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

   1 import { Transaction } from 'sequelize'
   2 import {
   3   ActivityAnnounce,
   4   ActivityAudience,
   5   ActivityCreate, ActivityDislike,
   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 { broadcastToFollowers, sendVideoRelatedActivity, unicastTo } from './utils'
  15 import { audiencify, getAudience } from '../audience'
  16 import { buildCreateActivity } from './send-create'
  17 import { buildFollowActivity } from './send-follow'
  18 import { buildLikeActivity } from './send-like'
  19 import { VideoShareModel } from '../../../models/video/video-share'
  20 import { buildAnnounceWithVideoAudience } from './send-announce'
  21 import { logger } from '../../../helpers/logger'
  22 import { VideoRedundancyModel } from '../../../models/redundancy/video-redundancy'
  23 import { buildDislikeActivity } from './send-dislike'
  24
  25 async function sendUndoFollow (actorFollow: ActorFollowModel, t: Transaction) {
  26   const me = actorFollow.ActorFollower
  27   const following = actorFollow.ActorFollowing
  28
  29   // Same server as ours
  30   if (!following.serverId) return
  31
  32   logger.info('Creating job to send an unfollow request to %s.', following.url)
  33
  34   const followUrl = getActorFollowActivityPubUrl(me, following)
  35   const undoUrl = getUndoActivityPubUrl(followUrl)
  36
  37   const followActivity = buildFollowActivity(followUrl, me, following)
  38   const undoActivity = undoActivityData(undoUrl, me, followActivity)
  39
  40   t.afterCommit(() => unicastTo(undoActivity, me, following.inboxUrl))
  41 }
  42
  43 async function sendUndoAnnounce (byActor: ActorModel, videoShare: VideoShareModel, video: VideoModel, t: Transaction) {
  44   logger.info('Creating job to undo announce %s.', videoShare.url)
  45
  46   const undoUrl = getUndoActivityPubUrl(videoShare.url)
  47
  48   const { activity: announceActivity, actorsInvolvedInVideo } = await buildAnnounceWithVideoAudience(byActor, videoShare, video, t)
  49   const undoActivity = undoActivityData(undoUrl, byActor, announceActivity)
  50
  51   const followersException = [ byActor ]
  52   return broadcastToFollowers(undoActivity, byActor, actorsInvolvedInVideo, t, followersException)
  53 }
  54
  55 async function sendUndoLike (byActor: ActorModel, video: VideoModel, t: Transaction) {
  56   logger.info('Creating job to undo a like of video %s.', video.url)
  57
  58   const likeUrl = getVideoLikeActivityPubUrl(byActor, video)
  59   const likeActivity = buildLikeActivity(likeUrl, byActor, video)
  60
  61   return sendUndoVideoRelatedActivity({ byActor, video, url: likeUrl, activity: likeActivity, transaction: t })
  62 }
  63
  64 async function sendUndoDislike (byActor: ActorModel, video: VideoModel, t: Transaction) {
  65   logger.info('Creating job to undo a dislike of video %s.', video.url)
  66
  67   const dislikeUrl = getVideoDislikeActivityPubUrl(byActor, video)
  68   const dislikeActivity = buildDislikeActivity(dislikeUrl, byActor, video)
  69
  70   return sendUndoVideoRelatedActivity({ byActor, video, url: dislikeUrl, activity: dislikeActivity, transaction: t })
  71 }
  72
  73 async function sendUndoCacheFile (byActor: ActorModel, redundancyModel: VideoRedundancyModel, t: Transaction) {
  74   logger.info('Creating job to undo cache file %s.', redundancyModel.url)
  75
  76   const videoId = redundancyModel.getVideo().id
  77   const video = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoId)
  78   const createActivity = buildCreateActivity(redundancyModel.url, byActor, redundancyModel.toActivityPubObject())
  79
  80   return sendUndoVideoRelatedActivity({ byActor, video, url: redundancyModel.url, activity: createActivity, transaction: t })
  81 }
  82
  83 // ---------------------------------------------------------------------------
  84
  85 export {
  86   sendUndoFollow,
  87   sendUndoLike,
  88   sendUndoDislike,
  89   sendUndoAnnounce,
  90   sendUndoCacheFile
  91 }
  92
  93 // ---------------------------------------------------------------------------
  94
  95 function undoActivityData (
  96   url: string,
  97   byActor: ActorModel,
  98   object: ActivityFollow | ActivityLike | ActivityDislike | ActivityCreate | ActivityAnnounce,
  99   audience?: ActivityAudience
 100 ): ActivityUndo {
 101   if (!audience) audience = getAudience(byActor)
 102
 103   return audiencify(
 104     {
 105       type: 'Undo' as 'Undo',
 106       id: url,
 107       actor: byActor.url,
 108       object
 109     },
 110     audience
 111   )
 112 }
 113
 114 async function sendUndoVideoRelatedActivity (options: {
 115   byActor: ActorModel,
 116   video: VideoModel,
 117   url: string,
 118   activity: ActivityFollow | ActivityLike | ActivityDislike | ActivityCreate | ActivityAnnounce,
 119   transaction: Transaction
 120 }) {
 121   const activityBuilder = (audience: ActivityAudience) => {
 122     const undoUrl = getUndoActivityPubUrl(options.url)
 123
 124     return undoActivityData(undoUrl, options.byActor, options.activity, audience)
 125   }
 126
 127   return sendVideoRelatedActivity(activityBuilder, options)
 128 }