From: William Lallemand <wlallemand@haproxy.org>
Date: Wed, 2 Mar 2022 15:18:26 +0000 (+0100)
Subject: BUG/MEDIUM: httpclient/lua: infinite appctx loop with POST
X-Git-Tag: v2.6-dev3~75
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=10a37360c8c5dfc4a65aba81f67ae63fe5fa2161;p=thirdparty%2Fhaproxy.git

BUG/MEDIUM: httpclient/lua: infinite appctx loop with POST

When POSTing a request with a payload, and reusing the same httpclient
lua instance, one could encounter a spinning of the httpclient appctx.

Indeed the sent counter is not reset between 2 POSTs and the condition
for sending the EOM flag is never met.

Must fixed issue #1593.

To be backported in 2.5.
---

diff --git a/src/hlua.c b/src/hlua.c
index 3ca698e664..ea6fcba3d6 100644
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -7284,6 +7284,7 @@ __LJMP static int hlua_httpclient_send(lua_State *L, enum http_meth_t meth)
 		return 0;
 	}
 
+	hlua_hc->sent = 0;
 
 	hlua_hc->hc->req.url = istdup(ist(url_str));
 	hlua_hc->hc->req.meth = meth;