Uniform behavour for tar and zip

lib/private/streamer.php

@@ -48,7 +48,12 @@ class Streamer {
 	 */
 	public function sendHeaders($name){
 		$extension = $this->streamerInstance instanceof ZipStreamer ? '.zip' : '.tar';
-		$this->streamerInstance->sendHeaders($name . $extension);
+		$fullName = $name . $extension;
+		// ZipStreamer does not escape name in Content-Disposition atm
+		if ($this->streamerInstance instanceof ZipStreamer) {
+			$fullName = rawurlencode($fullName);
+		}
+		$this->streamerInstance->sendHeaders($fullName);
 	}
 	
 	/**