1 files changed, 46 insertions, 0 deletions
diff --git a/includes/media/Jpeg.php b/includes/media/Jpeg.php
new file mode 100644
index 00000000..7033409b
--- /dev/null
+++ b/includes/media/Jpeg.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ * @file
+ * @ingroup Media
+ */
+
+/**
+ * JPEG specific handler.
+ * Inherits most stuff from BitmapHandler, just here to do the metadata handler differently.
+ *
+ * Metadata stuff common to Jpeg and built-in Tiff (not PagedTiffHandler) is
+ * in ExifBitmapHandler.
+ *
+ * @ingroup Media
+ */
+class JpegHandler extends ExifBitmapHandler {
+
+	function getMetadata ( $image, $filename ) {
+		try {
+			$meta = BitmapMetadataHandler::Jpeg( $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" );
+
+			/* This used to use 0 (ExifBitmapHandler::OLD_BROKEN_FILE) for the cases
+			 * 	* No metadata in the file
+			 * 	* Something is broken in the file.
+			 * However, if the metadata support gets expanded then you can't tell if the 0 is from
+			 * a broken file, or just no props found. A broken file is likely to stay broken, but
+			 * a file which had no props could have props once the metadata support is improved.
+			 * Thus switch to using -1 to denote only a broken file, and use an array with only
+			 * MEDIAWIKI_EXIF_VERSION to denote no props.
+			 */
+			return ExifBitmapHandler::BROKEN_FILE;
+		}
+	}
+
+}
+