public Task OnReceiveAssociationRequestAsync(FoDicomNetwork.DicomAssociation association)
{
_associationDataProvider = UserState as IApplicationEntityManager;
if (_associationDataProvider is null)
{
throw new ArgumentNullException("userState must be an instance of IAssociationDataProvider");
}
_logger = _associationDataProvider.GetLogger <ScpServiceInternal>(Association.CalledAE);
_associationId = _associationDataProvider.NextAssociationNumber();
_associationIdStr = $"#{_associationId} {association.RemoteHost}:{association.RemotePort}";
_loggerScope = _logger?.BeginScope(new Dictionary <string, object> {
{ "Association", _associationIdStr }
});
_logger?.Log(LogLevel.Information, "Association received from {0}:{1}", association.RemoteHost, association.RemotePort);
if (!IsValidSourceAe(association.CallingAE))
{
return(SendAssociationRejectAsync(
FoDicomNetwork.DicomRejectResult.Permanent,
FoDicomNetwork.DicomRejectSource.ServiceUser,
FoDicomNetwork.DicomRejectReason.CallingAENotRecognized));
}
if (!IsValidCalledAe(association.CalledAE))
{
return(SendAssociationRejectAsync(
FoDicomNetwork.DicomRejectResult.Permanent,
FoDicomNetwork.DicomRejectSource.ServiceUser,
FoDicomNetwork.DicomRejectReason.CalledAENotRecognized));
}
foreach (var pc in association.PresentationContexts)
{
if (pc.AbstractSyntax == FoDicom.DicomUID.Verification)
{
if (!_associationDataProvider.Configuration.Value.Dicom.Scp.Verification.Enabled)
{
_logger?.Log(LogLevel.Warning, "Verification service is disabled: rejecting association");
return(SendAssociationRejectAsync(
FoDicomNetwork.DicomRejectResult.Permanent,
FoDicomNetwork.DicomRejectSource.ServiceUser,
FoDicomNetwork.DicomRejectReason.ApplicationContextNotSupported
));
}
pc.AcceptTransferSyntaxes(_associationDataProvider.Configuration.Value.Dicom.Scp.Verification.TransferSyntaxes.ToDicomTransferSyntaxArray());
}
else if (pc.AbstractSyntax.StorageCategory != FoDicom.DicomStorageCategory.None)
{
// Accept any proposed TS
pc.AcceptTransferSyntaxes(pc.GetTransferSyntaxes().ToArray());
}
}
return(SendAssociationAcceptAsync(association));
}
public ScpService(IServiceScopeFactory serviceScopeFactory,
IApplicationEntityManager applicationEntityManager,
IHostApplicationLifetime appLifetime,
IOptions <DicomAdapterConfiguration> dicomAdapterConfiguration)
{
_serviceScope = serviceScopeFactory.CreateScope();
_serviceProvider = _serviceScope.ServiceProvider;
_associationDataProvider = applicationEntityManager ?? throw new ArgumentNullException(nameof(applicationEntityManager));
var logginFactory = _serviceProvider.GetService <ILoggerFactory>();
_logger = logginFactory.CreateLogger <ScpService>();
_appLifetime = appLifetime ?? throw new ArgumentNullException(nameof(appLifetime));
_dicomAdapterConfiguration = dicomAdapterConfiguration ?? throw new ArgumentNullException(nameof(dicomAdapterConfiguration));
var preloadDictionary = DicomDictionary.Default;
}
