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+package com.backendsys.modules.app.user.service.impl;
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+
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+import cn.hutool.core.convert.Convert;
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+import cn.hutool.core.date.DateUnit;
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+import cn.hutool.core.date.DateUtil;
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+import cn.hutool.core.util.RandomUtil;
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+import cn.hutool.core.util.StrUtil;
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+import cn.hutool.json.JSONObject;
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+import cn.hutool.json.JSONUtil;
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+import com.backendsys.exception.CustException;
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+import com.backendsys.modules.app.user.dao.AppUserDao;
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+import com.backendsys.modules.app.user.entity.AppAuth;
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+import com.backendsys.modules.app.user.entity.AppUser;
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+import com.backendsys.modules.app.user.service.AppAuthService;
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+import com.backendsys.modules.app.user.utils.AuthWechat.WechatUtil;
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+import com.backendsys.modules.common.config.redis.utils.RedisUtil;
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+import com.backendsys.modules.common.config.security.entity.SecurityAppUserInfo;
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+import com.backendsys.modules.common.config.security.utils.*;
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+import com.backendsys.modules.system.entity.TokenCatch;
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+import com.backendsys.modules.system.service.SysCommonService;
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+import com.backendsys.utils.response.ResultEnum;
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+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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+import com.google.code.kaptcha.Producer;
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+import jakarta.servlet.ServletOutputStream;
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+import jakarta.servlet.http.HttpServletResponse;
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+import org.springframework.beans.factory.annotation.Autowired;
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+import org.springframework.beans.factory.annotation.Value;
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+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
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+import org.springframework.stereotype.Service;
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+
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+import javax.imageio.ImageIO;
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+import java.awt.image.BufferedImage;
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+import java.io.ByteArrayOutputStream;
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+import java.io.IOException;
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+import java.util.Date;
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+import java.util.Map;
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+import java.util.TimeZone;
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+import java.util.UUID;
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+import java.util.concurrent.TimeUnit;
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+
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+@Service
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+public class AppAuthServiceImpl implements AppAuthService {
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+
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+ @Autowired
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+ private JwtUtil jwtUtil;
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+ @Autowired
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+ private TokenUtil tokenUtil;
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+ @Autowired
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+ private RedisUtil redisUtil;
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+ @Autowired
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+ private WechatUtil wechatUtil;
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+ @Autowired
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+ private CaptchaUtil captchaUtil;
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+ @Autowired
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+ private LockStatusUtil lockStatusUtil;
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+ @Autowired
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+ private HttpRequestUtil httpRequestUtil;
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+
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+ @Autowired
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+ private AppUserDao appUserDao;
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+ @Autowired
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+ private SysCommonService sysCommonService;
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+
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+ @Value("${spring.application.name}")
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+ private String APPLICATION_NAME;
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+ @Value("${CAPTCHA_DURATION}")
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+ private Integer CAPTCHA_DURATION;
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+ @Value("${REDIS_LOGIN_TOKEN_PREFIX}")
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+ private String REDIS_LOGIN_TOKEN_PREFIX;
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+
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+ @Autowired
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+ private Producer captchaProducer;
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+
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+ @Override
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+ public void renderCaptcha(HttpServletResponse response) throws IOException {
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+ try {
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+
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+ byte[] captchaChallengeAsJpeg;
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+ ByteArrayOutputStream jpegOutputStream = new ByteArrayOutputStream();
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+
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+ String createText = captchaProducer.createText();
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+ // 获得当前 (UA + IP) 生成的 Key
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+ String captchaRedisKey = httpRequestUtil.getKaptchaKey("APP");
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+ // 保存 验证码字符串 到 redis 中
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+ redisUtil.setCacheObject(captchaRedisKey, createText, this.CAPTCHA_DURATION, TimeUnit.MILLISECONDS);
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+ // 返回 BufferedImage 对象并转为 byte 写入到 byte 数组中
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+ BufferedImage challenge = captchaProducer.createImage(createText);
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+ ImageIO.write(challenge, "jpg", jpegOutputStream);
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+
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+ // 定义response输出类型为image/jpeg类型,使用response输出流输出图片的byte数组
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+ captchaChallengeAsJpeg = jpegOutputStream.toByteArray();
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+ response.setHeader("Cache-Control", "no-store");
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+ response.setHeader("Pragma", "no-cache");
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+ response.setDateHeader("Expires", 0);
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+ response.setContentType("image/jpeg");
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+
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+ ServletOutputStream responseOutputStream = response.getOutputStream();
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+ responseOutputStream.write(captchaChallengeAsJpeg);
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+ responseOutputStream.flush();
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+ responseOutputStream.close();
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+
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+ } catch (IOException e) {
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+ response.sendError(HttpServletResponse.SC_NOT_FOUND);
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+ }
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+ }
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+
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+
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+ // [方法] 登录失败 (errMsg: 错误提示文本, phone: 手机号码, intercept: 是否拦截)
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+ public void loginFail(String errMsg, String phone, Boolean isIntercept) {
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+ // 验证码是否必填
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+ Boolean currentCaptchaRequired = captchaUtil.isCaptchaRequired(APPLICATION_NAME + "-app-login-required-captcha-" + phone, 3);
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+ System.out.println("(loginFailByUsername) currentCaptchaRequired = " + currentCaptchaRequired);
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+
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+ // 删除图形验证码
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+ redisUtil.delete(httpRequestUtil.getKaptchaKey("APP"));
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+ // 添加登录错误的冻结标记
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+ if (isIntercept) lockStatusUtil.setLockStatus(APPLICATION_NAME + "-app-login-error", phone);
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+
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+ if (currentCaptchaRequired) {
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+ throw new CustException(errMsg, ResultEnum.INVALID_CREDENTIALS.getCode(), Map.of("is_captcha_required", true));
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+ } else {
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+ throw new CustException(errMsg, ResultEnum.INVALID_CREDENTIALS.getCode());
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+ }
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+ }
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+
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+ // [方法] 登录成功
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+ public AppUser loginSuccess(AppUser appUser) {
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+
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+ // 删除图形验证码缓存 (如果有的话)
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+ redisUtil.delete(httpRequestUtil.getKaptchaKey("APP"));
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+
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+ // 删除旧的登录缓存
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+ tokenUtil.deleteRedisLoginToken(appUser.getLast_login_uuid());
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+
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+ // 判断用户是否启用
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+ Integer status = appUser.getStatus();
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+ if (status != null && status.equals(-1)) throw new CustException("该用户已被禁用,请与客服联系");
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+
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+ // 判断用户是否已删除
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+ Integer del_flag = appUser.getDel_flag();
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+ if (del_flag != null && del_flag.equals(1)) throw new CustException("当前用户不可用,请与客服联系");
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+
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+ // 设置 最后一次的登录信息 (uuid, ip, 登录时间)
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+ String uuid = Convert.toStr(UUID.randomUUID());
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+ appUser.setUser_id(appUser.getId());
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+ appUser.setLast_login_uuid(uuid);
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+ appUser.setLast_login_ip(httpRequestUtil.getIpAddr());
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+
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+ // 最后登录时间 (本地时间)
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+ String localTimeStr = DateUtil.format(new Date(), "yyyy-MM-dd HH:mm:ss");
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+ appUser.setLast_login_time(localTimeStr);
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+
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+// // UTC 时间
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+// String utcTimeStr = DateUtil.date().setTimeZone(TimeZone.getTimeZone("UTC"))
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+// .toString("yyyy-MM-dd HH:mm:ss");
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+// appUser.setLast_login_time(utcTimeStr);
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+
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+ // [db] 更新前台用户信息
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+ appUserDao.updateById(appUser);
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+
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+
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+ // [系统配置] 微信用户默认登录过期时间(小时)
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+ Integer APP_USER_LOGIN_DURATION_DEFAULT = Convert.toInt(sysCommonService.getCommonByTag("APP_USER_LOGIN_DURATION_DEFAULT"));
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+ // 将小时转换为毫秒
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+ Long DEFAULT_MILLISECONDS = APP_USER_LOGIN_DURATION_DEFAULT * DateUnit.HOUR.getMillis();
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+ Integer token_duration_hours = Convert.toInt(DEFAULT_MILLISECONDS / 3600000L);
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+
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+ // Token 记录的登录时间,是本地时间
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+ Date token_expiration = new Date((new Date()).getTime() + DEFAULT_MILLISECONDS);
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+ appUser.setToken_expiration(DateUtil.format(token_expiration, "yyyy-MM-dd HH:mm:ss"));
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+ appUser.setRole("APP_USER");
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+
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+ // 生成 Token
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+ SecurityAppUserInfo securityUserInfo = JSONUtil.toBean(JSONUtil.parseObj(appUser), SecurityAppUserInfo.class);
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+ String token = jwtUtil.createAppJwtToken(securityUserInfo);
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+ String token_redis_key = REDIS_LOGIN_TOKEN_PREFIX + uuid;
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+ appUser.setToken(token);
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+
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+ // [Redis] 将 Token 存入缓存
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+ TokenCatch tokenCatch = new TokenCatch(token, null);
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+ redisUtil.setCacheObject(token_redis_key, JSONUtil.toJsonStr(tokenCatch), token_duration_hours, TimeUnit.HOURS);
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+
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+ return appUser;
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+ }
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+
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+ private void setLoginRequired(String key) {
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+ Object captchaValue = redisUtil.getCacheObject(APPLICATION_NAME + "-app-login-required-captcha-" + key);
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+ Integer currentErrCount = (captchaValue == null) ? 1 : (Convert.toInt(captchaValue) + 1);
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+ redisUtil.setCacheObject(APPLICATION_NAME + "-app-login-required-captcha-" + key, currentErrCount, 1, TimeUnit.MINUTES);
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+ System.out.println("currentErrCount: " + currentErrCount);
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+ }
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+ private void cleanLoginRequired(String key) {
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+ redisUtil.delete(APPLICATION_NAME + "-app-login-required-captcha-" + key);
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+ }
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+
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+
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+
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+ /**
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+ * 前台用户登录 (手机账号)
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+ */
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+ @Override
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+ public AppUser loginWithPhone(AppAuth appAuth) {
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+
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+ String phone = appAuth.getPhone();
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+ String password = appAuth.getPassword();
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+ String captcha = appAuth.getCaptcha();
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+
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+ // 判断是否处于登录错误的冻结状态 (2分钟内错误5次,则出现冻结提示)
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+ lockStatusUtil.checkLockStatus(APPLICATION_NAME + "-app-login-error", phone);
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+
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+ // -- 判断是否需要输入验证码 ----------------------------------------------------
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+ // - 当输错 3 次密码时,需要输入验证码
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+ // - 当输错后 1 分钟后重置
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+ Boolean isCaptchaRequired = captchaUtil.isCaptchaRequired(APPLICATION_NAME + "-app-login-required-captcha-" + phone, 3);
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+ if (isCaptchaRequired) {
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+ Boolean isCaptchaEmpty = StrUtil.isEmpty(captcha);
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+ Boolean isCpatchaValid = (captchaUtil.isCaptchaValid(captcha, httpRequestUtil.getKaptchaKey("APP")));
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+ if (isCaptchaEmpty) { loginFail("验证码不能为空", phone, false); return null; }
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+ if (!isCpatchaValid) { loginFail("验证码错误", phone, false); return null; }
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+ }
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+ // --------------------------------------------------------------------------
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+
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+ // [Method] 判断 用户 是否存在 && 密码是否正确
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+ AppUser appUser = appUserDao.selectOne(new LambdaQueryWrapper<AppUser>().eq(AppUser::getPhone, phone));
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+ if (appUser == null) {
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+ // 输入错误时,计数器叠加,并且设置重置时间 (会一直叠加,直到重置 或 登录成功)
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+ setLoginRequired(phone);
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+ // [登录失败] 用户不存在
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+ loginFail("手机号码或密码错误", phone, true);
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+ return null;
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+ } else {
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+ BCryptPasswordEncoder encoder = new BCryptPasswordEncoder();
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+ if (!encoder.matches(password, appUser.getPassword())) {
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+ // 输入错误时,计数器叠加,并且设置重置时间 (会一直叠加,直到重置 或 登录成功)
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+ setLoginRequired(phone);
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+ // [登录失败] 密码不正确
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+ loginFail("手机号码或密码错误", phone, true);
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+ }
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+ // [登录成功]
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+ cleanLoginRequired(phone);
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+ return loginSuccess(appUser);
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+ }
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+
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+ }
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+
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+ /**
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+ * 前台用户登录 (微信小程序用户)
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+ */
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+ @Override
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+ public AppUser loginWithWechatMiniprogram(AppAuth appAuth) {
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+
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+ String code = appAuth.getCode();
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+ JSONObject response = wechatUtil.getCode2Session(code);
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+ // [失败] 返回值:{"errcode":40164,"errmsg":"invalid ip 116.31.165.86 ipv6 ::ffff:116.31.165.86, not in whitelist, rid: 67d15951-5b3f2778-79d6f047"}
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+ // [成功] 返回值:{"session_key":"uQAcry2PC1Lx/Krp+6rr0g==","openid":"oSB9r7T7kN1bC7PabJ7RmTUiaJmo"}
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+
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+ // - errcode: 错误码,请求失败时返回
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+ if (!response.containsKey("errcode")) {
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+
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+ String openid = response.getStr("openid");
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+ String session_key = response.getStr("session_key");
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+
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+ String uuid = Convert.toStr(UUID.randomUUID());
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+ String last_login_ip = httpRequestUtil.getIpAddr();
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+ String last_login_time = DateUtil.format(new Date(), "yyyy-MM-dd HH:mm:ss");
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+
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+ // [Get] 判断用户是否存在 (openid)
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+ AppUser appUser = appUserDao.selectOne(new LambdaQueryWrapper<AppUser>().eq(AppUser::getWechat_open_id, openid));
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+ if (appUser == null) {
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+ // [Insert] 不存在,则创建
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+ appUser = new AppUser();
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+ appUser.setWechat_open_id(openid);
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+ appUser.setNickname("微信用户" + RandomUtil.randomStringUpper(4));
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+ //
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+ appUser.setLast_login_uuid(uuid);
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+ appUser.setLast_login_ip(last_login_ip);
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+ appUser.setLast_login_time(last_login_time);
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+ appUserDao.insert(appUser);
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+ } else {
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+ // [Update] 更新时间
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+ appUser.setLast_login_uuid(uuid);
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+ appUser.setLast_login_ip(last_login_ip);
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+ appUser.setLast_login_time(last_login_time);
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+ appUserDao.updateById(appUser);
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+ }
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+ appUser.setUser_id(appUser.getId());
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+ appUser.setSession_key(session_key);
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+
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+ // 登录成功
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+ return loginSuccess(appUser);
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+ } else {
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+ throw new CustException(response.getStr("errmsg"));
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+ }
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+
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+ }
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+
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+}
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