如何将Spring Security RemoteTokenService与Keycloak一起使用

Question

我设置了一个Keycloak服务器.配置领域和客户端等.我成功地编写了一个带有"org.keycloak:keycloak-spring-boot-starter"的Spring Boot服务并保护了我的RestController.奇迹般有效.

但是当我尝试使用Spring Security(没有keycloak特定的依赖项)时,我陷入困境.

这是我的傻瓜:

dependencies {
compile('org.springframework.boot:spring-boot-starter-security')
compile('org.springframework.security.oauth:spring-security-oauth2')

compile('org.springframework.boot:spring-boot-starter-web')
compileOnly('org.projectlombok:lombok')
testCompile('org.springframework.boot:spring-boot-starter-test')
testCompile('org.springframework.security:spring-security-test')

}

这是我的SecurityConfig:

@Configuration
@EnableResourceServer
public class ResourceServerConfiguration extends 
ResourceServerConfigurerAdapter {

@Override
public void configure(HttpSecurity http) throws Exception {
    http.authorizeRequests()
        .antMatchers("/person/**").hasRole("DEMO_SPRING_SECURITY")
        .anyRequest().authenticated()
        .and().formLogin().disable();
}

@Override
public void configure(ResourceServerSecurityConfigurer resources) throws Exception {

    resources.resourceId("demo-client");
    RemoteTokenServices tokenServices = new RemoteTokenServices();
    tokenServices.setCheckTokenEndpointUrl(
        "http://localhost:8280/auth/realms/demo-realm/protocol/openid-connect/token/introspect");
    tokenServices.setClientId("demo-client");
    tokenServices.setClientSecret("80e19056-7770-4a4a-a3c4-06d8ac8792ef");
    resources.tokenServices(tokenServices);
}
}

现在我尝试访问服务器:

1. 获取访问令牌(通过REST客户端)解码的JWT如下所示:

{
"jti": "78c00562-d80a-4f5a-ab08-61ed10cb575c",
"exp": 1509603570,
"nbf": 0,
"iat": 1509603270,
"iss": "http://localhost:8280/auth/realms/demo-realm",
"aud": "demo-client",
"sub": "6ee90ba4-2854-49c1-9776-9aa95b6ae598",
"typ": "Bearer",
"azp": "demo-client",
"auth_time": 0,
"session_state": "68ce12fb-3b3f-429d-9390-0662f0503bbb",
"acr": "1",
"client_session": "ec0113e1-022a-482a-a26b-e5701e5edec1",
"allowed-origins": [],
"realm_access": {
  "roles": [
    "demo_user_role",
    "uma_authorization"
  ]
},
"resource_access": {
  "account": {
    "roles": [
      "manage-account",
      "manage-account-links",
      "view-profile"
    ]
  }
},
"name": "Jim Panse",
"preferred_username": "demo-user",
"given_name": "Jim",
"family_name": "Panse",
"email": "user@dmoain.com"
}

但我得到一个AccessDeniedException.

2017-11-02 07:18:05.344 DEBUG 17637 --- [nio-8080-exec-1] o.s.s.w.a.i.FilterSecurityInterceptor    : Previously Authenticated:

org.springframework.security.oauth2.provider.OAuth2Authentication@1f3ee7e1:校长:demo-client; 证书:[保护]; 认证:真实; 详细信息:remoteAddress = 127.0.0.1,tokenType = BearertokenValue =; 未授予任何权限2017-11-02 07:18:05.348 DEBUG 17637 --- [nio-8080-exec-1] ossaccess.vote.AffirmativeBased:Voter:org.springframework.security.web.access.expression.WebExpressionVoter @ 14032696,返回:-1 2017-11-02 07:18:05.353 DEBUG 17637 --- [nio-8080-exec-1] osswaExceptionTranslationFilter:访问被拒绝(用户不是匿名的); 委托给AccessDeniedHandler

org.springframework.security.access.AccessDeniedException:访问被拒绝

我对RemoteTokenService进行了调试,发现Keycloak以完全相同的accessstoken响应.哪个好.但是DefaultAccessTokenConverter尝试authorities从不存在的字段中读取用户角色.并且OAuth2WebSecurityExpressionHandler评估用户doenst具有任何角色. - >访问被拒绝

所以我的问题:

什么是使Spring Security与Keycloak访问令牌一起工作的必要条件？

Answer 1

在这里提出这个问题后，我自己找到了一个解决方案。有时尝试表达问题会有所帮助。

解决办法是重写DefaultAccessTokenConverter，教他如何读取“realm_access”字段。它丑陋但有效：

@Override
public void configure(ResourceServerSecurityConfigurer resources) throws Exception {

    resources.resourceId("demo-client");
    RemoteTokenServices tokenServices = new RemoteTokenServices();
    tokenServices.setCheckTokenEndpointUrl(
        "http://localhost:8280/auth/realms/demo-realm/protocol/openid-connect/token/introspect");
    tokenServices.setClientId("demo-client");
    tokenServices.setClientSecret("80e19056-7770-4a4a-a3c4-06d8ac8792ef");
    tokenServices.setAccessTokenConverter(new KeycloakAccessTokenConverter());
    resources.tokenServices(tokenServices);

}
private class KeycloakAccessTokenConverter extends DefaultAccessTokenConverter {

    @Override
    public OAuth2Authentication extractAuthentication(Map<String, ?> map) {
        OAuth2Authentication oAuth2Authentication = super.extractAuthentication(map);
        Collection<GrantedAuthority> authorities = (Collection<GrantedAuthority>) oAuth2Authentication.getOAuth2Request().getAuthorities();
        if (map.containsKey("realm_access")) {
            Map<String, Object> realm_access = (Map<String, Object>) map.get("realm_access");
            if(realm_access.containsKey("roles")) {
                ((Collection<String>) realm_access.get("roles")).forEach(r -> authorities.add(new SimpleGrantedAuthority(r)));
            }
        }
        return new OAuth2Authentication(oAuth2Authentication.getOAuth2Request(),oAuth2Authentication.getUserAuthentication());
    }
}

Answer 2

通过keycloak管理控制台，您可以为客户“ demo-client” 创建具有用户名“ authorities”的User Realm Role类型的令牌映射器。然后，访问令牌在此属性中包含角色名称，并且不需要自定义DefaultAccessTokenConverter。