private void ProcessInvokeWithWallet(JObject result, Cosigners cosigners = null)
{
Transaction tx = null;
if (wallet != null && cosigners != null)
{
UInt160[] accounts = wallet.GetAccounts().Where(p => !p.Lock && !p.WatchOnly).Select(p => p.ScriptHash).ToArray();
Cosigner[] witnessCosigners = cosigners.GetCosigners().Where(p => accounts.Contains(p.Account)).ToArray();
if (witnessCosigners.Count() > 0)
{
tx = wallet.MakeTransaction(result["script"].AsString().HexToBytes(), null, witnessCosigners);
ContractParametersContext context = new ContractParametersContext(tx);
wallet.Sign(context);
if (context.Completed)
{
tx.Witnesses = context.GetWitnesses();
}
else
{
tx = null;
}
}
}
result["tx"] = tx?.ToArray().ToHexString();
}
public UInt160[] GetScriptHashesForVerifying(Snapshot snapshot)
{
var hashes = new HashSet <UInt160> {
Sender
};
hashes.UnionWith(Cosigners.Select(p => p.Account));
return(hashes.OrderBy(p => p).ToArray());
}
private JObject InvokeScript(JArray _params)
{
byte[] script = _params[0].AsString().HexToBytes();
Cosigners cosigners = _params.Count >= 2 ? new Cosigners(((JArray)_params[1]).Select(u => new Cosigner()
{
Account = UInt160.Parse(u["account"].AsString()), Scopes = (WitnessScope)Enum.Parse(typeof(WitnessScope), u["scopes"].AsString())
}).ToArray()) : null;
return(GetInvokeResult(script, cosigners));
}
public Transaction Unwrap()
{
return(new Transaction
{
Version = Version,
Nonce = Nonce,
Sender = Sender,
SystemFee = SystemFee,
NetworkFee = NetworkFee,
ValidUntilBlock = ValidUntilBlock,
Attributes = Attributes.Select(p => p.Unwrap()).ToArray(),
Cosigners = Cosigners.Select(p => p.Unwrap()).ToArray(),
Script = Script,
Witnesses = Witnesses.Select(p => p.Unwrap()).ToArray()
});
}
public JObject ToJson()
{
JObject json = new JObject();
json["hash"] = Hash.ToString();
json["size"] = Size;
json["version"] = Version;
json["nonce"] = Nonce;
json["sender"] = Sender.ToAddress();
json["sys_fee"] = SystemFee.ToString();
json["net_fee"] = NetworkFee.ToString();
json["valid_until_block"] = ValidUntilBlock;
json["attributes"] = Attributes.Select(p => p.ToJson()).ToArray();
json["cosigners"] = Cosigners.Select(p => p.ToJson()).ToArray();
json["script"] = Convert.ToBase64String(Script);
json["witnesses"] = Witnesses.Select(p => p.ToJson()).ToArray();
return(json);
}
public JObject ToJson()
{
JObject json = new JObject();
json["hash"] = Hash.ToString();
json["size"] = Size;
json["version"] = Version;
json["nonce"] = Nonce;
json["sender"] = Sender.ToAddress();
json["sys_fee"] = new BigDecimal(SystemFee, NativeContract.GAS.Decimals).ToString();
json["net_fee"] = new BigDecimal(NetworkFee, NativeContract.GAS.Decimals).ToString();
json["valid_until_block"] = ValidUntilBlock;
json["attributes"] = Attributes.Select(p => p.ToJson()).ToArray();
json["cosigners"] = Cosigners.Select(p => p.ToJson()).ToArray();
json["script"] = Script.ToHexString();
json["witnesses"] = Witnesses.Select(p => p.ToJson()).ToArray();
return(json);
}
private JObject InvokeFunction(JArray _params)
{
UInt160 script_hash = UInt160.Parse(_params[0].AsString());
string operation = _params[1].AsString();
ContractParameter[] args = _params.Count >= 3 ? ((JArray)_params[2]).Select(p => ContractParameter.FromJson(p)).ToArray() : new ContractParameter[0];
Cosigners cosigners = _params.Count >= 4 ? new Cosigners(((JArray)_params[3]).Select(u => new Cosigner()
{
Account = UInt160.Parse(u["account"].AsString()), Scopes = (WitnessScope)Enum.Parse(typeof(WitnessScope), u["scopes"].AsString())
}).ToArray()) : null;
byte[] script;
using (ScriptBuilder sb = new ScriptBuilder())
{
script = sb.EmitAppCall(script_hash, operation, args).ToArray();
}
return(GetInvokeResult(script, cosigners));
}
private JObject GetInvokeResult(byte[] script, Cosigners cosigners = null)
{
using ApplicationEngine engine = ApplicationEngine.Run(script, cosigners, gas: settings.MaxGasInvoke);
JObject json = new JObject();
json["script"] = script.ToHexString();
json["state"] = engine.State;
json["gasconsumed"] = engine.GasConsumed.ToString();
try
{
json["stack"] = new JArray(engine.ResultStack.Select(p => p.ToJson()));
}
catch (InvalidOperationException)
{
json["stack"] = "error: recursive reference";
}
ProcessInvokeWithWallet(json, cosigners);
return(json);
}
public void DeserializeUnsigned(BinaryReader reader)
{
Version = reader.ReadByte();
if (Version > 0)
{
throw new FormatException();
}
Nonce = reader.ReadUInt32();
Sender = reader.ReadSerializable <UInt160>();
SystemFee = reader.ReadInt64();
if (SystemFee < 0)
{
throw new FormatException();
}
if (SystemFee % NativeContract.GAS.Factor != 0)
{
throw new FormatException();
}
NetworkFee = reader.ReadInt64();
if (NetworkFee < 0)
{
throw new FormatException();
}
if (SystemFee + NetworkFee < SystemFee)
{
throw new FormatException();
}
ValidUntilBlock = reader.ReadUInt32();
Attributes = reader.ReadSerializableArray <TransactionAttribute>(MaxTransactionAttributes);
Cosigners = reader.ReadSerializableArray <Cosigner>(MaxCosigners);
if (Cosigners.Select(u => u.Account).Distinct().Count() != Cosigners.Length)
{
throw new FormatException();
}
Script = reader.ReadVarBytes(ushort.MaxValue);
if (Script.Length == 0)
{
throw new FormatException();
}
}
/// <summary> /// Checks if an account is cosignatory of the multisig account. /// </summary> /// <param name="account">The account.</param> /// <returns><c>true</c> if the specified account has cosigners; otherwise, <c>false</c>.</returns> public bool HasCosigner(AccountInfo account) => Cosigners.Contains(account);