-import * as youtubeDL from 'youtube-dl'
-import { truncate } from 'lodash'
-import { CONFIG, CONSTRAINTS_FIELDS, VIDEO_CATEGORIES } from '../initializers'
+import { createWriteStream } from 'fs'
+import { ensureDir, move, pathExists, remove, writeFile } from 'fs-extra'
+import got from 'got'
import { join } from 'path'
-import * as crypto from 'crypto'
+import { CONFIG } from '@server/initializers/config'
+import { HttpStatusCode } from '../../shared/core-utils/miscs/http-error-codes'
+import { VideoResolution } from '../../shared/models/videos'
+import { CONSTRAINTS_FIELDS, VIDEO_CATEGORIES, VIDEO_LANGUAGES, VIDEO_LICENCES } from '../initializers/constants'
+import { peertubeTruncate, pipelinePromise, root } from './core-utils'
+import { isVideoFileExtnameValid } from './custom-validators/videos'
import { logger } from './logger'
+import { generateVideoImportTmpPath } from './utils'
export type YoutubeDLInfo = {
- name: string
- description: string
- category: number
- licence: number
- nsfw: boolean
- tags: string[]
- thumbnailUrl: string
+ name?: string
+ description?: string
+ category?: number
+ language?: string
+ licence?: number
+ nsfw?: boolean
+ tags?: string[]
+ thumbnailUrl?: string
+ ext?: string
+ originallyPublishedAt?: Date
}
-function getYoutubeDLInfo (url: string): Promise<YoutubeDLInfo> {
- return new Promise<YoutubeDLInfo>((res, rej) => {
- const options = [ '-j', '--flat-playlist' ]
+export type YoutubeDLSubs = {
+ language: string
+ filename: string
+ path: string
+}[]
- youtubeDL.getInfo(url, options, (err, info) => {
- if (err) return rej(err)
+const processOptions = {
+ maxBuffer: 1024 * 1024 * 10 // 10MB
+}
+
+class YoutubeDL {
+
+ constructor (private readonly url: string = '', private readonly enabledResolutions: number[] = []) {
+
+ }
+
+ getYoutubeDLInfo (opts?: string[]): Promise<YoutubeDLInfo> {
+ return new Promise<YoutubeDLInfo>((res, rej) => {
+ let args = opts || [ '-j', '--flat-playlist' ]
- const obj = normalizeObject(info)
+ if (CONFIG.IMPORT.VIDEOS.HTTP.FORCE_IPV4) {
+ args.push('--force-ipv4')
+ }
- return res(buildVideoInfo(obj))
+ args = this.wrapWithProxyOptions(args)
+ args = [ '-f', this.getYoutubeDLVideoFormat() ].concat(args)
+
+ YoutubeDL.safeGetYoutubeDL()
+ .then(youtubeDL => {
+ youtubeDL.getInfo(this.url, args, processOptions, (err, info) => {
+ if (err) return rej(err)
+ if (info.is_live === true) return rej(new Error('Cannot download a live streaming.'))
+
+ const obj = this.buildVideoInfo(this.normalizeObject(info))
+ if (obj.name && obj.name.length < CONSTRAINTS_FIELDS.VIDEOS.NAME.min) obj.name += ' video'
+
+ return res(obj)
+ })
+ })
+ .catch(err => rej(err))
})
- })
-}
+ }
-function downloadYoutubeDLVideo (url: string) {
- const hash = crypto.createHash('sha256').update(url).digest('hex')
- const path = join(CONFIG.STORAGE.VIDEOS_DIR, hash + '-import.mp4')
+ getYoutubeDLSubs (opts?: object): Promise<YoutubeDLSubs> {
+ return new Promise<YoutubeDLSubs>((res, rej) => {
+ const cwd = CONFIG.STORAGE.TMP_DIR
+ const options = opts || { all: true, format: 'vtt', cwd }
+
+ YoutubeDL.safeGetYoutubeDL()
+ .then(youtubeDL => {
+ youtubeDL.getSubs(this.url, options, (err, files) => {
+ if (err) return rej(err)
+ if (!files) return []
+
+ logger.debug('Get subtitles from youtube dl.', { url: this.url, files })
+
+ const subtitles = files.reduce((acc, filename) => {
+ const matched = filename.match(/\.([a-z]{2})(-[a-z]+)?\.(vtt|ttml)/i)
+ if (!matched || !matched[1]) return acc
+
+ return [
+ ...acc,
+ {
+ language: matched[1],
+ path: join(cwd, filename),
+ filename
+ }
+ ]
+ }, [])
+
+ return res(subtitles)
+ })
+ })
+ .catch(err => rej(err))
+ })
+ }
+
+ getYoutubeDLVideoFormat () {
+ /**
+ * list of format selectors in order or preference
+ * see https://github.com/ytdl-org/youtube-dl#format-selection
+ *
+ * case #1 asks for a mp4 using h264 (avc1) and the exact resolution in the hope
+ * of being able to do a "quick-transcode"
+ * case #2 is the first fallback. No "quick-transcode" means we can get anything else (like vp9)
+ * case #3 is the resolution-degraded equivalent of #1, and already a pretty safe fallback
+ *
+ * in any case we avoid AV1, see https://github.com/Chocobozzz/PeerTube/issues/3499
+ **/
+ const resolution = this.enabledResolutions.length === 0
+ ? VideoResolution.H_720P
+ : Math.max(...this.enabledResolutions)
+
+ return [
+ `bestvideo[vcodec^=avc1][height=${resolution}]+bestaudio[ext=m4a]`, // case #1
+ `bestvideo[vcodec!*=av01][vcodec!*=vp9.2][height=${resolution}]+bestaudio`, // case #2
+ `bestvideo[vcodec^=avc1][height<=${resolution}]+bestaudio[ext=m4a]`, // case #3
+ `bestvideo[vcodec!*=av01][vcodec!*=vp9.2]+bestaudio`,
+ 'best[vcodec!*=av01][vcodec!*=vp9.2]', // case fallback for known formats
+ 'best' // Ultimate fallback
+ ].join('/')
+ }
+
+ downloadYoutubeDLVideo (fileExt: string, timeout: number) {
+ // Leave empty the extension, youtube-dl will add it
+ const pathWithoutExtension = generateVideoImportTmpPath(this.url, '')
- logger.info('Importing video %s', url)
+ let timer
- const options = [ '-f', 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best', '-o', path ]
+ logger.info('Importing youtubeDL video %s to %s', this.url, pathWithoutExtension)
- return new Promise<string>((res, rej) => {
- youtubeDL.exec(url, options, async (err, output) => {
- if (err) return rej(err)
+ let options = [ '-f', this.getYoutubeDLVideoFormat(), '-o', pathWithoutExtension ]
+ options = this.wrapWithProxyOptions(options)
- return res(path)
+ if (process.env.FFMPEG_PATH) {
+ options = options.concat([ '--ffmpeg-location', process.env.FFMPEG_PATH ])
+ }
+
+ logger.debug('YoutubeDL options for %s.', this.url, { options })
+
+ return new Promise<string>((res, rej) => {
+ YoutubeDL.safeGetYoutubeDL()
+ .then(youtubeDL => {
+ youtubeDL.exec(this.url, options, processOptions, async err => {
+ clearTimeout(timer)
+
+ try {
+ // If youtube-dl did not guess an extension for our file, just use .mp4 as default
+ if (await pathExists(pathWithoutExtension)) {
+ await move(pathWithoutExtension, pathWithoutExtension + '.mp4')
+ }
+
+ const path = await this.guessVideoPathWithExtension(pathWithoutExtension, fileExt)
+
+ if (err) {
+ remove(path)
+ .catch(err => logger.error('Cannot delete path on YoutubeDL error.', { err }))
+
+ return rej(err)
+ }
+
+ return res(path)
+ } catch (err) {
+ return rej(err)
+ }
+ })
+
+ timer = setTimeout(() => {
+ const err = new Error('YoutubeDL download timeout.')
+
+ this.guessVideoPathWithExtension(pathWithoutExtension, fileExt)
+ .then(path => remove(path))
+ .finally(() => rej(err))
+ .catch(err => {
+ logger.error('Cannot remove file in youtubeDL timeout.', { err })
+ return rej(err)
+ })
+ }, timeout)
+ })
+ .catch(err => rej(err))
})
- })
-}
+ }
-// ---------------------------------------------------------------------------
+ buildOriginallyPublishedAt (obj: any) {
+ let originallyPublishedAt: Date = null
-export {
- downloadYoutubeDLVideo,
- getYoutubeDLInfo
-}
+ const uploadDateMatcher = /^(\d{4})(\d{2})(\d{2})$/.exec(obj.upload_date)
+ if (uploadDateMatcher) {
+ originallyPublishedAt = new Date()
+ originallyPublishedAt.setHours(0, 0, 0, 0)
-// ---------------------------------------------------------------------------
+ const year = parseInt(uploadDateMatcher[1], 10)
+ // Month starts from 0
+ const month = parseInt(uploadDateMatcher[2], 10) - 1
+ const day = parseInt(uploadDateMatcher[3], 10)
-function normalizeObject (obj: any) {
- const newObj: any = {}
+ originallyPublishedAt.setFullYear(year, month, day)
+ }
- for (const key of Object.keys(obj)) {
- // Deprecated key
- if (key === 'resolution') continue
+ return originallyPublishedAt
+ }
- const value = obj[key]
+ private async guessVideoPathWithExtension (tmpPath: string, sourceExt: string) {
+ if (!isVideoFileExtnameValid(sourceExt)) {
+ throw new Error('Invalid video extension ' + sourceExt)
+ }
- if (typeof value === 'string') {
- newObj[key] = value.normalize()
- } else {
- newObj[key] = value
+ const extensions = [ sourceExt, '.mp4', '.mkv', '.webm' ]
+
+ for (const extension of extensions) {
+ const path = tmpPath + extension
+
+ if (await pathExists(path)) return path
}
+
+ throw new Error('Cannot guess path of ' + tmpPath)
}
- return newObj
-}
+ private normalizeObject (obj: any) {
+ const newObj: any = {}
+
+ for (const key of Object.keys(obj)) {
+ // Deprecated key
+ if (key === 'resolution') continue
-function buildVideoInfo (obj: any) {
- return {
- name: titleTruncation(obj.title),
- description: descriptionTruncation(obj.description),
- category: getCategory(obj.categories),
- licence: getLicence(obj.license),
- nsfw: isNSFW(obj),
- tags: getTags(obj.tags),
- thumbnailUrl: obj.thumbnail || undefined
+ const value = obj[key]
+
+ if (typeof value === 'string') {
+ newObj[key] = value.normalize()
+ } else {
+ newObj[key] = value
+ }
+ }
+
+ return newObj
}
-}
-function titleTruncation (title: string) {
- return truncate(title, {
- 'length': CONSTRAINTS_FIELDS.VIDEOS.NAME.max,
- 'separator': /,? +/,
- 'omission': ' […]'
- })
-}
+ private buildVideoInfo (obj: any): YoutubeDLInfo {
+ return {
+ name: this.titleTruncation(obj.title),
+ description: this.descriptionTruncation(obj.description),
+ category: this.getCategory(obj.categories),
+ licence: this.getLicence(obj.license),
+ language: this.getLanguage(obj.language),
+ nsfw: this.isNSFW(obj),
+ tags: this.getTags(obj.tags),
+ thumbnailUrl: obj.thumbnail || undefined,
+ originallyPublishedAt: this.buildOriginallyPublishedAt(obj),
+ ext: obj.ext
+ }
+ }
-function descriptionTruncation (description: string) {
- if (!description || description.length < CONSTRAINTS_FIELDS.VIDEOS.DESCRIPTION.min) return undefined
+ private titleTruncation (title: string) {
+ return peertubeTruncate(title, {
+ length: CONSTRAINTS_FIELDS.VIDEOS.NAME.max,
+ separator: /,? +/,
+ omission: ' […]'
+ })
+ }
- return truncate(description, {
- 'length': CONSTRAINTS_FIELDS.VIDEOS.DESCRIPTION.max,
- 'separator': /,? +/,
- 'omission': ' […]'
- })
-}
+ private descriptionTruncation (description: string) {
+ if (!description || description.length < CONSTRAINTS_FIELDS.VIDEOS.DESCRIPTION.min) return undefined
-function isNSFW (info: any) {
- return info.age_limit && info.age_limit >= 16
-}
+ return peertubeTruncate(description, {
+ length: CONSTRAINTS_FIELDS.VIDEOS.DESCRIPTION.max,
+ separator: /,? +/,
+ omission: ' […]'
+ })
+ }
-function getTags (tags: any) {
- if (Array.isArray(tags) === false) return []
+ private isNSFW (info: any) {
+ return info.age_limit && info.age_limit >= 16
+ }
- return tags
- .filter(t => t.length < CONSTRAINTS_FIELDS.VIDEOS.TAG.max && t.length > CONSTRAINTS_FIELDS.VIDEOS.TAG.min)
- .map(t => t.normalize())
- .slice(0, 5)
-}
+ private getTags (tags: any) {
+ if (Array.isArray(tags) === false) return []
-function getLicence (licence: string) {
- if (!licence) return undefined
+ return tags
+ .filter(t => t.length < CONSTRAINTS_FIELDS.VIDEOS.TAG.max && t.length > CONSTRAINTS_FIELDS.VIDEOS.TAG.min)
+ .map(t => t.normalize())
+ .slice(0, 5)
+ }
- if (licence.indexOf('Creative Commons Attribution') !== -1) return 1
+ private getLicence (licence: string) {
+ if (!licence) return undefined
- return undefined
-}
+ if (licence.includes('Creative Commons Attribution')) return 1
+
+ for (const key of Object.keys(VIDEO_LICENCES)) {
+ const peertubeLicence = VIDEO_LICENCES[key]
+ if (peertubeLicence.toLowerCase() === licence.toLowerCase()) return parseInt(key, 10)
+ }
+
+ return undefined
+ }
-function getCategory (categories: string[]) {
- if (!categories) return undefined
+ private getCategory (categories: string[]) {
+ if (!categories) return undefined
- const categoryString = categories[0]
- if (!categoryString || typeof categoryString !== 'string') return undefined
+ const categoryString = categories[0]
+ if (!categoryString || typeof categoryString !== 'string') return undefined
- if (categoryString === 'News & Politics') return 11
+ if (categoryString === 'News & Politics') return 11
- for (const key of Object.keys(VIDEO_CATEGORIES)) {
- const category = VIDEO_CATEGORIES[key]
- if (categoryString.toLowerCase() === category.toLowerCase()) return parseInt(key, 10)
+ for (const key of Object.keys(VIDEO_CATEGORIES)) {
+ const category = VIDEO_CATEGORIES[key]
+ if (categoryString.toLowerCase() === category.toLowerCase()) return parseInt(key, 10)
+ }
+
+ return undefined
+ }
+
+ private getLanguage (language: string) {
+ return VIDEO_LANGUAGES[language] ? language : undefined
+ }
+
+ private wrapWithProxyOptions (options: string[]) {
+ if (CONFIG.IMPORT.VIDEOS.HTTP.PROXY.ENABLED) {
+ logger.debug('Using proxy for YoutubeDL')
+
+ return [ '--proxy', CONFIG.IMPORT.VIDEOS.HTTP.PROXY.URL ].concat(options)
+ }
+
+ return options
}
- return undefined
+ // Thanks: https://github.com/przemyslawpluta/node-youtube-dl/blob/master/lib/downloader.js
+ // We rewrote it to avoid sync calls
+ static async updateYoutubeDLBinary () {
+ logger.info('Updating youtubeDL binary.')
+
+ const binDirectory = join(root(), 'node_modules', 'youtube-dl', 'bin')
+ const bin = join(binDirectory, 'youtube-dl')
+ const detailsPath = join(binDirectory, 'details')
+ const url = process.env.YOUTUBE_DL_DOWNLOAD_HOST || 'https://yt-dl.org/downloads/latest/youtube-dl'
+
+ await ensureDir(binDirectory)
+
+ try {
+ const result = await got(url, { followRedirect: false })
+
+ if (result.statusCode !== HttpStatusCode.FOUND_302) {
+ logger.error('youtube-dl update error: did not get redirect for the latest version link. Status %d', result.statusCode)
+ return
+ }
+
+ const newUrl = result.headers.location
+ const newVersion = /yt-dl\.org\/downloads\/(\d{4}\.\d\d\.\d\d(\.\d)?)\/youtube-dl/.exec(newUrl)[1]
+
+ const downloadFileStream = got.stream(newUrl)
+ const writeStream = createWriteStream(bin, { mode: 493 })
+
+ await pipelinePromise(
+ downloadFileStream,
+ writeStream
+ )
+
+ const details = JSON.stringify({ version: newVersion, path: bin, exec: 'youtube-dl' })
+ await writeFile(detailsPath, details, { encoding: 'utf8' })
+
+ logger.info('youtube-dl updated to version %s.', newVersion)
+ } catch (err) {
+ logger.error('Cannot update youtube-dl.', { err })
+ }
+ }
+
+ static async safeGetYoutubeDL () {
+ let youtubeDL
+
+ try {
+ youtubeDL = require('youtube-dl')
+ } catch (e) {
+ // Download binary
+ await this.updateYoutubeDLBinary()
+ youtubeDL = require('youtube-dl')
+ }
+
+ return youtubeDL
+ }
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+ YoutubeDL
}