/// <summary>
/// Saves keys
/// </summary>
private void OnSaveCommand()
{
// check app sid length
if (this.AppSidText.Length != 36)
{
DialogManager.ShowErrorDialog("Incorrect APP SID length! APP SID should be 36 symbols length.");
return;
}
// check app key length
if (this.AppKeyText.Length != 32)
{
DialogManager.ShowErrorDialog("Incorrect APP KEY length! APP KEY should be 32 symbols length.");
return;
}
// update keys to provide new values
CoreApi.UpdateKeys(this.AppKeyText, this.AppSidText);
// encrypt keys and save in settings
byte[] encryptedAppKey = SecurityUtility.Encrypt(Encoding.UTF8.GetBytes(this.AppKeyText));
byte[] encryptedAppSid = SecurityUtility.Encrypt(Encoding.UTF8.GetBytes(this.AppSidText));
UserSettingsUtility.SaveCredentials(encryptedAppKey, encryptedAppSid);
this.view.Close();
}
/// <summary>
/// Initializes a new instance of the <see cref="MainViewModel"/> class.
/// </summary>
public MainViewModel()
{
BusyIndicatorManager.EnabledChanged += this.BusyChanged;
this.tabViewModels = new ObservableCollection <TabViewModel>();
this.CanDrop = true;
this.StartPanelVisibility = Visibility.Visible;
this.RecentFiles = new ObservableCollection <string>(UserSettingsUtility.LoadRecentFiles());
this.InitCommands();
}
/// <summary>
/// Initializes static members of the <see cref="CoreApi"/> class.
/// </summary>
static CoreApi()
{
// try loading keys from settings
byte[] appKey = UserSettingsUtility.LoadAppKey();
byte[] appSid = UserSettingsUtility.LoadAppSid();
// if any keys loaded, decrypt them
if (appKey != null && appSid != null)
{
AppSid = Encoding.UTF8.GetString(SecurityUtility.Decrpyt(appSid));
AppKey = Encoding.UTF8.GetString(SecurityUtility.Decrpyt(appKey));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="CredentialsViewModel"/> class
/// </summary>
public CredentialsViewModel()
{
// init commands
this.SaveCommand = new RelayCommand(x => this.OnSaveCommand());
this.CancelCommand = new RelayCommand(x => this.OnCancelCommand());
// init view
this.view = new CredentialsView(this);
// try loading keys
byte[] appKey = UserSettingsUtility.LoadAppKey();
byte[] appSid = UserSettingsUtility.LoadAppSid();
// decrypt loaded keys if any
if (appKey != null && appSid != null)
{
this.AppSidText = Encoding.UTF8.GetString(SecurityUtility.Decrpyt(appSid));
this.AppKeyText = Encoding.UTF8.GetString(SecurityUtility.Decrpyt(appKey));
}
// display view
this.view.ShowDialog();
}
