1 import { sanitizeAndCheckActorObject } from '@server/helpers/custom-validators/activitypub/actor'
2 import { logger } from '@server/helpers/logger'
3 import { doJSONRequest } from '@server/helpers/requests'
4 import { ActivityPubActor, ActivityPubOrderedCollection } from '@shared/models'
5 import { checkUrlsSameHost } from '../../url'
7 async function fetchRemoteActor (actorUrl: string): Promise<{ statusCode: number, actorObject: ActivityPubActor }> {
8 logger.info('Fetching remote actor %s.', actorUrl)
10 const { body, statusCode } = await doJSONRequest<ActivityPubActor>(actorUrl, { activityPub: true })
12 if (sanitizeAndCheckActorObject(body) === false) {
13 logger.debug('Remote actor JSON is not valid.', { actorJSON: body })
14 return { actorObject: undefined, statusCode }
17 if (checkUrlsSameHost(body.id, actorUrl) !== true) {
18 logger.warn('Actor url %s has not the same host than its AP id %s', actorUrl, body.id)
19 return { actorObject: undefined, statusCode }
29 async function fetchActorFollowsCount (actorObject: ActivityPubActor) {
30 let followersCount = 0
31 let followingCount = 0
33 if (actorObject.followers) followersCount = await fetchActorTotalItems(actorObject.followers)
34 if (actorObject.following) followingCount = await fetchActorTotalItems(actorObject.following)
36 return { followersCount, followingCount }
39 // ---------------------------------------------------------------------------
41 fetchActorFollowsCount,
45 // ---------------------------------------------------------------------------
47 async function fetchActorTotalItems (url: string) {
49 const { body } = await doJSONRequest<ActivityPubOrderedCollection<unknown>>(url, { activityPub: true })
51 return body.totalItems || 0
53 logger.info('Cannot fetch remote actor count %s.', url, { err })