import { ActivityFollow } from '../../../../shared/models/activitypub' import { retryTransactionWrapper } from '../../../helpers/database-utils' import { logger } from '../../../helpers/logger' import { sequelizeTypescript } from '../../../initializers' import { ActorModel } from '../../../models/activitypub/actor' import { ActorFollowModel } from '../../../models/activitypub/actor-follow' import { getOrCreateActorAndServerAndModel } from '../actor' import { sendAccept } from '../send' async function processFollowActivity (activity: ActivityFollow) { const activityObject = activity.object const actor = await getOrCreateActorAndServerAndModel(activity.actor) return processFollow(actor, activityObject) } // --------------------------------------------------------------------------- export { processFollowActivity } // --------------------------------------------------------------------------- function processFollow (actor: ActorModel, targetActorURL: string) { const options = { arguments: [ actor, targetActorURL ], errorMessage: 'Cannot follow with many retries.' } return retryTransactionWrapper(follow, options) } async function follow (actor: ActorModel, targetActorURL: string) { await sequelizeTypescript.transaction(async t => { const targetActor = await ActorModel.loadByUrl(targetActorURL, t) if (!targetActor) throw new Error('Unknown actor') if (targetActor.isOwned() === false) throw new Error('This is not a local actor.') const [ actorFollow ] = await ActorFollowModel.findOrCreate({ where: { actorId: actor.id, targetActorId: targetActor.id }, defaults: { actorId: actor.id, targetActorId: targetActor.id, state: 'accepted' }, transaction: t }) actorFollow.ActorFollower = actor actorFollow.ActorFollowing = targetActor if (actorFollow.state !== 'accepted') { actorFollow.state = 'accepted' await actorFollow.save({ transaction: t }) } actorFollow.ActorFollower = actor actorFollow.ActorFollowing = targetActor // Target sends to actor he accepted the follow request return sendAccept(actorFollow, t) }) logger.info('Actor %s is followed by actor %s.', targetActorURL, actor.url) }