import { Transaction } from 'sequelize' import { Activity, ActivityAudience } from '../../../../shared/models/activitypub' import { logger } from '../../../helpers/logger' import { ACTIVITY_PUB } from '../../../initializers' import { ActorModel } from '../../../models/activitypub/actor' import { ActorFollowModel } from '../../../models/activitypub/actor-follow' import { VideoModel } from '../../../models/video/video' import { VideoCommentModel } from '../../../models/video/video-comment' import { VideoShareModel } from '../../../models/video/video-share' import { JobQueue } from '../../job-queue' async function forwardActivity ( activity: Activity, t: Transaction, followersException: ActorModel[] = [], additionalFollowerUrls: string[] = [] ) { const to = activity.to || [] const cc = activity.cc || [] const followersUrls = additionalFollowerUrls for (const dest of to.concat(cc)) { if (dest.endsWith('/followers')) { followersUrls.push(dest) } } const toActorFollowers = await ActorModel.listByFollowersUrls(followersUrls, t) const uris = await computeFollowerUris(toActorFollowers, followersException, t) if (uris.length === 0) { logger.info('0 followers for %s, no forwarding.', toActorFollowers.map(a => a.id).join(', ')) return undefined } logger.debug('Creating forwarding job.', { uris }) const payload = { uris, body: activity } return JobQueue.Instance.createJob({ type: 'activitypub-http-broadcast', payload }) } async function broadcastToFollowers ( data: any, byActor: ActorModel, toActorFollowers: ActorModel[], t: Transaction, actorsException: ActorModel[] = [] ) { const uris = await computeFollowerUris(toActorFollowers, actorsException, t) return broadcastTo(uris, data, byActor) } async function broadcastToActors ( data: any, byActor: ActorModel, toActors: ActorModel[], actorsException: ActorModel[] = [] ) { const uris = await computeUris(toActors, actorsException) return broadcastTo(uris, data, byActor) } async function broadcastTo (uris: string[], data: any, byActor: ActorModel) { if (uris.length === 0) return undefined logger.debug('Creating broadcast job.', { uris }) const payload = { uris, signatureActorId: byActor.id, body: data } return JobQueue.Instance.createJob({ type: 'activitypub-http-broadcast', payload }) } async function unicastTo (data: any, byActor: ActorModel, toActorUrl: string) { logger.debug('Creating unicast job.', { uri: toActorUrl }) const payload = { uri: toActorUrl, signatureActorId: byActor.id, body: data } return JobQueue.Instance.createJob({ type: 'activitypub-http-unicast', payload }) } function getOriginVideoAudience (video: VideoModel, actorsInvolvedInVideo: ActorModel[]) { return { to: [ video.VideoChannel.Account.Actor.url ], cc: actorsInvolvedInVideo.map(a => a.followersUrl) } } function getVideoCommentAudience ( videoComment: VideoCommentModel, threadParentComments: VideoCommentModel[], actorsInvolvedInVideo: ActorModel[], isOrigin = false ) { const to = [ ACTIVITY_PUB.PUBLIC ] const cc = [ ] // Owner of the video we comment if (isOrigin === false) { cc.push(videoComment.Video.VideoChannel.Account.Actor.url) } // Followers of the poster cc.push(videoComment.Account.Actor.followersUrl) // Send to actors we reply to for (const parentComment of threadParentComments) { cc.push(parentComment.Account.Actor.url) } return { to, cc: cc.concat(actorsInvolvedInVideo.map(a => a.followersUrl)) } } function getObjectFollowersAudience (actorsInvolvedInObject: ActorModel[]) { return { to: [ ACTIVITY_PUB.PUBLIC ].concat(actorsInvolvedInObject.map(a => a.followersUrl)), cc: [] } } async function getActorsInvolvedInVideo (video: VideoModel, t: Transaction) { const actors = await VideoShareModel.loadActorsByShare(video.id, t) actors.push(video.VideoChannel.Account.Actor) return actors } async function getAudience (actorSender: ActorModel, t: Transaction, isPublic = true) { const followerInboxUrls = await actorSender.getFollowerSharedInboxUrls(t) return buildAudience(followerInboxUrls, isPublic) } function buildAudience (followerInboxUrls: string[], isPublic = true) { // Thanks Mastodon: https://github.com/tootsuite/mastodon/blob/master/app/lib/activitypub/tag_manager.rb#L47 let to = [] let cc = [] if (isPublic) { to = [ ACTIVITY_PUB.PUBLIC ] cc = followerInboxUrls } else { // Unlisted to = [ ] cc = [ ] } return { to, cc } } function audiencify (object: T, audience: ActivityAudience) { return Object.assign(object, audience) } async function computeFollowerUris (toActorFollower: ActorModel[], actorsException: ActorModel[], t: Transaction) { const toActorFollowerIds = toActorFollower.map(a => a.id) const result = await ActorFollowModel.listAcceptedFollowerSharedInboxUrls(toActorFollowerIds, t) const sharedInboxesException = actorsException.map(f => f.sharedInboxUrl || f.inboxUrl) return result.data.filter(sharedInbox => sharedInboxesException.indexOf(sharedInbox) === -1) } async function computeUris (toActors: ActorModel[], actorsException: ActorModel[] = []) { const toActorSharedInboxesSet = new Set(toActors.map(a => a.sharedInboxUrl || a.inboxUrl)) const sharedInboxesException = actorsException.map(f => f.sharedInboxUrl || f.inboxUrl) return Array.from(toActorSharedInboxesSet) .filter(sharedInbox => sharedInboxesException.indexOf(sharedInbox) === -1) } // --------------------------------------------------------------------------- export { broadcastToFollowers, unicastTo, buildAudience, getAudience, getOriginVideoAudience, getActorsInvolvedInVideo, getObjectFollowersAudience, forwardActivity, audiencify, getVideoCommentAudience, computeUris, broadcastToActors }