public async Task <Error> GenerateFees(BitcoinSecret sourceSecret, BitcoinSecret destinationSecret, int feeCount)
{
var feeAmount = Settings.Constants.BTCToSathoshiMultiplicationFactor / 100;
var coins = await explorerHelper.GetCoinsForWallet(sourceSecret.GetAddress().ToString(), 10, 0, null, null,
null, true) as GetOrdinaryCoinsForWalletReturnType;
if (coins.Error == null)
{
var selectedCoin = coins.Coins.Where(c => c.Amount >= (ulong)feeCount
* Settings.Constants.BTCToSathoshiMultiplicationFactor).FirstOrDefault();
if (selectedCoin == null)
{
Error retError = new Error();
retError.Message = "Could not find the proper coin to spend.";
return(retError);
}
try
{
TransactionBuilder builder = new TransactionBuilder();
builder.AddKeys(sourceSecret).AddCoins(selectedCoin);
for (int i = 0; i < feeCount; i++)
{
builder.Send(destinationSecret.GetAddress(),
new Money(feeAmount));
}
builder.SetChange(sourceSecret.GetAddress());
builder.SendFees(new Money(feeCount * 100000));
var tx = builder.BuildTransaction(true);
await transactionBroadcaster.BroadcastTransactionToBlockchain(tx.ToHex());
using (BlockchainStateManagerContext context = new BlockchainStateManagerContext())
{
IList <Fee> fees = new List <Fee>();
var txHash = tx.GetHash().ToString();
for (uint i = 0; i < feeCount; i++)
{
if (tx.Outputs[i].Value != feeAmount)
{
continue;
}
fees.Add(new Fee
{
Consumed = false,
TransactionId = txHash,
OutputNumber = (int)i,
Satoshi = (long)feeAmount,
PrivateKey = destinationSecret.ToString(),
Script = tx.Outputs[i].ScriptPubKey.ToString()
});
}
context.Fees.AddRange(fees);
await context.SaveChangesAsync();
}
}
catch (Exception exp)
{
Error retError = new Error();
retError.Message = string.Format("An exception occured {0}.", exp.ToString());
return(retError);
}
return(null); // No error
}
return(coins.Error);
}
public static async Task <bool> PutBlockchainInAKnownState(string[] privateKeys)
{
var settings = settingsProvider.GetSettings();
try
{
var clientPrivateKey = new BitcoinSecret(privateKeys[0]);
var hubPrivateKey = new BitcoinSecret(privateKeys[1]);
var clientSelfRevokeKey = new BitcoinSecret(privateKeys[2]);
var hubSelfRevokKey = new BitcoinSecret(privateKeys[3]);
var feeSourcePrivateKey = new BitcoinSecret(new Key(), settings.Network);
var feeDestinationPrivateKey = new BitcoinSecret(new Key(), settings.Network);
uint feeCount = 100;
AssetDefinition usdAsset = null;
foreach (var item in (settings as IBlockchainStateManagerSettings).Assets)
{
if (item.Name == "TestExchangeUSD")
{
usdAsset = item;
break;
}
}
if (!await StartRequiredJobs(true))
{
return(false);
}
var bitcoinRPCCLient = GetRPCClient(settings as IBlockchainStateManagerSettings);
IEnumerable <string> blkIds = null;
for (int i = 0; i < 201; i++)
{
var blkCount = 1;
blkIds = await bitcoinRPCCLient.GenerateBlocksAsync(blkCount);
await blockchainExplorerHelper.WaitUntillBlockchainExplorerHasIndexed
(blockchainExplorerHelper.HasBlockIndexed, blkIds);
}
/*
* for (int i = 0; i < 11; i++)
* {
* var blkCount = 20;
* if (i == 10)
* {
* blkCount = 1;
* }
*
* blkIds = await bitcoinRPCCLient.GenerateBlocksAsync(blkCount);
* await blockchainExplorerHelper.WaitUntillBlockchainExplorerHasIndexed
* (blockchainExplorerHelper.HasBlockIndexed, blkIds);
* }
*/
await bitcoinRPCCLient.ImportPrivKeyAsync(new BitcoinSecret(usdAsset.PrivateKey));
var txId = await bitcoinRPCCLient.SendToAddressAsync(new BitcoinSecret(usdAsset.PrivateKey).GetAddress(),
new Money(100 * Constants.BTCToSathoshiMultiplicationFactor));
await blockchainExplorerHelper.WaitUntillBlockchainExplorerHasIndexed
(blockchainExplorerHelper.HasTransactionIndexed, new string[] { txId.ToString() });
txId = await bitcoinRPCCLient.SendToAddressAsync(feeSourcePrivateKey.GetAddress(),
new Money((feeCount + 1) * Constants.BTCToSathoshiMultiplicationFactor));
blkIds = await bitcoinRPCCLient.GenerateBlocksAsync(1);
await blockchainExplorerHelper.WaitUntillBlockchainExplorerHasIndexed
(blockchainExplorerHelper.HasBlockIndexed, blkIds);
await blockchainExplorerHelper.WaitUntillBlockchainExplorerHasIndexed
(blockchainExplorerHelper.HasTransactionIndexed, new string[] { txId.ToString() });
await blockchainExplorerHelper.WaitUntillBlockchainExplorerHasIndexed
(blockchainExplorerHelper.HasBalanceIndexed, new string[] { txId.ToString() }, feeSourcePrivateKey.GetAddress().ToString());
var error = await feeManager.GenerateFees(feeSourcePrivateKey, feeDestinationPrivateKey, (int)feeCount);
if (error != null)
{
return(false);
}
var signedResp = await GetOffchainSignedSetup(privateKeys);
await transactionBroadcaster.BroadcastTransactionToBlockchain
(signedResp.FullySignedSetupTransaction);
await blockchainExplorerHelper.WaitUntillBlockchainExplorerHasIndexed
(blockchainExplorerHelper.HasTransactionIndexed, new string[] { new Transaction(signedResp.FullySignedSetupTransaction).GetHash().ToString() });
/*
* // Not used
* var unsignedCommitment = await offchainHelper.CreateUnsignedCommitmentTransactions(signedResp.FullySignedSetupTransaction, clientPrivateKey.PubKey,
* hubPrivateKey.PubKey, 40, 65, ASSET, hubSelfRevokKey.PubKey, 10, true);
*/
var clientSignedCommitment = await Helper.SignTransactionWorker(new TransactionSignRequest
{
TransactionToSign = signedResp.UnsignedClientCommitment0,
PrivateKey = clientPrivateKey.ToString()
}, SigHash.All | SigHash.AnyoneCanPay);
var commitmentToLog = clientSignedCommitment;
/*
* var commitmentSpendingResp = await offchainHelper.CreateCommitmentSpendingTransactionForTimeActivatePart(txSendingResult.ToHex(), hubPrivateKey.ToString(),
* clientPrivateKey.PubKey, hubPrivateKey.PubKey, "TestExchangeUSD", hubSelfRevokKey.PubKey, 144, true);
*/
var commitmentSpendingResp = await offchainHelper.CreateCommitmentSpendingTransactionForMultisigPart(clientSignedCommitment, clientPrivateKey.PubKey, hubPrivateKey.PubKey,
ASSET, 75, hubSelfRevokKey.PubKey, 144, true, clientPrivateKey, hubSelfRevokKey);
// Fee is now directly paid from output for bitcoin
// txSendingResult = await AddEnoughFeesToTransaction
// (new Transaction(commitmentSpendingResp.TransactionHex));
var hubSignedCommitment = await Helper.SignTransactionWorker(new TransactionSignRequest
{
TransactionToSign = clientSignedCommitment,
PrivateKey = hubPrivateKey.ToString()
}, SigHash.All | SigHash.AnyoneCanPay);
// var txSendingResult = await AddEnoughFeesToTransaction
// (new Transaction(hubSignedCommitment));
//var txSendingResult = new Transaction(hubSignedCommitment);
//await transactionBroadcaster.BroadcastTransactionToBlockchain
// (txSendingResult.ToHex());
//await blockchainExplorerHelper.WaitUntillBlockchainExplorerHasIndexed
// (blockchainExplorerHelper.HasTransactionIndexed, new string[] { txSendingResult.GetHash().ToString() });
//await blockchainExplorerHelper.WaitUntillBlockchainExplorerHasIndexed
// (blockchainExplorerHelper.HasBalanceIndexedZeroConfirmation, new string[] { txSendingResult.GetHash().ToString() },
// clientPrivateKey.PubKey.WitHash.ScriptPubKey.GetScriptAddress(settings.Network).ToString());
// bool v = await VerifyTransaction(txSendingResult);
var punishmentToLog = commitmentSpendingResp.TransactionHex;
using (StreamWriter writer = new StreamWriter("log.txt"))
{
StringBuilder builder = new StringBuilder();
builder.AppendLine("HubUnsignedCommitment:");
builder.AppendLine(commitmentToLog);
builder.AppendLine("HubSignedCommitment");
builder.AppendLine(hubSignedCommitment);
builder.AppendLine("Punishment:");
builder.AppendLine(punishmentToLog);
await writer.WriteAsync(builder.ToString());
}
return(true);
}
catch (Exception exp)
{
throw exp;
}
}