PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / 3.0.8
MxChat – AI Chatbot & Content Generation for WordPress v3.0.8
3.2.21 3.2.20 3.2.19 3.2.18 3.2.17 3.2.16 3.2.15 3.2.14 3.2.12 3.2.13 3.2.11 3.2.10 3.2.9 3.2.8 3.2.7 3.2.6 3.2.5 3.2.4 3.2.3 3.2.2 3.2.1 2.0.3 2.0.4 2.0.5 2.0.6 All 152 releases
← All changes | mxchat-basic.php +50 -644 3.2.153.0.8 View file →
@@ -2,9 +2,9 @@
2 2 /**
3 3 * Plugin Name: MxChat
4 4 * Plugin URI: https://mxchat.ai/
5 5 * Description: AI chatbot for WordPress with OpenAI, Claude, xAI, DeepSeek, live agent, PDF uploads, WooCommerce, and training on website data.
6 - * Version: 3.2.15
6 + * Version: 3.0.8
7 7 * Author: MxChat
8 8 * Author URI: https://mxchat.ai
9 9 * License: GPLv2 or later
10 10 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
@@ -15,49 +15,15 @@
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 27 $domain = 'mxchat';
62 28 $locale = determine_locale();
63 29
@@ -73,347 +39,67 @@
73 39 }
74 40 add_action('init', 'mxchat_load_textdomain');
75 41
76 42 /**
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', $opts);
147 - }
148 - }
149 - update_option('mxchat_claude_4_retire_remap_done', 1);
150 -});
151 -
152 -/**
153 43 * Exclude MxChat assets from caching plugin optimizations
154 44 *
155 - * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache,
156 - * W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by
157 - * removing "unused" CSS, minifying/combining JS, or deferring/delaying jQuery.
158 - *
159 - * Both chat-script.js and floating-script.js depend on jQuery, so jQuery must also
160 - * be excluded from any optimization that changes load order or timing.
45 + * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, and similar
46 + * plugins that may break the chatbot by removing "unused" CSS or deferring JS.
161 47 */
162 48
163 -// ── WP Rocket ────────────────────────────────────────────────────────────────
164 -
165 -// Exclude from Remove Unused CSS (RUCSS)
49 +// WP Rocket - Exclude from Remove Unused CSS (RUCSS)
166 50 add_filter('rocket_rucss_inline_atts_exclusions', function($exclusions) {
167 - if (!is_array($exclusions)) $exclusions = array();
168 51 $exclusions[] = 'mxchat';
169 52 return $exclusions;
170 53 });
171 54
172 -// Exclude CSS from minification/combination
55 +// WP Rocket - Exclude CSS from minification/combination
173 56 add_filter('rocket_exclude_css', function($excluded) {
174 - if (!is_array($excluded)) $excluded = array();
175 57 $excluded[] = '/plugins/mxchat-basic/css/chat-style.css';
176 58 return $excluded;
177 59 });
178 60
179 -// Exclude JS from minification/combination
61 +// WP Rocket - Exclude JS from minification/combination/defer
180 62 add_filter('rocket_exclude_js', function($excluded) {
181 - if (!is_array($excluded)) $excluded = array();
182 63 $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 64 return $excluded;
189 65 });
190 66
191 -// Exclude JS from defer
192 67 add_filter('rocket_exclude_defer_js', function($excluded) {
193 - if (!is_array($excluded)) $excluded = array();
194 68 $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 69 return $excluded;
201 70 });
202 71
203 -// Exclude from delay JS execution
72 +// WP Rocket - Exclude from delay JS execution
204 73 add_filter('rocket_delay_js_exclusions', function($excluded) {
205 - if (!is_array($excluded)) $excluded = array();
206 74 $excluded[] = 'mxchat';
207 75 $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 76 return $excluded;
214 77 });
215 78
216 -// ── LiteSpeed Cache ──────────────────────────────────────────────────────────
217 -
218 -// Exclude CSS from optimization
79 +// LiteSpeed Cache - Exclude from optimization
219 80 add_filter('litespeed_optimize_css_excludes', function($excluded) {
220 - if (!is_array($excluded)) $excluded = array();
221 81 $excluded[] = 'chat-style.css';
222 - $excluded[] = 'mxchat';
223 82 return $excluded;
224 83 });
225 84
226 -// Exclude from UCSS (Unique CSS) - prevents LiteSpeed from stripping "unused" MxChat CSS
227 -add_filter('litespeed_ucss_whitelist', function($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 $excluded;
254 -});
255 -
256 -// Exclude JS from defer
257 85 add_filter('litespeed_optm_js_defer_exc', function($excluded) {
258 - if (!is_array($excluded)) $excluded = array();
259 86 $excluded[] = 'chat-script.js';
260 - $excluded[] = 'floating-script.js';
261 - $excluded[] = 'mxchat';
262 - $excluded[] = 'jquery.min.js';
263 - $excluded[] = 'jquery.js';
264 87 return $excluded;
265 88 });
266 89
267 -// Exclude JS from combining
268 -add_filter('litespeed_optm_js_exc', function($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 $excluded;
295 -});
296 -
297 -// ── Autoptimize ──────────────────────────────────────────────────────────────
298 -
299 -// Exclude CSS from optimization (comma-separated strings)
90 +// Autoptimize - Exclude from optimization
300 91 add_filter('autoptimize_filter_css_exclude', function($excluded) {
301 - if (!is_string($excluded)) $excluded = '';
302 92 return $excluded . ', mxchat, chat-style.css';
303 93 });
304 94
305 -// Exclude JS from optimization (comma-separated strings)
306 95 add_filter('autoptimize_filter_js_exclude', function($excluded) {
307 - if (!is_string($excluded)) $excluded = '';
308 - return $excluded . ', mxchat, chat-script.js, floating-script.js, jquery.min.js, jquery.js';
96 + return $excluded . ', mxchat, chat-script.js';
309 97 });
310 98
311 -// ── SG Optimizer (SiteGround) ────────────────────────────────────────────────
312 -
313 -add_filter('sgo_js_minify_exclude', function($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 99 // Include classes with error handling
411 100 function mxchat_include_classes() {
412 101 $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',
416 102 'includes/class-mxchat-integrator.php',
417 103 'includes/class-mxchat-admin.php',
418 104 'includes/class-mxchat-public.php',
419 105 'includes/class-mxchat-utils.php',
@@ -419,13 +105,10 @@
419 105 'includes/class-mxchat-utils.php',
420 106 'includes/class-mxchat-user.php',
421 107 'includes/class-mxchat-meta-box.php',
422 108 'includes/class-mxchat-chunker.php',
109 + 'includes/pdf-parser/alt_autoload.php',
423 110 'includes/class-mxchat-word-handler.php',
424 - 'includes/class-mxchat-content-generator.php',
425 - 'includes/class-mxchat-cache-purge.php',
426 - 'includes/class-mxchat-editor-assistant.php',
427 - 'includes/class-rest-api.php',
428 111 'admin/class-ajax-handler.php',
429 112 'admin/class-pinecone-manager.php',
430 113 'admin/class-knowledge-manager.php'
431 114 );
@@ -437,57 +120,11 @@
437 120 } else {
438 121 //error_log('MxChat: Missing class file - ' . $file);
439 122 }
440 123 }
441 -
442 - // Register the native function-calling admin-post save handler (a41dee).
443 - if (class_exists('MxChat_Tool_Registry')) {
444 - MxChat_Tool_Registry::init();
445 - }
446 -
447 - // Editor Assistant — free, OFF-by-default block-editor AI actions (plan-8cb0cb).
448 - // init() wires REST + streaming AJAX + sidebar enqueue ONLY when the
449 - // mxchat_editor_assistant_enabled option is 'on'; otherwise zero footprint.
450 - if (class_exists('MxChat_Editor_Assistant')) {
451 - MxChat_Editor_Assistant::init();
452 - }
453 -
454 - // Admin pages that aren't classes (procedural include).
455 - if (is_admin()) {
456 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
457 - if (file_exists($admin_api_page)) {
458 - require_once $admin_api_page;
459 - }
460 - // f7c7d4 renamed this file admin-dashboard-page.php → admin-onboarding-page.php.
461 - // The require MUST live here (admin bootstrap) and not just inside
462 - // mxchat_add_plugin_page() on the admin_menu hook — admin_menu does NOT
463 - // fire on admin-ajax.php requests, so the wizard's AJAX handlers
464 - // (plan-905439: mxchat_onboarding_kb_status / save_step / mark_step /
465 - // auto_graduate + the f7c7d4 dismiss handler) would never register.
466 - $admin_onboarding_page = plugin_dir_path(__FILE__) . 'includes/admin-onboarding-page.php';
467 - if (file_exists($admin_onboarding_page)) {
468 - require_once $admin_onboarding_page;
469 - }
470 - }
471 124 }
472 125
473 126 /**
474 - * Lazy-load the PDF parser library only when needed.
475 - * Avoids loading 44 files on every page request.
476 - */
477 -function mxchat_load_pdf_parser() {
478 - if (class_exists('\Smalot\PdfParser\Parser')) {
479 - return true;
480 - }
481 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
482 - if (file_exists($autoload_path)) {
483 - require_once $autoload_path;
484 - return true;
485 - }
486 - return false;
487 -}
488 -
489 -/**
490 127 * Create URL click tracking table
491 128 */
492 129 function mxchat_create_url_clicks_table() {
493 130 global $wpdb;
@@ -755,9 +392,9 @@
755 392
756 393 // Add index for bot_id
757 394 $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
758 395
759 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
396 + error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
760 397 }
761 398
762 399 // Mark migration as complete
763 400 update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
@@ -792,9 +429,9 @@
792 429
793 430 // Add index for better query performance
794 431 $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
795 432
796 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
433 + error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
797 434 }
798 435
799 436 // Mark migration as complete
800 437 update_option('mxchat_content_type_migration_version', '2.5.6');
@@ -800,33 +437,8 @@
800 437 update_option('mxchat_content_type_migration_version', '2.5.6');
801 438 }
802 439
803 440 /**
804 - * 3.2.4: Backfill the active embedding model option for installs that already
805 - * have KB content but no stamped model. The mismatch warning compares this
806 - * against the user's currently selected model — no per-row column needed.
807 - */
808 -function mxchat_backfill_active_embedding_model() {
809 - global $wpdb;
810 -
811 - if (get_option('mxchat_active_embedding_model', '') !== '') {
812 - return;
813 - }
814 -
815 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
816 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
817 - return;
818 - }
819 -
820 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
821 - if ($kb_count > 0) {
822 - $options = get_option('mxchat_options', array());
823 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
824 - update_option('mxchat_active_embedding_model', $current_model, false);
825 - }
826 -}
827 -
828 -/**
829 441 * 2.5.2: Create queue processing tables for reliable background processing
830 442 */
831 443 function mxchat_create_queue_tables() {
832 444 global $wpdb;
@@ -898,34 +510,8 @@
898 510 dbDelta($sql);
899 511 }
900 512
901 513 /**
902 - * Create per-session satisfaction ratings table (v3.2.6)
903 - * Stores one 👍/👎 rating + optional feedback per chat session.
904 - */
905 -function mxchat_create_session_ratings_table() {
906 - global $wpdb;
907 - $charset_collate = $wpdb->get_charset_collate();
908 -
909 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
910 - $sql = "CREATE TABLE $table_name (
911 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
912 - session_id varchar(255) NOT NULL,
913 - bot_id varchar(50) NOT NULL DEFAULT 'default',
914 - rating_value tinyint(1) NOT NULL,
915 - rating_feedback text DEFAULT NULL,
916 - created_at datetime NOT NULL,
917 - PRIMARY KEY (id),
918 - UNIQUE KEY session_id (session_id),
919 - KEY bot_id (bot_id),
920 - KEY created_at (created_at)
921 - ) $charset_collate;";
922 -
923 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
924 - dbDelta($sql);
925 -}
926 -
927 -/**
928 514 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
929 515 * This fixes "url, source_url. The supplied values may be too long" errors
930 516 */
931 517 function mxchat_fix_url_column_size() {
@@ -948,18 +534,8 @@
948 534
949 535 /**
950 536 * Migrate deprecated AI models to their replacements
951 537 * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
952 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
953 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
954 - */
955 -function mxchat_migrate_transcripts_charset() {
956 - global $wpdb;
957 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
958 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
959 -}
960 -
961 -/**
962 538 * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
963 539 */
964 540 function mxchat_migrate_deprecated_models() {
965 541 $options = get_option('mxchat_options', array());
@@ -984,9 +560,9 @@
984 560 if (in_array($current_model, $deprecated_claude_models, true)) {
985 561 $options['model'] = 'claude-opus-4-6';
986 562 $migrated = true;
987 563 $migration_message = sprintf(
988 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
564 + __('Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.', 'mxchat'),
989 565 $current_model
990 566 );
991 567 }
992 568
@@ -993,9 +569,9 @@
993 569 // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
994 570 if ($current_model === 'claude-3-5-haiku-20241022') {
995 571 $options['model'] = 'claude-haiku-4-5-20251001';
996 572 $migrated = true;
997 - $migration_message = 'Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.';
573 + $migration_message = __('Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.', 'mxchat');
998 574 }
999 575
1000 576 // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest
1001 577 if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
@@ -1001,9 +577,9 @@
1001 577 if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
1002 578 $options['model'] = 'gpt-5.1-chat-latest';
1003 579 $migrated = true;
1004 580 $migration_message = sprintf(
1005 - 'Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.',
581 + __('Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.', 'mxchat'),
1006 582 $current_model
1007 583 );
1008 584 }
1009 585
@@ -1011,26 +587,13 @@
1011 587 if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
1012 588 $options['model'] = 'gpt-5-mini';
1013 589 $migrated = true;
1014 590 $migration_message = sprintf(
1015 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
591 + __('Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.', 'mxchat'),
1016 592 $current_model
1017 593 );
1018 594 }
1019 595
1020 - // Migrate retired DeepSeek ids to DeepSeek V4 Flash — the vendor removed
1021 - // deepseek-chat and deepseek-reasoner on 2026-07-24 (hard cutoff, every
1022 - // request 400s). V4 Flash is DeepSeek's designated successor for the
1023 - // legacy deepseek-chat alias.
1024 - if (in_array($current_model, array('deepseek-chat', 'deepseek-reasoner'), true)) {
1025 - $options['model'] = 'deepseek-v4-flash';
1026 - $migrated = true;
1027 - $migration_message = sprintf(
1028 - 'Your chatbot model has been automatically updated from %s to DeepSeek V4 Flash because DeepSeek retired its older API models on July 24, 2026.',
1029 - $current_model
1030 - );
1031 - }
1032 -
1033 596 if ($migrated) {
1034 597 update_option('mxchat_options', $options);
1035 598 update_option('mxchat_model_migrated_notice', true);
1036 599 update_option('mxchat_model_migration_message', $migration_message);
@@ -1093,26 +656,13 @@
1093 656 enabled_bots LONGTEXT DEFAULT NULL,
1094 657 PRIMARY KEY (id)
1095 658 ) $charset_collate;";
1096 659
1097 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
1098 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
1099 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
1100 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1101 - intent_id BIGINT(20) UNSIGNED NOT NULL,
1102 - phrase TEXT NOT NULL,
1103 - embedding_vector LONGTEXT NOT NULL,
1104 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1105 - PRIMARY KEY (id),
1106 - KEY intent_id (intent_id)
1107 - ) $charset_collate;";
1108 -
1109 660 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1110 661
1111 662 // Create other tables
1112 663 dbDelta($sql_system_prompt);
1113 664 dbDelta($sql_intents_table);
1114 - dbDelta($sql_intent_phrases_table);
1115 665
1116 666 // Create URL click tracking table
1117 667 mxchat_create_url_clicks_table();
1118 668
@@ -1124,11 +674,8 @@
1124 674
1125 675 // Create transcript translations table
1126 676 mxchat_create_translations_table();
1127 677
1128 - // Create per-session satisfaction ratings table (v3.2.6)
1129 - mxchat_create_session_ratings_table();
1130 -
1131 678 // Ensure additional columns in system prompt table
1132 679 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1133 680 if (!empty($existing_system_columns)) {
1134 681 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1171,17 +718,13 @@
1171 718
1172 719 // Run migration for existing installations
1173 720 mxchat_migrate_pinecone_roles_add_bot_id();
1174 721
1175 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1176 - mxchat_backfill_active_embedding_model();
1177 -
1178 722 // Setup cron jobs
1179 723 mxchat_setup_cron_jobs();
1180 724
1181 - // Update version (stable base version — never the dev time()-suffixed one,
1182 - // or the check_for_update comparison would churn every request)
1183 - update_option('mxchat_plugin_version', MXCHAT_BASE_VERSION);
725 + // Update version
726 + update_option('mxchat_plugin_version', MXCHAT_VERSION);
1184 727
1185 728 //error_log("MxChat: Activation function completed");
1186 729 }
1187 730
@@ -1196,35 +739,28 @@
1196 739 if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
1197 740 // Set flag to use fallback system
1198 741 update_option('mxchat_use_fallback_rate_limits', true);
1199 742 update_option('mxchat_next_rate_limit_check', time() + 3600);
1200 - // Deliberately NO early return (plan-bc08a6): transcript cleanup below
1201 - // must still be scheduled. DISABLE_WP_CRON only changes HOW cron events
1202 - // execute (a server-side runner hitting wp-cron.php instead of loopback
1203 - // spawns) — scheduling still just writes the cron option. The old early
1204 - // return here meant a deactivate/reactivate cycle on a DISABLE_WP_CRON
1205 - // site permanently lost the transcript cleanup event while the retention
1206 - // setting still claimed to be active.
743 + return;
744 + }
745 +
746 + // Schedule the rate limit reset cron job
747 + $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
748 +
749 + if ($result === false) {
750 + // Fallback if scheduling fails
751 + update_option('mxchat_use_fallback_rate_limits', true);
752 + update_option('mxchat_next_rate_limit_check', time() + 3600);
1207 753 } else {
1208 - // Schedule the rate limit reset cron job
1209 - $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
1210 -
1211 - if ($result === false) {
1212 - // Fallback if scheduling fails
1213 - update_option('mxchat_use_fallback_rate_limits', true);
1214 - update_option('mxchat_next_rate_limit_check', time() + 3600);
1215 - } else {
1216 - // Clear fallback flags if cron scheduling succeeded
1217 - delete_option('mxchat_use_fallback_rate_limits');
1218 - }
754 + // Clear fallback flags if cron scheduling succeeded
755 + delete_option('mxchat_use_fallback_rate_limits');
1219 756 }
1220 -
1221 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
757 +
758 + // Schedule transcript cleanup if configured
1222 759 $transcript_options = get_option('mxchat_transcripts_options', array());
1223 760 $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1224 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1225 -
1226 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
761 +
762 + if ($cleanup_interval !== 'never') {
1227 763 // Check if not already scheduled
1228 764 if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1229 765 // Schedule to run daily at 3 AM
1230 766 $next_run = strtotime('tomorrow 3:00 AM');
@@ -1261,25 +797,17 @@
1261 797 return;
1262 798 }
1263 799
1264 800 $next_check = get_option('mxchat_next_rate_limit_check', 0);
1265 -
801 +
1266 802 if (time() >= $next_check) {
1267 - // Reuse the bootstrap's integrator — mxchat_init() creates the global on
1268 - // plugins_loaded (before this init-priority-5 callback), so it's always set
1269 - // here. Constructing a second MxChat_Integrator just to call one method
1270 - // re-registers every hook the plugin has (ajax pairs, wp_footer loader,
1271 - // rest_api_init, admin_init guard) on a duplicate instance for the rest of
1272 - // the request. Defensive construction only if the global is somehow unset.
1273 - // NOTE: MxChat_Integrator::check_fallback_rate_limits() is a second
1274 - // implementation of this same check — if either changes, change both.
1275 - global $mxchat_integrator;
1276 - $integrator = ($mxchat_integrator instanceof MxChat_Integrator)
1277 - ? $mxchat_integrator
1278 - : (class_exists('MxChat_Integrator') ? new MxChat_Integrator() : null);
1279 - if ($integrator && method_exists($integrator, 'mxchat_reset_rate_limits')) {
1280 - $integrator->mxchat_reset_rate_limits();
1281 - update_option('mxchat_next_rate_limit_check', time() + 3600);
803 + // Only run reset if the MxChat_Integrator class exists
804 + if (class_exists('MxChat_Integrator')) {
805 + $integrator = new MxChat_Integrator();
806 + if (method_exists($integrator, 'mxchat_reset_rate_limits')) {
807 + $integrator->mxchat_reset_rate_limits();
808 + update_option('mxchat_next_rate_limit_check', time() + 3600);
809 + }
1282 810 }
1283 811 }
1284 812 }
1285 813
@@ -1291,9 +819,9 @@
1291 819 global $wpdb;
1292 820
1293 821 try {
1294 822 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1295 - $plugin_version = MXCHAT_BASE_VERSION;
823 + $plugin_version = MXCHAT_VERSION;
1296 824
1297 825 // Always ensure critical tables exist (even if version matches)
1298 826 // This handles manual table deletion or fresh installs
1299 827 $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
@@ -1355,32 +883,8 @@
1355 883 if (version_compare($current_version, '3.0.6', '<')) {
1356 884 mxchat_migrate_deprecated_models();
1357 885 }
1358 886
1359 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1360 - if (version_compare($current_version, '3.1.2', '<')) {
1361 - mxchat_migrate_transcripts_charset();
1362 - }
1363 -
1364 - // 3.1.7: Clean up stale shared session email/name entries
1365 - if (version_compare($current_version, '3.1.7', '<')) {
1366 - delete_option('mxchat_email_null');
1367 - delete_option('mxchat_name_null');
1368 - }
1369 -
1370 - // 3.2.4: Backfill active embedding model option for the warning UI
1371 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1372 - if (version_compare($current_version, '3.2.4', '<')) {
1373 - mxchat_backfill_active_embedding_model();
1374 - }
1375 -
1376 - // 3.2.15: Migrate retired DeepSeek ids (deepseek-chat / deepseek-reasoner
1377 - // were shut off at the vendor on 2026-07-24). The function is idempotent —
1378 - // it only rewrites models on its deprecation lists.
1379 - if (version_compare($current_version, '3.2.15', '<')) {
1380 - mxchat_migrate_deprecated_models();
1381 - }
1382 -
1383 887 // Run full activation to ensure everything is up to date
1384 888 mxchat_activate();
1385 889
1386 890 // Run migration functions
@@ -1551,9 +1055,9 @@
1551 1055 // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1552 1056 if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1553 1057 // Check if Pro is activated - only show to Pro users
1554 1058 $license_status = get_option('mxchat_license_status', 'inactive');
1555 - $is_pro = ($license_status === 'active');
1059 + $is_pro = ($license_status === 'active' || $license_status === esc_html__('active', 'mxchat'));
1556 1060
1557 1061 if ($is_pro) {
1558 1062 // Set flag to show the theme migration notification banner
1559 1063 update_option('mxchat_show_theme_migration_notice', true);
@@ -1596,32 +1100,10 @@
1596 1100 // Initialize meta box class
1597 1101 if (class_exists('MxChat_Meta_Box')) {
1598 1102 new MxChat_Meta_Box();
1599 1103 }
1600 -
1601 1104 }
1602 -
1603 - // Initialize content generator globally — it registers wp_head hook
1604 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1605 - if (class_exists('MxChat_Content_Generator')) {
1606 - new MxChat_Content_Generator();
1607 - }
1608 -
1609 - // Initialize cache purge globally — settings writes can happen on any
1610 - // request type (admin screens, admin-ajax autosave, wp-cli), and the
1611 - // deferred-purge cron event fires on front-end requests.
1612 - if (class_exists('MxChat_Cache_Purge')) {
1613 - MxChat_Cache_Purge::init();
1614 - }
1615 -
1616 - // Initialize REST API globally — endpoints must be registered on
1617 - // every request (admin and frontend) so they're reachable via /wp-json/.
1618 - // Endpoints are auth-gated and locked until the site owner generates
1619 - // a token in MxChat → API Access.
1620 - if (class_exists('MxChat_Rest_Api')) {
1621 - new MxChat_Rest_Api();
1622 - }
1623 -
1105 +
1624 1106 // Initialize public classes
1625 1107 if (class_exists('MxChat_Public')) {
1626 1108 $mxchat_public = new MxChat_Public();
1627 1109 }
@@ -1666,25 +1148,11 @@
1666 1148
1667 1149 mxchat_migrate_pinecone_roles_add_bot_id();
1668 1150 mxchat_migrate_add_content_type_column();
1669 1151 mxchat_migrate_add_translations_table();
1670 - mxchat_migrate_add_session_ratings_table();
1671 1152 }
1672 1153
1673 1154 /**
1674 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1675 - * For users upgrading from versions before 3.2.6
1676 - */
1677 -function mxchat_migrate_add_session_ratings_table() {
1678 - $migration_key = 'mxchat_session_ratings_table_created';
1679 - if (get_option($migration_key)) {
1680 - return;
1681 - }
1682 - mxchat_create_session_ratings_table();
1683 - update_option($migration_key, '3.2.6');
1684 -}
1685 -
1686 -/**
1687 1155 * Migration: Create transcript translations table (v3.0.4)
1688 1156 * For users upgrading from versions before 3.0.4
1689 1157 */
1690 1158 function mxchat_migrate_add_translations_table() {
@@ -1727,67 +1195,5 @@
1727 1195 return $schedules;
1728 1196 });
1729 1197
1730 1198 // Register deactivation hook
1731 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1732 -
1733 -/**
1734 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1735 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1736 - * session_id makes this naturally idempotent — only the first rating per
1737 - * session is stored; duplicate POSTs are silent no-ops.
1738 - */
1739 -function mxchat_save_session_rating() {
1740 - global $wpdb;
1741 -
1742 - $session_id = isset($_POST['session_id']) ? sanitize_text_field(wp_unslash($_POST['session_id'])) : '';
1743 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1744 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1745 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1746 -
1747 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1748 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1749 - }
1750 -
1751 - if (strlen($feedback) > 1000) {
1752 - $feedback = substr($feedback, 0, 1000);
1753 - }
1754 -
1755 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1756 - $existing = $wpdb->get_var($wpdb->prepare(
1757 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1758 - $session_id
1759 - ));
1760 -
1761 - if ($existing) {
1762 - if ($feedback !== '') {
1763 - $wpdb->update(
1764 - $table_name,
1765 - array('rating_feedback' => $feedback),
1766 - array('id' => (int) $existing),
1767 - array('%s'),
1768 - array('%d')
1769 - );
1770 - }
1771 - wp_send_json_success(array('updated' => true));
1772 - }
1773 -
1774 - $inserted = $wpdb->insert(
1775 - $table_name,
1776 - array(
1777 - 'session_id' => $session_id,
1778 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1779 - 'rating_value' => $rating_raw,
1780 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1781 - 'created_at' => current_time('mysql'),
1782 - ),
1783 - array('%s', '%s', '%d', '%s', '%s')
1784 - );
1785 -
1786 - if ($inserted === false) {
1787 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1788 - }
1789 -
1790 - wp_send_json_success(array('saved' => true));
1791 -}
1792 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1793 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
1199 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');