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538 lines
18 KiB
C++
538 lines
18 KiB
C++
#include <stdio.h>
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#include <sstream>
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#include <openssl/x509.h>
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#include <openssl/pem.h>
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#include <boost/lexical_cast.hpp>
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#include <boost/date_time/local_time/local_time.hpp>
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#include <boost/date_time/posix_time/posix_time.hpp>
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#include <boost/property_tree/ini_parser.hpp>
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// There is bug in boost 1.49 with gcc 4.7 coming with Debian Wheezy
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#define GCC47_BOOST149 ((BOOST_VERSION == 104900) && (__GNUC__ == 4) && (__GNUC_MINOR__ >= 7))
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#if !GCC47_BOOST149
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#include <boost/property_tree/json_parser.hpp>
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#endif
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#include "Log.h"
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#include "Config.h"
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#include "NetDb.h"
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#include "RouterContext.h"
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#include "Daemon.h"
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#include "Tunnel.h"
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#include "Timestamp.h"
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#include "Transports.h"
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#include "version.h"
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#include "I2PControl.h"
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namespace i2p
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{
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namespace client
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{
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I2PControlService::I2PControlService (const std::string& address, int port):
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m_IsRunning (false), m_Thread (nullptr),
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m_Acceptor (m_Service, boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string(address), port)),
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m_SSLContext (m_Service, boost::asio::ssl::context::sslv23),
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m_ShutdownTimer (m_Service)
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{
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i2p::config::GetOption("i2pcontrol.password", m_Password);
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// certificate
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auto path = GetPath ();
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if (!boost::filesystem::exists (path))
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{
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if (!boost::filesystem::create_directory (path))
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LogPrint (eLogError, "Failed to create i2pcontrol directory");
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}
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if (!boost::filesystem::exists (path / I2P_CONTROL_KEY_FILE) ||
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!boost::filesystem::exists (path / I2P_CONTROL_CERT_FILE))
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{
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// create new certificate
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CreateCertificate ();
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LogPrint (eLogInfo, "I2PControl certificates created");
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}
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m_SSLContext.set_options (boost::asio::ssl::context::default_workarounds | boost::asio::ssl::context::no_sslv2 | boost::asio::ssl::context::single_dh_use);
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m_SSLContext.use_certificate_file ((path / I2P_CONTROL_CERT_FILE).string (), boost::asio::ssl::context::pem);
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m_SSLContext.use_private_key_file ((path / I2P_CONTROL_KEY_FILE).string (), boost::asio::ssl::context::pem);
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// handlers
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m_MethodHandlers[I2P_CONTROL_METHOD_AUTHENTICATE] = &I2PControlService::AuthenticateHandler;
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m_MethodHandlers[I2P_CONTROL_METHOD_ECHO] = &I2PControlService::EchoHandler;
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m_MethodHandlers[I2P_CONTROL_METHOD_I2PCONTROL] = &I2PControlService::I2PControlHandler;
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m_MethodHandlers[I2P_CONTROL_METHOD_ROUTER_INFO] = &I2PControlService::RouterInfoHandler;
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m_MethodHandlers[I2P_CONTROL_METHOD_ROUTER_MANAGER] = &I2PControlService::RouterManagerHandler;
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m_MethodHandlers[I2P_CONTROL_METHOD_NETWORK_SETTING] = &I2PControlService::NetworkSettingHandler;
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// I2PControl
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m_I2PControlHandlers[I2P_CONTROL_I2PCONTROL_PASSWORD] = &I2PControlService::PasswordHandler;
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// RouterInfo
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m_RouterInfoHandlers[I2P_CONTROL_ROUTER_INFO_UPTIME] = &I2PControlService::UptimeHandler;
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m_RouterInfoHandlers[I2P_CONTROL_ROUTER_INFO_VERSION] = &I2PControlService::VersionHandler;
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m_RouterInfoHandlers[I2P_CONTROL_ROUTER_INFO_STATUS] = &I2PControlService::StatusHandler;
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m_RouterInfoHandlers[I2P_CONTROL_ROUTER_INFO_NETDB_KNOWNPEERS] = &I2PControlService::NetDbKnownPeersHandler;
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m_RouterInfoHandlers[I2P_CONTROL_ROUTER_INFO_NETDB_ACTIVEPEERS] = &I2PControlService::NetDbActivePeersHandler;
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m_RouterInfoHandlers[I2P_CONTROL_ROUTER_INFO_NET_STATUS] = &I2PControlService::NetStatusHandler;
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m_RouterInfoHandlers[I2P_CONTROL_ROUTER_INFO_TUNNELS_PARTICIPATING] = &I2PControlService::TunnelsParticipatingHandler;
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m_RouterInfoHandlers[I2P_CONTROL_ROUTER_INFO_BW_IB_1S] = &I2PControlService::InboundBandwidth1S ;
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m_RouterInfoHandlers[I2P_CONTROL_ROUTER_INFO_BW_OB_1S] = &I2PControlService::OutboundBandwidth1S ;
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// RouterManager
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m_RouterManagerHandlers[I2P_CONTROL_ROUTER_MANAGER_SHUTDOWN] = &I2PControlService::ShutdownHandler;
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m_RouterManagerHandlers[I2P_CONTROL_ROUTER_MANAGER_SHUTDOWN_GRACEFUL] = &I2PControlService::ShutdownGracefulHandler;
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m_RouterManagerHandlers[I2P_CONTROL_ROUTER_MANAGER_RESEED] = &I2PControlService::ReseedHandler;
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}
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I2PControlService::~I2PControlService ()
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{
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Stop ();
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}
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void I2PControlService::Start ()
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{
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if (!m_IsRunning)
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{
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Accept ();
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m_IsRunning = true;
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m_Thread = new std::thread (std::bind (&I2PControlService::Run, this));
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}
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}
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void I2PControlService::Stop ()
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{
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if (m_IsRunning)
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{
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m_IsRunning = false;
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m_Acceptor.cancel ();
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m_Service.stop ();
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if (m_Thread)
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{
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m_Thread->join ();
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delete m_Thread;
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m_Thread = nullptr;
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}
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}
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}
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void I2PControlService::Run ()
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{
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while (m_IsRunning)
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{
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try
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{
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m_Service.run ();
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}
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catch (std::exception& ex)
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{
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LogPrint (eLogError, "I2PControl: ", ex.what ());
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}
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}
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}
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void I2PControlService::Accept ()
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{
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auto newSocket = std::make_shared<ssl_socket> (m_Service, m_SSLContext);
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m_Acceptor.async_accept (newSocket->lowest_layer(), std::bind (&I2PControlService::HandleAccept, this,
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std::placeholders::_1, newSocket));
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}
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void I2PControlService::HandleAccept(const boost::system::error_code& ecode, std::shared_ptr<ssl_socket> socket)
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{
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if (ecode != boost::asio::error::operation_aborted)
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Accept ();
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if (!ecode)
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{
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LogPrint (eLogInfo, "New I2PControl request from ", socket->lowest_layer ().remote_endpoint ());
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Handshake (socket);
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}
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else
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LogPrint (eLogError, "I2PControl accept error: ", ecode.message ());
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}
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void I2PControlService::Handshake (std::shared_ptr<ssl_socket> socket)
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{
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socket->async_handshake(boost::asio::ssl::stream_base::server,
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std::bind( &I2PControlService::HandleHandshake, this, std::placeholders::_1, socket));
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}
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void I2PControlService::HandleHandshake (const boost::system::error_code& ecode, std::shared_ptr<ssl_socket> socket)
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{
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if (!ecode)
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{
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//std::this_thread::sleep_for (std::chrono::milliseconds(5));
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ReadRequest (socket);
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}
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else
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LogPrint (eLogError, "I2PControl handshake error: ", ecode.message ());
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}
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void I2PControlService::ReadRequest (std::shared_ptr<ssl_socket> socket)
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{
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auto request = std::make_shared<I2PControlBuffer>();
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socket->async_read_some (
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#if BOOST_VERSION >= 104900
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boost::asio::buffer (*request),
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#else
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boost::asio::buffer (request->data (), request->size ()),
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#endif
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std::bind(&I2PControlService::HandleRequestReceived, this,
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std::placeholders::_1, std::placeholders::_2, socket, request));
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}
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void I2PControlService::HandleRequestReceived (const boost::system::error_code& ecode,
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size_t bytes_transferred, std::shared_ptr<ssl_socket> socket,
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std::shared_ptr<I2PControlBuffer> buf)
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{
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if (ecode)
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{
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LogPrint (eLogError, "I2PControl read error: ", ecode.message ());
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}
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else
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{
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try
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{
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bool isHtml = !memcmp (buf->data (), "POST", 4);
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std::stringstream ss;
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ss.write (buf->data (), bytes_transferred);
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if (isHtml)
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{
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std::string header;
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size_t contentLength = 0;
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while (!ss.eof () && header != "\r")
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{
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std::getline(ss, header);
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auto colon = header.find (':');
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if (colon != std::string::npos && header.substr (0, colon) == "Content-Length")
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contentLength = std::stoi (header.substr (colon + 1));
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}
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if (ss.eof ())
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{
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LogPrint (eLogError, "Malformed I2PControl request. HTTP header expected");
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return; // TODO:
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}
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std::streamoff rem = contentLength + ss.tellg () - bytes_transferred; // more bytes to read
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if (rem > 0)
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{
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bytes_transferred = boost::asio::read (*socket, boost::asio::buffer (buf->data (), rem));
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ss.write (buf->data (), bytes_transferred);
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}
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}
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#if GCC47_BOOST149
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LogPrint (eLogError, "json_read is not supported due bug in boost 1.49 with gcc 4.7");
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#else
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boost::property_tree::ptree pt;
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boost::property_tree::read_json (ss, pt);
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std::string method = pt.get<std::string>(I2P_CONTROL_PROPERTY_METHOD);
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auto it = m_MethodHandlers.find (method);
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if (it != m_MethodHandlers.end ())
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{
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std::ostringstream response;
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response << "{\"id\":" << pt.get<std::string>(I2P_CONTROL_PROPERTY_ID) << ",\"result\":{";
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(this->*(it->second))(pt.get_child (I2P_CONTROL_PROPERTY_PARAMS), response);
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response << "},\"jsonrpc\":\"2.0\"}";
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SendResponse (socket, buf, response, isHtml);
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}
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else
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LogPrint (eLogWarning, "Unknown I2PControl method ", method);
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#endif
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}
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catch (std::exception& ex)
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{
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LogPrint (eLogError, "I2PControl handle request: ", ex.what ());
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}
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catch (...)
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{
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LogPrint (eLogError, "I2PControl handle request unknown exception");
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}
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}
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}
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void I2PControlService::InsertParam (std::ostringstream& ss, const std::string& name, int value) const
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{
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ss << "\"" << name << "\":" << value;
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}
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void I2PControlService::InsertParam (std::ostringstream& ss, const std::string& name, const std::string& value) const
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{
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ss << "\"" << name << "\":";
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if (value.length () > 0)
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ss << "\"" << value << "\"";
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else
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ss << "null";
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}
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void I2PControlService::InsertParam (std::ostringstream& ss, const std::string& name, double value) const
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{
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ss << "\"" << name << "\":" << std::fixed << std::setprecision(2) << value;
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}
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void I2PControlService::SendResponse (std::shared_ptr<ssl_socket> socket,
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std::shared_ptr<I2PControlBuffer> buf, std::ostringstream& response, bool isHtml)
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{
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size_t len = response.str ().length (), offset = 0;
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if (isHtml)
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{
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std::ostringstream header;
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header << "HTTP/1.1 200 OK\r\n";
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header << "Connection: close\r\n";
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header << "Content-Length: " << boost::lexical_cast<std::string>(len) << "\r\n";
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header << "Content-Type: application/json\r\n";
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header << "Date: ";
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auto facet = new boost::local_time::local_time_facet ("%a, %d %b %Y %H:%M:%S GMT");
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header.imbue(std::locale (header.getloc(), facet));
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header << boost::posix_time::second_clock::local_time() << "\r\n";
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header << "\r\n";
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offset = header.str ().size ();
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memcpy (buf->data (), header.str ().c_str (), offset);
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}
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memcpy (buf->data () + offset, response.str ().c_str (), len);
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boost::asio::async_write (*socket, boost::asio::buffer (buf->data (), offset + len),
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boost::asio::transfer_all (),
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std::bind(&I2PControlService::HandleResponseSent, this,
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std::placeholders::_1, std::placeholders::_2, socket, buf));
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}
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void I2PControlService::HandleResponseSent (const boost::system::error_code& ecode, std::size_t bytes_transferred,
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std::shared_ptr<ssl_socket> socket, std::shared_ptr<I2PControlBuffer> buf)
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{
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if (ecode)
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LogPrint (eLogError, "I2PControl write error: ", ecode.message ());
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}
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// handlers
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void I2PControlService::AuthenticateHandler (const boost::property_tree::ptree& params, std::ostringstream& results)
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{
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int api = params.get<int> (I2P_CONTROL_PARAM_API);
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auto password = params.get<std::string> (I2P_CONTROL_PARAM_PASSWORD);
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LogPrint (eLogDebug, "I2PControl Authenticate API=", api, " Password=", password);
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if (password != m_Password)
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LogPrint (eLogError, "I2PControl Authenticate Invalid password ", password, " expected ", m_Password);
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InsertParam (results, I2P_CONTROL_PARAM_API, api);
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results << ",";
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std::string token = boost::lexical_cast<std::string>(i2p::util::GetSecondsSinceEpoch ());
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m_Tokens.insert (token);
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InsertParam (results, I2P_CONTROL_PARAM_TOKEN, token);
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}
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void I2PControlService::EchoHandler (const boost::property_tree::ptree& params, std::ostringstream& results)
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{
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auto echo = params.get<std::string> (I2P_CONTROL_PARAM_ECHO);
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LogPrint (eLogDebug, "I2PControl Echo Echo=", echo);
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InsertParam (results, I2P_CONTROL_PARAM_RESULT, echo);
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}
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// I2PControl
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void I2PControlService::I2PControlHandler (const boost::property_tree::ptree& params, std::ostringstream& results)
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{
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LogPrint (eLogDebug, "I2PControl I2PControl");
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for (auto& it: params)
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{
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LogPrint (eLogDebug, it.first);
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auto it1 = m_I2PControlHandlers.find (it.first);
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if (it1 != m_I2PControlHandlers.end ())
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{
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(this->*(it1->second))(it.second.data ());
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InsertParam (results, it.first, "");
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}
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else
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LogPrint (eLogError, "I2PControl I2PControl unknown request ", it.first);
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}
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}
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void I2PControlService::PasswordHandler (const std::string& value)
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{
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LogPrint (eLogDebug, "I2PControl: new password=", value, ", to make it persistent you should update your config!");
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m_Password = value;
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m_Tokens.clear ();
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}
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// RouterInfo
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void I2PControlService::RouterInfoHandler (const boost::property_tree::ptree& params, std::ostringstream& results)
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{
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LogPrint (eLogDebug, "I2PControl RouterInfo");
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for (auto it = params.begin (); it != params.end (); it++)
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{
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LogPrint (eLogDebug, it->first);
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auto it1 = m_RouterInfoHandlers.find (it->first);
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if (it1 != m_RouterInfoHandlers.end ())
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{
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if (it != params.begin ()) results << ",";
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(this->*(it1->second))(results);
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}
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else
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LogPrint (eLogError, "I2PControl RouterInfo unknown request ", it->first);
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}
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}
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void I2PControlService::UptimeHandler (std::ostringstream& results)
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{
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InsertParam (results, I2P_CONTROL_ROUTER_INFO_UPTIME, (int)i2p::context.GetUptime ()*1000);
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}
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void I2PControlService::VersionHandler (std::ostringstream& results)
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{
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InsertParam (results, I2P_CONTROL_ROUTER_INFO_VERSION, VERSION);
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}
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void I2PControlService::StatusHandler (std::ostringstream& results)
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{
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InsertParam (results, I2P_CONTROL_ROUTER_INFO_STATUS, "???"); // TODO:
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}
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void I2PControlService::NetDbKnownPeersHandler (std::ostringstream& results)
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{
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InsertParam (results, I2P_CONTROL_ROUTER_INFO_NETDB_KNOWNPEERS, i2p::data::netdb.GetNumRouters ());
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}
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void I2PControlService::NetDbActivePeersHandler (std::ostringstream& results)
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{
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InsertParam (results, I2P_CONTROL_ROUTER_INFO_NETDB_ACTIVEPEERS, (int)i2p::transport::transports.GetPeers ().size ());
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}
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void I2PControlService::NetStatusHandler (std::ostringstream& results)
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{
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InsertParam (results, I2P_CONTROL_ROUTER_INFO_NET_STATUS, (int)i2p::context.GetStatus ());
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}
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void I2PControlService::TunnelsParticipatingHandler (std::ostringstream& results)
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{
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InsertParam (results, I2P_CONTROL_ROUTER_INFO_TUNNELS_PARTICIPATING, (int)i2p::tunnel::tunnels.GetTransitTunnels ().size ());
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}
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void I2PControlService::InboundBandwidth1S (std::ostringstream& results)
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{
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InsertParam (results, I2P_CONTROL_ROUTER_INFO_BW_IB_1S, (double)i2p::transport::transports.GetInBandwidth ());
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}
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void I2PControlService::OutboundBandwidth1S (std::ostringstream& results)
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{
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InsertParam (results, I2P_CONTROL_ROUTER_INFO_BW_OB_1S, (double)i2p::transport::transports.GetOutBandwidth ());
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}
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// RouterManager
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void I2PControlService::RouterManagerHandler (const boost::property_tree::ptree& params, std::ostringstream& results)
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{
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LogPrint (eLogDebug, "I2PControl RouterManager");
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for (auto it = params.begin (); it != params.end (); it++)
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{
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if (it != params.begin ()) results << ",";
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LogPrint (eLogDebug, it->first);
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auto it1 = m_RouterManagerHandlers.find (it->first);
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if (it1 != m_RouterManagerHandlers.end ())
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(this->*(it1->second))(results);
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else
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LogPrint (eLogError, "I2PControl RouterManager unknown request ", it->first);
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}
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}
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void I2PControlService::ShutdownHandler (std::ostringstream& results)
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{
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LogPrint (eLogInfo, "Shutdown requested");
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InsertParam (results, I2P_CONTROL_ROUTER_MANAGER_SHUTDOWN, "");
|
|
m_ShutdownTimer.expires_from_now (boost::posix_time::seconds(1)); // 1 second to make sure response has been sent
|
|
m_ShutdownTimer.async_wait (
|
|
[](const boost::system::error_code& ecode)
|
|
{
|
|
Daemon.running = 0;
|
|
});
|
|
}
|
|
|
|
void I2PControlService::ShutdownGracefulHandler (std::ostringstream& results)
|
|
{
|
|
i2p::context.SetAcceptsTunnels (false);
|
|
int timeout = i2p::tunnel::tunnels.GetTransitTunnelsExpirationTimeout ();
|
|
LogPrint (eLogInfo, "Graceful shutdown requested. Will shutdown after ", timeout, " seconds");
|
|
InsertParam (results, I2P_CONTROL_ROUTER_MANAGER_SHUTDOWN_GRACEFUL, "");
|
|
m_ShutdownTimer.expires_from_now (boost::posix_time::seconds(timeout + 1)); // + 1 second
|
|
m_ShutdownTimer.async_wait (
|
|
[](const boost::system::error_code& ecode)
|
|
{
|
|
Daemon.running = 0;
|
|
});
|
|
}
|
|
|
|
void I2PControlService::ReseedHandler (std::ostringstream& results)
|
|
{
|
|
LogPrint (eLogInfo, "Reseed requested");
|
|
InsertParam (results, I2P_CONTROL_ROUTER_MANAGER_SHUTDOWN, "");
|
|
i2p::data::netdb.Reseed ();
|
|
}
|
|
|
|
// network setting
|
|
void I2PControlService::NetworkSettingHandler (const boost::property_tree::ptree& params, std::ostringstream& results)
|
|
{
|
|
LogPrint (eLogDebug, "I2PControl NetworkSetting");
|
|
for (auto it = params.begin (); it != params.end (); it++)
|
|
{
|
|
if (it != params.begin ()) results << ",";
|
|
LogPrint (eLogDebug, it->first);
|
|
auto it1 = m_NetworkSettingHandlers.find (it->first);
|
|
if (it1 != m_NetworkSettingHandlers.end ())
|
|
(this->*(it1->second))(it->second.data (), results);
|
|
else
|
|
LogPrint (eLogError, "I2PControl NetworkSetting unknown request ", it->first);
|
|
}
|
|
}
|
|
|
|
// certificate
|
|
void I2PControlService::CreateCertificate ()
|
|
{
|
|
EVP_PKEY * pkey = EVP_PKEY_new ();
|
|
RSA * rsa = RSA_new ();
|
|
BIGNUM * e = BN_dup (i2p::crypto::GetRSAE ());
|
|
RSA_generate_key_ex (rsa, 4096, e, NULL);
|
|
BN_free (e);
|
|
if (rsa)
|
|
{
|
|
EVP_PKEY_assign_RSA (pkey, rsa);
|
|
X509 * x509 = X509_new ();
|
|
ASN1_INTEGER_set (X509_get_serialNumber (x509), 1);
|
|
X509_gmtime_adj (X509_get_notBefore (x509), 0);
|
|
X509_gmtime_adj (X509_get_notAfter (x509), I2P_CONTROL_CERTIFICATE_VALIDITY*24*60*60); // expiration
|
|
X509_set_pubkey (x509, pkey); // public key
|
|
X509_NAME * name = X509_get_subject_name (x509);
|
|
X509_NAME_add_entry_by_txt (name, "C", MBSTRING_ASC, (unsigned char *)"RU", -1, -1, 0); // country (Russia by default)
|
|
X509_NAME_add_entry_by_txt (name, "O", MBSTRING_ASC, (unsigned char *)I2P_CONTROL_CERTIFICATE_ORGANIZATION, -1, -1, 0); // organization
|
|
X509_NAME_add_entry_by_txt (name, "CN", MBSTRING_ASC, (unsigned char *)I2P_CONTROL_CERTIFICATE_COMMON_NAME, -1, -1, 0); // common name
|
|
X509_set_issuer_name (x509, name); // set issuer to ourselves
|
|
X509_sign (x509, pkey, EVP_sha1 ()); // sign
|
|
// save key and certificate
|
|
// keys
|
|
auto filename = GetPath () / I2P_CONTROL_KEY_FILE;
|
|
FILE * f= fopen (filename.string ().c_str (), "wb");
|
|
if (f)
|
|
{
|
|
PEM_write_PrivateKey (f, pkey, NULL, NULL, 0, NULL, NULL);
|
|
fclose (f);
|
|
}
|
|
else
|
|
LogPrint (eLogError, "Can't open file ", filename);
|
|
// certificate
|
|
filename = GetPath () / I2P_CONTROL_CERT_FILE;
|
|
f= fopen (filename.string ().c_str (), "wb");
|
|
if (f)
|
|
{
|
|
PEM_write_X509 (f, x509);
|
|
fclose (f);
|
|
}
|
|
else
|
|
LogPrint (eLogError, "Can't open file ", filename);
|
|
|
|
X509_free (x509);
|
|
}
|
|
else
|
|
LogPrint (eLogError, "Couldn't create RSA key for certificate");
|
|
EVP_PKEY_free (pkey);
|
|
}
|
|
|
|
}
|
|
}
|