update running server

@@ -6,26 +6,38 @@
 
 var app = require('../app');
 var debug = require('debug')('2020-02-oss-termproject:server');
-var http = require('http');
+const domain = "www.khumwd.ml"
+const sslport = 8080;
+
+const fs = require('fs');
+const path = require('path');
+const HTTPS = require('https');
 
 /**
  * Get port from environment and store in Express.
  */
 
-var port = normalizePort(process.env.PORT || '3000');
+var port = normalizePort(process.env.PORT || '8080');
 app.set('port', port);
 
 /**
  * Create HTTP server.
  */
 
-var server = http.createServer(app);
+const option = {
+  ca: fs.readFileSync('/etc/letsencrypt/live/' + domain +'/fullchain.pem'),
+  key: fs.readFileSync(path.resolve(process.cwd(), '/etc/letsencrypt/live/' + domain +'/privkey.pem'), 'utf8').toString(),
+  cert: fs.readFileSync(path.resolve(process.cwd(), '/etc/letsencrypt/live/' + domain +'/cert.pem'), 'utf8').toString(),
+};
+
+var server = HTTPS.createServer(option, app).listen(sslport, () => {
+  console.log(`[HTTPS] Server is started on port ${sslport}`);
+});
 
 /**
  * Listen on provided port, on all network interfaces.
  */
 
-server.listen(port);
 server.on('error', onError);
 server.on('listening', onListening);