/**
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* Copyright (c) 2015-2017, Chill Zhuang 庄骞 (smallchill@163.com).
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* <p>
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* <p>
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* http://www.apache.org/licenses/LICENSE-2.0
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* <p>
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.stylefeng.guns.core.beetl;
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import com.alibaba.fastjson.JSON;
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import com.stylefeng.guns.core.common.exception.BizExceptionEnum;
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import com.stylefeng.guns.core.exception.GunsException;
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import com.stylefeng.guns.core.shiro.ShiroUser;
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import com.stylefeng.guns.modular.system.warpper.LoginUser;
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import org.apache.commons.codec.binary.Base64;
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import org.apache.shiro.SecurityUtils;
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import org.apache.shiro.subject.Subject;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.stereotype.Component;
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import org.springframework.web.context.request.RequestContextHolder;
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import org.springframework.web.context.request.ServletRequestAttributes;
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import javax.annotation.Resource;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpSession;
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import java.io.UnsupportedEncodingException;
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import java.util.List;
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@Component
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public class ShiroExtUtil {
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private final String NAMES_DELIMETER = ",";
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@Resource
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private RedisTemplate<String, String> redisTemplate;
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/**
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* 验证当前用户是否属于以下任意一个角色。
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*
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* @param roleNames 角色列表
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* @return 属于:true,否则false
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*/
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public boolean hasAnyRoles(String roleNames) {
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boolean hasAnyRole = false;
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ShiroUser user = getUser();
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if (user != null && roleNames != null && roleNames.length() > 0) {
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List<Integer> roleList = user.getRoleList();
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for (String role : roleNames.split(NAMES_DELIMETER)) {
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if (roleList.contains(role.trim())) {
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hasAnyRole = true;
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break;
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}
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}
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}
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return hasAnyRole;
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}
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/**
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* 获取封装的 ShiroUser
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*
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* @return ShiroUser
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*/
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public ShiroUser getUser() {
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ServletRequestAttributes attrs = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
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if (attrs != null) {
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HttpServletRequest request = attrs.getRequest();
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HttpSession session = request.getSession();
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String onconParam = edu.yale.its.tp.cas.client.Util.getOnconParam(session);
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try {
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onconParam = new String(Base64.decodeBase64(onconParam), "UTF-8");
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} catch (UnsupportedEncodingException e) {
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throw new RuntimeException(e);
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}
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LoginUser loginUser = JSON.parseObject(onconParam, LoginUser.class);
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System.out.println("当前登录用户：" + JSON.toJSONString(loginUser));
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String shiroUser = redisTemplate.opsForValue().get(loginUser.getOnconUUID());
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System.out.println("当前登录用户缓存数据：" + shiroUser);
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return JSON.parseObject(shiroUser, ShiroUser.class);
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}
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throw new GunsException(BizExceptionEnum.TOKEN_ERROR);
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}
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/**
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* 与hasRole标签逻辑相反，当用户不属于该角色时验证通过。
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*
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* @param roleName 角色名
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* @return 不属于该角色：true，否则false
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*/
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public boolean lacksRole(String roleName) {
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return !hasRole(roleName);
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}
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/**
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* 验证当前用户是否属于该角色？,使用时与lacksRole 搭配使用
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*
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* @param roleName 角色名
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* @return 属于该角色：true，否则false
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*/
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public boolean hasRole(String roleName) {
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return getSubject() != null && roleName != null
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&& roleName.length() > 0 && getSubject().hasRole(roleName);
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}
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/**
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* 获取当前 Subject
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*
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* @return Subject
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*/
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protected Subject getSubject() {
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return SecurityUtils.getSubject();
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}
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/**
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* 验证当前用户是否属于以下所有角色。
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*
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* @param roleNames 角色列表
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* @return 属于:true,否则false
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*/
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public boolean hasAllRoles(String roleNames) {
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boolean hasAllRole = true;
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Subject subject = getSubject();
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if (subject != null && roleNames != null && roleNames.length() > 0) {
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for (String role : roleNames.split(NAMES_DELIMETER)) {
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if (!subject.hasRole(role.trim())) {
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hasAllRole = false;
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break;
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}
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}
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}
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return hasAllRole;
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}
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/**
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* 验证当前用户是否拥有指定权限,使用时与lacksPermission 搭配使用
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*
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* @param permission 权限名
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* @return 拥有权限：true，否则false
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*/
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public boolean hasPermission(String permission) {
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ShiroUser user = getUser();
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if (null == user) {
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return false;
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}
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if (user.isAdmin()) {
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return true;
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}
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return user.getMenuIds().contains(permission);
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}
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/**
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* 与hasPermission标签逻辑相反，当前用户没有制定权限时，验证通过。
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*
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* @param permission 权限名
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* @return 拥有权限：true，否则false
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*/
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public boolean lacksPermission(String permission) {
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return !hasPermission(permission);
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}
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/**
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* 已认证通过的用户。不包含已记住的用户，这是与user标签的区别所在。与notAuthenticated搭配使用
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*
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* @return 通过身份验证：true，否则false
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*/
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public boolean authenticated() {
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return getSubject() != null && getSubject().isAuthenticated();
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}
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/**
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* 未认证通过用户，与authenticated标签相对应。与guest标签的区别是，该标签包含已记住用户。。
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*
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* @return 没有通过身份验证：true，否则false
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*/
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public boolean notAuthenticated() {
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return !authenticated();
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}
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/**
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* 认证通过或已记住的用户。与guset搭配使用。
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*
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* @return 用户：true，否则 false
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*/
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public boolean isUser() {
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return getSubject() != null && getSubject().getPrincipal() != null;
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}
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/**
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* 验证当前用户是否为“访客”，即未认证（包含未记住）的用户。用user搭配使用
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*
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* @return 访客：true，否则false
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*/
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public boolean isGuest() {
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return !isUser();
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}
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/**
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* 输出当前用户信息，通常为登录帐号信息。
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*
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* @return 当前用户信息
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*/
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public String principal() {
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if (getSubject() != null) {
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Object principal = getSubject().getPrincipal();
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return principal.toString();
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}
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return "";
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}
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}
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