【发布时间】：2021-12-14 00:00:30
【问题描述】：
我们已经将 Keycloak 与 Spring Security (Spring Boot 2) 一起使用了一段时间，现在我们正在尝试添加一个自定义 API-Key 身份验证机制，在该机制中我们检查名为 api-key 的标头并将该值发送到远程服务进行验证，如果有效，则完全跳过 Keycloak 检查。这适用于所有请求和端点。
我有自己的 AuthenticationProvider 和 AbstractAuthenticationProcessingFilter，但现在 所有 对服务器的请求都会抛出 403，甚至是有效的 Keycloak 请求。奇怪的是，我的新代码甚至都没有被执行，因为没有日志记录或断点命中的迹象。我已经阅读了多重身份验证documentation 和reviewed several SO posts，但仍然无法正常工作。
这是我的自定义AuthenticationProvider：
public class ApiKeyAuthenticationProvider implements AuthenticationProvider {
@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
log.info("API-KEY: Provider.authenticate()");
ApiKeyAuthenticationToken auth = (ApiKeyAuthenticationToken) authentication;
String apiKey = auth.getCredentials().toString();
// Always returns TRUE at the moment to test bypassing Keycloak
boolean isApiKeyValid = RemoteApiKeyService.verify(apiKey);
if (isApiKeyValid) {
log.info("API-KEY: auth successful");
auth.setAuthenticated(true);
} else {
log.warn("API-KEY: auth failed");
throw new BadCredentialsException("Api-Key Authentication Failed");
}
return auth;
}
@Override
public boolean supports(Class<?> authentication) {
log.info("API-KEY: Provider.supports(): " + authentication.getSimpleName());
return authentication.isAssignableFrom(ApiKeyAuthenticationToken.class);
}
}
我的令牌：
public class ApiKeyAuthenticationToken extends AbstractAuthenticationToken {
private final String token;
public ApiKeyAuthenticationToken(String token) {
super(null);
this.token = token;
}
@Override
public Object getCredentials() {
return token;
}
@Override
public Object getPrincipal() {
return null;
}
}
这是过滤器：
public class ApiKeyFilter extends AbstractAuthenticationProcessingFilter {
public ApiKeyFilter() {
super("/*");
log.info("API-KEY filter.init()");
}
@Override
public Authentication attemptAuthentication(HttpServletRequest request,
HttpServletResponse response) throws AuthenticationException, IOException, ServletException {
log.info("API-KEY filter.attemptAuthentication()");
String apiKeyHeader = request.getHeader("api-key");
if (apiKeyHeader != null) {
return new ApiKeyAuthenticationToken(apiKeyHeader);
}
return null;
}
}
最后，我如何使用多个提供程序将所有内容与我的安全配置捆绑在一起：
@Slf4j
@Configuration
@EnableWebSecurity
@SuppressWarnings("SpringJavaInjectionPointsAutowiringInspection")
public class SecurityConf {
@Configuration
@Order(1) //Order is 1 -> First the special case
public static class ApiKeySecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception
{
http.csrf().disable().authorizeRequests()
.antMatchers("/**").authenticated();
}
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
// our custom authentication provider
auth.authenticationProvider(new ApiKeyAuthenticationProvider());
}
}
@Configuration
@Order(2) // processed after our API Key bean config
public static class KeycloakSecurityConfig extends KeycloakWebSecurityConfigurerAdapter {
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
KeycloakAuthenticationProvider provider = keycloakAuthenticationProvider();
provider.setGrantedAuthoritiesMapper(new SimpleAuthorityMapper());
auth.authenticationProvider(provider);
}
@Bean
@Override
protected SessionAuthenticationStrategy sessionAuthenticationStrategy() {
return new RegisterSessionAuthenticationStrategy(new SessionRegistryImpl());
}
@Override
protected void configure(HttpSecurity http) throws Exception {
super.configure(http);
http.csrf().disable().authorizeRequests();
http.headers().frameOptions().disable();
}
// necessary due to http://www.keycloak.org/docs/latest/securing_apps/index.html#avoid-double-filter-bean-registration
@Bean
public FilterRegistrationBean keycloakAuthenticationProcessingFilterRegistrationBean(KeycloakAuthenticationProcessingFilter filter) {
FilterRegistrationBean registrationBean = new FilterRegistrationBean(filter);
registrationBean.setEnabled(false);
return registrationBean;
}
// necessary due to http://www.keycloak.org/docs/latest/securing_apps/index.html#avoid-double-filter-bean-registration
@Bean
public FilterRegistrationBean keycloakPreAuthActionsFilterRegistrationBean(KeycloakPreAuthActionsFilter filter) {
FilterRegistrationBean registrationBean = new FilterRegistrationBean(filter);
registrationBean.setEnabled(false);
return registrationBean;
}
// necessary due to http://www.keycloak.org/docs/latest/securing_apps/index.html#avoid-double-filter-bean-registration
@Bean
public FilterRegistrationBean keycloakAuthenticatedActionsFilterBean(
KeycloakAuthenticatedActionsFilter filter) {
FilterRegistrationBean registrationBean = new FilterRegistrationBean(filter);
registrationBean.setEnabled(false);
return registrationBean;
}
// necessary due to http://www.keycloak.org/docs/latest/securing_apps/index.html#avoid-double-filter-bean-registration
@Bean
public FilterRegistrationBean keycloakSecurityContextRequestFilterBean(
KeycloakSecurityContextRequestFilter filter) {
FilterRegistrationBean registrationBean = new FilterRegistrationBean(filter);
registrationBean.setEnabled(false);
return registrationBean;
}
@Bean
@Scope(value = "singleton")
public KeycloakSpringBootConfigResolver keycloakConfigResolver() {
final KeycloakDeployment keycloakDeployment = KeycloakDeploymentBuilder.build(
KeycloakClient.default_client.toAdapterConfig()
);
return new KeycloakSpringBootConfigResolver() {
@Override
public KeycloakDeployment resolve(HttpFacade.Request request) {
return keycloakDeployment;
}
};
}
}
}
知道什么配置错误吗？我的任何代码都没有运行但破坏 Keycloak 的事实很有趣。
【问题讨论】：
标签： java spring spring-boot spring-security keycloak