WebApi 身份验证不适用于 MVC

Question

我有带有自定义身份验证服务器的 ASP.NET MVC 应用程序。当用户想登录时，app弹窗，完成后，token返回，app再通过WebApi登录用户，

var cl = from d in (this.User.Identity as ClaimsIdentity).Claims
         select new Claim(d.Type, d.Value);
var identity = new ClaimsIdentity(cl, "ApplicationCookie");
AuthenticationManager.SignIn(identity);
var name = cl.FirstOrDefault(x => x.Type.ToLower() == "login").Value;
Thread.CurrentPrincipal = new TaiAuthPrincipal(identity);
System.Web.Security.FormsAuthentication.SetAuthCookie(name, true);

并且在每个请求 - WebApi 知道谁是用户，意味着 User.Identity 被定义； 但在 MVC 视图中，它始终为 null，并且这些都不执行

<div class="headerPane">
    @{
        if (User.Identity.IsAuthenticated)
        {
            @Html.Partial("HeaderPartialView")
        }
        if (HttpContext.Current.User.Identity.IsAuthenticated)
        {
            @Html.Partial("HeaderPartialView")
        }
        if (System.Threading.Thread.CurrentPrincipal.Identity.IsAuthenticated)
        {
            @Html.Partial("HeaderPartialView")
        }
    }
</div>

如何验证用户从 web api 到 mvc？ 前端基于 angularjs 的应用程序，因此所有授权工作都通过 webapi 请求在前端完成。所以 mvc 根本什么都不知道。

为了完整起见，这里是TaiAuthPrincipal，确实没什么特别的

public class TaiAuthPrincipal : IPrincipal
    {
        private IIdentity identity;
        public IIdentity Identity
        {
            get { return identity; }
        }

        public bool IsInRole(string role)
        {
            var _role = (this.Identity as ClaimsIdentity).Claims.FirstOrDefault(x => x.Type.ToLower().Contains("GroupName".ToLower()));
            return _role == null ? false : true;
        }
        public TaiAuthPrincipal(IIdentity _identity)
        {
            this.identity = _identity;
        }
        public TaiAuthPrincipal(ClaimsIdentity _identity)
        {
            this.identity = _identity as IIdentity;
        }
    }

Global.asax

void MvcApplication_PostAuthenticateRequest(object sender, EventArgs e)
        {
            if (HttpContext.Current.Request.Url.AbsolutePath.StartsWith("/api/"))
            {
                System.Web.HttpContext.Current.SetSessionStateBehavior(System.Web.SessionState.SessionStateBehavior.Required);
            }
        }

Startup.cs

public partial class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            app.MapSignalR();
            app.UseOAuthBearerAuthentication(new Microsoft.Owin.Security.OAuth.OAuthBearerAuthenticationOptions());
        }
    }

Answer 1

如果您在 MVC 应用程序的同一个项目中制作 Web Api，那么您验证 Web 请求的方式是完全错误的。发生的情况是，当您通过调用操作请求视图时，您的 mvc 项目需要经过身份验证的请求，因此您需要做的是将您的 accesstoken 保存在客户端的 cookie 中，并将其与每个请求一起发送到服务器，并从该令牌中识别用户和设置 IPrincipal。仔细阅读这个答案，它会帮助你

ASP.NET MVC - Set custom IIdentity or IPrincipal

您的代码将如下所示

protected void Application_PostAuthenticateRequest(Object sender, EventArgs e)
{
    HttpCookie authCookie = Request.Cookies[FormsAuthentication.FormsCookieName];

    if (authCookie != null)
    {
        FormsAuthenticationTicket authTicket = FormsAuthentication.Decrypt(authCookie.Value);

        JavaScriptSerializer serializer = new JavaScriptSerializer();

        CustomPrincipalSerializeModel serializeModel = serializer.Deserialize<CustomPrincipalSerializeModel>(authTicket.UserData);

        CustomPrincipal newUser = new CustomPrincipal(authTicket.Name);
        newUser.Id = serializeModel.Id;
        newUser.FirstName = serializeModel.FirstName;
        newUser.LastName = serializeModel.LastName;

        HttpContext.Current.User = newUser;
    }
}