Question

I need to authenticate every request to wcf services

 public class AuthenticationInterceptor : RequestInterceptor
    {
        public AuthenticationInterceptor() : base(false)
        {
        }

        public override void ProcessRequest(ref System.ServiceModel.Channels.RequestContext requestContext)
        {
          //How to access Request Header (Authorization header) from here?
        }
    }

Answer 1

You can get the headers from the System.ServiceModel.Channels.Message, so try

var message = requestContext.RequestMessage;
var request = (HttpRequestMessageProperty)message.Properties[HttpRequestMessageProperty.Name];

string authorization = request.Headers[HttpRequestHeader.Authorization];