[libmicrohttpd] 04/08: Disallowed successful responses for CONNECT requests

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karlson2k pushed a commit to branch master
in repository libmicrohttpd.

commit 2ebe7a859cdfa1860067bca65bbd642a04687e95
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
AuthorDate: Fri Mar 11 15:57:41 2022 +0300

    Disallowed successful responses for CONNECT requests
    
    MHD currently does not support CONNECT pass-through.
    However, support could be added relatively easily.
    Contact MHD maintainers if you need CONNECT support.
---
 src/microhttpd/connection.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/microhttpd/connection.c b/src/microhttpd/connection.c
index e16d5ed1..465e0326 100644
--- a/src/microhttpd/connection.c
+++ b/src/microhttpd/connection.c
@@ -5264,6 +5264,17 @@ MHD_queue_response (struct MHD_Connection *connection,
       return MHD_NO;
     }
   }
+  if ( (MHD_HTTP_MTHD_CONNECT == connection->http_mthd) &&
+       (2 == status_code / 100) )
+  {
+#ifdef HAVE_MESSAGES
+    MHD_DLOG (daemon,
+              _ ("Successful (%u) response code cannot be used to answer " \
+                 "\"CONNECT\" request!\n"),
+              (status_code));
+#endif
+    return MHD_NO;
+  }
 
 #ifdef HAVE_MESSAGES
   if ( (0 != (MHD_RF_INSANITY_HEADER_CONTENT_LENGTH & response->flags)) &&

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