server.js

var   compression = require('compression');
var   express    = require('express');
var   app        = express();
const PORT       = process.env.PORT || 5000;
var   twitter    = require('./api/twitter'); 
var   favourites = require('./api/favourites');
var   time       = require('express-timestamp')
var   page404    = 'public/404.html';
var   pageApiDoc = 'public/api-doc.html';

console.log("\n");
console.log("   ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░");
console.log("   ░░░░░░█▀▀█░█▀█░█▀▀░░█▀█░█▀▀▀░█▀█░█▀▀░▀█▀░░░░░               .-. ");
console.log("   ░░░░░░█▀█▀░█▀█░█░░█░█▀█░█░▀█░█▀█░▀▀█░░█░░░░░░         (`.__(. .) ");
console.log("   ░░░░░░▀ ░▀░▀ ▀░▀▀▀░░▀░▀░▀▀▀░░▀░▀░▀▀▀░░▀░░░░░░         (      V \\ ");
console.log("   ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░          \\/   )  /    () ");
console.log("   ░░ Twitter search API started on port "+ PORT +" ░░          / _.'_.'  ()/'-(> ");
console.log("   ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░========`'==>>=====<_(>");
console.log("                                                                     <)'`-<>");


app.set('view engine', 'jade');
app.use(time.init);
app.use(compression());

function nocache(req, res, next) {
  res.header('Cache-Control', 'private, no-cache, no-store, must-revalidate');
  res.header('Expires', '-1');
  res.header('Pragma', 'no-cache');
  next();
}
app.use(nocache);


// ----------------------------------------------------
//         TWITTER SEARCH
// ----------------------------------------------------

app.get('/api/v1/twitter/search/', function(req, res){
  if (!req.query.q) {
    log(req, "Incorrect query");
    res.sendFile(pageApiDoc, {root: __dirname });
  } else {
    log(req, "Search: " + req.query.q);
    twitter.getTwitsSearch(res, req.query.q, req.query.lang, req.query.count, req.query.geocode);
  }
});

app.get('/api/v1/twitter/remove/', function(req, res){
  if (!req.query.q) {
    log(req, "Incorrect query");
    res.sendFile(pageApiDoc, {root: __dirname });
  } else {
    log(req, "Remove: " + req.query.q);
    twitter.removeTwitsSearch(res, req.query.q);
  }
});

app.get('/api/v1/twitter/all/', function(req, res){
  log(req, "All results");
  twitter.getAllTwits(res, req);
});


// ----------------------------------------------------
//         FAVOURITES
// ----------------------------------------------------

app.get('/api/v1/favourites/add/', function(req, res){
  log(req, req.query.user +", "+ req.query.text);

  if (!req.query.user || !req.query.text) {
    log(req, "Incorrect query");
    res.sendFile(pageApiDoc, {root: __dirname });
  } else {
    favourites.add(req.query.user, req.query.text, res);
  }
});

app.get('/api/v1/favourites/remove/', function(req, res){
  log(req, req.query.user +", "+ req.query.text);

  if (!req.query.user || !req.query.text) {
    log(req, "Incorrect query");
    res.sendFile(pageApiDoc, {root: __dirname });
  } else {
    favourites.remove(req.query.user, req.query.text, res);
  }
});

app.get('/api/v1/favourites/get/', function(req, res){
  log(req, req.query.user);

  if (!req.query.user) {
    log(req, "Incorrect query");
    res.sendFile(pageApiDoc, {root: __dirname });
  } else {
    favourites.get(req.query.user, req, res);
  }
});


// ----------------------------------------------------
//         Default API route handler
// ----------------------------------------------------

app.get('/api/',function (req, res) {
  res.sendFile(pageApiDoc, {root: __dirname });
  log(req, "API Doc");
});

app.get('/api/?*',function (req, res) {
  log(req, "Incorrect API call");
  res.redirect('/api/');
});


app.use(express.static(__dirname + "/html"));


// ----------------------------------------------------
//         FRONTEND
// ----------------------------------------------------

app.use(function (req, res, next){
    if(req.headers['x-forwarded-proto'] === 'https') {
        res.redirect('http://' + req.hostname + req.url); //redirect HTTPS traffic over HTTP, for Heroku
    } else { 
        next();
    }
});


app.use(express.static('public'));
app.listen(PORT);



// ----------------------------------------------------
// ----------------------------------------------------
// ----------------------------------------------------


function preload() {
  try {
    twitter.loadData();
    console.log("  Twitter data loaded.");
  } catch (e) {
    console.log("  [!] Couldn't load Twitter data.");
  }

  try {
    favourites.load();
    console.log("  Favourites loaded.");
  } catch (e) {
    console.log("  [!] Couldn't load favourites.\n" + JSON.stringify(e));
  }
}

function log(req, log) {
  var ip;
  if (req.ip) {
    ip = req.ip.replace(/::ffff:/, "");
  } else {
    ip = "";
  }
  console.log(req.timestamp.format() + " ["+ ip +"] "+req.originalUrl + " : "+ log);
}