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