package com.simon.springbootdrugs.config;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * 权限控制Shiro配置类
 *
 * @author Simon
 */
@Configuration
public class ShiroFilterConfiguration {

    /**
     * 创建过滤工厂Bean
     */
    @Bean
    public ShiroFilterFactoryBean shiroFilterFactoryBean() {
        //1.new一个工厂bean
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        //2.需要注入参数
        shiroFilterFactoryBean.setSecurityManager(securityManager());
        /**
         *
         * Shiro内置过滤器，实现权限相关的拦截器
         * anon:无需登录，可以访问
         * authc:必须登录才可以访问
         */
        //9.设置权限访问
        Map<String, String> filterMap = new LinkedHashMap<>();
        filterMap.put("/static/**", "anon"); //static目录下都可以访问
        filterMap.put("/login", "anon"); //无需登录，可以访问
        filterMap.put("/toLogin", "anon"); //无需登录，可以访问
        filterMap.put("/**", "authc"); //剩下的全部  必须登录才可以访问

        //8.判断是否有权限
        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterMap);
        //不登录自动转向的页面
        shiroFilterFactoryBean.setLoginUrl("/login");
        //登录后自动转向的页面
        shiroFilterFactoryBean.setSuccessUrl("/index");
        return shiroFilterFactoryBean;
    }

    /**
     * 3.权限管理
     */
    @Bean
    public DefaultWebSecurityManager securityManager() {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //4.用户登录权限认证，创建userRealm
        securityManager.setRealm(userRealm());
        return securityManager;
    }

    /**
     * 7.创建Realm ，认证用
     *
     * @return
     */
    @Bean
    public UserRealm userRealm() {
        UserRealm userRealm = new UserRealm();
        return userRealm;
    }

    /**
     * 10.thymeleaf整合Shiro
     */
    @Bean
    public ShiroDialect shiroDialect() {
        return new ShiroDialect();
    }
}