print warning if application code performing connection POST processing is buggy

1 files changed, 13 insertions, 1 deletions

diff --git a/src/microhttpd/connection.c b/src/microhttpd/connection.c
index a94a1ca6..5871df4a 100644
--- a/src/microhttpd/connection.c
+++ b/src/microhttpd/connection.c
@@ -1794,7 +1794,19 @@ process_request_body (struct MHD_Connection *connection)
 #endif
                    );
       if (0 != processed)
-        instant_retry = MHD_NO; /* client did not process everything */
+        {
+          instant_retry = MHD_NO; /* client did not process everything */
+#ifdef HAVE_MESSAGES
+          /* client did not process all POST data, complain if
+             the setup was incorrect, which may prevent us from
+             handling the rest of the request */
+          if ( ( (0 != (connection->daemon->options & MHD_USE_THREAD_PER_CONNECTION)) ||
+                 (0 != (connection->daemon->options & MHD_USE_SELECT_INTERNALLY)) ) &&
+               (MHD_NO == connection->suspended) )
+            MHD_DLOG (connection->daemon,
+                      "WARNING: incomplete POST processing and connection not suspended will result in hung connection.\n");
+        }
+#endif
       used -= processed;
       if (connection->have_chunked_upload == MHD_YES)
         connection->current_chunk_offset += used;