92 lines
2.6 KiB
TypeScript
92 lines
2.6 KiB
TypeScript
import { Request } from 'express'
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import { BCRYPT_SALT_SIZE, HTTP_SIGNATURE, PRIVATE_RSA_KEY_SIZE } from '../initializers'
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import { ActorModel } from '../models/activitypub/actor'
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import { bcryptComparePromise, bcryptGenSaltPromise, bcryptHashPromise, createPrivateKey, getPublicKey } from './core-utils'
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import { jsig } from './custom-jsonld-signature'
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import { logger } from './logger'
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const httpSignature = require('http-signature')
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async function createPrivateAndPublicKeys () {
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logger.info('Generating a RSA key...')
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const { key } = await createPrivateKey(PRIVATE_RSA_KEY_SIZE)
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const { publicKey } = await getPublicKey(key)
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return { privateKey: key, publicKey }
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}
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// User password checks
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function comparePassword (plainPassword: string, hashPassword: string) {
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return bcryptComparePromise(plainPassword, hashPassword)
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}
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async function cryptPassword (password: string) {
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const salt = await bcryptGenSaltPromise(BCRYPT_SALT_SIZE)
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return bcryptHashPromise(password, salt)
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}
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// HTTP Signature
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function isHTTPSignatureVerified (httpSignatureParsed: any, actor: ActorModel) {
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return httpSignature.verifySignature(httpSignatureParsed, actor.publicKey) === true
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}
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function parseHTTPSignature (req: Request) {
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return httpSignature.parse(req, { authorizationHeaderName: HTTP_SIGNATURE.HEADER_NAME })
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}
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// JSONLD
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function isJsonLDSignatureVerified (fromActor: ActorModel, signedDocument: any) {
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const publicKeyObject = {
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'@context': jsig.SECURITY_CONTEXT_URL,
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id: fromActor.url,
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type: 'CryptographicKey',
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owner: fromActor.url,
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publicKeyPem: fromActor.publicKey
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}
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const publicKeyOwnerObject = {
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'@context': jsig.SECURITY_CONTEXT_URL,
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id: fromActor.url,
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publicKey: [ publicKeyObject ]
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}
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const options = {
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publicKey: publicKeyObject,
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publicKeyOwner: publicKeyOwnerObject
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}
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return jsig.promises
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.verify(signedDocument, options)
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.then((result: { verified: boolean }) => result.verified)
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.catch(err => {
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logger.error('Cannot check signature.', { err })
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return false
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})
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}
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function signJsonLDObject (byActor: ActorModel, data: any) {
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const options = {
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privateKeyPem: byActor.privateKey,
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creator: byActor.url,
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algorithm: 'RsaSignature2017'
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}
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return jsig.promises.sign(data, options)
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}
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// ---------------------------------------------------------------------------
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export {
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parseHTTPSignature,
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isHTTPSignatureVerified,
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isJsonLDSignatureVerified,
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comparePassword,
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createPrivateAndPublicKeys,
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cryptPassword,
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signJsonLDObject
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}
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