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
  12 async function sendDeleteVideo (video: VideoModel, transaction: Transaction) {
  13   logger.info('Creating job to broadcast delete of video %s.', video.url)
  14
  15   const byActor = video.VideoChannel.Account.Actor
  16
  17   const activityBuilder = (audience: ActivityAudience) => {
  18     const url = getDeleteActivityPubUrl(video.url)
  19
  20     return buildDeleteActivity(url, video.url, byActor, audience)
  21   }
  22
  23   return sendVideoRelatedActivity(activityBuilder, { byActor, video, transaction })
  24 }
  25
  26 async function sendDeleteActor (byActor: ActorModel, t: Transaction) {
  27   logger.info('Creating job to broadcast delete of actor %s.', byActor.url)
  28
  29   const url = getDeleteActivityPubUrl(byActor.url)
  30   const activity = buildDeleteActivity(url, byActor.url, byActor)
  31
  32   const actorsInvolved = await VideoShareModel.loadActorsByVideoOwner(byActor.id, t)
  33   actorsInvolved.push(byActor)
  34
  35   return broadcastToFollowers(activity, byActor, actorsInvolved, t)
  36 }
  37
  38 async function sendDeleteVideoComment (videoComment: VideoCommentModel, t: Transaction) {
  39   logger.info('Creating job to send delete of comment %s.', videoComment.url)
  40
  41   const isVideoOrigin = videoComment.Video.isOwned()
  42
  43   const url = getDeleteActivityPubUrl(videoComment.url)
  44   const byActor = videoComment.Account.Actor
  45   const threadParentComments = await VideoCommentModel.listThreadParentComments(videoComment, t)
  46
  47   const actorsInvolvedInComment = await getActorsInvolvedInVideo(videoComment.Video, t)
  48   actorsInvolvedInComment.push(byActor) // Add the actor that commented the video
  49
  50   const audience = getVideoCommentAudience(videoComment, threadParentComments, actorsInvolvedInComment, isVideoOrigin)
  51   const activity = buildDeleteActivity(url, videoComment.url, byActor, audience)
  52
  53   // This was a reply, send it to the parent actors
  54   const actorsException = [ byActor ]
  55   await broadcastToActors(activity, byActor, threadParentComments.map(c => c.Account.Actor), actorsException)
  56
  57   // Broadcast to our followers
  58   await broadcastToFollowers(activity, byActor, [ byActor ], t)
  59
  60   // Send to actors involved in the comment
  61   if (isVideoOrigin) return broadcastToFollowers(activity, byActor, actorsInvolvedInComment, t, actorsException)
  62
  63   // Send to origin
  64   return unicastTo(activity, byActor, videoComment.Video.VideoChannel.Account.Actor.sharedInboxUrl)
  65 }
  66
  67 // ---------------------------------------------------------------------------
  68
  69 export {
  70   sendDeleteVideo,
  71   sendDeleteActor,
  72   sendDeleteVideoComment
  73 }
  74
  75 // ---------------------------------------------------------------------------
  76
  77 function buildDeleteActivity (url: string, object: string, byActor: ActorModel, audience?: ActivityAudience): ActivityDelete {
  78   const activity = {
  79     type: 'Delete' as 'Delete',
  80     id: url,
  81     actor: byActor.url,
  82     object
  83   }
  84
  85   if (audience) return audiencify(activity, audience)
  86
  87   return activity
  88 }