server/lib/activitypub/video-rates.ts

   1 import { Transaction } from 'sequelize'
   2 import { AccountModel } from '../../models/account/account'
   3 import { VideoModel } from '../../models/video/video'
   4 import { sendLike, sendUndoDislike, sendUndoLike } from './send'
   5 import { VideoRateType } from '../../../shared/models/videos'
   6 import * as Bluebird from 'bluebird'
   7 import { getOrCreateActorAndServerAndModel } from './actor'
   8 import { AccountVideoRateModel } from '../../models/account/account-video-rate'
   9 import { logger } from '../../helpers/logger'
  10 import { CRAWL_REQUEST_CONCURRENCY } from '../../initializers'
  11 import { doRequest } from '../../helpers/requests'
  12 import { checkUrlsSameHost, getAPId } from '../../helpers/activitypub'
  13 import { ActorModel } from '../../models/activitypub/actor'
  14 import { getVideoDislikeActivityPubUrl, getVideoLikeActivityPubUrl } from './url'
  15 import { sendDislike } from './send/send-dislike'
  16
  17 async function createRates (ratesUrl: string[], video: VideoModel, rate: VideoRateType) {
  18   let rateCounts = 0
  19
  20   await Bluebird.map(ratesUrl, async rateUrl => {
  21     try {
  22       // Fetch url
  23       const { body } = await doRequest({
  24         uri: rateUrl,
  25         json: true,
  26         activityPub: true
  27       })
  28       if (!body || !body.actor) throw new Error('Body or body actor is invalid')
  29
  30       const actorUrl = getAPId(body.actor)
  31       if (checkUrlsSameHost(actorUrl, rateUrl) !== true) {
  32         throw new Error(`Rate url ${rateUrl} has not the same host than actor url ${actorUrl}`)
  33       }
  34
  35       if (checkUrlsSameHost(body.id, rateUrl) !== true) {
  36         throw new Error(`Rate url ${rateUrl} host is different from the AP object id ${body.id}`)
  37       }
  38
  39       const actor = await getOrCreateActorAndServerAndModel(actorUrl)
  40
  41       const entry = {
  42         videoId: video.id,
  43         accountId: actor.Account.id,
  44         type: rate,
  45         url: body.id
  46       }
  47
  48       const created = await AccountVideoRateModel.upsert(entry)
  49
  50       if (created) rateCounts += 1
  51     } catch (err) {
  52       logger.warn('Cannot add rate %s.', rateUrl, { err })
  53     }
  54   }, { concurrency: CRAWL_REQUEST_CONCURRENCY })
  55
  56   logger.info('Adding %d %s to video %s.', rateCounts, rate, video.uuid)
  57
  58   // This is "likes" and "dislikes"
  59   if (rateCounts !== 0) await video.increment(rate + 's', { by: rateCounts })
  60
  61   return
  62 }
  63
  64 async function sendVideoRateChange (account: AccountModel,
  65                               video: VideoModel,
  66                               likes: number,
  67                               dislikes: number,
  68                               t: Transaction) {
  69   const actor = account.Actor
  70
  71   // Keep the order: first we undo and then we create
  72
  73   // Undo Like
  74   if (likes < 0) await sendUndoLike(actor, video, t)
  75   // Undo Dislike
  76   if (dislikes < 0) await sendUndoDislike(actor, video, t)
  77
  78   // Like
  79   if (likes > 0) await sendLike(actor, video, t)
  80   // Dislike
  81   if (dislikes > 0) await sendDislike(actor, video, t)
  82 }
  83
  84 function getRateUrl (rateType: VideoRateType, actor: ActorModel, video: VideoModel) {
  85   return rateType === 'like' ? getVideoLikeActivityPubUrl(actor, video) : getVideoDislikeActivityPubUrl(actor, video)
  86 }
  87
  88 export {
  89   getRateUrl,
  90   createRates,
  91   sendVideoRateChange
  92 }