server/lib/job-queue/handlers/activitypub-follow.ts

   1 import * as Bull from 'bull'
   2 import { logger } from '../../../helpers/logger'
   3 import { getServerActor } from '../../../helpers/utils'
   4 import { REMOTE_SCHEME, sequelizeTypescript, SERVER_ACTOR_NAME } from '../../../initializers'
   5 import { sendFollow } from '../../activitypub/send'
   6 import { sanitizeHost } from '../../../helpers/core-utils'
   7 import { loadActorUrlOrGetFromWebfinger } from '../../../helpers/webfinger'
   8 import { getOrCreateActorAndServerAndModel } from '../../activitypub/actor'
   9 import { retryTransactionWrapper } from '../../../helpers/database-utils'
  10 import { ActorFollowModel } from '../../../models/activitypub/actor-follow'
  11 import { ActorModel } from '../../../models/activitypub/actor'
  12
  13 export type ActivitypubFollowPayload = {
  14   host: string
  15 }
  16
  17 async function processActivityPubFollow (job: Bull.Job) {
  18   const payload = job.data as ActivitypubFollowPayload
  19   const host = payload.host
  20
  21   logger.info('Processing ActivityPub follow in job %d.', job.id)
  22
  23   const sanitizedHost = sanitizeHost(host, REMOTE_SCHEME.HTTP)
  24
  25   const actorUrl = await loadActorUrlOrGetFromWebfinger(SERVER_ACTOR_NAME, sanitizedHost)
  26   const targetActor = await getOrCreateActorAndServerAndModel(actorUrl)
  27
  28   const fromActor = await getServerActor()
  29
  30   return retryTransactionWrapper(follow, fromActor, targetActor)
  31 }
  32 // ---------------------------------------------------------------------------
  33
  34 export {
  35   processActivityPubFollow
  36 }
  37
  38 // ---------------------------------------------------------------------------
  39
  40 function follow (fromActor: ActorModel, targetActor: ActorModel) {
  41   if (fromActor.id === targetActor.id) {
  42     throw new Error('Follower is the same than target actor.')
  43   }
  44
  45   return sequelizeTypescript.transaction(async t => {
  46     const [ actorFollow ] = await ActorFollowModel.findOrCreate({
  47       where: {
  48         actorId: fromActor.id,
  49         targetActorId: targetActor.id
  50       },
  51       defaults: {
  52         state: 'pending',
  53         actorId: fromActor.id,
  54         targetActorId: targetActor.id
  55       },
  56       transaction: t
  57     })
  58     actorFollow.ActorFollowing = targetActor
  59     actorFollow.ActorFollower = fromActor
  60
  61     // Send a notification to remote server if our follow is not already accepted
  62     if (actorFollow.state !== 'accepted') await sendFollow(actorFollow)
  63   })
  64 }