【问题标题】:SpringBoot + Keycloak adapter setup failedSpringBoot + Keycloak 适配器设置失败
【发布时间】:2020-02-10 12:57:03
【问题描述】:

我尝试使用 Keycloak 适配器保护 SpringBoot 后端。

  • SprinBoot 2.1.9
  • Keycloak 6.0.1

我只是在为大量错误和缺少文档而摸不着头脑。目前,我尝试让 keycloak 适配器正确响应 Cors Header 以处理 401 WWW-authenticate 错误。

调查发现org.keycloak.adapters.AuthenticatedActionsHandler类中securityContext为null,导致响应中没有设置header。

protected boolean corsRequest()  {
    if (!deployment.isCors()) return false;
    KeycloakSecurityContext securityContext = facade.getSecurityContext(); // This return null
    String origin = facade.getRequest().getHeader(CorsHeaders.ORIGIN);
    String exposeHeaders = deployment.getCorsExposedHeaders();

    if (deployment.getPolicyEnforcer() != null) {
        if (exposeHeaders != null) {
            exposeHeaders += ",";
        } else {
            exposeHeaders = "";
        }

        exposeHeaders += "WWW-Authenticate";
    }

    String requestOrigin = UriUtils.getOrigin(facade.getRequest().getURI());
    log.debugv("Origin: {0} uri: {1}", origin, facade.getRequest().getURI());
    if (securityContext != null && origin != null && !origin.equals(requestOrigin)) {

按照代码,我发现:

public class OIDCCatalinaHttpFacade extends CatalinaHttpFacade implements OIDCHttpFacade{

public OIDCCatalinaHttpFacade(org.apache.catalina.connector.Request request, HttpServletResponse response) {
    super(response, request);
}

@Override
public KeycloakSecurityContext getSecurityContext() {
    return (KeycloakSecurityContext)request.getAttribute(KeycloakSecurityContext.class.getName());
}

}

getSecurityContext 返回 null。

那么我缺少什么让它工作?

这是我的springboot application.propertie

server.port = 8081
spring.datasource.url=jdbc:h2:mem:testdb
spring.datasource.username=sa
spring.datasource.password=
spring.datasource.driver-class-name=org.h2.Driver
spring.jpa.hibernate.ddl-auto=create-drop
spring.h2.console.enabled=true
spring.main.allow-bean-definition-overriding=true
logging.level.org.springframework.security=DEBUG
logging.level.org.keycloak=TRACE

keycloak.realm = spring
keycloak.bearer-only = true
keycloak.auth-server-url=http://localhost:8080/auth
keycloak.ssl-required = none
keycloak.resource = spring-boot-elide
keycloak.credentials.secret = *********************
keycloak.confidential-port = 0
keycloak.enabled = true
keycloak.cors = true

【问题讨论】:

    标签: spring-boot cors keycloak


    【解决方案1】:

    您可以将 keycloak 适配器与 keycloak spring starter 和 spring security 一起使用。并使用 WebSecurityConfigurerAdapter Config 来处理覆盖配置方法中的 CORS。

    请参阅此文档:https://www.keycloak.org/docs/6.0/securing_apps/index.html#_spring_boot_adapter

    【讨论】:

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