/// <summary>
/// Gets the account for the specified key.
/// </summary>
/// <returns>The account with Item1 as username and Item2 as password.</returns>
/// <param name="service">ISecureStorageService instance.</param>
/// <param name="key">Key.</param>
public static Tuple <string, string> GetAccount(this ISecureStorageService service, string key)
{
var record = service.Get(key);
if (string.IsNullOrWhiteSpace(record))
{
return(null);
}
var account = record.Split(new char[] { ';' }, 2);
if (int.TryParse(account[0], out int usernameLength))
{
var credentials = account.ElementAtOrDefault(1);
if (string.IsNullOrWhiteSpace(credentials))
{
return(null);
}
var username = credentials.Substring(0, usernameLength);
var password = credentials.Substring(usernameLength, credentials.Length - usernameLength);
return(new Tuple <string, string>(username, password));
}
return(null);
}
public async Task <bool> AuthenticateUser(string username, string password)
{
var user = await _secureStorageService.Get <UserAccountModel>(username);
if (user is null)
{
throw new UserAccounException("The account does not exist.");
}
if (user.Password != password)
{
throw new UserAccounException("Password incorrect.");
}
return(true);
}
