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

   1 import { Transaction } from 'sequelize'
   2 import { ActivityAnnounce, ActivityAudience } from '../../../../shared/models/activitypub'
   3 import { ActorModel } from '../../../models/activitypub/actor'
   4 import { VideoModel } from '../../../models/video/video'
   5 import { getAnnounceActivityPubUrl } from '../url'
   6 import {
   7   broadcastToFollowers,
   8   getActorsInvolvedInVideo,
   9   getAudience,
  10   getObjectFollowersAudience,
  11   getOriginVideoAudience,
  12   unicastTo
  13 } from './misc'
  14 import { createActivityData } from './send-create'
  15
  16 async function buildVideoAnnounceToFollowers (byActor: ActorModel, video: VideoModel, t: Transaction) {
  17   const url = getAnnounceActivityPubUrl(video.url, byActor)
  18   const announcedObject = video.url
  19
  20   const accountsToForwardView = await getActorsInvolvedInVideo(video, t)
  21   const audience = getObjectFollowersAudience(accountsToForwardView)
  22   return announceActivityData(url, byActor, announcedObject, t, audience)
  23 }
  24
  25 async function sendVideoAnnounceToFollowers (byActor: ActorModel, video: VideoModel, t: Transaction) {
  26   const data = await buildVideoAnnounceToFollowers(byActor, video, t)
  27
  28   return broadcastToFollowers(data, byActor, [ byActor ], t)
  29 }
  30
  31 async function sendVideoAnnounceToOrigin (byActor: ActorModel, video: VideoModel, t: Transaction) {
  32   const url = getAnnounceActivityPubUrl(video.url, byActor)
  33
  34   const videoObject = video.toActivityPubObject()
  35   const announcedActivity = await createActivityData(url, video.VideoChannel.Account.Actor, videoObject, t)
  36
  37   const actorsInvolvedInVideo = await getActorsInvolvedInVideo(video, t)
  38   const audience = getOriginVideoAudience(video, actorsInvolvedInVideo)
  39   const data = await createActivityData(url, byActor, announcedActivity, t, audience)
  40
  41   return unicastTo(data, byActor, video.VideoChannel.Account.Actor.sharedInboxUrl)
  42 }
  43
  44 async function announceActivityData (
  45   url: string,
  46   byActor: ActorModel,
  47   object: string,
  48   t: Transaction,
  49   audience?: ActivityAudience
  50 ): Promise<ActivityAnnounce> {
  51   if (!audience) {
  52     audience = await getAudience(byActor, t)
  53   }
  54
  55   return {
  56     type: 'Announce',
  57     to: audience.to,
  58     cc: audience.cc,
  59     id: url,
  60     actor: byActor.url,
  61     object
  62   }
  63 }
  64
  65 // ---------------------------------------------------------------------------
  66
  67 export {
  68   sendVideoAnnounceToFollowers,
  69   sendVideoAnnounceToOrigin,
  70   announceActivityData,
  71   buildVideoAnnounceToFollowers
  72 }