import * as AsyncLRU from 'async-lru'
import * as jsonld from 'jsonld'
-import * as jsig from 'jsonld-signatures'
+import { logger } from './logger'
+
+const CACHE = {
+ 'https://w3id.org/security/v1': {
+ '@context': {
+ id: '@id',
+ type: '@type',
+
+ dc: 'http://purl.org/dc/terms/',
+ sec: 'https://w3id.org/security#',
+ xsd: 'http://www.w3.org/2001/XMLSchema#',
+
+ EcdsaKoblitzSignature2016: 'sec:EcdsaKoblitzSignature2016',
+ Ed25519Signature2018: 'sec:Ed25519Signature2018',
+ EncryptedMessage: 'sec:EncryptedMessage',
+ GraphSignature2012: 'sec:GraphSignature2012',
+ LinkedDataSignature2015: 'sec:LinkedDataSignature2015',
+ LinkedDataSignature2016: 'sec:LinkedDataSignature2016',
+ CryptographicKey: 'sec:Key',
+
+ authenticationTag: 'sec:authenticationTag',
+ canonicalizationAlgorithm: 'sec:canonicalizationAlgorithm',
+ cipherAlgorithm: 'sec:cipherAlgorithm',
+ cipherData: 'sec:cipherData',
+ cipherKey: 'sec:cipherKey',
+ created: { '@id': 'dc:created', '@type': 'xsd:dateTime' },
+ creator: { '@id': 'dc:creator', '@type': '@id' },
+ digestAlgorithm: 'sec:digestAlgorithm',
+ digestValue: 'sec:digestValue',
+ domain: 'sec:domain',
+ encryptionKey: 'sec:encryptionKey',
+ expiration: { '@id': 'sec:expiration', '@type': 'xsd:dateTime' },
+ expires: { '@id': 'sec:expiration', '@type': 'xsd:dateTime' },
+ initializationVector: 'sec:initializationVector',
+ iterationCount: 'sec:iterationCount',
+ nonce: 'sec:nonce',
+ normalizationAlgorithm: 'sec:normalizationAlgorithm',
+ owner: { '@id': 'sec:owner', '@type': '@id' },
+ password: 'sec:password',
+ privateKey: { '@id': 'sec:privateKey', '@type': '@id' },
+ privateKeyPem: 'sec:privateKeyPem',
+ publicKey: { '@id': 'sec:publicKey', '@type': '@id' },
+ publicKeyBase58: 'sec:publicKeyBase58',
+ publicKeyPem: 'sec:publicKeyPem',
+ publicKeyWif: 'sec:publicKeyWif',
+ publicKeyService: { '@id': 'sec:publicKeyService', '@type': '@id' },
+ revoked: { '@id': 'sec:revoked', '@type': 'xsd:dateTime' },
+ salt: 'sec:salt',
+ signature: 'sec:signature',
+ signatureAlgorithm: 'sec:signingAlgorithm',
+ signatureValue: 'sec:signatureValue'
+ }
+ }
+}
const nodeDocumentLoader = jsonld.documentLoaders.node()
const lru = new AsyncLRU({
max: 10,
- load: (key, cb) => {
- nodeDocumentLoader(key, cb)
+ load: (url, cb) => {
+ if (CACHE[url] !== undefined) {
+ logger.debug('Using cache for JSON-LD %s.', url)
+
+ return cb(null, {
+ contextUrl: null,
+ document: CACHE[url],
+ documentUrl: url
+ })
+ }
+
+ nodeDocumentLoader(url)
+ .then(value => cb(null, value))
+ .catch(err => cb(err))
}
})
-jsonld.documentLoader = (url, cb) => {
- lru.get(url, cb)
-}
+jsonld.documentLoader = (url) => {
+ return new Promise((res, rej) => {
+ lru.get(url, (err, value) => {
+ if (err) return rej(err)
-jsig.use('jsonld', jsonld)
+ return res(value)
+ })
+ })
+}
-export { jsig, jsonld }
+export { jsonld }