/// <summary>
/// Asynchronous save of ObservableCollection<AccountList>.
/// </summary>
public async void SaveAccountList()
{
if (AccountsList == null)
{
return;
}
//remove all empty rows.
for (int i = AccountsList.Count - 1; i >= 0; i--)
{
if (AccountsList[i].IsEmpty)
{
AccountsList.RemoveAt(i);
}
}
KeyFile key;
if (File.Exists(settings.keyLocation))
{
//load key from appdata.
key = await CryptoTools.LoadStoredKeyFile(settings.keyLocation);
}
else
{
//create new keyfile if none created yet in appdata.
key = await CryptoTools.CreateStoredKeyFile(settings.keyLocation);
}
//encrypt accountlist into byte array.
byte[] listAsBytes = CryptoTools.EncryptData(key.key, key.IV, AccountsList);
//save encrypted accountlist
await FileManager.SaveFileAsync(settings.saveFileLocation, listAsBytes, false);
}
/// <summary>
/// Load app settings.
/// </summary>
/// <returns></returns>
public async Task <bool> LoadSettings()
{
byte[] o = await FileManager.OpenFile(Settings.SettingsFileURI);
if (o == null || o.Length <= 0)
{
settings = new Settings();
SaveSettings();
}
else
{
BinaryFormatter bf = new BinaryFormatter();
settings = (Settings)bf.Deserialize(new MemoryStream(o));
if (settings == null)
{
settings = new Settings();
SaveSettings();
}
}
o = await FileManager.OpenFile(settings.keyLocation);
if (o == null || o.Length < 0)
{
await CryptoTools.CreateStoredKeyFile(settings.keyLocation); //new KeyFile();
}
/* else
* {
* keyFile = await CryptoTools.LoadStoredKeyFile(settings.keyLocation);
* // BinaryFormatter bf = new BinaryFormatter();
* // keyFile = (KeyFile)bf.Deserialize(new MemoryStream(o));
* // if(keyFile == null)
* // {
* // keyFile = new KeyFile();
* // }
* }*/
return(true);
}
