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MxChat – AI Chatbot & Content Generation for WordPress / 3.2.0
MxChat – AI Chatbot & Content Generation for WordPress v3.2.0
3.2.21 3.2.20 3.2.19 3.2.18 3.2.17 3.2.16 3.2.15 3.2.14 3.2.12 3.2.13 3.2.11 3.2.10 3.2.9 3.2.8 3.2.7 3.2.6 3.2.5 3.2.4 3.2.3 3.2.2 3.2.1 2.0.3 2.0.4 2.0.5 2.0.6 All 152 releases
← All changes | mxchat-basic.php +5 -316 3.2.103.2.0 View file →
@@ -2,9 +2,9 @@
2 2 /**
3 3 * Plugin Name: MxChat
4 4 * Plugin URI: https://mxchat.ai/
5 5 * Description: AI chatbot for WordPress with OpenAI, Claude, xAI, DeepSeek, live agent, PDF uploads, WooCommerce, and training on website data.
6 - * Version: 3.2.10
6 + * Version: 3.2.0
7 7 * Author: MxChat
8 8 * Author URI: https://mxchat.ai
9 9 * License: GPLv2 or later
10 10 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
@@ -46,84 +46,8 @@
46 46 }
47 47 add_action('init', 'mxchat_load_textdomain');
48 48
49 49 /**
50 - * One-time migration: gemini-3-pro-preview was shut down by Google on March 9, 2026.
51 - * Existing installs with the dead ID get auto-remapped to gemini-3.1-pro-preview
52 - * (Google's official migration target) the first time admin_init fires after update.
53 - */
54 -add_action('admin_init', function () {
55 - if (get_option('mxchat_gemini_3_remap_done')) {
56 - return;
57 - }
58 - $opts = get_option('mxchat_options');
59 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'gemini-3-pro-preview') {
60 - $opts['model'] = 'gemini-3.1-pro-preview';
61 - update_option('mxchat_options', $opts);
62 - }
63 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'gemini-3-pro-preview') {
64 - $opts['content_model'] = 'gemini-3.1-pro-preview';
65 - update_option('mxchat_options', $opts);
66 - }
67 - update_option('mxchat_gemini_3_remap_done', 1);
68 -});
69 -
70 -/**
71 - * One-time migration: the Grok 2 family was retired by xAI (grok-2, grok-2-1212,
72 - * grok-2-latest, grok-2-vision-1212 all return 400 "Model not found"). Existing
73 - * installs with the dead ID get auto-remapped to grok-4-1-fast-non-reasoning
74 - * (modern, fast, broadly available) the first time admin_init fires after update.
75 - */
76 -add_action('admin_init', function () {
77 - if (get_option('mxchat_grok_2_remap_done')) {
78 - return;
79 - }
80 - $opts = get_option('mxchat_options');
81 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'grok-2') {
82 - $opts['model'] = 'grok-4-1-fast-non-reasoning';
83 - update_option('mxchat_options', $opts);
84 - }
85 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'grok-2') {
86 - $opts['content_model'] = 'grok-4-1-fast-non-reasoning';
87 - update_option('mxchat_options', $opts);
88 - }
89 - update_option('mxchat_grok_2_remap_done', 1);
90 -});
91 -
92 -/**
93 - * One-time migration: Anthropic retired the Claude 4 (2025-05-14) snapshots on
94 - * June 15, 2026 — claude-opus-4-20250514 and claude-sonnet-4-20250514 now return
95 - * an API error. Existing installs with a dead ID get auto-remapped to the current
96 - * equivalents Anthropic recommends (Opus 4.8 / Sonnet 4.6) the first time admin_init
97 - * fires after update. Mirrors the gemini-3-pro-preview / grok-2 rescues above.
98 - */
99 -add_action('admin_init', function () {
100 - if (get_option('mxchat_claude_4_retire_remap_done')) {
101 - return;
102 - }
103 - $map = array(
104 - 'claude-opus-4-20250514' => 'claude-opus-4-8',
105 - 'claude-sonnet-4-20250514' => 'claude-sonnet-4-6',
106 - );
107 - $opts = get_option('mxchat_options');
108 - if (is_array($opts)) {
109 - $changed = false;
110 - if (isset($opts['model']) && isset($map[$opts['model']])) {
111 - $opts['model'] = $map[$opts['model']];
112 - $changed = true;
113 - }
114 - if (isset($opts['content_model']) && isset($map[$opts['content_model']])) {
115 - $opts['content_model'] = $map[$opts['content_model']];
116 - $changed = true;
117 - }
118 - if ($changed) {
119 - update_option('mxchat_options', $opts);
120 - }
121 - }
122 - update_option('mxchat_claude_4_retire_remap_done', 1);
123 -});
124 -
125 -/**
126 50 * Exclude MxChat assets from caching plugin optimizations
127 51 *
128 52 * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache,
129 53 * W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by
@@ -326,66 +250,11 @@
326 250 $rejected[] = 'wp-admin/admin-ajax.php';
327 251 return $rejected;
328 252 });
329 253
330 -// ── Page-cache bypass for chat AJAX (companion to the 3.2.6 nonce-race hotfix)
331 -// Each cache plugin gets its own filter export so that visitors hitting an
332 -// edge-cached page never receive cached chat-AJAX responses. The chat send /
333 -// stream send / file upload all POST to /wp-admin/admin-ajax.php with
334 -// `action=mxchat_*`. Without these exports, a cache plugin can stale a response
335 -// and break the per-session nonce flow on the first message.
336 -
337 -// WP Rocket — `rocket_cache_reject_uri` takes a flat array of regex strings.
338 -add_filter('rocket_cache_reject_uri', function($uris) {
339 - if (!is_array($uris)) $uris = array();
340 - $uris[] = '/wp-admin/admin-ajax\.php\?action=mxchat_.*';
341 - return $uris;
342 -});
343 -
344 -// LiteSpeed Cache — `litespeed_cache_no_cache_for_request` short-circuits
345 -// caching when the request matches our chat-AJAX pattern.
346 -add_filter('litespeed_cache_no_cache_for_request', function($no_cache) {
347 - if ($no_cache) return $no_cache;
348 - if (!empty($_SERVER['REQUEST_URI']) &&
349 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
350 - !empty($_REQUEST['action']) &&
351 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
352 - return true;
353 - }
354 - return $no_cache;
355 -});
356 -
357 -// W3 Total Cache — `w3tc_pgcache_request_skip_uri` flips page-cache off when
358 -// the URI matches.
359 -add_filter('w3tc_pgcache_request_skip_uri', function($skip) {
360 - if ($skip) return $skip;
361 - if (!empty($_SERVER['REQUEST_URI']) &&
362 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
363 - !empty($_REQUEST['action']) &&
364 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
365 - return true;
366 - }
367 - return $skip;
368 -});
369 -
370 -// FlyingPress — `flying_press_cacheable` takes a boolean and is run per
371 -// request. Same pattern as LiteSpeed / W3TC.
372 -add_filter('flying_press_cacheable', function($cacheable) {
373 - if (!$cacheable) return $cacheable;
374 - if (!empty($_SERVER['REQUEST_URI']) &&
375 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
376 - !empty($_REQUEST['action']) &&
377 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
378 - return false;
379 - }
380 - return $cacheable;
381 -});
382 -
383 254 // Include classes with error handling
384 255 function mxchat_include_classes() {
385 256 $class_files = array(
386 - 'includes/class-mxchat-model-catalog.php',
387 - 'includes/class-mxchat-tool-registry.php',
388 257 'includes/class-mxchat-integrator.php',
389 258 'includes/class-mxchat-admin.php',
390 259 'includes/class-mxchat-public.php',
391 260 'includes/class-mxchat-utils.php',
@@ -393,10 +262,8 @@
393 262 'includes/class-mxchat-meta-box.php',
394 263 'includes/class-mxchat-chunker.php',
395 264 'includes/class-mxchat-word-handler.php',
396 265 'includes/class-mxchat-content-generator.php',
397 - 'includes/class-mxchat-cache-purge.php',
398 - 'includes/class-rest-api.php',
399 266 'admin/class-ajax-handler.php',
400 267 'admin/class-pinecone-manager.php',
401 268 'admin/class-knowledge-manager.php'
402 269 );
@@ -408,31 +275,8 @@
408 275 } else {
409 276 //error_log('MxChat: Missing class file - ' . $file);
410 277 }
411 278 }
412 -
413 - // Register the native function-calling admin-post save handler (a41dee).
414 - if (class_exists('MxChat_Tool_Registry')) {
415 - MxChat_Tool_Registry::init();
416 - }
417 -
418 - // Admin pages that aren't classes (procedural include).
419 - if (is_admin()) {
420 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
421 - if (file_exists($admin_api_page)) {
422 - require_once $admin_api_page;
423 - }
424 - // f7c7d4 renamed this file admin-dashboard-page.php → admin-onboarding-page.php.
425 - // The require MUST live here (admin bootstrap) and not just inside
426 - // mxchat_add_plugin_page() on the admin_menu hook — admin_menu does NOT
427 - // fire on admin-ajax.php requests, so the wizard's AJAX handlers
428 - // (plan-905439: mxchat_onboarding_kb_status / save_step / mark_step /
429 - // auto_graduate + the f7c7d4 dismiss handler) would never register.
430 - $admin_onboarding_page = plugin_dir_path(__FILE__) . 'includes/admin-onboarding-page.php';
431 - if (file_exists($admin_onboarding_page)) {
432 - require_once $admin_onboarding_page;
433 - }
434 - }
435 279 }
436 280
437 281 /**
438 282 * Lazy-load the PDF parser library only when needed.
@@ -764,33 +608,8 @@
764 608 update_option('mxchat_content_type_migration_version', '2.5.6');
765 609 }
766 610
767 611 /**
768 - * 3.2.4: Backfill the active embedding model option for installs that already
769 - * have KB content but no stamped model. The mismatch warning compares this
770 - * against the user's currently selected model — no per-row column needed.
771 - */
772 -function mxchat_backfill_active_embedding_model() {
773 - global $wpdb;
774 -
775 - if (get_option('mxchat_active_embedding_model', '') !== '') {
776 - return;
777 - }
778 -
779 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
780 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
781 - return;
782 - }
783 -
784 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
785 - if ($kb_count > 0) {
786 - $options = get_option('mxchat_options', array());
787 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
788 - update_option('mxchat_active_embedding_model', $current_model, false);
789 - }
790 -}
791 -
792 -/**
793 612 * 2.5.2: Create queue processing tables for reliable background processing
794 613 */
795 614 function mxchat_create_queue_tables() {
796 615 global $wpdb;
@@ -862,34 +681,8 @@
862 681 dbDelta($sql);
863 682 }
864 683
865 684 /**
866 - * Create per-session satisfaction ratings table (v3.2.6)
867 - * Stores one 👍/👎 rating + optional feedback per chat session.
868 - */
869 -function mxchat_create_session_ratings_table() {
870 - global $wpdb;
871 - $charset_collate = $wpdb->get_charset_collate();
872 -
873 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
874 - $sql = "CREATE TABLE $table_name (
875 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
876 - session_id varchar(255) NOT NULL,
877 - bot_id varchar(50) NOT NULL DEFAULT 'default',
878 - rating_value tinyint(1) NOT NULL,
879 - rating_feedback text DEFAULT NULL,
880 - created_at datetime NOT NULL,
881 - PRIMARY KEY (id),
882 - UNIQUE KEY session_id (session_id),
883 - KEY bot_id (bot_id),
884 - KEY created_at (created_at)
885 - ) $charset_collate;";
886 -
887 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
888 - dbDelta($sql);
889 -}
890 -
891 -/**
892 685 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
893 686 * This fixes "url, source_url. The supplied values may be too long" errors
894 687 */
895 688 function mxchat_fix_url_column_size() {
@@ -1075,11 +868,8 @@
1075 868
1076 869 // Create transcript translations table
1077 870 mxchat_create_translations_table();
1078 871
1079 - // Create per-session satisfaction ratings table (v3.2.6)
1080 - mxchat_create_session_ratings_table();
1081 -
1082 872 // Ensure additional columns in system prompt table
1083 873 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1084 874 if (!empty($existing_system_columns)) {
1085 875 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1122,11 +912,8 @@
1122 912
1123 913 // Run migration for existing installations
1124 914 mxchat_migrate_pinecone_roles_add_bot_id();
1125 915
1126 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1127 - mxchat_backfill_active_embedding_model();
1128 -
1129 916 // Setup cron jobs
1130 917 mxchat_setup_cron_jobs();
1131 918
1132 919 // Update version
@@ -1161,14 +948,13 @@
1161 948 // Clear fallback flags if cron scheduling succeeded
1162 949 delete_option('mxchat_use_fallback_rate_limits');
1163 950 }
1164 951
1165 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
952 + // Schedule transcript cleanup if configured
1166 953 $transcript_options = get_option('mxchat_transcripts_options', array());
1167 954 $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1168 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1169 -
1170 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
955 +
956 + if ($cleanup_interval !== 'never') {
1171 957 // Check if not already scheduled
1172 958 if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1173 959 // Schedule to run daily at 3 AM
1174 960 $next_run = strtotime('tomorrow 3:00 AM');
@@ -1302,14 +1088,8 @@
1302 1088 delete_option('mxchat_email_null');
1303 1089 delete_option('mxchat_name_null');
1304 1090 }
1305 1091
1306 - // 3.2.4: Backfill active embedding model option for the warning UI
1307 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1308 - if (version_compare($current_version, '3.2.4', '<')) {
1309 - mxchat_backfill_active_embedding_model();
1310 - }
1311 -
1312 1092 // Run full activation to ensure everything is up to date
1313 1093 mxchat_activate();
1314 1094
1315 1095 // Run migration functions
@@ -1534,23 +1314,8 @@
1534 1314 if (class_exists('MxChat_Content_Generator')) {
1535 1315 new MxChat_Content_Generator();
1536 1316 }
1537 1317
1538 - // Initialize cache purge globally — settings writes can happen on any
1539 - // request type (admin screens, admin-ajax autosave, wp-cli), and the
1540 - // deferred-purge cron event fires on front-end requests.
1541 - if (class_exists('MxChat_Cache_Purge')) {
1542 - MxChat_Cache_Purge::init();
1543 - }
1544 -
1545 - // Initialize REST API globally — endpoints must be registered on
1546 - // every request (admin and frontend) so they're reachable via /wp-json/.
1547 - // Endpoints are auth-gated and locked until the site owner generates
1548 - // a token in MxChat → API Access.
1549 - if (class_exists('MxChat_Rest_Api')) {
1550 - new MxChat_Rest_Api();
1551 - }
1552 -
1553 1318 // Initialize public classes
1554 1319 if (class_exists('MxChat_Public')) {
1555 1320 $mxchat_public = new MxChat_Public();
1556 1321 }
@@ -1595,25 +1360,11 @@
1595 1360
1596 1361 mxchat_migrate_pinecone_roles_add_bot_id();
1597 1362 mxchat_migrate_add_content_type_column();
1598 1363 mxchat_migrate_add_translations_table();
1599 - mxchat_migrate_add_session_ratings_table();
1600 1364 }
1601 1365
1602 1366 /**
1603 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1604 - * For users upgrading from versions before 3.2.6
1605 - */
1606 -function mxchat_migrate_add_session_ratings_table() {
1607 - $migration_key = 'mxchat_session_ratings_table_created';
1608 - if (get_option($migration_key)) {
1609 - return;
1610 - }
1611 - mxchat_create_session_ratings_table();
1612 - update_option($migration_key, '3.2.6');
1613 -}
1614 -
1615 -/**
1616 1367 * Migration: Create transcript translations table (v3.0.4)
1617 1368 * For users upgrading from versions before 3.0.4
1618 1369 */
1619 1370 function mxchat_migrate_add_translations_table() {
@@ -1656,67 +1407,5 @@
1656 1407 return $schedules;
1657 1408 });
1658 1409
1659 1410 // Register deactivation hook
1660 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1661 -
1662 -/**
1663 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1664 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1665 - * session_id makes this naturally idempotent — only the first rating per
1666 - * session is stored; duplicate POSTs are silent no-ops.
1667 - */
1668 -function mxchat_save_session_rating() {
1669 - global $wpdb;
1670 -
1671 - $session_id = isset($_POST['session_id']) ? sanitize_text_field(wp_unslash($_POST['session_id'])) : '';
1672 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1673 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1674 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1675 -
1676 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1677 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1678 - }
1679 -
1680 - if (strlen($feedback) > 1000) {
1681 - $feedback = substr($feedback, 0, 1000);
1682 - }
1683 -
1684 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1685 - $existing = $wpdb->get_var($wpdb->prepare(
1686 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1687 - $session_id
1688 - ));
1689 -
1690 - if ($existing) {
1691 - if ($feedback !== '') {
1692 - $wpdb->update(
1693 - $table_name,
1694 - array('rating_feedback' => $feedback),
1695 - array('id' => (int) $existing),
1696 - array('%s'),
1697 - array('%d')
1698 - );
1699 - }
1700 - wp_send_json_success(array('updated' => true));
1701 - }
1702 -
1703 - $inserted = $wpdb->insert(
1704 - $table_name,
1705 - array(
1706 - 'session_id' => $session_id,
1707 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1708 - 'rating_value' => $rating_raw,
1709 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1710 - 'created_at' => current_time('mysql'),
1711 - ),
1712 - array('%s', '%s', '%d', '%s', '%s')
1713 - );
1714 -
1715 - if ($inserted === false) {
1716 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1717 - }
1718 -
1719 - wp_send_json_success(array('saved' => true));
1720 -}
1721 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1722 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
1411 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');