private async void MetroWindow_Loaded(object sender, RoutedEventArgs e)
{
YubiCryptOAuth2Token t = Properties.Settings.Default.AccessToken;
SettingKDFComboBox.ItemsSource = _engine.KeyDerivationFunctionProviders;
SettingSymmetricCipherComboBox.ItemsSource = _engine.SymmetricCipherProviders;
SettingMACComboBox.ItemsSource = _engine.MACProviders;
if (!await LoadSettings())
{
return;
}
if (t == null)
{
await this.ShowMessageAsync("No YubiCrypt Access Token", "In order to access the YubiCrypt platform you must first request an access token.\nPlease sign in.", MessageDialogStyle.Affirmative);
tabAccount.IsSelected = true;
return;
}
_client = new YubiCryptClient(API_CLIENT_ID, API_CLIENT_SECRET, t);
await LoadFiles();
}
private async Task LoadSettings()
{
YubiCryptOAuth2Token storedAccessToken = SettingsHelper.LoadSetting <YubiCryptOAuth2Token>(Consts.SETTINGS_ACCESS_TOKEN_KEY);
TFTokenData storedTokenSecretData = SettingsHelper.LoadSetting <TFTokenData>(Consts.SETTINGS_TOKEN_SECRET_KEY);
var localStoredFiles = await localStorageFolder.GetFilesAsync();
if (storedAccessToken != null)
{
authenticationInfoText.Text = string.Format("Access token expires: {0}", storedAccessToken.Expires);
DeleteTokenButton.IsEnabled = true;
}
else
{
authenticationInfoText.Text = "No access token.";
DeleteTokenButton.IsEnabled = false;
}
if (storedTokenSecretData != null)
{
keyStorageInfoText.Text = string.Format("Storing Secret Key for token with Serial# {0}.", storedTokenSecretData.SerialNumber);
DeleteKeyButton.IsEnabled = true;
}
else
{
keyStorageInfoText.Text = "No stored token information";
DeleteKeyButton.IsEnabled = false;
}
DeleteLocalFilesButton.IsEnabled = false;
LocalFileStorageInfo.Text = string.Format("{0} decrypted file(s) stored locally.", localStoredFiles.Count);
if (localStoredFiles.Count > 0)
{
DeleteLocalFilesButton.IsEnabled = true;
}
}
private bool CheckAccessToken(YubiCryptOAuth2Token storedAccessToken)
{
if (storedAccessToken == null || storedAccessToken.Expires < DateTime.Now)
{
return(false);
}
return(true);
}
private void UpdateTokenStatus()
{
YubiCryptOAuth2Token t = Properties.Settings.Default.AccessToken;
if (t != null)
{
statusMessage.Text = "Session token expires " + t.Expires;
}
else
{
statusMessage.Text = "No session token";
}
}
private async Task RefreshUI()
{
YubiCryptOAuth2Token storedAccessToken = SettingsHelper.LoadSetting <YubiCryptOAuth2Token>(Consts.SETTINGS_ACCESS_TOKEN_KEY);
if (CheckAccessToken(storedAccessToken))
{
client = new YubiCryptClient(clientId, clientSecret, storedAccessToken);
if (!IsTokenSecretAvailable())
{
await TokenSecretFirstTimeSetup();
return;
}
var secret = SettingsHelper.LoadSetting <TFTokenData>(Consts.SETTINGS_TOKEN_SECRET_KEY);
await LoadFileListAsync();
}
else
{
await RenewAccessToken();
}
}
public AccessTokenReceivedEventArgs(YubiCryptOAuth2Token accessToken)
{
AccessToken = accessToken;
}
