云开发解析获取手机号

直接cv大法就可以用注意传参

// 云函数入口文件

const cloud = require('wx-server-sdk')

const request = require('request')

const jwt = require('jsonwebtoken')

cloud.init()

const db = cloud.database()

const crypto = require('crypto')

// 云函数入口函数

exports.main = async (event, context) => {

/**code是通过wx.login获取的。

**iv,encryptedData通过微信开放能力getphoneNumber获取的

**/

const { iv, encryptedData, userid, code } = event

const wxContext = cloud.getWXContext()

const openid = wxContext.OPENID

const appid = wxContext.APPID

const unionid = wxContext.UNIONID

let phoneNumber

phoneNumber = await mobileDecode({ iv, encryptedData, code, appid })

console.log('phone' + phoneNumber);

return phoneNumber;

}

 

async function requestSync(url) {

return new Promise((resolve, reject) => {

try {

request(url, (err, resp, body) => {

if (err) {

return reject(err)

}

return resolve(body)

})

} catch (e) {

return reject(e)

}

})

}

async function mobileDecode(data) {

const { iv, encryptedData, code, appid } = data

const secret = '897b5234984dedc373ed0fd300e5c5d9'

const url = `https://api.weixin.qq.com/sns/jscode2session?appid=${appid}&secret=${secret}&js_code=${code}&grant_type=authorization_code`

const req = await requestSync(url)

const session = JSON.parse(req)

const sessionKey = session.session_key

// console.log(sessionKey)

const crypted = Buffer.from(encryptedData, 'base64')

const key = Buffer.from(sessionKey, 'base64')

const i = Buffer.from(iv, 'base64')

const decipher = crypto.createDecipheriv('aes-128-cbc', key, i)

let decoded = decipher.update(crypted, 'base64', 'utf8')

decoded += decipher.final('utf8')

const mobile = JSON.parse(decoded).phoneNumber

console.log(mobile);

return mobile

}