text: /*
      This file is part of cpp-ethereum.
  
      cpp-ethereum is free software: you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published by
      the Free Software Foundation, either version 3 of the License, or
      (at your option) any later version.
  
      cpp-ethereum is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      GNU General Public License for more details.
  
      You should have received a copy of the GNU General Public License
      along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
  */
  
  #include "WebThree.h"
  
  #include <libethashseal/Ethash.h>
  #include <libethereum/ClientTest.h>
  #include <libethereum/EthereumCapability.h>
  
  #include <aleth/buildinfo.h>
  
  #include <boost/filesystem.hpp>
  #include <boost/algorithm/string.hpp>
  
  using namespace std;
  using namespace dev;
  using namespace dev::p2p;
  using namespace dev::eth;
  using namespace dev::shh;
  
  static_assert(BOOST_VERSION >= 106400, "Wrong boost headers version");
  
  WebThreeDirect::WebThreeDirect(std::string const& _clientVersion,
      boost::filesystem::path const& _dbPath, boost::filesystem::path const& _snapshotPath,
      eth::ChainParams const& _params, WithExisting _we, NetworkConfig const& _n,
      bytesConstRef _network, bool _testing)
    : m_clientVersion(_clientVersion), m_net(_clientVersion, _n, _network)
  {
      if (_testing)
          m_ethereum.reset(new eth::ClientTest(
              _params, (int)_params.networkID, m_net, shared_ptr<GasPricer>(), _dbPath, _we));
      else
          m_ethereum.reset(new eth::Client(_params, (int)_params.networkID, m_net,
              shared_ptr<GasPricer>(), _dbPath, _snapshotPath, _we));
  
      m_ethereum->startWorking();
      const auto* buildinfo = aleth_get_buildinfo();
      m_ethereum->setExtraData(rlpList(0, string{buildinfo->project_version}.substr(0, 5) + "++" +
                                              string{buildinfo->git_commit_hash}.substr(0, 4) +
                                              string{buildinfo->build_type}.substr(0, 1) +
                                              string{buildinfo->system_name}.substr(0, 5) +
                                              string{buildinfo->compiler_id}.substr(0, 3)));
  }
  
  WebThreeDirect::~WebThreeDirect()
  {
      // Utterly horrible right now - WebThree owns everything (good), but:
      // m_net (Host) owns the eth::EthereumHost via a shared_ptr.
      // The eth::EthereumHost depends on eth::Client (it maintains a reference to the BlockChain field of Client).
      // eth::Client (owned by us via a unique_ptr) uses eth::EthereumHost (via a weak_ptr).
      // Really need to work out a clean way of organising ownership and guaranteeing startup/shutdown is perfect.
  
      // Have to call stop here to get the Host to kill its io_service otherwise we end up with left-over reads,
      // still referencing Sessions getting deleted *after* m_ethereum is reset, causing bad things to happen, since
      // the guarantee is that m_ethereum is only reset *after* all sessions have ended (sessions are allowed to
      // use bits of data owned by m_ethereum).
      m_net.stop();
  }
  
  std::string WebThreeDirect::composeClientVersion(std::string const& _client)
  {
      const auto* buildinfo = aleth_get_buildinfo();
      return _client + "/" + buildinfo->project_version + "/" + buildinfo->system_name + "/" +
             buildinfo->compiler_id + buildinfo->compiler_version + "/" + buildinfo->build_type;
  }
  
  std::vector<PeerSessionInfo> WebThreeDirect::peers()
  {
      return m_net.peerSessionInfo();
  }
  
  size_t WebThreeDirect::peerCount() const
  {
      return m_net.peerCount();
  }
  
  void WebThreeDirect::setIdealPeerCount(size_t _n)
  {
      return m_net.setIdealPeerCount(_n);
  }
  
  void WebThreeDirect::setPeerStretch(size_t _n)
  {
      return m_net.setPeerStretch(_n);
  }
  
  bytes WebThreeDirect::saveNetwork()
  {
      return m_net.saveNetwork();
  }
  
  void WebThreeDirect::addNode(p2p::NodeID const& _node, bi::tcp::endpoint const& _host)
  {
      m_net.addNode(_node, NodeIPEndpoint(_host.address(), _host.port(), _host.port()));
  }
  
  void WebThreeDirect::requirePeer(p2p::NodeID const& _node, bi::tcp::endpoint const& _host)
  {
      m_net.requirePeer(_node, NodeIPEndpoint(_host.address(), _host.port(), _host.port()));
  }
  
  void WebThreeDirect::addPeer(NodeSpec const& _s, PeerType _t)
  {
      m_net.addPeer(_s, _t);
  }
  
  