server/controllers/activitypub/inbox.ts

   1 import express from 'express'
   2 import { InboxManager } from '@server/lib/activitypub/inbox-manager'
   3 import { Activity, ActivityPubCollection, ActivityPubOrderedCollection, RootActivity } from '../../../shared'
   4 import { HttpStatusCode } from '../../../shared/models/http/http-error-codes'
   5 import { isActivityValid } from '../../helpers/custom-validators/activitypub/activity'
   6 import { logger } from '../../helpers/logger'
   7 import { asyncMiddleware, checkSignature, localAccountValidator, localVideoChannelValidator, signatureValidator } from '../../middlewares'
   8 import { activityPubValidator } from '../../middlewares/validators/activitypub/activity'
   9
  10 const inboxRouter = express.Router()
  11
  12 inboxRouter.post('/inbox',
  13   signatureValidator,
  14   asyncMiddleware(checkSignature),
  15   asyncMiddleware(activityPubValidator),
  16   inboxController
  17 )
  18
  19 inboxRouter.post('/accounts/:name/inbox',
  20   signatureValidator,
  21   asyncMiddleware(checkSignature),
  22   asyncMiddleware(localAccountValidator),
  23   asyncMiddleware(activityPubValidator),
  24   inboxController
  25 )
  26 inboxRouter.post('/video-channels/:name/inbox',
  27   signatureValidator,
  28   asyncMiddleware(checkSignature),
  29   asyncMiddleware(localVideoChannelValidator),
  30   asyncMiddleware(activityPubValidator),
  31   inboxController
  32 )
  33
  34 // ---------------------------------------------------------------------------
  35
  36 export {
  37   inboxRouter
  38 }
  39
  40 // ---------------------------------------------------------------------------
  41
  42 function inboxController (req: express.Request, res: express.Response) {
  43   const rootActivity: RootActivity = req.body
  44   let activities: Activity[]
  45
  46   if ([ 'Collection', 'CollectionPage' ].includes(rootActivity.type)) {
  47     activities = (rootActivity as ActivityPubCollection).items
  48   } else if ([ 'OrderedCollection', 'OrderedCollectionPage' ].includes(rootActivity.type)) {
  49     activities = (rootActivity as ActivityPubOrderedCollection<Activity>).orderedItems
  50   } else {
  51     activities = [ rootActivity as Activity ]
  52   }
  53
  54   // Only keep activities we are able to process
  55   logger.debug('Filtering %d activities...', activities.length)
  56   activities = activities.filter(a => isActivityValid(a))
  57   logger.debug('We keep %d activities.', activities.length, { activities })
  58
  59   const accountOrChannel = res.locals.account || res.locals.videoChannel
  60
  61   logger.info('Receiving inbox requests for %d activities by %s.', activities.length, res.locals.signature.actor.url)
  62
  63   InboxManager.Instance.addInboxMessage({
  64     activities,
  65     signatureActor: res.locals.signature.actor,
  66     inboxActor: accountOrChannel
  67       ? accountOrChannel.Actor
  68       : undefined
  69   })
  70
  71   return res.status(HttpStatusCode.NO_CONTENT_204).end()
  72 }