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Commit | Line | Data |
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1 | import * as AsyncLRU from 'async-lru' | |
2 | import * as jsonld from 'jsonld' | |
3 | import { logger } from './logger' | |
4 | ||
5 | const CACHE = { | |
6 | 'https://w3id.org/security/v1': { | |
7 | '@context': { | |
8 | 'id': '@id', | |
9 | 'type': '@type', | |
10 | ||
11 | 'dc': 'http://purl.org/dc/terms/', | |
12 | 'sec': 'https://w3id.org/security#', | |
13 | 'xsd': 'http://www.w3.org/2001/XMLSchema#', | |
14 | ||
15 | 'EcdsaKoblitzSignature2016': 'sec:EcdsaKoblitzSignature2016', | |
16 | 'Ed25519Signature2018': 'sec:Ed25519Signature2018', | |
17 | 'EncryptedMessage': 'sec:EncryptedMessage', | |
18 | 'GraphSignature2012': 'sec:GraphSignature2012', | |
19 | 'LinkedDataSignature2015': 'sec:LinkedDataSignature2015', | |
20 | 'LinkedDataSignature2016': 'sec:LinkedDataSignature2016', | |
21 | 'CryptographicKey': 'sec:Key', | |
22 | ||
23 | 'authenticationTag': 'sec:authenticationTag', | |
24 | 'canonicalizationAlgorithm': 'sec:canonicalizationAlgorithm', | |
25 | 'cipherAlgorithm': 'sec:cipherAlgorithm', | |
26 | 'cipherData': 'sec:cipherData', | |
27 | 'cipherKey': 'sec:cipherKey', | |
28 | 'created': { '@id': 'dc:created', '@type': 'xsd:dateTime' }, | |
29 | 'creator': { '@id': 'dc:creator', '@type': '@id' }, | |
30 | 'digestAlgorithm': 'sec:digestAlgorithm', | |
31 | 'digestValue': 'sec:digestValue', | |
32 | 'domain': 'sec:domain', | |
33 | 'encryptionKey': 'sec:encryptionKey', | |
34 | 'expiration': { '@id': 'sec:expiration', '@type': 'xsd:dateTime' }, | |
35 | 'expires': { '@id': 'sec:expiration', '@type': 'xsd:dateTime' }, | |
36 | 'initializationVector': 'sec:initializationVector', | |
37 | 'iterationCount': 'sec:iterationCount', | |
38 | 'nonce': 'sec:nonce', | |
39 | 'normalizationAlgorithm': 'sec:normalizationAlgorithm', | |
40 | 'owner': { '@id': 'sec:owner', '@type': '@id' }, | |
41 | 'password': 'sec:password', | |
42 | 'privateKey': { '@id': 'sec:privateKey', '@type': '@id' }, | |
43 | 'privateKeyPem': 'sec:privateKeyPem', | |
44 | 'publicKey': { '@id': 'sec:publicKey', '@type': '@id' }, | |
45 | 'publicKeyBase58': 'sec:publicKeyBase58', | |
46 | 'publicKeyPem': 'sec:publicKeyPem', | |
47 | 'publicKeyWif': 'sec:publicKeyWif', | |
48 | 'publicKeyService': { '@id': 'sec:publicKeyService', '@type': '@id' }, | |
49 | 'revoked': { '@id': 'sec:revoked', '@type': 'xsd:dateTime' }, | |
50 | 'salt': 'sec:salt', | |
51 | 'signature': 'sec:signature', | |
52 | 'signatureAlgorithm': 'sec:signingAlgorithm', | |
53 | 'signatureValue': 'sec:signatureValue' | |
54 | } | |
55 | } | |
56 | } | |
57 | ||
58 | const nodeDocumentLoader = jsonld.documentLoaders.node() | |
59 | ||
60 | const lru = new AsyncLRU({ | |
61 | max: 10, | |
62 | load: (url, cb) => { | |
63 | if (CACHE[ url ] !== undefined) { | |
64 | logger.debug('Using cache for JSON-LD %s.', url) | |
65 | ||
66 | return cb(null, { | |
67 | contextUrl: null, | |
68 | document: CACHE[ url ], | |
69 | documentUrl: url | |
70 | }) | |
71 | } | |
72 | ||
73 | nodeDocumentLoader(url, cb) | |
74 | } | |
75 | }) | |
76 | ||
77 | jsonld.documentLoader = (url, cb) => { | |
78 | lru.get(url, cb) | |
79 | } | |
80 | ||
81 | export { jsonld } |