Reduce AP context size on specific activities

server/controllers/activitypub/client.ts

@@ -234,7 +234,7 @@ async function videoAnnounceController (req: express.Request, res: express.Respo
 
   const { activity } = await buildAnnounceWithVideoAudience(share.Actor, share, res.locals.videoAll, undefined)
 
-  return activityPubResponse(activityPubContextify(activity), res)
+  return activityPubResponse(activityPubContextify(activity, 'Announce'), res)
 }
 
 async function videoAnnouncesController (req: express.Request, res: express.Response) {

server/helpers/activitypub.ts

@@ -8,13 +8,15 @@ import { pageToStartAndCount } from './core-utils'
 import { URL } from 'url'
 import { MActor, MVideoAccountLight } from '../typings/models'
 
-function activityPubContextify <T> (data: T) {
+export type ContextType = 'All' | 'View' | 'Announce'
-  return Object.assign(data, {
+
-    '@context': [
+function activityPubContextify <T> (data: T, type: ContextType = 'All') {
-      'https://www.w3.org/ns/activitystreams',
+  const base = {
-      'https://w3id.org/security/v1',
+    RsaSignature2017: 'https://w3id.org/security#RsaSignature2017'
-      {
+  }
-        RsaSignature2017: 'https://w3id.org/security#RsaSignature2017',
+
+  if (type === 'All') {
+    Object.assign(base, {
       pt: 'https://joinpeertube.org/ns#',
       sc: 'http://schema.org#',
       Hashtag: 'as:Hashtag',
@@ -71,9 +73,7 @@ function activityPubContextify <T> (data: T) {
       support: {
         '@type': 'sc:Text',
         '@id': 'pt:support'
-        }
       },
-      {
       likes: {
         '@id': 'as:likes',
         '@type': '@id'
@@ -94,7 +94,14 @@ function activityPubContextify <T> (data: T) {
         '@id': 'as:comments',
         '@type': '@id'
       }
+    })
   }
+
+  return Object.assign({}, data, {
+    '@context': [
+      'https://www.w3.org/ns/activitystreams',
+      'https://w3id.org/security/v1',
+      base
     ]
   })
 }
@@ -148,8 +155,8 @@ async function activityPubCollectionPagination (
 
 }
 
-function buildSignedActivity (byActor: MActor, data: Object) {
+function buildSignedActivity (byActor: MActor, data: Object, contextType?: ContextType) {
-  const activity = activityPubContextify(data)
+  const activity = activityPubContextify(data, contextType)
 
   return signJsonLDObject(byActor, activity) as Promise<Activity>
 }

server/lib/activitypub/send/send-announce.ts

@@ -28,7 +28,7 @@ async function sendVideoAnnounce (byActor: MActorLight, videoShare: MVideoShare,
   logger.info('Creating job to send announce %s.', videoShare.url)
 
   const followersException = [ byActor ]
-  return broadcastToFollowers(activity, byActor, actorsInvolvedInVideo, t, followersException)
+  return broadcastToFollowers(activity, byActor, actorsInvolvedInVideo, t, followersException, 'Announce')
 }
 
 function buildAnnounceActivity (url: string, byActor: MActorLight, object: string, audience?: ActivityAudience): ActivityAnnounce {

server/lib/activitypub/send/send-view.ts

@@ -16,7 +16,7 @@ async function sendView (byActor: ActorModel, video: MVideoAccountLight, t: Tran
     return buildViewActivity(url, byActor, video, audience)
   }
 
-  return sendVideoRelatedActivity(activityBuilder, { byActor, video, transaction: t })
+  return sendVideoRelatedActivity(activityBuilder, { byActor, video, transaction: t, contextType: 'View' })
 }
 
 function buildViewActivity (url: string, byActor: MActorAudience, video: MVideoUrl, audience?: ActivityAudience): ActivityView {

server/lib/activitypub/send/utils.ts

@@ -8,13 +8,15 @@ import { getActorsInvolvedInVideo, getAudienceFromFollowersOf, getRemoteVideoAud
 import { getServerActor } from '../../../helpers/utils'
 import { afterCommitIfTransaction } from '../../../helpers/database-utils'
 import { MActorWithInboxes, MActor, MActorId, MActorLight, MVideo, MVideoAccountLight } from '../../../typings/models'
+import { ContextType } from '@server/helpers/activitypub'
 
 async function sendVideoRelatedActivity (activityBuilder: (audience: ActivityAudience) => Activity, options: {
   byActor: MActorLight
   video: MVideoAccountLight
-  transaction?: Transaction
+  transaction?: Transaction,
+  contextType?: ContextType
 }) {
-  const { byActor, video, transaction } = options
+  const { byActor, video, transaction, contextType } = options
 
   const actorsInvolvedInVideo = await getActorsInvolvedInVideo(video, transaction)
 
@@ -24,7 +26,7 @@ async function sendVideoRelatedActivity (activityBuilder: (audience: ActivityAud
     const activity = activityBuilder(audience)
 
     return afterCommitIfTransaction(transaction, () => {
-      return unicastTo(activity, byActor, video.VideoChannel.Account.Actor.getSharedInbox())
+      return unicastTo(activity, byActor, video.VideoChannel.Account.Actor.getSharedInbox(), contextType)
     })
   }
 
@@ -34,7 +36,7 @@ async function sendVideoRelatedActivity (activityBuilder: (audience: ActivityAud
 
   const actorsException = [ byActor ]
 
-  return broadcastToFollowers(activity, byActor, actorsInvolvedInVideo, transaction, actorsException)
+  return broadcastToFollowers(activity, byActor, actorsInvolvedInVideo, transaction, actorsException, contextType)
 }
 
 async function forwardVideoRelatedActivity (
@@ -90,11 +92,12 @@ async function broadcastToFollowers (
   byActor: MActorId,
   toFollowersOf: MActorId[],
   t: Transaction,
-  actorsException: MActorWithInboxes[] = []
+  actorsException: MActorWithInboxes[] = [],
+  contextType?: ContextType
 ) {
   const uris = await computeFollowerUris(toFollowersOf, actorsException, t)
 
-  return afterCommitIfTransaction(t, () => broadcastTo(uris, data, byActor))
+  return afterCommitIfTransaction(t, () => broadcastTo(uris, data, byActor, contextType))
 }
 
 async function broadcastToActors (
@@ -102,13 +105,14 @@ async function broadcastToActors (
   byActor: MActorId,
   toActors: MActor[],
   t?: Transaction,
-  actorsException: MActorWithInboxes[] = []
+  actorsException: MActorWithInboxes[] = [],
+  contextType?: ContextType
 ) {
   const uris = await computeUris(toActors, actorsException)
-  return afterCommitIfTransaction(t, () => broadcastTo(uris, data, byActor))
+  return afterCommitIfTransaction(t, () => broadcastTo(uris, data, byActor, contextType))
 }
 
-function broadcastTo (uris: string[], data: any, byActor: MActorId) {
+function broadcastTo (uris: string[], data: any, byActor: MActorId, contextType?: ContextType) {
   if (uris.length === 0) return undefined
 
   logger.debug('Creating broadcast job.', { uris })
@@ -116,19 +120,21 @@ function broadcastTo (uris: string[], data: any, byActor: MActorId) {
   const payload = {
     uris,
     signatureActorId: byActor.id,
-    body: data
+    body: data,
+    contextType
   }
 
   return JobQueue.Instance.createJob({ type: 'activitypub-http-broadcast', payload })
 }
 
-function unicastTo (data: any, byActor: MActorId, toActorUrl: string) {
+function unicastTo (data: any, byActor: MActorId, toActorUrl: string, contextType?: ContextType) {
   logger.debug('Creating unicast job.', { uri: toActorUrl })
 
   const payload = {
     uri: toActorUrl,
     signatureActorId: byActor.id,
-    body: data
+    body: data,
+    contextType
   }
 
   JobQueue.Instance.createJob({ type: 'activitypub-http-unicast', payload })

server/lib/job-queue/handlers/activitypub-http-broadcast.ts

@@ -5,11 +5,13 @@ import { doRequest } from '../../../helpers/requests'
 import { buildGlobalHeaders, buildSignedRequestOptions, computeBody } from './utils/activitypub-http-utils'
 import { BROADCAST_CONCURRENCY, JOB_REQUEST_TIMEOUT } from '../../../initializers/constants'
 import { ActorFollowScoreCache } from '../../files-cache'
+import { ContextType } from '@server/helpers/activitypub'
 
 export type ActivitypubHttpBroadcastPayload = {
   uris: string[]
   signatureActorId?: number
   body: any
+  contextType?: ContextType
 }
 
 async function processActivityPubHttpBroadcast (job: Bull.Job) {

server/lib/job-queue/handlers/activitypub-http-unicast.ts

@@ -4,11 +4,13 @@ import { doRequest } from '../../../helpers/requests'
 import { buildGlobalHeaders, buildSignedRequestOptions, computeBody } from './utils/activitypub-http-utils'
 import { JOB_REQUEST_TIMEOUT } from '../../../initializers/constants'
 import { ActorFollowScoreCache } from '../../files-cache'
+import { ContextType } from '@server/helpers/activitypub'
 
 export type ActivitypubHttpUnicastPayload = {
   uri: string
   signatureActorId?: number
   body: any
+  contextType?: ContextType
 }
 
 async function processActivityPubHttpUnicast (job: Bull.Job) {

server/lib/job-queue/handlers/utils/activitypub-http-utils.ts

@@ -1,11 +1,11 @@
-import { buildSignedActivity } from '../../../../helpers/activitypub'
+import { buildSignedActivity, ContextType } from '../../../../helpers/activitypub'
 import { getServerActor } from '../../../../helpers/utils'
 import { ActorModel } from '../../../../models/activitypub/actor'
 import { sha256 } from '../../../../helpers/core-utils'
 import { HTTP_SIGNATURE } from '../../../../initializers/constants'
 import { MActor } from '../../../../typings/models'
 
-type Payload = { body: any, signatureActorId?: number }
+type Payload = { body: any, contextType?: ContextType, signatureActorId?: number }
 
 async function computeBody (payload: Payload) {
   let body = payload.body
@@ -13,7 +13,7 @@ async function computeBody (payload: Payload) {
   if (payload.signatureActorId) {
     const actorSignature = await ActorModel.load(payload.signatureActorId)
     if (!actorSignature) throw new Error('Unknown signature actor id.')
-    body = await buildSignedActivity(actorSignature, payload.body)
+    body = await buildSignedActivity(actorSignature, payload.body, payload.contextType)
   }
 
   return body