package com.whyc.service;
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import com.baomidou.mybatisplus.core.conditions.Wrapper;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.baomidou.mybatisplus.core.toolkit.StringUtils;
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import com.baomidou.mybatisplus.core.toolkit.Wrappers;
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import com.github.pagehelper.util.StringUtil;
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import com.whyc.dto.Response;
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import com.whyc.mapper.TableMapper;
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import com.whyc.mapper.UserInfMapper;
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import com.whyc.pojo.UserInf;
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import com.whyc.util.AESUtil;
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import com.whyc.util.RSAUtil;
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import org.apache.catalina.User;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import javax.annotation.Resource;
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import java.io.UnsupportedEncodingException;
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import java.nio.charset.Charset;
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import java.util.Arrays;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.regex.Pattern;
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@Service
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public class PasswordResetService {
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@Resource
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private UserInfMapper userInfMapper;
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@Resource
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private TableMapper tableMapper;
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/*public Response<String> preCheck(String name) {
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Response<String> response = new Response<>();
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QueryWrapper<UserInf> queryWrapper = Wrappers.query();
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queryWrapper.select("uSnId as SNId").eq("uName",name).last(" limit 1");
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UserInf userInf = userInfMapper.selectOne(queryWrapper);
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//解析密码
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String password = parsePassword(userInf.getSNId());
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response.setData(password);
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response.setMsg(encryptType);
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return response;
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}*/
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@Transactional
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public void bakUserInfo(){
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QueryWrapper<UserInf> queryWrapper = Wrappers.query();
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queryWrapper.select("uId as id","uSnId as SNId","upassword as password","uName as name");
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List<UserInf> userInfList = userInfMapper.selectList(queryWrapper);
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tableMapper.createUserBak();
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tableMapper.insertRecordToUserBak(userInfList);
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}
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@Transactional
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public void passwordReset(){
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//uSnId 有两种情况,明文/AES加密/RSA
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QueryWrapper<UserInf> queryWrapper = Wrappers.query();
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queryWrapper.select("uId as id","uSnId as SNId");
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List<UserInf> userInfList = userInfMapper.selectList(queryWrapper);
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userInfList.stream().forEach(userInf->{
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/*if(userInf.getId() == 0){
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return;
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}*/
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//明文,需要判断获取
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String password = parsePassword(userInf.getSNId());
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password = password.trim();
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//将明文RSA加密回写到uSnId和upassword
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String passwordRSA = RSAUtil.encrypt(password, RSAUtil.getPublicKey());
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userInf.setSNId(passwordRSA);
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userInf.setPassword(passwordRSA);
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//userInfMapper.updateById(userInf);
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});
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userInfMapper.updateBatch(userInfList);
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}
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private String parsePassword(String passwordData){
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//明文,需要判断获取
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String password;
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password = AESUtil.desEncrypt(passwordData);
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if(StringUtil.isEmpty(password) || !verifyPassword(password.trim())){
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password = RSAUtil.decrypt(passwordData, RSAUtil.getPrivateKey());
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if(StringUtil.isEmpty(password) || !verifyPassword(password.trim())){
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password = passwordData;
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}
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}
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return password.trim();
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}
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private boolean verifyPassword(String password) {
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String pattern = "[0-9a-zA-Z!@#$%^&*()-_=+[{]}\\|;:'\",<.>]";
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char[] chars = password.toCharArray();
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for (int i = 0; i < chars.length; i++) {
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char char1 = chars[i];
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boolean matches = Pattern.matches(pattern, String.valueOf(char1));
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if(!matches){
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return false;
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}
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}
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return true;
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}
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}
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