server/lib/activitypub/video-rates.ts

   1 import { Transaction } from 'sequelize'
   2 import { sendLike, sendUndoDislike, sendUndoLike } from './send'
   3 import { VideoRateType } from '../../../shared/models/videos'
   4 import * as Bluebird from 'bluebird'
   5 import { getOrCreateActorAndServerAndModel } from './actor'
   6 import { AccountVideoRateModel } from '../../models/account/account-video-rate'
   7 import { logger } from '../../helpers/logger'
   8 import { CRAWL_REQUEST_CONCURRENCY } from '../../initializers/constants'
   9 import { doRequest } from '../../helpers/requests'
  10 import { checkUrlsSameHost, getAPId } from '../../helpers/activitypub'
  11 import { getVideoDislikeActivityPubUrl, getVideoLikeActivityPubUrl } from './url'
  12 import { sendDislike } from './send/send-dislike'
  13 import { MAccountActor, MActorUrl, MVideo, MVideoAccountLight, MVideoId } from '../../types/models'
  14
  15 async function createRates (ratesUrl: string[], video: MVideo, rate: VideoRateType) {
  16   let rateCounts = 0
  17
  18   await Bluebird.map(ratesUrl, async rateUrl => {
  19     try {
  20       // Fetch url
  21       const { body } = await doRequest<any>({
  22         uri: rateUrl,
  23         json: true,
  24         activityPub: true
  25       })
  26       if (!body || !body.actor) throw new Error('Body or body actor is invalid')
  27
  28       const actorUrl = getAPId(body.actor)
  29       if (checkUrlsSameHost(actorUrl, rateUrl) !== true) {
  30         throw new Error(`Rate url ${rateUrl} has not the same host than actor url ${actorUrl}`)
  31       }
  32
  33       if (checkUrlsSameHost(body.id, rateUrl) !== true) {
  34         throw new Error(`Rate url ${rateUrl} host is different from the AP object id ${body.id}`)
  35       }
  36
  37       const actor = await getOrCreateActorAndServerAndModel(actorUrl)
  38
  39       const entry = {
  40         videoId: video.id,
  41         accountId: actor.Account.id,
  42         type: rate,
  43         url: body.id
  44       }
  45
  46       const created = await AccountVideoRateModel.upsert(entry)
  47
  48       if (created) rateCounts += 1
  49     } catch (err) {
  50       logger.warn('Cannot add rate %s.', rateUrl, { err })
  51     }
  52   }, { concurrency: CRAWL_REQUEST_CONCURRENCY })
  53
  54   logger.info('Adding %d %s to video %s.', rateCounts, rate, video.uuid)
  55
  56   // This is "likes" and "dislikes"
  57   if (rateCounts !== 0) {
  58     const field = rate === 'like' ? 'likes' : 'dislikes'
  59     await video.increment(field, { by: rateCounts })
  60   }
  61 }
  62
  63 async function sendVideoRateChange (
  64   account: MAccountActor,
  65   video: MVideoAccountLight,
  66   likes: number,
  67   dislikes: number,
  68   t: Transaction
  69 ) {
  70   const actor = account.Actor
  71
  72   // Keep the order: first we undo and then we create
  73
  74   // Undo Like
  75   if (likes < 0) await sendUndoLike(actor, video, t)
  76   // Undo Dislike
  77   if (dislikes < 0) await sendUndoDislike(actor, video, t)
  78
  79   // Like
  80   if (likes > 0) await sendLike(actor, video, t)
  81   // Dislike
  82   if (dislikes > 0) await sendDislike(actor, video, t)
  83 }
  84
  85 function getRateUrl (rateType: VideoRateType, actor: MActorUrl, video: MVideoId) {
  86   return rateType === 'like'
  87     ? getVideoLikeActivityPubUrl(actor, video)
  88     : getVideoDislikeActivityPubUrl(actor, video)
  89 }
  90
  91 export {
  92   getRateUrl,
  93   createRates,
  94   sendVideoRateChange
  95 }