public Host()
{
this._isRunning = false;
this._game_name = string.Empty;
this._player_count = 0;
this.gameTunnel = new UdpProxy();
}
public UdpClientEx(UdpProxy server, IPEndPoint clientEndpoint, IPEndPoint remoteServer)
{
_server = server;
_isRunning = true;
RemoteServer = remoteServer;
ClientEndpoint = clientEndpoint;
if (server.Verbose)
{
Console.WriteLine($"[PROXY] Established {clientEndpoint} => {remoteServer}");
}
Run();
}
private Client(TcpClient tcpClient, bool localonly)
{
var gameProxy = new UdpProxy();
this.taskSrc = new TaskCompletionSource <Client>();
this._client = tcpClient;
Task.Factory.StartNew(async(obj) =>
{
using (var client = (TcpClient)obj)
using (var broadcaster = new UdpClient(new IPEndPoint(localonly ? IPAddress.Loopback : IPAddress.Any, 0)))
using (var networkStream = client.GetStream())
{
networkStream.ReadTimeout = 5000;
networkStream.WriteTimeout = 5000;
broadcaster.Connect(IPAddress.Broadcast.ToString(), AmongUs.BroadcastPort);
// 4096 bytes should be enough??
byte[] buffer = new byte[4096];
byte[] broadcastMessage = null;
await networkStream.WriteAsync(Host.BroadcastHandshake, 0, Host.BroadcastHandshake.Length);
int readLen = await networkStream.ReadAsync(buffer, 0, buffer.Length);
if (readLen == sizeof(int) && (BitConverter.ToInt32(buffer, 0) == (int)MessageID.OK))
{
var destination = (IPEndPoint)tcpClient.Client.RemoteEndPoint;
// this.gameTunnel = new UdpTunnel(new IPEndPoint(localonly ? IPAddress.Loopback : IPAddress.Any, AmongUs.ServerPort), destination);
try
{
_ = gameProxy.Start(destination.Address.ToString(), (ushort)destination.Port, AmongUs.ServerPort, (localonly ? IPAddress.Loopback : IPAddress.Any).ToString());
// _ = gameTunnel.Start();
while (this._client.Connected)
{
buffer.WriteBytes((int)MessageID.Broadcast, 0);
await networkStream.WriteAsync(buffer, 0, sizeof(int));
readLen = await networkStream.ReadAsync(buffer, 0, buffer.Length);
var strCount = readLen - sizeof(ushort);
var playerCount = buffer.ReadUInt16(strCount);
var extendedPart = $" (Proxy)~Open~{playerCount}~";
var byteCountOfExtendedPart = Encoding.UTF8.GetByteCount(extendedPart);
var byteCountOfMessage = 2 + strCount + byteCountOfExtendedPart;
// Reuse allocated buffer to avoid unnecessary allocations.
// Only create anew in case it has not been created yet or the buffer's size is not enough
if (broadcastMessage == null || broadcastMessage.Length < byteCountOfMessage)
{
broadcastMessage = new byte[2 + strCount + byteCountOfExtendedPart];
broadcastMessage[0] = 4;
broadcastMessage[1] = 2;
}
// Copy game name.
Buffer.BlockCopy(buffer, 0, broadcastMessage, 2, strCount);
// Encode the extended part into the buffer
Encoding.UTF8.GetBytes(extendedPart, 0, extendedPart.Length, broadcastMessage, strCount + 2);
broadcaster.Send(broadcastMessage, byteCountOfMessage);
await Task.Delay(100);
}
}
catch (Exception ex) when(!(ex is ObjectDisposedException))
{
this.taskSrc.TrySetException(ex);
}
finally
{
gameProxy.Stop();
// gameTunnel.Stop();
}
this.taskSrc.TrySetResult(this);
}
broadcaster.Close();
client.Close();
this.taskSrc.TrySetCanceled();
}
}, tcpClient, TaskCreationOptions.LongRunning);
}