public async Task Run(Settings settings)
{
Settings = settings;
var local = settings.Local;
var listener = new TcpListener(local.Listen, local.Port);
listener.Start();
var pairIdSeed = 0;
while (true)
{
var client = await listener.AcceptSocketAsync();
var pairId = Interlocked.Increment(ref pairIdSeed);
_ = Task.Run(async() =>
{
var command = Negotiate(client);
if (command != null)
{
var cmd = command.Value;
await SendMessageAsync($"+E {pairId} {cmd.act} {cmd.addr}");
EndPointStation.AddEndPoint(pairId, client);
}
});
}
}
protected override async Task HandleReceivedMessageAsync(string message)
{
if (message.StartsWith("+E "))
{
var parts = message.Split(' ');
var pairId = Int32.Parse(parts[1]);
var act = Byte.Parse(parts[2]);
var addr = parts[3];
var sep = addr.LastIndexOf(':');
var host = addr.Substring(0, sep);
var port = Int32.Parse(addr.Substring(sep + 1));
var socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
switch (act)
{
case 1: // Connect
await socket.ConnectAsync(host, port);
break;
case 2: // Bind
case 3: // Udp Associate
throw new NotImplementedException();
default:
break;
}
EndPointStation.AddEndPoint(pairId, socket);
}
}