server/lib/activitypub/video-rates.ts

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