867ec07040
Note I'm intentionally not touching the entire file, but only methods I'm absolutely sure are already called from outside, e.g. from MediaHandlerFactory, and must be public because of this. I'm intentionally not doing anything with private or protected in this patch, as such changes are much more fragile. This is a direct follow up for the changes proposed in Iaa4f60d. Change-Id: Ida817b289ddd5e9a8c162cc1fa3335c639a0bbe5
107 lines
2.9 KiB
PHP
107 lines
2.9 KiB
PHP
<?php
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/**
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* Handler for Tiff images.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Media
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*/
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/**
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* Handler for Tiff images.
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*
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* @ingroup Media
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*/
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class TiffHandler extends ExifBitmapHandler {
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const EXPENSIVE_SIZE_LIMIT = 10485760; // TIFF files over 10M are considered expensive to thumbnail
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/**
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* Conversion to PNG for inline display can be disabled here...
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* Note scaling should work with ImageMagick, but may not with GD scaling.
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*
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* Files pulled from an another MediaWiki instance via ForeignAPIRepo /
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* InstantCommons will have thumbnails managed from the remote instance,
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* so we can skip this check.
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*
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* @param File $file
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* @return bool
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*/
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public function canRender( $file ) {
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global $wgTiffThumbnailType;
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return (bool)$wgTiffThumbnailType
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|| $file->getRepo() instanceof ForeignAPIRepo;
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}
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/**
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* Browsers don't support TIFF inline generally...
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* For inline display, we need to convert to PNG.
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*
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* @param File $file
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* @return bool
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*/
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public function mustRender( $file ) {
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return true;
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}
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/**
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* @param string $ext
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* @param string $mime
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* @param array|null $params
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* @return bool
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*/
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public function getThumbType( $ext, $mime, $params = null ) {
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global $wgTiffThumbnailType;
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return $wgTiffThumbnailType;
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}
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/**
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* @param File|FSFile $image
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* @param string $filename
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* @throws MWException
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* @return string
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*/
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public function getMetadata( $image, $filename ) {
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global $wgShowEXIF;
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if ( $wgShowEXIF ) {
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try {
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$meta = BitmapMetadataHandler::Tiff( $filename );
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if ( !is_array( $meta ) ) {
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// This should never happen, but doesn't hurt to be paranoid.
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throw new MWException( 'Metadata array is not an array' );
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}
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$meta['MEDIAWIKI_EXIF_VERSION'] = Exif::version();
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return serialize( $meta );
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} catch ( Exception $e ) {
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// BitmapMetadataHandler throws an exception in certain exceptional
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// cases like if file does not exist.
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wfDebug( __METHOD__ . ': ' . $e->getMessage() . "\n" );
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return ExifBitmapHandler::BROKEN_FILE;
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}
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} else {
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return '';
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}
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}
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public function isExpensiveToThumbnail( $file ) {
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return $file->getSize() > static::EXPENSIVE_SIZE_LIMIT;
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}
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}
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