Ldap認証とデータベース機関へのSpringセキュリティの切り替え

Question

WebページとWebサービスにデータベース認証を実装しました。両方でうまく機能するので、Ldap認証を追加する必要があります。リモートのLdapサーバー（ユーザー名とパスワードを使用）を介して認証する必要があり、ユーザーが存在する場合、ユーザーロールにデータベースを使用する必要があります（データベースのユーザー名はLdapと同じユーザー名です）。したがって、上記のように、実際のコードからLdapおよびデータベース認証に切り替える必要があります。私のコードは：SecurityConfigクラスです

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled = true, prePostEnabled = true, proxyTargetClass = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    @Qualifier("userDetailsService")
    UserDetailsService userDetailsService;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
    }

    @Bean
    public PasswordEncoder passwordEncoder(){
        PasswordEncoder encoder = new BCryptPasswordEncoder();
        return encoder;
    }

    @Configuration
    @Order(1)
    public static class ApiWebSecurityConfig extends WebSecurityConfigurerAdapter{
        @Override
        protected void configure(HttpSecurity http) throws Exception {
             http.csrf().disable()
             .antMatcher("/client/**")
             .authorizeRequests()
             .anyRequest().authenticated()
             .and()
             .httpBasic();
        }
    }

    @Configuration
    @Order(2)
    public static class FormWebSecurityConfig extends WebSecurityConfigurerAdapter{

        @Override
        public void configure(WebSecurity web) throws Exception {
            web
            //Spring Security ignores request to static resources such as CSS or JS files.
            .ignoring()
            .antMatchers("/static/**");
        }

        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http
            .authorizeRequests() //Authorize Request Configuration
                //the / and /register path are accepted without login
                //.antMatchers("/", "/register").permitAll()
                //the /acquisition/** need admin role
                //.antMatchers("/acquisition/**").hasRole("ADMIN")
                //.and().exceptionHandling().accessDeniedPage("/Access_Denied");
                //all the path need authentication
                .anyRequest().authenticated()
                .and() //Login Form configuration for all others
            .formLogin()
                .loginPage("/login")
                //important because otherwise it goes in a loop because login page require authentication and authentication require login page
                    .permitAll()
            .and()
            .logout()
                .logoutSuccessUrl("/login?logout")
                .permitAll();
             // CSRF tokens handling
        }
    }

MyUserDetailsS​​erviceクラス

@Service("userDetailsService")
public class MyUserDetailsService implements UserDetailsService {

    @Autowired
    private UserServices userServices;
    static final Logger LOG = LoggerFactory.getLogger(MyUserDetailsService.class);

    @Transactional(readOnly=true)
    @Override
    public UserDetails loadUserByUsername(final String username){
        try{
            com.domain.User user = userServices.findById(username);
            if (user==null)
                LOG.error("Threw exception in MyUserDetailsService::loadUserByUsername : User doesn't exist" ); 
            else{
                List<GrantedAuthority> authorities = buildUserAuthority(user.getUserRole());
                return buildUserForAuthentication(user, authorities);
            }
        }catch(Exception e){
            LOG.error("Threw exception in MyUserDetailsService::loadUserByUsername : " + ErrorExceptionBuilder.buildErrorResponse(e));  }
        return null;
    }

    // Converts com.users.model.User user to
    // org.springframework.security.core.userdetails.User
    private User buildUserForAuthentication(com.domain.User user, List<GrantedAuthority> authorities) {
        return new User(user.getUsername(), user.getPassword(), user.isEnabled(), true, true, true, authorities);
    }

    private List<GrantedAuthority> buildUserAuthority(Set<UserRole> userRoles) {

        Set<GrantedAuthority> setAuths = new HashSet<GrantedAuthority>();

        // Build user's authorities
        for (UserRole userRole : userRoles) {
            setAuths.add(new SimpleGrantedAuthority(userRole.getUserRoleKeys().getRole()));
        }

        List<GrantedAuthority> Result = new ArrayList<GrantedAuthority>(setAuths);

        return Result;
    }

だから私はする必要があります：

1）WebページのログインページおよびWebサービスのユーザー名とパスワードからのユーザーのアクセス。これはLdapを介して実行する必要があります。

2）データベースクエリがユーザーを認証するために必要なユーザーのユーザー名。これを実装する方法はありますか？ありがとう

正しいコードで更新：@Mの後に私はMyAuthoritiesPopulatorの代わりにMyUserDetailsServiceクラスを作成し、データベースとLdapでの認証が機能するようにアドバイスします：

    @Service("myAuthPopulator")
public class MyAuthoritiesPopulator implements LdapAuthoritiesPopulator {

    @Autowired
    private UserServices userServices;
    static final Logger LOG = LoggerFactory.getLogger(MyAuthoritiesPopulator.class);

    @Transactional(readOnly=true)
    @Override
    public Collection<? extends GrantedAuthority> getGrantedAuthorities(DirContextOperations userData, String username) {
        Set<GrantedAuthority> authorities = new HashSet<GrantedAuthority>();
        try{
            com.domain.User user = userServices.findById(username);
            if (user==null)
                LOG.error("Threw exception in MyAuthoritiesPopulator::getGrantedAuthorities : User doesn't exist into ATS database" );  
            else{
                for(UserRole userRole : user.getUserRole()) {
                    authorities.add(new SimpleGrantedAuthority(userRole.getUserRoleKeys().getRole()));
                }
                return authorities;
            }
        }catch(Exception e){
            LOG.error("Threw exception in MyAuthoritiesPopulator::getGrantedAuthorities : " + ErrorExceptionBuilder.buildErrorResponse(e)); }
        return authorities;
    }
}

securityConfigを次のように変更しました。

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled = true, prePostEnabled = true, proxyTargetClass = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    @Qualifier("myAuthPopulator")
    LdapAuthoritiesPopulator myAuthPopulator;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {

         auth.ldapAuthentication()
          .contextSource()
            .url("ldap://127.0.0.1:10389/dc=example,dc=com")
//          .managerDn("")
//          .managerPassword("")
          .and()   
            .userSearchBase("ou=people")
            .userSearchFilter("(uid={0})")
            .ldapAuthoritiesPopulator(myAuthPopulator);     
    }

    @Configuration
    @Order(1)
    public static class ApiWebSecurityConfig extends WebSecurityConfigurerAdapter{
        @Override
        protected void configure(HttpSecurity http) throws Exception {
             http.csrf().disable()
             .antMatcher("/client/**")
             .authorizeRequests()
             //Excluede send file from authentication because it doesn't work with spring authentication
             //TODO add Java authentication to send method
             .antMatchers(HttpMethod.POST, "/client/file").permitAll()
             .anyRequest().authenticated()
             .and()
             .httpBasic();
        }
    }

    @Configuration
    @Order(2)
    public static class FormWebSecurityConfig extends WebSecurityConfigurerAdapter{

        @Override
        public void configure(WebSecurity web) throws Exception {
            web
            //Spring Security ignores request to static resources such as CSS or JS files.
            .ignoring()
            .antMatchers("/static/**");
        }

        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http
            .authorizeRequests() //Authorize Request Configuration
                //the "/" and "/register" path are accepted without login
                //.antMatchers("/", "/register").permitAll()
                //the /acquisition/** need admin role
                //.antMatchers("/acquisition/**").hasRole("ADMIN")
                //.and().exceptionHandling().accessDeniedPage("/Access_Denied");
                //all the path need authentication
                .anyRequest().authenticated()
                .and() //Login Form configuration for all others
            .formLogin()
                .loginPage("/login")
                //important because otherwise it goes in a loop because login page require authentication and authentication require login page
                    .permitAll()
            .and()
            .logout()
                .logoutSuccessUrl("/login?logout")
                .permitAll();
        }
    }
}

Apache Directory Studioで作成したLDAP開発環境

Answer 1

CustomAuthenticationProviderを作成する必要がありますAuthenticationProvider、およびauthenticateメソッドのオーバーライド、例：

@Component
public class CustomAuthenticationProvider
    implements AuthenticationProvider {

    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
        String username = authentication.getName();
        String password = authentication.getCredentials().toString();

        boolean authenticated = false;
        /**
         * Here implements the LDAP authentication
         * and return authenticated for example
         */
        if (authenticated) {

            String usernameInDB = "";
            /**
             * Here look for username in your database!
             * 
             */
            List<GrantedAuthority> grantedAuths = new ArrayList<>();
            grantedAuths.add(new     SimpleGrantedAuthority("ROLE_USER"));
            Authentication auth = new     UsernamePasswordAuthenticationToken(usernameInDB, password,     grantedAuths);
            return auth;
        } else {
            return null;
        }
    }

    @Override
    public boolean supports(Class<?> authentication) {
        return     authentication.equals(UsernamePasswordAuthenticationToken.class);
    }

}

次に、SecurityConfigで、configureをオーバーライドする必要があります thats use AuthenticationManagerBuilder：

@Override
public void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.authenticationProvider(this.authenticationProvider);
}

これを行うCustomAuthenticationProviderを自動配線できます。

@Autowired
private CustomAuthenticationProvider authenticationProvider;

これを行うと、デフォルトの認証動作をオーバーライドできます。

Answer 2

また、この章 Spring Docu Custom Authenicator を見つけて、LDAPとDBユーザーの間に独自のスイッチを作成しました。優先順位を設定してログインデータを簡単に切り替えることができます（私の場合は[〜＃〜] ldap [〜＃〜]が勝ちます）。

LDAPユーザーデータ用のyaml構成ファイルを使用してLDAPを構成しましたが、ここでは詳しく説明しません。これはこれで簡単にできます Spring Docu LDAP Configuration 。

重要な部分を強調するために、logger/javadocなどの混乱から次の例を削除しました。 @Order注釈は、ログインデータが使用される優先順位を決定します。メモリ内の詳細は、開発者専用のデバッグユーザーです。

SecurityWebConfiguration

@Configuration
@EnableWebSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

  @Inject
  private Environment env;
  @Inject
  private LdapConfiguration ldapConfiguration;

  @Inject
  private BaseLdapPathContextSource contextSource;
  @Inject
  private UserDetailsContextMapper userDetailsContextMapper;

  @Inject
  private DBAuthenticationProvider dbLogin;

  @Inject
  @Order(10) // the lowest number wins and is used first
  public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
    auth.userDetailsService(new InMemoryUserDetailsManager(getInMemoryUserDetails()));
  }

  @Inject
  @Order(11) // the lowest number wins and is used first
  public void configureLDAP(AuthenticationManagerBuilder auth) throws Exception {
    if (ldapConfiguration.isLdapEnabled()) {
      auth.ldapAuthentication().userSearchBase(ldapConfiguration.getUserSearchBase())
          .userSearchFilter(ldapConfiguration.getUserSearchFilter())
          .groupSearchBase(ldapConfiguration.getGroupSearchBase()).contextSource(contextSource)
          .userDetailsContextMapper(userDetailsContextMapper);
    }
  }

  @Inject
  @Order(12) // the lowest number wins and is used first
  public void configureDB(AuthenticationManagerBuilder auth) throws Exception {
    auth.authenticationProvider(dbLogin);
  }
}

DBオーセンティケーター

@Component
public class DBAuthenticationProvider implements AuthenticationProvider {

  @Override
  public Authentication authenticate(Authentication authentication) throws AuthenticationException {
    String name = authentication.getName();
    String password = authentication.getCredentials().toString();

   // your code to compare to your DB
  }

  @Override
  public boolean supports(Class<?> authentication) {
    return authentication.equals(UsernamePasswordAuthenticationToken.class);
  }

  /**
   * @param original <i>mandatory</i> - input to be hashed with SHA256 and HEX encoding
   * @return the hashed input
   */
  private String sha256(String original) {
    MessageDigest md = null;
    try {
      md = MessageDigest.getInstance("SHA-256");
    } catch (NoSuchAlgorithmException e) {
      throw new AuthException("The processing of your password failed. Contact support.");
    }

    if (false == Strings.isNullOrEmpty(original)) {
      md.update(original.getBytes());
    }

    byte[] digest = md.digest();
    return new String(Hex.encodeHexString(digest));
  }

  private class AuthException extends AuthenticationException {
    public AuthException(final String msg) {
      super(msg);
    }
  }
}

詳細についてはお気軽にお問い合わせください。これが他の誰かに役立つことを願っています：D