server/lib/activitypub/video-channels.ts

   1 import { VideoChannelObject } from '../../../shared/models/activitypub/objects'
   2 import { doRequest, logger } from '../../helpers'
   3 import { isVideoChannelObjectValid } from '../../helpers/custom-validators/activitypub'
   4 import { ACTIVITY_PUB } from '../../initializers'
   5 import { AccountModel } from '../../models/account/account'
   6 import { VideoChannelModel } from '../../models/video/video-channel'
   7 import { videoChannelActivityObjectToDBAttributes } from './process/misc'
   8
   9 async function getOrCreateVideoChannel (ownerAccount: AccountModel, videoChannelUrl: string) {
  10   let videoChannel = await VideoChannelModel.loadByUrl(videoChannelUrl)
  11
  12   // We don't have this account in our database, fetch it on remote
  13   if (!videoChannel) {
  14     videoChannel = await fetchRemoteVideoChannel(ownerAccount, videoChannelUrl)
  15     if (videoChannel === undefined) throw new Error('Cannot fetch remote video channel.')
  16
  17     // Save our new video channel in database
  18     await videoChannel.save()
  19   }
  20
  21   return videoChannel
  22 }
  23
  24 async function fetchRemoteVideoChannel (ownerAccount: AccountModel, videoChannelUrl: string) {
  25   const options = {
  26     uri: videoChannelUrl,
  27     method: 'GET',
  28     headers: {
  29       'Accept': ACTIVITY_PUB.ACCEPT_HEADER
  30     }
  31   }
  32
  33   logger.info('Fetching remote video channel %s.', videoChannelUrl)
  34
  35   let requestResult
  36   try {
  37     requestResult = await doRequest(options)
  38   } catch (err) {
  39     logger.warn('Cannot fetch remote video channel %s.', videoChannelUrl, err)
  40     return undefined
  41   }
  42
  43   const videoChannelJSON: VideoChannelObject = JSON.parse(requestResult.body)
  44   if (isVideoChannelObjectValid(videoChannelJSON) === false) {
  45     logger.debug('Remote video channel JSON is not valid.', { videoChannelJSON })
  46     return undefined
  47   }
  48
  49   const videoChannelAttributes = videoChannelActivityObjectToDBAttributes(videoChannelJSON, ownerAccount)
  50   const videoChannel = new VideoChannelModel(videoChannelAttributes)
  51   videoChannel.Account = ownerAccount
  52
  53   return videoChannel
  54 }
  55
  56 export {
  57   getOrCreateVideoChannel,
  58   fetchRemoteVideoChannel
  59 }