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Текущая директория: /opt/BitGoJS/node_modules/@celo/contractkit/lib/identity/claims

Просмотр файла: attestation-service-url.js

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.validateAttestationServiceUrl = exports.createAttestationServiceURLClaim = exports.AttestationServiceURLClaimType = void 0;
var address_1 = require("@celo/base/lib/address");
var io_1 = require("@celo/utils/lib/io");
var signatureUtils_1 = require("@celo/utils/lib/signatureUtils");
var cross_fetch_1 = __importDefault(require("cross-fetch"));
var crypto_1 = require("crypto");
var Either_1 = require("fp-ts/lib/Either");
var t = __importStar(require("io-ts"));
var types_1 = require("./types");
var SIGNATURE_PREFIX = 'attestation-service-status-signature:';
exports.AttestationServiceURLClaimType = t.type({
    type: t.literal(types_1.ClaimTypes.ATTESTATION_SERVICE_URL),
    timestamp: types_1.TimestampType,
    url: io_1.UrlType,
});
var createAttestationServiceURLClaim = function (url) { return ({
    url: url,
    timestamp: (0, types_1.now)(),
    type: types_1.ClaimTypes.ATTESTATION_SERVICE_URL,
}); };
exports.createAttestationServiceURLClaim = createAttestationServiceURLClaim;
function validateAttestationServiceUrl(kit, claim, address) {
    return __awaiter(this, void 0, void 0, function () {
        var randomMessage, url, resp, jsonResp, parsedResponse, claimedAccountAddress, accounts, attestationKeyAddress, error_1;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0:
                    _a.trys.push([0, 5, , 6]);
                    randomMessage = (0, address_1.ensureLeading0x)((0, crypto_1.randomBytes)(32).toString('hex'));
                    url = claim.url + '/status?messageToSign=' + randomMessage;
                    return [4 /*yield*/, (0, cross_fetch_1.default)(url)];
                case 1:
                    resp = _a.sent();
                    if (!resp.ok) {
                        return [2 /*return*/, "Could not request sucessfully from ".concat(url, "\", received status ").concat(resp.status)];
                    }
                    return [4 /*yield*/, resp.json()];
                case 2:
                    jsonResp = _a.sent();
                    parsedResponse = io_1.AttestationServiceStatusResponseType.decode(jsonResp);
                    if ((0, Either_1.isLeft)(parsedResponse)) {
                        return [2 /*return*/, "Response from ".concat(url, " could not be parsed successfully")];
                    }
                    claimedAccountAddress = parsedResponse.right.accountAddress;
                    if (!(0, address_1.eqAddress)(claimedAccountAddress, address)) {
                        return [2 /*return*/, "The service claims ".concat(claimedAccountAddress, ", but metadata claims ").concat(address)];
                    }
                    return [4 /*yield*/, kit.contracts.getAccounts()];
                case 3:
                    accounts = _a.sent();
                    return [4 /*yield*/, accounts.getAttestationSigner(address)];
                case 4:
                    attestationKeyAddress = _a.sent();
                    if (attestationKeyAddress === '0x0' || (0, address_1.eqAddress)(address, attestationKeyAddress)) {
                        return [2 /*return*/, "The account has not specified a separate attestation key"];
                    }
                    if (!parsedResponse.right.signature ||
                        !(0, signatureUtils_1.verifySignature)(SIGNATURE_PREFIX + randomMessage, parsedResponse.right.signature, attestationKeyAddress)) {
                        return [2 /*return*/, "The service's attestation key differs from the smart contract registered one"];
                    }
                    return [2 /*return*/];
                case 5:
                    error_1 = _a.sent();
                    return [2 /*return*/, "Could not validate attestation service claim: ".concat(error_1)];
                case 6: return [2 /*return*/];
            }
        });
    });
}
exports.validateAttestationServiceUrl = validateAttestationServiceUrl;
//# sourceMappingURL=attestation-service-url.js.map

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