SignalR Hub在Blazor服务器应用程序与Windows认证在Windows 2019 IIS 10不工作.&

Question

我做了什么:

• blazor服务器应用程序模板与VS 2022 + .Net6.0与Windows认证
• 添加简单的Hub
• 在Windows Server 2019 + IIS 10上托管应用程序

(btw在Windows2012R2 + IIS8.5上托管时所有都在工作)

正在工作:

• 所有在我的本地IIS Express…当然:)
• blazor服务器应用程序页面
• 只要客户端是TestConsole应用程序或另一台服务器上的另一个Web应用程序，Hub就可以工作

什么是不是工作:

• HubConnectionBuilder，只要我尝试从blazor应用程序本身连接到它

我也打开了一个(GitHub上的问题)，但我希望我在这里得到更多的提示。

我最近尝试的是创建一个新的blazor服务器应用程序没有Windows身份验证只是为了确保我的"客户端代码";HubUrl for HubConnectionBuilder是对的。是的，没有Windows身份验证，一切都像预期的那样工作…

下面是我的代码:

TestHub.cs

using Microsoft.AspNetCore.SignalR;
namespace BlazorServerTestHub.Hubs
{
public class TestHub :Hub
{
public async Task SendSomeMessage(int currentCount, string someMessage)
{
await Clients.Others.SendAsync("OnSendMyMessage", currentCount, someMessage);
}
}
}

Programm.cs

using BlazorServerTestHub.Data;
using BlazorServerTestHub.Hubs;
using Microsoft.AspNetCore.Authentication.Negotiate;
using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Web;
var builder = WebApplication.CreateBuilder(args);
// Add services to the container.
builder.Services.AddAuthentication(NegotiateDefaults.AuthenticationScheme)
.AddNegotiate();
builder.Services.AddAuthorization(options =>
{
// By default, all incoming requests will be authorized according to the default policy.
options.FallbackPolicy = options.DefaultPolicy;
});
builder.Services.AddRazorPages();
builder.Services.AddServerSideBlazor(options =>
{
options.DetailedErrors = true;
options.DisconnectedCircuitMaxRetained = 100;
options.DisconnectedCircuitRetentionPeriod = TimeSpan.FromMinutes(3);
options.JSInteropDefaultCallTimeout = TimeSpan.FromMinutes(1);
options.MaxBufferedUnacknowledgedRenderBatches = 10;
}).AddHubOptions(options =>
{
//https://learn.microsoft.com/en-us/aspnet/core/signalr/configuration?view=aspnetcore-6.0&tabs=dotnet#configure-server-options-1
options.EnableDetailedErrors = true;
options.ClientTimeoutInterval = TimeSpan.FromSeconds(60);
options.HandshakeTimeout = TimeSpan.FromSeconds(15);
options.KeepAliveInterval = TimeSpan.FromSeconds(15);
options.MaximumParallelInvocationsPerClient = 1;
options.MaximumReceiveMessageSize = 32 * 1024;
options.StreamBufferCapacity = 10;
});
builder.Services.AddSingleton<WeatherForecastService>();
var app = builder.Build();
// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
app.UseExceptionHandler("/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.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseWebSockets();
app.UseAuthentication();
app.UseAuthorization();

app.MapBlazorHub();
app.MapHub<TestHub>("/mytesthub");
app.MapFallbackToPage("/_Host");
app.Run();

Counter.razor

@page "/counter"
@using Microsoft.AspNetCore.SignalR.Client
@inject NavigationManager navigationManager;
@implements IAsyncDisposable;
<PageTitle>Counter</PageTitle>
<h1>Counter</h1>
<p role="status">Current count: @currentCount</p>
<button class="btn btn-primary" @onclick="IncrementCount">Click me</button>
<p>@MyMessage</p>

@code {
private int currentCount = 0;
private HubConnection hubConnection = null!;
public string MyMessage { get; set; } = null!;
private async void IncrementCount()
{
currentCount++;
await hubConnection.SendAsync("SendSomeMessage", currentCount, DateTime.Now.ToLongTimeString());
}
protected override async Task OnInitializedAsync()
{
var hubUrl = navigationManager.BaseUri + "mytesthub";

hubConnection = new HubConnectionBuilder()
.WithUrl(hubUrl, options =>
{
options.UseDefaultCredentials = true;
options.SkipNegotiation = true;
options.Transports = Microsoft.AspNetCore.Http.Connections.HttpTransportType.WebSockets;
})
.WithAutomaticReconnect()
.Build();
hubConnection.On<int, string>("OnSendMyMessage", async (counter, msg) =>
{
MyMessage = $"Counter: {counter}! {msg}";
await InvokeAsync(StateHasChanged);
});
await hubConnection.StartAsync();

}
public async ValueTask DisposeAsync()
{
if (hubConnection is not null)
{
await hubConnection.DisposeAsync().ConfigureAwait(false);
}
hubConnection = null!;
}
}

这是我得到的错误信息:

当状态码为"101"时，服务器返回状态码为"401">

Answer 1

我找到了一个解决方案，但不是很满意。也许有人有更好的办法。

如果我在Windows 2019服务器上设置了以下注册表项:

ComputerHKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlLsaDisableLoopbackCheck = 1

那么我的应用程序就像预期的那样工作了。