/// <summary>Load method override which initializes the <see cref="LicenseIDIdentifier"/> after loading new license content.</summary>
/// <param name="data">The license content being loaded.</param>
/// <returns>Returns true if successful. If false is returned, check the <see cref="License.LastError"/> property for details.</returns>
public override bool Load(string data)
{
bool result = base.Load(data);
//Initialize the identifier needed to validate the volume license.
LicenseIDIdentifierAlgorithm algorithm = new LicenseIDIdentifierAlgorithm();
CurrentIdentifiers.Add(algorithm.GetIdentifier(LicenseID)[0]);
return(result);
}
/// <summary>Validates the license.</summary>
/// <returns>Returns true if validation is successful and the license is valid. If false is returned, check the <see cref="License.LastError"/> property for details.</returns>
internal bool Validate()
{
//Make sure the option type is supported.
if (ProductOption.OptionType == LicenseProductOption.ProductOptionType.DownloadableLicenseWithTriggerCodeValidation)
{
LastError = new LicenseError(LicenseError.ERROR_INVALID_LICENSE_TYPE);
return(false);
}
//TODO: If you wish to have your volume licenses automatically refresh with SOLO Server, you may
// enable this by removing the second expression in the 'if' statement immediately below.
if (IsRefreshLicenseAttemptDue &&
ProductOption.OptionType != LicenseProductOption.ProductOptionType.VolumeLicense)
{
//If a refresh attempt should be made, try to perform a license refresh with SOLO Server.
if (!RefreshLicense() &&
(LastError.ErrorNumber != LicenseError.ERROR_WEBSERVICE_CALL_FAILED || IsRefreshLicenseRequired))
{
//The refresh failed and was required, or SOLO Server returned an error.
return(false);
}
}
//Create a list of validations to perform.
List <SystemValidation> validations = new List <SystemValidation>();
//Add a validation to make sure there is no active system clock tampering taking place.
validations.Add(new SystemClockValidation());
//Validate the Product ID authorized in the license to make sure the license file was issued for this application.
validations.Add(new LicenseProductValidation(this, ThisProductID));
//Validate the current identifiers by default.
List <SystemIdentifier> validationIdentifiers = CurrentIdentifiers;
if (ProductOption.OptionType == LicenseProductOption.ProductOptionType.VolumeLicense)
{
//This is a volume license, so only validate a single identifier for the License ID.
LicenseIDIdentifierAlgorithm alg = new LicenseIDIdentifierAlgorithm();
validationIdentifiers = alg.GetIdentifier(LicenseID);
}
//Add a validation to make sure this system is authorized to use the activated license. (This implements copy-protection.)
validations.Add(new SystemIdentifierValidation(
AuthorizedIdentifiers,
validationIdentifiers,
SystemIdentifierValidation.REQUIRE_EXACT_MATCH));
if (TypeOfLicense == LicenseTypes.TimeLimited)
{
//If the license is time-limited, make sure it is within its effective date/time period.
validations.Add(new LicenseEffectiveDateValidation(this));
}
//Run all of the validations (in the order they were added), and make sure all of them succeed.
foreach (SystemValidation validation in validations)
{
if (!validation.Validate())
{
LastError = validation.LastError;
return(false);
}
}
//If we got this far, all validations were successful, so return true to indicate success and a valid license.
return(true);
}
