public async static Task <BitcoinTransactionInfo> GetBtcTransactionDetails(ConnectionState connectionState, CancellationToken token, TlsClientProtocol tls)
{
byte[] apdu = { 0xE0, 0xE0, 0x00, 0x00 };
byte[] response;
try
{
response = await SendWrappedAPDU(apdu, 11, connectionState, token, tls);
}
catch (Non9000SwException)
{
throw new TransactionNotActiveException();
}
BitcoinTransactionInfo transactionInfo = new BitcoinTransactionInfo();
if (response[0] != 0x00)
{
transactionInfo.transactionTooBigToDisplay = true;
}
else
{
transactionInfo.transactionTooBigToDisplay = false;
}
transactionInfo.currentOffset = Helper.MakeUint16(response, 1);
transactionInfo.numberOfInputs = Helper.MakeUint32(response, 3);
transactionInfo.remainingTime = Helper.MakeUint32(response, 7);
return(transactionInfo);
}
public static string ParseBitcoinTransaction(BitcoinTransactionInfo info, byte[] transaction, Int64[] inputAmounts, ref uint timeout)
{
string htmlOutput = "";
Int64 totalInputAmount = 0;
Int64 totalOutputAmount = 0;
if (info.transactionTooBigToDisplay == true)
{
throw new BtcParserException("Transaction too big to display.");
}
Transaction tx = new Transaction(BitConverter.ToString(transaction).Replace("-", ""));
if (tx.Inputs.Count != inputAmounts.Length)
{
throw new BtcParserException("Invalid transaction.");
}
for (int i = 0; i < inputAmounts.Length; i++)
{
totalInputAmount += inputAmounts[i];
}
htmlOutput += "<b>Inputs:</b><br>";
for (int i = 0; i < tx.Inputs.Count; i++)
{
string prevout = tx.Inputs[i].PrevOut.ToString();
htmlOutput += "Prevout: " + prevout + "<br>" + "Amount: " + new Money(inputAmounts[i]).ToString() + "<br><br>";
}
htmlOutput += "<b>Outputs:</b><br>";
for (int i = 0; i < tx.Outputs.Count; i++)
{
var script = tx.Outputs[i].ScriptPubKey;
var address = script.GetDestinationAddress(NBitcoin.Network.Main);
htmlOutput += "Address: " + address + "<br>" + "Amount: " + tx.Outputs[i].Value.ToString() + "<br><br>";
totalOutputAmount += tx.Outputs[i].Value.Satoshi;
}
Int64 fee = totalInputAmount - totalOutputAmount;
htmlOutput += "<b>Fee:</b><br>";
htmlOutput += new Money(fee).ToString();
timeout = info.remainingTime / 1000;
return(htmlOutput);
}
