public Task <bool> GetUserAccount(string encryptedString)
{
if (encryptedString == null)
{
throw new ArgumentNullException("Encrypted string with account credentials is null!");
}
if (String.IsNullOrEmpty(encryptedString.Trim()))
{
throw new NotSupportedException("This type of encrypted string not supported!");
}
var decryptedString = AccountEncryptionToBase64.Decode(encryptedString);
var splittedString = decryptedString.Split(':');
return(Task.FromResult(_accounts.Values.Any(account =>
account.Login == splittedString[0] && account.Password == splittedString[1])));
}
public async Task <string> RegisterAsync(string login, string password)
{
var release = await _semaphore.WaitAsync(1000);
try
{
var id = _accounts.Count + 1;
var encryptedKey = (AccountEncryptionToBase64.Encode($"{login}:{password}"));
if (_accounts.Any(account => account.Value.Login == login))
{
throw new ArgumentException("Account with this login already exists");
}
_accounts.TryAdd(encryptedKey, new Account(id, login, password));
return(encryptedKey);
}
finally
{
if (release)
{
_semaphore.Release();
}
}
}
