Initial draft-hixie-thewebsocketprotocol-76 support.

test/http_SUITE.erl

@@ -19,7 +19,7 @@
 -export([all/0, groups/0, init_per_suite/1, end_per_suite/1,
 	init_per_group/2, end_per_group/2]). %% ct.
 -export([headers_dupe/1, pipeline/1, raw/1]). %% http.
--export([http_200/1, http_404/1]). %% http and https.
+-export([http_200/1, http_404/1, websocket/1]). %% http and https.
 
 %% ct.
 
@@ -28,7 +28,7 @@ all() ->
 
 groups() ->
 	BaseTests = [http_200, http_404],
-	[{http, [], [headers_dupe, pipeline, raw] ++ BaseTests},
+	[{http, [], [headers_dupe, pipeline, raw, websocket] ++ BaseTests},
 	{https, [], BaseTests}].
 
 init_per_suite(Config) ->
@@ -77,6 +77,7 @@ end_per_group(https, _Config) ->
 init_http_dispatch() ->
 	[
 		{["localhost"], [
+			{["websocket"], websocket_handler, []},
 			{["headers", "dupe"], http_handler,
 				[{headers, [{"Connection", "close"}]}]},
 			{[], http_handler, []}
@@ -92,8 +93,8 @@ headers_dupe(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 /headers/dupe HTTP/1.1\r\nHost: localhost\r\nConnection: keep-alive\r\n\r\n"),
+	ok = gen_tcp:send(Socket, "GET /headers/dupe HTTP/1.1\r\n"
+		"Host: localhost\r\nConnection: keep-alive\r\n\r\n"),
 	{ok, Data} = gen_tcp:recv(Socket, 0, 6000),
 	{_Start, _Length} = binary:match(Data, <<"Connection: close">>),
 	nomatch = binary:match(Data, <<"Connection: keep-alive">>),
@@ -160,6 +161,48 @@ raw(Config) ->
 	[{Packet, StatusCode} = raw_req(Packet, Config)
 		|| {Packet, StatusCode} <- Tests].
 
+websocket(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 /websocket HTTP/1.1\r\n"
+		"Host: localhost\r\n"
+		"Connection: Upgrade\r\n"
+		"Upgrade: WebSocket\r\n"
+		"Origin: http://localhost\r\n"
+		"Sec-Websocket-Key1: Y\" 4 1Lj!957b8@0H756!i\r\n"
+		"Sec-Websocket-Key2: 1711 M;4\\74  80<6\r\n"
+		"\r\n", <<15,245,8,18,2,204,133,33>>]),
+	{ok, Handshake} = gen_tcp:recv(Socket, 0, 6000),
+	{ok, {http_response, {1, 1}, 101, "WebSocket Protocol Handshake"}, Rest}
+		= erlang:decode_packet(http, Handshake, []),
+	[Headers, Body] = websocket_headers(erlang:decode_packet(httph, Rest, []), []),
+	{'Connection', "Upgrade"} = lists:keyfind('Connection', 1, Headers),
+	{'Upgrade', "WebSocket"} = lists:keyfind('Upgrade', 1, Headers),
+	{"sec-websocket-location", "ws://localhost/websocket"}
+		= lists:keyfind("sec-websocket-location", 1, Headers),
+	{"sec-websocket-origin", "http://localhost"}
+		= lists:keyfind("sec-websocket-origin", 1, Headers),
+	<<169,244,191,103,146,33,149,59,74,104,67,5,99,118,171,236>> = Body,
+	ok = gen_tcp:send(Socket, << 0, "client_msg", 255 >>),
+	{ok, << 0, "client_msg", 255 >>} = gen_tcp:recv(Socket, 0, 6000),
+	{ok, << 0, "websocket_init", 255 >>} = gen_tcp:recv(Socket, 0, 6000),
+	{ok, << 0, "websocket_handle", 255 >>} = gen_tcp:recv(Socket, 0, 6000),
+	{ok, << 0, "websocket_handle", 255 >>} = gen_tcp:recv(Socket, 0, 6000),
+	{ok, << 0, "websocket_handle", 255 >>} = gen_tcp:recv(Socket, 0, 6000),
+	ok = gen_tcp:send(Socket, << 255, 0 >>),
+	{ok, << 255, 0 >>} = gen_tcp:recv(Socket, 0, 6000),
+	{error, closed} = gen_tcp:recv(Socket, 0, 6000),
+	ok.
+
+websocket_headers({ok, http_eoh, Rest}, Acc) ->
+	[Acc, Rest];
+websocket_headers({ok, {http_header, _I, Key, _R, Value}, Rest}, Acc) ->
+	F = fun(S) when is_atom(S) -> S; (S) -> string:to_lower(S) end,
+	websocket_headers(erlang:decode_packet(httph, Rest, []),
+		[{F(Key), Value}|Acc]).
+
 %% http and https.
 
 build_url(Path, Config) ->

test/websocket_handler.erl

@@ -0,0 +1,29 @@
+%% Feel free to use, reuse and abuse the code in this file.
+
+-module(websocket_handler).
+-behaviour(cowboy_http_handler).
+-behaviour(cowboy_http_websocket_handler).
+-export([init/3, handle/2, terminate/2]).
+-export([websocket_init/3, websocket_handle/3, websocket_terminate/3]).
+
+init(_Any, _Req, _Opts) ->
+	{upgrade, protocol, cowboy_http_websocket}.
+
+handle(_Req, _State) ->
+	exit(badarg).
+
+terminate(_Req, _State) ->
+	exit(badarg).
+
+websocket_init(_TransportName, Req, _Opts) ->
+	erlang:start_timer(1000, self(), <<"websocket_init">>),
+	{ok, Req, undefined}.
+
+websocket_handle({timeout, _Ref, Msg}, Req, State) ->
+	erlang:start_timer(1000, self(), <<"websocket_handle">>),
+	{reply, Msg, Req, State};
+websocket_handle({websocket, Data}, Req, State) ->
+	{reply, Data, Req, State}.
+
+websocket_terminate(_Reason, _Req, _State) ->
+	ok.