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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\files; |
| 15 | |
| 16 | use phpbb\language\language; |
| 17 | |
| 18 | /** |
| 19 | * Responsible for holding all file relevant information, as well as doing file-specific operations. |
| 20 | * The {@link fileupload fileupload class} can be used to upload several files, each of them being this object to operate further on. |
| 21 | * |
| 22 | * @deprecated 4.0.0 Use phpbb\files\filespec_storage instead |
| 23 | */ |
| 24 | class filespec |
| 25 | { |
| 26 | /** @var string File name */ |
| 27 | protected $filename = ''; |
| 28 | |
| 29 | /** @var string Real name of file */ |
| 30 | protected $realname = ''; |
| 31 | |
| 32 | /** @var string Upload name of file */ |
| 33 | protected $uploadname = ''; |
| 34 | |
| 35 | /** @var string Mimetype of file */ |
| 36 | protected $mimetype = ''; |
| 37 | |
| 38 | /** @var string File extension */ |
| 39 | protected $extension = ''; |
| 40 | |
| 41 | /** @var int File size */ |
| 42 | protected $filesize = 0; |
| 43 | |
| 44 | /** @var int Width of file */ |
| 45 | protected $width = 0; |
| 46 | |
| 47 | /** @var int Height of file */ |
| 48 | protected $height = 0; |
| 49 | |
| 50 | /** @var array Image info including type and size */ |
| 51 | protected $image_info = array(); |
| 52 | |
| 53 | /** @var string Destination file name */ |
| 54 | protected $destination_file = ''; |
| 55 | |
| 56 | /** @var string Destination file path */ |
| 57 | protected $destination_path = ''; |
| 58 | |
| 59 | /** @var bool Whether file was moved */ |
| 60 | protected $file_moved = false; |
| 61 | |
| 62 | /** @var bool Whether file is local */ |
| 63 | protected $local = false; |
| 64 | |
| 65 | /** @var bool Class initialization flag */ |
| 66 | protected $class_initialized = false; |
| 67 | |
| 68 | /** @var array Error array */ |
| 69 | public $error = array(); |
| 70 | |
| 71 | /** @var upload Instance of upload class */ |
| 72 | public $upload; |
| 73 | |
| 74 | /** @var \phpbb\filesystem\filesystem_interface */ |
| 75 | protected $filesystem; |
| 76 | |
| 77 | /** @var \bantu\IniGetWrapper\IniGetWrapper ini_get() wrapper class */ |
| 78 | protected $php_ini; |
| 79 | |
| 80 | /** @var \FastImageSize\FastImageSize */ |
| 81 | protected $imagesize; |
| 82 | |
| 83 | /** @var language Language class */ |
| 84 | protected $language; |
| 85 | |
| 86 | /** @var string phpBB root path */ |
| 87 | protected $phpbb_root_path; |
| 88 | |
| 89 | /** @var \phpbb\plupload\plupload|null The plupload object */ |
| 90 | protected $plupload; |
| 91 | |
| 92 | /** @var \phpbb\mimetype\guesser|null phpBB Mimetype guesser */ |
| 93 | protected $mimetype_guesser; |
| 94 | |
| 95 | /** |
| 96 | * File upload class |
| 97 | * |
| 98 | * @param \phpbb\filesystem\filesystem_interface $phpbb_filesystem Filesystem |
| 99 | * @param language $language Language |
| 100 | * @param \bantu\IniGetWrapper\IniGetWrapper $php_ini ini_get() wrapper |
| 101 | * @param \FastImageSize\FastImageSize $imagesize Imagesize class |
| 102 | * @param string $phpbb_root_path phpBB root path |
| 103 | * @param \phpbb\mimetype\guesser|null $mimetype_guesser Mime type guesser |
| 104 | * @param \phpbb\plupload\plupload|null $plupload Plupload |
| 105 | */ |
| 106 | public function __construct(\phpbb\filesystem\filesystem_interface $phpbb_filesystem, language $language, \bantu\IniGetWrapper\IniGetWrapper $php_ini, \FastImageSize\FastImageSize $imagesize, $phpbb_root_path, \phpbb\mimetype\guesser|null $mimetype_guesser = null, \phpbb\plupload\plupload|null $plupload = null) |
| 107 | { |
| 108 | $this->filesystem = $phpbb_filesystem; |
| 109 | $this->language = $language; |
| 110 | $this->php_ini = $php_ini; |
| 111 | $this->imagesize = $imagesize; |
| 112 | $this->phpbb_root_path = $phpbb_root_path; |
| 113 | $this->plupload = $plupload; |
| 114 | $this->mimetype_guesser = $mimetype_guesser; |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * Set upload ary |
| 119 | * |
| 120 | * @param array $upload_ary Upload ary |
| 121 | * |
| 122 | * @return filespec This instance of the filespec class |
| 123 | */ |
| 124 | public function set_upload_ary($upload_ary) |
| 125 | { |
| 126 | if (!isset($upload_ary) || !count($upload_ary)) |
| 127 | { |
| 128 | return $this; |
| 129 | } |
| 130 | |
| 131 | $this->class_initialized = true; |
| 132 | $this->filename = $upload_ary['tmp_name']; |
| 133 | $this->filesize = $upload_ary['size']; |
| 134 | $name = $upload_ary['name']; |
| 135 | $name = trim(utf8_basename($name)); |
| 136 | $this->realname = $this->uploadname = $name; |
| 137 | $this->mimetype = $upload_ary['type']; |
| 138 | |
| 139 | // Opera adds the name to the mime type |
| 140 | $this->mimetype = ($this->mimetype && str_contains($this->mimetype, '; name')) ? str_replace(strstr($this->mimetype, '; name'), '', $this->mimetype) : $this->mimetype; |
| 141 | |
| 142 | if (!$this->mimetype) |
| 143 | { |
| 144 | $this->mimetype = 'application/octet-stream'; |
| 145 | } |
| 146 | |
| 147 | $this->extension = strtolower(self::get_extension($this->realname)); |
| 148 | |
| 149 | // Try to get real filesize from temporary folder (not always working) ;) |
| 150 | $this->filesize = ($this->get_filesize($this->filename)) ?: $this->filesize; |
| 151 | |
| 152 | $this->width = $this->height = 0; |
| 153 | $this->file_moved = false; |
| 154 | |
| 155 | $this->local = (isset($upload_ary['local_mode'])) ? true : false; |
| 156 | |
| 157 | return $this; |
| 158 | } |
| 159 | |
| 160 | /** |
| 161 | * Set the upload namespace |
| 162 | * |
| 163 | * @param upload $namespace Instance of upload class |
| 164 | * |
| 165 | * @return filespec This instance of the filespec class |
| 166 | */ |
| 167 | public function set_upload_namespace($namespace) |
| 168 | { |
| 169 | $this->upload = $namespace; |
| 170 | |
| 171 | return $this; |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * Check if class members were not properly initialised yet |
| 176 | * |
| 177 | * @return bool True if there was an init error, false if not |
| 178 | */ |
| 179 | public function init_error() |
| 180 | { |
| 181 | return !$this->class_initialized; |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * Set error in error array |
| 186 | * |
| 187 | * @param mixed $error Content for error array |
| 188 | * |
| 189 | * @return \phpbb\files\filespec This instance of the filespec class |
| 190 | */ |
| 191 | public function set_error($error) |
| 192 | { |
| 193 | $this->error[] = $error; |
| 194 | |
| 195 | return $this; |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Cleans destination filename |
| 200 | * |
| 201 | * @param string $mode Either real, unique, or unique_ext. Real creates a |
| 202 | * realname, filtering some characters, lowering every |
| 203 | * character. Unique creates a unique filename. |
| 204 | * @param string $prefix Prefix applied to filename |
| 205 | * @param string $user_id The user_id is only needed for when cleaning a user's avatar |
| 206 | */ |
| 207 | public function clean_filename($mode = 'unique', $prefix = '', $user_id = '') |
| 208 | { |
| 209 | if ($this->init_error()) |
| 210 | { |
| 211 | return; |
| 212 | } |
| 213 | |
| 214 | switch ($mode) |
| 215 | { |
| 216 | case 'real': |
| 217 | // Remove every extension from filename (to not let the mime bug being exposed) |
| 218 | if (strpos($this->realname, '.') !== false) |
| 219 | { |
| 220 | $this->realname = substr($this->realname, 0, strpos($this->realname, '.')); |
| 221 | } |
| 222 | |
| 223 | // Replace any chars which may cause us problems with _ |
| 224 | $bad_chars = array("'", "\\", ' ', '/', ':', '*', '?', '"', '<', '>', '|'); |
| 225 | |
| 226 | $this->realname = rawurlencode(str_replace($bad_chars, '_', strtolower($this->realname))); |
| 227 | $this->realname = preg_replace("/%(\w{2})/", '_', $this->realname); |
| 228 | |
| 229 | $this->realname = $prefix . $this->realname . '.' . $this->extension; |
| 230 | break; |
| 231 | |
| 232 | case 'unique': |
| 233 | $this->realname = $prefix . md5(unique_id()); |
| 234 | break; |
| 235 | |
| 236 | case 'avatar': |
| 237 | $this->extension = strtolower($this->extension); |
| 238 | $this->realname = $prefix . $user_id . '.' . $this->extension; |
| 239 | |
| 240 | break; |
| 241 | |
| 242 | case 'unique_ext': |
| 243 | default: |
| 244 | $this->realname = $prefix . md5(unique_id()) . '.' . $this->extension; |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | /** |
| 249 | * Get property from file object |
| 250 | * |
| 251 | * @param string $property Name of property |
| 252 | * |
| 253 | * @return mixed Content of property |
| 254 | */ |
| 255 | public function get($property) |
| 256 | { |
| 257 | if ($this->init_error() || !isset($this->$property)) |
| 258 | { |
| 259 | return false; |
| 260 | } |
| 261 | |
| 262 | return $this->$property; |
| 263 | } |
| 264 | |
| 265 | /** |
| 266 | * Check if file is an image (mime type) |
| 267 | * |
| 268 | * @return bool true if it is an image, false if not |
| 269 | */ |
| 270 | public function is_image() |
| 271 | { |
| 272 | return (strpos($this->mimetype, 'image/') === 0); |
| 273 | } |
| 274 | |
| 275 | /** |
| 276 | * Check if the file got correctly uploaded |
| 277 | * |
| 278 | * @return bool true if it is a valid upload, false if not |
| 279 | */ |
| 280 | public function is_uploaded() |
| 281 | { |
| 282 | $is_plupload = $this->plupload && $this->plupload->is_active(); |
| 283 | |
| 284 | if (!$this->local && !$is_plupload && !is_uploaded_file($this->filename)) |
| 285 | { |
| 286 | return false; |
| 287 | } |
| 288 | |
| 289 | if (($this->local || $is_plupload) && !file_exists($this->filename)) |
| 290 | { |
| 291 | return false; |
| 292 | } |
| 293 | |
| 294 | return true; |
| 295 | } |
| 296 | |
| 297 | /** |
| 298 | * Remove file |
| 299 | */ |
| 300 | public function remove() |
| 301 | { |
| 302 | if ($this->file_moved) |
| 303 | { |
| 304 | @unlink($this->destination_file); |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | /** |
| 309 | * Get file extension |
| 310 | * |
| 311 | * @param string $filename Filename that needs to be checked |
| 312 | * |
| 313 | * @return string Extension of the supplied filename |
| 314 | */ |
| 315 | public static function get_extension($filename) |
| 316 | { |
| 317 | $filename = utf8_basename($filename); |
| 318 | |
| 319 | if (strpos($filename, '.') === false) |
| 320 | { |
| 321 | return ''; |
| 322 | } |
| 323 | |
| 324 | $filename = explode('.', $filename); |
| 325 | return array_pop($filename); |
| 326 | } |
| 327 | |
| 328 | /** |
| 329 | * Get mime type |
| 330 | * |
| 331 | * @param string $filename Filename that needs to be checked |
| 332 | * @return string Mime type of supplied filename or empty string if mimetype could not be guessed |
| 333 | */ |
| 334 | public function get_mimetype($filename) |
| 335 | { |
| 336 | if ($this->mimetype_guesser !== null) |
| 337 | { |
| 338 | $mimetype = $this->mimetype_guesser->guess($filename, $this->uploadname); |
| 339 | |
| 340 | if ($mimetype !== 'application/octet-stream') |
| 341 | { |
| 342 | $this->mimetype = $mimetype; |
| 343 | } |
| 344 | } |
| 345 | |
| 346 | return $this->mimetype ?: ''; |
| 347 | } |
| 348 | |
| 349 | /** |
| 350 | * Get file size |
| 351 | * |
| 352 | * @param string $filename File name of file to check |
| 353 | * |
| 354 | * @return int File size |
| 355 | */ |
| 356 | public function get_filesize($filename) |
| 357 | { |
| 358 | return @filesize($filename) ?: 0; |
| 359 | } |
| 360 | |
| 361 | |
| 362 | /** |
| 363 | * Check the first 256 bytes for forbidden content |
| 364 | * |
| 365 | * @param array $disallowed_content Array containg disallowed content |
| 366 | * |
| 367 | * @return bool False if disallowed content found, true if not |
| 368 | */ |
| 369 | public function check_content($disallowed_content) |
| 370 | { |
| 371 | if (empty($disallowed_content)) |
| 372 | { |
| 373 | return true; |
| 374 | } |
| 375 | |
| 376 | $fp = @fopen($this->filename, 'rb'); |
| 377 | |
| 378 | if ($fp !== false) |
| 379 | { |
| 380 | $ie_mime_relevant = fread($fp, 256); |
| 381 | fclose($fp); |
| 382 | foreach ($disallowed_content as $forbidden) |
| 383 | { |
| 384 | if (stripos($ie_mime_relevant, '<' . $forbidden) !== false) |
| 385 | { |
| 386 | return false; |
| 387 | } |
| 388 | } |
| 389 | } |
| 390 | return true; |
| 391 | } |
| 392 | |
| 393 | /** |
| 394 | * Move file to destination folder |
| 395 | * The phpbb_root_path variable will be applied to the destination path |
| 396 | * |
| 397 | * @param string $destination Destination path, for example $config['avatar_path'] |
| 398 | * @param bool $overwrite If set to true, an already existing file will be overwritten |
| 399 | * @param bool $skip_image_check If set to true, the check for the file to be a valid image is skipped |
| 400 | * @param string|bool $chmod Permission mask for chmodding the file after a successful move. |
| 401 | * The mode entered here reflects the mode defined by {@link \phpbb\filesystem\filesystem::phpbb_chmod()} |
| 402 | * |
| 403 | * @return bool True if file was moved, false if not |
| 404 | * @access public |
| 405 | */ |
| 406 | public function move_file($destination, $overwrite = false, $skip_image_check = false, $chmod = false) |
| 407 | { |
| 408 | if (count($this->error)) |
| 409 | { |
| 410 | return false; |
| 411 | } |
| 412 | |
| 413 | $chmod = ($chmod === false) ? \phpbb\filesystem\filesystem_interface::CHMOD_READ | \phpbb\filesystem\filesystem_interface::CHMOD_WRITE : $chmod; |
| 414 | |
| 415 | // We need to trust the admin in specifying valid upload directories and an attacker not being able to overwrite it... |
| 416 | $this->destination_path = $this->phpbb_root_path . $destination; |
| 417 | |
| 418 | // Check if the destination path exist... |
| 419 | if (!file_exists($this->destination_path)) |
| 420 | { |
| 421 | @unlink($this->filename); |
| 422 | return false; |
| 423 | } |
| 424 | |
| 425 | $upload_mode = ($this->php_ini->getBool('open_basedir')) ? 'move' : 'copy'; |
| 426 | $upload_mode = ($this->local) ? 'local' : $upload_mode; |
| 427 | $this->destination_file = $this->destination_path . '/' . utf8_basename($this->realname); |
| 428 | |
| 429 | // Check if the file already exist, else there is something wrong... |
| 430 | if (file_exists($this->destination_file) && !$overwrite) |
| 431 | { |
| 432 | @unlink($this->filename); |
| 433 | $this->error[] = $this->language->lang($this->upload->error_prefix . 'GENERAL_UPLOAD_ERROR', $this->destination_file); |
| 434 | $this->file_moved = false; |
| 435 | return false; |
| 436 | } |
| 437 | else |
| 438 | { |
| 439 | if (file_exists($this->destination_file)) |
| 440 | { |
| 441 | @unlink($this->destination_file); |
| 442 | } |
| 443 | |
| 444 | switch ($upload_mode) |
| 445 | { |
| 446 | case 'copy': |
| 447 | |
| 448 | if (!@copy($this->filename, $this->destination_file)) |
| 449 | { |
| 450 | if (!@move_uploaded_file($this->filename, $this->destination_file)) |
| 451 | { |
| 452 | $this->error[] = $this->language->lang($this->upload->error_prefix . 'GENERAL_UPLOAD_ERROR', $this->destination_file); |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | break; |
| 457 | |
| 458 | case 'move': |
| 459 | |
| 460 | if (!@move_uploaded_file($this->filename, $this->destination_file)) |
| 461 | { |
| 462 | if (!@copy($this->filename, $this->destination_file)) |
| 463 | { |
| 464 | $this->error[] = $this->language->lang($this->upload->error_prefix . 'GENERAL_UPLOAD_ERROR', $this->destination_file); |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | break; |
| 469 | |
| 470 | case 'local': |
| 471 | |
| 472 | if (!@copy($this->filename, $this->destination_file)) |
| 473 | { |
| 474 | $this->error[] = $this->language->lang($this->upload->error_prefix . 'GENERAL_UPLOAD_ERROR', $this->destination_file); |
| 475 | } |
| 476 | |
| 477 | break; |
| 478 | } |
| 479 | |
| 480 | // Remove temporary filename |
| 481 | if (file_exists($this->filename)) |
| 482 | { |
| 483 | @unlink($this->filename); |
| 484 | } |
| 485 | |
| 486 | if (count($this->error)) |
| 487 | { |
| 488 | return false; |
| 489 | } |
| 490 | |
| 491 | try |
| 492 | { |
| 493 | $this->filesystem->phpbb_chmod($this->destination_file, $chmod); |
| 494 | } |
| 495 | catch (\phpbb\filesystem\exception\filesystem_exception $e) |
| 496 | { |
| 497 | // Do nothing |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | // Try to get real filesize from destination folder |
| 502 | $this->filesize = ($this->get_filesize($this->destination_file)) ?: $this->filesize; |
| 503 | |
| 504 | // Get mimetype of supplied file |
| 505 | $this->mimetype = $this->get_mimetype($this->destination_file); |
| 506 | |
| 507 | if ($this->is_image() && !$skip_image_check) |
| 508 | { |
| 509 | $this->width = $this->height = 0; |
| 510 | |
| 511 | $this->image_info = $this->imagesize->getImageSize($this->destination_file, $this->mimetype); |
| 512 | |
| 513 | if ($this->image_info !== false) |
| 514 | { |
| 515 | $this->width = $this->image_info['width']; |
| 516 | $this->height = $this->image_info['height']; |
| 517 | |
| 518 | // Check image type |
| 519 | $types = upload::image_types(); |
| 520 | |
| 521 | if (!isset($types[$this->image_info['type']]) || !in_array($this->extension, $types[$this->image_info['type']])) |
| 522 | { |
| 523 | if (!isset($types[$this->image_info['type']])) |
| 524 | { |
| 525 | $this->error[] = $this->language->lang('IMAGE_FILETYPE_INVALID', $this->image_info['type'], $this->mimetype); |
| 526 | } |
| 527 | else |
| 528 | { |
| 529 | $this->error[] = $this->language->lang('IMAGE_FILETYPE_MISMATCH', $types[$this->image_info['type']][0], $this->extension); |
| 530 | } |
| 531 | } |
| 532 | |
| 533 | // Make sure the dimensions match a valid image |
| 534 | if (empty($this->width) || empty($this->height)) |
| 535 | { |
| 536 | $this->error[] = $this->language->lang('ATTACHED_IMAGE_NOT_IMAGE'); |
| 537 | } |
| 538 | } |
| 539 | else |
| 540 | { |
| 541 | $this->error[] = $this->language->lang('UNABLE_GET_IMAGE_SIZE'); |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | $this->file_moved = true; |
| 546 | $this->additional_checks(); |
| 547 | unset($this->upload); |
| 548 | |
| 549 | return true; |
| 550 | } |
| 551 | |
| 552 | /** |
| 553 | * Performing additional checks |
| 554 | * |
| 555 | * @return bool False if issue was found, true if not |
| 556 | */ |
| 557 | public function additional_checks() |
| 558 | { |
| 559 | if (!$this->file_moved) |
| 560 | { |
| 561 | return false; |
| 562 | } |
| 563 | |
| 564 | // Filesize is too big or it's 0 if it was larger than the maxsize in the upload form |
| 565 | if ($this->upload->max_filesize && ($this->get('filesize') > $this->upload->max_filesize || $this->filesize == 0)) |
| 566 | { |
| 567 | $max_filesize = get_formatted_filesize($this->upload->max_filesize, false); |
| 568 | |
| 569 | $this->error[] = $this->language->lang($this->upload->error_prefix . 'WRONG_FILESIZE', $max_filesize['value'], $max_filesize['unit']); |
| 570 | |
| 571 | return false; |
| 572 | } |
| 573 | |
| 574 | if (!$this->upload->valid_dimensions($this)) |
| 575 | { |
| 576 | $this->error[] = $this->language->lang($this->upload->error_prefix . 'WRONG_SIZE', |
| 577 | $this->language->lang('PIXELS', (int) $this->upload->min_width), |
| 578 | $this->language->lang('PIXELS', (int) $this->upload->min_height), |
| 579 | $this->language->lang('PIXELS', (int) $this->upload->max_width), |
| 580 | $this->language->lang('PIXELS', (int) $this->upload->max_height), |
| 581 | $this->language->lang('PIXELS', (int) $this->width), |
| 582 | $this->language->lang('PIXELS', (int) $this->height)); |
| 583 | |
| 584 | return false; |
| 585 | } |
| 586 | |
| 587 | return true; |
| 588 | } |
| 589 | } |