ASP.NET Core 8 Blazor：OpenIdConnect 将用户范围保存到应用程序数据库

Question

为了测试和娱乐，我创建了一个默认的 ASP.NET Core 8 Blazor Web 应用程序，其中包含用于身份验证的个人帐户，并向其中添加了我的 keycloak。在 keycloak 中，用户可以拥有自定义属性，例如他们工作的地方 (cegnev)。如何使我的 ASP.NET Core 应用程序将该数据保存到其数据库中？

这是我修改过的

ApplicationUser

:

using Microsoft.AspNetCore.Identity;

namespace TesztBlazorAuth.Data
{
    // Add profile data for application users by adding properties to the ApplicationUser class
    public class ApplicationUser : IdentityUser
    {
        public string cegnev { get; set; }
    }
}

Program.cs

：

using Microsoft.AspNetCore.Components.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.EntityFrameworkCore;
using TesztBlazorAuth.Components;
using TesztBlazorAuth.Components.Account;
using TesztBlazorAuth.Data;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Authentication.OpenIdConnect;
using Microsoft.IdentityModel.Tokens;
using Microsoft.AspNetCore.Authentication.Google;
using Microsoft.Extensions.Options;
using System.IdentityModel.Tokens.Jwt;
using System.Security.Claims;

var builder = WebApplication.CreateBuilder(args);
var configuration = builder.Configuration;

// Add services to the container.
builder.Services.AddRazorComponents()
       .AddInteractiveServerComponents();

builder.Services.AddCascadingAuthenticationState();
builder.Services.AddScoped<IdentityUserAccessor>();
builder.Services.AddScoped<IdentityRedirectManager>();
builder.Services.AddScoped<AuthenticationStateProvider, IdentityRevalidatingAuthenticationStateProvider>();

builder.Services.AddAuthentication(options =>
{
    options.DefaultScheme = IdentityConstants.ApplicationScheme;
    options.DefaultSignInScheme = IdentityConstants.ExternalScheme;
})
.AddIdentityCookies();

var connectionString = builder.Configuration.GetConnectionString("DefaultConnection") ?? throw new InvalidOperationException("Connection string 'DefaultConnection' not found.");
builder.Services.AddDbContext<ApplicationDbContext>(options =>
options.UseSqlServer(connectionString));
builder.Services.AddDatabaseDeveloperPageExceptionFilter();

builder.Services.AddIdentityCore<ApplicationUser>(options => options.SignIn.RequireConfirmedAccount = true)
.AddEntityFrameworkStores<ApplicationDbContext>()
.AddSignInManager()
.AddDefaultTokenProviders();

builder.Services.AddSingleton<IEmailSender<ApplicationUser>, IdentityNoOpEmailSender>();

builder.Services.AddAuthentication()
.AddGoogle(options =>
{
    options.ClientId = configuration["GoogleAuth:id"];
    options.ClientSecret = configuration["GoogleAuth:secret"];
})
.AddOpenIdConnect("Keycloak", "CorpAuth", options =>
{
    options.Authority = $"{configuration["Keycloak:auth-server-url"]}realms/{configuration["Keycloak:realm"]}";
    options.ClientId = configuration["Keycloak:resource"];
    options.ClientSecret = configuration["Keycloak:credentials:secret"];
    options.ResponseType = "code";
    options.SaveTokens = true;

    options.TokenValidationParameters = new TokenValidationParameters
       {
           ValidateIssuer = true
       };
    
    options.Scope.Add("openid");
    options.Scope.Add("profile");
    options.Scope.Add("email");
    options.Scope.Add("phone");
    options.Scope.Add("cegnev");
});

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseMigrationsEndPoint();
}
else
{
    app.UseExceptionHandler("/Error", createScopeForErrors: true);
    // 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.UseAuthentication();
app.UseAuthorization();

app.MapRazorComponents<App>()
       .AddInteractiveServerRenderMode();

// Add additional endpoints required by the Identity /Account Razor components.
app.MapAdditionalIdentityEndpoints();
app.UseAntiforgery();
app.Run();

用户应该在数据库中拥有来自 keyclaok 的

cegnev

。

Answer 1

AddOpenIdConnect 中有事件处理程序，您可以插入它们，以捕获来自 KeyCloak 的所有声明，然后将它们保存到本地数据库。

请参阅此处记录的 OpenIdConnectEvents 类：

https://learn.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.authentication.openidconnect.openidconnectevents?view=aspnetcore-8.0

这是一个例子：

  .AddOpenIdConnect(o =>
    {
        //Additional config snipped
        o.Events = new OpenIdConnectEvents
        {
            OnTokenValidated = async ctx =>
            {
                ...
            }
        };
    });