server/lib/activitypub/process/process.ts

   1 import { Activity, ActivityType } from '../../../../shared/models/activitypub'
   2 import { checkUrlsSameHost, getAPId } 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 import { processDislikeActivity } from './process-dislike'
  16 import { processFlagActivity } from './process-flag'
  17 import { processViewActivity } from './process-view'
  18 import { APProcessorOptions } from '../../../typings/activitypub-processor.model'
  19 import { SignatureActorModel } from '../../../typings/models'
  20
  21 const processActivity: { [ P in ActivityType ]: (options: APProcessorOptions<Activity>) => Promise<any> } = {
  22   Create: processCreateActivity,
  23   Update: processUpdateActivity,
  24   Delete: processDeleteActivity,
  25   Follow: processFollowActivity,
  26   Accept: processAcceptActivity,
  27   Reject: processRejectActivity,
  28   Announce: processAnnounceActivity,
  29   Undo: processUndoActivity,
  30   Like: processLikeActivity,
  31   Dislike: processDislikeActivity,
  32   Flag: processFlagActivity,
  33   View: processViewActivity
  34 }
  35
  36 async function processActivities (
  37   activities: Activity[],
  38   options: {
  39     signatureActor?: SignatureActorModel
  40     inboxActor?: ActorModel
  41     outboxUrl?: string
  42     fromFetch?: boolean
  43   } = {}
  44 ) {
  45   const { outboxUrl, signatureActor, inboxActor, fromFetch = false } = options
  46
  47   const actorsCache: { [ url: string ]: SignatureActorModel } = {}
  48
  49   for (const activity of activities) {
  50     if (!signatureActor && [ 'Create', 'Announce', 'Like' ].includes(activity.type) === false) {
  51       logger.error('Cannot process activity %s (type: %s) without the actor signature.', activity.id, activity.type)
  52       continue
  53     }
  54
  55     const actorUrl = getAPId(activity.actor)
  56
  57     // When we fetch remote data, we don't have signature
  58     if (signatureActor && actorUrl !== signatureActor.url) {
  59       logger.warn('Signature mismatch between %s and %s, skipping.', actorUrl, signatureActor.url)
  60       continue
  61     }
  62
  63     if (outboxUrl && checkUrlsSameHost(outboxUrl, actorUrl) !== true) {
  64       logger.warn('Host mismatch between outbox URL %s and actor URL %s, skipping.', outboxUrl, actorUrl)
  65       continue
  66     }
  67
  68     const byActor = signatureActor || actorsCache[actorUrl] || await getOrCreateActorAndServerAndModel(actorUrl)
  69     actorsCache[actorUrl] = byActor
  70
  71     const activityProcessor = processActivity[activity.type]
  72     if (activityProcessor === undefined) {
  73       logger.warn('Unknown activity type %s.', activity.type, { activityId: activity.id })
  74       continue
  75     }
  76
  77     try {
  78       await activityProcessor({ activity, byActor, inboxActor: inboxActor, fromFetch })
  79     } catch (err) {
  80       logger.warn('Cannot process activity %s.', activity.type, { err })
  81     }
  82   }
  83 }
  84
  85 export {
  86   processActivities
  87 }