icewallet
Version:
Cold storage enabled command line bitcoin wallet based on bitpay's bitcore
186 lines • 17.4 kB
JavaScript
;
var bitcore = require('bitcore-lib');
const async = require('async');
const InsightService_1 = require('../Services/InsightService');
const PublicWalletInfo_1 = require('../Models/PublicWalletInfo');
const WalletService_1 = require('./WalletService');
const cerialize_1 = require('cerialize');
class PublicWalletService extends WalletService_1.default {
constructor(info, password) {
super(info, password);
this.insightService = new InsightService_1.InsightService('https://insight.bitpay.com/api/');
this.changeAddresses = [];
this.externalAddresses = [];
}
static openWallet(password, encryptedInfo, callback) {
this.cryptoService.decrypt(password, encryptedInfo, (err, decrypted) => {
if (err) {
return callback(err, null, null);
}
else if (decrypted.startsWith('xpub')) {
let error = 'This version of Icewallet is not compatable with your wallet\n';
error += 'Please create a new wallet with your public key\n';
error += decrypted + '\n';
error += 'Then use the "Next Unused Address Indexes" option to update your private wallet';
return callback(error, null, null);
}
try {
var json = JSON.parse(decrypted);
var walletInfo = cerialize_1.Deserialize(json, PublicWalletInfo_1.PublicWalletInfo);
var wallet = new PublicWalletService(walletInfo, password);
}
catch (err) {
return callback('Could not create wallet, check your xpub or password', decrypted, null);
}
return callback(null, decrypted, wallet);
});
}
get balance() {
var changeBalance = 0;
var externalBalance = 0;
if (this.changeAddresses.length > 0) {
changeBalance = this.changeAddresses.map((addr) => addr.balanceSat).reduce((p, c) => c + p);
}
if (this.externalAddresses.length > 0) {
externalBalance = this.externalAddresses.map((addr) => addr.balanceSat).reduce((p, c) => c + p);
}
return changeBalance + externalBalance;
}
getAddressInfo(index, change, callback) {
var address = this.address(index, change);
this.insightService.getAddressInfo(address, (err, resp, body) => {
if (err) {
return callback(err, null);
}
return callback(null, JSON.parse(body));
});
}
switchAccount(accountName, callback) {
this.selectedAccount = this.walletInfo.accounts.find(account => account.name == accountName);
console.log('updating wallet account...');
return this.update(callback);
}
getTransactions(change, callback) {
var startingAddress = 0;
var addrs = this.addressRange(startingAddress, startingAddress + 19, change);
var transactions = [];
var self = this;
function combine(err, resp, body) {
if (err) {
return callback(err, null);
}
var transactionBatch = JSON.parse(body).items;
transactionBatch.forEach((utxo) => transactions.push(utxo));
if (transactionBatch.length > 0) {
startingAddress += 20;
addrs = self.addressRange(startingAddress, startingAddress + 19, change);
self.insightService.getTransactions(addrs, combine);
}
else {
return callback(err, transactions);
}
}
this.insightService.getTransactions(addrs, combine);
}
getAddresses(change, callback) {
var maxConcurrency = 3;
var maxUnusedAddresses = 5;
var index = 0;
var emptyAddressCount = 0;
var addresses = [];
var errors = [];
function taskCallback(error) {
if (error) {
return errors.push(error);
}
}
var q = async.queue((task, callback) => {
this.getAddressInfo(task.index, change, (err, address) => {
if (err) {
return callback(err);
}
if (address.txApperances == 0) {
emptyAddressCount++;
}
else {
addresses[task.index] = address;
}
if (emptyAddressCount < maxUnusedAddresses) {
q.push({ index: index }, taskCallback);
}
index++;
return callback();
});
}, maxConcurrency);
for (index = 0; index < maxConcurrency; index++) {
q.push({ index: index }, taskCallback);
}
q.drain = () => {
return callback(errors.length > 0 ? errors : null, addresses);
};
}
update(callback) {
async.series([
(cb) => this.getAddresses(false, cb),
(cb) => this.getAddresses(true, cb),
], (err, results) => {
if (err) {
return callback(err, null);
}
this.externalAddresses = results[0];
this.changeAddresses = results[1];
return callback(null, this);
});
}
createTransaction(to, amount, callback) {
var addrs = [];
var total = 0;
var standardFee = 15000;
var addrsWithBalance = this.externalAddresses.concat(this.changeAddresses)
.filter((addr) => addr.balanceSat > 0);
addrsWithBalance.forEach((addr) => {
if (total < amount + standardFee) {
addrs.push(addr.addrStr);
total += addr.balanceSat;
}
});
if (total < amount + standardFee) {
return callback('you dont have enough coins for this transaction plus a fee', null);
}
this.insightService.getUtxos(addrs, (err, utxos) => {
if (err) {
return callback(err, null);
}
var utxosForTransaction = utxos.map((utxo) => {
return {
address: utxo.address,
txId: utxo.txid,
outputIndex: utxo.vout,
script: utxo.scriptPubKey,
satoshis: utxo.satoshis
};
});
var transaction = new bitcore.Transaction()
.from(utxosForTransaction)
.to(to, amount);
return callback(null, JSON.stringify(transaction.toObject()));
});
}
broadcastTransaction(serializedTransaction, callback) {
var transaction = new bitcore.Transaction(JSON.parse(serializedTransaction));
this.insightService.broadcastTransaction(transaction.serialize(), callback);
}
exportInfo(callback) {
PublicWalletService.cryptoService.deriveKey(this.password, (err, key) => {
if (err) {
return callback(err, null);
}
var serialized = cerialize_1.Serialize(this.walletInfo);
var stringified = JSON.stringify(serialized);
let encrypted = PublicWalletService.cryptoService.encrypt(key, stringified);
return callback(null, encrypted);
});
}
}
exports.PublicWalletService = PublicWalletService;
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