import { getServerActor } from '@server/models/application/application' import { ActivityFollow } from '../../../../shared/models/activitypub' import { retryTransactionWrapper } from '../../../helpers/database-utils' import { logger } from '../../../helpers/logger' import { CONFIG } from '../../../initializers/config' import { sequelizeTypescript } from '../../../initializers/database' import { getAPId } from '../../../lib/activitypub/activity' import { ActorModel } from '../../../models/actor/actor' import { ActorFollowModel } from '../../../models/actor/actor-follow' import { APProcessorOptions } from '../../../types/activitypub-processor.model' import { MActorFollowActors, MActorSignature } from '../../../types/models' import { Notifier } from '../../notifier' import { autoFollowBackIfNeeded } from '../follow' import { sendAccept, sendReject } from '../send' async function processFollowActivity (options: APProcessorOptions) { const { activity, byActor } = options const activityId = activity.id const objectId = getAPId(activity.object) return retryTransactionWrapper(processFollow, byActor, activityId, objectId) } // --------------------------------------------------------------------------- export { processFollowActivity } // --------------------------------------------------------------------------- async function processFollow (byActor: MActorSignature, activityId: string, targetActorURL: string) { const { actorFollow, created, isFollowingInstance, targetActor } = await sequelizeTypescript.transaction(async t => { const targetActor = await ActorModel.loadByUrlAndPopulateAccountAndChannel(targetActorURL, t) if (!targetActor) throw new Error('Unknown actor') if (targetActor.isOwned() === false) throw new Error('This is not a local actor.') const serverActor = await getServerActor() const isFollowingInstance = targetActor.id === serverActor.id if (isFollowingInstance && CONFIG.FOLLOWERS.INSTANCE.ENABLED === false) { logger.info('Rejecting %s because instance followers are disabled.', targetActor.url) sendReject(activityId, byActor, targetActor) return { actorFollow: undefined as MActorFollowActors } } const [ actorFollow, created ] = await ActorFollowModel.findOrCreateCustom({ byActor, targetActor, activityId, state: CONFIG.FOLLOWERS.INSTANCE.MANUAL_APPROVAL ? 'pending' : 'accepted', transaction: t }) // Set the follow as accepted if the remote actor follows a channel or account // Or if the instance automatically accepts followers if (actorFollow.state !== 'accepted' && (isFollowingInstance === false || CONFIG.FOLLOWERS.INSTANCE.MANUAL_APPROVAL === false)) { actorFollow.state = 'accepted' await actorFollow.save({ transaction: t }) } // Before PeerTube V3 we did not save the follow ID. Try to fix these old follows if (!actorFollow.url) { actorFollow.url = activityId await actorFollow.save({ transaction: t }) } actorFollow.ActorFollower = byActor actorFollow.ActorFollowing = targetActor // Target sends to actor he accepted the follow request if (actorFollow.state === 'accepted') { sendAccept(actorFollow) await autoFollowBackIfNeeded(actorFollow, t) } return { actorFollow, created, isFollowingInstance, targetActor } }) // Rejected if (!actorFollow) return if (created) { const follower = await ActorModel.loadFull(byActor.id) const actorFollowFull = Object.assign(actorFollow, { ActorFollowing: targetActor, ActorFollower: follower }) if (isFollowingInstance) { Notifier.Instance.notifyOfNewInstanceFollow(actorFollowFull) } else { Notifier.Instance.notifyOfNewUserFollow(actorFollowFull) } } logger.info('Actor %s is followed by actor %s.', targetActorURL, byActor.url) }