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Add support for Expect: 100-continue

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This makes uploading files with curl a lot faster than without.
This commit is contained in:
Loïc Hoguin 2012-07-21 19:43:23 +02:00
parent 3d1ddd1d8a
commit dc759faf60
1 changed files with 14 additions and 3 deletions
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17
src/cowboy_http_req.erl
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@ -275,7 +275,7 @@ parse_header(Name, Req, Default) when Name =:= 'Content-Type' ->
fun (Value) ->
cowboy_http:content_type(Value)
end);
parse_header(Name, Req, Default) when Name =:= 'Expect' ->
parse_header(Name, Req, Default) when Name =:= <<"Expect">> ->
parse_header(Name, Req, Default,
fun (Value) ->
cowboy_http:nonempty_list(Value, fun cowboy_http:expectation/2)
@ -429,8 +429,19 @@ init_stream(TransferDecode, TransferState, ContentDecode, Req) ->
%% for each streamed part, and {done, Req} when it's finished streaming.
-spec stream_body(#http_req{}) -> {ok, binary(), #http_req{}}
| {done, #http_req{}} | {error, atom()}.
stream_body(Req=#http_req{body_state=waiting}) ->
case parse_header('Transfer-Encoding', Req) of
stream_body(Req=#http_req{body_state=waiting,
version=Version, transport=Transport, socket=Socket}) ->
case parse_header(<<"Expect">>, Req) of
{[<<"100-continue">>], Req1} ->
HTTPVer = cowboy_http:version_to_binary(Version),
Transport:send(Socket,
<< HTTPVer/binary, " ", (status(100))/binary, "\r\n\r\n" >>);
{undefined, Req1} ->
ok;
{undefined, _, Req1} ->
ok
end,
case parse_header('Transfer-Encoding', Req1) of
{[<<"chunked">>], Req2} ->
stream_body(Req2#http_req{body_state=
{stream, fun cowboy_http:te_chunked/2, {0, 0},