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Close connection on all errors

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And use a proper cowboy_http_req:reply/4 call for the 204 response.
This commit is contained in:
Loïc Hoguin 2011-10-04 12:37:19 +02:00
parent 148fb949c5
commit 547107cfb9
1 changed files with 12 additions and 17 deletions
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29
src/cowboy_http_protocol.erl
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@ -78,7 +78,7 @@ parse_request(State=#state{buffer=Buffer}) ->
case erlang:decode_packet(http_bin, Buffer, []) of
{ok, Request, Rest} -> request(Request, State#state{buffer=Rest});
{more, _Length} -> wait_request(State);
{error, _Reason} -> error_response(400, State)
{error, _Reason} -> error_terminate(400, State)
end.
-spec wait_request(#state{}) -> ok.
@ -127,7 +127,7 @@ parse_header(Req, State=#state{buffer=Buffer}) ->
case erlang:decode_packet(httph_bin, Buffer, []) of
{ok, Header, Rest} -> header(Header, Req, State#state{buffer=Rest});
{more, _Length} -> wait_header(Req, State);
{error, _Reason} -> error_response(400, State)
{error, _Reason} -> error_terminate(400, State)
end.
-spec wait_header(#http_req{}, #state{}) -> ok.
@ -255,7 +255,7 @@ handler_terminate(HandlerState, Req, #state{handler={Handler, Opts}}) ->
next_request(HandlerState, Req=#http_req{buffer=Buffer}, State) ->
HandlerRes = handler_terminate(HandlerState, Req, State),
BodyRes = ensure_body_processed(Req),
RespRes = ensure_response(Req, State),
RespRes = ensure_response(Req),
case {HandlerRes, BodyRes, RespRes, State#state.connection} of
{ok, ok, ok, keepalive} ->
?MODULE:parse_request(State#state{
@ -274,31 +274,26 @@ ensure_body_processed(Req=#http_req{body_state=waiting}) ->
_Any -> ok
end.
-spec ensure_response(#http_req{}, #state{}) -> ok.
-spec ensure_response(#http_req{}) -> ok.
%% The handler has already fully replied to the client.
ensure_response(#http_req{resp_state=done}, _State) ->
ensure_response(#http_req{resp_state=done}) ->
ok;
%% No response has been sent but everything apparently went fine.
%% Reply with 204 No Content to indicate this.
ensure_response(#http_req{resp_state=waiting}, State) ->
error_response(204, State);
ensure_response(Req=#http_req{resp_state=waiting}) ->
_ = cowboy_http_req:reply(204, [], [], Req),
ok;
%% Close the chunked reply.
ensure_response(#http_req{socket=Socket, transport=Transport,
resp_state=chunks}, _State) ->
resp_state=chunks}) ->
Transport:send(Socket, <<"0\r\n\r\n">>),
close.
-spec error_response(http_status(), #state{}) -> ok.
error_response(Code, #state{socket=Socket,
transport=Transport, connection=Connection}) ->
-spec error_terminate(http_status(), #state{}) -> ok.
error_terminate(Code, State=#state{socket=Socket, transport=Transport}) ->
_ = cowboy_http_req:reply(Code, [], [], #http_req{
socket=Socket, transport=Transport,
connection=Connection, resp_state=waiting}),
ok.
-spec error_terminate(http_status(), #state{}) -> ok.
error_terminate(Code, State) ->
error_response(Code, State#state{connection=close}),
connection=close, resp_state=waiting}),
terminate(State).
-spec terminate(#state{}) -> ok.