@fioprotocol/fiojs
Version:
FioJS is a Utility SDK for packing, signing and encryption functionality for the FIO blockchain. It is used by the FIO TypeScript SDK
130 lines • 6.52 kB
JavaScript
;
/**
* @module JS-Sig
*/
// copyright defined in fiojs/LICENSE.txt
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 __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.JsSignatureProvider = void 0;
var chain_numeric_1 = require("./chain-numeric");
var ecc = require("./ecc");
function hexToUint8Array(hex) {
if (typeof hex !== "string") {
throw new Error("Expected string containing hex digits");
}
if (hex.length % 2) {
throw new Error("Odd number of hex digits");
}
var l = hex.length / 2;
var result = new Uint8Array(l);
for (var i = 0; i < l; ++i) {
var x = parseInt(hex.substr(i * 2, 2), 16);
if (Number.isNaN(x)) {
throw new Error("Expected hex string");
}
result[i] = x;
}
return result;
}
/** Signs transactions using in-process private keys */
var JsSignatureProvider = /** @class */ (function () {
/** @param privateKeys private keys to sign with */
function JsSignatureProvider(privateKeys) {
var e_1, _a;
/** map public to private keys */
this.keys = new Map();
/** public keys */
this.availableKeys = [];
try {
for (var privateKeys_1 = __values(privateKeys), privateKeys_1_1 = privateKeys_1.next(); !privateKeys_1_1.done; privateKeys_1_1 = privateKeys_1.next()) {
var k = privateKeys_1_1.value;
var pub = (0, chain_numeric_1.convertLegacyPublicKey)(ecc.PrivateKey.fromString(k).toPublic().toString());
this.keys.set(pub, k);
this.availableKeys.push(pub);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (privateKeys_1_1 && !privateKeys_1_1.done && (_a = privateKeys_1.return)) _a.call(privateKeys_1);
}
finally { if (e_1) throw e_1.error; }
}
}
/** Public keys associated with the private keys that the `SignatureProvider` holds */
JsSignatureProvider.prototype.getAvailableKeys = function () {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
return [2 /*return*/, this.availableKeys];
});
});
};
/** Sign a transaction */
JsSignatureProvider.prototype.sign = function (_a) {
var chainId = _a.chainId, requiredKeys = _a.requiredKeys, serializedTransaction = _a.serializedTransaction, serializedContextFreeData = _a.serializedContextFreeData;
return __awaiter(this, void 0, void 0, function () {
var signBuf, signatures;
var _this = this;
return __generator(this, function (_b) {
signBuf = Buffer.concat([
new Buffer(chainId, "hex"),
new Buffer(serializedTransaction),
new Buffer(serializedContextFreeData ?
hexToUint8Array(ecc.sha256(serializedContextFreeData)) :
new Uint8Array(32)),
]);
signatures = requiredKeys.map(function (pub) { return ecc.Signature.sign(signBuf, _this.keys.get((0, chain_numeric_1.convertLegacyPublicKey)(pub))).toString(); });
return [2 /*return*/, { signatures: signatures, serializedTransaction: serializedTransaction, serializedContextFreeData: serializedContextFreeData }];
});
});
};
return JsSignatureProvider;
}());
exports.JsSignatureProvider = JsSignatureProvider;
//# sourceMappingURL=chain-jssig.js.map