Coverage Summary for Class: BlockRootValidationRule (co.rsk.validators)

Class Class, % Method, % Line, %
BlockRootValidationRule 100% (1/1) 100% (3/3) 66.7% (10/15)


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.validators; 20  21 import co.rsk.core.bc.BlockHashesHelper; 22 import co.rsk.panic.PanicProcessor; 23 import org.ethereum.config.blockchain.upgrades.ActivationConfig; 24 import org.ethereum.config.blockchain.upgrades.ConsensusRule; 25 import org.ethereum.core.Block; 26 import org.ethereum.util.ByteUtil; 27 import org.slf4j.Logger; 28 import org.slf4j.LoggerFactory; 29  30 import java.util.Arrays; 31  32 /** 33  * Validate the transaction root of a block. 34  * It calculates the transaction root hash given the block transaction list 35  * and compares the result with the transaction root hash in block header 36  * 37  * @return true if the transaction root is valid, false if the transaction root is invalid 38  */ 39 public class BlockRootValidationRule implements BlockValidationRule { 40  41  private static final Logger logger = LoggerFactory.getLogger("blockvalidator"); 42  private static final PanicProcessor panicProcessor = new PanicProcessor(); 43  44  private final ActivationConfig activationConfig; 45  46  public BlockRootValidationRule(ActivationConfig activationConfig) { 47  this.activationConfig = activationConfig; 48  } 49  50  @Override 51  public boolean isValid(Block block) { 52  boolean isRskip126Enabled = activationConfig.isActive(ConsensusRule.RSKIP126, block.getNumber()); 53  byte[] blockTxRootHash = block.getTxTrieRoot(); 54  byte[] txListRootHash = BlockHashesHelper.getTxTrieRoot(block.getTransactionsList(), isRskip126Enabled); 55  56  if (!Arrays.equals(blockTxRootHash, txListRootHash)) { 57  String message = String.format("Block's given Trie Hash doesn't match: %s != %s", 58  ByteUtil.toHexString(blockTxRootHash), ByteUtil.toHexString(txListRootHash)); 59  60  logger.warn(message); 61  panicProcessor.panic("invalidtrie", message); 62  return false; 63  } 64  65  return true; 66  } 67 }