server/lib/activitypub/send/send-undo.ts

   1 import { Transaction } from 'sequelize'
   2 import {
   3   ActivityAudience,
   4   ActivityCreate,
   5   ActivityFollow,
   6   ActivityLike,
   7   ActivityUndo
   8 } from '../../../../shared/models/activitypub'
   9 import { ActorModel } from '../../../models/activitypub/actor'
  10 import { ActorFollowModel } from '../../../models/activitypub/actor-follow'
  11 import { VideoModel } from '../../../models/video/video'
  12 import { getActorFollowActivityPubUrl, getUndoActivityPubUrl, getVideoDislikeActivityPubUrl, getVideoLikeActivityPubUrl } from '../url'
  13 import {
  14   broadcastToFollowers,
  15   getActorsInvolvedInVideo,
  16   getAudience,
  17   getObjectFollowersAudience,
  18   getOriginVideoAudience,
  19   unicastTo
  20 } from './misc'
  21 import { createActivityData, createDislikeActivityData } from './send-create'
  22 import { followActivityData } from './send-follow'
  23 import { likeActivityData } from './send-like'
  24
  25 async function sendUndoFollow (actorFollow: ActorFollowModel, t: Transaction) {
  26   const me = actorFollow.ActorFollower
  27   const following = actorFollow.ActorFollowing
  28
  29   const followUrl = getActorFollowActivityPubUrl(actorFollow)
  30   const undoUrl = getUndoActivityPubUrl(followUrl)
  31
  32   const object = followActivityData(followUrl, me, following)
  33   const data = await undoActivityData(undoUrl, me, object, t)
  34
  35   return unicastTo(data, me, following.inboxUrl, t)
  36 }
  37
  38 async function sendUndoLikeToOrigin (byActor: ActorModel, video: VideoModel, t: Transaction) {
  39   const likeUrl = getVideoLikeActivityPubUrl(byActor, video)
  40   const undoUrl = getUndoActivityPubUrl(likeUrl)
  41
  42   const actorsInvolvedInVideo = await getActorsInvolvedInVideo(video, t)
  43   const audience = getOriginVideoAudience(video, actorsInvolvedInVideo)
  44   const object = await likeActivityData(likeUrl, byActor, video, t)
  45   const data = await undoActivityData(undoUrl, byActor, object, t, audience)
  46
  47   return unicastTo(data, byActor, video.VideoChannel.Account.Actor.sharedInboxUrl, t)
  48 }
  49
  50 async function sendUndoLikeToVideoFollowers (byActor: ActorModel, video: VideoModel, t: Transaction) {
  51   const likeUrl = getVideoLikeActivityPubUrl(byActor, video)
  52   const undoUrl = getUndoActivityPubUrl(likeUrl)
  53
  54   const toActorsFollowers = await getActorsInvolvedInVideo(video, t)
  55   const audience = getObjectFollowersAudience(toActorsFollowers)
  56   const object = await likeActivityData(likeUrl, byActor, video, t)
  57   const data = await undoActivityData(undoUrl, byActor, object, t, audience)
  58
  59   const followersException = [ byActor ]
  60   return broadcastToFollowers(data, byActor, toActorsFollowers, t, followersException)
  61 }
  62
  63 async function sendUndoDislikeToOrigin (byActor: ActorModel, video: VideoModel, t: Transaction) {
  64   const dislikeUrl = getVideoDislikeActivityPubUrl(byActor, video)
  65   const undoUrl = getUndoActivityPubUrl(dislikeUrl)
  66
  67   const actorsInvolvedInVideo = await getActorsInvolvedInVideo(video, t)
  68   const audience = getOriginVideoAudience(video, actorsInvolvedInVideo)
  69   const dislikeActivity = createDislikeActivityData(byActor, video)
  70   const object = await createActivityData(undoUrl, byActor, dislikeActivity, t)
  71
  72   const data = await undoActivityData(undoUrl, byActor, object, t, audience)
  73
  74   return unicastTo(data, byActor, video.VideoChannel.Account.Actor.sharedInboxUrl, t)
  75 }
  76
  77 async function sendUndoDislikeToVideoFollowers (byActor: ActorModel, video: VideoModel, t: Transaction) {
  78   const dislikeUrl = getVideoDislikeActivityPubUrl(byActor, video)
  79   const undoUrl = getUndoActivityPubUrl(dislikeUrl)
  80
  81   const dislikeActivity = createDislikeActivityData(byActor, video)
  82   const object = await createActivityData(undoUrl, byActor, dislikeActivity, t)
  83
  84   const data = await undoActivityData(undoUrl, byActor, object, t)
  85
  86   const toActorsFollowers = await getActorsInvolvedInVideo(video, t)
  87
  88   const followersException = [ byActor ]
  89   return broadcastToFollowers(data, byActor, toActorsFollowers, t, followersException)
  90 }
  91
  92 // ---------------------------------------------------------------------------
  93
  94 export {
  95   sendUndoFollow,
  96   sendUndoLikeToOrigin,
  97   sendUndoLikeToVideoFollowers,
  98   sendUndoDislikeToOrigin,
  99   sendUndoDislikeToVideoFollowers
 100 }
 101
 102 // ---------------------------------------------------------------------------
 103
 104 async function undoActivityData (
 105   url: string,
 106   byActor: ActorModel,
 107   object: ActivityFollow | ActivityLike | ActivityCreate,
 108   t: Transaction,
 109   audience?: ActivityAudience
 110 ): Promise<ActivityUndo> {
 111   if (!audience) {
 112     audience = await getAudience(byActor, t)
 113   }
 114
 115   return {
 116     type: 'Undo',
 117     id: url,
 118     actor: byActor.url,
 119     to: audience.to,
 120     cc: audience.cc,
 121     object
 122   }
 123 }