/// <summary>
/// Performs the authentication using the SASL Plain authentication mechanism.
/// </summary>
public override void Authenticate()
{
if (RequestToken())
{
// Send authentication mechanism
var auth = new Auth();
auth.Value = BuildMessage();
auth.Mechanism = XmppCodes.SaslXGoogleTokenMechanism;
Connection.Send(auth);
waitEvent.WaitOne();
if (!AuthenticationFailed)
{
// Re-Initialize XMPP Stream
Connection.InitializeXmppStream();
// Wait until we receive the Stream features
Connection.WaitForStreamFeatures();
}
}
else
{
AuthenticationFailed = true;
}
}
/// <summary>
/// Performs the authentication using the SASL digest authentication mechanism.
/// </summary>
public override void Authenticate()
{
// Send authentication mechanism
var auth = new Auth { Mechanism = XmppCodes.SaslDigestMD5Mechanism };
Connection.Send(auth);
successEvent.WaitOne();
// Verify received Digest-Challenge
// Check that the nonce setting is pressent
if (!digestChallenge.ContainsKey("nonce"))
{
throw new XmppException("SASL Authrization failed. Incorrect challenge received from server");
}
// Check that the charset is correct
if (digestChallenge.ContainsKey("charset")
&& digestChallenge["charset"] != "utf-8")
{
throw new XmppException("SASL Authrization failed. Incorrect challenge received from server");
}
// Check that the mechanims is correct
if (!digestChallenge.ContainsKey("algorithm")
|| digestChallenge["algorithm"] != "md5-sess")
{
throw new XmppException("SASL Authrization failed. Incorrect challenge received from server");
}
// Send the Digest-Reponse
var digestResponse = new Response();
digestResponse.Value = BuildDigestRespose();
Connection.Send(digestResponse);
successEvent.WaitOne();
if (digestChallenge.ContainsKey("rspauth"))
{
digestResponse = new Response();
Connection.Send(digestResponse);
successEvent.WaitOne();
}
if (!AuthenticationFailed)
{
// Re-Initialize XMPP Stream
Connection.InitializeXmppStream();
// Wait until we receive the Stream features
Connection.WaitForStreamFeatures();
}
}
