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/activity'
   9 import { AccountInstance } from '../../../models'
  10 import { AccountFollowInstance } from '../../../models/account/account-follow-interface'
  11 import { VideoInstance } from '../../../models/video/video-interface'
  12 import { getAccountFollowActivityPubUrl, getUndoActivityPubUrl, getVideoDislikeActivityPubUrl, getVideoLikeActivityPubUrl } from '../url'
  13 import {
  14   broadcastToFollowers,
  15   getAccountsInvolvedInVideo,
  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 (accountFollow: AccountFollowInstance, t: Transaction) {
  26   const me = accountFollow.AccountFollower
  27   const following = accountFollow.AccountFollowing
  28
  29   const followUrl = getAccountFollowActivityPubUrl(accountFollow)
  30   const undoUrl = getUndoActivityPubUrl(followUrl)
  31
  32   const object = await followActivityData(followUrl, me, following)
  33   const data = await undoActivityData(undoUrl, me, object)
  34
  35   return unicastTo(data, me, following.inboxUrl, t)
  36 }
  37
  38 async function sendUndoLikeToOrigin (byAccount: AccountInstance, video: VideoInstance, t: Transaction) {
  39   const likeUrl = getVideoLikeActivityPubUrl(byAccount, video)
  40   const undoUrl = getUndoActivityPubUrl(likeUrl)
  41
  42   const accountsInvolvedInVideo = await getAccountsInvolvedInVideo(video)
  43   const audience = getOriginVideoAudience(video, accountsInvolvedInVideo)
  44   const object = await likeActivityData(likeUrl, byAccount, video)
  45   const data = await undoActivityData(undoUrl, byAccount, object, audience)
  46
  47   return unicastTo(data, byAccount, video.VideoChannel.Account.sharedInboxUrl, t)
  48 }
  49
  50 async function sendUndoLikeToVideoFollowers (byAccount: AccountInstance, video: VideoInstance, t: Transaction) {
  51   const likeUrl = getVideoLikeActivityPubUrl(byAccount, video)
  52   const undoUrl = getUndoActivityPubUrl(likeUrl)
  53
  54   const toAccountsFollowers = await getAccountsInvolvedInVideo(video)
  55   const audience = getObjectFollowersAudience(toAccountsFollowers)
  56   const object = await likeActivityData(likeUrl, byAccount, video)
  57   const data = await undoActivityData(undoUrl, byAccount, object, audience)
  58
  59   const followersException = [ byAccount ]
  60   return broadcastToFollowers(data, byAccount, toAccountsFollowers, t, followersException)
  61 }
  62
  63 async function sendUndoDislikeToOrigin (byAccount: AccountInstance, video: VideoInstance, t: Transaction) {
  64   const dislikeUrl = getVideoDislikeActivityPubUrl(byAccount, video)
  65   const undoUrl = getUndoActivityPubUrl(dislikeUrl)
  66
  67   const accountsInvolvedInVideo = await getAccountsInvolvedInVideo(video)
  68   const audience = getOriginVideoAudience(video, accountsInvolvedInVideo)
  69   const dislikeActivity = createDislikeActivityData(byAccount, video)
  70   const object = await createActivityData(undoUrl, byAccount, dislikeActivity, audience)
  71
  72   const data = await undoActivityData(undoUrl, byAccount, object)
  73
  74   return unicastTo(data, byAccount, video.VideoChannel.Account.sharedInboxUrl, t)
  75 }
  76
  77 async function sendUndoDislikeToVideoFollowers (byAccount: AccountInstance, video: VideoInstance, t: Transaction) {
  78   const dislikeUrl = getVideoDislikeActivityPubUrl(byAccount, video)
  79   const undoUrl = getUndoActivityPubUrl(dislikeUrl)
  80
  81   const dislikeActivity = createDislikeActivityData(byAccount, video)
  82   const object = await createActivityData(undoUrl, byAccount, dislikeActivity)
  83
  84   const data = await undoActivityData(undoUrl, byAccount, object)
  85
  86   const toAccountsFollowers = await getAccountsInvolvedInVideo(video)
  87
  88   const followersException = [ byAccount ]
  89   return broadcastToFollowers(data, byAccount, toAccountsFollowers, 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   byAccount: AccountInstance,
 107   object: ActivityFollow | ActivityLike | ActivityCreate,
 108   audience?: ActivityAudience
 109 ) {
 110   if (!audience) {
 111     audience = await getAudience(byAccount)
 112   }
 113
 114   const activity: ActivityUndo = {
 115     type: 'Undo',
 116     id: url,
 117     actor: byAccount.url,
 118     to: audience.to,
 119     cc: audience.cc,
 120     object
 121   }
 122
 123   return activity
 124 }