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| 1 | <?php |
| 2 | /** |
| 3 | * Handler for Tiff images. |
| 4 | * |
| 5 | * @license GPL-2.0-or-later |
| 6 | * @file |
| 7 | * @ingroup Media |
| 8 | */ |
| 9 | |
| 10 | namespace MediaWiki\Media; |
| 11 | |
| 12 | use MediaWiki\FileRepo\File\File; |
| 13 | use MediaWiki\FileRepo\ForeignAPIRepo; |
| 14 | use MediaWiki\MainConfigNames; |
| 15 | use MediaWiki\MediaWikiServices; |
| 16 | |
| 17 | /** |
| 18 | * Handler for Tiff images. |
| 19 | * |
| 20 | * @ingroup Media |
| 21 | */ |
| 22 | class TiffHandler extends ExifBitmapHandler { |
| 23 | /** |
| 24 | * TIFF files over 10M are considered expensive to thumbnail |
| 25 | */ |
| 26 | private const EXPENSIVE_SIZE_LIMIT = 10_485_760; |
| 27 | |
| 28 | /** |
| 29 | * Conversion to PNG for inline display can be disabled here... |
| 30 | * Note scaling should work with ImageMagick, but may not with GD scaling. |
| 31 | * |
| 32 | * Files pulled from an another MediaWiki instance via ForeignAPIRepo / |
| 33 | * InstantCommons will have thumbnails managed from the remote instance, |
| 34 | * so we can skip this check. |
| 35 | * |
| 36 | * @param File $file |
| 37 | * @return bool |
| 38 | */ |
| 39 | public function canRender( $file ) { |
| 40 | $tiffThumbnailType = MediaWikiServices::getInstance()->getMainConfig() |
| 41 | ->get( MainConfigNames::TiffThumbnailType ); |
| 42 | |
| 43 | return (bool)$tiffThumbnailType |
| 44 | || $file->getRepo() instanceof ForeignAPIRepo; |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * Browsers don't support TIFF inline generally... |
| 49 | * For inline display, we need to convert to PNG. |
| 50 | * |
| 51 | * @param File $file |
| 52 | * @return bool |
| 53 | */ |
| 54 | public function mustRender( $file ) { |
| 55 | return true; |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * @param string $ext |
| 60 | * @param string $mime |
| 61 | * @param array|null $params |
| 62 | * @return array |
| 63 | */ |
| 64 | public function getThumbType( $ext, $mime, $params = null ) { |
| 65 | $tiffThumbnailType = MediaWikiServices::getInstance()->getMainConfig() |
| 66 | ->get( MainConfigNames::TiffThumbnailType ); |
| 67 | |
| 68 | return $tiffThumbnailType; |
| 69 | } |
| 70 | |
| 71 | /** @inheritDoc */ |
| 72 | public function getSizeAndMetadata( $state, $filename ) { |
| 73 | $showEXIF = MediaWikiServices::getInstance()->getMainConfig()->get( MainConfigNames::ShowEXIF ); |
| 74 | |
| 75 | try { |
| 76 | $meta = BitmapMetadataHandler::Tiff( $filename ); |
| 77 | if ( !is_array( $meta ) ) { |
| 78 | // This should never happen, but doesn't hurt to be paranoid. |
| 79 | throw new InvalidTiffException( 'Metadata array is not an array' ); |
| 80 | } |
| 81 | $info = [ |
| 82 | 'width' => $meta['ImageWidth'] ?? 0, |
| 83 | 'height' => $meta['ImageLength'] ?? 0, |
| 84 | ]; |
| 85 | $info = $this->applyExifRotation( $info, $meta ); |
| 86 | if ( $showEXIF ) { |
| 87 | $meta['MEDIAWIKI_EXIF_VERSION'] = Exif::version(); |
| 88 | $info['metadata'] = $meta; |
| 89 | } |
| 90 | return $info; |
| 91 | } catch ( InvalidTiffException $e ) { |
| 92 | // BitmapMetadataHandler throws an exception in certain exceptional |
| 93 | // cases like if file does not exist. |
| 94 | wfDebug( __METHOD__ . ': ' . $e->getMessage() ); |
| 95 | |
| 96 | return [ 'metadata' => [ '_error' => ExifBitmapHandler::BROKEN_FILE ] ]; |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | /** @inheritDoc */ |
| 101 | public function isExpensiveToThumbnail( $file ) { |
| 102 | return $file->getSize() > static::EXPENSIVE_SIZE_LIMIT; |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | /** @deprecated class alias since 1.46 */ |
| 107 | class_alias( TiffHandler::class, 'TiffHandler' ); |