/// <summary>
/// 处理查询
/// </summary>
/// <param name="Query"></param>
private void ProcessQuery(Byte[] Query)
{
try
{
switch (Query[1])
{
case 1: //CONNECT
IPAddress RemoteIP = null;
int RemotePort = 0;
if (Query[3] == 1)
{
RemoteIP = IPAddress.Parse(Query[4].ToString() + "." + Query[5].ToString() + "." + Query[6].ToString() + "." + Query[7].ToString());
RemotePort = Query[8] * 256 + Query[9];
}
else if (Query[3] == 3)
{
RemoteIP = Dns.Resolve(Encoding.ASCII.GetString(Query, 5, Query[4])).AddressList[0];
RemotePort = Query[4] + 5;
RemotePort = Query[RemotePort] * 256 + Query[RemotePort + 1];
}
_RemoteConnection = new Socket(RemoteIP.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
_RemoteConnection.BeginConnect(new IPEndPoint(RemoteIP, RemotePort), new AsyncCallback(this.OnConnected), _RemoteConnection); //0
break;
case 2: //BIND
byte[] Reply = new byte[10];
long LocalIP = Socks5Listener.GetLocalExternalIP().Address;
_AcceptSocket = new Socket(IPAddress.Any.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
_AcceptSocket.Bind(new IPEndPoint(IPAddress.Any, 0));
_AcceptSocket.Listen(50);
Reply[0] = 5; //Version 5
Reply[1] = 0; //Everything is ok :)
Reply[2] = 0; //Reserved
Reply[3] = 1; //We're going to send a IPv4 address
Reply[4] = (byte)(Math.Floor((LocalIP % 256d))); //IP Address/1
Reply[5] = (byte)(Math.Floor((LocalIP % 65536d) / 256)); //IP Address/2
Reply[6] = (byte)(Math.Floor((LocalIP % 16777216d) / 65536)); //IP Address/3
Reply[7] = (byte)(Math.Floor(LocalIP / 16777216d)); //IP Address/4
Reply[8] = (byte)(Math.Floor(((IPEndPoint)_AcceptSocket.LocalEndPoint).Port / 256d)); //Port/1
Reply[9] = (byte)(((IPEndPoint)_AcceptSocket.LocalEndPoint).Port % 256d); //Port/2
_Connection.BeginSend(Reply, 0, Reply.Length, SocketFlags.None, new AsyncCallback(this.OnStartAccept), _Connection); //0
break;
case 3: //ASSOCIATE
//ASSOCIATE is not implemented (yet?)
Dispose(7);
break;
default:
Dispose(7);
break;
}
}
catch (Exception ex) { Log.AddLog("Socks5Handler在处理查询时出错|" + ex.Message); Dispose(1); }
}
internal ProgramMain()
{
mutex = new Mutex(true, System.Diagnostics.Process.GetCurrentProcess().MachineName, out bool isRun);
Log = new LogMain(AppDomain.CurrentDomain.BaseDirectory + "//Log");
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.Green;
var cmd = String.Empty;
if (isRun)
{
Console.WriteLine(DateTime.Now + "\r\n请注意,监听IP地址务必为内网IP,不可为127.0.0.1/0.0.0.0,否则会导致程序不工作!");
Console.Write(">");
cmd = Console.ReadLine();
while (!cmd.Equals("2333"))
{
switch (cmd)
{
case "0":
Console.Clear();
break;
case "1":
Console.Write("请输入监听地址:");
var a = Console.ReadLine();
Console.Write("请输入监听端口:");
var b = Console.ReadLine();
Console.Write("请输入最大用户数:");
var c = Console.ReadLine();
Listener = new Socks5Listener(a, Convert.ToInt32(b), Convert.ToInt32(c), ref Log);
Listener.StartListener();
Console.Clear();
Console.WriteLine("时间:" + DateTime.Now + "\r\n已启动Socks5代理服务器!");
break;
case "2":
Console.WriteLine("正在重启代理服务器,请稍后...");
if (Listener != null)
{
Listener.Restart();
}
else
{
Console.WriteLine("Socks5代理服务器未开启,无法完成重启操作!");
}
Console.WriteLine("代理服务器重启完成!");
break;
case "3":
Console.WriteLine("正在关闭代理服务器,请稍后...");
if (Listener != null)
{
Listener.Stop();
}
else
{
Console.WriteLine("Socks5代理服务器未开启,无法完成关闭操作!");
}
Console.WriteLine("代理服务器已关闭!");
break;
case "4":
Console.Write("请输入监听地址:");
var d = Console.ReadLine();
Console.Write("请输入监听端口:");
var e = Console.ReadLine();
Console.Write("请输入最大用户数:");
var f = Console.ReadLine();
if (Listener == null)
{
Listener = new Socks5Listener(d, Convert.ToInt32(e), Convert.ToInt32(f), ref Log);
}
else
{
Listener.Stop();
Listener.Dispose();
Listener = new Socks5Listener(d, Convert.ToInt32(e), Convert.ToInt32(f), ref Log);
Listener.StartListener();
Console.WriteLine("设置更改完成.");
}
break;
case "?":
Console.WriteLine("输入?查看命令帮助\r\n输入0清空控制台\r\n输入1开启Socks5代理服务器\r\n输入2重启代理服务器\r\n输入3关闭代理服务器\r\n输入4关闭代理服务器\r\n输入4更改代理服务器设置\r\n输入2333关闭程序");
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("请注意,更改代理服务器设置会导致服务器重启!");
Console.ForegroundColor = ConsoleColor.Green;
break;
default:
Console.WriteLine("命令错误!\r\n请输入?查看帮助.");
break;
}
Console.Write(">");
cmd = Console.ReadLine();
}
}
Log.SaveLog();
Console.WriteLine("日志保存完成!\r\n请按任意键退出...");
Console.Read();
}
