MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / includes / media / Tiff.php

diff --git a/includes/media/Tiff.php b/includes/media/Tiff.php
index 8773201f7627ee393c0e361bceabce82e4ee0e72..f0f4cdad6c76067b4d5a5a6f4108ec5f40d471a6 100644 (file)
--- a/includes/media/Tiff.php
+++ b/includes/media/Tiff.php
@@ -2,6 +2,21 @@
 /**
  * Handler for Tiff images.
  *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
  * @file
  * @ingroup Media
  */
@@ -11,27 +26,82 @@
  *
  * @ingroup Media
  */
-class TiffHandler extends BitmapHandler {
+class TiffHandler extends ExifBitmapHandler {
+       const EXPENSIVE_SIZE_LIMIT = 10485760; // TIFF files over 10M are considered expensive to thumbnail
 
        /**
         * Conversion to PNG for inline display can be disabled here...
         * Note scaling should work with ImageMagick, but may not with GD scaling.
+        *
+        * Files pulled from an another MediaWiki instance via ForeignAPIRepo /
+        * InstantCommons will have thumbnails managed from the remote instance,
+        * so we can skip this check.
+        *
+        * @param File $file
+        * @return bool
         */
-       function canRender( $file ) {
+       public function canRender( $file ) {
                global $wgTiffThumbnailType;
-               return (bool)$wgTiffThumbnailType;
+
+               return (bool)$wgTiffThumbnailType
+                       || $file->getRepo() instanceof ForeignAPIRepo;
        }
 
        /**
         * Browsers don't support TIFF inline generally...
         * For inline display, we need to convert to PNG.
+        *
+        * @param File $file
+        * @return bool
         */
-       function mustRender( $file ) {
+       public function mustRender( $file ) {
                return true;
        }
 
+       /**
+        * @param string $ext
+        * @param string $mime
+        * @param array $params
+        * @return bool
+        */
        function getThumbType( $ext, $mime, $params = null ) {
                global $wgTiffThumbnailType;
+
                return $wgTiffThumbnailType;
        }
+
+       /**
+        * @param File|FSFile $image
+        * @param string $filename
+        * @throws MWException
+        * @return string
+        */
+       function getMetadata( $image, $filename ) {
+               global $wgShowEXIF;
+
+               if ( $wgShowEXIF ) {
+                       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' );
+                               }
+                               $meta['MEDIAWIKI_EXIF_VERSION'] = Exif::version();
+
+                               return serialize( $meta );
+                       } catch ( Exception $e ) {
+                               // BitmapMetadataHandler throws an exception in certain exceptional
+                               // cases like if file does not exist.
+                               wfDebug( __METHOD__ . ': ' . $e->getMessage() . "\n" );
+
+                               return ExifBitmapHandler::BROKEN_FILE;
+                       }
+               } else {
+                       return '';
+               }
+       }
+
+       public function isExpensiveToThumbnail( $file ) {
+               return $file->getSize() > static::EXPENSIVE_SIZE_LIMIT;
+       }
 }