| 1 |
<?php |
| 2 |
/** |
| 3 |
* Plugin Name: MxChat |
| 4 |
* Description: AI chatbot for WordPress with OpenAI, Claude, xAI, DeepSeek, live agent, PDF uploads, WooCommerce, and training on website data. |
| 5 |
* Version: 2.3.7 |
| 6 |
* Author: MxChat |
| 7 |
* Author URI: https://mxchat.ai |
| 8 |
* License: GPLv2 or later |
| 9 |
* License URI: https://www.gnu.org/licenses/gpl-2.0.html |
| 10 |
* Text Domain: mxchat |
| 11 |
* Domain Path: /languages |
| 12 |
*/ |
| 13 |
|
| 14 |
if (!defined('ABSPATH')) { |
| 15 |
exit; // Exit if accessed directly. |
| 16 |
} |
| 17 |
|
| 18 |
// Define plugin version constant for asset versioning |
| 19 |
define('MXCHAT_VERSION', '2.3.7'); |
| 20 |
|
| 21 |
function mxchat_load_textdomain() { |
| 22 |
load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages'); |
| 23 |
} |
| 24 |
add_action('plugins_loaded', 'mxchat_load_textdomain'); |
| 25 |
|
| 26 |
// Include classes with error handling |
| 27 |
function mxchat_include_classes() { |
| 28 |
$class_files = array( |
| 29 |
'includes/class-mxchat-integrator.php', |
| 30 |
'includes/class-mxchat-admin.php', |
| 31 |
'includes/class-mxchat-public.php', |
| 32 |
'includes/class-mxchat-utils.php', |
| 33 |
'includes/class-mxchat-user.php', |
| 34 |
'includes/pdf-parser/alt_autoload.php', |
| 35 |
'includes/class-mxchat-word-handler.php', |
| 36 |
'admin/class-ajax-handler.php', |
| 37 |
'admin/class-pinecone-manager.php', |
| 38 |
'admin/class-knowledge-manager.php' |
| 39 |
); |
| 40 |
|
| 41 |
foreach ($class_files as $file) { |
| 42 |
$file_path = plugin_dir_path(__FILE__) . $file; |
| 43 |
if (file_exists($file_path)) { |
| 44 |
require_once $file_path; |
| 45 |
} else { |
| 46 |
//error_log('MxChat: Missing class file - ' . $file); |
| 47 |
} |
| 48 |
} |
| 49 |
} |
| 50 |
|
| 51 |
/** |
| 52 |
* NEW: Create URL click tracking table |
| 53 |
*/ |
| 54 |
function mxchat_create_url_clicks_table() { |
| 55 |
global $wpdb; |
| 56 |
|
| 57 |
$table_name = $wpdb->prefix . 'mxchat_url_clicks'; |
| 58 |
|
| 59 |
$charset_collate = $wpdb->get_charset_collate(); |
| 60 |
|
| 61 |
$sql = "CREATE TABLE $table_name ( |
| 62 |
id mediumint(9) NOT NULL AUTO_INCREMENT, |
| 63 |
session_id varchar(100) NOT NULL, |
| 64 |
clicked_url text NOT NULL, |
| 65 |
message_context text, |
| 66 |
click_timestamp datetime DEFAULT CURRENT_TIMESTAMP, |
| 67 |
user_ip varchar(45), |
| 68 |
user_agent text, |
| 69 |
PRIMARY KEY (id), |
| 70 |
KEY session_id (session_id), |
| 71 |
KEY click_timestamp (click_timestamp) |
| 72 |
) $charset_collate;"; |
| 73 |
|
| 74 |
require_once(ABSPATH . 'wp-admin/includes/upgrade.php'); |
| 75 |
dbDelta($sql); |
| 76 |
} |
| 77 |
|
| 78 |
function mxchat_activate() { |
| 79 |
global $wpdb; |
| 80 |
$charset_collate = $wpdb->get_charset_collate(); |
| 81 |
|
| 82 |
// Chat Transcripts Table |
| 83 |
$chat_transcripts_table = $wpdb->prefix . 'mxchat_chat_transcripts'; |
| 84 |
$sql_chat_transcripts = "CREATE TABLE $chat_transcripts_table ( |
| 85 |
id MEDIUMINT(9) NOT NULL AUTO_INCREMENT, |
| 86 |
user_id MEDIUMINT(9) DEFAULT 0, |
| 87 |
session_id VARCHAR(255) NOT NULL, |
| 88 |
role VARCHAR(255) NOT NULL, |
| 89 |
message TEXT NOT NULL, |
| 90 |
user_email VARCHAR(255) DEFAULT NULL, |
| 91 |
timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, |
| 92 |
PRIMARY KEY (id) |
| 93 |
) $charset_collate;"; |
| 94 |
|
| 95 |
// System Prompt Content Table |
| 96 |
$system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content'; |
| 97 |
$sql_system_prompt = "CREATE TABLE $system_prompt_table ( |
| 98 |
id MEDIUMINT(9) NOT NULL AUTO_INCREMENT, |
| 99 |
url VARCHAR(255) NOT NULL, |
| 100 |
article_content LONGTEXT NOT NULL, |
| 101 |
embedding_vector LONGTEXT, |
| 102 |
source_url VARCHAR(255) DEFAULT NULL, |
| 103 |
timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, |
| 104 |
PRIMARY KEY (id) |
| 105 |
) $charset_collate;"; |
| 106 |
|
| 107 |
// Intents Table |
| 108 |
$intents_table = $wpdb->prefix . 'mxchat_intents'; |
| 109 |
$sql_intents_table = "CREATE TABLE $intents_table ( |
| 110 |
id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT, |
| 111 |
intent_label VARCHAR(255) NOT NULL, |
| 112 |
phrases TEXT NOT NULL, |
| 113 |
embedding_vector LONGTEXT NOT NULL, |
| 114 |
callback_function VARCHAR(255) NOT NULL, |
| 115 |
similarity_threshold FLOAT DEFAULT 0.85, |
| 116 |
PRIMARY KEY (id) |
| 117 |
) $charset_collate;"; |
| 118 |
|
| 119 |
require_once ABSPATH . 'wp-admin/includes/upgrade.php'; |
| 120 |
|
| 121 |
// Create or update tables |
| 122 |
dbDelta($sql_chat_transcripts); |
| 123 |
dbDelta($sql_system_prompt); |
| 124 |
dbDelta($sql_intents_table); |
| 125 |
|
| 126 |
// NEW: Create URL click tracking table |
| 127 |
mxchat_create_url_clicks_table(); |
| 128 |
|
| 129 |
// Ensure additional columns in `mxchat_chat_transcripts` |
| 130 |
mxchat_add_missing_columns($chat_transcripts_table, 'user_identifier', 'VARCHAR(255)'); |
| 131 |
mxchat_add_missing_columns($chat_transcripts_table, 'user_email', 'VARCHAR(255) DEFAULT NULL'); |
| 132 |
|
| 133 |
// NEW: Add originating page tracking columns |
| 134 |
mxchat_add_missing_columns($chat_transcripts_table, 'originating_page_url', 'TEXT DEFAULT NULL'); |
| 135 |
mxchat_add_missing_columns($chat_transcripts_table, 'originating_page_title', 'VARCHAR(500) DEFAULT NULL'); |
| 136 |
|
| 137 |
// Ensure additional columns in `mxchat_system_prompt_content` |
| 138 |
mxchat_add_missing_columns($system_prompt_table, 'embedding_vector', 'LONGTEXT'); |
| 139 |
mxchat_add_missing_columns($system_prompt_table, 'source_url', 'VARCHAR(255) DEFAULT NULL'); |
| 140 |
|
| 141 |
// Set default thresholds for existing intents |
| 142 |
$wpdb->query("UPDATE {$intents_table} SET similarity_threshold = 0.85 WHERE similarity_threshold IS NULL"); |
| 143 |
mxchat_add_missing_columns($intents_table, 'enabled', 'TINYINT(1) NOT NULL DEFAULT 1'); |
| 144 |
|
| 145 |
// SETUP CRON JOB HERE (ONCE ON ACTIVATION) |
| 146 |
mxchat_setup_cron_jobs(); |
| 147 |
|
| 148 |
// Use the constant instead of hardcoded version |
| 149 |
update_option('mxchat_plugin_version', MXCHAT_VERSION); |
| 150 |
} |
| 151 |
|
| 152 |
/** |
| 153 |
* Setup cron jobs on plugin activation |
| 154 |
*/ |
| 155 |
function mxchat_setup_cron_jobs() { |
| 156 |
// Clear any existing cron jobs first |
| 157 |
wp_clear_scheduled_hook('mxchat_reset_rate_limits'); |
| 158 |
|
| 159 |
// Check if WordPress cron is disabled |
| 160 |
if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) { |
| 161 |
// Set flag to use fallback system |
| 162 |
update_option('mxchat_use_fallback_rate_limits', true); |
| 163 |
update_option('mxchat_next_rate_limit_check', time() + 3600); |
| 164 |
//error_log('MxChat: WordPress cron disabled, using fallback system'); |
| 165 |
return; |
| 166 |
} |
| 167 |
|
| 168 |
// Schedule the rate limit reset cron job |
| 169 |
$result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits'); |
| 170 |
|
| 171 |
if ($result === false) { |
| 172 |
// Fallback if scheduling fails |
| 173 |
update_option('mxchat_use_fallback_rate_limits', true); |
| 174 |
update_option('mxchat_next_rate_limit_check', time() + 3600); |
| 175 |
//error_log('MxChat: Failed to schedule cron on activation, using fallback'); |
| 176 |
} else { |
| 177 |
// Clear fallback flags if cron scheduling succeeded |
| 178 |
delete_option('mxchat_use_fallback_rate_limits'); |
| 179 |
//error_log('MxChat: Successfully scheduled cron on activation'); |
| 180 |
} |
| 181 |
} |
| 182 |
|
| 183 |
/** |
| 184 |
* Clean up on plugin deactivation |
| 185 |
*/ |
| 186 |
function mxchat_deactivate() { |
| 187 |
// Clear scheduled cron jobs |
| 188 |
wp_clear_scheduled_hook('mxchat_reset_rate_limits'); |
| 189 |
|
| 190 |
// Clear fallback options |
| 191 |
delete_option('mxchat_use_fallback_rate_limits'); |
| 192 |
delete_option('mxchat_next_rate_limit_check'); |
| 193 |
delete_option('mxchat_fallback_check_interval'); |
| 194 |
|
| 195 |
//error_log('MxChat: Cleaned up cron jobs on deactivation'); |
| 196 |
} |
| 197 |
|
| 198 |
/** |
| 199 |
* Check if fallback rate limit cleanup is needed |
| 200 |
*/ |
| 201 |
function mxchat_check_fallback_rate_limits() { |
| 202 |
$use_fallback = get_option('mxchat_use_fallback_rate_limits', false); |
| 203 |
|
| 204 |
if (!$use_fallback) { |
| 205 |
return; |
| 206 |
} |
| 207 |
|
| 208 |
$next_check = get_option('mxchat_next_rate_limit_check', 0); |
| 209 |
|
| 210 |
if (time() >= $next_check) { |
| 211 |
// Only run reset if the MxChat_Integrator class exists |
| 212 |
if (class_exists('MxChat_Integrator')) { |
| 213 |
$integrator = new MxChat_Integrator(); |
| 214 |
if (method_exists($integrator, 'mxchat_reset_rate_limits')) { |
| 215 |
$integrator->mxchat_reset_rate_limits(); |
| 216 |
update_option('mxchat_next_rate_limit_check', time() + 3600); |
| 217 |
} |
| 218 |
} |
| 219 |
} |
| 220 |
} |
| 221 |
|
| 222 |
function mxchat_add_missing_columns($table, $column_name, $column_type) { |
| 223 |
global $wpdb; |
| 224 |
$column_exists = $wpdb->get_results($wpdb->prepare("SHOW COLUMNS FROM $table LIKE %s", $column_name)); |
| 225 |
if (empty($column_exists)) { |
| 226 |
$wpdb->query("ALTER TABLE $table ADD COLUMN $column_name $column_type"); |
| 227 |
} |
| 228 |
} |
| 229 |
|
| 230 |
function mxchat_check_for_update() { |
| 231 |
try { |
| 232 |
$current_version = get_option('mxchat_plugin_version'); |
| 233 |
$plugin_version = MXCHAT_VERSION; |
| 234 |
|
| 235 |
if ($current_version !== $plugin_version) { |
| 236 |
// Run live agent update BEFORE updating the stored version |
| 237 |
mxchat_handle_live_agent_update(); |
| 238 |
|
| 239 |
// Run existing update processes |
| 240 |
mxchat_activate(); |
| 241 |
mxchat_migrate_live_agent_status(); |
| 242 |
|
| 243 |
// Add the new cleanup function for version 2.1.8 |
| 244 |
if (version_compare($current_version, '2.1.8', '<')) { |
| 245 |
$deleted = mxchat_cleanup_orphaned_chat_history(); |
| 246 |
} |
| 247 |
|
| 248 |
// Update version LAST so the live agent update logic can work |
| 249 |
update_option('mxchat_plugin_version', $plugin_version); |
| 250 |
} |
| 251 |
} catch (Exception $e) { |
| 252 |
//error_log('MxChat update error: ' . $e->getMessage()); |
| 253 |
// Don't update version if there was an error |
| 254 |
} |
| 255 |
} |
| 256 |
|
| 257 |
/** |
| 258 |
* Clean up orphaned chat history options from the wp_options table |
| 259 |
* @return int Number of options deleted |
| 260 |
*/ |
| 261 |
function mxchat_cleanup_orphaned_chat_history() { |
| 262 |
global $wpdb; |
| 263 |
$count = 0; |
| 264 |
|
| 265 |
// Get all option keys that match our pattern |
| 266 |
$history_options = $wpdb->get_results( |
| 267 |
"SELECT option_name FROM {$wpdb->options} |
| 268 |
WHERE option_name LIKE 'mxchat_history_%'" |
| 269 |
); |
| 270 |
|
| 271 |
if (!empty($history_options)) { |
| 272 |
foreach ($history_options as $option) { |
| 273 |
// Extract the session ID from the option name |
| 274 |
$session_id = str_replace('mxchat_history_', '', $option->option_name); |
| 275 |
|
| 276 |
// Check if this session still exists in the custom table |
| 277 |
$table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; |
| 278 |
$exists = $wpdb->get_var( |
| 279 |
$wpdb->prepare( |
| 280 |
"SELECT COUNT(*) FROM {$table_name} WHERE session_id = %s", |
| 281 |
$session_id |
| 282 |
) |
| 283 |
); |
| 284 |
|
| 285 |
// If session doesn't exist in the main table, delete the option |
| 286 |
if ($exists == 0) { |
| 287 |
delete_option($option->option_name); |
| 288 |
// Also delete related metadata |
| 289 |
delete_option("mxchat_email_{$session_id}"); |
| 290 |
delete_option("mxchat_agent_name_{$session_id}"); |
| 291 |
$count++; |
| 292 |
} |
| 293 |
} |
| 294 |
} |
| 295 |
|
| 296 |
return $count; |
| 297 |
} |
| 298 |
|
| 299 |
function mxchat_migrate_live_agent_status() { |
| 300 |
$options = get_option('mxchat_options', []); |
| 301 |
|
| 302 |
// Check if live_agent_status exists |
| 303 |
if (isset($options['live_agent_status'])) { |
| 304 |
$current_status = $options['live_agent_status']; |
| 305 |
$needs_update = false; |
| 306 |
|
| 307 |
// Convert to new format if needed |
| 308 |
if ($current_status === 'online') { |
| 309 |
$options['live_agent_status'] = 'on'; |
| 310 |
$needs_update = true; |
| 311 |
} else if ($current_status === 'offline') { |
| 312 |
$options['live_agent_status'] = 'off'; |
| 313 |
$needs_update = true; |
| 314 |
} else if (!in_array($current_status, ['on', 'off'])) { |
| 315 |
// Default to off for any unexpected values |
| 316 |
$options['live_agent_status'] = 'off'; |
| 317 |
$needs_update = true; |
| 318 |
} |
| 319 |
|
| 320 |
// Only update if needed |
| 321 |
if ($needs_update) { |
| 322 |
update_option('mxchat_options', $options); |
| 323 |
} |
| 324 |
} else { |
| 325 |
// If status doesn't exist, set default to off |
| 326 |
$options['live_agent_status'] = 'off'; |
| 327 |
update_option('mxchat_options', $options); |
| 328 |
} |
| 329 |
} |
| 330 |
|
| 331 |
function mxchat_handle_live_agent_update() { |
| 332 |
// Get the CURRENT stored version (before it gets updated) |
| 333 |
$current_version = get_option('mxchat_plugin_version', '0.0.0'); |
| 334 |
$new_version = '2.2.2'; |
| 335 |
|
| 336 |
// Only run this once for the update to 2.2.2 |
| 337 |
$update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false); |
| 338 |
|
| 339 |
// Check if we're upgrading TO 2.2.2 and haven't handled this yet |
| 340 |
if (version_compare($current_version, $new_version, '<') && !$update_handled) { |
| 341 |
$options = get_option('mxchat_options', array()); |
| 342 |
|
| 343 |
// Check if live agent was previously enabled |
| 344 |
if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') { |
| 345 |
// Disable live agent |
| 346 |
$options['live_agent_status'] = 'off'; |
| 347 |
update_option('mxchat_options', $options); |
| 348 |
|
| 349 |
// Set flag to show the notification banner |
| 350 |
update_option('mxchat_show_live_agent_disabled_notice', true); |
| 351 |
} |
| 352 |
|
| 353 |
// Mark this update as handled |
| 354 |
update_option('mxchat_live_agent_update_2_2_2_handled', true); |
| 355 |
} |
| 356 |
} |
| 357 |
|
| 358 |
// Initialize plugin safely |
| 359 |
function mxchat_init() { |
| 360 |
// Include all class files first |
| 361 |
mxchat_include_classes(); |
| 362 |
|
| 363 |
// Run update check |
| 364 |
mxchat_check_for_update(); |
| 365 |
|
| 366 |
// Add fallback rate limit check |
| 367 |
add_action('init', 'mxchat_check_fallback_rate_limits', 5); |
| 368 |
|
| 369 |
// Initialize classes with error handling |
| 370 |
try { |
| 371 |
// Initialize admin classes |
| 372 |
if (is_admin()) { |
| 373 |
if (class_exists('MxChat_Knowledge_Manager')) { |
| 374 |
$mxchat_knowledge_manager = new MxChat_Knowledge_Manager(); |
| 375 |
|
| 376 |
if (class_exists('MxChat_Admin')) { |
| 377 |
$mxchat_admin = new MxChat_Admin($mxchat_knowledge_manager); |
| 378 |
} |
| 379 |
} |
| 380 |
} |
| 381 |
|
| 382 |
// Initialize public classes |
| 383 |
if (class_exists('MxChat_Public')) { |
| 384 |
$mxchat_public = new MxChat_Public(); |
| 385 |
} |
| 386 |
|
| 387 |
if (class_exists('MxChat_Integrator')) { |
| 388 |
$mxchat_integrator = new MxChat_Integrator(); |
| 389 |
} |
| 390 |
|
| 391 |
} catch (Exception $e) { |
| 392 |
//error_log('MxChat initialization error: ' . $e->getMessage()); |
| 393 |
|
| 394 |
// Show admin notice if there's an error |
| 395 |
if (is_admin()) { |
| 396 |
add_action('admin_notices', function() use ($e) { |
| 397 |
echo '<div class="notice notice-error"><p>'; |
| 398 |
echo '<strong>MxChat Error:</strong> Plugin initialization failed. '; |
| 399 |
echo 'Please check error logs or contact support. Error: ' . esc_html($e->getMessage()); |
| 400 |
echo '</p></div>'; |
| 401 |
}); |
| 402 |
} |
| 403 |
} |
| 404 |
} |
| 405 |
|
| 406 |
// Run initialization on plugins_loaded |
| 407 |
add_action('plugins_loaded', 'mxchat_init'); |
| 408 |
|
| 409 |
// Register activation hook |
| 410 |
register_activation_hook(__FILE__, 'mxchat_activate'); |
| 411 |
|
| 412 |
// Add cron schedule |
| 413 |
add_filter('cron_schedules', function($schedules) { |
| 414 |
$schedules['one_minute'] = array( |
| 415 |
'interval' => 60, |
| 416 |
'display' => 'Every Minute' |
| 417 |
); |
| 418 |
return $schedules; |
| 419 |
}); |
| 420 |
|
| 421 |
// Register deactivation hook |
| 422 |
register_deactivation_hook(__FILE__, 'mxchat_deactivate'); |
