public void CheckIsConstant()
{
if (VMConfig.AllowTvmConstantinople)
{
return;
}
TriggerSmartContract trigger_contract = ContractCapsule.GetTriggerContractFromTransaction(this.Transaction.Instance);
if (this.transaction_type == TransactionType.TX_CONTRACT_CALL_TYPE)
{
Deposit deposit = Deposit.CreateRoot(this.db_manager);
ContractCapsule contract = deposit.GetContract(trigger_contract.ContractAddress.ToByteArray());
if (contract == null)
{
Logger.Info(string.Format("contract: {0} is not in contract store",
Wallet.AddressToBase58(trigger_contract.ContractAddress.ToByteArray())));
throw new ContractValidateException("contract: "
+ Wallet.AddressToBase58(trigger_contract.ContractAddress.ToByteArray())
+ " is not in contract store");
}
ABI abi = contract.Instance.Abi;
if (Wallet.IsConstant(abi, trigger_contract))
{
throw new VMIllegalException("cannot call constant method");
}
}
}
private long GetTotalEnergyLimitWithFloatRatio(AccountCapsule creator,
AccountCapsule caller,
TriggerSmartContract trigger_contract,
long fee_limit,
long call_value)
{
long caller_energy_limit = GetAccountEnergyLimitWithFloatRatio(caller, fee_limit, call_value);
if (creator.Address.ToByteArray().SequenceEqual(caller.Address.ToByteArray()))
{
return(caller_energy_limit);
}
long creator_energy_limit = this.energy_processor.GetAccountLeftEnergyFromFreeze(creator);
ContractCapsule contractCapsule = this.deposit.GetContract(trigger_contract.ContractAddress.ToByteArray());
long consume_resource_percent = contractCapsule.GetConsumeUserResourcePercent();
if (creator_energy_limit * consume_resource_percent
> (DefineParameter.ONE_HUNDRED - consume_resource_percent) * caller_energy_limit)
{
return((long)Math.Floor(((double)caller_energy_limit * DefineParameter.ONE_HUNDRED) / consume_resource_percent));
}
else
{
return(caller_energy_limit + creator_energy_limit);
}
}
public async Task <decimal> BalanceOfAsync(string contractAddress, ITronAccount ownerAccount)
{
var contractAddressBytes = Base58Encoder.DecodeFromBase58Check(contractAddress);
var ownerAddressBytes = Base58Encoder.DecodeFromBase58Check(ownerAccount.Address);
var wallet = _walletClient.GetProtocol();
var functionABI = ABITypedRegistry.GetFunctionABI <BalanceOfFunction>();
try
{
var addressBytes = new byte[20];
Array.Copy(ownerAddressBytes, 1, addressBytes, 0, addressBytes.Length);
var addressBytesHex = "0x" + addressBytes.ToHex();
var balanceOf = new BalanceOfFunction {
Owner = addressBytesHex
};
var decimals = GetDecimals(wallet, contractAddressBytes);
var encodedHex = new FunctionCallEncoder().EncodeRequest(balanceOf, functionABI.Sha3Signature);
var trigger = new TriggerSmartContract
{
ContractAddress = ByteString.CopyFrom(contractAddressBytes),
OwnerAddress = ByteString.CopyFrom(ownerAddressBytes),
Data = ByteString.CopyFrom(encodedHex.HexToByteArray()),
};
var transactionExtention = await wallet.TriggerConstantContractAsync(trigger, headers : _walletClient.GetHeaders());
if (!transactionExtention.Result.Result)
{
throw new Exception(transactionExtention.Result.Message.ToStringUtf8());
}
if (transactionExtention.ConstantResult.Count == 0)
{
throw new Exception($"result error, ConstantResult length=0.");
}
var result = new FunctionCallDecoder().DecodeFunctionOutput <BalanceOfFunctionOutput>(transactionExtention.ConstantResult[0].ToByteArray().ToHex());
var balance = Convert.ToDecimal(result.Balance);
if (decimals > 0)
{
balance /= Convert.ToDecimal(Math.Pow(10, decimals));
}
return(balance);
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
throw;
}
}
public long GetTotalEnergyLimit(AccountCapsule creator,
AccountCapsule caller,
TriggerSmartContract trigger_contract,
long fee_limit,
long call_value)
{
if (VMConfig.EnergyLimitHardFork)
{
return(GetTotalEnergyLimitWithFixRatio(creator, caller, trigger_contract, fee_limit, call_value));
}
else
{
return(GetTotalEnergyLimitWithFloatRatio(creator, caller, trigger_contract, fee_limit, call_value));
}
}
public static TriggerSmartContract GetTriggerContractFromTransaction(Transaction tx)
{
TriggerSmartContract contract = null;
try
{
contract = tx.RawData.Contract[0].Parameter.Unpack <TriggerSmartContract>();
}
catch
{
contract = null;
}
return(contract);
}
public InternalTransaction(Transaction tx, InternalTransaction.TransactionType tx_type)
{
this.transaction = tx;
TransactionCapsule transaction = new TransactionCapsule(tx);
this.proto_encoded = transaction.Data;
this.nonce = 0;
this.deep = -1;
if (tx_type == TransactionType.TX_CONTRACT_CREATION_TYPE)
{
CreateSmartContract contract = ContractCapsule.GetSmartContractFromTransaction(tx);
if (contract == null)
{
throw new ContractValidateException("Invalid CreateSmartContract protocol");
}
this.send_address = contract.OwnerAddress.ToByteArray();
this.receive_address = new byte[0];
this.transfer_to_address = Wallet.GenerateContractAddress(tx);
this.note = "create";
this.value = contract.NewContract.CallValue;
this.data = contract.NewContract.Bytecode.ToByteArray();
this.token_info.Add(contract.TokenId.ToString(), contract.CallTokenValue);
}
else if (tx_type == TransactionType.TX_CONTRACT_CALL_TYPE)
{
TriggerSmartContract contract = ContractCapsule.GetTriggerContractFromTransaction(tx);
if (contract == null)
{
throw new ContractValidateException("Invalid TriggerSmartContract protocol");
}
this.send_address = contract.OwnerAddress.ToByteArray();
this.receive_address = contract.ContractAddress.ToByteArray();
this.transfer_to_address = (byte[])this.receive_address.Clone();
this.note = "call";
this.value = contract.CallValue;
this.data = contract.Data.ToByteArray();
this.token_info.Add(contract.TokenId.ToString(), contract.CallTokenValue);
}
this.hash = transaction.Id.Hash;
}
public long GetTotalEnergyLimitWithFixRatio(AccountCapsule creator,
AccountCapsule caller,
TriggerSmartContract trigger_contract,
long fee_limit,
long call_value)
{
long caller_energy_limit = GetAccountEnergyLimitWithFixRatio(caller, fee_limit, call_value);
if (creator.Address.ToByteArray().SequenceEqual(caller.Address.ToByteArray()))
{
return(caller_energy_limit);
}
long creator_energy_limit = 0;
ContractCapsule contract = this.deposit.GetContract(trigger_contract.ContractAddress.ToByteArray());
long consume_resource_percent = contract.GetConsumeUserResourcePercent();
long origin_energy_limit = contract.GetOriginEnergyLimit();
if (origin_energy_limit < 0)
{
throw new ContractValidateException("origin_energy_limit can't be < 0");
}
if (consume_resource_percent <= 0)
{
creator_energy_limit = Math.Min(this.energy_processor.GetAccountLeftEnergyFromFreeze(creator), origin_energy_limit);
}
else
{
if (consume_resource_percent < DefineParameter.ONE_HUNDRED)
{
BigInteger left = new BigInteger(caller_energy_limit);
left = BigInteger.Multiply(left, new BigInteger(DefineParameter.ONE_HUNDRED - consume_resource_percent));
left = BigInteger.Divide(left, new BigInteger(consume_resource_percent));
long right = Math.Min(this.energy_processor.GetAccountLeftEnergyFromFreeze(creator), origin_energy_limit);
creator_energy_limit = Math.Min((long)left, right);
}
}
return(caller_energy_limit + creator_energy_limit);
}
public void Pay()
{
byte[] origin_account = null;
byte[] caller_account = null;
long percent = 0;
long origin_energy_limit = 0;
switch (this.transaction_type)
{
case TransactionType.TX_CONTRACT_CREATION_TYPE:
{
caller_account = TransactionCapsule.GetOwner(this.transaction.Instance.RawData.Contract[0]);
origin_account = caller_account;
}
break;
case TransactionType.TX_CONTRACT_CALL_TYPE:
{
TriggerSmartContract trigger_contract = ContractCapsule.GetTriggerContractFromTransaction(this.transaction.Instance);
ContractCapsule contract = this.db_manager.Contract.Get(trigger_contract.ContractAddress.ToByteArray());
caller_account = trigger_contract.OwnerAddress.ToByteArray();
origin_account = contract.OriginAddress;
percent = Math.Max(DefineParameter.ONE_HUNDRED - contract.GetConsumeUserResourcePercent(), 0);
percent = Math.Min(percent, DefineParameter.ONE_HUNDRED);
origin_energy_limit = contract.GetOriginEnergyLimit();
}
break;
default:
return;
}
this.receipt.PayEnergyBill(this.db_manager,
this.db_manager.Account.Get(origin_account),
this.db_manager.Account.Get(caller_account),
percent,
origin_energy_limit,
energy_processor,
this.db_manager.WitnessController.GetHeadSlot());
}
private long GetDecimals(Wallet.WalletClient wallet, byte[] contractAddressBytes)
{
var trc20Decimals = new DecimalsFunction();
var callEncoder = new FunctionCallEncoder();
var functionABI = ABITypedRegistry.GetFunctionABI <DecimalsFunction>();
var encodedHex = callEncoder.EncodeRequest(trc20Decimals, functionABI.Sha3Signature);
var trigger = new TriggerSmartContract
{
ContractAddress = ByteString.CopyFrom(contractAddressBytes),
Data = ByteString.CopyFrom(encodedHex.HexToByteArray()),
};
var txnExt = wallet.TriggerConstantContract(trigger, headers: _walletClient.GetHeaders());
var result = txnExt.ConstantResult[0].ToByteArray().ToHex();
return(new FunctionCallDecoder().DecodeOutput <long>(result, new Parameter("uint8", "d")));
}
public static bool IsConstant(ABI abi, TriggerSmartContract trigger_contract)
{
try
{
bool constant = IsConstant(abi, GetSelector(trigger_contract.Data.ToByteArray()));
if (constant)
{
if (Args.Instance.VM.SupportConstant == false)
{
throw new ContractValidateException("this node don't support constant");
}
}
return(constant);
}
catch (ContractValidateException e)
{
throw e;
}
catch
{
return(false);
}
}
private void Call()
{
if (!this.deposit.DBManager.DynamicProperties.SupportVM())
{
Logger.Info("vm work is off, need to be opened by the committee");
throw new ContractValidateException("VM work is off, need to be opened by the committee");
}
TriggerSmartContract contract = ContractCapsule.GetTriggerContractFromTransaction(this.transaction);
if (contract == null)
{
return;
}
if (contract.ContractAddress == null)
{
throw new ContractValidateException("Cannot get contract address from TriggerContract");
}
byte[] contract_address = contract.ContractAddress.ToByteArray();
ContractCapsule deployed_contract = this.deposit.GetContract(contract_address);
if (null == deployed_contract)
{
Logger.Info("No contract or not a smart contract");
throw new ContractValidateException("No contract or not a smart contract");
}
long call_value = contract.CallValue;
long token_value = 0;
long token_id = 0;
if (VMConfig.AllowTvmTransferTrc10)
{
token_value = contract.CallTokenValue;
token_id = contract.TokenId;
}
if (VMConfig.EnergyLimitHardFork)
{
if (call_value < 0)
{
throw new ContractValidateException("callValue must >= 0");
}
if (token_value < 0)
{
throw new ContractValidateException("tokenValue must >= 0");
}
}
byte[] caller_address = contract.OwnerAddress.ToByteArray();
CheckTokenValueAndId(token_value, token_id);
byte[] code = this.deposit.GetCode(contract_address);
if (code != null && code.Length > 0)
{
long fee_limit = this.transaction.RawData.FeeLimit;
if (fee_limit < 0 || fee_limit > VMConfig.MAX_FEE_LIMIT)
{
Logger.Info(string.Format("invalid feeLimit {0}", fee_limit));
throw new ContractValidateException(
"feeLimit must be >= 0 and <= " + VMConfig.MAX_FEE_LIMIT);
}
AccountCapsule caller = this.deposit.GetAccount(caller_address);
long energy_limit = 0;
if (this.is_static_call)
{
energy_limit = DefineParameter.ENERGY_LIMIT_IN_CONSTANT_TX;
}
else
{
AccountCapsule creator = this.deposit.GetAccount(deployed_contract.Instance.OriginAddress.ToByteArray());
energy_limit = GetTotalEnergyLimit(creator, caller, contract, fee_limit, call_value);
}
long max_cpu_time_tx = this.deposit.DBManager.DynamicProperties.GetMaxCpuTimeOfOneTx() * DefineParameter.ONE_THOUSAND;
long tx_cpu_limit =
(long)(max_cpu_time_tx * GetCpuLimitInUsRatio());
long vm_start = Helper.NanoTime() / DefineParameter.ONE_THOUSAND;
long vm_should_end = vm_start + tx_cpu_limit;
IProgramInvoke invoke = this.invoke_factory.CreateProgramInvoke(TransactionType.TX_CONTRACT_CALL_TYPE,
this.executor_type,
this.transaction,
token_value,
token_id,
this.block.Instance,
this.deposit,
vm_start,
vm_should_end,
energy_limit);
if (this.is_static_call)
{
invoke.IsStaticCall = true;
}
this.vm = new Vm();
this.root_internal_transaction = new InternalTransaction(this.transaction, this.transaction_type);
this.program = new Program(code, invoke, this.root_internal_transaction, this.block);
byte[] tx_id = new TransactionCapsule(this.transaction).Id.Hash;
this.program.RootTransactionId = tx_id;
// // TODO: EventPluginLoader is not Implementation
//if (enableEventLinstener &&
// (EventPluginLoader.getInstance().isContractEventTriggerEnable()
// || EventPluginLoader.getInstance().isContractLogTriggerEnable())
// && isCheckTransaction())
//{
// logInfoTriggerParser = new LogInfoTriggerParser(this.block.getNum(), this.block.getTimeStamp(), txId, callerAddress);
//}
}
this.program.Result.ContractAddress = contract_address;
if (call_value > 0)
{
MUtil.Transfer(this.deposit, caller_address, contract_address, call_value);
}
if (VMConfig.AllowTvmTransferTrc10)
{
if (token_value > 0)
{
MUtil.TransferToken(this.deposit, caller_address, contract_address, token_id.ToString(), token_value);
}
}
}
public IProgramInvoke CreateProgramInvoke(TransactionType tx_type,
ExecutorType executor_type,
Transaction tx,
long token_value,
long token_id,
Block block,
IDeposit deposit,
long vm_start,
long vm_should_end,
long energy_limit)
{
byte[] data = null;
byte[] last_hash = null;
byte[] coinbase = null;
byte[] contract_address = null;
byte[] owner_address = null;
long balance = 0;
long number = -1;
long timestamp = 0;
if (tx_type == TransactionType.TX_CONTRACT_CREATION_TYPE)
{
CreateSmartContract contract = ContractCapsule.GetSmartContractFromTransaction(tx);
contract_address = Wallet.GenerateContractAddress(tx);
owner_address = contract.OwnerAddress.ToByteArray();
balance = deposit.GetBalance(owner_address);
data = new byte[0];
long call_value = contract.NewContract.CallValue;
switch (executor_type)
{
case ExecutorType.ET_NORMAL_TYPE:
case ExecutorType.ET_PRE_TYPE:
{
if (null != block)
{
last_hash = block.BlockHeader.RawData.ParentHash.ToByteArray();
coinbase = block.BlockHeader.RawData.WitnessAddress.ToByteArray();
timestamp = block.BlockHeader.RawData.Timestamp / 1000;
number = block.BlockHeader.RawData.Number;
}
}
break;
default:
break;
}
return(new ProgramInvoke(contract_address,
owner_address,
owner_address,
balance,
call_value,
token_value,
token_id,
data,
last_hash,
coinbase,
timestamp,
number,
deposit,
vm_start,
vm_should_end,
energy_limit));
}
else if (tx_type == TransactionType.TX_CONTRACT_CALL_TYPE)
{
TriggerSmartContract contract = ContractCapsule.GetTriggerContractFromTransaction(tx);
byte[] address = contract.ContractAddress.ToByteArray();
byte[] origin = contract.OwnerAddress.ToByteArray();
byte[] caller = contract.OwnerAddress.ToByteArray();
balance = deposit.GetBalance(caller);
long call_value = contract.CallValue;
data = contract.Data.ToByteArray();
switch (executor_type)
{
case ExecutorType.ET_CONSTANT_TYPE:
break;
case ExecutorType.ET_PRE_TYPE:
case ExecutorType.ET_NORMAL_TYPE:
if (null != block)
{
last_hash = block.BlockHeader.RawData.ParentHash.ToByteArray();
coinbase = block.BlockHeader.RawData.WitnessAddress.ToByteArray();
timestamp = block.BlockHeader.RawData.Timestamp / 1000;
number = block.BlockHeader.RawData.Number;
}
break;
default:
break;
}
return(new ProgramInvoke(address,
origin,
caller,
balance,
call_value,
token_value,
token_id,
data,
last_hash,
coinbase,
timestamp,
number,
deposit,
vm_start,
vm_should_end,
energy_limit));
}
throw new ContractValidateException("Unknown contract type");
}
public async Task <string> TransferAsync(string contractAddress, ITronAccount ownerAccount, string toAddress, decimal amount, string memo, long feeLimit)
{
var contractAddressBytes = Base58Encoder.DecodeFromBase58Check(contractAddress);
var callerAddressBytes = Base58Encoder.DecodeFromBase58Check(toAddress);
var ownerAddressBytes = Base58Encoder.DecodeFromBase58Check(ownerAccount.Address);
var wallet = _walletClient.GetProtocol();
var functionABI = ABITypedRegistry.GetFunctionABI <TransferFunction>();
try
{
var contract = await wallet.GetContractAsync(new BytesMessage
{
Value = ByteString.CopyFrom(contractAddressBytes),
}, headers : _walletClient.GetHeaders());
var toAddressBytes = new byte[20];
Array.Copy(callerAddressBytes, 1, toAddressBytes, 0, toAddressBytes.Length);
var toAddressHex = "0x" + toAddressBytes.ToHex();
var decimals = GetDecimals(wallet, contractAddressBytes);
var tokenAmount = amount;
if (decimals > 0)
{
tokenAmount = amount * Convert.ToDecimal(Math.Pow(10, decimals));
}
var trc20Transfer = new TransferFunction
{
To = toAddressHex,
TokenAmount = Convert.ToInt64(tokenAmount),
};
var encodedHex = new FunctionCallEncoder().EncodeRequest(trc20Transfer, functionABI.Sha3Signature);
var trigger = new TriggerSmartContract
{
ContractAddress = ByteString.CopyFrom(contractAddressBytes),
OwnerAddress = ByteString.CopyFrom(ownerAddressBytes),
Data = ByteString.CopyFrom(encodedHex.HexToByteArray()),
};
var transactionExtention = await wallet.TriggerConstantContractAsync(trigger, headers : _walletClient.GetHeaders());
if (!transactionExtention.Result.Result)
{
_logger.LogWarning($"[transfer]transfer failed, message={transactionExtention.Result.Message.ToStringUtf8()}.");
return(null);
}
var transaction = transactionExtention.Transaction;
if (transaction.Ret.Count > 0 && transaction.Ret[0].Ret == Transaction.Types.Result.Types.code.Failed)
{
return(null);
}
transaction.RawData.Data = ByteString.CopyFromUtf8(memo);
transaction.RawData.FeeLimit = feeLimit;
var transSign = _transactionClient.GetTransactionSign(transaction, ownerAccount.PrivateKey);
var result = await _transactionClient.BroadcastTransactionAsync(transSign);
return(transSign.GetTxid());
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
return(null);
}
}