/// <summary>
/// Checks the database to see if the key has already been used, and if it's a multi-use capable key
/// the number of valid activations will be check to ensure it doesn't exceed the maximum activation
/// count. If the key is hardware based it will check the existing key's fingerprint against the one
/// saved to see if it matches.
/// </summary>
/// <param name="licenseKey"></param>
/// <param name="licenseSetId"></param>
/// <param name="hardwareFingerprint"></param>
/// <returns></returns>
public bool IsKeyAvialable(string licenseKey, int licenseSetId, string hardwareFingerprint)
{
ServiceLicenseSet ls = _serviceProductsRepository.GetServiceLicenseSetById(licenseSetId);
ServiceLicenseKey lk = _serviceProductsRepository.GetServiceLicenseKeyByKeyLicenseSet(licenseKey, licenseSetId);
LicenseActivation la = _clientRepository.GetLicenseActivationByKeyAndSetId(licenseKey, licenseSetId);
if (la == null)
{
return(true);
}
Debug.WriteLine(ls.LicenseType.ToString());
// Enterprise and Unlimited keys have no activation restrictions
if (ls.LicenseType.IsSet(LicenseKeyTypeFlag.Unlimited) || ls.LicenseType.IsSet(LicenseKeyTypeFlag.Enterprise))
{
return(true);
}
// If the key is multi-user, ensure that they are under the MaxUsers count
if (ls.LicenseType.IsSet(LicenseKeyTypeFlag.MultiUser))
{
if (ls.MaxUsers.HasValue && ((lk.ActivationCount + 1) <= ls.MaxUsers.Value))
{
return(true);
}
}
// Hardware keys can activate as many times as they want, provided the hardware fingerprints match.
if (ls.LicenseType.IsSet(LicenseKeyTypeFlag.HardwareLock))
{
if (la != null)
{
if (la.HardwareHash == hardwareFingerprint)
{
return(true);
}
}
}
return(false);
}
