-import * as crypto from 'crypto'
-import * as bcrypt from 'bcrypt'
-import * as fs from 'fs'
-import * as openssl from 'openssl-wrapper'
-import { join } from 'path'
-
-import {
- SIGNATURE_ALGORITHM,
- SIGNATURE_ENCODING,
- PRIVATE_CERT_NAME,
- CONFIG,
- BCRYPT_SALT_SIZE,
- PUBLIC_CERT_NAME
-} from '../initializers'
+import { Request } from 'express'
+import { BCRYPT_SALT_SIZE, HTTP_SIGNATURE, PRIVATE_RSA_KEY_SIZE } from '../initializers'
+import { ActorModel } from '../models/activitypub/actor'
+import { bcryptComparePromise, bcryptGenSaltPromise, bcryptHashPromise, createPrivateKey, getPublicKey, sha256 } from './core-utils'
+import { jsig, jsonld } from './custom-jsonld-signature'
import { logger } from './logger'
+import { cloneDeep } from 'lodash'
+import { createVerify } from 'crypto'
+import { buildDigest } from '../lib/job-queue/handlers/utils/activitypub-http-utils'
-function checkSignature (publicKey, data, hexSignature) {
- const verify = crypto.createVerify(SIGNATURE_ALGORITHM)
-
- let dataString
- if (typeof data === 'string') {
- dataString = data
- } else {
- try {
- dataString = JSON.stringify(data)
- } catch (err) {
- logger.error('Cannot check signature.', { error: err })
- return false
- }
- }
+const httpSignature = require('http-signature')
+
+async function createPrivateAndPublicKeys () {
+ logger.info('Generating a RSA key...')
- verify.update(dataString, 'utf8')
+ const { key } = await createPrivateKey(PRIVATE_RSA_KEY_SIZE)
+ const { publicKey } = await getPublicKey(key)
- const isValid = verify.verify(publicKey, hexSignature, SIGNATURE_ENCODING)
- return isValid
+ return { privateKey: key, publicKey }
}
-function sign (data) {
- const sign = crypto.createSign(SIGNATURE_ALGORITHM)
-
- let dataString
- if (typeof data === 'string') {
- dataString = data
- } else {
- try {
- dataString = JSON.stringify(data)
- } catch (err) {
- logger.error('Cannot sign data.', { error: err })
- return ''
- }
- }
+// User password checks
- sign.update(dataString, 'utf8')
+function comparePassword (plainPassword: string, hashPassword: string) {
+ return bcryptComparePromise(plainPassword, hashPassword)
+}
- // TODO: make async
- const certPath = join(CONFIG.STORAGE.CERT_DIR, PRIVATE_CERT_NAME)
- const myKey = fs.readFileSync(certPath)
- const signature = sign.sign(myKey.toString(), SIGNATURE_ENCODING)
+async function cryptPassword (password: string) {
+ const salt = await bcryptGenSaltPromise(BCRYPT_SALT_SIZE)
- return signature
+ return bcryptHashPromise(password, salt)
}
-function comparePassword (plainPassword, hashPassword, callback) {
- bcrypt.compare(plainPassword, hashPassword, function (err, isPasswordMatch) {
- if (err) return callback(err)
+// HTTP Signature
- return callback(null, isPasswordMatch)
- })
+function isHTTPSignatureDigestValid (rawBody: Buffer, req: Request): boolean {
+ if (req.headers[HTTP_SIGNATURE.HEADER_NAME] && req.headers['digest']) {
+ return buildDigest(rawBody.toString()) === req.headers['digest']
+ }
+
+ return true
+}
+
+function isHTTPSignatureVerified (httpSignatureParsed: any, actor: ActorModel): boolean {
+ return httpSignature.verifySignature(httpSignatureParsed, actor.publicKey) === true
}
-function createCertsIfNotExist (callback) {
- certsExist(function (err, exist) {
- if (err) return callback(err)
+function parseHTTPSignature (req: Request, clockSkew?: number) {
+ return httpSignature.parse(req, { authorizationHeaderName: HTTP_SIGNATURE.HEADER_NAME, clockSkew })
+}
- if (exist === true) {
- return callback(null)
- }
+// JSONLD
- createCerts(function (err) {
- return callback(err)
- })
- })
+async function isJsonLDSignatureVerified (fromActor: ActorModel, signedDocument: any): Promise<boolean> {
+ if (signedDocument.signature.type === 'RsaSignature2017') {
+ // Mastodon algorithm
+ const res = await isJsonLDRSA2017Verified(fromActor, signedDocument)
+ // Success? If no, try with our library
+ if (res === true) return true
+ }
+
+ const publicKeyObject = {
+ '@context': jsig.SECURITY_CONTEXT_URL,
+ id: fromActor.url,
+ type: 'CryptographicKey',
+ owner: fromActor.url,
+ publicKeyPem: fromActor.publicKey
+ }
+
+ const publicKeyOwnerObject = {
+ '@context': jsig.SECURITY_CONTEXT_URL,
+ id: fromActor.url,
+ publicKey: [ publicKeyObject ]
+ }
+
+ const options = {
+ publicKey: publicKeyObject,
+ publicKeyOwner: publicKeyOwnerObject
+ }
+
+ return jsig.promises
+ .verify(signedDocument, options)
+ .then((result: { verified: boolean }) => result.verified)
+ .catch(err => {
+ logger.error('Cannot check signature.', { err })
+ return false
+ })
}
-function cryptPassword (password, callback) {
- bcrypt.genSalt(BCRYPT_SALT_SIZE, function (err, salt) {
- if (err) return callback(err)
+// Backward compatibility with "other" implementations
+async function isJsonLDRSA2017Verified (fromActor: ActorModel, signedDocument: any) {
+ function hash (obj: any): Promise<any> {
+ return jsonld.promises
+ .normalize(obj, {
+ algorithm: 'URDNA2015',
+ format: 'application/n-quads'
+ })
+ .then(res => sha256(res))
+ }
- bcrypt.hash(password, salt, function (err, hash) {
- return callback(err, hash)
- })
+ const signatureCopy = cloneDeep(signedDocument.signature)
+ Object.assign(signatureCopy, {
+ '@context': [
+ 'https://w3id.org/security/v1',
+ { RsaSignature2017: 'https://w3id.org/security#RsaSignature2017' }
+ ]
})
-}
+ delete signatureCopy.type
+ delete signatureCopy.id
+ delete signatureCopy.signatureValue
+
+ const docWithoutSignature = cloneDeep(signedDocument)
+ delete docWithoutSignature.signature
+
+ const [ documentHash, optionsHash ] = await Promise.all([
+ hash(docWithoutSignature),
+ hash(signatureCopy)
+ ])
-function getMyPrivateCert (callback) {
- const certPath = join(CONFIG.STORAGE.CERT_DIR, PRIVATE_CERT_NAME)
- fs.readFile(certPath, 'utf8', callback)
+ const toVerify = optionsHash + documentHash
+
+ const verify = createVerify('RSA-SHA256')
+ verify.update(toVerify, 'utf8')
+
+ return verify.verify(fromActor.publicKey, signedDocument.signature.signatureValue, 'base64')
}
-function getMyPublicCert (callback) {
- const certPath = join(CONFIG.STORAGE.CERT_DIR, PUBLIC_CERT_NAME)
- fs.readFile(certPath, 'utf8', callback)
+function signJsonLDObject (byActor: ActorModel, data: any) {
+ const options = {
+ privateKeyPem: byActor.privateKey,
+ creator: byActor.url,
+ algorithm: 'RsaSignature2017'
+ }
+
+ return jsig.promises.sign(data, options)
}
// ---------------------------------------------------------------------------
export {
- checkSignature,
+ isHTTPSignatureDigestValid,
+ parseHTTPSignature,
+ isHTTPSignatureVerified,
+ isJsonLDSignatureVerified,
comparePassword,
- createCertsIfNotExist,
+ createPrivateAndPublicKeys,
cryptPassword,
- getMyPrivateCert,
- getMyPublicCert,
- sign
-}
-
-// ---------------------------------------------------------------------------
-
-function certsExist (callback) {
- const certPath = join(CONFIG.STORAGE.CERT_DIR, PRIVATE_CERT_NAME)
- fs.access(certPath, function (err) {
- // If there is an error the certificates do not exist
- const exists = !err
- return callback(null, exists)
- })
-}
-
-function createCerts (callback) {
- certsExist(function (err, exist) {
- if (err) return callback(err)
-
- if (exist === true) {
- const string = 'Certs already exist.'
- logger.warning(string)
- return callback(new Error(string))
- }
-
- logger.info('Generating a RSA key...')
-
- const privateCertPath = join(CONFIG.STORAGE.CERT_DIR, PRIVATE_CERT_NAME)
- const genRsaOptions = {
- 'out': privateCertPath,
- '2048': false
- }
- openssl.exec('genrsa', genRsaOptions, function (err) {
- if (err) {
- logger.error('Cannot create private key on this pod.')
- return callback(err)
- }
-
- logger.info('RSA key generated.')
- logger.info('Managing public key...')
-
- const publicCertPath = join(CONFIG.STORAGE.CERT_DIR, 'peertube.pub')
- const rsaOptions = {
- 'in': privateCertPath,
- 'pubout': true,
- 'out': publicCertPath
- }
- openssl.exec('rsa', rsaOptions, function (err) {
- if (err) {
- logger.error('Cannot create public key on this pod.')
- return callback(err)
- }
-
- logger.info('Public key managed.')
- return callback(null)
- })
- })
- })
+ signJsonLDObject
}
projects / github / Chocobozzz / PeerTube.git / blobdiff