Cleaners
5 years ago
Exceptions
5 years ago
Cancel.php
3 years ago
CancelUpdate.php
4 years ago
Cloning.php
3 years ago
CloningProcess.php
3 years ago
Data.php
3 years ago
Database.php
3 years ago
Delete.php
3 years ago
Directories.php
3 years ago
Files.php
3 years ago
Finish.php
3 years ago
Job.php
3 years ago
JobExecutable.php
3 years ago
Logs.php
3 years ago
PreserveDataFirstStep.php
3 years ago
PreserveDataSecondStep.php
3 years ago
ProcessLock.php
3 years ago
Scan.php
3 years ago
SearchReplace.php
3 years ago
TotalStepsAreNumberOfTables.php
5 years ago
Updating.php
3 years ago
Verify.php
3 years ago
Delete.php
545 lines
| 1 | <?php |
| 2 | |
| 3 | namespace WPStaging\Backend\Modules\Jobs; |
| 4 | |
| 5 | use Exception; |
| 6 | use FilesystemIterator; |
| 7 | use mysqli; |
| 8 | use stdClass; |
| 9 | use wpdb; |
| 10 | use WPStaging\Backend\Modules\Jobs\Exceptions\CloneNotFoundException; |
| 11 | use WPStaging\Core\Utils\Logger; |
| 12 | use WPStaging\Core\WPStaging; |
| 13 | use WPStaging\Framework\Filesystem\Filesystem; |
| 14 | use WPStaging\Framework\Filesystem\FilesystemExceptions; |
| 15 | use WPStaging\Framework\Staging\Sites; |
| 16 | use WPStaging\Framework\Utils\Sanitize; |
| 17 | use WPStaging\Framework\Utils\Strings; |
| 18 | |
| 19 | /** |
| 20 | * Class Delete |
| 21 | * @package WPStaging\Backend\Modules\Jobs |
| 22 | */ |
| 23 | class Delete extends Job |
| 24 | { |
| 25 | |
| 26 | /** |
| 27 | * @var stdClass|false |
| 28 | */ |
| 29 | private $clone = false; |
| 30 | |
| 31 | /** |
| 32 | * The path to delete |
| 33 | * @var string |
| 34 | */ |
| 35 | private $deleteDir; |
| 36 | |
| 37 | /** |
| 38 | * @var null|object|array |
| 39 | */ |
| 40 | private $tables = null; |
| 41 | |
| 42 | /** |
| 43 | * @var object|null |
| 44 | */ |
| 45 | private $job = null; |
| 46 | |
| 47 | /** |
| 48 | * |
| 49 | * @var wpdb |
| 50 | */ |
| 51 | public $wpdb; |
| 52 | |
| 53 | /** |
| 54 | * |
| 55 | * @var bool |
| 56 | */ |
| 57 | private $isExternalDb; |
| 58 | |
| 59 | /** @var Strings */ |
| 60 | private $strings; |
| 61 | |
| 62 | /** @var Sanitize */ |
| 63 | private $sanitize; |
| 64 | |
| 65 | public function __construct($isExternal = false) |
| 66 | { |
| 67 | parent::__construct(); |
| 68 | |
| 69 | /** @var Sanitize */ |
| 70 | $this->sanitize = WPStaging::make(Sanitize::class); |
| 71 | $this->isExternalDb = $isExternal; |
| 72 | $this->deleteDir = !empty($_POST['deleteDir']) ? $this->sanitize->sanitizePath($_POST['deleteDir']) : ''; |
| 73 | $this->strings = new Strings(); |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Sets Clone and Table Records |
| 78 | * @param null|array $clone |
| 79 | * @return bool |
| 80 | */ |
| 81 | public function setData($clone = null) |
| 82 | { |
| 83 | if (!is_array($clone)) { |
| 84 | $this->getCloneRecords(); |
| 85 | } else { |
| 86 | $this->clone = (object)$clone; |
| 87 | } |
| 88 | |
| 89 | if (!$this->isExternalDatabase()) { |
| 90 | $this->wpdb = WPStaging::getInstance()->get("wpdb"); |
| 91 | $this->getTableRecords(); |
| 92 | return true; |
| 93 | } |
| 94 | |
| 95 | if ($this->isExternalDatabaseError()) { |
| 96 | return false; |
| 97 | } |
| 98 | |
| 99 | $this->wpdb = $this->getExternalStagingDb(); |
| 100 | $this->getTableRecords(); |
| 101 | return true; |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Get database object to interact with |
| 106 | */ |
| 107 | private function getExternalStagingDb() |
| 108 | { |
| 109 | if ($this->clone->databaseSsl && !defined('MYSQL_CLIENT_FLAGS')) { |
| 110 | // phpcs:disable PHPCompatibility.Constants.NewConstants.mysqli_client_ssl_dont_verify_server_certFound |
| 111 | define('MYSQL_CLIENT_FLAGS', MYSQLI_CLIENT_SSL | MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT); |
| 112 | } |
| 113 | |
| 114 | return new wpdb($this->clone->databaseUser, $this->clone->databasePassword, $this->clone->databaseDatabase, $this->clone->databaseServer); |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * Date database name |
| 119 | * @return string |
| 120 | */ |
| 121 | public function getDbName() |
| 122 | { |
| 123 | return $this->wpdb->dbname; |
| 124 | } |
| 125 | |
| 126 | /** |
| 127 | * Check if external database is used |
| 128 | * @return boolean |
| 129 | */ |
| 130 | protected function isExternalDatabase() |
| 131 | { |
| 132 | if ($this->isExternalDb) { |
| 133 | return true; |
| 134 | } |
| 135 | |
| 136 | if (!empty($this->clone->databaseUser) && !empty($this->clone->databasePassword) && !empty($this->clone->databaseDatabase) && !empty($this->clone->databaseServer)) { |
| 137 | return true; |
| 138 | } |
| 139 | |
| 140 | return false; |
| 141 | } |
| 142 | |
| 143 | /** |
| 144 | * Get clone |
| 145 | * @param null|string $name |
| 146 | */ |
| 147 | private function getCloneRecords($name = null) |
| 148 | { |
| 149 | if ($name === null && !isset($_POST["clone"])) { |
| 150 | $this->log("Clone name is not set", Logger::TYPE_FATAL); |
| 151 | $this->returnException("Clone name is not set"); |
| 152 | } |
| 153 | |
| 154 | if ($name === null) { |
| 155 | $name = $this->sanitize->sanitizeString($_POST["clone"]); |
| 156 | } |
| 157 | |
| 158 | $clones = get_option(Sites::STAGING_SITES_OPTION, []); |
| 159 | |
| 160 | if (empty($clones) || !isset($clones[$name])) { |
| 161 | $this->log("Couldn't find clone name $name or no existing clone", Logger::TYPE_FATAL); |
| 162 | $this->returnException("Couldn't find clone name $name or no existing clone"); |
| 163 | } |
| 164 | |
| 165 | $this->clone = $clones[$name]; |
| 166 | $this->clone["name"] = $name; |
| 167 | |
| 168 | $this->clone = (object)$this->clone; |
| 169 | |
| 170 | unset($clones); |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Get Tables |
| 175 | */ |
| 176 | private function getTableRecords() |
| 177 | { |
| 178 | |
| 179 | $stagingPrefix = $this->getStagingPrefix(); |
| 180 | |
| 181 | // Escape "_" to allow searching for that character |
| 182 | $prefix = $this->strings->replaceLastMatch('_', '\_', $stagingPrefix); |
| 183 | |
| 184 | if ($this->isExternalDatabase()) { // Show all tables if its an external database |
| 185 | $tables = $this->wpdb->get_results("SHOW TABLE STATUS"); |
| 186 | } else { |
| 187 | $tables = $this->wpdb->get_results("SHOW TABLE STATUS LIKE '$prefix%'"); |
| 188 | } |
| 189 | |
| 190 | |
| 191 | $this->tables = []; |
| 192 | |
| 193 | // no results |
| 194 | if ($tables !== null) { |
| 195 | foreach ($tables as $table) { |
| 196 | $this->tables[] = [ |
| 197 | "name" => $table->Name, |
| 198 | "size" => $this->utilsMath->formatSize($table->Data_length + $table->Index_length) |
| 199 | ]; |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | $this->tables = json_decode(json_encode($this->tables)); |
| 204 | } |
| 205 | |
| 206 | /** |
| 207 | * Check and return prefix of the staging site |
| 208 | */ |
| 209 | private function getStagingPrefix() |
| 210 | { |
| 211 | if ($this->isExternalDatabase() && !empty($this->clone->databasePrefix)) { |
| 212 | $this->clone->prefix = $this->clone->databasePrefix; |
| 213 | return $this->clone->databasePrefix; |
| 214 | } |
| 215 | |
| 216 | // Prefix not defined! Happens if staging site has been generated with older version of wpstg |
| 217 | // Try to get staging prefix from wp-config.php of staging site |
| 218 | if (empty($this->clone->prefix)) { |
| 219 | $path = ABSPATH . $this->clone->directoryName . "/wp-config.php"; |
| 220 | if (($content = @file_get_contents($path)) === false) { |
| 221 | $this->log("Can not open $path. Can't read contents", Logger::TYPE_ERROR); |
| 222 | } |
| 223 | |
| 224 | preg_match("/table_prefix\s*=\s*'(\w*)';/", $content, $matches); |
| 225 | |
| 226 | if (!empty($matches[1])) { |
| 227 | $this->clone->prefix = $matches[1]; |
| 228 | } else { |
| 229 | $this->returnException("Fatal Error: Can not delete staging site. Can not find Prefix. '$matches[1]'. Stopping for security reasons. Creating a new staging site will likely resolve this the next time. Contact support@wp-staging.com"); |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | if (empty($this->clone->prefix)) { |
| 234 | $this->returnException("Fatal Error: Can not delete staging site. Can not find table prefix. Contact support@wp-staging.com"); |
| 235 | } |
| 236 | |
| 237 | // Check if staging prefix is the same as the live prefix |
| 238 | if (empty($this->options->databaseUser) && $this->wpdb->prefix === $this->clone->prefix) { |
| 239 | $this->log("Fatal Error: Can not delete staging site. Prefix. '{$this->clone->prefix}' is used for the production site. Stopping for security reasons. Go to Sites > Actions > Edit Data and correct the table prefix or contact us."); |
| 240 | $this->returnException("Fatal Error: Can not delete staging site. Prefix. '{$this->clone->prefix}' is used for the production site. Stopping for security reasons. Go to Sites > Actions > Edit Data and correct the table prefix or contact us"); |
| 241 | } |
| 242 | |
| 243 | return $this->clone->prefix; |
| 244 | } |
| 245 | |
| 246 | /** |
| 247 | * @return false |
| 248 | */ |
| 249 | public function getClone() |
| 250 | { |
| 251 | return $this->clone; |
| 252 | } |
| 253 | |
| 254 | /** |
| 255 | * @return null|object |
| 256 | */ |
| 257 | public function getTables() |
| 258 | { |
| 259 | return $this->tables; |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * Start Module |
| 264 | * @param null|array $clone |
| 265 | * @return boolean |
| 266 | * @throws CloneNotFoundException |
| 267 | * @throws Exception |
| 268 | */ |
| 269 | public function start($clone = null) |
| 270 | { |
| 271 | // Set data |
| 272 | $this->setData($clone); |
| 273 | |
| 274 | // Get the job first |
| 275 | $this->getJob(); |
| 276 | |
| 277 | $method = "delete" . ucwords($this->job->current); |
| 278 | |
| 279 | if (method_exists($this, $method)) { |
| 280 | return $this->{$method}(); |
| 281 | } |
| 282 | |
| 283 | // If method doesn't exist probably the cache file was corrupted |
| 284 | // Just delete that corrupted cache file and restart itself. |
| 285 | $this->cache->delete($this->getJobCacheFileName()); |
| 286 | return $this->start($clone); |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * Get job data |
| 291 | * @throws Exception |
| 292 | */ |
| 293 | public function getJob() |
| 294 | { |
| 295 | $this->job = $this->cache->get($this->getJobCacheFileName()); |
| 296 | |
| 297 | |
| 298 | if ($this->job !== null && isset($this->job->current)) { |
| 299 | return; |
| 300 | } |
| 301 | |
| 302 | // Generate JOB |
| 303 | $this->job = (object)[ |
| 304 | "current" => "tables", |
| 305 | "nextDirectoryToDelete" => $this->clone->path, |
| 306 | "name" => $this->clone->name |
| 307 | ]; |
| 308 | |
| 309 | $this->cache->save($this->getJobCacheFileName(), $this->job); |
| 310 | } |
| 311 | |
| 312 | /** |
| 313 | * @return bool |
| 314 | * @throws Exception |
| 315 | */ |
| 316 | private function updateJob() |
| 317 | { |
| 318 | $this->job->nextDirectoryToDelete = trim($this->job->nextDirectoryToDelete); |
| 319 | return $this->cache->save($this->getJobCacheFileName(), $this->job); |
| 320 | } |
| 321 | |
| 322 | /** |
| 323 | * @return array |
| 324 | */ |
| 325 | private function getTablesToRemove() |
| 326 | { |
| 327 | $tables = $this->getTableNames(); |
| 328 | |
| 329 | if (!isset($_POST["excludedTables"]) || !is_array($_POST["excludedTables"]) || empty($_POST["excludedTables"])) { |
| 330 | return $tables; |
| 331 | } |
| 332 | |
| 333 | return array_diff($tables, $this->sanitize->sanitizeString($_POST["excludedTables"])); |
| 334 | } |
| 335 | |
| 336 | /** |
| 337 | * @return array |
| 338 | */ |
| 339 | private function getTableNames() |
| 340 | { |
| 341 | return (!is_array($this->tables)) ? [] : array_map(function ($value) { |
| 342 | return ($value->name); |
| 343 | }, $this->tables); |
| 344 | } |
| 345 | |
| 346 | /** |
| 347 | * Delete Tables |
| 348 | * |
| 349 | * @throws Exception |
| 350 | * @todo DRY the code by implementing through WPStaging\Framework\Database\TableService::deleteTablesStartWith |
| 351 | */ |
| 352 | public function deleteTables() |
| 353 | { |
| 354 | |
| 355 | if ($this->isOverThreshold()) { |
| 356 | $this->log("Deleting: Is over threshold"); |
| 357 | return; |
| 358 | } |
| 359 | |
| 360 | $tables = $this->getTablesToRemove(); |
| 361 | |
| 362 | foreach ($tables as $table) { |
| 363 | // PROTECTION: Never delete any table that begins with wp prefix of live site |
| 364 | if (!$this->isExternalDatabase() && $this->strings->startsWith($table, $this->wpdb->prefix)) { |
| 365 | $this->log("Fatal Error: Trying to delete table $table of main WP installation!", Logger::TYPE_CRITICAL); |
| 366 | } |
| 367 | |
| 368 | $this->wpdb->query("DROP TABLE $table"); |
| 369 | } |
| 370 | |
| 371 | // Move on to the next |
| 372 | $this->job->current = "directory"; |
| 373 | $this->updateJob(); |
| 374 | } |
| 375 | |
| 376 | /** |
| 377 | * Delete complete directory including all files and sub folders |
| 378 | * @throws Exception |
| 379 | */ |
| 380 | public function deleteDirectory() |
| 381 | { |
| 382 | if ($this->isFatalError()) { |
| 383 | $this->returnException('Can not delete directory: ' . $this->deleteDir . '. This seems to be the root directory. Exclude this directory from deleting and try again.'); |
| 384 | throw new Exception('Can not delete directory: ' . $this->deleteDir . ' This seems to be the root directory. Exclude this directory from deleting and try again.'); |
| 385 | } |
| 386 | |
| 387 | // Finished or path does not exist |
| 388 | if ( |
| 389 | empty($this->deleteDir) || |
| 390 | $this->deleteDir === get_home_path() || |
| 391 | !is_dir($this->deleteDir) |
| 392 | ) { |
| 393 | $this->job->current = "finish"; |
| 394 | $this->updateJob(); |
| 395 | $this->deleteFinish(); |
| 396 | return; |
| 397 | } |
| 398 | |
| 399 | $this->log("Delete staging site: " . $this->clone->path); |
| 400 | |
| 401 | // Make sure the root dir is never deleted! |
| 402 | if ($this->deleteDir === get_home_path()) { |
| 403 | $this->log("Fatal Error 8: Trying to delete root of WP installation!", Logger::TYPE_CRITICAL); |
| 404 | $this->returnException('Fatal Error 8: Trying to delete root of WP installation!'); |
| 405 | } |
| 406 | |
| 407 | // Check if threshold is reached |
| 408 | if ($this->isOverThreshold()) { |
| 409 | return; |
| 410 | } |
| 411 | |
| 412 | $clone = (string)$this->clone->path; |
| 413 | $errorMessage = sprintf(__('We could not delete the staging site completely. There are still files in the folder %s that could not be deleted. This could be a write permission issue. Try to delete the folder manually by using FTP or a file manager plugin.<br/> If this happens again please contact us at support@wp-staging.com', 'wp-staging'), $clone); |
| 414 | |
| 415 | $deleteStatus = "finished"; |
| 416 | if ($this->isNotEmpty($this->deleteDir)) { |
| 417 | $fs = (new Filesystem()) |
| 418 | ->setShouldStop([$this, 'isOverThreshold']) |
| 419 | ->shouldPermissionExceptionsBypass(true) |
| 420 | ->setRecursive(); |
| 421 | try { |
| 422 | if (!$fs->delete($this->deleteDir)) { |
| 423 | return; |
| 424 | } |
| 425 | } catch (FilesystemExceptions $ex) { |
| 426 | $errorMessage = $ex->getMessage(); |
| 427 | $deleteStatus = "unfinished"; |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | // Throw fatal error if the folder has still not been deleted and there are files in it |
| 432 | if ($this->isNotEmpty($this->deleteDir)) { |
| 433 | $response = [ |
| 434 | 'job' => 'delete', |
| 435 | 'status' => true, |
| 436 | 'delete' => $deleteStatus, |
| 437 | 'message' => $errorMessage, |
| 438 | 'error' => true, |
| 439 | ]; |
| 440 | wp_die(json_encode($response)); |
| 441 | } |
| 442 | |
| 443 | // Successful finish deleting job |
| 444 | $this->deleteFinish(); |
| 445 | } |
| 446 | |
| 447 | /** |
| 448 | * Check if directory exists and is not empty |
| 449 | * @param string $dir |
| 450 | * @return bool |
| 451 | */ |
| 452 | private function isNotEmpty($dir) |
| 453 | { |
| 454 | // Throw fatal error if the folder has still not been deleted and there are files in it |
| 455 | $isDirNotEmpty = false; |
| 456 | if (is_dir($dir)) { |
| 457 | $iterator = new FilesystemIterator($dir); |
| 458 | $isDirNotEmpty = $iterator->valid(); |
| 459 | } |
| 460 | |
| 461 | return $isDirNotEmpty; |
| 462 | } |
| 463 | |
| 464 | /** |
| 465 | * |
| 466 | * @return boolean |
| 467 | */ |
| 468 | public function isFatalError() |
| 469 | { |
| 470 | $homePath = rtrim(get_home_path(), "/"); |
| 471 | return $homePath === rtrim($this->deleteDir, "/"); |
| 472 | } |
| 473 | |
| 474 | /** |
| 475 | * Finish / Update Existing Clones |
| 476 | * @throws Exception |
| 477 | */ |
| 478 | public function deleteFinish() |
| 479 | { |
| 480 | |
| 481 | $response = [ |
| 482 | 'delete' => 'finished', |
| 483 | ]; |
| 484 | |
| 485 | $existingClones = get_option(Sites::STAGING_SITES_OPTION, []); |
| 486 | |
| 487 | // Check if clone exist and then remove it from options |
| 488 | $this->log("Verifying existing clones..."); |
| 489 | foreach ($existingClones as $name => $clone) { |
| 490 | if ($clone["path"] === $this->clone->path) { |
| 491 | unset($existingClones[$name]); |
| 492 | } |
| 493 | } |
| 494 | |
| 495 | if (update_option(Sites::STAGING_SITES_OPTION, $existingClones) === false) { |
| 496 | $this->log("Delete: Nothing to save.'"); |
| 497 | } |
| 498 | |
| 499 | // Delete cached file |
| 500 | $this->cache->delete($this->getJobCacheFileName()); |
| 501 | $this->cache->delete("delete_directories_{$this->clone->name}"); |
| 502 | $this->cache->delete("clone_options"); |
| 503 | |
| 504 | wp_die(json_encode($response)); |
| 505 | } |
| 506 | |
| 507 | /** |
| 508 | * Check if there is error in external database connection |
| 509 | * can happen if the external database does not exist or stored credentials are wrong |
| 510 | * @return bool |
| 511 | * |
| 512 | * @todo replace it logic with DbInfo once collation check PR is merged. |
| 513 | */ |
| 514 | private function isExternalDatabaseError() |
| 515 | { |
| 516 | if ($this->clone->databaseSsl) { |
| 517 | // wpdb requires this constant for SSL use |
| 518 | if (!defined('MYSQL_CLIENT_FLAGS')) { |
| 519 | // phpcs:disable PHPCompatibility.Constants.NewConstants.mysqli_client_ssl_dont_verify_server_certFound |
| 520 | define('MYSQL_CLIENT_FLAGS', MYSQLI_CLIENT_SSL | MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT); |
| 521 | } |
| 522 | |
| 523 | $db = mysqli_init(); |
| 524 | $db->real_connect($this->clone->databaseServer, $this->clone->databaseUser, $this->clone->databasePassword, $this->clone->databaseDatabase, null, null, MYSQL_CLIENT_FLAGS); |
| 525 | } else { |
| 526 | $db = new mysqli($this->clone->databaseServer, $this->clone->databaseUser, $this->clone->databasePassword, $this->clone->databaseDatabase); |
| 527 | } |
| 528 | if ($db->connect_error) { |
| 529 | return true; |
| 530 | } |
| 531 | |
| 532 | return false; |
| 533 | } |
| 534 | |
| 535 | /** |
| 536 | * Return the cache file which contains the info about current job |
| 537 | * |
| 538 | * @return string |
| 539 | */ |
| 540 | private function getJobCacheFileName() |
| 541 | { |
| 542 | return "delete_job_{$this->clone->name}"; |
| 543 | } |
| 544 | } |
| 545 |