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