自定义WebAPI身份验证-如何对HttpContext.Current.Request.LogonUserIdentity.Name进行身份验证

时间:2019-11-01 17:12:15

标签: c# asp.net-web-api windows-authentication asp.net-authorization

我有一个可以在公司网络中使用的webapi,并且仅具有经过Windows身份验证的用户。

我试图直接验证HttpContext.Current.Request.LogonUserIdentity.Name,因为HttpContext.Current.Request.LogonUserIdentity.IsAuthenticated返回false。

我这样做是为了避免非管理员用户的用户登录弹出窗口。

using System;
using System.Diagnostics;
using System.Web.Http;
using System.Web;
using System.Web.Http.Controllers;

namespace myAPI.Helpers
{

    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = true)]
    public class AuthorizeCustomAttribute : AuthorizeAttribute
    {
        public override void OnAuthorization(HttpActionContext actionContext)
        {

            // HttpContext.Current.User.Identity.Name is always empty at this point
            // and must authenticate first with HandleUnauthorizedRequest(actionContext)
            // but that pops up an annoying login screen,
            // HttpContext.Current.Request.LogonUserIdentity.Name has the value I need
            // but it is not authenticated which raises some security concerns

            // Check against a list of admins
            if (HttpContext.Current.Request.LogonUserIdentity.IsAuthenticated && Authentication.IsAdmin( HttpContext.Current.Request.LogonUserIdentity.Name ))
            {
                Debug.WriteLine("USER IS AUTHORIZED");
            }
            else
            {
                Debug.WriteLine("USER IS DENIED");
                //HandleUnauthorizedRequest(actionContext); // This will popup a login unless it is overridden
                actionContext.Response = new System.Net.Http.HttpResponseMessage(System.Net.HttpStatusCode.OK); // return a blank response instead
            }

        }
    }
}

1 个答案:

答案 0 :(得分:0)

这是我最简单的解决方案:

  • 仅检查已知管理员的身份验证
  • 重定向未经身份验证的管理员
  • 非管理员不会出现登录弹出窗口
using System;
using System.Diagnostics;
using System.Web.Http;
using System.Web;
using System.Web.Http.Controllers;

namespace myAPI.Helpers
{

    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = true)]
    public class AuthorizeCustomAttribute : AuthorizeAttribute
    {
        public override void OnAuthorization(HttpActionContext actionContext)
        {

            // Check against a list of admins
            if (Authentication.IsAdmin(HttpContext.Current.User.Identity.Name) || Authentication.IsAdmin( HttpContext.Current.Request.LogonUserIdentity.Name ))
            {
                if(HttpContext.Current.User.Identity.IsAuthenticated || HttpContext.Current.Request.LogonUserIdentity.IsAuthenticated )
                {
                    Debug.WriteLine("USER IS AUTHORIZED");
                } else
                {
                    Debug.WriteLine("USER IS AN ADMIN BUT IS UNAUTHENTICATED");
                    HandleUnauthorizedRequest(actionContext); // redirect to get authenticated
                }

            }
            else
            {
                Debug.WriteLine("USER IS NOT AN ADMIN AND IS DENIED");
                actionContext.Response = new System.Net.Http.HttpResponseMessage(System.Net.HttpStatusCode.OK); // return a blank response
            }

        }
    }
}