【发布时间】:2019-03-26 14:24:19
【问题描述】:
我正在尝试在 blazor 服务器端使用 kesterel 设置 windows Auth。我的程序设置如下: 我正在使用 Blazor 服务器端的 0.6.0 版和 VS 2017 的最新版本。 使用开箱即用的 blazor 模板。您可以看到我在“Program.cs”的 BuildWebHost 中启用了“windows Auth”。如果我注释掉 options.Authentication.AllowAnonymous 行,当然一切正常。
Blazor.Web.server
程序.cs
public static void Main(string[] args)
{
BuildWebHost(args).Run();
}
public static IWebHost BuildWebHost(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.UseHttpSys(
options =>
{
options.Authentication.Schemes =
AuthenticationSchemes.Negotiate | AuthenticationSchemes.NTLM;
options.Authentication.AllowAnonymous = false;
})
.UseConfiguration(new ConfigurationBuilder()
.AddCommandLine(args)
.Build())
.UseStartup<Startup>()
.Build();
}
启动.cs
public class Startup
{
public void ConfigureServices(IServiceCollection services)
{
// Since Blazor is running on the server, we can use an application
service
// to read the forecast data.
services.AddSingleton();
}
public void Configure(IBlazorApplicationBuilder app)
{
app.AddComponent("app");
}
}
程序.cs
public class Program
{
public static void Main(string[] args)
{
CreateHostBuilder(args).Build().Run();
}
public static IWebAssemblyHostBuilder CreateHostBuilder(string[] args) =>
BlazorWebAssemblyHost.CreateDefaultBuilder()
.UseBlazorStartup<Startup>();
}
public class HttpContextAccessor
{
private readonly IHttpContextAccessor _httpContextAccessor;
public HttpContextAccessor(IHttpContextAccessor httpContextAccessor)
{
_httpContextAccessor = httpContextAccessor;
}
public HttpContext Context => _httpContextAccessor.HttpContext;
}
Auth.cshtml
using System.Net.Http
@Inject Blazor.Web.App.HttpContextAccessor HttpContext
@page "/two-way-data-binding"
Logged in User: @HttpContext.Context.User.Identity.Name
导航到 Auth.cshtml 时出现以下错误
System.ObjectDisposedException
HResult=0x80131622
Message=Safe handle has been closed
Source=System.Private.CoreLib
StackTrace:
at System.Runtime.InteropServices.SafeHandle.DangerousAddRef(Boolean& success)
at System.StubHelpers.StubHelpers.SafeHandleAddRef(SafeHandle pHandle, Boolean& success)
at Interop.Advapi32.GetTokenInformation(SafeAccessTokenHandle TokenHandle, UInt32 TokenInformationClass, SafeLocalAllocHandle TokenInformation, UInt32 TokenInformationLength, UInt32& ReturnLength)
at System.Security.Principal.WindowsIdentity.GetTokenInformation(SafeAccessTokenHandle tokenHandle, TokenInformationClass tokenInformationClass, Boolean nullOnInvalidParam)
at System.Security.Principal.WindowsIdentity.get_User()
at System.Security.Principal.WindowsIdentity.b__46_0()
at System.Security.Principal.WindowsIdentity.<>c__DisplayClass62_0.b__0(Object )
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Security.Principal.WindowsIdentity.RunImpersonatedInternal(SafeAccessTokenHandle token, Action action)
at System.Security.Principal.WindowsIdentity.RunImpersonated(SafeAccessTokenHandle safeAccessTokenHandle, Action action)
at System.Security.Principal.WindowsIdentity.GetName()
at System.Security.Principal.WindowsIdentity.get_Name()
at Cloud.WebUI.App.Pages.TwoWayDataBinding.BuildRenderTree(RenderTreeBuilder builder)
at Microsoft.AspNetCore.Blazor.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment)
at Microsoft.AspNetCore.Blazor.Rendering.Renderer.RenderInExistingBatch(RenderQueueEntry renderQueueEntry)
at Microsoft.AspNetCore.Blazor.Rendering.Renderer.ProcessRenderQueue()
at Microsoft.AspNetCore.Blazor.Rendering.Renderer.AddToRenderQueue(Int32 componentId, RenderFragment renderFragment)
这也被创建为“问题”@Blazor Issue # 1596
【问题讨论】:
-
伙计,您的代码格式错误,缺少许多部分。我猜您不仅是 Blazor 的新手,而且是 ASP.NET Core 的新手,对吧?如果你是 ASP.NET 开发人员,学习 Blazor 的第一步是学习 Core 风格。这是另一回事,相信我。当你对这个框架有一个合理的命令时,你的代码不会包含这样的东西:services.AddSingleton(); Blazor 将处于其最后的发展塑造阶段,您无需学习过时的东西。希望这会有所帮助。
-
抱歉,这是默认的 blazor 模板。我从 DI 中删除了“天气预报服务”,因为它没有增加价值。除了“HttpContaxtAccessor”部分之外,大部分代码都是样板代码。看起来 blazor 没有通过 signalR 将用户上下文传递给服务器,或者它可能被过早地处理掉了。
标签: windows-authentication kestrel-http-server blazor