在MVC 5中使用自定义ActionFilterAttribute注销用户

本文关键字：自定义 ActionFilterAttribute 注销 用户 MVC | 更新日期: 2023-09-27 18:29:39

我有一个自定义ActionFilterAttribute，它确保Session中的值与数据库中的值匹配。如果值不匹配，它会将用户重定向到AccountController上的Login操作。

public class CheckSessionAttribute : ActionFilterAttribute, IAuthenticationFilter
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        if (filterContext.ActionDescriptor.GetCustomAttributes(typeof(AllowAnonymousAttribute), false).Any())
        {
            // If the action allows Anonymous users, no need to check the session
            return;
        }
        var session = filterContext.RequestContext.HttpContext.Session;
        var userName = filterContext.RequestContext.HttpContext.User.Identity.Name;
        var userStore = new ApplicationUserStore(new IdentityDb());
        var userManager = new ApplicationUserManager(userStore);
        var user = userManager.FindByNameAsync(userName).Result;
        if (userName == null || user == null || session == null || session["ActiveSessionId"] == null || 
            session["ActiveSessionId"].ToString() != user.ActiveSessionId.ToString())
        {
            session.RemoveAll();
            session.Clear();
            session.Abandon();
            filterContext.Result = new RedirectToRouteResult(
                new RouteValueDictionary(new
                {
                    action = "Login",
                    controller = "Account"
                }
            ));         
        }
        base.OnActionExecuting(filterContext);
    }
}
[Authorize]
public class AccountController : Controller
{
    [AllowAnonymous]
    public ActionResult Login(string returnUrl)
    {
        SignOutAndKillSession();
        ViewBag.ReturnUrl = returnUrl;
        return View();
    }
    private void SignOutAndKillSession()
    {
        AuthenticationManager.SignOut();
        Session.RemoveAll();
        Session.Clear();
        Session.Abandon();
    }
}

当我在重定向到登录操作后再次尝试登录时，我会得到以下异常：

The provided anti-forgery token was meant for a different claims-based user than the current user

我在Login操作中设置了一个断点，可以看到User.Identity.Name仍然设置为要注销的用户，在调用SignOutAndKillSession（）之后的and之前。我相信这就是导致在页面渲染时生成不正确的AntiForgeryToken的原因。

有人能帮我了解如何在注销用户时清除用户主体吗？

感谢

在MVC 5中使用自定义ActionFilterAttribute注销用户

对于遇到此问题的任何人，我通过使MVC 5在CheckSessionAttribute中创建的cookie过期来解决此问题。我还将属性从ActionFilterAttribute更改为IAuthorizationFilter属性

public class CheckSessionAttribute : FilterAttribute, IAuthorizationFilter
{
    public void OnAuthorization(AuthorizationContext filterContext)
    {
        if (filterContext.ActionDescriptor.GetCustomAttributes(typeof(AllowAnonymousAttribute), false).Any())
        {
            // If the action allows Anonymous users, no need to check the session
            return;
        }
        var session = filterContext.RequestContext.HttpContext.Session;
        var userName = filterContext.RequestContext.HttpContext.User.Identity.Name;
        var userStore = new ApplicationUserStore(new IdentityDb());
        var userManager = new ApplicationUserManager(userStore);
        var user = userManager.FindByNameAsync(userName).Result;
        if (userName == null || user == null || session == null || session["ActiveSessionId"] == null ||
            session["ActiveSessionId"].ToString() != user.ActiveSessionId.ToString())
        {
            session.RemoveAll();
            session.Clear();
            session.Abandon();
            ExpireCookie("ASP.NET_SessionId", filterContext);
            ExpireCookie("__RequestVerificationToken", filterContext);
            ExpireCookie(".AspNet.ApplicationCookie", filterContext);
            filterContext.Result = new RedirectToRouteResult(
                new RouteValueDictionary(new
                {
                    action = "Login",
                    controller = "Account"
                }
            ));
        }
        return;
    }
    private void ExpireCookie(string name, AuthorizationContext filterContext)
    {
        if (filterContext.RequestContext.HttpContext.Request.Cookies[name] != null)
        {
            filterContext.RequestContext.HttpContext.Response.Cookies[name].Value = string.Empty;
            filterContext.RequestContext.HttpContext.Response.Cookies[name].Expires = DateTime.Now.AddMonths(-20);
        }
    }
}
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