + error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
803 531 }
804 532
805 533 // Mark migration as complete
806 534 update_option('mxchat_content_type_migration_version', '2.5.6');
@@ -806,33 +534,8 @@
806 534 update_option('mxchat_content_type_migration_version', '2.5.6');
807 535 }
808 536
809 537 /**
810 - * 3.2.4: Backfill the active embedding model option for installs that already
811 - * have KB content but no stamped model. The mismatch warning compares this
812 - * against the user's currently selected model — no per-row column needed.
813 - */
814 -function mxchat_backfill_active_embedding_model() {
815 - global $wpdb;
816 -
817 - if (get_option('mxchat_active_embedding_model', '') !== '') {
818 - return;
819 - }
820 -
821 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
822 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
823 - return;
824 - }
825 -
826 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
827 - if ($kb_count > 0) {
828 - $options = get_option('mxchat_options', array());
829 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
830 - update_option('mxchat_active_embedding_model', $current_model, false);
831 - }
832 -}
833 -
834 -/**
835 538 * 2.5.2: Create queue processing tables for reliable background processing
836 539 */
837 540 function mxchat_create_queue_tables() {
838 541 global $wpdb;
@@ -904,34 +607,8 @@
904 607 dbDelta($sql);
905 608 }
906 609
907 610 /**
908 - * Create per-session satisfaction ratings table (v3.2.6)
909 - * Stores one 👍/👎 rating + optional feedback per chat session.
910 - */
911 -function mxchat_create_session_ratings_table() {
912 - global $wpdb;
913 - $charset_collate = $wpdb->get_charset_collate();
914 -
915 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
916 - $sql = "CREATE TABLE $table_name (
917 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
918 - session_id varchar(255) NOT NULL,
919 - bot_id varchar(50) NOT NULL DEFAULT 'default',
920 - rating_value tinyint(1) NOT NULL,
921 - rating_feedback text DEFAULT NULL,
922 - created_at datetime NOT NULL,
923 - PRIMARY KEY (id),
924 - UNIQUE KEY session_id (session_id),
925 - KEY bot_id (bot_id),
926 - KEY created_at (created_at)
927 - ) $charset_collate;";
928 -
929 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
930 - dbDelta($sql);
931 -}
932 -
933 -/**
934 611 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
935 612 * This fixes "url, source_url. The supplied values may be too long" errors
936 613 */
937 614 function mxchat_fix_url_column_size() {
@@ -954,18 +631,8 @@
954 631
955 632 /**
956 633 * Migrate deprecated AI models to their replacements
957 634 * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
958 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
959 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
960 - */
961 -function mxchat_migrate_transcripts_charset() {
962 - global $wpdb;
963 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
964 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
965 -}
966 -
967 -/**
968 635 * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
969 636 */
970 637 function mxchat_migrate_deprecated_models() {
971 638 $options = get_option('mxchat_options', array());
@@ -990,9 +657,9 @@
990 657 if (in_array($current_model, $deprecated_claude_models, true)) {
991 658 $options['model'] = 'claude-opus-4-6';
992 659 $migrated = true;
993 660 $migration_message = sprintf(
994 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
661 + __('Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.', 'mxchat'),
995 662 $current_model
996 663 );
997 664 }
998 665
@@ -999,69 +666,31 @@
999 666 // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
1000 667 if ($current_model === 'claude-3-5-haiku-20241022') {
1001 668 $options['model'] = 'claude-haiku-4-5-20251001';
1002 669 $migrated = true;
1003 - $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.';
670 + $migration_message = __('Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.', 'mxchat');
1004 671 }
1005 672
1006 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.6 Sol.
1007 - // (Previous target gpt-5.1-chat-latest itself retires 2026-08-10 — never
1008 - // migrate onto a model that is already on a deprecation list.)
673 + // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest
1009 674 if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
1010 - $options['model'] = 'gpt-5.6-sol';
675 + $options['model'] = 'gpt-5.1-chat-latest';
1011 676 $migrated = true;
1012 677 $migration_message = sprintf(
1013 - 'Your chatbot model has been automatically updated from %s to GPT-5.6 Sol due to OpenAI deprecating older models.',
678 + __('Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.', 'mxchat'),
1014 679 $current_model
1015 680 );
1016 681 }
1017 682
1018 - // Migrate the gpt-5.x-chat-latest aliases OpenAI retires on August 10, 2026.
1019 - // Replacement per OpenAI's deprecations page: gpt-5.6-sol (plan e46b8f).
1020 - if (in_array($current_model, array('gpt-5.1-chat-latest', 'gpt-5.3-chat-latest'), true)) {
1021 - $options['model'] = 'gpt-5.6-sol';
1022 - $migrated = true;
1023 - $migration_message = sprintf(
1024 - 'Your chatbot model has been automatically updated from %s to GPT-5.6 Sol because OpenAI retires the GPT-5.x Chat Latest models on August 10, 2026.',
1025 - $current_model
1026 - );
1027 - }
1028 -
1029 - // The content generator has its own model option — same retirement applies.
1030 - if (isset($options['content_model'])
1031 - && in_array($options['content_model'], array('gpt-5.1-chat-latest', 'gpt-5.3-chat-latest'), true)) {
1032 - $old_content_model = $options['content_model'];
1033 - $options['content_model'] = 'gpt-5.6-sol';
1034 - $migrated = true;
1035 - $migration_message = trim($migration_message . ' ' . sprintf(
1036 - 'Your content generation model has also been updated from %s to GPT-5.6 Sol for the same OpenAI retirement.',
1037 - $old_content_model
1038 - ));
1039 - }
1040 -
1041 683 // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
1042 684 if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
1043 685 $options['model'] = 'gpt-5-mini';
1044 686 $migrated = true;
1045 687 $migration_message = sprintf(
1046 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
688 + __('Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.', 'mxchat'),
1047 689 $current_model
1048 690 );
1049 691 }
1050 692
1051 - // Migrate retired DeepSeek ids to DeepSeek V4 Flash — the vendor removed
1052 - // deepseek-chat and deepseek-reasoner on 2026-07-24 (hard cutoff, every
1053 - // request 400s). V4 Flash is DeepSeek's designated successor for the
1054 - // legacy deepseek-chat alias.
1055 - if (in_array($current_model, array('deepseek-chat', 'deepseek-reasoner'), true)) {
1056 - $options['model'] = 'deepseek-v4-flash';
1057 - $migrated = true;
1058 - $migration_message = sprintf(
1059 - 'Your chatbot model has been automatically updated from %s to DeepSeek V4 Flash because DeepSeek retired its older API models on July 24, 2026.',
1060 - $current_model
1061 - );
1062 - }
1063 -
1064 693 if ($migrated) {
1065 694 update_option('mxchat_options', $options);
1066 695 update_option('mxchat_model_migrated_notice', true);
1067 696 update_option('mxchat_model_migration_message', $migration_message);
@@ -1086,46 +715,8 @@
1086 715 delete_option('mxchat_model_migration_message');
1087 716 }
1088 717 }
1089 718
1090 -/**
1091 - * Persistent admin notice when the provider rejected the configured model
1092 - * (model_not_found / no access). Set by mxchat_friendly_chat_error() in the
1093 - * integrator whenever a chat request fails on a model-access error — including
1094 - * requests from anonymous visitors, which is the case that otherwise stays
1095 - * invisible to the site owner for weeks (plan e46b8f).
1096 - *
1097 - * Deleted after render so it re-arms on the next failed chat: the notice keeps
1098 - * reappearing until the model is fixed, then stops on its own.
1099 - */
1100 -function mxchat_show_model_access_notice() {
1101 - if (!current_user_can('manage_options')) {
1102 - return;
1103 - }
1104 - $notice = get_option('mxchat_model_access_notice');
1105 - if (!is_array($notice) || empty($notice['model'])) {
1106 - return;
1107 - }
1108 - $settings_url = admin_url('admin.php?page=mxchat-max');
1109 - ?>
1110 - <div class="notice notice-error is-dismissible">
1111 - <p>
1112 - <strong><?php esc_html_e('MxChat: your AI model is being rejected by the provider', 'mxchat'); ?></strong><br>
1113 - <?php
1114 - printf(
1115 - /* translators: 1: model id, 2: provider name */
1116 - esc_html__('Chat requests using the model "%1$s" are failing because %2$s reports it as unavailable on your API key (it may have been retired). Visitors may be seeing errors instead of replies.', 'mxchat'),
1117 - esc_html($notice['model']),
1118 - esc_html(!empty($notice['provider']) ? $notice['provider'] : __('the AI provider', 'mxchat'))
1119 - );
1120 - ?>
1121 - <a href="<?php echo esc_url($settings_url); ?>"><?php esc_html_e('Choose a different model in MxChat Settings', 'mxchat'); ?></a>
1122 - </p>
1123 - </div>
1124 - <?php
1125 - delete_option('mxchat_model_access_notice');
1126 -}
1127 -
1128 719 function mxchat_activate() {
1129 720 global $wpdb;
1130 721 $charset_collate = $wpdb->get_charset_collate();
1131 722
@@ -1162,26 +753,13 @@
1162 753 enabled_bots LONGTEXT DEFAULT NULL,
1163 754 PRIMARY KEY (id)
1164 755 ) $charset_collate;";
1165 756
1166 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
1167 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
1168 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
1169 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1170 - intent_id BIGINT(20) UNSIGNED NOT NULL,
1171 - phrase TEXT NOT NULL,
1172 - embedding_vector LONGTEXT NOT NULL,
1173 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1174 - PRIMARY KEY (id),
1175 - KEY intent_id (intent_id)
1176 - ) $charset_collate;";
1177 -
1178 757 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1179 758
1180 759 // Create other tables
1181 760 dbDelta($sql_system_prompt);
1182 761 dbDelta($sql_intents_table);
1183 - dbDelta($sql_intent_phrases_table);
1184 762
1185 763 // Create URL click tracking table
1186 764 mxchat_create_url_clicks_table();
1187 765
@@ -1193,11 +771,8 @@
1193 771
1194 772 // Create transcript translations table
1195 773 mxchat_create_translations_table();
1196 774
1197 - // Create per-session satisfaction ratings table (v3.2.6)
1198 - mxchat_create_session_ratings_table();
1199 -
1200 775 // Ensure additional columns in system prompt table
1201 776 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1202 777 if (!empty($existing_system_columns)) {
1203 778 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1240,17 +815,13 @@
1240 815
1241 816 // Run migration for existing installations
1242 817 mxchat_migrate_pinecone_roles_add_bot_id();
1243 818
1244 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1245 - mxchat_backfill_active_embedding_model();
1246 -
1247 819 // Setup cron jobs
1248 820 mxchat_setup_cron_jobs();
1249 821
1250 - // Update version (stable base version — never the dev time()-suffixed one,
1251 - // or the check_for_update comparison would churn every request)
1252 - update_option('mxchat_plugin_version', MXCHAT_BASE_VERSION);
822 + // Update version
823 + update_option('mxchat_plugin_version', MXCHAT_VERSION);
1253 824
1254 825 //error_log("MxChat: Activation function completed");
1255 826 }
1256 827
@@ -1265,35 +836,28 @@
1265 836 if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
1266 837 // Set flag to use fallback system
1267 838 update_option('mxchat_use_fallback_rate_limits', true);
1268 839 update_option('mxchat_next_rate_limit_check', time() + 3600);
1269 - // Deliberately NO early return (plan-bc08a6): transcript cleanup below
1270 - // must still be scheduled. DISABLE_WP_CRON only changes HOW cron events
1271 - // execute (a server-side runner hitting wp-cron.php instead of loopback
1272 - // spawns) — scheduling still just writes the cron option. The old early
1273 - // return here meant a deactivate/reactivate cycle on a DISABLE_WP_CRON
1274 - // site permanently lost the transcript cleanup event while the retention
1275 - // setting still claimed to be active.
840 + return;
841 + }
842 +
843 + // Schedule the rate limit reset cron job
844 + $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
845 +
846 + if ($result === false) {
847 + // Fallback if scheduling fails
848 + update_option('mxchat_use_fallback_rate_limits', true);
849 + update_option('mxchat_next_rate_limit_check', time() + 3600);
1276 850 } else {
1277 - // Schedule the rate limit reset cron job
1278 - $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
1279 -
1280 - if ($result === false) {
1281 - // Fallback if scheduling fails
1282 - update_option('mxchat_use_fallback_rate_limits', true);
1283 - update_option('mxchat_next_rate_limit_check', time() + 3600);
1284 - } else {
1285 - // Clear fallback flags if cron scheduling succeeded
1286 - delete_option('mxchat_use_fallback_rate_limits');
1287 - }
851 + // Clear fallback flags if cron scheduling succeeded
852 + delete_option('mxchat_use_fallback_rate_limits');
1288 853 }
1289 -
1290 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
854 +
855 + // Schedule transcript cleanup if configured
1291 856 $transcript_options = get_option('mxchat_transcripts_options', array());
1292 857 $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1293 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1294 -
1295 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
858 +
859 + if ($cleanup_interval !== 'never') {
1296 860 // Check if not already scheduled
1297 861 if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1298 862 // Schedule to run daily at 3 AM
1299 863 $next_run = strtotime('tomorrow 3:00 AM');
@@ -1330,25 +894,17 @@
1330 894 return;
1331 895 }
1332 896
1333 897 $next_check = get_option('mxchat_next_rate_limit_check', 0);
1334 -
898 +
1335 899 if (time() >= $next_check) {
1336 - // Reuse the bootstrap's integrator — mxchat_init() creates the global on
1337 - // plugins_loaded (before this init-priority-5 callback), so it's always set
1338 - // here. Constructing a second MxChat_Integrator just to call one method
1339 - // re-registers every hook the plugin has (ajax pairs, wp_footer loader,
1340 - // rest_api_init, admin_init guard) on a duplicate instance for the rest of
1341 - // the request. Defensive construction only if the global is somehow unset.
1342 - // NOTE: MxChat_Integrator::check_fallback_rate_limits() is a second
1343 - // implementation of this same check — if either changes, change both.
1344 - global $mxchat_integrator;
1345 - $integrator = ($mxchat_integrator instanceof MxChat_Integrator)
1346 - ? $mxchat_integrator
1347 - : (class_exists('MxChat_Integrator') ? new MxChat_Integrator() : null);
1348 - if ($integrator && method_exists($integrator, 'mxchat_reset_rate_limits')) {
1349 - $integrator->mxchat_reset_rate_limits();
1350 - update_option('mxchat_next_rate_limit_check', time() + 3600);
900 + // Only run reset if the MxChat_Integrator class exists
901 + if (class_exists('MxChat_Integrator')) {
902 + $integrator = new MxChat_Integrator();
903 + if (method_exists($integrator, 'mxchat_reset_rate_limits')) {
904 + $integrator->mxchat_reset_rate_limits();
905 + update_option('mxchat_next_rate_limit_check', time() + 3600);
906 + }
1351 907 }
1352 908 }
1353 909 }
1354 910
@@ -1360,9 +916,9 @@
1360 916 global $wpdb;
1361 917
1362 918 try {
1363 919 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1364 - $plugin_version = MXCHAT_BASE_VERSION;
920 + $plugin_version = MXCHAT_VERSION;
1365 921
1366 922 // Always ensure critical tables exist (even if version matches)
1367 923 // This handles manual table deletion or fresh installs
1368 924 $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
@@ -1424,39 +980,8 @@
1424 980 if (version_compare($current_version, '3.0.6', '<')) {
1425 981 mxchat_migrate_deprecated_models();
1426 982 }
1427 983
1428 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1429 - if (version_compare($current_version, '3.1.2', '<')) {
1430 - mxchat_migrate_transcripts_charset();
1431 - }
1432 -
1433 - // 3.1.7: Clean up stale shared session email/name entries
1434 - if (version_compare($current_version, '3.1.7', '<')) {
1435 - delete_option('mxchat_email_null');
1436 - delete_option('mxchat_name_null');
1437 - }
1438 -
1439 - // 3.2.4: Backfill active embedding model option for the warning UI
1440 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1441 - if (version_compare($current_version, '3.2.4', '<')) {
1442 - mxchat_backfill_active_embedding_model();
1443 - }
1444 -
1445 - // 3.2.15: Migrate retired DeepSeek ids (deepseek-chat / deepseek-reasoner
1446 - // were shut off at the vendor on 2026-07-24). The function is idempotent —
1447 - // it only rewrites models on its deprecation lists.
1448 - if (version_compare($current_version, '3.2.15', '<')) {
1449 - mxchat_migrate_deprecated_models();
1450 - }
1451 -
1452 - // 3.2.16: Migrate OpenAI ids retiring 2026-08-10 (gpt-5.1-chat-latest /
1453 - // gpt-5.3-chat-latest → gpt-5.6-sol per OpenAI's deprecations page).
1454 - // Idempotent — only rewrites models on the deprecation lists (e46b8f).
1455 - if (version_compare($current_version, '3.2.16', '<')) {
1456 - mxchat_migrate_deprecated_models();
1457 - }
1458 -
1459 984 // Run full activation to ensure everything is up to date
1460 985 mxchat_activate();
1461 986
1462 987 // Run migration functions
@@ -1627,9 +1152,9 @@
1627 1152 // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1628 1153 if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1629 1154 // Check if Pro is activated - only show to Pro users
1630 1155 $license_status = get_option('mxchat_license_status', 'inactive');
1631 - $is_pro = ($license_status === 'active');
1156 + $is_pro = ($license_status === 'active' || $license_status === esc_html__('active', 'mxchat'));
1632 1157
1633 1158 if ($is_pro) {
1634 1159 // Set flag to show the theme migration notification banner
1635 1160 update_option('mxchat_show_theme_migration_notice', true);
@@ -1655,9 +1180,8 @@
1655 1180 add_action('init', 'mxchat_check_fallback_rate_limits', 5);
1656 1181
1657 1182 // Add migration notice hook
1658 1183 add_action('admin_notices', 'mxchat_show_migration_notice');
1659 - add_action('admin_notices', 'mxchat_show_model_access_notice');
1660 1184
1661 1185 // Initialize classes with error handling
1662 1186 try {
1663 1187 // Initialize admin classes
@@ -1682,23 +1206,8 @@
1682 1206 if (class_exists('MxChat_Content_Generator')) {
1683 1207 new MxChat_Content_Generator();
1684 1208 }
1685 1209
1686 - // Initialize cache purge globally — settings writes can happen on any
1687 - // request type (admin screens, admin-ajax autosave, wp-cli), and the
1688 - // deferred-purge cron event fires on front-end requests.
1689 - if (class_exists('MxChat_Cache_Purge')) {
1690 - MxChat_Cache_Purge::init();
1691 - }
1692 -
1693 - // Initialize REST API globally — endpoints must be registered on
1694 - // every request (admin and frontend) so they're reachable via /wp-json/.
1695 - // Endpoints are auth-gated and locked until the site owner generates
1696 - // a token in MxChat → API Access.
1697 - if (class_exists('MxChat_Rest_Api')) {
1698 - new MxChat_Rest_Api();
1699 - }
1700 -
1701 1210 // Initialize public classes
1702 1211 if (class_exists('MxChat_Public')) {
1703 1212 $mxchat_public = new MxChat_Public();
1704 1213 }
@@ -1743,25 +1252,11 @@
1743 1252
1744 1253 mxchat_migrate_pinecone_roles_add_bot_id();
1745 1254 mxchat_migrate_add_content_type_column();
1746 1255 mxchat_migrate_add_translations_table();
1747 - mxchat_migrate_add_session_ratings_table();
1748 1256 }
1749 1257
1750 1258 /**
1751 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1752 - * For users upgrading from versions before 3.2.6
1753 - */
1754 -function mxchat_migrate_add_session_ratings_table() {
1755 - $migration_key = 'mxchat_session_ratings_table_created';
1756 - if (get_option($migration_key)) {
1757 - return;
1758 - }
1759 - mxchat_create_session_ratings_table();
1760 - update_option($migration_key, '3.2.6');
1761 -}
1762 -
1763 -/**
1764 1259 * Migration: Create transcript translations table (v3.0.4)
1765 1260 * For users upgrading from versions before 3.0.4
1766 1261 */
1767 1262 function mxchat_migrate_add_translations_table() {
@@ -1804,67 +1299,5 @@
1804 1299 return $schedules;
1805 1300 });
1806 1301
1807 1302 // Register deactivation hook
1808 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1809 -
1810 -/**
1811 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1812 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1813 - * session_id makes this naturally idempotent — only the first rating per
1814 - * session is stored; duplicate POSTs are silent no-ops.
1815 - */
1816 -function mxchat_save_session_rating() {
1817 - global $wpdb;
1818 -
1819 - $session_id = isset($_POST['session_id']) ? MxChat_Utils::sanitize_session_id(wp_unslash($_POST['session_id'])) : '';
1820 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1821 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1822 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1823 -
1824 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1825 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1826 - }
1827 -
1828 - if (strlen($feedback) > 1000) {
1829 - $feedback = substr($feedback, 0, 1000);
1830 - }
1831 -
1832 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1833 - $existing = $wpdb->get_var($wpdb->prepare(
1834 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1835 - $session_id
1836 - ));
1837 -
1838 - if ($existing) {
1839 - if ($feedback !== '') {
1840 - $wpdb->update(
1841 - $table_name,
1842 - array('rating_feedback' => $feedback),
1843 - array('id' => (int) $existing),
1844 - array('%s'),
1845 - array('%d')
1846 - );
1847 - }
1848 - wp_send_json_success(array('updated' => true));
1849 - }
1850 -
1851 - $inserted = $wpdb->insert(
1852 - $table_name,
1853 - array(
1854 - 'session_id' => $session_id,
1855 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1856 - 'rating_value' => $rating_raw,
1857 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1858 - 'created_at' => current_time('mysql'),
1859 - ),
1860 - array('%s', '%s', '%d', '%s', '%s')
1861 - );
1862 -
1863 - if ($inserted === false) {
1864 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1865 - }
1866 -
1867 - wp_send_json_success(array('saved' => true));
1868 -}
1869 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1870 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
1303 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');