server/server -> server/core

server/core/helpers/custom-jsonld-signature.ts

@@ -0,0 +1,90 @@
+import AsyncLRU from 'async-lru'
+import jsonld from 'jsonld'
+import { logger } from './logger.js'
+
+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 as any).documentLoaders.node()
+
+const lru = new AsyncLRU({
+  max: 10,
+  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))
+  }
+});
+
+/* eslint-disable no-import-assign */
+(jsonld as any).documentLoader = (url) => {
+  return new Promise((res, rej) => {
+    lru.get(url, (err, value) => {
+      if (err) return rej(err)
+
+      return res(value)
+    })
+  })
+}
+
+export { jsonld }