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-rw-r--r--src/cowboy_http.erl7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/cowboy_http.erl b/src/cowboy_http.erl
index c681154..e287edc 100644
--- a/src/cowboy_http.erl
+++ b/src/cowboy_http.erl
@@ -916,6 +916,13 @@ commands(State0=#state{ref=Ref, parent=Parent, socket=Socket, transport=Transpor
%% @todo This should be the last stream running otherwise we need to wait before switching.
%% @todo If there's streams opened after this one, fail instead of 101.
State = cancel_timeout(State0),
+ %% Before we send the 101 response we need to stop receiving data
+ %% from the socket, otherwise the data might be receive before the
+ %% call to flush/0 and we end up inadvertently dropping a packet.
+ %%
+ %% @todo Handle cases where the request came with a body. We need
+ %% to process or skip the body before the upgrade can be completed.
+ Transport:setopts(Socket, [{active, false}]),
%% Send a 101 response, then terminate the stream.
#state{streams=Streams} = info(State, StreamID, {inform, 101, Headers}),
#stream{state=StreamState} = lists:keyfind(StreamID, #stream.id, Streams),