public static void SendAccept(Accept accept, Association asc)
{
var stream = asc.Stream;
byte[] message = accept.Write();
asc.Logger.Log("-->" + accept);
stream.Write(message, 0, message.Length);
}
public static void SetFinalContexts(this Association asc, Accept accept)
{
List<PresentationContext> final = new List<PresentationContext>();
foreach (var ctx in asc.PresentationContexts)
{
var accepted = accept.PresentationContexts.FirstOrDefault(p => p.Id == ctx.Id);
if (accepted != null && accepted.Reason == Enums.PresentationContextReason.ACCEPTANCE)
{
ctx.TransferSyntaxes.Clear();
ctx.TransferSyntaxes.Add(accepted.TransferSyntaxes.First());
final.Add(ctx);
}
}
asc.PresentationContexts = final;
}
public static Accept Generate(Request request, List <PresentationContext> contexts)
{
var accept = new Accept
{
ApplicationContext = request.ApplicationContext,
CalledEntityTitle = request.CalledEntityTitle,
CallingEntityTitle = request.CallingEntityTitle,
PresentationContexts = contexts,
ProtocolVersion = request.ProtocolVersion,
UserInfo = new UserInfo
{
AsynchronousOperations = null,
ImplementationUID = Constants.EVIL_DICOM_IMP_UID,
ImplementationVersion = Constants.EVIL_DICOM_IMP_VERSION,
MaxPDULength = request.UserInfo.MaxPDULength
}
};
return(accept);
}
public static Accept Generate(Request request, List<PresentationContext> contexts)
{
var accept = new Accept
{
ApplicationContext = request.ApplicationContext,
CalledEntityTitle = request.CalledEntityTitle,
CallingEntityTitle = request.CallingEntityTitle,
PresentationContexts = contexts,
ProtocolVersion = request.ProtocolVersion,
UserInfo = new UserInfo
{
AsynchronousOperations = null,
ImplementationUID = Constants.EVIL_DICOM_IMP_UID,
ImplementationVersion = Constants.EVIL_DICOM_IMP_VERSION,
MaxPDULength = request.UserInfo.MaxPDULength
}
};
return accept;
}
public void RaiseAssociationAcceptanceReceived(Accept acc, Association asc)
{
if (AssociationAcceptanceReceived != null)
{
AssociationAcceptanceReceived(acc, asc);
}
}
public static Message<Accept> ReadAssociationAccept(NetworkBinaryReader dr)
{
var acc = new Accept();
acc.PresentationContexts = new List<PresentationContext>();
dr.Skip(1); //PDU ID and Reserved Null Byte
int length = LengthReader.ReadBigEndian(dr.Take(4));
using (DICOMBinaryReader sub = dr.GetSubStream(length))
{
acc.ProtocolVersion = LengthReader.ReadBigEndian(sub, 2);
sub.Skip(2); //Reserved Null Bytes
acc.CalledEntityTitle = sub.ReadString(16).Trim();
acc.CallingEntityTitle = sub.ReadString(16).Trim();
sub.Skip(32); //Reserved Null Bytes
acc.ApplicationContext = ItemReader.ReadApplicationContext(sub);
while (sub.Peek(1).First() == (byte)ItemType.PRESENTATION_CONTEXT_ACCEPT)
{
PresentationContext context = ItemReader.ReadPresentationCtxAccept(sub);
if (context != null)
{
acc.PresentationContexts.Add(context);
}
}
acc.UserInfo = ItemReader.ReadUserInfo(sub);
}
return new Message<Accept> { Payload = acc, Type = MessageType.PDU };
}
