Question

我有一个使用asp.net核心2.1 API并与Angular 4应用程序连接并通过JWT令牌进行身份验证。我那里也有2个SignalR集线器。

身份验证很好用，我确信它可以正常工作，因为登录后我可以访问设置了[Authorize]的方法和类。

问题在于，每次请求时，注入的_accessor.HttpContext.Session.Id都会发生变化。所以真正的问题是我不能使用会话变量。

我茫然不知所措，在我看来我在这里错过了一些东西。有人可以帮我一些想法吗？非常感谢您的帮助。

到目前为止，这是我的startup.cs：

public class Startup
{
    public Startup(IConfiguration configuration, IHostingEnvironment env)
    {
        Configuration = configuration;
        if (env.IsDevelopment())
        {
            Log.Logger = new LoggerConfiguration()
                .MinimumLevel.Debug()
                .WriteTo.RollingFile(Path.Combine(env.ContentRootPath+"/logs/", "log-{Date}.txt"))
                //, outputTemplate: "{MachineName} {EnvironmentUserName}: {Message:lj}{NewLine}{Exception}"
                .WriteTo.Seq("http://192.168.1.164:5341")
                .Enrich.WithMachineName()
                .Enrich.WithEnvironmentUserName()
                .CreateLogger();
        }
        else
        {
            Log.Logger = new LoggerConfiguration()
                .MinimumLevel.Information()
                .WriteTo.RollingFile(Path.Combine(env.ContentRootPath + "/logs/", "log-{Date}.txt"))
                .Enrich.WithMachineName()
                .Enrich.WithEnvironmentUserName()
                .CreateLogger();
        }
    }

public IConfiguration Configuration { get; }

public void ConfigureServices(IServiceCollection services)
{
    var key = Encoding.ASCII.GetBytes(Configuration.GetSection("AppSettings:Token").Value);
    services.AddDbContext<PaymentServicesContext>(options => options.UseSqlServer(Configuration.GetConnectionString("PaymentDatabase")));

    services.AddSession(options =>
    {
        options.IdleTimeout = TimeSpan.FromMinutes(10);
        options.Cookie.HttpOnly = true;
    });

    services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1).AddSessionStateTempDataProvider();

    services.AddAuthentication(options =>
    {
        options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
        options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
    })
    .AddJwtBearer(options =>
    {
        options.TokenValidationParameters =
        new TokenValidationParameters
        {
            LifetimeValidator = (before, expires, token, param) =>
            {
                return expires > DateTime.UtcNow;
            },
            ValidateAudience = false,
            ValidateIssuerSigningKey = true,
            ValidateIssuer = false,
            ValidateActor = false,
            ValidateLifetime = true,
            IssuerSigningKey = new SymmetricSecurityKey(key)
        };
        options.Events = new JwtBearerEvents
        {
            OnMessageReceived = context =>
            {
                var accessToken = context.Request.Query["access_token"];
                var path = context.HttpContext.Request.Path;
                if (!string.IsNullOrEmpty(accessToken))
                {
                    context.Token = accessToken;
                }
                return Task.CompletedTask;
            }
        };
    });
    services.AddAutoMapper();
    services.AddCors();
    services.AddSignalR(options => options.EnableDetailedErrors = true);

    ///services
    services.TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>();
    services.AddTransient<IBrainzService, BrainzService>();
    services.AddTransient<ISecurityService, SecurityService>();

}

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
    loggerFactory.AddConsole(Configuration.GetSection("Logging"));
    loggerFactory.AddDebug();
    loggerFactory.AddSerilog();

    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
    }
    else
    {
        app.UseExceptionHandler(builder =>
        {
            builder.Run(async context =>
            {
                context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;

                var error = context.Features.Get<IExceptionHandlerFeature>();
                if (error != null)
                {

                    await context.Response.WriteAsync(error.Error.Message);
                }
            });
        });
    }


    app.UseCors(builder => builder.AllowAnyOrigin().AllowAnyHeader().AllowAnyMethod().AllowCredentials())
        .UseStaticFiles()
        .UseWebSockets();

    app.UseAuthentication();
    if (!env.IsDevelopment())
    {
        app.UseHttpsRedirection();
    }
    app.UseWebSockets();

    app.UseSignalR(
        routes =>
        {
            routes.MapHub<MessagingHub>("/messagingHub");
            routes.MapHub<UpdatesHub>("/updatesHub");
        });

    app.UseSession();
    app.UseMvc();
}

}

Answer 1

配置有效。问题是，Angular的HttpClient默认不存储/获取/发送cookie，因为我发现很难。我要做的就是在登录请求中添加{withCredentials: true }选项，并将会话cookie弹出到浏览器中！要恢复会话，您必须将此选项添加到所有请求中，API才能知道会话！

Answer 2

一种解决方案是创建一个Interceptor以在所有请求离开客户端应用程序之前对其进行拦截。 tutorial对此进行了很好的解释。您还可以通过将withCredentials设置为true在每个请求级别执行此操作。

const requestOptions = {
 headers: new HttpHeaders({
  'Authorization': "my-request-token"
 }),
 withCredentials: true
};

ASP Net Core 2.1 api jwt令牌Session.id在每个请求上更改

2 个答案: