Add ability to import video with youtube-dl

2 files changed, 136 insertions, 3 deletions

diff --git a/server/lib/job-queue/handlers/video-import.ts b/server/lib/job-queue/handlers/video-import.ts
new file mode 100644
index 000000000..2f219e986
--- /dev/null
+++ b/server/lib/job-queue/handlers/video-import.ts
@@ -0,0 +1,129 @@
+import * as Bull from 'bull'
+import { logger } from '../../../helpers/logger'
+import { downloadYoutubeDLVideo } from '../../../helpers/youtube-dl'
+import { VideoImportModel } from '../../../models/video/video-import'
+import { VideoImportState } from '../../../../shared/models/videos'
+import { getDurationFromVideoFile, getVideoFileFPS, getVideoFileResolution } from '../../../helpers/ffmpeg-utils'
+import { extname, join } from 'path'
+import { VideoFileModel } from '../../../models/video/video-file'
+import { renamePromise, statPromise, unlinkPromise } from '../../../helpers/core-utils'
+import { CONFIG, sequelizeTypescript } from '../../../initializers'
+import { doRequestAndSaveToFile } from '../../../helpers/requests'
+import { VideoState } from '../../../../shared'
+import { JobQueue } from '../index'
+import { federateVideoIfNeeded } from '../../activitypub'
+
+export type VideoImportPayload = {
+  type: 'youtube-dl'
+  videoImportId: number
+  thumbnailUrl: string
+  downloadThumbnail: boolean
+  downloadPreview: boolean
+}
+
+async function processVideoImport (job: Bull.Job) {
+  const payload = job.data as VideoImportPayload
+  logger.info('Processing video import in job %d.', job.id)
+
+  const videoImport = await VideoImportModel.loadAndPopulateVideo(payload.videoImportId)
+  if (!videoImport) throw new Error('Cannot import video %s: the video import entry does not exist anymore.')
+
+  let tempVideoPath: string
+  try {
+    // Download video from youtubeDL
+    tempVideoPath = await downloadYoutubeDLVideo(videoImport.targetUrl)
+
+    // Get information about this video
+    const { videoFileResolution } = await getVideoFileResolution(tempVideoPath)
+    const fps = await getVideoFileFPS(tempVideoPath)
+    const stats = await statPromise(tempVideoPath)
+    const duration = await getDurationFromVideoFile(tempVideoPath)
+
+    // Create video file object in database
+    const videoFileData = {
+      extname: extname(tempVideoPath),
+      resolution: videoFileResolution,
+      size: stats.size,
+      fps,
+      videoId: videoImport.videoId
+    }
+    const videoFile = new VideoFileModel(videoFileData)
+
+    // Move file
+    const destination = join(CONFIG.STORAGE.VIDEOS_DIR, videoImport.Video.getVideoFilename(videoFile))
+    await renamePromise(tempVideoPath, destination)
+
+    // Process thumbnail
+    if (payload.downloadThumbnail) {
+      if (payload.thumbnailUrl) {
+        const destThumbnailPath = join(CONFIG.STORAGE.THUMBNAILS_DIR, videoImport.Video.getThumbnailName())
+        await doRequestAndSaveToFile({ method: 'GET', uri: payload.thumbnailUrl }, destThumbnailPath)
+      } else {
+        await videoImport.Video.createThumbnail(videoFile)
+      }
+    }
+
+    // Process preview
+    if (payload.downloadPreview) {
+      if (payload.thumbnailUrl) {
+        const destPreviewPath = join(CONFIG.STORAGE.PREVIEWS_DIR, videoImport.Video.getPreviewName())
+        await doRequestAndSaveToFile({ method: 'GET', uri: payload.thumbnailUrl }, destPreviewPath)
+      } else {
+        await videoImport.Video.createPreview(videoFile)
+      }
+    }
+
+    // Create torrent
+    await videoImport.Video.createTorrentAndSetInfoHash(videoFile)
+
+    const videoImportUpdated: VideoImportModel = await sequelizeTypescript.transaction(async t => {
+      await videoFile.save({ transaction: t })
+
+      // Update video DB object
+      videoImport.Video.duration = duration
+      videoImport.Video.state = CONFIG.TRANSCODING.ENABLED ? VideoState.TO_TRANSCODE : VideoState.PUBLISHED
+      const videoUpdated = await videoImport.Video.save({ transaction: t })
+
+      // Now we can federate the video
+      await federateVideoIfNeeded(videoImport.Video, true, t)
+
+      // Update video import object
+      videoImport.state = VideoImportState.SUCCESS
+      const videoImportUpdated = await videoImport.save({ transaction: t })
+
+      logger.info('Video %s imported.', videoImport.targetUrl)
+
+      videoImportUpdated.Video = videoUpdated
+      return videoImportUpdated
+    })
+
+    // Create transcoding jobs?
+    if (videoImportUpdated.Video.state === VideoState.TO_TRANSCODE) {
+      // Put uuid because we don't have id auto incremented for now
+      const dataInput = {
+        videoUUID: videoImportUpdated.Video.uuid,
+        isNewVideo: true
+      }
+
+      await JobQueue.Instance.createJob({ type: 'video-file', payload: dataInput })
+    }
+
+  } catch (err) {
+    try {
+      if (tempVideoPath) await unlinkPromise(tempVideoPath)
+    } catch (errUnlink) {
+      logger.error('Cannot cleanup files after a video import error.', { err: errUnlink })
+    }
+
+    videoImport.state = VideoImportState.FAILED
+    await videoImport.save()
+
+    throw err
+  }
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  processVideoImport
+}
diff --git a/server/lib/job-queue/job-queue.ts b/server/lib/job-queue/job-queue.ts
index 8ff0c169e..2e14867f2 100644
--- a/server/lib/job-queue/job-queue.ts
+++ b/server/lib/job-queue/job-queue.ts
@@ -9,6 +9,7 @@ import { ActivitypubHttpUnicastPayload, processActivityPubHttpUnicast } from './
 import { EmailPayload, processEmail } from './handlers/email'
 import { processVideoFile, processVideoFileImport, VideoFileImportPayload, VideoFilePayload } from './handlers/video-file'
 import { ActivitypubFollowPayload, processActivityPubFollow } from './handlers/activitypub-follow'
+import { processVideoImport, VideoImportPayload } from './handlers/video-import'
 
 type CreateJobArgument =
   { type: 'activitypub-http-broadcast', payload: ActivitypubHttpBroadcastPayload } |
@@ -17,7 +18,8 @@ type CreateJobArgument =
   { type: 'activitypub-follow', payload: ActivitypubFollowPayload } |
   { type: 'video-file-import', payload: VideoFileImportPayload } |
   { type: 'video-file', payload: VideoFilePayload } |
-  { type: 'email', payload: EmailPayload }
+  { type: 'email', payload: EmailPayload } |
+  { type: 'video-import', payload: VideoImportPayload }
 
 const handlers: { [ id in JobType ]: (job: Bull.Job) => Promise<any>} = {
   'activitypub-http-broadcast': processActivityPubHttpBroadcast,
@@ -26,7 +28,8 @@ const handlers: { [ id in JobType ]: (job: Bull.Job) => Promise<any>} = {
   'activitypub-follow': processActivityPubFollow,
   'video-file-import': processVideoFileImport,
   'video-file': processVideoFile,
-  'email': processEmail
+  'email': processEmail,
+  'video-import': processVideoImport
 }
 
 const jobsWithRequestTimeout: { [ id in JobType ]?: boolean } = {
@@ -43,7 +46,8 @@ const jobTypes: JobType[] = [
   'activitypub-http-unicast',
   'email',
   'video-file',
-  'video-file-import'
+  'video-file-import',
+  'video-import'
 ]
 
 class JobQueue {