eth-janus/build/services/hdwallet.js

Indirection service

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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};
var __generator = (this && this.__generator) || function (thisArg, body) {
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    }
};
Object.defineProperty(exports, "__esModule", { value: true });
var smart_contract_service_1 = require("../services/smart-contract-service");
var onetimekey_generator_service_1 = require("../services/onetimekey-generator-service");
var utils_1 = require("../services/utils");
var models_1 = require("../common/models");
var Tx = require('ethereumjs-tx');
var Web3 = require("web3");
var utils = new utils_1.Utils();
var Hdwallet = /** @class */ (function () {
    function Hdwallet(companyName, mnemonic, directoryProvider, messageProvider, storageProvider, signer, web3) {
        var _this = this;
        this.companyName = companyName;
        this.mnemonics = mnemonic;
        this.directoryProvider = directoryProvider;
        this.messageProvider = messageProvider;
        this.storageProvider = storageProvider;
        this.signer = signer;
        this.web3 = web3;
        if (!this.web3)
            throw "Web3 instance is null";
        this.smartContractService = new smart_contract_service_1.SmartContractService(this.web3);
        if (this.mnemonics)
            this.onetimeKeyGenerator = new onetimekey_generator_service_1.OnetimeKeyGeneratorService(this.mnemonics, this.storageProvider);
        this.messageProvider.watch(function (err, message) { return __awaiter(_this, void 0, void 0, function () { return __generator(this, function (_a) {
            switch (_a.label) {
                case 0: return [4 /*yield*/, this.onMessage(err, message)];
                case 1:
                    _a.sent();
                    return [2 /*return*/];
            }
        }); }); });
        console.log("HDWallet initialized");
    }
    Hdwallet.prototype.signTransaction = function (txnRef, networkId, txn) {
        return __awaiter(this, void 0, void 0, function () {
            var signedObj;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (!(this.onetimeKeyGenerator && txn)) return [3 /*break*/, 2];
                        return [4 /*yield*/, this.onetimeKeyGenerator.signTransaction(txnRef, networkId, txn, this.web3)];
                    case 1:
                        signedObj = _a.sent();
                        _a.label = 2;
                    case 2: return [2 /*return*/, signedObj];
                }
            });
        });
    };
    Hdwallet.prototype.signMessage = function (txnRef, networkId, message) {
        return __awaiter(this, void 0, void 0, function () {
            var signature;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (!this.onetimeKeyGenerator) return [3 /*break*/, 2];
                        return [4 /*yield*/, this.onetimeKeyGenerator.signMessage(txnRef, networkId, message)];
                    case 1:
                        signature = _a.sent();
                        _a.label = 2;
                    case 2: return [2 /*return*/, signature];
                }
            });
        });
    };
    Hdwallet.prototype.onMessage = function (err, message) {
        return __awaiter(this, void 0, void 0, function () {
            var msgType, payload, result;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        //console.log("In hdwallet onMessage:",message);
                        if (err || !message) {
                            console.log("Message:", message);
                            console.log("Error:", err);
                            return [2 /*return*/];
                        }
                        msgType = message["type"];
                        payload = message["payload"];
                        return [4 /*yield*/, utils.verifySignature(payload, message["signature"])];
                    case 1:
                        result = _a.sent();
                        if (!result.isValid) {
                            console.log("Invalid signature on message of type", msgType);
                            return [2 /*return*/];
                        }
                        if (!(msgType == models_1.MessageType.OnetimeKeyRequest)) return [3 /*break*/, 3];
                        return [4 /*yield*/, this.processOnetimeKeyRequest(payload, result.signerAddress)];
                    case 2:
                        _a.sent();
                        _a.label = 3;
                    case 3: return [2 /*return*/];
                }
            });
        });
    };
    Hdwallet.prototype.processOnetimeKeyRequest = function (payload, fromAddress) {
        return __awaiter(this, void 0, void 0, function () {
            var request, verifyResult, key, responseMsg, msgString, signature, message, fromPublicKey, toPublicKey;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (!this.onetimeKeyGenerator)
                            return [2 /*return*/];
                        request = new models_1.OnetimeKeyRequest(JSON.parse(payload));
                        return [4 /*yield*/, this.smartContractService.verifyAccount(fromAddress, request.sender)];
                    case 1:
                        verifyResult = _a.sent();
                        if (!verifyResult.status) //invalid request
                            return [2 /*return*/];
                        return [4 /*yield*/, this.onetimeKeyGenerator.getOnetimeKey(request.transactionId, request.networkId)];
                    case 2:
                        key = _a.sent();
                        responseMsg = new models_1.OnetimeKeyResponse({ transactionId: request.transactionId, networkId: request.networkId, sender: this.companyName, onetimeKey: key });
                        msgString = JSON.stringify(responseMsg);
                        return [4 /*yield*/, this.signer.sign(msgString)];
                    case 3:
                        signature = _a.sent();
                        message = new models_1.Message({ type: models_1.MessageType.OnetimeKeyResponse, payload: msgString, signature: signature });
                        return [4 /*yield*/, this.directoryProvider.getCompanyKey(this.companyName, "shhKey")];
                    case 4:
                        fromPublicKey = _a.sent();
                        return [4 /*yield*/, this.directoryProvider.getCompanyKey(request.sender, "shhKey")];
                    case 5:
                        toPublicKey = _a.sent();
                        //console.log("Sending response with key:", key);
                        //console.log("Sending response for txnRef:", request.transactionId);
                        return [4 /*yield*/, this.messageProvider.postMessage(fromPublicKey, toPublicKey, JSON.stringify(message))];
                    case 6:
                        //console.log("Sending response with key:", key);
                        //console.log("Sending response for txnRef:", request.transactionId);
                        _a.sent();
                        return [2 /*return*/];
                }
            });
        });
    };
    return Hdwallet;
}());
exports.Hdwallet = Hdwallet;
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