如何使用Spring Security检索CAS服务器发送的属性和用户名

Question

我有一个spring引导应用程序，它本质上是MVC。此应用程序的所有页面都由CAS SSO进行身份验证。我使用了在https://www.baeldung.com/spring-security-cas-sso中描述的"spring-security-cas“，一切都像预期的那样工作正常。然而，我有一个问题-那就是，我不能在下面的@Bean中检索CAS服务器发送的属性和用户名。要检索CAS服务器发送的所有属性和用户名，我需要做什么？

@Bean
public CasAuthenticationProvider casAuthenticationProvider() {

    CasAuthenticationProvider provider = new CasAuthenticationProvider();
    provider.setServiceProperties(serviceProperties());
    provider.setTicketValidator(ticketValidator());
    provider.setUserDetailsService(
      s -> new User("casuser", "Mellon", true, true, true, true,
        AuthorityUtils.createAuthorityList("ROLE_ADMIN")));
    provider.setKey("CAS_PROVIDER_LOCALHOST_9000");
    return provider;
}

Answer 1

首先，您需要在attributeRepository服务器的attributeRepository部分配置CAS源和要检索的属性，如下所示：

cas.authn.attributeRepository.jdbc[0].singleRow=false
cas.authn.attributeRepository.jdbc[0].sql=SELECT * FROM USERATTRS WHERE {0}
cas.authn.attributeRepository.jdbc[0].username=username
cas.authn.attributeRepository.jdbc[0].role=role 
cas.authn.attributeRepository.jdbc[0].email=email
cas.authn.attributeRepository.jdbc[0].url=jdbc:hsqldb:hsql://localhost:9001/xdb
cas.authn.attributeRepository.jdbc[0].columnMappings.attrname=attrvalue

cas.authn.attributeRepository.defaultAttributesToRelease=username,email,role

查看CAS博客中的this示例。

然后，您需要在服务中实现一个AuthenticationUserDetailsService来读取从CAS身份验证返回的属性，如下所示：

@Component
public class CasUserDetailService implements AuthenticationUserDetailsService {

    @Override
    public UserDetails loadUserDetails(Authentication authentication) throws UsernameNotFoundException {
        CasAssertionAuthenticationToken casAssertionAuthenticationToken = (CasAssertionAuthenticationToken) authentication;
        AttributePrincipal principal = casAssertionAuthenticationToken.getAssertion().getPrincipal();
        Map attributes = principal.getAttributes();
        String uname = (String) attributes.get("username");
        String email = (String) attributes.get("email");
        String role = (String) attributes.get("role");
        String username = authentication.getName();
        Collection<SimpleGrantedAuthority> collection = new ArrayList<SimpleGrantedAuthority>();
        collection.add(new SimpleGrantedAuthority(role));
        return new User(username, "", collection);
    }
}

然后，使用provider.setAuthenticationUserDetailsService(casUserDetailService);调整您的authenticationProvider