internal static IPEndPoint IPEndPointFromHostPortString(string hostAndPort)
{
if ((hostAndPort == null) || string.IsNullOrEmpty(hostAndPort.Trim()))
{
return(null);
}
if (hostAndPort.IndexOf(';') > -1)
{
hostAndPort = hostAndPort.Substring(0, hostAndPort.IndexOf(';'));
}
try
{
string str;
int port = 80;
CrackHostAndPort(hostAndPort, out str, ref port);
return(new IPEndPoint(DNSResolver.GetIPAddress(str, true), port));
}
catch (Exception)
{
return(null);
}
}
private bool ConnectToHost()
{
string str;
int port = _session.Port;
string hostPort = _session.Host;
Utilities.CrackHostAndPort(hostPort, out str, ref port);
var remoteEp = Proxy.Gateway;
if (remoteEp != null)
{
WasForwarded = true;
}
else
{
IPAddress address;
try
{
address = DNSResolver.GetIPAddress(str, true);
}
catch
{
_session.Request.FailSession(0x1f6, "DNS Lookup Failed", "DNS Lookup for " + HttpUtility.HtmlEncode(str) + " failed.");
return(false);
}
if ((port < 0) || (port > 0xffff))
{
_session.Request.FailSession(0x1f6, "Invalid Request", "HTTP Request specified an invalid port number.");
return(false);
}
remoteEp = new IPEndPoint(address, port);
}
try
{
var socket = new Socket(remoteEp.AddressFamily, SocketType.Stream, ProtocolType.Tcp)
{
NoDelay = true,
ReceiveTimeout = 10000,
SendTimeout = 10000
};
ServerSocket = socket;
ServerSocket.Connect(remoteEp);
return(true);
}
catch (Exception exception)
{
if (WasForwarded)
{
_session.Request.FailSession(
0x1f6,
"Gateway Connection Failed",
string.Format(CultureInfo.InvariantCulture, "Connection to Gateway failed.<BR>Exception Text: {0}", exception.Message));
}
else
{
_session.Request.FailSession(
0x1f6,
"Connection Failed",
string.Format(CultureInfo.InvariantCulture, "Connection to {0} failed.<BR>Exception Text: {1}", HttpUtility.HtmlEncode(str), exception.Message));
}
return(false);
}
}