server/lib/activitypub/process/process-delete.ts

   1 import { ActivityDelete } from '../../../../shared/models/activitypub'
   2 import { retryTransactionWrapper } from '../../../helpers/database-utils'
   3 import { logger } from '../../../helpers/logger'
   4 import { sequelizeTypescript } from '../../../initializers'
   5 import { AccountModel } from '../../../models/account/account'
   6 import { ActorModel } from '../../../models/activitypub/actor'
   7 import { VideoModel } from '../../../models/video/video'
   8 import { VideoChannelModel } from '../../../models/video/video-channel'
   9 import { VideoCommentModel } from '../../../models/video/video-comment'
  10 import { forwardActivity } from '../send/utils'
  11
  12 async function processDeleteActivity (activity: ActivityDelete, byActor: ActorModel) {
  13   const objectUrl = typeof activity.object === 'string' ? activity.object : activity.object.id
  14
  15   if (activity.actor === objectUrl) {
  16     // We need more attributes (all the account and channel)
  17     const byActorFull = await ActorModel.loadByUrlAndPopulateAccountAndChannel(byActor.url)
  18
  19     if (byActorFull.type === 'Person') {
  20       if (!byActorFull.Account) throw new Error('Actor ' + byActorFull.url + ' is a person but we cannot find it in database.')
  21
  22       byActorFull.Account.Actor = await byActorFull.Account.$get('Actor') as ActorModel
  23       return retryTransactionWrapper(processDeleteAccount, byActorFull.Account)
  24     } else if (byActorFull.type === 'Group') {
  25       if (!byActorFull.VideoChannel) throw new Error('Actor ' + byActorFull.url + ' is a group but we cannot find it in database.')
  26
  27       byActorFull.VideoChannel.Actor = await byActorFull.VideoChannel.$get('Actor') as ActorModel
  28       return retryTransactionWrapper(processDeleteVideoChannel, byActorFull.VideoChannel)
  29     }
  30   }
  31
  32   {
  33     const videoCommentInstance = await VideoCommentModel.loadByUrlAndPopulateAccount(objectUrl)
  34     if (videoCommentInstance) {
  35       return retryTransactionWrapper(processDeleteVideoComment, byActor, videoCommentInstance, activity)
  36     }
  37   }
  38
  39   {
  40     const videoInstance = await VideoModel.loadByUrlAndPopulateAccount(objectUrl)
  41     if (videoInstance) {
  42       if (videoInstance.isOwned()) throw new Error(`Remote instance cannot delete owned video ${videoInstance.url}.`)
  43
  44       return retryTransactionWrapper(processDeleteVideo, byActor, videoInstance)
  45     }
  46   }
  47
  48   return undefined
  49 }
  50
  51 // ---------------------------------------------------------------------------
  52
  53 export {
  54   processDeleteActivity
  55 }
  56
  57 // ---------------------------------------------------------------------------
  58
  59 async function processDeleteVideo (actor: ActorModel, videoToDelete: VideoModel) {
  60   logger.debug('Removing remote video "%s".', videoToDelete.uuid)
  61
  62   await sequelizeTypescript.transaction(async t => {
  63     if (videoToDelete.VideoChannel.Account.Actor.id !== actor.id) {
  64       throw new Error('Account ' + actor.url + ' does not own video channel ' + videoToDelete.VideoChannel.Actor.url)
  65     }
  66
  67     await videoToDelete.destroy({ transaction: t })
  68   })
  69
  70   logger.info('Remote video with uuid %s removed.', videoToDelete.uuid)
  71 }
  72
  73 async function processDeleteAccount (accountToRemove: AccountModel) {
  74   logger.debug('Removing remote account "%s".', accountToRemove.Actor.uuid)
  75
  76   await sequelizeTypescript.transaction(async t => {
  77     await accountToRemove.destroy({ transaction: t })
  78   })
  79
  80   logger.info('Remote account with uuid %s removed.', accountToRemove.Actor.uuid)
  81 }
  82
  83 async function processDeleteVideoChannel (videoChannelToRemove: VideoChannelModel) {
  84   logger.debug('Removing remote video channel "%s".', videoChannelToRemove.Actor.uuid)
  85
  86   await sequelizeTypescript.transaction(async t => {
  87     await videoChannelToRemove.destroy({ transaction: t })
  88   })
  89
  90   logger.info('Remote video channel with uuid %s removed.', videoChannelToRemove.Actor.uuid)
  91 }
  92
  93 function processDeleteVideoComment (byActor: ActorModel, videoComment: VideoCommentModel, activity: ActivityDelete) {
  94   logger.debug('Removing remote video comment "%s".', videoComment.url)
  95
  96   return sequelizeTypescript.transaction(async t => {
  97     if (videoComment.Account.id !== byActor.Account.id) {
  98       throw new Error('Account ' + byActor.url + ' does not own video comment ' + videoComment.url)
  99     }
 100
 101     await videoComment.destroy({ transaction: t })
 102
 103     if (videoComment.Video.isOwned()) {
 104       // Don't resend the activity to the sender
 105       const exceptions = [ byActor ]
 106       await forwardActivity(activity, t, exceptions)
 107     }
 108
 109     logger.info('Remote video comment %s removed.', videoComment.url)
 110   })
 111 }