/// <summary>
/// Prepares OPC UA server for operating.
/// </summary>
private async Task PrepareOpcServer()
{
// create OPC application instance
opcApp = new ApplicationInstance
{
ApplicationName = DataSourceConfig.Name,
ApplicationType = ApplicationType.Server,
ConfigSectionName = "Scada.Comm.Drivers.DrvDsOpcUaServer"
};
// load the application configuration
WriteConfigFile(out string configFileName);
ApplicationConfiguration opcConfig = await opcApp.LoadApplicationConfiguration(configFileName, false);
// check the application certificate
bool haveAppCertificate = await opcApp.CheckApplicationInstanceCertificate(false,
CertificateFactory.DefaultKeySize, CertificateFactory.DefaultLifeTime);
if (!haveAppCertificate)
{
throw new ScadaException(Locale.IsRussian ?
"Сертификат экземпляра приложения недействителен!" :
"Application instance certificate invalid!");
}
if (!opcConfig.SecurityConfiguration.AutoAcceptUntrustedCertificates)
{
opcConfig.CertificateValidator.CertificateValidation += CertificateValidator_CertificateValidation;
}
// create OPC server
opcServer = new CustomServer(CommContext, options, dsLog);
}