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| 1 | <?php |
| 2 | /** |
| 3 | * Pop PHP Framework (http://www.popphp.org/) |
| 4 | * |
| 5 | * @link https://github.com/popphp/popphp-framework |
| 6 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 7 | * @copyright Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 8 | * @license http://www.popphp.org/license New BSD License |
| 9 | */ |
| 10 | |
| 11 | /** |
| 12 | * @namespace |
| 13 | */ |
| 14 | namespace Pop\Http\Server; |
| 15 | |
| 16 | /** |
| 17 | * HTTP server upload class |
| 18 | * |
| 19 | * @category Pop |
| 20 | * @package Pop\Http |
| 21 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 22 | * @copyright Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 23 | * @license http://www.popphp.org/license New BSD License |
| 24 | * @version 5.0.0 |
| 25 | */ |
| 26 | class Upload |
| 27 | { |
| 28 | |
| 29 | /** |
| 30 | * File is too big by the user-defined max size |
| 31 | */ |
| 32 | const UPLOAD_ERR_USER_SIZE = 9; |
| 33 | |
| 34 | /** |
| 35 | * File is not allowed, per user-definition |
| 36 | */ |
| 37 | const UPLOAD_ERR_NOT_ALLOWED = 10; |
| 38 | |
| 39 | /** |
| 40 | * Upload directory does not exist |
| 41 | */ |
| 42 | const UPLOAD_ERR_DIR_NOT_EXIST = 11; |
| 43 | |
| 44 | /** |
| 45 | * Upload directory not writable |
| 46 | */ |
| 47 | const UPLOAD_ERR_DIR_NOT_WRITABLE = 12; |
| 48 | |
| 49 | /** |
| 50 | * File security error |
| 51 | */ |
| 52 | const UPLOAD_ERR_FILE_NOT_SECURE = 13; |
| 53 | |
| 54 | /** |
| 55 | * Unexpected error |
| 56 | */ |
| 57 | const UPLOAD_ERR_UNEXPECTED = 14; |
| 58 | |
| 59 | /** |
| 60 | * Error messageed |
| 61 | * @var array |
| 62 | */ |
| 63 | protected static array $errorMessages = [ |
| 64 | 0 => 'The file uploaded successfully', |
| 65 | 1 => 'The uploaded file exceeds the upload_max_filesize directive', |
| 66 | 2 => 'The uploaded file exceeds the MAX_FILE_SIZE directive in the HTML form', |
| 67 | 3 => 'The uploaded file was only partially uploaded', |
| 68 | 4 => 'No file was uploaded', |
| 69 | 6 => 'Missing a temporary folder', |
| 70 | 7 => 'Failed to write file to disk', |
| 71 | 8 => 'A PHP extension stopped the file upload', |
| 72 | 9 => 'The uploaded file exceeds the user-defined max file size', |
| 73 | 10 => 'The uploaded file is not allowed', |
| 74 | 11 => 'The specified upload directory does not exist', |
| 75 | 12 => 'The specified upload directory is not writable', |
| 76 | 13 => 'The uploaded file was not uploaded securely', |
| 77 | 14 => 'Unexpected error' |
| 78 | ]; |
| 79 | |
| 80 | /** |
| 81 | * The upload directory path |
| 82 | * @var ?string |
| 83 | */ |
| 84 | protected ?string $uploadDir = null; |
| 85 | |
| 86 | /** |
| 87 | * The final filename of the uploaded file |
| 88 | * @var ?string |
| 89 | */ |
| 90 | protected ?string $uploadedFile = null; |
| 91 | |
| 92 | /** |
| 93 | * Allowed maximum file size |
| 94 | * @var int |
| 95 | */ |
| 96 | protected int $maxSize = 0; |
| 97 | |
| 98 | /** |
| 99 | * Allowed file types |
| 100 | * @var array |
| 101 | */ |
| 102 | protected array $allowedTypes = []; |
| 103 | |
| 104 | /** |
| 105 | * Disallowed file types |
| 106 | * @var array |
| 107 | */ |
| 108 | protected array $disallowedTypes = []; |
| 109 | |
| 110 | /** |
| 111 | * Overwrite flag |
| 112 | * @var bool |
| 113 | */ |
| 114 | protected bool $overwrite = false; |
| 115 | |
| 116 | /** |
| 117 | * Error flag |
| 118 | * @var int |
| 119 | */ |
| 120 | protected int $error = 0; |
| 121 | |
| 122 | /** |
| 123 | * Constructor |
| 124 | * |
| 125 | * Instantiate a file upload object |
| 126 | * |
| 127 | * @param string $dir |
| 128 | * @param int $maxSize |
| 129 | * @param ?array $disallowedTypes |
| 130 | * @param ?array $allowedTypes |
| 131 | */ |
| 132 | public function __construct(string $dir, int $maxSize = 0, ?array $disallowedTypes = null, ?array $allowedTypes = null) |
| 133 | { |
| 134 | $this->setUploadDir($dir); |
| 135 | $this->setMaxSize($maxSize); |
| 136 | |
| 137 | if (($disallowedTypes !== null) && (count($disallowedTypes) > 0)) { |
| 138 | $this->setDisallowedTypes($disallowedTypes); |
| 139 | } |
| 140 | if (($allowedTypes !== null) && (count($allowedTypes) > 0)) { |
| 141 | $this->setAllowedTypes($allowedTypes); |
| 142 | } |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * Create an upload object |
| 147 | * |
| 148 | * @param string $dir |
| 149 | * @param int $maxSize |
| 150 | * @param ?array $disallowedTypes |
| 151 | * @param ?array $allowedTypes |
| 152 | * @return Upload |
| 153 | */ |
| 154 | public static function create(string $dir, int $maxSize = 0, ?array $disallowedTypes = null, ?array $allowedTypes = null): Upload |
| 155 | { |
| 156 | return new static($dir, $maxSize, $disallowedTypes, $allowedTypes); |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * Check for a duplicate filename in the upload directory, and return a modified filename if it exists already |
| 161 | * |
| 162 | * @param string $dir |
| 163 | * @param string $file |
| 164 | * @return string |
| 165 | */ |
| 166 | public static function checkDuplicate(string $dir, string $file): string |
| 167 | { |
| 168 | return (new static($dir))->checkFilename($file); |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * Check if the file exists already in the upload directory |
| 173 | * |
| 174 | * @param string $dir |
| 175 | * @param string $file |
| 176 | * @return bool |
| 177 | */ |
| 178 | public static function doesFileExists(string $dir, string $file): bool |
| 179 | { |
| 180 | return (new static($dir))->fileExists($file); |
| 181 | } |
| 182 | |
| 183 | /** |
| 184 | * Set default file upload settings |
| 185 | * |
| 186 | * @return Upload |
| 187 | */ |
| 188 | public function setDefaults(): Upload |
| 189 | { |
| 190 | // Allow basic text, graphic, audio/video, data and archive file types |
| 191 | $allowedTypes = [ |
| 192 | 'ai', 'aif', 'aiff', 'avi', 'bmp', 'bz2', 'csv', 'doc', 'docx', 'eps', 'fla', 'flv', 'gif', 'gz', |
| 193 | 'jpe','jpg', 'jpeg', 'log', 'md', 'mov', 'mp2', 'mp3', 'mp4', 'mpg', 'mpeg', 'otf', 'pdf', |
| 194 | 'png', 'ppt', 'pptx', 'psd', 'rar', 'svg', 'swf', 'tar', 'tbz', 'tbz2', 'tgz', 'tif', 'tiff', 'tsv', |
| 195 | 'ttf', 'txt', 'wav', 'wma', 'wmv', 'xls', 'xlsx', 'xml', 'zip' |
| 196 | ]; |
| 197 | |
| 198 | // Disallow programming/development file types |
| 199 | $disallowedTypes = [ |
| 200 | 'css', 'htm', 'html', 'js', 'json', 'pgsql', 'php', 'php3', 'php4', 'php5', 'sql', 'sqlite', 'yaml', 'yml' |
| 201 | ]; |
| 202 | |
| 203 | // Set max file size to 10 MBs |
| 204 | $this->setMaxSize(10000000); |
| 205 | $this->setAllowedTypes($allowedTypes); |
| 206 | $this->setDisallowedTypes($disallowedTypes); |
| 207 | |
| 208 | return $this; |
| 209 | } |
| 210 | |
| 211 | /** |
| 212 | * Set the upload directory |
| 213 | * |
| 214 | * @param string $dir |
| 215 | * @return Upload |
| 216 | */ |
| 217 | public function setUploadDir(string $dir): Upload |
| 218 | { |
| 219 | // Check to see if the upload directory exists. |
| 220 | if (!file_exists($dir) || !is_dir($dir)) { |
| 221 | $this->error = self::UPLOAD_ERR_DIR_NOT_EXIST; |
| 222 | // Check to see if the permissions are set correctly. |
| 223 | } else if (!is_writable($dir)) { |
| 224 | $this->error = self::UPLOAD_ERR_DIR_NOT_WRITABLE; |
| 225 | } |
| 226 | |
| 227 | $this->uploadDir = $dir; |
| 228 | return $this; |
| 229 | } |
| 230 | |
| 231 | /** |
| 232 | * Set the upload directory |
| 233 | * |
| 234 | * @param int $maxSize |
| 235 | * @return Upload |
| 236 | */ |
| 237 | public function setMaxSize(int $maxSize): Upload |
| 238 | { |
| 239 | $this->maxSize = (int)$maxSize; |
| 240 | return $this; |
| 241 | } |
| 242 | |
| 243 | /** |
| 244 | * Set the allowed types |
| 245 | * |
| 246 | * @param array $allowedTypes |
| 247 | * @return Upload |
| 248 | */ |
| 249 | public function setAllowedTypes(array $allowedTypes): Upload |
| 250 | { |
| 251 | foreach ($allowedTypes as $type) { |
| 252 | $this->addAllowedType($type); |
| 253 | } |
| 254 | return $this; |
| 255 | } |
| 256 | |
| 257 | /** |
| 258 | * Set the disallowed types |
| 259 | * |
| 260 | * @param array $disallowedTypes |
| 261 | * @return Upload |
| 262 | */ |
| 263 | public function setDisallowedTypes(array $disallowedTypes): Upload |
| 264 | { |
| 265 | foreach ($disallowedTypes as $type) { |
| 266 | $this->addDisallowedType($type); |
| 267 | } |
| 268 | return $this; |
| 269 | } |
| 270 | |
| 271 | /** |
| 272 | * Add an allowed type |
| 273 | * |
| 274 | * @param string $type |
| 275 | * @return Upload |
| 276 | */ |
| 277 | public function addAllowedType(string $type): Upload |
| 278 | { |
| 279 | if (!in_array(strtolower($type), $this->allowedTypes)) { |
| 280 | $this->allowedTypes[] = strtolower($type); |
| 281 | } |
| 282 | return $this; |
| 283 | } |
| 284 | |
| 285 | /** |
| 286 | * Add a disallowed type |
| 287 | * |
| 288 | * @param string $type |
| 289 | * @return Upload |
| 290 | */ |
| 291 | public function addDisallowedType(string $type): Upload |
| 292 | { |
| 293 | if (!in_array(strtolower($type), $this->disallowedTypes)) { |
| 294 | $this->disallowedTypes[] = strtolower($type); |
| 295 | } |
| 296 | return $this; |
| 297 | } |
| 298 | |
| 299 | /** |
| 300 | * Remove an allowed type |
| 301 | * |
| 302 | * @param string $type |
| 303 | * @return Upload |
| 304 | */ |
| 305 | public function removeAllowedType(string $type): Upload |
| 306 | { |
| 307 | if (in_array(strtolower($type), $this->allowedTypes)) { |
| 308 | unset($this->allowedTypes[array_search(strtolower($type), $this->allowedTypes)]); |
| 309 | } |
| 310 | return $this; |
| 311 | } |
| 312 | |
| 313 | /** |
| 314 | * Remove a disallowed type |
| 315 | * |
| 316 | * @param string $type |
| 317 | * @return Upload |
| 318 | */ |
| 319 | public function removeDisallowedType(string $type): Upload |
| 320 | { |
| 321 | if (in_array(strtolower($type), $this->disallowedTypes)) { |
| 322 | unset($this->disallowedTypes[array_search(strtolower($type), $this->disallowedTypes)]); |
| 323 | } |
| 324 | return $this; |
| 325 | } |
| 326 | |
| 327 | /** |
| 328 | * Set the overwrite flag |
| 329 | * |
| 330 | * @param bool $overwrite |
| 331 | * @return Upload |
| 332 | */ |
| 333 | public function overwrite(bool $overwrite): Upload |
| 334 | { |
| 335 | $this->overwrite = (bool)$overwrite; |
| 336 | return $this; |
| 337 | } |
| 338 | |
| 339 | /** |
| 340 | * Get the upload directory |
| 341 | * |
| 342 | * @return string |
| 343 | */ |
| 344 | public function getUploadDir(): string |
| 345 | { |
| 346 | return $this->uploadDir; |
| 347 | } |
| 348 | |
| 349 | /** |
| 350 | * Get uploaded file |
| 351 | * |
| 352 | * @return string|null |
| 353 | */ |
| 354 | public function getUploadedFile(): string|null |
| 355 | { |
| 356 | return $this->uploadedFile; |
| 357 | } |
| 358 | |
| 359 | /** |
| 360 | * Get uploaded file full path |
| 361 | * |
| 362 | * @return string |
| 363 | */ |
| 364 | public function getUploadedFullPath(): string |
| 365 | { |
| 366 | return $this->uploadDir . DIRECTORY_SEPARATOR . $this->uploadedFile; |
| 367 | } |
| 368 | |
| 369 | /** |
| 370 | * Get the max size allowed |
| 371 | * |
| 372 | * @return int |
| 373 | */ |
| 374 | public function getMaxSize(): int |
| 375 | { |
| 376 | return $this->maxSize; |
| 377 | } |
| 378 | |
| 379 | /** |
| 380 | * Get the disallowed file types |
| 381 | * |
| 382 | * @return array |
| 383 | */ |
| 384 | public function getDisallowedTypes(): array |
| 385 | { |
| 386 | return $this->disallowedTypes; |
| 387 | } |
| 388 | |
| 389 | /** |
| 390 | * Get the allowed file types |
| 391 | * |
| 392 | * @return array |
| 393 | */ |
| 394 | public function getAllowedTypes(): array |
| 395 | { |
| 396 | return $this->allowedTypes; |
| 397 | } |
| 398 | |
| 399 | /** |
| 400 | * Determine if a file type is allowed |
| 401 | * |
| 402 | * @param string $ext |
| 403 | * @return bool |
| 404 | */ |
| 405 | public function isAllowed(string $ext): bool |
| 406 | { |
| 407 | $disallowed = ((count($this->disallowedTypes) > 0) && (in_array(strtolower($ext), $this->disallowedTypes))); |
| 408 | $allowed = ((count($this->allowedTypes) == 0) || |
| 409 | ((count($this->allowedTypes) > 0) && (in_array(strtolower($ext), $this->allowedTypes)))); |
| 410 | |
| 411 | return ((!$disallowed) && ($allowed)); |
| 412 | } |
| 413 | |
| 414 | /** |
| 415 | * Determine if a file type is not allowed |
| 416 | * |
| 417 | * @param string $ext |
| 418 | * @return bool |
| 419 | */ |
| 420 | public function isNotAllowed(string $ext): bool |
| 421 | { |
| 422 | $disallowed = ((count($this->disallowedTypes) > 0) && (in_array(strtolower($ext), $this->disallowedTypes))); |
| 423 | $allowed = ((count($this->allowedTypes) == 0) || |
| 424 | ((count($this->allowedTypes) > 0) && (in_array(strtolower($ext), $this->allowedTypes)))); |
| 425 | |
| 426 | return (($disallowed) && (!$allowed)); |
| 427 | } |
| 428 | |
| 429 | /** |
| 430 | * Determine if the overwrite flag is set |
| 431 | * |
| 432 | * @return bool |
| 433 | */ |
| 434 | public function isOverwrite(): bool |
| 435 | { |
| 436 | return $this->overwrite; |
| 437 | } |
| 438 | |
| 439 | /** |
| 440 | * Determine if the upload was a success |
| 441 | * |
| 442 | * @return bool |
| 443 | */ |
| 444 | public function isSuccess(): bool |
| 445 | { |
| 446 | return ($this->error == UPLOAD_ERR_OK); |
| 447 | } |
| 448 | |
| 449 | /** |
| 450 | * Determine if the upload was an error |
| 451 | * |
| 452 | * @return bool |
| 453 | */ |
| 454 | public function isError(): bool |
| 455 | { |
| 456 | return ($this->error != UPLOAD_ERR_OK); |
| 457 | } |
| 458 | |
| 459 | /** |
| 460 | * Get the upload error code |
| 461 | * |
| 462 | * @return int |
| 463 | */ |
| 464 | public function getErrorCode(): int |
| 465 | { |
| 466 | return $this->error; |
| 467 | } |
| 468 | |
| 469 | /** |
| 470 | * Get the upload error message |
| 471 | * |
| 472 | * @return string |
| 473 | */ |
| 474 | public function getErrorMessage(): string |
| 475 | { |
| 476 | return self::$errorMessages[$this->error]; |
| 477 | } |
| 478 | |
| 479 | /** |
| 480 | * Check if filename exists in the upload directory |
| 481 | * |
| 482 | * @param string $file |
| 483 | * @return bool |
| 484 | */ |
| 485 | public function fileExists(string $file): bool |
| 486 | { |
| 487 | return (file_exists($this->uploadDir . DIRECTORY_SEPARATOR . $file)); |
| 488 | } |
| 489 | |
| 490 | /** |
| 491 | * Check filename for duplicates, returning a new filename appended with _# |
| 492 | * |
| 493 | * @param string $file |
| 494 | * @return string |
| 495 | */ |
| 496 | public function checkFilename(string $file): string |
| 497 | { |
| 498 | $newFilename = $file; |
| 499 | $parts = pathinfo($file); |
| 500 | $origFilename = $parts['filename']; |
| 501 | $ext = (isset($parts['extension']) && ($parts['extension'] != '')) ? '.' . $parts['extension'] : null; |
| 502 | $i = 1; |
| 503 | |
| 504 | while ($this->fileExists($newFilename)) { |
| 505 | $newFilename = $origFilename . '_' . $i . $ext; |
| 506 | $i++; |
| 507 | } |
| 508 | |
| 509 | return $newFilename; |
| 510 | } |
| 511 | |
| 512 | /** |
| 513 | * Test a file upload before moving it |
| 514 | * |
| 515 | * @param array $file |
| 516 | * @return bool |
| 517 | */ |
| 518 | public function test(array $file): bool |
| 519 | { |
| 520 | if ($this->error != 0) { |
| 521 | return false; |
| 522 | } else { |
| 523 | if (!isset($file['error']) || !isset($file['size']) || !isset($file['tmp_name']) || !isset($file['name'])) { |
| 524 | return false; |
| 525 | } else { |
| 526 | $this->error = $file['error']; |
| 527 | if ($this->error != 0) { |
| 528 | return false; |
| 529 | } else { |
| 530 | $fileSize = $file['size']; |
| 531 | $fileParts = pathinfo($file['name']); |
| 532 | $ext = (isset($fileParts['extension'])) ? $fileParts['extension'] : null; |
| 533 | |
| 534 | if (($this->maxSize > 0) && ($fileSize > $this->maxSize)) { |
| 535 | $this->error = self::UPLOAD_ERR_USER_SIZE; |
| 536 | return false; |
| 537 | } else if (($ext !== null) && (!$this->isAllowed($ext))) { |
| 538 | $this->error = self::UPLOAD_ERR_NOT_ALLOWED; |
| 539 | return false; |
| 540 | } else if ($this->error == 0) { |
| 541 | return true; |
| 542 | } else { |
| 543 | $this->error = self::UPLOAD_ERR_UNEXPECTED; |
| 544 | return false; |
| 545 | } |
| 546 | } |
| 547 | } |
| 548 | } |
| 549 | } |
| 550 | |
| 551 | /** |
| 552 | * Upload file to the upload dir, returns the newly uploaded file |
| 553 | * |
| 554 | * @param array $file |
| 555 | * @param ?string $to |
| 556 | * @param bool $secure |
| 557 | * @return mixed |
| 558 | */ |
| 559 | public function upload(array $file, ?string $to = null, bool $secure = true): mixed |
| 560 | { |
| 561 | if ($this->test($file)) { |
| 562 | if ($to === null) { |
| 563 | $to = $file['name']; |
| 564 | } |
| 565 | if (!$this->overwrite) { |
| 566 | $to = $this->checkFilename($to); |
| 567 | } |
| 568 | |
| 569 | $this->uploadedFile = $to; |
| 570 | $to = $this->uploadDir . DIRECTORY_SEPARATOR . $to; |
| 571 | |
| 572 | $isUploaded = is_uploaded_file($file['tmp_name']); |
| 573 | |
| 574 | // Move the uploaded file, creating a file object with it. |
| 575 | if (($secure) && !($isUploaded)) { |
| 576 | $this->error = self::UPLOAD_ERR_FILE_NOT_SECURE; |
| 577 | return false; |
| 578 | } else { |
| 579 | $result = ((!$secure) && !($isUploaded)) ? |
| 580 | rename($file['tmp_name'], $to) : move_uploaded_file($file['tmp_name'], $to); |
| 581 | |
| 582 | if ($result) { |
| 583 | return $this->uploadedFile; |
| 584 | } else { |
| 585 | $this->error = self::UPLOAD_ERR_UNEXPECTED; |
| 586 | return false; |
| 587 | } |
| 588 | } |
| 589 | } else { |
| 590 | return false; |
| 591 | } |
| 592 | |
| 593 | } |
| 594 | |
| 595 | } |