是否可以在所有进程中的WCF数据服务中创建自定义QueryInterceptor而不是仅有一个?这是一个标准的QueryInterceptor:
[QueryInterceptor("Products")]
public Expression<Func<Product, bool>> OnQueryProducts()
{
var user = HttpContext.Current.User;
if (user.IsInRole("Administrator"))
return (Product p) => true;
else
return (Product p) => false;
}
我喜欢这样做:
[QueryInterceptor("*")]
public Expression<Func<Object, bool>> OnQueryProducts()
{
var user = HttpContext.Current.User;
if (user.IsInRole("Administrator"))
return (Object p) => true;
else
return (Object p) => false;
}
有没有办法或者我必须为我的所有实体整合一个接受器?
答案 0 :(得分:2)
不幸的是,您不能将通配符与QueryInterceptor一起使用,但是您可以通过覆盖DataService的OnStartProcessingRequest方法并检查用户的角色来获得与示例中相同的结果。
protected override void OnStartProcessingRequest(ProcessRequestArgs args)
{
var user = HttpContext.Current.User;
// Only Administrator users are allowed access
if (!user.IsInRole("Administrator"))
{
// Any other role throws a security exception
throw new SecurityException("You do not have permission to access this Service");
}
base.OnStartProcessingRequest(args);
}