asp.net-mvc-3 – .NET MVC 3自定义控制器属性

public class MyAuthorizeAttribute : AuthorizeAttribute
{
    protected override bool AuthorizeCore(HttpContextBase httpContext)
    {
        var isAuthorized = base.AuthorizeCore(httpContext);
        if (isAuthorized)
        {
            var request = httpContext.Request;
            // Fetch "r" from the route data or request
            var r = request.RequestContext.RouteData.Values["r"] 
                ?? request["r"];
            var currentUser = httpContext.User.Identity.Name;
            if (!CheckIfRBelongsToTheCurrentLoggedInUser(currentUser,r))
            {
                return false;
            }
        }
        return isAuthorized;
    }
}

现在剩下的就是用这个自定义属性装饰你的控制器/动作：

[MyAuthorize]
public ActionResult Foo()
{
    //...
}

如果你想在ViewBag中添加一些东西,你可以暂时将它存储在AuthorizeCore方法内的httpContext.Items中,然后覆盖OnAuthorization方法并检查上下文中是否存在这个项目.如果它存在,您可以将其存储在filterContext.Controller.ViewBag中.