server/lib/activitypub/process/process.ts

   1 import { Activity, ActivityType } from '../../../../shared/models/activitypub'
   2 import { checkUrlsSameHost, 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 (
  29   activities: Activity[],
  30   options: {
  31     signatureActor?: ActorModel
  32     inboxActor?: ActorModel
  33     outboxUrl?: string
  34   } = {}) {
  35   const actorsCache: { [ url: string ]: ActorModel } = {}
  36
  37   for (const activity of activities) {
  38     if (!options.signatureActor && [ 'Create', 'Announce', 'Like' ].indexOf(activity.type) === -1) {
  39       logger.error('Cannot process activity %s (type: %s) without the actor signature.', activity.id, activity.type)
  40       continue
  41     }
  42
  43     const actorUrl = getActorUrl(activity.actor)
  44
  45     // When we fetch remote data, we don't have signature
  46     if (options.signatureActor && actorUrl !== options.signatureActor.url) {
  47       logger.warn('Signature mismatch between %s and %s, skipping.', actorUrl, options.signatureActor.url)
  48       continue
  49     }
  50
  51     if (options.outboxUrl && checkUrlsSameHost(options.outboxUrl, actorUrl) !== true) {
  52       logger.warn('Host mismatch between outbox URL %s and actor URL %s, skipping.', options.outboxUrl, actorUrl)
  53       continue
  54     }
  55
  56     const byActor = options.signatureActor || actorsCache[actorUrl] || await getOrCreateActorAndServerAndModel(actorUrl)
  57     actorsCache[actorUrl] = byActor
  58
  59     const activityProcessor = processActivity[activity.type]
  60     if (activityProcessor === undefined) {
  61       logger.warn('Unknown activity type %s.', activity.type, { activityId: activity.id })
  62       continue
  63     }
  64
  65     try {
  66       await activityProcessor(activity, byActor, options.inboxActor)
  67     } catch (err) {
  68       logger.warn('Cannot process activity %s.', activity.type, { err })
  69     }
  70   }
  71 }
  72
  73 export {
  74   processActivities
  75 }