add https settings and service

app.js

@@ -1,9 +1,18 @@
 var express = require('express');
 var bodyParser = require('body-parser');
+var https = require('https');
+var fs = require('fs');
+
 var zmrBot = require('./bot.js');
 
 var app = express();
 var port = process.env.PORT || 3000;
+var sslPath = '/etc/letsencrypt/live/sao.twilightparadox.com/';
+
+var options = {  
+    key: fs.readFileSync(sslPath + 'privkey.pem'),
+    cert: fs.readFileSync(sslPath + 'fullchain.pem')
+};
 
 // body parser middleware
 app.use(bodyParser.urlencoded({ extended: true }));
@@ -19,6 +28,10 @@ app.use(function (err, req, res, next) {
   res.status(400).send(err.message);
 });
 
+var server = http.createServer(options, app);  
+var io = require('socket.io').listen(server);
+server.listen(443);
+
 app.listen(port, function () {
   console.log('Slack bot listening on port ' + port);
 });