void GetAuthorization()
 {
     if (ConnectionInformation.AuthenticationMethod == AuthenticationMethod.None) return;
     string authorizationLine = GetHeaderValue("Authorization");
     if (string.IsNullOrEmpty(authorizationLine)) return;
     string[] split = authorizationLine.Split(' ');
     if (split.Length < 2) return;
     AuthenticationEventArgs e;
     switch (split[0])
     {
         case "Basic":
             byte[] buffer = Convert.FromBase64String(split[1]);
             string[] userpass = Encoding.ASCII.GetString(buffer).Split(':');
             e = new AuthenticationEventArgs(userpass[0], string.Empty, AuthenticationMethod.Basic);
             OnAuthenticateHandler(e);
             if (e.Accept && e.Password == userpass[1])
             {
                 ci.LogonUser = e.Login;
                 ci.AuthPassword = e.Password;
             }
             break;
         case "Digest":
             if (split.Length < 3)
             {
                 split = split[1].Split(',').Select(s => s.Trim()).ToArray();
             }
             var digest = new DigestAuthenticationProcessor(split);
             digest.Method = httpMethod;
             e = new AuthenticationEventArgs(digest.Username, string.Empty, AuthenticationMethod.Digest);
             OnAuthenticateHandler(e);
             if (e.Accept && digest.CheckValid(e.Password))
             {
                 ci.LogonUser = e.Login;
                 ci.AuthPassword = e.Password;
             }
             break;
     }
 }
 string ComposeDigestAuthenticationRequest()
 {
     var digest = new DigestAuthenticationProcessor(ci.RemoteIpAddress.ToString(), GetHeaderValue("Host"));
     return digest.ComposeRequest();
 }