public static bool ValidateSystemTime(string productId)
{
var now = GetUtcTimestamp();
var lastRecordedTimeStr = LexDataStore.GetValue(productId, LexConstants.KEY_LAST_RECORDED_TIME);
if (ValidateTime((long)Int32.Parse(lastRecordedTimeStr), LexConstants.ALLOWED_CLOCK_OFFSET))
{
LexDataStore.SaveValue(productId, LexConstants.KEY_LAST_RECORDED_TIME, now.ToString());
return(true);
}
return(false);
}
public static int ValidateActivation(string jwt, string publicKey, string licenseKey, string productId, ActivationPayload activationPayload)
{
string payload = LexJwtService.VerifyToken(jwt, publicKey);
if (String.IsNullOrEmpty(payload))
{
return(LexStatusCodes.LA_FAIL);
}
var tempActivationPayload = JsonConvert.DeserializeObject <ActivationPayload>(payload);
activationPayload.CopyProperties(tempActivationPayload);
activationPayload.IsValid = true;
int status;
if (licenseKey != activationPayload.Key)
{
status = LexStatusCodes.LA_FAIL;
}
else if (productId != activationPayload.ProductId)
{
status = LexStatusCodes.LA_FAIL;
}
else if (activationPayload.Fingerprint != LexSystemInfo.GetFingerPrint())
{
status = LexStatusCodes.LA_E_MACHINE_FINGERPRINT;
}
else if (!ValidateTime(activationPayload.IssuedAt, activationPayload.AllowedClockOffset))
{
status = LexStatusCodes.LA_E_TIME;
}
else
{
status = LexValidator.ValidateActivationStatus(productId, activationPayload);
}
if (status == LexStatusCodes.LA_OK || status == LexStatusCodes.LA_EXPIRED || status == LexStatusCodes.LA_SUSPENDED || status == LexStatusCodes.LA_GRACE_PERIOD_OVER)
{
var now = GetUtcTimestamp();
LexDataStore.SaveValue(productId, LexConstants.KEY_LAST_RECORDED_TIME, now.ToString());
LexDataStore.SaveValue(productId, LexConstants.KEY_ACTIVATION_JWT, jwt);
}
else
{
LexDataStore.SaveValue(productId, LexConstants.KEY_LAST_RECORDED_TIME, activationPayload.IssuedAt.ToString());
}
return(status);
}