| @@ -23,8 +23,32 @@ | ||
| 23 | 23 | class Metasync_Activator |
| 24 | 24 | { |
| 25 | 25 | |
| 26 | 26 | /** |
| 27 | + * Option recording the last failed White Label JSON import. | |
| 28 | + * Stores array{file_hash: string, failed_at: int, error: string}. | |
| 29 | + * | |
| 30 | + * @var string | |
| 31 | + */ | |
| 32 | + const IMPORT_FAILURE_OPTION = 'metasync_whitelabel_import_failure'; | |
| 33 | + | |
| 34 | + /** | |
| 35 | + * Retry cadence (seconds) for a failing White Label import so a | |
| 36 | + * broken file cannot produce a silent retry storm on every admin request. | |
| 37 | + * | |
| 38 | + * @var int | |
| 39 | + */ | |
| 40 | + const IMPORT_RETRY_BACKOFF_SECONDS = 3600; | |
| 41 | + | |
| 42 | + /** | |
| 43 | + * Machine-readable reason for the most recent import failure, consumed | |
| 44 | + * by render_whitelabel_import_failure_notice(). | |
| 45 | + * | |
| 46 | + * @var string | |
| 47 | + */ | |
| 48 | + private static $last_import_error = ''; | |
| 49 | + | |
| 50 | + /** | |
| 27 | 51 | * Canonical list of MetaSync custom WP-Cron hooks. |
| 28 | 52 | * Shared with Metasync_Deactivator so deactivation cleans up every scheduled hook. |
| 29 | 53 | * |
| 30 | 54 | * @since 2.5.x |
| @@ -45,8 +69,10 @@ | ||
| 45 | 69 | 'metasync_speed_cache_cleanup', |
| 46 | 70 | 'metasync_process_seo_job', |
| 47 | 71 | 'metasync_process_otto_crawl_url_job', |
| 48 | 72 | 'metasync_process_otto_batch_cache_job', |
| 73 | + 'metasync_host_blocking_check', | |
| 74 | + 'metasync_host_blocking_weekly_check', | |
| 49 | 75 | ]; |
| 50 | 76 | |
| 51 | 77 | /** |
| 52 | 78 | * Short Description. (use period) |
| @@ -66,9 +92,9 @@ | ||
| 66 | 92 | self::ensure_plugin_auth_token(); |
| 67 | 93 | |
| 68 | 94 | // Import whitelabel settings only if the JSON file is new or changed |
| 69 | 95 | // (prevents overwriting admin UI changes on every deactivate/activate cycle) |
| 70 | - self::check_whitelabel_settings_update(); | |
| 96 | + self::check_whitelabel_settings_update(true); | |
| 71 | 97 | |
| 72 | 98 | // Pre-SSO announce: tell backend plugin is installed (PR4 - heartbeat reliability) |
| 73 | 99 | update_option('metasync_announce_attempt_count', 0); |
| 74 | 100 | self::send_announce_ping(); |
| @@ -78,8 +104,16 @@ | ||
| 78 | 104 | if (!wp_next_scheduled('metasync_announce_cron')) { |
| 79 | 105 | wp_schedule_event(time() + 10 * MINUTE_IN_SECONDS, 'metasync_every_10_minutes', 'metasync_announce_cron'); |
| 80 | 106 | } |
| 81 | 107 | |
| 108 | + // Detect a host that blocks GET/POST between this site and Search Atlas. | |
| 109 | + // Deferred to cron (~10 minutes out) rather than run here — a blocking HTTP call | |
| 110 | + // inside the activation request is exactly what has taken slow hosts down before, | |
| 111 | + // and a firewall-blocked request is the slowest kind there is. | |
| 112 | + if (class_exists('Metasync_Host_Blocking_Check')) { | |
| 113 | + Metasync_Host_Blocking_Check::schedule_initial_check(); | |
| 114 | + } | |
| 115 | + | |
| 82 | 116 | // Set first activation flag for setup wizard |
| 83 | 117 | if (!get_option('metasync_first_activation_time')) { |
| 84 | 118 | update_option('metasync_first_activation_time', current_time('mysql')); |
| 85 | 119 | update_option('metasync_show_wizard', true); |
| @@ -195,21 +229,40 @@ | ||
| 195 | 229 | /** |
| 196 | 230 | * Check if whitelabel settings file has been updated and import if needed |
| 197 | 231 | * This method should be called on init to detect plugin uploads/updates |
| 198 | 232 | * |
| 233 | + * @param bool $trusted_update_context True only for core activation/upgrader hooks. | |
| 234 | + * @return bool Whether the file was already current or imported successfully. | |
| 199 | 235 | * @since 2.5.0 |
| 200 | 236 | */ |
| 201 | - public static function check_whitelabel_settings_update() | |
| 237 | + public static function check_whitelabel_settings_update($trusted_update_context = false) | |
| 202 | 238 | { |
| 239 | +// Never run the import from AJAX handlers. admin-ajax requests | |
| 240 | + // (notably the Forgot Password recovery call) run admin_init first, so an | |
| 241 | + // import attempted there already holds the shared recovery lock when the | |
| 242 | + // handler itself runs, and every recovery request returns HTTP 429. | |
| 243 | + // Trusted activation/upgrader contexts run once per update, not per | |
| 244 | + // request, and stay exempt. | |
| 245 | + if (!$trusted_update_context && wp_doing_ajax()) { | |
| 246 | + return false; | |
| 247 | + } | |
| 248 | + | |
| 249 | + if (!$trusted_update_context && !current_user_can('manage_options')) { | |
| 250 | + return false; | |
| 251 | + } | |
| 252 | + | |
| 203 | 253 | $json_file = self::get_whitelabel_settings_file(); |
| 204 | 254 | |
| 205 | 255 | if ($json_file === false) { |
| 206 | - return; | |
| 256 | + return false; | |
| 207 | 257 | } |
| 208 | 258 | |
| 209 | 259 | // Get current file modification time and content hash |
| 210 | 260 | $file_mtime = filemtime($json_file); |
| 211 | 261 | $file_hash = md5_file($json_file); |
| 262 | + if (!is_int($file_mtime) || !is_string($file_hash)) { | |
| 263 | + return false; | |
| 264 | + } | |
| 212 | 265 | |
| 213 | 266 | // Get stored file info |
| 214 | 267 | $stored_mtime = get_option('metasync_whitelabel_file_mtime', 0); |
| 215 | 268 | $stored_hash = get_option('metasync_whitelabel_file_hash', ''); |
| @@ -215,49 +268,123 @@ | ||
| 215 | 268 | $stored_hash = get_option('metasync_whitelabel_file_hash', ''); |
| 216 | 269 | |
| 217 | 270 | // Check if file has changed (either modification time or content) |
| 218 | 271 | if ($file_mtime > $stored_mtime || $file_hash !== $stored_hash) { |
| 272 | + // A failing import must not retry on every admin request. | |
| 273 | + // Back off per failing file hash; a successful import or a changed | |
| 274 | + // file clears the state and retries immediately. | |
| 275 | + $failure = get_option(self::IMPORT_FAILURE_OPTION, array()); | |
| 276 | + if (is_array($failure) | |
| 277 | + && isset($failure['file_hash'], $failure['failed_at']) | |
| 278 | + && (string) $failure['file_hash'] === $file_hash | |
| 279 | + && (time() - (int) $failure['failed_at']) < self::IMPORT_RETRY_BACKOFF_SECONDS) { | |
| 280 | + return false; | |
| 281 | + } | |
| 282 | + | |
| 219 | 283 | // File has changed, import settings |
| 220 | - self::import_whitelabel_settings(); | |
| 284 | + if (!self::import_whitelabel_settings()) { | |
| 285 | + update_option(self::IMPORT_FAILURE_OPTION, array( | |
| 286 | + 'file_hash' => $file_hash, | |
| 287 | + 'failed_at' => time(), | |
| 288 | + 'error' => self::$last_import_error, | |
| 289 | + )); | |
| 290 | + return false; | |
| 291 | + } | |
| 292 | + delete_option(self::IMPORT_FAILURE_OPTION); | |
| 221 | 293 | |
| 222 | - // Store new file info | |
| 294 | + // Record the file only after the complete import succeeds. | |
| 223 | 295 | update_option('metasync_whitelabel_file_mtime', $file_mtime); |
| 224 | 296 | update_option('metasync_whitelabel_file_hash', $file_hash); |
| 225 | 297 | } |
| 298 | + | |
| 299 | + return true; | |
| 226 | 300 | } |
| 227 | 301 | |
| 228 | 302 | /** |
| 303 | + * Machine-readable reason of the most recent failed White Label import. | |
| 304 | + * | |
| 305 | + * @return string | |
| 306 | + */ | |
| 307 | + public static function get_last_import_error() | |
| 308 | + { | |
| 309 | + return self::$last_import_error; | |
| 310 | + } | |
| 311 | + | |
| 312 | + /** | |
| 313 | + * Admin notice for a White Label JSON import that keeps failing. | |
| 314 | + * Registered from metasync_check_whitelabel_on_admin(); the state is set | |
| 315 | + * by check_whitelabel_settings_update() when an import fails. | |
| 316 | + * | |
| 317 | + * @return void | |
| 318 | + */ | |
| 319 | + public static function render_whitelabel_import_failure_notice() | |
| 320 | + { | |
| 321 | + if (!current_user_can('manage_options')) { | |
| 322 | + return; | |
| 323 | + } | |
| 324 | + $failure = get_option(self::IMPORT_FAILURE_OPTION, array()); | |
| 325 | + if (!is_array($failure) || empty($failure['file_hash']) || empty($failure['failed_at'])) { | |
| 326 | + return; | |
| 327 | + } | |
| 328 | + $reasons = array( | |
| 329 | + 'json_read_failed' => 'the file could not be read', | |
| 330 | + 'json_invalid' => 'the file is not valid JSON', | |
| 331 | + 'json_structure_invalid' => 'the file structure is invalid', | |
| 332 | + 'plugin_file_unreadable' => 'metasync.php could not be read', | |
| 333 | + 'plugin_header_write_failed' => 'the plugin file headers could not be updated (is metasync.php writable?)', | |
| 334 | + 'recovery_lock_busy' => 'another password operation was in progress', | |
| 335 | + 'options_write_failed' => 'the settings could not be saved', | |
| 336 | + ); | |
| 337 | + $reason = isset($failure['error'], $reasons[$failure['error']]) ? $reasons[$failure['error']] : 'an unexpected error occurred'; | |
| 338 | + echo '<div class="notice notice-error"><p><strong>White Label settings import failed.</strong> ' | |
| 339 | + . 'MetaSync could not import <code>whitelabel-settings.json</code>: ' . esc_html($reason) | |
| 340 | + . '. The import will be retried automatically; fix the file and reload to retry immediately.</p></div>'; | |
| 341 | + } | |
| 342 | + | |
| 343 | + /** | |
| 229 | 344 | * Import whitelabel settings from JSON file if available |
| 230 | 345 | * Checks for whitelabel-settings.json in the plugin directory or extracted zip |
| 231 | 346 | * |
| 232 | - * This method is public to allow calling during both activation and plugin updates. | |
| 347 | + * @return bool Whether the complete import succeeded. | |
| 233 | 348 | * @since 2.5.0 |
| 234 | 349 | */ |
| 235 | - public static function import_whitelabel_settings() | |
| 350 | + private static function import_whitelabel_settings() | |
| 236 | 351 | { |
| 237 | 352 | $json_file = self::get_whitelabel_settings_file(); |
| 238 | 353 | |
| 239 | 354 | if ($json_file === false) { |
| 240 | - return; | |
| 355 | + return false; | |
| 241 | 356 | } |
| 242 | 357 | |
| 358 | + self::$last_import_error = 'unknown'; | |
| 359 | + | |
| 243 | 360 | // Read JSON file |
| 244 | 361 | $json_content = file_get_contents($json_file); |
| 245 | 362 | if ($json_content === false) { |
| 246 | - return; | |
| 363 | + self::$last_import_error = 'json_read_failed'; | |
| 364 | + return false; | |
| 247 | 365 | } |
| 248 | 366 | |
| 249 | 367 | // Decode JSON |
| 250 | 368 | $import_data = json_decode($json_content, true); |
| 251 | 369 | if ($import_data === null || json_last_error() !== JSON_ERROR_NONE) { |
| 252 | - return; | |
| 370 | + self::$last_import_error = 'json_invalid'; | |
| 371 | + return false; | |
| 253 | 372 | } |
| 254 | 373 | |
| 255 | 374 | // Validate import data structure |
| 256 | 375 | if (!isset($import_data['whitelabel_settings']) || !is_array($import_data['whitelabel_settings'])) { |
| 257 | - return; | |
| 376 | + self::$last_import_error = 'json_structure_invalid'; | |
| 377 | + return false; | |
| 258 | 378 | } |
| 259 | 379 | |
| 380 | + $plugin_file = plugin_dir_path(dirname(__FILE__)) . 'metasync.php'; | |
| 381 | + $original_plugin_content = file_get_contents($plugin_file); | |
| 382 | + if ($original_plugin_content === false) { | |
| 383 | + self::$last_import_error = 'plugin_file_unreadable'; | |
| 384 | + return false; | |
| 385 | + } | |
| 386 | + | |
| 260 | 387 | // Get current options |
| 261 | 388 | $options = get_option('metasync_options', array()); |
| 262 | 389 | |
| 263 | 390 | // Import whitelabel settings |
| @@ -294,8 +421,17 @@ | ||
| 294 | 421 | $options['general'][$key] = $value; |
| 295 | 422 | } |
| 296 | 423 | } |
| 297 | 424 | |
| 425 | + // Validate and persist the public plugin headers before any other import side effect. | |
| 426 | + $header_data = array( | |
| 427 | + 'general_settings' => $options['general'] ?? array(), | |
| 428 | + ); | |
| 429 | + if (!self::update_plugin_file_headers($header_data, $plugin_file)) { | |
| 430 | + self::$last_import_error = 'plugin_header_write_failed'; | |
| 431 | + return false; | |
| 432 | + } | |
| 433 | + | |
| 298 | 434 | // Restore bundled icon: if the icon value is a __bundled_icon__{ext} marker, |
| 299 | 435 | // copy the bundled file from the plugin directory to uploads and update the URL. |
| 300 | 436 | $icon_value = $options['general']['white_label_plugin_menu_icon'] ?? ''; |
| 301 | 437 | if (!empty($icon_value) && strpos($icon_value, '__bundled_icon__') === 0) { |
| @@ -321,19 +457,80 @@ | ||
| 321 | 457 | $options['general']['white_label_plugin_menu_icon'] = ''; |
| 322 | 458 | } |
| 323 | 459 | } |
| 324 | 460 | |
| 325 | - // Save updated options | |
| 326 | - update_option('metasync_options', $options); | |
| 461 | + // Save updated options. | |
| 462 | +// when the package carries a settings password this is a | |
| 463 | + // legitimate import write, but the recovery protection filter treats any | |
| 464 | + // unauthenticated password write as a conflict and swaps it back to the | |
| 465 | + // stored password — the verification below could then never pass once a | |
| 466 | + // password is stored, and the retry loop would hold the shared recovery | |
| 467 | + // lock on every admin request, blocking the Forgot Password flow. | |
| 468 | + // Mirror the recovery flow's own persist path: take the lock and | |
| 469 | + // authorize the write for the duration of the save. | |
| 470 | + $carries_password = !empty($options['whitelabel']['settings_password']); | |
| 471 | + $import_lock_owner = ''; | |
| 472 | + if ($carries_password) { | |
| 473 | + require_once __DIR__ . '/class-metasync-admin-ajax.php'; | |
| 474 | + require_once __DIR__ . '/class-metasync-settings-registration.php'; | |
| 475 | + if (!self::class_supports_methods('Metasync_Admin_Ajax', array('acquire_recovery_lock', 'release_recovery_lock')) | |
| 476 | + || !self::class_supports_methods('Metasync_Settings_Registration', array('authorize_recovery_password_write'))) { | |
| 477 | + // The updater can replace plugin files after the old classes were | |
| 478 | + // loaded in this request. Defer the import to the next request. | |
| 479 | + self::$last_import_error = 'recovery_api_unavailable'; | |
| 480 | + return false; | |
| 481 | + } | |
| 482 | + if (!Metasync_Admin_Ajax::instance()->acquire_recovery_lock($import_lock_owner)) { | |
| 483 | + // A recovery or settings save is mid-write; retry via the normal | |
| 484 | + // backoff instead of fighting for the lock. | |
| 485 | + self::$last_import_error = 'recovery_lock_busy'; | |
| 486 | + return false; | |
| 487 | + } | |
| 488 | + } | |
| 489 | + try { | |
| 490 | + if ($carries_password) { | |
| 491 | + Metasync_Settings_Registration::authorize_recovery_password_write(true); | |
| 492 | + } | |
| 493 | + update_option('metasync_options', $options); | |
| 494 | + } finally { | |
| 495 | + if ($carries_password) { | |
| 496 | + Metasync_Settings_Registration::authorize_recovery_password_write(false); | |
| 497 | + Metasync_Admin_Ajax::instance()->release_recovery_lock($import_lock_owner); | |
| 498 | + } | |
| 499 | + } | |
| 500 | + if (get_option('metasync_options', null) !== $options) { | |
| 501 | + if (self::atomically_replace_plugin_file($plugin_file, $original_plugin_content)) { | |
| 502 | + wp_cache_delete('plugins', 'plugins'); | |
| 503 | + } | |
| 504 | + self::$last_import_error = 'options_write_failed'; | |
| 505 | + return false; | |
| 506 | + } | |
| 327 | 507 | |
| 328 | - // Update the plugin file headers so whitelabel shows even when deactivated | |
| 329 | - self::update_plugin_file_headers($import_data); | |
| 330 | - | |
| 331 | 508 | // Optionally delete the JSON file after successful import (uncomment if desired) |
| 332 | 509 | // unlink($json_file); |
| 510 | + | |
| 511 | + return true; | |
| 333 | 512 | } |
| 334 | 513 | |
| 335 | 514 | /** |
| 515 | + * Check runtime class compatibility without letting static analysis fold it. | |
| 516 | + * | |
| 517 | + * @param string $class_name Class name loaded in the current request. | |
| 518 | + * @param string[] $methods Required method names. | |
| 519 | + * @return bool | |
| 520 | + */ | |
| 521 | + private static function class_supports_methods($class_name, $methods) | |
| 522 | + { | |
| 523 | + foreach ($methods as $method) { | |
| 524 | + if (!method_exists($class_name, $method)) { | |
| 525 | + return false; | |
| 526 | + } | |
| 527 | + } | |
| 528 | + | |
| 529 | + return true; | |
| 530 | + } | |
| 531 | + | |
| 532 | + /** | |
| 336 | 533 | * Sync plugin file headers from the current saved options in the database. |
| 337 | 534 | * Call this after saving whitelabel settings via the admin UI to ensure |
| 338 | 535 | * the plugin file headers reflect the latest whitelabel values. |
| 339 | 536 | * |
| @@ -340,8 +537,12 @@ | ||
| 340 | 537 | * @since 2.5.0 |
| 341 | 538 | */ |
| 342 | 539 | public static function sync_plugin_file_headers() |
| 343 | 540 | { |
| 541 | + if (!current_user_can('manage_options')) { | |
| 542 | + return false; | |
| 543 | + } | |
| 544 | + | |
| 344 | 545 | $options = get_option('metasync_options', array()); |
| 345 | 546 | $general = $options['general'] ?? array(); |
| 346 | 547 | |
| 347 | 548 | // Build the import_data format expected by update_plugin_file_headers |
| @@ -348,9 +549,9 @@ | ||
| 348 | 549 | $import_data = array( |
| 349 | 550 | 'general_settings' => $general, |
| 350 | 551 | ); |
| 351 | 552 | |
| 352 | - self::update_plugin_file_headers($import_data); | |
| 553 | + return self::update_plugin_file_headers($import_data); | |
| 353 | 554 | } |
| 354 | 555 | |
| 355 | 556 | /** |
| 356 | 557 | * Update the main plugin file headers with whitelabel values |
| @@ -359,19 +560,19 @@ | ||
| 359 | 560 | * |
| 360 | 561 | * @param array $import_data The imported whitelabel data |
| 361 | 562 | * @since 2.5.0 |
| 362 | 563 | */ |
| 363 | - private static function update_plugin_file_headers($import_data) | |
| 564 | + private static function update_plugin_file_headers($import_data, $plugin_file = null) | |
| 364 | 565 | { |
| 365 | - $plugin_file = plugin_dir_path(dirname(__FILE__)) . 'metasync.php'; | |
| 566 | + $plugin_file = $plugin_file ?: plugin_dir_path(dirname(__FILE__)) . 'metasync.php'; | |
| 366 | 567 | |
| 367 | - if (!file_exists($plugin_file) || !is_writable($plugin_file)) { | |
| 368 | - return; | |
| 568 | + if (!file_exists($plugin_file) || !wp_is_writable($plugin_file)) { | |
| 569 | + return false; | |
| 369 | 570 | } |
| 370 | 571 | |
| 371 | 572 | $content = file_get_contents($plugin_file); |
| 372 | 573 | if ($content === false) { |
| 373 | - return; | |
| 574 | + return false; | |
| 374 | 575 | } |
| 375 | 576 | |
| 376 | 577 | $general = $import_data['general_settings'] ?? array(); |
| 377 | 578 | |
| @@ -379,9 +580,9 @@ | ||
| 379 | 580 | // with default values to restore when whitelabel is cleared |
| 380 | 581 | $header_map = array( |
| 381 | 582 | 'white_label_plugin_name' => array( |
| 382 | 583 | 'header' => 'Plugin Name', |
| 383 | - 'default' => 'Search Atlas: The Premier AI SEO Plugin for Instant Optimization', | |
| 584 | + 'default' => 'Search Atlas SEO - OTTO AI SEO Automation for WordPress', | |
| 384 | 585 | ), |
| 385 | 586 | 'white_label_plugin_description' => array( |
| 386 | 587 | 'header' => 'Description', |
| 387 | 588 | 'default' => 'Search Atlas SEO is an intuitive WordPress Plugin that transforms the most complicated, most labor-intensive SEO tasks into streamlined, straightforward processes. With a few clicks, the meta-bulk update feature automates the re-optimization of meta tags using AI to increase clicks. Stay up-to-date with the freshest Google Search data for your entire site or targeted URLs within the Meta Sync plug-in page.', |
| @@ -400,8 +601,10 @@ | ||
| 400 | 601 | ), |
| 401 | 602 | ); |
| 402 | 603 | |
| 403 | 604 | $modified = false; |
| 605 | + $original_content = $content; | |
| 606 | + $url_fields = array('white_label_plugin_author_uri', 'white_label_plugin_uri'); | |
| 404 | 607 | |
| 405 | 608 | foreach ($header_map as $setting_key => $field_config) { |
| 406 | 609 | $header_field = $field_config['header']; |
| 407 | 610 | |
| @@ -409,27 +612,150 @@ | ||
| 409 | 612 | $new_value = !empty($general[$setting_key]) |
| 410 | 613 | ? $general[$setting_key] |
| 411 | 614 | : $field_config['default']; |
| 412 | 615 | |
| 616 | + if (!is_string($new_value) || !self::is_valid_plugin_header_value($new_value, in_array($setting_key, $url_fields, true))) { | |
| 617 | + return false; | |
| 618 | + } | |
| 619 | + | |
| 413 | 620 | // Match the header line: " * Field Name: any value" |
| 414 | 621 | // Handles varying whitespace between field name and value |
| 415 | 622 | $pattern = '/^(\s*\*\s*' . preg_quote($header_field, '/') . ':\s*)(.+)$/m'; |
| 416 | 623 | |
| 417 | - if (preg_match($pattern, $content, $matches)) { | |
| 418 | - // Only replace if the value actually differs from what's in the file | |
| 419 | - if (trim($matches[2]) !== trim($new_value)) { | |
| 420 | - // Escape both backslashes and $ signs for preg_replace replacement string | |
| 421 | - $escaped_value = str_replace(array('\\', '$'), array('\\\\', '\\$'), $new_value); | |
| 422 | - $content = preg_replace($pattern, '${1}' . $escaped_value, $content, 1); | |
| 423 | - $modified = true; | |
| 624 | + if (preg_match_all($pattern, $content, $matches) !== 1) { | |
| 625 | + return false; | |
| 626 | + } | |
| 627 | + | |
| 628 | + // Only replace if the value actually differs from what's in the file. | |
| 629 | + if (trim($matches[2][0]) !== trim($new_value)) { | |
| 630 | + $content = preg_replace_callback( | |
| 631 | + $pattern, | |
| 632 | + static function ($match) use ($new_value) { | |
| 633 | + return $match[1] . $new_value; | |
| 634 | + }, | |
| 635 | + $content, | |
| 636 | + 1, | |
| 637 | + $replacement_count | |
| 638 | + ); | |
| 639 | + | |
| 640 | + if (!is_string($content) || $replacement_count !== 1) { | |
| 641 | + return false; | |
| 424 | 642 | } |
| 643 | + $modified = true; | |
| 425 | 644 | } |
| 426 | 645 | } |
| 427 | 646 | |
| 428 | - if ($modified) { | |
| 429 | - file_put_contents($plugin_file, $content); | |
| 647 | + if (!self::is_valid_transformed_plugin_file($original_content, $content, $header_map)) { | |
| 648 | + return false; | |
| 649 | + } | |
| 430 | 650 | |
| 431 | - // Clear WordPress plugin cache so it reads the updated headers | |
| 432 | - wp_cache_delete('plugins', 'plugins'); | |
| 651 | + if (!$modified) { | |
| 652 | + return true; | |
| 433 | 653 | } |
| 654 | + | |
| 655 | + if (!self::atomically_replace_plugin_file($plugin_file, $content)) { | |
| 656 | + return false; | |
| 657 | + } | |
| 658 | + | |
| 659 | + // Clear WordPress plugin cache so it reads the updated headers. | |
| 660 | + wp_cache_delete('plugins', 'plugins'); | |
| 661 | + | |
| 662 | + return true; | |
| 663 | + } | |
| 664 | + | |
| 665 | + /** | |
| 666 | + * Validate a value before placing it inside the plugin's PHP docblock. | |
| 667 | + */ | |
| 668 | + private static function is_valid_plugin_header_value($value, $is_url) | |
| 669 | + { | |
| 670 | + if ( | |
| 671 | + $value === '' | |
| 672 | + || preg_match('/^[\p{L}\p{M}\p{N}\p{P}\p{S}\p{Zs}]+$/u', $value) !== 1 | |
| 673 | + || preg_match('/\*\/|<\?php|\?>/i', $value) !== 0 | |
| 674 | + ) { | |
| 675 | + return false; | |
| 676 | + } | |
| 677 | + | |
| 678 | + if (!$is_url) { | |
| 679 | + return true; | |
| 680 | + } | |
| 681 | + | |
| 682 | + if (filter_var($value, FILTER_VALIDATE_URL) === false) { | |
| 683 | + return false; | |
| 684 | + } | |
| 685 | + | |
| 686 | + $scheme = strtolower((string) wp_parse_url($value, PHP_URL_SCHEME)); | |
| 687 | + | |
| 688 | + return in_array($scheme, array('http', 'https'), true); | |
| 689 | + } | |
| 690 | + | |
| 691 | + /** | |
| 692 | + * Validate the complete transformed PHP file and its header structure. | |
| 693 | + */ | |
| 694 | + private static function is_valid_transformed_plugin_file($original, $transformed, $header_map) | |
| 695 | + { | |
| 696 | + if (!is_string($transformed) || strpos($transformed, '<?php') !== 0) { | |
| 697 | + return false; | |
| 698 | + } | |
| 699 | + | |
| 700 | + if ( | |
| 701 | + substr_count($original, '<?php') !== substr_count($transformed, '<?php') | |
| 702 | + || substr_count($original, '?>') !== substr_count($transformed, '?>') | |
| 703 | + ) { | |
| 704 | + return false; | |
| 705 | + } | |
| 706 | + | |
| 707 | + foreach ($header_map as $field_config) { | |
| 708 | + $pattern = '/^\s*\*\s*' . preg_quote($field_config['header'], '/') . ':\s*.+$/m'; | |
| 709 | + if (preg_match_all($pattern, $transformed) !== 1) { | |
| 710 | + return false; | |
| 711 | + } | |
| 712 | + } | |
| 713 | + | |
| 714 | + try { | |
| 715 | + $tokens = token_get_all($transformed, TOKEN_PARSE); | |
| 716 | + } catch (ParseError $error) { | |
| 717 | + return false; | |
| 718 | + } | |
| 719 | + | |
| 720 | + return true; | |
| 721 | + } | |
| 722 | + | |
| 723 | + /** | |
| 724 | + * Replace a plugin file from a same-directory temporary file. | |
| 725 | + */ | |
| 726 | + private static function atomically_replace_plugin_file($plugin_file, $content, $rename_file = null) | |
| 727 | + { | |
| 728 | + $directory = dirname($plugin_file); | |
| 729 | + $temp_file = tempnam($directory, '.metasync-header-'); | |
| 730 | + if ($temp_file === false) { | |
| 731 | + return false; | |
| 732 | + } | |
| 733 | + | |
| 734 | + $permissions = fileperms($plugin_file); | |
| 735 | + $written = file_put_contents($temp_file, $content, LOCK_EX); | |
| 736 | + if ($written !== strlen($content)) { | |
| 737 | + @wp_delete_file($temp_file); | |
| 738 | + return false; | |
| 739 | + } | |
| 740 | + | |
| 741 | + if ($permissions !== false) { | |
| 742 | + @chmod($temp_file, $permissions & 0777); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_chmod -- direct POSIX permission change; WP_Filesystem would prompt for FTP credentials on non-direct hosts | |
| 743 | + } | |
| 744 | + | |
| 745 | + if ($rename_file === null) { | |
| 746 | + $rename_file = static function ($source, $destination) { | |
| 747 | + return @rename($source, $destination); // phpcs:ignore WordPress.WP.AlternativeFunctions.rename_rename -- atomic same-filesystem replace; WP_Filesystem::move() needs credential bootstrapping on non-direct hosts | |
| 748 | + }; | |
| 749 | + } | |
| 750 | + | |
| 751 | + // The temporary file is on the same filesystem, so a successful rename is | |
| 752 | + // atomic. On failure the original path has not been touched. | |
| 753 | + if ($rename_file($temp_file, $plugin_file)) { | |
| 754 | + return true; | |
| 755 | + } | |
| 756 | + | |
| 757 | + @wp_delete_file($temp_file); | |
| 758 | + | |
| 759 | + return false; | |
| 434 | 760 | } |
| 435 | 761 | } |
