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

   1 import { ActivityLike } from '../../../../shared/models/activitypub'
   2 import { retryTransactionWrapper } from '../../../helpers/database-utils'
   3 import { sequelizeTypescript } from '../../../initializers'
   4 import { AccountVideoRateModel } from '../../../models/account/account-video-rate'
   5 import { ActorModel } from '../../../models/activitypub/actor'
   6 import { forwardVideoRelatedActivity } from '../send/utils'
   7 import { getOrCreateVideoAndAccountAndChannel } from '../videos'
   8 import { getVideoLikeActivityPubUrl } from '../url'
   9
  10 async function processLikeActivity (activity: ActivityLike, byActor: ActorModel) {
  11   return retryTransactionWrapper(processLikeVideo, byActor, activity)
  12 }
  13
  14 // ---------------------------------------------------------------------------
  15
  16 export {
  17   processLikeActivity
  18 }
  19
  20 // ---------------------------------------------------------------------------
  21
  22 async function processLikeVideo (byActor: ActorModel, activity: ActivityLike) {
  23   const videoUrl = activity.object
  24
  25   const byAccount = byActor.Account
  26   if (!byAccount) throw new Error('Cannot create like with the non account actor ' + byActor.url)
  27
  28   const { video } = await getOrCreateVideoAndAccountAndChannel({ videoObject: videoUrl })
  29
  30   return sequelizeTypescript.transaction(async t => {
  31     const rate = {
  32       type: 'like' as 'like',
  33       videoId: video.id,
  34       accountId: byAccount.id
  35     }
  36     const [ , created ] = await AccountVideoRateModel.findOrCreate({
  37       where: rate,
  38       defaults: Object.assign({}, rate, { url: getVideoLikeActivityPubUrl(byActor, video) }),
  39       transaction: t
  40     })
  41     if (created === true) await video.increment('likes', { transaction: t })
  42
  43     if (video.isOwned() && created === true) {
  44       // Don't resend the activity to the sender
  45       const exceptions = [ byActor ]
  46
  47       await forwardVideoRelatedActivity(activity, t, exceptions, video)
  48     }
  49   })
  50 }