| Current File : /home/tradevaly/www/node_modules/sockjs/lib/transport.js |
// Generated by CoffeeScript 1.12.7
(function() {
var GenericReceiver, MAP, ResponseReceiver, Session, SockJSConnection, Transport, closeFrame, register, stream, utils, uuidv4,
extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
hasProp = {}.hasOwnProperty;
stream = require('stream');
uuidv4 = require('uuid/v4');
utils = require('./utils');
Transport = (function() {
function Transport() {}
return Transport;
})();
Transport.CONNECTING = 0;
Transport.OPEN = 1;
Transport.CLOSING = 2;
Transport.CLOSED = 3;
closeFrame = function(status, reason) {
return 'c' + JSON.stringify([status, reason]);
};
SockJSConnection = (function(superClass) {
extend(SockJSConnection, superClass);
function SockJSConnection(_session) {
this._session = _session;
this.id = uuidv4();
this.headers = {};
this.prefix = this._session.prefix;
}
SockJSConnection.prototype.toString = function() {
return '<SockJSConnection ' + this.id + '>';
};
SockJSConnection.prototype.write = function(string) {
return this._session.send('' + string);
};
SockJSConnection.prototype.end = function(string) {
if (string) {
this.write(string);
}
this.close();
return null;
};
SockJSConnection.prototype.close = function(code, reason) {
return this._session.close(code, reason);
};
SockJSConnection.prototype.destroy = function() {
this.end();
return this.removeAllListeners();
};
SockJSConnection.prototype.destroySoon = function() {
return this.destroy();
};
return SockJSConnection;
})(stream.Stream);
SockJSConnection.prototype.__defineGetter__('readable', function() {
return this._session.readyState === Transport.OPEN;
});
SockJSConnection.prototype.__defineGetter__('writable', function() {
return this._session.readyState === Transport.OPEN;
});
SockJSConnection.prototype.__defineGetter__('readyState', function() {
return this._session.readyState;
});
MAP = {};
Session = (function() {
function Session(session_id1, server) {
this.session_id = session_id1;
this.heartbeat_delay = server.options.heartbeat_delay;
this.disconnect_delay = server.options.disconnect_delay;
this.prefix = server.options.prefix;
this.send_buffer = [];
this.is_closing = false;
this.readyState = Transport.CONNECTING;
if (this.session_id) {
MAP[this.session_id] = this;
}
this.timeout_cb = (function(_this) {
return function() {
return _this.didTimeout();
};
})(this);
this.to_tref = setTimeout(this.timeout_cb, this.disconnect_delay);
this.connection = new SockJSConnection(this);
this.emit_open = (function(_this) {
return function() {
_this.emit_open = null;
return server.emit('connection', _this.connection);
};
})(this);
}
Session.prototype.register = function(req, recv) {
if (this.recv) {
recv.doSendFrame(closeFrame(2010, "Another connection still open"));
recv.didClose();
return;
}
if (this.to_tref) {
clearTimeout(this.to_tref);
this.to_tref = null;
}
if (this.readyState === Transport.CLOSING) {
this.flushToRecv(recv);
recv.doSendFrame(this.close_frame);
recv.didClose();
this.to_tref = setTimeout(this.timeout_cb, this.disconnect_delay);
return;
}
this.recv = recv;
this.recv.session = this;
this.decorateConnection(req);
if (this.readyState === Transport.CONNECTING) {
this.recv.doSendFrame('o');
this.readyState = Transport.OPEN;
process.nextTick(this.emit_open);
}
if (!this.recv) {
return;
}
this.tryFlush();
};
Session.prototype.decorateConnection = function(req) {
var address, headers, i, key, len, ref, remoteAddress, remotePort, socket, x;
if (!(socket = this.recv.connection)) {
socket = this.recv.response.connection;
}
try {
remoteAddress = socket.remoteAddress;
remotePort = socket.remotePort;
address = socket.address();
} catch (error) {
x = error;
}
if (remoteAddress) {
this.connection.remoteAddress = remoteAddress;
this.connection.remotePort = remotePort;
this.connection.address = address;
}
this.connection.url = req.url;
this.connection.pathname = req.pathname;
this.connection.protocol = this.recv.protocol;
headers = {};
ref = ['referer', 'x-client-ip', 'x-forwarded-for', 'x-forwarded-host', 'x-forwarded-port', 'x-cluster-client-ip', 'via', 'x-real-ip', 'x-forwarded-proto', 'x-ssl', 'dnt', 'host', 'user-agent', 'accept-language'];
for (i = 0, len = ref.length; i < len; i++) {
key = ref[i];
if (req.headers[key]) {
headers[key] = req.headers[key];
}
}
if (headers) {
return this.connection.headers = headers;
}
};
Session.prototype.unregister = function() {
var delay;
delay = this.recv.delay_disconnect;
this.recv.session = null;
this.recv = null;
if (this.to_tref) {
clearTimeout(this.to_tref);
}
if (delay) {
return this.to_tref = setTimeout(this.timeout_cb, this.disconnect_delay);
} else {
return this.timeout_cb();
}
};
Session.prototype.flushToRecv = function(recv) {
var ref, sb;
if (this.send_buffer.length > 0) {
ref = [this.send_buffer, []], sb = ref[0], this.send_buffer = ref[1];
recv.doSendBulk(sb);
return true;
}
return false;
};
Session.prototype.tryFlush = function() {
var x;
if (!this.flushToRecv(this.recv) || !this.to_tref) {
if (this.to_tref) {
clearTimeout(this.to_tref);
}
x = (function(_this) {
return function() {
if (_this.recv) {
_this.to_tref = setTimeout(x, _this.heartbeat_delay);
return _this.recv.heartbeat();
}
};
})(this);
this.to_tref = setTimeout(x, this.heartbeat_delay);
}
};
Session.prototype.didTimeout = function() {
if (this.to_tref) {
clearTimeout(this.to_tref);
this.to_tref = null;
}
if (this.readyState !== Transport.CONNECTING && this.readyState !== Transport.OPEN && this.readyState !== Transport.CLOSING) {
throw Error('INVALID_STATE_ERR');
}
if (this.recv) {
throw Error('RECV_STILL_THERE');
}
this.readyState = Transport.CLOSED;
this.connection.emit('end');
this.connection.emit('close');
this.connection = null;
if (this.session_id) {
delete MAP[this.session_id];
return this.session_id = null;
}
};
Session.prototype.didMessage = function(payload) {
if (this.readyState === Transport.OPEN) {
this.connection.emit('data', payload);
}
};
Session.prototype.send = function(payload) {
if (this.readyState !== Transport.OPEN) {
return false;
}
this.send_buffer.push('' + payload);
if (this.recv) {
this.tryFlush();
}
return true;
};
Session.prototype.close = function(status, reason) {
if (status == null) {
status = 1000;
}
if (reason == null) {
reason = "Normal closure";
}
if (this.readyState !== Transport.OPEN) {
return false;
}
this.readyState = Transport.CLOSING;
this.close_frame = closeFrame(status, reason);
if (this.recv) {
this.recv.doSendFrame(this.close_frame);
if (this.recv) {
this.recv.didClose();
}
if (this.recv) {
this.unregister();
}
}
return true;
};
return Session;
})();
Session.bySessionId = function(session_id) {
if (!session_id) {
return null;
}
return MAP[session_id] || null;
};
register = function(req, server, session_id, receiver) {
var session;
session = Session.bySessionId(session_id);
if (!session) {
session = new Session(session_id, server);
}
session.register(req, receiver);
return session;
};
exports.register = function(req, server, receiver) {
return register(req, server, req.session, receiver);
};
exports.registerNoSession = function(req, server, receiver) {
return register(req, server, void 0, receiver);
};
GenericReceiver = (function() {
function GenericReceiver(thingy) {
this.thingy = thingy;
this.setUp(this.thingy);
}
GenericReceiver.prototype.setUp = function() {
this.thingy_end_cb = (function(_this) {
return function() {
return _this.didAbort();
};
})(this);
this.thingy.addListener('close', this.thingy_end_cb);
return this.thingy.addListener('end', this.thingy_end_cb);
};
GenericReceiver.prototype.tearDown = function() {
this.thingy.removeListener('close', this.thingy_end_cb);
this.thingy.removeListener('end', this.thingy_end_cb);
return this.thingy_end_cb = null;
};
GenericReceiver.prototype.didAbort = function() {
this.delay_disconnect = false;
return this.didClose();
};
GenericReceiver.prototype.didClose = function() {
if (this.thingy) {
this.tearDown(this.thingy);
this.thingy = null;
}
if (this.session) {
return this.session.unregister();
}
};
GenericReceiver.prototype.doSendBulk = function(messages) {
var m, q_msgs;
q_msgs = (function() {
var i, len, results;
results = [];
for (i = 0, len = messages.length; i < len; i++) {
m = messages[i];
results.push(utils.quote(m));
}
return results;
})();
return this.doSendFrame('a' + '[' + q_msgs.join(',') + ']');
};
GenericReceiver.prototype.heartbeat = function() {
return this.doSendFrame('h');
};
return GenericReceiver;
})();
ResponseReceiver = (function(superClass) {
extend(ResponseReceiver, superClass);
ResponseReceiver.prototype.max_response_size = void 0;
ResponseReceiver.prototype.delay_disconnect = true;
function ResponseReceiver(request, response, options) {
var x;
this.request = request;
this.response = response;
this.options = options;
this.curr_response_size = 0;
try {
this.request.connection.setKeepAlive(true, 5000);
} catch (error) {
x = error;
}
ResponseReceiver.__super__.constructor.call(this, this.request.connection);
if (this.max_response_size === void 0) {
this.max_response_size = this.options.response_limit;
}
}
ResponseReceiver.prototype.doSendFrame = function(payload) {
var r, x;
this.curr_response_size += payload.length;
r = false;
try {
this.response.write(payload);
r = true;
} catch (error) {
x = error;
}
if (this.max_response_size && this.curr_response_size >= this.max_response_size) {
this.didClose();
}
return r;
};
ResponseReceiver.prototype.didClose = function() {
var x;
ResponseReceiver.__super__.didClose.apply(this, arguments);
try {
this.response.end();
} catch (error) {
x = error;
}
return this.response = null;
};
return ResponseReceiver;
})(GenericReceiver);
exports.GenericReceiver = GenericReceiver;
exports.Transport = Transport;
exports.Session = Session;
exports.ResponseReceiver = ResponseReceiver;
exports.SockJSConnection = SockJSConnection;
}).call(this);