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Keycloak Spring Boot适配器和匿名资源

springspring-bootspring-securitykeycloak
4

我无法让Keycloak跳过对公共资源路径的授权检查。

我们正在使用Spring Boot Keycloak适配器。

我们尝试了以下解决方案：

  1. Did not specify path using security constraints in app properties (no mapping for "/static/*")

  2. Use "public" for the following

        keycloak.security-constraints[10].securityCollections[0].name=public
    keycloak.security-constraints[10].securityCollections[0].patterns[0]=/static/*

  3. In SecurityConfig.configure()

    http.authorizeRequests().antMatchers("/static/**").permitAll()

阅读有关使用策略执行器的文章，但除了使用policy-enforcer-config之外，没有关于在Spring Boot中如何执行此操作的说明。我不知道在哪里指定它，因为我们没有keycloak.json文件。

始终会得到上述所有内容：

java.lang.ClassCastException: org.springframework.security.authentication.AnonymousAuthenticationToken cannot be cast to org.keycloak.adapters.springsecurity.token.KeycloakAuthenticationToken
    at org.keycloak.adapters.springsecurity.facade.SimpleHttpFacade.getSecurityContext(SimpleHttpFacade.java:63) ~[keycloak-spring-security-adapter-3.4.2.Final.jar:3.4.2.Final]
    at org.keycloak.adapters.AuthenticatedActionsHandler.corsRequest(AuthenticatedActionsHandler.java:102) ~[keycloak-adapter-core-3.4.2.Final.jar:3.4.2.Final]
    at org.keycloak.adapters.AuthenticatedActionsHandler.handledRequest(AuthenticatedActionsHandler.java:54) ~[keycloak-adapter-core-3.4.2.Final.jar:3.4.2.Final]
    at org.keycloak.adapters.springsecurity.filter.KeycloakAuthenticatedActionsFilter.doFilter(KeycloakAuthenticatedActionsFilter.java:78) ~[keycloak-spring-security-adapter-3.4.2.Final.jar:3.4.2.Final]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at com.testing.SimpleCORSFilter.doFilter(SimpleCORSFilter.java:51) ~[classes/:na]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.keycloak.adapters.springsecurity.filter.KeycloakSecurityContextRequestFilter.doFilter(KeycloakSecurityContextRequestFilter.java:79) ~[keycloak-spring-security-adapter-3.4.2.Final.jar:3.4.2.Final]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.keycloak.adapters.springsecurity.filter.KeycloakAuthenticatedActionsFilter.doFilter(KeycloakAuthenticatedActionsFilter.java:82) ~[keycloak-spring-security-adapter-3.4.2.Final.jar:3.4.2.Final]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.keycloak.adapters.springsecurity.filter.KeycloakPreAuthActionsFilter.doFilter(KeycloakPreAuthActionsFilter.java:84) ~[keycloak-spring-security-adapter-3.4.2.Final.jar:3.4.2.Final]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) ~[tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94) [tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.keycloak.adapters.tomcat.AbstractAuthenticatedActionsValve.invoke(AbstractAuthenticatedActionsValve.java:67) [spring-boot-container-bundle-3.4.2.Final.jar:3.4.2.Final]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:616) [tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.keycloak.adapters.tomcat.AbstractKeycloakAuthenticatorValve.invoke(AbstractKeycloakAuthenticatorValve.java:181) [spring-boot-container-bundle-3.4.2.Final.jar:3.4.2.Final]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) [tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502) [tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132) [tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684) [tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1533) [tomcat-embed-core-8.0.43.jar:8.0.43]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1489) [tomcat-embed-core-8.0.43.jar:8.0.43]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_152]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_152]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.0.43.jar:8.0.43]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_152]

非常感谢您的帮助。

谢谢。

你是如何解决这个问题的？ - Teo
@Teo，我也遇到了同样的问题。他们在JIRA上关闭了这个问题，但我仍然收到了java.lang.ClassCastException: org.springframework.security.authentication.AnonymousAuthenticationToken cannot be cast to org.keycloak.adapters.springsecurity.token.KeycloakAuthenticationToken的错误信息。 - doublemc
@doublemc 那又怎样？我们能做些什么呢？ - Teo
@Teo，我还没有找到任何有效的解决方案 - 但我想你可能有自己的方法 ;) - doublemc
1
@doublemc 看起来我们不是孤单的 :P https://stackoverflow.com/questions/50228797/unauthorized-request-401-using-spring-if-i-open-a-modal-or-i-send-an-ajax-requ - Teo
4个回答
5

其他帖子提到了调用web.ignoring()方法，但我正在覆盖configure(HttpSecurity)方法，该方法没有ignoring方法。

我最终意识到，我可以同时覆盖configure方法（HttpSecurity和WebSecurity），以实现这一目的。

public void configure(WebSecurity web) throws Exception {
    web.ignoring().antMatchers("/static/*");
}

如果我们可以在应用程序属性文件中使用keycloak参数来指定匿名访问权限，那就太好了，但这并不起作用。

1
问题可以通过添加以下代码来解决，该代码已经提供在https://issues.jboss.org/browse/KEYCLOAK-6468中。
@Override
public void configure(final WebSecurity web) throws Exception {
   web.ignoring().antMatchers("/keycloak.json"); 
}
0

我在我的应用程序中有一个类似的期望配置，并遇到了相同的异常。通过覆盖一些Keycloak的类并在HTTP facade的getSecurityContext()方法中添加一个isAssignableFrom(Class)检查，我能够解决这个问题：

/**
 * Hack to fix issue accessing resources anonymously while Keycloak adapter is part of the security chain.
 */
public class FixedKeycloakAuthenticatedActionsFilter extends KeycloakAuthenticatedActionsFilter {

    private static final Logger log = LoggerFactory.getLogger(FixedKeycloakAuthenticatedActionsFilter.class);

    private ApplicationContext applicationContext;
    private AdapterDeploymentContext deploymentContext;

    FixedKeycloakAuthenticatedActionsFilter() {
        super();
    }

    /*
     * Must override this because deploymentContext is set to private on the super class
     */
    @Override
    protected void initFilterBean() throws ServletException {
        super.initFilterBean();

        deploymentContext = applicationContext.getBean(AdapterDeploymentContext.class);
    }

    /*
     * Must override this because applicationContext is set to private on the super class
     */
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        super.setApplicationContext(applicationContext);

        this.applicationContext = applicationContext;
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {

        // use our fixed facade class
        HttpFacade facade = new FixedSimpleHttpFacade((HttpServletRequest)request, (HttpServletResponse)response);
        AuthenticatedActionsHandler handler = new AuthenticatedActionsHandler(deploymentContext.resolveDeployment(facade), (OIDCHttpFacade)facade);
        boolean handled = handler.handledRequest();
        if (handled) {
            log.debug("Authenticated filter handled request: {}", ((HttpServletRequest) request).getRequestURI());
        } else {
            chain.doFilter(request, response);
        }
    }

    /**
     * Hack to add missing class check on {@link SimpleHttpFacade#getSecurityContext()}.
     */
    static class FixedSimpleHttpFacade extends SimpleHttpFacade {
        /**
         * Creates a new simple HTTP facade for the given request and response.
         *
         * @param request  the current <code>HttpServletRequest</code> (required)
         * @param response the current <code>HttpServletResponse</code> (required)
         */
        FixedSimpleHttpFacade(HttpServletRequest request, HttpServletResponse response) {
            super(request, response);
        }

        @Override
        public KeycloakSecurityContext getSecurityContext() {
            SecurityContext context = SecurityContextHolder.getContext();

            if (context != null && context.getAuthentication() != null &&
                    // this check is missing in the super class
                    KeycloakAuthenticationToken.class.isAssignableFrom(context.getAuthentication().getClass())
                ) {
                KeycloakAuthenticationToken authentication = (KeycloakAuthenticationToken) context.getAuthentication();
                return authentication.getAccount().getKeycloakSecurityContext();
            }

            return null;
        }
    }
}

然后我在我的KeycloakWebSecurityConfigurerAdapter子类中重写了返回该特定过滤器的方法：

/**
 * Override to return our fixed filter.
 * @return An instance of our fixed {@link KeycloakAuthenticatedActionsFilter}.
 */
@Bean
@Override
protected KeycloakAuthenticatedActionsFilter keycloakAuthenticatedActionsFilter() {
    return new FixedKeycloakAuthenticatedActionsFilter();
}

现在我能够使用没有身份验证的公共端点，并且我的安全端点仍然按预期工作。这似乎是一个简单的检查... 我不确定为什么Keycloak Spring Security适配器提供的SimpleHttpFacade中没有包含它。
0
如果您正在使用keycloak-spring-boot适配器，您只需要避免为该安全约束声明角色，例如：
    keycloak:
      realm: Demo
      auth-server-url: http://localhost:8080/auth
      ssl-required: none
      resource: demo-service
      credentials:
        secret: your-service-credentials
      bearer-only: true
      principal-attribute: preferred_username
      use-resource-role-mappings: true
      security-constraints:
        -
          authRoles:

          securityCollections:
            -
              name: public
              patterns:
                - /actuator/health
        -
          authRoles:
            - SECURE_ROLE
          securityCollections:
            -
              name: protected
              patterns:
                - /secure/*

在上面的YAML文件中，我将URL /actuator/health声明为公共的，正如你所见，它没有一个Role。用户需要一个SECURE_ROLE才能访问/secure/ URL下的所有链接。
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