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Add support for the webkit deflate frame extension

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This commit is contained in:
Ali Sabil 2013-04-15 18:36:33 +02:00
parent 47396211cf
commit a63faff35e
4 changed files with 288 additions and 97 deletions
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57
test/ws_SUITE.erl
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@ -30,6 +30,7 @@
-export([ws8_init_shutdown/1]).
-export([ws8_single_bytes/1]).
-export([ws13/1]).
-export([ws_deflate/1]).
-export([ws_send_close/1]).
-export([ws_send_close_payload/1]).
-export([ws_send_many/1]).
@ -51,6 +52,7 @@ groups() ->
ws8_init_shutdown,
ws8_single_bytes,
ws13,
ws_deflate,
ws_send_close,
ws_send_close_payload,
ws_send_many,
@ -76,7 +78,8 @@ end_per_suite(_Config) ->
init_per_group(ws, Config) ->
cowboy:start_http(ws, 100, [{port, 0}], [
{env, [{dispatch, init_dispatch()}]}
{env, [{dispatch, init_dispatch()}]},
{compress, true}
]),
Port = ranch:get_port(ws),
[{port, Port}|Config].
@ -309,6 +312,58 @@ ws13(Config) ->
{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}]),
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, <<>>] = websocket_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),
% send uncompressed text frame containing the Hello string
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 >>),
% receive compressed text frame containing the Hello string
{ok, << 1:1, 1:1, 0:2, 1:4, 0:1, 7:7, 242, 72, 205, 201, 201, 7, 0 >>}
= gen_tcp:recv(Socket, 0, 6000),
% send uncompressed text frame containing the HelloHello string
% as 2 separate fragments
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 >>]),
% receive compressed text frame containing the HelloHello string
{ok, << 1:1, 1:1, 0:2, 1:4, 0:1, 5:7, 242, 128, 19, 0, 0 >>}
= 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_send_close(Config) ->
{port, Port} = lists:keyfind(port, 1, Config),
{ok, Socket} = gen_tcp:connect("localhost", Port,