Wrong Thread.CurrentPrincipal in async WCF end-method

Question

I have a WCF service which has its Thread.CurrentPrincipal set in the ServiceConfiguration.ClaimsAuthorizationManager.

When I implement the ser

Answer 1

The valid approach to this is to create an extension:

public class SLOperationContext : IExtension
{
    private readonly IDictionary items;

    private static ReaderWriterLockSlim _instanceLock = new ReaderWriterLockSlim();

    private SLOperationContext()
    {
        items = new Dictionary();
    }

    public IDictionary Items
    {
        get { return items; }
    }

    public static SLOperationContext Current
    {
        get
        {
            SLOperationContext context = OperationContext.Current.Extensions.Find();
            if (context == null)
            {
                _instanceLock.EnterWriteLock();
                context = new SLOperationContext();
                OperationContext.Current.Extensions.Add(context);
                _instanceLock.ExitWriteLock();
            }
            return context;
        }
    }

    public void Attach(OperationContext owner) { }
    public void Detach(OperationContext owner) { }
}

Now this extension is used as a container for objects that you want to persist between thread switching as OperationContext.Current will remain the same.

Now you can use this in BeginMethod1 to save current user:

SLOperationContext.Current.Items["Principal"] = OperationContext.Current.ClaimsPrincipal;

And then in EndMethod1 you can get the user by typing:

ClaimsPrincipal principal = SLOperationContext.Current.Items["Principal"];

EDIT (Another approach):

public IAsyncResult BeginMethod1(AsyncCallback callback, object state)
{
    var task = Task.Factory.StartNew(this.WorkerFunction, state);

    var ec = ExecutionContext.Capture();

    return task.ContinueWith(res =>
        ExecutionContext.Run(ec, (_) => callback(task), null));
}