springboot 整合shiro + cas 实现单点登录权

作者: 程序猿TT | 来源:发表于2019-07-18 20:49 被阅读243次

简介

本项目将单点登录和权限认证结合在一起，实现了用户登录与授权的基础框架，后续可以很好的在此框架上进行二次开发
在原理和配置上也有很多不清楚的地方，希望大家留言讨论~
后续将会进行spring cloud系列工程的搭建，并将shiro-cas尝试接入spring cloud中
spring cloud系列直达地址 spring cloud

源码地址

准备：cas服务器搭建

单点登录流程

客户端请求目标服务器

目标服务器重定向到cas服务器

cas服务器进行验证，通过则请求目标服务器，将ticket传给目标服务器

目标服务器根据ticket，请求cas服务器，获取用户登录信息

cas服务器返回验证消息给目标服务器

项目实现

1、导入依赖包

        <!--Apache Shiro -->
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>${shiro.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-cas</artifactId>
            <version>${shiro.version}</version>
        </dependency>

2、编辑配置文件

以下为shiro-cas相关部分

# shiro - cas 配置
shiro:
  # 在访问cas服务器登录之后，会返回一个ticket。由该地址接收
  casFilterUrlPattern: /shiro-cas
  # cas服务前缀
  casServerUrlPrefix: http://127.0.0.1:8181/cas
  # shiro服务前缀
  shiroServerUrlPrefix: http://127.0.0.1:${server.port}${server.servlet.context-path}
  # 登录地址
  loginUrl: ${shiro.casServerUrlPrefix}/login?service=${shiro.shiroServerUrlPrefix}${shiro.casFilterUrlPattern}
  # 登出地址
  logoutUrl: ${shiro.casServerUrlPrefix}/logout?service=${shiro.shiroServerUrlPrefix}${shiro.casFilterUrlPattern}

以下为全量配置

# Tomcat
server:
  tomcat:
    uri-encoding: UTF-8
    max-threads: 1000
    min-spare-threads: 30
  port: 40301
  connection-timeout: 5000ms
  servlet:
    context-path: /shiro
    session:
      cookie:
        http-only: true

spring:
  application:
    name: service-auth

# shiro - cas 配置
shiro:
  # 在访问cas服务器登录之后，会返回一个ticket。由该地址接收
  casFilterUrlPattern: /shiro-cas
  # cas服务前缀
  casServerUrlPrefix: http://127.0.0.1:8181/cas
  # shiro服务前缀
  shiroServerUrlPrefix: http://127.0.0.1:${server.port}${server.servlet.context-path}
  # 登录地址
  loginUrl: ${shiro.casServerUrlPrefix}/login?service=${shiro.shiroServerUrlPrefix}${shiro.casFilterUrlPattern}
  # 登出地址
  logoutUrl: ${shiro.casServerUrlPrefix}/logout?service=${shiro.shiroServerUrlPrefix}${shiro.casFilterUrlPattern}

3、自定义配置casFileter

import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.cas.CasFilter;
import org.apache.shiro.cas.CasToken;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMethod;

import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

/**
 * @author : xingsongtan@qq.com
 * @date : 14:17 2019/7/17
 */
public class MyCasFilter extends CasFilter {
    private static       Logger logger           = LoggerFactory.getLogger(MyCasFilter.class);
    private static final String TICKET_PARAMETER = "ticket";

    public MyCasFilter() {
    }

    @Override
    public AuthenticationToken createToken(ServletRequest request, ServletResponse response) throws Exception {
        // 获取请求的ticket
        HttpServletRequest httpRequest = (HttpServletRequest) request;
        String ticket = getRequestTicket(httpRequest);
        if (StringUtils.isEmpty(ticket)) {
            logger.debug("票证获取失败,票证为空！");
            return null;
        }
        return new CasToken(ticket);
    }

    /**
     * 拒绝除了option以外的所有请求
     **/
    @Override
    public boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) {
        if (((HttpServletRequest) request).getMethod().equals(RequestMethod.OPTIONS.name())) {
            return true;
        }
        return false;
    }

    @Override
    public boolean onAccessDenied(ServletRequest request, ServletResponse response) throws Exception {
        // 获取ticket，如果不存在，直接返回false
        String ticket = getRequestTicket((HttpServletRequest) request);
        if (StringUtils.isEmpty(ticket)) {
            return false;
        }
        return this.executeLogin(request, response);
    }

    /**
     * 获取请求的ticket
     */
    private String getRequestTicket(HttpServletRequest httpRequest) {
        // 从参数中获取ticket
        String ticket = httpRequest.getParameter(TICKET_PARAMETER);
        if (StringUtils.isEmpty(ticket)) {
            // 如果为空的话，则从header中获取参数
            ticket = httpRequest.getHeader(TICKET_PARAMETER);
        }
        return ticket;
    }

}

4、自定义casRealm

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.cas.CasRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.HashSet;
import java.util.Set;

/**
 * @author : xingsongtan@qq.com
 * @date : 12:00 2019/7/17
 */
public class MyCasRealm extends CasRealm {
    private static Logger log = LoggerFactory.getLogger(MyCasRealm.class);

    /**
     * 在调用subject.login()时，首先调用此接口
     */
    @Override
    public AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        // 调用父类的方法，然后授权用户
        AuthenticationInfo authc = super.doGetAuthenticationInfo(token);
        // 获得用户名
        String username = (String) authc.getPrincipals().getPrimaryPrincipal();
        // TODO:这里应该从数据库中获取用户信息

        return authc;
    }

    /**
     * 进行权限验证的时候，调用方法，将用户的权限信息写进SimpleAuthorizationInfo
     */
    @Override
    public AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        // 用户名称
        log.info("进入了权限认证");
        Object username = principals.getPrimaryPrincipal();
        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        // TODO: 这里应该从数据库获取用户权限
        Set<String> permission = new HashSet<>();
        permission.add("sys:dept:list");
        info.setStringPermissions(permission);
        return info;
    }
}

6、进行shiroconfig配置

import com.ttcode.shiro.security.MyCasFilter;
import com.ttcode.shiro.security.MyCasRealm;
import org.apache.shiro.authc.pam.AtLeastOneSuccessfulStrategy;
import org.apache.shiro.authc.pam.ModularRealmAuthenticator;
import org.apache.shiro.cache.MemoryConstrainedCacheManager;
import org.apache.shiro.cas.CasSubjectFactory;
import org.apache.shiro.spring.LifecycleBeanPostProcessor;
import org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.filter.authc.LogoutFilter;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.filter.DelegatingFilterProxy;

import javax.servlet.Filter;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

/**
 * Shiro的配置文件
 *
 * @author : xingsongtan@qq.com
 * @date : 20:51 2019/7/18
 */

@Configuration
public class ShiroCasConfiguration {
    /**
     * 添加shiro的filter
     */
    @Bean
    public FilterRegistrationBean filterRegistrationBean() {
        FilterRegistrationBean filterRegistration = new FilterRegistrationBean();
        filterRegistration.setFilter(new DelegatingFilterProxy("shiroFilter"));
        filterRegistration.addInitParameter("targetFilterLifecycle", "true");
        filterRegistration.setEnabled(true);
        filterRegistration.addUrlPatterns("/*");
        return filterRegistration;
    }

    /**
     * 保证了shiro内部lifecycle函数bean的执行
     */
    @Bean(name = "lifecycleBeanPostProcessor")
    public LifecycleBeanPostProcessor lifecycleBeanPostProcessor() {
        return new LifecycleBeanPostProcessor();
    }

    /**
     * 配置授权策略
     */
    @Bean(name = "authenticator")
    public ModularRealmAuthenticator modularRealmAuthenticator() {
        ModularRealmAuthenticator authenticator = new ModularRealmAuthenticator();
        authenticator.setAuthenticationStrategy(new AtLeastOneSuccessfulStrategy());
        return authenticator;
    }

    @Bean(name = "casRealm")
    public MyCasRealm casRealm(@Value("${shiro.casServerUrlPrefix}") String casServerUrlPrefix,
                               @Value("${shiro.shiroServerUrlPrefix}") String shiroServerUrlPrefix,
                               @Value("${shiro.casFilterUrlPattern}") String casFilterUrlPattern) {
        MyCasRealm casRealm = new MyCasRealm();
        // 认证通过后的默认角色
        casRealm.setDefaultRoles("ROLE_USER");
        // cas服务端地址前缀
        casRealm.setCasServerUrlPrefix(casServerUrlPrefix);
        // 应用服务地址，用来接收cas服务端票证
        casRealm.setCasService(shiroServerUrlPrefix + casFilterUrlPattern);
        return casRealm;
    }

    /**
     * 配置安全管理器
     **/
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager defaultWebSecurityManager(ModularRealmAuthenticator authenticator,
                                                               MyCasRealm casRealm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        // 设置授权策略,此步骤必须在设置realm的前面，不然会报错realm未配置
        securityManager.setAuthenticator(authenticator);
        securityManager.setSubjectFactory(new CasSubjectFactory());
        // 缓存管理器
        securityManager.setCacheManager(new MemoryConstrainedCacheManager());
        // 设置自定义验证策略
        securityManager.setRealm(casRealm);
        return securityManager;
    }


    /**
     * 配置登录过滤器
     */
    @Bean(name = "casFilter")
    public MyCasFilter casFilter(@Value("${shiro.loginUrl}") String loginUrl) {
        MyCasFilter casFilter = new MyCasFilter();
        casFilter.setName("casFilter");
        casFilter.setEnabled(true);
        casFilter.setFailureUrl(loginUrl);
        return casFilter;
    }

    /**
     * shiro 过滤器
     */
    @Bean(name = "shiroFilter")
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(DefaultWebSecurityManager securityManager,
                                                            MyCasFilter casFilter,
                                                            @Value("${shiro.logoutUrl}") String logoutUrl,
                                                            @Value("${shiro.loginUrl}") String loginUrl,
                                                            @Value("${shiro.casFilterUrlPattern}") String casFilterUrlPattern) {
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        // 设置安全管理器
        shiroFilterFactoryBean.setSecurityManager(securityManager);
        // 设置登录地址
        shiroFilterFactoryBean.setLoginUrl(loginUrl);
        // 设置登录成功地址
        shiroFilterFactoryBean.setSuccessUrl("/");
        // 配置拦截地址
        Map<String, Filter> filters = new HashMap<>();
        filters.put("casFilter", casFilter);
        LogoutFilter logoutFilter = new LogoutFilter();
        // 配置登出地址
        logoutFilter.setRedirectUrl(logoutUrl);
        filters.put("logout", logoutFilter);
        shiroFilterFactoryBean.setFilters(filters);
        // 设置访问用户页面需要授权的操作
        loadShiroFilterChain(shiroFilterFactoryBean, casFilterUrlPattern);
        // 将设置的权限设置到shiroFilterFactoryBean
        return shiroFilterFactoryBean;
    }

    /**
     * 1、当我们第一次访问客户端时，先去cas进行认证，成功后会返回一个ticket
     * 2、返回的ticket地址在casRealm已经进行了配置，shiroServerUrlPrefix + casFilterUrlPattern
     * 3、即地址为/shiro-cas，对该地址进行casFilter拦截
     */
    private void loadShiroFilterChain(ShiroFilterFactoryBean shiroFilterFactoryBean, String casFilterUrlPattern) {
        Map<String, String> filterChainDefinitionMap = new LinkedHashMap<>();

        filterChainDefinitionMap.put(casFilterUrlPattern, "casFilter");
        filterChainDefinitionMap.put("/logout", "logout");
        filterChainDefinitionMap.put("/**", "authc");
        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
    }

    /**
     * 开启Shiro的注解(如@RequiresPermissions)
     * 需借助SpringAOP扫描使用Shiro注解的类
     * 配置以下两个bean(DefaultAdvisorAutoProxyCreator和AuthorizationAttributeSourceAdvisor)即可实现此功能
     *
     * @return
     */
    @Bean
    public DefaultAdvisorAutoProxyCreator advisorAutoProxyCreator() {
        DefaultAdvisorAutoProxyCreator advisorAutoProxyCreator = new DefaultAdvisorAutoProxyCreator();
        advisorAutoProxyCreator.setProxyTargetClass(true);
        return advisorAutoProxyCreator;
    }

    /**
     * 开启aop注解支持
     *
     * @param securityManager
     * @return
     */
    @Bean
    public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(DefaultWebSecurityManager securityManager) {
        AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor = new AuthorizationAttributeSourceAdvisor();
        authorizationAttributeSourceAdvisor.setSecurityManager(securityManager);
        return authorizationAttributeSourceAdvisor;
    }

}

结尾：以上为核心配置

测试不用权限地址：http://127.0.0.1:40301/shiro/test
测试使用权限地址：http://127.0.0.1:40301/shiro/testPermission
测试权限不通过地址：http://127.0.0.1:40301/shiro/testPermissionFail
测试登出地址：http://127.0.0.1:40301/shiro/logout

springboot 整合shiro + cas 实现单点登录权

简介

源码地址

准备：cas服务器搭建

单点登录流程

项目实现

1、导入依赖包

2、编辑配置文件

3、自定义配置casFileter

4、自定义casRealm

6、进行shiroconfig配置

结尾：以上为核心配置

相关文章

网友评论

延伸阅读

深度阅读

栏目导航

热点阅读

javaWeb学习

权限管理

spring boot

Spring boot

springboot 整合shiro + cas 实现单点登录权

简介

源码地址

准备：cas服务器搭建

单点登录流程

项目实现

1、导入依赖包

2、 编辑配置文件

3、自定义配置casFileter

4、自定义casRealm

6、进行shiroconfig配置

结尾：以上为核心配置

相关文章

网友评论

延伸阅读

深度阅读

栏目导航

热点阅读

javaWeb学习

权限管理

spring boot

Spring boot

2、编辑配置文件