[nginx] Disabled handling of headers without a colon.

[Maxim Dounin]

details:   http://freenginx.org/hg/nginx/rev/9a5e2296c1be
branches:  
changeset: 9267:9a5e2296c1be
user:      Maxim Dounin <mdounin at mdounin.ru>
date:      Wed May 08 23:00:07 2024 +0300
description:
Disabled handling of headers without a colon.

Starting with nginx 0.1.29 (509:9b8c906f6e63), header names not followed
by a colon and a value were allowed.  Such headers were interpreted as
headers with an empty value.  With this change, such headers are
unconditionally rejected.

Requested by Maksim Yevmenkin.

diffstat:

 src/http/ngx_http_parse.c |  15 ---------------
 1 files changed, 0 insertions(+), 15 deletions(-)

diffs (25 lines):

diff --git a/src/http/ngx_http_parse.c b/src/http/ngx_http_parse.c
--- a/src/http/ngx_http_parse.c
+++ b/src/http/ngx_http_parse.c
@@ -961,21 +961,6 @@ ngx_http_parse_header_line(ngx_http_requ
                 break;
             }
 
-            if (ch == CR) {
-                r->header_name_end = p;
-                r->header_start = p;
-                r->header_end = p;
-                state = sw_almost_done;
-                break;
-            }
-
-            if (ch == LF) {
-                r->header_name_end = p;
-                r->header_start = p;
-                r->header_end = p;
-                goto done;
-            }
-
             /* IIS may send the duplicate "HTTP/1.1 ..." lines */
             if (ch == '/'
                 && r->upstream