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

   1 import { Transaction } from 'sequelize'
   2 import {
   3   ActivityAnnounce,
   4   ActivityAudience,
   5   ActivityCreate,
   6   ActivityFollow,
   7   ActivityLike,
   8   ActivityUndo
   9 } from '../../../../shared/models/activitypub'
  10 import { ActorModel } from '../../../models/activitypub/actor'
  11 import { ActorFollowModel } from '../../../models/activitypub/actor-follow'
  12 import { VideoModel } from '../../../models/video/video'
  13 import { getActorFollowActivityPubUrl, getUndoActivityPubUrl, getVideoDislikeActivityPubUrl, getVideoLikeActivityPubUrl } from '../url'
  14 import {
  15   audiencify,
  16   broadcastToFollowers,
  17   getActorsInvolvedInVideo,
  18   getAudience,
  19   getObjectFollowersAudience,
  20   getOriginVideoAudience,
  21   unicastTo
  22 } from './misc'
  23 import { createActivityData, createDislikeActivityData } from './send-create'
  24 import { followActivityData } from './send-follow'
  25 import { likeActivityData } from './send-like'
  26 import { VideoShareModel } from '../../../models/video/video-share'
  27 import { buildVideoAnnounce } from './send-announce'
  28
  29 async function sendUndoFollow (actorFollow: ActorFollowModel, t: Transaction) {
  30   const me = actorFollow.ActorFollower
  31   const following = actorFollow.ActorFollowing
  32
  33   const followUrl = getActorFollowActivityPubUrl(actorFollow)
  34   const undoUrl = getUndoActivityPubUrl(followUrl)
  35
  36   const object = followActivityData(followUrl, me, following)
  37   const data = await undoActivityData(undoUrl, me, object, t)
  38
  39   return unicastTo(data, me, following.inboxUrl)
  40 }
  41
  42 async function sendUndoLike (byActor: ActorModel, video: VideoModel, t: Transaction) {
  43   const likeUrl = getVideoLikeActivityPubUrl(byActor, video)
  44   const undoUrl = getUndoActivityPubUrl(likeUrl)
  45
  46   const actorsInvolvedInVideo = await getActorsInvolvedInVideo(video, t)
  47   const object = await likeActivityData(likeUrl, byActor, video, t)
  48
  49   // Send to origin
  50   if (video.isOwned() === false) {
  51     const audience = getOriginVideoAudience(video, actorsInvolvedInVideo)
  52     const data = await undoActivityData(undoUrl, byActor, object, t, audience)
  53
  54     return unicastTo(data, byActor, video.VideoChannel.Account.Actor.sharedInboxUrl)
  55   }
  56
  57   const audience = getObjectFollowersAudience(actorsInvolvedInVideo)
  58   const data = await undoActivityData(undoUrl, byActor, object, t, audience)
  59
  60   const followersException = [ byActor ]
  61   return broadcastToFollowers(data, byActor, actorsInvolvedInVideo, t, followersException)
  62 }
  63
  64 async function sendUndoDislike (byActor: ActorModel, video: VideoModel, t: Transaction) {
  65   const dislikeUrl = getVideoDislikeActivityPubUrl(byActor, video)
  66   const undoUrl = getUndoActivityPubUrl(dislikeUrl)
  67
  68   const actorsInvolvedInVideo = await getActorsInvolvedInVideo(video, t)
  69   const dislikeActivity = createDislikeActivityData(byActor, video)
  70   const object = await createActivityData(dislikeUrl, byActor, dislikeActivity, t)
  71
  72   if (video.isOwned() === false) {
  73     const audience = getOriginVideoAudience(video, actorsInvolvedInVideo)
  74     const data = await undoActivityData(undoUrl, byActor, object, t, audience)
  75
  76     return unicastTo(data, byActor, video.VideoChannel.Account.Actor.sharedInboxUrl)
  77   }
  78
  79   const data = await undoActivityData(undoUrl, byActor, object, t)
  80
  81   const followersException = [ byActor ]
  82   return broadcastToFollowers(data, byActor, actorsInvolvedInVideo, t, followersException)
  83 }
  84
  85 async function sendUndoAnnounce (byActor: ActorModel, videoShare: VideoShareModel, video: VideoModel, t: Transaction) {
  86   const undoUrl = getUndoActivityPubUrl(videoShare.url)
  87
  88   const actorsInvolvedInVideo = await getActorsInvolvedInVideo(video, t)
  89   const object = await buildVideoAnnounce(byActor, videoShare, video, t)
  90   const data = await undoActivityData(undoUrl, byActor, object, t)
  91
  92   const followersException = [ byActor ]
  93   return broadcastToFollowers(data, byActor, actorsInvolvedInVideo, t, followersException)
  94 }
  95
  96 // ---------------------------------------------------------------------------
  97
  98 export {
  99   sendUndoFollow,
 100   sendUndoLike,
 101   sendUndoDislike,
 102   sendUndoAnnounce
 103 }
 104
 105 // ---------------------------------------------------------------------------
 106
 107 async function undoActivityData (
 108   url: string,
 109   byActor: ActorModel,
 110   object: ActivityFollow | ActivityLike | ActivityCreate | ActivityAnnounce,
 111   t: Transaction,
 112   audience?: ActivityAudience
 113 ): Promise<ActivityUndo> {
 114   if (!audience) {
 115     audience = await getAudience(byActor, t)
 116   }
 117
 118   return audiencify({
 119     type: 'Undo' as 'Undo',
 120     id: url,
 121     actor: byActor.url,
 122     object
 123   }, audience)
 124 }