// Decompiled with JetBrains decompiler
// Type: Socks5Server
// Assembly: Client, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
// MVID: 92DF2D60-35B0-4A06-AFD8-50A246F39510
// Assembly location: C:\Users\user\Desktop\v3.8.0 Deluxe Plugins (v4.0.0) cracked\Builder\Client.exe

using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;

#nullable disable
public class Socks5Server
{
  private TcpListener listener;
  private bool running;

  public async Task Start(int port)
  {
    this.listener = new TcpListener(IPAddress.Any, port);
    this.listener.Start();
    this.running = true;
    while (this.running)
      this.HandleClient(await this.listener.AcceptTcpClientAsync());
  }

  public void Stop()
  {
    this.running = false;
    this.listener?.Stop();
  }

  private async Task HandleClient(TcpClient client)
  {
    NetworkStream stream = client.GetStream();
    try
    {
      byte[] hello = new byte[2];
      int num1 = await stream.ReadAsync(hello, 0, hello.Length);
      byte[] buffer1 = new byte[(int) hello[1]];
      int num2 = await stream.ReadAsync(buffer1, 0, buffer1.Length);
      byte[] buffer2 = new byte[2]{ (byte) 5, (byte) 0 };
      await stream.WriteAsync(buffer2, 0, buffer2.Length);
      byte[] header = new byte[4];
      int num3 = await stream.ReadAsync(header, 0, header.Length);
      string host = "";
      if (header[3] == (byte) 3)
      {
        byte[] hostBytes = new byte[stream.ReadByte()];
        int num4 = await stream.ReadAsync(hostBytes, 0, hostBytes.Length);
        host = Encoding.ASCII.GetString(hostBytes);
        hostBytes = (byte[]) null;
      }
      byte[] portBytes = new byte[2];
      int num5 = await stream.ReadAsync(portBytes, 0, portBytes.Length);
      int port = (int) portBytes[0] << 8 | (int) portBytes[1];
      TcpClient remote = new TcpClient();
      await remote.ConnectAsync(host, port);
      byte[] numArray = new byte[10];
      numArray[0] = (byte) 5;
      numArray[3] = (byte) 1;
      byte[] buffer3 = numArray;
      await stream.WriteAsync(buffer3, 0, buffer3.Length);
      NetworkStream stream1 = remote.GetStream();
      stream1.CopyToAsync((Stream) stream);
      stream.CopyToAsync((Stream) stream1);
      hello = (byte[]) null;
      header = (byte[]) null;
      host = (string) null;
      portBytes = (byte[]) null;
      remote = (TcpClient) null;
      stream = (NetworkStream) null;
    }
    catch
    {
      client.Close();
      stream = (NetworkStream) null;
    }
  }
}