public void SendAndReceiveLocalSmartContractPropertyCallTransactionsUsingController()
{
using (SmartContractNodeBuilder builder = SmartContractNodeBuilder.Create(this))
{
CoreNode scSender = builder.CreateSmartContractPowNode().WithWallet().Start();
CoreNode scReceiver = builder.CreateSmartContractPowNode().WithWallet().Start();
int maturity = (int)scReceiver.FullNode.Network.Consensus.CoinbaseMaturity;
HdAddress addr = TestHelper.MineBlocks(scSender, maturity + 5).AddressUsed;
int spendable = GetSpendableBlocks(maturity + 5, maturity);
var total = scSender.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Sum(s => s.Transaction.Amount);
Assert.Equal(Money.COIN * spendable * 50, total);
SmartContractsController senderSmartContractsController = scSender.FullNode.NodeService <SmartContractsController>();
SmartContractWalletController senderWalletController = scSender.FullNode.NodeService <SmartContractWalletController>();
ContractCompilationResult compilationResult = ContractCompiler.CompileFile("SmartContracts/StorageDemo.cs");
Assert.True(compilationResult.Success);
Gas gasLimit = (Gas)(SmartContractFormatRule.GasLimitMaximum / 2);
var buildRequest = new BuildCreateContractTransactionRequest
{
AccountName = AccountName,
GasLimit = gasLimit,
GasPrice = SmartContractMempoolValidator.MinGasPrice,
ContractCode = compilationResult.Compilation.ToHexString(),
FeeAmount = "0.001",
Password = Password,
WalletName = WalletName,
Sender = addr.Address
};
JsonResult result = (JsonResult)senderSmartContractsController.BuildCreateSmartContractTransaction(buildRequest);
var response = (BuildCreateContractTransactionResponse)result.Value;
TestHelper.Connect(scSender, scReceiver);
SmartContractSharedSteps.SendTransaction(scSender, scReceiver, senderWalletController, response.Hex);
TestHelper.MineBlocks(scReceiver, 2);
TestHelper.WaitLoop(() => TestHelper.AreNodesSynced(scReceiver, scSender));
// Make a call request where the MethodName is the name of a property
var callRequest = new BuildCallContractTransactionRequest
{
AccountName = AccountName,
GasLimit = gasLimit,
GasPrice = SmartContractMempoolValidator.MinGasPrice,
Amount = "0",
MethodName = "Counter",
ContractAddress = response.NewContractAddress,
FeeAmount = "0.001",
Password = Password,
WalletName = WalletName,
Sender = addr.Address
};
result = (JsonResult)senderSmartContractsController.LocalCallSmartContractTransaction(callRequest);
var callResponse = (ILocalExecutionResult)result.Value;
// Check that the locally executed transaction returns the correct results
Assert.Equal(12345, callResponse.Return);
Assert.False(callResponse.Revert);
Assert.True(callResponse.GasConsumed > 0);
Assert.Null(callResponse.ErrorMessage);
Assert.NotNull(callResponse.InternalTransfers);
TestHelper.MineBlocks(scReceiver, 2);
TestHelper.WaitLoop(() => TestHelper.AreNodesSynced(scReceiver, scSender));
}
}
/// <summary>
/// Creates cold staking setup <see cref="Transaction"/>.
/// </summary>
/// <remarks>
/// The <paramref name="coldWalletAddress"/> and <paramref name="hotWalletAddress"/> would be expected to be
/// from different wallets and typically also different physical machines under normal circumstances. The following
/// rules are enforced by this method and would lead to a <see cref="WalletException"/> otherwise:
/// <list type="bullet">
/// <item><description>The cold and hot wallet addresses are expected to belong to different wallets.</description></item>
/// <item><description>Either the cold or hot wallet address must belong to a cold staking account in the wallet identified
/// by <paramref name="walletName"/></description></item>
/// <item><description>The account specified in <paramref name="walletAccount"/> can't be a cold staking account.</description></item>
/// </list>
/// </remarks>
/// <param name="walletTransactionHandler">The wallet transaction handler. Contains the <see cref="WalletTransactionHandler.BuildTransaction"/> method.</param>
/// <param name="coldWalletAddress">The cold wallet address generated by <see cref="GetColdStakingAddress"/>.</param>
/// <param name="hotWalletAddress">The hot wallet address generated by <see cref="GetColdStakingAddress"/>.</param>
/// <param name="walletName">The name of the wallet.</param>
/// <param name="walletAccount">The wallet account.</param>
/// <param name="walletPassword">The wallet password.</param>
/// <param name="amount">The amount to cold stake.</param>
/// <param name="feeAmount">The fee to pay for the cold staking setup transaction.</param>
/// <param name="useSegwitChangeAddress">Use a segwit style change address.</param>
/// <param name="payToScript">Indicate script staking (P2SH or P2WSH outputs).</param>
/// <returns>The <see cref="Transaction"/> for setting up cold staking.</returns>
/// <exception cref="WalletException">Thrown if any of the rules listed in the remarks section of this method are broken.</exception>
internal Transaction GetColdStakingSetupTransaction(IWalletTransactionHandler walletTransactionHandler,
string coldWalletAddress, string hotWalletAddress, string walletName, string walletAccount,
string walletPassword, Money amount, Money feeAmount, bool useSegwitChangeAddress = false, bool payToScript = false)
{
Guard.NotNull(walletTransactionHandler, nameof(walletTransactionHandler));
Guard.NotEmpty(coldWalletAddress, nameof(coldWalletAddress));
Guard.NotEmpty(hotWalletAddress, nameof(hotWalletAddress));
Guard.NotEmpty(walletName, nameof(walletName));
Guard.NotEmpty(walletAccount, nameof(walletAccount));
Guard.NotNull(amount, nameof(amount));
Guard.NotNull(feeAmount, nameof(feeAmount));
Wallet.Types.Wallet wallet = this.GetWalletByName(walletName);
// Get/create the cold staking accounts.
HdAccount coldAccount = this.GetOrCreateColdStakingAccount(walletName, true, walletPassword);
HdAccount hotAccount = this.GetOrCreateColdStakingAccount(walletName, false, walletPassword);
HdAddress coldAddress = coldAccount?.ExternalAddresses.FirstOrDefault(s => s.Address == coldWalletAddress || s.Bech32Address == coldWalletAddress);
HdAddress hotAddress = hotAccount?.ExternalAddresses.FirstOrDefault(s => s.Address == hotWalletAddress || s.Bech32Address == hotWalletAddress);
bool thisIsColdWallet = coldAddress != null;
bool thisIsHotWallet = hotAddress != null;
this.logger.LogDebug("Local wallet '{0}' does{1} contain cold wallet address '{2}' and does{3} contain hot wallet address '{4}'.",
walletName, thisIsColdWallet ? "" : " NOT", coldWalletAddress, thisIsHotWallet ? "" : " NOT", hotWalletAddress);
if (thisIsColdWallet && thisIsHotWallet)
{
this.logger.LogTrace("(-)[COLDSTAKE_BOTH_HOT_AND_COLD]");
throw new WalletException("You can't use this wallet as both hot wallet and cold wallet.");
}
if (!thisIsColdWallet && !thisIsHotWallet)
{
this.logger.LogTrace("(-)[COLDSTAKE_ADDRESSES_NOT_IN_ACCOUNTS]");
throw new WalletException("The hot and cold wallet addresses could not be found in the corresponding accounts.");
}
Script destination = null;
KeyId hotPubKeyHash = null;
KeyId coldPubKeyHash = null;
// Check if this is a segwit address
if (coldAddress?.Bech32Address == coldWalletAddress || hotAddress?.Bech32Address == hotWalletAddress)
{
hotPubKeyHash = new BitcoinWitPubKeyAddress(hotWalletAddress, wallet.Network).Hash.AsKeyId();
coldPubKeyHash = new BitcoinWitPubKeyAddress(coldWalletAddress, wallet.Network).Hash.AsKeyId();
destination = ColdStakingScriptTemplate.Instance.GenerateScriptPubKey(hotPubKeyHash, coldPubKeyHash);
if (payToScript)
{
HdAddress address = coldAddress ?? hotAddress;
address.RedeemScript = destination;
destination = destination.WitHash.ScriptPubKey;
}
}
else
{
hotPubKeyHash = new BitcoinPubKeyAddress(hotWalletAddress, wallet.Network).Hash;
coldPubKeyHash = new BitcoinPubKeyAddress(coldWalletAddress, wallet.Network).Hash;
destination = ColdStakingScriptTemplate.Instance.GenerateScriptPubKey(hotPubKeyHash, coldPubKeyHash);
if (payToScript)
{
HdAddress address = coldAddress ?? hotAddress;
address.RedeemScript = destination;
destination = destination.Hash.ScriptPubKey;
}
}
// Only normal accounts should be allowed.
if (this.GetAccounts(walletName).All(a => a.Name != walletAccount))
{
this.logger.LogTrace("(-)[COLDSTAKE_ACCOUNT_NOT_FOUND]");
throw new WalletException($"Can't find wallet account '{walletAccount}'.");
}
var context = new TransactionBuildContext(wallet.Network)
{
AccountReference = new WalletAccountReference(walletName, walletAccount),
TransactionFee = feeAmount,
MinConfirmations = 0,
Shuffle = false,
UseSegwitChangeAddress = useSegwitChangeAddress,
WalletPassword = walletPassword,
Recipients = new List <Recipient>()
{
new Recipient {
Amount = amount, ScriptPubKey = destination
}
}
};
if (payToScript)
{
// In the case of P2SH and P2WSH, to avoid the possibility of lose track of funds
// we add an opreturn with the hot and cold key hashes to the setup transaction
// this will allow a user to recreate the redeem script of the output in case they lose
// access to one of the keys.
// The special marker will help a wallet that is tracking cold staking accounts to monitor
// the hot and cold keys, if a special marker is found then the keys are in the opreturn are checked
// against the current wallet, if found and validated the wallet will track that ScriptPubKey
var opreturnKeys = new List <byte>();
opreturnKeys.AddRange(hotPubKeyHash.ToBytes());
opreturnKeys.AddRange(coldPubKeyHash.ToBytes());
context.OpReturnRawData = opreturnKeys.ToArray();
TxNullDataTemplate template = this.network.StandardScriptsRegistry.GetScriptTemplates.OfType <TxNullDataTemplate>().First();
if (template.MinRequiredSatoshiFee > 0)
{
context.OpReturnAmount = Money.Satoshis(template.MinRequiredSatoshiFee); // mandatory fee must be paid.
}
// The P2SH and P2WSH hide the cold stake keys in the script hash so the wallet cannot track
// the ouputs based on the derived keys when the trx is subbmited to the network.
// So we add the output script manually.
}
// Register the cold staking builder extension with the transaction builder.
context.TransactionBuilder.Extensions.Add(new ColdStakingBuilderExtension(false));
// Build the transaction.
Transaction transaction = walletTransactionHandler.BuildTransaction(context);
this.logger.LogTrace("(-)");
return(transaction);
}
public void SendAndReceiveSmartContractTransactionsUsingController()
{
using (SmartContractNodeBuilder builder = SmartContractNodeBuilder.Create(this))
{
CoreNode scSender = builder.CreateSmartContractPowNode().WithWallet().Start();
CoreNode scReceiver = builder.CreateSmartContractPowNode().WithWallet().Start();
int maturity = (int)scReceiver.FullNode.Network.Consensus.CoinbaseMaturity;
HdAddress addr = TestHelper.MineBlocks(scSender, maturity + 5).AddressUsed;
int spendable = GetSpendableBlocks(maturity + 5, maturity);
var total = scSender.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Sum(s => s.Transaction.Amount);
Assert.Equal(Money.COIN * spendable * 50, total);
SmartContractsController senderSmartContractsController = scSender.FullNode.NodeService <SmartContractsController>();
SmartContractWalletController senderWalletController = scSender.FullNode.NodeService <SmartContractWalletController>();
ContractCompilationResult compilationResult = ContractCompiler.CompileFile("SmartContracts/StorageDemo.cs");
Assert.True(compilationResult.Success);
Gas gasLimit = (Gas)(SmartContractFormatRule.GasLimitMaximum / 2);
var buildRequest = new BuildCreateContractTransactionRequest
{
AccountName = AccountName,
GasLimit = gasLimit,
GasPrice = SmartContractMempoolValidator.MinGasPrice,
ContractCode = compilationResult.Compilation.ToHexString(),
FeeAmount = "0.001",
Password = Password,
WalletName = WalletName,
Sender = addr.Address
};
JsonResult result = (JsonResult)senderSmartContractsController.BuildCreateSmartContractTransaction(buildRequest);
var response = (BuildCreateContractTransactionResponse)result.Value;
TestHelper.Connect(scSender, scReceiver);
SmartContractSharedSteps.SendTransaction(scSender, scReceiver, senderWalletController, response.Hex);
TestHelper.MineBlocks(scReceiver, 2);
TestHelper.WaitLoop(() => TestHelper.AreNodesSynced(scReceiver, scSender));
// Check receipt was stored and can be retrieved.
var receiptResponse = (ReceiptResponse)((JsonResult)senderSmartContractsController.GetReceipt(response.TransactionId.ToString())).Value;
Assert.True(receiptResponse.Success);
Assert.Equal(response.NewContractAddress, receiptResponse.NewContractAddress);
Assert.Null(receiptResponse.To);
Assert.Equal(addr.Address, receiptResponse.From);
string storageRequestResult = (string)((JsonResult)senderSmartContractsController.GetStorage(new GetStorageRequest
{
ContractAddress = response.NewContractAddress.ToString(),
StorageKey = "TestSave",
DataType = MethodParameterDataType.String
})).Value;
Assert.Equal("Hello, smart contract world!", storageRequestResult);
string ownerRequestResult = (string)((JsonResult)senderSmartContractsController.GetStorage(new GetStorageRequest
{
ContractAddress = response.NewContractAddress.ToString(),
StorageKey = "Owner",
DataType = MethodParameterDataType.Address
})).Value;
Assert.NotEmpty(ownerRequestResult);
string counterRequestResult = (string)((JsonResult)senderSmartContractsController.GetStorage(new GetStorageRequest
{
ContractAddress = response.NewContractAddress.ToString(),
StorageKey = "Counter",
DataType = MethodParameterDataType.Int
})).Value;
Assert.Equal("12345", counterRequestResult);
var callRequest = new BuildCallContractTransactionRequest
{
AccountName = AccountName,
GasLimit = gasLimit,
GasPrice = SmartContractMempoolValidator.MinGasPrice,
Amount = "0",
MethodName = "Increment",
ContractAddress = response.NewContractAddress,
FeeAmount = "0.001",
Password = Password,
WalletName = WalletName,
Sender = addr.Address
};
result = (JsonResult)senderSmartContractsController.BuildCallSmartContractTransaction(callRequest);
var callResponse = (BuildCallContractTransactionResponse)result.Value;
SmartContractSharedSteps.SendTransaction(scSender, scReceiver, senderWalletController, callResponse.Hex);
TestHelper.MineBlocks(scReceiver, 2);
TestHelper.WaitLoop(() => TestHelper.AreNodesSynced(scReceiver, scSender));
counterRequestResult = (string)((JsonResult)senderSmartContractsController.GetStorage(new GetStorageRequest
{
ContractAddress = response.NewContractAddress.ToString(),
StorageKey = "Counter",
DataType = MethodParameterDataType.Int
})).Value;
Assert.Equal("12346", counterRequestResult);
// Check receipt was stored and can be retrieved.
receiptResponse = (ReceiptResponse)((JsonResult)senderSmartContractsController.GetReceipt(callResponse.TransactionId.ToString())).Value;
Assert.True(receiptResponse.Success);
Assert.Null(receiptResponse.NewContractAddress);
Assert.Equal(response.NewContractAddress, receiptResponse.To);
Assert.Equal(addr.Address, receiptResponse.From);
// Test serialization
// TODO: When refactoring integration tests, move this to the one place and test all types, from method param to storage to serialization.
var serializationRequest = new BuildCallContractTransactionRequest
{
AccountName = AccountName,
GasLimit = gasLimit,
GasPrice = SmartContractMempoolValidator.MinGasPrice,
Amount = "0",
MethodName = "TestSerializer",
ContractAddress = response.NewContractAddress,
FeeAmount = "0.001",
Password = Password,
WalletName = WalletName,
Sender = addr.Address
};
result = (JsonResult)senderSmartContractsController.BuildCallSmartContractTransaction(serializationRequest);
var serializationResponse = (BuildCallContractTransactionResponse)result.Value;
SmartContractSharedSteps.SendTransaction(scSender, scReceiver, senderWalletController, serializationResponse.Hex);
TestHelper.MineBlocks(scReceiver, 2);
TestHelper.WaitLoop(() => TestHelper.AreNodesSynced(scReceiver, scSender));
// Would have only saved if execution completed successfully
counterRequestResult = (string)((JsonResult)senderSmartContractsController.GetStorage(new GetStorageRequest
{
ContractAddress = response.NewContractAddress.ToString(),
StorageKey = "Int32",
DataType = MethodParameterDataType.Int
})).Value;
Assert.Equal("12345", counterRequestResult);
}
}
public void FundTransaction_Given__a_wallet_has_enough_inputs__When__adding_inputs_to_an_existing_transaction__Then__the_transaction_is_funded_successfully()
{
DataFolder dataFolder = CreateDataFolder(this);
var wallet = WalletTestsHelpers.GenerateBlankWallet("myWallet1", "password");
var accountKeys = WalletTestsHelpers.GenerateAccountKeys(wallet, "password", "m/44'/0'/0'");
var spendingKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/0");
var destinationKeys1 = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/1");
var destinationKeys2 = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/2");
var destinationKeys3 = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/3");
var address = new HdAddress
{
Index = 0,
HdPath = $"m/44'/0'/0'/0/0",
Address = spendingKeys.Address.ToString(),
Pubkey = spendingKeys.PubKey.ScriptPubKey,
ScriptPubKey = spendingKeys.Address.ScriptPubKey,
Transactions = new List <TransactionData>()
};
// wallet with 4 coinbase outputs of 50 = 200 Bitcoin
var chain = new ConcurrentChain(wallet.Network);
WalletTestsHelpers.AddBlocksWithCoinbaseToChain(wallet.Network, chain, address, 4);
wallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
{
Index = 0,
Name = "account1",
HdPath = "m/44'/0'/0'",
ExtendedPubKey = accountKeys.ExtPubKey,
ExternalAddresses = new List <HdAddress> {
address
},
InternalAddresses = new List <HdAddress>()
});
var walletFeePolicy = new Mock <IWalletFeePolicy>();
walletFeePolicy.Setup(w => w.GetFeeRate(FeeType.Low.ToConfirmations())).Returns(new FeeRate(20000));
var overrideFeeRate = new FeeRate(20000);
var walletManager = new WalletManager(this.LoggerFactory.Object, Network.Main, chain, NodeSettings.Default(), new Mock <WalletSettings>().Object,
dataFolder, walletFeePolicy.Object, new Mock <IAsyncLoopFactory>().Object, new NodeLifetime(), DateTimeProvider.Default);
var walletTransactionHandler = new WalletTransactionHandler(this.LoggerFactory.Object, walletManager, walletFeePolicy.Object, Network.Main);
walletManager.Wallets.Add(wallet);
var walletReference = new WalletAccountReference
{
AccountName = "account1",
WalletName = "myWallet1"
};
// create a trx with 3 outputs 50 + 50 + 49 = 149 BTC
var context = new TransactionBuildContext(walletReference,
new[]
{
new Recipient {
Amount = new Money(50, MoneyUnit.BTC), ScriptPubKey = destinationKeys1.PubKey.ScriptPubKey
},
new Recipient {
Amount = new Money(50, MoneyUnit.BTC), ScriptPubKey = destinationKeys2.PubKey.ScriptPubKey
},
new Recipient {
Amount = new Money(49, MoneyUnit.BTC), ScriptPubKey = destinationKeys3.PubKey.ScriptPubKey
}
}
.ToList(), "password")
{
MinConfirmations = 0,
FeeType = FeeType.Low
};
var fundTransaction = walletTransactionHandler.BuildTransaction(context);
Assert.Equal(3, fundTransaction.Inputs.Count); // 3 inputs
Assert.Equal(4, fundTransaction.Outputs.Count); // 3 outputs with change
// remove the change output
fundTransaction.Outputs.Remove(fundTransaction.Outputs.First(f => f.ScriptPubKey == context.ChangeAddress.ScriptPubKey));
// remove 2 inputs they will be added back by fund transaction
fundTransaction.Inputs.RemoveAt(2);
fundTransaction.Inputs.RemoveAt(1);
Assert.Single(fundTransaction.Inputs); // 3 inputs
var fundTransactionClone = fundTransaction.Clone();
var fundContext = new TransactionBuildContext(walletReference, new List <Recipient>(), "password")
{
MinConfirmations = 0,
FeeType = FeeType.Low
};
fundContext.OverrideFeeRate = overrideFeeRate;
walletTransactionHandler.FundTransaction(fundContext, fundTransaction);
foreach (var input in fundTransactionClone.Inputs) // all original inputs are still in the trx
{
Assert.Contains(fundTransaction.Inputs, a => a.PrevOut == input.PrevOut);
}
Assert.Equal(3, fundTransaction.Inputs.Count); // we expect 3 inputs
Assert.Equal(4, fundTransaction.Outputs.Count); // we expect 4 outputs
Assert.Equal(new Money(150, MoneyUnit.BTC) - fundContext.TransactionFee, fundTransaction.TotalOut);
Assert.Contains(fundTransaction.Outputs, a => a.ScriptPubKey == destinationKeys1.PubKey.ScriptPubKey);
Assert.Contains(fundTransaction.Outputs, a => a.ScriptPubKey == destinationKeys2.PubKey.ScriptPubKey);
Assert.Contains(fundTransaction.Outputs, a => a.ScriptPubKey == destinationKeys3.PubKey.ScriptPubKey);
}
public void BuildTransactionFeeTooLowThrowsWalletException()
{
Assert.Throws <WalletException>(() =>
{
var walletFeePolicy = new Mock <IWalletFeePolicy>();
walletFeePolicy.Setup(w => w.GetFeeRate(FeeType.Low.ToConfirmations()))
.Returns(new FeeRate(0));
var wallet = WalletTestsHelpers.GenerateBlankWallet("myWallet1", "password");
var accountKeys = WalletTestsHelpers.GenerateAccountKeys(wallet, "password", "m/44'/0'/0'");
var spendingKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/0");
var destinationKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/1");
var changeKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "1/0");
var address = new HdAddress
{
Index = 0,
HdPath = $"m/44'/0'/0'/0/0",
Address = spendingKeys.Address.ToString(),
Pubkey = spendingKeys.PubKey.ScriptPubKey,
ScriptPubKey = spendingKeys.Address.ScriptPubKey,
Transactions = new List <TransactionData>()
};
var chain = new ConcurrentChain(wallet.Network);
WalletTestsHelpers.AddBlocksWithCoinbaseToChain(wallet.Network, chain, address);
wallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
{
Index = 0,
Name = "account1",
HdPath = "m/44'/0'/0'",
ExtendedPubKey = accountKeys.ExtPubKey,
ExternalAddresses = new List <HdAddress> {
address
},
InternalAddresses = new List <HdAddress>
{
new HdAddress {
Index = 0,
HdPath = $"m/44'/0'/0'/1/0",
Address = changeKeys.Address.ToString(),
Pubkey = changeKeys.PubKey.ScriptPubKey,
ScriptPubKey = changeKeys.Address.ScriptPubKey,
Transactions = new List <TransactionData>()
}
}
});
var dataDir = "TestData/WalletTransactionHandlerTest/BuildTransactionFeeTooLowThrowsWalletException";
var walletManager = new WalletManager(this.LoggerFactory.Object, Network.Main, chain, NodeSettings.Default(), new Mock <WalletSettings>().Object,
new DataFolder(new NodeSettings(args: new string[] { $"-datadir={dataDir}" }).DataDir), walletFeePolicy.Object, new Mock <IAsyncLoopFactory>().Object, new NodeLifetime(), DateTimeProvider.Default);
var walletTransactionHandler = new WalletTransactionHandler(this.LoggerFactory.Object, walletManager, walletFeePolicy.Object, Network.Main);
walletManager.Wallets.Add(wallet);
var walletReference = new WalletAccountReference
{
AccountName = "account1",
WalletName = "myWallet1"
};
walletTransactionHandler.BuildTransaction(CreateContext(walletReference, "password", destinationKeys.PubKey.ScriptPubKey, new Money(7500), FeeType.Low, 0));
});
}
public void WalletCanReorg()
{
// This test has 4 parts:
// Send first transaction from one wallet to another and wait for it to be confirmed
// Send a second transaction and wait for it to be confirmed
// Connect to a longer chain that causes a reorg so that the second trasnaction is undone
// Mine the second transaction back in to the main chain
using (NodeBuilder builder = NodeBuilder.Create(this))
{
CoreNode stratisSender = builder.CreateStratisPowNode(this.network).WithWallet().Start();
CoreNode stratisReceiver = builder.CreateStratisPowNode(this.network).WithWallet().Start();
CoreNode stratisReorg = builder.CreateStratisPowNode(this.network).WithWallet().Start();
int maturity = (int)stratisSender.FullNode.Network.Consensus.CoinbaseMaturity;
TestHelper.MineBlocks(stratisSender, maturity + 1 + 15);
int currentBestHeight = maturity + 1 + 15;
// The mining should add coins to the wallet.
long total = stratisSender.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Sum(s => s.Transaction.Amount);
Assert.Equal(Money.COIN * 16 * 50, total);
// Sync all nodes.
TestHelper.ConnectAndSync(stratisReceiver, stratisSender);
TestHelper.ConnectAndSync(stratisReceiver, stratisReorg);
TestHelper.ConnectAndSync(stratisSender, stratisReorg);
// Build Transaction 1.
// Send coins to the receiver.
HdAddress sendto = stratisReceiver.FullNode.WalletManager().GetUnusedAddress(new WalletAccountReference(WalletName, Account));
Transaction transaction1 = stratisSender.FullNode.WalletTransactionHandler().BuildTransaction(CreateContext(stratisSender.FullNode.Network, new WalletAccountReference(WalletName, Account), Password, sendto.ScriptPubKey, Money.COIN * 100, FeeType.Medium, 101));
// Broadcast to the other node.
stratisSender.FullNode.NodeController <WalletController>().SendTransactionAsync(new SendTransactionRequest(transaction1.ToHex()));
// Wait for the transaction to arrive.
TestBase.WaitLoop(() => stratisReceiver.CreateRPCClient().GetRawMempool().Length > 0);
Assert.NotNull(stratisReceiver.CreateRPCClient().GetRawTransaction(transaction1.GetHash(), null, false));
TestBase.WaitLoop(() => stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Any());
long receivetotal = stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Sum(s => s.Transaction.Amount);
Assert.Equal(Money.COIN * 100, receivetotal);
Assert.Null(stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).First().Transaction.BlockHeight);
// Generate two new blocks so the transaction is confirmed.
TestHelper.MineBlocks(stratisSender, 1);
int transaction1MinedHeight = currentBestHeight + 1;
TestHelper.MineBlocks(stratisSender, 1);
currentBestHeight = currentBestHeight + 2;
// Wait for block repo for block sync to work.
TestBase.WaitLoop(() => TestHelper.AreNodesSynced(stratisReceiver, stratisSender));
TestBase.WaitLoop(() => TestHelper.AreNodesSynced(stratisReceiver, stratisReorg));
Assert.Equal(currentBestHeight, stratisReceiver.FullNode.ChainIndexer.Tip.Height);
TestBase.WaitLoop(() => transaction1MinedHeight == stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).First().Transaction.BlockHeight);
// Build Transaction 2.
// Remove the reorg node.
TestHelper.Disconnect(stratisReceiver, stratisReorg);
TestHelper.Disconnect(stratisSender, stratisReorg);
ChainedHeader forkblock = stratisReceiver.FullNode.ChainIndexer.Tip;
// Send more coins to the wallet
sendto = stratisReceiver.FullNode.WalletManager().GetUnusedAddress(new WalletAccountReference(WalletName, Account));
Transaction transaction2 = stratisSender.FullNode.WalletTransactionHandler().BuildTransaction(CreateContext(stratisSender.FullNode.Network, new WalletAccountReference(WalletName, Account), Password, sendto.ScriptPubKey, Money.COIN * 10, FeeType.Medium, 101));
stratisSender.FullNode.NodeController <WalletController>().SendTransactionAsync(new SendTransactionRequest(transaction2.ToHex()));
// Wait for the transaction to arrive
TestBase.WaitLoop(() => stratisReceiver.CreateRPCClient().GetRawMempool().Length > 0);
Assert.NotNull(stratisReceiver.CreateRPCClient().GetRawTransaction(transaction2.GetHash(), null, false));
TestBase.WaitLoop(() => stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Any());
long newamount = stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Sum(s => s.Transaction.Amount);
Assert.Equal(Money.COIN * 110, newamount);
Assert.Contains(stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName), b => b.Transaction.BlockHeight == null);
// Mine more blocks so it gets included in the chain.
TestHelper.MineBlocks(stratisSender, 1);
int transaction2MinedHeight = currentBestHeight + 1;
TestHelper.MineBlocks(stratisSender, 1);
currentBestHeight = currentBestHeight + 2;
TestBase.WaitLoop(() => TestHelper.AreNodesSynced(stratisReceiver, stratisSender));
Assert.Equal(currentBestHeight, stratisReceiver.FullNode.ChainIndexer.Tip.Height);
TestBase.WaitLoop(() => stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Any(b => b.Transaction.BlockHeight == transaction2MinedHeight));
// Create a reorg by mining on two different chains.
// Advance both chains, one chain is longer.
TestHelper.MineBlocks(stratisSender, 2);
TestHelper.MineBlocks(stratisReorg, 10);
currentBestHeight = forkblock.Height + 10;
// Connect the reorg chain.
TestHelper.Connect(stratisReceiver, stratisReorg);
TestHelper.Connect(stratisSender, stratisReorg);
// Wait for the chains to catch up.
TestBase.WaitLoop(() => TestHelper.AreNodesSynced(stratisReceiver, stratisSender));
TestBase.WaitLoop(() => TestHelper.AreNodesSynced(stratisReceiver, stratisReorg, true));
Assert.Equal(currentBestHeight, stratisReceiver.FullNode.ChainIndexer.Tip.Height);
// Ensure wallet reorg completes.
TestBase.WaitLoop(() => stratisReceiver.FullNode.WalletManager().WalletTipHash == stratisReorg.CreateRPCClient().GetBestBlockHash());
// Check the wallet amount was rolled back.
long newtotal = stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Sum(s => s.Transaction.Amount);
Assert.Equal(receivetotal, newtotal);
TestBase.WaitLoop(() => maturity + 1 + 16 == stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).First().Transaction.BlockHeight);
// ReBuild Transaction 2.
// After the reorg transaction2 was returned back to mempool.
stratisSender.FullNode.NodeController <WalletController>().SendTransactionAsync(new SendTransactionRequest(transaction2.ToHex()));
TestBase.WaitLoop(() => stratisReceiver.CreateRPCClient().GetRawMempool().Length > 0);
// Mine the transaction again.
TestHelper.MineBlocks(stratisSender, 1);
transaction2MinedHeight = currentBestHeight + 1;
TestHelper.MineBlocks(stratisSender, 1);
currentBestHeight = currentBestHeight + 2;
TestBase.WaitLoop(() => TestHelper.AreNodesSynced(stratisReceiver, stratisSender));
TestBase.WaitLoop(() => TestHelper.AreNodesSynced(stratisReceiver, stratisReorg));
Assert.Equal(currentBestHeight, stratisReceiver.FullNode.ChainIndexer.Tip.Height);
long newsecondamount = stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Sum(s => s.Transaction.Amount);
Assert.Equal(newamount, newsecondamount);
TestBase.WaitLoop(() => stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Any(b => b.Transaction.BlockHeight == transaction2MinedHeight));
}
}
public void WalletBalanceCorrectWhenOnlySomeUnconfirmedAreIncludedInABlock()
{
using (NodeBuilder builder = NodeBuilder.Create(this))
{
CoreNode stratisSender = builder.CreateStratisPowNode(this.network).WithWallet().Start();
CoreNode stratisReceiver = builder.CreateStratisPowNode(this.network).WithWallet().Start();
int maturity = (int)stratisSender.FullNode.Network.Consensus.CoinbaseMaturity;
TestHelper.MineBlocks(stratisSender, maturity + 1 + 5);
// The mining should add coins to the wallet
long total = stratisSender.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Sum(s => s.Transaction.Amount);
Assert.Equal(Money.COIN * 6 * 50, total);
// Sync both nodes
TestHelper.ConnectAndSync(stratisSender, stratisReceiver);
// Send coins to the receiver
HdAddress sendto = stratisReceiver.FullNode.WalletManager().GetUnusedAddress(new WalletAccountReference(WalletName, Account));
Transaction trx = stratisSender.FullNode.WalletTransactionHandler().BuildTransaction(CreateContext(stratisSender.FullNode.Network,
new WalletAccountReference(WalletName, Account), Password, sendto.ScriptPubKey, Money.COIN * 100, FeeType.Medium, 101));
// Broadcast to the other node
stratisSender.FullNode.NodeController <WalletController>().SendTransactionAsync(new SendTransactionRequest(trx.ToHex()));
// Wait for the transaction to arrive
TestBase.WaitLoop(() => stratisReceiver.CreateRPCClient().GetRawMempool().Length > 0);
TestBase.WaitLoop(() => stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Any());
long receivetotal = stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName).Sum(s => s.Transaction.Amount);
Assert.Equal(Money.COIN * 100, receivetotal);
// Generate two new blocks so the transaction is confirmed
TestHelper.MineBlocks(stratisSender, 2);
TestBase.WaitLoop(() => TestHelper.AreNodesSynced(stratisReceiver, stratisSender));
// Send 1 transaction from the second node and let it get to the first.
sendto = stratisSender.FullNode.WalletManager().GetUnusedAddress(new WalletAccountReference(WalletName, Account));
Transaction testTx1 = stratisReceiver.FullNode.WalletTransactionHandler().BuildTransaction(CreateContext(stratisSender.FullNode.Network,
new WalletAccountReference(WalletName, Account), Password, sendto.ScriptPubKey, Money.COIN * 10, FeeType.Medium, 0));
stratisReceiver.FullNode.NodeController <WalletController>().SendTransactionAsync(new SendTransactionRequest(testTx1.ToHex()));
TestBase.WaitLoop(() => stratisSender.CreateRPCClient().GetRawMempool().Length > 0);
// Disconnect so the first node doesn't get any more transactions.
TestHelper.Disconnect(stratisReceiver, stratisSender);
// Send a second unconfirmed transaction on the second node which consumes the first.
Transaction testTx2 = stratisReceiver.FullNode.WalletTransactionHandler().BuildTransaction(CreateContext(stratisSender.FullNode.Network,
new WalletAccountReference(WalletName, Account), Password, sendto.ScriptPubKey, Money.COIN * 10, FeeType.Medium, 0));
stratisReceiver.FullNode.NodeService <IBroadcasterManager>().BroadcastTransactionAsync(testTx2);
// Now we can mine a block on the first node with only 1 of the transactions in it.
TestHelper.MineBlocks(stratisSender, 1);
// Connect the nodes again.
TestHelper.Connect(stratisSender, stratisReceiver);
// Second node receives a block with only one transaction in it.
TestBase.WaitLoop(() => TestHelper.AreNodesSynced(stratisReceiver, stratisSender, true));
// Now lets see what is in the second node's wallet!
IEnumerable <UnspentOutputReference> spendableTxs = stratisReceiver.FullNode.WalletManager().GetSpendableTransactionsInWallet(WalletName);
// There should be one spendable transaction. And it should be testTx2.
Assert.Single(spendableTxs);
Assert.Equal(testTx2.GetHash(), spendableTxs.First().Transaction.Id);
// It follows that if the above assert was violated we would have conflicts when we build a transaction.
// Specifically what we don't want is to have testTx1 in our spendable transactions, which was causing the known issue.
}
}
public BuildCreateContractTransactionResponse BuildCreateTx(BuildCreateContractTransactionRequest request)
{
if (!this.CheckBalance(request.Sender))
{
return(BuildCreateContractTransactionResponse.Failed(SenderNoBalanceError));
}
List <OutPoint> selectedInputs = this.SelectInputs(request.WalletName, request.Sender, request.Outpoints);
if (!selectedInputs.Any())
{
return(BuildCreateContractTransactionResponse.Failed("Invalid list of request outpoints have been passed to the method. Please ensure that the outpoints are spendable by the sender address"));
}
ContractTxData txData;
if (request.Parameters != null && request.Parameters.Any())
{
try
{
object[] methodParameters = this.methodParameterStringSerializer.Deserialize(request.Parameters);
txData = new ContractTxData(ReflectionVirtualMachine.VmVersion, (Stratis.SmartContracts.RuntimeObserver.Gas)request.GasPrice, (Stratis.SmartContracts.RuntimeObserver.Gas)request.GasLimit, request.ContractCode.HexToByteArray(), methodParameters);
}
catch (MethodParameterStringSerializerException exception)
{
return(BuildCreateContractTransactionResponse.Failed(exception.Message));
}
}
else
{
txData = new ContractTxData(ReflectionVirtualMachine.VmVersion, (Stratis.SmartContracts.RuntimeObserver.Gas)request.GasPrice, (Stratis.SmartContracts.RuntimeObserver.Gas)request.GasLimit, request.ContractCode.HexToByteArray());
}
HdAddress senderAddress = null;
if (!string.IsNullOrWhiteSpace(request.Sender))
{
Features.Wallet.Wallet wallet = this.walletManager.GetWallet(request.WalletName);
HdAccount account = wallet.GetAccount(request.AccountName);
if (account == null)
{
return(BuildCreateContractTransactionResponse.Failed($"No account with the name '{request.AccountName}' could be found."));
}
senderAddress = account.GetCombinedAddresses().FirstOrDefault(x => x.Address == request.Sender);
}
ulong totalFee = (request.GasPrice * request.GasLimit) + Money.Parse(request.FeeAmount);
var walletAccountReference = new WalletAccountReference(request.WalletName, request.AccountName);
byte[] serializedTxData = this.callDataSerializer.Serialize(txData);
Result <ContractTxData> deserialized = this.callDataSerializer.Deserialize(serializedTxData);
// We also want to ensure we're sending valid data: AKA it can be deserialized.
if (deserialized.IsFailure)
{
return(BuildCreateContractTransactionResponse.Failed("Invalid data. If network requires code signing, check the code contains a signature."));
}
var recipient = new Recipient {
Amount = request.Amount ?? "0", ScriptPubKey = new Script(serializedTxData)
};
var context = new TransactionBuildContext(this.network)
{
AccountReference = walletAccountReference,
TransactionFee = totalFee,
ChangeAddress = senderAddress,
SelectedInputs = selectedInputs,
MinConfirmations = MinConfirmationsAllChecks,
WalletPassword = request.Password,
Recipients = new[] { recipient }.ToList()
};
try
{
Transaction transaction = this.walletTransactionHandler.BuildTransaction(context);
uint160 contractAddress = this.addressGenerator.GenerateAddress(transaction.GetHash(), 0);
return(BuildCreateContractTransactionResponse.Succeeded(transaction, context.TransactionFee, contractAddress.ToBase58Address(this.network)));
}
catch (Exception exception)
{
return(BuildCreateContractTransactionResponse.Failed(exception.Message));
}
}
public EstimateFeeResult EstimateFee(ScTxFeeEstimateRequest request)
{
Features.Wallet.Wallet wallet = this.walletManager.GetWallet(request.WalletName);
HdAccount account = wallet.GetAccount(request.AccountName);
if (account == null)
{
return(EstimateFeeResult.Failure(AccountNotInWalletError, $"No account with the name '{request.AccountName}' could be found."));
}
HdAddress senderAddress = account.GetCombinedAddresses().FirstOrDefault(x => x.Address == request.Sender);
if (senderAddress == null)
{
return(EstimateFeeResult.Failure(SenderNotInWalletError, $"The given address {request.Sender} was not found in the wallet."));
}
if (!this.CheckBalance(senderAddress.Address))
{
return(EstimateFeeResult.Failure(InsufficientBalanceError, SenderNoBalanceError));
}
List <OutPoint> selectedInputs = this.SelectInputs(request.WalletName, request.Sender, request.Outpoints);
if (!selectedInputs.Any())
{
return(EstimateFeeResult.Failure(InvalidOutpointsError, "Invalid list of request outpoints have been passed to the method. Please ensure that the outpoints are spendable by the sender address."));
}
var recipients = new List <Recipient>();
foreach (RecipientModel recipientModel in request.Recipients)
{
uint160 address = recipientModel.DestinationAddress.ToUint160(this.network);
if (this.stateRoot.IsExist(address))
{
return(EstimateFeeResult.Failure(TransferFundsToContractError, $"The recipient address {recipientModel.DestinationAddress} is a contract. Transferring funds directly to a contract is not supported."));
}
recipients.Add(new Recipient
{
ScriptPubKey = BitcoinAddress.Create(recipientModel.DestinationAddress, this.network).ScriptPubKey,
Amount = recipientModel.Amount
});
}
// Build context
var context = new TransactionBuildContext(this.network)
{
AccountReference = new WalletAccountReference(request.WalletName, request.AccountName),
MinConfirmations = MinConfirmationsAllChecks,
Shuffle = false,
OpReturnData = request.OpReturnData,
OpReturnAmount = string.IsNullOrEmpty(request.OpReturnAmount) ? null : Money.Parse(request.OpReturnAmount),
SelectedInputs = selectedInputs,
AllowOtherInputs = false,
Recipients = recipients,
ChangeAddress = senderAddress,
// Unique for fee estimation
TransactionFee = null,
FeeType = FeeParser.Parse(request.FeeType),
Sign = false,
};
Money fee = this.walletTransactionHandler.EstimateFee(context);
return(EstimateFeeResult.Success(fee));
}
private BuildCallContractTransactionResponse BuildCallTx(BuildCallContractTransactionRequest request)
{
this.logger.LogTrace(request.ToString());
AddressBalance addressBalance = this.walletManager.GetAddressBalance(request.Sender);
if (addressBalance.AmountConfirmed == 0)
{
return(BuildCallContractTransactionResponse.Failed($"The 'Sender' address you're trying to spend from doesn't have a confirmed balance. Current unconfirmed balance: {addressBalance.AmountUnconfirmed}. Please check the 'Sender' address."));
}
var selectedInputs = new List <OutPoint>();
selectedInputs = this.walletManager.GetSpendableTransactionsInWallet(request.WalletName, MinConfirmationsAllChecks).Where(x => x.Address.Address == request.Sender).Select(x => x.ToOutPoint()).ToList();
ulong gasPrice = ulong.Parse(request.GasPrice);
ulong gasLimit = ulong.Parse(request.GasLimit);
uint160 addressNumeric = new Address(request.ContractAddress).ToUint160(this.network);
ContractTxData txData;
if (request.Parameters != null && request.Parameters.Any())
{
var methodParameters = this.callDataSerializer.MethodParamSerializer.Deserialize(request.Parameters);
txData = new ContractTxData(ReflectionVirtualMachine.VmVersion, (Gas)gasPrice, (Gas)gasLimit, addressNumeric, request.MethodName, methodParameters);
}
else
{
txData = new ContractTxData(ReflectionVirtualMachine.VmVersion, (Gas)gasPrice, (Gas)gasLimit, addressNumeric, request.MethodName);
}
HdAddress senderAddress = null;
if (!string.IsNullOrWhiteSpace(request.Sender))
{
Features.Wallet.Wallet wallet = this.walletManager.GetWallet(request.WalletName);
HdAccount account = wallet.GetAccountByCoinType(request.AccountName, this.coinType);
senderAddress = account.GetCombinedAddresses().FirstOrDefault(x => x.Address == request.Sender);
}
ulong totalFee = (gasPrice * gasLimit) + Money.Parse(request.FeeAmount);
var context = new TransactionBuildContext(this.network)
{
AccountReference = new WalletAccountReference(request.WalletName, request.AccountName),
TransactionFee = totalFee,
ChangeAddress = senderAddress,
SelectedInputs = selectedInputs,
MinConfirmations = MinConfirmationsAllChecks,
WalletPassword = request.Password,
Recipients = new[] { new Recipient {
Amount = request.Amount, ScriptPubKey = new Script(this.callDataSerializer.Serialize(txData))
} }.ToList()
};
try
{
Transaction transaction = this.walletTransactionHandler.BuildTransaction(context);
return(BuildCallContractTransactionResponse.Succeeded(request.MethodName, transaction, context.TransactionFee));
}
catch (Exception exception)
{
return(BuildCallContractTransactionResponse.Failed(exception.Message));
}
}
public BuildCallContractTransactionResponse BuildCallTx(BuildCallContractTransactionRequest request)
{
if (!this.CheckBalance(request.Sender))
{
return(BuildCallContractTransactionResponse.Failed(SenderNoBalanceError));
}
List <OutPoint> selectedInputs = this.SelectInputs(request.WalletName, request.Sender, request.Outpoints);
if (!selectedInputs.Any())
{
return(BuildCallContractTransactionResponse.Failed("Invalid list of request outpoints have been passed to the method. Please ensure that the outpoints are spendable by the sender address"));
}
uint160 addressNumeric = request.ContractAddress.ToUint160(this.network);
ContractTxData txData;
if (request.Parameters != null && request.Parameters.Any())
{
try
{
object[] methodParameters = this.methodParameterStringSerializer.Deserialize(request.Parameters);
txData = new ContractTxData(ReflectionVirtualMachine.VmVersion, (Stratis.SmartContracts.RuntimeObserver.Gas)request.GasPrice, (Stratis.SmartContracts.RuntimeObserver.Gas)request.GasLimit, addressNumeric, request.MethodName, methodParameters);
}
catch (MethodParameterStringSerializerException exception)
{
return(BuildCallContractTransactionResponse.Failed(exception.Message));
}
}
else
{
txData = new ContractTxData(ReflectionVirtualMachine.VmVersion, (Stratis.SmartContracts.RuntimeObserver.Gas)request.GasPrice, (Stratis.SmartContracts.RuntimeObserver.Gas)request.GasLimit, addressNumeric, request.MethodName);
}
HdAddress senderAddress = null;
if (!string.IsNullOrWhiteSpace(request.Sender))
{
Features.Wallet.Wallet wallet = this.walletManager.GetWallet(request.WalletName);
HdAccount account = wallet.GetAccount(request.AccountName);
if (account == null)
{
return(BuildCallContractTransactionResponse.Failed($"No account with the name '{request.AccountName}' could be found."));
}
senderAddress = account.GetCombinedAddresses().FirstOrDefault(x => x.Address == request.Sender);
}
ulong totalFee = (request.GasPrice * request.GasLimit) + Money.Parse(request.FeeAmount);
var context = new TransactionBuildContext(this.network)
{
AccountReference = new WalletAccountReference(request.WalletName, request.AccountName),
TransactionFee = totalFee,
ChangeAddress = senderAddress,
SelectedInputs = selectedInputs,
MinConfirmations = MinConfirmationsAllChecks,
WalletPassword = request.Password,
Recipients = new[] { new Recipient {
Amount = request.Amount, ScriptPubKey = new Script(this.callDataSerializer.Serialize(txData))
} }.ToList()
};
try
{
Transaction transaction = this.walletTransactionHandler.BuildTransaction(context);
return(BuildCallContractTransactionResponse.Succeeded(request.MethodName, transaction, context.TransactionFee));
}
catch (Exception exception)
{
return(BuildCallContractTransactionResponse.Failed(exception.Message));
}
}
public static Transaction SetupValidTransaction(Features.Wallet.Wallet wallet, string password, HdAddress spendingAddress, PubKey destinationPubKey, HdAddress changeAddress, Money amount, Money fee)
{
TransactionData spendingTransaction = spendingAddress.Transactions.ElementAt(0);
var coin = new Coin(spendingTransaction.Id, (uint)spendingTransaction.Index, spendingTransaction.Amount, spendingTransaction.ScriptPubKey);
Key privateKey = Key.Parse(wallet.EncryptedSeed, password, wallet.Network);
var builder = new TransactionBuilder(wallet.Network);
Transaction tx = builder
.AddCoins(new List <Coin> {
coin
})
.AddKeys(new ExtKey(privateKey, wallet.ChainCode).Derive(new KeyPath(spendingAddress.HdPath)).GetWif(wallet.Network))
.Send(destinationPubKey.ScriptPubKey, amount)
.SetChange(changeAddress.ScriptPubKey)
.SendFees(fee)
.BuildTransaction(true);
if (!builder.Verify(tx))
{
throw new WalletException("Could not build transaction, please make sure you entered the correct data.");
}
return(tx);
}
public static Transaction SetupValidTransaction(Features.Wallet.Wallet wallet, string password, HdAddress spendingAddress, PubKey destinationPubKey, HdAddress changeAddress, Money amount, Money fee)
{
return(SetupValidTransaction(wallet, password, spendingAddress, destinationPubKey.ScriptPubKey, changeAddress, amount, fee));
}
public void EstimateFeeWithLowFeeMatchesBuildTxLowFee()
{
var dataFolder = CreateDataFolder(this);
Wallet wallet = WalletTestsHelpers.GenerateBlankWallet("myWallet1", "password");
var accountKeys = WalletTestsHelpers.GenerateAccountKeys(wallet, "password", "m/44'/0'/0'");
var spendingKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/0");
var destinationKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/1");
HdAddress address = new HdAddress
{
Index = 0,
HdPath = $"m/44'/0'/0'/0/0",
Address = spendingKeys.Address.ToString(),
Pubkey = spendingKeys.PubKey.ScriptPubKey,
ScriptPubKey = spendingKeys.Address.ScriptPubKey,
Transactions = new List <TransactionData>()
};
ConcurrentChain chain = new ConcurrentChain(wallet.Network);
WalletTestsHelpers.AddBlocksWithCoinbaseToChain(wallet.Network, chain, address);
TransactionData addressTransaction = address.Transactions.First();
wallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
{
Index = 0,
Name = "account1",
HdPath = "m/44'/0'/0'",
ExtendedPubKey = accountKeys.ExtPubKey,
ExternalAddresses = new List <HdAddress> {
address
},
InternalAddresses = new List <HdAddress>()
});
var walletFeePolicy = new Mock <IWalletFeePolicy>();
walletFeePolicy.Setup(w => w.GetFeeRate(FeeType.Low.ToConfirmations()))
.Returns(new FeeRate(20000));
var walletManager = new WalletManager(this.LoggerFactory.Object, Network.Main, chain, NodeSettings.Default(), dataFolder,
walletFeePolicy.Object, new Mock <IAsyncLoopFactory>().Object, new NodeLifetime(), DateTimeProvider.Default);
WalletTransactionHandler walletTransactionHandler = new WalletTransactionHandler(this.LoggerFactory.Object, walletManager, walletFeePolicy.Object, Network.Main);
walletManager.Wallets.Add(wallet);
WalletAccountReference walletReference = new WalletAccountReference
{
AccountName = "account1",
WalletName = "myWallet1"
};
// Context to build requires password in order to sign transaction.
TransactionBuildContext buildContext = CreateContext(walletReference, "password", destinationKeys.PubKey.ScriptPubKey, new Money(7500), FeeType.Low, 0);
walletTransactionHandler.BuildTransaction(buildContext);
// Context for estimate does not need password.
TransactionBuildContext estimateContext = CreateContext(walletReference, null, destinationKeys.PubKey.ScriptPubKey, new Money(7500), FeeType.Low, 0);
Money fee = walletTransactionHandler.EstimateFee(estimateContext);
Assert.Equal(fee, buildContext.TransactionFee);
}
public void BuildTransactionNoChangeAdressesLeftCreatesNewChangeAddress()
{
DataFolder dataFolder = CreateDataFolder(this);
var wallet = WalletTestsHelpers.GenerateBlankWallet("myWallet1", "password");
var accountKeys = WalletTestsHelpers.GenerateAccountKeys(wallet, "password", "m/44'/0'/0'");
var spendingKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/0");
var destinationKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/1");
var address = new HdAddress
{
Index = 0,
HdPath = $"m/44'/0'/0'/0/0",
Address = spendingKeys.Address.ToString(),
Pubkey = spendingKeys.PubKey.ScriptPubKey,
ScriptPubKey = spendingKeys.Address.ScriptPubKey,
Transactions = new List <TransactionData>()
};
var chain = new ConcurrentChain(wallet.Network);
WalletTestsHelpers.AddBlocksWithCoinbaseToChain(wallet.Network, chain, address);
var addressTransaction = address.Transactions.First();
wallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
{
Index = 0,
Name = "account1",
HdPath = "m/44'/0'/0'",
ExtendedPubKey = accountKeys.ExtPubKey,
ExternalAddresses = new List <HdAddress> {
address
},
InternalAddresses = new List <HdAddress>()
});
var walletFeePolicy = new Mock <IWalletFeePolicy>();
walletFeePolicy.Setup(w => w.GetFeeRate(FeeType.Low.ToConfirmations()))
.Returns(new FeeRate(20000));
var walletManager = new WalletManager(this.LoggerFactory.Object, Network.Main, chain, NodeSettings.Default(), dataFolder,
walletFeePolicy.Object, new Mock <IAsyncLoopFactory>().Object, new NodeLifetime(), DateTimeProvider.Default);
var walletTransactionHandler = new WalletTransactionHandler(this.LoggerFactory.Object, walletManager, walletFeePolicy.Object, Network.Main);
walletManager.Wallets.Add(wallet);
var walletReference = new WalletAccountReference
{
AccountName = "account1",
WalletName = "myWallet1"
};
var context = CreateContext(walletReference, "password", destinationKeys.PubKey.ScriptPubKey, new Money(7500), FeeType.Low, 0);
var transactionResult = walletTransactionHandler.BuildTransaction(context);
var result = new Transaction(transactionResult.ToHex());
var expectedChangeAddressKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "1/0");
Assert.Single(result.Inputs);
Assert.Equal(addressTransaction.Id, result.Inputs[0].PrevOut.Hash);
Assert.Equal(2, result.Outputs.Count);
var output = result.Outputs[0];
Assert.Equal((addressTransaction.Amount - context.TransactionFee - 7500), output.Value);
Assert.Equal(expectedChangeAddressKeys.Address.ScriptPubKey, output.ScriptPubKey);
output = result.Outputs[1];
Assert.Equal(7500, output.Value);
Assert.Equal(destinationKeys.PubKey.ScriptPubKey, output.ScriptPubKey);
Assert.Equal(addressTransaction.Amount - context.TransactionFee, result.TotalOut);
Assert.NotNull(transactionResult.GetHash());
Assert.Equal(result.GetHash(), transactionResult.GetHash());
}
public IActionResult GetHistory([FromQuery] WalletHistoryRequest request)
{
Guard.NotNull(request, nameof(request));
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
var model = new WalletHistoryModel();
// Get a list of all the transactions found in an account (or in a wallet if no account is specified), with the addresses associated with them.
IEnumerable <AccountHistory> accountsHistory = this.walletManager.GetHistory(request.WalletName, request.AccountName);
foreach (AccountHistory accountHistory in accountsHistory)
{
var transactionItems = new List <TransactionItemModel>();
List <FlatHistory> items = accountHistory.History.OrderByDescending(o => o.Transaction.CreationTime).Take(200).ToList();
// Represents a sublist containing only the transactions that have already been spent.
List <FlatHistory> spendingDetails = items.Where(t => t.Transaction.SpendingDetails != null).ToList();
// Represents a sublist of transactions associated with receive addresses + a sublist of already spent transactions associated with change addresses.
// In effect, we filter out 'change' transactions that are not spent, as we don't want to show these in the history.
List <FlatHistory> history = items.Where(t => !t.Address.IsChangeAddress() || (t.Address.IsChangeAddress() && !t.Transaction.IsSpendable())).ToList();
// Represents a sublist of 'change' transactions.
List <FlatHistory> allchange = items.Where(t => t.Address.IsChangeAddress()).ToList();
foreach (FlatHistory item in history)
{
TransactionData transaction = item.Transaction;
HdAddress address = item.Address;
// We don't show in history transactions that are outputs of staking transactions.
if (transaction.IsCoinStake != null && transaction.IsCoinStake.Value && transaction.SpendingDetails == null)
{
continue;
}
// First we look for staking transaction as they require special attention.
// A staking transaction spends one of our inputs into 2 outputs, paid to the same address.
if (transaction.SpendingDetails?.IsCoinStake != null && transaction.SpendingDetails.IsCoinStake.Value)
{
// We look for the 2 outputs related to our spending input.
List <FlatHistory> relatedOutputs = items.Where(h => h.Transaction.Id == transaction.SpendingDetails.TransactionId && h.Transaction.IsCoinStake != null && h.Transaction.IsCoinStake.Value).ToList();
if (relatedOutputs.Any())
{
// Add staking transaction details.
// The staked amount is calculated as the difference between the sum of the outputs and the input and should normally be equal to 1.
var stakingItem = new TransactionItemModel
{
Type = TransactionItemType.Staked,
ToAddress = address.Address,
Amount = relatedOutputs.Sum(o => o.Transaction.Amount) - transaction.Amount,
Id = transaction.SpendingDetails.TransactionId,
Timestamp = transaction.SpendingDetails.CreationTime,
ConfirmedInBlock = transaction.SpendingDetails.BlockHeight
};
transactionItems.Add(stakingItem);
}
// No need for further processing if the transaction itself is the output of a staking transaction.
if (transaction.IsCoinStake != null)
{
continue;
}
}
// Create a record for a 'receive' transaction.
if (!address.IsChangeAddress())
{
// Add incoming fund transaction details.
var receivedItem = new TransactionItemModel
{
Type = TransactionItemType.Received,
ToAddress = address.Address,
Amount = transaction.Amount,
Id = transaction.Id,
Timestamp = transaction.CreationTime,
ConfirmedInBlock = transaction.BlockHeight
};
transactionItems.Add(receivedItem);
}
// If this is a normal transaction (not staking) that has been spent, add outgoing fund transaction details.
if (transaction.SpendingDetails != null && transaction.SpendingDetails.IsCoinStake == null)
{
// Create a record for a 'send' transaction.
uint256 spendingTransactionId = transaction.SpendingDetails.TransactionId;
var sentItem = new TransactionItemModel
{
Type = TransactionItemType.Send,
Id = spendingTransactionId,
Timestamp = transaction.SpendingDetails.CreationTime,
ConfirmedInBlock = transaction.SpendingDetails.BlockHeight,
Amount = Money.Zero
};
// If this 'send' transaction has made some external payments, i.e the funds were not sent to another address in the wallet.
if (transaction.SpendingDetails.Payments != null)
{
sentItem.Payments = new List <PaymentDetailModel>();
foreach (PaymentDetails payment in transaction.SpendingDetails.Payments)
{
sentItem.Payments.Add(new PaymentDetailModel
{
DestinationAddress = payment.DestinationAddress,
Amount = payment.Amount
});
sentItem.Amount += payment.Amount;
}
}
// Get the change address for this spending transaction.
FlatHistory changeAddress = allchange.FirstOrDefault(a => a.Transaction.Id == spendingTransactionId);
// Find all the spending details containing the spending transaction id and aggregate the sums.
// This is our best shot at finding the total value of inputs for this transaction.
var inputsAmount = new Money(spendingDetails.Where(t => t.Transaction.SpendingDetails.TransactionId == spendingTransactionId).Sum(t => t.Transaction.Amount));
// The fee is calculated as follows: funds in utxo - amount spent - amount sent as change.
sentItem.Fee = inputsAmount - sentItem.Amount - (changeAddress == null ? 0 : changeAddress.Transaction.Amount);
// Mined/staked coins add more coins to the total out.
// That makes the fee negative. If that's the case ignore the fee.
if (sentItem.Fee < 0)
{
sentItem.Fee = 0;
}
if (!transactionItems.Contains(sentItem, new SentTransactionItemModelComparer()))
{
transactionItems.Add(sentItem);
}
}
}
model.AccountsHistoryModel.Add(new AccountHistoryModel
{
TransactionsHistory = transactionItems.OrderByDescending(t => t.Timestamp).ToList(),
Name = accountHistory.Account.Name,
CoinType = this.coinType,
HdPath = accountHistory.Account.HdPath
});
}
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
