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首页 > 解决方案 > 为什么我收到 Spring Security 和 Keycloak 的“访问被拒绝”错误？

java - 为什么我收到 Spring Security 和 Keycloak 的“访问被拒绝”错误？

问题描述

我用 Docker 设置了一个 Keycloak 服务器。配置领域和客户端等。我成功地为一些 RestControllers 编写了 Spring Boot 服务。工作等等。

但是当我尝试将 Spring Security 与 Keycloak Adapter 一起使用时，我被卡住了。

这是我的安全配置：

@KeycloakConfiguration
class SecurityConfig : KeycloakWebSecurityConfigurerAdapter() {

    @Autowired
    lateinit var keycloakClientRequestFactory: KeycloakClientRequestFactory

    @Bean
    fun keycloakConfigResolver(): KeycloakSpringBootConfigResolver = KeycloakSpringBootConfigResolver()

    @Bean
    override fun sessionAuthenticationStrategy(): SessionAuthenticationStrategy =
        NullAuthenticatedSessionStrategy()

    @Autowired
    @Throws(Exception::class)
    fun configureGlobal(auth: AuthenticationManagerBuilder) {
        val keycloakAuthProvider: KeycloakAuthenticationProvider = keycloakAuthenticationProvider()
        keycloakAuthProvider.setGrantedAuthoritiesMapper(SimpleAuthorityMapper())
        auth.authenticationProvider(keycloakAuthProvider)
    }

    @Throws(Exception::class)
    override fun configure(http: HttpSecurity) {
        super.configure(http)
        http.cors().disable()
            .csrf().disable()
            .exceptionHandling().and()
            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
            .sessionAuthenticationStrategy(sessionAuthenticationStrategy()).and()
            .formLogin().disable()
            .authorizeRequests()
            .antMatchers("/apps/manual-data-collection/**").hasRole("user")
            .anyRequest().permitAll()
    }

    /**
     * https://www.keycloak.org/docs/latest/securing_apps/index.html#avoid-double-bean-registration
     */
    @Bean
    @ConditionalOnMissingBean(HttpSessionManager::class)
    override fun httpSessionManager(): HttpSessionManager = HttpSessionManager()

}

现在我尝试访问服务器，但得到 403 Forbidden Error。以下是春季的日志：

2020-01-08 14:08:01.817 DEBUG 12396 --- [nio-8080-exec-5] o.s.s.w.u.matcher.AntPathRequestMatcher  : Checking match of request : '/apps/manual-data-collection/document-templates'; against '/apps/manual-data-collection/**'
2020-01-08 14:08:01.817 DEBUG 12396 --- [nio-8080-exec-5] o.s.s.w.a.i.FilterSecurityInterceptor    : Secure object: FilterInvocation: URL: /apps/manual-data-collection/document-templates; Attributes: [hasRole('ROLE_user')]
2020-01-08 14:08:01.817 DEBUG 12396 --- [nio-8080-exec-5] o.s.s.w.a.i.FilterSecurityInterceptor    : Previously Authenticated: org.keycloak.adapters.springsecurity.token.KeycloakAuthenticationToken@bc432bbc: Principal: willy; Credentials: [PROTECTED]; Authenticated: true; Details: org.keycloak.adapters.springsecurity.account.SimpleKeycloakAccount@42db7613; Not granted any authorities
2020-01-08 14:08:01.818 DEBUG 12396 --- [nio-8080-exec-5] o.s.s.access.vote.AffirmativeBased       : Voter: org.springframework.security.web.access.expression.WebExpressionVoter@3d0602a7, returned: -1
2020-01-08 14:08:01.818 DEBUG 12396 --- [nio-8080-exec-5] o.s.s.w.a.ExceptionTranslationFilter     : Access is denied (user is not anonymous); delegating to AccessDeniedHandler

org.springframework.security.access.AccessDeniedException: Access is denied

让我感到困惑的是，它说：Not granted any authorities. 如果我省略部分，一切正常。必要的角色（在本例中为“用户”）存储在领域中。JWT 令牌也提供这些。我不知道为什么它不起作用。

编辑：我应该提一下。Spring Boot Server 只能用作 Angular 应用程序的 REST 服务器，因此STATELESS.

标签： javaspringspring-bootspring-securitykeycloak

解决方案

好吧，我发现了我的错误。我在 application.yml 中激活了以下内容：

keycloak.use-resource-role-mappings=true

但它必须是false。Keycloak 文档如下：

use-resource-role-mappings - 如果设置为 true，适配器将在令牌内部查找用户的应用程序级角色映射。如果为 false，它将查看域级别的用户角色映射。这是可选的。默认值为假。

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