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, signatureValidator } from '../../middlewares'
   7 import { activityPubValidator } from '../../middlewares/validators/activitypub/activity'
   8 import { ActorModel } from '../../models/activitypub/actor'
   9
  10 const inboxRouter = express.Router()
  11
  12 inboxRouter.post('/inbox',
  13   signatureValidator,
  14   asyncMiddleware(checkSignature),
  15   asyncMiddleware(activityPubValidator),
  16   asyncMiddleware(inboxController)
  17 )
  18
  19 inboxRouter.post('/accounts/:name/inbox',
  20   signatureValidator,
  21   asyncMiddleware(checkSignature),
  22   asyncMiddleware(localAccountValidator),
  23   asyncMiddleware(activityPubValidator),
  24   asyncMiddleware(inboxController)
  25 )
  26
  27 // ---------------------------------------------------------------------------
  28
  29 export {
  30   inboxRouter
  31 }
  32
  33 // ---------------------------------------------------------------------------
  34
  35 async function inboxController (req: express.Request, res: express.Response, next: express.NextFunction) {
  36   const rootActivity: RootActivity = req.body
  37   let activities: Activity[] = []
  38
  39   console.log(rootActivity)
  40
  41   if ([ 'Collection', 'CollectionPage' ].indexOf(rootActivity.type) !== -1) {
  42     activities = (rootActivity as ActivityPubCollection).items
  43   } else if ([ 'OrderedCollection', 'OrderedCollectionPage' ].indexOf(rootActivity.type) !== -1) {
  44     activities = (rootActivity as ActivityPubOrderedCollection<Activity>).orderedItems
  45   } else {
  46     activities = [ rootActivity as Activity ]
  47   }
  48
  49   // Only keep activities we are able to process
  50   logger.debug('Filtering %d activities...', activities.length)
  51   activities = activities.filter(a => isActivityValid(a))
  52   logger.debug('We keep %d activities.', activities.length, { activities })
  53
  54   let specificActor: ActorModel = undefined
  55   if (res.locals.account) {
  56     specificActor = res.locals.account
  57   } else if (res.locals.videoChannel) {
  58     specificActor = res.locals.videoChannel
  59   }
  60
  61   logger.info('Receiving inbox requests for %d activities by %s.', activities.length, res.locals.signature.actor.url)
  62
  63   await processActivities(activities, res.locals.signature.actor, specificActor)
  64
  65   res.status(204).end()
  66 }