/**
* Convert transaction to Protobuf format.
* </br><b>Note:</b> Transaction should be [sign]{@link Transaction#signTransaction} before converting.
*
* @return {Buffer} Transaction data in Protobuf format
*
* @example
* var acc = Account.NewAccount();
*
* var tx = new Transaction({
* chainID: 1,
* from: acc,
* to: "n1SAeQRVn33bamxN4ehWUT7JGdxipwn8b17",
* value: 10,
* nonce: 12,
* gasPrice: 1000000,
* gasLimit: 2000000
* });
* tx.signTransaction();
* var txHash = tx.toProto();
* // Uint8Array(127)
*/
public byte[] ToProto()
{
if (Sign == null)
{
throw new Exception(_signErrorMessage);
}
var data = new Corepb.Data
{
Payload = ByteString.CopyFrom(_payLoadData),
Type = Enum.GetName(typeof(TxPayload), _payLoadType).ToLower()
};
var txData = new Corepb.Transaction
{
Hash = ByteString.CopyFrom(Hash),
From = ByteString.CopyFrom(_fromAccount.GetAddress()),
To = ByteString.CopyFrom(_toAccount.GetAddress()),
Value = ByteString.CopyFrom(CryptoUtils.PadToBigEndian(_value.ToString("x"), 128)),
Nonce = _nonce,
Timestamp = _timestamp,
Data = data,
ChainId = _chainId,
GasPrice = ByteString.CopyFrom(CryptoUtils.PadToBigEndian(_gasPrice.ToString("x"), 128)),
GasLimit = ByteString.CopyFrom(CryptoUtils.PadToBigEndian(_gasLimit.ToString("x"), 128)),
Alg = Alg,
Sign = ByteString.CopyFrom(Sign)
};
var txBuffer = txData.ToByteArray();
return(txBuffer);
}
public NebTransaction(uint chainId, NebAccount fromAccount, NebAccount toAccount, string value, ulong nonce,
string gasPrice, string gasLimit, NebContract contract = null)
{
m_chainId = chainId;
m_fromAccount = fromAccount;
m_toAccount = toAccount;
m_value = BigInteger.Parse(value);
m_nonce = nonce;
#if DEBUG
m_timestamp = 0;
#else
m_timestamp = GetTimeStamp(DateTime.Now);
#endif
m_gasPrice = BigInteger.Parse(gasPrice);
m_gasLimit = BigInteger.Parse(gasLimit);
m_contract = contract ?? NebContract.DefaultContract;
if (m_gasPrice <= 0)
{
m_gasPrice = new BigInteger(1000000);
}
if (m_gasLimit <= 0)
{
m_gasLimit = new BigInteger(20000);
}
m_data = new Corepb.Data();
switch (m_contract.Content)
{
case NebContract.BinaryContent _:
m_data.Type = "binary";
m_data.Payload = ByteString.CopyFrom(((NebContract.BinaryContent)m_contract.Content).Data);
break;
case NebContract.DeployContent _:
m_data.Type = "deploy";
m_data.Payload =
ByteString.CopyFromUtf8(JsonConvert.SerializeObject(m_contract.Content, JsonSettings));
break;
case NebContract.CallContent _:
m_data.Type = "call";
m_data.Payload =
ByteString.CopyFromUtf8(JsonConvert.SerializeObject(m_contract.Content, JsonSettings));
break;
default:
throw new Exception();
}
}
/**
* Convert transaction to hash by SHA3-256 algorithm.
*
* @return {Hash} hash of Transaction.
*
* @example
* var acc = Account.NewAccount();
*
* var tx = new Transaction({
* chainID: 1,
* from: acc,
* to: "n1SAeQRVn33bamxN4ehWUT7JGdxipwn8b17",
* value: 10,
* nonce: 12,
* gasPrice: 1000000,
* gasLimit: 2000000
* });
* var txHash = tx.hashTransaction();
* //Uint8Array(32) [211, 213, 102, 103, 23, 231, 246, 141, 20, 202, 210, 25, 92, 142, 162, 242, 232, 95, 44, 239, 45, 57, 241, 61, 34, 2, 213, 160, 17, 207, 75, 40]
*/
public byte[] HashTransaction()
{
var data = new Corepb.Data
{
Payload = ByteString.CopyFrom(_payLoadData),
Type = Enum.GetName(typeof(TxPayload), _payLoadType).ToLower()
};
var dataBuffer = data.ToByteArray();
var hash = Sha3Util.Get256Hash(ByteUtil.Merge(
_fromAccount.GetAddress(),
_toAccount.GetAddress(),
CryptoUtils.PadToBigEndian(_value.ToString("x"), 128),
CryptoUtils.PadToBigEndian(_nonce.ToString("x"), 64),
CryptoUtils.PadToBigEndian(_timestamp.ToString("x"), 64),
dataBuffer,
CryptoUtils.PadToBigEndian(_chainId.ToString("x"), 32),
CryptoUtils.PadToBigEndian(_gasPrice.ToString("x"), 128),
CryptoUtils.PadToBigEndian(_gasLimit.ToString("x"), 128))
);
return(hash);
}
