monero/src/p2p/net_node_common.h

// Copyright (c) 2014-2018, The Monero Project
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
// 
// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
// 
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
// 
// 3. Neither the name of the copyright holder nor the names of its contributors may be
//    used to endorse or promote products derived from this software without specific
//    prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// 
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers

#pragma once

#include <boost/uuid/uuid.hpp>
#include "net/net_utils_base.h"
#include "p2p_protocol_defs.h"

namespace nodetool
{

  typedef boost::uuids::uuid uuid;
  typedef boost::uuids::uuid net_connection_id;

  template<class t_connection_context>
  struct i_p2p_endpoint
  {
    virtual bool relay_notify_to_list(int command, const std::string& data_buff, const std::list<boost::uuids::uuid>& connections)=0;
    virtual bool relay_notify_to_all(int command, const std::string& data_buff, const epee::net_utils::connection_context_base& context)=0;
    virtual bool invoke_command_to_peer(int command, const std::string& req_buff, std::string& resp_buff, const epee::net_utils::connection_context_base& context)=0;
    virtual bool invoke_notify_to_peer(int command, const std::string& req_buff, const epee::net_utils::connection_context_base& context)=0;
    virtual bool drop_connection(const epee::net_utils::connection_context_base& context)=0;
    virtual void request_callback(const epee::net_utils::connection_context_base& context)=0;
    virtual uint64_t get_connections_count()=0;
    virtual void for_each_connection(std::function<bool(t_connection_context&, peerid_type, uint32_t)> f)=0;
    virtual bool for_connection(const boost::uuids::uuid&, std::function<bool(t_connection_context&, peerid_type, uint32_t)> f)=0;
    virtual bool block_host(const epee::net_utils::network_address &address, time_t seconds = 0)=0;
    virtual bool unblock_host(const epee::net_utils::network_address &address)=0;
    virtual std::map<std::string, time_t> get_blocked_hosts()=0;
    virtual bool add_host_fail(const epee::net_utils::network_address &address)=0;
  };

  template<class t_connection_context>
  struct p2p_endpoint_stub: public i_p2p_endpoint<t_connection_context>
  {
    virtual bool relay_notify_to_list(int command, const std::string& data_buff, const std::list<boost::uuids::uuid>& connections)
    {
      return false;
    }
    virtual bool relay_notify_to_all(int command, const std::string& data_buff, const epee::net_utils::connection_context_base& context)
    {
      return false;
    }
    virtual bool invoke_command_to_peer(int command, const std::string& req_buff, std::string& resp_buff, const epee::net_utils::connection_context_base& context)
    {
      return false;
    }
    virtual bool invoke_notify_to_peer(int command, const std::string& req_buff, const epee::net_utils::connection_context_base& context)
    {
      return true;
    }
    virtual bool drop_connection(const epee::net_utils::connection_context_base& context)
    {
      return false;
    }
    virtual void request_callback(const epee::net_utils::connection_context_base& context)
    {

    }
    virtual void for_each_connection(std::function<bool(t_connection_context&,peerid_type,uint32_t)> f)
    {

    }
    virtual bool for_connection(const boost::uuids::uuid&, std::function<bool(t_connection_context&,peerid_type,uint32_t)> f)
    {
      return false;
    }

    virtual uint64_t get_connections_count()    
    {
      return false;
    }
    virtual bool block_host(const epee::net_utils::network_address &address, time_t seconds)
    {
      return true;
    }
    virtual bool unblock_host(const epee::net_utils::network_address &address)
    {
      return true;
    }
    virtual std::map<std::string, time_t> get_blocked_hosts()
    {
      return std::map<std::string, time_t>();
    }
    virtual bool add_host_fail(const epee::net_utils::network_address &address)
    {
      return true;
    }
  };
}