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       // Fetch url
  19       const { body } = await doJSONRequest<any>(rateUrl, { activityPub: true })
  20       if (!body || !body.actor) throw new Error('Body or body actor is invalid')
  21
  22       const actorUrl = getAPId(body.actor)
  23       if (checkUrlsSameHost(actorUrl, rateUrl) !== true) {
  24         throw new Error(`Rate url ${rateUrl} has not the same host than actor url ${actorUrl}`)
  25       }
  26
  27       if (checkUrlsSameHost(body.id, rateUrl) !== true) {
  28         throw new Error(`Rate url ${rateUrl} host is different from the AP object id ${body.id}`)
  29       }
  30
  31       const actor = await getOrCreateActorAndServerAndModel(actorUrl)
  32
  33       const entry = {
  34         videoId: video.id,
  35         accountId: actor.Account.id,
  36         type: rate,
  37         url: body.id
  38       }
  39
  40       // Video "likes"/"dislikes" will be updated by the caller
  41       await AccountVideoRateModel.upsert(entry)
  42     } catch (err) {
  43       logger.warn('Cannot add rate %s.', rateUrl, { err })
  44     }
  45   }, { concurrency: CRAWL_REQUEST_CONCURRENCY })
  46 }
  47
  48 async function sendVideoRateChange (
  49   account: MAccountActor,
  50   video: MVideoAccountLight,
  51   likes: number,
  52   dislikes: number,
  53   t: Transaction
  54 ) {
  55   const actor = account.Actor
  56
  57   // Keep the order: first we undo and then we create
  58
  59   // Undo Like
  60   if (likes < 0) await sendUndoLike(actor, video, t)
  61   // Undo Dislike
  62   if (dislikes < 0) await sendUndoDislike(actor, video, t)
  63
  64   // Like
  65   if (likes > 0) await sendLike(actor, video, t)
  66   // Dislike
  67   if (dislikes > 0) await sendDislike(actor, video, t)
  68 }
  69
  70 function getLocalRateUrl (rateType: VideoRateType, actor: MActorUrl, video: MVideoId) {
  71   return rateType === 'like'
  72     ? getVideoLikeActivityPubUrlByLocalActor(actor, video)
  73     : getVideoDislikeActivityPubUrlByLocalActor(actor, video)
  74 }
  75
  76 export {
  77   getLocalRateUrl,
  78   createRates,
  79   sendVideoRateChange
  80 }