From: Ruediger Pluem <rpluem@apache.org>
Date: Fri, 6 Jun 2008 21:56:13 +0000 (+0000)
Subject: * Don't send 100-Continue when there was no Expect: 100-continue in the
X-Git-Tag: 2.3.0~537
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d9c0b7e0704e0f32d0c20ed0761bc3ab9264109b;p=apache

* Don't send 100-Continue when there was no Expect: 100-continue in the
  request headers.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@664150 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/server/protocol.c b/server/protocol.c
index 74dad061b2..8fc5c7f0c0 100644
--- a/server/protocol.c
+++ b/server/protocol.c
@@ -1648,6 +1648,14 @@ AP_DECLARE(void) ap_send_interim_response(request_rec *r, int send_headers)
                       "Status is %d - not sending interim response", r->status);
         return;
     }
+    if ((r->status == HTTP_CONTINUE) && !r->expecting_100) {
+        /*
+         * Don't send 100-Continue when there was no Expect: 100-continue
+         * in the request headers. For origin servers this is a SHOULD NOT
+         * for proxies it is a MUST NOT according to RFC 2616 8.2.3
+         */
+        return;
+    }
 
     x.f = r->connection->output_filters;
     x.bb = apr_brigade_create(r->pool, r->connection->bucket_alloc);