fucking_coffee.js

#!/usr/bin/env node

/* Before running:
        npm install telnet-client
*/

var exec = require('child_process').exec;
var telnet = require('telnet-client');

var me = process.env['USERNAME'];

exec("who", function(error, stdout, stderr) {

    // Exit if no sessions with my username are found
    if(stdout.indexOf(me) == -1)
        process.exit(/*1*/);

    var coffee_machine_ip = process.env['COFFEE_MACHINE_IP'];
    var password = process.env['PASSWORD'];
    var con = new telnet();

    con.on('ready', function(prompt) {
        con.exec('Password: ' + password, function(error, res) {

            // Brew Coffee!
            con.exec('sys brew', function(error, res) {

                // Wait for 24s
                setTimeout(function() {

                    // Pour Coffee!
                    con.exec('sys pour', function(error, res) {
                        con.end();
                    });
                }, 24000);
            });
        });
    });

    con.connect({host: coffee_machine_ip});
});