如何为 ActiveAuthenticationSchemes 设置默认值?

Joh*_*rre 5 c# .net-core asp.net-core-2.0

在我的 ASP.Net Core 2 项目中,我有一个AuthenticationHandler想要插入的自定义中间件。

public class BasicAuthenticationMiddleware : AuthenticationHandler<AuthenticationSchemeOptions>
{
    public BasicAuthenticationMiddleware(IOptionsMonitor<AuthenticationSchemeOptions> options,
        ILoggerFactory logger, UrlEncoder encoder, ISystemClock clock)
        : base(options, logger, encoder, clock)
    {
    }
    protected override Task<AuthenticateResult> HandleAuthenticateAsync()
    {
        var principal = new GenericPrincipal(new GenericIdentity("User"), null);
        var ticket = new AuthenticationTicket(principal, new AuthenticationProperties(), "BasicAuth");
        return Task.FromResult(AuthenticateResult.Success(ticket));
    }
}
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在我的启动中,我有以下内容:

public void ConfigureServices(IServiceCollection services)
{
    services.AddMvc();
    services.AddAuthentication(options =>
    {
        options.DefaultAuthenticateScheme = "BasicAuth";
        options.DefaultChallengeScheme = "BasicAuth";
        options.AddScheme("BasicAuth", x => {
            x.DisplayName = "BasicAuthenticationMiddleware";
            x.HandlerType = typeof(BasicAuthenticationMiddleware);
        });
    });
}
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最后我的视图控制器:

[Route("api/[controller]")]
public class ValuesController : Controller
{
    // GET api/values/Works
    [HttpGet]
    [Route("Works")]
    [Authorize(ActiveAuthenticationSchemes = "BasicAuth")]
    public string Works()
    {
        return "works";
    }

    // GET api/values/DoesNotWork
    [HttpGet]
    [Route("DoesNotWork")]
    [Authorize]
    public string DoesNotWork()
    {
        return "does not work";
    }

}
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HandleAuthenticateAsync当我指定ActiveAuthenticationSchemes我的方案名称时,我的身份验证器将被调用,否则不会。我有一个演示应用程序显示这里的行为:https : //github.com/JohnPAguirre/AuthenticationSchemaProblem

我希望我的BasicAuthenticationMiddleware每个人都使用我的演示逻辑登录。如何将ActiveAuthenticationSchemes所有请求的默认设置设为“BasicAuth”?

任何人都对我可能缺少的东西有任何想法?

Nev*_*ane 5

我确实设法设置了默认身份验证方案 通过将我想要的方案设置为 DefaultPolicy 的唯一身份验证方案进行授权。在您的配置中使用以下内容。我在两者之间使用过它AddMvcAddAuthentication并且效果很好。

services.AddAuthorization(config => {
    var def = config.DefaultPolicy;
    config.DefaultPolicy = new AuthorizationPolicy(def.Requirements, 
        new List<string>(){ "BasicAuth" });
});
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Dav*_*idG 4

我不认为你可以设置默认值,但你还有其他一些选择。

  1. 创建您自己的自定义授权属性:

    public class BasicAuthAuthorizeAttribute : AuthorizeAttribute
    {
        public BasicAuthAuthorizeAttribute()
        {
            ActiveAuthenticationSchemes = "BasicAuth";
        }
    }
    
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    并像以前一样在您的操作中使用它:

    [BasicAuthAuthorize]
    public string SomeAction()
    {
        //snip
    }
    
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  2. 将该Authorize属性添加到您的所有操作中,并仅在需要时覆盖它。为此,在您的 `` 方法中:

    public void ConfigureServices(IServiceCollection services)
    {
        services.AddMvc(options =>
        {
            options.Filters.Add(new AuthorizeAttribute
            {
                ActiveAuthenticationSchemes = "BasicAuth" 
            });
    
        });
    
        //snip
    }
    
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    并覆盖它:

    [AllowAnonymous]
    public string UnsecureAction()
    {
        //snip
    }
    
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