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more stuff to do with http streaming

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This commit is contained in:
Michelle Bu 2013-01-30 02:25:34 -08:00
parent 51469ad7ff
commit db3982b52d
1 changed files with 30 additions and 14 deletions
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44
lib/server.js
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@ -25,8 +25,7 @@ function PeerServer(options) {
// WebSockets that are opened. // WebSockets that are opened.
this._clients = {}; this._clients = {};
// Requests that are awaiting response. this._timeouts = {};
this._requests = {};
// Initailize WebSocket server handlers. // Initailize WebSocket server handlers.
this._initializeWSS(); this._initializeWSS();
@ -45,10 +44,14 @@ PeerServer.prototype._initializeWSS = function() {
var id = url.parse(socket.upgradeReq.url, true).query.id; var id = url.parse(socket.upgradeReq.url, true).query.id;
// Save the socket for this id. // Save the socket for this id.
if (!!id && !self._clients[id]) { if (!!id && (!self._clients[id] || !(self._clients[id] instanceof WebSocket))) {
if (!(self._clients[id] instanceof WebSocket)) {
clearTimeout(self._timeouts[id]);
self._clients[id].end('socket');
}
self._clients[id] = socket; self._clients[id] = socket;
} else if (!id) { } else if (!id) {
// TODO: error // TODO: assign id.
}; };
socket.on('message', function(data) { socket.on('message', function(data) {
@ -89,29 +92,33 @@ PeerServer.prototype._initializeWSS = function() {
PeerServer.prototype._initializeHTTP = function() { PeerServer.prototype._initializeHTTP = function() {
var self = this; var self = this;
// Server sets up HTTP streaming whether you get or post an ID.
// Retrieve guaranteed random ID. // Retrieve guaranteed random ID.
this._app.get('/id', function(req, res) { this._app.get('/id', function(req, res) {
var clientId = util.randomId(); var clientId = util.randomId();
while (!!self._clients[clientId] || !!self._requests[clientId]) { while (!!self._clients[clientId] || !!self._requests[clientId]) {
clientId = util.randomId(); clientId = util.randomId();
} }
res.send(clientId);
self._startStreaming(res, clientId, function() {
res.write(clientId);
});
}); });
this._app.post('/id', function(req, res) { this._app.post('/id', function(req, res) {
var id = req.body.id; var id = req.body.id;
// Checked in with ID, now waiting for an offer. // Checked in with ID, now waiting for an offer.
self._requests[id, 'offer'] = res; self._startStreaming(res, id);
}); });
this._app.post('/offer', function(req, res) { this._app.post('/offer', function(req, res) {
// TODO: if offer person does not exist, set a timeout for 10s. may need to
// change switch.
var data = req.body.data; var data = req.body.data;
var src = data.src; var src = data.src;
var dst = data.dst; var dst = data.dst;
self._handleTransmission(src, dst, JSON.stringify(data)); self._handleTransmission(src, dst, JSON.stringify(data));
// Now expecting ice from same dst. // Now expecting ice from same dst.
self._requests[src, dst] = res;
self._ice[src, dst] = [];
}); });
this._app.post('/answer', function(req, res) { this._app.post('/answer', function(req, res) {
@ -120,11 +127,24 @@ PeerServer.prototype._initializeHTTP = function() {
var dst = data.dst; var dst = data.dst;
self._handleTransmission(src, dst, JSON.stringify(data)); self._handleTransmission(src, dst, JSON.stringify(data));
// Now expecting ice from same dst. // Now expecting ice from same dst.
self._requests[src, dst] = res;
self._ice[src, dst] = [];
}); });
}; };
/** Saves a streaming response and takes care of timeouts and headers. */
PeerServer.prototype._startStreaming(res, id, write) {
res.writeHead(200, {'Content-Type': 'text/plain'});
if (!!write) {
write();
}
// Save res so we can write to it.
this._clients[id] = res;
// Set timeout to expire.
this._timeouts[id] = setTimeout(function() { res.end('end') }, 10000);
};
// TODO: fix for streaming
/** Handles passing on a message. */ /** Handles passing on a message. */
PeerServer.prototype._handleTransmission = function(src, dst, data, ice) { PeerServer.prototype._handleTransmission = function(src, dst, data, ice) {
var destination = this._clients[dst]; var destination = this._clients[dst];
@ -155,8 +175,4 @@ PeerServer.prototype._handleTransmission = function(src, dst, data, ice) {
} }
} }
exports.PeerServer = PeerServer; exports.PeerServer = PeerServer;
var ps = new PeerServer({ debug: true });