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

   1 import { Transaction } from 'sequelize'
   2 import { ActivityAudience, ActivityLike } from '../../../../shared/models/activitypub/activity'
   3 import { AccountInstance, VideoInstance } from '../../../models'
   4 import { getVideoLikeActivityPubUrl } from '../url'
   5 import {
   6   broadcastToFollowers,
   7   getAccountsInvolvedInVideo,
   8   getAudience,
   9   getOriginVideoAudience,
  10   getObjectFollowersAudience,
  11   unicastTo
  12 } from './misc'
  13
  14 async function sendLikeToOrigin (byAccount: AccountInstance, video: VideoInstance, t: Transaction) {
  15   const url = getVideoLikeActivityPubUrl(byAccount, video)
  16
  17   const accountsInvolvedInVideo = await getAccountsInvolvedInVideo(video, t)
  18   const audience = getOriginVideoAudience(video, accountsInvolvedInVideo)
  19   const data = await likeActivityData(url, byAccount, video, t, audience)
  20
  21   return unicastTo(data, byAccount, video.VideoChannel.Account.sharedInboxUrl, t)
  22 }
  23
  24 async function sendLikeToVideoFollowers (byAccount: AccountInstance, video: VideoInstance, t: Transaction) {
  25   const url = getVideoLikeActivityPubUrl(byAccount, video)
  26
  27   const accountsInvolvedInVideo = await getAccountsInvolvedInVideo(video, t)
  28   const audience = getObjectFollowersAudience(accountsInvolvedInVideo)
  29   const data = await likeActivityData(url, byAccount, video, t, audience)
  30
  31   const followersException = [ byAccount ]
  32   return broadcastToFollowers(data, byAccount, accountsInvolvedInVideo, t, followersException)
  33 }
  34
  35 async function likeActivityData (
  36   url: string,
  37   byAccount: AccountInstance,
  38   video: VideoInstance,
  39   t: Transaction,
  40   audience?: ActivityAudience
  41 ) {
  42   if (!audience) {
  43     audience = await getAudience(byAccount, t)
  44   }
  45
  46   const activity: ActivityLike = {
  47     type: 'Like',
  48     id: url,
  49     actor: byAccount.url,
  50     to: audience.to,
  51     cc: audience.cc,
  52     object: video.url
  53   }
  54
  55   return activity
  56 }
  57
  58 // ---------------------------------------------------------------------------
  59
  60 export {
  61   sendLikeToOrigin,
  62   sendLikeToVideoFollowers,
  63   likeActivityData
  64 }