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 { queue } from 'async'
   9 import { ActorModel } from '../../models/activitypub/actor'
  10 import { MActorDefault, MActorSignature } from '../../typings/models'
  11
  12 const inboxRouter = express.Router()
  13
  14 inboxRouter.post('/inbox',
  15   signatureValidator,
  16   asyncMiddleware(checkSignature),
  17   asyncMiddleware(activityPubValidator),
  18   inboxController
  19 )
  20
  21 inboxRouter.post('/accounts/:name/inbox',
  22   signatureValidator,
  23   asyncMiddleware(checkSignature),
  24   asyncMiddleware(localAccountValidator),
  25   asyncMiddleware(activityPubValidator),
  26   inboxController
  27 )
  28 inboxRouter.post('/video-channels/:name/inbox',
  29   signatureValidator,
  30   asyncMiddleware(checkSignature),
  31   asyncMiddleware(localVideoChannelValidator),
  32   asyncMiddleware(activityPubValidator),
  33   inboxController
  34 )
  35
  36 // ---------------------------------------------------------------------------
  37
  38 export {
  39   inboxRouter
  40 }
  41
  42 // ---------------------------------------------------------------------------
  43
  44 type QueueParam = { activities: Activity[], signatureActor?: MActorSignature, inboxActor?: MActorDefault }
  45 const inboxQueue = queue<QueueParam, 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   const accountOrChannel = res.locals.account || res.locals.videoChannel
  70
  71   logger.info('Receiving inbox requests for %d activities by %s.', activities.length, res.locals.signature.actor.url)
  72
  73   inboxQueue.push({
  74     activities,
  75     signatureActor: res.locals.signature.actor,
  76     inboxActor: accountOrChannel ? accountOrChannel.Actor : undefined
  77   })
  78
  79   return res.status(204).end()
  80 }