Notica/server.js

const path = require('path');
const express = require('express');
const bodyParser = require('body-parser');
const moment = require('moment');

const app = express();

const host = 'http://127.0.0.1';
const port = 3000;

app.use(bodyParser.urlencoded({ extended: false }));

function log(message) {
	console.log(moment().format() + ': ' + message);
}

app.use('/', express.static(path.join(__dirname, 'public')));
app.get('/*', (req, res) => {
	res.sendFile(path.join(__dirname, 'public/index.html'));
});

app.post('*', (req, res) => {
	let id = req.path.substring(1);
	let data = Object.keys(req.body)[0];

	if (data && data.substring(0,2) === 'd:') {
		let message = data.substring(2);

		log('[NOTICA] Message sent to ' + id + ': ' + message);

		io.in(id).emit('message', message);

		res.end();
	} else {
		log('Ignoring bad POST data to: ' + id);
		res.send('Bad POST data.');
	}
});

const server = app.listen(port, 'localhost', (err) => {
	if (err) {
		log('[ERROR] Server error: ' + err);
		return;
	}
	console.info('==> Listening on port %s. Open up %s:%s/ in your browser.', port, host, port);
});

const io = require('socket.io').listen(server);

io.on('connection', (socket) => {
	socket.on('room', (room) => {
		log('New connection joining room: ' + room);
		socket.join(room);
	});
});