curl/0067-curl-7.61.1-ntlm-force-http-1-1.patch
Jacek Migacz b61096d4ba NTLM: force the connection to HTTP/1.1
Resolves: RHEL-73788
2025-07-21 12:48:28 +02:00

43 lines
1.5 KiB
Diff

From cbea2fd2c74feabeb6f13b3e3df243b225b3b3ab Mon Sep 17 00:00:00 2001
From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Thu, 6 Dec 2018 17:26:13 +0100
Subject: [PATCH] NTLM: force the connection to HTTP/1.1
Since v7.62.0, cURL tries to use HTTP/2 whenever the server announces
the capability. However, NTLM authentication only works with HTTP/1.1,
and will likely remain in that boat (for details, see
https://docs.microsoft.com/en-us/iis/get-started/whats-new-in-iis-10/http2-on-iis#when-is-http2-not-supported).
When we just found out that we want to use NTLM, and when the current
connection runs in HTTP/2 mode, let's force the connection to be closed
and to be re-opened using HTTP/1.1.
Fixes https://github.com/curl/curl/issues/3341.
Closes #3345
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
lib/http.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/http.c b/lib/http.c
index aed7aa80f..7be6f8b92 100644
--- a/lib/http.c
+++ b/lib/http.c
@@ -526,6 +526,12 @@ CURLcode Curl_http_auth_act(struct connectdata *conn)
pickhost = pickoneauth(&data->state.authhost, authmask);
if(!pickhost)
data->state.authproblem = TRUE;
+ if(data->state.authhost.picked == CURLAUTH_NTLM &&
+ conn->httpversion > 11) {
+ infof(data, "Forcing HTTP/1.1 for NTLM");
+ connclose(conn, "Force HTTP/1.1 connection");
+ conn->data->set.httpversion = CURL_HTTP_VERSION_1_1;
+ }
}
if(conn->bits.proxy_user_passwd &&
((data->req.httpcode == 407) ||
--
2.50.0