System.Net.HttpWebRequest.HttpWebRequest.DoPreAuthenticate C# (CSharp) Method

		void DoPreAuthenticate ()
		{
			bool isProxy = (proxy != null && !proxy.IsBypassed (actualUri));
			ICredentials creds = (!isProxy || credentials != null) ? credentials : proxy.Credentials;
			Authorization auth = AuthenticationManager.PreAuthenticate (this, creds);
			if (auth == null)
				return;

			webHeaders.RemoveInternal ("Proxy-Authorization");
			webHeaders.RemoveInternal ("Authorization");
			string authHeader = (isProxy && credentials == null) ? "Proxy-Authorization" : "Authorization";
			webHeaders [authHeader] = auth.Message;
			usedPreAuth = true;
		}