public Task <UTXOChanges> GetUTXOsAsync(DerivationStrategyBase extKey, Bookmark[] confirmedBookmarks, Bookmark[] unconfirmedBookmarks, bool longPolling = true, CancellationToken cancellation = default)
{
if (extKey == null)
{
throw new ArgumentNullException(nameof(extKey));
}
return(GetUTXOsAsync(TrackedSource.Create(extKey), confirmedBookmarks, unconfirmedBookmarks, longPolling, cancellation));
}
public BitcoinConnector(string oracleAddress, string endpoint, Channel <Deposit> depositStream, Channel <WithdrawInfo> withdrawStream)
{
this.depositStream = depositStream;
this.withdrawStream = withdrawStream;
this.oracleAddress = TrackedSource.Create(new BitcoinPubKeyAddress(oracleAddress));
client = new ExplorerClient(new NBXplorerNetworkProvider(NetworkType.Testnet).GetBTC(), new Uri(endpoint));
client.SetNoAuth();
}
public Task <UTXOChanges> GetUTXOsAsync(DerivationStrategyBase extKey, CancellationToken cancellation = default)
{
if (extKey == null)
{
throw new ArgumentNullException(nameof(extKey));
}
return(GetUTXOsAsync(TrackedSource.Create(extKey), cancellation));
}
private void UpdateTxConfirmations(WalletAddr addr)
{
var baddr = BitcoinAddress.Create(addr.Address, GetNetwork());
var trackedSource = TrackedSource.Create(baddr);
var txs = GetClient().GetTransactions(trackedSource);
UpdateTxConfirmations(txs);
}
public async Task TrackClaim(PaymentMethodId paymentMethodId, IClaimDestination claimDestination)
{
var network = _btcPayNetworkProvider.GetNetwork <BTCPayNetwork>(paymentMethodId.CryptoCode);
var explorerClient = _explorerClientProvider.GetExplorerClient(network);
if (claimDestination is IBitcoinLikeClaimDestination bitcoinLikeClaimDestination)
{
await explorerClient.TrackAsync(TrackedSource.Create(bitcoinLikeClaimDestination.Address));
}
}
public Task <TrackedSource> ConstructTrackedSource()
{
var data = GetData();
var explorerClient = _nbXplorerClientProvider.GetClient(data.CryptoCode);
var factory = explorerClient.Network.DerivationStrategyFactory;
if (string.IsNullOrEmpty(data
.DerivationStrategy))
{
return(Task.FromResult <TrackedSource>(TrackedSource.Create(BitcoinAddress.Create(
data.Address,
explorerClient.Network.NBitcoinNetwork))));
}
else
{
return(Task.FromResult <TrackedSource>(TrackedSource.Create(_derivationSchemeParser.Parse(factory,
data.DerivationStrategy))));
}
}
public Task <GetTransactionsResponse> GetTransactionsAsync(DerivationStrategyBase strategy, Bookmark[] confirmedBookmarks, Bookmark[] unconfirmedBookmarks, Bookmark[] replacedBookmarks, bool longPolling, CancellationToken cancellation = default)
{
return(GetTransactionsAsync(TrackedSource.Create(strategy), confirmedBookmarks, unconfirmedBookmarks, replacedBookmarks, longPolling, cancellation));
}
public Task TrackAsync(DerivationStrategyBase strategy, CancellationToken cancellation = default)
{
return(TrackAsync(TrackedSource.Create(strategy), cancellation));
}
public Task <GetTransactionsResponse> GetTransactionsAsync(DerivationStrategyBase strategy, CancellationToken cancellation = default)
{
return(GetTransactionsAsync(TrackedSource.Create(strategy), cancellation));
}
public static void WaitForTransaction(this LongPollingNotificationSession session, BitcoinAddress address, uint256 txId)
{
session.WaitForTransaction(TrackedSource.Create(address), txId);
}
public static void WaitForTransaction(this LongPollingNotificationSession session, DerivationStrategyBase derivationStrategy, uint256 txId)
{
session.WaitForTransaction(TrackedSource.Create(derivationStrategy), txId);
}
BuildModel(EditNBXplorerWalletExternalServiceDataViewModel viewModel, ExternalServiceData mainModel)
{
var failureViewModel = new EditNBXplorerWalletExternalServiceDataViewModel(viewModel);
failureViewModel.CryptoCodes = new SelectList(_nbXplorerOptions.Cryptos?.ToList() ?? new List <string>(),
viewModel.CryptoCode);
if (viewModel.Action.Equals("add-private-key", StringComparison.InvariantCultureIgnoreCase))
{
failureViewModel.PrivateKeys.Add(new PrivateKeyDetails());
return(null, failureViewModel);
}
if (viewModel.Action.StartsWith("remove-private-key", StringComparison.InvariantCultureIgnoreCase))
{
var index = int.Parse(viewModel.Action.Substring(viewModel.Action.IndexOf(":") + 1));
failureViewModel.PrivateKeys.RemoveAt(index);
return(null, failureViewModel);
}
if ((!string.IsNullOrEmpty(viewModel.DerivationStrategy) && !string.IsNullOrEmpty(viewModel.Address)) ||
string.IsNullOrEmpty(viewModel.DerivationStrategy) && string.IsNullOrEmpty(viewModel.Address))
{
ModelState.AddModelError(string.Empty,
"Please choose to track either an address OR a derivation scheme");
}
var client = _nbXplorerClientProvider.GetClient(viewModel.CryptoCode);
BitcoinAddress address = null;
DerivationStrategyBase derivationStrategy = null;
if (!string.IsNullOrEmpty(viewModel.Address) && !string.IsNullOrEmpty(viewModel.CryptoCode))
{
try
{
var factory = client.Network.DerivationStrategyFactory;
address = BitcoinAddress.Create(viewModel.Address, factory.Network);
}
catch (Exception)
{
ModelState.AddModelError(nameof(viewModel.Address), "Invalid Address");
}
}
if (!string.IsNullOrEmpty(viewModel.DerivationStrategy) && !string.IsNullOrEmpty(viewModel.CryptoCode))
{
try
{
var factory = client.Network.DerivationStrategyFactory;
derivationStrategy = _derivationSchemeParser.Parse(factory, viewModel.DerivationStrategy);
}
catch
{
ModelState.AddModelError(nameof(viewModel.DerivationStrategy), "Invalid Derivation Scheme");
}
}
//current External Service data
var externalServiceData = mainModel;
externalServiceData.Set(viewModel);
if (!ModelState.IsValid)
{
return(null, failureViewModel);
}
if (derivationStrategy != null)
{
client.Track(TrackedSource.Create(derivationStrategy));
}
if (address != null)
{
client.Track(TrackedSource.Create(address));
}
return(externalServiceData, null);
}
public async Task <string> WithdrawBtc(string withdrawHash, string recipient, decimal amount)
{
var coins = new List <UTXO>();
var coinsUsed = new List <UTXO>();
var estimatedFee = await client.GetFeeRateAsync(3);
try
{
await locker.WaitAsync();
while (coinsUsed.Sum(c => c.AsCoin().Amount.ToDecimal(MoneyUnit.BTC)) <= amount)
{
var txOperations = await client.GetUTXOsAsync(TrackedSource.Create(pubKey.GetAddress(ScriptPubKeyType.Legacy, Network.Main)));
foreach (var op in txOperations.Confirmed.UTXOs)
{
if (!usedInputs.ContainsKey(op.TransactionHash.ToString() + op.Value.Satoshi.ToString()))
{
coins.Add(op);
}
}
coins.Sort(delegate(UTXO x, UTXO y)
{
return(-x.AsCoin().Amount.CompareTo(y.AsCoin().Amount));
});
foreach (var item in coins)
{
if (coinsUsed.Sum(c => c.AsCoin().Amount.ToDecimal(MoneyUnit.BTC)) <= amount)
{
coinsUsed.Add(item);
usedInputs.Add(item.TransactionHash.ToString() + item.Value.Satoshi.ToString(), item);
}
else
{
break;
}
}
if (coinsUsed.Sum(c => c.AsCoin().Amount.ToDecimal(MoneyUnit.BTC)) < amount)
{
await Task.Delay(5000);
}
}
TransactionBuilder builder = null;
BitcoinPubKeyAddress destination = null;
if (network == NetworkType.Testnet)
{
builder = Network.TestNet.CreateTransactionBuilder();
destination = new BitcoinPubKeyAddress(recipient, Network.TestNet);
}
else
{
builder = Network.Main.CreateTransactionBuilder();
destination = new BitcoinPubKeyAddress(recipient, Network.Main);
}
NBitcoin.Transaction tx = builder
.AddCoins(coinsUsed.Select(c => c.AsCoin() /* .ScriptPubKey.ToBytes()*/))
.Send(destination, Money.Coins(amount))
.Send(TxNullDataTemplate.Instance.GenerateScriptPubKey(Encoding.UTF8.GetBytes(withdrawHash)), Money.Zero)
.SetChange(pubKey.GetAddress(ScriptPubKeyType.Legacy, Network.Main))
.SendEstimatedFees((await client.GetFeeRateAsync(3)).FeeRate)
.BuildTransaction(sign: false);
// Specify the path to unmanaged PKCS#11 library provided by the cryptographic device vendor
string pkcs11LibraryPath = @"/opt/cloudhsm/lib/libcloudhsm_pkcs11_standard.so";
// Create factories used by Pkcs11Interop library
Net.Pkcs11Interop.HighLevelAPI.Pkcs11InteropFactories factories = new Net.Pkcs11Interop.HighLevelAPI.Pkcs11InteropFactories();
// Load unmanaged PKCS#11 library
using (Net.Pkcs11Interop.HighLevelAPI.IPkcs11Library pkcs11Library = factories.Pkcs11LibraryFactory.LoadPkcs11Library(factories, pkcs11LibraryPath, AppType.MultiThreaded))
{
// Show general information about loaded library
Net.Pkcs11Interop.HighLevelAPI.ILibraryInfo libraryInfo = pkcs11Library.GetInfo();
Console.WriteLine("Library");
Console.WriteLine(" Manufacturer: " + libraryInfo.ManufacturerId);
Console.WriteLine(" Description: " + libraryInfo.LibraryDescription);
Console.WriteLine(" Version: " + libraryInfo.LibraryVersion);
// Get list of all available slots
foreach (Net.Pkcs11Interop.HighLevelAPI.ISlot slot in pkcs11Library.GetSlotList(SlotsType.WithOrWithoutTokenPresent))
{
// Show basic information about slot
Net.Pkcs11Interop.HighLevelAPI.ISlotInfo slotInfo = slot.GetSlotInfo();
Console.WriteLine();
Console.WriteLine("Slot");
Console.WriteLine(" Manufacturer: " + slotInfo.ManufacturerId);
Console.WriteLine(" Description: " + slotInfo.SlotDescription);
Console.WriteLine(" Token present: " + slotInfo.SlotFlags.TokenPresent);
if (slotInfo.SlotFlags.TokenPresent)
{
// Show basic information about token present in the slot
Net.Pkcs11Interop.HighLevelAPI.ITokenInfo tokenInfo = slot.GetTokenInfo();
Console.WriteLine("Token");
Console.WriteLine(" Manufacturer: " + tokenInfo.ManufacturerId);
Console.WriteLine(" Model: " + tokenInfo.Model);
Console.WriteLine(" Serial number: " + tokenInfo.SerialNumber);
Console.WriteLine(" Label: " + tokenInfo.Label);
// Show list of mechanisms (algorithms) supported by the token
Console.WriteLine("Supported mechanisms: ");
foreach (CKM mechanism in slot.GetMechanismList())
{
Console.WriteLine(" " + mechanism);
}
}
using (Net.Pkcs11Interop.HighLevelAPI.ISession session = slot.OpenSession(SessionType.ReadWrite))
{
session.Login(CKU.CKU_USER, pkcsUser);
// Specify signing mechanism
Net.Pkcs11Interop.HighLevelAPI.IMechanism mechanism = session.Factories.MechanismFactory.Create(CKM.CKM_ECDSA);
List <Net.Pkcs11Interop.HighLevelAPI.IObjectAttribute> publicKeyAttributes = new List <Net.Pkcs11Interop.HighLevelAPI.IObjectAttribute>();
publicKeyAttributes.Add(new Net.Pkcs11Interop.HighLevelAPI80.ObjectAttribute(CKA.CKA_LABEL, hsmKey));
publicKeyAttributes.Add(new Net.Pkcs11Interop.HighLevelAPI80.ObjectAttribute(CKA.CKA_SIGN, true));
Net.Pkcs11Interop.HighLevelAPI.IObjectHandle key = session.FindAllObjects(publicKeyAttributes).FirstOrDefault();
uint i = 0;
foreach (var c in tx.Inputs.AsIndexedInputs())
{
byte[] sourceData = c.GetSignatureHash(coinsUsed.First(cu => cu.Outpoint.Hash == c.PrevOut.Hash).AsCoin()).ToBytes();
Console.WriteLine("sourceData: " + tx.ToHex());
byte[] signature = session.Sign(mechanism, key, sourceData);
Console.WriteLine("signature: " + BitConverter.ToString(signature));
var canSig = ECDSASignatureFactory.FromComponents(signature).MakeCanonical();
var sig = new NBitcoin.TransactionSignature(new NBitcoin.Crypto.ECDSASignature(new NBitcoin.BouncyCastle.Math.BigInteger(canSig.R.ToByteArray()), new NBitcoin.BouncyCastle.Math.BigInteger(canSig.S.ToByteArray())), SigHash.Single);
builder = builder.AddKnownSignature(pubKey, sig, c.PrevOut);
TransactionSignature sig2 = null;
if (builder.TrySignInput(tx, i, SigHash.Single, out sig2))
{
Console.WriteLine("Input Signed");
Console.WriteLine(BitConverter.ToString(sig2.ToBytes()));
}
else
{
Console.WriteLine("Input Not Signed");
}
Console.WriteLine("tx: " + tx);
i++;
tx = builder.SignTransactionInPlace(tx);
}
Console.WriteLine("tx: " + tx);
TransactionPolicyError[] errors = null;
if (builder.Verify(tx, out errors))
{
var broadcastResult = await client.BroadcastAsync(tx);
broadcastResult.ToString();
Console.WriteLine("broadcast: " + tx.GetHash().ToString());
session.Logout();
return(tx.GetHash().ToString());
}
else
{
Console.WriteLine("Verify transaction failed");
}
if (errors != null)
{
foreach (var e in errors)
{
Console.WriteLine(e.ToString());
}
}
session.Logout();
}
}
}
return(null);
}
catch (Exception e)
{
Log.Error("Failed to send BTC Withdraw" + e.ToString());
throw e;
}
finally
{
locker.Release();
}
}
public async Task <WithdrawInfo> WithdrawBtc(string withdrawHash, string recipient, decimal amount)
{
var txOperations = await client.GetUTXOsAsync(TrackedSource.Create(wallet.GetAddress()));
var coins = new List <Coin>();
foreach (var op in txOperations.Confirmed.UTXOs)
{
coins.Add(op.AsCoin());
}
coins.Sort(delegate(Coin x, Coin y)
{
return(-x.Amount.CompareTo(y.Amount));
});
var coinSum = 0m;
for (int i = 0; coinSum < amount; i++)
{
coinSum += coins[i].Amount.ToDecimal(MoneyUnit.BTC);
if (coinSum >= amount)
{
coins.RemoveRange(i + 1, coins.Count - (i + 1));
}
}
TransactionBuilder builder = null;
BitcoinPubKeyAddress destination = null;
if (network == NetworkType.Testnet)
{
builder = Network.TestNet.CreateTransactionBuilder();
destination = new BitcoinPubKeyAddress(recipient, Network.TestNet);
}
else
{
builder = Network.Main.CreateTransactionBuilder();
destination = new BitcoinPubKeyAddress(recipient, Network.Main);
}
NBitcoin.Transaction tx = builder
.AddCoins(coins)
.AddKeys(wallet)
.Send(destination, Money.Coins(amount))
.Send(TxNullDataTemplate.Instance.GenerateScriptPubKey(Encoding.UTF8.GetBytes(withdrawHash)), Money.Zero)
.SetChange(wallet)
.SendFees(Money.Coins(0.0001m))
.BuildTransaction(sign: true);
TransactionPolicyError[] errors = null;
if (builder.Verify(tx, out errors))
{
var broadcastResult = await client.BroadcastAsync(tx);
broadcastResult.ToString();
return(new WithdrawInfo()
{
TxHash = tx.GetHash().ToString(), Timestamp = DateTime.Now
});
}
if (errors != null)
{
errors.ToString();
}
return(null);
}
public async Task <NBXplorerPublicWallet> Get(string cryptoCode, DerivationStrategyBase derivationStrategyBase)
{
var key = $"{cryptoCode}:{derivationStrategyBase}";
if (_wallets.ContainsKey(key))
{
return(_wallets[key]);
}
_wallets.Add(key, new NBXplorerPublicWallet(_clientProvider.GetClient(cryptoCode), TrackedSource.Create(derivationStrategyBase)));
return(await Get(cryptoCode, derivationStrategyBase));
}
public async Task <NBXplorerPublicWallet> Get(string cryptoCode, BitcoinAddress address)
{
var key = $"{cryptoCode}:{address}";
if (_wallets.ContainsKey(key))
{
return(_wallets[key]);
}
_wallets.Add(key, new NBXplorerPublicWallet(_clientProvider.GetClient(cryptoCode), TrackedSource.Create(address)));
return(await Get(cryptoCode, address));
}
