]> git.immae.eu Git - github/Chocobozzz/PeerTube.git/blobdiff - server/lib/activitypub/videos.ts
Add ability to search a video with an URL
[github/Chocobozzz/PeerTube.git] / server / lib / activitypub / videos.ts
index 9442448932c27e3071de9edf7db2d79a4dcb5889..fac1d3fc74b67d68e604a318784a51362a8b38f8 100644 (file)
@@ -1,21 +1,66 @@
+import * as Bluebird from 'bluebird'
+import * as sequelize from 'sequelize'
+import * as magnetUtil from 'magnet-uri'
 import { join } from 'path'
 import * as request from 'request'
-import { ActivityIconObject } from '../../../shared/index'
+import { ActivityIconObject, VideoState } from '../../../shared/index'
+import { VideoTorrentObject } from '../../../shared/models/activitypub/objects'
+import { VideoPrivacy, VideoRateType } from '../../../shared/models/videos'
+import { sanitizeAndCheckVideoTorrentObject } from '../../helpers/custom-validators/activitypub/videos'
+import { isVideoFileInfoHashValid } from '../../helpers/custom-validators/videos'
+import { retryTransactionWrapper } from '../../helpers/database-utils'
+import { logger } from '../../helpers/logger'
 import { doRequest, doRequestAndSaveToFile } from '../../helpers/requests'
-import { CONFIG, REMOTE_SCHEME, STATIC_PATHS } from '../../initializers/constants'
-import { VideoInstance } from '../../models/video/video-interface'
+import { ACTIVITY_PUB, CONFIG, CRAWL_REQUEST_CONCURRENCY, REMOTE_SCHEME, sequelizeTypescript, VIDEO_MIMETYPE_EXT } from '../../initializers'
+import { AccountVideoRateModel } from '../../models/account/account-video-rate'
+import { ActorModel } from '../../models/activitypub/actor'
+import { TagModel } from '../../models/video/tag'
+import { VideoModel } from '../../models/video/video'
+import { VideoChannelModel } from '../../models/video/video-channel'
+import { VideoFileModel } from '../../models/video/video-file'
+import { VideoShareModel } from '../../models/video/video-share'
+import { getOrCreateActorAndServerAndModel } from './actor'
+import { addVideoComments } from './video-comments'
+import { crawlCollectionPage } from './crawl'
+import { sendCreateVideo, sendUpdateVideo } from './send'
+import { shareVideoByServerAndChannel } from './index'
+import { isArray } from '../../helpers/custom-validators/misc'
+import { VideoCaptionModel } from '../../models/video/video-caption'
+import { JobQueue } from '../job-queue'
+import { ActivitypubHttpFetcherPayload } from '../job-queue/handlers/activitypub-http-fetcher'
 
-function fetchRemoteVideoPreview (video: VideoInstance) {
-  // FIXME: use url
-  const host = video.VideoChannel.Account.Server.host
-  const path = join(STATIC_PATHS.PREVIEWS, video.getPreviewName())
+async function federateVideoIfNeeded (video: VideoModel, isNewVideo: boolean, transaction?: sequelize.Transaction) {
+  // If the video is not private and published, we federate it
+  if (video.privacy !== VideoPrivacy.PRIVATE && video.state === VideoState.PUBLISHED) {
+    // Fetch more attributes that we will need to serialize in AP object
+    if (isArray(video.VideoCaptions) === false) {
+      video.VideoCaptions = await video.$get('VideoCaptions', {
+        attributes: [ 'language' ],
+        transaction
+      }) as VideoCaptionModel[]
+    }
 
-  return request.get(REMOTE_SCHEME.HTTP + '://' + host + path)
+    if (isNewVideo) {
+      // Now we'll add the video's meta data to our followers
+      await sendCreateVideo(video, transaction)
+      await shareVideoByServerAndChannel(video, transaction)
+    } else {
+      await sendUpdateVideo(video, transaction)
+    }
+  }
+}
+
+function fetchRemoteVideoStaticFile (video: VideoModel, path: string, reject: Function) {
+  const host = video.VideoChannel.Account.Actor.Server.host
+
+  // We need to provide a callback, if no we could have an uncaught exception
+  return request.get(REMOTE_SCHEME.HTTP + '://' + host + path, err => {
+    if (err) reject(err)
+  })
 }
 
-async function fetchRemoteVideoDescription (video: VideoInstance) {
-  // FIXME: use url
-  const host = video.VideoChannel.Account.Server.host
+async function fetchRemoteVideoDescription (video: VideoModel) {
+  const host = video.VideoChannel.Account.Actor.Server.host
   const path = video.getDescriptionPath()
   const options = {
     uri: REMOTE_SCHEME.HTTP + '://' + host + path,
@@ -26,7 +71,7 @@ async function fetchRemoteVideoDescription (video: VideoInstance) {
   return body.description ? body.description : ''
 }
 
-function generateThumbnailFromUrl (video: VideoInstance, icon: ActivityIconObject) {
+function generateThumbnailFromUrl (video: VideoModel, icon: ActivityIconObject) {
   const thumbnailName = video.getThumbnailName()
   const thumbnailPath = join(CONFIG.STORAGE.THUMBNAILS_DIR, thumbnailName)
 
@@ -37,8 +82,310 @@ function generateThumbnailFromUrl (video: VideoInstance, icon: ActivityIconObjec
   return doRequestAndSaveToFile(options, thumbnailPath)
 }
 
+async function videoActivityObjectToDBAttributes (
+  videoChannel: VideoChannelModel,
+  videoObject: VideoTorrentObject,
+  to: string[] = []
+) {
+  const privacy = to.indexOf(ACTIVITY_PUB.PUBLIC) !== -1 ? VideoPrivacy.PUBLIC : VideoPrivacy.UNLISTED
+  const duration = videoObject.duration.replace(/[^\d]+/, '')
+
+  let language: string | undefined
+  if (videoObject.language) {
+    language = videoObject.language.identifier
+  }
+
+  let category: number | undefined
+  if (videoObject.category) {
+    category = parseInt(videoObject.category.identifier, 10)
+  }
+
+  let licence: number | undefined
+  if (videoObject.licence) {
+    licence = parseInt(videoObject.licence.identifier, 10)
+  }
+
+  const description = videoObject.content || null
+  const support = videoObject.support || null
+
+  return {
+    name: videoObject.name,
+    uuid: videoObject.uuid,
+    url: videoObject.id,
+    category,
+    licence,
+    language,
+    description,
+    support,
+    nsfw: videoObject.sensitive,
+    commentsEnabled: videoObject.commentsEnabled,
+    waitTranscoding: videoObject.waitTranscoding,
+    state: videoObject.state,
+    channelId: videoChannel.id,
+    duration: parseInt(duration, 10),
+    createdAt: new Date(videoObject.published),
+    publishedAt: new Date(videoObject.published),
+    // FIXME: updatedAt does not seems to be considered by Sequelize
+    updatedAt: new Date(videoObject.updated),
+    views: videoObject.views,
+    likes: 0,
+    dislikes: 0,
+    remote: true,
+    privacy
+  }
+}
+
+function videoFileActivityUrlToDBAttributes (videoCreated: VideoModel, videoObject: VideoTorrentObject) {
+  const mimeTypes = Object.keys(VIDEO_MIMETYPE_EXT)
+  const fileUrls = videoObject.url.filter(u => {
+    return mimeTypes.indexOf(u.mimeType) !== -1 && u.mimeType.startsWith('video/')
+  })
+
+  if (fileUrls.length === 0) {
+    throw new Error('Cannot find video files for ' + videoCreated.url)
+  }
+
+  const attributes: VideoFileModel[] = []
+  for (const fileUrl of fileUrls) {
+    // Fetch associated magnet uri
+    const magnet = videoObject.url.find(u => {
+      return u.mimeType === 'application/x-bittorrent;x-scheme-handler/magnet' && u.height === fileUrl.height
+    })
+
+    if (!magnet) throw new Error('Cannot find associated magnet uri for file ' + fileUrl.href)
+
+    const parsed = magnetUtil.decode(magnet.href)
+    if (!parsed || isVideoFileInfoHashValid(parsed.infoHash) === false) {
+      throw new Error('Cannot parse magnet URI ' + magnet.href)
+    }
+
+    const attribute = {
+      extname: VIDEO_MIMETYPE_EXT[ fileUrl.mimeType ],
+      infoHash: parsed.infoHash,
+      resolution: fileUrl.height,
+      size: fileUrl.size,
+      videoId: videoCreated.id,
+      fps: fileUrl.fps
+    } as VideoFileModel
+    attributes.push(attribute)
+  }
+
+  return attributes
+}
+
+function getOrCreateVideoChannel (videoObject: VideoTorrentObject) {
+  const channel = videoObject.attributedTo.find(a => a.type === 'Group')
+  if (!channel) throw new Error('Cannot find associated video channel to video ' + videoObject.url)
+
+  return getOrCreateActorAndServerAndModel(channel.id)
+}
+
+async function getOrCreateVideo (videoObject: VideoTorrentObject, channelActor: ActorModel, waitThumbnail = false) {
+  logger.debug('Adding remote video %s.', videoObject.id)
+
+  const videoCreated: VideoModel = await sequelizeTypescript.transaction(async t => {
+    const sequelizeOptions = {
+      transaction: t
+    }
+    const videoFromDatabase = await VideoModel.loadByUUIDOrURLAndPopulateAccount(videoObject.uuid, videoObject.id, t)
+    if (videoFromDatabase) return videoFromDatabase
+
+    const videoData = await videoActivityObjectToDBAttributes(channelActor.VideoChannel, videoObject, videoObject.to)
+    const video = VideoModel.build(videoData)
+
+    const videoCreated = await video.save(sequelizeOptions)
+
+    // Process files
+    const videoFileAttributes = videoFileActivityUrlToDBAttributes(videoCreated, videoObject)
+    if (videoFileAttributes.length === 0) {
+      throw new Error('Cannot find valid files for video %s ' + videoObject.url)
+    }
+
+    const videoFilePromises = videoFileAttributes.map(f => VideoFileModel.create(f, { transaction: t }))
+    await Promise.all(videoFilePromises)
+
+    // Process tags
+    const tags = videoObject.tag.map(t => t.name)
+    const tagInstances = await TagModel.findOrCreateTags(tags, t)
+    await videoCreated.$set('Tags', tagInstances, sequelizeOptions)
+
+    // Process captions
+    const videoCaptionsPromises = videoObject.subtitleLanguage.map(c => {
+      return VideoCaptionModel.insertOrReplaceLanguage(videoCreated.id, c.identifier, t)
+    })
+    await Promise.all(videoCaptionsPromises)
+
+    logger.info('Remote video with uuid %s inserted.', videoObject.uuid)
+
+    videoCreated.VideoChannel = channelActor.VideoChannel
+    return videoCreated
+  })
+
+  const p = generateThumbnailFromUrl(videoCreated, videoObject.icon)
+    .catch(err => logger.warn('Cannot generate thumbnail of %s.', videoObject.id, { err }))
+
+  if (waitThumbnail === true) await p
+
+  return videoCreated
+}
+
+type SyncParam = {
+  likes: boolean,
+  dislikes: boolean,
+  shares: boolean,
+  comments: boolean,
+  thumbnail: boolean
+}
+async function getOrCreateAccountAndVideoAndChannel (
+  videoObject: VideoTorrentObject | string,
+  syncParam: SyncParam = { likes: true, dislikes: true, shares: true, comments: true, thumbnail: true }
+) {
+  const videoUrl = typeof videoObject === 'string' ? videoObject : videoObject.id
+
+  const videoFromDatabase = await VideoModel.loadByUrlAndPopulateAccount(videoUrl)
+  if (videoFromDatabase) return { video: videoFromDatabase }
+
+  const fetchedVideo = await fetchRemoteVideo(videoUrl)
+  if (!fetchedVideo) throw new Error('Cannot fetch remote video with url: ' + videoUrl)
+
+  const channelActor = await getOrCreateVideoChannel(fetchedVideo)
+  const video = await retryTransactionWrapper(getOrCreateVideo, fetchedVideo, channelActor, syncParam.thumbnail)
+
+  // Process outside the transaction because we could fetch remote data
+
+  logger.info('Adding likes/dislikes/shares/comments of video %s.', video.uuid)
+
+  const jobPayloads: ActivitypubHttpFetcherPayload[] = []
+
+  if (syncParam.likes === true) {
+    await crawlCollectionPage<string>(fetchedVideo.likes, items => createRates(items, video, 'like'))
+      .catch(err => logger.error('Cannot add likes of video %s.', video.uuid, { err }))
+  } else {
+    jobPayloads.push({ uri: fetchedVideo.likes, videoId: video.id, type: 'video-likes' as 'video-likes' })
+  }
+
+  if (syncParam.dislikes === true) {
+    await crawlCollectionPage<string>(fetchedVideo.dislikes, items => createRates(items, video, 'dislike'))
+      .catch(err => logger.error('Cannot add dislikes of video %s.', video.uuid, { err }))
+  } else {
+    jobPayloads.push({ uri: fetchedVideo.dislikes, videoId: video.id, type: 'video-dislikes' as 'video-dislikes' })
+  }
+
+  if (syncParam.shares === true) {
+    await crawlCollectionPage<string>(fetchedVideo.shares, items => addVideoShares(items, video))
+      .catch(err => logger.error('Cannot add shares of video %s.', video.uuid, { err }))
+  } else {
+    jobPayloads.push({ uri: fetchedVideo.shares, videoId: video.id, type: 'video-shares' as 'video-shares' })
+  }
+
+  if (syncParam.comments === true) {
+    await crawlCollectionPage<string>(fetchedVideo.comments, items => addVideoComments(items, video))
+      .catch(err => logger.error('Cannot add comments of video %s.', video.uuid, { err }))
+  } else {
+    jobPayloads.push({ uri: fetchedVideo.shares, videoId: video.id, type: 'video-shares' as 'video-shares' })
+  }
+
+  await Bluebird.map(jobPayloads, payload => JobQueue.Instance.createJob({ type: 'activitypub-http-fetcher', payload }))
+
+  return { video }
+}
+
+async function createRates (actorUrls: string[], video: VideoModel, rate: VideoRateType) {
+  let rateCounts = 0
+
+  await Bluebird.map(actorUrls, async actorUrl => {
+    try {
+      const actor = await getOrCreateActorAndServerAndModel(actorUrl)
+      const [ , created ] = await AccountVideoRateModel
+        .findOrCreate({
+          where: {
+            videoId: video.id,
+            accountId: actor.Account.id
+          },
+          defaults: {
+            videoId: video.id,
+            accountId: actor.Account.id,
+            type: rate
+          }
+        })
+
+      if (created) rateCounts += 1
+    } catch (err) {
+      logger.warn('Cannot add rate %s for actor %s.', rate, actorUrl, { err })
+    }
+  }, { concurrency: CRAWL_REQUEST_CONCURRENCY })
+
+  logger.info('Adding %d %s to video %s.', rateCounts, rate, video.uuid)
+
+  // This is "likes" and "dislikes"
+  if (rateCounts !== 0) await video.increment(rate + 's', { by: rateCounts })
+
+  return
+}
+
+async function addVideoShares (shareUrls: string[], instance: VideoModel) {
+  await Bluebird.map(shareUrls, async shareUrl => {
+    try {
+      // Fetch url
+      const { body } = await doRequest({
+        uri: shareUrl,
+        json: true,
+        activityPub: true
+      })
+      if (!body || !body.actor) throw new Error('Body of body actor is invalid')
+
+      const actorUrl = body.actor
+      const actor = await getOrCreateActorAndServerAndModel(actorUrl)
+
+      const entry = {
+        actorId: actor.id,
+        videoId: instance.id,
+        url: shareUrl
+      }
+
+      await VideoShareModel.findOrCreate({
+        where: {
+          url: shareUrl
+        },
+        defaults: entry
+      })
+    } catch (err) {
+      logger.warn('Cannot add share %s.', shareUrl, { err })
+    }
+  }, { concurrency: CRAWL_REQUEST_CONCURRENCY })
+}
+
+async function fetchRemoteVideo (videoUrl: string): Promise<VideoTorrentObject> {
+  const options = {
+    uri: videoUrl,
+    method: 'GET',
+    json: true,
+    activityPub: true
+  }
+
+  logger.info('Fetching remote video %s.', videoUrl)
+
+  const { body } = await doRequest(options)
+
+  if (sanitizeAndCheckVideoTorrentObject(body) === false) {
+    logger.debug('Remote video JSON is not valid.', { body })
+    return undefined
+  }
+
+  return body
+}
+
 export {
-  fetchRemoteVideoPreview,
+  federateVideoIfNeeded,
+  fetchRemoteVideo,
+  getOrCreateAccountAndVideoAndChannel,
+  fetchRemoteVideoStaticFile,
   fetchRemoteVideoDescription,
-  generateThumbnailFromUrl
+  generateThumbnailFromUrl,
+  videoActivityObjectToDBAttributes,
+  videoFileActivityUrlToDBAttributes,
+  getOrCreateVideo,
+  getOrCreateVideoChannel,
+  addVideoShares,
+  createRates
 }