I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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#ifndef BOB_H__
#define BOB_H__
#include <inttypes.h>
#include <thread>
#include <memory>
#include <map>
#include <string>
#include <boost/asio.hpp>
#include "I2PTunnel.h"
#include "Identity.h"
#include "LeaseSet.h"
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namespace i2p
{
namespace client
{
const size_t BOB_COMMAND_BUFFER_SIZE = 1024;
const char BOB_COMMAND_ZAP[] = "zap";
const char BOB_COMMAND_QUIT[] = "quit";
const char BOB_COMMAND_START[] = "start";
const char BOB_COMMAND_STOP[] = "stop";
const char BOB_COMMAND_SETNICK[] = "setnick";
const char BOB_COMMAND_GETNICK[] = "getnick";
const char BOB_COMMAND_NEWKEYS[] = "newkeys";
const char BOB_COMMAND_GETKEYS[] = "getkeys";
const char BOB_COMMAND_SETKEYS[] = "setkeys";
const char BOB_COMMAND_GETDEST[] = "getdest";
const char BOB_COMMAND_OUTHOST[] = "outhost";
const char BOB_COMMAND_OUTPORT[] = "outport";
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const char BOB_COMMAND_INHOST[] = "inhost";
const char BOB_COMMAND_INPORT[] = "inport";
const char BOB_REPLY_OK[] = "OK %s\n";
const char BOB_REPLY_ERROR[] = "ERROR %s\n";
class BOBI2PInboundTunnel: public I2PTunnel
{
public:
BOBI2PInboundTunnel (boost::asio::io_service& service, int port, ClientDestination * localDestination);
~BOBI2PInboundTunnel ();
void Start ();
void Stop ();
private:
void Accept ();
void HandleAccept (const boost::system::error_code& ecode, boost::asio::ip::tcp::socket * socket);
void ReceiveAddress (boost::asio::ip::tcp::socket * socket);
void HandleReceivedAddress (const boost::system::error_code& ecode, std::size_t bytes_transferred,
boost::asio::ip::tcp::socket * socket);
void HandleDestinationRequestTimer (const boost::system::error_code& ecode, boost::asio::ip::tcp::socket * socket, i2p::data::IdentHash ident);
void CreateConnection (boost::asio::ip::tcp::socket * socket, const i2p::data::LeaseSet * leaseSet);
private:
boost::asio::ip::tcp::acceptor m_Acceptor;
boost::asio::deadline_timer m_Timer;
char m_ReceiveBuffer[BOB_COMMAND_BUFFER_SIZE + 1]; // for destination base64 address
uint8_t * m_ReceivedData;
size_t m_ReceivedDataLen;
};
class BOBCommandChannel;
class BOBCommandSession: public std::enable_shared_from_this<BOBCommandSession>
{
public:
BOBCommandSession (BOBCommandChannel& owner);
~BOBCommandSession ();
void Terminate ();
boost::asio::ip::tcp::socket& GetSocket () { return m_Socket; };
void Receive ();
// command handlers
void ZapCommandHandler (const char * operand, size_t len);
void QuitCommandHandler (const char * operand, size_t len);
void StartCommandHandler (const char * operand, size_t len);
void StopCommandHandler (const char * operand, size_t len);
void SetNickCommandHandler (const char * operand, size_t len);
void GetNickCommandHandler (const char * operand, size_t len);
void NewkeysCommandHandler (const char * operand, size_t len);
void SetkeysCommandHandler (const char * operand, size_t len);
void GetkeysCommandHandler (const char * operand, size_t len);
void GetdestCommandHandler (const char * operand, size_t len);
void OuthostCommandHandler (const char * operand, size_t len);
void OutportCommandHandler (const char * operand, size_t len);
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void InhostCommandHandler (const char * operand, size_t len);
void InportCommandHandler (const char * operand, size_t len);
private:
void HandleReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred);
void Send (size_t len);
void HandleSent (const boost::system::error_code& ecode, std::size_t bytes_transferred);
void SendReplyOK (const char * msg);
void SendReplyError (const char * msg);
private:
BOBCommandChannel& m_Owner;
boost::asio::ip::tcp::socket m_Socket;
char m_ReceiveBuffer[BOB_COMMAND_BUFFER_SIZE + 1], m_SendBuffer[BOB_COMMAND_BUFFER_SIZE + 1];
size_t m_ReceiveBufferOffset;
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bool m_IsOpen, m_IsOutbound;
std::string m_Nickname, m_Address;
int m_Port;
i2p::data::PrivateKeys m_Keys;
};
typedef void (BOBCommandSession::*BOBCommandHandler)(const char * operand, size_t len);
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class BOBCommandChannel
{
public:
BOBCommandChannel (int port);
~BOBCommandChannel ();
void Start ();
void Stop ();
boost::asio::io_service& GetService () { return m_Service; };
std::map<std::string, BOBCommandHandler>& GetCommandHandlers () { return m_CommandHandlers; };
void AddTunnel (const std::string& name, I2PTunnel * tunnel);
I2PTunnel * FindTunnel (const std::string& name);
private:
void Run ();
void Accept ();
void HandleAccept(const boost::system::error_code& ecode, std::shared_ptr<BOBCommandSession> session);
private:
bool m_IsRunning;
std::thread * m_Thread;
boost::asio::io_service m_Service;
boost::asio::ip::tcp::acceptor m_Acceptor;
std::map<std::string, I2PTunnel *> m_Tunnels;
std::map<std::string, BOBCommandHandler> m_CommandHandlers;
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};
}
}
#endif