private void AddUserAction()
 {
     if (session != null)
     {
         Console.WriteLine("username: "******"password: "******"Please input session information.");
     }
 }
 protected void LoginUser(VooProtocol protocol)
 {
     Console.WriteLine("Application: LoginUser(VooProtocol protocol)");
     currentUser = FindUser(protocol.Get("username"), protocol.Get("password"), true);
     if (currentUser != null)
     {
         Console.WriteLine("Application: LoginUser -> username = '******', password = '******'",
             currentUser.UserName, currentUser.Password);
     }
     else
     {
         Console.WriteLine("Application: LoginUser -> User can't be found.");
     }
 }
 protected void RegisterUser(VooProtocol protocol)
 {
     Console.WriteLine("Application: RegisterUser(VooProtocol protocol)");
     User user = new User(protocol.Get("username"), protocol.Get("password"));
     Console.WriteLine("Application: RegisterUser -> username = '******', password = '******'", user.UserName, user.Password);
     users.Add(user);
 }
 public static String CreateAuthUser(User user)
 {
     return CreateAuthUser(user.UserName, user.Password);
 }