TiffHandler.php

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<?php
use MediaWiki\MainConfigNames;
use MediaWiki\MediaWikiServices;
use Wikimedia\RequestTimeout\TimeoutException;
 
class TiffHandler extends ExifBitmapHandler {
    private const EXPENSIVE_SIZE_LIMIT = 10485760;
 
    public function canRender( $file ) {
        $tiffThumbnailType = MediaWikiServices::getInstance()->getMainConfig()
            ->get( MainConfigNames::TiffThumbnailType );
 
        return (bool)$tiffThumbnailType
            || $file->getRepo() instanceof ForeignAPIRepo;
    }
 
    public function mustRender( $file ) {
        return true;
    }
 
    public function getThumbType( $ext, $mime, $params = null ) {
        $tiffThumbnailType = MediaWikiServices::getInstance()->getMainConfig()
            ->get( MainConfigNames::TiffThumbnailType );
 
        return $tiffThumbnailType;
    }
 
    public function getSizeAndMetadata( $state, $filename ) {
        $showEXIF = MediaWikiServices::getInstance()->getMainConfig()->get( MainConfigNames::ShowEXIF );
 
        try {
            $meta = BitmapMetadataHandler::Tiff( $filename );
            if ( !is_array( $meta ) ) {
                // This should never happen, but doesn't hurt to be paranoid.
                throw new MWException( 'Metadata array is not an array' );
            }
            $info = [
                'width' => $meta['ImageWidth'] ?? 0,
                'height' => $meta['ImageLength'] ?? 0,
            ];
            $info = $this->applyExifRotation( $info, $meta );
            if ( $showEXIF ) {
                $meta['MEDIAWIKI_EXIF_VERSION'] = Exif::version();
                $info['metadata'] = $meta;
            }
            return $info;
        } catch ( TimeoutException $e ) {
            throw $e;
        } catch ( Exception $e ) {
            // BitmapMetadataHandler throws an exception in certain exceptional
            // cases like if file does not exist.
            wfDebug( __METHOD__ . ': ' . $e->getMessage() );
 
            return [ 'metadata' => [ '_error' => ExifBitmapHandler::BROKEN_FILE ] ];
        }
    }
 
    public function isExpensiveToThumbnail( $file ) {
        return $file->getSize() > static::EXPENSIVE_SIZE_LIMIT;
    }
}