112 lines
3 KiB
JavaScript
112 lines
3 KiB
JavaScript
var uuid = require('node-uuid');
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module.exports = function(io, stunservers) {
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var
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activePeople = 0;
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function describeRoom(name) {
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var clients = io.sockets.clients(name);
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var result = {
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clients: {}
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};
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clients.forEach(function (client) {
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result.clients[client.id] = client.resources;
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});
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return result;
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}
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function safeCb(cb) {
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if (typeof cb === 'function') {
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return cb;
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} else {
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return function () {};
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}
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}
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io.sockets.on('connection', function (client) {
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activePeople += 1;
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client.resources = {
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screen: false,
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video: true,
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audio: false
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};
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// pass a message to another id
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client.on('message', function (details) {
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if (!details) return;
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var otherClient = io.sockets.sockets[details.to];
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if (!otherClient) return;
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details.from = client.id;
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otherClient.emit('message', details);
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});
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client.on('shareScreen', function () {
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client.resources.screen = true;
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});
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client.on('unshareScreen', function (type) {
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client.resources.screen = false;
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removeFeed('screen');
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});
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client.on('join', join);
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function removeFeed(type) {
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if (client.room) {
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io.sockets.in(client.room).emit('remove', {
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id: client.id,
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type: type
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});
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if (!type) {
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client.leave(client.room);
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client.room = undefined;
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}
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}
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}
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function join(name, cb) {
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// sanity check
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if (typeof name !== 'string') return;
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// leave any existing rooms
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removeFeed();
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safeCb(cb)(null, describeRoom(name));
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client.join(name);
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client.room = name;
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}
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// we don't want to pass "leave" directly because the
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// event type string of "socket end" gets passed too.
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client.on('disconnect', function () {
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removeFeed();
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activePeople -= 1;
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});
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client.on('leave', function () {
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removeFeed();
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});
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client.on('create', function (name, cb) {
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if (arguments.length == 2) {
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cb = (typeof cb == 'function') ? cb : function () {};
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name = name || uuid();
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} else {
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cb = name;
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name = uuid();
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}
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// check if exists
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if (io.sockets.clients(name).length) {
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safeCb(cb)('taken');
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} else {
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join(name);
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safeCb(cb)(null, name);
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}
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});
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// tell client about stun and turn servers and generate nonces
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client.emit('stunservers', stunservers || []);
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});
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};
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