server/helpers/custom-validators/activitypub/actor.ts

   1 import * as validator from 'validator'
   2 import { CONSTRAINTS_FIELDS } from '../../../initializers'
   3 import { isAccountNameValid } from '../accounts'
   4 import { exists, isUUIDValid } from '../misc'
   5 import { isActivityPubUrlValid, isBaseActivityValid } from './misc'
   6
   7 function isActorEndpointsObjectValid (endpointObject: any) {
   8   return isActivityPubUrlValid(endpointObject.sharedInbox)
   9 }
  10
  11 function isActorPublicKeyObjectValid (publicKeyObject: any) {
  12   return isActivityPubUrlValid(publicKeyObject.id) &&
  13     isActivityPubUrlValid(publicKeyObject.owner) &&
  14     isActorPublicKeyValid(publicKeyObject.publicKeyPem)
  15 }
  16
  17 function isActorTypeValid (type: string) {
  18   return type === 'Person' || type === 'Application' || type === 'Group'
  19 }
  20
  21 function isActorPublicKeyValid (publicKey: string) {
  22   return exists(publicKey) &&
  23     typeof publicKey === 'string' &&
  24     publicKey.startsWith('-----BEGIN PUBLIC KEY-----') &&
  25     publicKey.endsWith('-----END PUBLIC KEY-----') &&
  26     validator.isLength(publicKey, CONSTRAINTS_FIELDS.ACTOR.PUBLIC_KEY)
  27 }
  28
  29 function isActorPreferredUsernameValid (preferredUsername: string) {
  30   return isAccountNameValid(preferredUsername)
  31 }
  32
  33 function isActorPrivateKeyValid (privateKey: string) {
  34   return exists(privateKey) &&
  35     typeof privateKey === 'string' &&
  36     privateKey.startsWith('-----BEGIN RSA PRIVATE KEY-----') &&
  37     privateKey.endsWith('-----END RSA PRIVATE KEY-----') &&
  38     validator.isLength(privateKey, CONSTRAINTS_FIELDS.ACTOR.PRIVATE_KEY)
  39 }
  40
  41 function isRemoteActorValid (remoteActor: any) {
  42   return isActivityPubUrlValid(remoteActor.id) &&
  43     isUUIDValid(remoteActor.uuid) &&
  44     isActorTypeValid(remoteActor.type) &&
  45     isActivityPubUrlValid(remoteActor.following) &&
  46     isActivityPubUrlValid(remoteActor.followers) &&
  47     isActivityPubUrlValid(remoteActor.inbox) &&
  48     isActivityPubUrlValid(remoteActor.outbox) &&
  49     isActorPreferredUsernameValid(remoteActor.preferredUsername) &&
  50     isActivityPubUrlValid(remoteActor.url) &&
  51     isActorPublicKeyObjectValid(remoteActor.publicKey) &&
  52     isActorEndpointsObjectValid(remoteActor.endpoints)
  53 }
  54
  55 function isActorFollowingCountValid (value: string) {
  56   return exists(value) && validator.isInt('' + value, { min: 0 })
  57 }
  58
  59 function isActorFollowersCountValid (value: string) {
  60   return exists(value) && validator.isInt('' + value, { min: 0 })
  61 }
  62
  63 function isActorDeleteActivityValid (activity: any) {
  64   return isBaseActivityValid(activity, 'Delete')
  65 }
  66
  67 function isActorFollowActivityValid (activity: any) {
  68   return isBaseActivityValid(activity, 'Follow') &&
  69     isActivityPubUrlValid(activity.object)
  70 }
  71
  72 function isActorAcceptActivityValid (activity: any) {
  73   return isBaseActivityValid(activity, 'Accept')
  74 }
  75
  76 // ---------------------------------------------------------------------------
  77
  78 export {
  79   isActorEndpointsObjectValid,
  80   isActorPublicKeyObjectValid,
  81   isActorTypeValid,
  82   isActorPublicKeyValid,
  83   isActorPreferredUsernameValid,
  84   isActorPrivateKeyValid,
  85   isRemoteActorValid,
  86   isActorFollowingCountValid,
  87   isActorFollowersCountValid,
  88   isActorFollowActivityValid,
  89   isActorAcceptActivityValid,
  90   isActorDeleteActivityValid
  91 }