Add tmp and redundancy directories

[github/Chocobozzz/PeerTube.git] / server / helpers / youtube-dl.ts

diff --git a/server/helpers/youtube-dl.ts b/server/helpers/youtube-dl.ts
index b0990ff68f1995f71b6514516a9c5f2b5cba3bc5..b74351b4219a72963c04cfe092c8081a5a7ad63f 100644 (file)
--- a/server/helpers/youtube-dl.ts
+++ b/server/helpers/youtube-dl.ts
@@ -1,8 +1,12 @@
 import { truncate } from 'lodash'
 import { CONSTRAINTS_FIELDS, VIDEO_CATEGORIES } from '../initializers'
 import { logger } from './logger'
-import { generateVideoTmpPath } from './utils'
-import { YoutubeDlUpdateScheduler } from '../lib/schedulers/youtube-dl-update-scheduler'
+import { generateVideoImportTmpPath } from './utils'
+import { join } from 'path'
+import { root } from './core-utils'
+import { ensureDir, writeFile, remove } from 'fs-extra'
+import * as request from 'request'
+import { createWriteStream } from 'fs'
 
 export type YoutubeDLInfo = {
   name?: string
@@ -14,13 +18,18 @@ export type YoutubeDLInfo = {
   thumbnailUrl?: string
 }
 
-function getYoutubeDLInfo (url: string): Promise<YoutubeDLInfo> {
+const processOptions = {
+  maxBuffer: 1024 * 1024 * 10 // 10MB
+}
+
+function getYoutubeDLInfo (url: string, opts?: string[]): Promise<YoutubeDLInfo> {
   return new Promise<YoutubeDLInfo>(async (res, rej) => {
-    const options = [ '-j', '--flat-playlist' ]
+    const args = opts || [ '-j', '--flat-playlist' ]
 
     const youtubeDL = await safeGetYoutubeDL()
-    youtubeDL.getInfo(url, options, (err, info) => {
+    youtubeDL.getInfo(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 = buildVideoInfo(normalizeObject(info))
       if (obj.name && obj.name.length < CONSTRAINTS_FIELDS.VIDEOS.NAME.min) obj.name += ' video'
@@ -30,8 +39,9 @@ function getYoutubeDLInfo (url: string): Promise<YoutubeDLInfo> {
   })
 }
 
-function downloadYoutubeDLVideo (url: string) {
-  const path = generateVideoTmpPath(url)
+function downloadYoutubeDLVideo (url: string, timeout: number) {
+  const path = generateVideoImportTmpPath(url)
+  let timer
 
   logger.info('Importing youtubeDL video %s', url)
 
@@ -39,22 +49,84 @@ function downloadYoutubeDLVideo (url: string) {
 
   return new Promise<string>(async (res, rej) => {
     const youtubeDL = await safeGetYoutubeDL()
-    youtubeDL.exec(url, options, async (err, output) => {
-      if (err) return rej(err)
+    youtubeDL.exec(url, options, processOptions, err => {
+      clearTimeout(timer)
+
+      if (err) {
+        remove(path)
+          .catch(err => logger.error('Cannot delete path on YoutubeDL error.', { err }))
+
+        return rej(err)
+      }
 
       return res(path)
     })
-  })
-}
 
-// ---------------------------------------------------------------------------
+    timer = setTimeout(async () => {
+      await remove(path)
 
-export {
-  downloadYoutubeDLVideo,
-  getYoutubeDLInfo
+      return rej(new Error('YoutubeDL download timeout.'))
+    }, timeout)
+  })
 }
 
-// ---------------------------------------------------------------------------
+// Thanks: https://github.com/przemyslawpluta/node-youtube-dl/blob/master/lib/downloader.js
+// We rewrote it to avoid sync calls
+async function 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 = 'https://yt-dl.org/downloads/latest/youtube-dl'
+
+  await ensureDir(binDirectory)
+
+  return new Promise(res => {
+    request.get(url, { followRedirect: false }, (err, result) => {
+      if (err) {
+        logger.error('Cannot update youtube-dl.', { err })
+        return res()
+      }
+
+      if (result.statusCode !== 302) {
+        logger.error('youtube-dl update error: did not get redirect for the latest version link. Status %d', result.statusCode)
+        return res()
+      }
+
+      const url = result.headers.location
+      const downloadFile = request.get(url)
+      const newVersion = /yt-dl\.org\/downloads\/(\d{4}\.\d\d\.\d\d(\.\d)?)\/youtube-dl/.exec(url)[ 1 ]
+
+      downloadFile.on('response', result => {
+        if (result.statusCode !== 200) {
+          logger.error('Cannot update youtube-dl: new version response is not 200, it\'s %d.', result.statusCode)
+          return res()
+        }
+
+        downloadFile.pipe(createWriteStream(bin, { mode: 493 }))
+      })
+
+      downloadFile.on('error', err => {
+        logger.error('youtube-dl update error.', { err })
+        return res()
+      })
+
+      downloadFile.on('end', () => {
+        const details = JSON.stringify({ version: newVersion, path: bin, exec: 'youtube-dl' })
+        writeFile(detailsPath, details, { encoding: 'utf8' }, err => {
+          if (err) {
+            logger.error('youtube-dl update error: cannot write details.', { err })
+            return res()
+          }
+
+          logger.info('youtube-dl updated to version %s.', newVersion)
+          return res()
+        })
+      })
+    })
+  })
+}
 
 async function safeGetYoutubeDL () {
   let youtubeDL
@@ -63,13 +135,24 @@ async function safeGetYoutubeDL () {
     youtubeDL = require('youtube-dl')
   } catch (e) {
     // Download binary
-    await YoutubeDlUpdateScheduler.Instance.execute()
+    await updateYoutubeDLBinary()
     youtubeDL = require('youtube-dl')
   }
 
   return youtubeDL
 }
 
+// ---------------------------------------------------------------------------
+
+export {
+  updateYoutubeDLBinary,
+  downloadYoutubeDLVideo,
+  getYoutubeDLInfo,
+  safeGetYoutubeDL
+}
+
+// ---------------------------------------------------------------------------
+
 function normalizeObject (obj: any) {
   const newObj: any = {}