访问显示链接仅 [英] Display links with access only

问题描述

有什么办法如何显示只访问，这是由

Is there any way how to display only links with access, which is defined by

[Authorize(Roles = "SomeRole")]

在控制器？

推荐答案

我不相信有这样做没有反映一个简单的解决方案的控制器，获得在动作和检查 AuthorizationFilters 。

I don't believe that there is a simple solution for doing this without reflecting the Controller, getting the Action and checking the AuthorizationFilters.

随着中说，另一种解决方案是创建一个 Html.ActionLink 的扩展方法重载，它接受一个角色名称和检查用户。 IsInRole（角色名）。只有输出，如果用户的链接访问指定的角色。

With that said, an alternative solution might be to create an extension method overload for Html.ActionLink which takes a role name and check User.IsInRole(roleName). Only output a link if the user has access to the specified role.

事情是这样的：

public static class EntentionMethods
{
    public static MvcHtmlString ActionLink(this HtmlHelper helper, string linkText, string actionName, string controllerName, string roleName)
    {
        if (!helper.ViewContext.RequestContext.HttpContext.User.IsInRole(roleName))
        {
            return MvcHtmlString.Empty;
        }

        return helper.ActionLink(linkText, actionName, controllerName);
    }
}

不是pretty你可能一直希望，但是这往往服务的需求。

Not a pretty as you might have been hoping, but this often serves the needs.

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