我想在 ASP.Net Core 中实现基于 JWT 的安全性。现在，我想让它做的就是读取 Authorization header 中的不记名 token ，并根据我的标准验证它们。我不需要(也不想)包含 ASP.Net Identity。事实上，我尽量避免使用 MVC 添加的东西，除非我真的需要它们。

我创建了一个最小的项目，它演示了这个问题。要查看原始代码，只需查看编辑历史即可。我原以为此示例会拒绝对 /api/icons 的所有请求，除非它们提供具有相应承载 token 的 Authorization HTTP header 。该示例实际上允许所有请求。

启动.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Configuration;
using Microsoft.AspNetCore.Routing;
using Microsoft.IdentityModel.Tokens;
using System.Text;
using System;
using Newtonsoft.Json.Serialization;

namespace JWTSecurity
{
    public class Startup
    {
        public IConfigurationRoot Configuration { get; set; }

        public Startup(IHostingEnvironment env)
        {
            IConfigurationBuilder builder = new ConfigurationBuilder().SetBasePath(env.ContentRootPath);
            Configuration = builder.Build();
        }

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddOptions();
            services.AddAuthentication();
            services.AddMvcCore().AddJsonFormatters(options => options.ContractResolver = new CamelCasePropertyNamesContractResolver());
        }

        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole();
            app.UseJwtBearerAuthentication(new JwtBearerOptions
            {
                AutomaticAuthenticate = true,
                AutomaticChallenge = true,
                TokenValidationParameters = new TokenValidationParameters
                {
                    ValidateIssuerSigningKey = true,
                    IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes("supersecretkey")),
                    ValidateIssuer = false,
                    ValidateAudience = false,
                    ValidateLifetime = true,
                    ClockSkew = TimeSpan.Zero
                }
            });
            app.UseMvc(routes => routes.MapRoute("default", "{controller=Home}/{action=Index}/{id?}"));
        }
    }
}

Controller /IconsController.cs

using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

namespace JWTSecurity.Controllers
{
    [Route("api/[controller]")]
    public class IconsController : Controller
    {
        [Authorize]
        public IActionResult Get()
        {
            return Ok("Some content");
        }
    }
}

最佳答案

找到了!

主要问题出在这一行:

services.AddMvcCore().AddJsonFormatters(options => options.ContractResolver = new CamelCasePropertyNamesContractResolver());

我注意到通过从 AddMvcCore() 切换到 AddMvc()，授权突然开始工作了!挖通后the ASP.NET source code ，为了查看 AddMvc() 做了什么，我意识到我需要第二次调用 IMvcBuilder.AddAuthorization()。

services.AddMvcCore()
    .AddAuthorization() // Note - this is on the IMvcBuilder, not the service collection
    .AddJsonFormatters(options => options.ContractResolver = new CamelCasePropertyNamesContractResolver());

关于c# - ASP.NET Core 授权属性不适用于 JWT，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40646312/