A JavaScript Shell

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Net;
using Scaredfinger.JSShell;
using System.IO;
using System.Timers;

namespace ShellServer
{
  class Program
  {
    static bool _inactive;
    static EventHandler<EventArgs> _handler;

    public static void InactiveListener(object sender, ElapsedEventArgs e)
    {
      if (_handler != null && ! _inactive)
        _handler(sender, e);

      _inactive = true;
    }

    static void Main(string[] args)
    {
      var server = new TcpListener(23); // Since this is kind of a telnet, if you have a telnet server, you should change this.
      server.Start();

      while (true) // Running until closed
      {
        var client = server.AcceptTcpClient();

        using (var shell = ShellFactory<SampleShell.SampleShell>.Default.CreateShell())
        {
          using (var output = new StreamWriter(client.GetStream()))
          {
            output.WriteLine("Welcom to JSShell...");
            output.Flush();

            using (var input = new StreamReader(client.GetStream()))
            {
              shell.Output = output;
              shell.OpenShell();
              _handler = shell.CreateEventHandler<EventArgs>(@"
  this.Print(""You are inactive and might be kick out any moment"");
");
              var timer = new Timer(5000);
              timer.Elapsed += InactiveListener;
              timer.Start();

              while (shell.Running)
              {
                try
                {
                  output.Write(" > ");
                  output.Flush();
                  shell.Eval(input.ReadLine());
                  output.Flush();
                  _inactive = false;
                }
                catch (Exception ex)
                {
                  output.WriteLine(ex);
                  output.Flush();
                }
              } // while
            } // using input
          } // using output
        } // using shell
      }
    }
  }
}