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[英]User.Identity.Name returns null in ASP.NET Core MVC application
[英]User.Identity.Name always null and claims count 0 after PasswordSignInAsync MVC .Net Core 3.0
我有一個無法使用 ASP.NET MVC Core 3.0 解決的問題。 登錄后,結果成功並成功返回到我想要登錄的頁面,當我檢查cookies或session時,我可以看到API成功添加了它們。 但是當我嘗試獲取 User.Identity.Name 時,它始終為 null,並且 isAuthenticated 始終等於 false。 這就像 app.UseAuthentication() 不讀取 cookie 或會話。
我的啟動.cs
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContextPool<AnisubsDbContext>(options => options.UseSqlServer(Configuration.GetConnectionString("AnisubsDBConnection")));
services.AddIdentity<IdentityUser, IdentityRole>()
.AddEntityFrameworkStores<AnisubsDbContext>()
.AddDefaultTokenProviders();
services.AddMvc();
services.AddControllersWithViews();
services.AddAuthentication(options =>
{
options.DefaultChallengeScheme = CookieAuthenticationDefaults.AuthenticationScheme;
options.DefaultSignInScheme = CookieAuthenticationDefaults.AuthenticationScheme;
options.DefaultAuthenticateScheme = CookieAuthenticationDefaults.AuthenticationScheme;
})
.AddFacebook(facebookOptions =>
{
facebookOptions.AppId = "353222242210621";
facebookOptions.AppSecret = "XXXX";
facebookOptions.CallbackPath = new Microsoft.AspNetCore.Http.PathString("/Login/Callback");
})
.AddGoogle(googleOptions =>
{
googleOptions.ClientId = "1093176997632-ug4j2h7m9f1nl9rg8nucecpf9np0isro.apps.googleusercontent.com";
googleOptions.ClientSecret = "XXXX";
googleOptions.CallbackPath = new Microsoft.AspNetCore.Http.PathString("/Login/Callback");
})
.AddTwitter(twitterOptions =>
{
twitterOptions.ConsumerKey = "lZ2ugpLuKpDOlmdSuyw1hVJLU";
twitterOptions.ConsumerSecret = "XXXX";
twitterOptions.CallbackPath = new Microsoft.AspNetCore.Http.PathString("/Login/Callback");
})
.AddMicrosoftAccount(microsoftOptions =>
{
microsoftOptions.ClientId = "22f501ab-70c9-4054-8f33-2b35af3a64ba";
microsoftOptions.ClientSecret = "XXXX";
microsoftOptions.CallbackPath = new Microsoft.AspNetCore.Http.PathString("/Login/Callback");
})
.AddCookie();
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseExceptionHandler("/Home/Error");
// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
app.UseHsts();
}
app.UseStaticFiles();
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.UseHttpsRedirection();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllerRoute(
name: "default",
pattern: "{controller=Home}/{action=Index}/{id?}");
});
}
}
登錄控制器.cs
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Login(LoginViewModel loginViewModel)
{
if (ModelState.IsValid)
{
var user = await userManager.FindByEmailAsync(loginViewModel.Email);
if (user != null)
{
var result = await signInManager.PasswordSignInAsync(user.UserName, loginViewModel.Password, loginViewModel.RememberMe, false);
if (result.Succeeded)
{
return RedirectToAction("Index", "Home");
}
}
ModelState.AddModelError(string.Empty, "Invalid Login Attempt");
}
return View(loginViewModel);
}
Razor 頁面共享 _navbarlayout.cshtml(_layout.cshtml 內的部分視圖)
@using Microsoft.AspNetCore.Identity
@inject SignInManager<IdentityUser> signInManager;
<nav class="navbar fixed-top">
<a class="navbar-logo" href="Dashboard.Default.html">
<span class="logo d-none d-xs-block"></span>
<span class="logo-mobile d-block d-xs-none"></span>
</a>
<div class="navbar-right">
<div class="header-icons d-inline-block align-middle">
<div class="user d-inline-block">
<button class="btn btn-empty p-0" type="button" data-toggle="dropdown" aria-haspopup="true"
aria-expanded="false">
@if (signInManager.IsSignedIn(User))
{
<span class="name">@User.Identity.Name</span>
}
else
{
<span class="name">Not Registered</span>
}
<span>
<img alt="Profile Picture" src="img/profile-pic-l.jpg" />
</span>
</button>
<div class="dropdown-menu dropdown-menu-right mt-3">
@if (signInManager.IsSignedIn(User))
{
<a class="dropdown-item" href="#">Account</a>
<a class="dropdown-item" href="#">Features</a>
<a class="dropdown-item" href="#">History</a>
<a class="dropdown-item" href="#">Support</a>
<a class="dropdown-item" asp-action="logout" asp-controller="account">Sign out</a>
}
else
{
<a class="dropdown-item" asp-action="login" asp-controller="account">Login</a>
<a class="dropdown-item" asp-action="register" asp-controller="account">Register</a>
}
</div>
</div>
</div>
</nav>
從上面的剃刀代碼中,signInManager.IsSignedIn(User) 始終為 false,User.identity 聲稱始終計數為零。
更改了如下啟動中間件的順序,問題還是一樣
app.UseStaticFiles();
app.UseHttpsRedirection();
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllerRoute(
name: "default",
pattern: "{controller=Home}/{action=Index}/{id?}");
});
ASP.NET Core Identity 創建一個 cookie(在屏幕截圖中顯示為.AspNetCore.Identity.Application
),它在成功調用PasswordSignInAsync
后設置。 Startup.ConfigureServices
對AddIdentity
的調用設置了這一點:它注冊一個名為Identity.Application
的身份驗證方案,並將其設置為應用程序的默認身份驗證方案。
現在,考慮到這一點,從問題中獲取以下代碼:
services.AddAuthentication(options => { options.DefaultChallengeScheme = CookieAuthenticationDefaults.AuthenticationScheme; options.DefaultSignInScheme = CookieAuthenticationDefaults.AuthenticationScheme; options.DefaultAuthenticateScheme = CookieAuthenticationDefaults.AuthenticationScheme; })
如上所述,對AddAuthentication
調用將默認身份驗證方案覆蓋為CookieAuthenticationDefaults.AuthenticationScheme
。 這最終會導致PasswordSignInAsync
使用Identity.Application
方案正確登錄用戶,但應用程序在嘗試加載當前用戶時使用的是Cookies
方案。 自然,這意味着用戶永遠不會被加載。
就解決方案而言,只需從AddAuthentication
刪除回調:
services.AddAuthentication()
.AddFacebook(facebookOptions =>
{
// ...
})
.AddGoogle(googleOptions =>
{
// ...
})
.AddTwitter(twitterOptions =>
{
// ...
})
.AddMicrosoftAccount(microsoftOptions =>
{
// ...
});
我還刪除了對AddCookie
的調用,這是多余的。 這會添加Cookies
身份驗證方案,但您的應用程序正在使用Identity.Application
,如前所述。
嘗試更改“startup.cs”中中間件的順序。 所以,你應該用app.UseHttpsRedirection()
之前app.UseAuthentication()
是這樣的:
app.UseHttpsRedirection();
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
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