airfield.js

#!/usr/bin/env node

/**
 * Module dependencies.
 */

var settings = require(process.env.NODE_CONFIG || './settings').settings;

var express = require('express')
  , RedisStore = require('connect-redis')(express.session)
  , routes = require('./routes')
  , http = require('http')
  , path = require('path');

var async = require('async');
var redis = require('redis');
var db = redis.createClient(process.env.REDIS_PORT || settings.REDIS_PORT, process.env.REDIS_HOST || settings.REDIS_HOST);

var request = require('request');

var cons = require('consolidate');
var swig = require('swig');

var app = express();



app.configure(function(){
  app.set('port', process.env.PORT || settings.port);
  app.set('views', __dirname + '/views');
  console.log(__dirname);
  app.engine('.html', cons.swig);
  app.set('view engine', 'html');
// app.set('view options', layout: false);
  app.use(express.favicon());
  app.use(express.logger('dev'));
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(express.cookieParser(settings.cookieSecret));

  app.use(express.session({secret: settings.sessionSecret}));
  app.use(app.router);
  app.use(express.static(path.join(__dirname, 'public')));
});

app.configure('development', function(){
  app.use(express.errorHandler());
});

app.get('/', routes.index);


// Authentication mechanism
function checkAuth(req, res, next){
    if (!req.session.user_id) {
        res.send('You are not authorized to view this page');
    } else {
      next();
    }
}

app.get('/login', function(req, res){
	res.render('login.html', {title:'Login'});
});

app.post('/login', function(req, res){
	var post = req.body;
	if(post.user == settings.username && post.password == settings.password){
		req.session.user_id = post.user;
		res.redirect('/routes');
	}else{
		res.send("Your login credientials are invalid!");
	}
});

app.get('/logout', function(req, res){
	delete req.session.user_id;
	res.redirect("/login");
});

//Render few variables of routes
app.get('/routes', checkAuth, function(req, res){
	res.render("routes.html", {title: 'Routes'});
});

// Get all routes from redis [ajax]
app.get('/ajax/routes', checkAuth, function(req, res){
	db.keys('frontend:*', function(err, routes){
		var routelist = [];
		async.forEach(routes, function(item, cb){
			db.lrange(item, 0, -1, function(err, items){
				if(err){
					cb(err);
				}
				var route = {name: item, items: items};
				routelist.push(route);
				cb();
			});
		}, function(err){
			if(err){
				console.log(err);
			}
			//console.log(routelist);
			res.send(routelist);
		});		
	});
});

// Saves route [ajax]
app.post('/ajax/save', checkAuth, function(req, res){
	//console.log(req.body.data);
	var data = req.body.data;
	db.del(data.route, function(err){
		db.rpush(data.route, data.name, function(err){
			if(err){
				console.log(err);
			}
			for(i in data.hosts){
				db.rpush(data.route, data.hosts[i]);
			}
		});
	});
	res.send('{"response":"OK"}');
});

// Removes route [ajax]
app.post('/ajax/remove', checkAuth, function(req, res){
	var key = req.body.key;
	db.del(key, function(err){
		if(err){
			console.log(err);
		}else{
			res.send('{"response":"OK"}');
		}
	});
});

app.get('/ajax/getInstances', checkAuth, function(req, res){
	if(!settings.enable_openstack){
		res.send(400, {error: 'Openstack support is not enabled'});
		return;
	}
	var params = {
					auth:{
							passwordCredentials: {
								username: settings.os_api_username,
								password: settings.os_api_password
							},
							tenantId: settings.os_api_tenant
						}
				 };
	request({url: settings.os_keystone_url+'/v2.0/tokens', method:'POST', body: params, json:true}, function(err, response, body){
		//console.log(body);
		var token = body.access.token.id;
		//res.send(body);
		var url = settings.os_nova_url+'/v2/'+settings.os_api_tenant+'/servers/detail?all_tenants=1';
		//console.log(url);
		request({url: url, method:'GET', headers:{'X-Auth-Token':token}, json:true}, function(err, response, body){
			//console.log(body);
			var instances = [];
			async.forEach(body.servers, function(instance, cb){
				var addresses = [];
				for (var i = 0; i < instance.addresses.private.length; i++) {
					addresses.push(instance.addresses.private[i].addr);
				};
				var tolist = {id:instance.id, name:instance.name, status:instance.status, addresses:addresses}
				instances.push(tolist);
				cb();
			}, function(err){
				res.send(instances);
			});
			
		});	
	});
});

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