backend/utils/ytdlp.js

78 lines
2.4 KiB
JavaScript

const child_process = require('child_process')
const DOMPurify = require('isomorphic-dompurify')
const metadata = require('./metadata.js')
async function downloadVideo(url, ws, id) {
return new Promise(async (resolve, reject) => {
const args = ['--proxy', 'socks5://gluetun:1080', url]
const video = await metadata.getVideoMetadata(id)
if (video.lengthSeconds > 1500) {
const formats = await getFormats(url, ws)
if (!formats.fail && formats.includes('18 mp4')) {
args.push('-f 18')
}
}
const child = child_process.spawn('../yt-dlp', args, {cwd: 'videos', shell: false})
// https://github.com/yt-dlp/yt-dlp/blob/cc8d8441524ec3442d7c0d3f8f33f15b66aa06f3/README.md?plain=1#L1500
child.stdout.on("data", data => {
const msg = data.toString().trim()
if (!msg) return
if (ws) ws.send(`DATA - ${DOMPurify.sanitize(msg)}`)
})
child.stderr.on("data", data => {
const msg = data.toString().trim()
if (!msg) return
if (ws) ws.send(`DATA - ${DOMPurify.sanitize(msg)}`)
})
child.on("close", async (code, signal) => {
if (code == 2 || code == 1) { // https://github.com/yt-dlp/yt-dlp/issues/4262
reject({
fail: true
})
} else {
resolve({
fail: false
})
}
})
})
}
async function getFormats(url, ws) {
return new Promise((resolve, reject) => {
const child = child_process.spawn("../yt-dlp", [url, "-F"], {cwd: 'videos', shell: false})
let outputs = ''
child.stdout.on("data", data => {
const msg = data.toString().trim()
if (!msg) return
outputs = outputs + msg
})
child.stderr.on("data", data => {
const msg = data.toString().trim()
if (!msg) return
if (ws) ws.send(`DATA - ${DOMPurify.sanitize(msg)}`)
})
child.on("close", async (code, signal) => {
if (code == 2 || code == 1) { // https://github.com/yt-dlp/yt-dlp/issues/4262
reject({
fail: true
})
} else {
resolve(outputs)
}
})
})
}
module.exports = { downloadVideo }