/**
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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.dsh.guns.config;
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import com.dsh.guns.core.support.HttpKit;
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import com.dsh.guns.modular.system.model.User;
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import com.dsh.guns.modular.system.util.CacheUtil;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpSession;
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import java.util.List;
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public class UserExt {
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private static final String NAMES_DELIMETER = ",";
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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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public static User getUser() {
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HttpServletRequest request = HttpKit.getRequest();
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HttpSession session = request.getSession();
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Object obj = session.getAttribute("user");
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if(null == obj){
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return null;
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}
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User user = (User) obj;
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return user;
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}
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public static Integer getLanguage(){
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HttpServletRequest request = HttpKit.getRequest();
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HttpSession session = request.getSession();
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Object obj = session.getAttribute("language");
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if(null == obj){
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return null;
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}
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return (Integer)obj;
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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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if(getUser() != null && permission != null && permission.length() > 0){
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User user = getUser();
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List<String> menuNodes = CacheUtil.menus.get(user.getAccount());
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return menuNodes.contains(permission);
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}
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return false;
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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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