--- /dev/null
+import { move, pathExists, readdir, remove } from 'fs-extra'
+import { dirname, join } from 'path'
+import { CONFIG } from '@server/initializers/config'
+import { isVideoFileExtnameValid } from '../custom-validators/videos'
+import { logger, loggerTagsFactory } from '../logger'
+import { generateVideoImportTmpPath } from '../utils'
+import { YoutubeDLCLI } from './youtube-dl-cli'
+import { YoutubeDLInfo, YoutubeDLInfoBuilder } from './youtube-dl-info-builder'
+
+const lTags = loggerTagsFactory('youtube-dl')
+
+export type YoutubeDLSubs = {
+ language: string
+ filename: string
+ path: string
+}[]
+
+const processOptions = {
+ maxBuffer: 1024 * 1024 * 10 // 10MB
+}
+
+class YoutubeDLWrapper {
+
+ constructor (private readonly url: string = '', private readonly enabledResolutions: number[] = []) {
+
+ }
+
+ async getInfoForDownload (youtubeDLArgs: string[] = []): Promise<YoutubeDLInfo> {
+ const youtubeDL = await YoutubeDLCLI.safeGet()
+
+ const info = await youtubeDL.getInfo({
+ url: this.url,
+ format: YoutubeDLCLI.getYoutubeDLVideoFormat(this.enabledResolutions),
+ additionalYoutubeDLArgs: youtubeDLArgs,
+ processOptions
+ })
+
+ if (info.is_live === true) throw new Error('Cannot download a live streaming.')
+
+ const infoBuilder = new YoutubeDLInfoBuilder(info)
+
+ return infoBuilder.getInfo()
+ }
+
+ async getSubtitles (): Promise<YoutubeDLSubs> {
+ const cwd = CONFIG.STORAGE.TMP_DIR
+
+ const youtubeDL = await YoutubeDLCLI.safeGet()
+
+ const files = await youtubeDL.getSubs({ url: this.url, format: 'vtt', processOptions: { cwd } })
+ if (!files) return []
+
+ logger.debug('Get subtitles from youtube dl.', { url: this.url, files, ...lTags() })
+
+ 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 subtitles
+ }
+
+ async downloadVideo (fileExt: string, timeout: number): Promise<string> {
+ // Leave empty the extension, youtube-dl will add it
+ const pathWithoutExtension = generateVideoImportTmpPath(this.url, '')
+
+ let timer: NodeJS.Timeout
+
+ logger.info('Importing youtubeDL video %s to %s', this.url, pathWithoutExtension, lTags())
+
+ const youtubeDL = await YoutubeDLCLI.safeGet()
+
+ const timeoutPromise = new Promise<string>((_, rej) => {
+ timer = setTimeout(() => rej(new Error('YoutubeDL download timeout.')), timeout)
+ })
+
+ const downloadPromise = youtubeDL.download({
+ url: this.url,
+ format: YoutubeDLCLI.getYoutubeDLVideoFormat(this.enabledResolutions),
+ output: pathWithoutExtension,
+ processOptions
+ }).then(() => clearTimeout(timer))
+ .then(async () => {
+ // 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')
+ }
+
+ return this.guessVideoPathWithExtension(pathWithoutExtension, fileExt)
+ })
+
+ return Promise.race([ downloadPromise, timeoutPromise ])
+ .catch(async err => {
+ const path = await this.guessVideoPathWithExtension(pathWithoutExtension, fileExt)
+
+ remove(path)
+ .catch(err => logger.error('Cannot remove file in youtubeDL timeout.', { err, ...lTags() }))
+
+ throw err
+ })
+ }
+
+ private async guessVideoPathWithExtension (tmpPath: string, sourceExt: string) {
+ if (!isVideoFileExtnameValid(sourceExt)) {
+ throw new Error('Invalid video extension ' + sourceExt)
+ }
+
+ const extensions = [ sourceExt, '.mp4', '.mkv', '.webm' ]
+
+ for (const extension of extensions) {
+ const path = tmpPath + extension
+
+ if (await pathExists(path)) return path
+ }
+
+ const directoryContent = await readdir(dirname(tmpPath))
+
+ throw new Error(`Cannot guess path of ${tmpPath}. Directory content: ${directoryContent.join(', ')}`)
+ }
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+ YoutubeDLWrapper
+}