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generateInitialKey.js
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generateInitialKey.js
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var fs = require('fs');
var keythereum = require("keythereum");
var Web3 = require('web3');
var generatePassword = require('password-generator');
generateAddress(function(keyObject, password) {
var filename = "./initialKeysDemo/" + keyObject.address + ".json";
var content = JSON.stringify(keyObject);
fs.writeFile(filename, content, function (err) {
if (err) return console.log(err);
console.log('Initial key generated to ' + filename);
console.log('Password for initial key: ' + password);
addInitialKey("0x" + keyObject.address, function(web3) {
sendEtherToInitialKeyTX(web3, "0x" + keyObject.address, function(err, txHash) {
if (err) {
console.log("Something went wrong with sending Eth to initial key");
console.log(err.message);
return;
}
console.log("Wait tx to send Eth to initial key to be mined...");
getTxCallBack(web3, txHash, function() {
console.log("0.1 Eth sent to initial key");
});
});
});
});
});
function getTxCallBack(web3, txHash, cb) {
web3.eth.getTransaction(txHash, function(err, txDetails) {
if (err) {
console.log(err);
}
if (!txDetails.blockNumber) {
setTimeout(function() {
getTxCallBack(web3, txHash, cb);
}, 2000)
} else {
cb();
}
});
};
function generateAddress(cb) {
var params = { keyBytes: 32, ivBytes: 16 };
// synchronous
var dk = keythereum.create(params);
// dk:
/*{
privateKey: <Buffer ...>,
iv: <Buffer ...>,
salt: <Buffer ...>
}*/
// asynchronous
keythereum.create(params, function (dk) {
var options = {};
var password = generatePassword(20);
keythereum.dump(password, dk.privateKey, dk.salt, dk.iv, options, function (keyObject) {
//keythereum.exportToFile(keyObject);
cb(keyObject, password);
});
});
}
function addInitialKey(_addr, cb) {
console.log(_addr);
attachToContract(function(err, contract, web3) {
addInitialKeyTX(web3, contract, _addr, function(err, txHash) {
if (err) {
console.log("error: " + err);
return;
}
console.log("Wait tx to add initial key to be mined...");
getTxCallBack(web3, txHash, function() {
console.log("Initial key " + _addr + " added to contract");
cb(web3);
});
});
});
}
function getConfig() {
var config = JSON.parse(fs.readFileSync('./config.json', 'utf8'));
return config;
}
function configureWeb3(cb) {
var config = getConfig();
var web3;
if (typeof web3 !== 'undefined') {
web3 = new Web3(web3.currentProvider);
} else {
web3 = new Web3(new Web3.providers.HttpProvider(config.Ethereum[config.environment].rpc));
}
if(!web3.isConnected()) {
var err = '{code: 500, title: "Error", message: "check RPC"}';
cb(err, web3, config);
} else {
//console.log(web3.eth.accounts);
web3.eth.defaultAccount = config.Ethereum[config.environment].account;
var defaultAccount = web3.eth.defaultAccount;
cb(null, web3, config, defaultAccount);
}
}
function attachToContract(cb) {
var config = getConfig();
configureWeb3(function(err, web3, config, defaultAccount) {
if (err) {
console.log(err);
return;
}
var contractABI = config.Ethereum.contracts.Oracles.abi;
var contractAddress = config.Ethereum[config.environment].contractAddress;
if(!web3.isConnected()) {
if (cb) {
cb({code: 200, title: "Error", message: "check RPC"}, null);
}
} else {
var MyContract = web3.eth.contract(contractABI);
contract = MyContract.at(contractAddress);
if (cb) {
cb(null, contract, web3);
}
}
});
}
function toUnifiedLengthLeft(strIn) {//for numbers
var strOut = "";
for (var i = 0; i < 64 - strIn.length; i++) {
strOut += "0"
}
strOut += strIn;
return strOut;
}
String.prototype.hexEncode = function(){
var hex, i;
var result = "";
for (i=0; i<this.length; i++) {
hex = this.charCodeAt(i).toString(16);
result += hex.slice(-4);
}
return result
}
function SHA3Encrypt(web3, str, cb) {
var strEncode = web3.sha3(str);
cb(strEncode, null);
}
function addInitialKeyTX(web3, contract, _addr, cb) {
if(!web3.isConnected()) {
cb({code: 500, title: "Error", message: "check RPC"}, null);
} else {
var func = "addInitialKey(address)";
SHA3Encrypt(web3, func, function(funcEncode) {
var funcEncodePart = funcEncode.substring(0,10);
var data = funcEncodePart
+ toUnifiedLengthLeft(_addr.substr(2));
var gasWillUsed = web3.eth.estimateGas({from: web3.eth.defaultAccount, to: _addr, data: data});
gasWillUsed += 31000;
//console.log(gasWillUsed);
console.log("new initial key: " + _addr);
console.log("from: " + web3.eth.defaultAccount);
contract.addInitialKey.sendTransaction(_addr, {gas: gasWillUsed, from: web3.eth.defaultAccount}, function(err, result) {
cb(err, result);
});
});
}
}
function sendEtherToInitialKeyTX(web3, _addr, cb) {
if(!web3.isConnected()) {
cb({code: 500, title: "Error", message: "check RPC"}, null);
} else {
var ethToSend = 100000000000000000;
var gasWillUsed = web3.eth.estimateGas({from: web3.eth.defaultAccount, to: _addr, value: ethToSend});
web3.eth.sendTransaction({gas: gasWillUsed, from: web3.eth.defaultAccount, to: _addr, value: ethToSend}, function(err, result) {
cb(err, result);
});
}
}