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