package com.ruoyi.framework.web.service;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.concurrent.TimeUnit;
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import javax.servlet.http.HttpServletRequest;
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import com.ruoyi.common.core.domain.model.LoginUserApplet;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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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.core.Authentication;
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import org.springframework.security.core.context.SecurityContextHolder;
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import org.springframework.stereotype.Component;
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import com.ruoyi.common.constant.CacheConstants;
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import com.ruoyi.common.constant.Constants;
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import com.ruoyi.common.core.domain.model.LoginUser;
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import com.ruoyi.common.core.redis.RedisCache;
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import com.ruoyi.common.utils.ServletUtils;
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import com.ruoyi.common.utils.StringUtils;
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import com.ruoyi.common.utils.ip.AddressUtils;
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import com.ruoyi.common.utils.ip.IpUtils;
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import com.ruoyi.common.utils.uuid.IdUtils;
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import eu.bitwalker.useragentutils.UserAgent;
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import io.jsonwebtoken.Claims;
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import io.jsonwebtoken.Jwts;
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import io.jsonwebtoken.SignatureAlgorithm;
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/**
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* token验证处理
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*
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* @author ruoyi
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*/
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@Component
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public class TokenService
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{
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private static final Logger log = LoggerFactory.getLogger(TokenService.class);
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// 令牌自定义标识
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@Value("${token.header}")
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private String header;
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// 令牌秘钥
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@Value("${token.secret}")
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private String secret;
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// 令牌有效期（默认30分钟）
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@Value("${token.expireTime}")
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private int expireTime;
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protected static final long MILLIS_SECOND = 1000;
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protected static final long MILLIS_MINUTE = 60 * MILLIS_SECOND;
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private static final Long MILLIS_MINUTE_TEN = 20 * 60 * 1000L;
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@Autowired
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private RedisCache redisCache;
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/**
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* 获取用户身份信息
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*
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* @return 用户信息
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*/
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public LoginUser getLoginUser()
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{
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return getLoginUser(ServletUtils.getRequest());
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}
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/**
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* 小程序获取用户身份信息
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*
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* @return 用户信息
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*/
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public LoginUserApplet getLoginUserApplet()
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{
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return getLoginUserApplet(ServletUtils.getRequest());
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}
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/**
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* 获取用户身份信息
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*
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* @return 用户信息
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*/
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public LoginUser getLoginUser(HttpServletRequest request)
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{
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// 获取请求携带的令牌
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String token = getToken(request);
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if (StringUtils.isNotEmpty(token))
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{
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try
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{
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Claims claims = parseToken(token);
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// 解析对应的权限以及用户信息
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String uuid = (String) claims.get(Constants.LOGIN_USER_KEY);
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String userKey = getTokenKey(uuid);
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LoginUser user = redisCache.getCacheObject(userKey);
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return user;
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}
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catch (Exception e)
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{
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log.error("获取用户信息异常'{}'", e.getMessage());
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}
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}
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return null;
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}
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/**
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* 小程序获取用户身份信息
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*
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* @return 用户信息
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*/
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public LoginUserApplet getLoginUserApplet(HttpServletRequest request)
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{
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// 获取请求携带的令牌
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String token = getToken(request);
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if (StringUtils.isNotEmpty(token))
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{
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try
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{
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Claims claims = parseToken(token);
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// 解析对应的权限以及用户信息
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String uuid = (String) claims.get(Constants.LOGIN_USER_APPLET_KEY);
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String userKey = getTokenKey(uuid);
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LoginUserApplet user = redisCache.getCacheObject(userKey);
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return user;
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}
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catch (Exception e)
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{
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log.error("获取用户信息异常'{}'", e.getMessage());
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}
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}
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return null;
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}
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/**
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* 设置用户身份信息
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*/
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public void setLoginUser(LoginUser loginUser)
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{
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if (StringUtils.isNotNull(loginUser) && StringUtils.isNotEmpty(loginUser.getToken()))
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{
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refreshToken(loginUser);
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}
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}
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/**
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* 删除用户身份信息
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*/
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public void delLoginUser(String token)
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{
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if (StringUtils.isNotEmpty(token))
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{
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String userKey = getTokenKey(token);
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redisCache.deleteObject(userKey);
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}
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}
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/**
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* 创建令牌
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*
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* @param loginUser 用户信息
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* @return 令牌
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*/
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public String createToken(LoginUser loginUser)
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{
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String token = IdUtils.fastUUID();
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loginUser.setToken(token);
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setUserAgent(loginUser);
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refreshToken(loginUser);
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Map<String, Object> claims = new HashMap<>();
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claims.put(Constants.LOGIN_USER_KEY, token);
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return createToken(claims);
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}
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/**
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* 创建用户小程序令牌
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*
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* @param loginUser 用户信息
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* @return 令牌
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*/
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public String createTokenApplet(LoginUserApplet loginUser)
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{
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String token = IdUtils.fastUUID();
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loginUser.setToken(token);
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setUserAgentApplet(loginUser);
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refreshTokenApplet(loginUser);
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Map<String, Object> claims = new HashMap<>();
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claims.put(Constants.LOGIN_USER_APPLET_KEY, token);
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return createTokenApplet(claims);
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}
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/**
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* 验证令牌有效期，相差不足20分钟，自动刷新缓存
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*
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* @param loginUser
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* @return 令牌
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*/
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public void verifyToken(LoginUser loginUser)
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{
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long expireTime = loginUser.getExpireTime();
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long currentTime = System.currentTimeMillis();
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if (expireTime - currentTime <= MILLIS_MINUTE_TEN)
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{
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refreshToken(loginUser);
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}
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}
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public boolean verifyToken(String token)
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{
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Claims claims = parseToken(token);
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return true;
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}
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/**
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* 小程序验证令牌有效期，相差不足20分钟，自动刷新缓存
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*
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* @param loginUser
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* @return 令牌
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*/
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public void verifyTokenApplet(LoginUserApplet loginUser)
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{
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long expireTime = loginUser.getExpireTime();
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long currentTime = System.currentTimeMillis();
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if (expireTime - currentTime <= MILLIS_MINUTE_TEN)
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{
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refreshTokenApplet(loginUser);
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}
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}
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/**
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* 刷新令牌有效期
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*
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* @param loginUser 登录信息
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*/
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public void refreshToken(LoginUser loginUser)
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{
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loginUser.setLoginTime(System.currentTimeMillis());
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loginUser.setExpireTime(loginUser.getLoginTime() + expireTime * MILLIS_MINUTE);
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// 根据uuid将loginUser缓存
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String userKey = getTokenKey(loginUser.getToken());
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redisCache.setCacheObject(userKey, loginUser, expireTime, TimeUnit.MINUTES);
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}
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/**
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* 刷新令牌有效期
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*
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* @param loginUser 登录信息
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*/
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public void refreshTokenApplet(LoginUserApplet loginUser)
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{
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loginUser.setLoginTime(System.currentTimeMillis());
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loginUser.setExpireTime(loginUser.getLoginTime() + expireTime * MILLIS_MINUTE);
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// 根据uuid将loginUser缓存
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String userKey = getTokenKey(loginUser.getToken());
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redisCache.setCacheObject(userKey, loginUser, expireTime, TimeUnit.MINUTES);
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}
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/**
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* 设置用户代理信息
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*
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* @param loginUser 登录信息
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*/
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public void setUserAgent(LoginUser loginUser)
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{
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UserAgent userAgent = UserAgent.parseUserAgentString(ServletUtils.getRequest().getHeader("User-Agent"));
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String ip = IpUtils.getIpAddr();
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loginUser.setIpaddr(ip);
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loginUser.setLoginLocation(AddressUtils.getRealAddressByIP(ip));
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loginUser.setBrowser(userAgent.getBrowser().getName());
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loginUser.setOs(userAgent.getOperatingSystem().getName());
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}
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/**
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* 设置用户代理信息
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*
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* @param loginUser 登录信息
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*/
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public void setUserAgentApplet(LoginUserApplet loginUser)
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{
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UserAgent userAgent = UserAgent.parseUserAgentString(ServletUtils.getRequest().getHeader("User-Agent"));
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String ip = IpUtils.getIpAddr();
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loginUser.setIpaddr(ip);
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loginUser.setLoginLocation(AddressUtils.getRealAddressByIP(ip));
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loginUser.setBrowser(userAgent.getBrowser().getName());
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loginUser.setOs(userAgent.getOperatingSystem().getName());
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}
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/**
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* 从数据声明生成令牌
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*
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* @param claims 数据声明
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* @return 令牌
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*/
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private String createToken(Map<String, Object> claims)
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{
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String token = Jwts.builder()
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.setClaims(claims)
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.signWith(SignatureAlgorithm.HS512, secret).compact();
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return token;
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}
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/**
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* 小程序从数据声明生成令牌
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*
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* @param claims 数据声明
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* @return 令牌
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*/
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private String createTokenApplet(Map<String, Object> claims)
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{
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String token = Jwts.builder()
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.setClaims(claims)
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.signWith(SignatureAlgorithm.HS512, secret).compact();
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return token;
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}
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/**
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* 从令牌中获取数据声明
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*
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* @param token 令牌
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* @return 数据声明
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*/
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private Claims parseToken(String token)
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{
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return Jwts.parser()
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.setSigningKey(secret)
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.parseClaimsJws(token)
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.getBody();
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}
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/**
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* 从令牌中获取用户名
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*
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* @param token 令牌
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* @return 用户名
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*/
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public String getUsernameFromToken(String token)
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{
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Claims claims = parseToken(token);
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return claims.getSubject();
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}
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/**
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* 获取请求token
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*
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* @param request
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* @return token
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*/
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private String getToken(HttpServletRequest request)
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{
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String token = request.getHeader(header);
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if (StringUtils.isNotEmpty(token) && token.startsWith(Constants.TOKEN_PREFIX))
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{
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token = token.replace(Constants.TOKEN_PREFIX, "");
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}
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return token;
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}
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public String getTokenKey(String uuid)
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{
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return CacheConstants.LOGIN_TOKEN_KEY + uuid;
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}
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}
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