public async Task <LicenseCheckResult> CheckLicenseStateAsync()
{
log.Debug("CheckLicenseStateAsync;");
// Get stored license info
LicenseInfo lic = GetStoredLicenseInfo();
if (lic == null) // newly installed, not registered
{
return new LicenseCheckResult
{
State = LicenseState.Unregistered,
Message = "未注册 License 或注册数据损坏。",
}
}
;
if (!lic.Hardware.Equals(hardware)) // stored license not match current machine
{
return new LicenseCheckResult
{
State = LicenseState.MachineNotMatch,
Message = "License 注册信息与设备不符。",
}
}
;
try
{
var tuple = await CheckLicensesByServiceAsync(lic);
bool foundActiveKey = tuple.Item1;
int amount = tuple.Item2;
lic.Counter = this.MaxCheckPostponeCount;
if (!foundActiveKey)
{
return new LicenseCheckResult
{
State = LicenseState.NoValidLicense,
Message = "未找到有效期内的 License。",
}
}
;
return(new LicenseCheckResult
{
State = LicenseState.OK,
Amount = amount,
Message = "License 正常。",
});
}
catch (EndpointNotFoundException ex)
{
log.Warn(ex.Message, ex);
if (!lic.CountDown())
{
return new LicenseCheckResult
{
State = LicenseState.CheckByServiceRequired,
Message = "无法连接 License 服务。",
}
}
;
if (lic.IsExpired(DateTime.Today))
{
return new LicenseCheckResult
{
State = LicenseState.NoValidLicense,
Message = "无法连接 License 服务，本机 License 已过期。",
}
}
;
return(new LicenseCheckResult
{
State = LicenseState.CheckByServicePostponed,
Message = "无法连接 License 服务，本机 License 尚未过期，剩余 " + lic.Counter + " 次检查。",
});
}
finally
{
StoreLicenseInfo(lic);
}
}
