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