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cowboy/test/websocket_handler.erl

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Erlang
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Initial draft-hixie-thewebsocketprotocol-76 support.
2011-04-14 21:21:17 +02:00
%% 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]).
Separate message and packet handling for websockets Improves the readability of websocket handler code by having two functions: websocket_handle/3 handles the packets received from the socket, removing the tuple construct that was otherwise needed, so only websocket_handle(Data, Req, State) is needed now; websocket_info/3 handles the messages that the websocket handler process received, as websocket_info(Info, Req, State). Both functions return values are handled identically by Cowboy so nothing changes on that end.
2011-07-19 12:12:25 +02:00
-export([websocket_init/3, websocket_handle/3,
websocket_info/3, websocket_terminate/3]).
Initial draft-hixie-thewebsocketprotocol-76 support.
2011-04-14 21:21:17 +02:00
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}.
Add WebSocket drafts 7, 8, 9 and 10 implementation The implementation is only partial for now but should work for all browsers implementing it.
2011-08-23 16:24:02 +02:00
websocket_handle({text, Data}, Req, State) ->
{reply, {text, Data}, Req, State};
websocket_handle(_Frame, Req, State) ->
{ok, Req, State}.
Separate message and packet handling for websockets Improves the readability of websocket handler code by having two functions: websocket_handle/3 handles the packets received from the socket, removing the tuple construct that was otherwise needed, so only websocket_handle(Data, Req, State) is needed now; websocket_info/3 handles the messages that the websocket handler process received, as websocket_info(Info, Req, State). Both functions return values are handled identically by Cowboy so nothing changes on that end.
2011-07-19 12:12:25 +02:00
websocket_info({timeout, _Ref, Msg}, Req, State) ->
Initial draft-hixie-thewebsocketprotocol-76 support.
2011-04-14 21:21:17 +02:00
erlang:start_timer(1000, self(), <<"websocket_handle">>),
Add WebSocket drafts 7, 8, 9 and 10 implementation The implementation is only partial for now but should work for all browsers implementing it.
2011-08-23 16:24:02 +02:00
{reply, {text, Msg}, Req, State};
Separate message and packet handling for websockets Improves the readability of websocket handler code by having two functions: websocket_handle/3 handles the packets received from the socket, removing the tuple construct that was otherwise needed, so only websocket_handle(Data, Req, State) is needed now; websocket_info/3 handles the messages that the websocket handler process received, as websocket_info(Info, Req, State). Both functions return values are handled identically by Cowboy so nothing changes on that end.
2011-07-19 12:12:25 +02:00
websocket_info(_Info, Req, State) ->
{ok, Req, State}.
Initial draft-hixie-thewebsocketprotocol-76 support.
2011-04-14 21:21:17 +02:00
websocket_terminate(_Reason, _Req, _State) ->
ok.
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