在asp.net MVC中授权属性和jquery AJAX

Question

我使用jquery ajax函数提交表单.用户必须登录,否则他们必须重定向到登录页面.我已经使用了Authorize()属性.

[Authorize]
public ActionResult Creat()
{
....
}

如果用户没有登录操作返回登录页面到jquery的ajax函数,它会显示在同一页面上,但我想将用户重定向到登录页面.有什么解决方案吗？

Answer 1

工作示例:https://github.com/ronnieoverby/mvc-ajax-auth

重要部分:

AjaxAuthorizeAttribute:

using System.Web.Mvc;

namespace MvcApplication1
{
    public class AjaxAuthorizeAttribute : AuthorizeAttribute
    {
        protected override void HandleUnauthorizedRequest(AuthorizationContext context)
        {
            if (context.HttpContext.Request.IsAjaxRequest())
            {
                var urlHelper = new UrlHelper(context.RequestContext);
                context.HttpContext.Response.StatusCode = 403;
                context.Result = new JsonResult
                {
                    Data = new
                    {
                        Error = "NotAuthorized",
                        LogOnUrl = urlHelper.Action("LogOn", "Account")
                    },
                    JsonRequestBehavior = JsonRequestBehavior.AllowGet
                };
            }
            else
            {
                base.HandleUnauthorizedRequest(context);
            }
        }
    }
}

使用Javascript:

    $(function () {
        $(document).ajaxError(function (e, xhr) {
            if (xhr.status == 403) {
                var response = $.parseJSON(xhr.responseText);
                window.location = response.LogOnUrl;
            }
        });
    });

在控制器中使用该属性:

    [AjaxAuthorize]
    public ActionResult Secret()
    {
        return PartialView();
    }

做一些ajax:

@Ajax.ActionLink("Get Secret", "Secret", new AjaxOptions { UpdateTargetId = "secretArea", })

<div id="secretArea"></div>

Answer 2

只是#Ronnie答案的一个方便的补充

如果你想保持页面网址重定向.

 var pathname = window.location.pathname;
        if (xhr.status == 403) {
                var response = $.parseJSON(xhr.responseText);
                window.location = response.LogOnUrl + '?ReturnUrl=' + pathname;
            }