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| 1 | <?php |
| 2 | /** |
| 3 | * SQL_Postprocessor file. |
| 4 | * |
| 5 | * @package wpcomsh |
| 6 | */ |
| 7 | |
| 8 | // This class performs multiple low-level operations on the database. |
| 9 | |
| 10 | // phpcs:disable phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery |
| 11 | // phpcs:disable WordPress.DB.DirectDatabaseQuery.NoCaching |
| 12 | // phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery |
| 13 | // phpcs:disable WordPress.DB.PreparedSQL.NotPrepared |
| 14 | // phpcs:disable WordPress.DB.DirectDatabaseQuery.SchemaChange |
| 15 | |
| 16 | namespace Imports; |
| 17 | |
| 18 | require_once __DIR__ . '/../class-backup-import-action.php'; |
| 19 | |
| 20 | use Automattic\Jetpack\Connection\Manager as Connection_Manager; |
| 21 | |
| 22 | /** |
| 23 | * Postprocess a SQL database. |
| 24 | */ |
| 25 | class SQL_Postprocessor extends \Imports\Backup_Import_Action { |
| 26 | const PLAYGROUND_SCOPED_URL = 'https://playground.wordpress.net/scope:'; |
| 27 | |
| 28 | /** |
| 29 | * The home URL. |
| 30 | * |
| 31 | * @var string |
| 32 | */ |
| 33 | private string $home_url; |
| 34 | |
| 35 | /** |
| 36 | * The site URL. |
| 37 | * |
| 38 | * @var string |
| 39 | */ |
| 40 | private string $site_url; |
| 41 | |
| 42 | /** |
| 43 | * The table temporary prefix. |
| 44 | * |
| 45 | * @var string |
| 46 | */ |
| 47 | private string $tmp_prefix; |
| 48 | |
| 49 | /** |
| 50 | * Whether to run the command in dry run mode. |
| 51 | * |
| 52 | * @var bool |
| 53 | */ |
| 54 | private bool $dry_run; |
| 55 | |
| 56 | /** |
| 57 | * SQL_Postprocessor constructor. |
| 58 | * |
| 59 | * @param string $home_url The home URL. |
| 60 | * @param string $site_url The site URL. |
| 61 | * @param string $tmp_prefix The table temporary prefix. |
| 62 | * @param bool $dry_run Whether to run the command in dry run mode. |
| 63 | * @param null|Utils\Logger\FileLogger $logger An optional logger for logging operations. |
| 64 | */ |
| 65 | public function __construct( string $home_url, string $site_url, string $tmp_prefix, $dry_run = true, $logger = null ) { |
| 66 | parent::__construct( $logger ); |
| 67 | $this->home_url = $home_url; |
| 68 | $this->site_url = $site_url; |
| 69 | $this->tmp_prefix = $tmp_prefix; |
| 70 | $this->dry_run = $dry_run; |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Postprocess the database after importing. |
| 75 | * |
| 76 | * @return bool|\WP_Error |
| 77 | */ |
| 78 | public function postprocess() { |
| 79 | global $wpdb; |
| 80 | |
| 81 | // 1. Replace the URLs. |
| 82 | $ret = $this->replace_urls(); |
| 83 | |
| 84 | if ( is_wp_error( $ret ) ) { |
| 85 | return $ret; |
| 86 | } |
| 87 | |
| 88 | // 2. Preserve a whitelist of options. |
| 89 | $ret = $this->save_whitelist_options(); |
| 90 | |
| 91 | if ( is_wp_error( $ret ) ) { |
| 92 | return $ret; |
| 93 | } |
| 94 | |
| 95 | // 3. Remove a list of options. |
| 96 | $ret = $this->remove_options(); |
| 97 | |
| 98 | if ( is_wp_error( $ret ) ) { |
| 99 | return $ret; |
| 100 | } |
| 101 | |
| 102 | // 4. Merge plugins. |
| 103 | $ret = $this->merge_plugins(); |
| 104 | |
| 105 | if ( is_wp_error( $ret ) ) { |
| 106 | return $ret; |
| 107 | } |
| 108 | |
| 109 | // 5. Replace temporary users. |
| 110 | $ret = $this->replace_users(); |
| 111 | |
| 112 | if ( is_wp_error( $ret ) ) { |
| 113 | return $ret; |
| 114 | } |
| 115 | |
| 116 | // Query used to replace the tables. |
| 117 | // We do not replace the users and usermeta tables. |
| 118 | $exclude_list = array( $wpdb->prefix . 'users', $wpdb->prefix . 'usermeta' ); |
| 119 | $replace_query = $this->get_tables_replace_query( $exclude_list ); |
| 120 | |
| 121 | if ( ! is_array( $replace_query ) ) { |
| 122 | return $replace_query; |
| 123 | } |
| 124 | |
| 125 | if ( ! $this->dry_run ) { |
| 126 | $this->log( 'Replace tables' ); |
| 127 | |
| 128 | // 6. Replace tables with temporary ones. |
| 129 | foreach ( $replace_query as $query ) { |
| 130 | $wpdb->query( $query ); |
| 131 | } |
| 132 | |
| 133 | // Flush the cache. This is needed to have fresh data. |
| 134 | wp_cache_flush(); |
| 135 | } |
| 136 | |
| 137 | return true; |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * Postprocess the database after importing. |
| 142 | * |
| 143 | * @return bool|\WP_Error |
| 144 | */ |
| 145 | public function replace_urls() { |
| 146 | global $wpdb; |
| 147 | |
| 148 | $this->log( 'Replace URLs' ); |
| 149 | |
| 150 | if ( ! wp_http_validate_url( $this->home_url ) ) { |
| 151 | return $this->error( 'invalid-home-url', __( 'The home URL is not valid.', 'wpcomsh' ) ); |
| 152 | } |
| 153 | |
| 154 | if ( ! wp_http_validate_url( $this->site_url ) ) { |
| 155 | return $this->error( 'invalid-site-url', __( 'The site URL is not valid.', 'wpcomsh' ) ); |
| 156 | } |
| 157 | |
| 158 | // Get the options from Playground database. |
| 159 | $tmp_options = $this->tmp_table_name( 'options' ); |
| 160 | $query = "SELECT option_value FROM {$tmp_options} WHERE option_name = '%s'"; |
| 161 | $prev_siteurl = $wpdb->get_var( sprintf( $query, 'siteurl' ) ); |
| 162 | |
| 163 | if ( $prev_siteurl === null ) { |
| 164 | return $this->error( 'missing-siteurl', __( 'Missing site URL.', 'wpcomsh' ) ); |
| 165 | } |
| 166 | |
| 167 | // 1. Replace the URLs. |
| 168 | $this->log( "Replace siteurl '{$prev_siteurl}' with '{$this->site_url}'" ); |
| 169 | $this->search_replace( $prev_siteurl, esc_url_raw( $this->site_url ), $this->tmp_prefix . '*' ); |
| 170 | |
| 171 | $prev_home = $wpdb->get_var( sprintf( $query, 'home' ) ); |
| 172 | |
| 173 | if ( $prev_home === null ) { |
| 174 | return $this->error( 'missing-home', __( 'Missing home URL.', 'wpcomsh' ) ); |
| 175 | } |
| 176 | |
| 177 | if ( $prev_home !== $prev_siteurl ) { |
| 178 | // 2. Replace the (home) URLs. |
| 179 | $this->log( "Replace home '{$prev_home}' with '{$this->home_url}'" ); |
| 180 | $this->search_replace( $prev_home, esc_url_raw( $this->home_url ), $this->tmp_prefix . '*' ); |
| 181 | } |
| 182 | |
| 183 | $app_scope = $this->get_app_scope(); |
| 184 | |
| 185 | if ( $app_scope !== null ) { |
| 186 | $scope = self::PLAYGROUND_SCOPED_URL . $app_scope; |
| 187 | // 3. Replace the app scope. |
| 188 | $this->log( "Replace app scope '{$scope}' with '{$this->site_url}'" ); |
| 189 | $this->search_replace( $scope, esc_url_raw( $this->site_url ), $this->tmp_prefix . '*' ); |
| 190 | } |
| 191 | |
| 192 | return true; |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * Save a whitelist of options in temporary tables. |
| 197 | * |
| 198 | * @return bool|\WP_Error |
| 199 | */ |
| 200 | public function save_whitelist_options() { |
| 201 | global $wpdb; |
| 202 | |
| 203 | // A list of options to save. |
| 204 | $whitelist = array( |
| 205 | 'admin_email', |
| 206 | 'jetpack_active_modules', |
| 207 | 'jetpack_options', |
| 208 | 'jetpack_private_options', |
| 209 | 'permalink_structure', |
| 210 | 'db_version', |
| 211 | ); |
| 212 | |
| 213 | // Substitute the options. |
| 214 | $tmp_options = $this->tmp_table_name( 'options' ); |
| 215 | $options = implode( "', '", $whitelist ); |
| 216 | $query = "SELECT option_name, option_value FROM %s WHERE option_name IN ('{$options}')"; |
| 217 | $options = $wpdb->get_results( sprintf( $query, $wpdb->prefix . 'options' ), ARRAY_A ); |
| 218 | |
| 219 | if ( ! count( $options ) ) { |
| 220 | $this->log( 'No whitelist options' ); |
| 221 | |
| 222 | return false; |
| 223 | } |
| 224 | |
| 225 | $inserted = 0; |
| 226 | |
| 227 | foreach ( $options as $option ) { |
| 228 | $this->log( 'Save ' . $option['option_name'] ); |
| 229 | |
| 230 | // Replace the option. |
| 231 | $last_insert_id = $wpdb->replace( |
| 232 | $tmp_options, |
| 233 | array( |
| 234 | 'option_name' => $option['option_name'], |
| 235 | 'option_value' => $option['option_value'], |
| 236 | ), |
| 237 | array( '%s', '%s' ) |
| 238 | ); |
| 239 | |
| 240 | if ( $last_insert_id !== false ) { |
| 241 | ++$inserted; |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | if ( $inserted > 0 ) { |
| 246 | $this->log( 'Whitelist options saved' ); |
| 247 | |
| 248 | return true; |
| 249 | } else { |
| 250 | return $this->error( 'error-save-whitelist-option', __( 'Error saving whitelist options.', 'wpcomsh' ) ); |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | /** |
| 255 | * Remove a list of options. |
| 256 | */ |
| 257 | public function remove_options() { |
| 258 | global $wpdb; |
| 259 | |
| 260 | // A list of options to remove. |
| 261 | $remove = array( |
| 262 | 'new_admin_email', // This option is saved by default in Playground, not needed. |
| 263 | ); |
| 264 | |
| 265 | // Substitute the options. |
| 266 | $tmp_options = $this->tmp_table_name( 'options' ); |
| 267 | $options = implode( "', '", $remove ); |
| 268 | $query = "DELETE FROM %s WHERE option_name IN ('{$options}')"; |
| 269 | $deleted = $wpdb->query( sprintf( $query, $tmp_options ) ); |
| 270 | |
| 271 | $this->log( 'Options removed: ' . (int) $deleted ); |
| 272 | |
| 273 | return true; |
| 274 | } |
| 275 | |
| 276 | /** |
| 277 | * Replace the users. |
| 278 | * |
| 279 | * @return bool|\WP_Error |
| 280 | */ |
| 281 | public function replace_users() { |
| 282 | global $wpdb; |
| 283 | |
| 284 | $this->log( 'Replace users' ); |
| 285 | |
| 286 | if ( ! class_exists( '\Automattic\Jetpack\Connection\Manager' ) ) { |
| 287 | // Jetpack is not installed. |
| 288 | return $this->error( 'jetpack-not-installed', __( 'Jetpack is not installed.', 'wpcomsh' ) ); |
| 289 | } |
| 290 | |
| 291 | $manager = new Connection_Manager( 'jetpack' ); |
| 292 | $owner_id = $manager->get_connection_owner_id(); |
| 293 | |
| 294 | if ( $owner_id === false ) { |
| 295 | // The site is not connected. |
| 296 | return $this->error( 'site-not-connected', __( 'The site is not connected.', 'wpcomsh' ) ); |
| 297 | } |
| 298 | |
| 299 | // Remap all posts. |
| 300 | $posts_table = $this->tmp_table_name( 'posts' ); |
| 301 | $changed = $wpdb->query( $wpdb->prepare( 'UPDATE ' . $posts_table . ' SET post_author=%d', $owner_id ) ); |
| 302 | |
| 303 | if ( $changed === false ) { |
| 304 | return $this->error( 'error-update-posts', __( 'Error update posts.', 'wpcomsh' ) ); |
| 305 | } else { |
| 306 | $this->log( 'Posts updated: ' . $changed ); |
| 307 | } |
| 308 | |
| 309 | // Remap all links. |
| 310 | $links_table = $this->tmp_table_name( 'links' ); |
| 311 | $changed = $wpdb->query( $wpdb->prepare( 'UPDATE ' . $links_table . ' SET link_owner=%d', $owner_id ) ); |
| 312 | |
| 313 | if ( $changed === false ) { |
| 314 | return $this->error( 'error-update-links', __( 'Error update links.', 'wpcomsh' ) ); |
| 315 | } else { |
| 316 | $this->log( 'Links updated: ' . $changed ); |
| 317 | } |
| 318 | |
| 319 | return true; |
| 320 | } |
| 321 | |
| 322 | /** |
| 323 | * Merge the plugins. |
| 324 | * |
| 325 | * @return bool |
| 326 | */ |
| 327 | public function merge_plugins(): bool { |
| 328 | global $wpdb; |
| 329 | |
| 330 | $tmp_options = $this->tmp_table_name( 'options' ); |
| 331 | $query = "SELECT option_value FROM {$tmp_options} WHERE option_name = 'active_plugins'"; |
| 332 | |
| 333 | // Get the active plugins and the temporary ones. |
| 334 | $active_plugins = (array) get_option( 'active_plugins', array() ); |
| 335 | $tmp_active_plugins = $wpdb->get_var( $query ); |
| 336 | |
| 337 | if ( ! empty( $tmp_active_plugins ) ) { |
| 338 | $tmp_active_plugins = maybe_unserialize( $tmp_active_plugins ); |
| 339 | |
| 340 | if ( is_array( $tmp_active_plugins ) ) { |
| 341 | // Playground has some incompatible plugins installed by default. |
| 342 | $incompatible_plugins = array( |
| 343 | 'sqlite-database-integration/load.php', |
| 344 | 'wordpress-importer/wordpress-importer.php', |
| 345 | ); |
| 346 | |
| 347 | // Remove the incompatible plugins. |
| 348 | $tmp_active_plugins = array_diff( $tmp_active_plugins, $incompatible_plugins ); |
| 349 | |
| 350 | // Merge the plugins. |
| 351 | $active_plugins = array_merge( $active_plugins, $tmp_active_plugins ); |
| 352 | $active_plugins = array_unique( $active_plugins ); |
| 353 | } |
| 354 | } |
| 355 | |
| 356 | $new_option = array( 'option_value' => maybe_serialize( $active_plugins ) ); |
| 357 | $result = $wpdb->update( $tmp_options, $new_option, array( 'option_name' => 'active_plugins' ) ); |
| 358 | |
| 359 | return $result !== false; |
| 360 | } |
| 361 | |
| 362 | /** |
| 363 | * Get the replace table SQL query. |
| 364 | * |
| 365 | * @param array $exclude The tables to exclude. |
| 366 | * |
| 367 | * @return array|\WP_Error |
| 368 | */ |
| 369 | public function get_tables_replace_query( $exclude = array() ) { |
| 370 | global $wpdb; |
| 371 | |
| 372 | $this->log( 'Generate replace query' ); |
| 373 | |
| 374 | // Can't change the prefix if it's not different. |
| 375 | if ( $this->tmp_prefix === $wpdb->prefix ) { |
| 376 | return $this->error( 'invalid-prefix', __( 'Temporary prefix is equals to current prefix.', 'wpcomsh' ) ); |
| 377 | } |
| 378 | |
| 379 | $results = $wpdb->get_results( $wpdb->prepare( 'SHOW TABLES LIKE %s', $wpdb->esc_like( $this->tmp_prefix ) . '%' ), ARRAY_N ); |
| 380 | |
| 381 | // Check if the temporary tables exist. |
| 382 | if ( null === $results || ( is_array( $results ) && ! count( $results ) ) ) { |
| 383 | return $this->error( 'missing-tables', __( 'Missing temporary tables.', 'wpcomsh' ) ); |
| 384 | } |
| 385 | |
| 386 | $prefix_len = strlen( $this->tmp_prefix ); |
| 387 | $tmp_tables = array(); |
| 388 | $tables = array(); |
| 389 | $renames = array(); |
| 390 | |
| 391 | // Build the list of tables to rename, from tmp_wp_* to wp_*. |
| 392 | foreach ( $results as $result ) { |
| 393 | $from = $result[0]; |
| 394 | $to = substr( $result[0], $prefix_len ); |
| 395 | |
| 396 | // Save the temporary tables to drop them later. |
| 397 | $tmp_tables[] = $from; |
| 398 | |
| 399 | // Skip the tables to exclude. |
| 400 | if ( in_array( $to, $exclude, true ) ) { |
| 401 | continue; |
| 402 | } |
| 403 | |
| 404 | $tables[] = $to; |
| 405 | $renames[] = $from . ' TO ' . $to; // The string 'tmp_wp_table TO wp_table' |
| 406 | } |
| 407 | |
| 408 | // Drop production wp_* tables. |
| 409 | // Rename temporary tables tmp_wp_* with wp_*. |
| 410 | // Drop tmp_* temporary tables. |
| 411 | $ret = array( 'START TRANSACTION' ); |
| 412 | |
| 413 | if ( count( $tables ) ) { |
| 414 | $ret[] = 'DROP TABLE IF EXISTS ' . implode( ', ', $tables ); |
| 415 | } |
| 416 | |
| 417 | if ( count( $renames ) ) { |
| 418 | $ret[] = 'RENAME TABLE ' . implode( ', ', $renames ); |
| 419 | } |
| 420 | |
| 421 | if ( count( $tmp_tables ) ) { |
| 422 | $ret[] = 'DROP TABLE IF EXISTS ' . implode( ', ', $tmp_tables ); |
| 423 | } |
| 424 | |
| 425 | $ret[] = 'COMMIT'; |
| 426 | |
| 427 | return $ret; |
| 428 | } |
| 429 | |
| 430 | /** |
| 431 | * Search and replace a string in the database. |
| 432 | * |
| 433 | * @param string $search The string to search. |
| 434 | * @param string $replace The string to replace. |
| 435 | * @param string $tables The tables to search and replace. |
| 436 | * @param bool $dry_run Whether to run the command in dry run mode. |
| 437 | * |
| 438 | * @return mixed |
| 439 | */ |
| 440 | public function search_replace( string $search, string $replace, string $tables, bool $dry_run = false ) { |
| 441 | $replace_query = 'search-replace \'%s\' \'%s\' \'%s\' %s'; |
| 442 | $options = array( |
| 443 | '--all-tables', |
| 444 | '--precise', |
| 445 | '--no-report', |
| 446 | '--format=count', |
| 447 | ); |
| 448 | |
| 449 | if ( $dry_run ) { |
| 450 | $options[] = '--dry-run'; |
| 451 | } |
| 452 | |
| 453 | $options = implode( ' ', $options ); |
| 454 | $command = sprintf( |
| 455 | $replace_query, |
| 456 | $search, |
| 457 | $replace, |
| 458 | $tables, |
| 459 | $options |
| 460 | ); |
| 461 | |
| 462 | // Replace the site URL. |
| 463 | return $this->run_command( $command, array( 'return' => true ) ); |
| 464 | } |
| 465 | |
| 466 | /** |
| 467 | * Run a WP-CLI command. |
| 468 | * |
| 469 | * @param string $command The command to run. |
| 470 | * @param array $args The arguments to pass to the command. |
| 471 | * |
| 472 | * @return mixed |
| 473 | */ |
| 474 | public function run_command( $command, $args = array() ) { |
| 475 | if ( class_exists( 'WP_CLI' ) ) { |
| 476 | return \WP_CLI::runcommand( $command, $args ); |
| 477 | } |
| 478 | |
| 479 | return false; |
| 480 | } |
| 481 | |
| 482 | /** |
| 483 | * Get the temporary table name. |
| 484 | * |
| 485 | * @param string $table_name The table name. |
| 486 | * |
| 487 | * @return string |
| 488 | */ |
| 489 | public function tmp_table_name( string $table_name ): string { |
| 490 | global $wpdb; |
| 491 | |
| 492 | return $this->tmp_prefix . $wpdb->prefix . $table_name; |
| 493 | } |
| 494 | |
| 495 | /** |
| 496 | * Get the app scope. |
| 497 | * |
| 498 | * The app scope is a guid like https://playground.wordpress.net/scope:app-scope. |
| 499 | * |
| 500 | * @see https://wordpress.github.io/wordpress-playground/architecture/browser-scopes/ |
| 501 | * |
| 502 | * @return null|string|\WP_Error |
| 503 | */ |
| 504 | public function get_app_scope() { |
| 505 | global $wpdb; |
| 506 | |
| 507 | // Get the first scoped URL from database, if any. |
| 508 | $tmp_posts = $this->tmp_table_name( 'posts' ); |
| 509 | // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 510 | $query = $wpdb->prepare( "SELECT guid FROM {$tmp_posts} WHERE guid LIKE %s LIMIT 1", self::PLAYGROUND_SCOPED_URL . '%' ); |
| 511 | $guid = $wpdb->get_var( $query ); |
| 512 | |
| 513 | if ( $guid === null ) { |
| 514 | // Nothing to replace. |
| 515 | return null; |
| 516 | } |
| 517 | |
| 518 | // See setURLScope function in playground.js. |
| 519 | return $this->get_url_scope( $guid ); |
| 520 | } |
| 521 | |
| 522 | /** |
| 523 | * Get the scope from a URL. |
| 524 | * |
| 525 | * @param string $url The URL. |
| 526 | * @param string $scope The scope. |
| 527 | * |
| 528 | * @return string|null |
| 529 | */ |
| 530 | public function get_url_scope( string $url, string $scope = self::PLAYGROUND_SCOPED_URL ): ?string { |
| 531 | // See setURLScope function in Playground. |
| 532 | $pattern = '/' . preg_quote( $scope, '/' ) . '([^\/]+)\/.*/'; |
| 533 | $matches = array(); |
| 534 | $ret = preg_match( $pattern, $url, $matches ); |
| 535 | |
| 536 | if ( $ret !== 1 || ! isset( $matches[1] ) ) { |
| 537 | return null; |
| 538 | } |
| 539 | |
| 540 | return $matches[1]; |
| 541 | } |
| 542 | } |
| 543 | |
| 544 | // phpcs:enable |