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