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 Adapter。
我们尝试了以下解决方案：
将“public”用于以下
keycloak.security-constraints[10].securityCollections[0].name=public
keycloak.security-constraints[10].securityCollections[0].patterns[0]=/static/*
在SecurityConfig.configure（）
中http.authorizeRequests().antMatchers("/static/**").permitAll()
了解如何使用策略实施器，但除了使用policy-enforcer-config之外，没有关于使用Spring Boot执行此操作的说明。我不知道在哪里指定，因为我们没有keycloak.json文件。
以上所有内容总是会产生：
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]
任何帮助将不胜感激。
谢谢。
答案 0 :(得分：4)
其他帖子提到调用web.ignoring（）...，但我覆盖了没有忽略方法的configure（HttpSecurity）方法。
我终于意识到我可以覆盖两种配置方法（HttpSecurity和WebSecurity）来实现这一目标。
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参数指定匿名访问，那会很好，但是这样做。
答案 1 :(得分：1)
可以通过在https://issues.jboss.org/browse/KEYCLOAK-6468
中添加以下代码来解决此问题@Override
public void configure(final WebSecurity web) throws Exception {
web.ignoring().antMatchers("/keycloak.json");
}
答案 2 :(得分：0)
我的应用程序中具有类似的所需配置，并且遇到了相同的异常。我可以通过重写Keycloak的一些类并在HTTP Facade的isAssignableFrom(Class)方法中添加getSecurityContext()检查来解决此问题：
/**
* 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，我重写在我的KeycloakWebSecurityConfigurerAdapter子类中返回特定过滤器的方法：
/**
* Override to return our fixed filter.
* @return An instance of our fixed {@link KeycloakAuthenticatedActionsFilter}.
*/
@Bean
@Override
protected KeycloakAuthenticatedActionsFilter keycloakAuthenticatedActionsFilter() {
return new FixedKeycloakAuthenticatedActionsFilter();
}
现在，我可以在不进行身份验证的情况下访问我的公共端点，而我的安全端点仍可以按预期工作。
这似乎是一个简单的检查...我不确定为什么它不包含在Keycloak Spring Security适配器随附的SimpleHttpFacade中。
答案 3 :(得分：0)
如果您使用的是keycloak-spring-boot适配器，则只需要避免为该安全性约束声明一个Role，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public，如您所见，它没有角色。 用户需要SECURE_ROLE才能访问/ secure / URL下的所有链接。