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| 1 | <?php |
| 2 | /** |
| 3 | * MimeMagic helper functions for detecting and dealing with MIME types. |
| 4 | * |
| 5 | * @license GPL-2.0-or-later |
| 6 | * @file |
| 7 | */ |
| 8 | |
| 9 | namespace MediaWiki\Utils; |
| 10 | |
| 11 | use MediaWiki\FileRepo\File\File; |
| 12 | use MediaWiki\Media\MediaHandler; |
| 13 | use Wikimedia\FileBackend\FileBackend; |
| 14 | use Wikimedia\FileBackend\FSFile\FSFile; |
| 15 | use Wikimedia\Mime\MimeAnalyzer; |
| 16 | |
| 17 | /** |
| 18 | * MimeMagic helper wrapper |
| 19 | * |
| 20 | * @since 1.28 |
| 21 | */ |
| 22 | class MWFileProps { |
| 23 | /** @var MimeAnalyzer */ |
| 24 | private $magic; |
| 25 | |
| 26 | public function __construct( MimeAnalyzer $magic ) { |
| 27 | $this->magic = $magic; |
| 28 | } |
| 29 | |
| 30 | /** |
| 31 | * Get an associative array containing information about |
| 32 | * a file with the given storage path. |
| 33 | * |
| 34 | * Resulting array fields include: |
| 35 | * - fileExists |
| 36 | * - size (filesize in bytes) |
| 37 | * - mime (as major/minor) |
| 38 | * - media_type (value to be used with the MEDIATYPE_xxx constants) |
| 39 | * - metadata (handler specific) |
| 40 | * - sha1 (in base 36) |
| 41 | * - width |
| 42 | * - height |
| 43 | * - bits (bitrate) |
| 44 | * - file-mime |
| 45 | * - major_mime |
| 46 | * - minor_mime |
| 47 | * |
| 48 | * @param string $path Filesystem path to a file |
| 49 | * @param string|bool|null $ext The file extension, or true to extract it from the filename. |
| 50 | * Set it to false to ignore the extension. Might be null in case the file is going to be |
| 51 | * stashed. |
| 52 | * @return array |
| 53 | * @since 1.28 |
| 54 | */ |
| 55 | public function getPropsFromPath( $path, $ext ) { |
| 56 | $fsFile = new FSFile( $path ); |
| 57 | |
| 58 | $info = $this->newPlaceholderProps(); |
| 59 | $info['fileExists'] = $fsFile->exists(); |
| 60 | if ( $info['fileExists'] ) { |
| 61 | $info['size'] = $fsFile->getSize(); // bytes |
| 62 | $info['sha1'] = $fsFile->getSha1Base36(); |
| 63 | |
| 64 | # MIME type according to file contents |
| 65 | $info['file-mime'] = $this->magic->guessMimeType( $path, false ); |
| 66 | # Logical MIME type |
| 67 | $ext = ( $ext === true ) ? FileBackend::extensionFromPath( $path ) : (string)$ext; |
| 68 | |
| 69 | # XXX: MimeAnalyzer::improveTypeFromExtension() may return null (T253483, T413926). |
| 70 | # Unclear if callers of this method expect that. |
| 71 | $info['mime'] = $this->magic->improveTypeFromExtension( $info['file-mime'], $ext ); |
| 72 | |
| 73 | [ $info['major_mime'], $info['minor_mime'] ] = File::splitMime( $info['mime'] ); |
| 74 | $info['media_type'] = $this->magic->getMediaType( $path, $info['mime'] ); |
| 75 | |
| 76 | # Height, width and metadata |
| 77 | $handler = $info['mime'] !== null ? MediaHandler::getHandler( $info['mime'] ) : null; |
| 78 | if ( $handler ) { |
| 79 | $sizeAndMetadata = $handler->getSizeAndMetadataWithFallback( $fsFile, $path ); |
| 80 | if ( $sizeAndMetadata ) { |
| 81 | $info = $sizeAndMetadata + $info; |
| 82 | } |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | return $info; |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Empty place holder props for non-existing files |
| 91 | * |
| 92 | * Resulting array fields include: |
| 93 | * - fileExists |
| 94 | * - size (filesize in bytes) |
| 95 | * - mime (as major/minor) |
| 96 | * - media_type (value to be used with the MEDIATYPE_xxx constants) |
| 97 | * - metadata (handler specific) |
| 98 | * - sha1 (in base 36) |
| 99 | * - width |
| 100 | * - height |
| 101 | * - bits (bitrate) |
| 102 | * - file-mime |
| 103 | * - major_mime |
| 104 | * - minor_mime |
| 105 | * |
| 106 | * @return array |
| 107 | * @since 1.28 |
| 108 | */ |
| 109 | public function newPlaceholderProps() { |
| 110 | return FSFile::placeholderProps() + [ |
| 111 | 'metadata' => [], |
| 112 | 'width' => 0, |
| 113 | 'height' => 0, |
| 114 | 'bits' => 0, |
| 115 | 'media_type' => MEDIATYPE_UNKNOWN |
| 116 | ]; |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | /** @deprecated class alias since 1.46 */ |
| 121 | class_alias( MWFileProps::class, 'MWFileProps' ); |