From 9bebf9b4c81e12cd7ce47852538f6f8f10654e5b Mon Sep 17 00:00:00 2001
From: Michael Gapczynski <mtgap@owncloud.com>
Date: Fri, 17 May 2013 14:14:12 -0400
Subject: [PATCH] Don't set Content-Length header if size is unknown

---
 lib/files.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/files.php b/lib/files.php
index ab7fa1ed09..abb1617c25 100644
--- a/lib/files.php
+++ b/lib/files.php
@@ -123,8 +123,11 @@ class OC_Files {
 				header('Content-Length: ' . filesize($filename));
 				self::addSendfileHeader($filename);
 			}else{
+				$filesize = \OC\Files\Filesystem::filesize($filename);
 				header('Content-Type: '.\OC\Files\Filesystem::getMimeType($filename));
-				header("Content-Length: ".\OC\Files\Filesystem::filesize($filename));
+				if ($filesize > -1) {
+					header("Content-Length: ".$filesize);
+				}
 				list($storage) = \OC\Files\Filesystem::resolvePath($filename);
 				if ($storage instanceof \OC\Files\Storage\Local) {
 					self::addSendfileHeader(\OC\Files\Filesystem::getLocalFile($filename));