PeerTube/server/lib/activitypub/send/http.ts

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import { buildDigest, signJsonLDObject } from '@server/helpers/peertube-crypto'
import { ACTIVITY_PUB, HTTP_SIGNATURE } from '@server/initializers/constants'
import { ActorModel } from '@server/models/actor/actor'
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import { getServerActor } from '@server/models/application/application'
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import { MActor } from '@server/types/models'
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import { ContextType } from '@shared/models/activitypub/context'
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import { activityPubContextify } from '../context'
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type Payload <T> = { body: T, contextType: ContextType, signatureActorId?: number }
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async function computeBody <T> (
payload: Payload<T>
): Promise<T | T & { type: 'RsaSignature2017', creator: string, created: string }> {
let body = payload.body
if (payload.signatureActorId) {
const actorSignature = await ActorModel.load(payload.signatureActorId)
if (!actorSignature) throw new Error('Unknown signature actor id.')
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body = await signAndContextify(actorSignature, payload.body, payload.contextType)
}
return body
}
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async function buildSignedRequestOptions (payload: Payload<any>) {
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let actor: MActor | null
if (payload.signatureActorId) {
actor = await ActorModel.load(payload.signatureActorId)
if (!actor) throw new Error('Unknown signature actor id.')
} else {
// We need to sign the request, so use the server
actor = await getServerActor()
}
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const keyId = actor.url
return {
algorithm: HTTP_SIGNATURE.ALGORITHM,
authorizationHeaderName: HTTP_SIGNATURE.HEADER_NAME,
keyId,
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key: actor.privateKey,
headers: HTTP_SIGNATURE.HEADERS_TO_SIGN
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}
}
function buildGlobalHeaders (body: any) {
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return {
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'digest': buildDigest(body),
'content-type': 'application/activity+json',
'accept': ACTIVITY_PUB.ACCEPT_HEADER
}
}
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function signAndContextify <T> (byActor: MActor, data: T, contextType: ContextType | null) {
const activity = contextType
? activityPubContextify(data, contextType)
: data
return signJsonLDObject(byActor, activity)
}
export {
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buildGlobalHeaders,
computeBody,
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buildSignedRequestOptions,
signAndContextify
}