diff options
| -rw-r--r-- | src/cowboy_websocket.erl | 1 | ||||
| -rw-r--r-- | test/ws_SUITE.erl | 695 |
2 files changed, 193 insertions, 503 deletions
diff --git a/src/cowboy_websocket.erl b/src/cowboy_websocket.erl index 7971442..e7736fa 100644 --- a/src/cowboy_websocket.erl +++ b/src/cowboy_websocket.erl @@ -384,6 +384,7 @@ websocket_send(Frame, #state{socket=Socket, transport=Transport, extensions=Exte websocket_send_many([], _) -> ok; websocket_send_many([Frame|Tail], State) -> + %% @todo Send the frames all in one larger TCP packet rather than potentially many small. case websocket_send(Frame, State) of ok -> websocket_send_many(Tail, State); stop -> stop; diff --git a/test/ws_SUITE.erl b/test/ws_SUITE.erl index b4eebf7..dafc402 100644 --- a/test/ws_SUITE.erl +++ b/test/ws_SUITE.erl @@ -16,6 +16,7 @@ -compile(export_all). -import(ct_helper, [config/2]). +-import(ct_helper, [doc/1]). %% ct. @@ -87,6 +88,7 @@ init_dispatch() -> %% Tests. autobahn_fuzzingclient(Config) -> + doc("Autobahn test suite for the Websocket protocol."), Self = self(), spawn_link(fun() -> start_port(Config, Self) end), receive autobahn_exit -> ok end, @@ -113,11 +115,9 @@ receive_infinity(Port, Pid) -> Pid ! autobahn_exit end. -%% We do not support hixie76 anymore. ws0(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), + doc("Websocket version 0 (hixie-76 draft) is no longer supported."), + {ok, Socket} = gen_tcp:connect("localhost", config(port, Config), [binary, {active, false}]), ok = gen_tcp:send(Socket, "GET /ws_echo_timer HTTP/1.1\r\n" "Host: localhost\r\n" @@ -128,73 +128,14 @@ ws0(Config) -> "Sec-Websocket-Key2: 1711 M;4\\74 80<6\r\n" "\r\n"), {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 400, _}, _} - = erlang:decode_packet(http, Handshake, []). - -ws8(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_echo_timer HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 8\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), - ok = gen_tcp:send(Socket, << 16#81, 16#85, 16#37, 16#fa, 16#21, 16#3d, - 16#7f, 16#9f, 16#4d, 16#51, 16#58 >>), - {ok, << 1:1, 0:3, 1:4, 0:1, 5:7, "Hello" >>} - = gen_tcp:recv(Socket, 0, 6000), - {ok, << 1:1, 0:3, 1:4, 0:1, 14:7, "websocket_init" >>} - = gen_tcp:recv(Socket, 0, 6000), - {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} - = gen_tcp:recv(Socket, 0, 6000), - {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} - = gen_tcp:recv(Socket, 0, 6000), - {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} - = gen_tcp:recv(Socket, 0, 6000), - ok = gen_tcp:send(Socket, << 1:1, 0:3, 9:4, 1:1, 0:7, 0:32 >>), %% ping - {ok, << 1:1, 0:3, 10:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), %% pong - ok = gen_tcp:send(Socket, << 1:1, 0:3, 8:4, 1:1, 0:7, 0:32 >>), %% close - {ok, << 1:1, 0:3, 8:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), - {error, closed} = gen_tcp:recv(Socket, 0, 6000), + {ok, {http_response, {1, 1}, 400, _}, _} = erlang:decode_packet(http, Handshake, []), ok. -ws8_init_shutdown(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_init_shutdown HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 8\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 403, "Forbidden"}, _Rest} - = erlang:decode_packet(http, Handshake, []), - {error, closed} = gen_tcp:recv(Socket, 0, 6000), - ok. +%% @todo What about version 7? -ws8_single_bytes(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), +ws8(Config) -> + doc("Websocket version 8 (draft) is supported."), + {ok, Socket} = gen_tcp:connect("localhost", config(port, Config), [binary, {active, false}]), ok = gen_tcp:send(Socket, [ "GET /ws_echo_timer HTTP/1.1\r\n" "Host: localhost\r\n" @@ -205,502 +146,250 @@ ws8_single_bytes(Config) -> "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" "\r\n"]), {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), - ok = gen_tcp:send(Socket, << 16#81 >>), %% send one byte - ok = timer:sleep(100), %% sleep for a period - ok = gen_tcp:send(Socket, << 16#85 >>), %% send another and so on - ok = timer:sleep(100), - ok = gen_tcp:send(Socket, << 16#37 >>), - ok = timer:sleep(100), - ok = gen_tcp:send(Socket, << 16#fa >>), - ok = timer:sleep(100), - ok = gen_tcp:send(Socket, << 16#21 >>), - ok = timer:sleep(100), - ok = gen_tcp:send(Socket, << 16#3d >>), - ok = timer:sleep(100), - ok = gen_tcp:send(Socket, << 16#7f >>), - ok = timer:sleep(100), - ok = gen_tcp:send(Socket, << 16#9f >>), - ok = timer:sleep(100), - ok = gen_tcp:send(Socket, << 16#4d >>), - ok = timer:sleep(100), - ok = gen_tcp:send(Socket, << 16#51 >>), - ok = timer:sleep(100), - ok = gen_tcp:send(Socket, << 16#58 >>), - {ok, << 1:1, 0:3, 1:4, 0:1, 14:7, "websocket_init" >>} - = gen_tcp:recv(Socket, 0, 6000), - {ok, << 1:1, 0:3, 1:4, 0:1, 5:7, "Hello" >>} - = gen_tcp:recv(Socket, 0, 6000), - {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} - = gen_tcp:recv(Socket, 0, 6000), - {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} - = gen_tcp:recv(Socket, 0, 6000), - {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} - = gen_tcp:recv(Socket, 0, 6000), - ok = gen_tcp:send(Socket, << 1:1, 0:3, 9:4, 1:1, 0:7, 0:32 >>), %% ping - {ok, << 1:1, 0:3, 10:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), %% pong - ok = gen_tcp:send(Socket, << 1:1, 0:3, 8:4, 1:1, 0:7, 0:32 >>), %% close - {ok, << 1:1, 0:3, 8:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), - {error, closed} = gen_tcp:recv(Socket, 0, 6000), - ok. + {ok, {http_response, {1, 1}, 101, _}, Rest} = erlang:decode_packet(http, Handshake, []), + [Headers, <<>>] = do_decode_headers(erlang:decode_packet(httph, Rest, []), []), + {_, "Upgrade"} = lists:keyfind('Connection', 1, Headers), + {_, "websocket"} = lists:keyfind('Upgrade', 1, Headers), + {_, "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} = lists:keyfind("sec-websocket-accept", 1, Headers), + do_ws_version(Socket). ws13(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_echo_timer HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 13\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "Upgrade: websocket\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), - %% text - ok = gen_tcp:send(Socket, << 16#81, 16#85, 16#37, 16#fa, 16#21, 16#3d, - 16#7f, 16#9f, 16#4d, 16#51, 16#58 >>), - {ok, << 1:1, 0:3, 1:4, 0:1, 5:7, "Hello" >>} - = gen_tcp:recv(Socket, 0, 6000), - %% binary (empty) + doc("Websocket version 13 (RFC) is supported."), + {ok, Socket, _} = do_handshake("/ws_echo_timer", Config), + do_ws_version(Socket). + +do_ws_version(Socket) -> + %% Masked text hello echoed back clear by the server. + Mask = 16#37fa213d, + MaskedHello = do_mask(<<"Hello">>, Mask, <<>>), + ok = gen_tcp:send(Socket, << 1:1, 0:3, 1:4, 1:1, 5:7, Mask:32, MaskedHello/binary >>), + {ok, << 1:1, 0:3, 1:4, 0:1, 5:7, "Hello" >>} = gen_tcp:recv(Socket, 0, 6000), + %% Empty binary frame echoed back. ok = gen_tcp:send(Socket, << 1:1, 0:3, 2:4, 1:1, 0:7, 0:32 >>), {ok, << 1:1, 0:3, 2:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), - %% binary - ok = gen_tcp:send(Socket, << 16#82, 16#85, 16#37, 16#fa, 16#21, 16#3d, - 16#7f, 16#9f, 16#4d, 16#51, 16#58 >>), - {ok, << 1:1, 0:3, 2:4, 0:1, 5:7, "Hello" >>} - = gen_tcp:recv(Socket, 0, 6000), - %% Receives. - {ok, << 1:1, 0:3, 1:4, 0:1, 14:7, "websocket_init" >>} - = gen_tcp:recv(Socket, 0, 6000), - {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} - = gen_tcp:recv(Socket, 0, 6000), - {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} - = gen_tcp:recv(Socket, 0, 6000), - {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} - = gen_tcp:recv(Socket, 0, 6000), - ok = gen_tcp:send(Socket, << 1:1, 0:3, 9:4, 1:1, 0:7, 0:32 >>), %% ping - {ok, << 1:1, 0:3, 10:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), %% pong - ok = gen_tcp:send(Socket, << 1:1, 0:3, 8:4, 1:1, 0:7, 0:32 >>), %% close + %% Masked binary hello echoed back clear by the server. + ok = gen_tcp:send(Socket, << 1:1, 0:3, 2:4, 1:1, 5:7, Mask:32, MaskedHello/binary >>), + {ok, << 1:1, 0:3, 2:4, 0:1, 5:7, "Hello" >>} = gen_tcp:recv(Socket, 0, 6000), + %% Frames sent on timer by the handler. + {ok, << 1:1, 0:3, 1:4, 0:1, 14:7, "websocket_init" >>} = gen_tcp:recv(Socket, 0, 6000), + {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} = gen_tcp:recv(Socket, 0, 6000), + {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} = gen_tcp:recv(Socket, 0, 6000), + {ok, << 1:1, 0:3, 1:4, 0:1, 16:7, "websocket_handle" >>} = gen_tcp:recv(Socket, 0, 6000), + %% Client-initiated ping/pong. + ok = gen_tcp:send(Socket, << 1:1, 0:3, 9:4, 1:1, 0:7, 0:32 >>), + {ok, << 1:1, 0:3, 10:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), + %% Client-initiated close. + ok = gen_tcp:send(Socket, << 1:1, 0:3, 8:4, 1:1, 0:7, 0:32 >>), {ok, << 1:1, 0:3, 8:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), {error, closed} = gen_tcp:recv(Socket, 0, 6000), ok. -ws_deflate(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}, {nodelay, true}]), +ws_init_shutdown(Config) -> + doc("Handler stops before Websocket handshake."), + {ok, Socket} = gen_tcp:connect("localhost", config(port, Config), [binary, {active, false}]), ok = gen_tcp:send(Socket, [ - "GET /ws_echo HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 8\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "Sec-WebSocket-Extensions: x-webkit-deflate-frame\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), - {"sec-websocket-extensions", "x-webkit-deflate-frame"} - = lists:keyfind("sec-websocket-extensions", 1, Headers), - - Mask = 16#11223344, - Hello = << 242, 72, 205, 201, 201, 7, 0 >>, - MaskedHello = do_mask(Hello, Mask, <<>>), - - % send compressed text frame containing the Hello string - ok = gen_tcp:send(Socket, << 1:1, 1:1, 0:2, 1:4, 1:1, 7:7, Mask:32, - MaskedHello/binary >>), - % receive compressed text frame containing the Hello string - {ok, << 1:1, 1:1, 0:2, 1:4, 0:1, 7:7, Hello/binary >>} - = gen_tcp:recv(Socket, 0, 6000), - - ok = gen_tcp:send(Socket, << 1:1, 0:3, 8:4, 1:1, 0:7, 0:32 >>), %% close - {ok, << 1:1, 0:3, 8:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), - {error, closed} = gen_tcp:recv(Socket, 0, 6000), - ok. - -ws_deflate_chunks(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}, {nodelay, true}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_echo HTTP/1.1\r\n" + "GET /ws_init_shutdown HTTP/1.1\r\n" "Host: localhost\r\n" "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 8\r\n" + "Origin: http://localhost\r\n" + "Sec-WebSocket-Version: 13\r\n" "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "Sec-WebSocket-Extensions: x-webkit-deflate-frame\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), - {"sec-websocket-extensions", "x-webkit-deflate-frame"} - = lists:keyfind("sec-websocket-extensions", 1, Headers), - - Mask = 16#11223344, - Hello = << 242, 72, 205, 201, 201, 7, 0 >>, - MaskedHello = do_mask(Hello, Mask, <<>>), - - % send compressed text frame containing the Hello string - ok = gen_tcp:send(Socket, << 1:1, 1:1, 0:2, 1:4, 1:1, 7:7, Mask:32, - (binary:part(MaskedHello, 0, 4))/binary >>), - ok = timer:sleep(100), - ok = gen_tcp:send(Socket, binary:part(MaskedHello, 4, 3)), - - % receive compressed text frame containing the Hello string - {ok, << 1:1, 1:1, 0:2, 1:4, 0:1, 7:7, Hello/binary >>} - = gen_tcp:recv(Socket, 0, 6000), - - ok = gen_tcp:send(Socket, << 1:1, 0:3, 8:4, 1:1, 0:7, 0:32 >>), %% close - {ok, << 1:1, 0:3, 8:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), - {error, closed} = gen_tcp:recv(Socket, 0, 6000), - ok. - -ws_deflate_fragments(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}, {nodelay, true}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_echo HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 8\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "Sec-WebSocket-Extensions: x-webkit-deflate-frame\r\n" "\r\n"]), {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), - {"sec-websocket-extensions", "x-webkit-deflate-frame"} - = lists:keyfind("sec-websocket-extensions", 1, Headers), - - Mask = 16#11223344, - Hello = << 242, 72, 205, 201, 201, 7, 0 >>, - - % send compressed text frame containing the Hello string - % as 2 separate fragments - ok = gen_tcp:send(Socket, << 0:1, 1:1, 0:2, 1:4, 1:1, 4:7, Mask:32, - (do_mask(binary:part(Hello, 0, 4), Mask, <<>>))/binary >>), - ok = gen_tcp:send(Socket, << 1:1, 1:1, 0:2, 0:4, 1:1, 3:7, Mask:32, - (do_mask(binary:part(Hello, 4, 3), Mask, <<>>))/binary >>), - % receive compressed text frame containing the Hello string - {ok, << 1:1, 1:1, 0:2, 1:4, 0:1, 7:7, Hello/binary >>} - = gen_tcp:recv(Socket, 0, 6000), - - ok = gen_tcp:send(Socket, << 1:1, 0:3, 8:4, 1:1, 0:7, 0:32 >>), %% close - {ok, << 1:1, 0:3, 8:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), - {error, closed} = gen_tcp:recv(Socket, 0, 6000), + {ok, {http_response, {1, 1}, 403, _}, _Rest} = erlang:decode_packet(http, Handshake, []), ok. ws_send_close(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_send_close HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 8\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), + doc("Server-initiated close frame ends the connection."), + {ok, Socket, _} = do_handshake("/ws_send_close", Config), %% We catch all frames at once and check them directly. - {ok, Many} = gen_tcp:recv(Socket, 8, 6000), - << 1:1, 0:3, 1:4, 0:1, 4:7, "send", - 1:1, 0:3, 8:4, 0:8 >> = Many, + {ok, << + 1:1, 0:3, 1:4, 0:1, 4:7, "send", + 1:1, 0:3, 8:4, 0:8 >>} = gen_tcp:recv(Socket, 8, 6000), {error, closed} = gen_tcp:recv(Socket, 0, 6000), ok. ws_send_close_payload(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_send_close_payload HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 8\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), + doc("Server-initiated close frame with payload ends the connection."), + {ok, Socket, _} = do_handshake("/ws_send_close_payload", Config), %% We catch all frames at once and check them directly. - {ok, Many} = gen_tcp:recv(Socket, 20, 6000), - << 1:1, 0:3, 1:4, 0:1, 4:7, "send", - 1:1, 0:3, 8:4, 0:1, 12:7, 1001:16, "some text!" >> = Many, + {ok, << + 1:1, 0:3, 1:4, 0:1, 4:7, "send", + 1:1, 0:3, 8:4, 0:1, 12:7, 1001:16, "some text!" >>} = gen_tcp:recv(Socket, 20, 6000), {error, closed} = gen_tcp:recv(Socket, 0, 6000), ok. ws_send_many(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_send_many HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 8\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), + doc("Server sends many frames in a single reply."), + {ok, Socket, _} = do_handshake("/ws_send_many", Config), %% We catch all frames at once and check them directly. - {ok, Many} = gen_tcp:recv(Socket, 18, 6000), - << 1:1, 0:3, 1:4, 0:1, 3:7, "one", + {ok, << + 1:1, 0:3, 1:4, 0:1, 3:7, "one", 1:1, 0:3, 1:4, 0:1, 3:7, "two", - 1:1, 0:3, 1:4, 0:1, 6:7, "seven!" >> = Many, - ok = gen_tcp:send(Socket, << 1:1, 0:3, 8:4, 1:1, 0:7, 0:32 >>), %% close - {ok, << 1:1, 0:3, 8:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), - {error, closed} = gen_tcp:recv(Socket, 0, 6000), + 1:1, 0:3, 1:4, 0:1, 6:7, "seven!" >>} = gen_tcp:recv(Socket, 18, 6000), + ok. + +ws_single_bytes(Config) -> + doc("Client sends a text frame one byte at a time."), + {ok, Socket, _} = do_handshake("/ws_echo", Config), + %% We sleep between sends to make sure only one byte is sent. + ok = gen_tcp:send(Socket, << 16#81 >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#85 >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#37 >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#fa >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#21 >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#3d >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#7f >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#9f >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#4d >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#51 >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#58 >>), + {ok, << 1:1, 0:3, 1:4, 0:1, 5:7, "Hello" >>} = gen_tcp:recv(Socket, 0, 6000), ok. ws_subprotocol(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_subprotocol HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 13\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "Sec-WebSocket-Protocol: foo, bar\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), - {"sec-websocket-protocol", "foo"} - = lists:keyfind("sec-websocket-protocol", 1, Headers), - {ok, << 1:1, 0:3, 8:4, 0:1, 2:7, 1000:16 >>} = gen_tcp:recv(Socket, 0, 6000), - {error, closed} = gen_tcp:recv(Socket, 0, 6000), + doc("Websocket sub-protocol negotiation."), + {ok, _, Headers} = do_handshake("/ws_subprotocol", + "Sec-WebSocket-Protocol: foo, bar\r\n", Config), + {_, "foo"} = lists:keyfind("sec-websocket-protocol", 1, Headers), ok. ws_text_fragments(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_echo HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 8\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), - - ok = gen_tcp:send(Socket, [ - << 0:1, 0:3, 1:4, 1:1, 5:7 >>, - << 16#37 >>, << 16#fa >>, << 16#21 >>, << 16#3d >>, << 16#7f >>, - << 16#9f >>, << 16#4d >>, << 16#51 >>, << 16#58 >>]), - ok = gen_tcp:send(Socket, [ - << 1:1, 0:3, 0:4, 1:1, 5:7 >>, - << 16#37 >>, << 16#fa >>, << 16#21 >>, << 16#3d >>, << 16#7f >>, - << 16#9f >>, << 16#4d >>, << 16#51 >>, << 16#58 >>]), - {ok, << 1:1, 0:3, 1:4, 0:1, 10:7, "HelloHello" >>} - = gen_tcp:recv(Socket, 0, 6000), - + doc("Client sends fragmented text frames."), + {ok, Socket, _} = do_handshake("/ws_echo", Config), + %% Send two "Hello" over two fragments and two sends. + Mask = 16#37fa213d, + MaskedHello = do_mask(<<"Hello">>, Mask, <<>>), + ok = gen_tcp:send(Socket, << 0:1, 0:3, 1:4, 1:1, 5:7, Mask:32, MaskedHello/binary >>), + ok = gen_tcp:send(Socket, << 1:1, 0:3, 0:4, 1:1, 5:7, Mask:32, MaskedHello/binary >>), + {ok, << 1:1, 0:3, 1:4, 0:1, 10:7, "HelloHello" >>} = gen_tcp:recv(Socket, 0, 6000), + %% Send three "Hello" over three fragments and one send. ok = gen_tcp:send(Socket, [ - %% #1 - << 0:1, 0:3, 1:4, 1:1, 5:7 >>, - << 16#37 >>, << 16#fa >>, << 16#21 >>, << 16#3d >>, << 16#7f >>, - << 16#9f >>, << 16#4d >>, << 16#51 >>, << 16#58 >>, - %% #2 - << 0:1, 0:3, 0:4, 1:1, 5:7 >>, - << 16#37 >>, << 16#fa >>, << 16#21 >>, << 16#3d >>, << 16#7f >>, - << 16#9f >>, << 16#4d >>, << 16#51 >>, << 16#58 >>, - %% #3 - << 1:1, 0:3, 0:4, 1:1, 5:7 >>, - << 16#37 >>, << 16#fa >>, << 16#21 >>, << 16#3d >>, << 16#7f >>, - << 16#9f >>, << 16#4d >>, << 16#51 >>, << 16#58 >>]), - {ok, << 1:1, 0:3, 1:4, 0:1, 15:7, "HelloHelloHello" >>} - = gen_tcp:recv(Socket, 0, 6000), - ok = gen_tcp:send(Socket, << 1:1, 0:3, 8:4, 1:1, 0:7, 0:32 >>), %% close - {ok, << 1:1, 0:3, 8:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), - {error, closed} = gen_tcp:recv(Socket, 0, 6000), + << 0:1, 0:3, 1:4, 1:1, 5:7, Mask:32, MaskedHello/binary >>, + << 0:1, 0:3, 0:4, 1:1, 5:7, Mask:32, MaskedHello/binary >>, + << 1:1, 0:3, 0:4, 1:1, 5:7, Mask:32, MaskedHello/binary >>]), + {ok, << 1:1, 0:3, 1:4, 0:1, 15:7, "HelloHelloHello" >>} = gen_tcp:recv(Socket, 0, 6000), ok. ws_timeout_hibernate(Config) -> - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_timeout_hibernate HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 8\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), + doc("Server-initiated close on timeout with hibernating process."), + {ok, Socket, _} = do_handshake("/ws_timeout_hibernate", Config), {ok, << 1:1, 0:3, 8:4, 0:1, 2:7, 1000:16 >>} = gen_tcp:recv(Socket, 0, 6000), {error, closed} = gen_tcp:recv(Socket, 0, 6000), ok. -ws_timeout_cancel(Config) -> - %% Erlang messages to a socket should not cancel the timeout - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_timeout_cancel HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-WebSocket-Version: 8\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), +ws_timeout_no_cancel(Config) -> + doc("Server-initiated timeout is not influenced by reception of Erlang messages."), + {ok, Socket, _} = do_handshake("/ws_timeout_cancel", Config), {ok, << 1:1, 0:3, 8:4, 0:1, 2:7, 1000:16 >>} = gen_tcp:recv(Socket, 0, 6000), {error, closed} = gen_tcp:recv(Socket, 0, 6000), ok. ws_timeout_reset(Config) -> - %% Erlang messages across a socket should reset the timeout - {port, Port} = lists:keyfind(port, 1, Config), - {ok, Socket} = gen_tcp:connect("localhost", Port, - [binary, {active, false}, {packet, raw}]), - ok = gen_tcp:send(Socket, [ - "GET /ws_timeout_cancel HTTP/1.1\r\n" - "Host: localhost\r\n" - "Connection: Upgrade\r\n" - "Upgrade: websocket\r\n" - "Sec-WebSocket-Origin: http://localhost\r\n" - "Sec-Websocket-Version: 13\r\n" - "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" - "\r\n"]), - {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), - {ok, {http_response, {1, 1}, 101, "Switching Protocols"}, Rest} - = erlang:decode_packet(http, Handshake, []), - [Headers, <<>>] = do_decode_headers( - erlang:decode_packet(httph, Rest, []), []), - {'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers), - {'Upgrade', "websocket"} = lists:keyfind('Upgrade', 1, Headers), - {"sec-websocket-accept", "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} - = lists:keyfind("sec-websocket-accept", 1, Headers), + doc("Server-initiated timeout is reset when client sends more data."), + {ok, Socket, _} = do_handshake("/ws_timeout_cancel", Config), + %% Send and receive back a frame a few times. + Mask = 16#37fa213d, + MaskedHello = do_mask(<<"Hello">>, Mask, <<>>), [begin - ok = gen_tcp:send(Socket, << 16#81, 16#85, 16#37, 16#fa, 16#21, 16#3d, - 16#7f, 16#9f, 16#4d, 16#51, 16#58 >>), - {ok, << 1:1, 0:3, 1:4, 0:1, 5:7, "Hello" >>} - = gen_tcp:recv(Socket, 0, 6000), - ok = timer:sleep(500) + ok = gen_tcp:send(Socket, << 1:1, 0:3, 1:4, 1:1, 5:7, Mask:32, MaskedHello/binary >>), + {ok, << 1:1, 0:3, 1:4, 0:1, 5:7, "Hello" >>} = gen_tcp:recv(Socket, 0, 6000), + timer:sleep(500) end || _ <- [1, 2, 3, 4]], + %% Timeout will occur after we stop sending data. {ok, << 1:1, 0:3, 8:4, 0:1, 2:7, 1000:16 >>} = gen_tcp:recv(Socket, 0, 6000), {error, closed} = gen_tcp:recv(Socket, 0, 6000), ok. +ws_webkit_deflate(Config) -> + doc("x-webkit-deflate-frame compression."), + {ok, Socket, Headers} = do_handshake("/ws_echo", + "Sec-WebSocket-Extensions: x-webkit-deflate-frame\r\n", Config), + {_, "x-webkit-deflate-frame"} = lists:keyfind("sec-websocket-extensions", 1, Headers), + %% Send and receive a compressed "Hello" frame. + Mask = 16#11223344, + CompressedHello = << 242, 72, 205, 201, 201, 7, 0 >>, + MaskedHello = do_mask(CompressedHello, Mask, <<>>), + ok = gen_tcp:send(Socket, << 1:1, 1:1, 0:2, 1:4, 1:1, 7:7, Mask:32, MaskedHello/binary >>), + {ok, << 1:1, 1:1, 0:2, 1:4, 0:1, 7:7, CompressedHello/binary >>} = gen_tcp:recv(Socket, 0, 6000), + %% Client-initiated close. + ok = gen_tcp:send(Socket, << 1:1, 0:3, 8:4, 1:1, 0:7, 0:32 >>), + {ok, << 1:1, 0:3, 8:4, 0:8 >>} = gen_tcp:recv(Socket, 0, 6000), + {error, closed} = gen_tcp:recv(Socket, 0, 6000), + ok. + +ws_webkit_deflate_fragments(Config) -> + doc("Client sends an x-webkit-deflate-frame compressed and fragmented text frame."), + {ok, Socket, Headers} = do_handshake("/ws_echo", + "Sec-WebSocket-Extensions: x-webkit-deflate-frame\r\n", Config), + {_, "x-webkit-deflate-frame"} = lists:keyfind("sec-websocket-extensions", 1, Headers), + %% Send a compressed "Hello" over two fragments and two sends. + Mask = 16#11223344, + CompressedHello = << 242, 72, 205, 201, 201, 7, 0 >>, + MaskedHello1 = do_mask(binary:part(CompressedHello, 0, 4), Mask, <<>>), + MaskedHello2 = do_mask(binary:part(CompressedHello, 4, 3), Mask, <<>>), + ok = gen_tcp:send(Socket, << 0:1, 1:1, 0:2, 1:4, 1:1, 4:7, Mask:32, MaskedHello1/binary >>), + ok = gen_tcp:send(Socket, << 1:1, 1:1, 0:2, 0:4, 1:1, 3:7, Mask:32, MaskedHello2/binary >>), + {ok, << 1:1, 1:1, 0:2, 1:4, 0:1, 7:7, CompressedHello/binary >>} = gen_tcp:recv(Socket, 0, 6000), + ok. + +ws_webkit_deflate_single_bytes(Config) -> + doc("Client sends an x-webkit-deflate-frame compressed text frame one byte at a time."), + {ok, Socket, Headers} = do_handshake("/ws_echo", + "Sec-WebSocket-Extensions: x-webkit-deflate-frame\r\n", Config), + {_, "x-webkit-deflate-frame"} = lists:keyfind("sec-websocket-extensions", 1, Headers), + %% We sleep between sends to make sure only one byte is sent. + Mask = 16#11223344, + CompressedHello = << 242, 72, 205, 201, 201, 7, 0 >>, + MaskedHello = do_mask(CompressedHello, Mask, <<>>), + ok = gen_tcp:send(Socket, << 16#c1 >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#87 >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#11 >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#22 >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#33 >>), timer:sleep(100), + ok = gen_tcp:send(Socket, << 16#44 >>), timer:sleep(100), + ok = gen_tcp:send(Socket, [binary:at(MaskedHello, 0)]), timer:sleep(100), + ok = gen_tcp:send(Socket, [binary:at(MaskedHello, 1)]), timer:sleep(100), + ok = gen_tcp:send(Socket, [binary:at(MaskedHello, 2)]), timer:sleep(100), + ok = gen_tcp:send(Socket, [binary:at(MaskedHello, 3)]), timer:sleep(100), + ok = gen_tcp:send(Socket, [binary:at(MaskedHello, 4)]), timer:sleep(100), + ok = gen_tcp:send(Socket, [binary:at(MaskedHello, 5)]), timer:sleep(100), + ok = gen_tcp:send(Socket, [binary:at(MaskedHello, 6)]), + {ok, << 1:1, 1:1, 0:2, 1:4, 0:1, 7:7, CompressedHello/binary >>} = gen_tcp:recv(Socket, 0, 6000), + ok. + %% Internal. +do_handshake(Path, Config) -> + do_handshake(Path, "", Config). + +do_handshake(Path, ExtraHeaders, Config) -> + {ok, Socket} = gen_tcp:connect("localhost", config(port, Config), + [binary, {active, false}]), + ok = gen_tcp:send(Socket, [ + "GET ", Path, " HTTP/1.1\r\n" + "Host: localhost\r\n" + "Connection: Upgrade\r\n" + "Origin: http://localhost\r\n" + "Sec-WebSocket-Version: 13\r\n" + "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n" + "Upgrade: websocket\r\n", + ExtraHeaders, + "\r\n"]), + {ok, Handshake} = gen_tcp:recv(Socket, 0, 6000), + {ok, {http_response, {1, 1}, 101, _}, Rest} = erlang:decode_packet(http, Handshake, []), + [Headers, <<>>] = do_decode_headers(erlang:decode_packet(httph, Rest, []), []), + {_, "Upgrade"} = lists:keyfind('Connection', 1, Headers), + {_, "websocket"} = lists:keyfind('Upgrade', 1, Headers), + {_, "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="} = lists:keyfind("sec-websocket-accept", 1, Headers), + {ok, Socket, Headers}. + do_decode_headers({ok, http_eoh, Rest}, Acc) -> [Acc, Rest]; do_decode_headers({ok, {http_header, _I, Key, _R, Value}, Rest}, Acc) -> F = fun(S) when is_atom(S) -> S; (S) -> string:to_lower(S) end, - do_decode_headers(erlang:decode_packet(httph, Rest, []), - [{F(Key), Value}|Acc]). + do_decode_headers(erlang:decode_packet(httph, Rest, []), [{F(Key), Value}|Acc]). do_mask(<<>>, _, Acc) -> Acc; |