| 1 |
<?php |
| 2 |
/** |
| 3 |
* Plugin Name: MxChat |
| 4 |
* Plugin URI: https://mxchat.ai/ |
| 5 |
* Description: AI chatbot for WordPress with OpenAI, Claude, xAI, DeepSeek, live agent, PDF uploads, WooCommerce, and training on website data. |
| 6 |
* Version: 3.1.3 |
| 7 |
* Author: MxChat |
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* Author URI: https://mxchat.ai |
| 9 |
* License: GPLv2 or later |
| 10 |
* License URI: https://www.gnu.org/licenses/gpl-2.0.html |
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* Text Domain: mxchat |
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* Domain Path: /languages |
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*/ |
| 14 |
|
| 15 |
if (!defined('ABSPATH')) { |
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exit; // Exit if accessed directly. |
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} |
| 18 |
|
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// Set to true during development to append a timestamp to the version for cache busting. |
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// Set to false before releasing to production. |
| 21 |
if (!defined('MXCHAT_DEV_MODE')) { |
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define('MXCHAT_DEV_MODE', false); |
| 23 |
} |
| 24 |
|
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// Define plugin version constant for asset versioning |
| 26 |
// Reads version from plugin header automatically |
| 27 |
if (!defined('MXCHAT_VERSION')) { |
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$plugin_data = get_file_data(__FILE__, array('Version' => 'Version'), 'plugin'); |
| 29 |
$version = $plugin_data['Version']; |
| 30 |
if (MXCHAT_DEV_MODE) { |
| 31 |
$version .= '.' . time(); |
| 32 |
} |
| 33 |
define('MXCHAT_VERSION', $version); |
| 34 |
} |
| 35 |
|
| 36 |
function mxchat_load_textdomain() { |
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$domain = 'mxchat'; |
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$locale = determine_locale(); |
| 39 |
|
| 40 |
// First, try to load from /wp-content/languages/plugins/ (preserved during updates) |
| 41 |
$mo_file = WP_LANG_DIR . '/plugins/' . $domain . '-' . $locale . '.mo'; |
| 42 |
if (file_exists($mo_file)) { |
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load_textdomain($domain, $mo_file); |
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return; |
| 45 |
} |
| 46 |
|
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// Fallback to plugin's /languages directory |
| 48 |
load_plugin_textdomain($domain, false, dirname(plugin_basename(__FILE__)) . '/languages'); |
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} |
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add_action('init', 'mxchat_load_textdomain'); |
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|
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/** |
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* Exclude MxChat assets from caching plugin optimizations |
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* |
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* This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache, |
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* W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by |
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* removing "unused" CSS, minifying/combining JS, or deferring/delaying jQuery. |
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* |
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* Both chat-script.js and floating-script.js depend on jQuery, so jQuery must also |
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* be excluded from any optimization that changes load order or timing. |
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*/ |
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|
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// ── WP Rocket ──────────────────────────────────────────────────────────────── |
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|
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// Exclude from Remove Unused CSS (RUCSS) |
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add_filter('rocket_rucss_inline_atts_exclusions', function($exclusions) { |
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if (!is_array($exclusions)) $exclusions = array(); |
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$exclusions[] = 'mxchat'; |
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return $exclusions; |
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}); |
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|
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// Exclude CSS from minification/combination |
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add_filter('rocket_exclude_css', function($excluded) { |
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if (!is_array($excluded)) $excluded = array(); |
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$excluded[] = '/plugins/mxchat-basic/css/chat-style.css'; |
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return $excluded; |
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}); |
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|
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// Exclude JS from minification/combination |
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add_filter('rocket_exclude_js', function($excluded) { |
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if (!is_array($excluded)) $excluded = array(); |
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$excluded[] = '/plugins/mxchat-basic/js/chat-script.js'; |
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$excluded[] = '/plugins/mxchat-basic/js/floating-script.js'; |
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$excluded[] = '/jquery-core'; |
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$excluded[] = '/jquery.min.js'; |
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$excluded[] = '/jquery.js'; |
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$excluded[] = '/jquery-migrate'; |
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return $excluded; |
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}); |
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|
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// Exclude JS from defer |
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add_filter('rocket_exclude_defer_js', function($excluded) { |
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if (!is_array($excluded)) $excluded = array(); |
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$excluded[] = '/plugins/mxchat-basic/js/chat-script.js'; |
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$excluded[] = '/plugins/mxchat-basic/js/floating-script.js'; |
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$excluded[] = '/jquery-core'; |
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$excluded[] = '/jquery.min.js'; |
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$excluded[] = '/jquery.js'; |
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$excluded[] = '/jquery-migrate'; |
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return $excluded; |
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}); |
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|
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// Exclude from delay JS execution |
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add_filter('rocket_delay_js_exclusions', function($excluded) { |
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if (!is_array($excluded)) $excluded = array(); |
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$excluded[] = 'mxchat'; |
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$excluded[] = 'chat-script'; |
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$excluded[] = 'floating-script'; |
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$excluded[] = '/jquery-core'; |
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$excluded[] = '/jquery.min.js'; |
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$excluded[] = '/jquery.js'; |
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$excluded[] = '/jquery-migrate'; |
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return $excluded; |
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}); |
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|
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// ── LiteSpeed Cache ────────────────────────────────────────────────────────── |
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|
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// Exclude CSS from optimization |
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add_filter('litespeed_optimize_css_excludes', function($excluded) { |
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if (!is_array($excluded)) $excluded = array(); |
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$excluded[] = 'chat-style.css'; |
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$excluded[] = 'mxchat'; |
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return $excluded; |
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}); |
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|
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// Exclude from UCSS (Unique CSS) - prevents LiteSpeed from stripping "unused" MxChat CSS |
| 127 |
add_filter('litespeed_ucss_whitelist', function($whitelist) { |
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if (!is_array($whitelist)) $whitelist = array(); |
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$whitelist[] = '.mxchat-chatbot-wrapper'; |
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$whitelist[] = '.floating-chatbot'; |
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$whitelist[] = '.floating-chatbot-button'; |
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$whitelist[] = '.chatbot-top-bar'; |
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$whitelist[] = '.mxchat-chatbot'; |
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$whitelist[] = '.chat-container'; |
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$whitelist[] = '.chat-box'; |
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$whitelist[] = '.bot-message'; |
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$whitelist[] = '.input-container'; |
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$whitelist[] = '.chat-input'; |
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$whitelist[] = '.send-button'; |
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$whitelist[] = '.pre-chat-message'; |
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$whitelist[] = '.mxchat-popular-questions'; |
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$whitelist[] = '.chat-toolbar'; |
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$whitelist[] = '.exit-chat'; |
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$whitelist[] = '.email-blocker'; |
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return $whitelist; |
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}); |
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|
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// Exclude CSS from CCSS (Critical CSS) generation |
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add_filter('litespeed_optm_ccss_exc', function($excluded) { |
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if (!is_array($excluded)) $excluded = array(); |
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$excluded[] = 'chat-style.css'; |
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$excluded[] = 'mxchat'; |
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return $excluded; |
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}); |
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|
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// Exclude JS from defer |
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add_filter('litespeed_optm_js_defer_exc', function($excluded) { |
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if (!is_array($excluded)) $excluded = array(); |
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$excluded[] = 'chat-script.js'; |
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$excluded[] = 'floating-script.js'; |
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$excluded[] = 'mxchat'; |
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$excluded[] = 'jquery.min.js'; |
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$excluded[] = 'jquery.js'; |
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return $excluded; |
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}); |
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|
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// Exclude JS from combining |
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add_filter('litespeed_optm_js_exc', function($excluded) { |
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if (!is_array($excluded)) $excluded = array(); |
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$excluded[] = 'chat-script.js'; |
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$excluded[] = 'floating-script.js'; |
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$excluded[] = 'mxchat'; |
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$excluded[] = 'jquery.min.js'; |
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$excluded[] = 'jquery.js'; |
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return $excluded; |
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}); |
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|
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// Exclude JS from delayed execution |
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add_filter('litespeed_optm_js_delay_exc', function($excluded) { |
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if (!is_array($excluded)) $excluded = array(); |
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$excluded[] = 'chat-script.js'; |
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$excluded[] = 'floating-script.js'; |
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$excluded[] = 'mxchat'; |
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return $excluded; |
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}); |
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|
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// Exclude from Guest Mode optimization |
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add_filter('litespeed_guest_optm_exc', function($excluded) { |
| 189 |
if (!is_array($excluded)) $excluded = array(); |
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$excluded[] = 'mxchat'; |
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$excluded[] = 'chat-style'; |
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$excluded[] = 'chat-script'; |
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$excluded[] = 'floating-script'; |
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return $excluded; |
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}); |
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|
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// ── Autoptimize ────────────────────────────────────────────────────────────── |
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|
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// Exclude CSS from optimization (comma-separated strings) |
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add_filter('autoptimize_filter_css_exclude', function($excluded) { |
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if (!is_string($excluded)) $excluded = ''; |
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return $excluded . ', mxchat, chat-style.css'; |
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}); |
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|
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// Exclude JS from optimization (comma-separated strings) |
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add_filter('autoptimize_filter_js_exclude', function($excluded) { |
| 207 |
if (!is_string($excluded)) $excluded = ''; |
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return $excluded . ', mxchat, chat-script.js, floating-script.js, jquery.min.js, jquery.js'; |
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}); |
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|
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// ── SG Optimizer (SiteGround) ──────────────────────────────────────────────── |
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|
| 213 |
add_filter('sgo_js_minify_exclude', function($excluded) { |
| 214 |
if (!is_array($excluded)) $excluded = array(); |
| 215 |
$excluded[] = 'chat-script.js'; |
| 216 |
$excluded[] = 'floating-script.js'; |
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$excluded[] = 'jquery.min.js'; |
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return $excluded; |
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}); |
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|
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add_filter('sgo_javascript_combine_exclude', function($excluded) { |
| 222 |
if (!is_array($excluded)) $excluded = array(); |
| 223 |
$excluded[] = 'chat-script.js'; |
| 224 |
$excluded[] = 'floating-script.js'; |
| 225 |
$excluded[] = 'jquery.min.js'; |
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return $excluded; |
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}); |
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|
| 229 |
add_filter('sgo_js_async_exclude', function($excluded) { |
| 230 |
if (!is_array($excluded)) $excluded = array(); |
| 231 |
$excluded[] = 'chat-script.js'; |
| 232 |
$excluded[] = 'floating-script.js'; |
| 233 |
$excluded[] = 'jquery.min.js'; |
| 234 |
return $excluded; |
| 235 |
}); |
| 236 |
|
| 237 |
// ── W3 Total Cache ─────────────────────────────────────────────────────────── |
| 238 |
|
| 239 |
add_filter('w3tc_minify_js_do_tag_minification', function($do_minify, $script_tag, $file) { |
| 240 |
if (strpos($file, 'chat-script.js') !== false || |
| 241 |
strpos($file, 'floating-script.js') !== false || |
| 242 |
strpos($file, 'jquery.min.js') !== false || |
| 243 |
strpos($file, 'jquery.js') !== false) { |
| 244 |
return false; |
| 245 |
} |
| 246 |
return $do_minify; |
| 247 |
}, 10, 3); |
| 248 |
|
| 249 |
// ── WP Super Cache ────────────────────────────────────────────────────────── |
| 250 |
|
| 251 |
add_filter('wpsc_rejected_uri', function($rejected) { |
| 252 |
if (!is_array($rejected)) $rejected = array(); |
| 253 |
$rejected[] = 'wp-admin/admin-ajax.php'; |
| 254 |
return $rejected; |
| 255 |
}); |
| 256 |
|
| 257 |
// Include classes with error handling |
| 258 |
function mxchat_include_classes() { |
| 259 |
$class_files = array( |
| 260 |
'includes/class-mxchat-integrator.php', |
| 261 |
'includes/class-mxchat-admin.php', |
| 262 |
'includes/class-mxchat-public.php', |
| 263 |
'includes/class-mxchat-utils.php', |
| 264 |
'includes/class-mxchat-user.php', |
| 265 |
'includes/class-mxchat-meta-box.php', |
| 266 |
'includes/class-mxchat-chunker.php', |
| 267 |
'includes/class-mxchat-word-handler.php', |
| 268 |
'includes/class-mxchat-content-generator.php', |
| 269 |
'admin/class-ajax-handler.php', |
| 270 |
'admin/class-pinecone-manager.php', |
| 271 |
'admin/class-knowledge-manager.php' |
| 272 |
); |
| 273 |
|
| 274 |
foreach ($class_files as $file) { |
| 275 |
$file_path = plugin_dir_path(__FILE__) . $file; |
| 276 |
if (file_exists($file_path)) { |
| 277 |
require_once $file_path; |
| 278 |
} else { |
| 279 |
//error_log('MxChat: Missing class file - ' . $file); |
| 280 |
} |
| 281 |
} |
| 282 |
} |
| 283 |
|
| 284 |
/** |
| 285 |
* Lazy-load the PDF parser library only when needed. |
| 286 |
* Avoids loading 44 files on every page request. |
| 287 |
*/ |
| 288 |
function mxchat_load_pdf_parser() { |
| 289 |
if (class_exists('\Smalot\PdfParser\Parser')) { |
| 290 |
return true; |
| 291 |
} |
| 292 |
$autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php'; |
| 293 |
if (file_exists($autoload_path)) { |
| 294 |
require_once $autoload_path; |
| 295 |
return true; |
| 296 |
} |
| 297 |
return false; |
| 298 |
} |
| 299 |
|
| 300 |
/** |
| 301 |
* Create URL click tracking table |
| 302 |
*/ |
| 303 |
function mxchat_create_url_clicks_table() { |
| 304 |
global $wpdb; |
| 305 |
|
| 306 |
$table_name = $wpdb->prefix . 'mxchat_url_clicks'; |
| 307 |
|
| 308 |
$charset_collate = $wpdb->get_charset_collate(); |
| 309 |
|
| 310 |
$sql = "CREATE TABLE $table_name ( |
| 311 |
id mediumint(9) NOT NULL AUTO_INCREMENT, |
| 312 |
session_id varchar(100) NOT NULL, |
| 313 |
clicked_url text NOT NULL, |
| 314 |
message_context text, |
| 315 |
click_timestamp datetime DEFAULT CURRENT_TIMESTAMP, |
| 316 |
user_ip varchar(45), |
| 317 |
user_agent text, |
| 318 |
PRIMARY KEY (id), |
| 319 |
KEY session_id (session_id), |
| 320 |
KEY click_timestamp (click_timestamp) |
| 321 |
) $charset_collate;"; |
| 322 |
|
| 323 |
require_once(ABSPATH . 'wp-admin/includes/upgrade.php'); |
| 324 |
dbDelta($sql); |
| 325 |
} |
| 326 |
|
| 327 |
/** |
| 328 |
* FIXED: Robust table creation and column management |
| 329 |
*/ |
| 330 |
function mxchat_create_chat_transcripts_table() { |
| 331 |
global $wpdb; |
| 332 |
|
| 333 |
$table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; |
| 334 |
$charset_collate = $wpdb->get_charset_collate(); |
| 335 |
|
| 336 |
// Create table with ALL columns including user_name from the start |
| 337 |
$sql = "CREATE TABLE $table_name ( |
| 338 |
id MEDIUMINT(9) NOT NULL AUTO_INCREMENT, |
| 339 |
user_id MEDIUMINT(9) DEFAULT 0, |
| 340 |
session_id VARCHAR(255) NOT NULL, |
| 341 |
role VARCHAR(255) NOT NULL, |
| 342 |
message TEXT NOT NULL, |
| 343 |
user_email VARCHAR(255) DEFAULT NULL, |
| 344 |
user_name VARCHAR(100) DEFAULT NULL, |
| 345 |
user_identifier VARCHAR(255) DEFAULT NULL, |
| 346 |
originating_page_url TEXT DEFAULT NULL, |
| 347 |
originating_page_title VARCHAR(500) DEFAULT NULL, |
| 348 |
timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, |
| 349 |
PRIMARY KEY (id), |
| 350 |
KEY session_id (session_id), |
| 351 |
KEY user_email (user_email), |
| 352 |
KEY timestamp (timestamp) |
| 353 |
) $charset_collate;"; |
| 354 |
|
| 355 |
require_once(ABSPATH . 'wp-admin/includes/upgrade.php'); |
| 356 |
$result = dbDelta($sql); |
| 357 |
|
| 358 |
// Log the result for debugging |
| 359 |
if (empty($result)) { |
| 360 |
//error_log("MxChat: dbDelta returned empty result for chat transcripts table"); |
| 361 |
} else { |
| 362 |
//error_log("MxChat: dbDelta result: " . print_r($result, true)); |
| 363 |
} |
| 364 |
|
| 365 |
// IMPORTANT: Ensure all columns exist for existing installations |
| 366 |
mxchat_ensure_all_columns($table_name); |
| 367 |
} |
| 368 |
|
| 369 |
/** |
| 370 |
* Ensure all required columns exist (for upgrades) |
| 371 |
*/ |
| 372 |
function mxchat_ensure_all_columns($table_name) { |
| 373 |
global $wpdb; |
| 374 |
|
| 375 |
// First check if table exists |
| 376 |
$table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name; |
| 377 |
if (!$table_exists) { |
| 378 |
//error_log("MxChat: Table $table_name does not exist, cannot add columns"); |
| 379 |
return; |
| 380 |
} |
| 381 |
|
| 382 |
// Define all required columns and their types |
| 383 |
$required_columns = [ |
| 384 |
'user_identifier' => 'VARCHAR(255) DEFAULT NULL', |
| 385 |
'user_email' => 'VARCHAR(255) DEFAULT NULL', |
| 386 |
'user_name' => 'VARCHAR(100) DEFAULT NULL', |
| 387 |
'originating_page_url' => 'TEXT DEFAULT NULL', |
| 388 |
'originating_page_title' => 'VARCHAR(500) DEFAULT NULL', |
| 389 |
'rag_context' => 'LONGTEXT DEFAULT NULL' |
| 390 |
]; |
| 391 |
|
| 392 |
// Get existing columns |
| 393 |
$existing_columns = $wpdb->get_results("SHOW COLUMNS FROM $table_name"); |
| 394 |
if (empty($existing_columns)) { |
| 395 |
//error_log("MxChat: Could not get columns for table $table_name"); |
| 396 |
return; |
| 397 |
} |
| 398 |
|
| 399 |
$existing_column_names = array_column($existing_columns, 'Field'); |
| 400 |
|
| 401 |
// Add missing columns |
| 402 |
foreach ($required_columns as $column_name => $column_definition) { |
| 403 |
if (!in_array($column_name, $existing_column_names)) { |
| 404 |
$alter_sql = "ALTER TABLE $table_name ADD COLUMN $column_name $column_definition"; |
| 405 |
$result = $wpdb->query($alter_sql); |
| 406 |
|
| 407 |
if ($result === false) { |
| 408 |
//error_log("MxChat: Failed to add column $column_name to $table_name. Error: " . $wpdb->last_error); |
| 409 |
} else { |
| 410 |
//error_log("MxChat: Successfully added column $column_name to $table_name"); |
| 411 |
} |
| 412 |
} |
| 413 |
} |
| 414 |
} |
| 415 |
|
| 416 |
/** |
| 417 |
* Add role restriction column to knowledge base table |
| 418 |
*/ |
| 419 |
function mxchat_add_role_restriction_column() { |
| 420 |
global $wpdb; |
| 421 |
$table_name = $wpdb->prefix . 'mxchat_system_prompt_content'; |
| 422 |
|
| 423 |
// Check if table exists first |
| 424 |
$table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name; |
| 425 |
if (!$table_exists) { |
| 426 |
//error_log("MxChat: System prompt content table does not exist, cannot add role_restriction column"); |
| 427 |
return; |
| 428 |
} |
| 429 |
|
| 430 |
// Check if column already exists |
| 431 |
$column_exists = $wpdb->get_results( |
| 432 |
$wpdb->prepare( |
| 433 |
"SHOW COLUMNS FROM {$table_name} LIKE %s", |
| 434 |
'role_restriction' |
| 435 |
) |
| 436 |
); |
| 437 |
|
| 438 |
if (empty($column_exists)) { |
| 439 |
$alter_sql = "ALTER TABLE {$table_name} ADD COLUMN role_restriction VARCHAR(50) DEFAULT 'public' AFTER source_url"; |
| 440 |
$result = $wpdb->query($alter_sql); |
| 441 |
|
| 442 |
if ($result === false) { |
| 443 |
//error_log("MxChat: Failed to add role_restriction column. Error: " . $wpdb->last_error); |
| 444 |
} else { |
| 445 |
//error_log("MxChat: Successfully added role_restriction column"); |
| 446 |
|
| 447 |
// Set all existing records to 'public' (everyone can access) |
| 448 |
$update_result = $wpdb->query( |
| 449 |
"UPDATE {$table_name} |
| 450 |
SET role_restriction = 'public' |
| 451 |
WHERE role_restriction IS NULL OR role_restriction = ''" |
| 452 |
); |
| 453 |
|
| 454 |
if ($update_result !== false) { |
| 455 |
//error_log("MxChat: Updated {$update_result} existing records to public access"); |
| 456 |
} |
| 457 |
} |
| 458 |
} |
| 459 |
} |
| 460 |
|
| 461 |
/** |
| 462 |
* Add enabled_bots column to intents table for multi-bot action filtering |
| 463 |
*/ |
| 464 |
function mxchat_add_enabled_bots_column() { |
| 465 |
global $wpdb; |
| 466 |
$table_name = $wpdb->prefix . 'mxchat_intents'; |
| 467 |
|
| 468 |
// Check if table exists first |
| 469 |
$table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name; |
| 470 |
if (!$table_exists) { |
| 471 |
//error_log("MxChat: Intents table does not exist, cannot add enabled_bots column"); |
| 472 |
return; |
| 473 |
} |
| 474 |
|
| 475 |
// Check if column already exists |
| 476 |
$column_exists = $wpdb->get_results( |
| 477 |
$wpdb->prepare( |
| 478 |
"SHOW COLUMNS FROM {$table_name} LIKE %s", |
| 479 |
'enabled_bots' |
| 480 |
) |
| 481 |
); |
| 482 |
|
| 483 |
if (empty($column_exists)) { |
| 484 |
$alter_sql = "ALTER TABLE {$table_name} ADD COLUMN enabled_bots LONGTEXT DEFAULT NULL AFTER enabled"; |
| 485 |
$result = $wpdb->query($alter_sql); |
| 486 |
|
| 487 |
if ($result === false) { |
| 488 |
//error_log("MxChat: Failed to add enabled_bots column. Error: " . $wpdb->last_error); |
| 489 |
} else { |
| 490 |
//error_log("MxChat: Successfully added enabled_bots column"); |
| 491 |
|
| 492 |
// Set all existing actions to work with 'default' bot for backward compatibility |
| 493 |
$default_bots = json_encode(['default']); |
| 494 |
$update_result = $wpdb->query( |
| 495 |
$wpdb->prepare( |
| 496 |
"UPDATE {$table_name} |
| 497 |
SET enabled_bots = %s |
| 498 |
WHERE enabled_bots IS NULL OR enabled_bots = ''", |
| 499 |
$default_bots |
| 500 |
) |
| 501 |
); |
| 502 |
|
| 503 |
if ($update_result !== false) { |
| 504 |
//error_log("MxChat: Updated {$update_result} existing actions to work with default bot"); |
| 505 |
} |
| 506 |
} |
| 507 |
} |
| 508 |
} |
| 509 |
|
| 510 |
/** |
| 511 |
* Create Pinecone role restrictions table with multi-bot support |
| 512 |
*/ |
| 513 |
function mxchat_create_pinecone_roles_table() { |
| 514 |
global $wpdb; |
| 515 |
|
| 516 |
$table_name = $wpdb->prefix . 'mxchat_pinecone_roles'; |
| 517 |
$charset_collate = $wpdb->get_charset_collate(); |
| 518 |
|
| 519 |
$sql = "CREATE TABLE $table_name ( |
| 520 |
id mediumint(9) NOT NULL AUTO_INCREMENT, |
| 521 |
vector_id varchar(255) NOT NULL, |
| 522 |
bot_id varchar(50) NOT NULL DEFAULT 'default', |
| 523 |
source_url text, |
| 524 |
role_restriction varchar(50) DEFAULT 'public', |
| 525 |
updated_at timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, |
| 526 |
PRIMARY KEY (id), |
| 527 |
UNIQUE KEY vector_bot (vector_id, bot_id), |
| 528 |
KEY role_restriction (role_restriction), |
| 529 |
KEY bot_id (bot_id) |
| 530 |
) $charset_collate;"; |
| 531 |
|
| 532 |
require_once(ABSPATH . 'wp-admin/includes/upgrade.php'); |
| 533 |
dbDelta($sql); |
| 534 |
} |
| 535 |
|
| 536 |
/** |
| 537 |
* Add bot_id column to mxchat_pinecone_roles table for multi-bot support |
| 538 |
* This migration runs once to update existing installations |
| 539 |
*/ |
| 540 |
function mxchat_migrate_pinecone_roles_add_bot_id() { |
| 541 |
global $wpdb; |
| 542 |
|
| 543 |
// Check if migration already ran |
| 544 |
$migration_version = get_option('mxchat_pinecone_roles_migration_version', '0'); |
| 545 |
if (version_compare($migration_version, '2.5.2', '>=')) { |
| 546 |
return; // Already migrated |
| 547 |
} |
| 548 |
|
| 549 |
$table_name = $wpdb->prefix . 'mxchat_pinecone_roles'; |
| 550 |
|
| 551 |
// Check if table exists |
| 552 |
if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) { |
| 553 |
return; // Table doesn't exist yet |
| 554 |
} |
| 555 |
|
| 556 |
// Check if bot_id column already exists |
| 557 |
$column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'bot_id'"); |
| 558 |
|
| 559 |
if (empty($column_exists)) { |
| 560 |
// Add bot_id column |
| 561 |
$wpdb->query("ALTER TABLE {$table_name} ADD COLUMN bot_id VARCHAR(50) NOT NULL DEFAULT 'default' AFTER vector_id"); |
| 562 |
|
| 563 |
// Update the unique key to include bot_id |
| 564 |
$wpdb->query("ALTER TABLE {$table_name} DROP INDEX vector_id"); |
| 565 |
$wpdb->query("ALTER TABLE {$table_name} ADD UNIQUE KEY vector_bot (vector_id, bot_id)"); |
| 566 |
|
| 567 |
// Add index for bot_id |
| 568 |
$wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)"); |
| 569 |
|
| 570 |
//error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table'); |
| 571 |
} |
| 572 |
|
| 573 |
// Mark migration as complete |
| 574 |
update_option('mxchat_pinecone_roles_migration_version', '2.5.2'); |
| 575 |
} |
| 576 |
|
| 577 |
/** |
| 578 |
* 2.5.6: Add content_type column to mxchat_system_prompt_content table |
| 579 |
* Enables filtering knowledge base by content type (posts, pages, PDFs, etc.) |
| 580 |
*/ |
| 581 |
function mxchat_migrate_add_content_type_column() { |
| 582 |
global $wpdb; |
| 583 |
|
| 584 |
// Check if migration already ran |
| 585 |
$migration_version = get_option('mxchat_content_type_migration_version', '0'); |
| 586 |
if (version_compare($migration_version, '2.5.6', '>=')) { |
| 587 |
return; |
| 588 |
} |
| 589 |
|
| 590 |
$table_name = $wpdb->prefix . 'mxchat_system_prompt_content'; |
| 591 |
|
| 592 |
// Check if table exists |
| 593 |
if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) { |
| 594 |
return; |
| 595 |
} |
| 596 |
|
| 597 |
// Check if content_type column already exists |
| 598 |
$column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'content_type'"); |
| 599 |
|
| 600 |
if (empty($column_exists)) { |
| 601 |
// Add content_type column with default value 'content' for backwards compatibility |
| 602 |
$wpdb->query("ALTER TABLE {$table_name} ADD COLUMN content_type VARCHAR(50) DEFAULT 'content' AFTER role_restriction"); |
| 603 |
|
| 604 |
// Add index for better query performance |
| 605 |
$wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)"); |
| 606 |
|
| 607 |
//error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table'); |
| 608 |
} |
| 609 |
|
| 610 |
// Mark migration as complete |
| 611 |
update_option('mxchat_content_type_migration_version', '2.5.6'); |
| 612 |
} |
| 613 |
|
| 614 |
/** |
| 615 |
* 2.5.2: Create queue processing tables for reliable background processing |
| 616 |
*/ |
| 617 |
function mxchat_create_queue_tables() { |
| 618 |
global $wpdb; |
| 619 |
$charset_collate = $wpdb->get_charset_collate(); |
| 620 |
|
| 621 |
// Main queue table |
| 622 |
$queue_table = $wpdb->prefix . 'mxchat_processing_queue'; |
| 623 |
$sql_queue = "CREATE TABLE $queue_table ( |
| 624 |
id bigint(20) unsigned NOT NULL AUTO_INCREMENT, |
| 625 |
queue_id varchar(64) NOT NULL, |
| 626 |
item_type varchar(20) NOT NULL, |
| 627 |
item_data longtext NOT NULL, |
| 628 |
status varchar(20) NOT NULL DEFAULT 'pending', |
| 629 |
bot_id varchar(50) NOT NULL DEFAULT 'default', |
| 630 |
priority int(11) NOT NULL DEFAULT 0, |
| 631 |
attempts int(11) NOT NULL DEFAULT 0, |
| 632 |
max_attempts int(11) NOT NULL DEFAULT 3, |
| 633 |
error_message text DEFAULT NULL, |
| 634 |
created_at datetime NOT NULL, |
| 635 |
started_at datetime DEFAULT NULL, |
| 636 |
completed_at datetime DEFAULT NULL, |
| 637 |
PRIMARY KEY (id), |
| 638 |
KEY queue_id (queue_id), |
| 639 |
KEY status (status), |
| 640 |
KEY item_type (item_type), |
| 641 |
KEY priority (priority) |
| 642 |
) $charset_collate;"; |
| 643 |
|
| 644 |
// Queue metadata table |
| 645 |
$meta_table = $wpdb->prefix . 'mxchat_queue_meta'; |
| 646 |
$sql_meta = "CREATE TABLE $meta_table ( |
| 647 |
id bigint(20) unsigned NOT NULL AUTO_INCREMENT, |
| 648 |
queue_id varchar(64) NOT NULL, |
| 649 |
meta_key varchar(255) NOT NULL, |
| 650 |
meta_value longtext, |
| 651 |
PRIMARY KEY (id), |
| 652 |
KEY queue_id (queue_id), |
| 653 |
KEY meta_key (meta_key) |
| 654 |
) $charset_collate;"; |
| 655 |
|
| 656 |
require_once(ABSPATH . 'wp-admin/includes/upgrade.php'); |
| 657 |
dbDelta($sql_queue); |
| 658 |
dbDelta($sql_meta); |
| 659 |
|
| 660 |
//error_log("MxChat: Queue tables created/updated successfully"); |
| 661 |
} |
| 662 |
|
| 663 |
/** |
| 664 |
* Create transcript translations table for persisting translations |
| 665 |
*/ |
| 666 |
function mxchat_create_translations_table() { |
| 667 |
global $wpdb; |
| 668 |
$charset_collate = $wpdb->get_charset_collate(); |
| 669 |
|
| 670 |
$table_name = $wpdb->prefix . 'mxchat_transcript_translations'; |
| 671 |
$sql = "CREATE TABLE $table_name ( |
| 672 |
id bigint(20) unsigned NOT NULL AUTO_INCREMENT, |
| 673 |
session_id varchar(255) NOT NULL, |
| 674 |
language_code varchar(10) NOT NULL, |
| 675 |
translations longtext NOT NULL, |
| 676 |
created_at datetime NOT NULL, |
| 677 |
updated_at datetime NOT NULL, |
| 678 |
PRIMARY KEY (id), |
| 679 |
UNIQUE KEY session_lang (session_id, language_code), |
| 680 |
KEY session_id (session_id) |
| 681 |
) $charset_collate;"; |
| 682 |
|
| 683 |
require_once(ABSPATH . 'wp-admin/includes/upgrade.php'); |
| 684 |
dbDelta($sql); |
| 685 |
} |
| 686 |
|
| 687 |
/** |
| 688 |
* 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding) |
| 689 |
* This fixes "url, source_url. The supplied values may be too long" errors |
| 690 |
*/ |
| 691 |
function mxchat_fix_url_column_size() { |
| 692 |
global $wpdb; |
| 693 |
$table_name = $wpdb->prefix . 'mxchat_system_prompt_content'; |
| 694 |
|
| 695 |
// Check if table exists |
| 696 |
$table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name; |
| 697 |
if (!$table_exists) { |
| 698 |
return; |
| 699 |
} |
| 700 |
|
| 701 |
// Change url and source_url from VARCHAR to TEXT to handle long URLs |
| 702 |
// This is especially important for URLs with UTF-8 encoded characters (Hebrew, Arabic, etc.) |
| 703 |
$wpdb->query("ALTER TABLE {$table_name} MODIFY COLUMN url TEXT"); |
| 704 |
$wpdb->query("ALTER TABLE {$table_name} MODIFY COLUMN source_url TEXT"); |
| 705 |
|
| 706 |
//error_log("MxChat: Successfully updated url and source_url columns to TEXT type for long URL support"); |
| 707 |
} |
| 708 |
|
| 709 |
/** |
| 710 |
* Migrate deprecated AI models to their replacements |
| 711 |
* Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet |
| 712 |
* Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support |
| 713 |
* Without utf8mb4, any bot response containing emojis silently fails to insert. |
| 714 |
*/ |
| 715 |
function mxchat_migrate_transcripts_charset() { |
| 716 |
global $wpdb; |
| 717 |
$table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; |
| 718 |
$wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci"); |
| 719 |
} |
| 720 |
|
| 721 |
/** |
| 722 |
* Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series |
| 723 |
*/ |
| 724 |
function mxchat_migrate_deprecated_models() { |
| 725 |
$options = get_option('mxchat_options', array()); |
| 726 |
$migrated = false; |
| 727 |
$migration_message = ''; |
| 728 |
|
| 729 |
if (!isset($options['model'])) { |
| 730 |
return; |
| 731 |
} |
| 732 |
|
| 733 |
$current_model = $options['model']; |
| 734 |
|
| 735 |
// Migrate deprecated Claude models to Claude Opus 4.6 (recommended replacement per Anthropic) |
| 736 |
$deprecated_claude_models = array( |
| 737 |
'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025 |
| 738 |
'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025 |
| 739 |
'claude-3-7-sonnet-20250219', // Retiring Feb 19, 2026 |
| 740 |
'claude-3-opus-20240229', // Retired Jan 5, 2026 |
| 741 |
'claude-3-sonnet-20240229', // Legacy |
| 742 |
'claude-3-haiku-20240307', // Legacy |
| 743 |
); |
| 744 |
if (in_array($current_model, $deprecated_claude_models, true)) { |
| 745 |
$options['model'] = 'claude-opus-4-6'; |
| 746 |
$migrated = true; |
| 747 |
$migration_message = sprintf( |
| 748 |
__('Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.', 'mxchat'), |
| 749 |
$current_model |
| 750 |
); |
| 751 |
} |
| 752 |
|
| 753 |
// Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5 |
| 754 |
if ($current_model === 'claude-3-5-haiku-20241022') { |
| 755 |
$options['model'] = 'claude-haiku-4-5-20251001'; |
| 756 |
$migrated = true; |
| 757 |
$migration_message = __('Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.', 'mxchat'); |
| 758 |
} |
| 759 |
|
| 760 |
// Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest |
| 761 |
if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) { |
| 762 |
$options['model'] = 'gpt-5.1-chat-latest'; |
| 763 |
$migrated = true; |
| 764 |
$migration_message = sprintf( |
| 765 |
__('Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.', 'mxchat'), |
| 766 |
$current_model |
| 767 |
); |
| 768 |
} |
| 769 |
|
| 770 |
// Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini |
| 771 |
if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) { |
| 772 |
$options['model'] = 'gpt-5-mini'; |
| 773 |
$migrated = true; |
| 774 |
$migration_message = sprintf( |
| 775 |
__('Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.', 'mxchat'), |
| 776 |
$current_model |
| 777 |
); |
| 778 |
} |
| 779 |
|
| 780 |
if ($migrated) { |
| 781 |
update_option('mxchat_options', $options); |
| 782 |
update_option('mxchat_model_migrated_notice', true); |
| 783 |
update_option('mxchat_model_migration_message', $migration_message); |
| 784 |
} |
| 785 |
} |
| 786 |
|
| 787 |
/** |
| 788 |
* Show admin notice after model migration |
| 789 |
*/ |
| 790 |
function mxchat_show_migration_notice() { |
| 791 |
if (get_option('mxchat_model_migrated_notice')) { |
| 792 |
$migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat')); |
| 793 |
?> |
| 794 |
<div class="notice notice-info is-dismissible"> |
| 795 |
<p> |
| 796 |
<strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br> |
| 797 |
<?php echo esc_html($migration_message); ?> |
| 798 |
</p> |
| 799 |
</div> |
| 800 |
<?php |
| 801 |
delete_option('mxchat_model_migrated_notice'); |
| 802 |
delete_option('mxchat_model_migration_message'); |
| 803 |
} |
| 804 |
} |
| 805 |
|
| 806 |
function mxchat_activate() { |
| 807 |
global $wpdb; |
| 808 |
$charset_collate = $wpdb->get_charset_collate(); |
| 809 |
|
| 810 |
//error_log("MxChat: Running activation function"); |
| 811 |
|
| 812 |
// Create chat transcripts table with improved function |
| 813 |
mxchat_create_chat_transcripts_table(); |
| 814 |
|
| 815 |
// System Prompt Content Table - UPDATED: Use TEXT for url and source_url columns |
| 816 |
$system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content'; |
| 817 |
$sql_system_prompt = "CREATE TABLE $system_prompt_table ( |
| 818 |
id MEDIUMINT(9) NOT NULL AUTO_INCREMENT, |
| 819 |
url TEXT NOT NULL, |
| 820 |
article_content LONGTEXT NOT NULL, |
| 821 |
embedding_vector LONGTEXT, |
| 822 |
source_url TEXT DEFAULT NULL, |
| 823 |
role_restriction VARCHAR(50) DEFAULT 'public', |
| 824 |
content_type VARCHAR(50) DEFAULT 'content', |
| 825 |
timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, |
| 826 |
PRIMARY KEY (id), |
| 827 |
KEY content_type (content_type) |
| 828 |
) $charset_collate;"; |
| 829 |
|
| 830 |
// Intents Table - NOW INCLUDES enabled_bots column from the start |
| 831 |
$intents_table = $wpdb->prefix . 'mxchat_intents'; |
| 832 |
$sql_intents_table = "CREATE TABLE $intents_table ( |
| 833 |
id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT, |
| 834 |
intent_label VARCHAR(255) NOT NULL, |
| 835 |
phrases TEXT NOT NULL, |
| 836 |
embedding_vector LONGTEXT NOT NULL, |
| 837 |
callback_function VARCHAR(255) NOT NULL, |
| 838 |
similarity_threshold FLOAT DEFAULT 0.85, |
| 839 |
enabled TINYINT(1) NOT NULL DEFAULT 1, |
| 840 |
enabled_bots LONGTEXT DEFAULT NULL, |
| 841 |
PRIMARY KEY (id) |
| 842 |
) $charset_collate;"; |
| 843 |
|
| 844 |
require_once ABSPATH . 'wp-admin/includes/upgrade.php'; |
| 845 |
|
| 846 |
// Create other tables |
| 847 |
dbDelta($sql_system_prompt); |
| 848 |
dbDelta($sql_intents_table); |
| 849 |
|
| 850 |
// Create URL click tracking table |
| 851 |
mxchat_create_url_clicks_table(); |
| 852 |
|
| 853 |
// Create Pinecone roles table |
| 854 |
mxchat_create_pinecone_roles_table(); |
| 855 |
|
| 856 |
// NEW 2.5.2: Create queue processing tables |
| 857 |
mxchat_create_queue_tables(); |
| 858 |
|
| 859 |
// Create transcript translations table |
| 860 |
mxchat_create_translations_table(); |
| 861 |
|
| 862 |
// Ensure additional columns in system prompt table |
| 863 |
$existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table"); |
| 864 |
if (!empty($existing_system_columns)) { |
| 865 |
$existing_system_column_names = array_column($existing_system_columns, 'Field'); |
| 866 |
|
| 867 |
if (!in_array('embedding_vector', $existing_system_column_names)) { |
| 868 |
$wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN embedding_vector LONGTEXT"); |
| 869 |
} |
| 870 |
if (!in_array('source_url', $existing_system_column_names)) { |
| 871 |
$wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN source_url TEXT DEFAULT NULL"); |
| 872 |
} |
| 873 |
if (!in_array('role_restriction', $existing_system_column_names)) { |
| 874 |
$wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN role_restriction VARCHAR(50) DEFAULT 'public' AFTER source_url"); |
| 875 |
} |
| 876 |
} |
| 877 |
|
| 878 |
// Set default thresholds for existing intents |
| 879 |
$wpdb->query("UPDATE {$intents_table} SET similarity_threshold = 0.85 WHERE similarity_threshold IS NULL"); |
| 880 |
|
| 881 |
// Ensure enabled column exists in intents table |
| 882 |
$existing_intent_columns = $wpdb->get_results("SHOW COLUMNS FROM $intents_table"); |
| 883 |
if (!empty($existing_intent_columns)) { |
| 884 |
$existing_intent_column_names = array_column($existing_intent_columns, 'Field'); |
| 885 |
|
| 886 |
if (!in_array('enabled', $existing_intent_column_names)) { |
| 887 |
$wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled TINYINT(1) NOT NULL DEFAULT 1"); |
| 888 |
} |
| 889 |
|
| 890 |
// Ensure enabled_bots column exists for existing installations |
| 891 |
if (!in_array('enabled_bots', $existing_intent_column_names)) { |
| 892 |
$wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled_bots LONGTEXT DEFAULT NULL AFTER enabled"); |
| 893 |
|
| 894 |
// Set existing actions to work with default bot |
| 895 |
$default_bots = json_encode(['default']); |
| 896 |
$wpdb->query($wpdb->prepare( |
| 897 |
"UPDATE {$intents_table} SET enabled_bots = %s WHERE enabled_bots IS NULL", |
| 898 |
$default_bots |
| 899 |
)); |
| 900 |
} |
| 901 |
} |
| 902 |
|
| 903 |
// Run migration for existing installations |
| 904 |
mxchat_migrate_pinecone_roles_add_bot_id(); |
| 905 |
|
| 906 |
// Setup cron jobs |
| 907 |
mxchat_setup_cron_jobs(); |
| 908 |
|
| 909 |
// Update version |
| 910 |
update_option('mxchat_plugin_version', MXCHAT_VERSION); |
| 911 |
|
| 912 |
//error_log("MxChat: Activation function completed"); |
| 913 |
} |
| 914 |
|
| 915 |
/** |
| 916 |
* Setup cron jobs on plugin activation |
| 917 |
*/ |
| 918 |
function mxchat_setup_cron_jobs() { |
| 919 |
// Clear any existing cron jobs first |
| 920 |
wp_clear_scheduled_hook('mxchat_reset_rate_limits'); |
| 921 |
|
| 922 |
// Check if WordPress cron is disabled |
| 923 |
if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) { |
| 924 |
// Set flag to use fallback system |
| 925 |
update_option('mxchat_use_fallback_rate_limits', true); |
| 926 |
update_option('mxchat_next_rate_limit_check', time() + 3600); |
| 927 |
return; |
| 928 |
} |
| 929 |
|
| 930 |
// Schedule the rate limit reset cron job |
| 931 |
$result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits'); |
| 932 |
|
| 933 |
if ($result === false) { |
| 934 |
// Fallback if scheduling fails |
| 935 |
update_option('mxchat_use_fallback_rate_limits', true); |
| 936 |
update_option('mxchat_next_rate_limit_check', time() + 3600); |
| 937 |
} else { |
| 938 |
// Clear fallback flags if cron scheduling succeeded |
| 939 |
delete_option('mxchat_use_fallback_rate_limits'); |
| 940 |
} |
| 941 |
|
| 942 |
// Schedule transcript cleanup if configured |
| 943 |
$transcript_options = get_option('mxchat_transcripts_options', array()); |
| 944 |
$cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never'; |
| 945 |
|
| 946 |
if ($cleanup_interval !== 'never') { |
| 947 |
// Check if not already scheduled |
| 948 |
if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) { |
| 949 |
// Schedule to run daily at 3 AM |
| 950 |
$next_run = strtotime('tomorrow 3:00 AM'); |
| 951 |
wp_schedule_event($next_run, 'daily', 'mxchat_cleanup_old_transcripts'); |
| 952 |
} |
| 953 |
} |
| 954 |
} |
| 955 |
|
| 956 |
/** |
| 957 |
* Clean up on plugin deactivation |
| 958 |
*/ |
| 959 |
function mxchat_deactivate() { |
| 960 |
// Clear scheduled cron jobs |
| 961 |
wp_clear_scheduled_hook('mxchat_reset_rate_limits'); |
| 962 |
wp_clear_scheduled_hook('mxchat_cleanup_old_transcripts'); |
| 963 |
wp_clear_scheduled_hook('mxchat_send_delayed_transcript'); |
| 964 |
|
| 965 |
// Clear fallback options |
| 966 |
delete_option('mxchat_use_fallback_rate_limits'); |
| 967 |
delete_option('mxchat_next_rate_limit_check'); |
| 968 |
delete_option('mxchat_fallback_check_interval'); |
| 969 |
|
| 970 |
// NOTE: We do NOT delete queue tables on deactivation |
| 971 |
// This preserves data if user accidentally deactivates the plugin |
| 972 |
} |
| 973 |
|
| 974 |
/** |
| 975 |
* Check if fallback rate limit cleanup is needed |
| 976 |
*/ |
| 977 |
function mxchat_check_fallback_rate_limits() { |
| 978 |
$use_fallback = get_option('mxchat_use_fallback_rate_limits', false); |
| 979 |
|
| 980 |
if (!$use_fallback) { |
| 981 |
return; |
| 982 |
} |
| 983 |
|
| 984 |
$next_check = get_option('mxchat_next_rate_limit_check', 0); |
| 985 |
|
| 986 |
if (time() >= $next_check) { |
| 987 |
// Only run reset if the MxChat_Integrator class exists |
| 988 |
if (class_exists('MxChat_Integrator')) { |
| 989 |
$integrator = new MxChat_Integrator(); |
| 990 |
if (method_exists($integrator, 'mxchat_reset_rate_limits')) { |
| 991 |
$integrator->mxchat_reset_rate_limits(); |
| 992 |
update_option('mxchat_next_rate_limit_check', time() + 3600); |
| 993 |
} |
| 994 |
} |
| 995 |
} |
| 996 |
} |
| 997 |
|
| 998 |
/** |
| 999 |
* Robust update checking with role restriction migration, model deprecation, and queue tables |
| 1000 |
* CRITICAL: This runs on EVERY page load to ensure tables exist |
| 1001 |
*/ |
| 1002 |
function mxchat_check_for_update() { |
| 1003 |
global $wpdb; |
| 1004 |
|
| 1005 |
try { |
| 1006 |
$current_version = get_option('mxchat_plugin_version', '0.0.0'); |
| 1007 |
$plugin_version = MXCHAT_VERSION; |
| 1008 |
|
| 1009 |
// Always ensure critical tables exist (even if version matches) |
| 1010 |
// This handles manual table deletion or fresh installs |
| 1011 |
$chat_table = $wpdb->prefix . 'mxchat_chat_transcripts'; |
| 1012 |
$queue_table = $wpdb->prefix . 'mxchat_processing_queue'; |
| 1013 |
|
| 1014 |
$chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$chat_table'") === $chat_table; |
| 1015 |
$queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table; |
| 1016 |
|
| 1017 |
if (!$chat_exists || !$queue_exists) { |
| 1018 |
//error_log("MxChat: Critical tables missing, running activation"); |
| 1019 |
mxchat_activate(); |
| 1020 |
} |
| 1021 |
|
| 1022 |
// Version-specific migrations |
| 1023 |
if ($current_version !== $plugin_version) { |
| 1024 |
//error_log("MxChat: Version change detected: $current_version -> $plugin_version"); |
| 1025 |
|
| 1026 |
// Run live agent update BEFORE updating the stored version |
| 1027 |
mxchat_handle_live_agent_update(); |
| 1028 |
|
| 1029 |
// Run theme migration notice for 3.0.1 (AI theme CSS structure changes) |
| 1030 |
mxchat_handle_theme_migration_notice(); |
| 1031 |
|
| 1032 |
// Run role restriction migration for 2.4.1 |
| 1033 |
if (version_compare($current_version, '2.4.1', '<')) { |
| 1034 |
mxchat_add_role_restriction_column(); |
| 1035 |
} |
| 1036 |
|
| 1037 |
// Run enabled_bots column migration for 2.4.4 |
| 1038 |
if (version_compare($current_version, '2.4.4', '<')) { |
| 1039 |
mxchat_add_enabled_bots_column(); |
| 1040 |
} |
| 1041 |
|
| 1042 |
// Run model migration for 2.5.1 (Claude deprecation) |
| 1043 |
if (version_compare($current_version, '2.5.1', '<')) { |
| 1044 |
mxchat_migrate_deprecated_models(); |
| 1045 |
} |
| 1046 |
|
| 1047 |
// 2.5.2: Ensure queue tables exist and fix URL column sizes for all users upgrading to 2.5.2 |
| 1048 |
if (version_compare($current_version, '2.5.2', '<')) { |
| 1049 |
mxchat_create_queue_tables(); |
| 1050 |
mxchat_fix_url_column_size(); // NEW: Fix URL column size for long URLs |
| 1051 |
//error_log("MxChat: Queue tables created and URL columns updated for upgrade to 2.5.2"); |
| 1052 |
} |
| 1053 |
|
| 1054 |
// 2.6.0: Ensure rag_context column exists for retrieved documents feature |
| 1055 |
if (version_compare($current_version, '2.6.0', '<')) { |
| 1056 |
$chat_table = $wpdb->prefix . 'mxchat_chat_transcripts'; |
| 1057 |
mxchat_ensure_all_columns($chat_table); |
| 1058 |
//error_log("MxChat: rag_context column migration for 2.6.0"); |
| 1059 |
} |
| 1060 |
|
| 1061 |
// 3.0.5: Migrate deprecated Gemini embedding model |
| 1062 |
if (version_compare($current_version, '3.0.5', '<')) { |
| 1063 |
mxchat_migrate_gemini_embedding_model(); |
| 1064 |
} |
| 1065 |
|
| 1066 |
// 3.0.6: Migrate deprecated OpenAI and Claude models |
| 1067 |
if (version_compare($current_version, '3.0.6', '<')) { |
| 1068 |
mxchat_migrate_deprecated_models(); |
| 1069 |
} |
| 1070 |
|
| 1071 |
// 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support |
| 1072 |
if (version_compare($current_version, '3.1.2', '<')) { |
| 1073 |
mxchat_migrate_transcripts_charset(); |
| 1074 |
} |
| 1075 |
|
| 1076 |
// Run full activation to ensure everything is up to date |
| 1077 |
mxchat_activate(); |
| 1078 |
|
| 1079 |
// Run migration functions |
| 1080 |
mxchat_migrate_live_agent_status(); |
| 1081 |
|
| 1082 |
// Add the cleanup function for version 2.1.8 |
| 1083 |
if (version_compare($current_version, '2.1.8', '<')) { |
| 1084 |
$deleted = mxchat_cleanup_orphaned_chat_history(); |
| 1085 |
} |
| 1086 |
|
| 1087 |
// Update version LAST |
| 1088 |
update_option('mxchat_plugin_version', $plugin_version); |
| 1089 |
|
| 1090 |
//error_log("MxChat: Updated from version $current_version to $plugin_version"); |
| 1091 |
} |
| 1092 |
|
| 1093 |
} catch (Exception $e) { |
| 1094 |
//error_log('MxChat update error: ' . $e->getMessage()); |
| 1095 |
// Don't update version if there was an error |
| 1096 |
} |
| 1097 |
} |
| 1098 |
|
| 1099 |
/** |
| 1100 |
* Ensure tables exist on every admin load for fresh installations |
| 1101 |
* This is a safety net for cases where activation hook doesn't fire |
| 1102 |
*/ |
| 1103 |
function mxchat_ensure_tables_exist() { |
| 1104 |
global $wpdb; |
| 1105 |
|
| 1106 |
// Only run for admin users to avoid performance impact |
| 1107 |
if (!current_user_can('administrator')) { |
| 1108 |
return; |
| 1109 |
} |
| 1110 |
|
| 1111 |
// Check if we've already verified tables in this session |
| 1112 |
static $tables_checked = false; |
| 1113 |
if ($tables_checked) { |
| 1114 |
return; |
| 1115 |
} |
| 1116 |
$tables_checked = true; |
| 1117 |
|
| 1118 |
$table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; |
| 1119 |
$queue_table = $wpdb->prefix . 'mxchat_processing_queue'; |
| 1120 |
|
| 1121 |
$chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name; |
| 1122 |
$queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table; |
| 1123 |
|
| 1124 |
if (!$chat_exists || !$queue_exists) { |
| 1125 |
//error_log("MxChat: Tables missing on admin load, running activation"); |
| 1126 |
mxchat_activate(); |
| 1127 |
} |
| 1128 |
} |
| 1129 |
|
| 1130 |
/** |
| 1131 |
* Clean up orphaned chat history options from the wp_options table |
| 1132 |
* @return int Number of options deleted |
| 1133 |
*/ |
| 1134 |
function mxchat_cleanup_orphaned_chat_history() { |
| 1135 |
global $wpdb; |
| 1136 |
$count = 0; |
| 1137 |
|
| 1138 |
// Get all option keys that match our pattern |
| 1139 |
$history_options = $wpdb->get_results( |
| 1140 |
"SELECT option_name FROM {$wpdb->options} |
| 1141 |
WHERE option_name LIKE 'mxchat_history_%'" |
| 1142 |
); |
| 1143 |
|
| 1144 |
if (!empty($history_options)) { |
| 1145 |
foreach ($history_options as $option) { |
| 1146 |
// Extract the session ID from the option name |
| 1147 |
$session_id = str_replace('mxchat_history_', '', $option->option_name); |
| 1148 |
|
| 1149 |
// Check if this session still exists in the custom table |
| 1150 |
$table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; |
| 1151 |
$exists = $wpdb->get_var( |
| 1152 |
$wpdb->prepare( |
| 1153 |
"SELECT COUNT(*) FROM {$table_name} WHERE session_id = %s", |
| 1154 |
$session_id |
| 1155 |
) |
| 1156 |
); |
| 1157 |
|
| 1158 |
// If session doesn't exist in the main table, delete the option |
| 1159 |
if ($exists == 0) { |
| 1160 |
delete_option($option->option_name); |
| 1161 |
// Also delete related metadata |
| 1162 |
delete_option("mxchat_email_{$session_id}"); |
| 1163 |
delete_option("mxchat_name_{$session_id}"); |
| 1164 |
delete_option("mxchat_agent_name_{$session_id}"); |
| 1165 |
$count++; |
| 1166 |
} |
| 1167 |
} |
| 1168 |
} |
| 1169 |
|
| 1170 |
return $count; |
| 1171 |
} |
| 1172 |
|
| 1173 |
function mxchat_migrate_live_agent_status() { |
| 1174 |
$options = get_option('mxchat_options', []); |
| 1175 |
|
| 1176 |
// Check if live_agent_status exists |
| 1177 |
if (isset($options['live_agent_status'])) { |
| 1178 |
$current_status = $options['live_agent_status']; |
| 1179 |
$needs_update = false; |
| 1180 |
|
| 1181 |
// Convert to new format if needed |
| 1182 |
if ($current_status === 'online') { |
| 1183 |
$options['live_agent_status'] = 'on'; |
| 1184 |
$needs_update = true; |
| 1185 |
} else if ($current_status === 'offline') { |
| 1186 |
$options['live_agent_status'] = 'off'; |
| 1187 |
$needs_update = true; |
| 1188 |
} else if (!in_array($current_status, ['on', 'off'])) { |
| 1189 |
// Default to off for any unexpected values |
| 1190 |
$options['live_agent_status'] = 'off'; |
| 1191 |
$needs_update = true; |
| 1192 |
} |
| 1193 |
|
| 1194 |
// Only update if needed |
| 1195 |
if ($needs_update) { |
| 1196 |
update_option('mxchat_options', $options); |
| 1197 |
} |
| 1198 |
} else { |
| 1199 |
// If status doesn't exist, set default to off |
| 1200 |
$options['live_agent_status'] = 'off'; |
| 1201 |
update_option('mxchat_options', $options); |
| 1202 |
} |
| 1203 |
} |
| 1204 |
|
| 1205 |
function mxchat_handle_live_agent_update() { |
| 1206 |
// Get the CURRENT stored version (before it gets updated) |
| 1207 |
$current_version = get_option('mxchat_plugin_version', '0.0.0'); |
| 1208 |
$new_version = '2.2.2'; |
| 1209 |
|
| 1210 |
// Only run this once for the update to 2.2.2 |
| 1211 |
$update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false); |
| 1212 |
|
| 1213 |
// Check if we're upgrading TO 2.2.2 and haven't handled this yet |
| 1214 |
if (version_compare($current_version, $new_version, '<') && !$update_handled) { |
| 1215 |
$options = get_option('mxchat_options', array()); |
| 1216 |
|
| 1217 |
// Check if live agent was previously enabled |
| 1218 |
if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') { |
| 1219 |
// Disable live agent |
| 1220 |
$options['live_agent_status'] = 'off'; |
| 1221 |
update_option('mxchat_options', $options); |
| 1222 |
|
| 1223 |
// Set flag to show the notification banner |
| 1224 |
update_option('mxchat_show_live_agent_disabled_notice', true); |
| 1225 |
} |
| 1226 |
|
| 1227 |
// Mark this update as handled |
| 1228 |
update_option('mxchat_live_agent_update_2_2_2_handled', true); |
| 1229 |
} |
| 1230 |
} |
| 1231 |
|
| 1232 |
/** |
| 1233 |
* Handle theme migration notice for version 3.0.1 |
| 1234 |
* Shows a dismissible notice to Pro users about migrating AI-generated themes |
| 1235 |
*/ |
| 1236 |
function mxchat_handle_theme_migration_notice() { |
| 1237 |
// Get the CURRENT stored version (before it gets updated) |
| 1238 |
$current_version = get_option('mxchat_plugin_version', '0.0.0'); |
| 1239 |
$target_version = '3.0.1'; |
| 1240 |
|
| 1241 |
// Only run this once for the update to 3.0.1 |
| 1242 |
$update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false); |
| 1243 |
|
| 1244 |
// Check if we're upgrading TO 3.0.1 and haven't handled this yet |
| 1245 |
if (version_compare($current_version, $target_version, '<') && !$update_handled) { |
| 1246 |
// Check if Pro is activated - only show to Pro users |
| 1247 |
$license_status = get_option('mxchat_license_status', 'inactive'); |
| 1248 |
$is_pro = ($license_status === 'active' || $license_status === esc_html__('active', 'mxchat')); |
| 1249 |
|
| 1250 |
if ($is_pro) { |
| 1251 |
// Set flag to show the theme migration notification banner |
| 1252 |
update_option('mxchat_show_theme_migration_notice', true); |
| 1253 |
} |
| 1254 |
|
| 1255 |
// Mark this update as handled (whether Pro or not) |
| 1256 |
update_option('mxchat_theme_migration_update_3_0_1_handled', true); |
| 1257 |
} |
| 1258 |
} |
| 1259 |
|
| 1260 |
// Initialize plugin safely |
| 1261 |
function mxchat_init() { |
| 1262 |
// Include all class files first |
| 1263 |
mxchat_include_classes(); |
| 1264 |
|
| 1265 |
// Run update check (this also ensures tables exist) |
| 1266 |
mxchat_check_for_update(); |
| 1267 |
|
| 1268 |
// CRITICAL: Ensure tables exist on admin pages (safety net) |
| 1269 |
add_action('admin_init', 'mxchat_ensure_tables_exist', 1); |
| 1270 |
|
| 1271 |
// Add fallback rate limit check |
| 1272 |
add_action('init', 'mxchat_check_fallback_rate_limits', 5); |
| 1273 |
|
| 1274 |
// Add migration notice hook |
| 1275 |
add_action('admin_notices', 'mxchat_show_migration_notice'); |
| 1276 |
|
| 1277 |
// Initialize classes with error handling |
| 1278 |
try { |
| 1279 |
// Initialize admin classes |
| 1280 |
if (is_admin()) { |
| 1281 |
if (class_exists('MxChat_Knowledge_Manager')) { |
| 1282 |
$mxchat_knowledge_manager = new MxChat_Knowledge_Manager(); |
| 1283 |
|
| 1284 |
if (class_exists('MxChat_Admin')) { |
| 1285 |
$mxchat_admin = new MxChat_Admin($mxchat_knowledge_manager); |
| 1286 |
} |
| 1287 |
} |
| 1288 |
|
| 1289 |
// Initialize meta box class |
| 1290 |
if (class_exists('MxChat_Meta_Box')) { |
| 1291 |
new MxChat_Meta_Box(); |
| 1292 |
} |
| 1293 |
|
| 1294 |
} |
| 1295 |
|
| 1296 |
// Initialize content generator globally — it registers wp_head hook |
| 1297 |
// for frontend CSS injection, plus wp_ajax_ hooks for admin. |
| 1298 |
if (class_exists('MxChat_Content_Generator')) { |
| 1299 |
new MxChat_Content_Generator(); |
| 1300 |
} |
| 1301 |
|
| 1302 |
// Initialize public classes |
| 1303 |
if (class_exists('MxChat_Public')) { |
| 1304 |
$mxchat_public = new MxChat_Public(); |
| 1305 |
} |
| 1306 |
|
| 1307 |
if (class_exists('MxChat_Integrator')) { |
| 1308 |
global $mxchat_integrator; |
| 1309 |
$mxchat_integrator = new MxChat_Integrator(); |
| 1310 |
} |
| 1311 |
|
| 1312 |
} catch (Exception $e) { |
| 1313 |
//error_log('MxChat initialization error: ' . $e->getMessage()); |
| 1314 |
|
| 1315 |
// Show admin notice if there's an error |
| 1316 |
if (is_admin()) { |
| 1317 |
add_action('admin_notices', function() use ($e) { |
| 1318 |
echo '<div class="notice notice-error"><p>'; |
| 1319 |
echo '<strong>MxChat Error:</strong> Plugin initialization failed. '; |
| 1320 |
echo 'Please check error logs or contact support. Error: ' . esc_html($e->getMessage()); |
| 1321 |
echo '</p></div>'; |
| 1322 |
}); |
| 1323 |
} |
| 1324 |
} |
| 1325 |
} |
| 1326 |
|
| 1327 |
// Run initialization on plugins_loaded |
| 1328 |
add_action('plugins_loaded', 'mxchat_init'); |
| 1329 |
|
| 1330 |
// Run migration check on admin init (for auto-updates without reactivation) |
| 1331 |
add_action('admin_init', 'mxchat_check_and_run_migrations'); |
| 1332 |
|
| 1333 |
/** |
| 1334 |
* Check and run migrations on admin init |
| 1335 |
* This ensures migrations run even when plugin is auto-updated |
| 1336 |
*/ |
| 1337 |
function mxchat_check_and_run_migrations() { |
| 1338 |
// Only run in admin and not on every request |
| 1339 |
static $checked = false; |
| 1340 |
if ($checked) { |
| 1341 |
return; |
| 1342 |
} |
| 1343 |
$checked = true; |
| 1344 |
|
| 1345 |
mxchat_migrate_pinecone_roles_add_bot_id(); |
| 1346 |
mxchat_migrate_add_content_type_column(); |
| 1347 |
mxchat_migrate_add_translations_table(); |
| 1348 |
} |
| 1349 |
|
| 1350 |
/** |
| 1351 |
* Migration: Create transcript translations table (v3.0.4) |
| 1352 |
* For users upgrading from versions before 3.0.4 |
| 1353 |
*/ |
| 1354 |
function mxchat_migrate_add_translations_table() { |
| 1355 |
$migration_key = 'mxchat_translations_table_created'; |
| 1356 |
|
| 1357 |
// Check if migration already ran |
| 1358 |
if (get_option($migration_key)) { |
| 1359 |
return; |
| 1360 |
} |
| 1361 |
|
| 1362 |
// Create the translations table |
| 1363 |
mxchat_create_translations_table(); |
| 1364 |
|
| 1365 |
// Mark migration as complete |
| 1366 |
update_option($migration_key, '3.0.4'); |
| 1367 |
} |
| 1368 |
|
| 1369 |
/** |
| 1370 |
* Migration: Update deprecated Gemini embedding model (v3.0.5) |
| 1371 |
* Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected |
| 1372 |
*/ |
| 1373 |
function mxchat_migrate_gemini_embedding_model() { |
| 1374 |
$options = get_option('mxchat_options', array()); |
| 1375 |
|
| 1376 |
if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') { |
| 1377 |
$options['embedding_model'] = 'gemini-embedding-001'; |
| 1378 |
update_option('mxchat_options', $options); |
| 1379 |
} |
| 1380 |
} |
| 1381 |
|
| 1382 |
// Register activation hook |
| 1383 |
register_activation_hook(__FILE__, 'mxchat_activate'); |
| 1384 |
|
| 1385 |
// Add cron schedule |
| 1386 |
add_filter('cron_schedules', function($schedules) { |
| 1387 |
$schedules['one_minute'] = array( |
| 1388 |
'interval' => 60, |
| 1389 |
'display' => 'Every Minute' |
| 1390 |
); |
| 1391 |
return $schedules; |
| 1392 |
}); |
| 1393 |
|
| 1394 |
// Register deactivation hook |
| 1395 |
register_deactivation_hook(__FILE__, 'mxchat_deactivate'); |
