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1 | import { buildSignedActivity } from '../../../../helpers/activitypub' | |
2 | import { getServerActor } from '../../../../helpers/utils' | |
3 | import { ActorModel } from '../../../../models/activitypub/actor' | |
4 | import { sha256 } from '../../../../helpers/core-utils' | |
5 | import { HTTP_SIGNATURE } from '../../../../initializers/constants' | |
6 | import { MActor } from '../../../../typings/models' | |
7 | ||
8 | type Payload = { body: any, signatureActorId?: number } | |
9 | ||
10 | async function computeBody (payload: Payload) { | |
11 | let body = payload.body | |
12 | ||
13 | if (payload.signatureActorId) { | |
14 | const actorSignature = await ActorModel.load(payload.signatureActorId) | |
15 | if (!actorSignature) throw new Error('Unknown signature actor id.') | |
16 | body = await buildSignedActivity(actorSignature, payload.body) | |
17 | } | |
18 | ||
19 | return body | |
20 | } | |
21 | ||
22 | async function buildSignedRequestOptions (payload: Payload) { | |
23 | let actor: MActor | null | |
24 | ||
25 | if (payload.signatureActorId) { | |
26 | actor = await ActorModel.load(payload.signatureActorId) | |
27 | if (!actor) throw new Error('Unknown signature actor id.') | |
28 | } else { | |
29 | // We need to sign the request, so use the server | |
30 | actor = await getServerActor() | |
31 | } | |
32 | ||
33 | const keyId = actor.url | |
34 | return { | |
35 | algorithm: HTTP_SIGNATURE.ALGORITHM, | |
36 | authorizationHeaderName: HTTP_SIGNATURE.HEADER_NAME, | |
37 | keyId, | |
38 | key: actor.privateKey, | |
39 | headers: HTTP_SIGNATURE.HEADERS_TO_SIGN | |
40 | } | |
41 | } | |
42 | ||
43 | function buildGlobalHeaders (body: any) { | |
44 | return { | |
45 | 'Digest': buildDigest(body) | |
46 | } | |
47 | } | |
48 | ||
49 | function buildDigest (body: any) { | |
50 | const rawBody = typeof body === 'string' ? body : JSON.stringify(body) | |
51 | ||
52 | return 'SHA-256=' + sha256(rawBody, 'base64') | |
53 | } | |
54 | ||
55 | export { | |
56 | buildDigest, | |
57 | buildGlobalHeaders, | |
58 | computeBody, | |
59 | buildSignedRequestOptions | |
60 | } |