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node.js call ws.send from controller

i want to send a websocket, using express-ws out from a different controller, not by route and I have the following code in the server.js:
var SocketController = require('./routes/ws.routes');
var app = express();
var server = require('http').createServer(app);
var expressWs = require('express-ws')(app);
app.ws('/', SocketController.socketFunction);
the SocketController looks like that:
exports.socketFunction = function (ws, req) {
ws.on('message', function(msg) {
console.log(msg);
ws.send("hello");
});
}
Is it possible to call the
ws.send()
event from another controller? How do i get the "ws" object?
thanks!

You will have to store your sockets in memory. To access stored sockets from different modules, you can store references for these sockets in a separate module.
For example, you can create a module socketCollection that stores all the active sockets.
socketCollection.js:
exports.socketCollection = [];
You can import this module where you define your web socket server:
var socketCollection = require('./socketCollection');
var SocketController = require('./routes/ws.routes');
var app = express();
var server = require('http').createServer(app);
var expressWs = require('express-ws')(app);
expressWs.getWss().on('connection', function(ws) {
socketCollection.push({
id: 'someRandomSocketId',
socket: ws,
});
});
app.ws('/', SocketController.socketFunction);
Now every time new client connects to the server, it's reference will be saved to 'socketCollection'
You can access these clients from any module by importing this array
var socketCollection = require('./socketCollection');
var ws = findSocket('someRandomSocketId', socketCollection);
var findSocket = function(id, socketCollection) {
var result = socketCollection.filter(function(x){return x.id == id;} );
return result ? result[0].socket : null;
};

Autobahn javascript connection - passing dynamic server

I am using below javascript code to connect to autobahn server. All these times I was using static ip but now the ip is going to be dynamic. How can I pass dynamic server ip and get autobahn connected dynamically?
var connection = new autobahn.Connection({url: 'ws://<ip>:8080/ws', realm: 'realm1'});
var openSession = null;
connection.onopen = function (session) {
openSession = session;
window.JSInterface.isConnected(true);
};
connection.onClose = function(reason, details) {
openSession = null;
window.JSInterface.isConnected(false);
}

There are to options:
Take a domain name instead of an IP e.g ws://autobahn.de:8080/ws
You have a service where you can fetch the ip an then pass it with a variable for example:
var connectionIP = 8.8.8.8;
var connection = new autobahn.Connection({url:'ws://'+connectionIP+':8080/ws', realm: 'realm1'});

How to deploy on windows server : Kurento one to many broadcast

Introduction
I have cloned the project from this git link here
App is running on localhost fine.I am willing to deploy this demo project on windows server where it will run on https://localhost:8443. I have no idea how to deploy this specific demo project, although i have successfully deployed another simple node application on iis.
What can be causing problem, i think from script server.js
var path = require('path');
var url = require('url');
var express = require('express');
var minimist = require('minimist');
var ws = require('ws');
var kurento = require('kurento-client');
var fs = require('fs');
var https = require('https');
var argv = minimist(process.argv.slice(2), {
default: {
as_uri: 'https://localhost:8443/',
ws_uri: 'ws://93.104.213.28:8888/kurento'
}
});
var options =
{
key: fs.readFileSync('keys/server.key'),
cert: fs.readFileSync('keys/server.crt')
};
var app = express();
/*
* Definition of global variables.
*/
var idCounter = 0;
var candidatesQueue = {};
var kurentoClient = null;
var presenter = null;
var viewers = [];
var noPresenterMessage = 'No active presenter. Try again later...';
/*
* Server startup
*/
var asUrl = url.parse(argv.as_uri);
var port = asUrl.port;
var server = https.createServer(options, app).listen(port, function() {
console.log('Kurento Tutorial started');
console.log('Open ' + url.format(asUrl) + ' with a WebRTC capable browser');
});
var wss = new ws.Server({
server : server,
path : '/one2many'
}); .....other code
I have been trying this for 2 days but no luck.Any expert might help.
Thanks for your time.

Get value of remote JS var with Jurassic Script Engine

My remote js file as below
(function(window,document){
var config = {
'placeHolder' : 'content_div'
};
var html = "blaaa blaaa";
})(window,document);
I would likte to get value of html.
I have tried as below but I have got error.
string _JsVars = this._HttpWebRequestRemoteUrl(#"http://www.remotewebpage.com");
var engine = new Jurassic.ScriptEngine();
var result = engine.(_JsVars);
var var1 = engine.GetGlobalValue<string>("html");
MessageBox.Show(var1.ToString());

Keep Firefox add-on localStorage when user removes offline data

I'm using localStorage in my Firefox add-on in this way:
var ioService = Components.classes['#mozilla.org/network/io-service;1'].getService(Components.interfaces.nsIIOService);
var scriptSecManager = Components.classes['#mozilla.org/scriptsecuritymanager;1'].getService(Components.interfaces.nsIScriptSecurityManager);
var domStorageManager = Components.classes['#mozilla.org/dom/storagemanager;1'].getService(Components.interfaces.nsIDOMStorageManager);
var uri = ioService.newURI('http://example.com/addon/', null, null);
var principal = scriptSecManager.getNoAppCodebasePrincipal ? scriptSecManager.getNoAppCodebasePrincipal(uri) : scriptSecManager.getCodebasePrincipal(uri);
var localStorage = domStorageManager.getLocalStorageForPrincipal(principal, '');
All works fine, but when user removes "offline data" storage is cleared. How can i workround it?

Use the preferences service to store the data in the user's profile.
var prefService = Cc["#mozilla.org/preferences-service;1"].getService(Ci.nsIPrefService),
prefs = prefService.getBranch("extensions.YOUREXTENSIONABBREVIATIONHERE.");
var stringValue = "My Name",
booleanValue = true,
numberValue = 55;
prefs.setCharPref("stringParam", stringValue);
prefs.setBoolPref("booleanParam", booleanValue);
prefs.setCharPref("numberParam", ''+numberValue);
prefService.savePrefFile(null); // only to force an immediate save
stringValue = prefs.getCharPref("stringParam");
booleanValue = prefs.getBoolPref("booleanParam");
numberValue = parseInt(prefs.getCharPref("numberParam"), 10);
Put a defaults.js file in your defaults/preferences folder and initialize preferences for a new user. You'll get an error if you try to retrieve a preference that doesn't exist and there's no way to check if it exists.
Look here:
https://developer.mozilla.org/en-US/docs/Adding_preferences_to_an_extension