1: <?php
 2: 
 3: /*
 4:  * This file is part of the Symfony package.
 5:  *
 6:  * (c) Fabien Potencier <fabien@symfony.com>
 7:  *
 8:  * For the full copyright and license information, please view the LICENSE
 9:  * file that was distributed with this source code.
10:  */
11: 
12: namespace Symfony\Component\HttpFoundation\File\MimeType;
13: 
14: use Symfony\Component\HttpFoundation\File\Exception\FileNotFoundException;
15: use Symfony\Component\HttpFoundation\File\Exception\AccessDeniedException;
16: 
17: /**
18:  * Guesses the mime type using the PECL extension FileInfo
19:  *
20:  * @author Bernhard Schussek <bschussek@gmail.com>
21:  */
22: class FileinfoMimeTypeGuesser implements MimeTypeGuesserInterface
23: {
24:     /**
25:      * Returns whether this guesser is supported on the current OS/PHP setup
26:      *
27:      * @return Boolean
28:      */
29:     public static function isSupported()
30:     {
31:         return function_exists('finfo_open');
32:     }
33: 
34:     /**
35:      * {@inheritdoc}
36:      */
37:     public function guess($path)
38:     {
39:         if (!is_file($path)) {
40:             throw new FileNotFoundException($path);
41:         }
42: 
43:         if (!is_readable($path)) {
44:             throw new AccessDeniedException($path);
45:         }
46: 
47:         if (!self::isSupported()) {
48:             return null;
49:         }
50: 
51:         if (!$finfo = new \finfo(FILEINFO_MIME_TYPE)) {
52:             return null;
53:         }
54: 
55:         return $finfo->file($path);
56:     }
57: }
58: