java - 处理 Spring Boot 资源服务器中的安全异常

Question

如何让我的自定义 ResponseEntityExceptionHandler 或 OAuth2ExceptionRenderer 在纯资源服务器上处理 Spring 安全性引发的异常？

我们实现了一个

@ControllerAdvice
@RestController
public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {

所以每当资源服务器上出现错误时，我们希望它回答

{
  "message": "...",
  "type": "...",
  "status": 400
}

资源服务器使用 application.properties 设置:

security.oauth2.resource.userInfoUri: http://localhost:9999/auth/user

对我们的身份验证服务器的请求进行身份验证和授权。

然而，任何 spring 安全错误都会绕过我们的异常处理程序

    @ExceptionHandler(InvalidTokenException.class)
    public ResponseEntity<Map<String, Object>> handleInvalidTokenException(InvalidTokenException e) {
        return createErrorResponseAndLog(e, 401);
    }

并产生任一

{
  "timestamp": "2016-12-14T10:40:34.122Z",
  "status": 403,
  "error": "Forbidden",
  "message": "Access Denied",
  "path": "/api/templates/585004226f793042a094d3a9/schema"
}

或

{
  "error": "invalid_token",
  "error_description": "5d7e4ab5-4a88-4571-b4a4-042bce0a076b"
}

那么如何配置资源服务器的安全异常处理呢？我所找到的只是关于如何通过实现自定义 OAuth2ExceptionRenderer 来自定义身份验证服务器的示例。但我找不到将它连接到资源服务器安全链的位置。

我们唯一的配置/设置是这样的:

@SpringBootApplication
@Configuration
@ComponentScan(basePackages = {"our.packages"})
@EnableAutoConfiguration
@EnableResourceServer

Answer 1

如前面的评论中所述，请求在到达 MVC 层之前被安全框架拒绝，因此 @ControllerAdvice 在这里不是一个选项。

Spring Security 框架中有 3 个接口(interface)可能在这里感兴趣:

• org.springframework.security.web.authentication.AuthenticationSuccessHandler
• org.springframework.security.web.authentication.AuthenticationFailureHandler
• org.springframework.security.web.access.AccessDeniedHandler

您可以创建每个接口(interface)的实现，以自定义为各种事件发送的响应:登录成功、登录失败、尝试访问权限不足的 protected 资源。

以下将在登录尝试失败时返回 JSON 响应:

@Component
public class RestAuthenticationFailureHandler implements AuthenticationFailureHandler
{
  @Override
  public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response,
      AuthenticationException ex) throws IOException, ServletException
  {
    response.setStatus(HttpStatus.FORBIDDEN.value());
    
    Map<String, Object> data = new HashMap<>();
    data.put("timestamp", new Date());
    data.put("status",HttpStatus.FORBIDDEN.value());
    data.put("message", "Access Denied");
    data.put("path", request.getRequestURL().toString());
    
    OutputStream out = response.getOutputStream();
    com.fasterxml.jackson.databind.ObjectMapper mapper = new ObjectMapper();
    mapper.writeValue(out, data);
    out.flush();
  }
}

您还需要向安全框架注册您的实现。在 Java 配置中，如下所示:

@Configuration
@EnableWebSecurity
@ComponentScan("...")
public class SecurityConfiguration extends WebSecurityConfigurerAdapter
{
  @Override
  public void configure(HttpSecurity http) throws Exception
  {
    http
       .addFilterBefore(corsFilter(), ChannelProcessingFilter.class)
       .logout()
       .deleteCookies("JESSIONID")
       .logoutUrl("/api/logout")
       .logoutSuccessHandler(logoutSuccessHandler())
       .and()
       .formLogin()
       .loginPage("/login")
       .loginProcessingUrl("/api/login")
       .failureHandler(authenticationFailureHandler())
       .successHandler(authenticationSuccessHandler())
       .and()
       .csrf()
       .disable()
       .exceptionHandling()
       .authenticationEntryPoint(authenticationEntryPoint())
       .accessDeniedHandler(accessDeniedHandler());
  }

  /**
   * @return Custom {@link AuthenticationFailureHandler} to send suitable response to REST clients in the event of a
   *         failed authentication attempt.
   */
  @Bean
  public AuthenticationFailureHandler authenticationFailureHandler()
  {
    return new RestAuthenticationFailureHandler();
  }

  /**
   * @return Custom {@link AuthenticationSuccessHandler} to send suitable response to REST clients in the event of a
   *         successful authentication attempt.
   */
  @Bean
  public AuthenticationSuccessHandler authenticationSuccessHandler()
  {
    return new RestAuthenticationSuccessHandler();
  }

  /**
   * @return Custom {@link AccessDeniedHandler} to send suitable response to REST clients in the event of an attempt to
   *         access resources to which the user has insufficient privileges.
   */
  @Bean
  public AccessDeniedHandler accessDeniedHandler()
  {
    return new RestAccessDeniedHandler();
  }
}