333 lines
12 KiB
JavaScript
333 lines
12 KiB
JavaScript
const fs = require('node:fs')
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const crypto = require('node:crypto')
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const { RedisRateLimiter } = require('rolling-rate-limiter')
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const upload = require('../utils/upload.js')
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const ytdlp = require('../utils/ytdlp.js')
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const redis = require('../utils/redis.js')
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const validate = require('../utils/validate.js')
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const metadata = require('../utils/metadata.js')
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const websocket = require('../utils/websocket.js')
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const captcha = require("../utils/captcha.js")
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const logger = require("../utils/logger.js")
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const { PrismaClient } = require('@prisma/client')
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const prisma = new PrismaClient()
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const limiter = new RedisRateLimiter({
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client: redis,
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namespace: 'autodownload:',
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interval: 24 * 60 * 60 * 1000,
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maxInInterval: 5
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})
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exports.save = async (ws, req) => {
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logger.info({ message: `${req.path} ${JSON.stringify(req.query)}` })
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const id = await validate.validateVideoInput(req.query.url)
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if (id.fail) {
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ws.send(`ERROR - ${id.message}`)
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return ws.close()
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}
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if (await redis.get(id)) {
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ws.send('DATA - Someone is already downloading this video...')
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return ws.close()
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}
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if (await redis.get(`blacklist:${id}`)) {
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ws.send('DATA - You can\'t download that. The video is blacklisted.')
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return ws.close()
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}
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const already = await prisma.videos.findFirst({
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where: {
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id: id
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}
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})
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if (already) return ws.send(`DONE - ${process.env.FRONTEND}/watch?v=${id}`)
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ws.send('DATA - This process is automatic. Your video will start archiving shortly.')
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ws.send('CAPTCHA - Solving a cryptographic challenge before downloading.')
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ws.on('message', async function(msg) {
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if (msg == 'alive') return
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if (await redis.get(id) != 'downloading') {
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await redis.set(id, 'downloading')
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const confirm = await captcha.checkCaptcha(msg)
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if (confirm) startDownloading()
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else {
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await redis.del(id)
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ws.send('DATA - You little goofy goober tried to mess with the captcha...')
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ws.close()
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}
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} else {
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ws.send('DATA - You already sent captcha reply...')
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}
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})
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async function startDownloading() {
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const download = await ytdlp.downloadVideo(`https://www.youtube.com/watch?v=${id}`, ws, id)
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if (download.fail) {
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await redis.del(id)
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ws.send(`DATA - ${download.message}`)
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ws.close()
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} else {
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const file = fs.readdirSync("videos").find(f => f.includes(id))
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if (file) {
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ws.send('DATA - Uploading file...')
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const videoUrl = await upload.uploadVideo(`./videos/${id}.mp4`)
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fs.unlinkSync(`./videos/${id}.mp4`)
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await websocket.createDatabaseVideo(id, videoUrl)
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ws.send(`DONE - ${process.env.FRONTEND}/watch?v=${id}`)
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}
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await redis.del(id)
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ws.close();
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}
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}
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}
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exports.playlist = async (ws, req) => {
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logger.info({ message: `${req.path} ${JSON.stringify(req.query)}` })
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const playlistId = await validate.validatePlaylistInput(req.query.url)
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if (playlistId.fail) {
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ws.send(`ERROR - ${playlistId.message}`)
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return ws.close()
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}
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let status = 'captcha'
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ws.send('DATA - This process is automatic. Your video will start archiving shortly.')
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ws.send('CAPTCHA - Solving a cryptographic challenge before downloading.')
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ws.on('message', async function(msg) {
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if (msg == 'alive') return
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if (status == 'captcha') {
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status = 'downloading'
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const confirm = await captcha.checkCaptcha(msg)
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if (confirm) startDownloading()
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else {
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await redis.del(id)
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ws.send('DATA - You little goofy goober tried to mess with the captcha...')
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ws.close()
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}
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} else {
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ws.send('DATA - You already sent captcha reply...')
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}
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})
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async function startDownloading() {
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const playlist = await metadata.getPlaylistVideos(playlistId)
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for (video of playlist.relatedStreams.slice(0, 5)) {
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if (ws.readyState !== ws.OPEN) {
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return logger.info({ message: `Stopped downloading ${playlistId}, websocket is closed` })
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}
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const id = video.url.match(/[?&]v=([^&]+)/)[1]
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const already = await prisma.videos.findFirst({
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where: {
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id: id
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}
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})
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if (already) {
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ws.send(`DATA - Already downloaded ${video.title}`)
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await prisma.videos.updateMany({
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where: {
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id: id
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},
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data: {
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playlist: playlistId
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}
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})
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continue
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}
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if (await redis.get(id)) {
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ws.send(`DATA - Someone is already downloading ${video.title}, skipping.`)
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continue
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}
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if (await redis.get(`blacklist:${id}`)) {
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ws.send(`DATA - ${video.title} is blacklisted from downloading, skipping`)
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continue
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}
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ws.send(`INFO - Downloading ${video.title}<br><br>`)
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await redis.set(id, 'downloading')
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const download = await ytdlp.downloadVideo('https://www.youtube.com' + video.url, ws, id)
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if (download.fail) {
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ws.send(`DATA - ${download.message}`)
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await redis.del(id)
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continue
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} else {
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const file = fs.readdirSync("./videos").find(f => f.includes(id))
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if (file) {
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try {
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ws.send(`DATA - Downloaded ${video.title}`)
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ws.send(`DATA - Uploading ${video.title}`)
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const videoUrl = await upload.uploadVideo(`./videos/${id}.mp4`)
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ws.send(`DATA - Uploaded ${video.title}`)
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fs.unlinkSync(`./videos/${id}.mp4`)
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await websocket.createDatabaseVideo(id, videoUrl, playlistId)
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ws.send(`DATA - Created video page for ${video.title}`)
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} catch (e) {
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ws.send(`DATA - Failed downloading video ${video.title}. Going to next video`)
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logger.error(e)
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}
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} else {
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ws.send(`DATA - Failed to find file for ${video.title}. Going to next video in the playlist`)
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}
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await redis.del(id)
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}
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}
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ws.send(`DONE - ${process.env.FRONTEND}/playlist?list=${playlistId}`)
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}
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}
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exports.channel = async (ws, req) => {
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logger.info({ message: `${req.path} ${JSON.stringify(req.query)}` })
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const channelId = await validate.validateChannelInput(req.query.url)
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if (channelId.fail) {
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ws.send(`ERROR - ${channelId.message}`)
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return ws.close()
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}
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let status = 'captcha'
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ws.send('DATA - This process is automatic. Your video will start archiving shortly.')
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ws.send('CAPTCHA - Solving a cryptographic challenge before downloading.')
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ws.on('message', async function(msg) {
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if (msg == 'alive') return
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if (status == 'captcha') {
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status = 'downloading'
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const confirm = await captcha.checkCaptcha(msg)
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if (confirm) startDownloading()
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else {
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ws.send('DATA - You little goofy goober tried to mess with the captcha...')
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ws.close()
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}
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} else {
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ws.send('DATA - You already sent captcha reply...')
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}
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})
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async function startDownloading() {
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const videos = await metadata.getChannelVideos(channelId)
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for (video of videos.slice(0, 5)) {
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if (ws.readyState !== ws.OPEN) {
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return logger.info({ message: `Stopped downloading ${channelId}, websocket is closed` })
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}
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const id = video.url.match(/[?&]v=([^&]+)/)[1]
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const already = await prisma.videos.findFirst({
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where: {
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id: id
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}
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})
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if (already) {
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ws.send(`DATA - Already downloaded ${video.title}`)
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continue
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}
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if (await redis.get(id)) {
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ws.send(`DATA - Someone is already downloading ${video.title}, skipping.`)
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continue
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}
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if (await redis.get(`blacklist:${id}`)) {
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ws.send(`DATA - ${video.title} is blacklisted from downloading, skipping`)
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continue
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}
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ws.send(`INFO - Downloading ${video.title}<br><br>`)
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await redis.set(id, 'downloading')
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const download = await ytdlp.downloadVideo('https://www.youtube.com' + video.url, ws, id)
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if (download.fail) {
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ws.send(`DATA - ${download.message}`)
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await redis.del(id)
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continue
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} else {
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const file = fs.readdirSync("./videos").find(f => f.includes(id))
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if (file) {
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try {
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ws.send(`DATA - Downloaded ${video.title}`)
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ws.send(`DATA - Uploading ${video.title}`)
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const videoUrl = await upload.uploadVideo(`./videos/${id}.mp4`)
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ws.send(`DATA - Uploaded ${video.title}`)
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fs.unlinkSync(`./videos/${id}.mp4`)
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await websocket.createDatabaseVideo(id, videoUrl)
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ws.send(`DATA - Created video page for ${video.title}`)
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} catch (e) {
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ws.send(`DATA - Failed downloading video ${video.title}. Going to next video`)
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logger.error(e)
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}
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} else {
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ws.send(`DATA - Failed to find file for ${video.title}. Going to next video`)
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}
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await redis.del(id)
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}
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}
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ws.send(`DONE - ${process.env.FRONTEND}/channel/${channelId}`)
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}
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}
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exports.addAutodownload = async (req, res) => {
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const confirm = await captcha.checkCaptcha(req.query.captcha)
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if (!confirm) return res.status(500).send('You little goofy goober tried to mess with the captcha...')
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const channelId = await validate.validateChannelInput(req.query.url)
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if (channelId.fail) {
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return res.status(500).send(channelId.message)
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}
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const already = await prisma.autodownload.findFirst({
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where: {
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channel: channelId
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}
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})
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if (already) {
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res.status(500).send(`This channel is already being automatically downloaded...`)
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} else {
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const ipHash = crypto.createHash('sha256').update(req.headers['x-forwarded-for'] || req.connection.remoteAddress).digest('hex')
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const isLimited = await limiter.limit(ipHash)
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if (isLimited) return res.status(420).send(`Hey! You have reached the limit of 5 queued auto-download channels per day. Sadly, hard drives don't grow on trees, so rate limits are necessary. The "Save Channel" feature has no limits, so feel free to use that.<br><br>
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Are you planning something awesome? Feel free to email me at admin[@]preservetube.com.`)
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await prisma.autodownload.create({
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data: {
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channel: channelId
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}
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})
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res.send('Perfect! Each time this channel uploads their videos will be downloaded')
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}
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} |