springboot前后端分离集成CAS单点登录(统一认证)
作者：编程2年半的程序员
单点登录是一种身份认证和授权技术,允许用户在多个应用系统中使用同一套用户名和密码进行登录,本文主要介绍了springboot前后端分离集成CAS单点登录,具有一定的参考价值,感兴趣的可以了解一下
最近公司接了一个项目，甲方需要集成到金智系统登录,他们的数据在那边，然后需要使用cas来完成，网上了解了一下 大概就是通过cas系统来拦截请求验票，重定向到指定url登录以后再调回来处理请求接口
大致流程如下
1. 在Maven项目中引入CAS（Central Authentication Service）客户端核心库。CAS是一个开源的企业级单点登录解决方案，用于实现Web应用程序的集中认证和授权。
<dependency>
<groupId>org.jasig.cas.client</groupId>
<artifactId>cas-client-core</artifactId>
<version>3.5.0</version>
</dependency>2.yml配置cas
3.cas配置类
@Configuration
@Slf4j
@ConditionalOnProperty(value = "cas.loginType", havingValue = "cas")
public class CasFilterConfig {
/**
* 需要走cas拦截的地址（/* 所有地址都拦截）
*/
@Value("${cas.urlPattern:/*}")
private String filterUrl;
/**
* 默认的cas地址，防止通过 配置信息获取不到
*/
@Value("${cas.server-url-prefix}")
private String casServerUrl;
/**
* 应用访问地址（这个地址需要在cas服务端进行配置）
*/
@Value("${cas.authentication-url}")
private String authenticationUrl;
/**
* 应用访问地址（这个地址需要在cas服务端进行配置）
*/
@Value("${cas.client-host-url}")
private String appServerUrl;
@Bean
public ServletListenerRegistrationBean servletListenerRegistrationBean() {
log.info(" \n cas 单点登录配置 \n appServerUrl = " + appServerUrl + "\n casServerUrl = " + casServerUrl);
log.info(" servletListenerRegistrationBean ");
ServletListenerRegistrationBean listenerRegistrationBean = new ServletListenerRegistrationBean();
listenerRegistrationBean.setListener(new SingleSignOutHttpSessionListener());
listenerRegistrationBean.setOrder(Ordered.HIGHEST_PRECEDENCE);
return listenerRegistrationBean;
}
/**
* 单点登录退出
*
* @return
*/
@Bean
public FilterRegistrationBean singleSignOutFilter() {
log.info(" servletListenerRegistrationBean ");
FilterRegistrationBean registrationBean = new FilterRegistrationBean();
registrationBean.setFilter(new SingleSignOutFilter());
registrationBean.addUrlPatterns(filterUrl);
registrationBean.addInitParameter("casServerUrlPrefix", casServerUrl);
registrationBean.setName("CAS Single Sign Out Filter");
registrationBean.setOrder(1);
return registrationBean;
}
/**
* 单点登录认证
*
* @return
*/
@Bean
public FilterRegistrationBean AuthenticationFilter() {
log.info(" AuthenticationFilter ");
FilterRegistrationBean registrationBean = new FilterRegistrationBean();
registrationBean.setFilter(new AuthenticationFilter());
registrationBean.addUrlPatterns(filterUrl);
registrationBean.setName("CAS Filter");
registrationBean.addInitParameter("casServerLoginUrl", casServerUrl);
registrationBean.addInitParameter("serverName", appServerUrl);
registrationBean.setOrder(1);
return registrationBean;
}
/**
* 单点登录校验
*
* @return
*/
@Bean
public FilterRegistrationBean Cas30ProxyReceivingTicketValidationFilter() {
log.info(" Cas30ProxyReceivingTicketValidationFilter ");
FilterRegistrationBean registrationBean = new FilterRegistrationBean();
registrationBean.setFilter(new Cas30ProxyReceivingTicketValidationFilter());
registrationBean.addUrlPatterns(filterUrl);
registrationBean.setName("CAS Validation Filter");
registrationBean.addInitParameter("casServerUrlPrefix", authenticationUrl);
registrationBean.addInitParameter("serverName", appServerUrl);
registrationBean.setOrder(1);
return registrationBean;
}
/**
* 单点登录请求包装
*
* @return
*/
@Bean
public FilterRegistrationBean httpServletRequestWrapperFilter() {
log.info(" httpServletRequestWrapperFilter ");
FilterRegistrationBean registrationBean = new FilterRegistrationBean();
registrationBean.setFilter(new HttpServletRequestWrapperFilter());
registrationBean.addUrlPatterns(filterUrl);
registrationBean.setName("CAS HttpServletRequest Wrapper Filter");
registrationBean.setOrder(1);
return registrationBean;
}
}4.对接cas统一认证后接受的用户信息对象
/**
* @Author:
* @Date:
* @Description: 使用cas对接封装的cas返回的用户信息的对象
*/
public class CasUtil {
private static final Logger LOGGER = LoggerFactory.getLogger(CasUtil.class);
/**
* cas client 默认的session key
*/
public final static String CAS = "_const_cas_assertion_";
/**
* 封装CasUserInfo
*
* @param request
* @return
*/
public static CasUserInfo getCasUserInfoFromCas(HttpServletRequest request) {
Object object = request.getSession().getAttribute(CAS);
if (null == object) {
return null;
}
Assertion assertion = (Assertion) object;
return buildCasUserInfoByCas(assertion);
}
/**
* 构建CasUserInfo
*
* @param assertion
* @return
*/
private static CasUserInfo buildCasUserInfoByCas(Assertion assertion) {
if (null == assertion) {
LOGGER.error(" Cas没有获取到用户 ");
return null;
}
CasUserInfo casUserInfo = new CasUserInfo();
String userName = assertion.getPrincipal().getName();
LOGGER.info(" cas对接登录用户= " + userName);
casUserInfo.setUserAccount(userName);
//获取属性值
Map<String, Object> attributes = assertion.getPrincipal().getAttributes();
Object name = attributes.get("cn");
casUserInfo.setUserName(name == null ? userName : name.toString());
casUserInfo.setAttributes(attributes);
return casUserInfo;
}5.用户信息实体
/**
* @Author:
* @Date:
* @Description: 返回的用户信息
*/
@Setter
@Getter
public class CasUserInfo {
/** 用户名 */
private String userName;
/** 用户 */
private String userAccount;
/** 用户信息 */
private Map<String, Object> attributes;
}6.验证统一认证登录后跳回来的处理
/**
* 统一认证成功后跳转
*
* @return
*/
@GetMapping(value = "/index")
public ResponseVo<String> index(HttpServletRequest request) {
CasUserInfo userInfo = CasUtil.getCasUserInfoFromCas(request);
log.info("userInfo = " + JSONObject.toJSON(userInfo));
}统一认证登录成功以后，回来再根据用户信息校验用户，生成对应token
7.退出
/**
* 统一退出接口
*
* @return
*/
@GetMapping(value = "/logout")
public RedirectView logout(HttpServletRequest request) {
// 清理缓存
// return "redirect:https://********/logout"; cas的退出
return new RedirectView("https://************/logout");
}
最后跳转回来的时候因为url里面带了;被拦截报错
The request was rejected because the URL contained a potentially malicious String ";"
最后在网上搜了一下相关错误
解决办法 在yml配置server加了以下配置
servlet:
session:
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