如何将"传递参数"添加到自定义AuthorizeAttribute

Question

我想保护控制器操作,以便只有角色为"Admin"的用户可以进入.
我不使用角色/成员资格提供程序,一切都是自定义的.
到目前为止我这样做了:

public class CustomAuthorizeAttribute : AuthorizeAttribute
{
    protected override bool AuthorizeCore(HttpContextBase httpContext)
    {
        var isAuthorized = base.AuthorizeCore(httpContext);            
        if (!isAuthorized)
            return false;

        string username = httpContext.User.Identity.Name;

        UserRepository repo = new UserRepository();

        return repo.IsUserInRole(username, "Admin");
    }
}

请注意,我在这里硬编码了"Admin".
我希望这是动态的.
这项工作现在:

[CustomAuthorize]
        public ActionResult RestrictedArea()...

但是我想要这样的东西:

[CustomAuthorize(Roles = "Admin")]
        public ActionResult RestrictedArea()

Answer 1

AuthorizeAttribute已经拥有Roles可用于此目的的财产:

public class CustomAuthorizeAttribute : AuthorizeAttribute
{
    protected override bool AuthorizeCore(HttpContextBase httpContext)
    {
        var isAuthorized = base.AuthorizeCore(httpContext);            
        if (!isAuthorized)
        {
            return false;
        }

        string username = httpContext.User.Identity.Name;

        UserRepository repo = new UserRepository();

        return repo.IsUserInRole(username, this.Roles);
    }
}