/// <summary>
/// Validates the specified license key via the Insight Server. Any
/// communication error with the Insight Server will cause the
/// check to fail.
/// </summary>
/// <param name="licenseKey">
/// License key to check.
/// </param>
/// <returns></returns>
public bool CheckLicense(string licenseKey)
{
try
{
var licensePromise = APIClient.CheckLicense(licenseKey);
licensePromise.Wait();
string checkJsonString = licensePromise.Result;
Dictionary <string, object> parsedResult;
parsedResult = (Dictionary <string, object>)fastJSON.JSON.Parse(checkJsonString);
// Set a custom variable for NLog, so that we can filter on it in LogEntries
NLog.GlobalDiagnosticsContext.Set("license_owner", parsedResult["owner"]);
string licenseMessage = String.Format("Owner: {0} -- valid until: {1}", parsedResult["owner"], parsedResult["expiration-time"]);
if (Convert.ToBoolean(parsedResult["valid"]))
{
Log.Info("License key is valid. {0}", licenseMessage);
return(true);
}
Log.Error("License key {0} is invalid! {1}", licenseKey, licenseMessage);
return(false);
}
catch (AggregateException ae)
{
ae.Handle((x) =>
{
Log.Warn(x, "Failed to validate license! Error:");
// This return does not mean that the license is OK, but to tell that
// the aggreagated exception is handled.
return(true);
});
}
catch (Exception e)
{
Log.Warn(e, "License check failed! Error:");
}
return(false);
}