/// <summary>
/// Saves any data that we need to persist between app instances
/// </summary>
private void SavePersistentData()
{
if (this.Shared)
{
return;
}
var data = new PersistentData()
{
Character = this.Character
, RefreshToken = this.Token.RefreshToken
, Cookie = this.Cookie
};
data.Save();
}
/// <summary>
/// Loads persistent data from storage.
/// </summary>
/// <returns></returns>
public static PersistentData Load()
{
try
{
PersistentData data = null;
var pathData = Path.Combine(Application.UserAppDataPath, Filename);
if (!File.Exists(pathData))
{
return(data);
}
var cipherData = File.ReadAllBytes(pathData);
var entropy = cipherData.Take(20).ToArray();
var cipherText = cipherData.Skip(20).ToArray();
var plainText = ProtectedData.Unprotect(cipherText, entropy, DataProtectionScope.CurrentUser);
using (var stream = new MemoryStream(plainText))
{
var formatter = new BinaryFormatter();
data = formatter.Deserialize(stream) as PersistentData;
}
return(data);
}
catch (CryptographicException)
{
// we should be able to continue
return(null);
}
catch (Exception)
{
throw;
}
}