IdentityServer4 中自定义控制器和 CustomClientStore 的 CORS 问题

Question

我想将自定义端点添加到 IdentityServer4 中，但是当我从另一个站点调用 API 时，出现 CORS 错误。我使用 CustomClientStore 加载我的客户端，所以我需要添加 CustomCorsPolicyService

Access to XMLHttpRequest at 'http://localhost:8082/embedded/log' from origin 'http://localhost:8080' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

在 Startup 中，我添加了 CustomClientStore 和 CustomCorsPolicyService

public void ConfigureServices(IServiceCollection services)
{
    ...
    CustomClientStore.Init(_Configuration);

    var builder = services.AddIdentityServer()
        .AddInMemoryIdentityResources(Config.GetIdentityResources())
        .AddInMemoryApiScopes(Config.GetApiScopes())
        .AddRedirectUriValidator<MyUriValidator>();

    builder.Services.AddSingleton<IUserRepository, UserRepository>();
    builder.AddProfileService<CustomProfileService>();

    builder.AddClientStore<CustomClientStore>();
    //services.AddCors(setup => setup.AddDefaultPolicy(b => b.AllowAnyOrigin().AllowAnyHeader().AllowAnyMethod()));

    builder.AddCorsPolicyService<CustomCorsPolicyService>();
    ...
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    if (env.IsDevelopment())
        app.UseDeveloperExceptionPage();
    
    app.UseStaticFiles();
    
    // Add this before any other middleware that might write cookies
    app.UseCookiePolicy();
    
    app.UseIdentityServer();
    
    app.UseRouting();
    app.UseCors();
    app.UseMvcWithDefaultRoute();
    
    // This will write cookies, so make sure it's after the cookie policy
    app.UseAuthentication();
}

在我的控制器中


[ApiController]
public sealed class EmbeddedLogController : ControllerBase
{
    [HttpPost]
    [Route("/embedded/log/")]
    [EnableCors()]
    public ActionResult Log(ParametersLog parameters)
    {
        ....
    }
}

如果没有 CustomClientStore，我可以调用 services.AddCors(setup => setup.AddDefaultPolicy... 来接受 CORS 但是现在我需要使用 builder.AddClientStore<CustomClientStore>(); 因为 CustomProfileService.

我该如何解决？谢谢

Answer 1

这个GitHubissue可能会给你一些线索。

也就是说：

Solved When using Endpoint Routing CORS and IdentityServer4, the call to UseCors() must be after UseRouting() but BEFORE UseIdentityServer() and UseAuthorization(). Otherwise it will appear to work but Pre-Flight checks will fail

IdentityServer4 中自定义控制器和 CustomClientStore 的 CORS 问题

CORS problem with custom controller and CustomClientStore in IdentityServer4

cors

asp.net-core

identityserver4