Generate Valid MSNP9 ClientTicket

// These are the numbers where the addresses wil appear in the arraylist
// it is not the niced solution, but it works a lot faster
// you can use some kind of IDictionary object to put the value behind a key name
//
// PASPORTURLS
public int DARREALM			= 0;
public int DALOGIN			= 1;
public int DAREG			= 2;
public int PROPERTIES			= 3;
public int GENERALDIR			= 4;
public int HELP				= 5;
public int CONFIGVERSION		= 6;

public ArrayList PassportUrls;


/// <summary>
/// This function asks a valid login adres, to connect to
/// </summary>
/// <returns>true if succeed</returns>
public bool GetLoginServerAddres()
{
	// Make a request to the server, this adresses are being used in the MSN messenger
	HttpWebRequest ServerRequest = (HttpWebRequest)WebRequest.Create("https://nexus.passport.com/rdr/pprdr.asp");
	// Get the result
	HttpWebResponse ServerResponse = (HttpWebResponse)ServerRequest.GetResponse();
	if (ServerResponse.StatusCode == HttpStatusCode.OK)
	{
		string retrieveddata = ServerResponse.Headers.ToString();
		PassportUrls = new ArrayList();
		// Pick up the header en split
		string[] result = ServerResponse.Headers.Get("PassportURLs").Split(',');
		foreach (string s in result)
		{
			// The actual adres is provided behind the '=' sign
			PassportUrls.Add(s.Substring(s.IndexOf('=') + 1));
		}
		ServerResponse.Close();
		return true;
	}
	else
	{
		ServerResponse.Close();
		return false;
	}
}


/// <summary>
/// This function connects to a login server to request a valid ticket,
/// that will be used to login on the MSN servers
/// </summary>
/// <param name="Password">The password of the user, this is just plain text. The connection is HTTPS
/// <param name="Username">The complete username</param>
/// <param name="ChallengeString">A challenge string that you have got, wile connecting to a msn server
/// <returns>a valid ticket, that you send back to the server to get connected</returns>
public string GetClientTicket(string Password, string Username, string ChallengeString)
{
	// First get a valid login adres for the initial server
	if (GetLoginServerAddres())
	{
		// On the position of DALOGIN is a valid URL, for login
		string uri = "https://" + PassportUrls[DALOGIN];

		HttpWebRequest ServerRequest;
		HttpWebResponse ServerResponse;
		try
		{
			while( true )
			{
				
				Console.WriteLine("Connecting to:  " + uri);
				// Make a new request
				ServerRequest = (HttpWebRequest)HttpWebRequest.Create(uri);
				ServerRequest.AllowAutoRedirect = false;
				ServerRequest.Pipelined = false;
				ServerRequest.KeepAlive = false;
				ServerRequest.ProtocolVersion = new Version(1,0);
				// Send the authentication header
				ServerRequest.Headers.Add("Authorization", "Passport1.4 OrgVerb=GET,OrgURL=http%3A%2F%2Fmessenger%2Emsn%2Ecom,sign-in=" + Username.Replace("@", "%40") + ",pwd=" + Password + "," + ChallengeString + "\n");
				// Pick up the result
				ServerResponse = (HttpWebResponse)ServerRequest.GetResponse();

				// If the statuscode is OK, then there is a valid return
				if (ServerResponse.StatusCode == HttpStatusCode.OK)
				{
					// Pick up the information of the authentications
					string AuthenticationInfo = ServerResponse.Headers.Get("Authentication-Info");
					// Get the startposition of the ticket id (note it is between two quotes)
					int startposition = AuthenticationInfo.IndexOf('\'');
					// Get the endposition 
					int endposition = AuthenticationInfo.LastIndexOf('\'');
					// Substract the startposition of the endposition
					endposition = endposition - startposition ;

					// Close connection
					ServerResponse.Close();

					// Generate a new substring and return it
					return AuthenticationInfo.Substring(startposition + 1, endposition -1 );
					
				}
				// If the statuscode is 302, then there is a redirect, read the new adres en connect again
				else if (ServerResponse.StatusCode == HttpStatusCode.Found)
				{
					uri = ServerResponse.Headers.Get("Location");
				}
			}
		}
		catch (WebException e)
		{
			// If the statuscode is 401, then an exeption occurs
			// Think that your password + username combination is not correct
			// return number so that calling functions knows what to do
			if (e.Status == WebExceptionStatus.ProtocolError)
			{
				return "401";
			}
			else
			{
				return "0";
			}	
		}
	}
	return "0";
}