Steam_Desktop_Authenticator.LoginForm.FinishExtract C# (CSharp) Method

        private async void FinishExtract(string username, string password)
        {
            long steamTime = await TimeAligner.GetSteamTimeAsync();
            Manifest man = Manifest.GetManifest();

            androidAccount.FullyEnrolled = true;

            UserLogin mUserLogin = new UserLogin(username, password);
            LoginResult response = LoginResult.BadCredentials;

            while ((response = mUserLogin.DoLogin()) != LoginResult.LoginOkay)
            {
                switch (response)
                {
                    case LoginResult.NeedEmail:
                        InputForm emailForm = new InputForm("Enter the code sent to your email:");
                        emailForm.ShowDialog();
                        if (emailForm.Canceled)
                        {
                            this.Close();
                            return;
                        }

                        mUserLogin.EmailCode = emailForm.txtBox.Text;
                        break;

                    case LoginResult.NeedCaptcha:
                        CaptchaForm captchaForm = new CaptchaForm(mUserLogin.CaptchaGID);
                        captchaForm.ShowDialog();
                        if (captchaForm.Canceled)
                        {
                            this.Close();
                            return;
                        }

                        mUserLogin.CaptchaText = captchaForm.CaptchaCode;
                        break;

                    case LoginResult.Need2FA:
                        mUserLogin.TwoFactorCode = androidAccount.GenerateSteamGuardCodeForTime(steamTime);
                        break;

                    case LoginResult.BadRSA:
                        MessageBox.Show("Error logging in: Steam returned \"BadRSA\".", "Login Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        this.Close();
                        return;

                    case LoginResult.BadCredentials:
                        MessageBox.Show("Error logging in: Username or password was incorrect.", "Login Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        this.Close();
                        return;

                    case LoginResult.TooManyFailedLogins:
                        MessageBox.Show("Error logging in: Too many failed logins, try again later.", "Login Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        this.Close();
                        return;

                    case LoginResult.GeneralFailure:
                        MessageBox.Show("Error logging in: Steam returned \"GeneralFailure\".", "Login Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        this.Close();
                        return;
                }
            }

            androidAccount.Session = mUserLogin.Session;

            HandleManifest(man);
        }