dalai/torrent.js

53 lines
1.6 KiB
JavaScript

const WebTorrent = require('webtorrent')
const term = require( 'terminal-kit' ).terminal;
const path = require('path')
const fs = require('fs')
class TorrentDownloader {
constructor() {
this.client = new WebTorrent()
this.start = {}
this.progressbar = {}
}
add(url, folder, cb) {
return new Promise((resolve, reject) => {
let e = fs.existsSync(folder)
if (!e) {
fs.mkdirSync(folder, { recursive: true })
}
this.client.add(url, { path: folder }, (torrent) => {
this.progressbar[url] = term.progressBar({
width: 120,
title: torrent.name,
eta: true,
percent: true
});
torrent.on('metadata', (m) => {
this.start[torrent.name] = Date.now()
console.log({ metadata: m })
term("\n")
})
torrent.on('download', bytes => {
if (cb) {
cb({ progress: torrent.progress, speed: torrent.downloadSpeed, downloaded: torrent.downloaded })
}
this.progressbar[url].update(torrent.progress)
})
torrent.on('done', () => {
console.log('torrent download finished')
const end = Date.now()
const elapsed = end - this.start[torrent.name]
console.log({ start: this.start[torrent.name], end: end, elapsed })
this.progressbar[url].update(1)
term("\n")
resolve(torrent)
for (const file of torrent.files) {
// do something with file
console.log("file", file.name, file.size)
}
})
})
})
}
}
module.exports = TorrentDownloader