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MxChat – AI Chatbot & Content Generation for WordPress / 2.5.5
MxChat – AI Chatbot & Content Generation for WordPress v2.5.5
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 +35 -804 3.2.62.5.5 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: 2.5.5
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");
@@ -566,137 +263,32 @@
566 263 }
567 264 }
568 265
569 266 /**
570 - * Create Pinecone role restrictions table with multi-bot support
267 + * Create Pinecone role restrictions table
571 268 */
572 269 function mxchat_create_pinecone_roles_table() {
573 270 global $wpdb;
574 -
271 +
575 272 $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
576 273 $charset_collate = $wpdb->get_charset_collate();
577 -
274 +
578 275 $sql = "CREATE TABLE $table_name (
579 276 id mediumint(9) NOT NULL AUTO_INCREMENT,
580 277 vector_id varchar(255) NOT NULL,
581 - bot_id varchar(50) NOT NULL DEFAULT 'default',
582 278 source_url text,
583 279 role_restriction varchar(50) DEFAULT 'public',
584 280 updated_at timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
585 281 PRIMARY KEY (id),
586 - UNIQUE KEY vector_bot (vector_id, bot_id),
587 - KEY role_restriction (role_restriction),
588 - KEY bot_id (bot_id)
282 + UNIQUE KEY vector_id (vector_id),
283 + KEY role_restriction (role_restriction)
589 284 ) $charset_collate;";
590 -
285 +
591 286 require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
592 287 dbDelta($sql);
593 288 }
594 289
595 290 /**
596 - * Add bot_id column to mxchat_pinecone_roles table for multi-bot support
597 - * This migration runs once to update existing installations
598 - */
599 -function mxchat_migrate_pinecone_roles_add_bot_id() {
600 - global $wpdb;
601 -
602 - // Check if migration already ran
603 - $migration_version = get_option('mxchat_pinecone_roles_migration_version', '0');
604 - if (version_compare($migration_version, '2.5.2', '>=')) {
605 - return; // Already migrated
606 - }
607 -
608 - $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
609 -
610 - // Check if table exists
611 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
612 - return; // Table doesn't exist yet
613 - }
614 -
615 - // Check if bot_id column already exists
616 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'bot_id'");
617 -
618 - if (empty($column_exists)) {
619 - // Add bot_id column
620 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN bot_id VARCHAR(50) NOT NULL DEFAULT 'default' AFTER vector_id");
621 -
622 - // Update the unique key to include bot_id
623 - $wpdb->query("ALTER TABLE {$table_name} DROP INDEX vector_id");
624 - $wpdb->query("ALTER TABLE {$table_name} ADD UNIQUE KEY vector_bot (vector_id, bot_id)");
625 -
626 - // Add index for bot_id
627 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
628 -
629 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
630 - }
631 -
632 - // Mark migration as complete
633 - update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
634 -}
635 -
636 -/**
637 - * 2.5.6: Add content_type column to mxchat_system_prompt_content table
638 - * Enables filtering knowledge base by content type (posts, pages, PDFs, etc.)
639 - */
640 -function mxchat_migrate_add_content_type_column() {
641 - global $wpdb;
642 -
643 - // Check if migration already ran
644 - $migration_version = get_option('mxchat_content_type_migration_version', '0');
645 - if (version_compare($migration_version, '2.5.6', '>=')) {
646 - return;
647 - }
648 -
649 - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
650 -
651 - // Check if table exists
652 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
653 - return;
654 - }
655 -
656 - // Check if content_type column already exists
657 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'content_type'");
658 -
659 - if (empty($column_exists)) {
660 - // Add content_type column with default value 'content' for backwards compatibility
661 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN content_type VARCHAR(50) DEFAULT 'content' AFTER role_restriction");
662 -
663 - // Add index for better query performance
664 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
665 -
666 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
667 - }
668 -
669 - // Mark migration as complete
670 - update_option('mxchat_content_type_migration_version', '2.5.6');
671 -}
672 -
673 -/**
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 -/**
699 291 * 2.5.2: Create queue processing tables for reliable background processing
700 292 */
701 293 function mxchat_create_queue_tables() {
702 294 global $wpdb;
@@ -744,58 +336,8 @@
744 336 //error_log("MxChat: Queue tables created/updated successfully");
745 337 }
746 338
747 339 /**
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 -/**
798 340 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
799 341 * This fixes "url, source_url. The supplied values may be too long" errors
800 342 */
801 343 function mxchat_fix_url_column_size() {
@@ -818,80 +360,22 @@
818 360
819 361 /**
820 362 * Migrate deprecated AI models to their replacements
821 363 * 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.
824 364 */
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 - */
834 365 function mxchat_migrate_deprecated_models() {
835 366 $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) {
367 +
368 + // Check if model is set and is the deprecated Claude 3.5 Sonnet
369 + if (isset($options['model']) && $options['model'] === 'claude-3-5-sonnet-20241022') {
370 + // Update to Claude 3.7 Sonnet (the replacement model)
371 + $options['model'] = 'claude-3-7-sonnet-20250219';
891 372 update_option('mxchat_options', $options);
373 +
374 + // Set a flag to show admin notice
892 375 update_option('mxchat_model_migrated_notice', true);
893 - update_option('mxchat_model_migration_message', $migration_message);
376 +
377 + //error_log('MxChat: Migrated deprecated Claude 3.5 Sonnet to Claude 3.7 Sonnet');
894 378 }
895 379 }
896 380
897 381 /**
@@ -898,19 +382,17 @@
898 382 * Show admin notice after model migration
899 383 */
900 384 function mxchat_show_migration_notice() {
901 385 if (get_option('mxchat_model_migrated_notice')) {
902 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
903 386 ?>
904 387 <div class="notice notice-info is-dismissible">
905 388 <p>
906 389 <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
907 - <?php echo esc_html($migration_message); ?>
390 + <?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'); ?>
908 391 </p>
909 392 </div>
910 393 <?php
911 394 delete_option('mxchat_model_migrated_notice');
912 - delete_option('mxchat_model_migration_message');
913 395 }
914 396 }
915 397
916 398 function mxchat_activate() {
@@ -930,12 +412,10 @@
930 412 article_content LONGTEXT NOT NULL,
931 413 embedding_vector LONGTEXT,
932 414 source_url TEXT DEFAULT NULL,
933 415 role_restriction VARCHAR(50) DEFAULT 'public',
934 - content_type VARCHAR(50) DEFAULT 'content',
935 416 timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
936 - PRIMARY KEY (id),
937 - KEY content_type (content_type)
417 + PRIMARY KEY (id)
938 418 ) $charset_collate;";
939 419
940 420 // Intents Table - NOW INCLUDES enabled_bots column from the start
941 421 $intents_table = $wpdb->prefix . 'mxchat_intents';
@@ -950,26 +430,13 @@
950 430 enabled_bots LONGTEXT DEFAULT NULL,
951 431 PRIMARY KEY (id)
952 432 ) $charset_collate;";
953 433
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 - ) $charset_collate;";
965 -
966 434 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
967 435
968 436 // Create other tables
969 437 dbDelta($sql_system_prompt);
970 438 dbDelta($sql_intents_table);
971 - dbDelta($sql_intent_phrases_table);
972 439
973 440 // Create URL click tracking table
974 441 mxchat_create_url_clicks_table();
975 442
@@ -978,14 +445,8 @@
978 445
979 446 // NEW 2.5.2: Create queue processing tables
980 447 mxchat_create_queue_tables();
981 448
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 -
988 449 // Ensure additional columns in system prompt table
989 450 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
990 451 if (!empty($existing_system_columns)) {
991 452 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1025,20 +486,14 @@
1025 486 ));
1026 487 }
1027 488 }
1028 489
1029 - // Run migration for existing installations
1030 - mxchat_migrate_pinecone_roles_add_bot_id();
1031 -
1032 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1033 - mxchat_backfill_active_embedding_model();
1034 -
1035 490 // Setup cron jobs
1036 491 mxchat_setup_cron_jobs();
1037 492
1038 493 // Update version
1039 494 update_option('mxchat_plugin_version', MXCHAT_VERSION);
1040 -
495 +
1041 496 //error_log("MxChat: Activation function completed");
1042 497 }
1043 498
1044 499 /**
@@ -1066,22 +521,8 @@
1066 521 } else {
1067 522 // Clear fallback flags if cron scheduling succeeded
1068 523 delete_option('mxchat_use_fallback_rate_limits');
1069 524 }
1070 -
1071 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
1072 - $transcript_options = get_option('mxchat_transcripts_options', array());
1073 - $cleanup_interval = isset($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) {
1077 - // Check if not already scheduled
1078 - if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1079 - // Schedule to run daily at 3 AM
1080 - $next_run = strtotime('tomorrow 3:00 AM');
1081 - wp_schedule_event($next_run, 'daily', 'mxchat_cleanup_old_transcripts');
1082 - }
1083 - }
1084 525 }
1085 526
1086 527 /**
1087 528 * Clean up on plugin deactivation
@@ -1088,10 +529,8 @@
1088 529 */
1089 530 function mxchat_deactivate() {
1090 531 // Clear scheduled cron jobs
1091 532 wp_clear_scheduled_hook('mxchat_reset_rate_limits');
1092 - wp_clear_scheduled_hook('mxchat_cleanup_old_transcripts');
1093 - wp_clear_scheduled_hook('mxchat_send_delayed_transcript');
1094 533
1095 534 // Clear fallback options
1096 535 delete_option('mxchat_use_fallback_rate_limits');
1097 536 delete_option('mxchat_next_rate_limit_check');
@@ -1151,14 +590,11 @@
1151 590
1152 591 // Version-specific migrations
1153 592 if ($current_version !== $plugin_version) {
1154 593 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1155 -
594 +
1156 595 // Run live agent update BEFORE updating the stored version
1157 596 mxchat_handle_live_agent_update();
1158 -
1159 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1160 - mxchat_handle_theme_migration_notice();
1161 597
1162 598 // Run role restriction migration for 2.4.1
1163 599 if (version_compare($current_version, '2.4.1', '<')) {
1164 600 mxchat_add_role_restriction_column();
@@ -1179,43 +615,9 @@
1179 615 mxchat_create_queue_tables();
1180 616 mxchat_fix_url_column_size(); // NEW: Fix URL column size for long URLs
1181 617 //error_log("MxChat: Queue tables created and URL columns updated for upgrade to 2.5.2");
1182 618 }
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 -
619 +
1218 620 // Run full activation to ensure everything is up to date
1219 621 mxchat_activate();
1220 622
1221 623 // Run migration functions
@@ -1347,59 +749,31 @@
1347 749 function mxchat_handle_live_agent_update() {
1348 750 // Get the CURRENT stored version (before it gets updated)
1349 751 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1350 752 $new_version = '2.2.2';
1351 -
753 +
1352 754 // Only run this once for the update to 2.2.2
1353 755 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1354 -
756 +
1355 757 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1356 758 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1357 759 $options = get_option('mxchat_options', array());
1358 -
760 +
1359 761 // Check if live agent was previously enabled
1360 762 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1361 763 // Disable live agent
1362 764 $options['live_agent_status'] = 'off';
1363 765 update_option('mxchat_options', $options);
1364 -
766 +
1365 767 // Set flag to show the notification banner
1366 768 update_option('mxchat_show_live_agent_disabled_notice', true);
1367 769 }
1368 -
770 +
1369 771 // Mark this update as handled
1370 772 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1371 773 }
1372 774 }
1373 775
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 776 // Initialize plugin safely
1403 777 function mxchat_init() {
1404 778 // Include all class files first
1405 779 mxchat_include_classes();
@@ -1431,25 +805,10 @@
1431 805 // Initialize meta box class
1432 806 if (class_exists('MxChat_Meta_Box')) {
1433 807 new MxChat_Meta_Box();
1434 808 }
1435 -
1436 809 }
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 -
810 +
1452 811 // Initialize public classes
1453 812 if (class_exists('MxChat_Public')) {
1454 813 $mxchat_public = new MxChat_Public();
1455 814 }
@@ -1476,74 +835,8 @@
1476 835
1477 836 // Run initialization on plugins_loaded
1478 837 add_action('plugins_loaded', 'mxchat_init');
1479 838
1480 -// Run migration check on admin init (for auto-updates without reactivation)
1481 -add_action('admin_init', 'mxchat_check_and_run_migrations');
1482 -
1483 -/**
1484 - * Check and run migrations on admin init
1485 - * This ensures migrations run even when plugin is auto-updated
1486 - */
1487 -function mxchat_check_and_run_migrations() {
1488 - // Only run in admin and not on every request
1489 - static $checked = false;
1490 - if ($checked) {
1491 - return;
1492 - }
1493 - $checked = true;
1494 -
1495 - mxchat_migrate_pinecone_roles_add_bot_id();
1496 - mxchat_migrate_add_content_type_column();
1497 - mxchat_migrate_add_translations_table();
1498 - mxchat_migrate_add_session_ratings_table();
1499 -}
1500 -
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 839 // Register activation hook
1547 840 register_activation_hook(__FILE__, 'mxchat_activate');
1548 841
1549 842 // Add cron schedule
@@ -1555,67 +848,5 @@
1555 848 return $schedules;
1556 849 });
1557 850
1558 851 // 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');
852 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');