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import { ActivityFollow } from '../../../../shared/models/activitypub'
import { retryTransactionWrapper } from '../../../helpers/database-utils'
import { logger } from '../../../helpers/logger'
import { sequelizeTypescript } from '../../../initializers/database'
import { ActorModel } from '../../../models/activitypub/actor'
import { ActorFollowModel } from '../../../models/activitypub/actor-follow'
import { sendAccept, sendReject } from '../send'
import { Notifier } from '../../notifier'
import { getAPId } from '../../../helpers/activitypub'
import { CONFIG } from '../../../initializers/config'
import { APProcessorOptions } from '../../../types/activitypub-processor.model'
import { MActorFollowActors, MActorSignature } from '../../../types/models'
import { autoFollowBackIfNeeded } from '../follow'
import { getServerActor } from '@server/models/application/application'
async function processFollowActivity (options: APProcessorOptions<ActivityFollow>) {
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)
await sendReject(activityId, byActor, targetActor)
return { actorFollow: undefined as MActorFollowActors }
}
const [ actorFollow, created ] = await ActorFollowModel.findOrCreate<MActorFollowActors>({
where: {
actorId: byActor.id,
targetActorId: targetActor.id
},
defaults: {
actorId: byActor.id,
targetActorId: targetActor.id,
url: 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 })
}
actorFollow.ActorFollower = byActor
actorFollow.ActorFollowing = targetActor
// Target sends to actor he accepted the follow request
if (actorFollow.state === 'accepted') {
await sendAccept(actorFollow)
await autoFollowBackIfNeeded(actorFollow)
}
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)
}
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