使用多个 ServiceStack 的身份验证提供程序会引发错误

Question

我打算使用2个ServiceStack的身份验证提供程序：一个基于CredentialsAuthProvider的自定义提供程序，称为remotecreds和内置JwtAuthProvider。 我的AppHost注册码如下所示

appHost.Plugins.Add(new AuthFeature(() => new UserSession(),
                new IAuthProvider[]
                {
                    new JwtAuthProvider(AppSettings)
                    {
                        RequireSecureConnection = false,
                        HashAlgorithm = "RS256",
                        PublicKeyXml = publicKeyXml,
                        Audiences = new List<string> { $"{AppSettings.GetDictionary("Auth")["Url"]}/resources" },
                        PopulateSessionFilter = PopulateSessionFilter
                    },
                    new RemoteCredentialsAuthProvider(AppSettings)
                    {
                        PopulateSessionFilter = PopulateSessionFilter                  
                    },
                }));

当我使用自定义身份验证提供程序 ( POST /auth/remotecreds 进行身份验证时，ServiceStack 返回以下错误，尽管身份验证提供程序的代码已正确执行

{
    "responseStatus": {
        "errorCode": "NotSupportedException",
        "message": "PrivateKey required to use: RS256",
        "stackTrace": "[Authenticate: 25/04/2019 9:59:25 AM]:n[REQUEST: {provider:remotecreds,userName:admin,password:Pa$$word123}]nSystem.NotSupportedException: PrivateKey required to use: RS256rn   at ServiceStack.Auth.JwtAuthProvider.GetHashAlgorithm(IRequest req) in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack\Auth\JwtAuthProvider.cs:line 87rn   at ServiceStack.Auth.JwtAuthProvider.CreateJwtBearerToken(IRequest req, IAuthSession session, IEnumerable`1 roles, IEnumerable`1 perms) in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack\Auth\JwtAuthProvider.cs:line 118rn   at ServiceStack.Auth.JwtAuthProvider.Execute(AuthFilterContext authContext) in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack\Auth\JwtAuthProvider.cs:line 57rn   at ServiceStack.Auth.AuthenticateService.Post(Authenticate request) in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack\Auth\AuthenticateService.cs:line 253rn   at ServiceStack.Host.ServiceRunner`1.ExecuteAsync(IRequest req, Object instance, TRequest requestDto) in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack\Host\ServiceRunner.cs:line 133",
        "errors": []
    }
}

如果我注释掉 AppHost 中的JwtAuthProvider注册，则上面的相同调用成功。

所以在这里我很困惑为什么 ServiceStack 调用JwtAuthProvider而我清楚地针对我的自定义身份验证提供程序进行身份验证。

Answer 1

问题是您的JwtAuthProvider配置错误，如果要使用RSA*哈希算法，则需要使用私钥进行配置：

new JwtAuthProvider(AppSettings) { 
    HashAlgorithm = "RS256",
    PrivateKeyXml = AppSettings.GetString("PrivateKeyXml") 
}

它仍然会尝试使用您的自定义身份验证提供程序进行身份验证，但如果您注册了JwtAuthProvider，它将尝试使用 BearerToken 中的 JWT 令牌填充AuthenticateResponse，因此当用户对您的身份验证提供程序进行身份验证时，例如：

var clientnew JsonServiceClient(baseUrl);
var authResponse = client.Post(new Authenticate {
    provider = "remotecreds",
    UserName = username,
    Password = password,
    RememberMe = true,
});

他们将有权访问填充在以下位置的 JWT 令牌：

var jwt = authResponse.BearerToken;

因此，如果配置正确，它将返回填充的 JWT 令牌 BearerToken 或如果您删除JwtAuthProvider它将不会尝试填充它。