Coverage Summary for Class: TxPendingValidator (co.rsk.net.handler)

Class Class, % Method, % Line, %
TxPendingValidator 100% (1/1) 100% (3/3) 92.9% (26/28)


1 /* 2  * This file is part of RskJ 3  * Copyright (C) 2017 RSK Labs Ltd. 4  * 5  * This program is free software: you can redistribute it and/or modify 6  * it under the terms of the GNU Lesser General Public License as published by 7  * the Free Software Foundation, either version 3 of the License, or 8  * (at your option) any later version. 9  * 10  * This program is distributed in the hope that it will be useful, 11  * but WITHOUT ANY WARRANTY; without even the implied warranty of 12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13  * GNU Lesser General Public License for more details. 14  * 15  * You should have received a copy of the GNU Lesser General Public License 16  * along with this program. If not, see <http://www.gnu.org/licenses/>. 17  */ 18  19 package co.rsk.net.handler; 20  21 import co.rsk.core.Coin; 22 import co.rsk.net.TransactionValidationResult; 23 import co.rsk.net.handler.txvalidator.*; 24 import org.ethereum.config.Constants; 25 import org.ethereum.config.blockchain.upgrades.ActivationConfig; 26 import org.ethereum.core.*; 27 import org.slf4j.Logger; 28 import org.slf4j.LoggerFactory; 29 import org.bouncycastle.util.BigIntegers; 30  31 import javax.annotation.Nullable; 32 import java.math.BigInteger; 33 import java.util.LinkedList; 34 import java.util.List; 35  36 /** 37  * Validator for using in pending state. 38  * 39  * Add/remove checks here. 40  */ 41 public class TxPendingValidator { 42  private static final Logger logger = LoggerFactory.getLogger("txpendingvalidator"); 43  44  private final List<TxValidatorStep> validatorSteps = new LinkedList<>(); 45  46  private final Constants constants; 47  private final ActivationConfig activationConfig; 48  49  public TxPendingValidator(Constants constants, ActivationConfig activationConfig, int accountSlots) { 50  this.constants = constants; 51  this.activationConfig = activationConfig; 52  53  validatorSteps.add(new TxNotNullValidator()); 54  validatorSteps.add(new TxValidatorNotRemascTxValidator()); 55  validatorSteps.add(new TxValidatorGasLimitValidator()); 56  validatorSteps.add(new TxValidatorAccountStateValidator()); 57  validatorSteps.add(new TxValidatorNonceRangeValidator(accountSlots)); 58  validatorSteps.add(new TxValidatorAccountBalanceValidator()); 59  validatorSteps.add(new TxValidatorMinimuGasPriceValidator()); 60  validatorSteps.add(new TxValidatorIntrinsicGasLimitValidator(constants, activationConfig)); 61  } 62  63  public TransactionValidationResult isValid(Transaction tx, Block executionBlock, @Nullable AccountState state) { 64  BigInteger blockGasLimit = BigIntegers.fromUnsignedByteArray(executionBlock.getGasLimit()); 65  Coin minimumGasPrice = executionBlock.getMinimumGasPrice(); 66  long bestBlockNumber = executionBlock.getNumber(); 67  long basicTxCost = tx.transactionCost(constants, activationConfig.forBlock(bestBlockNumber)); 68  69  if (state == null && basicTxCost != 0) { 70  logger.trace("[tx={}, sender={}] account doesn't exist", tx.getHash(), tx.getSender()); 71  return TransactionValidationResult.withError("the sender account doesn't exist"); 72  } 73  74  for (TxValidatorStep step : validatorSteps) { 75  TransactionValidationResult validationResult = step.validate(tx, state, blockGasLimit, minimumGasPrice, bestBlockNumber, basicTxCost == 0); 76  if (!validationResult.transactionIsValid()) { 77  logger.info("[tx={}] validation failed with error: {}", tx.getHash(), validationResult.getErrorMessage()); 78  return validationResult; 79  } 80  } 81  82  return TransactionValidationResult.ok(); 83  } 84 }