zipping.php
477 lines
| 1 | <?php |
| 2 | |
| 3 | // Namespace |
| 4 | namespace BMI\Plugin\Zipper; |
| 5 | |
| 6 | // Use |
| 7 | use BMI\Plugin\Backup_Migration_Plugin as BMP; |
| 8 | use BMI\Plugin\BMI_Logger as Logger; |
| 9 | use BMI\Plugin\Progress\BMI_ZipProgress as Progress; |
| 10 | use BMI\Plugin\BMI_Zip_Explorer as ZipExplorer; |
| 11 | use BMI\Plugin\Scanner\BMI_BackupsScanner as Backups; |
| 12 | |
| 13 | // Exit on direct access |
| 14 | if (!defined('ABSPATH')) { |
| 15 | exit; |
| 16 | } |
| 17 | |
| 18 | /** |
| 19 | * BMI_Zipper |
| 20 | */ |
| 21 | class BMI_Zipper { |
| 22 | public function makeZIP($files, $output, $name, &$zip_progress, $cron = false) { |
| 23 | |
| 24 | // Verbose |
| 25 | Logger::log(__("Creating backup ", 'backup-backup')); |
| 26 | Logger::log(__("Found ", 'backup-backup') . sizeof($files) . __(" files to backup.", 'backup-backup')); |
| 27 | |
| 28 | // Require Universal Zip Library |
| 29 | require_once BMI_INCLUDES . '/zipper/src/zip.php'; |
| 30 | |
| 31 | // Start microtime for ZIP Process |
| 32 | $start = microtime(true); |
| 33 | |
| 34 | // Logs |
| 35 | $zip_progress->log(__("Preparing map of files...", 'backup-backup'), 'step'); |
| 36 | |
| 37 | // Try to catch error |
| 38 | try { |
| 39 | |
| 40 | // Create new ZIP |
| 41 | $zip = new Zip(); |
| 42 | $zip->zip_start($output, $files, $name, $zip_progress, $start); |
| 43 | |
| 44 | // Logs |
| 45 | $zip_progress->log(__("Files prepared.", 'backup-backup'), 'success'); |
| 46 | $zip_progress->log(__("Starting compression process...", 'backup-backup'), 'info'); |
| 47 | |
| 48 | // Close ZIP and Save |
| 49 | $lala = $zip->zip_end(2, $cron); |
| 50 | if (!$lala) { |
| 51 | $zip_progress->log(__("Something went wrong – removing backup files...", 'backup-backup'), 'error'); |
| 52 | |
| 53 | return false; |
| 54 | } |
| 55 | |
| 56 | return $lala; |
| 57 | } catch (\Throwable $e) { |
| 58 | |
| 59 | // Error print |
| 60 | $zip_progress->log(__("Reverting backup, removing file...", 'backup-backup'), 'step'); |
| 61 | $zip_progress->log(__("There was an error during backup...", 'backup-backup'), 'error'); |
| 62 | $zip_progress->log($e->getMessage(), 'error'); |
| 63 | |
| 64 | return false; |
| 65 | } catch (\Exception $e) { |
| 66 | |
| 67 | // Error print |
| 68 | $zip_progress->log(__("Reverting backup, removing file...", 'backup-backup'), 'step'); |
| 69 | $zip_progress->log(__("There was an error during backup...", 'backup-backup'), 'error'); |
| 70 | $zip_progress->log($e->getMessage(), 'error'); |
| 71 | |
| 72 | return false; |
| 73 | } |
| 74 | |
| 75 | return true; |
| 76 | } |
| 77 | |
| 78 | public function getZipFileContent($zipname, $filename) { |
| 79 | if (class_exists('ZipArchive') || class_exists('\ZipArchive')) { |
| 80 | $zip = new \ZipArchive(); |
| 81 | |
| 82 | if ($zip->open($zipname) === true) { |
| 83 | if ($content = $zip->getFromName($filename)) { |
| 84 | return json_decode($content); |
| 85 | } else { |
| 86 | return false; |
| 87 | } |
| 88 | } else { |
| 89 | return false; |
| 90 | } |
| 91 | } else { |
| 92 | if (!class_exists('PclZip')) { |
| 93 | if (!defined('PCLZIP_TEMPORARY_DIR')) { |
| 94 | $bmi_tmp_dir = BMI_TMP; |
| 95 | if (!file_exists($bmi_tmp_dir)) { |
| 96 | @mkdir($bmi_tmp_dir, 0775, true); |
| 97 | } |
| 98 | define('PCLZIP_TEMPORARY_DIR', $bmi_tmp_dir . DIRECTORY_SEPARATOR . 'bmi-'); |
| 99 | } |
| 100 | if (defined('BMI_PRO_PCLZIP') && file_exists(BMI_PRO_PCLZIP)) { |
| 101 | require_once BMI_PRO_PCLZIP; |
| 102 | } else { |
| 103 | require_once trailingslashit(ABSPATH) . 'wp-admin/includes/class-pclzip.php'; |
| 104 | } |
| 105 | } |
| 106 | $lib = new \PclZip($zipname); |
| 107 | $content = $lib->extract(PCLZIP_OPT_BY_NAME, $filename, PCLZIP_OPT_EXTRACT_AS_STRING); |
| 108 | if (isset($content[0]) && isset($content[0]['content'])) { |
| 109 | return json_decode($content[0]['content']); |
| 110 | } else { |
| 111 | return false; |
| 112 | } |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | public function getZipContentList($zippath, $savepath) { |
| 117 | |
| 118 | if (class_exists('ZipArchive') || class_exists('\ZipArchive')) { |
| 119 | |
| 120 | $zip = new \ZipArchive(); |
| 121 | $zip->open($zippath); |
| 122 | |
| 123 | if (!isset($zip->numFiles) || $zip->numFiles == 0 || $zip->numFiles === false) { |
| 124 | $zip->close(); |
| 125 | return false; |
| 126 | } |
| 127 | |
| 128 | $tmpf = fopen($savepath, 'a+'); |
| 129 | $totalAmount = $zip->numFiles; |
| 130 | |
| 131 | for ($i = 0; $i < $zip->numFiles; ++$i) { |
| 132 | |
| 133 | $stat = $zip->statIndex($i); |
| 134 | fwrite($tmpf, $stat['name'] . "\n"); |
| 135 | unset($stat); |
| 136 | |
| 137 | } |
| 138 | |
| 139 | fclose($tmpf); |
| 140 | $zip->close(); |
| 141 | |
| 142 | return $totalAmount; |
| 143 | |
| 144 | } else { |
| 145 | |
| 146 | if (!class_exists('PclZip')) { |
| 147 | if (!defined('PCLZIP_TEMPORARY_DIR')) { |
| 148 | $bmi_tmp_dir = BMI_TMP; |
| 149 | if (!file_exists($bmi_tmp_dir)) { |
| 150 | @mkdir($bmi_tmp_dir, 0775, true); |
| 151 | } |
| 152 | define('PCLZIP_TEMPORARY_DIR', $bmi_tmp_dir . DIRECTORY_SEPARATOR . 'bmi-'); |
| 153 | } |
| 154 | if (defined('BMI_PRO_PCLZIP') && file_exists(BMI_PRO_PCLZIP)) { |
| 155 | require_once BMI_PRO_PCLZIP; |
| 156 | } else { |
| 157 | require_once trailingslashit(ABSPATH) . 'wp-admin/includes/class-pclzip.php'; |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | $zip = new \PclZip($zippath); |
| 162 | $list = $zip->listContent(); |
| 163 | if ($list == 0) { |
| 164 | return false; |
| 165 | } |
| 166 | |
| 167 | $tmpf = fopen($savepath, 'a+'); |
| 168 | |
| 169 | $totalAmount = sizeof($list); |
| 170 | for ($i = 0; $i < $totalAmount; ++$i) { |
| 171 | |
| 172 | fwrite($tmpf, $list[$i]['filename'] . "\n"); |
| 173 | |
| 174 | } |
| 175 | |
| 176 | fclose($tmpf); |
| 177 | |
| 178 | return $totalAmount; |
| 179 | |
| 180 | } |
| 181 | |
| 182 | } |
| 183 | |
| 184 | public function getPartsToRestore($zippath, $savepath) { |
| 185 | if (!defined('BMI_PRO_INC') || !file_exists(BMI_PRO_INC . '/zip-explorer.php')) { |
| 186 | return false; |
| 187 | } |
| 188 | |
| 189 | require_once BMI_PRO_INC . '/zip-explorer.php'; |
| 190 | |
| 191 | $restorePartsFile = BMI_TMP . DIRECTORY_SEPARATOR . 'restore_parts.json'; |
| 192 | if (!file_exists($restorePartsFile)) { |
| 193 | return false; |
| 194 | } |
| 195 | |
| 196 | $restorePartsContent = json_decode(file_get_contents($restorePartsFile), true); |
| 197 | if (!$restorePartsContent || !isset($restorePartsContent['backupName'])) { |
| 198 | return false; |
| 199 | } |
| 200 | |
| 201 | if ($restorePartsContent['backupName'] !== basename($zippath)) { |
| 202 | Logger::log('Ignoring restore parts file, because it does not match the backup name.'); |
| 203 | @unlink($restorePartsFile); |
| 204 | return false; |
| 205 | } |
| 206 | |
| 207 | $zipExplorer = new ZipExplorer($zippath); |
| 208 | $amount = 0; |
| 209 | if (isset($restorePartsContent['dirs']) && is_array($restorePartsContent['dirs'])) { |
| 210 | foreach ($restorePartsContent['dirs'] as $dir) { |
| 211 | $amount += $zipExplorer->scanDir($dir, $savepath); |
| 212 | } |
| 213 | |
| 214 | } |
| 215 | |
| 216 | if (isset($restorePartsContent['files']) && is_array($restorePartsContent['files'])) { |
| 217 | $amount += sizeof($restorePartsContent['files']); |
| 218 | $files = implode("\n", $restorePartsContent['files']); |
| 219 | file_put_contents($savepath, $files, FILE_APPEND); |
| 220 | } |
| 221 | |
| 222 | file_put_contents($savepath, "\nbmi_backup_manifest.json", FILE_APPEND); |
| 223 | |
| 224 | |
| 225 | return $amount; |
| 226 | } |
| 227 | |
| 228 | public function getZipFileContentPlain($zipname, $filename) { |
| 229 | if (class_exists('ZipArchive')) { |
| 230 | $zip = new \ZipArchive(); |
| 231 | |
| 232 | if ($zip->open($zipname) === true) { |
| 233 | if ($content = $zip->getFromName($filename)) { |
| 234 | return $content; |
| 235 | } else { |
| 236 | return false; |
| 237 | } |
| 238 | } else { |
| 239 | return false; |
| 240 | } |
| 241 | } else { |
| 242 | if (!class_exists('PclZip')) { |
| 243 | if (!defined('PCLZIP_TEMPORARY_DIR')) { |
| 244 | $bmi_tmp_dir = BMI_TMP; |
| 245 | if (!file_exists($bmi_tmp_dir)) { |
| 246 | @mkdir($bmi_tmp_dir, 0775, true); |
| 247 | } |
| 248 | define('PCLZIP_TEMPORARY_DIR', $bmi_tmp_dir . DIRECTORY_SEPARATOR . 'bmi-'); |
| 249 | } |
| 250 | if (defined('BMI_PRO_PCLZIP') && file_exists(BMI_PRO_PCLZIP)) { |
| 251 | require_once BMI_PRO_PCLZIP; |
| 252 | } else { |
| 253 | require_once trailingslashit(ABSPATH) . 'wp-admin/includes/class-pclzip.php'; |
| 254 | } |
| 255 | } |
| 256 | $lib = new \PclZip($zipname); |
| 257 | |
| 258 | $content = $lib->extract(PCLZIP_OPT_BY_NAME, $filename, PCLZIP_OPT_EXTRACT_AS_STRING); |
| 259 | if (sizeof($content) > 0) { |
| 260 | return $content[0]['content']; |
| 261 | } else { |
| 262 | return false; |
| 263 | } |
| 264 | } |
| 265 | } |
| 266 | |
| 267 | public function lock_zip($zippath, $unlock = false) { |
| 268 | |
| 269 | // Require Universal Zip Library |
| 270 | require_once BMI_INCLUDES . '/zipper/src/zip.php'; |
| 271 | require_once BMI_INCLUDES . DIRECTORY_SEPARATOR . 'scanner' . DIRECTORY_SEPARATOR . 'backups.php'; |
| 272 | |
| 273 | try { |
| 274 | |
| 275 | // Path to lock file |
| 276 | $filename = '.lock'; |
| 277 | |
| 278 | // Load lib |
| 279 | if (!class_exists('PclZip')) { |
| 280 | if (!defined('PCLZIP_TEMPORARY_DIR')) { |
| 281 | $bmi_tmp_dir = BMI_TMP; |
| 282 | if (!file_exists($bmi_tmp_dir)) { |
| 283 | @mkdir($bmi_tmp_dir, 0775, true); |
| 284 | } |
| 285 | define('PCLZIP_TEMPORARY_DIR', $bmi_tmp_dir . DIRECTORY_SEPARATOR . 'bmi-'); |
| 286 | } |
| 287 | if (defined('BMI_PRO_PCLZIP') && file_exists(BMI_PRO_PCLZIP)) { |
| 288 | require_once BMI_PRO_PCLZIP; |
| 289 | } else { |
| 290 | require_once trailingslashit(ABSPATH) . 'wp-admin/includes/class-pclzip.php'; |
| 291 | } |
| 292 | } |
| 293 | $lib = new \PclZip($zippath); |
| 294 | $backups = Backups::getInstance(); |
| 295 | $backups->deleteBackupManifest(basename($zippath)); |
| 296 | |
| 297 | // Unlocking case |
| 298 | if ($unlock) { |
| 299 | if ($this->is_locked_zip($zippath)) { |
| 300 | $lib->delete(PCLZIP_OPT_BY_NAME, $filename); |
| 301 | } else { |
| 302 | return true; |
| 303 | } |
| 304 | } else { |
| 305 | if (!$this->is_locked_zip($zippath)) { |
| 306 | |
| 307 | // Locking case |
| 308 | $content = json_encode(['locked' => 'true']); |
| 309 | $lib->add([[PCLZIP_ATT_FILE_NAME => $filename, PCLZIP_ATT_FILE_CONTENT => $content]]); |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | return true; |
| 314 | } catch (\Exception $e) { |
| 315 | Logger::error($e); |
| 316 | |
| 317 | return false; |
| 318 | } catch (\Throwable $e) { |
| 319 | Logger::error($e); |
| 320 | |
| 321 | return false; |
| 322 | } |
| 323 | } |
| 324 | |
| 325 | public function is_locked_zip($zippath) { |
| 326 | $lock = $this->getZipFileContent($zippath, '.lock'); |
| 327 | if ($lock) { |
| 328 | if (isset($lock->locked) && $lock->locked == 'true') { |
| 329 | return true; |
| 330 | } else { |
| 331 | return false; |
| 332 | } |
| 333 | } else { |
| 334 | return false; |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | /** |
| 339 | * Checks if a ZIP archive is protected with a password/encrypted. |
| 340 | * |
| 341 | * @param string $filepath Absolute path to the ZIP file. |
| 342 | * @return bool True if protected/encrypted, false otherwise. |
| 343 | */ |
| 344 | public static function isZipProtected($filepath) { |
| 345 | if (!file_exists($filepath) || !is_readable($filepath)) { |
| 346 | return false; |
| 347 | } |
| 348 | |
| 349 | if (class_exists('ZipArchive')) { |
| 350 | $zip = new \ZipArchive(); |
| 351 | if ($zip->open($filepath) === true) { |
| 352 | $isProtected = false; |
| 353 | |
| 354 | for ($i = 0; $i < $zip->numFiles; $i++) { |
| 355 | $stat = $zip->statIndex($i); |
| 356 | // 'encryption_method' was introduced in PHP 7.2 / libzip 1.2.0 |
| 357 | if (isset($stat['encryption_method']) && $stat['encryption_method'] !== \ZipArchive::EM_NONE) { |
| 358 | $isProtected = true; |
| 359 | break; |
| 360 | } |
| 361 | } |
| 362 | $zip->close(); |
| 363 | |
| 364 | if ($isProtected) { |
| 365 | return true; |
| 366 | } |
| 367 | } |
| 368 | } |
| 369 | return false; |
| 370 | } |
| 371 | |
| 372 | /** |
| 373 | * Validates a password for a given ZIP file path, safely ignoring empty files. |
| 374 | * |
| 375 | * @param string $zipPath The absolute or relative path to the ZIP file. |
| 376 | * @param string $password The password to test. |
| 377 | * @return bool True if the password is correct, false otherwise. |
| 378 | * @throws \Exception If the file cannot be opened or lacks testable files. |
| 379 | */ |
| 380 | public static function validateZipPassword(string $zipPath, string $password): bool { |
| 381 | $zip = new \ZipArchive(); |
| 382 | |
| 383 | $res = $zip->open($zipPath); |
| 384 | if ($res !== true) { |
| 385 | throw new \Exception("Failed to open ZIP file. Error Code: " . $res); |
| 386 | } |
| 387 | |
| 388 | $zip->setPassword($password); |
| 389 | |
| 390 | if ($zip->locateName('.backup_name') !== false) { |
| 391 | $stat = $zip->statName('.backup_name'); |
| 392 | if ($stat && isset($stat['encryption_method']) && $stat['encryption_method'] !== \ZipArchive::EM_NONE) { |
| 393 | $content = $zip->getFromName('.backup_name'); |
| 394 | $zip->close(); |
| 395 | if ($content !== false && trim($content) === basename($zipPath)) { |
| 396 | return true; |
| 397 | } |
| 398 | return false; |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | $minFileSize = PHP_INT_MAX; |
| 403 | $minFileIndex = -1; |
| 404 | |
| 405 | for ($i = 0; $i < $zip->numFiles; $i++) { |
| 406 | $stat = $zip->statIndex($i); |
| 407 | |
| 408 | if ($stat === false || $stat['size'] === 0) { |
| 409 | continue; |
| 410 | } |
| 411 | |
| 412 | $isEncrypted = isset($stat['encryption_method']) && $stat['encryption_method'] !== \ZipArchive::EM_NONE; |
| 413 | |
| 414 | if ($isEncrypted && $stat['size'] > 0) { |
| 415 | if ($stat['size'] < $minFileSize) { |
| 416 | $minFileSize = $stat['size']; |
| 417 | $minFileIndex = $i; |
| 418 | if ($minFileSize < 5 * 1024 * 1024) { |
| 419 | break; |
| 420 | } |
| 421 | } |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | if ($minFileIndex !== -1) { |
| 426 | $content = $zip->getFromIndex($minFileIndex); |
| 427 | $zip->close(); |
| 428 | if ($content === false || strlen($content) === 0) { |
| 429 | return false; |
| 430 | } |
| 431 | return true; |
| 432 | } |
| 433 | |
| 434 | $zip->close(); |
| 435 | throw new \Exception("ZIP archive contains no non-empty encrypted files. Cannot validate password."); |
| 436 | } |
| 437 | |
| 438 | public function isFileExists($zippath, $filename) { |
| 439 | if (class_exists('ZipArchive')) { |
| 440 | $zip = new \ZipArchive(); |
| 441 | |
| 442 | if ($zip->open($zippath) === true) { |
| 443 | if ($zip->locateName($filename) !== false) { |
| 444 | return true; |
| 445 | } else { |
| 446 | return false; |
| 447 | } |
| 448 | } else { |
| 449 | return false; |
| 450 | } |
| 451 | } else { |
| 452 | if (!class_exists('PclZip')) { |
| 453 | if (!defined('PCLZIP_TEMPORARY_DIR')) { |
| 454 | $bmi_tmp_dir = BMI_TMP; |
| 455 | if (!file_exists($bmi_tmp_dir)) { |
| 456 | @mkdir($bmi_tmp_dir, 0775, true); |
| 457 | } |
| 458 | define('PCLZIP_TEMPORARY_DIR', $bmi_tmp_dir . DIRECTORY_SEPARATOR . 'bmi-'); |
| 459 | } |
| 460 | if (defined('BMI_PRO_PCLZIP') && file_exists(BMI_PRO_PCLZIP)) { |
| 461 | require_once BMI_PRO_PCLZIP; |
| 462 | } else { |
| 463 | require_once trailingslashit(ABSPATH) . 'wp-admin/includes/class-pclzip.php'; |
| 464 | } |
| 465 | } |
| 466 | $lib = new \PclZip($zippath); |
| 467 | |
| 468 | $content = $lib->extract(PCLZIP_OPT_BY_NAME, $filename, PCLZIP_OPT_EXTRACT_AS_STRING); |
| 469 | if (sizeof($content) > 0) { |
| 470 | return true; |
| 471 | } else { |
| 472 | return false; |
| 473 | } |
| 474 | } |
| 475 | } |
| 476 | } |
| 477 |