From: Anton Shestakov <av6@dwimlabs.net>
Date: Sat, 9 Jul 2016 13:55:37 +0000 (+0800)
Subject: mod_http_files: send valid ETag header
X-Git-Url: https://git.enpas.org/?p=prosody.git;a=commitdiff_plain;h=87fd458b978eae310245ec4678ec1312e8da3f31

mod_http_files: send valid ETag header

RFC 2616 section 14 (header field definitions) shows that ETag header content
should be wrapped in double quotes.
---

diff --git a/plugins/mod_http_files.lua b/plugins/mod_http_files.lua
index 3b602495..40f46c9c 100644
--- a/plugins/mod_http_files.lua
+++ b/plugins/mod_http_files.lua
@@ -109,7 +109,7 @@ function serve(opts)
 		local last_modified = os_date('!%a, %d %b %Y %H:%M:%S GMT', attr.modification);
 		response_headers.last_modified = last_modified;
 
-		local etag = ("%02x-%x-%x-%x"):format(attr.dev or 0, attr.ino or 0, attr.size or 0, attr.modification or 0);
+		local etag = ('"%02x-%x-%x-%x"'):format(attr.dev or 0, attr.ino or 0, attr.size or 0, attr.modification or 0);
 		response_headers.etag = etag;
 
 		local if_none_match = request_headers.if_none_match