public async Task Erc20ServiceUnitTest_SignAndCommitTransaction()
{
string from = TestConstants.PW_ADDRESS;
Erc20Transaction ethTransaction = new Erc20Transaction()
{
FromAddress = from,
GasAmount = 21000,
GasPrice = 30000000000,
ToAddress = _contractAddress,
TokenAddress = _contractAddress,
TokenAmount = 30000000000
};
string transactionHex = await _erc20Service.GetTransferTransactionRaw(ethTransaction);
string signedTransaction = SignRawTransaction(transactionHex, _privateKey);
string transactionHash = await _erc20Service.SubmitSignedTransaction(from, signedTransaction);
Nethereum.Signer.Transaction transaction = new Nethereum.Signer.Transaction(signedTransaction.HexToByteArray());
_client.Verify(x => x.SendRequestAsync <string>(It.IsAny <Nethereum.JsonRpc.Client.RpcRequest>(), null), Times.Once);
Assert.AreEqual(from, transaction.Key.GetPublicAddress());
Assert.AreEqual(_nonceCalc._nonceStorage[from].Value, new HexBigInteger(transaction.Nonce.ToHex()));
Assert.AreEqual(ethTransaction.GasAmount, new HexBigInteger(transaction.GasLimit.ToHex()));
Assert.AreEqual(new HexBigInteger(0).Value, new HexBigInteger(transaction.Value.ToHex()));
Assert.AreEqual(ethTransaction.GasPrice, new HexBigInteger(transaction.GasPrice.ToHex()));
Assert.AreEqual(ethTransaction.ToAddress.ToLower(), transaction.ReceiveAddress.ToHex().EnsureHexPrefix());
}
public async Task <string> SignAndSendRawTransaction(Nethereum.Signer.Transaction transaction)
{
transaction.Sign(new EthECKey(_sender_private_key.HexToByteArray(), isPrivate: true));
string signed_transaction_data = transaction.GetRLPEncoded().ToHex();
string tx_hash = await _web3geth.Eth.Transactions.SendRawTransaction.SendRequestAsync(signed_transaction_data);
return(tx_hash);
}
private string SignRawTransaction(string trHex, string privateKey)
{
var transaction = new Nethereum.Signer.Transaction(trHex.HexToByteArray());
var secret = new EthECKey(privateKey);
transaction.Sign(secret);
string signedHex = transaction.GetRLPEncoded().ToHex();
return(signedHex);
}
private Nethereum.Signer.Transaction ConvertToTx(RelayResponse response)
{
var tx = new Nethereum.Signer.Transaction(
response.To,
response.Value.Value,
response.Nonce.Value,
response.GasPrice.Value,
response.Gas.Value,
response.Input);
tx.SetSignature(new EthECDSASignature(
new Org.BouncyCastle.Math.BigInteger(response.R.RemoveHexPrefix(), 16),
new Org.BouncyCastle.Math.BigInteger(response.S.RemoveHexPrefix(), 16),
response.V.HexToByteArray()));
return(tx);
}
public async Task <string> SendTransactionAsync <T>(T transaction) where T : TransactionInput
{
var ethSendTransaction = new EthSendRawTransaction(Client);
var nonce = await GetNonceAsync(transaction);
var value = transaction.Value?.Value ?? 0;
var gasPrice = await EstimateGasPrice();
var gasValue = transaction.Gas?.Value ?? Transaction.DEFAULT_GAS_LIMIT;
var tr = new Transaction(transaction.To, value, nonce, gasPrice, gasValue, transaction.Data);
var hex = tr.GetRLPEncoded().ToHex();
var response = await _signatureApi.SignTransaction(new SignRequest { From = transaction.From, Transaction = hex });
return(await ethSendTransaction.SendRequestAsync(response.SignedTransaction.EnsureHexPrefix()).ConfigureAwait(false));
}
public Task <bool> IsValidTransactionHex(string transactionHex)
{
if (string.IsNullOrEmpty(transactionHex))
{
return(Task.FromResult(false));
}
try
{
var transaction = new Nethereum.Signer.Transaction(transactionHex.HexToByteArray());
}
catch (Exception e)
{
return(Task.FromResult(false));
}
return(Task.FromResult(true));
}
public async Task <string> BuildTransactionAsync(
string from,
string to,
BigInteger amount,
BigInteger gasAmount,
BigInteger gasPrice)
{
var transaction = new NethereumTransaction
(
to: to,
amount: amount,
nonce: await GetNextNonceAsync(from),
gasPrice: gasPrice,
gasLimit: gasAmount,
data: null
);
return(transaction
.GetRLPEncoded()
.ToHex(prefix: true));
}
public string SignTransaction(
string transactionContext,
string privateKey)
{
using (var eventHolder = _telemetryClient.StartEvent("TransactionSigned"))
{
try
{
var transactionBytes = transactionContext.HexToByteArray();
var transactionDto = MessagePackSerializer.Deserialize <UnsignedTransaction>(transactionBytes);
var transaction = new NethereumTransaction
(
to: transactionDto.To,
amount: transactionDto.Amount,
nonce: transactionDto.Nonce,
gasPrice: transactionDto.GasPrice,
gasLimit: transactionDto.GasAmount,
data: null
);
transaction.Sign
(
key: new EthECKey(privateKey)
);
return(transaction
.GetRLPEncoded()
.ToHex(prefix: true));
}
catch (Exception)
{
eventHolder.TrackFailure("TransactionSigningFailed");
throw;
}
}
}
public async Task Erc20ServiceUnitTest_TestGetTransaction()
{
string from = TestConstants.PW_ADDRESS;
Erc20Transaction ethTransaction = new Erc20Transaction()
{
FromAddress = from,
GasAmount = 21000,
GasPrice = 30000000000,
ToAddress = _contractAddress,
TokenAddress = _contractAddress,
TokenAmount = 30000000000
};
string transactionHex = await _erc20Service.GetTransferTransactionRaw(ethTransaction);
Nethereum.Signer.Transaction transaction = new Nethereum.Signer.Transaction(transactionHex.HexToByteArray());
Assert.AreEqual(_nonceCalc._nonceStorage[from].Value, new HexBigInteger(transaction.Nonce.ToHex()));
Assert.AreEqual(ethTransaction.GasAmount, new HexBigInteger(transaction.GasLimit.ToHex()));
Assert.AreEqual(new HexBigInteger(0).Value, new HexBigInteger(transaction.Value.ToHex()));
Assert.AreEqual(ethTransaction.GasPrice, new HexBigInteger(transaction.GasPrice.ToHex()));
Assert.AreEqual(ethTransaction.ToAddress.ToLower(), transaction.ReceiveAddress.ToHex().EnsureHexPrefix());
Assert.IsNotNull(transaction.Data.ToHex().EnsureHexPrefix());
}
/// <summary>
/// Gets the signed transaction data from the Trezor wallet.
/// </summary>
/// <param name="transaction"> The transaction to sign. </param>
/// <param name="path"> The path of the address to sign the transaction with. </param>
/// <param name="onSignatureRequestSent"> Action to call once the signature request has been sent. </param>
/// <returns> Task returning the SignedTransactionDataHolder instance. </returns>
protected override async Task <SignedTransactionDataHolder> GetSignedTransactionData(Transaction transaction, string path, Action onSignatureRequestSent)
{
var trezorManager = TrezorConnector.GetWindowsConnectedTrezor(GetSignedTransactionDataEnterPin);
if (trezorManager == null)
{
return(null);
}
var signedTransactionResponse = (EthereumTxRequest)null;
var signedTransactionRequest = new EthereumSignTx
{
Nonce = transaction.Nonce,
AddressNs = KeyPath.Parse(path).Indexes,
GasPrice = transaction.GasPrice,
GasLimit = transaction.GasLimit,
To = transaction.ReceiveAddress,
Value = transaction.Value,
DataInitialChunk = transaction.Data,
DataLength = (uint)transaction.Data.Length,
ChainId = (uint)ethereumNetworkSettings.networkType
};
while (true)
{
try
{
signedTransactionResponse = await trezorManager.SendMessageAsync <EthereumTxRequest, EthereumSignTx>(signedTransactionRequest, onSignatureRequestSent)
.ConfigureAwait(false);
break;
}
catch (FailureException <Failure> )
{
if (forceCancel)
{
forceCancel = false;
break;
}
if (trezorManager.PinRequest.HasValue && trezorManager.PinRequest == false)
{
break;
}
}
}
if (signedTransactionResponse == null)
{
return(new SignedTransactionDataHolder());
}
return(new SignedTransactionDataHolder
{
signed = true,
v = signedTransactionResponse.SignatureV,
r = signedTransactionResponse.SignatureR,
s = signedTransactionResponse.SignatureS
});
}
public async Task <string> CreateAsync(
string task_uuid,
string flight_id, string pid, string ufid,
string flight_code, string fs_flight_code,
string departure_utc_offset_hours, string arrival_utc_offset_hours,
string departure_airport, string arrival_airport,
string scheduled_departure_date,
string scheduled_departure_date_time, string scheduled_departure_date_time_local,
string scheduled_arrival_date_time, string scheduled_arrival_date_time_local,
BigInteger?nonce = null)
{
_logger.LogDebug("FDBC_Nethereum.SmartContracts.Flight.CreateAsync({task_uuid})", task_uuid);
string sender_address = _settings.default_sender_address;
string contract_abi = _settings.flight_contract_abi;
string contract_bytecode = _settings.flight_contract_bytecode;
//====================================
// deploy contract
var from = sender_address;
var gasLimit = new HexBigInteger(_settings.flight_contract_deploy_gas);
var wei = new HexBigInteger(0);
object[] values = new object[] {
task_uuid,
flight_id,
pid,
ufid,
flight_code,
fs_flight_code,
departure_utc_offset_hours,
arrival_utc_offset_hours,
departure_airport,
arrival_airport,
scheduled_departure_date,
scheduled_departure_date_time,
scheduled_departure_date_time_local,
scheduled_arrival_date_time,
scheduled_arrival_date_time_local
};
string tx_hash = "";
if (nonce != null)
{
string data = web3geth.Eth.DeployContract.GetData(contract_bytecode, contract_abi, values);
Nethereum.Signer.Transaction signable_transcation = new Nethereum.Signer.Transaction(
to: null, amount: wei, nonce: (BigInteger)nonce,
gasPrice: Nethereum.Signer.Transaction.DEFAULT_GAS_PRICE,
gasLimit: gasLimit.Value,
data: data
);
tx_hash = await _blockchain_manager.SignAndSendRawTransaction(signable_transcation);
//_logger.LogDebug("SignAndSendRawTransaction(PrivateKey = {sender_private_key}, Signature = {@Signature}) => tx=hash = {tx_hash}", _blockchain_manager.sender_private_key, signable_transcation.Signature, tx_hash);
}
else
{
tx_hash = await web3geth.Eth.DeployContract.SendRequestAsync(
abi : contract_abi,
contractByteCode : contract_bytecode,
from : from,
gas : gasLimit,
value : wei,
values : values);
}
return(tx_hash);
}
public async Task <string> SetFlightAllAttributes(
string contract_address,
string task_uuid,
string status,
string actual_departure_date_time,
string actual_departure_date_time_local,
string actual_arrival_date_time,
string actual_arrival_date_time_local,
string cancel_date_time,
string cancel_date_time_local,
string deleted,
string flight_status_source,
string flight_status_fed,
string delay_notification_date_time,
BigInteger?nonce = null
)
{
// SmartContract function doesn't take null as input for string
status = status ?? "";
actual_departure_date_time = actual_departure_date_time ?? "";
actual_departure_date_time_local = actual_departure_date_time_local ?? "";
actual_arrival_date_time = actual_arrival_date_time ?? "";
actual_arrival_date_time_local = actual_arrival_date_time_local ?? "";
cancel_date_time = cancel_date_time ?? "";
cancel_date_time_local = cancel_date_time_local ?? "";
deleted = deleted ?? "";
flight_status_source = flight_status_source ?? "";
flight_status_fed = flight_status_fed ?? "";
delay_notification_date_time = delay_notification_date_time ?? "";
// Web3
string sender_address = _settings.default_sender_address;
string contract_abi = _settings.flight_contract_abi;
Contract contract = web3geth.Eth.GetContract(contract_abi, contract_address);
string task_uuid_sha3 = $"0x{_web3geth.Sha3(task_uuid)}";
byte[] task_uuid_sha3_bytes32 = task_uuid_sha3.HexToByteArray();
Function set_function = contract.GetFunction("set_all");
var from = sender_address;
var gasLimit = new HexBigInteger(_settings.flight_contract_set_all_gas);
var wei = new HexBigInteger(0);
object[] values = new object[] {
task_uuid,
status,
actual_departure_date_time,
actual_departure_date_time_local,
actual_arrival_date_time,
actual_arrival_date_time_local,
cancel_date_time,
cancel_date_time_local,
deleted,
flight_status_source,
flight_status_fed,
delay_notification_date_time
};
string tx_hash = "";
if (nonce != null)
{
string data = set_function.GetData(values);
Nethereum.Signer.Transaction signable_transcation = new Nethereum.Signer.Transaction(
to: contract_address, amount: wei, nonce: (BigInteger)nonce,
gasPrice: Nethereum.Signer.Transaction.DEFAULT_GAS_PRICE,
gasLimit: gasLimit.Value,
data: data
);
tx_hash = await _blockchain_manager.SignAndSendRawTransaction(signable_transcation);
}
else
{
tx_hash = await set_function.SendTransactionAsync(
from : from, gas : gasLimit, value : wei,
functionInput : values
);
}
return(tx_hash);
}
/// <summary>
/// Signs a transaction using this IWallet.
/// </summary>
/// <typeparam name="T"> The type of the popup to display the transaction confirmation for. </typeparam>
/// <param name="onTransactionSigned"> The action to call if the transaction is confirmed and signed. </param>
/// <param name="gasLimit"> The gas limit to use with the transaction. </param>
/// <param name="gasPrice"> The gas price to use with the transaction. </param>
/// <param name="value"> The amount of ether in wei being sent along with the transaction. </param>
/// <param name="addressFrom"> The address of the wallet signing the transaction. </param>
/// <param name="addressTo"> The address the transaction is being sent to. </param>
/// <param name="data"> The data sent along with the transaction. </param>
/// <param name="path"> The path of the wallet to sign the transaction with. </param>
/// <param name="displayInput"> The display input that goes along with the transaction request. </param>
public void SignTransaction <T>(
Action <TransactionSignedUnityRequest> onTransactionSigned,
BigInteger gasLimit,
BigInteger gasPrice,
BigInteger value,
string addressFrom,
string addressTo,
string data,
string path,
params object[] displayInput) where T : ConfirmTransactionPopupBase <T>
{
if (signingTransaction)
{
return;
}
signingTransaction = true;
TransactionUtils.GetAddressTransactionCount(addressFrom).OnSuccess(async txCount =>
{
var currentPopupType = popupManager.ActivePopupType;
var transaction = new Transaction(
txCount.ToBytesForRLPEncoding(),
gasPrice.ToBytesForRLPEncoding(),
gasLimit.ToBytesForRLPEncoding(),
addressTo.HexToByteArray(),
value.ToBytesForRLPEncoding(),
data.HexToByteArray(),
new byte[] { 0 },
new byte[] { 0 },
(byte)ethereumNetworkSettings.networkType);
var signedTransactionData = await GetSignedTransactionData(
transaction,
path,
() => MainThreadExecutor.QueueAction(() => popupManager.GetPopup <T>(true)?.SetConfirmationValues(null, gasLimit, gasPrice, displayInput))).ConfigureAwait(false);
signingTransaction = false;
if (signedTransactionData == null)
{
return;
}
else if (!signedTransactionData.signed)
{
if (currentPopupType != popupManager.ActivePopupType)
{
MainThreadExecutor.QueueAction(() => popupManager.CloseActivePopup());
}
return;
}
var transactionChainId = new TransactionChainId(
transaction.Nonce,
transaction.GasPrice,
transaction.GasLimit,
transaction.ReceiveAddress,
transaction.Value,
transaction.Data,
new byte[] { (byte)ethereumNetworkSettings.networkType },
signedTransactionData.r,
signedTransactionData.s,
new byte[] { (byte)signedTransactionData.v });
MainThreadExecutor.QueueAction(() =>
{
onTransactionSigned?.Invoke(new TransactionSignedUnityRequest(transactionChainId.GetRLPEncoded().ToHex(), ethereumNetworkManager.CurrentNetwork.NetworkUrl));
popupManager.CloseAllPopups();
});
});
}
/// <summary> /// Abstract method used for getting the signed transaction data from the hardware wallet. /// </summary> /// <param name="transaction"> The Transaction object containing all the data to sign. </param> /// <param name="path"> The path of the address signing the transaction. </param> /// <param name="onSignatureRequestSent"> Action to call once the request for a transaction signature has been sent. </param> /// <returns> Task returning the SignedTransactionDataHolder instance. </returns> protected abstract Task <SignedTransactionDataHolder> GetSignedTransactionData(Transaction transaction, string path, Action onSignatureRequestSent);
/// <summary>
/// Gets the signed transaction data from the Ledger wallet.
/// </summary>
/// <param name="transaction"> The transaction to sign. </param>
/// <param name="path"> The path of the address to sign the transaction with. </param>
/// <param name="onSignatureRequestSent"> Action to call once the signature request has been sent. </param>
/// <returns> Task returning the SignedTransactionDataHolder instance. </returns>
protected override async Task <SignedTransactionDataHolder> GetSignedTransactionData(Transaction transaction, string path, Action onSignatureRequestSent)
{
var ledgerManager = LedgerConnector.GetWindowsConnectedLedger();
var address = ledgerManager == null
? null
: (await ledgerManager.GetPublicKeyResponse(Wallet.ELECTRUM_LEDGER_PATH.Replace("x", "0"), false, false).ConfigureAwait(false))?.Address;
// Don't sign transaction if app is not Ethereum, or if the first address doesn't match the first address of the opened Ledger wallet.
if (string.IsNullOrEmpty(address) || !address.EqualsIgnoreCase(addresses[1][0]))
{
return(null);
}
var addressIndex = path.Count(c => c == '/') - 1;
var derivationData = Helpers.GetDerivationPathData(path);
var request = new EthereumAppSignTransactionRequest(derivationData.Concat(transaction.GetRLPEncoded()).ToArray());
onSignatureRequestSent?.Invoke();
var response = await ledgerManager.SendRequestAsync <EthereumAppSignTransactionResponse, EthereumAppSignTransactionRequest>(request).ConfigureAwait(false);
if (!response.IsSuccess)
{
return(new SignedTransactionDataHolder());
}
return(new SignedTransactionDataHolder {
signed = true, v = response.SignatureV, r = response.SignatureR, s = response.SignatureS
});
}