public byte[] ToPackets()
{
var bPack = new List <byte>();
switch (this.Phase)
{
case Socks5Phase.spGreeting:
if (this.Credential == null)
{
//匿名代理
bPack.Add(5);
bPack.Add(1);
bPack.Add(0);
this.Phase = Socks5Phase.spConnecting;
}
else
{
//匿名或用户名密码代理
bPack.Add(5);
bPack.Add(2);
bPack.Add(0);
bPack.Add(2);
this.Phase = Socks5Phase.spAuthenticating;
}
break;
case Socks5Phase.spAuthenticating:
if (this.Credential == null)
{
throw new ProxyAuthException(403, "Socks5 Server request a credential");
}
bPack.Add(1);
bPack.Add(Convert.ToByte(this.Credential.UserName.Length));
bPack.AddRange(Encoding.ASCII.GetBytes(this.Credential.UserName));
bPack.Add(Convert.ToByte(this.Credential.Password.Length));
bPack.AddRange(Encoding.ASCII.GetBytes(this.Credential.Password));
this.Phase = Socks5Phase.spConnecting;
break;
case Socks5Phase.spConnecting:
bPack.Add(5);
bPack.Add((byte)this.Command);
bPack.Add(0);
bPack.Add((byte)((this.EndPoint is DnsEndPoint) ? 3 : 1));
Socks4Request.PackIn(bPack, this.EndPoint);
break;
}
return(bPack.ToArray());
}
public byte[] ToPackets()
{
var bPack = new List <byte>();
bPack.Add(0x00);
bPack.Add((byte)this.Status);
Socks4Request.PackIn(bPack, this.RemoteEndPoint, false);
return(bPack.ToArray());
}
public void UdpDirectReceive(HttpContext context, UdpClient proxyClient)
{
context.Server.ScriptTimeout = int.MaxValue;
HttpRequest Request = context.Request;
HttpResponse Response = context.Response;
Response.AppendHeader(HttpResponseHeader.Connection.ToString(), "close");
var bPack = new List <byte>();
while (Response.IsClientConnected)
{
try
{
var remoteIpe = new IPEndPoint(IPAddress.Any, IPEndPoint.MinPort);
byte[] data = proxyClient.Receive(ref remoteIpe);
if (!Response.IsClientConnected)
{
break;
}
bPack.Clear();
Socks4Request.PackIn(bPack, remoteIpe);
bPack.AddRange(data);
byte[] bData = bPack.ToArray();
Response.OutputStream.Write(bData, 0, bData.Length);
Response.Flush();
App.LogInfo("UdpDirectReceive from {0} {1}bytes.", remoteIpe, data.Length);
}
catch (ObjectDisposedException ex)
{
#if DEBUG
App.LogInfo(string.Format("Predictable objectDisposed exception: {0}", ex.StackTrace));
#endif
}
catch (IOException ex)
{
TunnelExceptionHandler.Handle(ex, proxyClient.Client, "UdpDirectReceive");
}
catch (SocketException ex)
{
if (ex.SocketErrorCode == SocketError.Interrupted)
{
#if DEBUG
App.LogInfo(string.Format("Predictable interrupted exception: {0}", ex.Message));
#endif
return;
}
TunnelExceptionHandler.Handle(ex, proxyClient.Client, "UdpDirectReceive");
}
}
}
public byte[] ToPackets()
{
var bPack = new List <byte>();
switch (this.Phase)
{
case Socks5Request.Socks5Phase.spGreeting:
if (this.Anonymous)
{
bPack.Add(5);
bPack.Add(0);
this.Phase = Socks5Request.Socks5Phase.spConnecting;
}
else
{
bPack.Add(5);
bPack.Add(2);
this.Phase = Socks5Request.Socks5Phase.spAuthenticating;
}
break;
case Socks5Request.Socks5Phase.spAuthenticating:
if (this.Status != ResponseStatus.Success)
{
throw new ProxyAuthException(403, "Authentication failure, connection must be closed");
}
bPack.Add(1);
bPack.Add((byte)this.Status);
this.Phase = Socks5Request.Socks5Phase.spConnecting;
break;
case Socks5Request.Socks5Phase.spConnecting:
bPack.Add(5);
bPack.Add(0);
bPack.Add(0);
bPack.Add(1);
Socks4Request.PackIn(bPack, this.RemoteEndPoint);
break;
}
return(bPack.ToArray());
}