server/lib/activitypub/process/process.ts

   1 import { Activity, ActivityType } from '../../../../shared/models/activitypub'
   2 import { getActorUrl } from '../../../helpers/activitypub'
   3 import { logger } from '../../../helpers/logger'
   4 import { ActorModel } from '../../../models/activitypub/actor'
   5 import { processAcceptActivity } from './process-accept'
   6 import { processAnnounceActivity } from './process-announce'
   7 import { processCreateActivity } from './process-create'
   8 import { processDeleteActivity } from './process-delete'
   9 import { processFollowActivity } from './process-follow'
  10 import { processLikeActivity } from './process-like'
  11 import { processRejectActivity } from './process-reject'
  12 import { processUndoActivity } from './process-undo'
  13 import { processUpdateActivity } from './process-update'
  14 import { getOrCreateActorAndServerAndModel } from '../actor'
  15
  16 const processActivity: { [ P in ActivityType ]: (activity: Activity, byActor: ActorModel, inboxActor?: ActorModel) => Promise<any> } = {
  17   Create: processCreateActivity,
  18   Update: processUpdateActivity,
  19   Delete: processDeleteActivity,
  20   Follow: processFollowActivity,
  21   Accept: processAcceptActivity,
  22   Reject: processRejectActivity,
  23   Announce: processAnnounceActivity,
  24   Undo: processUndoActivity,
  25   Like: processLikeActivity
  26 }
  27
  28 async function processActivities (activities: Activity[], signatureActor?: ActorModel, inboxActor?: ActorModel) {
  29   const actorsCache: { [ url: string ]: ActorModel } = {}
  30
  31   for (const activity of activities) {
  32     if (!signatureActor && [ 'Create', 'Announce', 'Like' ].indexOf(activity.type) === -1) {
  33       logger.error('Cannot process activity %s (type: %s) without the actor signature.', activity.id, activity.type)
  34       continue
  35     }
  36
  37     const actorUrl = getActorUrl(activity.actor)
  38
  39     // When we fetch remote data, we don't have signature
  40     if (signatureActor && actorUrl !== signatureActor.url) {
  41       logger.warn('Signature mismatch between %s and %s.', actorUrl, signatureActor.url)
  42       continue
  43     }
  44
  45     const byActor = signatureActor || actorsCache[actorUrl] || await getOrCreateActorAndServerAndModel(actorUrl)
  46     actorsCache[actorUrl] = byActor
  47
  48     const activityProcessor = processActivity[activity.type]
  49     if (activityProcessor === undefined) {
  50       logger.warn('Unknown activity type %s.', activity.type, { activityId: activity.id })
  51       continue
  52     }
  53
  54     try {
  55       await activityProcessor(activity, byActor, inboxActor)
  56     } catch (err) {
  57       logger.warn('Cannot process activity %s.', activity.type, { err })
  58     }
  59   }
  60 }
  61
  62 export {
  63   processActivities
  64 }