Steam_Desktop_Authenticator.LoginForm.HandleManifest C# (CSharp) Method

        private void HandleManifest(Manifest man, bool IsRefreshing = false)
        {
            string passKey = null;
            if (man.Entries.Count == 0)
            {
                passKey = man.PromptSetupPassKey("Please enter an encryption passkey. Leave blank or hit cancel to not encrypt (VERY INSECURE).");
            }
            else if (man.Entries.Count > 0 && man.Encrypted)
            {
                bool passKeyValid = false;
                while (!passKeyValid)
                {
                    InputForm passKeyForm = new InputForm("Please enter your current encryption passkey.");
                    passKeyForm.ShowDialog();
                    if (!passKeyForm.Canceled)
                    {
                        passKey = passKeyForm.txtBox.Text;
                        passKeyValid = man.VerifyPasskey(passKey);
                        if (!passKeyValid)
                        {
                            MessageBox.Show("That passkey is invalid. Please enter the same passkey you used for your other accounts.");
                        }
                    }
                    else
                    {
                        this.Close();
                        return;
                    }
                }
            }

            man.SaveAccount(androidAccount, passKey != null, passKey);
            if (IsRefreshing)
            {
                MessageBox.Show("Your login session was refreshed.");
            }
            else
            {
                MessageBox.Show("Mobile authenticator successfully linked. Please write down your revocation code: " + androidAccount.RevocationCode);
            }
            this.Close();
        }