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

   1 import { Transaction } from 'sequelize'
   2 import { 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   getVideoFollowersAudience,
  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)
  18   const audience = getOriginVideoAudience(video, accountsInvolvedInVideo)
  19   const data = await likeActivityData(url, byAccount, video, 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)
  28   const audience = getVideoFollowersAudience(accountsInvolvedInVideo)
  29   const data = await likeActivityData(url, byAccount, video, audience)
  30
  31   const toAccountsFollowers = await getAccountsInvolvedInVideo(video)
  32
  33   const followersException = [ byAccount ]
  34   return broadcastToFollowers(data, byAccount, toAccountsFollowers, t, followersException)
  35 }
  36
  37 async function likeActivityData (url: string, byAccount: AccountInstance, video: VideoInstance, audience?: { to: string[], cc: string[] }) {
  38   if (!audience) {
  39     audience = await getAudience(byAccount)
  40   }
  41
  42   const activity: ActivityLike = {
  43     type: 'Like',
  44     id: url,
  45     actor: byAccount.url,
  46     to: audience.to,
  47     cc: audience.cc,
  48     object: video.url
  49   }
  50
  51   return activity
  52 }
  53
  54 // ---------------------------------------------------------------------------
  55
  56 export {
  57   sendLikeToOrigin,
  58   sendLikeToVideoFollowers,
  59   likeActivityData
  60 }