server/controllers/activitypub/outbox.ts

   1 import * as express from 'express'
   2 import { Activity } from '../../../shared/models/activitypub/activity'
   3 import { VideoPrivacy } from '../../../shared/models/videos'
   4 import { activityPubCollectionPagination, activityPubContextify } from '../../helpers/activitypub'
   5 import { logger } from '../../helpers/logger'
   6 import { announceActivityData, createActivityData } from '../../lib/activitypub/send'
   7 import { buildAudience } from '../../lib/activitypub/audience'
   8 import { asyncMiddleware, localAccountValidator } from '../../middlewares'
   9 import { AccountModel } from '../../models/account/account'
  10 import { ActorModel } from '../../models/activitypub/actor'
  11 import { VideoModel } from '../../models/video/video'
  12 import { activityPubResponse } from './utils'
  13
  14 const outboxRouter = express.Router()
  15
  16 outboxRouter.get('/accounts/:name/outbox',
  17   localAccountValidator,
  18   asyncMiddleware(outboxController)
  19 )
  20
  21 // ---------------------------------------------------------------------------
  22
  23 export {
  24   outboxRouter
  25 }
  26
  27 // ---------------------------------------------------------------------------
  28
  29 async function outboxController (req: express.Request, res: express.Response, next: express.NextFunction) {
  30   const account: AccountModel = res.locals.account
  31   const actor = account.Actor
  32   const actorOutboxUrl = account.Actor.url + '/outbox'
  33
  34   logger.info('Receiving outbox request for %s.', actorOutboxUrl)
  35
  36   const handler = (start: number, count: number) => buildActivities(actor, start, count)
  37   const json = await activityPubCollectionPagination(actorOutboxUrl, handler, req.query.page)
  38
  39   return activityPubResponse(activityPubContextify(json), res)
  40 }
  41
  42 async function buildActivities (actor: ActorModel, start: number, count: number) {
  43   const data = await VideoModel.listAllAndSharedByActorForOutbox(actor.id, start, count)
  44   const activities: Activity[] = []
  45
  46   // Avoid too many SQL requests
  47   const actors = data.data.map(v => v.VideoChannel.Account.Actor)
  48   actors.push(actor)
  49
  50   const followersMatrix = await ActorModel.getActorsFollowerSharedInboxUrls(actors, undefined)
  51
  52   for (const video of data.data) {
  53     const byActor = video.VideoChannel.Account.Actor
  54     const createActivityAudience = buildAudience(followersMatrix[byActor.id], video.privacy === VideoPrivacy.PUBLIC)
  55
  56     // This is a shared video
  57     if (video.VideoShares !== undefined && video.VideoShares.length !== 0) {
  58       const videoShare = video.VideoShares[0]
  59       const announceAudience = buildAudience(followersMatrix[actor.id], video.privacy === VideoPrivacy.PUBLIC)
  60       const announceActivity = await announceActivityData(videoShare.url, actor, video.url, undefined, announceAudience)
  61
  62       activities.push(announceActivity)
  63     } else {
  64       const videoObject = video.toActivityPubObject()
  65       const createActivity = await createActivityData(video.url, byActor, videoObject, undefined, createActivityAudience)
  66
  67       activities.push(createActivity)
  68     }
  69   }
  70
  71   return {
  72     data: activities,
  73     total: data.total
  74   }
  75 }