PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / 2.3.9
MxChat – AI Chatbot & Content Generation for WordPress v2.3.9
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← All changes | mxchat-basic.php +73 -1232 3.2.152.3.9 View file →
@@ -1,10 +1,9 @@
1 1 <?php
2 2 /**
3 3 * Plugin Name: MxChat
4 - * Plugin URI: https://mxchat.ai/
5 4 * Description: AI chatbot for WordPress with OpenAI, Claude, xAI, DeepSeek, live agent, PDF uploads, WooCommerce, and training on website data.
6 - * Version: 3.2.15
5 + * Version: 2.3.9
7 6 * Author: MxChat
8 7 * Author URI: https://mxchat.ai
9 8 * License: GPLv2 or later
10 9 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
@@ -15,405 +14,19 @@
15 14 if (!defined('ABSPATH')) {
16 15 exit; // Exit if accessed directly.
17 16 }
18 17
18 +// Define plugin version constant for asset versioning
19 +define('MXCHAT_VERSION', '2.3.9');
19 20
20 -if (!defined('MXCHAT_DEV_MODE')) {
21 - define('MXCHAT_DEV_MODE', false);
22 -}
23 -
24 -if (!defined('MXCHAT_VERSION')) {
25 - $plugin_data = get_file_data(__FILE__, array('Version' => 'Version'), 'plugin');
26 - $version = $plugin_data['Version'];
27 - // MXCHAT_BASE_VERSION: the plain header version, stable across requests even in
28 - // dev mode. Use it for anything PERSISTED or COMPARED (the stored
29 - // mxchat_plugin_version option and the migration gate in
30 - // mxchat_check_for_update). MXCHAT_VERSION keeps the time() suffix in dev for
31 - // ASSET cache-busting only — persisting the suffixed value made the version
32 - // comparison churn every request, re-running the full activation/migration
33 - // suite per page load on dev installs.
34 - define('MXCHAT_BASE_VERSION', $version);
35 - if (MXCHAT_DEV_MODE) {
36 - $version .= '.' . time();
37 - }
38 - define('MXCHAT_VERSION', $version);
39 -}
40 -
41 -/**
42 - * Honest, versioned User-Agent for MXChat remote-content ingestion fetches
43 - * (Knowledge Base PDF import, URL import, sitemap / website crawl).
44 - *
45 - * WAF rulesets (SiteGround/ModSecurity, Wordfence, Cloudflare managed rules)
46 - * flag stale spoofed-browser UAs as scrapers and return 403 — which silently
47 - * broke the single most common KB source: self-hosted media on the site's own
48 - * domain. A truthful crawler identifier is the industry norm for well-behaved
49 - * bots and lets a site owner allowlist "MXChatBot" in their WAF. Filterable so
50 - * a locked-down host can supply a different string without a code change.
51 - */
52 -if (!function_exists('mxchat_ingest_user_agent')) {
53 - function mxchat_ingest_user_agent() {
54 - $version = defined('MXCHAT_VERSION') ? MXCHAT_VERSION : '1.0';
55 - $ua = 'MXChatBot/' . $version . ' (+https://mxchat.ai/bot)';
56 - return apply_filters('mxchat_ingest_user_agent', $ua);
57 - }
58 -}
59 -
60 21 function mxchat_load_textdomain() {
61 - $domain = 'mxchat';
62 - $locale = determine_locale();
63 -
64 - // First, try to load from /wp-content/languages/plugins/ (preserved during updates)
65 - $mo_file = WP_LANG_DIR . '/plugins/' . $domain . '-' . $locale . '.mo';
66 - if (file_exists($mo_file)) {
67 - load_textdomain($domain, $mo_file);
68 - return;
69 - }
70 -
71 - // Fallback to plugin's /languages directory
72 - load_plugin_textdomain($domain, false, dirname(plugin_basename(__FILE__)) . '/languages');
22 + load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages');
73 23 }
74 -add_action('init', 'mxchat_load_textdomain');
24 +add_action('plugins_loaded', 'mxchat_load_textdomain');
75 25
76 -/**
77 - * One-time migration: gemini-3-pro-preview was shut down by Google on March 9, 2026.
78 - * Existing installs with the dead ID get auto-remapped to gemini-3.1-pro-preview
79 - * (Google's official migration target) the first time admin_init fires after update.
80 - */
81 -add_action('admin_init', function () {
82 - if (get_option('mxchat_gemini_3_remap_done')) {
83 - return;
84 - }
85 - $opts = get_option('mxchat_options');
86 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'gemini-3-pro-preview') {
87 - $opts['model'] = 'gemini-3.1-pro-preview';
88 - update_option('mxchat_options', $opts);
89 - }
90 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'gemini-3-pro-preview') {
91 - $opts['content_model'] = 'gemini-3.1-pro-preview';
92 - update_option('mxchat_options', $opts);
93 - }
94 - update_option('mxchat_gemini_3_remap_done', 1);
95 -});
96 -
97 -/**
98 - * One-time migration: the Grok 2 family was retired by xAI (grok-2, grok-2-1212,
99 - * grok-2-latest, grok-2-vision-1212 all return 400 "Model not found"). Existing
100 - * installs with the dead ID get auto-remapped to grok-4-1-fast-non-reasoning
101 - * (modern, fast, broadly available) the first time admin_init fires after update.
102 - */
103 -add_action('admin_init', function () {
104 - if (get_option('mxchat_grok_2_remap_done')) {
105 - return;
106 - }
107 - $opts = get_option('mxchat_options');
108 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'grok-2') {
109 - $opts['model'] = 'grok-4-1-fast-non-reasoning';
110 - update_option('mxchat_options', $opts);
111 - }
112 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'grok-2') {
113 - $opts['content_model'] = 'grok-4-1-fast-non-reasoning';
114 - update_option('mxchat_options', $opts);
115 - }
116 - update_option('mxchat_grok_2_remap_done', 1);
117 -});
118 -
119 -/**
120 - * One-time migration: Anthropic retired the Claude 4 (2025-05-14) snapshots on
121 - * June 15, 2026 — claude-opus-4-20250514 and claude-sonnet-4-20250514 now return
122 - * an API error. Existing installs with a dead ID get auto-remapped to the current
123 - * equivalents Anthropic recommends (Opus 4.8 / Sonnet 4.6) the first time admin_init
124 - * fires after update. Mirrors the gemini-3-pro-preview / grok-2 rescues above.
125 - */
126 -add_action('admin_init', function () {
127 - if (get_option('mxchat_claude_4_retire_remap_done')) {
128 - return;
129 - }
130 - $map = array(
131 - 'claude-opus-4-20250514' => 'claude-opus-4-8',
132 - 'claude-sonnet-4-20250514' => 'claude-sonnet-4-6',
133 - );
134 - $opts = get_option('mxchat_options');
135 - if (is_array($opts)) {
136 - $changed = false;
137 - if (isset($opts['model']) && isset($map[$opts['model']])) {
138 - $opts['model'] = $map[$opts['model']];
139 - $changed = true;
140 - }
141 - if (isset($opts['content_model']) && isset($map[$opts['content_model']])) {
142 - $opts['content_model'] = $map[$opts['content_model']];
143 - $changed = true;
144 - }
145 - if ($changed) {
146 - update_option('mxchat_options', $opts);
147 - }
148 - }
149 - update_option('mxchat_claude_4_retire_remap_done', 1);
150 -});
151 -
152 -/**
153 - * Exclude MxChat assets from caching plugin optimizations
154 - *
155 - * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache,
156 - * W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by
157 - * removing "unused" CSS, minifying/combining JS, or deferring/delaying jQuery.
158 - *
159 - * Both chat-script.js and floating-script.js depend on jQuery, so jQuery must also
160 - * be excluded from any optimization that changes load order or timing.
161 - */
162 -
163 -// ── WP Rocket ────────────────────────────────────────────────────────────────
164 -
165 -// Exclude from Remove Unused CSS (RUCSS)
166 -add_filter('rocket_rucss_inline_atts_exclusions', function($exclusions) {
167 - if (!is_array($exclusions)) $exclusions = array();
168 - $exclusions[] = 'mxchat';
169 - return $exclusions;
170 -});
171 -
172 -// Exclude CSS from minification/combination
173 -add_filter('rocket_exclude_css', function($excluded) {
174 - if (!is_array($excluded)) $excluded = array();
175 - $excluded[] = '/plugins/mxchat-basic/css/chat-style.css';
176 - return $excluded;
177 -});
178 -
179 -// Exclude JS from minification/combination
180 -add_filter('rocket_exclude_js', function($excluded) {
181 - if (!is_array($excluded)) $excluded = array();
182 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
183 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
184 - $excluded[] = '/jquery-core';
185 - $excluded[] = '/jquery.min.js';
186 - $excluded[] = '/jquery.js';
187 - $excluded[] = '/jquery-migrate';
188 - return $excluded;
189 -});
190 -
191 -// Exclude JS from defer
192 -add_filter('rocket_exclude_defer_js', function($excluded) {
193 - if (!is_array($excluded)) $excluded = array();
194 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
195 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
196 - $excluded[] = '/jquery-core';
197 - $excluded[] = '/jquery.min.js';
198 - $excluded[] = '/jquery.js';
199 - $excluded[] = '/jquery-migrate';
200 - return $excluded;
201 -});
202 -
203 -// Exclude from delay JS execution
204 -add_filter('rocket_delay_js_exclusions', function($excluded) {
205 - if (!is_array($excluded)) $excluded = array();
206 - $excluded[] = 'mxchat';
207 - $excluded[] = 'chat-script';
208 - $excluded[] = 'floating-script';
209 - $excluded[] = '/jquery-core';
210 - $excluded[] = '/jquery.min.js';
211 - $excluded[] = '/jquery.js';
212 - $excluded[] = '/jquery-migrate';
213 - return $excluded;
214 -});
215 -
216 -// ── LiteSpeed Cache ──────────────────────────────────────────────────────────
217 -
218 -// Exclude CSS from optimization
219 -add_filter('litespeed_optimize_css_excludes', function($excluded) {
220 - if (!is_array($excluded)) $excluded = array();
221 - $excluded[] = 'chat-style.css';
222 - $excluded[] = 'mxchat';
223 - return $excluded;
224 -});
225 -
226 -// Exclude from UCSS (Unique CSS) - prevents LiteSpeed from stripping "unused" MxChat CSS
227 -add_filter('litespeed_ucss_whitelist', function($whitelist) {
228 - if (!is_array($whitelist)) $whitelist = array();
229 - $whitelist[] = '.mxchat-chatbot-wrapper';
230 - $whitelist[] = '.floating-chatbot';
231 - $whitelist[] = '.floating-chatbot-button';
232 - $whitelist[] = '.chatbot-top-bar';
233 - $whitelist[] = '.mxchat-chatbot';
234 - $whitelist[] = '.chat-container';
235 - $whitelist[] = '.chat-box';
236 - $whitelist[] = '.bot-message';
237 - $whitelist[] = '.input-container';
238 - $whitelist[] = '.chat-input';
239 - $whitelist[] = '.send-button';
240 - $whitelist[] = '.pre-chat-message';
241 - $whitelist[] = '.mxchat-popular-questions';
242 - $whitelist[] = '.chat-toolbar';
243 - $whitelist[] = '.exit-chat';
244 - $whitelist[] = '.email-blocker';
245 - return $whitelist;
246 -});
247 -
248 -// Exclude CSS from CCSS (Critical CSS) generation
249 -add_filter('litespeed_optm_ccss_exc', function($excluded) {
250 - if (!is_array($excluded)) $excluded = array();
251 - $excluded[] = 'chat-style.css';
252 - $excluded[] = 'mxchat';
253 - return $excluded;
254 -});
255 -
256 -// Exclude JS from defer
257 -add_filter('litespeed_optm_js_defer_exc', function($excluded) {
258 - if (!is_array($excluded)) $excluded = array();
259 - $excluded[] = 'chat-script.js';
260 - $excluded[] = 'floating-script.js';
261 - $excluded[] = 'mxchat';
262 - $excluded[] = 'jquery.min.js';
263 - $excluded[] = 'jquery.js';
264 - return $excluded;
265 -});
266 -
267 -// Exclude JS from combining
268 -add_filter('litespeed_optm_js_exc', function($excluded) {
269 - if (!is_array($excluded)) $excluded = array();
270 - $excluded[] = 'chat-script.js';
271 - $excluded[] = 'floating-script.js';
272 - $excluded[] = 'mxchat';
273 - $excluded[] = 'jquery.min.js';
274 - $excluded[] = 'jquery.js';
275 - return $excluded;
276 -});
277 -
278 -// Exclude JS from delayed execution
279 -add_filter('litespeed_optm_js_delay_exc', function($excluded) {
280 - if (!is_array($excluded)) $excluded = array();
281 - $excluded[] = 'chat-script.js';
282 - $excluded[] = 'floating-script.js';
283 - $excluded[] = 'mxchat';
284 - return $excluded;
285 -});
286 -
287 -// Exclude from Guest Mode optimization
288 -add_filter('litespeed_guest_optm_exc', function($excluded) {
289 - if (!is_array($excluded)) $excluded = array();
290 - $excluded[] = 'mxchat';
291 - $excluded[] = 'chat-style';
292 - $excluded[] = 'chat-script';
293 - $excluded[] = 'floating-script';
294 - return $excluded;
295 -});
296 -
297 -// ── Autoptimize ──────────────────────────────────────────────────────────────
298 -
299 -// Exclude CSS from optimization (comma-separated strings)
300 -add_filter('autoptimize_filter_css_exclude', function($excluded) {
301 - if (!is_string($excluded)) $excluded = '';
302 - return $excluded . ', mxchat, chat-style.css';
303 -});
304 -
305 -// Exclude JS from optimization (comma-separated strings)
306 -add_filter('autoptimize_filter_js_exclude', function($excluded) {
307 - if (!is_string($excluded)) $excluded = '';
308 - return $excluded . ', mxchat, chat-script.js, floating-script.js, jquery.min.js, jquery.js';
309 -});
310 -
311 -// ── SG Optimizer (SiteGround) ────────────────────────────────────────────────
312 -
313 -add_filter('sgo_js_minify_exclude', function($excluded) {
314 - if (!is_array($excluded)) $excluded = array();
315 - $excluded[] = 'chat-script.js';
316 - $excluded[] = 'floating-script.js';
317 - $excluded[] = 'jquery.min.js';
318 - return $excluded;
319 -});
320 -
321 -add_filter('sgo_javascript_combine_exclude', function($excluded) {
322 - if (!is_array($excluded)) $excluded = array();
323 - $excluded[] = 'chat-script.js';
324 - $excluded[] = 'floating-script.js';
325 - $excluded[] = 'jquery.min.js';
326 - return $excluded;
327 -});
328 -
329 -add_filter('sgo_js_async_exclude', function($excluded) {
330 - if (!is_array($excluded)) $excluded = array();
331 - $excluded[] = 'chat-script.js';
332 - $excluded[] = 'floating-script.js';
333 - $excluded[] = 'jquery.min.js';
334 - return $excluded;
335 -});
336 -
337 -// ── W3 Total Cache ───────────────────────────────────────────────────────────
338 -
339 -add_filter('w3tc_minify_js_do_tag_minification', function($do_minify, $script_tag, $file) {
340 - if (strpos($file, 'chat-script.js') !== false ||
341 - strpos($file, 'floating-script.js') !== false ||
342 - strpos($file, 'jquery.min.js') !== false ||
343 - strpos($file, 'jquery.js') !== false) {
344 - return false;
345 - }
346 - return $do_minify;
347 -}, 10, 3);
348 -
349 -// ── WP Super Cache ──────────────────────────────────────────────────────────
350 -
351 -add_filter('wpsc_rejected_uri', function($rejected) {
352 - if (!is_array($rejected)) $rejected = array();
353 - $rejected[] = 'wp-admin/admin-ajax.php';
354 - return $rejected;
355 -});
356 -
357 -// ── Page-cache bypass for chat AJAX (companion to the 3.2.6 nonce-race hotfix)
358 -// Each cache plugin gets its own filter export so that visitors hitting an
359 -// edge-cached page never receive cached chat-AJAX responses. The chat send /
360 -// stream send / file upload all POST to /wp-admin/admin-ajax.php with
361 -// `action=mxchat_*`. Without these exports, a cache plugin can stale a response
362 -// and break the per-session nonce flow on the first message.
363 -
364 -// WP Rocket — `rocket_cache_reject_uri` takes a flat array of regex strings.
365 -add_filter('rocket_cache_reject_uri', function($uris) {
366 - if (!is_array($uris)) $uris = array();
367 - $uris[] = '/wp-admin/admin-ajax\.php\?action=mxchat_.*';
368 - return $uris;
369 -});
370 -
371 -// LiteSpeed Cache — `litespeed_cache_no_cache_for_request` short-circuits
372 -// caching when the request matches our chat-AJAX pattern.
373 -add_filter('litespeed_cache_no_cache_for_request', function($no_cache) {
374 - if ($no_cache) return $no_cache;
375 - if (!empty($_SERVER['REQUEST_URI']) &&
376 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
377 - !empty($_REQUEST['action']) &&
378 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
379 - return true;
380 - }
381 - return $no_cache;
382 -});
383 -
384 -// W3 Total Cache — `w3tc_pgcache_request_skip_uri` flips page-cache off when
385 -// the URI matches.
386 -add_filter('w3tc_pgcache_request_skip_uri', function($skip) {
387 - if ($skip) return $skip;
388 - if (!empty($_SERVER['REQUEST_URI']) &&
389 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
390 - !empty($_REQUEST['action']) &&
391 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
392 - return true;
393 - }
394 - return $skip;
395 -});
396 -
397 -// FlyingPress — `flying_press_cacheable` takes a boolean and is run per
398 -// request. Same pattern as LiteSpeed / W3TC.
399 -add_filter('flying_press_cacheable', function($cacheable) {
400 - if (!$cacheable) return $cacheable;
401 - if (!empty($_SERVER['REQUEST_URI']) &&
402 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
403 - !empty($_REQUEST['action']) &&
404 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
405 - return false;
406 - }
407 - return $cacheable;
408 -});
409 -
410 26 // Include classes with error handling
411 27 function mxchat_include_classes() {
412 28 $class_files = array(
413 - 'includes/class-mxchat-model-catalog.php',
414 - 'includes/class-mxchat-live-agent-schedule.php',
415 - 'includes/class-mxchat-tool-registry.php',
416 29 'includes/class-mxchat-integrator.php',
417 30 'includes/class-mxchat-admin.php',
418 31 'includes/class-mxchat-public.php',
419 32 'includes/class-mxchat-utils.php',
@@ -418,14 +31,10 @@
418 31 'includes/class-mxchat-public.php',
419 32 'includes/class-mxchat-utils.php',
420 33 'includes/class-mxchat-user.php',
421 34 'includes/class-mxchat-meta-box.php',
422 - 'includes/class-mxchat-chunker.php',
35 + 'includes/pdf-parser/alt_autoload.php',
423 36 'includes/class-mxchat-word-handler.php',
424 - 'includes/class-mxchat-content-generator.php',
425 - 'includes/class-mxchat-cache-purge.php',
426 - 'includes/class-mxchat-editor-assistant.php',
427 - 'includes/class-rest-api.php',
428 37 'admin/class-ajax-handler.php',
429 38 'admin/class-pinecone-manager.php',
430 39 'admin/class-knowledge-manager.php'
431 40 );
@@ -437,57 +46,11 @@
437 46 } else {
438 47 //error_log('MxChat: Missing class file - ' . $file);
439 48 }
440 49 }
441 -
442 - // Register the native function-calling admin-post save handler (a41dee).
443 - if (class_exists('MxChat_Tool_Registry')) {
444 - MxChat_Tool_Registry::init();
445 - }
446 -
447 - // Editor Assistant — free, OFF-by-default block-editor AI actions (plan-8cb0cb).
448 - // init() wires REST + streaming AJAX + sidebar enqueue ONLY when the
449 - // mxchat_editor_assistant_enabled option is 'on'; otherwise zero footprint.
450 - if (class_exists('MxChat_Editor_Assistant')) {
451 - MxChat_Editor_Assistant::init();
452 - }
453 -
454 - // Admin pages that aren't classes (procedural include).
455 - if (is_admin()) {
456 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
457 - if (file_exists($admin_api_page)) {
458 - require_once $admin_api_page;
459 - }
460 - // f7c7d4 renamed this file admin-dashboard-page.php → admin-onboarding-page.php.
461 - // The require MUST live here (admin bootstrap) and not just inside
462 - // mxchat_add_plugin_page() on the admin_menu hook — admin_menu does NOT
463 - // fire on admin-ajax.php requests, so the wizard's AJAX handlers
464 - // (plan-905439: mxchat_onboarding_kb_status / save_step / mark_step /
465 - // auto_graduate + the f7c7d4 dismiss handler) would never register.
466 - $admin_onboarding_page = plugin_dir_path(__FILE__) . 'includes/admin-onboarding-page.php';
467 - if (file_exists($admin_onboarding_page)) {
468 - require_once $admin_onboarding_page;
469 - }
470 - }
471 50 }
472 51
473 52 /**
474 - * Lazy-load the PDF parser library only when needed.
475 - * Avoids loading 44 files on every page request.
476 - */
477 -function mxchat_load_pdf_parser() {
478 - if (class_exists('\Smalot\PdfParser\Parser')) {
479 - return true;
480 - }
481 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
482 - if (file_exists($autoload_path)) {
483 - require_once $autoload_path;
484 - return true;
485 - }
486 - return false;
487 -}
488 -
489 -/**
490 53 * Create URL click tracking table
491 54 */
492 55 function mxchat_create_url_clicks_table() {
493 56 global $wpdb;
@@ -570,13 +133,12 @@
570 133
571 134 // Define all required columns and their types
572 135 $required_columns = [
573 136 'user_identifier' => 'VARCHAR(255) DEFAULT NULL',
574 - 'user_email' => 'VARCHAR(255) DEFAULT NULL',
137 + 'user_email' => 'VARCHAR(255) DEFAULT NULL',
575 138 'user_name' => 'VARCHAR(100) DEFAULT NULL',
576 139 'originating_page_url' => 'TEXT DEFAULT NULL',
577 - 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL',
578 - 'rag_context' => 'LONGTEXT DEFAULT NULL'
140 + 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL'
579 141 ];
580 142
581 143 // Get existing columns
582 144 $existing_columns = $wpdb->get_results("SHOW COLUMNS FROM $table_name");
@@ -647,416 +209,31 @@
647 209 }
648 210 }
649 211
650 212 /**
651 - * Add enabled_bots column to intents table for multi-bot action filtering
213 + * Create Pinecone role restrictions table
652 214 */
653 -function mxchat_add_enabled_bots_column() {
215 +function mxchat_create_pinecone_roles_table() {
654 216 global $wpdb;
655 - $table_name = $wpdb->prefix . 'mxchat_intents';
656 217
657 - // Check if table exists first
658 - $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
659 - if (!$table_exists) {
660 - //error_log("MxChat: Intents table does not exist, cannot add enabled_bots column");
661 - return;
662 - }
663 -
664 - // Check if column already exists
665 - $column_exists = $wpdb->get_results(
666 - $wpdb->prepare(
667 - "SHOW COLUMNS FROM {$table_name} LIKE %s",
668 - 'enabled_bots'
669 - )
670 - );
671 -
672 - if (empty($column_exists)) {
673 - $alter_sql = "ALTER TABLE {$table_name} ADD COLUMN enabled_bots LONGTEXT DEFAULT NULL AFTER enabled";
674 - $result = $wpdb->query($alter_sql);
675 -
676 - if ($result === false) {
677 - //error_log("MxChat: Failed to add enabled_bots column. Error: " . $wpdb->last_error);
678 - } else {
679 - //error_log("MxChat: Successfully added enabled_bots column");
680 -
681 - // Set all existing actions to work with 'default' bot for backward compatibility
682 - $default_bots = json_encode(['default']);
683 - $update_result = $wpdb->query(
684 - $wpdb->prepare(
685 - "UPDATE {$table_name}
686 - SET enabled_bots = %s
687 - WHERE enabled_bots IS NULL OR enabled_bots = ''",
688 - $default_bots
689 - )
690 - );
691 -
692 - if ($update_result !== false) {
693 - //error_log("MxChat: Updated {$update_result} existing actions to work with default bot");
694 - }
695 - }
696 - }
697 -}
698 -
699 -/**
700 - * Create Pinecone role restrictions table with multi-bot support
701 - */
702 -function mxchat_create_pinecone_roles_table() {
703 - global $wpdb;
704 -
705 218 $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
706 219 $charset_collate = $wpdb->get_charset_collate();
707 -
220 +
708 221 $sql = "CREATE TABLE $table_name (
709 222 id mediumint(9) NOT NULL AUTO_INCREMENT,
710 223 vector_id varchar(255) NOT NULL,
711 - bot_id varchar(50) NOT NULL DEFAULT 'default',
712 224 source_url text,
713 225 role_restriction varchar(50) DEFAULT 'public',
714 226 updated_at timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
715 227 PRIMARY KEY (id),
716 - UNIQUE KEY vector_bot (vector_id, bot_id),
717 - KEY role_restriction (role_restriction),
718 - KEY bot_id (bot_id)
228 + UNIQUE KEY vector_id (vector_id),
229 + KEY role_restriction (role_restriction)
719 230 ) $charset_collate;";
720 -
721 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
722 - dbDelta($sql);
723 -}
724 -
725 -/**
726 - * Add bot_id column to mxchat_pinecone_roles table for multi-bot support
727 - * This migration runs once to update existing installations
728 - */
729 -function mxchat_migrate_pinecone_roles_add_bot_id() {
730 - global $wpdb;
731 -
732 - // Check if migration already ran
733 - $migration_version = get_option('mxchat_pinecone_roles_migration_version', '0');
734 - if (version_compare($migration_version, '2.5.2', '>=')) {
735 - return; // Already migrated
736 - }
737 -
738 - $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
739 -
740 - // Check if table exists
741 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
742 - return; // Table doesn't exist yet
743 - }
744 -
745 - // Check if bot_id column already exists
746 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'bot_id'");
747 -
748 - if (empty($column_exists)) {
749 - // Add bot_id column
750 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN bot_id VARCHAR(50) NOT NULL DEFAULT 'default' AFTER vector_id");
751 -
752 - // Update the unique key to include bot_id
753 - $wpdb->query("ALTER TABLE {$table_name} DROP INDEX vector_id");
754 - $wpdb->query("ALTER TABLE {$table_name} ADD UNIQUE KEY vector_bot (vector_id, bot_id)");
755 -
756 - // Add index for bot_id
757 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
758 -
759 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
760 - }
761 -
762 - // Mark migration as complete
763 - update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
764 -}
765 -
766 -/**
767 - * 2.5.6: Add content_type column to mxchat_system_prompt_content table
768 - * Enables filtering knowledge base by content type (posts, pages, PDFs, etc.)
769 - */
770 -function mxchat_migrate_add_content_type_column() {
771 - global $wpdb;
772 -
773 - // Check if migration already ran
774 - $migration_version = get_option('mxchat_content_type_migration_version', '0');
775 - if (version_compare($migration_version, '2.5.6', '>=')) {
776 - return;
777 - }
778 -
779 - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
780 -
781 - // Check if table exists
782 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
783 - return;
784 - }
785 -
786 - // Check if content_type column already exists
787 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'content_type'");
788 -
789 - if (empty($column_exists)) {
790 - // Add content_type column with default value 'content' for backwards compatibility
791 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN content_type VARCHAR(50) DEFAULT 'content' AFTER role_restriction");
792 -
793 - // Add index for better query performance
794 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
795 -
796 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
797 - }
798 -
799 - // Mark migration as complete
800 - update_option('mxchat_content_type_migration_version', '2.5.6');
801 -}
802 -
803 -/**
804 - * 3.2.4: Backfill the active embedding model option for installs that already
805 - * have KB content but no stamped model. The mismatch warning compares this
806 - * against the user's currently selected model — no per-row column needed.
807 - */
808 -function mxchat_backfill_active_embedding_model() {
809 - global $wpdb;
810 -
811 - if (get_option('mxchat_active_embedding_model', '') !== '') {
812 - return;
813 - }
814 -
815 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
816 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
817 - return;
818 - }
819 -
820 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
821 - if ($kb_count > 0) {
822 - $options = get_option('mxchat_options', array());
823 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
824 - update_option('mxchat_active_embedding_model', $current_model, false);
825 - }
826 -}
827 -
828 -/**
829 - * 2.5.2: Create queue processing tables for reliable background processing
830 - */
831 -function mxchat_create_queue_tables() {
832 - global $wpdb;
833 - $charset_collate = $wpdb->get_charset_collate();
834 231
835 - // Main queue table
836 - $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
837 - $sql_queue = "CREATE TABLE $queue_table (
838 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
839 - queue_id varchar(64) NOT NULL,
840 - item_type varchar(20) NOT NULL,
841 - item_data longtext NOT NULL,
842 - status varchar(20) NOT NULL DEFAULT 'pending',
843 - bot_id varchar(50) NOT NULL DEFAULT 'default',
844 - priority int(11) NOT NULL DEFAULT 0,
845 - attempts int(11) NOT NULL DEFAULT 0,
846 - max_attempts int(11) NOT NULL DEFAULT 3,
847 - error_message text DEFAULT NULL,
848 - created_at datetime NOT NULL,
849 - started_at datetime DEFAULT NULL,
850 - completed_at datetime DEFAULT NULL,
851 - PRIMARY KEY (id),
852 - KEY queue_id (queue_id),
853 - KEY status (status),
854 - KEY item_type (item_type),
855 - KEY priority (priority)
856 - ) $charset_collate;";
857 -
858 - // Queue metadata table
859 - $meta_table = $wpdb->prefix . 'mxchat_queue_meta';
860 - $sql_meta = "CREATE TABLE $meta_table (
861 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
862 - queue_id varchar(64) NOT NULL,
863 - meta_key varchar(255) NOT NULL,
864 - meta_value longtext,
865 - PRIMARY KEY (id),
866 - KEY queue_id (queue_id),
867 - KEY meta_key (meta_key)
868 - ) $charset_collate;";
869 -
870 232 require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
871 - dbDelta($sql_queue);
872 - dbDelta($sql_meta);
873 -
874 - //error_log("MxChat: Queue tables created/updated successfully");
875 -}
876 -
877 -/**
878 - * Create transcript translations table for persisting translations
879 - */
880 -function mxchat_create_translations_table() {
881 - global $wpdb;
882 - $charset_collate = $wpdb->get_charset_collate();
883 -
884 - $table_name = $wpdb->prefix . 'mxchat_transcript_translations';
885 - $sql = "CREATE TABLE $table_name (
886 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
887 - session_id varchar(255) NOT NULL,
888 - language_code varchar(10) NOT NULL,
889 - translations longtext NOT NULL,
890 - created_at datetime NOT NULL,
891 - updated_at datetime NOT NULL,
892 - PRIMARY KEY (id),
893 - UNIQUE KEY session_lang (session_id, language_code),
894 - KEY session_id (session_id)
895 - ) $charset_collate;";
896 -
897 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
898 233 dbDelta($sql);
899 234 }
900 235
901 -/**
902 - * Create per-session satisfaction ratings table (v3.2.6)
903 - * Stores one 👍/👎 rating + optional feedback per chat session.
904 - */
905 -function mxchat_create_session_ratings_table() {
906 - global $wpdb;
907 - $charset_collate = $wpdb->get_charset_collate();
908 -
909 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
910 - $sql = "CREATE TABLE $table_name (
911 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
912 - session_id varchar(255) NOT NULL,
913 - bot_id varchar(50) NOT NULL DEFAULT 'default',
914 - rating_value tinyint(1) NOT NULL,
915 - rating_feedback text DEFAULT NULL,
916 - created_at datetime NOT NULL,
917 - PRIMARY KEY (id),
918 - UNIQUE KEY session_id (session_id),
919 - KEY bot_id (bot_id),
920 - KEY created_at (created_at)
921 - ) $charset_collate;";
922 -
923 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
924 - dbDelta($sql);
925 -}
926 -
927 -/**
928 - * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
929 - * This fixes "url, source_url. The supplied values may be too long" errors
930 - */
931 -function mxchat_fix_url_column_size() {
932 - global $wpdb;
933 - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
934 -
935 - // Check if table exists
936 - $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
937 - if (!$table_exists) {
938 - return;
939 - }
940 -
941 - // Change url and source_url from VARCHAR to TEXT to handle long URLs
942 - // This is especially important for URLs with UTF-8 encoded characters (Hebrew, Arabic, etc.)
943 - $wpdb->query("ALTER TABLE {$table_name} MODIFY COLUMN url TEXT");
944 - $wpdb->query("ALTER TABLE {$table_name} MODIFY COLUMN source_url TEXT");
945 -
946 - //error_log("MxChat: Successfully updated url and source_url columns to TEXT type for long URL support");
947 -}
948 -
949 -/**
950 - * Migrate deprecated AI models to their replacements
951 - * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
952 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
953 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
954 - */
955 -function mxchat_migrate_transcripts_charset() {
956 - global $wpdb;
957 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
958 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
959 -}
960 -
961 -/**
962 - * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
963 - */
964 -function mxchat_migrate_deprecated_models() {
965 - $options = get_option('mxchat_options', array());
966 - $migrated = false;
967 - $migration_message = '';
968 -
969 - if (!isset($options['model'])) {
970 - return;
971 - }
972 -
973 - $current_model = $options['model'];
974 -
975 - // Migrate deprecated Claude models to Claude Opus 4.6 (recommended replacement per Anthropic)
976 - $deprecated_claude_models = array(
977 - 'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025
978 - 'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025
979 - 'claude-3-7-sonnet-20250219', // Retiring Feb 19, 2026
980 - 'claude-3-opus-20240229', // Retired Jan 5, 2026
981 - 'claude-3-sonnet-20240229', // Legacy
982 - 'claude-3-haiku-20240307', // Legacy
983 - );
984 - if (in_array($current_model, $deprecated_claude_models, true)) {
985 - $options['model'] = 'claude-opus-4-6';
986 - $migrated = true;
987 - $migration_message = sprintf(
988 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
989 - $current_model
990 - );
991 - }
992 -
993 - // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
994 - if ($current_model === 'claude-3-5-haiku-20241022') {
995 - $options['model'] = 'claude-haiku-4-5-20251001';
996 - $migrated = true;
997 - $migration_message = 'Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.';
998 - }
999 -
1000 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest
1001 - if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
1002 - $options['model'] = 'gpt-5.1-chat-latest';
1003 - $migrated = true;
1004 - $migration_message = sprintf(
1005 - 'Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.',
1006 - $current_model
1007 - );
1008 - }
1009 -
1010 - // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
1011 - if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
1012 - $options['model'] = 'gpt-5-mini';
1013 - $migrated = true;
1014 - $migration_message = sprintf(
1015 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
1016 - $current_model
1017 - );
1018 - }
1019 -
1020 - // Migrate retired DeepSeek ids to DeepSeek V4 Flash — the vendor removed
1021 - // deepseek-chat and deepseek-reasoner on 2026-07-24 (hard cutoff, every
1022 - // request 400s). V4 Flash is DeepSeek's designated successor for the
1023 - // legacy deepseek-chat alias.
1024 - if (in_array($current_model, array('deepseek-chat', 'deepseek-reasoner'), true)) {
1025 - $options['model'] = 'deepseek-v4-flash';
1026 - $migrated = true;
1027 - $migration_message = sprintf(
1028 - 'Your chatbot model has been automatically updated from %s to DeepSeek V4 Flash because DeepSeek retired its older API models on July 24, 2026.',
1029 - $current_model
1030 - );
1031 - }
1032 -
1033 - if ($migrated) {
1034 - update_option('mxchat_options', $options);
1035 - update_option('mxchat_model_migrated_notice', true);
1036 - update_option('mxchat_model_migration_message', $migration_message);
1037 - }
1038 -}
1039 -
1040 -/**
1041 - * Show admin notice after model migration
1042 - */
1043 -function mxchat_show_migration_notice() {
1044 - if (get_option('mxchat_model_migrated_notice')) {
1045 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
1046 - ?>
1047 - <div class="notice notice-info is-dismissible">
1048 - <p>
1049 - <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
1050 - <?php echo esc_html($migration_message); ?>
1051 - </p>
1052 - </div>
1053 - <?php
1054 - delete_option('mxchat_model_migrated_notice');
1055 - delete_option('mxchat_model_migration_message');
1056 - }
1057 -}
1058 -
1059 236 function mxchat_activate() {
1060 237 global $wpdb;
1061 238 $charset_collate = $wpdb->get_charset_collate();
1062 239
@@ -1064,24 +241,22 @@
1064 241
1065 242 // Create chat transcripts table with improved function
1066 243 mxchat_create_chat_transcripts_table();
1067 244
1068 - // System Prompt Content Table - UPDATED: Use TEXT for url and source_url columns
245 + // System Prompt Content Table
1069 246 $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
1070 247 $sql_system_prompt = "CREATE TABLE $system_prompt_table (
1071 248 id MEDIUMINT(9) NOT NULL AUTO_INCREMENT,
1072 - url TEXT NOT NULL,
249 + url VARCHAR(255) NOT NULL,
1073 250 article_content LONGTEXT NOT NULL,
1074 251 embedding_vector LONGTEXT,
1075 - source_url TEXT DEFAULT NULL,
252 + source_url VARCHAR(255) DEFAULT NULL,
1076 253 role_restriction VARCHAR(50) DEFAULT 'public',
1077 - content_type VARCHAR(50) DEFAULT 'content',
1078 254 timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1079 - PRIMARY KEY (id),
1080 - KEY content_type (content_type)
255 + PRIMARY KEY (id)
1081 256 ) $charset_collate;";
1082 257
1083 - // Intents Table - NOW INCLUDES enabled_bots column from the start
258 + // Intents Table
1084 259 $intents_table = $wpdb->prefix . 'mxchat_intents';
1085 260 $sql_intents_table = "CREATE TABLE $intents_table (
1086 261 id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1087 262 intent_label VARCHAR(255) NOT NULL,
@@ -1089,46 +264,23 @@
1089 264 embedding_vector LONGTEXT NOT NULL,
1090 265 callback_function VARCHAR(255) NOT NULL,
1091 266 similarity_threshold FLOAT DEFAULT 0.85,
1092 267 enabled TINYINT(1) NOT NULL DEFAULT 1,
1093 - enabled_bots LONGTEXT DEFAULT NULL,
1094 268 PRIMARY KEY (id)
1095 269 ) $charset_collate;";
1096 270
1097 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
1098 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
1099 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
1100 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1101 - intent_id BIGINT(20) UNSIGNED NOT NULL,
1102 - phrase TEXT NOT NULL,
1103 - embedding_vector LONGTEXT NOT NULL,
1104 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1105 - PRIMARY KEY (id),
1106 - KEY intent_id (intent_id)
1107 - ) $charset_collate;";
1108 -
1109 271 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1110 272
1111 273 // Create other tables
1112 274 dbDelta($sql_system_prompt);
1113 275 dbDelta($sql_intents_table);
1114 - dbDelta($sql_intent_phrases_table);
1115 276
1116 277 // Create URL click tracking table
1117 278 mxchat_create_url_clicks_table();
1118 279
1119 - // Create Pinecone roles table
280 + //Create Pinecone roles table
1120 281 mxchat_create_pinecone_roles_table();
1121 -
1122 - // NEW 2.5.2: Create queue processing tables
1123 - mxchat_create_queue_tables();
1124 282
1125 - // Create transcript translations table
1126 - mxchat_create_translations_table();
1127 -
1128 - // Create per-session satisfaction ratings table (v3.2.6)
1129 - mxchat_create_session_ratings_table();
1130 -
1131 283 // Ensure additional columns in system prompt table
1132 284 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1133 285 if (!empty($existing_system_columns)) {
1134 286 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1136,9 +288,9 @@
1136 288 if (!in_array('embedding_vector', $existing_system_column_names)) {
1137 289 $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN embedding_vector LONGTEXT");
1138 290 }
1139 291 if (!in_array('source_url', $existing_system_column_names)) {
1140 - $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN source_url TEXT DEFAULT NULL");
292 + $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN source_url VARCHAR(255) DEFAULT NULL");
1141 293 }
1142 294 if (!in_array('role_restriction', $existing_system_column_names)) {
1143 295 $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN role_restriction VARCHAR(50) DEFAULT 'public' AFTER source_url");
1144 296 }
@@ -1154,38 +306,18 @@
1154 306
1155 307 if (!in_array('enabled', $existing_intent_column_names)) {
1156 308 $wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled TINYINT(1) NOT NULL DEFAULT 1");
1157 309 }
1158 -
1159 - // Ensure enabled_bots column exists for existing installations
1160 - if (!in_array('enabled_bots', $existing_intent_column_names)) {
1161 - $wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled_bots LONGTEXT DEFAULT NULL AFTER enabled");
1162 -
1163 - // Set existing actions to work with default bot
1164 - $default_bots = json_encode(['default']);
1165 - $wpdb->query($wpdb->prepare(
1166 - "UPDATE {$intents_table} SET enabled_bots = %s WHERE enabled_bots IS NULL",
1167 - $default_bots
1168 - ));
1169 - }
1170 310 }
1171 311
1172 - // Run migration for existing installations
1173 - mxchat_migrate_pinecone_roles_add_bot_id();
1174 -
1175 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1176 - mxchat_backfill_active_embedding_model();
1177 -
1178 312 // Setup cron jobs
1179 313 mxchat_setup_cron_jobs();
1180 314
1181 - // Update version (stable base version — never the dev time()-suffixed one,
1182 - // or the check_for_update comparison would churn every request)
1183 - update_option('mxchat_plugin_version', MXCHAT_BASE_VERSION);
1184 -
315 + // Update version
316 + update_option('mxchat_plugin_version', MXCHAT_VERSION);
317 +
1185 318 //error_log("MxChat: Activation function completed");
1186 319 }
1187 -
1188 320 /**
1189 321 * Setup cron jobs on plugin activation
1190 322 */
1191 323 function mxchat_setup_cron_jobs() {
@@ -1196,42 +328,22 @@
1196 328 if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
1197 329 // Set flag to use fallback system
1198 330 update_option('mxchat_use_fallback_rate_limits', true);
1199 331 update_option('mxchat_next_rate_limit_check', time() + 3600);
1200 - // Deliberately NO early return (plan-bc08a6): transcript cleanup below
1201 - // must still be scheduled. DISABLE_WP_CRON only changes HOW cron events
1202 - // execute (a server-side runner hitting wp-cron.php instead of loopback
1203 - // spawns) — scheduling still just writes the cron option. The old early
1204 - // return here meant a deactivate/reactivate cycle on a DISABLE_WP_CRON
1205 - // site permanently lost the transcript cleanup event while the retention
1206 - // setting still claimed to be active.
332 + return;
333 + }
334 +
335 + // Schedule the rate limit reset cron job
336 + $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
337 +
338 + if ($result === false) {
339 + // Fallback if scheduling fails
340 + update_option('mxchat_use_fallback_rate_limits', true);
341 + update_option('mxchat_next_rate_limit_check', time() + 3600);
1207 342 } else {
1208 - // Schedule the rate limit reset cron job
1209 - $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
1210 -
1211 - if ($result === false) {
1212 - // Fallback if scheduling fails
1213 - update_option('mxchat_use_fallback_rate_limits', true);
1214 - update_option('mxchat_next_rate_limit_check', time() + 3600);
1215 - } else {
1216 - // Clear fallback flags if cron scheduling succeeded
1217 - delete_option('mxchat_use_fallback_rate_limits');
1218 - }
343 + // Clear fallback flags if cron scheduling succeeded
344 + delete_option('mxchat_use_fallback_rate_limits');
1219 345 }
1220 -
1221 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
1222 - $transcript_options = get_option('mxchat_transcripts_options', array());
1223 - $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1224 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1225 -
1226 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
1227 - // Check if not already scheduled
1228 - if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1229 - // Schedule to run daily at 3 AM
1230 - $next_run = strtotime('tomorrow 3:00 AM');
1231 - wp_schedule_event($next_run, 'daily', 'mxchat_cleanup_old_transcripts');
1232 - }
1233 - }
1234 346 }
1235 347
1236 348 /**
1237 349 * Clean up on plugin deactivation
@@ -1238,18 +350,13 @@
1238 350 */
1239 351 function mxchat_deactivate() {
1240 352 // Clear scheduled cron jobs
1241 353 wp_clear_scheduled_hook('mxchat_reset_rate_limits');
1242 - wp_clear_scheduled_hook('mxchat_cleanup_old_transcripts');
1243 - wp_clear_scheduled_hook('mxchat_send_delayed_transcript');
1244 354
1245 355 // Clear fallback options
1246 356 delete_option('mxchat_use_fallback_rate_limits');
1247 357 delete_option('mxchat_next_rate_limit_check');
1248 358 delete_option('mxchat_fallback_check_interval');
1249 -
1250 - // NOTE: We do NOT delete queue tables on deactivation
1251 - // This preserves data if user accidentally deactivates the plugin
1252 359 }
1253 360
1254 361 /**
1255 362 * Check if fallback rate limit cleanup is needed
@@ -1261,127 +368,44 @@
1261 368 return;
1262 369 }
1263 370
1264 371 $next_check = get_option('mxchat_next_rate_limit_check', 0);
1265 -
372 +
1266 373 if (time() >= $next_check) {
1267 - // Reuse the bootstrap's integrator — mxchat_init() creates the global on
1268 - // plugins_loaded (before this init-priority-5 callback), so it's always set
1269 - // here. Constructing a second MxChat_Integrator just to call one method
1270 - // re-registers every hook the plugin has (ajax pairs, wp_footer loader,
1271 - // rest_api_init, admin_init guard) on a duplicate instance for the rest of
1272 - // the request. Defensive construction only if the global is somehow unset.
1273 - // NOTE: MxChat_Integrator::check_fallback_rate_limits() is a second
1274 - // implementation of this same check — if either changes, change both.
1275 - global $mxchat_integrator;
1276 - $integrator = ($mxchat_integrator instanceof MxChat_Integrator)
1277 - ? $mxchat_integrator
1278 - : (class_exists('MxChat_Integrator') ? new MxChat_Integrator() : null);
1279 - if ($integrator && method_exists($integrator, 'mxchat_reset_rate_limits')) {
1280 - $integrator->mxchat_reset_rate_limits();
1281 - update_option('mxchat_next_rate_limit_check', time() + 3600);
374 + // Only run reset if the MxChat_Integrator class exists
375 + if (class_exists('MxChat_Integrator')) {
376 + $integrator = new MxChat_Integrator();
377 + if (method_exists($integrator, 'mxchat_reset_rate_limits')) {
378 + $integrator->mxchat_reset_rate_limits();
379 + update_option('mxchat_next_rate_limit_check', time() + 3600);
380 + }
1282 381 }
1283 382 }
1284 383 }
1285 384
1286 385 /**
1287 - * Robust update checking with role restriction migration, model deprecation, and queue tables
1288 - * CRITICAL: This runs on EVERY page load to ensure tables exist
386 + * Robust update checking with role restriction migration
1289 387 */
1290 388 function mxchat_check_for_update() {
1291 - global $wpdb;
389 + global $wpdb; // CRITICAL: Declare this at the top
1292 390
1293 391 try {
1294 392 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1295 - $plugin_version = MXCHAT_BASE_VERSION;
393 + $plugin_version = MXCHAT_VERSION;
1296 394
1297 - // Always ensure critical tables exist (even if version matches)
1298 - // This handles manual table deletion or fresh installs
1299 - $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1300 - $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
1301 -
1302 - $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$chat_table'") === $chat_table;
1303 - $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
1304 -
1305 - if (!$chat_exists || !$queue_exists) {
1306 - //error_log("MxChat: Critical tables missing, running activation");
1307 - mxchat_activate();
1308 - }
1309 -
1310 - // Version-specific migrations
395 + // Always run activation to ensure tables exist (safe for existing installations)
1311 396 if ($current_version !== $plugin_version) {
1312 397 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1313 -
398 +
1314 399 // Run live agent update BEFORE updating the stored version
1315 400 mxchat_handle_live_agent_update();
1316 -
1317 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1318 - mxchat_handle_theme_migration_notice();
1319 401
1320 - // Run role restriction migration for 2.4.1
1321 - if (version_compare($current_version, '2.4.1', '<')) {
402 + //Run role restriction migration for 2.3.9
403 + if (version_compare($current_version, '2.3.9', '<')) {
1322 404 mxchat_add_role_restriction_column();
1323 405 }
1324 406
1325 - // Run enabled_bots column migration for 2.4.4
1326 - if (version_compare($current_version, '2.4.4', '<')) {
1327 - mxchat_add_enabled_bots_column();
1328 - }
1329 -
1330 - // Run model migration for 2.5.1 (Claude deprecation)
1331 - if (version_compare($current_version, '2.5.1', '<')) {
1332 - mxchat_migrate_deprecated_models();
1333 - }
1334 -
1335 - // 2.5.2: Ensure queue tables exist and fix URL column sizes for all users upgrading to 2.5.2
1336 - if (version_compare($current_version, '2.5.2', '<')) {
1337 - mxchat_create_queue_tables();
1338 - mxchat_fix_url_column_size(); // NEW: Fix URL column size for long URLs
1339 - //error_log("MxChat: Queue tables created and URL columns updated for upgrade to 2.5.2");
1340 - }
1341 -
1342 - // 2.6.0: Ensure rag_context column exists for retrieved documents feature
1343 - if (version_compare($current_version, '2.6.0', '<')) {
1344 - $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1345 - mxchat_ensure_all_columns($chat_table);
1346 - //error_log("MxChat: rag_context column migration for 2.6.0");
1347 - }
1348 -
1349 - // 3.0.5: Migrate deprecated Gemini embedding model
1350 - if (version_compare($current_version, '3.0.5', '<')) {
1351 - mxchat_migrate_gemini_embedding_model();
1352 - }
1353 -
1354 - // 3.0.6: Migrate deprecated OpenAI and Claude models
1355 - if (version_compare($current_version, '3.0.6', '<')) {
1356 - mxchat_migrate_deprecated_models();
1357 - }
1358 -
1359 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1360 - if (version_compare($current_version, '3.1.2', '<')) {
1361 - mxchat_migrate_transcripts_charset();
1362 - }
1363 -
1364 - // 3.1.7: Clean up stale shared session email/name entries
1365 - if (version_compare($current_version, '3.1.7', '<')) {
1366 - delete_option('mxchat_email_null');
1367 - delete_option('mxchat_name_null');
1368 - }
1369 -
1370 - // 3.2.4: Backfill active embedding model option for the warning UI
1371 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1372 - if (version_compare($current_version, '3.2.4', '<')) {
1373 - mxchat_backfill_active_embedding_model();
1374 - }
1375 -
1376 - // 3.2.15: Migrate retired DeepSeek ids (deepseek-chat / deepseek-reasoner
1377 - // were shut off at the vendor on 2026-07-24). The function is idempotent —
1378 - // it only rewrites models on its deprecation lists.
1379 - if (version_compare($current_version, '3.2.15', '<')) {
1380 - mxchat_migrate_deprecated_models();
1381 - }
1382 -
1383 - // Run full activation to ensure everything is up to date
407 + // Run activation (this will create/update all tables and columns)
1384 408 mxchat_activate();
1385 409
1386 410 // Run migration functions
1387 411 mxchat_migrate_live_agent_status();
@@ -1396,8 +420,18 @@
1396 420
1397 421 //error_log("MxChat: Updated from version $current_version to $plugin_version");
1398 422 }
1399 423
424 + // CRITICAL: Always ensure tables exist, even if version matches
425 + // This handles cases where tables were manually deleted
426 + $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
427 + $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
428 +
429 + if (!$table_exists) {
430 + //error_log("MxChat: Chat transcripts table missing, recreating...");
431 + mxchat_activate(); // Run full activation instead of just table creation
432 + }
433 +
1400 434 } catch (Exception $e) {
1401 435 //error_log('MxChat update error: ' . $e->getMessage());
1402 436 // Don't update version if there was an error
1403 437 }
@@ -1403,10 +437,9 @@
1403 437 }
1404 438 }
1405 439
1406 440 /**
1407 - * Ensure tables exist on every admin load for fresh installations
1408 - * This is a safety net for cases where activation hook doesn't fire
441 + * Ensure tables exist on every load for fresh installations
1409 442 */
1410 443 function mxchat_ensure_tables_exist() {
1411 444 global $wpdb;
1412 445
@@ -1414,22 +447,12 @@
1414 447 if (!current_user_can('administrator')) {
1415 448 return;
1416 449 }
1417 450
1418 - // Check if we've already verified tables in this session
1419 - static $tables_checked = false;
1420 - if ($tables_checked) {
1421 - return;
1422 - }
1423 - $tables_checked = true;
1424 -
1425 451 $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
1426 - $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
452 + $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
1427 453
1428 - $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
1429 - $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
1430 -
1431 - if (!$chat_exists || !$queue_exists) {
454 + if (!$table_exists) {
1432 455 //error_log("MxChat: Tables missing on admin load, running activation");
1433 456 mxchat_activate();
1434 457 }
1435 458 }
@@ -1512,76 +535,45 @@
1512 535 function mxchat_handle_live_agent_update() {
1513 536 // Get the CURRENT stored version (before it gets updated)
1514 537 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1515 538 $new_version = '2.2.2';
1516 -
539 +
1517 540 // Only run this once for the update to 2.2.2
1518 541 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1519 -
542 +
1520 543 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1521 544 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1522 545 $options = get_option('mxchat_options', array());
1523 -
546 +
1524 547 // Check if live agent was previously enabled
1525 548 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1526 549 // Disable live agent
1527 550 $options['live_agent_status'] = 'off';
1528 551 update_option('mxchat_options', $options);
1529 -
552 +
1530 553 // Set flag to show the notification banner
1531 554 update_option('mxchat_show_live_agent_disabled_notice', true);
1532 555 }
1533 -
556 +
1534 557 // Mark this update as handled
1535 558 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1536 559 }
1537 560 }
1538 561
1539 -/**
1540 - * Handle theme migration notice for version 3.0.1
1541 - * Shows a dismissible notice to Pro users about migrating AI-generated themes
1542 - */
1543 -function mxchat_handle_theme_migration_notice() {
1544 - // Get the CURRENT stored version (before it gets updated)
1545 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1546 - $target_version = '3.0.1';
1547 -
1548 - // Only run this once for the update to 3.0.1
1549 - $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
1550 -
1551 - // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1552 - if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1553 - // Check if Pro is activated - only show to Pro users
1554 - $license_status = get_option('mxchat_license_status', 'inactive');
1555 - $is_pro = ($license_status === 'active');
1556 -
1557 - if ($is_pro) {
1558 - // Set flag to show the theme migration notification banner
1559 - update_option('mxchat_show_theme_migration_notice', true);
1560 - }
1561 -
1562 - // Mark this update as handled (whether Pro or not)
1563 - update_option('mxchat_theme_migration_update_3_0_1_handled', true);
1564 - }
1565 -}
1566 -
1567 562 // Initialize plugin safely
1568 563 function mxchat_init() {
1569 564 // Include all class files first
1570 565 mxchat_include_classes();
1571 566
1572 - // Run update check (this also ensures tables exist)
567 + // Run update check
1573 568 mxchat_check_for_update();
1574 569
1575 - // CRITICAL: Ensure tables exist on admin pages (safety net)
570 + // CRITICAL: Ensure tables exist (for fresh installations that don't trigger activation hook)
1576 571 add_action('admin_init', 'mxchat_ensure_tables_exist', 1);
1577 572
1578 573 // Add fallback rate limit check
1579 574 add_action('init', 'mxchat_check_fallback_rate_limits', 5);
1580 575
1581 - // Add migration notice hook
1582 - add_action('admin_notices', 'mxchat_show_migration_notice');
1583 -
1584 576 // Initialize classes with error handling
1585 577 try {
1586 578 // Initialize admin classes
1587 579 if (is_admin()) {
@@ -1596,32 +588,10 @@
1596 588 // Initialize meta box class
1597 589 if (class_exists('MxChat_Meta_Box')) {
1598 590 new MxChat_Meta_Box();
1599 591 }
1600 -
1601 592 }
1602 -
1603 - // Initialize content generator globally — it registers wp_head hook
1604 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1605 - if (class_exists('MxChat_Content_Generator')) {
1606 - new MxChat_Content_Generator();
1607 - }
1608 -
1609 - // Initialize cache purge globally — settings writes can happen on any
1610 - // request type (admin screens, admin-ajax autosave, wp-cli), and the
1611 - // deferred-purge cron event fires on front-end requests.
1612 - if (class_exists('MxChat_Cache_Purge')) {
1613 - MxChat_Cache_Purge::init();
1614 - }
1615 -
1616 - // Initialize REST API globally — endpoints must be registered on
1617 - // every request (admin and frontend) so they're reachable via /wp-json/.
1618 - // Endpoints are auth-gated and locked until the site owner generates
1619 - // a token in MxChat → API Access.
1620 - if (class_exists('MxChat_Rest_Api')) {
1621 - new MxChat_Rest_Api();
1622 - }
1623 -
593 +
1624 594 // Initialize public classes
1625 595 if (class_exists('MxChat_Public')) {
1626 596 $mxchat_public = new MxChat_Public();
1627 597 }
@@ -1626,9 +596,8 @@
1626 596 $mxchat_public = new MxChat_Public();
1627 597 }
1628 598
1629 599 if (class_exists('MxChat_Integrator')) {
1630 - global $mxchat_integrator;
1631 600 $mxchat_integrator = new MxChat_Integrator();
1632 601 }
1633 602
1634 603 } catch (Exception $e) {
@@ -1648,74 +617,8 @@
1648 617
1649 618 // Run initialization on plugins_loaded
1650 619 add_action('plugins_loaded', 'mxchat_init');
1651 620
1652 -// Run migration check on admin init (for auto-updates without reactivation)
1653 -add_action('admin_init', 'mxchat_check_and_run_migrations');
1654 -
1655 -/**
1656 - * Check and run migrations on admin init
1657 - * This ensures migrations run even when plugin is auto-updated
1658 - */
1659 -function mxchat_check_and_run_migrations() {
1660 - // Only run in admin and not on every request
1661 - static $checked = false;
1662 - if ($checked) {
1663 - return;
1664 - }
1665 - $checked = true;
1666 -
1667 - mxchat_migrate_pinecone_roles_add_bot_id();
1668 - mxchat_migrate_add_content_type_column();
1669 - mxchat_migrate_add_translations_table();
1670 - mxchat_migrate_add_session_ratings_table();
1671 -}
1672 -
1673 -/**
1674 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1675 - * For users upgrading from versions before 3.2.6
1676 - */
1677 -function mxchat_migrate_add_session_ratings_table() {
1678 - $migration_key = 'mxchat_session_ratings_table_created';
1679 - if (get_option($migration_key)) {
1680 - return;
1681 - }
1682 - mxchat_create_session_ratings_table();
1683 - update_option($migration_key, '3.2.6');
1684 -}
1685 -
1686 -/**
1687 - * Migration: Create transcript translations table (v3.0.4)
1688 - * For users upgrading from versions before 3.0.4
1689 - */
1690 -function mxchat_migrate_add_translations_table() {
1691 - $migration_key = 'mxchat_translations_table_created';
1692 -
1693 - // Check if migration already ran
1694 - if (get_option($migration_key)) {
1695 - return;
1696 - }
1697 -
1698 - // Create the translations table
1699 - mxchat_create_translations_table();
1700 -
1701 - // Mark migration as complete
1702 - update_option($migration_key, '3.0.4');
1703 -}
1704 -
1705 -/**
1706 - * Migration: Update deprecated Gemini embedding model (v3.0.5)
1707 - * Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected
1708 - */
1709 -function mxchat_migrate_gemini_embedding_model() {
1710 - $options = get_option('mxchat_options', array());
1711 -
1712 - if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') {
1713 - $options['embedding_model'] = 'gemini-embedding-001';
1714 - update_option('mxchat_options', $options);
1715 - }
1716 -}
1717 -
1718 621 // Register activation hook
1719 622 register_activation_hook(__FILE__, 'mxchat_activate');
1720 623
1721 624 // Add cron schedule
@@ -1727,67 +630,5 @@
1727 630 return $schedules;
1728 631 });
1729 632
1730 633 // Register deactivation hook
1731 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1732 -
1733 -/**
1734 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1735 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1736 - * session_id makes this naturally idempotent — only the first rating per
1737 - * session is stored; duplicate POSTs are silent no-ops.
1738 - */
1739 -function mxchat_save_session_rating() {
1740 - global $wpdb;
1741 -
1742 - $session_id = isset($_POST['session_id']) ? sanitize_text_field(wp_unslash($_POST['session_id'])) : '';
1743 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1744 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1745 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1746 -
1747 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1748 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1749 - }
1750 -
1751 - if (strlen($feedback) > 1000) {
1752 - $feedback = substr($feedback, 0, 1000);
1753 - }
1754 -
1755 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1756 - $existing = $wpdb->get_var($wpdb->prepare(
1757 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1758 - $session_id
1759 - ));
1760 -
1761 - if ($existing) {
1762 - if ($feedback !== '') {
1763 - $wpdb->update(
1764 - $table_name,
1765 - array('rating_feedback' => $feedback),
1766 - array('id' => (int) $existing),
1767 - array('%s'),
1768 - array('%d')
1769 - );
1770 - }
1771 - wp_send_json_success(array('updated' => true));
1772 - }
1773 -
1774 - $inserted = $wpdb->insert(
1775 - $table_name,
1776 - array(
1777 - 'session_id' => $session_id,
1778 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1779 - 'rating_value' => $rating_raw,
1780 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1781 - 'created_at' => current_time('mysql'),
1782 - ),
1783 - array('%s', '%s', '%d', '%s', '%s')
1784 - );
1785 -
1786 - if ($inserted === false) {
1787 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1788 - }
1789 -
1790 - wp_send_json_success(array('saved' => true));
1791 -}
1792 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1793 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
634 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');