autocode/utils/wechat.go

package utils

import (
	"errors"
	"fmt"
	"github.com/gin-gonic/gin"
	"github.com/songzhibin97/gkit/tools/gjson"
)

const ()

/*
发送微信消息结构体定义
*/

type Val struct {
	Value interface{} `json:"value"`
}

type ValColor struct {
	Value interface{} `json:"value"`
	Color string      `json:"color,omitempty"` //字体颜色
}

type TPL struct {
	Touser     string `json:"touser"`        //微信用户ID
	TemplateId string `json:"template_id"`   //微信公众号模板消息ID
	Url        string `json:"url,omitempty"` //会从微信跳转到该URL页面
	Data       gin.H  `json:"data"`          //微信消息模板中参数内容
}

var (
	/** 微信接口URL **/
	//获取Access token
	WechatAccessTokenUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%v&secret=%v"
	//发送模板消息
	WechatTplSendUrl = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=%v"
	//获取微信用户基本信息
	WeChatUserInfoUrl = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=%v&openid=%v&lang=zh_CN"
	//微信二维码请求
	WechatQrcodeCreateUrl = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=%v"
	//创建二维码参数设置
	WechatQrcodeCreatePostParameter = `{"expire_seconds": %v, "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": %v}}}`
	//二维码图片地址
	WechatQrcodeImg = "https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=%v"

	/** 微信公众号模版ID **/
	//账号登陆成功通知
	WechatTplID_100 = "5qm_kPSs7JyYSgjd3kIBH2tLpVm3R8zbu0fFrOPDyrw"
	//用户登录提醒
	WechatTplID_200 = "9rKojfQ8P8-BKAqiO4wa6k9KkI20TC94A3Sx1jzKAi4"
	//登陆提醒
	WechatTplID_300 = "3x9HB1IowrdgOFS4vJcvb2p11MZB0QZTSRoferYWsO0"
)

////本地计算签名 signature
//func MakeSignature(timestamp, nonce string) string {
//	si := []string{token, timestamp, nonce}
//	sort.Strings(si)            //字典序排序
//	str := strings.Join(si, "") //组合字符串
//	s := sha1.New()             //返回一个新的使用SHA1校验的hash.Hash接口
//	io.WriteString(s, str)      //WriteString函数将字符串数组str中的内容写入到s中
//	return fmt.Sprintf("%x", s.Sum(nil))
//}

var (
	AppID     = "wx53b33076923e4e7f"
	AppSecret = "768efa1f3f8d9d42061d8af1cd3ea936"
)

//获取微信公众号的access_token
func GetAccessToken() (access_token string, error error) {

	accessTokenUrl := fmt.Sprintf(WechatAccessTokenUrl, AppID, AppSecret)
	returnAccessTokenData, err := Get(accessTokenUrl)
	if err != nil {
		//请求微信相关接口网络连接出错
		return "", errors.New("请求微信相关接口网络连接出错" + fmt.Sprintf("%v", err))

	}
	access_token = gjson.GetBytes(returnAccessTokenData, "access_token").String()
	if len(access_token) == 0 {
		//微信接口返回的错误json信息 string(returnData)
		return "", errors.New(string(returnAccessTokenData))
	}

	return access_token, nil

}

func GetKenAndOpenid(code string) (session_key, openid string, err error) {

	url := fmt.Sprintf(`https://api.weixin.qq.com/sns/jscode2session?appid=%v&secret=%v&js_code=%v&grant_type=authorization_code`, AppID, AppSecret, code)
	res, err := Get(url)
	if err != nil {
		//请求微信相关接口网络连接出错
		return
	}
	fmt.Println("获取用户openid，和解密私钥session_key", string((res)))
	session_key = gjson.GetBytes(res, "session_key").String()
	openid = gjson.GetBytes(res, "openid").String()
	return
}