private XmlElement Authenticate(IEnumerable <string> mechanisms, string username, string password, string hostname)
{
string name = this.SelectMechanism(mechanisms);
SaslMechanism mechanism = SaslFactory.Create(name);
mechanism.Properties.Add("Username", username);
mechanism.Properties.Add("Password", password);
XmlElement element = Xml.Element("auth", "urn:ietf:params:xml:ns:xmpp-sasl").Attr("mechanism", name).Text(mechanism.HasInitial ? mechanism.GetResponse(string.Empty) : string.Empty);
this.Send(element);
while (true)
{
XmlElement element2 = this.parser.NextElement(new string[] { "challenge", "success", "failure" });
if (element2.Name == "failure")
{
throw new SaslException("SASL authentication failed.");
}
if ((element2.Name == "success") && mechanism.IsCompleted)
{
break;
}
string response = mechanism.GetResponse(element2.InnerText);
if (element2.Name == "success")
{
if (!(response == string.Empty))
{
throw new SaslException("Could not verify server's signature.");
}
break;
}
element = Xml.Element("response", "urn:ietf:params:xml:ns:xmpp-sasl").Text(response);
this.Send(element);
}
this.Authenticated = true;
return(this.InitiateStream(hostname));
}
public byte[] EvaluateChallenge(byte[] token)
{
return(m.GetResponse(token));
}
static void Main(string[] args)
{
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
socket.Connect("rooms.chinwag.im", 5222);
//String req = "<?xml version='1.0'?><stream:stream xmlns=\"jabber:client\" version=\"1.0\" xmlns:stream=\"http://etherx.jabber.org/streams\" from=\"[email protected]\" to=\"chinwag.im\" xml:lang=\"en\">";
string msg = "<?xml version='1.0'?><stream:stream xmlns=\"jabber: client\" version=\"1.0\" xmlns:stream=\"http://etherx.jabber.org/streams\" from=\"[email protected]\" to=\"chinwag.im\" xml:lang=\"en\">";
byte[] msgb = Encoding.ASCII.GetBytes(msg);
socket.Send(msgb);
byte[] recv = new byte[2000];
int len = socket.Receive(recv);
Console.WriteLine(Encoding.ASCII.GetString(recv, 0, len));
string msg1 = "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls' />";
byte[] msgb1 = Encoding.ASCII.GetBytes(msg1);
socket.Send(msgb1);
len = socket.Receive(recv);
Console.WriteLine(Encoding.ASCII.GetString(recv, 0, len));
using (NetworkStream netStream = new NetworkStream(socket))
using (SslStream stream = new SslStream(netStream))
{
stream.AuthenticateAsClient("rooms.chinwag.im");
stream.Write(msgb);
len = stream.Read(recv, 0, recv.Length);
string resp = Encoding.ASCII.GetString(recv, 0, len);
Console.WriteLine("SSL Response: " + resp);
if (resp.IndexOf("<mechanism>SCRAM-SHA-1</mechanism>") == -1)
{
return;
}
SaslMechanism sasl = SaslFactory.Create("Scram-Sha-1");
sasl.Properties.Add("Username", "testuser123456");
sasl.Properties.Add("Password", "testpassword");
string initial = sasl.GetResponse("");
msgb1 = Encoding.ASCII.GetBytes("<auth xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\" mechanism=\"SCRAM-SHA-1\">" + initial + "</auth>");
stream.Write(msgb1, 0, msgb1.Length);
len = stream.Read(recv, 0, recv.Length);
resp = Encoding.ASCII.GetString(recv, 0, len);
string req;
byte[] bytes;
int length;
while (socket.Connected)
{
req = Console.ReadLine();
bytes = Encoding.ASCII.GetBytes(req);
stream.Write(bytes, 0, bytes.Length);
bytes = new byte[2000];
length = stream.Read(bytes, 0, bytes.Length);
Console.WriteLine("Response: " + Encoding.ASCII.GetString(bytes, 0, length));
}
}
}
