public string GetData(string contractByteCode, string abi, params object[] values)
{
var contract = _abiDeserialiser.DeserialiseContract(abi);
return(_constructorCallEncoder.EncodeRequest(contractByteCode,
contract.Constructor.InputParameters, values));
}
private TransactionInput BuildTransaction(string abi, string contractByteCode, string from, HexBigInteger gas, object[] values)
{
var contract = abiDeserialiser.DeserialiseContract(abi);
var encodedData = constructorCallEncoder.EncodeRequest(contractByteCode,
contract.Constructor.InputParameters, values);
var transaction = new TransactionInput(encodedData, gas, from);
return(transaction);
}
public Task <string> SendRequestAsync(string abi, string contractByteCode, string from, HexBigInteger gas,
params object[] values)
{
var contract = abiDeserialiser.DeserialiseContract(abi);
var encodedData = constructorCallEncoder.EncodeRequest(contractByteCode,
contract.Constructor.InputParameters, values);
return(ethSendTransaction.SendRequestAsync(new TransactionInput(encodedData, gas, @from)));
}
/// <summary>
///异步 发送交易,返回交易回执
/// </summary>
/// <param name="abi">合约abi</param>
/// <param name="contractAddress">合约地址</param>
/// <param name="functionName">合约请求调用方法名称</param>
/// <param name="inputsParameters">方法对应的 参数</param>
/// <param name="value">请求参数值</param>
/// <returns>交易回执</returns>
public async Task <ReceiptResultDto> SendTranscationWithReceiptAsync(string abi, string contractAddress, string functionName, Parameter[] inputsParameters, params object[] value)
{
ReceiptResultDto receiptResult = new ReceiptResultDto();
var des = new ABIDeserialiser();
var contract = des.DeserialiseContract(abi);
var function = contract.Functions.FirstOrDefault(x => x.Name == functionName);
var sha3Signature = function.Sha3Signature;// "0x53ba0944";
var functionCallEncoder = new FunctionCallEncoder();
var result = functionCallEncoder.EncodeRequest(sha3Signature, inputsParameters,
value);
var blockNumber = await GetBlockNumberAsync();
var transDto = BuildTransactionParams(result, blockNumber, contractAddress);
var tx = BuildRLPTranscation(transDto);
tx.Sign(new EthECKey(this._privateKey.HexToByteArray(), true));
var txHash = await SendRequestAysnc <string>(tx.Data, tx.Signature);
if (txHash != null)
{
receiptResult = await GetTranscationReceiptAsync(txHash);
if (receiptResult == null)
{
throw new Exception("txHash != null 的时候报错了：" + receiptResult.ToJson());
}
}
return(receiptResult);
}
/// <summary>
/// 异步 通用合约部署，只返回交易Hash
/// </summary>
/// <param name="binCode">合约内容</param>
/// <returns>交易Hash</returns>
public async Task <string> DeployContractAsync(string binCode, string abi = null, params object[] values)
{
var blockNumber = await GetBlockNumberAsync();
var resultData = "";
ConstructorCallEncoder _constructorCallEncoder = new ConstructorCallEncoder();
if (values == null || values.Length == 0)
{
resultData = _constructorCallEncoder.EncodeRequest(binCode, "");
}
var des = new ABIDeserialiser();
var contract = des.DeserialiseContract(abi);
if (contract.Constructor == null)
{
throw new Exception(
"Parameters supplied for a constructor but ABI does not contain a constructor definition");
}
resultData = _constructorCallEncoder.EncodeRequest(binCode,
contract.Constructor.InputParameters, values);
var transParams = BuildTransactionParams(resultData, blockNumber, "");
var tx = BuildRLPTranscation(transParams);
tx.Sign(new EthECKey(this._privateKey.HexToByteArray(), true));
var result = await SendRequestAysnc <string>(tx.Data, tx.Signature);
return(result);
}
/// <summary>
///同步 发送交易,返回交易回执
/// </summary>
/// <param name="abi">合约abi</param>
/// <param name="contractAddress">合约地址</param>
/// <param name="functionName">合约请求调用方法名称</param>
/// <param name="inputsParameters">方法对应的 参数</param>
/// <param name="value">请求参数值</param>
/// <returns>交易回执</returns>
public ReceiptResultDto SendTranscationWithReceipt(string abi, string contractAddress, string functionName, Parameter[] inputsParameters, params object[] value)
{
ReceiptResultDto receiptResult = new ReceiptResultDto();
var des = new ABIDeserialiser();
var contract = des.DeserialiseContract(abi);
var function = contract.Functions.FirstOrDefault(x => x.Name == functionName);
var sha3Signature = function.Sha3Signature;// "0x53ba0944";
var functionCallEncoder = new FunctionCallEncoder();
var result = functionCallEncoder.EncodeRequest(sha3Signature, inputsParameters,
value);
var blockNumber = GetBlockNumber();
var transDto = BuildTransactionParams(result, blockNumber, contractAddress);
var tx = BuildRLPTranscation(transDto);
tx.Sign(new EthECKey(this._privateKey.HexToByteArray(), true));
var txHash = SendRequest <object>(tx.Data, tx.Signature);
if (txHash != null)
{
receiptResult = GetTranscationReceipt(txHash.ToString());
}
return(receiptResult);
}
/// <summary>
/// 同步 通用合约部署，只返回交易Hash
/// </summary>
/// <param name="binCode">合约内容</param>
/// <returns>交易Hash</returns>
public string DeployContract(string binCode, string abi = null, params object[] values)
{
var blockNumber = GetBlockNumber();
var resultData = "";
ConstructorCallEncoder _constructorCallEncoder = new ConstructorCallEncoder();
var des = new ABIDeserialiser();
var contract = des.DeserialiseContract(abi);
if (contract.Constructor != null)
{
if (values != null)
{
resultData = _constructorCallEncoder.EncodeRequest(binCode,
contract.Constructor.InputParameters, values);
}
else
{
resultData = _constructorCallEncoder.EncodeRequest(binCode, "");
}
}
else
{
resultData = binCode;
}
var transParams = BuildTransactionParams(resultData, blockNumber, "");
var tx = BuildRLPTranscation(transParams);
tx.Sign(new EthECKey(this._privateKey.HexToByteArray(), true));
var result = SendRequest <object>(tx.Data, tx.Signature);
return(Convert.ToString(result));
}
private async Task <EventABI[]> GetEventAbisAsync(IEventSubscriptionDto eventSubscription)
{
if (eventSubscription.ContractId == null)
{
return(null);
}
if (!eventSubscription.CatchAllContractEvents && eventSubscription.EventSignatures.Count == 0)
{
return(null);
}
var contractDto = await SubscriberContractRepository.GetAsync(eventSubscription.SubscriberId, eventSubscription.ContractId.Value).ConfigureAwait(false);
ContractABI contractAbi = contractDto.Abi == null ? null : _abiDeserializer.DeserialiseContract(contractDto.Abi);
if (contractAbi == null)
{
return(null);
}
if (eventSubscription.CatchAllContractEvents)
{
return(contractAbi.Events);
}
return(contractAbi.Events.Where(e => eventSubscription.EventSignatures.Contains(e.Sha3Signature)).ToArray());
}
public string ContractGen(string abi, string contractName, string nameSpace)
{
contractName = MakeFirstCharUpper(contractName);
var des = new ABIDeserialiser();
var contract = des.DeserialiseContract(abi);
var operations = EventsGen(contract) + FunctionsGen(contract);
var genContract = string.Format(ContractTemplate, abi.Replace("\"", "\"\""), contractName, operations);
return(string.Format(NameSpaceTemplate, nameSpace, genContract));
}
public ServiceModel(string abi, string byteCode, string contractName = DEFAULT_CONTRACTNAME,
string namespaceName = DEFAULT_NAMESPACE)
{
ContractName = CapitaliseFirstChar(contractName);
Namespace = CapitaliseFirstChar(namespaceName);
Abi = abi;
ByteCode = byteCode;
var des = new ABIDeserialiser();
Contract = des.DeserialiseContract(abi);
}
public CommonModel(string abi, string byteCode,
string namespaceName = DEFAULT_NAMESPACE)
{
utils = new Utils();
GlobalNames = new GlobalNames();
Namespace = Utils.CapitaliseFirstChar(namespaceName);
Abi = abi;
ByteCode = byteCode;
var des = new ABIDeserialiser();
Contract = des.DeserialiseContract(abi);
}
public Event DecodeTransactionLog(
TransactionLog transactionLog)
{
var abiObject = _abiDeserializer.DeserialiseContract(transactionLog.Abi).Events[0];
// ReSharper disable once CoVariantArrayConversion
var parameters = _eventTopicDecoder.DecodeDefaultTopics(abiObject, transactionLog.Topics, transactionLog.Data);
return(new Event
{
EventName = abiObject.Name,
EventSignature = $"0x{abiObject.Sha3Signature}",
LogIndex = transactionLog.LogIndex,
Parameters = parameters.Select(x => new EventParameter
{
ParameterName = x.Parameter.Name,
ParameterOrder = x.Parameter.Order,
ParameterType = x.Parameter.Type,
ParameterValue = StringifyParameter(x)
}).ToList(),
ParametersJson = SerializeParameters(parameters),
TransactionHash = transactionLog.TransactionHash,
BlockTimestamp = transactionLog.BlockTimestamp
});
}
public virtual void ShouldDeserializeContract()
{
string abi = @"[{""constant"":false,""inputs"":[{""name"":""a"",""type"":""uint256""}],""name"":""multiply"",""outputs"":[{""name"":""d"",""type"":""uint256""}],""type"":""function""},{""constant"":false,""inputs"":[{""name"":""a"",""type"":""uint256""},{""name"":""to"",""type"":""address""}],""name"":""other"",""outputs"":[{""name"":""d"",""type"":""uint256""}],""type"":""function""}]";
var des = new ABIDeserialiser();
var contract = des.DeserialiseContract(abi);
var function = contract.Functions.FirstOrDefault(x => x.Name == "multiply");
Assert.NotNull(function);
Assert.False(function.Constant);
var param = function.InputParameters.FirstOrDefault(x => x.Name == "a");
Assert.NotNull(param);
Assert.Equal(param.Type, "uint256");
Assert.Equal("c6888fa1", function.Sha3Signature);
Assert.Equal("ea6ace3d", contract.Functions[1].Sha3Signature);
}
public async Task <ContractABIRegistrationResult> RegisterContractABIAsync(
string contractABI)
{
using (_log.BeginScope($"{nameof(RegisterContractABIAsync)}-{Guid.NewGuid()}"))
{
#region Logging
_log.Debug("Registering contract ABI.");
#endregion
try
{
// Currently it's an easiest way to validate input.
_abiDeserializer.DeserialiseContract(contractABI);
}
catch (Exception e)
{
#region Logging
_log.Error("Failed to register a contract ABI. Provided data is not properly formatted.", e);
#endregion
return(new ContractABIRegistrationResult
{
Error = ContractABIRegistrationError.InvalidInputFormat
});
}
var abiJson = JArray.Parse(contractABI);
foreach (var item in abiJson.Select(x => $"[{x}]"))
{
var abiObject = _abiDeserializer.DeserialiseContract(item);
if (abiObject.Events.Length == 1)
{
var eventAbi = abiObject.Events[0];
await _abiRepository.SaveABIAsync(new ABI
{
Abi = item,
Name = eventAbi.Name,
Signature = $"0x{eventAbi.Sha3Signature}",
Type = ABIType.Event
});
#region Logging
_log.Info
(
"Event ABI has been registered.",
new { eventAbi.Name, Signature = eventAbi.Sha3Signature, Type = ABIType.Event }
);
#endregion
}
else if (abiObject.Functions.Length == 1)
{
var functionAbi = abiObject.Functions[0];
if (!functionAbi.Constant)
{
await _abiRepository.SaveABIAsync(new ABI
{
Abi = item,
Name = functionAbi.Name,
Signature = $"0x{functionAbi.Sha3Signature}",
Type = ABIType.Event
});
#region Logging
_log.Info
(
"Function call ABI has been registered.",
new { functionAbi.Name, Signature = functionAbi.Sha3Signature, Type = ABIType.FunctionCall }
);
#endregion
}
else
{
#region Logging
_log.Debug
(
"Read-only function call ABI has been skipped.",
new { functionAbi.Name, Signature = functionAbi.Sha3Signature, Type = ABIType.FunctionCall }
);
#endregion
}
}
}
return(new ContractABIRegistrationResult());
}
}