public async Task <Transaction> GetTransaction(string id)
{
var tx = await _client.GetRawTransactionAsync(id);
if (tx == null)
{
return(null);
}
var transaction = new Transaction
{
Blockhash = tx.Blockhash,
TransactionId = tx.Txid,
Size = tx.Size,
TransactionIn = new List <In>(),
TransactionsOut = new List <Out>(),
};
// this fails b/c no input validation
// Debug.Assert(id == transaction.TransactionId);
int index = 0;
foreach (var rpcIn in tx.Vin)
{
var inp = new In {
Index = index
};
if (rpcIn.Coinbase == null)
{
string hexScript = rpcIn.ScriptSig.Hex;
byte[] decodedScript = Encoders.Hex.DecodeData(hexScript);
Script script = new Script(decodedScript);
PayToPubkeyHashTemplate template = new PayToPubkeyHashTemplate();
PayToPubkeyHashScriptSigParameters param = template.ExtractScriptSigParameters(script);
if (param != null)
{
PubKey pubKey = param.PublicKey;
BitcoinPubKeyAddress address = pubKey.GetAddress(NetworkSpec.ObsidianMain());
inp.Address = address.ToString();
}
else
{
inp.Address = "none";
}
inp.TransactionId = rpcIn.Txid;
inp.VOut = (int)rpcIn.Vout;
inp.Sequence = rpcIn.Sequence;
inp.ScriptSigHex = rpcIn.ScriptSig.Hex;
}
else
{
inp.Coinbase = rpcIn.Coinbase;
inp.Sequence = rpcIn.Sequence;
}
transaction.TransactionIn.Add(inp);
}
if (transaction.TransactionIn[0].Coinbase != null)
{
//Debug.Assert(transaction.TransactionIn.Count == 1);
transaction.IsCoinBase = true;
}
index = 0;
foreach (var output in tx.Vout)
{
var @out = new Out
{
TransactionId = transaction.TransactionId,
Value = output.Value,
Quantity = output.N,
AssetId = null,
Index = index++
};
if (output.ScriptPubKey.Addresses != null) // Satoshi 14.2
{
@out.Address = output.ScriptPubKey.Addresses.FirstOrDefault();
}
else
{
string hexScript = output.ScriptPubKey.Hex;
if (!string.IsNullOrEmpty(hexScript))
{
byte[] decodedScript = Encoders.Hex.DecodeData(hexScript);
Script script = new Script(decodedScript);
var pubKey = PayToPubkeyTemplate.Instance.ExtractScriptPubKeyParameters(script);
BitcoinPubKeyAddress address = pubKey.GetAddress(NetworkSpec.ObsidianMain());
@out.Address = address.ToString();
}
else
{
@out.Address = "none";
}
}
transaction.TransactionsOut.Add(@out);
}
return(transaction);
}
public async Task <Transaction> GetTransaction(string id)
{
try
{
GetRawTransactionRpcModel tx = await RpcClient.GetRawTransactionAsync(id);
if (tx == null)
{
return(null);
}
TransactionType transactiontype = GetTransactionType(tx);
var transaction = new Transaction
{
OriginalJson = tx.OriginalJson,
TransactionType = transactiontype,
Blockhash = tx.Blockhash,
TransactionId = tx.Txid,
Size = tx.Size,
TransactionIn = new List <VIn>(),
TransactionsOut = new List <Out>(),
Time = tx.GetTime()
};
int index = 0;
foreach (var rpcIn in tx.Vin)
{
var vIn = new VIn
{
Index = index,
Coinbase = rpcIn.Coinbase,
Sequence = rpcIn.Sequence,
ScriptSigHex = rpcIn.ScriptSig?.Hex,
AssetId = null,
// pointer to previous tx/vout:
PrevTxIdPointer = rpcIn.Txid,
PrevVOutPointer = (int)rpcIn.Vout,
// we'll try to fetch this id possible
PrevVOutFetchedAddress = null,
PrevVOutFetchedValue = 0
};
if (rpcIn.Txid != null)
{
// Retrieve the origin address by retrieving the previous transaction and extracting the receive address and value
var previousTx = await RpcClient.GetRawTransactionAsync(rpcIn.Txid);
if (previousTx != null)
{
var n = rpcIn.Vout;
Debug.Assert(n == previousTx.Vout[n].N);
vIn.PrevVOutFetchedAddress = previousTx.Vout[n].ScriptPubKey.Addresses.First();
vIn.PrevVOutFetchedValue = previousTx.Vout[n].Value;
}
}
transaction.TransactionIn.Add(vIn);
}
index = 0;
foreach (var output in tx.Vout)
{
var @out = new Out
{
TransactionId = transaction.TransactionId,
Value = output.Value,
Quantity = output.N,
AssetId = null,
Index = index++,
};
if (output.ScriptPubKey.Addresses != null) // Satoshi 14.2
{
@out.Address = output.ScriptPubKey.Addresses.FirstOrDefault();
}
else
{
string hexScript = output.ScriptPubKey.Hex;
if (!string.IsNullOrEmpty(hexScript))
{
byte[] decodedScript = Encoders.Hex.DecodeData(hexScript);
Script script = new Script(decodedScript);
var pubKey = PayToPubkeyTemplate.Instance.ExtractScriptPubKeyParameters(script);
if (pubKey != null)
{
BitcoinPubKeyAddress address = pubKey.GetAddress(NetworkSpec.ObsidianMain());
@out.Address = address.ToString();
}
else
{
@out.Address = script.ToString();
}
}
else
{
Debug.Assert(output.ScriptPubKey.Type == NonStandardAddress);
@out.Address = output.ScriptPubKey.Type;
}
}
transaction.TransactionsOut.Add(@out);
}
return(transaction);
}
catch { }
return(null);
}
