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| 1 | <?php |
| 2 | /** |
| 3 | * |
| 4 | * This file is part of the phpBB Forum Software package. |
| 5 | * |
| 6 | * @copyright (c) phpBB Limited <https://www.phpbb.com> |
| 7 | * @license GNU General Public License, version 2 (GPL-2.0) |
| 8 | * |
| 9 | * For full copyright and license information, please see |
| 10 | * the docs/CREDITS.txt file. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | namespace phpbb\filesystem; |
| 15 | |
| 16 | use Symfony\Component\Filesystem\Exception\IOException; |
| 17 | use phpbb\filesystem\exception\filesystem_exception; |
| 18 | |
| 19 | /** |
| 20 | * A class with various functions that are related to paths, files and the filesystem |
| 21 | */ |
| 22 | class filesystem implements filesystem_interface |
| 23 | { |
| 24 | /** |
| 25 | * Store some information about file ownership for phpBB's chmod function |
| 26 | * |
| 27 | * @var array |
| 28 | */ |
| 29 | protected $chmod_info; |
| 30 | |
| 31 | /** |
| 32 | * Stores current working directory |
| 33 | * |
| 34 | * @var string|bool|null current working directory or false if it cannot be recovered |
| 35 | */ |
| 36 | protected $working_directory; |
| 37 | |
| 38 | /** |
| 39 | * Symfony's Filesystem component |
| 40 | * |
| 41 | * @var \Symfony\Component\Filesystem\Filesystem |
| 42 | */ |
| 43 | protected $symfony_filesystem; |
| 44 | |
| 45 | /** |
| 46 | * Constructor |
| 47 | */ |
| 48 | public function __construct() |
| 49 | { |
| 50 | $this->chmod_info = array(); |
| 51 | $this->symfony_filesystem = new \Symfony\Component\Filesystem\Filesystem(); |
| 52 | $this->working_directory = null; |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * {@inheritdoc} |
| 57 | */ |
| 58 | public function chgrp($files, $group, $recursive = false) |
| 59 | { |
| 60 | try |
| 61 | { |
| 62 | $this->symfony_filesystem->chgrp($files, $group, $recursive); |
| 63 | } |
| 64 | catch (IOException $e) |
| 65 | { |
| 66 | // Try to recover filename |
| 67 | // By the time this is written that is at the end of the message |
| 68 | $error = trim($e->getMessage()); |
| 69 | $file = substr($error, strrpos($error, ' ')); |
| 70 | |
| 71 | throw new filesystem_exception('FILESYSTEM_CANNOT_CHANGE_FILE_GROUP', $file, array(), $e); |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * {@inheritdoc} |
| 77 | */ |
| 78 | public function chmod($files, $perms = null, $recursive = false, $force_chmod_link = false) |
| 79 | { |
| 80 | if (is_null($perms)) |
| 81 | { |
| 82 | // Default to read permission for compatibility reasons |
| 83 | $perms = self::CHMOD_READ; |
| 84 | } |
| 85 | |
| 86 | // Check if we got a permission flag |
| 87 | if ($perms > self::CHMOD_ALL) |
| 88 | { |
| 89 | $file_perm = $perms; |
| 90 | |
| 91 | // Extract permissions |
| 92 | //$owner = ($file_perm >> 6) & 7; // This will be ignored |
| 93 | $group = ($file_perm >> 3) & 7; |
| 94 | $other = ($file_perm >> 0) & 7; |
| 95 | |
| 96 | // Does any permissions provided? if so we add execute bit for directories |
| 97 | $group = ($group !== 0) ? ($group | self::CHMOD_EXECUTE) : $group; |
| 98 | $other = ($other !== 0) ? ($other | self::CHMOD_EXECUTE) : $other; |
| 99 | |
| 100 | // Compute directory permissions |
| 101 | $dir_perm = (self::CHMOD_ALL << 6) + ($group << 3) + ($other << 3); |
| 102 | } |
| 103 | else |
| 104 | { |
| 105 | // Add execute bit to owner if execute bit is among perms |
| 106 | $owner_perm = (self::CHMOD_READ | self::CHMOD_WRITE) | ($perms & self::CHMOD_EXECUTE); |
| 107 | $file_perm = ($owner_perm << 6) + ($perms << 3) + ($perms << 0); |
| 108 | |
| 109 | // Compute directory permissions |
| 110 | $perm = ($perms !== 0) ? ($perms | self::CHMOD_EXECUTE) : $perms; |
| 111 | $dir_perm = (($owner_perm | self::CHMOD_EXECUTE) << 6) + ($perm << 3) + ($perm << 0); |
| 112 | } |
| 113 | |
| 114 | // Symfony's filesystem component does not support extra execution flags on directories |
| 115 | // so we need to implement it again |
| 116 | foreach ($this->to_iterator($files) as $file) |
| 117 | { |
| 118 | if ($recursive && is_dir($file) && !is_link($file)) |
| 119 | { |
| 120 | $this->chmod(new \FilesystemIterator($file), $perms, true); |
| 121 | } |
| 122 | |
| 123 | // Don't chmod links as mostly those require 0777 and that cannot be changed |
| 124 | if (is_dir($file) || (is_link($file) && $force_chmod_link)) |
| 125 | { |
| 126 | if (true !== @chmod($file, $dir_perm)) |
| 127 | { |
| 128 | throw new filesystem_exception('FILESYSTEM_CANNOT_CHANGE_FILE_PERMISSIONS', $file, array()); |
| 129 | } |
| 130 | } |
| 131 | else if (is_file($file)) |
| 132 | { |
| 133 | if (true !== @chmod($file, $file_perm)) |
| 134 | { |
| 135 | throw new filesystem_exception('FILESYSTEM_CANNOT_CHANGE_FILE_PERMISSIONS', $file, array()); |
| 136 | } |
| 137 | } |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * {@inheritdoc} |
| 143 | */ |
| 144 | public function chown($files, $user, $recursive = false) |
| 145 | { |
| 146 | try |
| 147 | { |
| 148 | $this->symfony_filesystem->chown($files, $user, $recursive); |
| 149 | } |
| 150 | catch (IOException $e) |
| 151 | { |
| 152 | // Try to recover filename |
| 153 | // By the time this is written that is at the end of the message |
| 154 | $error = trim($e->getMessage()); |
| 155 | $file = substr($error, strrpos($error, ' ')); |
| 156 | |
| 157 | throw new filesystem_exception('FILESYSTEM_CANNOT_CHANGE_FILE_GROUP', $file, array(), $e); |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | /** |
| 162 | * {@inheritdoc} |
| 163 | */ |
| 164 | public function clean_path($path) |
| 165 | { |
| 166 | return helper::clean_path($path); |
| 167 | } |
| 168 | |
| 169 | /** |
| 170 | * {@inheritdoc} |
| 171 | */ |
| 172 | public function copy($origin_file, $target_file, $override = false) |
| 173 | { |
| 174 | try |
| 175 | { |
| 176 | $this->symfony_filesystem->copy($origin_file, $target_file, $override); |
| 177 | } |
| 178 | catch (IOException $e) |
| 179 | { |
| 180 | throw new filesystem_exception('FILESYSTEM_CANNOT_COPY_FILES', '', array(), $e); |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * {@inheritdoc} |
| 186 | */ |
| 187 | public function dump_file($filename, $content) |
| 188 | { |
| 189 | try |
| 190 | { |
| 191 | $this->symfony_filesystem->dumpFile($filename, $content); |
| 192 | } |
| 193 | catch (IOException $e) |
| 194 | { |
| 195 | throw new filesystem_exception('FILESYSTEM_CANNOT_DUMP_FILE', $filename, array(), $e); |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | /** |
| 200 | * {@inheritdoc} |
| 201 | */ |
| 202 | public function exists($files) |
| 203 | { |
| 204 | return $this->symfony_filesystem->exists($files); |
| 205 | } |
| 206 | |
| 207 | /** |
| 208 | * {@inheritdoc} |
| 209 | */ |
| 210 | public function is_absolute_path($path) |
| 211 | { |
| 212 | return helper::is_absolute_path($path); |
| 213 | } |
| 214 | |
| 215 | /** |
| 216 | * {@inheritdoc} |
| 217 | */ |
| 218 | public function is_readable($files, $recursive = false) |
| 219 | { |
| 220 | foreach ($this->to_iterator($files) as $file) |
| 221 | { |
| 222 | if ($recursive && is_dir($file) && !is_link($file)) |
| 223 | { |
| 224 | if (!$this->is_readable(new \FilesystemIterator($file), true)) |
| 225 | { |
| 226 | return false; |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | if (!is_readable($file)) |
| 231 | { |
| 232 | return false; |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | return true; |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * {@inheritdoc} |
| 241 | */ |
| 242 | public function is_writable($files, $recursive = false) |
| 243 | { |
| 244 | if (defined('PHP_WINDOWS_VERSION_MAJOR') || !function_exists('is_writable')) |
| 245 | { |
| 246 | foreach ($this->to_iterator($files) as $file) |
| 247 | { |
| 248 | if ($recursive && is_dir($file) && !is_link($file)) |
| 249 | { |
| 250 | if (!$this->is_writable(new \FilesystemIterator($file), true)) |
| 251 | { |
| 252 | return false; |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | if (!$this->phpbb_is_writable($file)) |
| 257 | { |
| 258 | return false; |
| 259 | } |
| 260 | } |
| 261 | } |
| 262 | else |
| 263 | { |
| 264 | // use built in is_writable |
| 265 | foreach ($this->to_iterator($files) as $file) |
| 266 | { |
| 267 | if ($recursive && is_dir($file) && !is_link($file)) |
| 268 | { |
| 269 | if (!$this->is_writable(new \FilesystemIterator($file), true)) |
| 270 | { |
| 271 | return false; |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | if (!is_writable($file)) |
| 276 | { |
| 277 | return false; |
| 278 | } |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | return true; |
| 283 | } |
| 284 | |
| 285 | /** |
| 286 | * {@inheritdoc} |
| 287 | */ |
| 288 | public function make_path_relative($end_path, $start_path) |
| 289 | { |
| 290 | return helper::make_path_relative($end_path, $start_path); |
| 291 | } |
| 292 | |
| 293 | /** |
| 294 | * {@inheritdoc} |
| 295 | */ |
| 296 | public function mirror($origin_dir, $target_dir, \Traversable $iterator = null, $options = array()) |
| 297 | { |
| 298 | try |
| 299 | { |
| 300 | $this->symfony_filesystem->mirror($origin_dir, $target_dir, $iterator, $options); |
| 301 | } |
| 302 | catch (IOException $e) |
| 303 | { |
| 304 | $msg = $e->getMessage(); |
| 305 | $filename = substr($msg, strpos($msg, '"'), strrpos($msg, '"')); |
| 306 | |
| 307 | throw new filesystem_exception('FILESYSTEM_CANNOT_MIRROR_DIRECTORY', $filename, array(), $e); |
| 308 | } |
| 309 | } |
| 310 | |
| 311 | /** |
| 312 | * {@inheritdoc} |
| 313 | */ |
| 314 | public function mkdir($dirs, $mode = 0777) |
| 315 | { |
| 316 | try |
| 317 | { |
| 318 | $this->symfony_filesystem->mkdir($dirs, $mode); |
| 319 | } |
| 320 | catch (IOException $e) |
| 321 | { |
| 322 | $msg = $e->getMessage(); |
| 323 | $filename = substr($msg, strpos($msg, '"'), strrpos($msg, '"')); |
| 324 | |
| 325 | throw new filesystem_exception('FILESYSTEM_CANNOT_CREATE_DIRECTORY', $filename, array(), $e); |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | /** |
| 330 | * {@inheritdoc} |
| 331 | */ |
| 332 | public function phpbb_chmod($file, $perms = null, $recursive = false, $force_chmod_link = false) |
| 333 | { |
| 334 | if (is_null($perms)) |
| 335 | { |
| 336 | // Default to read permission for compatibility reasons |
| 337 | $perms = self::CHMOD_READ; |
| 338 | } |
| 339 | |
| 340 | if (empty($this->chmod_info)) |
| 341 | { |
| 342 | if (!function_exists('fileowner') || !function_exists('filegroup')) |
| 343 | { |
| 344 | $this->chmod_info['process'] = false; |
| 345 | } |
| 346 | else |
| 347 | { |
| 348 | $common_php_owner = @fileowner(__FILE__); |
| 349 | $common_php_group = @filegroup(__FILE__); |
| 350 | |
| 351 | // And the owner and the groups PHP is running under. |
| 352 | $php_uid = (function_exists('posix_getuid')) ? @posix_getuid() : false; |
| 353 | $php_gids = (function_exists('posix_getgroups')) ? @posix_getgroups() : false; |
| 354 | |
| 355 | // If we are unable to get owner/group, then do not try to set them by guessing |
| 356 | if (!$php_uid || empty($php_gids) || !$common_php_owner || !$common_php_group) |
| 357 | { |
| 358 | $this->chmod_info['process'] = false; |
| 359 | } |
| 360 | else |
| 361 | { |
| 362 | $this->chmod_info = array( |
| 363 | 'process' => true, |
| 364 | 'common_owner' => $common_php_owner, |
| 365 | 'common_group' => $common_php_group, |
| 366 | 'php_uid' => $php_uid, |
| 367 | 'php_gids' => $php_gids, |
| 368 | ); |
| 369 | } |
| 370 | } |
| 371 | } |
| 372 | |
| 373 | if ($this->chmod_info['process']) |
| 374 | { |
| 375 | try |
| 376 | { |
| 377 | foreach ($this->to_iterator($file) as $current_file) |
| 378 | { |
| 379 | $file_uid = @fileowner($current_file); |
| 380 | $file_gid = @filegroup($current_file); |
| 381 | |
| 382 | // Change owner |
| 383 | if (is_writable($file) && $file_uid !== $this->chmod_info['common_owner']) |
| 384 | { |
| 385 | $this->chown($current_file, $this->chmod_info['common_owner'], $recursive); |
| 386 | } |
| 387 | |
| 388 | // Change group |
| 389 | if (is_writable($file) && $file_gid !== $this->chmod_info['common_group']) |
| 390 | { |
| 391 | $this->chgrp($current_file, $this->chmod_info['common_group'], $recursive); |
| 392 | } |
| 393 | |
| 394 | clearstatcache(); |
| 395 | $file_uid = @fileowner($current_file); |
| 396 | $file_gid = @filegroup($current_file); |
| 397 | } |
| 398 | } |
| 399 | catch (filesystem_exception $e) |
| 400 | { |
| 401 | $this->chmod_info['process'] = false; |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | // Still able to process? |
| 406 | if ($this->chmod_info['process']) |
| 407 | { |
| 408 | if ($file_uid === $this->chmod_info['php_uid']) |
| 409 | { |
| 410 | $php = 'owner'; |
| 411 | } |
| 412 | else if (in_array($file_gid, $this->chmod_info['php_gids'])) |
| 413 | { |
| 414 | $php = 'group'; |
| 415 | } |
| 416 | else |
| 417 | { |
| 418 | // Since we are setting the everyone bit anyway, no need to do expensive operations |
| 419 | $this->chmod_info['process'] = false; |
| 420 | } |
| 421 | } |
| 422 | |
| 423 | // We are not able to determine or change something |
| 424 | if (!$this->chmod_info['process']) |
| 425 | { |
| 426 | $php = 'other'; |
| 427 | } |
| 428 | |
| 429 | switch ($php) |
| 430 | { |
| 431 | case 'owner': |
| 432 | try |
| 433 | { |
| 434 | $this->chmod($file, $perms, $recursive, $force_chmod_link); |
| 435 | clearstatcache(); |
| 436 | if ($this->is_readable($file) && $this->is_writable($file)) |
| 437 | { |
| 438 | break; |
| 439 | } |
| 440 | } |
| 441 | catch (filesystem_exception $e) |
| 442 | { |
| 443 | // Do nothing |
| 444 | } |
| 445 | case 'group': |
| 446 | try |
| 447 | { |
| 448 | $this->chmod($file, $perms, $recursive, $force_chmod_link); |
| 449 | clearstatcache(); |
| 450 | if ((!($perms & self::CHMOD_READ) || $this->is_readable($file, $recursive)) && (!($perms & self::CHMOD_WRITE) || $this->is_writable($file, $recursive))) |
| 451 | { |
| 452 | break; |
| 453 | } |
| 454 | } |
| 455 | catch (filesystem_exception $e) |
| 456 | { |
| 457 | // Do nothing |
| 458 | } |
| 459 | case 'other': |
| 460 | default: |
| 461 | $this->chmod($file, $perms, $recursive, $force_chmod_link); |
| 462 | break; |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | /** |
| 467 | * {@inheritdoc} |
| 468 | */ |
| 469 | public function realpath($path) |
| 470 | { |
| 471 | return helper::realpath($path); |
| 472 | } |
| 473 | |
| 474 | /** |
| 475 | * {@inheritdoc} |
| 476 | */ |
| 477 | public function remove($files) |
| 478 | { |
| 479 | try |
| 480 | { |
| 481 | $this->symfony_filesystem->remove($files); |
| 482 | } |
| 483 | catch (IOException $e) |
| 484 | { |
| 485 | // Try to recover filename |
| 486 | // By the time this is written that is at the end of the message |
| 487 | $error = trim($e->getMessage()); |
| 488 | $file = substr($error, strrpos($error, ' ')); |
| 489 | |
| 490 | throw new filesystem_exception('FILESYSTEM_CANNOT_DELETE_FILES', $file, array(), $e); |
| 491 | } |
| 492 | } |
| 493 | |
| 494 | /** |
| 495 | * {@inheritdoc} |
| 496 | */ |
| 497 | public function rename($origin, $target, $overwrite = false) |
| 498 | { |
| 499 | try |
| 500 | { |
| 501 | $this->symfony_filesystem->rename($origin, $target, $overwrite); |
| 502 | } |
| 503 | catch (IOException $e) |
| 504 | { |
| 505 | $msg = $e->getMessage(); |
| 506 | $filename = substr($msg, strpos($msg, '"'), strrpos($msg, '"')); |
| 507 | |
| 508 | throw new filesystem_exception('FILESYSTEM_CANNOT_RENAME_FILE', $filename, array(), $e); |
| 509 | } |
| 510 | } |
| 511 | |
| 512 | /** |
| 513 | * {@inheritdoc} |
| 514 | */ |
| 515 | public function symlink($origin_dir, $target_dir, $copy_on_windows = false) |
| 516 | { |
| 517 | try |
| 518 | { |
| 519 | $this->symfony_filesystem->symlink($origin_dir, $target_dir, $copy_on_windows); |
| 520 | } |
| 521 | catch (IOException $e) |
| 522 | { |
| 523 | throw new filesystem_exception('FILESYSTEM_CANNOT_CREATE_SYMLINK', $origin_dir, array(), $e); |
| 524 | } |
| 525 | } |
| 526 | |
| 527 | /** |
| 528 | * {@inheritdoc} |
| 529 | */ |
| 530 | public function touch($files, $time = null, $access_time = null) |
| 531 | { |
| 532 | try |
| 533 | { |
| 534 | $this->symfony_filesystem->touch($files, $time, $access_time); |
| 535 | } |
| 536 | catch (IOException $e) |
| 537 | { |
| 538 | // Try to recover filename |
| 539 | // By the time this is written that is at the end of the message |
| 540 | $error = trim($e->getMessage()); |
| 541 | $file = substr($error, strrpos($error, ' ')); |
| 542 | |
| 543 | throw new filesystem_exception('FILESYSTEM_CANNOT_TOUCH_FILES', $file, array(), $e); |
| 544 | } |
| 545 | } |
| 546 | |
| 547 | /** |
| 548 | * phpBB's implementation of is_writable |
| 549 | * |
| 550 | * @todo Investigate if is_writable is still buggy |
| 551 | * |
| 552 | * @param string $file file/directory to check if writable |
| 553 | * |
| 554 | * @return bool true if the given path is writable |
| 555 | */ |
| 556 | protected function phpbb_is_writable($file) |
| 557 | { |
| 558 | if (file_exists($file)) |
| 559 | { |
| 560 | // Canonicalise path to absolute path |
| 561 | $file = $this->realpath($file); |
| 562 | |
| 563 | if (is_dir($file)) |
| 564 | { |
| 565 | // Test directory by creating a file inside the directory |
| 566 | $result = @tempnam($file, 'i_w'); |
| 567 | |
| 568 | if (is_string($result) && file_exists($result)) |
| 569 | { |
| 570 | unlink($result); |
| 571 | |
| 572 | // Ensure the file is actually in the directory (returned realpathed) |
| 573 | return (strpos($result, $file) === 0) ? true : false; |
| 574 | } |
| 575 | } |
| 576 | else |
| 577 | { |
| 578 | $handle = new \SplFileInfo($file); |
| 579 | |
| 580 | // Returns TRUE if writable, FALSE otherwise |
| 581 | return $handle->isWritable(); |
| 582 | } |
| 583 | } |
| 584 | else |
| 585 | { |
| 586 | // file does not exist test if we can write to the directory |
| 587 | $dir = dirname($file); |
| 588 | |
| 589 | if (file_exists($dir) && is_dir($dir) && $this->phpbb_is_writable($dir)) |
| 590 | { |
| 591 | return true; |
| 592 | } |
| 593 | } |
| 594 | |
| 595 | return false; |
| 596 | } |
| 597 | |
| 598 | /** |
| 599 | * Try to resolve real path when PHP's realpath fails to do so |
| 600 | * |
| 601 | * @deprecated 3.3.0-a1 (To be removed: 4.0.0) |
| 602 | * |
| 603 | * @param ?string $path |
| 604 | * @return bool|string |
| 605 | */ |
| 606 | protected function phpbb_own_realpath($path) |
| 607 | { |
| 608 | // Replace all directory separators with '/' |
| 609 | $path = str_replace(DIRECTORY_SEPARATOR, '/', $path ?: ''); |
| 610 | |
| 611 | $is_absolute_path = false; |
| 612 | $path_prefix = ''; |
| 613 | |
| 614 | if ($this->is_absolute_path($path)) |
| 615 | { |
| 616 | $is_absolute_path = true; |
| 617 | } |
| 618 | else |
| 619 | { |
| 620 | // Resolve working directory and store it |
| 621 | if (is_null($this->working_directory)) |
| 622 | { |
| 623 | if (function_exists('getcwd')) |
| 624 | { |
| 625 | $this->working_directory = str_replace(DIRECTORY_SEPARATOR, '/', getcwd()); |
| 626 | } |
| 627 | |
| 628 | // |
| 629 | // From this point on we really just guessing |
| 630 | // If chdir were called we screwed |
| 631 | // |
| 632 | else if (function_exists('debug_backtrace')) |
| 633 | { |
| 634 | $call_stack = debug_backtrace(0); |
| 635 | $this->working_directory = str_replace(DIRECTORY_SEPARATOR, '/', dirname($call_stack[max(0, count($call_stack) - 1)]['file'])); |
| 636 | } |
| 637 | else |
| 638 | { |
| 639 | // |
| 640 | // Assuming that the working directory is phpBB root |
| 641 | // we could use this as a fallback, when phpBB will use controllers |
| 642 | // everywhere this will be a safe assumption |
| 643 | // |
| 644 | //$dir_parts = explode(DIRECTORY_SEPARATOR, __DIR__); |
| 645 | //$namespace_parts = explode('\\', trim(__NAMESPACE__, '\\')); |
| 646 | |
| 647 | //$namespace_part_count = count($namespace_parts); |
| 648 | |
| 649 | // Check if we still loading from root |
| 650 | //if (array_slice($dir_parts, -$namespace_part_count) === $namespace_parts) |
| 651 | //{ |
| 652 | // $this->working_directory = implode('/', array_slice($dir_parts, 0, -$namespace_part_count)); |
| 653 | //} |
| 654 | //else |
| 655 | //{ |
| 656 | // $this->working_directory = false; |
| 657 | //} |
| 658 | |
| 659 | $this->working_directory = false; |
| 660 | } |
| 661 | } |
| 662 | |
| 663 | if ($this->working_directory !== false) |
| 664 | { |
| 665 | $is_absolute_path = true; |
| 666 | $path = $this->working_directory . '/' . $path; |
| 667 | } |
| 668 | } |
| 669 | |
| 670 | if ($is_absolute_path) |
| 671 | { |
| 672 | if (defined('PHP_WINDOWS_VERSION_MAJOR')) |
| 673 | { |
| 674 | $path_prefix = $path[0] . ':'; |
| 675 | $path = substr($path, 2); |
| 676 | } |
| 677 | else |
| 678 | { |
| 679 | $path_prefix = ''; |
| 680 | } |
| 681 | } |
| 682 | |
| 683 | $resolved_path = $this->resolve_path($path, $path_prefix, $is_absolute_path); |
| 684 | if ($resolved_path === false) |
| 685 | { |
| 686 | return false; |
| 687 | } |
| 688 | |
| 689 | $resolved_path = (string) $resolved_path; |
| 690 | |
| 691 | if (!@file_exists($resolved_path) || (!@is_dir($resolved_path . '/') && !is_file($resolved_path))) |
| 692 | { |
| 693 | return false; |
| 694 | } |
| 695 | |
| 696 | // Return OS specific directory separators |
| 697 | $resolved = str_replace('/', DIRECTORY_SEPARATOR, $resolved_path); |
| 698 | |
| 699 | // Check for DIRECTORY_SEPARATOR at the end (and remove it!) |
| 700 | if (substr($resolved, -1) === DIRECTORY_SEPARATOR) |
| 701 | { |
| 702 | return substr($resolved, 0, -1); |
| 703 | } |
| 704 | |
| 705 | return $resolved; |
| 706 | } |
| 707 | |
| 708 | /** |
| 709 | * Convert file(s) to \Traversable object |
| 710 | * |
| 711 | * This is the same function as Symfony's toIterator, but that is private |
| 712 | * so we cannot use it. |
| 713 | * |
| 714 | * @param string|array|\Traversable $files filename/list of filenames |
| 715 | * @return \Traversable |
| 716 | */ |
| 717 | protected function to_iterator($files) |
| 718 | { |
| 719 | if (!$files instanceof \Traversable) |
| 720 | { |
| 721 | $files = new \ArrayObject(is_array($files) ? $files : array($files)); |
| 722 | } |
| 723 | |
| 724 | return $files; |
| 725 | } |
| 726 | |
| 727 | /** |
| 728 | * Try to resolve symlinks in path |
| 729 | * |
| 730 | * @deprecated 3.3.0-a1 (To be removed: 4.0.0) |
| 731 | * |
| 732 | * @param string $path The path to resolve |
| 733 | * @param string $prefix The path prefix (on windows the drive letter) |
| 734 | * @param bool $absolute Whether or not the path is absolute |
| 735 | * @param bool $return_array Whether or not to return path parts |
| 736 | * |
| 737 | * @return string|array|bool returns the resolved path or an array of parts of the path if $return_array is true |
| 738 | * or false if path cannot be resolved |
| 739 | */ |
| 740 | protected function resolve_path($path, $prefix = '', $absolute = false, $return_array = false) |
| 741 | { |
| 742 | return helper::resolve_path($path, $prefix, $absolute, $return_array); |
| 743 | } |
| 744 | } |