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1 | import * as Bluebird from 'bluebird' | |
2 | import { join } from 'path' | |
3 | import { Transaction } from 'sequelize' | |
4 | import * as url from 'url' | |
5 | import * as uuidv4 from 'uuid/v4' | |
6 | import { ActivityPubActor, ActivityPubActorType } from '../../../shared/models/activitypub' | |
7 | import { ActivityPubAttributedTo } from '../../../shared/models/activitypub/objects' | |
8 | import { isRemoteActorValid } from '../../helpers/custom-validators/activitypub/actor' | |
9 | import { isActivityPubUrlValid } from '../../helpers/custom-validators/activitypub/misc' | |
10 | import { retryTransactionWrapper } from '../../helpers/database-utils' | |
11 | import { logger } from '../../helpers/logger' | |
12 | import { createPrivateAndPublicKeys } from '../../helpers/peertube-crypto' | |
13 | import { doRequest, doRequestAndSaveToFile } from '../../helpers/requests' | |
14 | import { CONFIG, sequelizeTypescript } from '../../initializers' | |
15 | import { AccountModel } from '../../models/account/account' | |
16 | import { ActorModel } from '../../models/activitypub/actor' | |
17 | import { AvatarModel } from '../../models/avatar/avatar' | |
18 | import { ServerModel } from '../../models/server/server' | |
19 | import { VideoChannelModel } from '../../models/video/video-channel' | |
20 | ||
21 | // Set account keys, this could be long so process after the account creation and do not block the client | |
22 | function setAsyncActorKeys (actor: ActorModel) { | |
23 | return createPrivateAndPublicKeys() | |
24 | .then(({ publicKey, privateKey }) => { | |
25 | actor.set('publicKey', publicKey) | |
26 | actor.set('privateKey', privateKey) | |
27 | return actor.save() | |
28 | }) | |
29 | .catch(err => { | |
30 | logger.error('Cannot set public/private keys of actor %d.', actor.uuid, err) | |
31 | return actor | |
32 | }) | |
33 | } | |
34 | ||
35 | async function getOrCreateActorAndServerAndModel (actorUrl: string, recurseIfNeeded = true) { | |
36 | let actor = await ActorModel.loadByUrl(actorUrl) | |
37 | ||
38 | // We don't have this actor in our database, fetch it on remote | |
39 | if (!actor) { | |
40 | const result = await fetchRemoteActor(actorUrl) | |
41 | if (result === undefined) throw new Error('Cannot fetch remote actor.') | |
42 | ||
43 | // Create the attributed to actor | |
44 | // In PeerTube a video channel is owned by an account | |
45 | let ownerActor: ActorModel = undefined | |
46 | if (recurseIfNeeded === true && result.actor.type === 'Group') { | |
47 | const accountAttributedTo = result.attributedTo.find(a => a.type === 'Person') | |
48 | if (!accountAttributedTo) throw new Error('Cannot find account attributed to video channel ' + actor.url) | |
49 | ||
50 | try { | |
51 | // Assert we don't recurse another time | |
52 | ownerActor = await getOrCreateActorAndServerAndModel(accountAttributedTo.id, false) | |
53 | } catch (err) { | |
54 | logger.error('Cannot get or create account attributed to video channel ' + actor.url) | |
55 | throw new Error(err) | |
56 | } | |
57 | } | |
58 | ||
59 | const options = { | |
60 | arguments: [ result, ownerActor ], | |
61 | errorMessage: 'Cannot save actor and server with many retries.' | |
62 | } | |
63 | actor = await retryTransactionWrapper(saveActorAndServerAndModelIfNotExist, options) | |
64 | } | |
65 | ||
66 | return actor | |
67 | } | |
68 | ||
69 | function buildActorInstance (type: ActivityPubActorType, url: string, preferredUsername: string, uuid?: string) { | |
70 | return new ActorModel({ | |
71 | type, | |
72 | url, | |
73 | preferredUsername, | |
74 | uuid, | |
75 | publicKey: null, | |
76 | privateKey: null, | |
77 | followersCount: 0, | |
78 | followingCount: 0, | |
79 | inboxUrl: url + '/inbox', | |
80 | outboxUrl: url + '/outbox', | |
81 | sharedInboxUrl: CONFIG.WEBSERVER.URL + '/inbox', | |
82 | followersUrl: url + '/followers', | |
83 | followingUrl: url + '/following' | |
84 | }) | |
85 | } | |
86 | ||
87 | export { | |
88 | getOrCreateActorAndServerAndModel, | |
89 | buildActorInstance, | |
90 | setAsyncActorKeys | |
91 | } | |
92 | ||
93 | // --------------------------------------------------------------------------- | |
94 | ||
95 | function saveActorAndServerAndModelIfNotExist ( | |
96 | result: FetchRemoteActorResult, | |
97 | ownerActor?: ActorModel, | |
98 | t?: Transaction | |
99 | ): Bluebird<ActorModel> | Promise<ActorModel> { | |
100 | let actor = result.actor | |
101 | ||
102 | if (t !== undefined) return save(t) | |
103 | ||
104 | return sequelizeTypescript.transaction(t => save(t)) | |
105 | ||
106 | async function save (t: Transaction) { | |
107 | const actorHost = url.parse(actor.url).host | |
108 | ||
109 | const serverOptions = { | |
110 | where: { | |
111 | host: actorHost | |
112 | }, | |
113 | defaults: { | |
114 | host: actorHost | |
115 | }, | |
116 | transaction: t | |
117 | } | |
118 | const [ server ] = await ServerModel.findOrCreate(serverOptions) | |
119 | ||
120 | // Save our new account in database | |
121 | actor.set('serverId', server.id) | |
122 | ||
123 | // Avatar? | |
124 | if (result.avatarName) { | |
125 | const avatar = await AvatarModel.create({ | |
126 | filename: result.avatarName | |
127 | }, { transaction: t }) | |
128 | actor.set('avatarId', avatar.id) | |
129 | } | |
130 | ||
131 | // Force the actor creation, sometimes Sequelize skips the save() when it thinks the instance already exists | |
132 | // (which could be false in a retried query) | |
133 | const actorCreated = await ActorModel.create(actor.toJSON(), { transaction: t }) | |
134 | ||
135 | if (actorCreated.type === 'Person' || actorCreated.type === 'Application') { | |
136 | const account = await saveAccount(actorCreated, result, t) | |
137 | actorCreated.Account = account | |
138 | actorCreated.Account.Actor = actorCreated | |
139 | } else if (actorCreated.type === 'Group') { // Video channel | |
140 | const videoChannel = await saveVideoChannel(actorCreated, result, ownerActor, t) | |
141 | actorCreated.VideoChannel = videoChannel | |
142 | actorCreated.VideoChannel.Actor = actorCreated | |
143 | } | |
144 | ||
145 | return actorCreated | |
146 | } | |
147 | } | |
148 | ||
149 | type FetchRemoteActorResult = { | |
150 | actor: ActorModel | |
151 | name: string | |
152 | summary: string | |
153 | avatarName?: string | |
154 | attributedTo: ActivityPubAttributedTo[] | |
155 | } | |
156 | async function fetchRemoteActor (actorUrl: string): Promise<FetchRemoteActorResult> { | |
157 | const options = { | |
158 | uri: actorUrl, | |
159 | method: 'GET', | |
160 | json: true, | |
161 | activityPub: true | |
162 | } | |
163 | ||
164 | logger.info('Fetching remote actor %s.', actorUrl) | |
165 | ||
166 | const requestResult = await doRequest(options) | |
167 | const actorJSON: ActivityPubActor = requestResult.body | |
168 | ||
169 | if (isRemoteActorValid(actorJSON) === false) { | |
170 | logger.debug('Remote actor JSON is not valid.', { actorJSON: actorJSON }) | |
171 | return undefined | |
172 | } | |
173 | ||
174 | const followersCount = await fetchActorTotalItems(actorJSON.followers) | |
175 | const followingCount = await fetchActorTotalItems(actorJSON.following) | |
176 | ||
177 | const actor = new ActorModel({ | |
178 | type: actorJSON.type, | |
179 | uuid: actorJSON.uuid, | |
180 | preferredUsername: actorJSON.preferredUsername, | |
181 | url: actorJSON.id, | |
182 | publicKey: actorJSON.publicKey.publicKeyPem, | |
183 | privateKey: null, | |
184 | followersCount: followersCount, | |
185 | followingCount: followingCount, | |
186 | inboxUrl: actorJSON.inbox, | |
187 | outboxUrl: actorJSON.outbox, | |
188 | sharedInboxUrl: actorJSON.endpoints.sharedInbox, | |
189 | followersUrl: actorJSON.followers, | |
190 | followingUrl: actorJSON.following | |
191 | }) | |
192 | ||
193 | // Fetch icon? | |
194 | let avatarName: string = undefined | |
195 | if ( | |
196 | actorJSON.icon && actorJSON.icon.type === 'Image' && actorJSON.icon.mediaType === 'image/png' && | |
197 | isActivityPubUrlValid(actorJSON.icon.url) | |
198 | ) { | |
199 | const extension = actorJSON.icon.mediaType === 'image/png' ? '.png' : '.jpg' | |
200 | ||
201 | avatarName = uuidv4() + extension | |
202 | const destPath = join(CONFIG.STORAGE.AVATARS_DIR, avatarName) | |
203 | ||
204 | await doRequestAndSaveToFile({ | |
205 | method: 'GET', | |
206 | uri: actorJSON.icon.url | |
207 | }, destPath) | |
208 | } | |
209 | ||
210 | const name = actorJSON.name || actorJSON.preferredUsername | |
211 | return { | |
212 | actor, | |
213 | name, | |
214 | avatarName, | |
215 | summary: actorJSON.summary, | |
216 | attributedTo: actorJSON.attributedTo | |
217 | } | |
218 | } | |
219 | ||
220 | async function fetchActorTotalItems (url: string) { | |
221 | const options = { | |
222 | uri: url, | |
223 | method: 'GET', | |
224 | json: true, | |
225 | activityPub: true | |
226 | } | |
227 | ||
228 | let requestResult | |
229 | try { | |
230 | requestResult = await doRequest(options) | |
231 | } catch (err) { | |
232 | logger.warn('Cannot fetch remote actor count %s.', url, err) | |
233 | return undefined | |
234 | } | |
235 | ||
236 | return requestResult.totalItems ? requestResult.totalItems : 0 | |
237 | } | |
238 | ||
239 | function saveAccount (actor: ActorModel, result: FetchRemoteActorResult, t: Transaction) { | |
240 | const account = new AccountModel({ | |
241 | name: result.name, | |
242 | actorId: actor.id | |
243 | }) | |
244 | ||
245 | return account.save({ transaction: t }) | |
246 | } | |
247 | ||
248 | async function saveVideoChannel (actor: ActorModel, result: FetchRemoteActorResult, ownerActor: ActorModel, t: Transaction) { | |
249 | const videoChannel = new VideoChannelModel({ | |
250 | name: result.name, | |
251 | description: result.summary, | |
252 | actorId: actor.id, | |
253 | accountId: ownerActor.Account.id | |
254 | }) | |
255 | ||
256 | return videoChannel.save({ transaction: t }) | |
257 | } |