-import { ActivityUndo } from '../../../../shared/models/activitypub/activity'
+import { ActivityFollow, ActivityLike, ActivityUndo } from '../../../../shared/models/activitypub/activity'
+import { DislikeObject } from '../../../../shared/models/activitypub/objects/dislike-object'
+import { retryTransactionWrapper } from '../../../helpers/database-utils'
import { logger } from '../../../helpers/logger'
import { database as db } from '../../../initializers'
+import { forwardActivity } from '../send/misc'
async function processUndoActivity (activity: ActivityUndo) {
const activityToUndo = activity.object
- if (activityToUndo.type === 'Follow') {
- const follower = await db.Account.loadByUrl(activity.actor)
- const following = await db.Account.loadByUrl(activityToUndo.object)
- const accountFollow = await db.AccountFollow.loadByAccountAndTarget(follower.id, following.id)
-
- if (!accountFollow) throw new Error(`'Unknown account follow ${follower.id} -> ${following.id}.`)
-
- await accountFollow.destroy()
-
- return undefined
+ if (activityToUndo.type === 'Like') {
+ return processUndoLike(activity.actor, activity)
+ } else if (activityToUndo.type === 'Create' && activityToUndo.object.type === 'Dislike') {
+ return processUndoDislike(activity.actor, activity)
+ } else if (activityToUndo.type === 'Follow') {
+ return processUndoFollow(activity.actor, activityToUndo)
}
logger.warn('Unknown activity object type %s -> %s when undo activity.', activityToUndo.type, { activity: activity.id })
}
// ---------------------------------------------------------------------------
+
+function processUndoLike (actor: string, activity: ActivityUndo) {
+ const options = {
+ arguments: [ actor, activity ],
+ errorMessage: 'Cannot undo like with many retries.'
+ }
+
+ return retryTransactionWrapper(undoLike, options)
+}
+
+function undoLike (actor: string, activity: ActivityUndo) {
+ const likeActivity = activity.object as ActivityLike
+
+ return db.sequelize.transaction(async t => {
+ const byAccount = await db.Account.loadByUrl(actor, t)
+ if (!byAccount) throw new Error('Unknown account ' + actor)
+
+ const video = await db.Video.loadByUrlAndPopulateAccount(likeActivity.object, t)
+ if (!video) throw new Error('Unknown video ' + likeActivity.actor)
+
+ const rate = await db.AccountVideoRate.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 ]
+ await forwardActivity(activity, t, exceptions)
+ }
+ })
+}
+
+function processUndoDislike (actor: string, activity: ActivityUndo) {
+ const options = {
+ arguments: [ actor, activity ],
+ errorMessage: 'Cannot undo dislike with many retries.'
+ }
+
+ return retryTransactionWrapper(undoDislike, options)
+}
+
+function undoDislike (actor: string, activity: ActivityUndo) {
+ const dislike = activity.object.object as DislikeObject
+
+ return db.sequelize.transaction(async t => {
+ const byAccount = await db.Account.loadByUrl(actor, t)
+ if (!byAccount) throw new Error('Unknown account ' + actor)
+
+ const video = await db.Video.loadByUrlAndPopulateAccount(dislike.object, t)
+ if (!video) throw new Error('Unknown video ' + dislike.actor)
+
+ const rate = await db.AccountVideoRate.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 ]
+ await forwardActivity(activity, t, exceptions)
+ }
+ })
+}
+
+function processUndoFollow (actor: string, followActivity: ActivityFollow) {
+ const options = {
+ arguments: [ actor, followActivity ],
+ errorMessage: 'Cannot undo follow with many retries.'
+ }
+
+ return retryTransactionWrapper(undoFollow, options)
+}
+
+function undoFollow (actor: string, followActivity: ActivityFollow) {
+ return db.sequelize.transaction(async t => {
+ const follower = await db.Account.loadByUrl(actor, t)
+ const following = await db.Account.loadByUrl(followActivity.object, t)
+ const accountFollow = await db.AccountFollow.loadByAccountAndTarget(follower.id, following.id, t)
+
+ if (!accountFollow) throw new Error(`'Unknown account follow ${follower.id} -> ${following.id}.`)
+
+ await accountFollow.destroy({ transaction: t })
+
+ return undefined
+ })
+}