/// <summary>
/// Do the actual verification if an association is acceptable.
/// </summary>
/// <remarks>
/// This method primarily checks the remote AE title to see if it is a valid device that can
/// connect to the partition.
/// </remarks>
/// <param name="context">Generic parameter passed in, is a DicomScpParameters instance.</param>
/// <param name="assocParms">The association parameters.</param>
/// <param name="result">Output parameter with the DicomRejectResult for rejecting the association.</param>
/// <param name="reason">Output parameter with the DicomRejectReason for rejecting the association.</param>
/// <returns>true if the association should be accepted, false if it should be rejected.</returns>
public static bool Verify(DicomScpContext context, ServerAssociationParameters assocParms,
out DicomRejectResult result, out DicomRejectReason reason)
{
bool isNew;
Device device = DeviceManager.LookupDevice(context.Partition, assocParms, out isNew);
if (device == null)
{
if (context.Partition.AcceptAnyDevice)
{
reason = DicomRejectReason.NoReasonGiven;
result = DicomRejectResult.Permanent;
return true;
}
reason = DicomRejectReason.CallingAENotRecognized;
result = DicomRejectResult.Permanent;
return false;
}
if (device.Enabled == false)
{
Platform.Log(LogLevel.Error, "Rejecting association from {0} to {1}. Device is disabled.",
assocParms.CallingAE, assocParms.CalledAE);
reason = DicomRejectReason.CallingAENotRecognized;
result = DicomRejectResult.Permanent;
return false;
}
reason = DicomRejectReason.NoReasonGiven;
result = DicomRejectResult.Permanent;
return true;
}
private void StartListeners(ServerPartition part)
{
var parms = new DicomScpContext(part);
//TODO support IPV6
var scp = new DicomScp<DicomScpContext>(parms, AssociationVerifier.Verify)
{
ListenPort = part.Port,
AeTitle = part.AeTitle
};
if (scp.Start(IPAddress.Any))
{
_listenerList.Add(scp);
Platform.Log(LogLevel.Info, "Start listen on {0} for server partition {1}",
part.Port, part.Description);
}
else
{
Platform.Log(LogLevel.Error, "Unable to listen on {0} for server partition {1}",
part.Port, part.Description);
Platform.Log(LogLevel.Error, "Partition {0} will not accept any DICOM associations", part.Description);
}
}
