public string RpcGenerateTransactionRawTx(CommandInfo ci)
{
JObject j = JObject.Parse(ci.Parameter);
Transaction tr = _transactionManager.ConvertFromJson(j);
string hex = tr.To.Value.ToHex();
Module m = null;
if (!_loadedModules.TryGetValue(hex.Replace("0x", ""), out m))
{
if (!_loadedModules.TryGetValue("0x" + hex.Replace("0x", ""), out m))
{
ci.ErrorMsg.Add("Abi Not Loaded.");
return(string.Empty);
}
}
Method method = m.Methods?.FirstOrDefault(mt => mt.Name.Equals(tr.MethodName));
if (method == null)
{
ci.ErrorMsg.Add("Method not found.");
return(string.Empty);
}
JArray p = j["params"] == null ? null : JArray.Parse(j["params"].ToString());
tr.Params = j["params"] == null ? null : method.SerializeParams(p.ToObject <string[]>());
tr.type = TransactionType.ContractTransaction;
tr = tr.AddBlockReference(_rpcAddress);
_transactionManager.SignTransaction(tr);
var rawtx = _transactionManager.ConvertTransactionRawTx(tr);
return(rawtx["rawtx"].ToString());
}
public Transaction SignTransaction(Transaction tx)
{
string addr = tx.From.Value.ToHex();
ECKeyPair kp = _keyStore.GetAccountKeyPair(addr);
if (kp == null)
{
Console.WriteLine("The following account is locked:" + addr);
return(null);
}
MemoryStream ms = new MemoryStream();
Serializer.Serialize(ms, tx);
byte[] b = ms.ToArray();
byte[] toSig = SHA256.Create().ComputeHash(b);
// Sign the hash
ECSigner signer = new ECSigner();
ECSignature signature = signer.Sign(kp, toSig);
// Update the signature
tx.R = signature.R;
tx.S = signature.S;
tx.P = kp.PublicKey.Q.GetEncoded();
return(tx);
}
public JObject ConvertTransactionRawTx(Transaction tx)
{
MemoryStream ms = new MemoryStream();
Serializer.Serialize(ms, tx);
byte[] b = ms.ToArray();
string payload = b.ToHex();
var reqParams = new JObject {
["rawtx"] = payload
};
return(reqParams);
}
public static Transaction AddBlockReference(this Transaction transaction, string rpcAddress)
{
var height = _cachedHeight;
var hash = _cachedHash;
if (height == default(ulong) || (DateTime.Now - _refBlockTime).TotalSeconds > 60)
{
height = ulong.Parse(GetBlkHeight(rpcAddress));
hash = GetBlkHash(rpcAddress, height.ToString());
_cachedHeight = height;
_cachedHash = hash;
_refBlockTime = DateTime.Now;
}
transaction.RefBlockNumber = height;
transaction.RefBlockPrefix = ByteArrayHelpers.FromHexString(hash).Where((b, i) => i < 4).ToArray();
return(transaction);
}
public Transaction ConvertFromJson(JObject j)
{
try
{
Transaction tr = new Transaction();
tr.From = ByteArrayHelpers.FromHexString(j["from"].ToString());
tr.To = ByteArrayHelpers.FromHexString(j["to"].ToString());
tr.IncrementId = j["incr"].ToObject <ulong>();
tr.MethodName = j["method"].ToObject <string>();
return(tr);
}
catch (Exception e)
{
Console.WriteLine("Invalid transaction data.");
Console.WriteLine("Exception message: " + e.Message);
return(null);
}
}
public Transaction CreateTransaction(string elementAt, string genesisAddress, string incrementid,
string methodName, byte[] serializedParams, TransactionType contracttransaction)
{
try
{
Transaction t = new Transaction();
t.From = ByteArrayHelpers.FromHexString(elementAt);
t.To = ByteArrayHelpers.FromHexString(genesisAddress);
t.IncrementId = Convert.ToUInt64(incrementid);
t.MethodName = methodName;
t.Params = serializedParams;
t.type = contracttransaction;
_cmdInfo.Result = true;
return(t);
}
catch (Exception e)
{
_cmdInfo.ErrorMsg.Add("Invalid transaction data: " + e.Message);
return(null);
}
}
public void RpcBroadcastTx(CommandInfo ci)
{
if (!ci.Parameter.Contains("{"))
{
RpcBroadcastWithRawTx(ci);
return;
}
JObject j = JObject.Parse(ci.Parameter);
Transaction tr = _transactionManager.ConvertFromJson(j);
if (tr == null)
{
return;
}
string hex = tr.To.Value.ToHex();
Module m = null;
if (!_loadedModules.TryGetValue(hex.Replace("0x", ""), out m))
{
if (!_loadedModules.TryGetValue("0x" + hex.Replace("0x", ""), out m))
{
ci.ErrorMsg.Add("Abi Not Loaded.");
return;
}
}
Method method = m.Methods?.FirstOrDefault(mt => mt.Name.Equals(tr.MethodName));
if (method == null)
{
ci.ErrorMsg.Add("Method not found.");
return;
}
JArray p = j["params"] == null ? null : JArray.Parse(j["params"].ToString());
tr.Params = j["params"] == null ? null : method.SerializeParams(p.ToObject <string[]>());
tr.type = TransactionType.ContractTransaction;
tr = tr.AddBlockReference(_rpcAddress);
_transactionManager.SignTransaction(tr);
var rawtx = _transactionManager.ConvertTransactionRawTx(tr);
var req = RpcRequestManager.CreateRequest(rawtx, ci.Category, 1);
string returnCode = string.Empty;
long timeSpan = 0;
string resp = _requestManager.PostRequest(req.ToString(), out returnCode, out timeSpan);
ci.TimeSpan = timeSpan;
if (!CheckResponse(ci, returnCode, resp))
{
return;
}
JObject rObj = JObject.Parse(resp);
var rj = rObj["result"];
string hash = rj["hash"] == null ? rj["error"].ToString() :rj["hash"].ToString();
string res = rj["hash"] == null ? "error" : "txId";
var jobj = new JObject
{
[res] = hash
};
ci.InfoMsg.Add(jobj.ToString());
ci.Result = true;
}
public void RpcDeployContract(CommandInfo ci)
{
if (!ci.CheckParameterValid(3))
{
return;
}
string filename = ci.Parameter.Split(" ")[0];
// Read sc bytes
SmartContractReader screader = new SmartContractReader();
byte[] sc = screader.Read(filename);
string hex = sc.ToHex();
if (!_loadedModules.TryGetValue(_genesisAddress, out var m))
{
ci.ErrorMsg.Add("ABI not loaded.");
return;
}
Method meth = m.Methods.FirstOrDefault(mt => mt.Name.Equals("DeploySmartContract"));
if (meth == null)
{
ci.ErrorMsg.Add("Method not Found.");
return;
}
byte[] serializedParams = meth.SerializeParams(new List <string> {
"1", hex
});
_transactionManager.SetCmdInfo(ci);
Transaction tx = _transactionManager.CreateTransaction(ci.Parameter.Split(" ")[2], _genesisAddress,
ci.Parameter.Split(" ")[1],
"DeploySmartContract", serializedParams, TransactionType.ContractTransaction);
tx = tx.AddBlockReference(_rpcAddress);
if (tx == null)
{
return;
}
tx = _transactionManager.SignTransaction(tx);
if (tx == null)
{
return;
}
var rawtx = _transactionManager.ConvertTransactionRawTx(tx);
var req = RpcRequestManager.CreateRequest(rawtx, "broadcast_tx", 1);
string returnCode = string.Empty;
long timeSpan = 0;
string resp = _requestManager.PostRequest(req.ToString(), out returnCode, out timeSpan);
ci.TimeSpan = timeSpan;
if (!CheckResponse(ci, returnCode, resp))
{
return;
}
JObject jObj = JObject.Parse(resp);
var j = jObj["result"];
if (j["error"] != null)
{
ci.ErrorMsg.Add(j["error"].ToString());
ci.Result = false;
return;
}
string hash = j["hash"] == null ? j["error"].ToString() :j["hash"].ToString();
string res = j["hash"] == null ? "error" : "txId";
var jobj = new JObject
{
[res] = hash
};
ci.InfoMsg.Add(jobj.ToString());
ci.Result = true;
}
