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/*
* Copyright 2019-2020 Zheng Jie
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package me.zhengjie.utils;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import me.zhengjie.exception.BadRequestException;
import me.zhengjie.utils.enums.DataScopeEnum;
import org.springframework.http.HttpStatus;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import java.util.List;
/**
* 获取当前登录的用户
* @author Zheng Jie
* @date 2019-01-17
*/
@Slf4j
public class SecurityUtils {
/**
* 获取当前登录的用户
* @return UserDetails
*/
public static UserDetails getCurrentUser() {
UserDetailsService userDetailsService = SpringContextHolder.getBean(UserDetailsService.class);
return userDetailsService.loadUserByUsername(getCurrentUsername());
}
/**
* 获取系统用户名称
*
* @return 系统用户名称
*/
public static String getCurrentUsername() {
final Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
if (authentication == null) {
throw new BadRequestException(HttpStatus.UNAUTHORIZED, "当前登录状态过期");
}
if (authentication.getPrincipal() instanceof UserDetails) {
UserDetails userDetails = (UserDetails) authentication.getPrincipal();
return userDetails.getUsername();
}
throw new BadRequestException(HttpStatus.UNAUTHORIZED, "找不到当前登录的信息");
}
/**
* 获取系统用户ID
* @return 系统用户ID
*/
public static Long getCurrentUserId() {
UserDetails userDetails = getCurrentUser();
// 将 Java 对象转换为 JSONObject 对象
JSONObject jsonObject = (JSONObject) JSON.toJSON(userDetails);
return jsonObject.getJSONObject("user").getLong("id");
}
/**
* 获取当前用户的数据权限
* @return /
*/
public static List<Long> getCurrentUserDataScope(){
UserDetails userDetails = getCurrentUser();
// 将 Java 对象转换为 JSONObject 对象
JSONObject jsonObject = (JSONObject) JSON.toJSON(userDetails);
JSONArray jsonArray = jsonObject.getJSONArray("dataScopes");
return JSON.parseArray(jsonArray.toJSONString(), Long.class);
}
/**
* 获取数据权限级别
* @return 级别
*/
public static String getDataScopeType() {
List<Long> dataScopes = getCurrentUserDataScope();
if(dataScopes.size() != 0){
return "";
}
return DataScopeEnum.ALL.getValue();
}
}