31003d22ea
Also made file/class documentation more consistent. Change-Id: I26a320bcddd4122ce423f536609d5794446d743e
63 lines
2.2 KiB
PHP
63 lines
2.2 KiB
PHP
<?php
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/**
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* Handler for JPEG 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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* JPEG specific handler.
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* Inherits most stuff from BitmapHandler, just here to do the metadata handler differently.
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*
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* Metadata stuff common to Jpeg and built-in Tiff (not PagedTiffHandler) is
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* in ExifBitmapHandler.
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*
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* @ingroup Media
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*/
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class JpegHandler extends ExifBitmapHandler {
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function getMetadata ( $image, $filename ) {
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try {
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$meta = BitmapMetadataHandler::Jpeg( $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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}
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catch ( MWException $e ) {
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// BitmapMetadataHandler throws an exception in certain exceptional cases like if file does not exist.
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wfDebug( __METHOD__ . ': ' . $e->getMessage() . "\n" );
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/* This used to use 0 (ExifBitmapHandler::OLD_BROKEN_FILE) for the cases
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* * No metadata in the file
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* * Something is broken in the file.
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* However, if the metadata support gets expanded then you can't tell if the 0 is from
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* a broken file, or just no props found. A broken file is likely to stay broken, but
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* a file which had no props could have props once the metadata support is improved.
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* Thus switch to using -1 to denote only a broken file, and use an array with only
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* MEDIAWIKI_EXIF_VERSION to denote no props.
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*/
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return ExifBitmapHandler::BROKEN_FILE;
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}
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}
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}
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