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41fb13c3 | 1 | import AsyncLRU from 'async-lru' |
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2 | import { logger } from './logger' |
3 | ||
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4 | import jsonld = require('jsonld') |
5 | ||
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6 | const CACHE = { |
7 | 'https://w3id.org/security/v1': { | |
8 | '@context': { | |
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9 | id: '@id', |
10 | type: '@type', | |
1eddc9a7 | 11 | |
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12 | dc: 'http://purl.org/dc/terms/', |
13 | sec: 'https://w3id.org/security#', | |
14 | xsd: 'http://www.w3.org/2001/XMLSchema#', | |
1eddc9a7 | 15 | |
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16 | EcdsaKoblitzSignature2016: 'sec:EcdsaKoblitzSignature2016', |
17 | Ed25519Signature2018: 'sec:Ed25519Signature2018', | |
18 | EncryptedMessage: 'sec:EncryptedMessage', | |
19 | GraphSignature2012: 'sec:GraphSignature2012', | |
20 | LinkedDataSignature2015: 'sec:LinkedDataSignature2015', | |
21 | LinkedDataSignature2016: 'sec:LinkedDataSignature2016', | |
22 | CryptographicKey: 'sec:Key', | |
1eddc9a7 | 23 | |
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24 | authenticationTag: 'sec:authenticationTag', |
25 | canonicalizationAlgorithm: 'sec:canonicalizationAlgorithm', | |
26 | cipherAlgorithm: 'sec:cipherAlgorithm', | |
27 | cipherData: 'sec:cipherData', | |
28 | cipherKey: 'sec:cipherKey', | |
29 | created: { '@id': 'dc:created', '@type': 'xsd:dateTime' }, | |
30 | creator: { '@id': 'dc:creator', '@type': '@id' }, | |
31 | digestAlgorithm: 'sec:digestAlgorithm', | |
32 | digestValue: 'sec:digestValue', | |
33 | domain: 'sec:domain', | |
34 | encryptionKey: 'sec:encryptionKey', | |
35 | expiration: { '@id': 'sec:expiration', '@type': 'xsd:dateTime' }, | |
36 | expires: { '@id': 'sec:expiration', '@type': 'xsd:dateTime' }, | |
37 | initializationVector: 'sec:initializationVector', | |
38 | iterationCount: 'sec:iterationCount', | |
39 | nonce: 'sec:nonce', | |
40 | normalizationAlgorithm: 'sec:normalizationAlgorithm', | |
41 | owner: { '@id': 'sec:owner', '@type': '@id' }, | |
42 | password: 'sec:password', | |
43 | privateKey: { '@id': 'sec:privateKey', '@type': '@id' }, | |
44 | privateKeyPem: 'sec:privateKeyPem', | |
45 | publicKey: { '@id': 'sec:publicKey', '@type': '@id' }, | |
46 | publicKeyBase58: 'sec:publicKeyBase58', | |
47 | publicKeyPem: 'sec:publicKeyPem', | |
48 | publicKeyWif: 'sec:publicKeyWif', | |
49 | publicKeyService: { '@id': 'sec:publicKeyService', '@type': '@id' }, | |
50 | revoked: { '@id': 'sec:revoked', '@type': 'xsd:dateTime' }, | |
51 | salt: 'sec:salt', | |
52 | signature: 'sec:signature', | |
53 | signatureAlgorithm: 'sec:signingAlgorithm', | |
54 | signatureValue: 'sec:signatureValue' | |
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55 | } |
56 | } | |
57 | } | |
9a27cdc2 | 58 | |
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59 | const nodeDocumentLoader = jsonld.documentLoaders.node() |
60 | ||
61 | const lru = new AsyncLRU({ | |
62 | max: 10, | |
1eddc9a7 | 63 | load: (url, cb) => { |
a1587156 | 64 | if (CACHE[url] !== undefined) { |
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65 | logger.debug('Using cache for JSON-LD %s.', url) |
66 | ||
67 | return cb(null, { | |
68 | contextUrl: null, | |
a1587156 | 69 | document: CACHE[url], |
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70 | documentUrl: url |
71 | }) | |
72 | } | |
73 | ||
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74 | nodeDocumentLoader(url) |
75 | .then(value => cb(null, value)) | |
76 | .catch(err => cb(err)) | |
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77 | } |
78 | }) | |
79 | ||
ba5a8d89 | 80 | /* eslint-disable no-import-assign */ |
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81 | jsonld.documentLoader = (url) => { |
82 | return new Promise((res, rej) => { | |
83 | lru.get(url, (err, value) => { | |
84 | if (err) return rej(err) | |
85 | ||
86 | return res(value) | |
87 | }) | |
88 | }) | |
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89 | } |
90 | ||
ad513607 | 91 | export { jsonld } |