如何让ASP.NET MVC IAuthorizationFilter尊重IgnoreRoute的

Question

我使用流行的Elmah.MVC error logging NuGet包。这样我就可以导航到/elmah来查看我的错误日志。我有以下IgnoreRoute语句，以便MVC忽略/elmah路由：

routes.IgnoreRoute("elmah");
routes.IgnoreRoute("elmah/{*pathinfo}");

我已经编写了以下授权过滤器。当我导航到/elmah时，如何停止执行下面的过滤器。当然，它肯定有某种方法来尊重我告诉它忽略的路由？

public class MyFilterAttribute : FilterAttribute, IAuthorizationFilter
{
    public void OnAuthorization(AuthorizationContext filterContext)
    {
        // I don't want /elmah routes to execute this.
    }
}

Answer 1

解决方案是检查正在执行的ControllerName，如果是Elmah，则返回并忽略此请求。

public class MyFilterAttribute : FilterAttribute, IAuthorizationFilter
{
    public void OnAuthorization(AuthorizationContext filterContext)
    {
        // I don't want /elmah routes to execute for this filter.
        string controllerName = filterContext.ActionDescriptor.ControllerDescriptor.ControllerName;
        if (string.Equals(controllerName, "Elmah", StringComparison.Ordinal))
        {
            return;
        }
    }
}