具有LDAP和数据库角色的Spring Security

Question

在我们的新保险项目中,我正在尝试使用Ldap 活动目录实现spring-security.

一旦用户在AD中找到,我想在AD上检查用户名/密码.我想从用户表(app授权用户)授权他在数据库中具有访问级别.有人可以提供样品/指出我的资源.

Answer 1

现在实现这一点的最简单方法（Spring Security 3.2.5.RELEASE）是通过实现一个自定义LdapAuthoritiesPopulator来使用自定义JdbcDaoImpl从数据库中获取权限。

代码

假设您使用的是默认数据库架构，并且您在 LDAP 中使用相同的用户名进行身份验证并作为authorities表中的外键，您只需要：

package demo;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Collection;
import java.util.List;

import org.springframework.jdbc.core.RowMapper;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.security.core.userdetails.jdbc.JdbcDaoImpl;

import org.springframework.ldap.core.DirContextOperations;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.ldap.userdetails.LdapAuthoritiesPopulator;

/*
 * You need to extend JdbcDaoImpl to expose the protected method loadUserAuthorities.
 */
public class CustomJdbcUserDetailsService extends JdbcDaoImpl {

    @Override
    public List<GrantedAuthority> loadUserAuthorities(String username) {
        return super.loadUserAuthorities(username);
    }
}


/*
 * Then, the only thing your populator needs to do is use the custom UserDetailsService above.
 */
public class CustomLdapAuthoritiesPopulator implements LdapAuthoritiesPopulator {

    private static final Logger LOGGER = LoggerFactory.getLogger(CustomLdapAuthoritiesPopulator.class);

    private CustomJdbcUserDetailsService service;

    public CustomLdapAuthoritiesPopulator(CustomJdbcUserDetailsService service) {
        this.service = service;
    }

    public Collection<? extends GrantedAuthority> getGrantedAuthorities(DirContextOperations user, String username) {
        return service.loadUserAuthorities(username);
    }

}

现在唯一剩下的就是配置要使用的 LDAP 身份验证提供程序CustomLdapAuthoritiesPopulator。

Java配置

在或的带@Configuration注释的子类中（取决于您的情况），添加以下内容：GlobalMethodSecurityConfigurationWebSecurityConfigurerAdapter

@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {

    /* other authentication configurations you might have */

    /*
     * This assumes that the dataSource configuring
     * the connection to the database has been Autowired
     * into this bean.
     *
     * Adapt according to your specific case.
     */
    CustomJdbcUserDetailsService customJdbcUserDetailsService = new CustomJdbcUserDetailsService();
    customJdbcUserDetailsService.setDataSource(dataSource);

    CustomLdapAuthoritiesPopulator customLdapAuthoritiesPopulator = new CustomLdapAuthoritiesPopulator(customJdbcUserDetailsService);

    auth.ldapAuthentication().ldapAuthoritiesPopulator(customLdapAuthoritiesPopulator)/* other LDAP configurations you might have */;

    /* yet more authentication configurations you might have */
}

有关工作示例，请参阅https://github.com/pfac/howto-spring-security。

XML 配置

免责声明：我一直只使用 Java 配置，所以请谨慎行事，可能会有一些错误。

与使用 LDAP 进行身份验证的其他配置不同，似乎没有漂亮的 XML 标记来自定义LdapAuthoritiesPopulator. 因此，必须手动完成。假设contextSource已经定义了配置到 LDAP 服务器的连接的 bean ，请将以下内容添加到您的 Spring XML 配置中：

<beans:bean id="customJdbcUserDetailsService" class="demo.CustomJdbcUserDetailsService" />
<beans:bean id="customLdapAuthoritiesPopulator" class="demo.CustomLdapAuthoritiesPopulator">
    <beans:constructor-arg ref="customJdbcUserDetailsService" />
</beans:bean>

<beans:bean id="ldapAuthProvider" class="org.springframework.security.ldap.authentication.LdapAuthenticationProvider">
    <beans:constructor-arg>
        <beans:bean class="org.springframework.security.ldap.authentication.BindAuthenticator">
            <beans:constructor-arg ref="contextSource" />
            <!--
                other configurations you might need
            -->
        </beans:bean>
    </beans:constructor-arg>
    <beans:constructor-arg ref="customLdapAuthoritiesPopulator" />
</beans:bean>

<security:authentication-manager>
  <security:authentication-provider ref="ldapAuthProvider" />
</security:authentication-manager>

来源：http : //spapas.github.io/2013/10/14/spring-ldap-custom-authorities/#spring-security-ldap-with-custom-authorities

Answer 2

您很可能必须执行自定义UserDetailsS​​erver，因为您通过 LDAP 进行身份验证，但通过数据库查询获取角色。UserDetailsS​​ervice 是一个接口。您将实现该接口，然后将自定义实现添加到 Spring Security 配置中，执行以下操作：

<beans:bean id="userDetailsService" class="com.app.MyUserDetailsServiceImpl" />

<authentication-manager>
  <authentication-provider user-service-ref="userDetailsService">
    <password-encoder hash="plaintext" />
  </authentication-provider>
</authentication-manager>

在 loadUserByUsername() 中，您将创建一个UserDetails，设置用户名、密码和“权限”（即角色）。

这篇博客文章有一个关于如何使用数据库来完成此操作的示例，您应该能够适应您的要求。