java - Spring Security - 指定哪个 X509 可以访问哪个特定端点

Question

关于如何使用 Spring Security 来指定哪个客户端证书可以访问哪个特定的预定义端点的小问题，请。
通过预定义端点，我的意思是 Web 应用程序具有默认端点(不是我通过 @RestController 定义的那些)，例如执行器端点 /actuator/health , /actuator/prometheus ，或 Spring Cloud Config 端点，例如 /config/myservice/ @PreAuthorize没有可能.
我只想指定哪个客户端证书可以访问哪个端点，例如:

带有 UID=Alice 的客户端证书可以访问/actuator/health和 /config/myservice .

带有 UID=Bob 的客户端证书可以访问/actuator/prometheus

网上有很多例子， How to extract X509 certificate :

https://www.baeldung.com/x-509-authentication-in-spring-security

https://blog.codecentric.de/en/2018/08/x-509-client-certificates-with-spring-security/

但是如何在应用程序中配置它，即哪个证书可以访问什么的这种映射？
谢谢

Answer 1

@Setu 为您提供了解决问题的基本信息。
请考虑以下改编自 one of the articles 中的代码的代码你引用了:

@SpringBootApplication
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class X509AuthenticationServer extends WebSecurityConfigurerAdapter {
  ...

  @Override
  protected void configure(HttpSecurity http) throws Exception {
    http
      .authorizeRequests()
        // Define the mapping between the different endpoints
        // and the corresponding user roles
        .antMatchers("/actuator/health").hasRole("ACTUATOR_HEALTH")
        .antMatchers("/actuator/prometheus").hasRole("ACTUATOR_PROMETEUS")
        .antMatchers("/config/myservice").hasRole("CONFIG_MYSERVICE")
        // Please, adjust the fallback as appropriate
        .anyRequest().authenticated()
      .and()
        // Configure X509Configurer (https://docs.spring.io/spring-security/site/docs/current/api/org/springframework/security/config/annotation/web/configurers/X509Configurer.html)
        .x509()
          .subjectPrincipalRegex("CN=(.*?)(?:,|$)")
          .userDetailsService(userDetailsService())
    ;
  }

  @Bean
  public UserDetailsService userDetailsService() {
    // Ideally this information will be obtained from a database or some
    // configuration information
    return new UserDetailsService() {

      @Override
      public UserDetails loadUserByUsername(String username) {

        Objects.requireNonNull(username);

        List<GrantedAuthority> authorities = null;
        switch (username) {
          // Match the different X509 certificate CNs. Maybe you can use the
          // X509 certificate subject distinguished name to include the role in
          // some way and obtain it directly with the subjectPrincipalRegex
          case "Alice":
            authorities = AuthorityUtils
              .commaSeparatedStringToAuthorityList("ROLE_ACTUATOR_HEALTH, ROLE_CONFIG_MYSERVICE");
            break;

          case "Bob":
            authorities = AuthorityUtils
              .commaSeparatedStringToAuthorityList("ROLE_ACTUATOR_PROMETHEUS");
            break;

          default:
            throw new UsernameNotFoundException(String.format("User '%s' not found!", username));
        }

        return new User(username, "", authorities);
      }
    };
  }
}

请根据需要调整代码以满足您的实际端点和用户。