| 1 |
<?php |
| 2 |
|
| 3 |
namespace WebPConvert\Helpers; |
| 4 |
|
| 5 |
use WebPConvert\Helpers\MimeType; |
| 6 |
use WebPConvert\Helpers\PathChecker; |
| 7 |
use WebPConvert\Exceptions\InvalidInputException; |
| 8 |
use WebPConvert\Exceptions\InvalidInput\InvalidImageTypeException; |
| 9 |
|
| 10 |
/** |
| 11 |
* Functions for sanitizing. |
| 12 |
* |
| 13 |
* @package WebPConvert |
| 14 |
* @author Bjørn Rosell <[email protected]> |
| 15 |
* @since Class available since Release 2.0.6 |
| 16 |
*/ |
| 17 |
class InputValidator |
| 18 |
{ |
| 19 |
|
| 20 |
private static $allowedMimeTypes = [ |
| 21 |
'image/jpeg', |
| 22 |
'image/png' |
| 23 |
]; |
| 24 |
|
| 25 |
/** |
| 26 |
* Check mimetype and if file path is ok and exists |
| 27 |
*/ |
| 28 |
public static function checkMimeType($filePath, $allowedMimeTypes = null) |
| 29 |
{ |
| 30 |
if (is_null($allowedMimeTypes)) { |
| 31 |
$allowedMimeTypes = self::$allowedMimeTypes; |
| 32 |
} |
| 33 |
// the following also tests that file path is ok and file exists |
| 34 |
$fileMimeType = MimeType::getMimeTypeDetectionResult($filePath); |
| 35 |
|
| 36 |
if (is_null($fileMimeType)) { |
| 37 |
throw new InvalidImageTypeException('Image type could not be detected'); |
| 38 |
} elseif ($fileMimeType === false) { |
| 39 |
throw new InvalidImageTypeException('File seems not to be an image.'); |
| 40 |
} elseif (!in_array($fileMimeType, $allowedMimeTypes)) { |
| 41 |
throw new InvalidImageTypeException('Unsupported mime type: ' . $fileMimeType); |
| 42 |
} |
| 43 |
} |
| 44 |
|
| 45 |
public static function checkSource($source) |
| 46 |
{ |
| 47 |
PathChecker::checkSourcePath($source); |
| 48 |
self::checkMimeType($source); |
| 49 |
} |
| 50 |
|
| 51 |
public static function checkDestination($destination) |
| 52 |
{ |
| 53 |
PathChecker::checkDestinationPath($destination); |
| 54 |
} |
| 55 |
|
| 56 |
public static function checkSourceAndDestination($source, $destination) |
| 57 |
{ |
| 58 |
self::checkSource($source); |
| 59 |
self::checkDestination($destination); |
| 60 |
} |
| 61 |
} |
| 62 |
|