public async Task <IActionResult> SweepFundsSpecifyInfo(SweepFundsViewModel viewModel, string command = "")
{
if (!ModelState.IsValid)
{
return(View(viewModel));
}
var wallet = new Wallet(viewModel.Seed, viewModel.Password, viewModel.KeyPath);
if (viewModel.XPub != wallet.GetMasterPublicWallet().ExtPubKey.ToBytes().ToHex())
{
ModelState.AddModelError(nameof(viewModel.Seed), "Seed/Password do not match configured wallet");
}
if (!ModelState.IsValid)
{
return(View(viewModel));
}
if (viewModel.SweepRequests == null)
{
return(await ComputeSweepRequests(viewModel));
}
return(await CheckIfCanSweepNow(viewModel, command));
}
public async Task <IActionResult> SweepFundsSpecifyInfo(int chainId, string xpub)
{
var configuredEthereumLikePaymentMethods = StoreData
.GetSupportedPaymentMethods(_btcPayNetworkProvider)
.OfType <EthereumSupportedPaymentMethod>()
.Select(method => (Network: _btcPayNetworkProvider.GetNetwork <EthereumBTCPayNetwork>(method.CryptoCode),
method))
.Where(method => method.Network.ChainId == chainId && method.method.XPub == xpub);
if (!configuredEthereumLikePaymentMethods.Any())
{
TempData.SetStatusMessageModel(new StatusMessageModel()
{
Message = $"Nothing configured to sweep", Severity = StatusMessageModel.StatusSeverity.Error
});
return(RedirectToAction("GetStoreEthereumLikePaymentMethods", new { storeId = StoreData.Id }));
}
var seedConfiguredMethod =
configuredEthereumLikePaymentMethods.FirstOrDefault(tuple => !string.IsNullOrEmpty(tuple.method.Seed));
var vm = new SweepFundsViewModel();
vm.ChainId = chainId;
vm.XPub = xpub;
if (seedConfiguredMethod.method != null)
{
vm.Seed = seedConfiguredMethod.method.Seed;
vm.Password = seedConfiguredMethod.method.Password;
vm.KeyPath = seedConfiguredMethod.method.KeyPath;
}
vm.KeyPath ??= configuredEthereumLikePaymentMethods.First().method.KeyPath;
return(View("SweepFundsSpecifyInfo", vm));
}
public async Task <bool> DoSweepAction(SweepFundsViewModel viewModel, Web3 web3)
{
var somethingHappened = false;
var grouped = viewModel.SweepRequests
.Select(request =>
{
var suff = request.Sufficient(viewModel.GasPrice.Value, out var diff);
return(request, suff, diff);
}).GroupBy(tuple => tuple.suff);
var sufficient = grouped.First(tuples => tuples.Key);
//do not sweep request for only native when not enough
var insufficient = grouped.FirstOrDefault(tuples => !tuples.Key)?
.Where(tuple => tuple.request.Tokens.Any(item => item.Amount > 0 && item.Sweep));
var ethForwardedTo = new Dictionary <string, ulong>();
foreach (var tuple in sufficient)
{
var w = new Wallet(viewModel.Seed, viewModel.Password, viewModel.KeyPath);
var acc = w.GetAccount((int)tuple.request.Index);
var accWeb3 = new Web3(acc, web3.Client);
var transferHandler = accWeb3.Eth.GetContractTransactionHandler <TransferFunction>();
foreach (var tokenSweepRequest in tuple.request.Tokens.Where(item =>
item.Sweep && string.IsNullOrEmpty(item.TransactionHash)))
{
var network = _btcPayNetworkProvider.GetNetwork <ERC20BTCPayNetwork>(tokenSweepRequest.CryptoCode);
var receipt = await transferHandler.SendRequestAndWaitForReceiptAsync(network.SmartContractAddress,
new TransferFunction()
{
Value = tokenSweepRequest.Amount,
To = viewModel.DestinationAddress,
GasPrice = viewModel.GasPrice.Value,
Gas = tokenSweepRequest.GasCost,
FromAddress = acc.Address,
});
tokenSweepRequest.TransactionHash = receipt.TransactionHash;
if (tokenSweepRequest.TransactionHash != null)
{
var i = await _invoiceRepository.GetInvoice(tokenSweepRequest.InvoiceId);
var pD = i.GetPayments(network.CryptoCode).Last(entity => entity.Accounted);
var ethpd = pD.GetCryptoPaymentData() as EthereumLikePaymentData;
ethpd.SweepingTransaction = tokenSweepRequest.TransactionHash;
pD.SetCryptoPaymentData(ethpd);
await _invoiceRepository.UpdatePayments(new List <PaymentEntity>() { pD });
somethingHappened = true;
}
}
if (tuple.diff > 0 && tuple.request.Native.Sweep)
{
var anyInsufficientThatCanWorkWithExcessFromThisAccount =
insufficient?.Where(valueTuple =>
{
ulong requiredAmount = valueTuple.diff;
if (ethForwardedTo.ContainsKey(valueTuple.request.Address))
{
var contributedAmount = ethForwardedTo[valueTuple.request.Address];
if (requiredAmount > contributedAmount)
{
//still need more
return(true);
}
else
{
return(false);
}
}
if (requiredAmount < tuple.diff)
{
//this takes care of it enough
return(true);
}
return(false);
});
var etherTransferService = accWeb3.Eth.GetEtherTransferService();
TransactionReceipt tx = null;
if (anyInsufficientThatCanWorkWithExcessFromThisAccount?.Any() is true)
{
var destination = anyInsufficientThatCanWorkWithExcessFromThisAccount.First();
var network =
_btcPayNetworkProvider.GetNetwork <EthereumBTCPayNetwork>(tuple.request.Native.CryptoCode);
var netAmount = EthereumLikePaymentData.GetValue(network, tuple.diff);
tx = await etherTransferService.TransferEtherAndWaitForReceiptAsync(destination.request.Address,
netAmount,
Web3.Convert.FromWei((BigInteger)viewModel.GasPrice, UnitConversion.EthUnit.Gwei),
tuple.request.Native.GasCost);
if (ethForwardedTo.TryGetValue(destination.request.Address, out var existingAmount))
{
ethForwardedTo[destination.request.Address] = existingAmount + tuple.diff;
}
else
{
ethForwardedTo.Add(destination.request.Address, tuple.diff);
}
}
else
{
var destination = viewModel.DestinationAddress;
var network =
_btcPayNetworkProvider.GetNetwork <EthereumBTCPayNetwork>(tuple.request.Native.CryptoCode);
var netAmount = EthereumLikePaymentData.GetValue(network, tuple.diff);
tx = await etherTransferService.TransferEtherAndWaitForReceiptAsync(destination,
netAmount,
Web3.Convert.FromWei((BigInteger)viewModel.GasPrice, UnitConversion.EthUnit.Gwei),
tuple.request.Native.GasCost);
}
if (tx != null)
{
tuple.request.Native.TransactionHash = tx.TransactionHash;
somethingHappened = true;
}
if (tx?.TransactionHash != null && !string.IsNullOrEmpty(tuple.request.Native.InvoiceId))
{
var i = await _invoiceRepository.GetInvoice(tuple.request.Native.InvoiceId);
var pD = i.GetPayments(tuple.request.Native.CryptoCode).Last(entity => entity.Accounted);
var ethpd = pD.GetCryptoPaymentData() as EthereumLikePaymentData;
ethpd.SweepingTransaction = tuple.request.Native.TransactionHash;
pD.SetCryptoPaymentData(ethpd);
await _invoiceRepository.UpdatePayments(new List <PaymentEntity>() { pD });
}
}
}
return(somethingHappened);
}
public async Task <IActionResult> CheckIfCanSweepNow(SweepFundsViewModel viewModel, string command,
bool leaveActiveInvoice = false)
{
var web3 = _ethereumService.GetWeb3(viewModel.ChainId);
if (web3 == null)
{
TempData.SetStatusMessageModel(new StatusMessageModel()
{
Message = $"Web3 not available", Severity = StatusMessageModel.StatusSeverity.Error
});
return(RedirectToAction("GetStoreEthereumLikePaymentMethods", new { storeId = StoreData.Id }));
}
viewModel.GasPrice ??= (ulong)(await web3.Eth.GasPrice.SendRequestAsync()).Value;
viewModel.SweepRequests = viewModel.SweepRequests
.Where(request =>
leaveActiveInvoice ||
string.IsNullOrEmpty(request.UnableToSweepBecauseOfActiveInvoiceWithNativeCurrency))
.OrderByDescending(request => request.Sufficient(viewModel.GasPrice.Value, out var excess)
).ToList();
var networks = _btcPayNetworkProvider.GetAll().OfType <EthereumBTCPayNetwork>()
.Where(network => network.ChainId == viewModel.ChainId);
var mainNetwork = networks.SingleOrDefault(network => !(network is ERC20BTCPayNetwork));
var etherTransferService = web3.Eth.GetEtherTransferService();
var transferHandler = web3.Eth.GetContractTransactionHandler <TransferFunction>();
foreach (var sweepRequest in viewModel.SweepRequests)
{
sweepRequest.Native ??= new SweepRequestItem()
{
Sweep = true, CryptoCode = mainNetwork.CryptoCode,
};
var amt = (await _ethereumService.GetBalance(mainNetwork, sweepRequest.Address)).Value;
sweepRequest.Native.Amount = amt;
sweepRequest.Native.GasCost = amt == 0
? 0
: (ulong)await etherTransferService.EstimateGasAsync(viewModel.DestinationAddress,
EthereumLikePaymentData.GetValue(mainNetwork, amt));
foreach (SweepRequestItem sweepRequestItem in sweepRequest.Tokens)
{
var network = _btcPayNetworkProvider.GetNetwork <ERC20BTCPayNetwork>(sweepRequestItem.CryptoCode);
sweepRequestItem.Amount = (await _ethereumService.GetBalance(network, sweepRequest.Address)).Value;
if (sweepRequestItem.Amount == 0 && string.IsNullOrEmpty(sweepRequestItem.TransactionHash))
{
sweepRequestItem.TransactionHash = "external sweep detected";
var i = await _invoiceRepository.GetInvoice(sweepRequestItem.InvoiceId);
var pD = i.GetPayments(network.CryptoCode).Last(entity => entity.Accounted);
var ethpd = pD.GetCryptoPaymentData() as EthereumLikePaymentData;
ethpd.SweepingTransaction = sweepRequestItem.TransactionHash;
pD.SetCryptoPaymentData(ethpd);
await _invoiceRepository.UpdatePayments(new List <PaymentEntity>() { pD });
}
var transfer = new TransferFunction()
{
To = viewModel.DestinationAddress,
Value = sweepRequestItem.Amount,
FromAddress = sweepRequest.Address
};
sweepRequestItem.GasCost =
(ulong)(await transferHandler.EstimateGasAsync(network.SmartContractAddress,
transfer))
.Value;
}
sweepRequest.Tokens = sweepRequest.Tokens.Where(item => item.Amount > 0).ToList();
}
if (command == "sweep")
{
if (await DoSweepAction(viewModel, web3))
{
return(await CheckIfCanSweepNow(viewModel, null));
}
}
return(View("SweepFundsSpecifyInfo", viewModel));
}
private async Task <IActionResult> ComputeSweepRequests(SweepFundsViewModel viewModel)
{
var invoices = await _invoiceRepository.GetInvoices(new InvoiceQuery()
{
StoreId = new[] { StoreData.Id },
Status = new[] { InvoiceState.ToString(InvoiceStatusLegacy.Complete) },
});
var invoicesWithPayment = invoices.Select(entity => (
entity,
entity.GetSupportedPaymentMethod <EthereumSupportedPaymentMethod>(),
entity.GetPayments()
.Where(paymentEntity => paymentEntity.Accounted &&
paymentEntity.Network is EthereumBTCPayNetwork ethN &&
ethN.ChainId == viewModel.ChainId)
.Select(paymentEntity => (paymentEntity,
paymentEntity.GetCryptoPaymentData() as EthereumLikePaymentData))
.Where(tuple =>
tuple.Item2 != null && string.IsNullOrEmpty(tuple.Item2.SweepingTransaction) &&
tuple.Item2.XPub == viewModel.XPub)))
.Where(tuple => tuple.Item3.Any());
if (!invoicesWithPayment.Any())
{
TempData.SetStatusMessageModel(new StatusMessageModel()
{
Message = $"Nothing found to sweep", Severity = StatusMessageModel.StatusSeverity.Error
});
return(RedirectToAction("GetStoreEthereumLikePaymentMethods", new { storeId = StoreData.Id }));
}
//need construct list address with ERC tokens and list address with ETH token
var payments = invoicesWithPayment.SelectMany(tuple => tuple.Item3.Select(valueTuple =>
(InvoiceId: tuple.entity.Id, PaymentEntity: valueTuple.paymentEntity, PaymentData: valueTuple.Item2)));
var groupedByAddress = payments.GroupBy(tuple => tuple.PaymentData.Address);
var networks = _btcPayNetworkProvider.GetAll().OfType <EthereumBTCPayNetwork>()
.Where(network => network.ChainId == viewModel.ChainId);
var mainNetwork = networks.SingleOrDefault(network => !(network is ERC20BTCPayNetwork));
var pmi = new PaymentMethodId(mainNetwork.CryptoCode, EthereumPaymentType.Instance);
//need send ETH to addresses even erc, make sure they not monitored in invoices
var ethInvoices =
await _invoiceRepository.GetInvoicesFromAddresses(groupedByAddress
.Select(tuples => $"{tuples.Key}#{pmi}").ToArray());
var pendingInvoices = await _invoiceRepository.GetPendingInvoices();
var pendingEthInvoices = ethInvoices.Where(entity => (pendingInvoices).Contains(entity.Id))
.Select(entity => (entity, entity.GetPaymentMethod(pmi))).Select(tuple => (tuple.entity, tuple.Item2,
tuple.Item2.GetPaymentMethodDetails() as EthereumLikeOnChainPaymentMethodDetails))
.ToDictionary(tuple => tuple.Item3.DepositAddress);
var requests = new List <SweepRequest>();
foreach (IGrouping <string, (string InvoiceId, PaymentEntity PaymentEntity, EthereumLikePaymentData
PaymentData)> grouping in groupedByAddress)
{
var request = new SweepRequest();
request.Address = grouping.Key;
request.Index = grouping.First().PaymentData.AccountIndex;
if (pendingEthInvoices.TryGetValue(grouping.Key, out var conflict))
{
request.UnableToSweepBecauseOfActiveInvoiceWithNativeCurrency = conflict.entity.Id;
}
foreach ((string InvoiceId, PaymentEntity PaymentEntity, EthereumLikePaymentData PaymentData)valueTuple
in grouping)
{
var network = valueTuple.PaymentEntity.Network as EthereumBTCPayNetwork;
var sweepRequestItem = new SweepRequestItem();
sweepRequestItem.CryptoCode = network.CryptoCode;
sweepRequestItem.InvoiceId = valueTuple.InvoiceId;
sweepRequestItem.Sweep =
string.IsNullOrEmpty(request.UnableToSweepBecauseOfActiveInvoiceWithNativeCurrency);
if (network is ERC20BTCPayNetwork erc20BTCPayNetwork)
{
request.Tokens.Add(sweepRequestItem);
}
else
{
request.Native = sweepRequestItem;
}
}
requests.Add(request);
}
viewModel.SweepRequests = requests;
return(await CheckIfCanSweepNow(viewModel, "", false));
}
