private string SendTransaction(JObject opts)
{
var from = opts["from"]?.ToString().HexToBytes().ToUInt160() ??
_systemContractReader.NodeAddress();
var to = opts["to"]?.ToString().HexToBytes().ToUInt160() ??
throw new Exception($"\"to\" {opts["to"]} is not valid");
var value = Money.Parse(opts["amount"]?.ToString() ??
throw new Exception($"\"amount\" {opts["amount"]} is not valid")
);
var invocation = opts["data"]?.ToString().HexToBytes();
var nonce = _transactionPool.GetNextNonceForAddress(from);
var tx = new Transaction
{
To = to,
From = from,
GasPrice = (ulong)_stateManager.CurrentSnapshot.NetworkGasPrice,
/* TODO: "calculate gas limit for input size" */
GasLimit = 10000000,
Nonce = nonce,
Value = value.ToUInt256(),
Invocation = ByteString.CopyFrom(invocation)
};
return(AddTxToPool(tx));
}
public static TransactionChainId GetEthTx(this Transaction t, Signature?s, bool useNewId)
{
var nonce = t.Nonce == 0
? Array.Empty <byte>()
: new BigInteger(t.Nonce).ToByteArray().Reverse().ToArray().TrimLeadingZeros();
var sig = s is null?Array.Empty <byte>() : s.Encode().AsSpan();
var ethTx = new Nethereum.Signer.TransactionChainId(
nonce,
new BigInteger(t.GasPrice).ToByteArray().Reverse().ToArray().TrimLeadingZeros(),
new BigInteger(t.GasLimit).ToByteArray().Reverse().ToArray().TrimLeadingZeros(),
t.To.ToBytes(), // this may be empty, same as passing null
t.Value.ToBytes(false, true),
t.Invocation.ToArray(),
new BigInteger(ChainId(useNewId)).ToByteArray().Reverse().ToArray().TrimLeadingZeros(),
sig.IsEmpty ? Array.Empty <byte>() : sig.Slice(0, 32).ToArray().TrimLeadingZeros(),
sig.IsEmpty ? Array.Empty <byte>() : sig.Slice(32, 32).ToArray().TrimLeadingZeros(),
sig.IsEmpty ? Array.Empty <byte>() : sig.Slice(64, sig.Length - 64).ToArray().TrimLeadingZeros()
);
return(ethTx);
}
private string MakeDummyTx(bool useNewCainId)
{
var tx = new Transaction
{
From = "0x6bc32575acb8754886dc283c2c8ac54b1bd93195".HexToBytes().ToUInt160(),
To = "0x71B293C2593d4Ff9b534b2e691f56c1D18c95a17".HexToBytes().ToUInt160(),
Value = Money.Parse("100").ToUInt256(),
Nonce = 0,
GasPrice = 5000000000,
GasLimit = 4500000
};
var rlp = tx.Rlp(useNewCainId);
var keyPair = new EcdsaKeyPair("0xd95d6db65f3e2223703c5d8e205d98e3e6b470f067b0f94f6c6bf73d4301ce48"
.HexToBytes().ToPrivateKey());
var receipt = _transactionSigner.Sign(tx, keyPair, useNewCainId);
var s = receipt.Signature;
var rawTx = tx.RlpWithSignature(s, useNewCainId);
return(rawTx.ToHex());
}
public static UInt256 FullHash(this Transaction t, Signature s, bool useNewId)
{
return(t.RlpWithSignature(s, useNewId).Keccak());
}
public static UInt256 RawHash(this Transaction t, bool useNewId)
{
return(t.Rlp(useNewId).Keccak());
}
public static IEnumerable <byte> RlpWithSignature(this Transaction t, Signature s, bool useNewId)
{
var ethTx = t.GetEthTx(s, useNewId);
return(ethTx.GetRLPEncoded());
}
public static IEnumerable <byte> Rlp(this Transaction t, bool useNewId)
{
var ethTx = t.GetEthTx(null, useNewId);
return(ethTx.GetRLPEncodedRaw());
}