1 files changed, 49 insertions, 2 deletions

diff --git a/includes/media/Tiff.php b/includes/media/Tiff.php
index 8773201f..0f317e1a 100644
--- a/includes/media/Tiff.php
+++ b/includes/media/Tiff.php
@@ -11,27 +11,74 @@
  *
  * @ingroup Media
  */
-class TiffHandler extends BitmapHandler {
+class TiffHandler extends ExifBitmapHandler {
 
 	/**
 	 * 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
+	 *
+	 * @return bool
 	 */
 	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
+	 *
+	 * @return bool
 	 */
 	function mustRender( $file ) {
 		return true;
 	}
 
+	/**
+	 * @param $ext
+	 * @param $mime
+	 * @param $params
+	 * @return bool
+	 */
 	function getThumbType( $ext, $mime, $params = null ) {
 		global $wgTiffThumbnailType;
 		return $wgTiffThumbnailType;
 	}
+
+	/**
+	 * @param $image
+	 * @param $filename
+	 * @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 ( MWException $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 '';
+		}
+	}
 }