I've written a WCF duplex service and client. Everything works well until I try to call .Demand() in the client implementation. It appears that the the service invokes the callback method Anonymously. I think I am missing how to correctly configure the service.
Code used to create ServiceHost;
ServiceHost duplex = new ServiceHost(new ServerWCallbackImpl());
NetTcpBinding secureBinding = new NetTcpBinding(SecurityMode.Message);
secureBinding.Security.Message.ClientCredentialType = MessageCredentialType.Windows;
duplex.AddServiceEndpoint(typeof(IServerWithCallback),
secureBinding,
"net.tcp://localhost:9080/DataService");
Console.WriteLine(Thread.CurrentPrincipal.Identity.Name); //<-- this correctly shows the current principal
duplex.Open();
if (duplex.State == CommunicationState.Opened)
((ServerWCallbackImpl)duplex.SingletonInstance).Send("Hello World!");
Code used to create client;
CallbackImpl callbackInstance = new CallbackImpl();
NetTcpBinding secureBinding = new NetTcpBinding(SecurityMode.Message);
secureBinding.Security.Message.ClientCredentialType = MessageCredentialType.Windows;
DuplexChannelFactory<IServerWithCallback> cf = new DuplexChannelFactory<IServerWithCallback>(
callbackInstance,
secureBinding,
new EndpointAddress(requestingEndpointAddress));
cf.Credentials.Windows.AllowedImpersonationLevel = TokenImpersonationLevel.Impersonation;
cf.Credentials.Windows.ClientCredential = (NetworkCredential)CredentialCache.DefaultCredentials;
IServerWithCallback srv = cf.CreateChannel(new InstanceContext(callbackInstance));
srv.InitiateConversation();
Client implementation:
public void MethodOnClient(string message)
{
Console.WriteLine(Thread.CurrentPrincipal.Identity.Name); // <-- anonymous
PrincipalPermission p = new PrincipalPermission(@"DOMAIN\User", null);
p.Demand(); // <-- fails
}
How can I configure so that the ServiceHost correctly invokes the Callback with Windows credentials?