Setting up ssl in heroku using node.js express and socket.io - node.js

I attempting to create a ssl handled websocket in heroku using express socket.io and node.
I know that heroku handles ssl funky and that in order to not get a H12 request timeout error I need to handle http as well. I have tried a few different methods at approaching the situation and all leave me at a loss. This is my final product, but I get a EADDRINUSE error. I was wondering if anyone has tried this, and if I could see their approach at it, or if anyone could see where I am going wrong in my code.
Please let me know if this is too vague and hopefully I can narrow it down.
class ServerInitializer
constructor: (port, sslport) ->
#port = port
#express = require 'express'
#http = require 'http'
#https = require 'https'
#fs = require 'fs'
#options = {
key: #fs.readFileSync(__dirname+'/../../../private/key.pem'),
cert: #fs.readFileSync(__dirname+'/../../../private/cacert.pem')
}
console.log "STARTING SERVER"
#startExpress()
#startSocketIO()
#startStaticService()
startExpress: ->
console.log " ...preparing express server."
global.app = #express()
app.set 'port', 4001
startSocketIO: ->
console.log " ...preparing http for socket.io"
if process.env.NODE_ENV == 'production'
app.listen app.get 'port'
global.server = #https.createServer(#options, app)
server.listen port
#httpserver = #http.createServer(app)
global.io = require('socket.io').listen(server)
console.log " ...socket.io listening on port #{port}"
startStaticService: ->
console.log " ...preparing to serve static assets"
app.use #express.bodyParser()
app.use #express.static(__dirname + '/static')
console.log "..done."
exports.ServerInitializer = ServerInitializer

Related

Node JS express app not serving index file on Openshift. Works on local

I've done some updates to my node app, deployed to OpenShift and now it wont send the index.html file when live. I updated Express too and fixed all the errors from there...
My Directory structure is as follows:
/Site/
....server.js
....app/
........index.html/
My server looks like this:
var express = require('express');
var app = express();
var path = require('path');
app.use(express.static('app'));
require('./server-stripe.js')(app);
app.get('*', function(req, res) {
res.sendFile(path.resolve(__dirname + 'app/index.html'));
});
var server_port = process.env.OPENSHIFT_NODEJS_PORT || 8080
var server_ip_address = process.env.OPENSHIFT_NODEJS_IP || process.env.OPENSHIFT_INTERNAL_IP ||'127.0.0.1'
app.listen(server_port, server_ip_address, function () {
console.log( "Listening on " + server_ip_address + ", server_port " + server_port )
});
It works fine on my local environment but in Production I get a 503 Service Unavailable.
Any advice would be greatly appreciated! Whits end and all that ;)
Thanks,
Matt
Edit
This is the log:
==> app-root/logs/haproxy.log <==
[WARNING] 009/181452 (443835) : Server express/local-gear is UP (leaving maintenance).
[WARNING] 009/181453 (443835) : Server express/local-gear is DOWN, reason: Layer7 wrong status, code: 404, info: "Not Found", check duration: 36ms. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.
[ALERT] 009/181453 (443835) : proxy 'express' has no server available!
==> app-root/logs/nodejs.log <==
Error: ENOENT, stat '/var/lib/openshift/539976e05004467473000668/app-root/runtime/repo/app/index.html'
I'm reading around the hapoxy stuff though I'm not too clued into it?
Haproxy needs your app to serve something with http 200 OK response code, from root path (http://domain.name). Otherwise it will report your gear is DOWN. You may try checking the app with curl from the app's own gear, see the deployment log for IP and port.
To serve the static files from a selected folder (here "/app") without worrying about type recognition, you can use:
app.use(express.static(__dirname + '/app'));
If the native mime types are not enough, you can extend them:
express.mime.type['ogv'] = 'video/ogg';
Otherwise, see Basic static file server in NodeJS for a 'manual' implementation of static file server.
see: http://expressjs.com/api.html

Socket.IO connection error

I've an application in node.js with socket.io. Everything was running completely fine, but suddenly the browser started to send this error.
failed: Error in connection
establishment:net::ERR_TUNNEL_CONNECTION_FAILED
I didn't make any code change.
The protocol used by socket is ws:// and when I try to use this url in browser
'ws://highgarden-nodejs-91180.sae1.nitrousbox.com/socket.io/?EIO=3&transport=websocket&sid=T9Unec8KbWw-GAL8AAAF'
Chrome returns this error:
Failed to load resource: net::ERR_DISALLOWED_URL_SCHEME
This is a part of the socket setup code:
server.js:
var app = express();
var server = http.createServer(app);
var io = require('socket.io').listen(server);
var port = process.env.PORT || 3000
*------------------------------------------*
// routes ===
var routes = require('./config/routes.js');
var sock = {}
routes(app, passport, sock);
io.sockets.on('connection', sock.update);
// launch ===
server.listen(port);
Thanks advance.
Hi the exception ERR_TUNNEL_CONNECTION_FAILED happens when a tunnel connection through the proxy could not be established. And the ERR_DISALLOWED_URL_SCHEME happens when the scheme of the URL is disallowed.
May you need use it behind the proxy!
Chrome 45.0.2454.101 m says the page has been disabled or moved on the server.

EC2 with socket.io

I have set up an aws micro instance for my node application. I use socket.io as well. I am getting the following error:
GET http://localhost:3000/socket.io/1/?t=1393065240268 net::ERR_CONNECTION_REFUSED
in the console at the moment when the socket connection should be created. Apart from this the node app works. I suspect that the GET should not be towards localhost but towards the address of the server.
Note that on the server side node logs that it served socket.io:
debug - served static content /socket.io.js
Here is a picture of the Security Group of my server:
.
Socket.io setup:
env = process.env.NODE_ENV || 'development',
packageJson = require('../package.json'),
http = require('http'),
express = require('express'),
RedisStore = require('connect-redis')(express),
SessionSockets = require('session.socket.io'),
path = require('path'),
settings = require('./settings'),
expose = require('express-expose')
//Configure server for io and session.socket.io
tmpApp = express(),
tmpServer = http.createServer(tmpApp),
io = require('socket.io').listen(tmpServer),
appCookieParser = express.cookieParser(settings.cookie.secret),
appRedisStore = new RedisStore(),
sessionIO = new SessionSockets(io, appRedisStore, appCookieParser)
global.App = {
app: tmpApp,
server: tmpServer,
port: process.env.PORT || 3000,
sessionIO: sessionIO,
io: io,
start: function() {
var setUp = this.util('setUp'),
socketHandler = require('./socketHandler'),
self = this
setUp.initialize(function(err, waitingGames) {
if (err) {
console.log('error at initializing the application')
process.exit(0)
}
if (!self.started) {
self.started = true
self.server.listen(self.port)
socketHandler()
console.log("Running App Version " + App.version + " on port " + App.port + " in " + App.env + " mode")
}
})
},
...
}
UPDATE
When I changed my port to 80 I get a different error:
XMLHttpRequest cannot load http://localhost/socket.io/1/?t=1393067003774. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://ec2-54-214-136-70.us-west-2.compute.amazonaws.com' is therefore not allowed access.
I found the problem. It was on the client side. I was connecting to localhost. It's a stupid error, but during development you don't pay attention to these details and it seemed natural that socket.io should connect to the root from where you serve your content.
Since I'm using EC2 and after each restart I get different DNS address I've sent to the page where I'm initializing the socket.io the correct the req.headers.host (using express-expose).

Why won't my app establish websocket connection on Heroku?

I am trying to deploy my nodejs app on heroku. I cannot get the websocket connection to establish. I have read everything I could find, tried every example and none of them seem to work for me.
I when I try to open my page "heroku open", nodejs is correctly giving me the html file. However, the websocket 'ws' connection never establishes.
My server.js has these configurations:
var pport = process.env.PORT || 5000;
server.listen(pport, function(err) {
if(!err) { console.log("Listening on port " + pport); }
});
Side Note
When I check "heroku logs", I find that the port my app is running on is a random 5 digit number. ( like 28896, 53365, etc.) It never actually runs on the second half || 5000.
But the thing is, in order for my game.html file to establish a websocket connection, it needs to know what port.
I have tried the following client configurations, none have worked:
1)
var host = location.origin.replace(/^http/, 'ws');
this.connection = new WebSocket(host);
2)
var host = location.origin.replace(/^http/, 'ws');
host = host + ":5000";
this.connection = new WebSocket(host);
3)
this.connection = new WebSocket('ws://infinite-earth-7708.herokuapp.com/');
I have also done what their website said, and attempted to use the following after deploying my app:
heroku config:add NODE_ENV=production
Please advise
Well I figured it out. Here is what you should know:
I did not change my server configurations from my original post.
My client configurations looked like this:
var host = location.origin.replace(/^http/, 'ws');
this.connection = new WebSocket(host);
But here is the kicker.
On the terminal I used the following command:
heroku labs:enable websockets
And voila, it works! I hope this helps someone.

Proxy server with Node.js on Heroku

I'm trying to build a proxy server on with Node.js on Heroku using http-proxy.
Everything works fine locally, but I'm having some troubles on Heroku.
var http = require('http');
var httpProxy = require('http-proxy');
settings = {
"localhost": process.env.LOCALHOST,
"devices": process.env.DEVICES_URI
}
var options = { router: { } }
options.router[settings.localhost + '/devices'] = settings.devices + '/devices';
var port = process.env.PORT || 8000;
var server = httpProxy.createServer(options).listen(port);
As you can see the in the example I set a routing object. What I say is this:
when a request matches '/devices' then route the request to the the device service.
(identified by the DEVICES_URI environmental var)
In development I set
LOCALHOST = 'localhost'
DEVICES_URI = 'http://localhost:3000'
This means that all requests going to localhost:8000/devices are proxied to
localhost:3000/devices which is what I want. All works perfectly.
The problem is in production. It gives me a timeout error repeated multiple times
for every request.
2012-08-23T20:18:20+00:00 heroku[router]: Error H12 (Request timeout) -> GET lelylan-api.herokuapp.com/devices dyno=web.1 queue= wait= service=30000ms status=503 bytes=0
In the production the environment vars are configured to the app names.
LOCALHOST = 'lelylan-api.herokuapp.com'
DEVICES_URI = 'lelylan-devices.herokuapp.com/'
I guess I'm wrong is some configurations, but after the whole day I'm still
not able to figure it out.
Update
I've continued with my tests and I've seen that the proxy is not able to reach the proxied service which totally stops me.
In development I set:
LOCALHOST = 'localhost'
DEVICES_URI = 'lelylan-devices.herokuapp.com/'
If I call http://lelylan-devices.herokuapp.com/devices everything works fine.
If I call localhost:8000/devices (which points to http://lelylan-devices.herokuapp.com/devices) Heroku tells me there is no such an app. I guess the problem is somehow in the routing system.
Here you can access at the source code.
Here the configuration vars for Heroku.
NODE_ENV => production
LOCALHOST => lelylan-api.herokuapp.com
DEVICES_URI => lelylan-devices.herokuapp.com
TYPES_URI => lelylan-types.herokuapp.com
LOCATIONS_URI => lelylan-locations.herokuapp.com
I finally made it work using a slightly modified version proxy-by-url. The final code looks something like this and works fine.
var httpProxy = require('http-proxy');
var port = process.env.PORT || 8000;
var routing = {
'/devices': { port: process.env.DEVICES_PORT || 80, host: process.env.DEVICES_URI }
}
var server = httpProxy.createServer(
require('./lib/uri-middleware')(routing)
).listen(port);
One note to remember. The plugin sets the header HOST to the destination application uri. If you do not do so, Heroku will not recognize the app and will not find it, as its internal routing system seems to be based on the HOST header.
I use http-proxy successfully on Heroku. The first thing I noticed in your log err is the url it is GETting:
GET lelylan-api.herokuapp.com/tdevices
There is a typo... instead of '/devices' it shows '/tdevices'. Before continuing can you confirm this is the actual log message?

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