Auth0 API + Spring:如何从成功的 Auth0 API 响应中验证用户身份

Auth0 API + Spring: How to verify user identity from successful Auth0 API response

问题

我正在尝试创建一个应用程序,该应用程序在前端使用 Auth0 SPA + React 来对用户进行身份验证,而无需处理密码。然后,我想保护我使用 Auth 服务器创建的任何端点,我需要使用 Spring Framework[=58= 创建].

澄清一下,流程是

Frontend ->
Auth through Auth0 ->
Redirect to users dashboard on frontend ->
Make HTTP request to endpoint sending JWT returned from Auth0 ->
Endpoint makes request to my Auth Server sending JWT returned from Auth0 ->
Auth server either either returns 401 or user object based on JWT ->
Endpoint grabs data specific to that user from DB ->
Returns data to frontend

我已经使用 Auth0 提供的 快速入门指南 使我的前端正常工作,但我有一个弄清楚如何让我的 Auth 服务 验证用户有很多麻烦。

我相信我已经得出结论,我需要在 Auth0 上创建一个“API”并且获取一个 access token 并使用它来验证 JWT,在本例中它只是 access token 而不是我的前端包含的 JWT。我也让这部分工作,但似乎没有办法知道用户是谁。测试此“API”时,发送有效请求后我返回

{
  "iss": "https://${username}.auth0.com/",
  "sub": "${alphanumericCharacters}@clients",
  "aud": "${ApiIdentifier}",
  "iat": ${issuedAt},
  "exp": ${expiresAt},
  "azp": "${alphanumericCharacters}",
  "gty": "client-credentials"
}

虽然很高兴知道我走在正确的轨道上,但我似乎无法弄清楚如何处理此响应来找到用户。

预计

我希望在从我的 Auth Service[=18 验证 access_token 后能够识别特定用户=]

代码

我没有太多代码可以展示,但我会提供我的 Auth 服务

SecurityConfiguration.java

@EnableWebSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

    @Value("${auth0.audience}")
    private String audience;

    @Value("${spring.security.oauth2.resourceserver.jwt.issuer-uri}")
    private String issuer;

    @Override
    public void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.authorizeRequests()
                .mvcMatchers("/api/validate")
                    .authenticated()
                .and()
                .oauth2ResourceServer()
                    .jwt();
    }

    @Bean
    JwtDecoder jwtDecoder() {
        NimbusJwtDecoderJwkSupport jwtDecoder = (NimbusJwtDecoderJwkSupport)
                JwtDecoders.fromOidcIssuerLocation(issuer);

        OAuth2TokenValidator<Jwt> audienceValidator = new AudienceValidator(audience);
        OAuth2TokenValidator<Jwt> withIssuer = JwtValidators.createDefaultWithIssuer(issuer);
        OAuth2TokenValidator<Jwt> withAudience = new DelegatingOAuth2TokenValidator<>(withIssuer, audienceValidator);

        jwtDecoder.setJwtValidator(withAudience);

        return jwtDecoder;
    }

}

AudienceValidator.java

public class AudienceValidator implements OAuth2TokenValidator<Jwt> {
    private final String audience;

    public AudienceValidator(String audience) {
        this.audience = audience;
    }

    public OAuth2TokenValidatorResult validate(Jwt jwt) {
        OAuth2Error error = new OAuth2Error("invalid_token", "The required audience is missing", null);

        if (jwt.getAudience().contains(audience)) {
            return OAuth2TokenValidatorResult.success();
        }
        return OAuth2TokenValidatorResult.failure(error);
    }
}

ValidateController.java

@RestController
@RequestMapping("/api/validate")
public class ValidateController {

    @GetMapping
    public boolean validate() {
        return true;  // only returns if successfully authed
    }

}

阅读文档后,我找到了解决方案。

事实证明,我不需要在 Auth0 上创建“API”,而是需要使用来自 Auth0Applications 端点。 Auth0 根据您的帐户提供许多端点,您可以从任何应用程序(CLI、服务器、客户端等)中充分利用这些端点,只要您可以:

  • 发出 HTTP 请求
  • 提供凭据

所以获取用户信息的方式是explained here

数据流

使用我的项目auth/data flow 差不多:

  • 使用@auth0/auth0-spa-js on the frontend, you can grab a users access token after a successful auth by using the getTokenSilently() method.

  • 向您的 Rest 服务发送 HTTP 请求

  • Rest 服务 将该令牌发送到您的 Auth 服务

  • Auth Service 发送 GET 请求到 https://myAuth0Username.auth0.com/userinfo Authorization: Bearer ${access_token} header。 Example

  • 如果从 Auth0

    成功验证
    • Returns 您的用户信息,例如 "name"、"email" 等
  • 其他

    • Returns 403 禁止 HTTP 状态
  • Auth Service 然后 returns user object to 休息服务

  • Rest Service 然后为该端点执行必要的逻辑(数据库查询、另一个 HTTP 请求等)

用于验证令牌和 return 用户的示例 Auth 服务端点

ValidateController.java

package x.SpringTodo_Auth.Controllers;

import x.SpringTodo_Auth.Models.User;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
@RequestMapping("/api/validate")
public class ValidateController {

    @GetMapping
    public Object validate() {
        // Create and set the "Authorization" header before sending HTTP request
        HttpHeaders headers = new HttpHeaders();
        headers.set("Authorization", "Bearer " + access_token);
        HttpEntity<String> entity = new HttpEntity<>("headers", headers);

        // Use the "RestTemplate" API provided by Spring to make the HTTP request
        RestTemplate restTemplate = new RestTemplate();
        Object user = restTemplate.exchange("https://myAuth0Username.auth0.com/userinfo", HttpMethod.POST, entity, User.class);
        return user;
    }

}

User.java(这是作为最后一个参数传递给restTemplate.exchange(...)方法的class

package x.SpringTodo_Auth.Models;

public class User {

    private String sub;
    private String given_name;
    private String family_name;
    private String nickname;
    private String name;
    private String picture;
    private String locale;
    private String updated_at;
    private String email;
    private boolean email_verified;

    // Getters/setters (or you can use Lombok)
}