server/lib/activitypub/inbox-manager.ts

   1 import { queue, QueueObject } from 'async'
   2 import { logger } from '@server/helpers/logger'
   3 import { SCHEDULER_INTERVALS_MS } from '@server/initializers/constants'
   4 import { MActorDefault, MActorSignature } from '@server/types/models'
   5 import { Activity } from '@shared/models'
   6 import { StatsManager } from '../stat-manager'
   7 import { processActivities } from './process'
   8
   9 type QueueParam = {
  10   activities: Activity[]
  11   signatureActor?: MActorSignature
  12   inboxActor?: MActorDefault
  13 }
  14
  15 class InboxManager {
  16
  17   private static instance: InboxManager
  18
  19   private readonly inboxQueue: QueueObject<QueueParam>
  20
  21   private constructor () {
  22     this.inboxQueue = queue<QueueParam, Error>((task, cb) => {
  23       const options = { signatureActor: task.signatureActor, inboxActor: task.inboxActor }
  24
  25       processActivities(task.activities, options)
  26         .then(() => cb())
  27         .catch(err => {
  28           logger.error('Error in process activities.', { err })
  29           cb()
  30         })
  31     })
  32
  33     setInterval(() => {
  34       StatsManager.Instance.updateInboxWaiting(this.getActivityPubMessagesWaiting())
  35     }, SCHEDULER_INTERVALS_MS.UPDATE_INBOX_STATS)
  36   }
  37
  38   addInboxMessage (options: QueueParam) {
  39     this.inboxQueue.push(options)
  40       .catch(err => logger.error('Cannot add options in inbox queue.', { options, err }))
  41   }
  42
  43   getActivityPubMessagesWaiting () {
  44     return this.inboxQueue.length() + this.inboxQueue.running()
  45   }
  46
  47   static get Instance () {
  48     return this.instance || (this.instance = new this())
  49   }
  50 }
  51
  52 // ---------------------------------------------------------------------------
  53
  54 export {
  55   InboxManager
  56 }