PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / 2.5.4
MxChat – AI Chatbot & Content Generation for WordPress v2.5.4
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 +58 -1145 3.2.17 → 2.5.4 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: 3.2.17
6 + * Version: 2.5.4
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
@@ -15,418 +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-live-agent-schedule.php',
415 - 'includes/class-mxchat-tool-registry.php',
416 34 'includes/class-mxchat-integrator.php',
417 35 'includes/class-mxchat-admin.php',
418 36 'includes/class-mxchat-public.php',
419 37 'includes/class-mxchat-utils.php',
420 38 'includes/class-mxchat-user.php',
421 - 'includes/class-mxchat-privacy.php',
422 39 'includes/class-mxchat-meta-box.php',
423 - 'includes/class-mxchat-chunker.php',
40 + 'includes/pdf-parser/alt_autoload.php',
424 41 'includes/class-mxchat-word-handler.php',
425 - 'includes/class-mxchat-content-generator.php',
426 - 'includes/class-mxchat-cache-purge.php',
427 - 'includes/class-mxchat-editor-assistant.php',
428 - 'includes/class-rest-api.php',
429 42 'admin/class-ajax-handler.php',
430 43 'admin/class-pinecone-manager.php',
431 44 'admin/class-knowledge-manager.php'
432 45 );
@@ -438,62 +51,11 @@
438 51 } else {
439 52 //error_log('MxChat: Missing class file - ' . $file);
440 53 }
441 54 }
442 -
443 - // Register the native function-calling admin-post save handler (a41dee).
444 - if (class_exists('MxChat_Tool_Registry')) {
445 - MxChat_Tool_Registry::init();
446 - }
447 -
448 - // GDPR: register with WP's personal-data export/erase tools (b81e42).
449 - if (class_exists('MxChat_Privacy')) {
450 - MxChat_Privacy::init();
451 - }
452 -
453 - // Editor Assistant — free, OFF-by-default block-editor AI actions (plan-8cb0cb).
454 - // init() wires REST + streaming AJAX + sidebar enqueue ONLY when the
455 - // mxchat_editor_assistant_enabled option is 'on'; otherwise zero footprint.
456 - if (class_exists('MxChat_Editor_Assistant')) {
457 - MxChat_Editor_Assistant::init();
458 - }
459 -
460 - // Admin pages that aren't classes (procedural include).
461 - if (is_admin()) {
462 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
463 - if (file_exists($admin_api_page)) {
464 - require_once $admin_api_page;
465 - }
466 - // f7c7d4 renamed this file admin-dashboard-page.php → admin-onboarding-page.php.
467 - // The require MUST live here (admin bootstrap) and not just inside
468 - // mxchat_add_plugin_page() on the admin_menu hook — admin_menu does NOT
469 - // fire on admin-ajax.php requests, so the wizard's AJAX handlers
470 - // (plan-905439: mxchat_onboarding_kb_status / save_step / mark_step /
471 - // auto_graduate + the f7c7d4 dismiss handler) would never register.
472 - $admin_onboarding_page = plugin_dir_path(__FILE__) . 'includes/admin-onboarding-page.php';
473 - if (file_exists($admin_onboarding_page)) {
474 - require_once $admin_onboarding_page;
475 - }
476 - }
477 55 }
478 56
479 57 /**
480 - * Lazy-load the PDF parser library only when needed.
481 - * Avoids loading 44 files on every page request.
482 - */
483 -function mxchat_load_pdf_parser() {
484 - if (class_exists('\Smalot\PdfParser\Parser')) {
485 - return true;
486 - }
487 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
488 - if (file_exists($autoload_path)) {
489 - require_once $autoload_path;
490 - return true;
491 - }
492 - return false;
493 -}
494 -
495 -/**
496 58 * Create URL click tracking table
497 59 */
498 60 function mxchat_create_url_clicks_table() {
499 61 global $wpdb;
@@ -576,13 +138,12 @@
576 138
577 139 // Define all required columns and their types
578 140 $required_columns = [
579 141 'user_identifier' => 'VARCHAR(255) DEFAULT NULL',
580 - 'user_email' => 'VARCHAR(255) DEFAULT NULL',
142 + 'user_email' => 'VARCHAR(255) DEFAULT NULL',
581 143 'user_name' => 'VARCHAR(100) DEFAULT NULL',
582 144 'originating_page_url' => 'TEXT DEFAULT NULL',
583 - 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL',
584 - 'rag_context' => 'LONGTEXT DEFAULT NULL'
145 + 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL'
585 146 ];
586 147
587 148 // Get existing columns
588 149 $existing_columns = $wpdb->get_results("SHOW COLUMNS FROM $table_name");
@@ -702,137 +263,32 @@
702 263 }
703 264 }
704 265
705 266 /**
706 - * Create Pinecone role restrictions table with multi-bot support
267 + * Create Pinecone role restrictions table
707 268 */
708 269 function mxchat_create_pinecone_roles_table() {
709 270 global $wpdb;
710 -
271 +
711 272 $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
712 273 $charset_collate = $wpdb->get_charset_collate();
713 -
274 +
714 275 $sql = "CREATE TABLE $table_name (
715 276 id mediumint(9) NOT NULL AUTO_INCREMENT,
716 277 vector_id varchar(255) NOT NULL,
717 - bot_id varchar(50) NOT NULL DEFAULT 'default',
718 278 source_url text,
719 279 role_restriction varchar(50) DEFAULT 'public',
720 280 updated_at timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
721 281 PRIMARY KEY (id),
722 - UNIQUE KEY vector_bot (vector_id, bot_id),
723 - KEY role_restriction (role_restriction),
724 - KEY bot_id (bot_id)
282 + UNIQUE KEY vector_id (vector_id),
283 + KEY role_restriction (role_restriction)
725 284 ) $charset_collate;";
726 -
285 +
727 286 require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
728 287 dbDelta($sql);
729 288 }
730 289
731 290 /**
732 - * Add bot_id column to mxchat_pinecone_roles table for multi-bot support
733 - * This migration runs once to update existing installations
734 - */
735 -function mxchat_migrate_pinecone_roles_add_bot_id() {
736 - global $wpdb;
737 -
738 - // Check if migration already ran
739 - $migration_version = get_option('mxchat_pinecone_roles_migration_version', '0');
740 - if (version_compare($migration_version, '2.5.2', '>=')) {
741 - return; // Already migrated
742 - }
743 -
744 - $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
745 -
746 - // Check if table exists
747 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
748 - return; // Table doesn't exist yet
749 - }
750 -
751 - // Check if bot_id column already exists
752 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'bot_id'");
753 -
754 - if (empty($column_exists)) {
755 - // Add bot_id column
756 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN bot_id VARCHAR(50) NOT NULL DEFAULT 'default' AFTER vector_id");
757 -
758 - // Update the unique key to include bot_id
759 - $wpdb->query("ALTER TABLE {$table_name} DROP INDEX vector_id");
760 - $wpdb->query("ALTER TABLE {$table_name} ADD UNIQUE KEY vector_bot (vector_id, bot_id)");
761 -
762 - // Add index for bot_id
763 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
764 -
765 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
766 - }
767 -
768 - // Mark migration as complete
769 - update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
770 -}
771 -
772 -/**
773 - * 2.5.6: Add content_type column to mxchat_system_prompt_content table
774 - * Enables filtering knowledge base by content type (posts, pages, PDFs, etc.)
775 - */
776 -function mxchat_migrate_add_content_type_column() {
777 - global $wpdb;
778 -
779 - // Check if migration already ran
780 - $migration_version = get_option('mxchat_content_type_migration_version', '0');
781 - if (version_compare($migration_version, '2.5.6', '>=')) {
782 - return;
783 - }
784 -
785 - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
786 -
787 - // Check if table exists
788 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
789 - return;
790 - }
791 -
792 - // Check if content_type column already exists
793 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'content_type'");
794 -
795 - if (empty($column_exists)) {
796 - // Add content_type column with default value 'content' for backwards compatibility
797 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN content_type VARCHAR(50) DEFAULT 'content' AFTER role_restriction");
798 -
799 - // Add index for better query performance
800 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
801 -
802 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
803 - }
804 -
805 - // Mark migration as complete
806 - update_option('mxchat_content_type_migration_version', '2.5.6');
807 -}
808 -
809 -/**
810 - * 3.2.4: Backfill the active embedding model option for installs that already
811 - * have KB content but no stamped model. The mismatch warning compares this
812 - * against the user's currently selected model — no per-row column needed.
813 - */
814 -function mxchat_backfill_active_embedding_model() {
815 - global $wpdb;
816 -
817 - if (get_option('mxchat_active_embedding_model', '') !== '') {
818 - return;
819 - }
820 -
821 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
822 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
823 - return;
824 - }
825 -
826 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
827 - if ($kb_count > 0) {
828 - $options = get_option('mxchat_options', array());
829 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
830 - update_option('mxchat_active_embedding_model', $current_model, false);
831 - }
832 -}
833 -
834 -/**
835 291 * 2.5.2: Create queue processing tables for reliable background processing
836 292 */
837 293 function mxchat_create_queue_tables() {
838 294 global $wpdb;
@@ -880,58 +336,8 @@
880 336 //error_log("MxChat: Queue tables created/updated successfully");
881 337 }
882 338
883 339 /**
884 - * Create transcript translations table for persisting translations
885 - */
886 -function mxchat_create_translations_table() {
887 - global $wpdb;
888 - $charset_collate = $wpdb->get_charset_collate();
889 -
890 - $table_name = $wpdb->prefix . 'mxchat_transcript_translations';
891 - $sql = "CREATE TABLE $table_name (
892 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
893 - session_id varchar(255) NOT NULL,
894 - language_code varchar(10) NOT NULL,
895 - translations longtext NOT NULL,
896 - created_at datetime NOT NULL,
897 - updated_at datetime NOT NULL,
898 - PRIMARY KEY (id),
899 - UNIQUE KEY session_lang (session_id, language_code),
900 - KEY session_id (session_id)
901 - ) $charset_collate;";
902 -
903 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
904 - dbDelta($sql);
905 -}
906 -
907 -/**
908 - * Create per-session satisfaction ratings table (v3.2.6)
909 - * Stores one 👍/👎 rating + optional feedback per chat session.
910 - */
911 -function mxchat_create_session_ratings_table() {
912 - global $wpdb;
913 - $charset_collate = $wpdb->get_charset_collate();
914 -
915 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
916 - $sql = "CREATE TABLE $table_name (
917 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
918 - session_id varchar(255) NOT NULL,
919 - bot_id varchar(50) NOT NULL DEFAULT 'default',
920 - rating_value tinyint(1) NOT NULL,
921 - rating_feedback text DEFAULT NULL,
922 - created_at datetime NOT NULL,
923 - PRIMARY KEY (id),
924 - UNIQUE KEY session_id (session_id),
925 - KEY bot_id (bot_id),
926 - KEY created_at (created_at)
927 - ) $charset_collate;";
928 -
929 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
930 - dbDelta($sql);
931 -}
932 -
933 -/**
934 340 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
935 341 * This fixes "url, source_url. The supplied values may be too long" errors
936 342 */
937 343 function mxchat_fix_url_column_size() {
@@ -954,118 +360,22 @@
954 360
955 361 /**
956 362 * Migrate deprecated AI models to their replacements
957 363 * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
958 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
959 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
960 364 */
961 -function mxchat_migrate_transcripts_charset() {
962 - global $wpdb;
963 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
964 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
965 -}
966 -
967 -/**
968 - * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
969 - */
970 365 function mxchat_migrate_deprecated_models() {
971 366 $options = get_option('mxchat_options', array());
972 - $migrated = false;
973 - $migration_message = '';
974 -
975 - if (!isset($options['model'])) {
976 - return;
977 - }
978 -
979 - $current_model = $options['model'];
980 -
981 - // Migrate deprecated Claude models to Claude Opus 4.6 (recommended replacement per Anthropic)
982 - $deprecated_claude_models = array(
983 - 'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025
984 - 'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025
985 - 'claude-3-7-sonnet-20250219', // Retiring Feb 19, 2026
986 - 'claude-3-opus-20240229', // Retired Jan 5, 2026
987 - 'claude-3-sonnet-20240229', // Legacy
988 - 'claude-3-haiku-20240307', // Legacy
989 - );
990 - if (in_array($current_model, $deprecated_claude_models, true)) {
991 - $options['model'] = 'claude-opus-4-6';
992 - $migrated = true;
993 - $migration_message = sprintf(
994 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
995 - $current_model
996 - );
997 - }
998 -
999 - // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
1000 - if ($current_model === 'claude-3-5-haiku-20241022') {
1001 - $options['model'] = 'claude-haiku-4-5-20251001';
1002 - $migrated = true;
1003 - $migration_message = 'Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.';
1004 - }
1005 -
1006 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.6 Sol.
1007 - // (Previous target gpt-5.1-chat-latest itself retires 2026-08-10 — never
1008 - // migrate onto a model that is already on a deprecation list.)
1009 - if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
1010 - $options['model'] = 'gpt-5.6-sol';
1011 - $migrated = true;
1012 - $migration_message = sprintf(
1013 - 'Your chatbot model has been automatically updated from %s to GPT-5.6 Sol due to OpenAI deprecating older models.',
1014 - $current_model
1015 - );
1016 - }
1017 -
1018 - // Migrate the gpt-5.x-chat-latest aliases OpenAI retires on August 10, 2026.
1019 - // Replacement per OpenAI's deprecations page: gpt-5.6-sol (plan e46b8f).
1020 - if (in_array($current_model, array('gpt-5.1-chat-latest', 'gpt-5.3-chat-latest'), true)) {
1021 - $options['model'] = 'gpt-5.6-sol';
1022 - $migrated = true;
1023 - $migration_message = sprintf(
1024 - '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.',
1025 - $current_model
1026 - );
1027 - }
1028 -
1029 - // The content generator has its own model option — same retirement applies.
1030 - if (isset($options['content_model'])
1031 - && in_array($options['content_model'], array('gpt-5.1-chat-latest', 'gpt-5.3-chat-latest'), true)) {
1032 - $old_content_model = $options['content_model'];
1033 - $options['content_model'] = 'gpt-5.6-sol';
1034 - $migrated = true;
1035 - $migration_message = trim($migration_message . ' ' . sprintf(
1036 - 'Your content generation model has also been updated from %s to GPT-5.6 Sol for the same OpenAI retirement.',
1037 - $old_content_model
1038 - ));
1039 - }
1040 -
1041 - // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
1042 - if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
1043 - $options['model'] = 'gpt-5-mini';
1044 - $migrated = true;
1045 - $migration_message = sprintf(
1046 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
1047 - $current_model
1048 - );
1049 - }
1050 -
1051 - // Migrate retired DeepSeek ids to DeepSeek V4 Flash — the vendor removed
1052 - // deepseek-chat and deepseek-reasoner on 2026-07-24 (hard cutoff, every
1053 - // request 400s). V4 Flash is DeepSeek's designated successor for the
1054 - // legacy deepseek-chat alias.
1055 - if (in_array($current_model, array('deepseek-chat', 'deepseek-reasoner'), true)) {
1056 - $options['model'] = 'deepseek-v4-flash';
1057 - $migrated = true;
1058 - $migration_message = sprintf(
1059 - 'Your chatbot model has been automatically updated from %s to DeepSeek V4 Flash because DeepSeek retired its older API models on July 24, 2026.',
1060 - $current_model
1061 - );
1062 - }
1063 -
1064 - if ($migrated) {
367 +
368 + // Check if model is set and is the deprecated Claude 3.5 Sonnet
369 + if (isset($options['model']) && $options['model'] === 'claude-3-5-sonnet-20241022') {
370 + // Update to Claude 3.7 Sonnet (the replacement model)
371 + $options['model'] = 'claude-3-7-sonnet-20250219';
1065 372 update_option('mxchat_options', $options);
373 +
374 + // Set a flag to show admin notice
1066 375 update_option('mxchat_model_migrated_notice', true);
1067 - update_option('mxchat_model_migration_message', $migration_message);
376 +
377 + //error_log('MxChat: Migrated deprecated Claude 3.5 Sonnet to Claude 3.7 Sonnet');
1068 378 }
1069 379 }
1070 380
1071 381 /**
@@ -1072,60 +382,20 @@
1072 382 * Show admin notice after model migration
1073 383 */
1074 384 function mxchat_show_migration_notice() {
1075 385 if (get_option('mxchat_model_migrated_notice')) {
1076 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
1077 386 ?>
1078 387 <div class="notice notice-info is-dismissible">
1079 388 <p>
1080 389 <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
1081 - <?php echo esc_html($migration_message); ?>
390 + <?php esc_html_e('Your chatbot model has been automatically updated from Claude 3.5 Sonnet to Claude 3.7 Sonnet due to the deprecation of the previous model by Anthropic. Claude 3.7 Sonnet offers improved performance and capabilities.', 'mxchat'); ?>
1082 391 </p>
1083 392 </div>
1084 393 <?php
1085 394 delete_option('mxchat_model_migrated_notice');
1086 - delete_option('mxchat_model_migration_message');
1087 395 }
1088 396 }
1089 397
1090 -/**
1091 - * Persistent admin notice when the provider rejected the configured model
1092 - * (model_not_found / no access). Set by mxchat_friendly_chat_error() in the
1093 - * integrator whenever a chat request fails on a model-access error — including
1094 - * requests from anonymous visitors, which is the case that otherwise stays
1095 - * invisible to the site owner for weeks (plan e46b8f).
1096 - *
1097 - * Deleted after render so it re-arms on the next failed chat: the notice keeps
1098 - * reappearing until the model is fixed, then stops on its own.
1099 - */
1100 -function mxchat_show_model_access_notice() {
1101 - if (!current_user_can('manage_options')) {
1102 - return;
1103 - }
1104 - $notice = get_option('mxchat_model_access_notice');
1105 - if (!is_array($notice) || empty($notice['model'])) {
1106 - return;
1107 - }
1108 - $settings_url = admin_url('admin.php?page=mxchat-max');
1109 - ?>
1110 - <div class="notice notice-error is-dismissible">
1111 - <p>
1112 - <strong><?php esc_html_e('MxChat: your AI model is being rejected by the provider', 'mxchat'); ?></strong><br>
1113 - <?php
1114 - printf(
1115 - /* translators: 1: model id, 2: provider name */
1116 - esc_html__('Chat requests using the model "%1$s" are failing because %2$s reports it as unavailable on your API key (it may have been retired). Visitors may be seeing errors instead of replies.', 'mxchat'),
1117 - esc_html($notice['model']),
1118 - esc_html(!empty($notice['provider']) ? $notice['provider'] : __('the AI provider', 'mxchat'))
1119 - );
1120 - ?>
1121 - <a href="<?php echo esc_url($settings_url); ?>"><?php esc_html_e('Choose a different model in MxChat Settings', 'mxchat'); ?></a>
1122 - </p>
1123 - </div>
1124 - <?php
1125 - delete_option('mxchat_model_access_notice');
1126 -}
1127 -
1128 398 function mxchat_activate() {
1129 399 global $wpdb;
1130 400 $charset_collate = $wpdb->get_charset_collate();
1131 401
@@ -1142,12 +412,10 @@
1142 412 article_content LONGTEXT NOT NULL,
1143 413 embedding_vector LONGTEXT,
1144 414 source_url TEXT DEFAULT NULL,
1145 415 role_restriction VARCHAR(50) DEFAULT 'public',
1146 - content_type VARCHAR(50) DEFAULT 'content',
1147 416 timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1148 - PRIMARY KEY (id),
1149 - KEY content_type (content_type)
417 + PRIMARY KEY (id)
1150 418 ) $charset_collate;";
1151 419
1152 420 // Intents Table - NOW INCLUDES enabled_bots column from the start
1153 421 $intents_table = $wpdb->prefix . 'mxchat_intents';
@@ -1162,26 +430,13 @@
1162 430 enabled_bots LONGTEXT DEFAULT NULL,
1163 431 PRIMARY KEY (id)
1164 432 ) $charset_collate;";
1165 433
1166 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
1167 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
1168 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
1169 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1170 - intent_id BIGINT(20) UNSIGNED NOT NULL,
1171 - phrase TEXT NOT NULL,
1172 - embedding_vector LONGTEXT NOT NULL,
1173 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1174 - PRIMARY KEY (id),
1175 - KEY intent_id (intent_id)
1176 - ) $charset_collate;";
1177 -
1178 434 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1179 435
1180 436 // Create other tables
1181 437 dbDelta($sql_system_prompt);
1182 438 dbDelta($sql_intents_table);
1183 - dbDelta($sql_intent_phrases_table);
1184 439
1185 440 // Create URL click tracking table
1186 441 mxchat_create_url_clicks_table();
1187 442
@@ -1190,14 +445,8 @@
1190 445
1191 446 // NEW 2.5.2: Create queue processing tables
1192 447 mxchat_create_queue_tables();
1193 448
1194 - // Create transcript translations table
1195 - mxchat_create_translations_table();
1196 -
1197 - // Create per-session satisfaction ratings table (v3.2.6)
1198 - mxchat_create_session_ratings_table();
1199 -
1200 449 // Ensure additional columns in system prompt table
1201 450 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1202 451 if (!empty($existing_system_columns)) {
1203 452 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1237,21 +486,14 @@
1237 486 ));
1238 487 }
1239 488 }
1240 489
1241 - // Run migration for existing installations
1242 - mxchat_migrate_pinecone_roles_add_bot_id();
1243 -
1244 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1245 - mxchat_backfill_active_embedding_model();
1246 -
1247 490 // Setup cron jobs
1248 491 mxchat_setup_cron_jobs();
1249 492
1250 - // Update version (stable base version — never the dev time()-suffixed one,
1251 - // or the check_for_update comparison would churn every request)
1252 - update_option('mxchat_plugin_version', MXCHAT_BASE_VERSION);
1253 -
493 + // Update version
494 + update_option('mxchat_plugin_version', MXCHAT_VERSION);
495 +
1254 496 //error_log("MxChat: Activation function completed");
1255 497 }
1256 498
1257 499 /**
@@ -1265,42 +507,22 @@
1265 507 if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
1266 508 // Set flag to use fallback system
1267 509 update_option('mxchat_use_fallback_rate_limits', true);
1268 510 update_option('mxchat_next_rate_limit_check', time() + 3600);
1269 - // Deliberately NO early return (plan-bc08a6): transcript cleanup below
1270 - // must still be scheduled. DISABLE_WP_CRON only changes HOW cron events
1271 - // execute (a server-side runner hitting wp-cron.php instead of loopback
1272 - // spawns) — scheduling still just writes the cron option. The old early
1273 - // return here meant a deactivate/reactivate cycle on a DISABLE_WP_CRON
1274 - // site permanently lost the transcript cleanup event while the retention
1275 - // setting still claimed to be active.
511 + return;
512 + }
513 +
514 + // Schedule the rate limit reset cron job
515 + $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
516 +
517 + if ($result === false) {
518 + // Fallback if scheduling fails
519 + update_option('mxchat_use_fallback_rate_limits', true);
520 + update_option('mxchat_next_rate_limit_check', time() + 3600);
1276 521 } else {
1277 - // Schedule the rate limit reset cron job
1278 - $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
1279 -
1280 - if ($result === false) {
1281 - // Fallback if scheduling fails
1282 - update_option('mxchat_use_fallback_rate_limits', true);
1283 - update_option('mxchat_next_rate_limit_check', time() + 3600);
1284 - } else {
1285 - // Clear fallback flags if cron scheduling succeeded
1286 - delete_option('mxchat_use_fallback_rate_limits');
1287 - }
522 + // Clear fallback flags if cron scheduling succeeded
523 + delete_option('mxchat_use_fallback_rate_limits');
1288 524 }
1289 -
1290 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
1291 - $transcript_options = get_option('mxchat_transcripts_options', array());
1292 - $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1293 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1294 -
1295 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
1296 - // Check if not already scheduled
1297 - if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1298 - // Schedule to run daily at 3 AM
1299 - $next_run = strtotime('tomorrow 3:00 AM');
1300 - wp_schedule_event($next_run, 'daily', 'mxchat_cleanup_old_transcripts');
1301 - }
1302 - }
1303 525 }
1304 526
1305 527 /**
1306 528 * Clean up on plugin deactivation
@@ -1307,10 +529,8 @@
1307 529 */
1308 530 function mxchat_deactivate() {
1309 531 // Clear scheduled cron jobs
1310 532 wp_clear_scheduled_hook('mxchat_reset_rate_limits');
1311 - wp_clear_scheduled_hook('mxchat_cleanup_old_transcripts');
1312 - wp_clear_scheduled_hook('mxchat_send_delayed_transcript');
1313 533
1314 534 // Clear fallback options
1315 535 delete_option('mxchat_use_fallback_rate_limits');
1316 536 delete_option('mxchat_next_rate_limit_check');
@@ -1330,25 +550,17 @@
1330 550 return;
1331 551 }
1332 552
1333 553 $next_check = get_option('mxchat_next_rate_limit_check', 0);
1334 -
554 +
1335 555 if (time() >= $next_check) {
1336 - // Reuse the bootstrap's integrator — mxchat_init() creates the global on
1337 - // plugins_loaded (before this init-priority-5 callback), so it's always set
1338 - // here. Constructing a second MxChat_Integrator just to call one method
1339 - // re-registers every hook the plugin has (ajax pairs, wp_footer loader,
1340 - // rest_api_init, admin_init guard) on a duplicate instance for the rest of
1341 - // the request. Defensive construction only if the global is somehow unset.
1342 - // NOTE: MxChat_Integrator::check_fallback_rate_limits() is a second
1343 - // implementation of this same check — if either changes, change both.
1344 - global $mxchat_integrator;
1345 - $integrator = ($mxchat_integrator instanceof MxChat_Integrator)
1346 - ? $mxchat_integrator
1347 - : (class_exists('MxChat_Integrator') ? new MxChat_Integrator() : null);
1348 - if ($integrator && method_exists($integrator, 'mxchat_reset_rate_limits')) {
1349 - $integrator->mxchat_reset_rate_limits();
1350 - update_option('mxchat_next_rate_limit_check', time() + 3600);
556 + // Only run reset if the MxChat_Integrator class exists
557 + if (class_exists('MxChat_Integrator')) {
558 + $integrator = new MxChat_Integrator();
559 + if (method_exists($integrator, 'mxchat_reset_rate_limits')) {
560 + $integrator->mxchat_reset_rate_limits();
561 + update_option('mxchat_next_rate_limit_check', time() + 3600);
562 + }
1351 563 }
1352 564 }
1353 565 }
1354 566
@@ -1360,9 +572,9 @@
1360 572 global $wpdb;
1361 573
1362 574 try {
1363 575 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1364 - $plugin_version = MXCHAT_BASE_VERSION;
576 + $plugin_version = MXCHAT_VERSION;
1365 577
1366 578 // Always ensure critical tables exist (even if version matches)
1367 579 // This handles manual table deletion or fresh installs
1368 580 $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
@@ -1378,14 +590,11 @@
1378 590
1379 591 // Version-specific migrations
1380 592 if ($current_version !== $plugin_version) {
1381 593 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1382 -
594 +
1383 595 // Run live agent update BEFORE updating the stored version
1384 596 mxchat_handle_live_agent_update();
1385 -
1386 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1387 - mxchat_handle_theme_migration_notice();
1388 597
1389 598 // Run role restriction migration for 2.4.1
1390 599 if (version_compare($current_version, '2.4.1', '<')) {
1391 600 mxchat_add_role_restriction_column();
@@ -1406,67 +615,9 @@
1406 615 mxchat_create_queue_tables();
1407 616 mxchat_fix_url_column_size(); // NEW: Fix URL column size for long URLs
1408 617 //error_log("MxChat: Queue tables created and URL columns updated for upgrade to 2.5.2");
1409 618 }
1410 -
1411 - // 2.6.0: Ensure rag_context column exists for retrieved documents feature
1412 - if (version_compare($current_version, '2.6.0', '<')) {
1413 - $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1414 - mxchat_ensure_all_columns($chat_table);
1415 - //error_log("MxChat: rag_context column migration for 2.6.0");
1416 - }
1417 -
1418 - // 3.0.5: Migrate deprecated Gemini embedding model
1419 - if (version_compare($current_version, '3.0.5', '<')) {
1420 - mxchat_migrate_gemini_embedding_model();
1421 - }
1422 -
1423 - // 3.0.6: Migrate deprecated OpenAI and Claude models
1424 - if (version_compare($current_version, '3.0.6', '<')) {
1425 - mxchat_migrate_deprecated_models();
1426 - }
1427 -
1428 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1429 - if (version_compare($current_version, '3.1.2', '<')) {
1430 - mxchat_migrate_transcripts_charset();
1431 - }
1432 -
1433 - // 3.1.7: Clean up stale shared session email/name entries
1434 - if (version_compare($current_version, '3.1.7', '<')) {
1435 - delete_option('mxchat_email_null');
1436 - delete_option('mxchat_name_null');
1437 - }
1438 -
1439 - // 3.2.4: Backfill active embedding model option for the warning UI
1440 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1441 - if (version_compare($current_version, '3.2.4', '<')) {
1442 - mxchat_backfill_active_embedding_model();
1443 - }
1444 -
1445 - // 3.2.15: Migrate retired DeepSeek ids (deepseek-chat / deepseek-reasoner
1446 - // were shut off at the vendor on 2026-07-24). The function is idempotent —
1447 - // it only rewrites models on its deprecation lists.
1448 - if (version_compare($current_version, '3.2.15', '<')) {
1449 - mxchat_migrate_deprecated_models();
1450 - }
1451 -
1452 - // 3.2.16: Migrate OpenAI ids retiring 2026-08-10 (gpt-5.1-chat-latest /
1453 - // gpt-5.3-chat-latest → gpt-5.6-sol per OpenAI's deprecations page).
1454 - // Idempotent — only rewrites models on the deprecation lists (e46b8f).
1455 - if (version_compare($current_version, '3.2.16', '<')) {
1456 - mxchat_migrate_deprecated_models();
1457 - }
1458 -
1459 - // 3.2.17: Credential options must not autoload (af2400) — the two
1460 - // Pinecone-secret-holding rows were in alloptions, i.e. read into
1461 - // memory on every request including anonymous page views. Idempotent.
1462 - // Also carry the import modal's remembered ACF→PDF checkbox state
1463 - // into the new install-level option (11720c).
1464 - if (version_compare($current_version, '3.2.17', '<')) {
1465 - mxchat_fix_credential_option_autoload();
1466 - mxchat_migrate_acf_pdf_extraction_option();
1467 - }
1468 -
619 +
1469 620 // Run full activation to ensure everything is up to date
1470 621 mxchat_activate();
1471 622
1472 623 // Run migration functions
@@ -1489,67 +640,8 @@
1489 640 }
1490 641 }
1491 642
1492 643 /**
1493 - * Credential options must never enter the autoloaded alloptions set.
1494 - * mxchat_prompts_options and mxchat_pinecone_addon_options can hold the
1495 - * Pinecone API secret; mxchat_options already stores its keys with autoload
1496 - * off and these two must match it. The filter covers every future
1497 - * add_option()/update_option() that creates the row — Settings API saves
1498 - * through options.php and WP-CLI included — on WP 6.6+; older cores are
1499 - * covered by the explicit autoload arguments at the plugin's own write
1500 - * sites plus the one-time migration below.
1501 - */
1502 -add_filter('wp_default_autoload_value', 'mxchat_credential_option_autoload_value', 10, 2);
1503 -function mxchat_credential_option_autoload_value($autoload, $option) {
1504 - if (in_array($option, array('mxchat_prompts_options', 'mxchat_pinecone_addon_options'), true)) {
1505 - return false;
1506 - }
1507 - return $autoload;
1508 -}
1509 -
1510 -/**
1511 - * One-time upgrade migration: flip the autoload flag on credential option
1512 - * rows that existing installs are already carrying autoloaded. Includes
1513 - * mxchat_adv_api_token (Advanced Content bearer token) — harmless no-op
1514 - * when that add-on is not installed, since missing rows simply don't match.
1515 - */
1516 -function mxchat_fix_credential_option_autoload() {
1517 - $keys = array('mxchat_prompts_options', 'mxchat_pinecone_addon_options', 'mxchat_adv_api_token');
1518 - if (function_exists('wp_set_option_autoload_values')) {
1519 - wp_set_option_autoload_values(array_fill_keys($keys, false));
1520 - return;
1521 - }
1522 - // Pre-WP-6.4 fallback: direct flip + cache invalidation.
1523 - global $wpdb;
1524 - $placeholders = implode(',', array_fill(0, count($keys), '%s'));
1525 - $wpdb->query($wpdb->prepare("UPDATE {$wpdb->options} SET autoload = 'no' WHERE option_name IN ($placeholders)", $keys));
1526 - wp_cache_delete('alloptions', 'options');
1527 - foreach ($keys as $key) {
1528 - wp_cache_delete($key, 'options');
1529 - }
1530 -}
1531 -
1532 -/**
1533 - * One-time carry of the import modal's remembered ACF→PDF checkbox state
1534 - * (mxchat_options['acf_pdf_extract_default'], written per-import until 3.2.16)
1535 - * into the new install-level option mxchat_acf_pdf_extraction (plan 11720c).
1536 - * Fresh installs and installs that never touched the checkbox default OFF,
1537 - * matching the setting's own "recommended only if…" guidance.
1538 - */
1539 -function mxchat_migrate_acf_pdf_extraction_option() {
1540 - if (get_option('mxchat_acf_pdf_extraction', null) !== null) {
1541 - return; // already set — never overwrite an owner's choice
1542 - }
1543 - $mxchat_options = get_option('mxchat_options', array());
1544 - if (is_array($mxchat_options) && array_key_exists('acf_pdf_extract_default', $mxchat_options)) {
1545 - update_option('mxchat_acf_pdf_extraction', !empty($mxchat_options['acf_pdf_extract_default']) ? '1' : '0', false);
1546 - unset($mxchat_options['acf_pdf_extract_default']);
1547 - update_option('mxchat_options', $mxchat_options);
1548 - }
1549 -}
1550 -
1551 -/**
1552 644 * Ensure tables exist on every admin load for fresh installations
1553 645 * This is a safety net for cases where activation hook doesn't fire
1554 646 */
1555 647 function mxchat_ensure_tables_exist() {
@@ -1657,59 +749,31 @@
1657 749 function mxchat_handle_live_agent_update() {
1658 750 // Get the CURRENT stored version (before it gets updated)
1659 751 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1660 752 $new_version = '2.2.2';
1661 -
753 +
1662 754 // Only run this once for the update to 2.2.2
1663 755 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1664 -
756 +
1665 757 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1666 758 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1667 759 $options = get_option('mxchat_options', array());
1668 -
760 +
1669 761 // Check if live agent was previously enabled
1670 762 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1671 763 // Disable live agent
1672 764 $options['live_agent_status'] = 'off';
1673 765 update_option('mxchat_options', $options);
1674 -
766 +
1675 767 // Set flag to show the notification banner
1676 768 update_option('mxchat_show_live_agent_disabled_notice', true);
1677 769 }
1678 -
770 +
1679 771 // Mark this update as handled
1680 772 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1681 773 }
1682 774 }
1683 775
1684 -/**
1685 - * Handle theme migration notice for version 3.0.1
1686 - * Shows a dismissible notice to Pro users about migrating AI-generated themes
1687 - */
1688 -function mxchat_handle_theme_migration_notice() {
1689 - // Get the CURRENT stored version (before it gets updated)
1690 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1691 - $target_version = '3.0.1';
1692 -
1693 - // Only run this once for the update to 3.0.1
1694 - $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
1695 -
1696 - // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1697 - if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1698 - // Check if Pro is activated - only show to Pro users
1699 - $license_status = get_option('mxchat_license_status', 'inactive');
1700 - $is_pro = ($license_status === 'active');
1701 -
1702 - if ($is_pro) {
1703 - // Set flag to show the theme migration notification banner
1704 - update_option('mxchat_show_theme_migration_notice', true);
1705 - }
1706 -
1707 - // Mark this update as handled (whether Pro or not)
1708 - update_option('mxchat_theme_migration_update_3_0_1_handled', true);
1709 - }
1710 -}
1711 -
1712 776 // Initialize plugin safely
1713 777 function mxchat_init() {
1714 778 // Include all class files first
1715 779 mxchat_include_classes();
@@ -1724,9 +788,8 @@
1724 788 add_action('init', 'mxchat_check_fallback_rate_limits', 5);
1725 789
1726 790 // Add migration notice hook
1727 791 add_action('admin_notices', 'mxchat_show_migration_notice');
1728 - add_action('admin_notices', 'mxchat_show_model_access_notice');
1729 792
1730 793 // Initialize classes with error handling
1731 794 try {
1732 795 // Initialize admin classes
@@ -1742,32 +805,10 @@
1742 805 // Initialize meta box class
1743 806 if (class_exists('MxChat_Meta_Box')) {
1744 807 new MxChat_Meta_Box();
1745 808 }
1746 -
1747 809 }
1748 -
1749 - // Initialize content generator globally — it registers wp_head hook
1750 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1751 - if (class_exists('MxChat_Content_Generator')) {
1752 - new MxChat_Content_Generator();
1753 - }
1754 -
1755 - // Initialize cache purge globally — settings writes can happen on any
1756 - // request type (admin screens, admin-ajax autosave, wp-cli), and the
1757 - // deferred-purge cron event fires on front-end requests.
1758 - if (class_exists('MxChat_Cache_Purge')) {
1759 - MxChat_Cache_Purge::init();
1760 - }
1761 -
1762 - // Initialize REST API globally — endpoints must be registered on
1763 - // every request (admin and frontend) so they're reachable via /wp-json/.
1764 - // Endpoints are auth-gated and locked until the site owner generates
1765 - // a token in MxChat → API Access.
1766 - if (class_exists('MxChat_Rest_Api')) {
1767 - new MxChat_Rest_Api();
1768 - }
1769 -
810 +
1770 811 // Initialize public classes
1771 812 if (class_exists('MxChat_Public')) {
1772 813 $mxchat_public = new MxChat_Public();
1773 814 }
@@ -1794,74 +835,8 @@
1794 835
1795 836 // Run initialization on plugins_loaded
1796 837 add_action('plugins_loaded', 'mxchat_init');
1797 838
1798 -// Run migration check on admin init (for auto-updates without reactivation)
1799 -add_action('admin_init', 'mxchat_check_and_run_migrations');
1800 -
1801 -/**
1802 - * Check and run migrations on admin init
1803 - * This ensures migrations run even when plugin is auto-updated
1804 - */
1805 -function mxchat_check_and_run_migrations() {
1806 - // Only run in admin and not on every request
1807 - static $checked = false;
1808 - if ($checked) {
1809 - return;
1810 - }
1811 - $checked = true;
1812 -
1813 - mxchat_migrate_pinecone_roles_add_bot_id();
1814 - mxchat_migrate_add_content_type_column();
1815 - mxchat_migrate_add_translations_table();
1816 - mxchat_migrate_add_session_ratings_table();
1817 -}
1818 -
1819 -/**
1820 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1821 - * For users upgrading from versions before 3.2.6
1822 - */
1823 -function mxchat_migrate_add_session_ratings_table() {
1824 - $migration_key = 'mxchat_session_ratings_table_created';
1825 - if (get_option($migration_key)) {
1826 - return;
1827 - }
1828 - mxchat_create_session_ratings_table();
1829 - update_option($migration_key, '3.2.6');
1830 -}
1831 -
1832 -/**
1833 - * Migration: Create transcript translations table (v3.0.4)
1834 - * For users upgrading from versions before 3.0.4
1835 - */
1836 -function mxchat_migrate_add_translations_table() {
1837 - $migration_key = 'mxchat_translations_table_created';
1838 -
1839 - // Check if migration already ran
1840 - if (get_option($migration_key)) {
1841 - return;
1842 - }
1843 -
1844 - // Create the translations table
1845 - mxchat_create_translations_table();
1846 -
1847 - // Mark migration as complete
1848 - update_option($migration_key, '3.0.4');
1849 -}
1850 -
1851 -/**
1852 - * Migration: Update deprecated Gemini embedding model (v3.0.5)
1853 - * Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected
1854 - */
1855 -function mxchat_migrate_gemini_embedding_model() {
1856 - $options = get_option('mxchat_options', array());
1857 -
1858 - if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') {
1859 - $options['embedding_model'] = 'gemini-embedding-001';
1860 - update_option('mxchat_options', $options);
1861 - }
1862 -}
1863 -
1864 839 // Register activation hook
1865 840 register_activation_hook(__FILE__, 'mxchat_activate');
1866 841
1867 842 // Add cron schedule
@@ -1873,67 +848,5 @@
1873 848 return $schedules;
1874 849 });
1875 850
1876 851 // Register deactivation hook
1877 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1878 -
1879 -/**
1880 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1881 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1882 - * session_id makes this naturally idempotent — only the first rating per
1883 - * session is stored; duplicate POSTs are silent no-ops.
1884 - */
1885 -function mxchat_save_session_rating() {
1886 - global $wpdb;
1887 -
1888 - $session_id = isset($_POST['session_id']) ? MxChat_Utils::sanitize_session_id(wp_unslash($_POST['session_id'])) : '';
1889 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1890 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1891 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1892 -
1893 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1894 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1895 - }
1896 -
1897 - if (strlen($feedback) > 1000) {
1898 - $feedback = substr($feedback, 0, 1000);
1899 - }
1900 -
1901 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1902 - $existing = $wpdb->get_var($wpdb->prepare(
1903 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1904 - $session_id
1905 - ));
1906 -
1907 - if ($existing) {
1908 - if ($feedback !== '') {
1909 - $wpdb->update(
1910 - $table_name,
1911 - array('rating_feedback' => $feedback),
1912 - array('id' => (int) $existing),
1913 - array('%s'),
1914 - array('%d')
1915 - );
1916 - }
1917 - wp_send_json_success(array('updated' => true));
1918 - }
1919 -
1920 - $inserted = $wpdb->insert(
1921 - $table_name,
1922 - array(
1923 - 'session_id' => $session_id,
1924 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1925 - 'rating_value' => $rating_raw,
1926 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1927 - 'created_at' => current_time('mysql'),
1928 - ),
1929 - array('%s', '%s', '%d', '%s', '%s')
1930 - );
1931 -
1932 - if ($inserted === false) {
1933 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1934 - }
1935 -
1936 - wp_send_json_success(array('saved' => true));
1937 -}
1938 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1939 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
852 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');