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

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