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89 lines
2.3 KiB
89 lines
2.3 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Foobar is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file BlockInfo.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*/
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#include "Common.h"
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#include "Exceptions.h"
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#include "RLP.h"
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#include "BlockInfo.h"
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using namespace std;
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using namespace eth;
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BlockInfo* BlockInfo::s_genesis = nullptr;
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BlockInfo::BlockInfo()
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{
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number = Invalid256;
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}
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bytes BlockInfo::createGenesisBlock()
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{
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RLPStream block(3);
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auto sha256EmptyList = sha3(RLPEmptyList);
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block.appendList(7) << (uint)0 << sha256EmptyList << (uint)0 << sha256EmptyList << ((uint)1 << 36) << (uint)0 << (uint)0;
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block.appendRaw(RLPEmptyList);
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block.appendRaw(RLPEmptyList);
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return block.out();
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}
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void BlockInfo::populateGenesis()
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{
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bytes genesisBlock = createGenesisBlock();
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populate(&genesisBlock, 0);
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}
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void BlockInfo::populate(bytesConstRef _block, u256 _number)
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{
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number = _number;
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RLP root(_block);
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try
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{
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RLP header = root[0];
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hash = eth::sha3(_block);
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parentHash = header[0].toInt<u256>();
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sha256Uncles = header[1].toInt<u256>();
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coinbaseAddress = header[2].toInt<u160>();
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sha256Transactions = header[3].toInt<u256>();
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difficulty = header[4].toInt<uint>();
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timestamp = header[5].toInt<u256>();
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nonce = header[6].toInt<u256>();
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}
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catch (RLP::BadCast)
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{
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throw InvalidBlockFormat();
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}
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}
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void BlockInfo::verifyInternals(bytesConstRef _block)
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{
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RLP root(_block);
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if (sha256Transactions != sha3(root[1].data()))
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throw InvalidTransactionsHash();
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if (sha256Uncles != sha3(root[2].data()))
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throw InvalidUnclesHash();
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// TODO: check difficulty against timestamp.
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// TODO: check proof of work.
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// TODO: check each transaction - allow coinbaseAddress for the miner fees, but everything else must be exactly how we would do it.
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}
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