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MxChat – AI Chatbot & Content Generation for WordPress / 2.5.8
MxChat – AI Chatbot & Content Generation for WordPress v2.5.8
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 +32 -682 3.2.62.5.8 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: 3.2.6
6 + * Version: 2.5.8
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
@@ -15,296 +15,20 @@
15 15 if (!defined('ABSPATH')) {
16 16 exit; // Exit if accessed directly.
17 17 }
18 18
19 -
20 -if (!defined('MXCHAT_DEV_MODE')) {
21 - define('MXCHAT_DEV_MODE', false);
22 -}
23 -
19 +// Define plugin version constant for asset versioning
20 +// Reads version from plugin header automatically
24 21 if (!defined('MXCHAT_VERSION')) {
25 22 $plugin_data = get_file_data(__FILE__, array('Version' => 'Version'), 'plugin');
26 - $version = $plugin_data['Version'];
27 - if (MXCHAT_DEV_MODE) {
28 - $version .= '.' . time();
29 - }
30 - define('MXCHAT_VERSION', $version);
23 + define('MXCHAT_VERSION', $plugin_data['Version']);
31 24 }
32 25
33 26 function mxchat_load_textdomain() {
34 - $domain = 'mxchat';
35 - $locale = determine_locale();
36 -
37 - // First, try to load from /wp-content/languages/plugins/ (preserved during updates)
38 - $mo_file = WP_LANG_DIR . '/plugins/' . $domain . '-' . $locale . '.mo';
39 - if (file_exists($mo_file)) {
40 - load_textdomain($domain, $mo_file);
41 - return;
42 - }
43 -
44 - // Fallback to plugin's /languages directory
45 - load_plugin_textdomain($domain, false, dirname(plugin_basename(__FILE__)) . '/languages');
27 + load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages');
46 28 }
47 29 add_action('init', 'mxchat_load_textdomain');
48 30
49 -/**
50 - * Exclude MxChat assets from caching plugin optimizations
51 - *
52 - * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache,
53 - * W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by
54 - * removing "unused" CSS, minifying/combining JS, or deferring/delaying jQuery.
55 - *
56 - * Both chat-script.js and floating-script.js depend on jQuery, so jQuery must also
57 - * be excluded from any optimization that changes load order or timing.
58 - */
59 -
60 -// ── WP Rocket ────────────────────────────────────────────────────────────────
61 -
62 -// Exclude from Remove Unused CSS (RUCSS)
63 -add_filter('rocket_rucss_inline_atts_exclusions', function($exclusions) {
64 - if (!is_array($exclusions)) $exclusions = array();
65 - $exclusions[] = 'mxchat';
66 - return $exclusions;
67 -});
68 -
69 -// Exclude CSS from minification/combination
70 -add_filter('rocket_exclude_css', function($excluded) {
71 - if (!is_array($excluded)) $excluded = array();
72 - $excluded[] = '/plugins/mxchat-basic/css/chat-style.css';
73 - return $excluded;
74 -});
75 -
76 -// Exclude JS from minification/combination
77 -add_filter('rocket_exclude_js', function($excluded) {
78 - if (!is_array($excluded)) $excluded = array();
79 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
80 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
81 - $excluded[] = '/jquery-core';
82 - $excluded[] = '/jquery.min.js';
83 - $excluded[] = '/jquery.js';
84 - $excluded[] = '/jquery-migrate';
85 - return $excluded;
86 -});
87 -
88 -// Exclude JS from defer
89 -add_filter('rocket_exclude_defer_js', function($excluded) {
90 - if (!is_array($excluded)) $excluded = array();
91 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
92 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
93 - $excluded[] = '/jquery-core';
94 - $excluded[] = '/jquery.min.js';
95 - $excluded[] = '/jquery.js';
96 - $excluded[] = '/jquery-migrate';
97 - return $excluded;
98 -});
99 -
100 -// Exclude from delay JS execution
101 -add_filter('rocket_delay_js_exclusions', function($excluded) {
102 - if (!is_array($excluded)) $excluded = array();
103 - $excluded[] = 'mxchat';
104 - $excluded[] = 'chat-script';
105 - $excluded[] = 'floating-script';
106 - $excluded[] = '/jquery-core';
107 - $excluded[] = '/jquery.min.js';
108 - $excluded[] = '/jquery.js';
109 - $excluded[] = '/jquery-migrate';
110 - return $excluded;
111 -});
112 -
113 -// ── LiteSpeed Cache ──────────────────────────────────────────────────────────
114 -
115 -// Exclude CSS from optimization
116 -add_filter('litespeed_optimize_css_excludes', function($excluded) {
117 - if (!is_array($excluded)) $excluded = array();
118 - $excluded[] = 'chat-style.css';
119 - $excluded[] = 'mxchat';
120 - return $excluded;
121 -});
122 -
123 -// Exclude from UCSS (Unique CSS) - prevents LiteSpeed from stripping "unused" MxChat CSS
124 -add_filter('litespeed_ucss_whitelist', function($whitelist) {
125 - if (!is_array($whitelist)) $whitelist = array();
126 - $whitelist[] = '.mxchat-chatbot-wrapper';
127 - $whitelist[] = '.floating-chatbot';
128 - $whitelist[] = '.floating-chatbot-button';
129 - $whitelist[] = '.chatbot-top-bar';
130 - $whitelist[] = '.mxchat-chatbot';
131 - $whitelist[] = '.chat-container';
132 - $whitelist[] = '.chat-box';
133 - $whitelist[] = '.bot-message';
134 - $whitelist[] = '.input-container';
135 - $whitelist[] = '.chat-input';
136 - $whitelist[] = '.send-button';
137 - $whitelist[] = '.pre-chat-message';
138 - $whitelist[] = '.mxchat-popular-questions';
139 - $whitelist[] = '.chat-toolbar';
140 - $whitelist[] = '.exit-chat';
141 - $whitelist[] = '.email-blocker';
142 - return $whitelist;
143 -});
144 -
145 -// Exclude CSS from CCSS (Critical CSS) generation
146 -add_filter('litespeed_optm_ccss_exc', function($excluded) {
147 - if (!is_array($excluded)) $excluded = array();
148 - $excluded[] = 'chat-style.css';
149 - $excluded[] = 'mxchat';
150 - return $excluded;
151 -});
152 -
153 -// Exclude JS from defer
154 -add_filter('litespeed_optm_js_defer_exc', function($excluded) {
155 - if (!is_array($excluded)) $excluded = array();
156 - $excluded[] = 'chat-script.js';
157 - $excluded[] = 'floating-script.js';
158 - $excluded[] = 'mxchat';
159 - $excluded[] = 'jquery.min.js';
160 - $excluded[] = 'jquery.js';
161 - return $excluded;
162 -});
163 -
164 -// Exclude JS from combining
165 -add_filter('litespeed_optm_js_exc', function($excluded) {
166 - if (!is_array($excluded)) $excluded = array();
167 - $excluded[] = 'chat-script.js';
168 - $excluded[] = 'floating-script.js';
169 - $excluded[] = 'mxchat';
170 - $excluded[] = 'jquery.min.js';
171 - $excluded[] = 'jquery.js';
172 - return $excluded;
173 -});
174 -
175 -// Exclude JS from delayed execution
176 -add_filter('litespeed_optm_js_delay_exc', function($excluded) {
177 - if (!is_array($excluded)) $excluded = array();
178 - $excluded[] = 'chat-script.js';
179 - $excluded[] = 'floating-script.js';
180 - $excluded[] = 'mxchat';
181 - return $excluded;
182 -});
183 -
184 -// Exclude from Guest Mode optimization
185 -add_filter('litespeed_guest_optm_exc', function($excluded) {
186 - if (!is_array($excluded)) $excluded = array();
187 - $excluded[] = 'mxchat';
188 - $excluded[] = 'chat-style';
189 - $excluded[] = 'chat-script';
190 - $excluded[] = 'floating-script';
191 - return $excluded;
192 -});
193 -
194 -// ── Autoptimize ──────────────────────────────────────────────────────────────
195 -
196 -// Exclude CSS from optimization (comma-separated strings)
197 -add_filter('autoptimize_filter_css_exclude', function($excluded) {
198 - if (!is_string($excluded)) $excluded = '';
199 - return $excluded . ', mxchat, chat-style.css';
200 -});
201 -
202 -// Exclude JS from optimization (comma-separated strings)
203 -add_filter('autoptimize_filter_js_exclude', function($excluded) {
204 - if (!is_string($excluded)) $excluded = '';
205 - return $excluded . ', mxchat, chat-script.js, floating-script.js, jquery.min.js, jquery.js';
206 -});
207 -
208 -// ── SG Optimizer (SiteGround) ────────────────────────────────────────────────
209 -
210 -add_filter('sgo_js_minify_exclude', function($excluded) {
211 - if (!is_array($excluded)) $excluded = array();
212 - $excluded[] = 'chat-script.js';
213 - $excluded[] = 'floating-script.js';
214 - $excluded[] = 'jquery.min.js';
215 - return $excluded;
216 -});
217 -
218 -add_filter('sgo_javascript_combine_exclude', function($excluded) {
219 - if (!is_array($excluded)) $excluded = array();
220 - $excluded[] = 'chat-script.js';
221 - $excluded[] = 'floating-script.js';
222 - $excluded[] = 'jquery.min.js';
223 - return $excluded;
224 -});
225 -
226 -add_filter('sgo_js_async_exclude', function($excluded) {
227 - if (!is_array($excluded)) $excluded = array();
228 - $excluded[] = 'chat-script.js';
229 - $excluded[] = 'floating-script.js';
230 - $excluded[] = 'jquery.min.js';
231 - return $excluded;
232 -});
233 -
234 -// ── W3 Total Cache ───────────────────────────────────────────────────────────
235 -
236 -add_filter('w3tc_minify_js_do_tag_minification', function($do_minify, $script_tag, $file) {
237 - if (strpos($file, 'chat-script.js') !== false ||
238 - strpos($file, 'floating-script.js') !== false ||
239 - strpos($file, 'jquery.min.js') !== false ||
240 - strpos($file, 'jquery.js') !== false) {
241 - return false;
242 - }
243 - return $do_minify;
244 -}, 10, 3);
245 -
246 -// ── WP Super Cache ──────────────────────────────────────────────────────────
247 -
248 -add_filter('wpsc_rejected_uri', function($rejected) {
249 - if (!is_array($rejected)) $rejected = array();
250 - $rejected[] = 'wp-admin/admin-ajax.php';
251 - return $rejected;
252 -});
253 -
254 -// ── Page-cache bypass for chat AJAX (companion to the 3.2.6 nonce-race hotfix)
255 -// Each cache plugin gets its own filter export so that visitors hitting an
256 -// edge-cached page never receive cached chat-AJAX responses. The chat send /
257 -// stream send / file upload all POST to /wp-admin/admin-ajax.php with
258 -// `action=mxchat_*`. Without these exports, a cache plugin can stale a response
259 -// and break the per-session nonce flow on the first message.
260 -
261 -// WP Rocket — `rocket_cache_reject_uri` takes a flat array of regex strings.
262 -add_filter('rocket_cache_reject_uri', function($uris) {
263 - if (!is_array($uris)) $uris = array();
264 - $uris[] = '/wp-admin/admin-ajax\.php\?action=mxchat_.*';
265 - return $uris;
266 -});
267 -
268 -// LiteSpeed Cache — `litespeed_cache_no_cache_for_request` short-circuits
269 -// caching when the request matches our chat-AJAX pattern.
270 -add_filter('litespeed_cache_no_cache_for_request', function($no_cache) {
271 - if ($no_cache) return $no_cache;
272 - if (!empty($_SERVER['REQUEST_URI']) &&
273 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
274 - !empty($_REQUEST['action']) &&
275 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
276 - return true;
277 - }
278 - return $no_cache;
279 -});
280 -
281 -// W3 Total Cache — `w3tc_pgcache_request_skip_uri` flips page-cache off when
282 -// the URI matches.
283 -add_filter('w3tc_pgcache_request_skip_uri', function($skip) {
284 - if ($skip) return $skip;
285 - if (!empty($_SERVER['REQUEST_URI']) &&
286 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
287 - !empty($_REQUEST['action']) &&
288 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
289 - return true;
290 - }
291 - return $skip;
292 -});
293 -
294 -// FlyingPress — `flying_press_cacheable` takes a boolean and is run per
295 -// request. Same pattern as LiteSpeed / W3TC.
296 -add_filter('flying_press_cacheable', function($cacheable) {
297 - if (!$cacheable) return $cacheable;
298 - if (!empty($_SERVER['REQUEST_URI']) &&
299 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
300 - !empty($_REQUEST['action']) &&
301 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
302 - return false;
303 - }
304 - return $cacheable;
305 -});
306 -
307 31 // Include classes with error handling
308 32 function mxchat_include_classes() {
309 33 $class_files = array(
310 34 'includes/class-mxchat-integrator.php',
@@ -312,12 +36,10 @@
312 36 'includes/class-mxchat-public.php',
313 37 'includes/class-mxchat-utils.php',
314 38 'includes/class-mxchat-user.php',
315 39 'includes/class-mxchat-meta-box.php',
316 - 'includes/class-mxchat-chunker.php',
40 + 'includes/pdf-parser/alt_autoload.php',
317 41 'includes/class-mxchat-word-handler.php',
318 - 'includes/class-mxchat-content-generator.php',
319 - 'includes/class-rest-api.php',
320 42 'admin/class-ajax-handler.php',
321 43 'admin/class-pinecone-manager.php',
322 44 'admin/class-knowledge-manager.php'
323 45 );
@@ -329,35 +51,11 @@
329 51 } else {
330 52 //error_log('MxChat: Missing class file - ' . $file);
331 53 }
332 54 }
333 -
334 - // Admin pages that aren't classes (procedural include).
335 - if (is_admin()) {
336 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
337 - if (file_exists($admin_api_page)) {
338 - require_once $admin_api_page;
339 - }
340 - }
341 55 }
342 56
343 57 /**
344 - * Lazy-load the PDF parser library only when needed.
345 - * Avoids loading 44 files on every page request.
346 - */
347 -function mxchat_load_pdf_parser() {
348 - if (class_exists('\Smalot\PdfParser\Parser')) {
349 - return true;
350 - }
351 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
352 - if (file_exists($autoload_path)) {
353 - require_once $autoload_path;
354 - return true;
355 - }
356 - return false;
357 -}
358 -
359 -/**
360 58 * Create URL click tracking table
361 59 */
362 60 function mxchat_create_url_clicks_table() {
363 61 global $wpdb;
@@ -440,13 +138,12 @@
440 138
441 139 // Define all required columns and their types
442 140 $required_columns = [
443 141 'user_identifier' => 'VARCHAR(255) DEFAULT NULL',
444 - 'user_email' => 'VARCHAR(255) DEFAULT NULL',
142 + 'user_email' => 'VARCHAR(255) DEFAULT NULL',
445 143 'user_name' => 'VARCHAR(100) DEFAULT NULL',
446 144 'originating_page_url' => 'TEXT DEFAULT NULL',
447 - 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL',
448 - 'rag_context' => 'LONGTEXT DEFAULT NULL'
145 + 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL'
449 146 ];
450 147
451 148 // Get existing columns
452 149 $existing_columns = $wpdb->get_results("SHOW COLUMNS FROM $table_name");
@@ -625,9 +322,9 @@
625 322
626 323 // Add index for bot_id
627 324 $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
628 325
629 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
326 + error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
630 327 }
631 328
632 329 // Mark migration as complete
633 330 update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
@@ -662,9 +359,9 @@
662 359
663 360 // Add index for better query performance
664 361 $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
665 362
666 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
363 + error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
667 364 }
668 365
669 366 // Mark migration as complete
670 367 update_option('mxchat_content_type_migration_version', '2.5.6');
@@ -670,33 +367,8 @@
670 367 update_option('mxchat_content_type_migration_version', '2.5.6');
671 368 }
672 369
673 370 /**
674 - * 3.2.4: Backfill the active embedding model option for installs that already
675 - * have KB content but no stamped model. The mismatch warning compares this
676 - * against the user's currently selected model — no per-row column needed.
677 - */
678 -function mxchat_backfill_active_embedding_model() {
679 - global $wpdb;
680 -
681 - if (get_option('mxchat_active_embedding_model', '') !== '') {
682 - return;
683 - }
684 -
685 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
686 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
687 - return;
688 - }
689 -
690 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
691 - if ($kb_count > 0) {
692 - $options = get_option('mxchat_options', array());
693 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
694 - update_option('mxchat_active_embedding_model', $current_model, false);
695 - }
696 -}
697 -
698 -/**
699 371 * 2.5.2: Create queue processing tables for reliable background processing
700 372 */
701 373 function mxchat_create_queue_tables() {
702 374 global $wpdb;
@@ -744,58 +416,8 @@
744 416 //error_log("MxChat: Queue tables created/updated successfully");
745 417 }
746 418
747 419 /**
748 - * Create transcript translations table for persisting translations
749 - */
750 -function mxchat_create_translations_table() {
751 - global $wpdb;
752 - $charset_collate = $wpdb->get_charset_collate();
753 -
754 - $table_name = $wpdb->prefix . 'mxchat_transcript_translations';
755 - $sql = "CREATE TABLE $table_name (
756 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
757 - session_id varchar(255) NOT NULL,
758 - language_code varchar(10) NOT NULL,
759 - translations longtext NOT NULL,
760 - created_at datetime NOT NULL,
761 - updated_at datetime NOT NULL,
762 - PRIMARY KEY (id),
763 - UNIQUE KEY session_lang (session_id, language_code),
764 - KEY session_id (session_id)
765 - ) $charset_collate;";
766 -
767 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
768 - dbDelta($sql);
769 -}
770 -
771 -/**
772 - * Create per-session satisfaction ratings table (v3.2.6)
773 - * Stores one 👍/👎 rating + optional feedback per chat session.
774 - */
775 -function mxchat_create_session_ratings_table() {
776 - global $wpdb;
777 - $charset_collate = $wpdb->get_charset_collate();
778 -
779 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
780 - $sql = "CREATE TABLE $table_name (
781 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
782 - session_id varchar(255) NOT NULL,
783 - bot_id varchar(50) NOT NULL DEFAULT 'default',
784 - rating_value tinyint(1) NOT NULL,
785 - rating_feedback text DEFAULT NULL,
786 - created_at datetime NOT NULL,
787 - PRIMARY KEY (id),
788 - UNIQUE KEY session_id (session_id),
789 - KEY bot_id (bot_id),
790 - KEY created_at (created_at)
791 - ) $charset_collate;";
792 -
793 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
794 - dbDelta($sql);
795 -}
796 -
797 -/**
798 420 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
799 421 * This fixes "url, source_url. The supplied values may be too long" errors
800 422 */
801 423 function mxchat_fix_url_column_size() {
@@ -818,80 +440,22 @@
818 440
819 441 /**
820 442 * Migrate deprecated AI models to their replacements
821 443 * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
822 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
823 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
824 444 */
825 -function mxchat_migrate_transcripts_charset() {
826 - global $wpdb;
827 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
828 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
829 -}
830 -
831 -/**
832 - * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
833 - */
834 445 function mxchat_migrate_deprecated_models() {
835 446 $options = get_option('mxchat_options', array());
836 - $migrated = false;
837 - $migration_message = '';
838 -
839 - if (!isset($options['model'])) {
840 - return;
841 - }
842 -
843 - $current_model = $options['model'];
844 -
845 - // Migrate deprecated Claude models to Claude Opus 4.6 (recommended replacement per Anthropic)
846 - $deprecated_claude_models = array(
847 - 'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025
848 - 'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025
849 - 'claude-3-7-sonnet-20250219', // Retiring Feb 19, 2026
850 - 'claude-3-opus-20240229', // Retired Jan 5, 2026
851 - 'claude-3-sonnet-20240229', // Legacy
852 - 'claude-3-haiku-20240307', // Legacy
853 - );
854 - if (in_array($current_model, $deprecated_claude_models, true)) {
855 - $options['model'] = 'claude-opus-4-6';
856 - $migrated = true;
857 - $migration_message = sprintf(
858 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
859 - $current_model
860 - );
861 - }
862 -
863 - // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
864 - if ($current_model === 'claude-3-5-haiku-20241022') {
865 - $options['model'] = 'claude-haiku-4-5-20251001';
866 - $migrated = true;
867 - $migration_message = 'Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.';
868 - }
869 -
870 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest
871 - if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
872 - $options['model'] = 'gpt-5.1-chat-latest';
873 - $migrated = true;
874 - $migration_message = sprintf(
875 - 'Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.',
876 - $current_model
877 - );
878 - }
879 -
880 - // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
881 - if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
882 - $options['model'] = 'gpt-5-mini';
883 - $migrated = true;
884 - $migration_message = sprintf(
885 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
886 - $current_model
887 - );
888 - }
889 -
890 - if ($migrated) {
447 +
448 + // Check if model is set and is the deprecated Claude 3.5 Sonnet
449 + if (isset($options['model']) && $options['model'] === 'claude-3-5-sonnet-20241022') {
450 + // Update to Claude 3.7 Sonnet (the replacement model)
451 + $options['model'] = 'claude-3-7-sonnet-20250219';
891 452 update_option('mxchat_options', $options);
453 +
454 + // Set a flag to show admin notice
892 455 update_option('mxchat_model_migrated_notice', true);
893 - update_option('mxchat_model_migration_message', $migration_message);
456 +
457 + //error_log('MxChat: Migrated deprecated Claude 3.5 Sonnet to Claude 3.7 Sonnet');
894 458 }
895 459 }
896 460
897 461 /**
@@ -898,19 +462,17 @@
898 462 * Show admin notice after model migration
899 463 */
900 464 function mxchat_show_migration_notice() {
901 465 if (get_option('mxchat_model_migrated_notice')) {
902 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
903 466 ?>
904 467 <div class="notice notice-info is-dismissible">
905 468 <p>
906 469 <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
907 - <?php echo esc_html($migration_message); ?>
470 + <?php esc_html_e('Your chatbot model has been automatically updated from Claude 3.5 Sonnet to Claude 3.7 Sonnet due to the deprecation of the previous model by Anthropic. Claude 3.7 Sonnet offers improved performance and capabilities.', 'mxchat'); ?>
908 471 </p>
909 472 </div>
910 473 <?php
911 474 delete_option('mxchat_model_migrated_notice');
912 - delete_option('mxchat_model_migration_message');
913 475 }
914 476 }
915 477
916 478 function mxchat_activate() {
@@ -950,26 +512,13 @@
950 512 enabled_bots LONGTEXT DEFAULT NULL,
951 513 PRIMARY KEY (id)
952 514 ) $charset_collate;";
953 515
954 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
955 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
956 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
957 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
958 - intent_id BIGINT(20) UNSIGNED NOT NULL,
959 - phrase TEXT NOT NULL,
960 - embedding_vector LONGTEXT NOT NULL,
961 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
962 - PRIMARY KEY (id),
963 - KEY intent_id (intent_id)
964 - ) $charset_collate;";
965 -
966 516 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
967 517
968 518 // Create other tables
969 519 dbDelta($sql_system_prompt);
970 520 dbDelta($sql_intents_table);
971 - dbDelta($sql_intent_phrases_table);
972 521
973 522 // Create URL click tracking table
974 523 mxchat_create_url_clicks_table();
975 524
@@ -978,14 +527,8 @@
978 527
979 528 // NEW 2.5.2: Create queue processing tables
980 529 mxchat_create_queue_tables();
981 530
982 - // Create transcript translations table
983 - mxchat_create_translations_table();
984 -
985 - // Create per-session satisfaction ratings table (v3.2.6)
986 - mxchat_create_session_ratings_table();
987 -
988 531 // Ensure additional columns in system prompt table
989 532 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
990 533 if (!empty($existing_system_columns)) {
991 534 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1028,11 +571,8 @@
1028 571
1029 572 // Run migration for existing installations
1030 573 mxchat_migrate_pinecone_roles_add_bot_id();
1031 574
1032 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1033 - mxchat_backfill_active_embedding_model();
1034 -
1035 575 // Setup cron jobs
1036 576 mxchat_setup_cron_jobs();
1037 577
1038 578 // Update version
@@ -1067,14 +607,13 @@
1067 607 // Clear fallback flags if cron scheduling succeeded
1068 608 delete_option('mxchat_use_fallback_rate_limits');
1069 609 }
1070 610
1071 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
611 + // Schedule transcript cleanup if configured
1072 612 $transcript_options = get_option('mxchat_transcripts_options', array());
1073 613 $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1074 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1075 -
1076 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
614 +
615 + if ($cleanup_interval !== 'never') {
1077 616 // Check if not already scheduled
1078 617 if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1079 618 // Schedule to run daily at 3 AM
1080 619 $next_run = strtotime('tomorrow 3:00 AM');
@@ -1151,14 +690,11 @@
1151 690
1152 691 // Version-specific migrations
1153 692 if ($current_version !== $plugin_version) {
1154 693 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1155 -
694 +
1156 695 // Run live agent update BEFORE updating the stored version
1157 696 mxchat_handle_live_agent_update();
1158 -
1159 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1160 - mxchat_handle_theme_migration_notice();
1161 697
1162 698 // Run role restriction migration for 2.4.1
1163 699 if (version_compare($current_version, '2.4.1', '<')) {
1164 700 mxchat_add_role_restriction_column();
@@ -1179,43 +715,9 @@
1179 715 mxchat_create_queue_tables();
1180 716 mxchat_fix_url_column_size(); // NEW: Fix URL column size for long URLs
1181 717 //error_log("MxChat: Queue tables created and URL columns updated for upgrade to 2.5.2");
1182 718 }
1183 -
1184 - // 2.6.0: Ensure rag_context column exists for retrieved documents feature
1185 - if (version_compare($current_version, '2.6.0', '<')) {
1186 - $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1187 - mxchat_ensure_all_columns($chat_table);
1188 - //error_log("MxChat: rag_context column migration for 2.6.0");
1189 - }
1190 -
1191 - // 3.0.5: Migrate deprecated Gemini embedding model
1192 - if (version_compare($current_version, '3.0.5', '<')) {
1193 - mxchat_migrate_gemini_embedding_model();
1194 - }
1195 -
1196 - // 3.0.6: Migrate deprecated OpenAI and Claude models
1197 - if (version_compare($current_version, '3.0.6', '<')) {
1198 - mxchat_migrate_deprecated_models();
1199 - }
1200 -
1201 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1202 - if (version_compare($current_version, '3.1.2', '<')) {
1203 - mxchat_migrate_transcripts_charset();
1204 - }
1205 -
1206 - // 3.1.7: Clean up stale shared session email/name entries
1207 - if (version_compare($current_version, '3.1.7', '<')) {
1208 - delete_option('mxchat_email_null');
1209 - delete_option('mxchat_name_null');
1210 - }
1211 -
1212 - // 3.2.4: Backfill active embedding model option for the warning UI
1213 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1214 - if (version_compare($current_version, '3.2.4', '<')) {
1215 - mxchat_backfill_active_embedding_model();
1216 - }
1217 -
719 +
1218 720 // Run full activation to ensure everything is up to date
1219 721 mxchat_activate();
1220 722
1221 723 // Run migration functions
@@ -1347,59 +849,31 @@
1347 849 function mxchat_handle_live_agent_update() {
1348 850 // Get the CURRENT stored version (before it gets updated)
1349 851 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1350 852 $new_version = '2.2.2';
1351 -
853 +
1352 854 // Only run this once for the update to 2.2.2
1353 855 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1354 -
856 +
1355 857 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1356 858 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1357 859 $options = get_option('mxchat_options', array());
1358 -
860 +
1359 861 // Check if live agent was previously enabled
1360 862 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1361 863 // Disable live agent
1362 864 $options['live_agent_status'] = 'off';
1363 865 update_option('mxchat_options', $options);
1364 -
866 +
1365 867 // Set flag to show the notification banner
1366 868 update_option('mxchat_show_live_agent_disabled_notice', true);
1367 869 }
1368 -
870 +
1369 871 // Mark this update as handled
1370 872 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1371 873 }
1372 874 }
1373 875
1374 -/**
1375 - * Handle theme migration notice for version 3.0.1
1376 - * Shows a dismissible notice to Pro users about migrating AI-generated themes
1377 - */
1378 -function mxchat_handle_theme_migration_notice() {
1379 - // Get the CURRENT stored version (before it gets updated)
1380 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1381 - $target_version = '3.0.1';
1382 -
1383 - // Only run this once for the update to 3.0.1
1384 - $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
1385 -
1386 - // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1387 - if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1388 - // Check if Pro is activated - only show to Pro users
1389 - $license_status = get_option('mxchat_license_status', 'inactive');
1390 - $is_pro = ($license_status === 'active');
1391 -
1392 - if ($is_pro) {
1393 - // Set flag to show the theme migration notification banner
1394 - update_option('mxchat_show_theme_migration_notice', true);
1395 - }
1396 -
1397 - // Mark this update as handled (whether Pro or not)
1398 - update_option('mxchat_theme_migration_update_3_0_1_handled', true);
1399 - }
1400 -}
1401 -
1402 876 // Initialize plugin safely
1403 877 function mxchat_init() {
1404 878 // Include all class files first
1405 879 mxchat_include_classes();
@@ -1431,25 +905,10 @@
1431 905 // Initialize meta box class
1432 906 if (class_exists('MxChat_Meta_Box')) {
1433 907 new MxChat_Meta_Box();
1434 908 }
1435 -
1436 909 }
1437 -
1438 - // Initialize content generator globally — it registers wp_head hook
1439 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1440 - if (class_exists('MxChat_Content_Generator')) {
1441 - new MxChat_Content_Generator();
1442 - }
1443 -
1444 - // Initialize REST API globally — endpoints must be registered on
1445 - // every request (admin and frontend) so they're reachable via /wp-json/.
1446 - // Endpoints are auth-gated and locked until the site owner generates
1447 - // a token in MxChat → API Access.
1448 - if (class_exists('MxChat_Rest_Api')) {
1449 - new MxChat_Rest_Api();
1450 - }
1451 -
910 +
1452 911 // Initialize public classes
1453 912 if (class_exists('MxChat_Public')) {
1454 913 $mxchat_public = new MxChat_Public();
1455 914 }
@@ -1493,57 +952,10 @@
1493 952 $checked = true;
1494 953
1495 954 mxchat_migrate_pinecone_roles_add_bot_id();
1496 955 mxchat_migrate_add_content_type_column();
1497 - mxchat_migrate_add_translations_table();
1498 - mxchat_migrate_add_session_ratings_table();
1499 956 }
1500 957
1501 -/**
1502 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1503 - * For users upgrading from versions before 3.2.6
1504 - */
1505 -function mxchat_migrate_add_session_ratings_table() {
1506 - $migration_key = 'mxchat_session_ratings_table_created';
1507 - if (get_option($migration_key)) {
1508 - return;
1509 - }
1510 - mxchat_create_session_ratings_table();
1511 - update_option($migration_key, '3.2.6');
1512 -}
1513 -
1514 -/**
1515 - * Migration: Create transcript translations table (v3.0.4)
1516 - * For users upgrading from versions before 3.0.4
1517 - */
1518 -function mxchat_migrate_add_translations_table() {
1519 - $migration_key = 'mxchat_translations_table_created';
1520 -
1521 - // Check if migration already ran
1522 - if (get_option($migration_key)) {
1523 - return;
1524 - }
1525 -
1526 - // Create the translations table
1527 - mxchat_create_translations_table();
1528 -
1529 - // Mark migration as complete
1530 - update_option($migration_key, '3.0.4');
1531 -}
1532 -
1533 -/**
1534 - * Migration: Update deprecated Gemini embedding model (v3.0.5)
1535 - * Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected
1536 - */
1537 -function mxchat_migrate_gemini_embedding_model() {
1538 - $options = get_option('mxchat_options', array());
1539 -
1540 - if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') {
1541 - $options['embedding_model'] = 'gemini-embedding-001';
1542 - update_option('mxchat_options', $options);
1543 - }
1544 -}
1545 -
1546 958 // Register activation hook
1547 959 register_activation_hook(__FILE__, 'mxchat_activate');
1548 960
1549 961 // Add cron schedule
@@ -1555,67 +967,5 @@
1555 967 return $schedules;
1556 968 });
1557 969
1558 970 // Register deactivation hook
1559 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1560 -
1561 -/**
1562 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1563 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1564 - * session_id makes this naturally idempotent — only the first rating per
1565 - * session is stored; duplicate POSTs are silent no-ops.
1566 - */
1567 -function mxchat_save_session_rating() {
1568 - global $wpdb;
1569 -
1570 - $session_id = isset($_POST['session_id']) ? sanitize_text_field(wp_unslash($_POST['session_id'])) : '';
1571 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1572 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1573 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1574 -
1575 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1576 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1577 - }
1578 -
1579 - if (strlen($feedback) > 1000) {
1580 - $feedback = substr($feedback, 0, 1000);
1581 - }
1582 -
1583 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1584 - $existing = $wpdb->get_var($wpdb->prepare(
1585 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1586 - $session_id
1587 - ));
1588 -
1589 - if ($existing) {
1590 - if ($feedback !== '') {
1591 - $wpdb->update(
1592 - $table_name,
1593 - array('rating_feedback' => $feedback),
1594 - array('id' => (int) $existing),
1595 - array('%s'),
1596 - array('%d')
1597 - );
1598 - }
1599 - wp_send_json_success(array('updated' => true));
1600 - }
1601 -
1602 - $inserted = $wpdb->insert(
1603 - $table_name,
1604 - array(
1605 - 'session_id' => $session_id,
1606 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1607 - 'rating_value' => $rating_raw,
1608 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1609 - 'created_at' => current_time('mysql'),
1610 - ),
1611 - array('%s', '%s', '%d', '%s', '%s')
1612 - );
1613 -
1614 - if ($inserted === false) {
1615 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1616 - }
1617 -
1618 - wp_send_json_success(array('saved' => true));
1619 -}
1620 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1621 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
971 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');