server.js

/**
 * Module dependencies.
 */

var express = require('express')
  , routes = require('./routes')
  , workspace = require('./routes/workspace')
  , index = require('./routes/index')
  , fs = require('fs')
  , path = require('path')
  , http = require('http')
  , https = require('https')
  , path = require('path')
  , passport = require('passport')
  , flash = require('connect-flash')
  , helpers = require('view-helpers')
  , consolidate = require('consolidate')
  , GithubStrategy = require('passport-github').Strategy;
try {
  var config = require(__dirname + '/config.js');
} catch(e) {
  console.error("No config.js found! Copy and edit config.example.js to config.js!");
  process.exit(1);
}

// Load configurations
// Set the node enviornment variable if not set before
process.env.NODE_ENV = process.env.NODE_ENV || 'development';

var app = express();

app.set('showStackError', true);
// cache=memory or swig dies in NODE_ENV=production
app.locals.cache = 'memory';
// Prettify HTML
app.locals.pretty = true;

app.set('nextFreeWorkspacePort', 5000);

app.engine('html', consolidate.swig);

// Start the app by listening on <port>
var port = process.env.PORT || 3105;

// all environments
app.set('port', port);
app.set('view engine', 'html');
app.set('views', __dirname + '/views');
app.set('baseUrl', config.BASE_URL);
app.set('runningWorkspaces', {});

//Auth
passport.use(new GithubStrategy({
    clientID: config.GITHUB_CLIENT_ID,
    clientSecret: config.GITHUB_CLIENT_SECRET,
    callbackURL: app.get('baseUrl') + ':' + app.get('port') + '/auth/github/callback'
  },
  function(accessToken, refreshToken, profile, done) {
    var username = path.basename(profile.username.toLowerCase());
    if(!fs.existsSync(__dirname + '/workspaces/' + path.basename(username))) {
      if(config.PERMITTED_USERS !== false && config.PERMITTED_USERS.indexOf(username)) return done('Sorry, not allowed :(', null);

      //Okay, that is slightly unintuitive: fs.mkdirSync returns "undefined", when successful..
      if(fs.mkdirSync(__dirname + '/workspaces/' + path.basename(username), '0700') !== undefined) {
        return done("Cannot create user", null);
      } else {
        return done(null, username);
      }
    }
    return done(null, username);
  }
));

//Middlewares
app.use(express.favicon());
// Only use logger for development environment
if (process.env.NODE_ENV === 'development') {
    app.use(express.logger('dev'));
}
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(express.cookieParser('cloud9hub secret'));
app.use(express.session());
// Initialize Passport!  Also use passport.session() middleware, to support
// persistent login sessions (recommended).
app.use(passport.initialize());
app.use(passport.session());
app.use(flash());
// Dynamic helpers
app.use(helpers('Cloud9Hub'));
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));

// development only
if ('development' == app.get('env')) {
  app.use(express.errorHandler());
}

//Auth requests
app.get('/auth/github', passport.authenticate('github'), function(req, res) {});
app.get('/auth/github/callback',
  passport.authenticate('github', { failureRedirect: '/'}),
  function(req, res) {
    res.redirect('/#/dashboard');
  });

app.get('/logout', function(req, res){
  req.logout();
  res.json('OK');
});

// Bootstrap routes
var routes_path = __dirname + '/routes';
var walk = function(path) {
    fs.readdirSync(path).forEach(function(file) {
        var newPath = path + '/' + file;
        var stat = fs.statSync(newPath);
        if (stat.isFile()) {
            if (/(.*)\.(js$|coffee$)/.test(file)) {
                require(newPath)(app, passport);
            }
        // We skip the app/routes/middlewares directory as it is meant to be
        // used and shared by routes as further middlewares and is not a
        // route by itself
        } else if (stat.isDirectory() && file !== 'middlewares') {
            walk(newPath);
        }
    });
};
walk(routes_path);

var server;

if (config.SSL && config.SSL.key && config.SSL.cert) {
  var sslOpts = {
    key: fs.readFileSync(config.SSL.key),
    cert: fs.readFileSync(config.SSL.cert)
  };

  server = https.createServer(sslOpts, app);
} else {
  server = http.createServer(app);
}

server.listen(app.get('port'), function(){
  console.log('Express server listening on port ' + app.get('port'));
});

//Helpers

passport.serializeUser(function(user, done) {
  done(null, user);
});

passport.deserializeUser(function(obj, done) {
  done(null, obj);
});