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142 lines
4.1 KiB
142 lines
4.1 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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cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file Utility.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 "Utility.h"
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#include <boost/regex.hpp>
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#include <boost/filesystem.hpp>
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#include <libdevcore/SHA3.h>
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#include <libdevcore/RLP.h>
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#include <libdevcore/Log.h>
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#include <libethcore/Common.h>
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#include "CanonBlockChain.h"
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#include "Defaults.h"
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using namespace std;
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using namespace dev;
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using namespace dev::eth;
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namespace fs = boost::filesystem;
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bytes dev::eth::parseData(string const& _args)
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{
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bytes m_data;
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boost::smatch what;
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static const boost::regex r("(!|#|@|\\$)?\"([^\"]*)\"(\\s.*)?");
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static const boost::regex d("(@|\\$)?([0-9]+)(\\s*(ether)|(finney)|(szabo))?(\\s.*)?");
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static const boost::regex h("(@|\\$)?(0x)?(([a-fA-F0-9])+)(\\s.*)?");
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string s = _args;
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while (s.size())
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if (boost::regex_match(s, what, d))
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{
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u256 v((string)what[2]);
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if (what[6] == "szabo")
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v *= dev::eth::szabo;
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else if (what[5] == "finney")
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v *= dev::eth::finney;
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else if (what[4] == "ether")
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v *= dev::eth::ether;
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bytes bs = dev::toCompactBigEndian(v);
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if (what[1] != "$")
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for (auto i = bs.size(); i < 32; ++i)
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m_data.push_back(0);
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for (auto b: bs)
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m_data.push_back(b);
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s = what[7];
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}
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else if (boost::regex_match(s, what, h))
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{
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bytes bs = fromHex(((what[3].length() & 1) ? "0" : "") + what[3]);
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if (what[1] != "$")
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for (auto i = bs.size(); i < 32; ++i)
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m_data.push_back(0);
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for (auto b: bs)
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m_data.push_back(b);
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s = what[5];
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}
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else if (boost::regex_match(s, what, r))
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{
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bytes d = asBytes(what[2]);
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if (what[1] == "!")
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m_data += FixedHash<4>(sha3(d)).asBytes();
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else if (what[1] == "#")
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m_data += sha3(d).asBytes();
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else if (what[1] == "$")
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m_data += d + bytes{0};
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else
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m_data += d + bytes(32 - what[2].length() % 32, 0);
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s = what[3];
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}
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else
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s = s.substr(1);
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return m_data;
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}
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void dev::eth::upgradeDatabase(std::string const& _basePath, h256 const& _genesisHash)
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{
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std::string path = _basePath.empty() ? Defaults::get()->dbPath() : _basePath;
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if (fs::exists(path + "/state") && fs::exists(path + "/details") && fs::exists(path + "/blocks"))
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{
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// upgrade
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cnote << "Upgrading database to new layout...";
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bytes statusBytes = contents(path + "/status");
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RLP status(statusBytes);
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try
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{
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auto minorProtocolVersion = (unsigned)status[1];
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auto databaseVersion = (unsigned)status[2];
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auto genesisHash = status.itemCount() > 3 ? (h256)status[3] : _genesisHash;
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string chainPath = path + "/" + toHex(genesisHash.ref().cropped(0, 4));
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string extrasPath = chainPath + "/" + toString(databaseVersion);
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// write status
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if (!fs::exists(chainPath + "/blocks"))
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{
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fs::create_directories(chainPath);
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fs::permissions(chainPath, fs::owner_all);
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fs::rename(path + "/blocks", chainPath + "/blocks");
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if (!fs::exists(extrasPath + "/extras"))
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{
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fs::create_directories(extrasPath);
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fs::permissions(extrasPath, fs::owner_all);
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fs::rename(path + "/details", extrasPath + "/extras");
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fs::rename(path + "/state", extrasPath + "/state");
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writeFile(extrasPath + "/minor", rlp(minorProtocolVersion));
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}
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}
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}
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catch (Exception& ex)
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{
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cwarn << "Couldn't upgrade: " << ex.what() << boost::diagnostic_information(ex);
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}
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catch (...)
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{
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cwarn << "Couldn't upgrade. Some issue with moving files around. Probably easiest just to redownload.";
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}
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fs::rename(path + "/status", path + "/status.old");
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}
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}
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