IServiceBehavior:防止对某些消息应用消息检查器

Question

在WCF服务上，我添加了一个属性[WebAppServiceBehavior]，用于检查服务消息中的某些标头的真实性。

我可以在一些特定的方法上使用其他属性来忽略这些检查吗。

我的问题是我在一个服务中有20个方法&我只想从该检查中排除2个方法。

[WebAppServiceBehavior]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class SyncService : ISyncService
    {
        public void DoWork() //check here 
        {
        }

public void DoWork2()//ignore here
        {
        }
}

  public class WebAppServiceBehavior : Attribute, IServiceBehavior
    {
        public void AddBindingParameters(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase, System.Collections.ObjectModel.Collection<ServiceEndpoint> endpoints, System.ServiceModel.Channels.BindingParameterCollection bindingParameters)
        {
        }
        public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
        {
            // throw new NotImplementedException();
            foreach (ChannelDispatcher ch in serviceHostBase.ChannelDispatchers)
            {
                foreach (var endptDispatcher in ch.Endpoints)
                {
                    endptDispatcher.DispatchRuntime.MessageInspectors.Add(new WebAppServiceMessageInspector());
                }
            }
        }
        public void Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
        {
        }
    }
  public class WebAppServiceMessageInspector : IDispatchMessageInspector
    {
        public object AfterReceiveRequest(ref System.ServiceModel.Channels.Message request, IClientChannel channel, InstanceContext instanceContext)
        {
            var prop = (HttpRequestMessageProperty)request.Properties[HttpRequestMessageProperty.Name];

                 HttpRequestMessageProperty httpProp = (HttpRequestMessageProperty)request.Properties[HttpRequestMessageProperty.Name];
        object operationName;
        request.Properties.TryGetValue(WebHttpDispatchOperationSelector.HttpOperationNamePropertyName, out operationName);
        if (httpProp != null && operationName != null && operationName.ToString().ToLower() == "options".ToLower())
        {   
                return "Options";            
        }

            /*if (ISValid Login ) //checking here For a specific header & returning error or success.
            {
                return instanceContext;
            }
            else
            {
                throw new FaultException("Invalid Authorization Code" + Ac.ErrorMsg);
            }*/
return instanceContext;
        }
        public void BeforeSendReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
        {
        }
    }

Answer 1

我在必须忽略检查的方法上添加了一个属性[IgnoreValidation]。

  public class IgnoreValidation : Attribute
    {
    }

来自上面例如：有问题：

[WebAppServiceBehavior]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class SyncService : ISyncService
    {
        public void DoWork() //check here 
        {
        }
 **[IgnoreValidation]**
public void DoWork2()//ignore here
        {
        }
}

&在Inspector中，我添加了用于检查操作是否具有属性的代码。

 string actionName = Convert.ToString(operationName);
            if (!string.IsNullOrEmpty(actionName))
            {
                var methodInfo = instanceContext.Host.Description.ServiceType.GetMethod(actionName);
                if (methodInfo != null)
                {
                    var customAttributes = methodInfo.GetCustomAttributes(false);
                    if (customAttributes.Any(ca => ca.GetType().Equals(typeof(IgnoreValidation))))
                    {
                        return instanceContext;
                    }
                }
            }