public TelnetClient(TcpClient tcpClient, chat.Server sv, int slotNumber)
{
this.tcpClient = tcpClient;
this.sv = sv;
this.clientState = ClientStates.SENDGREETING;
this.slotNumber = slotNumber;
this.chatCommands = new ChatCommands();
this.userPrefs = new UserPrefs(); // after class creation
}
public static void Main(string[] args)
{
int port= 9000;
if (args.Length > 0 )
{
Int32.TryParse(args[0], out port);
}
Console.WriteLine("Port used:" + port);
byte[] rejectMessage = System.Text.ASCIIEncoding.ASCII.GetBytes("You are not allowed to connect multiple times, sorry.\r\n");
byte[] serverFullMessage = System.Text.ASCIIEncoding.ASCII.GetBytes("Server is full. Please check back later.\r\n");
Dictionary<int,TelnetClient> telnets = new Dictionary<int,TelnetClient>();
var sv = new chat.Server(telnets);
var tcpServer = new TcpListener(IPAddress.Any, port);
tcpServer.Start();
Console.WriteLine("Chat Server started on {0}.", tcpServer.LocalEndpoint.ToString());
while(true)
{
bool ipFound = false;
var tcpClient = tcpServer.AcceptTcpClient();
string ip = ((IPEndPoint)tcpClient.Client.RemoteEndPoint).Address.ToString();
foreach (KeyValuePair<int,TelnetClient> telnet in telnets)
{
if (telnet.Value != null && telnet.Value is TelnetClient && telnet.Value.HasIp(ip))
{
ipFound = true;
break;
}
}
if (ipFound)
{
tcpClient.GetStream().Write(rejectMessage,0,rejectMessage.Length);
tcpClient.Close();
}
else
{
try
{
int slotNumber = Server.FindFreeSlot();
var telnetClient = new TelnetClient(tcpClient,sv, slotNumber);
Thread thread = new Thread(new ThreadStart(telnetClient.Run));
telnets.Add(slotNumber, telnetClient);
Console.WriteLine("Connected clients: " + telnets.Count);
thread.Start();
}
catch (chat.ServerFullException e)
{
tcpClient.GetStream().Write(serverFullMessage,0,serverFullMessage.Length);
tcpClient.Close();
}
}
}
}
