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MxChat – AI Chatbot & Content Generation for WordPress / 3.1.1
MxChat – AI Chatbot & Content Generation for WordPress v3.1.1
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 +41 -541 3.2.163.1.1 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: 3.2.16
6 + * Version: 3.1.1
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
@@ -15,49 +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
@@ -353,80 +243,20 @@
353 243 $rejected[] = 'wp-admin/admin-ajax.php';
354 244 return $rejected;
355 245 });
356 246
357 -// ── Page-cache bypass for chat AJAX (companion to the 3.2.6 nonce-race hotfix)
358 -// Each cache plugin gets its own filter export so that visitors hitting an
359 -// edge-cached page never receive cached chat-AJAX responses. The chat send /
360 -// stream send / file upload all POST to /wp-admin/admin-ajax.php with
361 -// `action=mxchat_*`. Without these exports, a cache plugin can stale a response
362 -// and break the per-session nonce flow on the first message.
363 -
364 -// WP Rocket — `rocket_cache_reject_uri` takes a flat array of regex strings.
365 -add_filter('rocket_cache_reject_uri', function($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 -
410 247 // Include classes with error handling
411 248 function mxchat_include_classes() {
412 249 $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',
416 250 'includes/class-mxchat-integrator.php',
417 251 'includes/class-mxchat-admin.php',
418 252 'includes/class-mxchat-public.php',
419 253 'includes/class-mxchat-utils.php',
420 254 'includes/class-mxchat-user.php',
421 - 'includes/class-mxchat-privacy.php',
422 255 'includes/class-mxchat-meta-box.php',
423 256 'includes/class-mxchat-chunker.php',
424 257 'includes/class-mxchat-word-handler.php',
425 258 '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',
429 259 'admin/class-ajax-handler.php',
430 260 'admin/class-pinecone-manager.php',
431 261 'admin/class-knowledge-manager.php'
432 262 );
@@ -438,43 +268,8 @@
438 268 } else {
439 269 //error_log('MxChat: Missing class file - ' . $file);
440 270 }
441 271 }
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 - }
477 272 }
478 273
479 274 /**
480 275 * Lazy-load the PDF parser library only when needed.
@@ -761,9 +556,9 @@
761 556
762 557 // Add index for bot_id
763 558 $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
764 559
765 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
560 + error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
766 561 }
767 562
768 563 // Mark migration as complete
769 564 update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
@@ -798,9 +593,9 @@
798 593
799 594 // Add index for better query performance
800 595 $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
801 596
802 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
597 + error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
803 598 }
804 599
805 600 // Mark migration as complete
806 601 update_option('mxchat_content_type_migration_version', '2.5.6');
@@ -806,33 +601,8 @@
806 601 update_option('mxchat_content_type_migration_version', '2.5.6');
807 602 }
808 603
809 604 /**
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 -/**
835 605 * 2.5.2: Create queue processing tables for reliable background processing
836 606 */
837 607 function mxchat_create_queue_tables() {
838 608 global $wpdb;
@@ -904,34 +674,8 @@
904 674 dbDelta($sql);
905 675 }
906 676
907 677 /**
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 -/**
934 678 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
935 679 * This fixes "url, source_url. The supplied values may be too long" errors
936 680 */
937 681 function mxchat_fix_url_column_size() {
@@ -954,18 +698,8 @@
954 698
955 699 /**
956 700 * Migrate deprecated AI models to their replacements
957 701 * 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 -/**
968 702 * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
969 703 */
970 704 function mxchat_migrate_deprecated_models() {
971 705 $options = get_option('mxchat_options', array());
@@ -990,9 +724,9 @@
990 724 if (in_array($current_model, $deprecated_claude_models, true)) {
991 725 $options['model'] = 'claude-opus-4-6';
992 726 $migrated = true;
993 727 $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.',
728 + __('Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.', 'mxchat'),
995 729 $current_model
996 730 );
997 731 }
998 732
@@ -999,69 +733,31 @@
999 733 // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
1000 734 if ($current_model === 'claude-3-5-haiku-20241022') {
1001 735 $options['model'] = 'claude-haiku-4-5-20251001';
1002 736 $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.';
737 + $migration_message = __('Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.', 'mxchat');
1004 738 }
1005 739
1006 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.6 Sol.
1007 - // (Previous target gpt-5.1-chat-latest itself retires 2026-08-10 — never
1008 - // migrate onto a model that is already on a deprecation list.)
740 + // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest
1009 741 if (in_array($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';
742 + $options['model'] = 'gpt-5.1-chat-latest';
1011 743 $migrated = true;
1012 744 $migration_message = sprintf(
1013 - 'Your chatbot model has been automatically updated from %s to GPT-5.6 Sol due to OpenAI deprecating older models.',
745 + __('Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.', 'mxchat'),
1014 746 $current_model
1015 747 );
1016 748 }
1017 749
1018 - // Migrate the gpt-5.x-chat-latest aliases OpenAI retires on August 10, 2026.
1019 - // Replacement per OpenAI's deprecations page: gpt-5.6-sol (plan e46b8f).
1020 - if (in_array($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 - $old_content_model
1038 - ));
1039 - }
1040 -
1041 750 // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
1042 751 if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
1043 752 $options['model'] = 'gpt-5-mini';
1044 753 $migrated = true;
1045 754 $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.',
755 + __('Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.', 'mxchat'),
1047 756 $current_model
1048 757 );
1049 758 }
1050 759
1051 - // Migrate retired DeepSeek ids to DeepSeek V4 Flash — the vendor removed
1052 - // deepseek-chat and deepseek-reasoner on 2026-07-24 (hard cutoff, every
1053 - // request 400s). V4 Flash is DeepSeek's designated successor for the
1054 - // legacy deepseek-chat alias.
1055 - if (in_array($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 - $current_model
1061 - );
1062 - }
1063 -
1064 760 if ($migrated) {
1065 761 update_option('mxchat_options', $options);
1066 762 update_option('mxchat_model_migrated_notice', true);
1067 763 update_option('mxchat_model_migration_message', $migration_message);
@@ -1086,46 +782,8 @@
1086 782 delete_option('mxchat_model_migration_message');
1087 783 }
1088 784 }
1089 785
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 786 function mxchat_activate() {
1129 787 global $wpdb;
1130 788 $charset_collate = $wpdb->get_charset_collate();
1131 789
@@ -1162,26 +820,13 @@
1162 820 enabled_bots LONGTEXT DEFAULT NULL,
1163 821 PRIMARY KEY (id)
1164 822 ) $charset_collate;";
1165 823
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 - ) $charset_collate;";
1177 -
1178 824 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1179 825
1180 826 // Create other tables
1181 827 dbDelta($sql_system_prompt);
1182 828 dbDelta($sql_intents_table);
1183 - dbDelta($sql_intent_phrases_table);
1184 829
1185 830 // Create URL click tracking table
1186 831 mxchat_create_url_clicks_table();
1187 832
@@ -1193,11 +838,8 @@
1193 838
1194 839 // Create transcript translations table
1195 840 mxchat_create_translations_table();
1196 841
1197 - // Create per-session satisfaction ratings table (v3.2.6)
1198 - mxchat_create_session_ratings_table();
1199 -
1200 842 // Ensure additional columns in system prompt table
1201 843 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1202 844 if (!empty($existing_system_columns)) {
1203 845 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1240,17 +882,13 @@
1240 882
1241 883 // Run migration for existing installations
1242 884 mxchat_migrate_pinecone_roles_add_bot_id();
1243 885
1244 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1245 - mxchat_backfill_active_embedding_model();
1246 -
1247 886 // Setup cron jobs
1248 887 mxchat_setup_cron_jobs();
1249 888
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);
889 + // Update version
890 + update_option('mxchat_plugin_version', MXCHAT_VERSION);
1253 891
1254 892 //error_log("MxChat: Activation function completed");
1255 893 }
1256 894
@@ -1265,35 +903,28 @@
1265 903 if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
1266 904 // Set flag to use fallback system
1267 905 update_option('mxchat_use_fallback_rate_limits', true);
1268 906 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.
907 + return;
908 + }
909 +
910 + // Schedule the rate limit reset cron job
911 + $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
912 +
913 + if ($result === false) {
914 + // Fallback if scheduling fails
915 + update_option('mxchat_use_fallback_rate_limits', true);
916 + update_option('mxchat_next_rate_limit_check', time() + 3600);
1276 917 } 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 - }
918 + // Clear fallback flags if cron scheduling succeeded
919 + delete_option('mxchat_use_fallback_rate_limits');
1288 920 }
1289 -
1290 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
921 +
922 + // Schedule transcript cleanup if configured
1291 923 $transcript_options = get_option('mxchat_transcripts_options', array());
1292 924 $cleanup_interval = isset($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' || $custom_retention > 0) {
925 +
926 + if ($cleanup_interval !== 'never') {
1296 927 // Check if not already scheduled
1297 928 if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1298 929 // Schedule to run daily at 3 AM
1299 930 $next_run = strtotime('tomorrow 3:00 AM');
@@ -1330,25 +961,17 @@
1330 961 return;
1331 962 }
1332 963
1333 964 $next_check = get_option('mxchat_next_rate_limit_check', 0);
1334 -
965 +
1335 966 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);
967 + // Only run reset if the MxChat_Integrator class exists
968 + if (class_exists('MxChat_Integrator')) {
969 + $integrator = new MxChat_Integrator();
970 + if (method_exists($integrator, 'mxchat_reset_rate_limits')) {
971 + $integrator->mxchat_reset_rate_limits();
972 + update_option('mxchat_next_rate_limit_check', time() + 3600);
973 + }
1351 974 }
1352 975 }
1353 976 }
1354 977
@@ -1360,9 +983,9 @@
1360 983 global $wpdb;
1361 984
1362 985 try {
1363 986 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1364 - $plugin_version = MXCHAT_BASE_VERSION;
987 + $plugin_version = MXCHAT_VERSION;
1365 988
1366 989 // Always ensure critical tables exist (even if version matches)
1367 990 // This handles manual table deletion or fresh installs
1368 991 $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
@@ -1424,39 +1047,8 @@
1424 1047 if (version_compare($current_version, '3.0.6', '<')) {
1425 1048 mxchat_migrate_deprecated_models();
1426 1049 }
1427 1050
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($current_version, '3.2.16', '<')) {
1456 - mxchat_migrate_deprecated_models();
1457 - }
1458 -
1459 1051 // Run full activation to ensure everything is up to date
1460 1052 mxchat_activate();
1461 1053
1462 1054 // Run migration functions
@@ -1627,9 +1219,9 @@
1627 1219 // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1628 1220 if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1629 1221 // Check if Pro is activated - only show to Pro users
1630 1222 $license_status = get_option('mxchat_license_status', 'inactive');
1631 - $is_pro = ($license_status === 'active');
1223 + $is_pro = ($license_status === 'active' || $license_status === esc_html__('active', 'mxchat'));
1632 1224
1633 1225 if ($is_pro) {
1634 1226 // Set flag to show the theme migration notification banner
1635 1227 update_option('mxchat_show_theme_migration_notice', true);
@@ -1655,9 +1247,8 @@
1655 1247 add_action('init', 'mxchat_check_fallback_rate_limits', 5);
1656 1248
1657 1249 // Add migration notice hook
1658 1250 add_action('admin_notices', 'mxchat_show_migration_notice');
1659 - add_action('admin_notices', 'mxchat_show_model_access_notice');
1660 1251
1661 1252 // Initialize classes with error handling
1662 1253 try {
1663 1254 // Initialize admin classes
@@ -1682,23 +1273,8 @@
1682 1273 if (class_exists('MxChat_Content_Generator')) {
1683 1274 new MxChat_Content_Generator();
1684 1275 }
1685 1276
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 1277 // Initialize public classes
1702 1278 if (class_exists('MxChat_Public')) {
1703 1279 $mxchat_public = new MxChat_Public();
1704 1280 }
@@ -1743,25 +1319,11 @@
1743 1319
1744 1320 mxchat_migrate_pinecone_roles_add_bot_id();
1745 1321 mxchat_migrate_add_content_type_column();
1746 1322 mxchat_migrate_add_translations_table();
1747 - mxchat_migrate_add_session_ratings_table();
1748 1323 }
1749 1324
1750 1325 /**
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 1326 * Migration: Create transcript translations table (v3.0.4)
1765 1327 * For users upgrading from versions before 3.0.4
1766 1328 */
1767 1329 function mxchat_migrate_add_translations_table() {
@@ -1804,67 +1366,5 @@
1804 1366 return $schedules;
1805 1367 });
1806 1368
1807 1369 // 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');
1370 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');