private Transaction GetTransactionOrNull(Stratis.Bitcoin.Features.Wallet.TransactionData transactionData)
{
try
{
var transaction = transactionData?.Transaction;
return(transaction);
}
catch
{
return(null);
}
}
/// <summary>
/// Determines whether or not the input's address exists in the wallet's set of addresses.
/// </summary>
/// <param name="addresses">The wallet's external and internal addresses.</param>
/// <param name="txDictionary">The set of transactions to check against.</param>
/// <param name="txIn">The input to check.</param>
/// <returns><c>true</c>if the input's address exist in the wallet.</returns>
private bool IsTxInMine(IEnumerable <HdAddress> addresses, Dictionary <uint256, TransactionData> txDictionary, TxIn txIn)
{
TransactionData previousTransaction = null;
txDictionary.TryGetValue(txIn.PrevOut.Hash, out previousTransaction);
if (previousTransaction == null)
{
return(false);
}
var previousTx = this.blockStore.GetTransactionById(previousTransaction.Id);
if (txIn.PrevOut.N >= previousTx.Outputs.Count)
{
return(false);
}
// We now need to check if the scriptPubkey is in our wallet.
// See https://github.com/bitcoin/bitcoin/blob/011c39c2969420d7ca8b40fbf6f3364fe72da2d0/src/script/ismine.cpp
return(IsAddressMine(addresses, previousTx.Outputs[txIn.PrevOut.N].ScriptPubKey));
}
public async Task <GetTransactionModel> GetTransactionAsync(string txid)
{
if (!uint256.TryParse(txid, out uint256 trxid))
{
throw new ArgumentException(nameof(txid));
}
WalletAccountReference accountReference = this.GetAccount();
HdAccount account = this.walletManager.GetAccounts(accountReference.WalletName).Single(a => a.Name == accountReference.AccountName);
// Get the transaction from the wallet by looking into received and send transactions.
List <HdAddress> addresses = account.GetCombinedAddresses().ToList();
List <TransactionData> receivedTransactions = addresses.Where(r => !r.IsChangeAddress() && r.Transactions != null).SelectMany(a => a.Transactions.Where(t => t.Id == trxid)).ToList();
List <TransactionData> sendTransactions = addresses.Where(r => r.Transactions != null).SelectMany(a => a.Transactions.Where(t => t.SpendingDetails != null && t.SpendingDetails.TransactionId == trxid)).ToList();
if (!receivedTransactions.Any() && !sendTransactions.Any())
{
throw new RPCServerException(RPCErrorCode.RPC_INVALID_ADDRESS_OR_KEY, "Invalid or non-wallet transaction id.");
}
// Get the block hash from the transaction in the wallet.
TransactionData transactionFromWallet = null;
uint256 blockHash = null;
int? blockHeight;
if (receivedTransactions.Any())
{
blockHeight = receivedTransactions.First().BlockHeight;
blockHash = receivedTransactions.First().BlockHash;
transactionFromWallet = receivedTransactions.First();
}
else
{
blockHeight = sendTransactions.First().SpendingDetails.BlockHeight;
blockHash = blockHeight != null?this.Chain.GetBlock(blockHeight.Value).HashBlock : null;
}
// Get the block containing the transaction (if it has been confirmed).
ChainedHeaderBlock chainedHeaderBlock = null;
if (blockHash != null)
{
await this.ConsensusManager.GetOrDownloadBlocksAsync(new List <uint256> {
blockHash
}, b => { chainedHeaderBlock = b; });
}
Block block = null;
Transaction transactionFromStore = null;
if (chainedHeaderBlock != null)
{
block = chainedHeaderBlock.Block;
transactionFromStore = block.Transactions.Single(t => t.GetHash() == trxid);
}
DateTimeOffset transactionTime;
bool isGenerated;
string hex;
if (transactionFromStore != null)
{
transactionTime = Utils.UnixTimeToDateTime(transactionFromStore.Time);
isGenerated = transactionFromStore.IsCoinBase || transactionFromStore.IsCoinStake;
hex = transactionFromStore.ToHex();
}
else if (transactionFromWallet != null)
{
transactionTime = transactionFromWallet.CreationTime;
isGenerated = transactionFromWallet.IsCoinBase == true || transactionFromWallet.IsCoinStake == true;
hex = transactionFromWallet.Hex;
}
else
{
transactionTime = sendTransactions.First().SpendingDetails.CreationTime;
isGenerated = false;
hex = null; // TODO get from mempool
}
Money amountSent = sendTransactions.Select(s => s.SpendingDetails).SelectMany(sds => sds.Payments).GroupBy(p => p.DestinationAddress).Select(g => g.First()).Sum(p => p.Amount);
Money totalAmount = receivedTransactions.Sum(t => t.Amount) - amountSent;
var model = new GetTransactionModel
{
Amount = totalAmount.ToDecimal(MoneyUnit.BTC),
Fee = null,// TODO this still needs to be worked on.
Confirmations = blockHeight != null ? this.ConsensusManager.Tip.Height - blockHeight.Value + 1 : 0,
Isgenerated = isGenerated ? true : (bool?)null,
BlockHash = blockHash,
BlockIndex = block?.Transactions.FindIndex(t => t.GetHash() == trxid),
BlockTime = block?.Header.BlockTime.ToUnixTimeSeconds(),
TransactionId = uint256.Parse(txid),
TransactionTime = transactionTime.ToUnixTimeSeconds(),
TimeReceived = transactionTime.ToUnixTimeSeconds(),
Details = new List <GetTransactionDetailsModel>(),
Hex = hex
};
// Send transactions details.
foreach (PaymentDetails paymentDetail in sendTransactions.Select(s => s.SpendingDetails).SelectMany(sd => sd.Payments))
{
// Only a single item should appear per destination address.
if (model.Details.SingleOrDefault(d => d.Address == paymentDetail.DestinationAddress) == null)
{
model.Details.Add(new GetTransactionDetailsModel
{
Address = paymentDetail.DestinationAddress,
Category = GetTransactionDetailsCategoryModel.Send,
Amount = -paymentDetail.Amount.ToDecimal(MoneyUnit.BTC),
Fee = null, // TODO this still needs to be worked on.
OutputIndex = paymentDetail.OutputIndex
});
}
}
// Receive transactions details.
foreach (TransactionData trxInWallet in receivedTransactions)
{
GetTransactionDetailsCategoryModel category;
if (isGenerated)
{
category = model.Confirmations > this.FullNode.Network.Consensus.CoinbaseMaturity ? GetTransactionDetailsCategoryModel.Generate : GetTransactionDetailsCategoryModel.Immature;
}
else
{
category = GetTransactionDetailsCategoryModel.Receive;
}
model.Details.Add(new GetTransactionDetailsModel
{
Address = addresses.First(a => a.Transactions.Contains(trxInWallet)).Address,
Category = category,
Amount = trxInWallet.Amount.ToDecimal(MoneyUnit.BTC),
OutputIndex = trxInWallet.Index
});
}
return(model);
}
public GetTransactionModel GetTransaction(string txid)
{
if (!uint256.TryParse(txid, out uint256 trxid))
{
throw new ArgumentException(nameof(txid));
}
WalletAccountReference accountReference = this.GetWalletAccountReference();
HdAccount account = this.walletManager.GetAccounts(accountReference.WalletName).Single(a => a.Name == accountReference.AccountName);
// Get the transaction from the wallet by looking into received and send transactions.
List <HdAddress> addresses = account.GetCombinedAddresses().ToList();
List <TransactionData> receivedTransactions = addresses.Where(r => !r.IsChangeAddress() && r.Transactions != null).SelectMany(a => a.Transactions.Where(t => t.Id == trxid)).ToList();
List <TransactionData> sendTransactions = addresses.Where(r => r.Transactions != null).SelectMany(a => a.Transactions.Where(t => t.SpendingDetails != null && t.SpendingDetails.TransactionId == trxid)).ToList();
if (!receivedTransactions.Any() && !sendTransactions.Any())
{
throw new RPCServerException(RPCErrorCode.RPC_INVALID_ADDRESS_OR_KEY, "Invalid or non-wallet transaction id.");
}
// Get the block hash from the transaction in the wallet.
TransactionData transactionFromWallet = null;
uint256 blockHash = null;
int? blockHeight, blockIndex;
if (receivedTransactions.Any())
{
blockHeight = receivedTransactions.First().BlockHeight;
blockIndex = receivedTransactions.First().BlockIndex;
blockHash = receivedTransactions.First().BlockHash;
transactionFromWallet = receivedTransactions.First();
}
else
{
blockHeight = sendTransactions.First().SpendingDetails.BlockHeight;
blockIndex = sendTransactions.First().SpendingDetails.BlockIndex;
blockHash = blockHeight != null?this.ChainIndexer.GetHeader(blockHeight.Value).HashBlock : null;
}
// Get the block containing the transaction (if it has been confirmed).
ChainedHeaderBlock chainedHeaderBlock = null;
if (blockHash != null)
{
this.ConsensusManager.GetOrDownloadBlocks(new List <uint256> {
blockHash
}, b => { chainedHeaderBlock = b; });
}
Block block = null;
Transaction transactionFromStore = null;
if (chainedHeaderBlock != null)
{
block = chainedHeaderBlock.Block;
transactionFromStore = block.Transactions.Single(t => t.GetHash() == trxid);
}
DateTimeOffset transactionTime;
bool isGenerated;
string hex;
if (transactionFromStore != null)
{
transactionTime = Utils.UnixTimeToDateTime(transactionFromStore.Time);
isGenerated = transactionFromStore.IsCoinBase || transactionFromStore.IsCoinStake;
hex = transactionFromStore.ToHex();
}
else if (transactionFromWallet != null)
{
transactionTime = transactionFromWallet.CreationTime;
isGenerated = transactionFromWallet.IsCoinBase == true || transactionFromWallet.IsCoinStake == true;
hex = transactionFromWallet.Hex;
}
else
{
transactionTime = sendTransactions.First().SpendingDetails.CreationTime;
isGenerated = false;
hex = null; // TODO get from mempool
}
var model = new GetTransactionModel
{
Confirmations = blockHeight != null ? this.ConsensusManager.Tip.Height - blockHeight.Value + 1 : 0,
Isgenerated = isGenerated ? true : (bool?)null,
BlockHash = blockHash,
BlockIndex = blockIndex ?? block?.Transactions.FindIndex(t => t.GetHash() == trxid),
BlockTime = block?.Header.BlockTime.ToUnixTimeSeconds(),
TransactionId = uint256.Parse(txid),
TransactionTime = transactionTime.ToUnixTimeSeconds(),
TimeReceived = transactionTime.ToUnixTimeSeconds(),
Details = new List <GetTransactionDetailsModel>(),
Hex = hex
};
Money feeSent = Money.Zero;
if (sendTransactions.Any())
{
Wallet wallet = this.walletManager.GetWallet(accountReference.WalletName);
feeSent = wallet.GetSentTransactionFee(trxid);
}
// Send transactions details.
foreach (PaymentDetails paymentDetail in sendTransactions.Select(s => s.SpendingDetails).SelectMany(sd => sd.Payments))
{
// Only a single item should appear per destination address.
if (model.Details.SingleOrDefault(d => d.Address == paymentDetail.DestinationAddress) == null)
{
model.Details.Add(new GetTransactionDetailsModel
{
Address = paymentDetail.DestinationAddress,
Category = GetTransactionDetailsCategoryModel.Send,
Amount = -paymentDetail.Amount.ToDecimal(MoneyUnit.BTC),
Fee = -feeSent.ToDecimal(MoneyUnit.BTC),
OutputIndex = paymentDetail.OutputIndex
});
}
}
// Get the ColdStaking script template if available.
Dictionary <string, ScriptTemplate> templates = this.walletManager.GetValidStakingTemplates();
ScriptTemplate coldStakingTemplate = templates.ContainsKey("ColdStaking") ? templates["ColdStaking"] : null;
// Receive transactions details.
foreach (TransactionData trxInWallet in receivedTransactions)
{
// Skip the details if the script pub key is cold staking.
if (coldStakingTemplate != null && coldStakingTemplate.CheckScriptPubKey(trxInWallet.ScriptPubKey))
{
continue;
}
GetTransactionDetailsCategoryModel category;
if (isGenerated)
{
category = model.Confirmations > this.FullNode.Network.Consensus.CoinbaseMaturity ? GetTransactionDetailsCategoryModel.Generate : GetTransactionDetailsCategoryModel.Immature;
}
else
{
category = GetTransactionDetailsCategoryModel.Receive;
}
model.Details.Add(new GetTransactionDetailsModel
{
Address = addresses.First(a => a.Transactions.Contains(trxInWallet)).Address,
Category = category,
Amount = trxInWallet.Amount.ToDecimal(MoneyUnit.BTC),
OutputIndex = trxInWallet.Index
});
}
model.Amount = model.Details.Sum(d => d.Amount);
model.Fee = model.Details.FirstOrDefault(d => d.Category == GetTransactionDetailsCategoryModel.Send)?.Fee;
return(model);
}
public GetTransactionModel GetTransaction(string txid)
{
if (!uint256.TryParse(txid, out uint256 trxid))
{
throw new ArgumentException(nameof(txid));
}
WalletAccountReference accountReference = this.GetWalletAccountReference();
Wallet hdWallet = this.walletManager.WalletRepository.GetWallet(accountReference.WalletName);
HdAccount hdAccount = this.walletManager.WalletRepository.GetAccounts(hdWallet, accountReference.AccountName).First();
IWalletAddressReadOnlyLookup addressLookup = this.walletManager.WalletRepository.GetWalletAddressLookup(accountReference.WalletName);
bool IsChangeAddress(Script scriptPubKey)
{
return(addressLookup.Contains(scriptPubKey, out AddressIdentifier addressIdentifier) && addressIdentifier.AddressType == 1);
}
// Get the transaction from the wallet by looking into received and send transactions.
List <TransactionData> receivedTransactions = this.walletManager.WalletRepository.GetTransactionOutputs(hdAccount, null, trxid, true)
.Where(td => !IsChangeAddress(td.ScriptPubKey)).ToList();
List <TransactionData> sentTransactions = this.walletManager.WalletRepository.GetTransactionInputs(hdAccount, null, trxid, true).ToList();
TransactionData firstReceivedTransaction = receivedTransactions.FirstOrDefault();
TransactionData firstSendTransaction = sentTransactions.FirstOrDefault();
if (firstReceivedTransaction == null && firstSendTransaction == null)
{
throw new RPCServerException(RPCErrorCode.RPC_INVALID_ADDRESS_OR_KEY, "Invalid or non-wallet transaction id.");
}
uint256 blockHash = null;
int? blockHeight, blockIndex;
DateTimeOffset transactionTime;
SpendingDetails spendingDetails = firstSendTransaction?.SpendingDetails;
if (firstReceivedTransaction != null)
{
blockHeight = firstReceivedTransaction.BlockHeight;
blockIndex = firstReceivedTransaction.BlockIndex;
blockHash = firstReceivedTransaction.BlockHash;
transactionTime = firstReceivedTransaction.CreationTime;
}
else
{
blockHeight = spendingDetails.BlockHeight;
blockIndex = spendingDetails.BlockIndex;
blockHash = spendingDetails.BlockHash;
transactionTime = spendingDetails.CreationTime;
}
// Get the block containing the transaction (if it has been confirmed).
ChainedHeaderBlock chainedHeaderBlock = null;
if (blockHash != null)
{
this.ConsensusManager.GetOrDownloadBlocks(new List <uint256> {
blockHash
}, b => { chainedHeaderBlock = b; });
}
Block block = null;
Transaction transactionFromStore = null;
if (chainedHeaderBlock != null)
{
block = chainedHeaderBlock.Block;
if (block != null)
{
if (blockIndex == null)
{
blockIndex = block.Transactions.FindIndex(t => t.GetHash() == trxid);
}
transactionFromStore = block.Transactions[(int)blockIndex];
}
}
bool isGenerated;
string hex;
if (transactionFromStore != null)
{
transactionTime = Utils.UnixTimeToDateTime(chainedHeaderBlock.ChainedHeader.Header.Time);
isGenerated = transactionFromStore.IsCoinBase || transactionFromStore.IsCoinStake;
hex = transactionFromStore.ToHex();
}
else
{
isGenerated = false;
hex = null; // TODO get from mempool
}
var model = new GetTransactionModel
{
Confirmations = blockHeight != null ? this.ConsensusManager.Tip.Height - blockHeight.Value + 1 : 0,
Isgenerated = isGenerated ? true : (bool?)null,
BlockHash = blockHash,
BlockIndex = blockIndex,
BlockTime = block?.Header.BlockTime.ToUnixTimeSeconds(),
TransactionId = uint256.Parse(txid),
TransactionTime = transactionTime.ToUnixTimeSeconds(),
TimeReceived = transactionTime.ToUnixTimeSeconds(),
Details = new List <GetTransactionDetailsModel>(),
Hex = hex
};
// Send transactions details.
if (spendingDetails != null)
{
Money feeSent = Money.Zero;
if (firstSendTransaction != null)
{
// Get the change.
long change = spendingDetails.Change.Sum(o => o.Amount);
Money inputsAmount = new Money(sentTransactions.Sum(i => i.Amount));
Money outputsAmount = new Money(spendingDetails.Payments.Sum(p => p.Amount) + change);
feeSent = inputsAmount - outputsAmount;
}
var details = spendingDetails.Payments
.GroupBy(detail => detail.DestinationAddress)
.Select(p => new GetTransactionDetailsModel()
{
Address = p.Key,
Category = GetTransactionDetailsCategoryModel.Send,
OutputIndex = p.First().OutputIndex,
Amount = 0 - p.Sum(detail => detail.Amount.ToDecimal(MoneyUnit.BTC)),
Fee = -feeSent.ToDecimal(MoneyUnit.BTC)
});
model.Details.AddRange(details);
}
// Get the ColdStaking script template if available.
Dictionary <string, ScriptTemplate> templates = this.walletManager.GetValidStakingTemplates();
ScriptTemplate coldStakingTemplate = templates.ContainsKey("ColdStaking") ? templates["ColdStaking"] : null;
// Receive transactions details.
IScriptAddressReader scriptAddressReader = this.FullNode.NodeService <IScriptAddressReader>();
foreach (TransactionData trxInWallet in receivedTransactions)
{
// Skip the details if the script pub key is cold staking.
// TODO: Verify if we actually need this any longer, after changing the internals to recognize account type
if (coldStakingTemplate != null && coldStakingTemplate.CheckScriptPubKey(trxInWallet.ScriptPubKey))
{
continue;
}
GetTransactionDetailsCategoryModel category;
if (isGenerated)
{
category = model.Confirmations > this.FullNode.Network.Consensus.CoinbaseMaturity ? GetTransactionDetailsCategoryModel.Generate : GetTransactionDetailsCategoryModel.Immature;
}
else
{
category = GetTransactionDetailsCategoryModel.Receive;
}
string address = scriptAddressReader.GetAddressFromScriptPubKey(this.FullNode.Network, trxInWallet.ScriptPubKey);
model.Details.Add(new GetTransactionDetailsModel
{
Address = address,
Category = category,
Amount = trxInWallet.Amount.ToDecimal(MoneyUnit.BTC),
OutputIndex = trxInWallet.Index
});
}
model.Amount = model.Details.Sum(d => d.Amount);
model.Fee = model.Details.FirstOrDefault(d => d.Category == GetTransactionDetailsCategoryModel.Send)?.Fee;
return(model);
}
