@sphereon/did-resolver-key
Version:
Sphereon did:key resolver with BBS+/BLS and EBSI support.
79 lines • 3.96 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getResolver = exports.DID_JSON = exports.DID_LD_JSON = void 0;
const varint_1 = __importDefault(require("varint"));
const base58_1 = require("multiformats/bases/base58");
const ed25519_1 = __importDefault(require("./drivers/ed25519"));
const bls12381g2_1 = __importDefault(require("./drivers/bls12381g2"));
const secp256k1_1 = __importDefault(require("./drivers/secp256k1"));
const secp256r1_1 = __importDefault(require("./drivers/secp256r1"));
const secp384r1_1 = __importDefault(require("./drivers/secp384r1"));
const secp521r1_1 = __importDefault(require("./drivers/secp521r1"));
const jwk_jcs_1 = __importDefault(require("./drivers/jwk.jcs")); // JWK with JCS (used by EBSI)
exports.DID_LD_JSON = 'application/did+ld+json';
exports.DID_JSON = 'application/did+json';
const prefixToDriverMap = {
0xe7: secp256k1_1.default,
0xed: ed25519_1.default,
0x1200: secp256r1_1.default,
0x1201: secp384r1_1.default,
0x1202: secp521r1_1.default,
0xeb: bls12381g2_1.default,
0xeb51: jwk_jcs_1.default,
};
const getResolver = () => {
return {
key: (did, parsed, r, options) => __awaiter(void 0, void 0, void 0, function* () {
const contentType = options.accept || exports.DID_JSON;
const response = {
didResolutionMetadata: { contentType },
didDocument: null,
didDocumentMetadata: {},
};
try {
const multicodecPubKey = base58_1.base58btc.decode(parsed.id);
const keyType = varint_1.default.decode(multicodecPubKey);
const pubKeyBytes = multicodecPubKey.slice(varint_1.default.decode.bytes);
const doc = yield prefixToDriverMap[keyType].keyToDidDoc(pubKeyBytes, parsed.id, contentType);
if (contentType === exports.DID_LD_JSON) {
if (!doc['@context']) {
doc['@context'] = 'https://w3id.org/did/v1';
}
else if (Array.isArray(doc['@context']) &&
!doc['@context'].includes('https://w3id.org/did/v1') &&
!doc['@context'].includes('https://www.w3.org/ns/did/v1')) {
doc['@context'].push('https://w3id.org/did/v1');
}
response.didDocument = doc;
}
else if (contentType === exports.DID_JSON) {
response.didDocument = doc;
}
else {
delete response.didResolutionMetadata.contentType;
response.didResolutionMetadata.error = 'representationNotSupported';
}
}
catch (e) {
response.didResolutionMetadata.error = 'invalidDid';
response.didResolutionMetadata.message = e.toString();
}
return response;
}),
};
};
exports.getResolver = getResolver;
exports.default = { getResolver: exports.getResolver };
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