server/lib/activitypub/audience.ts


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import { ActivityAudience } from '../../../shared/models/activitypub'
import { ACTIVITY_PUB } from '../../initializers/constants'
import { MActorFollowersUrl } from '../../types/models'

function getAudience (actorSender: MActorFollowersUrl, isPublic = true) {
  return buildAudience([ actorSender.followersUrl ], isPublic)
}

function buildAudience (followerUrls: string[], isPublic = true) {
  let to: string[] = []
  let cc: string[] = []

  if (isPublic) {
    to = [ ACTIVITY_PUB.PUBLIC ]
    cc = followerUrls
  } else { // Unlisted
    to = []
    cc = []
  }

  return { to, cc }
}

function audiencify<T> (object: T, audience: ActivityAudience) {
  return Object.assign(object, audience)
}

// ---------------------------------------------------------------------------

export {
  buildAudience,
  getAudience,
  audiencify
}