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1 | import { Transaction } from 'sequelize' | |
2 | import { Activity, ActivityAudience } from '../../../../shared/models/activitypub' | |
3 | import { logger } from '../../../helpers/logger' | |
4 | import { ACTIVITY_PUB } from '../../../initializers' | |
5 | import { ActorModel } from '../../../models/activitypub/actor' | |
6 | import { ActorFollowModel } from '../../../models/activitypub/actor-follow' | |
7 | import { VideoModel } from '../../../models/video/video' | |
8 | import { VideoCommentModel } from '../../../models/video/video-comment' | |
9 | import { VideoShareModel } from '../../../models/video/video-share' | |
10 | import { JobQueue } from '../../job-queue' | |
11 | ||
12 | async function forwardActivity ( | |
13 | activity: Activity, | |
14 | t: Transaction, | |
15 | followersException: ActorModel[] = [], | |
16 | additionalFollowerUrls: string[] = [] | |
17 | ) { | |
18 | const to = activity.to || [] | |
19 | const cc = activity.cc || [] | |
20 | ||
21 | const followersUrls = additionalFollowerUrls | |
22 | for (const dest of to.concat(cc)) { | |
23 | if (dest.endsWith('/followers')) { | |
24 | followersUrls.push(dest) | |
25 | } | |
26 | } | |
27 | ||
28 | const toActorFollowers = await ActorModel.listByFollowersUrls(followersUrls, t) | |
29 | const uris = await computeFollowerUris(toActorFollowers, followersException, t) | |
30 | ||
31 | if (uris.length === 0) { | |
32 | logger.info('0 followers for %s, no forwarding.', toActorFollowers.map(a => a.id).join(', ')) | |
33 | return undefined | |
34 | } | |
35 | ||
36 | logger.debug('Creating forwarding job.', { uris }) | |
37 | ||
38 | const payload = { | |
39 | uris, | |
40 | body: activity | |
41 | } | |
42 | return JobQueue.Instance.createJob({ type: 'activitypub-http-broadcast', payload }) | |
43 | } | |
44 | ||
45 | async function broadcastToFollowers ( | |
46 | data: any, | |
47 | byActor: ActorModel, | |
48 | toActorFollowers: ActorModel[], | |
49 | t: Transaction, | |
50 | actorsException: ActorModel[] = [] | |
51 | ) { | |
52 | const uris = await computeFollowerUris(toActorFollowers, actorsException, t) | |
53 | return broadcastTo(uris, data, byActor) | |
54 | } | |
55 | ||
56 | async function broadcastToActors ( | |
57 | data: any, | |
58 | byActor: ActorModel, | |
59 | toActors: ActorModel[], | |
60 | actorsException: ActorModel[] = [] | |
61 | ) { | |
62 | const uris = await computeUris(toActors, actorsException) | |
63 | return broadcastTo(uris, data, byActor) | |
64 | } | |
65 | ||
66 | async function broadcastTo (uris: string[], data: any, byActor: ActorModel) { | |
67 | if (uris.length === 0) return undefined | |
68 | ||
69 | logger.debug('Creating broadcast job.', { uris }) | |
70 | ||
71 | const payload = { | |
72 | uris, | |
73 | signatureActorId: byActor.id, | |
74 | body: data | |
75 | } | |
76 | ||
77 | return JobQueue.Instance.createJob({ type: 'activitypub-http-broadcast', payload }) | |
78 | } | |
79 | ||
80 | async function unicastTo (data: any, byActor: ActorModel, toActorUrl: string) { | |
81 | logger.debug('Creating unicast job.', { uri: toActorUrl }) | |
82 | ||
83 | const payload = { | |
84 | uri: toActorUrl, | |
85 | signatureActorId: byActor.id, | |
86 | body: data | |
87 | } | |
88 | ||
89 | return JobQueue.Instance.createJob({ type: 'activitypub-http-unicast', payload }) | |
90 | } | |
91 | ||
92 | function getOriginVideoAudience (video: VideoModel, actorsInvolvedInVideo: ActorModel[]) { | |
93 | return { | |
94 | to: [ video.VideoChannel.Account.Actor.url ], | |
95 | cc: actorsInvolvedInVideo.map(a => a.followersUrl) | |
96 | } | |
97 | } | |
98 | ||
99 | function getVideoCommentAudience ( | |
100 | videoComment: VideoCommentModel, | |
101 | threadParentComments: VideoCommentModel[], | |
102 | actorsInvolvedInVideo: ActorModel[], | |
103 | isOrigin = false | |
104 | ) { | |
105 | const to = [ ACTIVITY_PUB.PUBLIC ] | |
106 | const cc = [ ] | |
107 | ||
108 | // Owner of the video we comment | |
109 | if (isOrigin === false) { | |
110 | cc.push(videoComment.Video.VideoChannel.Account.Actor.url) | |
111 | } | |
112 | ||
113 | // Followers of the poster | |
114 | cc.push(videoComment.Account.Actor.followersUrl) | |
115 | ||
116 | // Send to actors we reply to | |
117 | for (const parentComment of threadParentComments) { | |
118 | cc.push(parentComment.Account.Actor.url) | |
119 | } | |
120 | ||
121 | return { | |
122 | to, | |
123 | cc: cc.concat(actorsInvolvedInVideo.map(a => a.followersUrl)) | |
124 | } | |
125 | } | |
126 | ||
127 | function getObjectFollowersAudience (actorsInvolvedInObject: ActorModel[]) { | |
128 | return { | |
129 | to: [ ACTIVITY_PUB.PUBLIC ].concat(actorsInvolvedInObject.map(a => a.followersUrl)), | |
130 | cc: [] | |
131 | } | |
132 | } | |
133 | ||
134 | async function getActorsInvolvedInVideo (video: VideoModel, t: Transaction) { | |
135 | const actors = await VideoShareModel.loadActorsByShare(video.id, t) | |
136 | actors.push(video.VideoChannel.Account.Actor) | |
137 | ||
138 | return actors | |
139 | } | |
140 | ||
141 | async function getAudience (actorSender: ActorModel, t: Transaction, isPublic = true) { | |
142 | return buildAudience([ actorSender.followersUrl ], isPublic) | |
143 | } | |
144 | ||
145 | function buildAudience (followerInboxUrls: string[], isPublic = true) { | |
146 | // Thanks Mastodon: https://github.com/tootsuite/mastodon/blob/master/app/lib/activitypub/tag_manager.rb#L47 | |
147 | let to = [] | |
148 | let cc = [] | |
149 | ||
150 | if (isPublic) { | |
151 | to = [ ACTIVITY_PUB.PUBLIC ] | |
152 | cc = followerInboxUrls | |
153 | } else { // Unlisted | |
154 | to = [ ] | |
155 | cc = [ ] | |
156 | } | |
157 | ||
158 | return { to, cc } | |
159 | } | |
160 | ||
161 | function audiencify <T> (object: T, audience: ActivityAudience) { | |
162 | return Object.assign(object, audience) | |
163 | } | |
164 | ||
165 | async function computeFollowerUris (toActorFollower: ActorModel[], actorsException: ActorModel[], t: Transaction) { | |
166 | const toActorFollowerIds = toActorFollower.map(a => a.id) | |
167 | ||
168 | const result = await ActorFollowModel.listAcceptedFollowerSharedInboxUrls(toActorFollowerIds, t) | |
169 | const sharedInboxesException = actorsException.map(f => f.sharedInboxUrl || f.inboxUrl) | |
170 | return result.data.filter(sharedInbox => sharedInboxesException.indexOf(sharedInbox) === -1) | |
171 | } | |
172 | ||
173 | async function computeUris (toActors: ActorModel[], actorsException: ActorModel[] = []) { | |
174 | const toActorSharedInboxesSet = new Set(toActors.map(a => a.sharedInboxUrl || a.inboxUrl)) | |
175 | ||
176 | const sharedInboxesException = actorsException.map(f => f.sharedInboxUrl || f.inboxUrl) | |
177 | return Array.from(toActorSharedInboxesSet) | |
178 | .filter(sharedInbox => sharedInboxesException.indexOf(sharedInbox) === -1) | |
179 | } | |
180 | ||
181 | // --------------------------------------------------------------------------- | |
182 | ||
183 | export { | |
184 | broadcastToFollowers, | |
185 | unicastTo, | |
186 | buildAudience, | |
187 | getAudience, | |
188 | getOriginVideoAudience, | |
189 | getActorsInvolvedInVideo, | |
190 | getObjectFollowersAudience, | |
191 | forwardActivity, | |
192 | audiencify, | |
193 | getVideoCommentAudience, | |
194 | computeUris, | |
195 | broadcastToActors | |
196 | } |