package net.mingsoft.config;

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

import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import net.mingsoft.basic.security.BaseAuthRealm;

import org.apache.shiro.mgt.SecurityManager;

@Configuration
public class ShiroConfiguration {
	@Value("${ms.manager.path}")
	private String managerPath;

	@Bean
	public ShiroFilterFactoryBean shirFilter(SecurityManager securityManager) {
		ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
		// 必须设置 SecurityManager
		shiroFilterFactoryBean.setSecurityManager(securityManager);
		// setLoginUrl 如果不设置值，默认会自动寻找Web工程根目录下的"/login.jsp"页面 或 "/login" 映射
		shiroFilterFactoryBean.setLoginUrl(managerPath+"/login.do");
		// 设置无权限时跳转的 url;
		shiroFilterFactoryBean.setUnauthorizedUrl(managerPath+"/404.do");

		// 设置拦截器
		Map<String, String> filterChainDefinitionMap = new LinkedHashMap<>();
		// 游客，开发权限
		filterChainDefinitionMap.put("/static/**", "anon");
		filterChainDefinitionMap.put("/html/**", "anon");
		// 开放登陆接口
		filterChainDefinitionMap.put(managerPath+"/login.do", "anon");
		filterChainDefinitionMap.put(managerPath+"/checkLogin.do", "anon");
		// 其余接口一律拦截
		// 主要这行代码必须放在所有权限设置的最后，不然会导致所有 url 都被拦截
		filterChainDefinitionMap.put(managerPath+"/**", "authc");

		shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
		return shiroFilterFactoryBean;
	}

	/**
	 * 注入 securityManager
	 */
	@Bean
	public SecurityManager securityManager() {
		DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
		// 设置realm.
		securityManager.setRealm(customRealm());
		return securityManager;
	}

	/**
	 * 自定义身份认证 realm;
	 * <p>
	 * 必须写这个类，并加上 @Bean 注解，目的是注入 CustomRealm， 否则会影响 CustomRealm类 中其他类的依赖注入
	 */
	@Bean
	public BaseAuthRealm customRealm() {
		return new BaseAuthRealm();
	}
}