| 1 |
<?php |
| 2 |
/** |
| 3 |
* WordPress Error Handler for Sentry Integration |
| 4 |
* |
| 5 |
* Automatically captures WordPress errors and sends them to Sentry |
| 6 |
* Includes WP URL and Plugin Version as required |
| 7 |
*/ |
| 8 |
|
| 9 |
// If this file is called directly, abort. |
| 10 |
if (!defined('WPINC')) { |
| 11 |
die; |
| 12 |
} |
| 13 |
|
| 14 |
require_once __DIR__ . '/privacy.php'; |
| 15 |
|
| 16 |
/** |
| 17 |
* WordPress Error Handler Class |
| 18 |
*/ |
| 19 |
class MetaSync_WordPress_Error_Handler { |
| 20 |
|
| 21 |
/** |
| 22 |
* Plugin directory for filtering errors |
| 23 |
*/ |
| 24 |
private $plugin_dir; |
| 25 |
|
| 26 |
/** |
| 27 |
* Plugin slug for filtering |
| 28 |
*/ |
| 29 |
private $plugin_slug = 'metasync'; |
| 30 |
|
| 31 |
/** |
| 32 |
* Previous error handler to restore |
| 33 |
*/ |
| 34 |
private $previous_error_handler; |
| 35 |
|
| 36 |
/** |
| 37 |
* Previous exception handler to restore |
| 38 |
*/ |
| 39 |
private $previous_exception_handler; |
| 40 |
|
| 41 |
/** |
| 42 |
* Track sent errors to prevent duplicates (in-memory cache) |
| 43 |
*/ |
| 44 |
private $sent_errors = array(); |
| 45 |
|
| 46 |
/** |
| 47 |
* Maximum number of errors to track in memory |
| 48 |
*/ |
| 49 |
private $max_tracked_errors = 100; |
| 50 |
|
| 51 |
/** |
| 52 |
* Transient key for persistent error tracking |
| 53 |
*/ |
| 54 |
private $transient_key = 'metasync_sent_errors'; |
| 55 |
|
| 56 |
/** |
| 57 |
* How long to remember sent errors (in seconds) |
| 58 |
* 15 minutes — same error won't be re-sent within this window |
| 59 |
*/ |
| 60 |
private $error_memory_duration = 900; |
| 61 |
|
| 62 |
/** |
| 63 |
* Constructor |
| 64 |
*/ |
| 65 |
public function __construct() { |
| 66 |
$this->plugin_dir = dirname(__DIR__); // Parent directory of telemetry folder |
| 67 |
$this->load_sent_errors_from_cache(); |
| 68 |
$this->setup_error_handlers(); |
| 69 |
} |
| 70 |
|
| 71 |
/** |
| 72 |
* Load previously sent errors from persistent cache |
| 73 |
*/ |
| 74 |
private function load_sent_errors_from_cache() { |
| 75 |
$cached_errors = get_transient($this->transient_key); |
| 76 |
if (is_array($cached_errors)) { |
| 77 |
$this->sent_errors = $cached_errors; |
| 78 |
} |
| 79 |
} |
| 80 |
|
| 81 |
/** |
| 82 |
* Save sent errors to persistent cache |
| 83 |
*/ |
| 84 |
private function save_sent_errors_to_cache() { |
| 85 |
set_transient($this->transient_key, $this->sent_errors, $this->error_memory_duration); |
| 86 |
} |
| 87 |
|
| 88 |
/** |
| 89 |
* Setup WordPress error handlers - Only for plugin-specific errors |
| 90 |
*/ |
| 91 |
private function setup_error_handlers() { |
| 92 |
// Store previous handlers to chain them properly |
| 93 |
$this->previous_error_handler = set_error_handler(array($this, 'capture_php_error'), E_ALL); |
| 94 |
$this->previous_exception_handler = set_exception_handler(array($this, 'capture_exception')); |
| 95 |
|
| 96 |
// Hook into WordPress fatal error handler (only for plugin errors) |
| 97 |
add_filter('wp_fatal_error_handler', array($this, 'capture_fatal_error')); |
| 98 |
|
| 99 |
// Hook into plugin activation/deactivation errors (only for our plugin) |
| 100 |
add_action('activated_plugin', array($this, 'capture_plugin_activation'), 10, 2); |
| 101 |
add_action('deactivated_plugin', array($this, 'capture_plugin_deactivation'), 10, 2); |
| 102 |
|
| 103 |
// Hook into WordPress shutdown to catch fatal errors (only plugin-related) |
| 104 |
register_shutdown_function(array($this, 'capture_shutdown_error')); |
| 105 |
|
| 106 |
// Remove wp_die handler as it captures too many system errors |
| 107 |
// add_action('wp_die_handler', array($this, 'capture_wp_die'), 10, 1); |
| 108 |
} |
| 109 |
|
| 110 |
/** |
| 111 |
* Capture WordPress die events - REMOVED |
| 112 |
* This method was too broad and captured system-wide wp_die events |
| 113 |
* We now only capture plugin-specific errors through other handlers |
| 114 |
*/ |
| 115 |
// public function capture_wp_die($message) - REMOVED TO PREVENT SYSTEM-WIDE ERROR CAPTURE |
| 116 |
|
| 117 |
/** |
| 118 |
* Capture PHP errors - Only fatal-level plugin-specific errors |
| 119 |
*/ |
| 120 |
public function capture_php_error($severity, $message, $file, $line) { |
| 121 |
// First, call the previous error handler if it exists |
| 122 |
$handled = false; |
| 123 |
if ($this->previous_error_handler && is_callable($this->previous_error_handler)) { |
| 124 |
$handled = call_user_func($this->previous_error_handler, $severity, $message, $file, $line); |
| 125 |
} |
| 126 |
|
| 127 |
// Only capture fatal-level errors — skip warnings, notices, deprecated, strict |
| 128 |
$fatal_severities = [E_USER_ERROR, E_RECOVERABLE_ERROR]; |
| 129 |
if (!in_array($severity, $fatal_severities, true)) { |
| 130 |
return $handled; |
| 131 |
} |
| 132 |
|
| 133 |
// Only capture errors from our plugin or directly related to our plugin |
| 134 |
if ($this->should_capture_error($file)) { |
| 135 |
$this->send_to_sentry('php_error', $message, array( |
| 136 |
'error_type' => 'php_error', |
| 137 |
'severity' => $severity, |
| 138 |
'file' => $file, |
| 139 |
'line' => $line, |
| 140 |
'error_level' => $this->get_error_level($severity), |
| 141 |
'backtrace' => debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 10) |
| 142 |
)); |
| 143 |
} |
| 144 |
|
| 145 |
// Return the result from the previous handler, or false to continue normal error handling |
| 146 |
return $handled; |
| 147 |
} |
| 148 |
|
| 149 |
/** |
| 150 |
* Capture uncaught exceptions - Only plugin-specific exceptions |
| 151 |
*/ |
| 152 |
public function capture_exception($exception) { |
| 153 |
// First, call the previous exception handler if it exists |
| 154 |
if ($this->previous_exception_handler && is_callable($this->previous_exception_handler)) { |
| 155 |
call_user_func($this->previous_exception_handler, $exception); |
| 156 |
} |
| 157 |
|
| 158 |
// Only capture exceptions from our plugin or directly related to our plugin |
| 159 |
if ($this->should_capture_error($exception->getFile())) { |
| 160 |
$this->send_to_sentry('exception', $exception->getMessage(), array( |
| 161 |
'error_type' => 'uncaught_exception', |
| 162 |
'exception_class' => get_class($exception), |
| 163 |
'file' => $exception->getFile(), |
| 164 |
'line' => $exception->getLine(), |
| 165 |
'trace' => $exception->getTraceAsString(), |
| 166 |
'exception_object' => $exception |
| 167 |
)); |
| 168 |
} |
| 169 |
} |
| 170 |
|
| 171 |
/** |
| 172 |
* Capture fatal errors |
| 173 |
*/ |
| 174 |
public function capture_fatal_error($error) { |
| 175 |
if (is_array($error) && $this->should_capture_error($error['file'] ?? '')) { |
| 176 |
$this->send_to_sentry('fatal_error', $error['message'] ?? 'Fatal error', array( |
| 177 |
'error_type' => 'fatal_error', |
| 178 |
'error_details' => $error, |
| 179 |
'file' => $error['file'] ?? 'unknown', |
| 180 |
'line' => $error['line'] ?? 0 |
| 181 |
)); |
| 182 |
} |
| 183 |
return $error; |
| 184 |
} |
| 185 |
|
| 186 |
/** |
| 187 |
* Capture shutdown errors |
| 188 |
*/ |
| 189 |
public function capture_shutdown_error() { |
| 190 |
$error = error_get_last(); |
| 191 |
if ($error && in_array($error['type'], [E_ERROR, E_PARSE, E_CORE_ERROR, E_COMPILE_ERROR])) { |
| 192 |
if ($this->should_capture_error($error['file'])) { |
| 193 |
$this->send_to_sentry('shutdown_error', $error['message'], array( |
| 194 |
'error_type' => 'shutdown_error', |
| 195 |
'error_details' => $error, |
| 196 |
'file' => $error['file'], |
| 197 |
'line' => $error['line'] |
| 198 |
)); |
| 199 |
} |
| 200 |
} |
| 201 |
} |
| 202 |
|
| 203 |
/** |
| 204 |
* Capture plugin activation events |
| 205 |
*/ |
| 206 |
public function capture_plugin_activation($plugin, $network_wide) { |
| 207 |
// Only track our plugin |
| 208 |
if (strpos($plugin, 'metasync') !== false) { |
| 209 |
$this->send_to_sentry('plugin_activation', 'Plugin activated successfully', array( |
| 210 |
'event_type' => 'plugin_lifecycle', |
| 211 |
'action' => 'activation', |
| 212 |
'plugin' => $plugin, |
| 213 |
'network_wide' => $network_wide, |
| 214 |
'wp_version' => get_bloginfo('version'), |
| 215 |
'php_version' => PHP_VERSION |
| 216 |
)); |
| 217 |
} |
| 218 |
} |
| 219 |
|
| 220 |
/** |
| 221 |
* Capture plugin deactivation events |
| 222 |
*/ |
| 223 |
public function capture_plugin_deactivation($plugin) { |
| 224 |
// Only track our plugin |
| 225 |
if (strpos($plugin, 'metasync') !== false) { |
| 226 |
$this->send_to_sentry('plugin_deactivation', 'Plugin deactivated', array( |
| 227 |
'event_type' => 'plugin_lifecycle', |
| 228 |
'action' => 'deactivation', |
| 229 |
'plugin' => $plugin, |
| 230 |
'reason' => 'user_action' |
| 231 |
)); |
| 232 |
} |
| 233 |
} |
| 234 |
|
| 235 |
/** |
| 236 |
* Determine if we should capture this error - Much more restrictive filtering |
| 237 |
*/ |
| 238 |
private function should_capture_error($file = '') { |
| 239 |
# Don't capture if no file specified - this prevents capturing system-wide errors |
| 240 |
if (empty($file)) { |
| 241 |
return false; |
| 242 |
} |
| 243 |
|
| 244 |
# Primary check: error must be directly from our plugin directory |
| 245 |
if (strpos($file, $this->plugin_dir) !== false) { |
| 246 |
return true; |
| 247 |
} |
| 248 |
|
| 249 |
# Secondary check: error must be in a file that contains our plugin slug |
| 250 |
if (strpos($file, $this->plugin_slug) !== false) { |
| 251 |
return true; |
| 252 |
} |
| 253 |
|
| 254 |
# REMOVED: Tertiary backtrace check that was too broad |
| 255 |
# The previous backtrace logic was capturing errors from other plugins |
| 256 |
# that happened to be called during MetaSync execution. We now only |
| 257 |
# capture errors that directly originate from MetaSync files. |
| 258 |
|
| 259 |
# Additional check: Only capture if the error file path contains 'metasync' |
| 260 |
# This is a more conservative approach to avoid false positives |
| 261 |
$file_lower = strtolower($file); |
| 262 |
if (strpos($file_lower, 'metasync') !== false) { |
| 263 |
return true; |
| 264 |
} |
| 265 |
|
| 266 |
return false; |
| 267 |
} |
| 268 |
|
| 269 |
/** |
| 270 |
* Check if the current environment is localhost/development |
| 271 |
*/ |
| 272 |
private function is_localhost() { |
| 273 |
$host = parse_url(home_url(), PHP_URL_HOST); |
| 274 |
|
| 275 |
// Check for common localhost patterns |
| 276 |
$localhost_patterns = [ |
| 277 |
'localhost', |
| 278 |
'127.0.0.1', |
| 279 |
'::1', |
| 280 |
'0.0.0.0', |
| 281 |
'.local', |
| 282 |
'.test', |
| 283 |
'.dev', |
| 284 |
'.localhost' |
| 285 |
]; |
| 286 |
|
| 287 |
foreach ($localhost_patterns as $pattern) { |
| 288 |
if (strpos($host, $pattern) !== false) { |
| 289 |
return true; |
| 290 |
} |
| 291 |
} |
| 292 |
|
| 293 |
// Check if host is an IP address in private ranges |
| 294 |
if (filter_var($host, FILTER_VALIDATE_IP)) { |
| 295 |
$ip = ip2long($host); |
| 296 |
if ($ip !== false) { |
| 297 |
// Private IP ranges: 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16 |
| 298 |
if (($ip >= ip2long('10.0.0.0') && $ip <= ip2long('10.255.255.255')) || |
| 299 |
($ip >= ip2long('172.16.0.0') && $ip <= ip2long('172.31.255.255')) || |
| 300 |
($ip >= ip2long('192.168.0.0') && $ip <= ip2long('192.168.255.255'))) { |
| 301 |
return true; |
| 302 |
} |
| 303 |
} |
| 304 |
} |
| 305 |
|
| 306 |
return false; |
| 307 |
} |
| 308 |
|
| 309 |
/** |
| 310 |
* Send error to Sentry with required metadata |
| 311 |
*/ |
| 312 |
private function send_to_sentry($error_type, $message, $context = array()) { |
| 313 |
// Skip sending to Sentry if running on localhost/development environment |
| 314 |
if ($this->is_localhost()) { |
| 315 |
return; |
| 316 |
} |
| 317 |
|
| 318 |
// Generate error fingerprint for deduplication |
| 319 |
$error_fingerprint = $this->generate_error_fingerprint($error_type, $message, $context); |
| 320 |
|
| 321 |
// Check if this error has already been sent |
| 322 |
if ($this->is_error_already_sent($error_fingerprint)) { |
| 323 |
return; // Skip sending duplicate error |
| 324 |
} |
| 325 |
|
| 326 |
// Add required metadata |
| 327 |
$context = array_merge($context, array( |
| 328 |
'wp_url' => home_url(), |
| 329 |
'plugin_version' => defined('METASYNC_VERSION') ? METASYNC_VERSION : '1.0.0', |
| 330 |
'plugin_name' => 'Search Engine Labs SEO (MetaSync)', |
| 331 |
'error_timestamp' => date('Y-m-d H:i:s'), |
| 332 |
'site_info' => array( |
| 333 |
'site_title' => get_bloginfo('name'), |
| 334 |
'wp_version' => get_bloginfo('version'), |
| 335 |
'admin_email' => get_bloginfo('admin_email'), |
| 336 |
'active_theme' => get_template(), |
| 337 |
'php_version' => PHP_VERSION, |
| 338 |
'memory_limit' => ini_get('memory_limit'), |
| 339 |
'multisite' => is_multisite() |
| 340 |
), |
| 341 |
'request_info' => array( |
| 342 |
'url' => metasync_telemetry_request_path(), |
| 343 |
'method' => $_SERVER['REQUEST_METHOD'] ?? 'unknown', |
| 344 |
'user_agent' => $_SERVER['HTTP_USER_AGENT'] ?? 'unknown', |
| 345 |
'referer' => isset($_SERVER['HTTP_REFERER']) |
| 346 |
? metasync_telemetry_request_path($_SERVER['HTTP_REFERER']) |
| 347 |
: 'none' |
| 348 |
) |
| 349 |
)); |
| 350 |
|
| 351 |
// Determine severity level |
| 352 |
$level = $this->get_sentry_level($error_type); |
| 353 |
|
| 354 |
// Only send fatal/error-level events — drop info, warning, debug |
| 355 |
if (!in_array($level, ['error', 'fatal'], true)) { |
| 356 |
return; |
| 357 |
} |
| 358 |
|
| 359 |
// Send directly to Sentry (wordpress-error-handler is the primary/only error capture point) |
| 360 |
$sentry_success = false; |
| 361 |
|
| 362 |
if (function_exists('metasync_sentry_capture_exception') && isset($context['exception_object'])) { |
| 363 |
$sentry_success = metasync_sentry_capture_exception($context['exception_object'], $context); |
| 364 |
} elseif (function_exists('metasync_sentry_capture_message')) { |
| 365 |
$sentry_success = metasync_sentry_capture_message($message, $level, $context); |
| 366 |
} |
| 367 |
|
| 368 |
// Only mark as sent if Sentry call was successful |
| 369 |
if ($sentry_success) { |
| 370 |
$this->mark_error_as_sent($error_fingerprint); |
| 371 |
} |
| 372 |
} |
| 373 |
|
| 374 |
/** |
| 375 |
* Get error level name |
| 376 |
*/ |
| 377 |
private function get_error_level($severity) { |
| 378 |
$levels = array( |
| 379 |
E_ERROR => 'E_ERROR', |
| 380 |
E_WARNING => 'E_WARNING', |
| 381 |
E_PARSE => 'E_PARSE', |
| 382 |
E_NOTICE => 'E_NOTICE', |
| 383 |
E_CORE_ERROR => 'E_CORE_ERROR', |
| 384 |
E_CORE_WARNING => 'E_CORE_WARNING', |
| 385 |
E_COMPILE_ERROR => 'E_COMPILE_ERROR', |
| 386 |
E_COMPILE_WARNING => 'E_COMPILE_WARNING', |
| 387 |
E_USER_ERROR => 'E_USER_ERROR', |
| 388 |
E_USER_WARNING => 'E_USER_WARNING', |
| 389 |
E_USER_NOTICE => 'E_USER_NOTICE', |
| 390 |
E_STRICT => 'E_STRICT', |
| 391 |
E_RECOVERABLE_ERROR => 'E_RECOVERABLE_ERROR', |
| 392 |
E_DEPRECATED => 'E_DEPRECATED', |
| 393 |
E_USER_DEPRECATED => 'E_USER_DEPRECATED' |
| 394 |
); |
| 395 |
|
| 396 |
return $levels[$severity] ?? 'UNKNOWN'; |
| 397 |
} |
| 398 |
|
| 399 |
/** |
| 400 |
* Get Sentry level from error type |
| 401 |
*/ |
| 402 |
private function get_sentry_level($error_type) { |
| 403 |
$levels = array( |
| 404 |
'php_error' => 'error', |
| 405 |
'exception' => 'error', |
| 406 |
'uncaught_exception' => 'error', |
| 407 |
'fatal_error' => 'fatal', |
| 408 |
'shutdown_error' => 'fatal', |
| 409 |
'wp_die' => 'error', |
| 410 |
'plugin_activation' => 'info', |
| 411 |
'plugin_deactivation' => 'info' |
| 412 |
); |
| 413 |
|
| 414 |
return $levels[$error_type] ?? 'error'; |
| 415 |
} |
| 416 |
|
| 417 |
/** |
| 418 |
* Generate a unique fingerprint for an error to detect duplicates |
| 419 |
* |
| 420 |
* @param string $error_type Type of error |
| 421 |
* @param string $message Error message |
| 422 |
* @param array $context Error context |
| 423 |
* @return string Unique fingerprint |
| 424 |
*/ |
| 425 |
private function generate_error_fingerprint($error_type, $message, $context = array()) { |
| 426 |
// Create a fingerprint based on key error characteristics |
| 427 |
$fingerprint_data = array( |
| 428 |
'error_type' => $error_type, |
| 429 |
'message' => $message, |
| 430 |
'file' => $context['file'] ?? '', |
| 431 |
'line' => $context['line'] ?? 0, |
| 432 |
'exception_class' => $context['exception_class'] ?? '', |
| 433 |
'severity' => $context['severity'] ?? 0 |
| 434 |
); |
| 435 |
|
| 436 |
// Create a hash of the fingerprint data |
| 437 |
return md5(serialize($fingerprint_data)); |
| 438 |
} |
| 439 |
|
| 440 |
/** |
| 441 |
* Check if an error has already been sent |
| 442 |
* |
| 443 |
* @param string $error_fingerprint Error fingerprint |
| 444 |
* @return bool True if already sent |
| 445 |
*/ |
| 446 |
private function is_error_already_sent($error_fingerprint) { |
| 447 |
// Check if error exists and hasn't expired |
| 448 |
if (isset($this->sent_errors[$error_fingerprint])) { |
| 449 |
$sent_time = $this->sent_errors[$error_fingerprint]; |
| 450 |
$time_elapsed = time() - $sent_time; |
| 451 |
|
| 452 |
// If error was sent recently (within memory duration), skip it |
| 453 |
if ($time_elapsed < $this->error_memory_duration) { |
| 454 |
return true; |
| 455 |
} else { |
| 456 |
// Error has expired, remove it from cache |
| 457 |
unset($this->sent_errors[$error_fingerprint]); |
| 458 |
$this->save_sent_errors_to_cache(); |
| 459 |
} |
| 460 |
} |
| 461 |
|
| 462 |
return false; |
| 463 |
} |
| 464 |
|
| 465 |
/** |
| 466 |
* Mark an error as sent to prevent duplicates |
| 467 |
* |
| 468 |
* @param string $error_fingerprint Error fingerprint |
| 469 |
*/ |
| 470 |
private function mark_error_as_sent($error_fingerprint) { |
| 471 |
// Add to sent errors array |
| 472 |
$this->sent_errors[$error_fingerprint] = time(); |
| 473 |
|
| 474 |
// Clean up old entries to prevent memory bloat |
| 475 |
$this->cleanup_old_errors(); |
| 476 |
|
| 477 |
// Persist to cache |
| 478 |
$this->save_sent_errors_to_cache(); |
| 479 |
} |
| 480 |
|
| 481 |
/** |
| 482 |
* Clean up old error entries to prevent memory bloat |
| 483 |
*/ |
| 484 |
private function cleanup_old_errors() { |
| 485 |
$current_time = time(); |
| 486 |
|
| 487 |
// Remove expired errors |
| 488 |
foreach ($this->sent_errors as $fingerprint => $timestamp) { |
| 489 |
if ($current_time - $timestamp > $this->error_memory_duration) { |
| 490 |
unset($this->sent_errors[$fingerprint]); |
| 491 |
} |
| 492 |
} |
| 493 |
|
| 494 |
// If we still have too many errors tracked, remove the oldest ones |
| 495 |
if (count($this->sent_errors) > $this->max_tracked_errors) { |
| 496 |
// Sort by timestamp (oldest first) |
| 497 |
asort($this->sent_errors); |
| 498 |
|
| 499 |
// Remove oldest entries, keeping only the most recent ones |
| 500 |
$errors_to_remove = count($this->sent_errors) - $this->max_tracked_errors; |
| 501 |
$this->sent_errors = array_slice($this->sent_errors, $errors_to_remove, null, true); |
| 502 |
} |
| 503 |
} |
| 504 |
} |
| 505 |
|
| 506 |
// Initialize the error handler immediately when this file is loaded |
| 507 |
// This ensures we catch errors that happen during plugin initialization |
| 508 |
// Must be initialized early to catch parse errors and fatal errors |
| 509 |
if (!metasync_telemetry_is_disabled() && class_exists('MetaSync_WordPress_Error_Handler')) { |
| 510 |
new MetaSync_WordPress_Error_Handler(); |
| 511 |
} |
| 512 |
?> |
| 513 |
|
