server/controllers/activitypub/inbox.ts

   1 import * as express from 'express'
   2 import { Activity, ActivityPubCollection, ActivityPubOrderedCollection, RootActivity } from '../../../shared'
   3 import { isActivityValid } from '../../helpers/custom-validators/activitypub/activity'
   4 import { logger } from '../../helpers/logger'
   5 import { processActivities } from '../../lib/activitypub/process/process'
   6 import { asyncMiddleware, checkSignature, localAccountValidator, localVideoChannelValidator, signatureValidator } from '../../middlewares'
   7 import { activityPubValidator } from '../../middlewares/validators/activitypub/activity'
   8 import { VideoChannelModel } from '../../models/video/video-channel'
   9 import { AccountModel } from '../../models/account/account'
  10 import { queue } from 'async'
  11 import { ActorModel } from '../../models/activitypub/actor'
  12
  13 const inboxRouter = express.Router()
  14
  15 inboxRouter.post('/inbox',
  16   signatureValidator,
  17   asyncMiddleware(checkSignature),
  18   asyncMiddleware(activityPubValidator),
  19   inboxController
  20 )
  21
  22 inboxRouter.post('/accounts/:name/inbox',
  23   signatureValidator,
  24   asyncMiddleware(checkSignature),
  25   asyncMiddleware(localAccountValidator),
  26   asyncMiddleware(activityPubValidator),
  27   inboxController
  28 )
  29 inboxRouter.post('/video-channels/:name/inbox',
  30   signatureValidator,
  31   asyncMiddleware(checkSignature),
  32   asyncMiddleware(localVideoChannelValidator),
  33   asyncMiddleware(activityPubValidator),
  34   inboxController
  35 )
  36
  37 // ---------------------------------------------------------------------------
  38
  39 export {
  40   inboxRouter
  41 }
  42
  43 // ---------------------------------------------------------------------------
  44
  45 const inboxQueue = queue<{ activities: Activity[], signatureActor?: ActorModel, inboxActor?: ActorModel }, Error>((task, cb) => {
  46   const options = { signatureActor: task.signatureActor, inboxActor: task.inboxActor }
  47
  48   processActivities(task.activities, options)
  49     .then(() => cb())
  50 })
  51
  52 function inboxController (req: express.Request, res: express.Response) {
  53   const rootActivity: RootActivity = req.body
  54   let activities: Activity[] = []
  55
  56   if ([ 'Collection', 'CollectionPage' ].indexOf(rootActivity.type) !== -1) {
  57     activities = (rootActivity as ActivityPubCollection).items
  58   } else if ([ 'OrderedCollection', 'OrderedCollectionPage' ].indexOf(rootActivity.type) !== -1) {
  59     activities = (rootActivity as ActivityPubOrderedCollection<Activity>).orderedItems
  60   } else {
  61     activities = [ rootActivity as Activity ]
  62   }
  63
  64   // Only keep activities we are able to process
  65   logger.debug('Filtering %d activities...', activities.length)
  66   activities = activities.filter(a => isActivityValid(a))
  67   logger.debug('We keep %d activities.', activities.length, { activities })
  68
  69   let accountOrChannel: VideoChannelModel | AccountModel
  70   if (res.locals.account) {
  71     accountOrChannel = res.locals.account
  72   } else if (res.locals.videoChannel) {
  73     accountOrChannel = res.locals.videoChannel
  74   }
  75
  76   logger.info('Receiving inbox requests for %d activities by %s.', activities.length, res.locals.signature.actor.url)
  77
  78   inboxQueue.push({
  79     activities,
  80     signatureActor: res.locals.signature.actor,
  81     inboxActor: accountOrChannel ? accountOrChannel.Actor : undefined
  82   })
  83
  84   return res.status(204).end()
  85 }