jeff-downloader/routes/index.js

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JavaScript
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2021-05-18 18:48:58 +02:00
var express = require('express');
var router = express.Router();
const youtubedl = require('youtube-dl');
const fs = require('fs');
const path = require('path');
const ffmpeg = require('fluent-ffmpeg');
const formidable = require('formidable');
const { version } = require('../package.json');
const proxy = require('../proxy/proxy.json');
let progress = {};
let viewCounter = 0;
let files = [];
let day;
let month;
let announcementArray = [];
let announcement;
function formatBytes(bytes, decimals = 2) { // https://stackoverflow.com/a/18650828
if (bytes === 0) return '0 Bytes';
const k = 1024;
const dm = decimals < 0 ? 0 : decimals;
const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
const i = Math.floor(Math.log(bytes) / Math.log(k));
return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
}
/* GET home page. */
router.get('/', function(req, res, next) {
viewCounter++;
files = [];
let file = [];
for (let f of fs.readdirSync('./public/uploads')) {
if (f.endsWith('.mp4') || f.endsWith('.webm') || f.endsWith('.mp3') || f.endsWith('.flac'))
file.push(f)
}
// get the 5 most recent files
file = file.sort((a, b) => {
if ((a || b).endsWith('.mp4') || (a || b).endsWith('.webm') || (a || b).endsWith('.mp3') || (a || b).endsWith('.flac')) {
let time1 = fs.statSync(`./public/uploads/${b}`).ctime;
let time2 = fs.statSync(`./public/uploads/${a}`).ctime;
if (time1 < time2) return -1;
if (time1 > time2) return 1;
}
return 0;
}).slice(0, 5)
// Save space by deleting file that doesn't appear in the recent feed
for (let f of fs.readdirSync('./public/uploads')) {
if (!file.includes(f) && (f != 'hidden' && f != '.keep')) {
if (fs.existsSync(`./public/uploads/${f}`))
fs.unlinkSync(`./public/uploads/${f}`);
if (fs.existsSync(`./public/thumbnail/${f}`))
fs.unlinkSync(`./public/thumbnail/${f}`);
if (fs.existsSync(`./public/thumbnail/${f}.png`))
fs.unlinkSync(`./public/thumbnail/${f}.png`);
}
}
for (let f of file) {
let fileInfo = formatBytes(fs.statSync(`./public/uploads/${f}`).size).split(' ');
let defaultFiles = { name: f.replace(path.extname(f), ''), size: fileInfo[0], unit: fileInfo[1], date: fs.statSync(`./public/uploads/${f}`).ctime, location: `uploads/${f}`, ext: path.extname(f), thumbnail: `/thumbnail/${f}`, img: `/thumbnail/${f.replace(path.extname(f), '.png')}` };
if (f.endsWith('.mp3') || f.endsWith('.flac')) {
defaultFiles.thumbnail = `./thumbnail/${f.replace(path.extname(f), '.png')}`
}
files.push(defaultFiles);
}
res.render('index', { version: version, files: files, viewCounter: viewCounter, proxy: proxy });
});
router.get('/status/:uuid', function (req, res ,next) {
let uuid = req.params.uuid;
if (progress[uuid]) {
res.send(progress[uuid]);
}
});
router.post('/', async function(req, res, next) {
let data;
const form = formidable({ multiples: true});
data = await new Promise(function(resolve, reject) {
form.parse(req, function(err, fields, files) {
if (err) {
reject(err)
}
resolve({...fields})
})
});
console.log(data.url);
if (data.url === undefined) {
//res.render('index', { error: true, errormsg: 'You didn\'t input a link'})
return res.send('You didn\'t input a link')
}
let quality;
if (data.quality === 'worst') {
quality = 'worst';
} else {
quality = 'best';
}
if (data.format === undefined) {
data.format = 'mp4';
}
if (data.url.toLowerCase().includes('porn')) {
data.feed = 'on';
}
let videoID;
if (data.sponsorBlock) {
let regExp = /^.*((youtu.be\/)|(v\/)|(\/u\/\w\/)|(embed\/)|(watch\?))\??v?=?([^#&?]*).*/;
let match = data.url.match(regExp);
videoID = (match&&match[7].length==11)? match[7] : false;
if (!videoID) {
return res.json({error: 'To use sponsorBlock you need a valid youtube link!'});
//res.render('index', { error: true, errormsg: 'To use sponsorBlock you need a valid youtube link!'})
}
}
let options = ['--format=mp4', '-f', quality];
if (data.proxy !== 'none') {
options.push('--proxy');
options.push(data.proxy);
}
console.log(options);
let video = youtubedl(data.url, options);
video.on('error', function(err) {
console.error(err);
res.json({ error: err.stderr});
});
let ext;
let size = 0;
video.on('info', function(info) {
size = info.size;
if (size / 1000000.0 > 10000) return res.json({error: 'Sorry, but I don\'t have enough storage to store something this big.'});
// Set file name
ext = info.ext;
let title = info.title.slice(0,50);
DLFile = `${title.replace(/\s/g, '')}.${ext}`;
DLFile = DLFile.replace(/[()]|[/]|[\\]|[!]|[?]/g, '');
DLFile = DLFile.replace(',', '');
// If no title use the ID
if (title === '_') title = `_${info.id}`;
// If user want to hide from the feed
if (data.feed === 'on')
DLFile = `hidden/${title}.${ext}`;
if (data.sponsorBlock) video.pipe(fs.createWriteStream(`./public/uploads/hidden/${DLFile}`));
else video.pipe(fs.createWriteStream(`./public/uploads/${DLFile}`));
});
let pos = 0
video.on('data', (chunk) => {
pos += chunk.length
// `size` should not be 0 here.
if (size) {
let percent = (pos / size * 100).toFixed(2)
progress[data.uuid] = percent;
}
})
video.on('end', function() {
progress[data.uuid] = 0;
if (data.format === 'mp4' || data.format === 'webm') {
if (data.sponsorBlock) { // WARNING: THIS PART SUCK
let filter = '';
let abc = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'];
fetch(`https://sponsor.ajay.app/api/skipSegments?videoID=${videoID}`)
.then(res => {
if (res.status === 404) {
return res.json({error: 'Couldn\'t find any SponsorBlock data for this video.'});
//return this.res.render('index', { error: true, errormsg: 'Couldn\'t find any SponsorBlock data for this video.'})
}
return res.json();
})
.then(json => {
if (json === undefined) return;
let i = 0;
let previousEnd;
let usedLetter = [];
json.forEach(sponsor => {
usedLetter.push(abc[i]);
if (i === 0) {
filter += `[0:v]trim=start=0:end=${sponsor.segment[0]},setpts=PTS-STARTPTS[${abc[i]}v];`;
filter += `[0:a]atrim=start=0:end=${sponsor.segment[0]},asetpts=PTS-STARTPTS[${abc[i]}a];`;
} else {
filter += `[0:v]trim=start=${previousEnd}:end=${sponsor.segment[0]},setpts=PTS-STARTPTS[${abc[i]}v];`;
filter += `[0:a]atrim=start=${previousEnd}:end=${sponsor.segment[0]},asetpts=PTS-STARTPTS[${abc[i]}a];`;
}
previousEnd = sponsor.segment[1];
i++;
});
usedLetter.push(abc[i]);
filter += `[0:v]trim=start=${previousEnd},setpts=PTS-STARTPTS[${abc[i]}v];`;
filter += `[0:a]atrim=start=${previousEnd},asetpts=PTS-STARTPTS[${abc[i]}a];`;
let video = '';
let audio = '';
usedLetter.forEach(letter => {
video += `[${letter}v]`
audio += `[${letter}a]`
});
filter += `${video}concat=n=${i + 1}[outv];`;
filter += `${audio}concat=n=${i + 1}:v=0:a=1[outa]`;
ffmpeg(`./public/uploads/hidden/${DLFile}`)
.inputFormat('mp4')
.complexFilter(filter)
.outputOptions('-map [outv]')
.outputOptions('-map [outa]')
.save(`./public/uploads/${DLFile}`)
.on('error', function(err, stdout, stderr) {
console.log('Cannot process video: ' + err.message);
return res.json({error: err.message});
//return res.render('index', { error: true, errormsg: err.message})
})
.on('end', () => {
console.log('end');
//res.attachment(`./public/uploads/${DLFile}`)
res.json({url: `uploads/${DLFile}`})
if (data.feed !== 'on') generateThumbnail(DLFile);
});
});
} else {
// If user requested mp4 directly attach the file
res.json({url: `uploads/${DLFile}`})
if (data.feed !== 'on') generateThumbnail(DLFile);
}
} else {
// If user requested an audio format, convert it
ffmpeg(`./public/uploads/${DLFile}`)
.noVideo()
.audioChannels('2')
.audioFrequency('44100')
.audioBitrate('320k')
.format(data.format)
.save(`./public/uploads/${DLFile.replace(`.${ext}`, `.${data.format}`)}`)
.on('error', function(err, stdout, stderr) {
console.log('Cannot process video: ' + err.message);
return res.json({error: err.message});
//return res.render('index', { error: true, errormsg: err.message})
})
.on('end', () => {
fs.unlinkSync(`./public/uploads/${DLFile}`);
if (data.feed !== 'on') generateWaveform(DLFile.replace(`.${ext}`, `.${data.format}`));
return res.json({url: `uploads/${DLFile.replace(`.${ext}`, `.${data.format}`)}`});
//return res.attachment(`./public/uploads/${DLFile.replace(`.${ext}`, `.${data.format}`)}`);
});
}
});
function uuidv4() {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
return v.toString(16);
});
}
});
module.exports = router;
async function generateWaveform(f) {
ffmpeg(`./public/uploads/${f}`)
.complexFilter('[0:a]aformat=channel_layouts=mono,compand=gain=-6,showwavespic=s=600x120:colors=#9cf42f[fg];color=s=600x120:color=#44582c,drawgrid=width=iw/10:height=ih/5:color=#9cf42f@0.1[bg];[bg][fg]overlay=format=rgb,drawbox=x=(iw-w)/2:y=(ih-h)/2:w=iw:h=1:color=#9cf42f')
.frames(1)
.noVideo()
.noAudio()
.duration(0.1)
.on('error', function(err, stdout, stderr) {
return console.log('Cannot process video: ' + err.message);
})
.on('end', () => {
generateThumbnail(`../thumbnail/${f.replace(path.extname(f), '.mp4')}`);
})
.save(`./public/thumbnail/${f.replace(path.extname(f), '.mp4')}`);
}
async function generateThumbnail(f) {
ffmpeg(`./public/uploads/${f}`)
.screenshots({
timestamps: ['20%'],
size: '720x480',
folder: './public/thumbnail/',
filename: f.replace(path.extname(f), '.png')
})
.on('error', function(err, stdout, stderr) {
return console.log('Cannot process video: ' + err.message);
});
if (!fs.existsSync(`./public/thumbnail/tmp/${f}`) && !f.startsWith('../thumbnail'))
fs.mkdirSync(`./public/thumbnail/tmp/${f}`)
ffmpeg(`./public/uploads/${f}`)
.complexFilter('select=gt(scene\\,0.8)')
.frames(10)
.complexFilter('fps=fps=1/10')
.save(`./public/thumbnail/tmp/${f}/%03d.png`)
.on('error', function(err, stdout, stderr) {
return console.log('Cannot process video: ' + err.message);
})
.on('end', () => {
ffmpeg(`./public/thumbnail/tmp/${f}/%03d.png`)
.complexFilter('zoompan=d=(.5+.5)/.5:s=640x480:fps=1/.5,framerate=25:interp_start=0:interp_end=255:scene=100')
.format('mp4')
.save(`./public/thumbnail/${f}`)
.on('error', function(err, stdout, stderr) {
return console.log('Cannot process video: ' + err.message);
})
.on('end', () => {
// Save space by deleting tmp directory
for (let files of fs.readdirSync(`./public/thumbnail/tmp/${f}`)) {
if (files == '.keep') return;
fs.unlinkSync(`./public/thumbnail/tmp/${f}/${files}`);
}
fs.rmdirSync(`./public/thumbnail/tmp/${f}`);
});
});
}