PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / 2.5.6
MxChat – AI Chatbot & Content Generation for WordPress v2.5.6
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 +56 -1076 3.2.18 → 2.5.6 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: 3.2.18
6 + * Version: 2.5.6
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
@@ -15,419 +15,31 @@
15 15 if (!defined('ABSPATH')) {
16 16 exit; // Exit if accessed directly.
17 17 }
18 18
19 -
20 -if (!defined('MXCHAT_DEV_MODE')) {
21 - define('MXCHAT_DEV_MODE', false);
22 -}
23 -
19 +// Define plugin version constant for asset versioning
20 +// Reads version from plugin header automatically
24 21 if (!defined('MXCHAT_VERSION')) {
25 22 $plugin_data = get_file_data(__FILE__, array('Version' => 'Version'), 'plugin');
26 - $version = $plugin_data['Version'];
27 - // MXCHAT_BASE_VERSION: the plain header version, stable across requests even in
28 - // dev mode. Use it for anything PERSISTED or COMPARED (the stored
29 - // mxchat_plugin_version option and the migration gate in
30 - // mxchat_check_for_update). MXCHAT_VERSION keeps the time() suffix in dev for
31 - // ASSET cache-busting only — persisting the suffixed value made the version
32 - // comparison churn every request, re-running the full activation/migration
33 - // suite per page load on dev installs.
34 - define('MXCHAT_BASE_VERSION', $version);
35 - if (MXCHAT_DEV_MODE) {
36 - $version .= '.' . time();
37 - }
38 - define('MXCHAT_VERSION', $version);
23 + define('MXCHAT_VERSION', $plugin_data['Version']);
39 24 }
40 25
41 -/**
42 - * Honest, versioned User-Agent for MXChat remote-content ingestion fetches
43 - * (Knowledge Base PDF import, URL import, sitemap / website crawl).
44 - *
45 - * WAF rulesets (SiteGround/ModSecurity, Wordfence, Cloudflare managed rules)
46 - * flag stale spoofed-browser UAs as scrapers and return 403 — which silently
47 - * broke the single most common KB source: self-hosted media on the site's own
48 - * domain. A truthful crawler identifier is the industry norm for well-behaved
49 - * bots and lets a site owner allowlist "MXChatBot" in their WAF. Filterable so
50 - * a locked-down host can supply a different string without a code change.
51 - */
52 -if (!function_exists('mxchat_ingest_user_agent')) {
53 - function mxchat_ingest_user_agent() {
54 - $version = defined('MXCHAT_VERSION') ? MXCHAT_VERSION : '1.0';
55 - $ua = 'MXChatBot/' . $version . ' (+https://mxchat.ai/bot)';
56 - return apply_filters('mxchat_ingest_user_agent', $ua);
57 - }
58 -}
59 -
60 26 function mxchat_load_textdomain() {
61 - $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');
27 + load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages');
73 28 }
74 29 add_action('init', 'mxchat_load_textdomain');
75 30
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 31 // Include classes with error handling
411 32 function mxchat_include_classes() {
412 33 $class_files = array(
413 - 'includes/class-mxchat-model-catalog.php',
414 - 'includes/class-mxchat-session-store.php',
415 - 'includes/class-mxchat-live-agent-schedule.php',
416 - 'includes/class-mxchat-tool-registry.php',
417 34 'includes/class-mxchat-integrator.php',
418 35 'includes/class-mxchat-admin.php',
419 36 'includes/class-mxchat-public.php',
420 37 'includes/class-mxchat-utils.php',
421 38 'includes/class-mxchat-user.php',
422 - 'includes/class-mxchat-privacy.php',
423 39 'includes/class-mxchat-meta-box.php',
424 - 'includes/class-mxchat-chunker.php',
40 + 'includes/pdf-parser/alt_autoload.php',
425 41 'includes/class-mxchat-word-handler.php',
426 - 'includes/class-mxchat-content-generator.php',
427 - 'includes/class-mxchat-cache-purge.php',
428 - 'includes/class-mxchat-editor-assistant.php',
429 - 'includes/class-rest-api.php',
430 42 'admin/class-ajax-handler.php',
431 43 'admin/class-pinecone-manager.php',
432 44 'admin/class-knowledge-manager.php'
433 45 );
@@ -439,68 +51,11 @@
439 51 } else {
440 52 //error_log('MxChat: Missing class file - ' . $file);
441 53 }
442 54 }
443 -
444 - // Register the native function-calling admin-post save handler (a41dee).
445 - if (class_exists('MxChat_Tool_Registry')) {
446 - MxChat_Tool_Registry::init();
447 - }
448 -
449 - // GDPR: register with WP's personal-data export/erase tools (b81e42).
450 - if (class_exists('MxChat_Privacy')) {
451 - MxChat_Privacy::init();
452 - }
453 -
454 - // Per-session state store: retention cron + the cron-independent
455 - // migration drain off admin_init (b64b77).
456 - if (class_exists('MxChat_Session_Store')) {
457 - MxChat_Session_Store::init();
458 - }
459 -
460 - // Editor Assistant — free, OFF-by-default block-editor AI actions (plan-8cb0cb).
461 - // init() wires REST + streaming AJAX + sidebar enqueue ONLY when the
462 - // mxchat_editor_assistant_enabled option is 'on'; otherwise zero footprint.
463 - if (class_exists('MxChat_Editor_Assistant')) {
464 - MxChat_Editor_Assistant::init();
465 - }
466 -
467 - // Admin pages that aren't classes (procedural include).
468 - if (is_admin()) {
469 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
470 - if (file_exists($admin_api_page)) {
471 - require_once $admin_api_page;
472 - }
473 - // f7c7d4 renamed this file admin-dashboard-page.php → admin-onboarding-page.php.
474 - // The require MUST live here (admin bootstrap) and not just inside
475 - // mxchat_add_plugin_page() on the admin_menu hook — admin_menu does NOT
476 - // fire on admin-ajax.php requests, so the wizard's AJAX handlers
477 - // (plan-905439: mxchat_onboarding_kb_status / save_step / mark_step /
478 - // auto_graduate + the f7c7d4 dismiss handler) would never register.
479 - $admin_onboarding_page = plugin_dir_path(__FILE__) . 'includes/admin-onboarding-page.php';
480 - if (file_exists($admin_onboarding_page)) {
481 - require_once $admin_onboarding_page;
482 - }
483 - }
484 55 }
485 56
486 57 /**
487 - * Lazy-load the PDF parser library only when needed.
488 - * Avoids loading 44 files on every page request.
489 - */
490 -function mxchat_load_pdf_parser() {
491 - if (class_exists('\Smalot\PdfParser\Parser')) {
492 - return true;
493 - }
494 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
495 - if (file_exists($autoload_path)) {
496 - require_once $autoload_path;
497 - return true;
498 - }
499 - return false;
500 -}
501 -
502 -/**
503 58 * Create URL click tracking table
504 59 */
505 60 function mxchat_create_url_clicks_table() {
506 61 global $wpdb;
@@ -526,26 +81,8 @@
526 81 dbDelta($sql);
527 82 }
528 83
529 84 /**
530 - * Create the per-session state table (b64b77).
531 - *
532 - * Callable from the activation hook, which can run before plugins_loaded has
533 - * included the class files — so it loads the class itself when needed.
534 - */
535 -function mxchat_create_sessions_table() {
536 - if (!class_exists('MxChat_Session_Store')) {
537 - $path = plugin_dir_path(__FILE__) . 'includes/class-mxchat-session-store.php';
538 - if (!file_exists($path)) {
539 - return false;
540 - }
541 - require_once $path;
542 - }
543 -
544 - return MxChat_Session_Store::create_table();
545 -}
546 -
547 -/**
548 85 * FIXED: Robust table creation and column management
549 86 */
550 87 function mxchat_create_chat_transcripts_table() {
551 88 global $wpdb;
@@ -601,13 +138,12 @@
601 138
602 139 // Define all required columns and their types
603 140 $required_columns = [
604 141 'user_identifier' => 'VARCHAR(255) DEFAULT NULL',
605 - 'user_email' => 'VARCHAR(255) DEFAULT NULL',
142 + 'user_email' => 'VARCHAR(255) DEFAULT NULL',
606 143 'user_name' => 'VARCHAR(100) DEFAULT NULL',
607 144 'originating_page_url' => 'TEXT DEFAULT NULL',
608 - 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL',
609 - 'rag_context' => 'LONGTEXT DEFAULT NULL'
145 + 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL'
610 146 ];
611 147
612 148 // Get existing columns
613 149 $existing_columns = $wpdb->get_results("SHOW COLUMNS FROM $table_name");
@@ -786,9 +322,9 @@
786 322
787 323 // Add index for bot_id
788 324 $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
789 325
790 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
326 + error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
791 327 }
792 328
793 329 // Mark migration as complete
794 330 update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
@@ -823,9 +359,9 @@
823 359
824 360 // Add index for better query performance
825 361 $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
826 362
827 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
363 + error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
828 364 }
829 365
830 366 // Mark migration as complete
831 367 update_option('mxchat_content_type_migration_version', '2.5.6');
@@ -831,33 +367,8 @@
831 367 update_option('mxchat_content_type_migration_version', '2.5.6');
832 368 }
833 369
834 370 /**
835 - * 3.2.4: Backfill the active embedding model option for installs that already
836 - * have KB content but no stamped model. The mismatch warning compares this
837 - * against the user's currently selected model — no per-row column needed.
838 - */
839 -function mxchat_backfill_active_embedding_model() {
840 - global $wpdb;
841 -
842 - if (get_option('mxchat_active_embedding_model', '') !== '') {
843 - return;
844 - }
845 -
846 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
847 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
848 - return;
849 - }
850 -
851 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
852 - if ($kb_count > 0) {
853 - $options = get_option('mxchat_options', array());
854 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
855 - update_option('mxchat_active_embedding_model', $current_model, false);
856 - }
857 -}
858 -
859 -/**
860 371 * 2.5.2: Create queue processing tables for reliable background processing
861 372 */
862 373 function mxchat_create_queue_tables() {
863 374 global $wpdb;
@@ -905,58 +416,8 @@
905 416 //error_log("MxChat: Queue tables created/updated successfully");
906 417 }
907 418
908 419 /**
909 - * Create transcript translations table for persisting translations
910 - */
911 -function mxchat_create_translations_table() {
912 - global $wpdb;
913 - $charset_collate = $wpdb->get_charset_collate();
914 -
915 - $table_name = $wpdb->prefix . 'mxchat_transcript_translations';
916 - $sql = "CREATE TABLE $table_name (
917 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
918 - session_id varchar(255) NOT NULL,
919 - language_code varchar(10) NOT NULL,
920 - translations longtext NOT NULL,
921 - created_at datetime NOT NULL,
922 - updated_at datetime NOT NULL,
923 - PRIMARY KEY (id),
924 - UNIQUE KEY session_lang (session_id, language_code),
925 - KEY session_id (session_id)
926 - ) $charset_collate;";
927 -
928 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
929 - dbDelta($sql);
930 -}
931 -
932 -/**
933 - * Create per-session satisfaction ratings table (v3.2.6)
934 - * Stores one 👍/👎 rating + optional feedback per chat session.
935 - */
936 -function mxchat_create_session_ratings_table() {
937 - global $wpdb;
938 - $charset_collate = $wpdb->get_charset_collate();
939 -
940 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
941 - $sql = "CREATE TABLE $table_name (
942 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
943 - session_id varchar(255) NOT NULL,
944 - bot_id varchar(50) NOT NULL DEFAULT 'default',
945 - rating_value tinyint(1) NOT NULL,
946 - rating_feedback text DEFAULT NULL,
947 - created_at datetime NOT NULL,
948 - PRIMARY KEY (id),
949 - UNIQUE KEY session_id (session_id),
950 - KEY bot_id (bot_id),
951 - KEY created_at (created_at)
952 - ) $charset_collate;";
953 -
954 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
955 - dbDelta($sql);
956 -}
957 -
958 -/**
959 420 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
960 421 * This fixes "url, source_url. The supplied values may be too long" errors
961 422 */
962 423 function mxchat_fix_url_column_size() {
@@ -979,118 +440,22 @@
979 440
980 441 /**
981 442 * Migrate deprecated AI models to their replacements
982 443 * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
983 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
984 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
985 444 */
986 -function mxchat_migrate_transcripts_charset() {
987 - global $wpdb;
988 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
989 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
990 -}
991 -
992 -/**
993 - * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
994 - */
995 445 function mxchat_migrate_deprecated_models() {
996 446 $options = get_option('mxchat_options', array());
997 - $migrated = false;
998 - $migration_message = '';
999 -
1000 - if (!isset($options['model'])) {
1001 - return;
1002 - }
1003 -
1004 - $current_model = $options['model'];
1005 -
1006 - // Migrate deprecated Claude models to Claude Opus 4.6 (recommended replacement per Anthropic)
1007 - $deprecated_claude_models = array(
1008 - 'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025
1009 - 'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025
1010 - 'claude-3-7-sonnet-20250219', // Retiring Feb 19, 2026
1011 - 'claude-3-opus-20240229', // Retired Jan 5, 2026
1012 - 'claude-3-sonnet-20240229', // Legacy
1013 - 'claude-3-haiku-20240307', // Legacy
1014 - );
1015 - if (in_array($current_model, $deprecated_claude_models, true)) {
1016 - $options['model'] = 'claude-opus-4-6';
1017 - $migrated = true;
1018 - $migration_message = sprintf(
1019 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
1020 - $current_model
1021 - );
1022 - }
1023 -
1024 - // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
1025 - if ($current_model === 'claude-3-5-haiku-20241022') {
1026 - $options['model'] = 'claude-haiku-4-5-20251001';
1027 - $migrated = true;
1028 - $migration_message = 'Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.';
1029 - }
1030 -
1031 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.6 Sol.
1032 - // (Previous target gpt-5.1-chat-latest itself retires 2026-08-10 — never
1033 - // migrate onto a model that is already on a deprecation list.)
1034 - if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
1035 - $options['model'] = 'gpt-5.6-sol';
1036 - $migrated = true;
1037 - $migration_message = sprintf(
1038 - 'Your chatbot model has been automatically updated from %s to GPT-5.6 Sol due to OpenAI deprecating older models.',
1039 - $current_model
1040 - );
1041 - }
1042 -
1043 - // Migrate the gpt-5.x-chat-latest aliases OpenAI retires on August 10, 2026.
1044 - // Replacement per OpenAI's deprecations page: gpt-5.6-sol (plan e46b8f).
1045 - if (in_array($current_model, array('gpt-5.1-chat-latest', 'gpt-5.3-chat-latest'), true)) {
1046 - $options['model'] = 'gpt-5.6-sol';
1047 - $migrated = true;
1048 - $migration_message = sprintf(
1049 - 'Your chatbot model has been automatically updated from %s to GPT-5.6 Sol because OpenAI retires the GPT-5.x Chat Latest models on August 10, 2026.',
1050 - $current_model
1051 - );
1052 - }
1053 -
1054 - // The content generator has its own model option — same retirement applies.
1055 - if (isset($options['content_model'])
1056 - && in_array($options['content_model'], array('gpt-5.1-chat-latest', 'gpt-5.3-chat-latest'), true)) {
1057 - $old_content_model = $options['content_model'];
1058 - $options['content_model'] = 'gpt-5.6-sol';
1059 - $migrated = true;
1060 - $migration_message = trim($migration_message . ' ' . sprintf(
1061 - 'Your content generation model has also been updated from %s to GPT-5.6 Sol for the same OpenAI retirement.',
1062 - $old_content_model
1063 - ));
1064 - }
1065 -
1066 - // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
1067 - if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
1068 - $options['model'] = 'gpt-5-mini';
1069 - $migrated = true;
1070 - $migration_message = sprintf(
1071 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
1072 - $current_model
1073 - );
1074 - }
1075 -
1076 - // Migrate retired DeepSeek ids to DeepSeek V4 Flash — the vendor removed
1077 - // deepseek-chat and deepseek-reasoner on 2026-07-24 (hard cutoff, every
1078 - // request 400s). V4 Flash is DeepSeek's designated successor for the
1079 - // legacy deepseek-chat alias.
1080 - if (in_array($current_model, array('deepseek-chat', 'deepseek-reasoner'), true)) {
1081 - $options['model'] = 'deepseek-v4-flash';
1082 - $migrated = true;
1083 - $migration_message = sprintf(
1084 - 'Your chatbot model has been automatically updated from %s to DeepSeek V4 Flash because DeepSeek retired its older API models on July 24, 2026.',
1085 - $current_model
1086 - );
1087 - }
1088 -
1089 - if ($migrated) {
447 +
448 + // Check if model is set and is the deprecated Claude 3.5 Sonnet
449 + if (isset($options['model']) && $options['model'] === 'claude-3-5-sonnet-20241022') {
450 + // Update to Claude 3.7 Sonnet (the replacement model)
451 + $options['model'] = 'claude-3-7-sonnet-20250219';
1090 452 update_option('mxchat_options', $options);
453 +
454 + // Set a flag to show admin notice
1091 455 update_option('mxchat_model_migrated_notice', true);
1092 - update_option('mxchat_model_migration_message', $migration_message);
456 +
457 + //error_log('MxChat: Migrated deprecated Claude 3.5 Sonnet to Claude 3.7 Sonnet');
1093 458 }
1094 459 }
1095 460
1096 461 /**
@@ -1097,60 +462,20 @@
1097 462 * Show admin notice after model migration
1098 463 */
1099 464 function mxchat_show_migration_notice() {
1100 465 if (get_option('mxchat_model_migrated_notice')) {
1101 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
1102 466 ?>
1103 467 <div class="notice notice-info is-dismissible">
1104 468 <p>
1105 469 <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
1106 - <?php echo esc_html($migration_message); ?>
470 + <?php esc_html_e('Your chatbot model has been automatically updated from Claude 3.5 Sonnet to Claude 3.7 Sonnet due to the deprecation of the previous model by Anthropic. Claude 3.7 Sonnet offers improved performance and capabilities.', 'mxchat'); ?>
1107 471 </p>
1108 472 </div>
1109 473 <?php
1110 474 delete_option('mxchat_model_migrated_notice');
1111 - delete_option('mxchat_model_migration_message');
1112 475 }
1113 476 }
1114 477
1115 -/**
1116 - * Persistent admin notice when the provider rejected the configured model
1117 - * (model_not_found / no access). Set by mxchat_friendly_chat_error() in the
1118 - * integrator whenever a chat request fails on a model-access error — including
1119 - * requests from anonymous visitors, which is the case that otherwise stays
1120 - * invisible to the site owner for weeks (plan e46b8f).
1121 - *
1122 - * Deleted after render so it re-arms on the next failed chat: the notice keeps
1123 - * reappearing until the model is fixed, then stops on its own.
1124 - */
1125 -function mxchat_show_model_access_notice() {
1126 - if (!current_user_can('manage_options')) {
1127 - return;
1128 - }
1129 - $notice = get_option('mxchat_model_access_notice');
1130 - if (!is_array($notice) || empty($notice['model'])) {
1131 - return;
1132 - }
1133 - $settings_url = admin_url('admin.php?page=mxchat-max');
1134 - ?>
1135 - <div class="notice notice-error is-dismissible">
1136 - <p>
1137 - <strong><?php esc_html_e('MxChat: your AI model is being rejected by the provider', 'mxchat'); ?></strong><br>
1138 - <?php
1139 - printf(
1140 - /* translators: 1: model id, 2: provider name */
1141 - esc_html__('Chat requests using the model "%1$s" are failing because %2$s reports it as unavailable on your API key (it may have been retired). Visitors may be seeing errors instead of replies.', 'mxchat'),
1142 - esc_html($notice['model']),
1143 - esc_html(!empty($notice['provider']) ? $notice['provider'] : __('the AI provider', 'mxchat'))
1144 - );
1145 - ?>
1146 - <a href="<?php echo esc_url($settings_url); ?>"><?php esc_html_e('Choose a different model in MxChat Settings', 'mxchat'); ?></a>
1147 - </p>
1148 - </div>
1149 - <?php
1150 - delete_option('mxchat_model_access_notice');
1151 -}
1152 -
1153 478 function mxchat_activate() {
1154 479 global $wpdb;
1155 480 $charset_collate = $wpdb->get_charset_collate();
1156 481
@@ -1158,12 +483,8 @@
1158 483
1159 484 // Create chat transcripts table with improved function
1160 485 mxchat_create_chat_transcripts_table();
1161 486
1162 - // Per-session state table (b64b77). Activation can run before
1163 - // plugins_loaded has included the class files, so require it directly.
1164 - mxchat_create_sessions_table();
1165 -
1166 487 // System Prompt Content Table - UPDATED: Use TEXT for url and source_url columns
1167 488 $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
1168 489 $sql_system_prompt = "CREATE TABLE $system_prompt_table (
1169 490 id MEDIUMINT(9) NOT NULL AUTO_INCREMENT,
@@ -1191,26 +512,13 @@
1191 512 enabled_bots LONGTEXT DEFAULT NULL,
1192 513 PRIMARY KEY (id)
1193 514 ) $charset_collate;";
1194 515
1195 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
1196 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
1197 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
1198 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1199 - intent_id BIGINT(20) UNSIGNED NOT NULL,
1200 - phrase TEXT NOT NULL,
1201 - embedding_vector LONGTEXT NOT NULL,
1202 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1203 - PRIMARY KEY (id),
1204 - KEY intent_id (intent_id)
1205 - ) $charset_collate;";
1206 -
1207 516 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1208 517
1209 518 // Create other tables
1210 519 dbDelta($sql_system_prompt);
1211 520 dbDelta($sql_intents_table);
1212 - dbDelta($sql_intent_phrases_table);
1213 521
1214 522 // Create URL click tracking table
1215 523 mxchat_create_url_clicks_table();
1216 524
@@ -1219,14 +527,8 @@
1219 527
1220 528 // NEW 2.5.2: Create queue processing tables
1221 529 mxchat_create_queue_tables();
1222 530
1223 - // Create transcript translations table
1224 - mxchat_create_translations_table();
1225 -
1226 - // Create per-session satisfaction ratings table (v3.2.6)
1227 - mxchat_create_session_ratings_table();
1228 -
1229 531 // Ensure additional columns in system prompt table
1230 532 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1231 533 if (!empty($existing_system_columns)) {
1232 534 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1269,17 +571,13 @@
1269 571
1270 572 // Run migration for existing installations
1271 573 mxchat_migrate_pinecone_roles_add_bot_id();
1272 574
1273 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1274 - mxchat_backfill_active_embedding_model();
1275 -
1276 575 // Setup cron jobs
1277 576 mxchat_setup_cron_jobs();
1278 577
1279 - // Update version (stable base version — never the dev time()-suffixed one,
1280 - // or the check_for_update comparison would churn every request)
1281 - update_option('mxchat_plugin_version', MXCHAT_BASE_VERSION);
578 + // Update version
579 + update_option('mxchat_plugin_version', MXCHAT_VERSION);
1282 580
1283 581 //error_log("MxChat: Activation function completed");
1284 582 }
1285 583
@@ -1294,42 +592,22 @@
1294 592 if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
1295 593 // Set flag to use fallback system
1296 594 update_option('mxchat_use_fallback_rate_limits', true);
1297 595 update_option('mxchat_next_rate_limit_check', time() + 3600);
1298 - // Deliberately NO early return (plan-bc08a6): transcript cleanup below
1299 - // must still be scheduled. DISABLE_WP_CRON only changes HOW cron events
1300 - // execute (a server-side runner hitting wp-cron.php instead of loopback
1301 - // spawns) — scheduling still just writes the cron option. The old early
1302 - // return here meant a deactivate/reactivate cycle on a DISABLE_WP_CRON
1303 - // site permanently lost the transcript cleanup event while the retention
1304 - // setting still claimed to be active.
596 + return;
597 + }
598 +
599 + // Schedule the rate limit reset cron job
600 + $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
601 +
602 + if ($result === false) {
603 + // Fallback if scheduling fails
604 + update_option('mxchat_use_fallback_rate_limits', true);
605 + update_option('mxchat_next_rate_limit_check', time() + 3600);
1305 606 } else {
1306 - // Schedule the rate limit reset cron job
1307 - $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
1308 -
1309 - if ($result === false) {
1310 - // Fallback if scheduling fails
1311 - update_option('mxchat_use_fallback_rate_limits', true);
1312 - update_option('mxchat_next_rate_limit_check', time() + 3600);
1313 - } else {
1314 - // Clear fallback flags if cron scheduling succeeded
1315 - delete_option('mxchat_use_fallback_rate_limits');
1316 - }
607 + // Clear fallback flags if cron scheduling succeeded
608 + delete_option('mxchat_use_fallback_rate_limits');
1317 609 }
1318 -
1319 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
1320 - $transcript_options = get_option('mxchat_transcripts_options', array());
1321 - $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1322 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1323 -
1324 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
1325 - // Check if not already scheduled
1326 - if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1327 - // Schedule to run daily at 3 AM
1328 - $next_run = strtotime('tomorrow 3:00 AM');
1329 - wp_schedule_event($next_run, 'daily', 'mxchat_cleanup_old_transcripts');
1330 - }
1331 - }
1332 610 }
1333 611
1334 612 /**
1335 613 * Clean up on plugin deactivation
@@ -1336,10 +614,8 @@
1336 614 */
1337 615 function mxchat_deactivate() {
1338 616 // Clear scheduled cron jobs
1339 617 wp_clear_scheduled_hook('mxchat_reset_rate_limits');
1340 - wp_clear_scheduled_hook('mxchat_cleanup_old_transcripts');
1341 - wp_clear_scheduled_hook('mxchat_send_delayed_transcript');
1342 618
1343 619 // Clear fallback options
1344 620 delete_option('mxchat_use_fallback_rate_limits');
1345 621 delete_option('mxchat_next_rate_limit_check');
@@ -1359,25 +635,17 @@
1359 635 return;
1360 636 }
1361 637
1362 638 $next_check = get_option('mxchat_next_rate_limit_check', 0);
1363 -
639 +
1364 640 if (time() >= $next_check) {
1365 - // Reuse the bootstrap's integrator — mxchat_init() creates the global on
1366 - // plugins_loaded (before this init-priority-5 callback), so it's always set
1367 - // here. Constructing a second MxChat_Integrator just to call one method
1368 - // re-registers every hook the plugin has (ajax pairs, wp_footer loader,
1369 - // rest_api_init, admin_init guard) on a duplicate instance for the rest of
1370 - // the request. Defensive construction only if the global is somehow unset.
1371 - // NOTE: MxChat_Integrator::check_fallback_rate_limits() is a second
1372 - // implementation of this same check — if either changes, change both.
1373 - global $mxchat_integrator;
1374 - $integrator = ($mxchat_integrator instanceof MxChat_Integrator)
1375 - ? $mxchat_integrator
1376 - : (class_exists('MxChat_Integrator') ? new MxChat_Integrator() : null);
1377 - if ($integrator && method_exists($integrator, 'mxchat_reset_rate_limits')) {
1378 - $integrator->mxchat_reset_rate_limits();
1379 - update_option('mxchat_next_rate_limit_check', time() + 3600);
641 + // Only run reset if the MxChat_Integrator class exists
642 + if (class_exists('MxChat_Integrator')) {
643 + $integrator = new MxChat_Integrator();
644 + if (method_exists($integrator, 'mxchat_reset_rate_limits')) {
645 + $integrator->mxchat_reset_rate_limits();
646 + update_option('mxchat_next_rate_limit_check', time() + 3600);
647 + }
1380 648 }
1381 649 }
1382 650 }
1383 651
@@ -1389,9 +657,9 @@
1389 657 global $wpdb;
1390 658
1391 659 try {
1392 660 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1393 - $plugin_version = MXCHAT_BASE_VERSION;
661 + $plugin_version = MXCHAT_VERSION;
1394 662
1395 663 // Always ensure critical tables exist (even if version matches)
1396 664 // This handles manual table deletion or fresh installs
1397 665 $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
@@ -1396,16 +664,12 @@
1396 664 // This handles manual table deletion or fresh installs
1397 665 $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1398 666 $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
1399 667
1400 - $sessions_table = $wpdb->prefix . 'mxchat_sessions';
1401 -
1402 668 $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$chat_table'") === $chat_table;
1403 669 $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
1404 - $sessions_exists = get_option('mxchat_session_store_ready') === '1'
1405 - || $wpdb->get_var("SHOW TABLES LIKE '$sessions_table'") === $sessions_table;
1406 -
1407 - if (!$chat_exists || !$queue_exists || !$sessions_exists) {
670 +
671 + if (!$chat_exists || !$queue_exists) {
1408 672 //error_log("MxChat: Critical tables missing, running activation");
1409 673 mxchat_activate();
1410 674 }
1411 675
@@ -1411,14 +675,11 @@
1411 675
1412 676 // Version-specific migrations
1413 677 if ($current_version !== $plugin_version) {
1414 678 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1415 -
679 +
1416 680 // Run live agent update BEFORE updating the stored version
1417 681 mxchat_handle_live_agent_update();
1418 -
1419 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1420 - mxchat_handle_theme_migration_notice();
1421 682
1422 683 // Run role restriction migration for 2.4.1
1423 684 if (version_compare($current_version, '2.4.1', '<')) {
1424 685 mxchat_add_role_restriction_column();
@@ -1439,67 +700,9 @@
1439 700 mxchat_create_queue_tables();
1440 701 mxchat_fix_url_column_size(); // NEW: Fix URL column size for long URLs
1441 702 //error_log("MxChat: Queue tables created and URL columns updated for upgrade to 2.5.2");
1442 703 }
1443 -
1444 - // 2.6.0: Ensure rag_context column exists for retrieved documents feature
1445 - if (version_compare($current_version, '2.6.0', '<')) {
1446 - $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1447 - mxchat_ensure_all_columns($chat_table);
1448 - //error_log("MxChat: rag_context column migration for 2.6.0");
1449 - }
1450 -
1451 - // 3.0.5: Migrate deprecated Gemini embedding model
1452 - if (version_compare($current_version, '3.0.5', '<')) {
1453 - mxchat_migrate_gemini_embedding_model();
1454 - }
1455 -
1456 - // 3.0.6: Migrate deprecated OpenAI and Claude models
1457 - if (version_compare($current_version, '3.0.6', '<')) {
1458 - mxchat_migrate_deprecated_models();
1459 - }
1460 -
1461 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1462 - if (version_compare($current_version, '3.1.2', '<')) {
1463 - mxchat_migrate_transcripts_charset();
1464 - }
1465 -
1466 - // 3.1.7: Clean up stale shared session email/name entries
1467 - if (version_compare($current_version, '3.1.7', '<')) {
1468 - delete_option('mxchat_email_null');
1469 - delete_option('mxchat_name_null');
1470 - }
1471 -
1472 - // 3.2.4: Backfill active embedding model option for the warning UI
1473 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1474 - if (version_compare($current_version, '3.2.4', '<')) {
1475 - mxchat_backfill_active_embedding_model();
1476 - }
1477 -
1478 - // 3.2.15: Migrate retired DeepSeek ids (deepseek-chat / deepseek-reasoner
1479 - // were shut off at the vendor on 2026-07-24). The function is idempotent —
1480 - // it only rewrites models on its deprecation lists.
1481 - if (version_compare($current_version, '3.2.15', '<')) {
1482 - mxchat_migrate_deprecated_models();
1483 - }
1484 -
1485 - // 3.2.16: Migrate OpenAI ids retiring 2026-08-10 (gpt-5.1-chat-latest /
1486 - // gpt-5.3-chat-latest → gpt-5.6-sol per OpenAI's deprecations page).
1487 - // Idempotent — only rewrites models on the deprecation lists (e46b8f).
1488 - if (version_compare($current_version, '3.2.16', '<')) {
1489 - mxchat_migrate_deprecated_models();
1490 - }
1491 -
1492 - // 3.2.17: Credential options must not autoload (af2400) — the two
1493 - // Pinecone-secret-holding rows were in alloptions, i.e. read into
1494 - // memory on every request including anonymous page views. Idempotent.
1495 - // Also carry the import modal's remembered ACF→PDF checkbox state
1496 - // into the new install-level option (11720c).
1497 - if (version_compare($current_version, '3.2.17', '<')) {
1498 - mxchat_fix_credential_option_autoload();
1499 - mxchat_migrate_acf_pdf_extraction_option();
1500 - }
1501 -
704 +
1502 705 // Run full activation to ensure everything is up to date
1503 706 mxchat_activate();
1504 707
1505 708 // Run migration functions
@@ -1522,67 +725,8 @@
1522 725 }
1523 726 }
1524 727
1525 728 /**
1526 - * Credential options must never enter the autoloaded alloptions set.
1527 - * mxchat_prompts_options and mxchat_pinecone_addon_options can hold the
1528 - * Pinecone API secret; mxchat_options already stores its keys with autoload
1529 - * off and these two must match it. The filter covers every future
1530 - * add_option()/update_option() that creates the row — Settings API saves
1531 - * through options.php and WP-CLI included — on WP 6.6+; older cores are
1532 - * covered by the explicit autoload arguments at the plugin's own write
1533 - * sites plus the one-time migration below.
1534 - */
1535 -add_filter('wp_default_autoload_value', 'mxchat_credential_option_autoload_value', 10, 2);
1536 -function mxchat_credential_option_autoload_value($autoload, $option) {
1537 - if (in_array($option, array('mxchat_prompts_options', 'mxchat_pinecone_addon_options'), true)) {
1538 - return false;
1539 - }
1540 - return $autoload;
1541 -}
1542 -
1543 -/**
1544 - * One-time upgrade migration: flip the autoload flag on credential option
1545 - * rows that existing installs are already carrying autoloaded. Includes
1546 - * mxchat_adv_api_token (Advanced Content bearer token) — harmless no-op
1547 - * when that add-on is not installed, since missing rows simply don't match.
1548 - */
1549 -function mxchat_fix_credential_option_autoload() {
1550 - $keys = array('mxchat_prompts_options', 'mxchat_pinecone_addon_options', 'mxchat_adv_api_token');
1551 - if (function_exists('wp_set_option_autoload_values')) {
1552 - wp_set_option_autoload_values(array_fill_keys($keys, false));
1553 - return;
1554 - }
1555 - // Pre-WP-6.4 fallback: direct flip + cache invalidation.
1556 - global $wpdb;
1557 - $placeholders = implode(',', array_fill(0, count($keys), '%s'));
1558 - $wpdb->query($wpdb->prepare("UPDATE {$wpdb->options} SET autoload = 'no' WHERE option_name IN ($placeholders)", $keys));
1559 - wp_cache_delete('alloptions', 'options');
1560 - foreach ($keys as $key) {
1561 - wp_cache_delete($key, 'options');
1562 - }
1563 -}
1564 -
1565 -/**
1566 - * One-time carry of the import modal's remembered ACF→PDF checkbox state
1567 - * (mxchat_options['acf_pdf_extract_default'], written per-import until 3.2.16)
1568 - * into the new install-level option mxchat_acf_pdf_extraction (plan 11720c).
1569 - * Fresh installs and installs that never touched the checkbox default OFF,
1570 - * matching the setting's own "recommended only if…" guidance.
1571 - */
1572 -function mxchat_migrate_acf_pdf_extraction_option() {
1573 - if (get_option('mxchat_acf_pdf_extraction', null) !== null) {
1574 - return; // already set — never overwrite an owner's choice
1575 - }
1576 - $mxchat_options = get_option('mxchat_options', array());
1577 - if (is_array($mxchat_options) && array_key_exists('acf_pdf_extract_default', $mxchat_options)) {
1578 - update_option('mxchat_acf_pdf_extraction', !empty($mxchat_options['acf_pdf_extract_default']) ? '1' : '0', false);
1579 - unset($mxchat_options['acf_pdf_extract_default']);
1580 - update_option('mxchat_options', $mxchat_options);
1581 - }
1582 -}
1583 -
1584 -/**
1585 729 * Ensure tables exist on every admin load for fresh installations
1586 730 * This is a safety net for cases where activation hook doesn't fire
1587 731 */
1588 732 function mxchat_ensure_tables_exist() {
@@ -1602,16 +746,12 @@
1602 746
1603 747 $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
1604 748 $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
1605 749
1606 - $sessions_table = $wpdb->prefix . 'mxchat_sessions';
1607 -
1608 750 $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
1609 751 $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
1610 - $sessions_exists = get_option('mxchat_session_store_ready') === '1'
1611 - || $wpdb->get_var("SHOW TABLES LIKE '$sessions_table'") === $sessions_table;
1612 -
1613 - if (!$chat_exists || !$queue_exists || !$sessions_exists) {
752 +
753 + if (!$chat_exists || !$queue_exists) {
1614 754 //error_log("MxChat: Tables missing on admin load, running activation");
1615 755 mxchat_activate();
1616 756 }
1617 757 }
@@ -1694,59 +834,31 @@
1694 834 function mxchat_handle_live_agent_update() {
1695 835 // Get the CURRENT stored version (before it gets updated)
1696 836 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1697 837 $new_version = '2.2.2';
1698 -
838 +
1699 839 // Only run this once for the update to 2.2.2
1700 840 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1701 -
841 +
1702 842 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1703 843 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1704 844 $options = get_option('mxchat_options', array());
1705 -
845 +
1706 846 // Check if live agent was previously enabled
1707 847 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1708 848 // Disable live agent
1709 849 $options['live_agent_status'] = 'off';
1710 850 update_option('mxchat_options', $options);
1711 -
851 +
1712 852 // Set flag to show the notification banner
1713 853 update_option('mxchat_show_live_agent_disabled_notice', true);
1714 854 }
1715 -
855 +
1716 856 // Mark this update as handled
1717 857 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1718 858 }
1719 859 }
1720 860
1721 -/**
1722 - * Handle theme migration notice for version 3.0.1
1723 - * Shows a dismissible notice to Pro users about migrating AI-generated themes
1724 - */
1725 -function mxchat_handle_theme_migration_notice() {
1726 - // Get the CURRENT stored version (before it gets updated)
1727 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1728 - $target_version = '3.0.1';
1729 -
1730 - // Only run this once for the update to 3.0.1
1731 - $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
1732 -
1733 - // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1734 - if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1735 - // Check if Pro is activated - only show to Pro users
1736 - $license_status = get_option('mxchat_license_status', 'inactive');
1737 - $is_pro = ($license_status === 'active');
1738 -
1739 - if ($is_pro) {
1740 - // Set flag to show the theme migration notification banner
1741 - update_option('mxchat_show_theme_migration_notice', true);
1742 - }
1743 -
1744 - // Mark this update as handled (whether Pro or not)
1745 - update_option('mxchat_theme_migration_update_3_0_1_handled', true);
1746 - }
1747 -}
1748 -
1749 861 // Initialize plugin safely
1750 862 function mxchat_init() {
1751 863 // Include all class files first
1752 864 mxchat_include_classes();
@@ -1761,9 +873,8 @@
1761 873 add_action('init', 'mxchat_check_fallback_rate_limits', 5);
1762 874
1763 875 // Add migration notice hook
1764 876 add_action('admin_notices', 'mxchat_show_migration_notice');
1765 - add_action('admin_notices', 'mxchat_show_model_access_notice');
1766 877
1767 878 // Initialize classes with error handling
1768 879 try {
1769 880 // Initialize admin classes
@@ -1779,32 +890,10 @@
1779 890 // Initialize meta box class
1780 891 if (class_exists('MxChat_Meta_Box')) {
1781 892 new MxChat_Meta_Box();
1782 893 }
1783 -
1784 894 }
1785 -
1786 - // Initialize content generator globally — it registers wp_head hook
1787 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1788 - if (class_exists('MxChat_Content_Generator')) {
1789 - new MxChat_Content_Generator();
1790 - }
1791 -
1792 - // Initialize cache purge globally — settings writes can happen on any
1793 - // request type (admin screens, admin-ajax autosave, wp-cli), and the
1794 - // deferred-purge cron event fires on front-end requests.
1795 - if (class_exists('MxChat_Cache_Purge')) {
1796 - MxChat_Cache_Purge::init();
1797 - }
1798 -
1799 - // Initialize REST API globally — endpoints must be registered on
1800 - // every request (admin and frontend) so they're reachable via /wp-json/.
1801 - // Endpoints are auth-gated and locked until the site owner generates
1802 - // a token in MxChat → API Access.
1803 - if (class_exists('MxChat_Rest_Api')) {
1804 - new MxChat_Rest_Api();
1805 - }
1806 -
895 +
1807 896 // Initialize public classes
1808 897 if (class_exists('MxChat_Public')) {
1809 898 $mxchat_public = new MxChat_Public();
1810 899 }
@@ -1848,57 +937,10 @@
1848 937 $checked = true;
1849 938
1850 939 mxchat_migrate_pinecone_roles_add_bot_id();
1851 940 mxchat_migrate_add_content_type_column();
1852 - mxchat_migrate_add_translations_table();
1853 - mxchat_migrate_add_session_ratings_table();
1854 941 }
1855 942
1856 -/**
1857 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1858 - * For users upgrading from versions before 3.2.6
1859 - */
1860 -function mxchat_migrate_add_session_ratings_table() {
1861 - $migration_key = 'mxchat_session_ratings_table_created';
1862 - if (get_option($migration_key)) {
1863 - return;
1864 - }
1865 - mxchat_create_session_ratings_table();
1866 - update_option($migration_key, '3.2.6');
1867 -}
1868 -
1869 -/**
1870 - * Migration: Create transcript translations table (v3.0.4)
1871 - * For users upgrading from versions before 3.0.4
1872 - */
1873 -function mxchat_migrate_add_translations_table() {
1874 - $migration_key = 'mxchat_translations_table_created';
1875 -
1876 - // Check if migration already ran
1877 - if (get_option($migration_key)) {
1878 - return;
1879 - }
1880 -
1881 - // Create the translations table
1882 - mxchat_create_translations_table();
1883 -
1884 - // Mark migration as complete
1885 - update_option($migration_key, '3.0.4');
1886 -}
1887 -
1888 -/**
1889 - * Migration: Update deprecated Gemini embedding model (v3.0.5)
1890 - * Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected
1891 - */
1892 -function mxchat_migrate_gemini_embedding_model() {
1893 - $options = get_option('mxchat_options', array());
1894 -
1895 - if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') {
1896 - $options['embedding_model'] = 'gemini-embedding-001';
1897 - update_option('mxchat_options', $options);
1898 - }
1899 -}
1900 -
1901 943 // Register activation hook
1902 944 register_activation_hook(__FILE__, 'mxchat_activate');
1903 945
1904 946 // Add cron schedule
@@ -1910,67 +952,5 @@
1910 952 return $schedules;
1911 953 });
1912 954
1913 955 // Register deactivation hook
1914 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1915 -
1916 -/**
1917 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1918 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1919 - * session_id makes this naturally idempotent — only the first rating per
1920 - * session is stored; duplicate POSTs are silent no-ops.
1921 - */
1922 -function mxchat_save_session_rating() {
1923 - global $wpdb;
1924 -
1925 - $session_id = isset($_POST['session_id']) ? MxChat_Utils::sanitize_session_id(wp_unslash($_POST['session_id'])) : '';
1926 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1927 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1928 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1929 -
1930 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1931 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1932 - }
1933 -
1934 - if (strlen($feedback) > 1000) {
1935 - $feedback = substr($feedback, 0, 1000);
1936 - }
1937 -
1938 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1939 - $existing = $wpdb->get_var($wpdb->prepare(
1940 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1941 - $session_id
1942 - ));
1943 -
1944 - if ($existing) {
1945 - if ($feedback !== '') {
1946 - $wpdb->update(
1947 - $table_name,
1948 - array('rating_feedback' => $feedback),
1949 - array('id' => (int) $existing),
1950 - array('%s'),
1951 - array('%d')
1952 - );
1953 - }
1954 - wp_send_json_success(array('updated' => true));
1955 - }
1956 -
1957 - $inserted = $wpdb->insert(
1958 - $table_name,
1959 - array(
1960 - 'session_id' => $session_id,
1961 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1962 - 'rating_value' => $rating_raw,
1963 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1964 - 'created_at' => current_time('mysql'),
1965 - ),
1966 - array('%s', '%s', '%d', '%s', '%s')
1967 - );
1968 -
1969 - if ($inserted === false) {
1970 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1971 - }
1972 -
1973 - wp_send_json_success(array('saved' => true));
1974 -}
1975 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1976 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
956 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');