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基于之前快速入门的项目(MvcCookieAuthSample):
mvcCookieAuthSample2下载地址:
把这个 MVC 注册登录的网站变成一个单点登录,现在它是自己登录自己使用,我们需要把它的登录信息返回给第三方
在 startup 中
using IdentityServer4;
using System.Collections;using System.Collections.Generic;using IdentityServer4.Models;using IdentityServer4.Test;namespace mvcCookieAuthSample{    public class Config    {        public static IEnumerable        GetClients()        {            return new List                     {                new Client()                {                    ClientId = "client",                    AllowedGrantTypes = GrantTypes.Implicit,// 隐式模式                    ClientSecrets =                     {                        new Secret("secret".Sha256())                    },                    AllowedScopes = {"api"},                }            };        }        public static IEnumerable            GetApiResource()        {            return new List                         {                new ApiResource("api", "My Api")            };        }        public static IEnumerable                GetIdentityResources()        {            return new List                  { new IdentityResources.OpenId(), new IdentityResources.Profile(), new IdentityResources.Email(), }; } public static List                    GetTestUsers() { return new List                      { new TestUser { SubjectId = "1", Username = "mingsonzheng", Password = "123456" } }; } }}                                                              // This method gets called by the runtime. Use this method to add services to the container.public void ConfigureServices(IServiceCollection services){    services.AddIdentityServer()            .AddDeveloperSigningCredential()            .AddInMemoryClients(Config.GetClients())            .AddInMemoryApiResources(Config.GetApiResource())            .AddInMemoryIdentityResources(Config.GetIdentityResources())            .AddTestUsers(Config.GetTestUsers());    //services.AddDbContext       (options =>    //{    //    options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"));    //});    //services.AddIdentity         ()    //    .AddEntityFrameworkStores           ()    //    .AddDefaultTokenProviders();    //services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)    //    .AddCookie(options => {    //        options.LoginPath = "/Account/Login";    //    });    //services.Configure             (options =>    //{    //    options.Password.RequireLowercase = true;    //    options.Password.RequireNonAlphanumeric = true;    //    options.Password.RequireUppercase = true;    //    options.Password.RequiredLength = 12;    //});    services.AddMvc();}                        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.public void Configure(IApplicationBuilder app, IHostingEnvironment env){    if (env.IsDevelopment())    {        app.UseDeveloperExceptionPage();    }    else    {        app.UseExceptionHandler("/Home/Error");    }    app.UseStaticFiles();        //app.UseAuthentication();    app.UseIdentityServer();    app.UseMvc(routes =>    {        routes.MapRoute(            name: "default",            template: "{controller=Home}/{action=Index}/{id?}");    });}  我们已经把 IdentityServer4 添加到 MVC 程序中,接着需要在 Controller 中实现这个逻辑
首先注释 AccountController 原先的登录逻辑
//private UserManager_userManager;//private SignInManager _signInManager; 
Logout 中使用 HttpContext.SignOutAsync 替换
public async TaskLogout(){ //await _signInManager.SignOutAsync(); await HttpContext.SignOutAsync(); return RedirectToAction("Index", "Home");} 
接着改造登录的逻辑,我们需要验证用户名和密码,前面我们在 Config 中添加了 TestUser,它被放在 TestUserStore 中,可以通过依赖注入引用进来,有了它之后就可以在登录的时候拿到用户名和密码
private readonly TestUserStore _users;public AccountController(TestUserStore users){    _users = users;}  因为 TestUser 本身不提供 Email 登录,所以我们需要修改 LoginViewModel 以及 Login.cshtml
LoginViewModel
[Required]//[DataType(DataType.EmailAddress)]//public string Email { get; set; }public string UserName { get; set; }  Login.cshtml
改造登录的逻辑
public async TaskLogin(LoginViewModel loginViewModel,string returnUrl){ if (ModelState.IsValid) { //ViewData["ReturnUrl"] = returnUrl; //var user = await _userManager.FindByEmailAsync(loginViewModel.Email); //if (user == null) //{ // ModelState.AddModelError(nameof(loginViewModel.Email), "Email not exists"); //} //else //{ // await _signInManager.SignInAsync(user, new AuthenticationProperties { IsPersistent = true }); // return RedirectToLoacl(returnUrl); //} ViewData["ReturnUrl"] = returnUrl; var user = _users.FindByUsername(loginViewModel.UserName); if (user == null) { ModelState.AddModelError(nameof(loginViewModel.UserName), "UserName not exists"); } else { if (_users.ValidateCredentials(loginViewModel.UserName, loginViewModel.Password)) { var props = new AuthenticationProperties { IsPersistent = true, ExpiresUtc = DateTimeOffset.UtcNow.Add(TimeSpan.FromMinutes(30)), }; await Microsoft.AspNetCore.Http.AuthenticationManagerExtensions.SignInAsync( HttpContext, user.SubjectId, user.Username, props ); return RedirectToLoacl(returnUrl); } ModelState.AddModelError(nameof(loginViewModel.Password), "Wrong Password"); } } return View();} 
这样,我们就实现了一个通过 IdentityServer4 下的方法来实现了一个登录逻辑,然后做了一个跳转,下一节再把客户端加进来
本作品采用进行许可。
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如有任何疑问,请与我联系 (MingsonZheng@outlook.com) 。