ServiceStack.LicenseUtils.ToLicenseKey C# (CSharp) Method

        public static LicenseKey ToLicenseKey(this string licenseKeyText)
        {
            licenseKeyText = Regex.Replace(licenseKeyText, @"\s+", "");
            var parts = licenseKeyText.SplitOnFirst('-');
            var refId = parts[0];
            var base64 = parts[1];
            var jsv = Convert.FromBase64String(base64).FromUtf8Bytes();

            var hold = JsConfig<DateTime>.DeSerializeFn;
            var holdRaw = JsConfig<DateTime>.RawDeserializeFn;

            try
            {
                JsConfig<DateTime>.DeSerializeFn = null;
                JsConfig<DateTime>.RawDeserializeFn = null;

                var key = jsv.FromJsv<LicenseKey>();

                if (key.Ref != refId)
                    throw new LicenseException("The license '{0}' is not assigned to CustomerId '{1}'.".Fmt(base64)).Trace();

                return key;
            }
            finally
            {
                JsConfig<DateTime>.DeSerializeFn = hold;
                JsConfig<DateTime>.RawDeserializeFn = holdRaw;
            }
        }