From: Maxim Dounin <mdounin@mdounin.ru>
Date: Thu, 20 Feb 2020 13:19:29 +0000 (+0300)
Subject: Disabled multiple Transfer-Encoding headers.
X-Git-Tag: release-1.17.9~9
X-Git-Url: http://www.kaiwu.me/postgresql/commit/?a=commitdiff_plain;h=e64d798edb9950ef32ab98c21c190b513a3e262c;p=nginx.git

Disabled multiple Transfer-Encoding headers.

We anyway do not support more than one transfer encoding, so accepting
requests with multiple Transfer-Encoding headers doesn't make sense.
Further, we do not handle multiple headers, and ignore anything but
the first header.

Reported by Filippo Valsorda.
---

diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 80c19656f..85c980378 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -131,7 +131,7 @@ ngx_http_header_t  ngx_http_headers_in[] = {
 
     { ngx_string("Transfer-Encoding"),
                  offsetof(ngx_http_headers_in_t, transfer_encoding),
-                 ngx_http_process_header_line },
+                 ngx_http_process_unique_header_line },
 
     { ngx_string("TE"),
                  offsetof(ngx_http_headers_in_t, te),