private void ConnectVersion5(Stream stm, IpProxyToken token, Logger logger)
{
byte[] req = new byte[3] { 5, 1, 0 };
stm.Write(req, 0, req.Length);
byte[] resp = GeneralUtils.ReadBytes(stm, 2);
if ((resp[0] == 5) && (resp[1] == 0))
{
List<byte> connect = new List<byte>();
connect.Add(5);
connect.Add(1);
connect.Add(0);
if (_sendHostName && !String.IsNullOrWhiteSpace(token.Hostname))
{
connect.Add(3);
connect.Add((byte)token.Hostname.Length);
connect.AddRange(new BinaryEncoding().GetBytes(token.Hostname));
}
else if(token.Address != null)
{
if (token.Address.AddressFamily == AddressFamily.InterNetwork)
{
connect.Add(1);
}
else if (token.Address.AddressFamily == AddressFamily.InterNetworkV6)
{
connect.Add(4);
}
else
{
throw new ArgumentException(CANAPE.Net.Properties.Resources.SocksProxyClient_InvalidProxyToken);
}
connect.AddRange(token.Address.GetAddressBytes());
}
else
{
throw new ArgumentException(CANAPE.Net.Properties.Resources.SocksProxyClient_InvalidProxyToken2);
}
connect.Add((byte)(token.Port >> 8));
connect.Add((byte)(token.Port & 0xFF));
stm.Write(connect.ToArray(), 0, connect.Count);
if (stm.ReadByte() != 5)
{
logger.LogError(CANAPE.Net.Properties.Resources.SocksProxyClient_InvalidV5Response);
}
int status = stm.ReadByte();
// Read out the rest of the data
stm.ReadByte();
int addrType = stm.ReadByte();
switch (addrType)
{
case 1:
GeneralUtils.ReadBytes(stm, 4);
break;
case 3:
int len = stm.ReadByte();
if (len < 0)
{
throw new EndOfStreamException(CANAPE.Net.Properties.Resources.SocksProxyClient_EosInDomain);
}
GeneralUtils.ReadBytes(stm, len);
break;
case 4:
GeneralUtils.ReadBytes(stm, 16);
break;
default:
throw new ArgumentException(CANAPE.Net.Properties.Resources.SocksProxyClient_InvalidAddrType);
}
// Port
GeneralUtils.ReadBytes(stm, 2);
if (status == 0)
{
token.Status = NetStatusCodes.Success;
}
else
{
token.Status = NetStatusCodes.ConnectFailure;
}
}
else
{
logger.LogError(CANAPE.Net.Properties.Resources.SocksProxyClient_InvalidV5Response2, resp[0], resp[1]);
token.Status = NetStatusCodes.ConnectFailure;
}
}
private static void ConnectWithIpProxyToken(Stream stm, IpProxyToken token, Logger logger)
{
string hostname = token.Hostname != null ? token.Hostname : token.Address.ToString();
string req = String.Format("CONNECT {0}:{1} HTTP/1.0\r\n\r\n", hostname, token.Port);
byte[] reqBytes = Encoding.ASCII.GetBytes(req);
stm.Write(reqBytes, 0, reqBytes.Length);
List<string> headers = new List<string>();
// Read out response headers
while (true)
{
string nextLine = GeneralUtils.ReadLine(stm);
headers.Add(nextLine);
if (nextLine.Trim().Length == 0)
{
break;
}
}
if (headers.Count > 0)
{
string[] vals = headers[0].Split(' ');
int res = 0;
if (vals.Length >= 2)
{
if (int.TryParse(vals[1], out res) && (res == 200))
{
token.Status = NetStatusCodes.Success;
}
else
{
logger.LogError(CANAPE.Net.Properties.Resources.HttpProxyClient_ErrorOnConnect, res, hostname, token.Port);
}
}
else
{
logger.LogError(CANAPE.Net.Properties.Resources.HttpProxyClient_InvalidResponse);
}
}
else
{
logger.LogError(CANAPE.Net.Properties.Resources.HttpProxyClient_NoResponse);
}
}
