/// <summary>
/// Connection to a remote DICOM application via TLS.
/// </summary>
/// <param name="assoc"></param>
/// <param name="handler"></param>
/// <returns></returns>
public static DicomClient ConnectTLS(AssociationParameters assoc, IDicomClientHandler handler)
{
DicomClient client = new DicomClient(assoc, handler);
client.ConnectTLS();
return(client);
}
protected AssociationParameters(AssociationParameters parameters)
{
DisableNagle = NetworkSettings.Default.DisableNagle;
RemoteMaxOperationsPerformed = 1;
RemoteMaxOperationsInvoked = 1;
TotalDimseReceived = 0;
TotalBytesSent = 0;
TotalBytesRead = 0;
ApplicationContextName = parameters.ApplicationContextName;
CalledAE = parameters.CalledAE;
CallingAE = parameters.CallingAE;
ImplementationClass = parameters.ImplementationClass;
ImplementationVersion = parameters.ImplementationVersion;
LocalEndPoint = parameters.LocalEndPoint;
LocalMaximumPduLength = parameters.LocalMaximumPduLength;
RemoteMaximumPduLength = parameters.RemoteMaximumPduLength;
ReadTimeout = parameters.ReadTimeout;
ReceiveBufferSize = parameters.ReceiveBufferSize;
RemoteEndPoint = parameters.RemoteEndPoint;
SendBufferSize = parameters.SendBufferSize;
WriteTimeout = parameters.WriteTimeout;
ConnectTimeout = parameters.ConnectTimeout;
foreach (byte id in parameters._presContexts.Keys)
{
AddPresentationContext(id, parameters._presContexts[id].AbstractSyntax);
foreach (TransferSyntax ts in parameters._presContexts[id].GetTransfers())
{
AddTransferSyntax(id, ts);
}
SetRoleSelect(id, parameters._presContexts[id].GetRoleSelect());
}
}
private static bool NegotiateAssociation(AssociationParameters cp, ServerAssociationParameters sp)
{
foreach (DicomPresContext clientContext in cp.GetPresentationContexts())
{
TransferSyntax selectedSyntax = null;
foreach (DicomPresContext serverContext in sp.GetPresentationContexts())
{
if (clientContext.AbstractSyntax.Uid.Equals(serverContext.AbstractSyntax.Uid))
{
foreach (TransferSyntax ts in serverContext.GetTransfers())
{
if (clientContext.HasTransfer(ts))
{
selectedSyntax = ts;
break;
}
}
}
if (selectedSyntax != null)
{
break;
}
}
if (selectedSyntax != null)
{
clientContext.ClearTransfers();
clientContext.AddTransfer(selectedSyntax);
clientContext.SetResult(DicomPresContextResult.Accept);
}
else
{
// No contexts accepted, set if abstract or transfer syntax reject
clientContext.SetResult(0 == sp.FindAbstractSyntax(clientContext.AbstractSyntax)
? DicomPresContextResult.RejectAbstractSyntaxNotSupported
: DicomPresContextResult.RejectTransferSyntaxesNotSupported);
}
}
bool anyValidContexts = false;
foreach (DicomPresContext clientContext in cp.GetPresentationContexts())
{
if (clientContext.Result == DicomPresContextResult.Accept)
{
anyValidContexts = true;
break;
}
}
if (anyValidContexts == false)
{
return(false);
}
return(true);
}
private DicomClient(AssociationParameters assoc, IDicomClientHandler handler)
{
_remoteEndPoint = assoc.RemoteEndPoint;
_socket = null;
_network = null;
_closedEvent = null;
_timeout = 10;
_handler = handler;
_assoc = assoc;
}
protected override void OnReceiveAssociateAccept(AssociationParameters association)
{
try
{
_handler.OnReceiveAssociateAccept(this, association as ClientAssociationParameters);
}
catch (Exception e)
{
OnUserException(e, "Unexpected exception on OnReceiveAssociateAccept");
}
}
public AAssociateAC(AssociationParameters assoc)
{
_assoc = assoc;
}