package cn.wisenergy.web.config;

import cn.wisenergy.web.shiro.filter.AuthRealm;
import cn.wisenergy.web.shiro.filter.JwtFilter;
import org.apache.shiro.mgt.DefaultSessionStorageEvaluator;
import org.apache.shiro.mgt.DefaultSubjectDAO;
import org.apache.shiro.mgt.SecurityManager;
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.mgt.DefaultWebSecurityManager;
import org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.DependsOn;

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

/**
 * shiro配置类
 *
 * @author 86187
 */
@Configuration
public class ShiroConfig {

    /**
     * 配置拦截器
     * <p>
     * 定义拦截URL权限，优先级从上到下
     * 1). anon  : 匿名访问，无需登录
     * 2). authc : 登录后才能访问
     * 3). logout: 登出
     * 4). frameperms : 自定义的过滤器
     * <p>
     * URL 匹配风格
     * 1). ?：匹配一个字符，如 /admin? 将匹配 /admin1，但不匹配 /admin 或 /admin/；
     * 2). *：匹配零个或多个字符串，如 /admin* 将匹配 /admin 或/admin123，但不匹配 /admin/1；
     * 3). **：匹配路径中的零个或多个路径，如 /admin/** 将匹配 /admin/a 或 /admin/a/b
     * <p>
     * 配置身份验证成功，失败的跳转路径
     */
    @Bean("shiroFilter")
    public ShiroFilterFactoryBean shiroFilter(SecurityManager securityManager) {
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        // 设置securityManager
        shiroFilterFactoryBean.setSecurityManager(securityManager);

        // 自定义的过滤器
        Map<String, Filter> filterMap = new HashMap<>();
        // map里面key值要为过滤器的名称，value为过滤器对象
        filterMap.put("oauth2", new JwtFilter());
        // 将自定义的过滤器加入到过滤器集合中
        shiroFilterFactoryBean.setFilters(filterMap);

        // 设置拦截器集合
        Map<String, String> filterChainDefinitionMap = new LinkedHashMap<String, String>();
        filterChainDefinitionMap.put("/authInformation/save", "anon");//存储设备IMEI号和手机SIM卡ID号
        filterChainDefinitionMap.put("/sys/login", "anon"); // 登录页面-身份认证
        filterChainDefinitionMap.put("/sys/registered", "anon"); // 注册页面
        filterChainDefinitionMap.put("/swagger-ui.html", "anon"); // swagger接口-匿名访问
        filterChainDefinitionMap.put("/swagger/**", "anon");
        filterChainDefinitionMap.put("/user/**", "anon");
        filterChainDefinitionMap.put("/ZX/**", "anon");  //资讯的访问地址
        filterChainDefinitionMap.put("/api/user/**", "anon");  //登录注册路径
        filterChainDefinitionMap.put("/webjars/springfox-swagger-ui/**", "anon");
        filterChainDefinitionMap.put("/swagger-resources/**", "anon");
        filterChainDefinitionMap.put("/v2/api-docs", "anon");
        filterChainDefinitionMap.put("/api/sms/verifyCode", "anon");
        filterChainDefinitionMap.put("/api/sms/**", "anon");
        filterChainDefinitionMap.put("/upload_flowChart/**", "anon");//图片地址
        filterChainDefinitionMap.put("/webSocket/**", "anon");//socket
        filterChainDefinitionMap.put("/message/**", "anon");//消息推送接口
        filterChainDefinitionMap.put("/**", "oauth2");  // 其他路径均需要身份认证，一般位于最下面，优先级最低

        // 设置拦截器
        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
        return shiroFilterFactoryBean;
    }

    /**
     * 配置Shiro生命周期处理器
     */
    @Bean("lifecycleBeanPostProcessor")
    public LifecycleBeanPostProcessor lifecycleBeanPostProcessor() {
        return new LifecycleBeanPostProcessor();
    }

    @Bean(name = "authRealm")
    @DependsOn("lifecycleBeanPostProcessor")
    public AuthRealm authRealm() {
        return new AuthRealm();
    }

    /**
     * securityManager 不用直接注入shiroDBRealm，可能会导致事务失效
     * 解决方法见 handleContextRefresh
     * http://www.debugrun.com/a/NKS9EJQ.html
     */
    @Bean("securityManager")
    public SecurityManager securityManager(AuthRealm authRealm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        securityManager.setRealm(authRealm);
        securityManager.setRememberMeManager(null);
        /*
         * 关闭shiro自带的session，详情见文档
         * http://shiro.apache.org/session-management.html#SessionManagement-StatelessApplications%28Sessionless%29
         */
        DefaultSubjectDAO subjectDAO = new DefaultSubjectDAO();
        DefaultSessionStorageEvaluator defaultSessionStorageEvaluator = new DefaultSessionStorageEvaluator();
        defaultSessionStorageEvaluator.setSessionStorageEnabled(false);
        subjectDAO.setSessionStorageEvaluator(defaultSessionStorageEvaluator);
        securityManager.setSubjectDAO(subjectDAO);
        return securityManager;
    }

    @Bean
    @DependsOn("lifecycleBeanPostProcessor")
    public static DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator() {
        DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator = new DefaultAdvisorAutoProxyCreator();
        defaultAdvisorAutoProxyCreator.setUsePrefix(true);
        // 强制使用cglib，防止重复代理和可能引起代理出错的问题
        defaultAdvisorAutoProxyCreator.setProxyTargetClass(true);
        return defaultAdvisorAutoProxyCreator;
    }

    @Bean
    public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(SecurityManager securityManager) {
        AuthorizationAttributeSourceAdvisor advisor = new AuthorizationAttributeSourceAdvisor();
        advisor.setSecurityManager(securityManager);
        return advisor;
    }

}