如何在.NET Core 2中设置AuthenticationScheme和AutomaticAuthenticate？

Question

我试图按照本指南中的.NET核心运行测试时，让用户的登录2

http://geeklearning.io/how-to-deal-with-identity-when-testing-an-asp-net-core-application/

它说我应该用于测试目的，这样的配置认证中间件：

public class TestAuthenticationOptions : AuthenticationOptions 
{ 
    public virtual ClaimsIdentity Identity { get; } = new ClaimsIdentity(new Claim[] 
    { 
     new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier", Guid.NewGuid().ToString()), 
     new Claim("http://schemas.microsoft.com/identity/claims/tenantid", "test"), 
     new Claim("http://schemas.microsoft.com/identity/claims/objectidentifier", Guid.NewGuid().ToString()), 
     new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname", "test"), 
     new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname", "test"), 
     new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/upn", "test"), 
    }, "test"); 

    public TestAuthenticationOptions() 
    { 
     this.AuthenticationScheme = "TestAuthenticationMiddleware"; 
     this.AutomaticAuthenticate = true; 
    } 
} 

由于AuthenticationOptions类已将AuthenticationScheme和AutomaticAuthenticate属性从.NET Core 2 cf中的AuthenticationOptions实例中删除，因此这不起作用。 https://docs.microsoft.com/en-us/aspnet/core/migration/1x-to-2x/identity-2x#setting-default-authentication-schemes

所以，现在我不知道怎么去登录在测试中的.NET核心2

Answer 1

你不能这样做是为了工作方式了。 AuthenticationScheme只能在Startup.cs中设置。像你这样分支是不可能的。 而不是测试计划，您应该使用您的应用程序中使用的计划。

public class TestAuthenticationOptions : AuthenticationOptions 
{ 
public virtual ClaimsIdentity Identity { get; } = new ClaimsIdentity(new Claim[] 
{ 
    new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier", Guid.NewGuid().ToString()), 
    new Claim("http://schemas.microsoft.com/identity/claims/tenantid", "test"), 
    new Claim("http://schemas.microsoft.com/identity/claims/objectidentifier", Guid.NewGuid().ToString()), 
    new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname", "test"), 
    new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname", "test"), 
    new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/upn", "test"), 
}, "<ProductionScheme>"); 

    public TestAuthenticationOptions 
    { 
     //nothing to do here. 
    } 
} 

在启动你希望：

services.AddAuthentication("<ProductionScheme>"); 

也许这可以帮助你：

https://github.com/aspnet/Announcements/issues/262

Answer 2

您可以设置配置选项在startup.cs

services.AddAuthentication(config => { 
    this.AuthenticationScheme = "TestAuthenticationMiddleware"; 
    this.AutomaticAuthenticate = true; 
}); 

我在.net core 2.0中找到的大多数代码都使用这种方式来配置AuthenticationOptions。但是如果你需要创建自己的AuthenticationOptions类并使用。您可以制定自己的计划，这意味着您还需要制作AuthenticationHandler<TestAuthenticationOptions>课程（让我们称之为TestAuthenticationHandler）并将其添加为计划。

services.AddAuthentication(config => { 
    this.AuthenticationScheme = "TestAuthenticationMiddleware"; 
    this.AutomaticAuthenticate = true; 
}) 
.AddScheme<TestAuthenticationHandler, TestAuthenticationOptions>("TestAuthenticationMiddleware", o => {});