public IRpcMethodResult EstimateTxFeeForSendToAddress(string toAddress, long amount, string comment, string commentTo, bool deductFeeFromAmount) { try { EstimateTxFeeOM result = new EstimateTxFeeOM(); var utxoComponent = new UtxoComponent(); var txComponent = new TransactionComponent(); var settingComponent = new SettingComponent(); var addressBookComponent = new AddressBookComponent(); var accountComponent = new AccountComponent(); if (!AccountIdHelper.AddressVerify(toAddress)) { throw new CommonException(ErrorCode.Service.Transaction.TO_ADDRESS_INVALID); } var setting = settingComponent.GetSetting(); var utxos = utxoComponent.GetAllConfirmedOutputs(); var tx = new TransactionMsg(); var totalSize = tx.Serialize().Length; var output = new OutputMsg(); output.Amount = amount; output.Index = 0; output.LockScript = Script.BuildLockScipt(toAddress); output.Size = output.LockScript.Length; tx.Outputs.Add(output); totalSize += output.Serialize().Length; var blockComponent = new BlockComponent(); var lastBlockHeight = blockComponent.GetLatestHeight(); var totalInput = 0L; var index = 0; double totalAmount = amount; double totalFee = setting.FeePerKB * ((double)totalSize / 1024.0); while (index < utxos.Count) { var account = accountComponent.GetAccountById(utxos[index].AccountId); if (account != null && !string.IsNullOrWhiteSpace(account.PrivateKey)) { var utxoTX = txComponent.GetTransactionMsgByHash(utxos[index].TransactionHash); Block utxoBlock = blockComponent.GetBlockEntiytByHash(utxos[index].BlockHash); if (utxoTX == null || utxoBlock == null) { index++; continue; } if (!utxoBlock.IsVerified) { index++; continue; } if (Time.EpochTime < utxoTX.Locktime) { index++; continue; } if (utxoTX.InputCount == 1 && utxoTX.Inputs[0].OutputTransactionHash == Base16.Encode(HashHelper.EmptyHash())) { var blockHeight = utxoBlock.Height; if (lastBlockHeight - blockHeight < 100L) { index++; continue; } } var input = new InputMsg(); input.OutputTransactionHash = utxos[index].TransactionHash; input.OutputIndex = utxos[index].OutputIndex; input.UnlockScript = Script.BuildUnlockScript(input.OutputTransactionHash, input.OutputIndex, Base16.Decode(decryptPrivateKey(account.PrivateKey)), Base16.Decode(account.PublicKey)); input.Size = input.UnlockScript.Length; tx.Inputs.Add(input); var size = input.Serialize().Length; totalSize += size; totalFee += setting.FeePerKB * ((double)size / 1024.0); totalInput += utxos[index].Amount; } else { index++; continue; } if (!deductFeeFromAmount) { totalAmount = amount + totalFee; } if (totalInput >= (long)Math.Ceiling(totalAmount)) { var size = output.Serialize().Length; if ((totalInput - (long)Math.Ceiling(totalAmount)) > (setting.FeePerKB * (double)size / 1024.0)) { totalSize += size; totalFee += setting.FeePerKB * ((double)size / 1024.0); } break; } index++; } if (totalInput < totalAmount) { throw new CommonException(ErrorCode.Service.Transaction.BALANCE_NOT_ENOUGH); } if (deductFeeFromAmount) { output.Amount -= (long)Math.Ceiling(totalFee); if (output.Amount <= 0) { throw new CommonException(ErrorCode.Service.Transaction.SEND_AMOUNT_LESS_THAN_FEE); } } result.totalFee = Convert.ToInt64(totalFee); result.totalSize = Convert.ToInt32(totalSize); return(Ok(result)); } catch (CommonException ce) { return(Error(ce.ErrorCode, ce.Message, ce)); } catch (Exception ex) { return(Error(ErrorCode.UNKNOWN_ERROR, ex.Message, ex)); } }
public IRpcMethodResult SendMany(string fromAccount, SendManyOutputIM[] receivers, string[] feeDeductAddresses) { try { string result = null; var utxoComponent = new UtxoComponent(); var txComponent = new TransactionComponent(); var settingComponent = new SettingComponent(); var addressBookComponent = new AddressBookComponent(); var accountComponent = new AccountComponent(); var transactionCommentComponent = new TransactionCommentComponent(); var blockComponent = new BlockComponent(); var lastBlockHeight = blockComponent.GetLatestHeight(); var setting = settingComponent.GetSetting(); var utxos = utxoComponent.GetAllConfirmedOutputs(); var tx = new TransactionMsg(); double totalOutput = 0; var totalSize = tx.Serialize().Length; if (receivers == null || receivers.Length == 0) { throw new CommonException(ErrorCode.Service.Transaction.TO_ADDRESS_INVALID); } foreach (var receiver in receivers) { if (!AccountIdHelper.AddressVerify(receiver.address)) { throw new CommonException(ErrorCode.Service.Transaction.TO_ADDRESS_INVALID); } var output = new OutputMsg(); output.Amount = receiver.amount; output.Index = tx.Outputs.Count; output.LockScript = Script.BuildLockScipt(receiver.address); output.Size = output.LockScript.Length; tx.Outputs.Add(output); totalSize += output.Serialize().Length; totalOutput += receiver.amount; } foreach (var address in feeDeductAddresses) { if (receivers.Where(r => r.address == address).Count() == 0) { throw new CommonException(ErrorCode.Service.Transaction.FEE_DEDUCT_ADDRESS_INVALID); } } var totalInput = 0L; var index = 0; double totalFee = setting.FeePerKB * ((double)totalSize / 1024.0); double totalAmount = totalOutput; while (index < utxos.Count) { var account = accountComponent.GetAccountById(utxos[index].AccountId); if (account != null && !string.IsNullOrWhiteSpace(account.PrivateKey)) { var utxoTX = txComponent.GetTransactionMsgByHash(utxos[index].TransactionHash); Block utxoBlock = blockComponent.GetBlockEntiytByHash(utxos[index].BlockHash); if (utxoTX == null || utxoBlock == null) { index++; continue; } if (!utxoBlock.IsVerified) { index++; continue; } if (Time.EpochTime < utxoTX.Locktime) { index++; continue; } if (utxoTX.InputCount == 1 && utxoTX.Inputs[0].OutputTransactionHash == Base16.Encode(HashHelper.EmptyHash())) { var blockHeight = utxoBlock.Height; if (lastBlockHeight - blockHeight < 100L) { index++; continue; } } var input = new InputMsg(); input.OutputTransactionHash = utxos[index].TransactionHash; input.OutputIndex = utxos[index].OutputIndex; input.UnlockScript = Script.BuildUnlockScript(input.OutputTransactionHash, input.OutputIndex, Base16.Decode(decryptPrivateKey(account.PrivateKey)), Base16.Decode(account.PublicKey)); input.Size = input.UnlockScript.Length; tx.Inputs.Add(input); var size = input.Serialize().Length; totalSize += size; totalFee += setting.FeePerKB * ((double)size / 1024.0); totalInput += utxos[index].Amount; } else { index++; continue; } if (feeDeductAddresses == null || feeDeductAddresses.Length == 0) { totalAmount = totalOutput + totalFee; } if (totalInput >= (long)Math.Ceiling(totalAmount)) { var size = tx.Outputs[0].Serialize().Length; if ((totalInput - (long)Math.Ceiling(totalAmount)) > (setting.FeePerKB * (double)size / 1024.0)) { totalSize += size; totalFee += setting.FeePerKB * ((double)size / 1024.0); if (feeDeductAddresses == null || feeDeductAddresses.Length == 0) { totalAmount = totalOutput + totalFee; } var newAccount = accountComponent.GenerateNewAccount(); if (setting.Encrypt) { if (!string.IsNullOrWhiteSpace(_cache.Get <string>("WalletPassphrase"))) { newAccount.PrivateKey = AES128.Encrypt(newAccount.PrivateKey, _cache.Get <string>("WalletPassphrase")); accountComponent.UpdatePrivateKeyAr(newAccount); } else { throw new CommonException(ErrorCode.Service.Wallet.WALLET_HAS_BEEN_LOCKED); } } var newOutput = new OutputMsg(); newOutput.Amount = totalInput - (long)Math.Ceiling(totalAmount); newOutput.Index = tx.Outputs.Count; newOutput.LockScript = Script.BuildLockScipt(newAccount.Id); newOutput.Size = newOutput.LockScript.Length; tx.Outputs.Add(newOutput); } break; } index++; } if (totalInput < totalAmount) { throw new CommonException(ErrorCode.Service.Transaction.BALANCE_NOT_ENOUGH); } if (feeDeductAddresses != null && feeDeductAddresses.Length > 0) { var averageFee = totalFee / feeDeductAddresses.Length; for (int i = 0; i < receivers.Length; i++) { if (feeDeductAddresses.Contains(receivers[i].address)) { tx.Outputs[i].Amount -= (long)Math.Ceiling(averageFee); if (tx.Outputs[i].Amount <= 0) { throw new CommonException(ErrorCode.Service.Transaction.SEND_AMOUNT_LESS_THAN_FEE); } } } } tx.Timestamp = Time.EpochTime; tx.Hash = tx.GetHash(); txComponent.AddTransactionToPool(tx); Startup.P2PBroadcastTransactionAction(tx.Hash); result = tx.Hash; for (int i = 0; i < receivers.Length; i++) { var receiver = receivers[i]; if (!string.IsNullOrWhiteSpace(receiver.tag)) { addressBookComponent.SetTag(receiver.address, receiver.tag); } if (!string.IsNullOrWhiteSpace(receiver.comment)) { transactionCommentComponent.Add(tx.Hash, i, receiver.comment); } } return(Ok(result)); } catch (CommonException ce) { return(Error(ce.ErrorCode, ce.Message, ce)); } catch (Exception ex) { return(Error(ErrorCode.UNKNOWN_ERROR, ex.Message, ex)); } }