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 { broadcastToFollowers, getAccountsInvolvedInVideo, getAudience, getObjectFollowersAudience, unicastTo } from './misc'
  14 import { createActivityData, createDislikeActivityData } from './send-create'
  15 import { followActivityData } from './send-follow'
  16 import { likeActivityData } from './send-like'
  17
  18 async function sendUndoFollow (accountFollow: AccountFollowInstance, t: Transaction) {
  19   const me = accountFollow.AccountFollower
  20   const following = accountFollow.AccountFollowing
  21
  22   const followUrl = getAccountFollowActivityPubUrl(accountFollow)
  23   const undoUrl = getUndoActivityPubUrl(followUrl)
  24
  25   const object = await followActivityData(followUrl, me, following)
  26   const data = await undoActivityData(undoUrl, me, object)
  27
  28   return unicastTo(data, me, following.inboxUrl, t)
  29 }
  30
  31 async function sendUndoLikeToOrigin (byAccount: AccountInstance, video: VideoInstance, t: Transaction) {
  32   const likeUrl = getVideoLikeActivityPubUrl(byAccount, video)
  33   const undoUrl = getUndoActivityPubUrl(likeUrl)
  34
  35   const object = await likeActivityData(likeUrl, byAccount, video)
  36   const data = await undoActivityData(undoUrl, byAccount, object)
  37
  38   return unicastTo(data, byAccount, video.VideoChannel.Account.sharedInboxUrl, t)
  39 }
  40
  41 async function sendUndoLikeToVideoFollowers (byAccount: AccountInstance, video: VideoInstance, t: Transaction) {
  42   const likeUrl = getVideoLikeActivityPubUrl(byAccount, video)
  43   const undoUrl = getUndoActivityPubUrl(likeUrl)
  44
  45   const toAccountsFollowers = await getAccountsInvolvedInVideo(video)
  46   const audience = getObjectFollowersAudience(toAccountsFollowers)
  47   const object = await likeActivityData(likeUrl, byAccount, video)
  48   const data = await undoActivityData(undoUrl, byAccount, object, audience)
  49
  50   const followersException = [ byAccount ]
  51   return broadcastToFollowers(data, byAccount, toAccountsFollowers, t, followersException)
  52 }
  53
  54 async function sendUndoDislikeToOrigin (byAccount: AccountInstance, video: VideoInstance, t: Transaction) {
  55   const dislikeUrl = getVideoDislikeActivityPubUrl(byAccount, video)
  56   const undoUrl = getUndoActivityPubUrl(dislikeUrl)
  57
  58   const dislikeActivity = createDislikeActivityData(byAccount, video)
  59   const object = await createActivityData(undoUrl, byAccount, dislikeActivity)
  60
  61   const data = await undoActivityData(undoUrl, byAccount, object)
  62
  63   return unicastTo(data, byAccount, video.VideoChannel.Account.sharedInboxUrl, t)
  64 }
  65
  66 async function sendUndoDislikeToVideoFollowers (byAccount: AccountInstance, video: VideoInstance, t: Transaction) {
  67   const dislikeUrl = getVideoDislikeActivityPubUrl(byAccount, video)
  68   const undoUrl = getUndoActivityPubUrl(dislikeUrl)
  69
  70   const dislikeActivity = createDislikeActivityData(byAccount, video)
  71   const object = await createActivityData(undoUrl, byAccount, dislikeActivity)
  72
  73   const data = await undoActivityData(undoUrl, byAccount, object)
  74
  75   const toAccountsFollowers = await getAccountsInvolvedInVideo(video)
  76
  77   const followersException = [ byAccount ]
  78   return broadcastToFollowers(data, byAccount, toAccountsFollowers, t, followersException)
  79 }
  80
  81 // ---------------------------------------------------------------------------
  82
  83 export {
  84   sendUndoFollow,
  85   sendUndoLikeToOrigin,
  86   sendUndoLikeToVideoFollowers,
  87   sendUndoDislikeToOrigin,
  88   sendUndoDislikeToVideoFollowers
  89 }
  90
  91 // ---------------------------------------------------------------------------
  92
  93 async function undoActivityData (
  94   url: string,
  95   byAccount: AccountInstance,
  96   object: ActivityFollow | ActivityLike | ActivityCreate,
  97   audience?: ActivityAudience
  98 ) {
  99   if (!audience) {
 100     audience = await getAudience(byAccount)
 101   }
 102
 103   const activity: ActivityUndo = {
 104     type: 'Undo',
 105     id: url,
 106     actor: byAccount.url,
 107     to: audience.to,
 108     cc: audience.cc,
 109     object
 110   }
 111
 112   return activity
 113 }