server/lib/activitypub/send/send-delete.ts

   1 import { Transaction } from 'sequelize'
   2 import { ActivityAudience, ActivityDelete } from '../../../../shared/models/activitypub'
   3 import { ActorModel } from '../../../models/activitypub/actor'
   4 import { VideoModel } from '../../../models/video/video'
   5 import { VideoCommentModel } from '../../../models/video/video-comment'
   6 import { VideoShareModel } from '../../../models/video/video-share'
   7 import { getDeleteActivityPubUrl } from '../url'
   8 import { broadcastToActors, broadcastToFollowers, sendVideoRelatedActivity, unicastTo } from './utils'
   9 import { audiencify, getActorsInvolvedInVideo, getVideoCommentAudience } from '../audience'
  10 import { logger } from '../../../helpers/logger'
  11 import { VideoPlaylistModel } from '../../../models/video/video-playlist'
  12 import { getServerActor } from '../../../helpers/utils'
  13
  14 async function sendDeleteVideo (video: VideoModel, transaction: Transaction) {
  15   logger.info('Creating job to broadcast delete of video %s.', video.url)
  16
  17   const byActor = video.VideoChannel.Account.Actor
  18
  19   const activityBuilder = (audience: ActivityAudience) => {
  20     const url = getDeleteActivityPubUrl(video.url)
  21
  22     return buildDeleteActivity(url, video.url, byActor, audience)
  23   }
  24
  25   return sendVideoRelatedActivity(activityBuilder, { byActor, video, transaction })
  26 }
  27
  28 async function sendDeleteActor (byActor: ActorModel, t: Transaction) {
  29   logger.info('Creating job to broadcast delete of actor %s.', byActor.url)
  30
  31   const url = getDeleteActivityPubUrl(byActor.url)
  32   const activity = buildDeleteActivity(url, byActor.url, byActor)
  33
  34   const actorsInvolved = await VideoShareModel.loadActorsByVideoOwner(byActor.id, t)
  35   actorsInvolved.push(byActor)
  36
  37   return broadcastToFollowers(activity, byActor, actorsInvolved, t)
  38 }
  39
  40 async function sendDeleteVideoComment (videoComment: VideoCommentModel, t: Transaction) {
  41   logger.info('Creating job to send delete of comment %s.', videoComment.url)
  42
  43   const isVideoOrigin = videoComment.Video.isOwned()
  44
  45   const url = getDeleteActivityPubUrl(videoComment.url)
  46   const byActor = videoComment.Account.Actor
  47   const threadParentComments = await VideoCommentModel.listThreadParentComments(videoComment, t)
  48
  49   const actorsInvolvedInComment = await getActorsInvolvedInVideo(videoComment.Video, t)
  50   actorsInvolvedInComment.push(byActor) // Add the actor that commented the video
  51
  52   const audience = getVideoCommentAudience(videoComment, threadParentComments, actorsInvolvedInComment, isVideoOrigin)
  53   const activity = buildDeleteActivity(url, videoComment.url, byActor, audience)
  54
  55   // This was a reply, send it to the parent actors
  56   const actorsException = [ byActor ]
  57   await broadcastToActors(activity, byActor, threadParentComments.map(c => c.Account.Actor), actorsException)
  58
  59   // Broadcast to our followers
  60   await broadcastToFollowers(activity, byActor, [ byActor ], t)
  61
  62   // Send to actors involved in the comment
  63   if (isVideoOrigin) return broadcastToFollowers(activity, byActor, actorsInvolvedInComment, t, actorsException)
  64
  65   // Send to origin
  66   return unicastTo(activity, byActor, videoComment.Video.VideoChannel.Account.Actor.sharedInboxUrl)
  67 }
  68
  69 async function sendDeleteVideoPlaylist (videoPlaylist: VideoPlaylistModel, t: Transaction) {
  70   logger.info('Creating job to send delete of playlist %s.', videoPlaylist.url)
  71
  72   const byActor = videoPlaylist.OwnerAccount.Actor
  73
  74   const url = getDeleteActivityPubUrl(videoPlaylist.url)
  75   const activity = buildDeleteActivity(url, videoPlaylist.url, byActor)
  76
  77   const serverActor = await getServerActor()
  78   const toFollowersOf = [ byActor, serverActor ]
  79
  80   if (videoPlaylist.VideoChannel) toFollowersOf.push(videoPlaylist.VideoChannel.Actor)
  81
  82   return broadcastToFollowers(activity, byActor, toFollowersOf, t)
  83 }
  84
  85 // ---------------------------------------------------------------------------
  86
  87 export {
  88   sendDeleteVideo,
  89   sendDeleteActor,
  90   sendDeleteVideoComment,
  91   sendDeleteVideoPlaylist
  92 }
  93
  94 // ---------------------------------------------------------------------------
  95
  96 function buildDeleteActivity (url: string, object: string, byActor: ActorModel, audience?: ActivityAudience): ActivityDelete {
  97   const activity = {
  98     type: 'Delete' as 'Delete',
  99     id: url,
 100     actor: byActor.url,
 101     object
 102   }
 103
 104   if (audience) return audiencify(activity, audience)
 105
 106   return activity
 107 }