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Add Netflux API with WebSocket service V1

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pull/1/head
Yann Flory 9 years ago
parent 3539c71c07
commit 62ba579d4a
2 changed files with 1405 additions and 198 deletions
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1300
www/common/netflux.js
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243
www/common/realtime-input.js
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@ -16,31 +16,22 @@
*/
define([
'/common/messages.js',
// TODO remove in favour of netflux
'/bower_components/reconnectingWebsocket/reconnecting-websocket.js',
'/common/Netflux.js',
'/common/crypto.js',
'/common/toolbar.js',
'/common/sharejs_textarea.js',
'/common/chainpad.js',
'/bower_components/jquery/dist/jquery.min.js',
], function (Messages,/*FIXME*/ ReconnectingWebSocket, Crypto, Toolbar, sharejs) {
], function (Messages, Netflux, Crypto, Toolbar, sharejs) {
var $ = window.jQuery;
var ChainPad = window.ChainPad;
var PARANOIA = true;
var module = { exports: {} };
/**
* If an error is encountered but it is recoverable, do not immediately fail
* but if it keeps firing errors over and over, do fail.
*/
var MAX_RECOVERABLE_ERRORS = 15;
/** Maximum number of milliseconds of lag before we fail the connection. */
var MAX_LAG_BEFORE_DISCONNECT = 20000;
var debug = function (x) { console.log(x); },
warn = function (x) { console.error(x); },
verbose = function (x) { /*console.log(x);*/ };
verbose = function (x) { console.log(x); };
// verbose = function () {}; // comment out to enable verbose logging
// ------------------ Trapping Keyboard Events ---------------------- //
@ -82,67 +73,6 @@ define([
unbind);
};
/* websocket stuff */
var isSocketDisconnected = function (socket, realtime) {
var sock = socket._socket;
return sock.readyState === sock.CLOSING
|| sock.readyState === sock.CLOSED
|| (realtime.getLag().waiting && realtime.getLag().lag > MAX_LAG_BEFORE_DISCONNECT);
};
// this differs from other functions with similar names in that
// you are expected to pass a socket into it.
var checkSocket = function (socket) {
if (isSocketDisconnected(socket, socket.realtime) &&
!socket.intentionallyClosing) {
return true;
} else {
return false;
}
};
// TODO before removing websocket implementation
// bind abort to onLeaving
var abort = function (socket, realtime) {
realtime.abort();
realtime.toolbar.failed();
try { socket._socket.close(); } catch (e) { warn(e); }
};
var handleError = function (socket, realtime, err, docHTML, allMessages) {
// var internalError = createDebugInfo(err, realtime, docHTML, allMessages);
abort(socket, realtime);
};
var makeWebsocket = function (url) {
var socket = new ReconnectingWebSocket(url);
var out = {
onOpen: [],
onClose: [],
onError: [],
onMessage: [],
send: function (msg) { socket.send(msg); },
close: function () { socket.close(); },
_socket: socket
};
var mkHandler = function (name) {
return function (evt) {
for (var i = 0; i < out[name].length; i++) {
if (out[name][i](evt) === false) {
console.log(name +"Handler");
return;
}
}
};
};
socket.onopen = mkHandler('onOpen');
socket.onclose = mkHandler('onClose');
socket.onerror = mkHandler('onError');
socket.onmessage = mkHandler('onMessage');
return out;
};
/* end websocket stuff */
var start = module.exports.start =
function (textarea, websocketUrl, userName, channel, cryptKey, config)
{
@ -155,86 +85,76 @@ define([
var doc = config.doc || null;
// trying to deprecate onRemote, prefer loading it via the conf
var onRemote = config.onRemote || null;
onRemote = config.onRemote || null;
var transformFunction = config.transformFunction || null;
transformFunction = config.transformFunction || null;
var socket;
if (config.socketAdaptor) {
// do netflux stuff
} else {
socket = makeWebsocket(websocketUrl);
}
// define this in case it gets called before the rest of our stuff is ready.
var onEvent = function () { };
var allMessages = [];
var isErrorState = false;
var initializing = true;
var recoverableErrorCount = 0;
var $textarea = $(textarea);
var bump = function () {};
socket.onOpen.push(function (evt) {
if (!initializing) {
console.log("Starting");
// realtime is passed around as an attribute of the socket
// FIXME??
socket.realtime.start();
return;
}
var options = {
signaling: websocketUrl,
topology: 'StarTopologyService',
protocol: 'WebSocketProtocolService',
connector: 'WebSocketService',
openWebChannel: true
};
var realtime;
var realtime = socket.realtime = ChainPad.create(userName,
passwd,
channel,
$(textarea).val(),
{
transformFunction: config.transformFunction
});
// Connect to the WebSocket server
Netflux.join(channel, options).then(function(wc) {
wc.onMessage = onMessage; // On receiving message
wc.onJoining = onJoining; // On user joining the session
if (config.onInit) {
// extend as you wish
config.onInit({
realtime: realtime
// Open a Chainpad session
realtime = createRealtime();
realtime.onUserListChange(function (userList) {
var opt = {userList : userList};
// TODO : onJoining should only a a "newPeer" parameter
wc.onJoining(opt);
});
// On sending message
realtime.onMessage(function(message) {
message = Crypto.encrypt(message, cryptKey);
wc.send(message);
});
}
onEvent = function () {
// This looks broken
if (isErrorState || initializing) { return; }
};
// Check the connection to the channel
//checkConnection(wc);
realtime.onUserListChange(function (userList) {
if (!initializing || userList.indexOf(userName) === -1) {
return;
}
// if we spot ourselves being added to the document, we'll switch
// 'initializing' off because it means we're fully synced.
initializing = false;
bindAllEvents(textarea, doc, onEvent, false);
// execute an onReady callback if one was supplied
// pass an object so we can extend this later
if (config.onReady) {
// extend as you wish
config.onReady({
userList: userList
sharejs.attach(textarea, realtime);
bump = realtime.bumpSharejs;
realtime.start();
}, function(error) {
warn(error);
});
}
var createRealtime = function() {
return ChainPad.create(userName,
passwd,
channel,
$(textarea).val(),
{
transformFunction: config.transformFunction
});
}
var whoami = new RegExp(userName.replace(/[\/\+]/g, function (c) {
return '\\' +c;
}));
// when you receive a message...
socket.onMessage.push(function (evt) {
verbose(evt.data);
if (isErrorState) { return; }
var onMessage = function(user, message) {
message = Crypto.decrypt(message, cryptKey);
var message = Crypto.decrypt(evt.data, cryptKey);
verbose(message);
allMessages.push(message);
if (!initializing) {
@ -257,43 +177,40 @@ define([
}
}
}
});
// when a message is ready to send
realtime.onMessage(function (message) {
if (isErrorState) { return; }
message = Crypto.encrypt(message, cryptKey);
try {
socket.send(message);
} catch (e) {
warn(e);
}
});
var onJoining = function(optionnalData) {
var userList = optionnalData.userList || [];
if (!initializing || userList.indexOf(userName) === -1) {
return;
}
// if we spot ourselves being added to the document, we'll switch
// 'initializing' off because it means we're fully synced.
initializing = false;
// actual socket bindings
socket.onmessage = function (evt) {
for (var i = 0; i < socket.onMessage.length; i++) {
if (socket.onMessage[i](evt) === false) { return; }
// execute an onReady callback if one was supplied
// pass an object so we can extend this later
if (config.onReady) {
config.onReady({
userList: userList
});
}
};
socket.onclose = function (evt) {
for (var i = 0; i < socket.onMessage.length; i++) {
if (socket.onClose[i](evt) === false) { return; }
}
};
socket.onerror = warn;
// TODO confirm that we can rely on netflux API
var socketChecker = setInterval(function () {
if (checkSocket(socket)) {
var checkConnection = function(wc) {
//TODO
/*var socketChecker = setInterval(function () {
if (netflux.checkSocket(realtime)) {
warn("Socket disconnected!");
recoverableErrorCount += 1;
if (recoverableErrorCount >= MAX_RECOVERABLE_ERRORS) {
warn("Giving up!");
abort(socket, realtime);
realtime.abort();
wc.leave()
.then(null, function(err) {
warn(err);
});
if (config.onAbort) {
config.onAbort({
socket: socket
@ -304,19 +221,9 @@ define([
} else {
// it's working as expected, continue
}
}, 200);
bindAllEvents(textarea, doc, onEvent, false);
// attach textarea
// NOTE: should be able to remove the websocket without damaging this
sharejs.attach(textarea, realtime);
realtime.start();
debug('started');
}, 200);*/
}
bump = realtime.bumpSharejs;
});
return {
onEvent: function () {
onEvent();

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