package cn.exrick.xboot.social.controller;
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import cn.exrick.xboot.core.common.annotation.SystemLog;
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import cn.exrick.xboot.core.common.constant.CommonConstant;
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import cn.exrick.xboot.core.common.constant.SecurityConstant;
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import cn.exrick.xboot.core.common.enums.LogType;
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import cn.exrick.xboot.core.common.redis.RedisTemplateHelper;
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import cn.exrick.xboot.core.common.utils.ResultUtil;
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import cn.exrick.xboot.core.common.utils.SecurityUtil;
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import cn.exrick.xboot.core.common.vo.Result;
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import cn.exrick.xboot.core.config.security.SecurityUserDetails;
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import cn.exrick.xboot.core.entity.User;
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import cn.exrick.xboot.social.entity.Social;
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import cn.exrick.xboot.social.service.SocialService;
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import cn.exrick.xboot.social.vo.WechatUserInfo;
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import cn.hutool.core.util.IdUtil;
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import cn.hutool.core.util.StrUtil;
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import cn.hutool.http.HttpUtil;
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import com.google.gson.Gson;
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import com.google.gson.JsonObject;
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import com.google.gson.JsonParser;
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import io.swagger.annotations.Api;
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import io.swagger.annotations.ApiOperation;
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import lombok.extern.slf4j.Slf4j;
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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.authentication.UsernamePasswordAuthenticationToken;
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import org.springframework.security.core.context.SecurityContextHolder;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.ResponseBody;
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import java.io.UnsupportedEncodingException;
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import java.net.URLEncoder;
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import java.util.concurrent.TimeUnit;
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/**
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* https://developers.weixin.qq.com/doc/oplatform/Website_App/WeChat_Login/Wechat_Login.html
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* @author Exrickx
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*/
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@Slf4j
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@Api(tags = "微信登录接口")
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@RequestMapping("/xboot/social/wechat")
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@Controller
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public class WechatController {
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@Value("${xboot.social.wechat.appId}")
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private String appId;
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@Value("${xboot.social.wechat.appSecret}")
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private String appSecret;
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@Value("${xboot.social.wechat.callbackUrl}")
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private String callbackUrl;
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@Value("${xboot.social.callbackFeUrl}")
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private String callbackFeUrl;
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@Value("${xboot.social.callbackFeRelateUrl}")
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private String callbackFeRelateUrl;
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private static final String STATE = SecurityConstant.WECHAT_STATE;
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private static final Integer TYPE = CommonConstant.SOCIAL_TYPE_WECHAT;
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@Autowired
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private SocialService socialService;
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@Autowired
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private SecurityUtil securityUtil;
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@Autowired
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private RedisTemplateHelper redisTemplate;
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/**
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* 微信认证服务器地址
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*/
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private static final String AUTHORIZE_URL = "https://open.weixin.qq.com/connect/qrconnect";
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/**
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* 申请令牌地址
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*/
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private static final String ACCESS_TOKEN_URL = "https://api.weixin.qq.com/sns/oauth2/access_token";
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/**
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* 获取用户信息地址
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*/
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private static final String GET_USERINFO_URL = "https://api.weixin.qq.com/sns/userinfo";
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@RequestMapping(value = "/login", method = RequestMethod.GET)
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@ApiOperation(value = "获取wechat认证链接")
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@ResponseBody
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public Result<Object> login() throws UnsupportedEncodingException {
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// 生成并保存state 忽略该参数有可能导致CSRF攻击
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String state = String.valueOf(System.currentTimeMillis());
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redisTemplate.set(STATE + state, "VALID", 3L, TimeUnit.MINUTES);
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// 传递参数response_type、client_id、state、redirect_uri
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String url = AUTHORIZE_URL + "?appid=" + appId + "&redirect_uri=" + URLEncoder.encode(callbackUrl, "utf-8") + "&response_type=code" +
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"&scope=snsapi_login&state=" + state;
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return ResultUtil.data(url);
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}
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@RequestMapping(value = "/callback", method = RequestMethod.GET)
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@ApiOperation(value = "获取accessToken")
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@SystemLog(description = "微信关联登录", type = LogType.LOGIN)
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public String callback(@RequestParam(required = false) String code,
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@RequestParam(required = false) String state) throws UnsupportedEncodingException {
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if (StrUtil.isBlank(code)) {
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return "redirect:" + callbackFeUrl + "?error=" + URLEncoder.encode("您未同意授权", "utf-8");
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}
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// 验证state
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String v = redisTemplate.get(STATE + state);
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redisTemplate.delete(STATE + state);
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if (StrUtil.isBlank(v)) {
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return "redirect:" + callbackFeUrl + "?error=" + URLEncoder.encode("授权超时或state不正确", "utf-8");
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}
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// 传递参数grant_type、code、redirect_uri、appid、appsecret
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String accessTokenUrl = ACCESS_TOKEN_URL + "?appid=" + appId + "&secret=" + appSecret + "&code=" + code +
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"&grant_type=authorization_code";
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// 申请令牌
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String result = HttpUtil.get(accessTokenUrl);
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if (!result.contains("access_token")) {
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return "redirect:" + callbackFeUrl + "?error=" + URLEncoder.encode("获取access_token失败", "utf-8");
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}
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JsonObject jsonObject = JsonParser.parseString(result).getAsJsonObject();
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String accessToken = jsonObject.get("access_token").getAsString();
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String openId = jsonObject.get("openid").getAsString();
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// 获取用户信息
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String userInfo = HttpUtil.get(GET_USERINFO_URL + "?access_token=" + accessToken + "&openid=" + openId);
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WechatUserInfo wu = new Gson().fromJson(userInfo, WechatUserInfo.class);
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// 存入数据库
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Social wechat = socialService.findByOpenIdAndPlatform(wu.getOpenid(), TYPE);
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if (wechat == null) {
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Social w = new Social().setOpenId(wu.getOpenid()).setUsername(wu.getNickname()).setAvatar(wu.getHeadimgurl()).setPlatform(TYPE);
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wechat = socialService.save(w);
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}
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String url = "";
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// 判断是否绑定账号
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if (StrUtil.isNotBlank(wechat.getRelateUsername())) {
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// 已绑定 直接登录
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String JWT = securityUtil.getToken(wechat.getRelateUsername(), true);
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// 存入redis
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String JWTKey = IdUtil.simpleUUID();
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redisTemplate.set(JWTKey, JWT, 2L, TimeUnit.MINUTES);
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url = callbackFeUrl + "?related=1&JWTKey=" + JWTKey;
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// 记录日志使用
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UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(
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new SecurityUserDetails(new User().setUsername(wechat.getRelateUsername())), null, null);
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SecurityContextHolder.getContext().setAuthentication(authentication);
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} else {
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// 未绑定 Redis存入id
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String idToken = IdUtil.simpleUUID();
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redisTemplate.set(idToken, wechat.getId(), 5L, TimeUnit.MINUTES);
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url = callbackFeRelateUrl + "?socialType=" + TYPE + "&id=" + idToken;
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}
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return "redirect:" + url;
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}
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}
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