From: Christopher Faulet <cfaulet@haproxy.com>
Date: Mon, 1 Jul 2019 14:17:30 +0000 (+0200)
Subject: BUG/MINOR: mux-h1: Don't return the empty chunk on HEAD responses
X-Git-Tag: v2.1-dev1~45
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8fc304e8f996f0d9835e4d6524ef8961d3be076;p=thirdparty%2Fhaproxy.git

BUG/MINOR: mux-h1: Don't return the empty chunk on HEAD responses

HEAD responses must not have any body payload. But, because of a bug, for chunk
reponses, the empty chunk was always added.

This patch fixes the Github issue #146. It must be backported to 2.0 and 1.9.
---

diff --git a/src/mux_h1.c b/src/mux_h1.c
index e7d769b429..37cc8252dd 100644
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -1682,6 +1682,8 @@ static size_t h1_process_output(struct h1c *h1c, struct buffer *buf, size_t coun
 					h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
 					h1s->flags &= ~H1S_F_HAVE_O_CONN;
 				}
+				else if ((h1m->flags & H1_MF_RESP) &&  h1s->meth == HTTP_METH_HEAD)
+					h1m->state = H1_MSG_DONE;
 				else
 					h1m->state = H1_MSG_DATA;
 				break;