401 而不是 403 与 Spring Boot 2

Question

使用 Spring Boot 1.5.6.RELEASE 我能够发送 HTTP 状态代码 401 而不是 403，如 How let spring security response unauthorized(http 401 code) if requesting uri without authentication 中所述，这样做：

public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        //...
        http.exceptionHandling()
                .authenticationEntryPoint(new Http401AuthenticationEntryPoint("myHeader"));
        //...
    }
}

使用org.springframework.boot.autoconfigure.security.Http401AuthenticationEntryPoint 类。

我刚刚升级到Spring Boot 2.0.0.RELEASE，发现不再有这样的类（至少在那个包中）。

问题：

• 这个类 (Http401AuthenticationEntryPoint) 在 Spring Boot 中是否存在？

• 如果不是，那么在现有项目中保持相同行为以保持与依赖此状态码 (401) 而不是 403 的其他实现的一致性的好选择是什么？

Answer 1

注意

默认情况下当 spring-boot-starter-security 作为依赖项添加并执行未经授权的请求时，Spring Boot 2 将返回 401。

如果您放置一些自定义配置来修改安全机制行为，这可能会改变。如果是这种情况，并且您确实需要强制设置401 状态，请阅读以下原帖。

原帖

类 org.springframework.boot.autoconfigure.security.Http401AuthenticationEntryPoint 被删除以支持 org.springframework.security.web.authentication.HttpStatusEntryPoint。

在我的情况下，代码如下所示：

public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        //...
        http.exceptionHandling()
            .authenticationEntryPoint(new HttpStatusEntryPoint(HttpStatus.UNAUTHORIZED));
        //...
    }
}

奖金

如果您需要在响应正文中返回一些信息或以某种方式自定义响应，您可以执行以下操作：

1- 扩展AuthenticationEntryPoint

public class MyEntryPoint implements AuthenticationEntryPoint {
    private final HttpStatus httpStatus;
    private final Object responseBody;

    public MyEntryPoint(HttpStatus httpStatus, Object responseBody) {
        Assert.notNull(httpStatus, "httpStatus cannot be null");
        Assert.notNull(responseBody, "responseBody cannot be null");
        this.httpStatus = httpStatus;
        this.responseBody = responseBody;
    }

    @Override
    public final void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) throws IOException {
        response.setStatus(httpStatus.value());

        try (PrintWriter writer = response.getWriter()) {
            writer.print(new ObjectMapper().writeValueAsString(responseBody));
        }
    }
}

2- 为安全配置提供MyEntryPoint 的实例

public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // customize your response body as needed
        Map<String, String> responseBody = new HashMap<>();
        responseBody.put("error", "unauthorized");

        //...
        http.exceptionHandling()
            .authenticationEntryPoint(new MyEntryPoint(HttpStatus.UNAUTHORIZED, responseBody));
        //...
    }
}

Answer 2

只是为了详细说明@lealceldeiro 的答案：

在 Spring Boot 2 之前，我的 Securiy Configuration 类看起来像这样：

@Configuration
public class MyConfig extends WebSecurityConfigurerAdapter {

    @Bean
    public Http401AuthenticationEntryPoint securityException401EntryPoint() {
      return new Http401AuthenticationEntryPoint("Bearer realm=\"webrealm\"");
    }

    @Autowired
    private Http401AuthenticationEntryPoint authEntrypoint;

    @Override
    protected void configure(HttpSecurity http) throws Exception {

      // some http configuration ...

      // Spring Boot 1.5.x style
      http.exceptionHandling().authenticationEntryPoint(authEntrypoint);
    }
//...
}

现在在 Spring Boot 2 中它看起来像这样：

@Configuration
public class MyConfig extends WebSecurityConfigurerAdapter {

    //Bean configuration for Http401AuthenticationEntryPoint can be removed

    //Autowiring also removed

    @Override
    protected void configure(HttpSecurity http) throws Exception {

      // some http configuration ...

      // Spring Boot 2 style
      http.exceptionHandling().authenticationEntryPoint(new HttpStatusEntryPoint(HttpStatus.UNAUTHORIZED));
    }
//...
}

在 Spring Boot Github Repo 中也可以查看 comment > PR 删除 Http401AuthenticationEntryPoint。

Answer 3

Http401AuthenticationEntryPoint 已被删除。

请参阅 Spring Boot Github 存储库 > 问题 #10715（删除 Http401AuthenticationEntryPoint）：

移除 Http401AuthenticationEntryPoint

rwinch 于 2017 年 10 月 20 日发表评论
据我所知，它没有在 Spring Boot 代码库中使用，因此删除 Http401AuthenticationEntryPoint 可能会很好。

根据您的要求，您可以使用：

• HttpStatusEntryPoint
• BasicAuthenticationEntryPoint

Answer 4

您可以通过覆盖 AuthenticationEntryPoint 类来自定义您的逻辑 这应该可以工作：

@Component public class AuthEntryPointException implements AuthenticationEntryPoint, Serializable {

    private static final long serialVersionUID = -8970718410437077606L;

    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response,
        AuthenticationException authException) throws IOException {
        response.setStatus(HttpStatus.SC_UNAUTHORIZED);
        response.setContentType("application/json");
        response.getWriter().write("{\"result\":\"UNAUTHORIZED\",\"message\":\"UNAUTHORIZED or Invalid Token\"}");
    }
}