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 { MActorDefault, MActorSignature } from '../../types/models'
  10 import { HttpStatusCode } from '../../../shared/core-utils/miscs/http-error-codes'
  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     .catch(err => {
  51       logger.error('Error in process activities.', { err })
  52       cb()
  53     })
  54 })
  55
  56 function inboxController (req: express.Request, res: express.Response) {
  57   const rootActivity: RootActivity = req.body
  58   let activities: Activity[]
  59
  60   if ([ 'Collection', 'CollectionPage' ].includes(rootActivity.type)) {
  61     activities = (rootActivity as ActivityPubCollection).items
  62   } else if ([ 'OrderedCollection', 'OrderedCollectionPage' ].includes(rootActivity.type)) {
  63     activities = (rootActivity as ActivityPubOrderedCollection<Activity>).orderedItems
  64   } else {
  65     activities = [ rootActivity as Activity ]
  66   }
  67
  68   // Only keep activities we are able to process
  69   logger.debug('Filtering %d activities...', activities.length)
  70   activities = activities.filter(a => isActivityValid(a))
  71   logger.debug('We keep %d activities.', activities.length, { activities })
  72
  73   const accountOrChannel = res.locals.account || res.locals.videoChannel
  74
  75   logger.info('Receiving inbox requests for %d activities by %s.', activities.length, res.locals.signature.actor.url)
  76
  77   inboxQueue.push({
  78     activities,
  79     signatureActor: res.locals.signature.actor,
  80     inboxActor: accountOrChannel ? accountOrChannel.Actor : undefined
  81   })
  82
  83   return res.status(HttpStatusCode.NO_CONTENT_204).end()
  84 }