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/models'
   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 {
   8   asyncMiddleware,
   9   checkSignature,
  10   ensureIsLocalChannel,
  11   localAccountValidator,
  12   signatureValidator,
  13   videoChannelsNameWithHostValidator
  14 } from '../../middlewares'
  15 import { activityPubValidator } from '../../middlewares/validators/activitypub/activity'
  16
  17 const inboxRouter = express.Router()
  18
  19 inboxRouter.post('/inbox',
  20   signatureValidator,
  21   asyncMiddleware(checkSignature),
  22   asyncMiddleware(activityPubValidator),
  23   inboxController
  24 )
  25
  26 inboxRouter.post('/accounts/:name/inbox',
  27   signatureValidator,
  28   asyncMiddleware(checkSignature),
  29   asyncMiddleware(localAccountValidator),
  30   asyncMiddleware(activityPubValidator),
  31   inboxController
  32 )
  33 inboxRouter.post('/video-channels/:nameWithHost/inbox',
  34   signatureValidator,
  35   asyncMiddleware(checkSignature),
  36   asyncMiddleware(videoChannelsNameWithHostValidator),
  37   ensureIsLocalChannel,
  38   asyncMiddleware(activityPubValidator),
  39   inboxController
  40 )
  41
  42 // ---------------------------------------------------------------------------
  43
  44 export {
  45   inboxRouter
  46 }
  47
  48 // ---------------------------------------------------------------------------
  49
  50 function inboxController (req: express.Request, res: express.Response) {
  51   const rootActivity: RootActivity = req.body
  52   let activities: Activity[]
  53
  54   if ([ 'Collection', 'CollectionPage' ].includes(rootActivity.type)) {
  55     activities = (rootActivity as ActivityPubCollection).items
  56   } else if ([ 'OrderedCollection', 'OrderedCollectionPage' ].includes(rootActivity.type)) {
  57     activities = (rootActivity as ActivityPubOrderedCollection<Activity>).orderedItems
  58   } else {
  59     activities = [ rootActivity as Activity ]
  60   }
  61
  62   // Only keep activities we are able to process
  63   logger.debug('Filtering %d activities...', activities.length)
  64   activities = activities.filter(a => isActivityValid(a))
  65   logger.debug('We keep %d activities.', activities.length, { activities })
  66
  67   const accountOrChannel = res.locals.account || res.locals.videoChannel
  68
  69   logger.info('Receiving inbox requests for %d activities by %s.', activities.length, res.locals.signature.actor.url)
  70
  71   InboxManager.Instance.addInboxMessage({
  72     activities,
  73     signatureActor: res.locals.signature.actor,
  74     inboxActor: accountOrChannel
  75       ? accountOrChannel.Actor
  76       : undefined
  77   })
  78
  79   return res.status(HttpStatusCode.NO_CONTENT_204).end()
  80 }