您好,登錄后才能下訂單哦!
在C#中,我們可以使用ASP.NET Core來創(chuàng)建一個(gè)中間件,并集成身份驗(yàn)證框架。ASP.NET Core是一個(gè)跨平臺的開源框架,用于構(gòu)建現(xiàn)代云應(yīng)用程序。它提供了許多內(nèi)置的身份驗(yàn)證和授權(quán)功能,如JWT、OAuth 2.0等。
以下是一個(gè)簡單的示例,展示了如何在ASP.NET Core中創(chuàng)建一個(gè)中間件,并集成IdentityServer4作為身份驗(yàn)證框架:
首先,確保已安裝以下NuGet包:
在Startup.cs
文件中,配置IdentityServer4作為身份驗(yàn)證框架:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
namespace MiddlewareAuthentication
{
public class Startup
{
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddControllers();
services.AddAuthentication("Bearer")
.AddIdentityServerAuthentication("Bearer", options =>
{
options.Authority = "http://localhost:5000"; // IdentityServer4的地址
options.RequireHttpsMetadata = false;
options.ApiName = "api1"; // 在IdentityServer4中注冊的API名稱
});
}
// 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();
}
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
}
}
}
AuthenticationMiddleware.cs
:using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
namespace MiddlewareAuthentication
{
public class AuthenticationMiddleware
{
private readonly RequestDelegate _next;
public AuthenticationMiddleware(RequestDelegate next)
{
_next = next;
}
public async Task InvokeAsync(HttpContext context)
{
if (!context.User.Identity.IsAuthenticated)
{
context.Response.StatusCode = 401;
await context.Response.WriteAsync("Unauthorized");
return;
}
await _next(context);
}
}
}
Startup.cs
文件中,將中間件添加到請求管道中:public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
// ...
app.UseMiddleware<AuthenticationMiddleware>();
// ...
}
現(xiàn)在,當(dāng)客戶端請求API時(shí),中間件會(huì)檢查請求是否包含有效的訪問令牌。如果沒有,它將返回401 Unauthorized響應(yīng)。如果有效,請求將繼續(xù)傳遞給下一個(gè)中間件或控制器。
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點(diǎn)不代表本網(wǎng)站立場,如果涉及侵權(quán)請聯(lián)系站長郵箱:is@yisu.com進(jìn)行舉報(bào),并提供相關(guān)證據(jù),一經(jīng)查實(shí),將立刻刪除涉嫌侵權(quán)內(nèi)容。