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 { getVideoDislikeActivityPubUrlByLocalActor, getVideoLikeActivityPubUrlByLocalActor } 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   await Bluebird.map(ratesUrl, async rateUrl => {
  17     try {
  18       // Fetch url
  19       const { body } = await doRequest<any>({
  20         uri: rateUrl,
  21         json: true,
  22         activityPub: true
  23       })
  24       if (!body || !body.actor) throw new Error('Body or body actor is invalid')
  25
  26       const actorUrl = getAPId(body.actor)
  27       if (checkUrlsSameHost(actorUrl, rateUrl) !== true) {
  28         throw new Error(`Rate url ${rateUrl} has not the same host than actor url ${actorUrl}`)
  29       }
  30
  31       if (checkUrlsSameHost(body.id, rateUrl) !== true) {
  32         throw new Error(`Rate url ${rateUrl} host is different from the AP object id ${body.id}`)
  33       }
  34
  35       const actor = await getOrCreateActorAndServerAndModel(actorUrl)
  36
  37       const entry = {
  38         videoId: video.id,
  39         accountId: actor.Account.id,
  40         type: rate,
  41         url: body.id
  42       }
  43
  44       // Video "likes"/"dislikes" will be updated by the caller
  45       await AccountVideoRateModel.upsert(entry)
  46     } catch (err) {
  47       logger.warn('Cannot add rate %s.', rateUrl, { err })
  48     }
  49   }, { concurrency: CRAWL_REQUEST_CONCURRENCY })
  50 }
  51
  52 async function sendVideoRateChange (
  53   account: MAccountActor,
  54   video: MVideoAccountLight,
  55   likes: number,
  56   dislikes: number,
  57   t: Transaction
  58 ) {
  59   const actor = account.Actor
  60
  61   // Keep the order: first we undo and then we create
  62
  63   // Undo Like
  64   if (likes < 0) await sendUndoLike(actor, video, t)
  65   // Undo Dislike
  66   if (dislikes < 0) await sendUndoDislike(actor, video, t)
  67
  68   // Like
  69   if (likes > 0) await sendLike(actor, video, t)
  70   // Dislike
  71   if (dislikes > 0) await sendDislike(actor, video, t)
  72 }
  73
  74 function getLocalRateUrl (rateType: VideoRateType, actor: MActorUrl, video: MVideoId) {
  75   return rateType === 'like'
  76     ? getVideoLikeActivityPubUrlByLocalActor(actor, video)
  77     : getVideoDislikeActivityPubUrlByLocalActor(actor, video)
  78 }
  79
  80 export {
  81   getLocalRateUrl,
  82   createRates,
  83   sendVideoRateChange
  84 }