我如何阅读所有使用keycloak和Spring的用户？

Question

我正在使用Keycloak3.4和Spring Boot开发一个web应用程序。我正在使用Active Directory作为用户联邦来检索所有用户信息。

但是要在我的web应用程序中使用这些信息，我认为我必须将它们保存在“local-webapp”数据库中。

那么在用户被记录之后，我如何将他们保存在我的数据库中呢？

客户：

     Keycloak keycloak2 = KeycloakBuilder.builder()
                         .serverUrl("http://localhost:8080/auth/admin/realms/MYREALM/users")
                         .realm("MYREALMM")
                         .username("u.user")
                         .password("password")
                         .clientId("Test")
                         .clientSecret("cade3034-6ee1-4b18-8627-2df9a315cf3d")
                         .resteasyClient(new ResteasyClientBuilder().connectionPoolSize(20).build())
                         .build();

 RealmRepresentation realm2 = keycloak2.realm("MYREALMM").toRepresentation();

错误是：

2018-02-05 12:33:06.638 ERROR 16975 --- [nio-8080-exec-7] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Handler dispatch failed; nested exception is java.lang.Error: Unresolved compilation problem: 
    The method realm(String) is undefined for the type AccessTokenResponse
] with root cause

java.lang.Error: Unresolved compilation problem: 
    The method realm(String) is undefined for the type AccessTokenResponse

我哪里做错了？

@Autowired
private HttpServletRequest request;

public ResponseEntity listUsers() {
    KeycloakAuthenticationToken token = (KeycloakAuthenticationToken) request.getUserPrincipal();        
    KeycloakPrincipal principal=(KeycloakPrincipal)token.getPrincipal();
    KeycloakSecurityContext session = principal.getKeycloakSecurityContext();

    Keycloak keycloak = KeycloakBuilder.builder()
                                        .serverUrl("http://localhost:8080/auth")
                                        .realm("MYREALMM")
                                        .authorization(session.getToken().getAuthorization().toString())
                                        .resteasyClient(new ResteasyClientBuilder().connectionPoolSize(20).build())
                                        .build();

    RealmResource r = keycloak.realm("MYREALMM");
    List<org.keycloak.representations.idm.UserRepresentation> list = keycloak.realm("MYREALMM").users().list();
    return ResponseEntity.ok(list);

    @Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled=true)
@ComponentScan(basePackageClasses = KeycloakSecurityComponents.class)
@KeycloakConfiguration
public class SecurityConfig extends KeycloakWebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
         super.configure(http);

        http.httpBasic().disable();
        http
        .csrf().disable()
        .authorizeRequests()
            .antMatchers("/webjars/**").permitAll()
            .antMatchers("/resources/**").permitAll()
            .anyRequest().authenticated()
        .and()
        .logout()
            .logoutUrl("/logout")
            .logoutRequestMatcher(new AntPathRequestMatcher("/logout", "GET"))
            .permitAll()
            .logoutSuccessUrl("/")
            .invalidateHttpSession(true);
    }

      @Autowired
        public KeycloakClientRequestFactory keycloakClientRequestFactory;

        @Bean
        public KeycloakRestTemplate keycloakRestTemplate() {
            return new KeycloakRestTemplate(keycloakClientRequestFactory);
        }

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) {

        KeycloakAuthenticationProvider keycloakAuthenticationProvider = keycloakAuthenticationProvider();
        SimpleAuthorityMapper simpleAuthorityMapper = new SimpleAuthorityMapper();
        simpleAuthorityMapper.setPrefix("ROLE_");
        simpleAuthorityMapper.setConvertToUpperCase(true);
        keycloakAuthenticationProvider.setGrantedAuthoritiesMapper(simpleAuthorityMapper);
        auth.authenticationProvider(keycloakAuthenticationProvider);
    }

    @Bean
    public KeycloakSpringBootConfigResolver keycloakConfigResolver() {
        return new KeycloakSpringBootConfigResolver();
    }

    @Bean
    @Override
    protected SessionAuthenticationStrategy sessionAuthenticationStrategy() {
        return new RegisterSessionAuthenticationStrategy(new SessionRegistryImpl());
    }

    @Override
    public void configure(WebSecurity web) throws Exception {
        web
           .ignoring()
           .antMatchers("/resources/**", "/static/**", "/css/**", "/js/**", "/images/**", "/webjars/**");
    }

     @Bean
     @Scope(scopeName = WebApplicationContext.SCOPE_REQUEST, proxyMode = ScopedProxyMode.TARGET_CLASS)
     public AccessToken accessToken() {
         HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.currentRequestAttributes()).getRequest();
         return ((KeycloakSecurityContext) ((KeycloakAuthenticationToken) request.getUserPrincipal()).getCredentials()).getToken();
     }

}

#######################################
#             KEYCLOAK                #
#######################################

keycloak.auth-server-url=http://localhost:8181/auth
keycloak.realm=My Realm 
keycloak.ssl-required=external
keycloak.resource=AuthServer
keycloak.credentials.jwt.client-key-password=keystorePwd
keycloak.credentials.jwt.client-keystore-file=keystore.jks
keycloak.credentials.jwt.client-keystore-password=keystorePwd
keycloak.credentials.jwt.alias=AuthServer
keycloak.credentials.jwt.token-expiration=10
keycloak.credentials.jwt.client-keystore-type=JKS
keycloak.use-resource-role-mappings=true
keycloak.confidential-port=0
keycloak.principal-attribute=preferred_username

编辑6

这是启用日志记录后的日志表单密钥斗篷：

2018-02-12 08:31:00.274 3DEBUG 5802 --- [nio-8080-exec-1] o.k.adapters.PreAuthActionsHandler       : adminRequest http://localhost:8080/utente/prova4
2018-02-12 08:31:00.274 3DEBUG 5802 --- [nio-8080-exec-1] .k.a.t.AbstractAuthenticatedActionsValve : AuthenticatedActionsValve.invoke /utente/prova4
2018-02-12 08:31:00.274 3DEBUG 5802 --- [nio-8080-exec-1] o.k.a.AuthenticatedActionsHandler        : AuthenticatedActionsValve.invoke http://localhost:8080/utente/prova4
2018-02-12 08:31:00.274 3DEBUG 5802 --- [nio-8080-exec-1] o.k.a.AuthenticatedActionsHandler        : Policy enforcement is disabled.
2018-02-12 08:31:00.275 3DEBUG 5802 --- [nio-8080-exec-1] o.k.adapters.PreAuthActionsHandler       : adminRequest http://localhost:8080/utente/prova4
2018-02-12 08:31:00.275 3DEBUG 5802 --- [nio-8080-exec-1] o.k.a.AuthenticatedActionsHandler        : AuthenticatedActionsValve.invoke http://localhost:8080/utente/prova4
2018-02-12 08:31:00.275 3DEBUG 5802 --- [nio-8080-exec-1] o.k.a.AuthenticatedActionsHandler        : Policy enforcement is disabled.
2018-02-12 08:31:00.276 3DEBUG 5802 --- [nio-8080-exec-1] o.k.adapters.PreAuthActionsHandler       : adminRequest http://localhost:8080/utente/prova4
2018-02-12 08:31:00.276 3DEBUG 5802 --- [nio-8080-exec-1] o.k.a.AuthenticatedActionsHandler        : AuthenticatedActionsValve.invoke http://localhost:8080/utente/prova4
2018-02-12 08:31:00.276 3DEBUG 5802 --- [nio-8080-exec-1] o.k.a.AuthenticatedActionsHandler        : Policy enforcement is disabled.
2018-02-12 08:31:10.580 3DEBUG 5802 --- [nio-8080-exec-1] o.k.a.s.client.KeycloakRestTemplate      : Created GET request for "http://localhost:8181/auth/admin/realms/My%20Realm%20name/users"
2018-02-12 08:31:10.580 3DEBUG 5802 --- [nio-8080-exec-1] o.k.a.s.client.KeycloakRestTemplate      : Setting request Accept header to [application/json, application/*+json]
2018-02-12 08:31:10.592 3DEBUG 5802 --- [nio-8080-exec-1] o.k.a.s.client.KeycloakRestTemplate      : GET request for "http://localhost:8181/auth/admin/realms/My%20Realm%20name/users" resulted in 401 (Unauthorized); invoking error handler
2018-02-12 08:31:10.595 ERROR 5802 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.client.HttpClientErrorException: 401 Unauthorized] with root cause

org.springframework.web.client.HttpClientErrorException: 401 Unauthorized
    at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:85) ~[spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE]
    at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:707) ~[spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE]

Answer 1

为了访问整个用户列表，您必须验证登录的用户至少包含来自realm-management客户端的view-users角色，参见我前段时间写的这个答案。一旦用户拥有这个角色，她检索的JWT就会创建这个角色。

从您的评论中我可以推断，您似乎缺乏关于authorization头的一些依据。一旦用户登录，她就会从keycloak获得签名的JWT，因此领域中的每个客户端都可以信任它，而不需要询问keycloak。此JWT包含访问令牌，该令牌稍后在authorization头中为每个用户请求所需，前缀为barer关键字（请参阅https://auth0.com/blog/cookies-vs-tokens-definitive-guide/中的基于令牌的身份验证）。

因此，当用户向您的应用程序发出请求以查看用户列表时，其包含view-users角色的访问令牌已经进入请求头。Keycloak Spring Security适配器已经提供了一个KeyCloakRestTemplate类，它能够为当前用户执行对另一个服务的请求，而不必手动解析它，而是自己创建另一个请求来访问Keycloak用户endpoint并附加它（就像您使用KeyCloakBuilder所做的那样）：

SecurityConfig.java

@Configuration
@EnableWebSecurity
@ComponentScan(basePackageClasses = KeycloakSecurityComponents.class)
public class SecurityConfig extends KeycloakWebSecurityConfigurerAdapter {

    ...

    @Autowired
    public KeycloakClientRequestFactory keycloakClientRequestFactory;

    @Bean
    @Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE)
    public KeycloakRestTemplate keycloakRestTemplate() {
        return new KeycloakRestTemplate(keycloakClientRequestFactory);
    }

    ...
}

注意模板的作用域是prototype，因此Spring将为每个请求使用不同的实例。

然后，自动连接此模板并使用它来发出请求：

@Service
public class UserRetrievalService{

    @Autowired
    private KeycloakRestTemplate keycloakRestTemplate;

    public List<User> getUsers() {
        ResponseEntity<User[]> response = keycloakRestTemplate.getForEntity(keycloakUserListEndpoint, User[].class);
        return Arrays.asList(response.getBody());
    }

}

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