import { ActivityFollow, ActivityLike, ActivityUndo } from '../../../../shared/models/activitypub' import { DislikeObject } from '../../../../shared/models/activitypub/objects' import { getActorUrl } from '../../../helpers/activitypub' import { retryTransactionWrapper } from '../../../helpers/database-utils' import { logger } from '../../../helpers/logger' import { sequelizeTypescript } from '../../../initializers' import { AccountModel } from '../../../models/account/account' import { AccountVideoRateModel } from '../../../models/account/account-video-rate' import { ActorModel } from '../../../models/activitypub/actor' import { ActorFollowModel } from '../../../models/activitypub/actor-follow' import { forwardActivity } from '../send/misc' import { getOrCreateAccountAndVideoAndChannel } from '../videos' async function processUndoActivity (activity: ActivityUndo) { const activityToUndo = activity.object const actorUrl = getActorUrl(activity.actor) if (activityToUndo.type === 'Like') { return processUndoLike(actorUrl, activity) } else if (activityToUndo.type === 'Create' && activityToUndo.object.type === 'Dislike') { return processUndoDislike(actorUrl, activity) } else if (activityToUndo.type === 'Follow') { return processUndoFollow(actorUrl, activityToUndo) } logger.warn('Unknown activity object type %s -> %s when undo activity.', activityToUndo.type, { activity: activity.id }) return undefined } // --------------------------------------------------------------------------- export { processUndoActivity } // --------------------------------------------------------------------------- function processUndoLike (actorUrl: string, activity: ActivityUndo) { const options = { arguments: [ actorUrl, activity ], errorMessage: 'Cannot undo like with many retries.' } return retryTransactionWrapper(undoLike, options) } async function undoLike (actorUrl: string, activity: ActivityUndo) { const likeActivity = activity.object as ActivityLike const { video } = await getOrCreateAccountAndVideoAndChannel(likeActivity.object) return sequelizeTypescript.transaction(async t => { const byAccount = await AccountModel.loadByUrl(actorUrl, t) if (!byAccount) throw new Error('Unknown account ' + actorUrl) const rate = await AccountVideoRateModel.load(byAccount.id, video.id, t) if (!rate) throw new Error(`Unknown rate by account ${byAccount.id} for video ${video.id}.`) await rate.destroy({ transaction: t }) await video.decrement('likes', { transaction: t }) if (video.isOwned()) { // Don't resend the activity to the sender const exceptions = [ byAccount.Actor ] await forwardActivity(activity, t, exceptions) } }) } function processUndoDislike (actorUrl: string, activity: ActivityUndo) { const options = { arguments: [ actorUrl, activity ], errorMessage: 'Cannot undo dislike with many retries.' } return retryTransactionWrapper(undoDislike, options) } async function undoDislike (actorUrl: string, activity: ActivityUndo) { const dislike = activity.object.object as DislikeObject const { video } = await getOrCreateAccountAndVideoAndChannel(dislike.object) return sequelizeTypescript.transaction(async t => { const byAccount = await AccountModel.loadByUrl(actorUrl, t) if (!byAccount) throw new Error('Unknown account ' + actorUrl) const rate = await AccountVideoRateModel.load(byAccount.id, video.id, t) if (!rate) throw new Error(`Unknown rate by account ${byAccount.id} for video ${video.id}.`) await rate.destroy({ transaction: t }) await video.decrement('dislikes', { transaction: t }) if (video.isOwned()) { // Don't resend the activity to the sender const exceptions = [ byAccount.Actor ] await forwardActivity(activity, t, exceptions) } }) } function processUndoFollow (actorUrl: string, followActivity: ActivityFollow) { const options = { arguments: [ actorUrl, followActivity ], errorMessage: 'Cannot undo follow with many retries.' } return retryTransactionWrapper(undoFollow, options) } function undoFollow (actorUrl: string, followActivity: ActivityFollow) { return sequelizeTypescript.transaction(async t => { const follower = await ActorModel.loadByUrl(actorUrl, t) const following = await ActorModel.loadByUrl(followActivity.object, t) const actorFollow = await ActorFollowModel.loadByActorAndTarget(follower.id, following.id, t) if (!actorFollow) throw new Error(`'Unknown actor follow ${follower.id} -> ${following.id}.`) await actorFollow.destroy({ transaction: t }) return undefined }) }