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const express = require('express')
const path = require('path')
const SocketIO = require('socket.io')
const qrcode = require('qrcode')
const fetch = require('node-fetch')
function connect(conn, PORT) {
let app = global.app = express()
// app.use(express.static(path.join(__dirname, 'views')))
let _qr = 'invalid'
conn.ev.on('connection.update', function appQR({ qr }) {
if (qr) _qr = qr
})
app.use(async (req, res) => {
res.setHeader('content-type', 'image/png')
res.end(await qrcode.toBuffer(_qr))
})
let server = app.listen(7860, () => {
console.log('App listened on port 7860')
if (opts['keepalive']) keepAlive()
})
let io = SocketIO(server)
io.on('connection', socket => {
let { unpipeEmit } = pipeEmit(conn, socket, 'conn-')
socket.on('disconnect', unpipeEmit)
})
}
function pipeEmit(event, event2, prefix = '') {
let old = event.emit
event.emit = function (event, ...args) {
old.emit(event, ...args)
event2.emit(prefix + event, ...args)
}
return {
unpipeEmit() {
event.emit = old
}
}
}
function keepAlive() {
const url = `https://${process.env.REPL_SLUG}.${process.env.REPL_OWNER}.repl.co`
if (/(\/\/|\.)undefined\./.test(url)) return
setInterval(()=> {
fetch(url).catch(console.error)
}, 5 * 1000 * 60)
}
module.exports = connect
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