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.loadActorsWhoSharedVideosOf(byActor.id, t)
  35
  36   // In case the actor did not have any videos
  37   const serverActor = await getServerActor()
  38   actorsInvolved.push(serverActor)
  39
  40   actorsInvolved.push(byActor)
  41
  42   return broadcastToFollowers(activity, byActor, actorsInvolved, t)
  43 }
  44
  45 async function sendDeleteVideoComment (videoComment: VideoCommentModel, t: Transaction) {
  46   logger.info('Creating job to send delete of comment %s.', videoComment.url)
  47
  48   const isVideoOrigin = videoComment.Video.isOwned()
  49
  50   const url = getDeleteActivityPubUrl(videoComment.url)
  51   const byActor = videoComment.isOwned()
  52     ? videoComment.Account.Actor
  53     : videoComment.Video.VideoChannel.Account.Actor
  54
  55   const threadParentComments = await VideoCommentModel.listThreadParentComments(videoComment, t)
  56
  57   const actorsInvolvedInComment = await getActorsInvolvedInVideo(videoComment.Video, t)
  58   actorsInvolvedInComment.push(byActor) // Add the actor that commented the video
  59
  60   const audience = getVideoCommentAudience(videoComment, threadParentComments, actorsInvolvedInComment, isVideoOrigin)
  61   const activity = buildDeleteActivity(url, videoComment.url, byActor, audience)
  62
  63   // This was a reply, send it to the parent actors
  64   const actorsException = [ byActor ]
  65   await broadcastToActors(activity, byActor, threadParentComments.map(c => c.Account.Actor), t, actorsException)
  66
  67   // Broadcast to our followers
  68   await broadcastToFollowers(activity, byActor, [ byActor ], t)
  69
  70   // Send to actors involved in the comment
  71   if (isVideoOrigin) return broadcastToFollowers(activity, byActor, actorsInvolvedInComment, t, actorsException)
  72
  73   // Send to origin
  74   t.afterCommit(() => unicastTo(activity, byActor, videoComment.Video.VideoChannel.Account.Actor.sharedInboxUrl))
  75 }
  76
  77 async function sendDeleteVideoPlaylist (videoPlaylist: VideoPlaylistModel, t: Transaction) {
  78   logger.info('Creating job to send delete of playlist %s.', videoPlaylist.url)
  79
  80   const byActor = videoPlaylist.OwnerAccount.Actor
  81
  82   const url = getDeleteActivityPubUrl(videoPlaylist.url)
  83   const activity = buildDeleteActivity(url, videoPlaylist.url, byActor)
  84
  85   const serverActor = await getServerActor()
  86   const toFollowersOf = [ byActor, serverActor ]
  87
  88   if (videoPlaylist.VideoChannel) toFollowersOf.push(videoPlaylist.VideoChannel.Actor)
  89
  90   return broadcastToFollowers(activity, byActor, toFollowersOf, t)
  91 }
  92
  93 // ---------------------------------------------------------------------------
  94
  95 export {
  96   sendDeleteVideo,
  97   sendDeleteActor,
  98   sendDeleteVideoComment,
  99   sendDeleteVideoPlaylist
 100 }
 101
 102 // ---------------------------------------------------------------------------
 103
 104 function buildDeleteActivity (url: string, object: string, byActor: ActorModel, audience?: ActivityAudience): ActivityDelete {
 105   const activity = {
 106     type: 'Delete' as 'Delete',
 107     id: url,
 108     actor: byActor.url,
 109     object
 110   }
 111
 112   if (audience) return audiencify(activity, audience)
 113
 114   return activity
 115 }