public Authorization Authenticate (string challenge, WebRequest webRequest, ICredentials credentials)
{
HttpWebRequest request = webRequest as HttpWebRequest;
if (request == null)
return null;
NetworkCredential cred = credentials.GetCredential (request.RequestUri, "NTLM");
if (cred == null)
return null;
string userName = cred.UserName;
string domain = cred.Domain;
string password = cred.Password;
if (userName == null || userName == "")
return null;
domain = domain != null && domain.Length > 0 ? domain : request.Headers ["Host"];
bool completed = false;
if (message == null) {
Type1Message type1 = new Type1Message ();
type1.Domain = domain;
message = type1;
} else if (message.Type == 1) {
// Should I check the credentials?
if (challenge == null) {
message = null;
return null;
}
Type2Message type2 = new Type2Message (Convert.FromBase64String (challenge));
if (password == null)
password = "";
Type3Message type3 = new Type3Message ();
type3.Domain = domain;
type3.Username = userName;
type3.Challenge = type2.Nonce;
type3.Password = password;
message = type3;
completed = true;
} else {
// Should I check the credentials?
// type must be 3 here
if (challenge == null || challenge == String.Empty) {
Type1Message type1 = new Type1Message ();
type1.Domain = domain;
message = type1;
} else {
completed = true;
}
}
string token = "NTLM " + Convert.ToBase64String (message.GetBytes ());
return new Authorization (token, completed);
}
public Authorization Authenticate (string challenge, WebRequest webRequest, ICredentials credentials)
{
HttpWebRequest request = webRequest as HttpWebRequest;
if (request == null)
return null;
NetworkCredential cred = credentials.GetCredential (request.RequestUri, "NTLM");
if (cred == null)
return null;
string userName = cred.UserName;
string domain = cred.Domain;
string password = cred.Password;
if (userName == null || userName == "")
return null;
if (String.IsNullOrEmpty (domain)) {
int idx = userName.IndexOf ('\\');
if (idx == -1) {
idx = userName.IndexOf ('/');
}
if (idx >= 0) {
domain = userName.Substring (0, idx);
userName = userName.Substring (idx + 1);
}
}
bool completed = false;
if (message == null) {
Type1Message type1 = new Type1Message ();
type1.Domain = domain;
type1.Host = ""; // MS does not send it
type1.Flags |= NtlmFlags.NegotiateNtlm2Key;
message = type1;
} else if (message.Type == 1) {
// Should I check the credentials?
if (challenge == null) {
message = null;
return null;
}
Type2Message type2 = new Type2Message (Convert.FromBase64String (challenge));
if (password == null)
password = "";
Type3Message type3 = new Type3Message (type2);
type3.Username = userName;
type3.Password = password;
type3.Domain = domain;
message = type3;
completed = true;
} else {
// Should I check the credentials?
// type must be 3 here
if (challenge == null || challenge == String.Empty) {
Type1Message type1 = new Type1Message ();
type1.Domain = domain;
type1.Host = ""; // MS does not send it
message = type1;
} else {
completed = true;
}
}
string token = "NTLM " + Convert.ToBase64String (message.GetBytes ());
return new Authorization (token, completed);
}
