public DicomPresContext(byte pcid, SopClass abstractSyntax) {
_pcid = pcid;
_result = DicomPresContextResult.Proposed;
_roles = DicomRoleSelection.Disabled;
_abstract = abstractSyntax;
if (abstractSyntax.Uid.Length == 0)
throw new DicomException("Invalid abstract syntax for presentation context, UID is zero length.");
_transfers = new List<TransferSyntax>();
}
public DicomPresContext(byte pcid, SopClass abstractSyntax)
{
_pcid = pcid;
_result = DicomPresContextResult.Proposed;
_roles = DicomRoleSelection.Disabled;
_abstract = abstractSyntax;
if (abstractSyntax.Uid.Length == 0)
{
throw new DicomException("Invalid abstract syntax for presentation context, UID is zero length.");
}
_transfers = new List <TransferSyntax>();
}
void IDicomServerHandler.OnReceiveAssociateRequest(DicomServer server, ServerAssociationParameters association)
{
if (_verifier != null)
{
DicomRejectResult result;
DicomRejectReason reason;
bool verified = _verifier(_context, association, out result, out reason);
if (verified == false)
{
server.SendAssociateReject(result, DicomRejectSource.ServiceUser, reason);
LogAdapter.Logger.Info("Association rejected from {0} to {1}",
association.CallingAE, association.CalledAE);
return;
}
}
// Let the extensions have its say on whether a presentation context is really acceptable.
//
bool atLeastOneAccepted = false;
foreach (byte pcid in association.GetPresentationContextIDs())
{
if (association.GetPresentationContextResult(pcid) == DicomPresContextResult.Accept)
{
IDicomScp <TContext> scp = _extensionList[pcid];
DicomPresContextResult res = scp.VerifyAssociation(association, pcid);
if (res != DicomPresContextResult.Accept)
{
association.GetPresentationContext(pcid).ClearTransfers();
association.SetPresentationContextResult(pcid, res);
}
else
{
atLeastOneAccepted = true;
}
}
}
if (!atLeastOneAccepted)
{
LogAdapter.Logger.Info("None of the proposed presentation context is accepted. Rejecting association from {0} to {1}", association.CallingAE, association.CalledAE);
server.SendAssociateReject(DicomRejectResult.Permanent, DicomRejectSource.ServiceUser, DicomRejectReason.NoReasonGiven);
return;
}
server.SendAssociateAccept(association);
// Optimization to speed query performance
Task.Factory.StartNew(() => LogAdapter.Logger.Info("Received association:\r\n{0}", association.ToString()));
}
/// <summary>
/// Verify a presentation context.
/// </summary>
/// <param name="association"></param>
/// <param name="pcid"></param>
/// <returns></returns>
public DicomPresContextResult VerifyAssociation(AssociationParameters association, byte pcid)
{
bool isNew;
Device = DeviceManager.LookupDevice(Partition, association, out isNew);
// Let the subclass perform the verification
DicomPresContextResult result = OnVerifyAssociation(association, pcid);
if (result != DicomPresContextResult.Accept)
{
Platform.Log(LogLevel.Debug, "Rejecting Presentation Context {0}:{1} in association between {2} and {3}.",
pcid, association.GetAbstractSyntax(pcid).Description,
association.CallingAE, association.CalledAE);
}
return(result);
}
internal void AddPresentationContext(byte pcid, DicomUid abstractSyntax, TransferSyntax transferSyntax, DicomPresContextResult result) {
_presContexts.Add(pcid, new DicomPresContext(pcid, SopClass.GetSopClass(abstractSyntax.UID), transferSyntax, result));
}
/// <summary>
/// Sets the result of the specified Presentation Context.
/// </summary>
/// <param name="pcid">Presentation Context ID</param>
/// <param name="result">Result</param>
public void SetPresentationContextResult(byte pcid, DicomPresContextResult result) {
GetPresentationContext(pcid).SetResult(result);
}
public void SetResult(DicomPresContextResult result) {
_result = result;
}
internal void AddPresentationContext(byte pcid, DicomUid abstractSyntax, TransferSyntax transferSyntax, DicomPresContextResult result)
{
_presContexts.Add(pcid, new DicomPresContext(pcid, SopClass.GetSopClass(abstractSyntax.UID), transferSyntax, result));
}
/// <summary>
/// Sets the result of the specified Presentation Context.
/// </summary>
/// <param name="pcid">Presentation Context ID</param>
/// <param name="result">Result</param>
public void SetPresentationContextResult(byte pcid, DicomPresContextResult result)
{
GetPresentationContext(pcid).SetResult(result);
}
public void SetResult(DicomPresContextResult result)
{
_result = result;
}
