eth-janus
Version:
Indirection service
311 lines • 16 kB
JavaScript
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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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) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
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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.");
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case 0: case 1: t = op; break;
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if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var smart_contract_service_1 = require("../services/smart-contract-service");
var utils_1 = require("../services/utils");
var hdwallet_1 = require("./hdwallet");
var models_1 = require("../common/models");
var Tx = require('ethereumjs-tx');
var Web3 = require("web3");
var utils = new utils_1.Utils();
var Janus = /** @class */ (function () {
function Janus(companyName, mnemonics, nodeUrl, directoryProvider, messageProvider, storageProvider, signer) {
var _this = this;
this.companyName = companyName;
this.mnemonics = mnemonics;
this.nodeUrl = nodeUrl;
this.directoryProvider = directoryProvider;
this.messageProvider = messageProvider;
this.storageProvider = storageProvider;
this.signer = signer;
//console.log(this.directoryProvider);
if (this.nodeUrl)
this.web3 = new Web3(new Web3.providers.HttpProvider(this.nodeUrl));
if (!this.web3)
throw "Web3 instance is null";
this.smartContractService = new smart_contract_service_1.SmartContractService(this.web3);
this.callbackMap = new Map();
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*/];
}
}); }); });
this.fundingAccount = this.web3.eth.accounts[0];
}
Janus.prototype.startHdwallet = function (messageProvider) {
if (!this.hdwallet)
this.hdwallet = new hdwallet_1.Hdwallet(this.companyName, this.mnemonics, this.directoryProvider, messageProvider, this.storageProvider, this.signer, this.web3);
};
Janus.prototype.requestOnetimeKeys = function (txnRef, networkId, parties, callback) {
return __awaiter(this, void 0, void 0, function () {
var partiesKeyMap, i, value, i, value, fromPublicKey, toPublicKey, requestMsg, msgString, signature, message;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
partiesKeyMap = new Array();
//parties.forEach(function (value, index, array) {
for (i = 0; i < parties.length; i++) {
value = parties[i];
if (value) {
partiesKeyMap.push({ partyName: value, onetimeKey: null });
}
//});
}
return [4 /*yield*/, this.storageProvider.storeOnetimeKeyMap(txnRef, networkId, partiesKeyMap)];
case 1:
_a.sent();
this.registerCallback(txnRef, callback);
i = 0;
_a.label = 2;
case 2:
if (!(i < parties.length)) return [3 /*break*/, 8];
value = parties[i];
if (!value) return [3 /*break*/, 7];
return [4 /*yield*/, this.directoryProvider.getCompanyKey(this.companyName, "shhKey")];
case 3:
fromPublicKey = _a.sent();
return [4 /*yield*/, this.directoryProvider.getCompanyKey(value, "shhKey")];
case 4:
toPublicKey = _a.sent();
if (!toPublicKey) return [3 /*break*/, 7];
requestMsg = new models_1.OnetimeKeyRequest({ transactionId: txnRef, networkId: networkId, sender: this.companyName, recepient: value });
msgString = JSON.stringify(requestMsg);
return [4 /*yield*/, this.signer.sign(msgString)];
case 5:
signature = _a.sent();
message = new models_1.Message({ type: models_1.MessageType.OnetimeKeyRequest, payload: msgString, signature: signature });
//console.log("sending message", message);
return [4 /*yield*/, this.messageProvider.postMessage(fromPublicKey, toPublicKey, JSON.stringify(message))];
case 6:
//console.log("sending message", message);
_a.sent();
_a.label = 7;
case 7:
i++;
return [3 /*break*/, 2];
case 8: return [2 /*return*/];
}
});
});
};
Janus.prototype.getOnetimeKeys = function (txnRef, networkId) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
//Reading from storage provider
console.log(this.storageProvider);
return [4 /*yield*/, this.storageProvider.readOnetimeKeyMap(txnRef, networkId)];
case 1: return [2 /*return*/, _a.sent()];
}
});
});
};
Janus.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.hdwallet && txn)) return [3 /*break*/, 2];
return [4 /*yield*/, this.hdwallet.signTransaction(txnRef, networkId, txn)];
case 1:
signedObj = _a.sent();
_a.label = 2;
case 2: return [2 /*return*/, signedObj];
}
});
});
};
Janus.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.hdwallet) return [3 /*break*/, 2];
return [4 /*yield*/, this.hdwallet.signMessage(txnRef, networkId, message)];
case 1:
signature = _a.sent();
_a.label = 2;
case 2: return [2 /*return*/, signature];
}
});
});
};
Janus.prototype.postTransaction = function (txnRef, networkId, txn) {
return __awaiter(this, void 0, void 0, function () {
var response, block, signedObj;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!this.hdwallet) return [3 /*break*/, 4];
if (!txn["gasPrice"])
txn["gasPrice"] = 0;
if (!txn["gas"] && !txn["gasLimit"]) {
block = this.web3.eth.getBlock("latest");
txn["gasLimit"] = block.gasLimit;
}
return [4 /*yield*/, this.hdwallet.signTransaction(txnRef, networkId, txn)];
case 1:
signedObj = _a.sent();
//console.log("SignedTx",signedObj.signedTx);
return [4 /*yield*/, this.fundAccountIfNeeded(signedObj.rawTx["from"])];
case 2:
//console.log("SignedTx",signedObj.signedTx);
_a.sent();
return [4 /*yield*/, this.web3.eth.sendRawTransaction(signedObj.signedTx)];
case 3:
response = _a.sent();
_a.label = 4;
case 4: return [2 /*return*/, response];
}
});
});
};
Janus.prototype.getTransactionReceipt = function (txnHash, interval) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.smartContractService.getTransactionReceipt(txnHash, interval)];
case 1: return [2 /*return*/, _a.sent()];
}
});
});
};
Janus.prototype.fundAccountIfNeeded = function (address) {
return __awaiter(this, void 0, void 0, function () {
var balance, amount, tx;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.web3.eth.getBalance(address)];
case 1:
balance = _a.sent();
if (!(!balance || balance.lt(this.web3.toWei(0.05, "ether")))) return [3 /*break*/, 3];
console.log("funding...");
amount = this.web3.toWei(0.1, "ether");
return [4 /*yield*/, this.web3.eth.sendTransaction({ from: this.fundingAccount, to: address, value: amount })];
case 2:
tx = _a.sent();
console.log("tx hash:", tx);
_a.label = 3;
case 3: return [2 /*return*/];
}
});
});
};
Janus.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:
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.OnetimeKeyResponse)) return [3 /*break*/, 3];
return [4 /*yield*/, this.processOnetimeKeyResponse(payload, result.signerAddress)];
case 2:
_a.sent();
_a.label = 3;
case 3: return [2 /*return*/];
}
});
});
};
Janus.prototype.processOnetimeKeyResponse = function (payload, fromAddress) {
return __awaiter(this, void 0, void 0, function () {
var response, result;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
response = new models_1.OnetimeKeyResponse(JSON.parse(payload));
//TODO: verify responder "fromAddress"
console.log("Onetime key response received for txnRef:", response.transactionId, " from", response.sender);
//console.log("Response received:", response);
return [4 /*yield*/, this.storageProvider.storeOnetimeKeyMap(response.transactionId, response.networkId, [{ partyName: response.sender, onetimeKey: response.onetimeKey }])];
case 1:
//console.log("Response received:", response);
_a.sent();
return [4 /*yield*/, this.storageProvider.readOnetimeKeyMap(response.transactionId, response.networkId)];
case 2:
result = _a.sent();
//console.log("Result:",result);
//console.log("Result:",JSON.stringify(result));
console.log(this.storageProvider);
if (utils.checkIfKeyMapHasAllKeys(result.partyKeyMap)) {
this.invokeCallback(response.transactionId, result);
this.unregisterCallback(response.transactionId);
}
return [2 /*return*/];
}
});
});
};
Janus.prototype.registerCallback = function (transactionId, callback) {
if (transactionId && callback)
this.callbackMap.set(transactionId, callback);
};
Janus.prototype.unregisterCallback = function (transactionId) {
if (transactionId)
this.callbackMap.delete(transactionId);
};
Janus.prototype.invokeCallback = function (transactionId, response) {
if (transactionId && this.callbackMap.has(transactionId)) {
var callback = this.callbackMap.get(transactionId);
if (callback)
callback(response);
}
};
return Janus;
}());
exports.Janus = Janus;
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