System.Net.HttpWebRequest.AuthorizationState.CheckAuthorization C# (CSharp) Method

			public bool CheckAuthorization (WebResponse response, HttpStatusCode code)
			{
				isCompleted = false;
				if (code == HttpStatusCode.Unauthorized && request.credentials == null)
					return false;

				// FIXME: This should never happen!
				if (isProxy != (code == HttpStatusCode.ProxyAuthenticationRequired))
					return false;

				if (isProxy && (request.proxy == null || request.proxy.Credentials == null))
					return false;

				string [] authHeaders = response.Headers.GetValues_internal (isProxy ? "Proxy-Authenticate" : "WWW-Authenticate", false);
				if (authHeaders == null || authHeaders.Length == 0)
					return false;

				ICredentials creds = (!isProxy) ? request.credentials : request.proxy.Credentials;
				Authorization auth = null;
				foreach (string authHeader in authHeaders) {
					auth = AuthenticationManager.Authenticate (authHeader, request, creds);
					if (auth != null)
						break;
				}
				if (auth == null)
					return false;
				request.webHeaders [isProxy ? "Proxy-Authorization" : "Authorization"] = auth.Message;
				isCompleted = auth.Complete;
				bool is_ntlm = (auth.Module.AuthenticationType == "NTLM");
				if (is_ntlm)
					ntlm_auth_state = (NtlmAuthState)((int) ntlm_auth_state + 1);
				return true;
			}