text: // Copyright (c) 2018-2018, The NERVA Project
  // Copyright (c) 2017-2018, The Masari Project
  // Copyright (c) 2014-2019, 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
  
  #include "version.h"
  #include "string_tools.h"
  #include "common/password.h"
  #include "common/scoped_message_writer.h"
  #include "daemon/rpc_command_executor.h"
  #include "rpc/core_rpc_server_commands_defs.h"
  #include "cryptonote_core/cryptonote_core.h"
  #include "cryptonote_basic/hardfork.h"
  #include <boost/format.hpp>
  #include <ctime>
  #include <string>
  
  #undef MONERO_DEFAULT_LOG_CATEGORY
  #define MONERO_DEFAULT_LOG_CATEGORY "daemon"
  
  namespace daemonize {
  
  namespace {
    void print_peer(std::string const & prefix, cryptonote::peer const & peer)
    {
      time_t now;
      time(&now);
      time_t last_seen = static_cast<time_t>(peer.last_seen);
  
      std::string id_str;
      std::string port_str;
      std::string elapsed = epee::misc_utils::get_time_interval_string(now - last_seen);
      std::string ip_str = epee::string_tools::get_ip_string_from_int32(peer.ip);
      std::stringstream peer_id_str;
      peer_id_str << std::hex << std::setw(16) << peer.id;
      peer_id_str >> id_str;
      epee::string_tools::xtype_to_string(peer.port, port_str);
      std::string addr_str = ip_str + ":" + port_str;
  	std::string rpc_port = peer.rpc_port ? std::to_string(peer.rpc_port) : "-";
      tools::msg_writer() << boost::format("%-10s %-25s %-25s %-5s %s") % prefix % id_str % addr_str % rpc_port % elapsed;
    }
  
    void print_block_header(cryptonote::block_header_response const & header)
    {
      tools::success_msg_writer()
        << "timestamp: " << boost::lexical_cast<std::string>(header.timestamp) << " (" << tools::get_human_readable_timestamp(header.timestamp) << ")" << std::endl
        << "previous hash: " << header.prev_hash << std::endl
        << "nonce: " << boost::lexical_cast<std::string>(header.nonce) << std::endl
        << "is orphan: " << header.orphan_status << std::endl
        << "height: " << boost::lexical_cast<std::string>(header.height) << std::endl
        << "depth: " << boost::lexical_cast<std::string>(header.depth) << std::endl
        << "hash: " << header.hash << std::endl
        << "difficulty: " << boost::lexical_cast<std::string>(header.difficulty) << std::endl
        << "block size: " << header.block_size << std::endl
        << "num txes: " << header.num_txes << std::endl
        << "reward: " << cryptonote::print_money(header.reward);
    }
  
    std::string get_human_time_ago(time_t t, time_t now)
    {
      if (t == now)
        return "now";
      time_t dt = t > now ? t - now : now - t;
      std::string s;
      if (dt < 90)
        s = boost::lexical_cast<std::string>(dt) + " seconds";
      else if (dt < 90 * 60)
        s = boost::lexical_cast<std::string>(dt/60) + " minutes";
      else if (dt < 36 * 3600)
        s = boost::lexical_cast<std::string>(dt/3600) + " hours";
      else
        s = boost::lexical_cast<std::string>(dt/(3600*24)) + " days";
      return s + " " + (t > now ? "in the future" : "ago");
    }
  
    std::string get_time_hms(time_t t)
    {
      unsigned int hours, minutes, seconds;
      char buffer[24];
      hours = t / 3600;
      t %= 3600;
      minutes = t / 60;
      t %= 60;
      seconds = t;
      snprintf(buffer, sizeof(buffer), "%02u:%02u:%02u", hours, minutes, seconds);
      return std::string(buffer);
    }
  
    std::string make_error(const std::string &base, const std::string &status)
    {
      if (status == CORE_RPC_STATUS_OK)
        return base;
      return base + " -- " + status;
    }
  }
  
  t_rpc_command_executor::t_rpc_command_executor(
      uint32_t ip
    , uint16_t port
    , const boost::optional<tools::login>& login
    , const epee::net_utils::ssl_options_t& ssl_options
    , bool is_rpc
    , cryptonote::core_rpc_server* rpc_server
    )
    : m_rpc_client(NULL), m_rpc_server(rpc_server)
  {
    if (is_rpc)
    {
      boost::optional<epee::net_utils::http::login> http_login{};
      if (login)
        http_login.emplace(login->username, login->password.password());
      m_rpc_client = new tools::t_rpc_client(ip, port, std::move(http_login), ssl_options);
    }
    else
    {
      if (rpc_server == NULL)
      {
        throw std::runtime_error("If not calling commands via RPC, rpc_server pointer must be non-null");
      }
    }
  
    m_is_rpc = is_rpc;
  }
  
  t_rpc_command_executor::~t_rpc_command_executor()
  {
    if (m_rpc_client != NULL)
    {
      delete m_rpc_client;
    }
  }
  
  bool t_rpc_command_executor::print_peer_list(bool white, bool gray, size_t limit) {
    cryptonote::COMMAND_RPC_GET_PEER_LIST::request req;
    cryptonote::COMMAND_RPC_GET_PEER_LIST::response res;
  
    std::string failure_message = "Couldn't retrieve peer list";
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/get_peer_list", failure_message.c_str()))
      {
        return false;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_peer_list(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << failure_message;
        return false;
      }
    }
  
    if (white)
    {
      auto peer = res.white_list.cbegin();
      const auto end = limit ? peer + std::min(limit, res.white_list.size()) : res.white_list.cend();
      for (; peer != end; ++peer)
      {
        print_peer("white", *peer);
      }
    }
  
    if (gray)
    {
      auto peer = res.gray_list.cbegin();
      const auto end = limit ? peer + std::min(limit, res.gray_list.size()) : res.gray_list.cend();
      for (; peer != end; ++peer)
      {
        print_peer("gray", *peer);
      }
    }
  
    return true;
  }
  
  bool t_rpc_command_executor::print_peer_list_stats() {
    cryptonote::COMMAND_RPC_GET_PEER_LIST::request req;
    cryptonote::COMMAND_RPC_GET_PEER_LIST::response res;
  
    std::string failure_message = "Couldn't retrieve peer list";
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/get_peer_list", failure_message.c_str()))
      {
        return false;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_peer_list(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << failure_message;
        return false;
      }
    }
  
    tools::msg_writer()
      << "White list size: " << res.white_list.size() << "/" << P2P_LOCAL_WHITE_PEERLIST_LIMIT << " (" << res.white_list.size() *  100.0 / P2P_LOCAL_WHITE_PEERLIST_LIMIT << "%)" << std::endl
      << "Gray list size: " << res.gray_list.size() << "/" << P2P_LOCAL_GRAY_PEERLIST_LIMIT << " (" << res.gray_list.size() *  100.0 / P2P_LOCAL_GRAY_PEERLIST_LIMIT << "%)";
  
    return true;
  }
  
  bool t_rpc_command_executor::save_blockchain() {
    cryptonote::COMMAND_RPC_SAVE_BC::request req;
    cryptonote::COMMAND_RPC_SAVE_BC::response res;
  
    std::string fail_message = "Couldn't save blockchain";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/save_bc", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_save_bc(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::success_msg_writer() << "Blockchain saved";
  
    return true;
  }
  
  bool t_rpc_command_executor::show_hash_rate() {
    cryptonote::COMMAND_RPC_SET_LOG_HASH_RATE::request req;
    cryptonote::COMMAND_RPC_SET_LOG_HASH_RATE::response res;
    req.visible = true;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/set_log_hash_rate", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_set_log_hash_rate(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
      }
    }
  
    tools::success_msg_writer() << "Hash rate logging is on";
  
    return true;
  }
  
  bool t_rpc_command_executor::hide_hash_rate() {
    cryptonote::COMMAND_RPC_SET_LOG_HASH_RATE::request req;
    cryptonote::COMMAND_RPC_SET_LOG_HASH_RATE::response res;
    req.visible = false;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/set_log_hash_rate", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_set_log_hash_rate(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::success_msg_writer() << "Hash rate logging is off";
  
    return true;
  }
  
  bool t_rpc_command_executor::show_difficulty() {
    cryptonote::COMMAND_RPC_GET_INFO::request req;
    cryptonote::COMMAND_RPC_GET_INFO::response res;
  
    std::string fail_message = "Problem fetching info";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/getinfo", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_info(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message.c_str(), res.status);
        return true;
      }
    }
  
    tools::success_msg_writer() <<   "BH: " << res.height
                                << ", TH: " << res.top_block_hash
                                << ", DIFF: " << res.difficulty
                                << ", HR: " << res.difficulty / res.target << " H/s";
  
    return true;
  }
  
  static std::string get_mining_speed(uint64_t hr)
  {
    if (hr>1e9) return (boost::format("%.2f GH/s") % (hr/1e9)).str();
    if (hr>1e6) return (boost::format("%.2f MH/s") % (hr/1e6)).str();
    if (hr>1e3) return (boost::format("%.2f kH/s") % (hr/1e3)).str();
    return (boost::format("%.0f H/s") % hr).str();
  }
  
  static std::string get_fork_extra_info(uint64_t t, uint64_t now, uint64_t block_time)
  {
    uint64_t blocks_per_day = 86400 / block_time;
  
    if (t == now)
      return " (forking now)";
  
    if (t > now)
    {
      uint64_t dblocks = t - now;
      if (dblocks <= 30)
        return (boost::format(" (next fork in %u blocks)") % (unsigned)dblocks).str();
      if (dblocks <= blocks_per_day / 2)
        return (boost::format(" (next fork in %.1f hours)") % (dblocks / (float)(blocks_per_day / 24))).str();
      if (dblocks <= blocks_per_day * 30)
        return (boost::format(" (next fork in %.1f days)") % (dblocks / (float)blocks_per_day)).str();
      return "";
    }
    return "";
  }
  
  static float get_sync_percentage(uint64_t height, uint64_t target_height)
  {
    target_height = target_height ? target_height < height ? height : target_height : height;
    float pc = 100.0f * height / target_height;
    if (height < target_height && pc > 99.9f)
      return 99.9f; // to avoid 100% when not fully synced
    return pc;
  }
  static float get_sync_percentage(const cryptonote::COMMAND_RPC_GET_INFO::response &ires)
  {
    return get_sync_percentage(ires.height, ires.target_height);
  }
  
  bool t_rpc_command_executor::show_status() {
    cryptonote::COMMAND_RPC_GET_INFO::request ireq;
    cryptonote::COMMAND_RPC_GET_INFO::response ires;
    cryptonote::COMMAND_RPC_HARD_FORK_INFO::request hfreq;
    cryptonote::COMMAND_RPC_HARD_FORK_INFO::response hfres;
    cryptonote::COMMAND_RPC_MINING_STATUS::request mreq;
    cryptonote::COMMAND_RPC_MINING_STATUS::response mres;
    epee::json_rpc::error error_resp;
    bool has_mining_info = true;
  
    std::string fail_message = "Problem fetching info";
  
    hfreq.version = 0;
    bool mining_busy = false;
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(ireq, ires, "/getinfo", fail_message.c_str()))
      {
        return true;
      }
      if (!m_rpc_client->json_rpc_request(hfreq, hfres, "hard_fork_info", fail_message.c_str()))
      {
        return true;
      }
      // mining info is only available non unrestricted RPC mode
      has_mining_info = m_rpc_client->rpc_request(mreq, mres, "/mining_status", fail_message.c_str());
    }
    else
    {
      if (!m_rpc_server->on_get_info(ireq, ires) || ires.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, ires.status);
        return true;
      }
      if (!m_rpc_server->on_hard_fork_info(hfreq, hfres, error_resp) || hfres.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, hfres.status);
        return true;
      }
      if (!m_rpc_server->on_mining_status(mreq, mres))
      {
        tools::fail_msg_writer() << fail_message.c_str();
        return true;
      }
  
      if (mres.status == CORE_RPC_STATUS_BUSY)
      {
        mining_busy = true;
      }
      else if (mres.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, mres.status);
        return true;
      }
    }
  
    uint64_t net_height = ires.target_height > ires.height ? ires.target_height : ires.height;
    std::string bootstrap_msg;
    if (ires.was_bootstrap_ever_used)
    {
      bootstrap_msg = ", bootstrapping from " + ires.bootstrap_daemon_address;
      if (ires.untrusted)
      {
        bootstrap_msg += (boost::format(", local height: %llu (%.1f%%)") % ires.height_without_bootstrap % get_sync_percentage(ires.height_without_bootstrap, net_height)).str();
      }
      else
      {
        bootstrap_msg += " was used before";
      }
    }
  
    tools::success_msg_writer() << boost::format("Height: %llu/%llu (%.1f%%) on %s%s, software version %s, %s, net hash %s, v%u%s, %u(out)+%u(in) connections")
      % (unsigned long long)ires.height
      % (unsigned long long)net_height
      % get_sync_percentage(ires)
      % (ires.testnet ? "testnet" : ires.stagenet ? "stagenet" : "mainnet")
      % bootstrap_msg
      % MONERO_VERSION_FULL
      % (!has_mining_info ? "mining info unavailable" : mining_busy ? "syncing" : mres.active ? ( ( mres.is_background_mining_enabled ? "smart " : "" ) + std::string("mining at ") + get_mining_speed(mres.speed) ) : "not mining")
      % get_mining_speed(ires.difficulty / ires.target)
      % (unsigned)hfres.version
      % get_fork_extra_info(hfres.earliest_height, net_height, ires.target)
      % (unsigned)ires.outgoing_connections_count
      % (unsigned)ires.incoming_connections_count
    ;
  
    return true;
  }
  
  bool t_rpc_command_executor::mining_status() {
    cryptonote::COMMAND_RPC_MINING_STATUS::request mreq;
    cryptonote::COMMAND_RPC_MINING_STATUS::response mres;
    epee::json_rpc::error error_resp;
    bool has_mining_info = true;
  
    std::string fail_message = "Problem fetching info";
  
    bool mining_busy = false;
    if (m_is_rpc)
    {
      // mining info is only available non unrestricted RPC mode
      has_mining_info = m_rpc_client->rpc_request(mreq, mres, "/mining_status", fail_message.c_str());
    }
    else
    {
      if (!m_rpc_server->on_mining_status(mreq, mres))
      {
        tools::fail_msg_writer() << fail_message.c_str();
        return true;
      }
  
      if (mres.status == CORE_RPC_STATUS_BUSY)
      {
        mining_busy = true;
      }
      else if (mres.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, mres.status);
        return true;
      }
    }
  
    if (!has_mining_info)
    {
      tools::fail_msg_writer() << "Mining info unavailable";
      return true;
    }
  
    if (mining_busy || !mres.active)
    {
      tools::msg_writer() << "Not currently mining";
    }
    else
    {
      tools::msg_writer() << "Mining at " << get_mining_speed(mres.speed) << " with " << mres.threads_count << " threads";
    }
  
    if (mres.active || mres.is_background_mining_enabled)
    {
      tools::msg_writer() << "Mining address: " << mres.address;
    }
  
    if (mres.is_background_mining_enabled)
    {
      tools::msg_writer() << "Smart mining enabled:";
      tools::msg_writer() << "  Target: " << (unsigned)mres.bg_target << "% CPU";
      tools::msg_writer() << "  Idle threshold: " << (unsigned)mres.bg_idle_threshold << "% CPU";
      tools::msg_writer() << "  Min idle time: " << (unsigned)mres.bg_min_idle_seconds << " seconds";
      tools::msg_writer() << "  Ignore battery: " << (mres.bg_ignore_battery ? "yes" : "no");
    }
  
    if (!mining_busy && mres.active && mres.speed > 0 && mres.block_target > 0 && mres.difficulty > 0)
    {
      double ratio = mres.speed * mres.block_target / (double)mres.difficulty;
      uint64_t daily = 86400ull / mres.block_target * mres.block_reward;
      uint64_t monthly = 86400ull / mres.block_target * 30.5 * mres.block_reward;
      uint64_t yearly = 86400ull / mres.block_target * 356 * mres.block_reward;
      tools::msg_writer() << "Expected: " << cryptonote::print_money(daily) << " amit daily, "
          << cryptonote::print_money(monthly) << " amit monthly, " << cryptonote::print_money(yearly) << " yearly";
    }
  
    return true;
  }
  
  bool t_rpc_command_executor::print_connections() {
    cryptonote::COMMAND_RPC_GET_CONNECTIONS::request req;
    cryptonote::COMMAND_RPC_GET_CONNECTIONS::response res;
    epee::json_rpc::error error_resp;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->json_rpc_request(req, res, "get_connections", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_connections(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::msg_writer() << std::setw(30) << std::left << "Remote Host"
        << std::setw(6) << "SSL"
        << std::setw(20) << "Peer id"
        << std::setw(20) << "Support Flags"      
        << std::setw(30) << "Recv/Sent (inactive,sec)"
        << std::setw(25) << "State"
        << std::setw(20) << "Livetime(sec)"
        << std::setw(12) << "Down (kB/s)"
        << std::setw(14) << "Down(now)"
        << std::setw(10) << "Up (kB/s)" 
        << std::setw(13) << "Up(now)"
        << std::endl;
  
    for (auto & info : res.connections)
    {
      std::string address = info.incoming ? "INC " : "OUT ";
      address += info.ip + ":" + info.port;
      //std::string in_out = info.incoming ? "INC " : "OUT ";
      tools::msg_writer() 
       //<< std::setw(30) << std::left << in_out
       << std::setw(30) << std::left << address
       << std::setw(6) << (info.ssl ? "yes" : "no")
       << std::setw(20) << epee::string_tools::pad_string(info.peer_id, 16, '0', true)
       << std::setw(20) << info.support_flags
       << std::setw(30) << std::to_string(info.recv_count) + "("  + std::to_string(info.recv_idle_time) + ")/" + std::to_string(info.send_count) + "(" + std::to_string(info.send_idle_time) + ")"
       << std::setw(25) << info.state
       << std::setw(20) << info.live_time
       << std::setw(12) << info.avg_download
       << std::setw(14) << info.current_download
       << std::setw(10) << info.avg_upload
       << std::setw(13) << info.current_upload
       
       << std::left << (info.localhost ? "[LOCALHOST]" : "")
       << std::left << (info.local_ip ? "[LAN]" : "");
      //tools::msg_writer() << boost::format("%-25s peer_id: %-25s %s") % address % info.peer_id % in_out;
      
    }
  
    return true;
  }
  
  bool t_rpc_command_executor::print_net_stats()
  {
    cryptonote::COMMAND_RPC_GET_NET_STATS::request net_stats_req;
    cryptonote::COMMAND_RPC_GET_NET_STATS::response net_stats_res;
    cryptonote::COMMAND_RPC_GET_LIMIT::request limit_req;
    cryptonote::COMMAND_RPC_GET_LIMIT::response limit_res;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->json_rpc_request(net_stats_req, net_stats_res, "get_net_stats", fail_message.c_str()))
      {
        return true;
      }
      if (!m_rpc_client->json_rpc_request(limit_req, limit_res, "get_limit", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_net_stats(net_stats_req, net_stats_res) || net_stats_res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, net_stats_res.status);
        return true;
      }
      if (!m_rpc_server->on_get_limit(limit_req, limit_res) || limit_res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, limit_res.status);
        return true;
      }
    }
  
    uint64_t limit = limit_res.limit_down * 1024;   // convert to bytes, as limits are always kB/s
    tools::success_msg_writer() << boost::format("Received %u bytes (%s) in %u packets, limit of %s/s")
      % net_stats_res.total_bytes_in
      % tools::get_human_readable_bytes(net_stats_res.total_bytes_in)
      % net_stats_res.total_packets_in
      % tools::get_human_readable_bytes(limit);
  
    limit = limit_res.limit_up * 1024;
    tools::success_msg_writer() << boost::format("Sent %u bytes (%s) in %u packets, limit of %s/s")
      % net_stats_res.total_bytes_out
      % tools::get_human_readable_bytes(net_stats_res.total_bytes_out)
      % net_stats_res.total_packets_out
      % tools::get_human_readable_bytes(limit);
  
    return true;
  }
  
  bool t_rpc_command_executor::print_blockchain_info(uint64_t start_block_index, uint64_t end_block_index) {
    cryptonote::COMMAND_RPC_GET_BLOCK_HEADERS_RANGE::request req;
    cryptonote::COMMAND_RPC_GET_BLOCK_HEADERS_RANGE::response res;
    epee::json_rpc::error error_resp;
  
    req.start_height = start_block_index;
    req.end_height = end_block_index;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->json_rpc_request(req, res, "getblockheadersrange", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_block_headers_range(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    bool first = true;
    for (auto & header : res.headers)
    {
      if (!first)
        tools::msg_writer() << "" << std::endl;
      tools::msg_writer()
        << "height: " << header.height << ", timestamp: " << header.timestamp << " (" << tools::get_human_readable_timestamp(header.timestamp) << ")"
        << ", size: " << header.block_size << ", transactions: " << header.num_txes << std::endl
        << "major version: " << (unsigned)header.major_version << ", minor version: " << (unsigned)header.minor_version << std::endl
        << "block id: " << header.hash << ", previous block id: " << header.prev_hash << std::endl
        << "difficulty: " << header.difficulty << ", nonce " << header.nonce << ", reward " << cryptonote::print_money(header.reward) << std::endl;
      first = false;
    }
  
    return true;
  }
  
  bool t_rpc_command_executor::set_log_level(int8_t level) {
    cryptonote::COMMAND_RPC_SET_LOG_LEVEL::request req;
    cryptonote::COMMAND_RPC_SET_LOG_LEVEL::response res;
    req.level = level;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/set_log_level", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_set_log_level(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::success_msg_writer() << "Log level is now " << std::to_string(level);
  
    return true;
  }
  
  bool t_rpc_command_executor::set_log_categories(const std::string &categories) {
    cryptonote::COMMAND_RPC_SET_LOG_CATEGORIES::request req;
    cryptonote::COMMAND_RPC_SET_LOG_CATEGORIES::response res;
    req.categories = categories;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/set_log_categories", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_set_log_categories(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::success_msg_writer() << "Log categories are now " << res.categories;
  
    return true;
  }
  
  bool t_rpc_command_executor::print_height() {
    cryptonote::COMMAND_RPC_GET_HEIGHT::request req;
    cryptonote::COMMAND_RPC_GET_HEIGHT::response res;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/getheight", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_height(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::success_msg_writer() << boost::lexical_cast<std::string>(res.height);
  
    return true;
  }
  
  bool t_rpc_command_executor::print_block_by_hash(crypto::hash block_hash, bool include_hex) {
    cryptonote::COMMAND_RPC_GET_BLOCK::request req;
    cryptonote::COMMAND_RPC_GET_BLOCK::response res;
    epee::json_rpc::error error_resp;
  
    req.hash = epee::string_tools::pod_to_hex(block_hash);
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->json_rpc_request(req, res, "getblock", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_block(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    if (include_hex)
      tools::success_msg_writer() << res.blob << std::endl;
    print_block_header(res.block_header);
    tools::success_msg_writer() << res.json << ENDL;
  
    return true;
  }
  
  bool t_rpc_command_executor::print_block_by_height(uint64_t height, bool include_hex) {
    cryptonote::COMMAND_RPC_GET_BLOCK::request req;
    cryptonote::COMMAND_RPC_GET_BLOCK::response res;
    epee::json_rpc::error error_resp;
  
    req.height = height;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->json_rpc_request(req, res, "getblock", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_block(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    if (include_hex)
      tools::success_msg_writer() << res.blob << std::endl;
    print_block_header(res.block_header);
    tools::success_msg_writer() << res.json << ENDL;
  
    return true;
  }
  
  bool t_rpc_command_executor::print_transaction(crypto::hash transaction_hash,
    bool include_hex,
    bool include_json) {
    cryptonote::COMMAND_RPC_GET_TRANSACTIONS::request req;
    cryptonote::COMMAND_RPC_GET_TRANSACTIONS::response res;
  
    std::string fail_message = "Problem fetching transaction";
  
    req.txs_hashes.push_back(epee::string_tools::pod_to_hex(transaction_hash));
    req.decode_as_json = false;
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/gettransactions", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_transactions(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    if (1 == res.txs.size() || 1 == res.txs_as_hex.size())
    {
      if (1 == res.txs.size())
      {
        // only available for new style answers
        if (res.txs.front().in_pool)
          tools::success_msg_writer() << "Found in pool";
        else
          tools::success_msg_writer() << "Found in blockchain at height " << res.txs.front().block_height;
      }
  
      const std::string &as_hex = (1 == res.txs.size()) ? res.txs.front().as_hex : res.txs_as_hex.front();
      // Print raw hex if requested
      if (include_hex)
        tools::success_msg_writer() << as_hex << std::endl;
  
      // Print json if requested
      if (include_json)
      {
        crypto::hash tx_hash;
        cryptonote::transaction tx;
        cryptonote::blobdata blob;
        if (!string_tools::parse_hexstr_to_binbuff(as_hex, blob))
        {
          tools::fail_msg_writer() << "Failed to parse tx to get json format";
        }
        else
        {
          if (!cryptonote::parse_and_validate_tx_from_blob(blob, tx, tx_hash))
          {
            tools::fail_msg_writer() << "Failed to parse tx blob to get json format";
          }
          else
          {
            tools::success_msg_writer() << cryptonote::obj_to_json_str(tx) << std::endl;
          }
        }
      }
    }
    else
    {
      tools::fail_msg_writer() << "Transaction wasn't found: " << transaction_hash << std::endl;
    }
  
    return true;
  }
  
  bool t_rpc_command_executor::is_key_image_spent(const crypto::key_image &ki) {
    cryptonote::COMMAND_RPC_IS_KEY_IMAGE_SPENT::request req;
    cryptonote::COMMAND_RPC_IS_KEY_IMAGE_SPENT::response res;
  
    std::string fail_message = "Problem checking key image";
  
    req.key_images.push_back(epee::string_tools::pod_to_hex(ki));
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/is_key_image_spent", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_is_key_image_spent(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    if (1 == res.spent_status.size())
    {
      // first as hex
      tools::success_msg_writer() << ki << ": " << (res.spent_status.front() ? "spent" : "unspent") << (res.spent_status.front() == cryptonote::COMMAND_RPC_IS_KEY_IMAGE_SPENT::SPENT_IN_POOL ? " (in pool)" : "");
    }
    else
    {
      tools::fail_msg_writer() << "key image status could not be determined" << std::endl;
    }
  
    return true;
  }
  
  bool t_rpc_command_executor::print_transaction_pool_long() {
    cryptonote::COMMAND_RPC_GET_TRANSACTION_POOL::request req;
    cryptonote::COMMAND_RPC_GET_TRANSACTION_POOL::response res;
  
    std::string fail_message = "Problem fetching transaction pool";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/get_transaction_pool", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_transaction_pool(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    if (res.transactions.empty() && res.spent_key_images.empty())
    {
      tools::msg_writer() << "Pool is empty" << std::endl;
    }
    if (! res.transactions.empty())
    {
      const time_t now = time(NULL);
      tools::msg_writer() << "Transactions: ";
      for (auto & tx_info : res.transactions)
      {
        tools::msg_writer() << "id: " << tx_info.id_hash << std::endl
                            << tx_info.tx_json << std::endl
                            << "blob_size: " << tx_info.blob_size << std::endl
                            << "fee: " << cryptonote::print_money(tx_info.fee) << std::endl
                            << "fee/byte: " << cryptonote::print_money(tx_info.fee / (double)tx_info.blob_size) << std::endl
                            << "receive_time: " << tx_info.receive_time << " (" << get_human_time_ago(tx_info.receive_time, now) << ")" << std::endl
                            << "relayed: " << [&](const cryptonote::tx_info &tx_info)->std::string { if (!tx_info.relayed) return "no"; return boost::lexical_cast<std::string>(tx_info.last_relayed_time) + " (" + get_human_time_ago(tx_info.last_relayed_time, now) + ")"; } (tx_info) << std::endl
                            << "do_not_relay: " << (tx_info.do_not_relay ? 'T' : 'F')  << std::endl
                            << "kept_by_block: " << (tx_info.kept_by_block ? 'T' : 'F') << std::endl
                            << "double_spend_seen: " << (tx_info.double_spend_seen ? 'T' : 'F')  << std::endl
                            << "max_used_block_height: " << tx_info.max_used_block_height << std::endl
                            << "max_used_block_id: " << tx_info.max_used_block_id_hash << std::endl
                            << "last_failed_height: " << tx_info.last_failed_height << std::endl
                            << "last_failed_id: " << tx_info.last_failed_id_hash << std::endl;
      }
      if (res.spent_key_images.empty())
      {
        tools::msg_writer() << "WARNING: Inconsistent pool state - no spent key images";
      }
    }
    if (! res.spent_key_images.empty())
    {
      tools::msg_writer() << ""; // one newline
      tools::msg_writer() << "Spent key images: ";
      for (const cryptonote::spent_key_image_info& kinfo : res.spent_key_images)
      {
        tools::msg_writer() << "key image: " << kinfo.id_hash;
        if (kinfo.txs_hashes.size() == 1)
        {
          tools::msg_writer() << "  tx: " << kinfo.txs_hashes[0];
        }
        else if (kinfo.txs_hashes.size() == 0)
        {
          tools::msg_writer() << "  WARNING: spent key image has no txs associated";
        }
        else
        {
          tools::msg_writer() << "  NOTE: key image for multiple txs: " << kinfo.txs_hashes.size();
          for (const std::string& tx_id : kinfo.txs_hashes)
          {
            tools::msg_writer() << "  tx: " << tx_id;
          }
        }
      }
      if (res.transactions.empty())
      {
        tools::msg_writer() << "WARNING: Inconsistent pool state - no transactions";
      }
    }
  
    return true;
  }
  
  bool t_rpc_command_executor::print_transaction_pool_short() {
    cryptonote::COMMAND_RPC_GET_TRANSACTION_POOL::request req;
    cryptonote::COMMAND_RPC_GET_TRANSACTION_POOL::response res;
  
    std::string fail_message = "Problem fetching transaction pool";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/get_transaction_pool", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_transaction_pool(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    if (res.transactions.empty())
    {
      tools::msg_writer() << "Pool is empty" << std::endl;
    }
    else
    {
      const time_t now = time(NULL);
      for (auto & tx_info : res.transactions)
      {
        tools::msg_writer() << "id: " << tx_info.id_hash << std::endl
                            << "blob_size: " << tx_info.blob_size << std::endl
                            << "fee: " << cryptonote::print_money(tx_info.fee) << std::endl
                            << "fee/byte: " << cryptonote::print_money(tx_info.fee / (double)tx_info.blob_size) << std::endl
                            << "receive_time: " << tx_info.receive_time << " (" << get_human_time_ago(tx_info.receive_time, now) << ")" << std::endl
                            << "relayed: " << [&](const cryptonote::tx_info &tx_info)->std::string { if (!tx_info.relayed) return "no"; return boost::lexical_cast<std::string>(tx_info.last_relayed_time) + " (" + get_human_time_ago(tx_info.last_relayed_time, now) + ")"; } (tx_info) << std::endl
                            << "do_not_relay: " << (tx_info.do_not_relay ? 'T' : 'F')  << std::endl
                            << "kept_by_block: " << (tx_info.kept_by_block ? 'T' : 'F') << std::endl
                            << "double_spend_seen: " << (tx_info.double_spend_seen ? 'T' : 'F') << std::endl
                            << "max_used_block_height: " << tx_info.max_used_block_height << std::endl
                            << "max_used_block_id: " << tx_info.max_used_block_id_hash << std::endl
                            << "last_failed_height: " << tx_info.last_failed_height << std::endl
                            << "last_failed_id: " << tx_info.last_failed_id_hash << std::endl;
      }
    }
  
    return true;
  }
  
  bool t_rpc_command_executor::print_transaction_pool_stats() {
    cryptonote::COMMAND_RPC_GET_TRANSACTION_POOL_STATS::request req;
    cryptonote::COMMAND_RPC_GET_TRANSACTION_POOL_STATS::response res;
    cryptonote::COMMAND_RPC_GET_INFO::request ireq;
    cryptonote::COMMAND_RPC_GET_INFO::response ires;
  
    std::string fail_message = "Problem fetching transaction pool stats";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/get_transaction_pool_stats", fail_message.c_str()))
      {
        return true;
      }
      if (!m_rpc_client->rpc_request(ireq, ires, "/getinfo", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      res.pool_stats = {};
      if (!m_rpc_server->on_get_transaction_pool_stats(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
      if (!m_rpc_server->on_get_info(ireq, ires) || ires.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, ires.status);
        return true;
      }
    }
  
    size_t n_transactions = res.pool_stats.txs_total;
    const uint64_t now = time(NULL);
    size_t avg_bytes = n_transactions ? res.pool_stats.bytes_total / n_transactions : 0;
  
    std::string backlog_message;
    const uint64_t full_reward_zone = ires.block_size_limit / 2;
    if (res.pool_stats.bytes_total <= full_reward_zone)
    {
      backlog_message = "no backlog";
    }
    else
    {
      uint64_t backlog = (res.pool_stats.bytes_total + full_reward_zone - 1) / full_reward_zone;
      backlog_message = (boost::format("estimated %u block (%u minutes) backlog") % backlog % (backlog * DIFFICULTY_TARGET / 60)).str();
    }
  
    tools::msg_writer() << n_transactions << " tx(es), " << res.pool_stats.bytes_total << " bytes total (min " << res.pool_stats.bytes_min << ", max " << res.pool_stats.bytes_max << ", avg " << avg_bytes << ", median " << res.pool_stats.bytes_med << ")" << std::endl
        << "fees " << cryptonote::print_money(res.pool_stats.fee_total) << " (avg " << cryptonote::print_money(n_transactions ? res.pool_stats.fee_total / n_transactions : 0) << " per tx" << ", " << cryptonote::print_money(res.pool_stats.bytes_total ? res.pool_stats.fee_total / res.pool_stats.bytes_total : 0) << " per byte)" << std::endl
        << res.pool_stats.num_double_spends << " double spends, " << res.pool_stats.num_not_relayed << " not relayed, " << res.pool_stats.num_failing << " failing, " << res.pool_stats.num_10m << " older than 10 minutes (oldest " << (res.pool_stats.oldest == 0 ? "-" : get_human_time_ago(res.pool_stats.oldest, now)) << "), " << backlog_message;
  
    if (n_transactions > 1 && res.pool_stats.histo.size())
    {
      std::vector<uint64_t> times;
      uint64_t numer;
      size_t i, n = res.pool_stats.histo.size(), denom;
      times.resize(n);
      if (res.pool_stats.histo_98pc)
      {
        numer = res.pool_stats.histo_98pc;
        denom = n-1;
        for (i=0; i<denom; i++)
          times[i] = i * numer / denom;
        times[i] = now - res.pool_stats.oldest;
      } else
      {
        numer = now - res.pool_stats.oldest;
        denom = n;
        for (i=0; i<denom; i++)
          times[i] = i * numer / denom;
      }
      tools::msg_writer() << "   Age      Txes       Bytes";
      for (i=0; i<n; i++)
      {
        tools::msg_writer() << get_time_hms(times[i]) << std::setw(8) << res.pool_stats.histo[i].txs << std::setw(12) << res.pool_stats.histo[i].bytes;
      }
    }
    tools::msg_writer();
  
    return true;
  }
  
  bool t_rpc_command_executor::start_mining(cryptonote::account_public_address address, uint64_t num_threads, cryptonote::network_type nettype, bool do_background_mining, bool ignore_battery) {
    cryptonote::COMMAND_RPC_START_MINING::request req;
    cryptonote::COMMAND_RPC_START_MINING::response res;
    req.miner_address = cryptonote::get_account_address_as_str(nettype, false, address);
    req.threads_count = num_threads;
    req.do_background_mining = do_background_mining;
    req.ignore_battery = ignore_battery;
    
    std::string fail_message = "Mining did not start";
  
    if (m_is_rpc)
    {
      if (m_rpc_client->rpc_request(req, res, "/start_mining", fail_message.c_str()))
      {
        tools::success_msg_writer() << "Mining started";
      }
    }
    else
    {
      if (!m_rpc_server->on_start_mining(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    return true;
  }
  
  bool t_rpc_command_executor::donate_mining(uint32_t blocks_count)
  {
    cryptonote::COMMAND_RPC_DONATE_MINING::request req;
    cryptonote::COMMAND_RPC_DONATE_MINING::response res;
    req.blocks = blocks_count;
    
    std::string fail_message = "Donation level unchanged";
  
    if (m_is_rpc)
    {
      if (m_rpc_client->rpc_request(req, res, "/set_donate_level", fail_message.c_str()))
      {
        tools::success_msg_writer() << "Donation level set";
      }
    }
    else
    {
      if (!m_rpc_server->on_set_donation_level(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
      const uint8_t donate_percent = res.blocks;
      if (donate_percent > 0)
      {
        tools::success_msg_writer() << "Mining set to donate " << (unsigned)donate_percent << "% of blocks to the dev fund. Thank you for your support.";
      }
      else
      {
        tools::success_msg_writer() << "Mining donations disabled.";
      }
    }
  
    return true;
  }
  
  bool t_rpc_command_executor::stop_mining() {
    cryptonote::COMMAND_RPC_STOP_MINING::request req;
    cryptonote::COMMAND_RPC_STOP_MINING::response res;
  
    std::string fail_message = "Mining did not stop";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/stop_mining", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_stop_mining(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::success_msg_writer() << "Mining stopped";
    return true;
  }
  
  bool t_rpc_command_executor::stop_daemon()
  {
    cryptonote::COMMAND_RPC_STOP_DAEMON::request req;
    cryptonote::COMMAND_RPC_STOP_DAEMON::response res;
  
    // Stop via RPC
    std::string fail_message = "Daemon did not stop";
  
    if (m_is_rpc)
    {
      if(!m_rpc_client->rpc_request(req, res, "/stop_daemon", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_stop_daemon(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::success_msg_writer() << "Stop signal sent";
  
    return true;
  }
  
  bool t_rpc_command_executor::print_status()
  {
    if (!m_is_rpc)
    {
      tools::success_msg_writer() << "print_status makes no sense in interactive mode";
      return true;
    }
  
    bool daemon_is_alive = m_rpc_client->check_connection();
  
    if(daemon_is_alive) {
      tools::success_msg_writer() << "amityd is running";
    }
    else {
      tools::fail_msg_writer() << "amityd is NOT running";
    }
  
    return true;
  }
  
  bool t_rpc_command_executor::get_limit()
  {
    cryptonote::COMMAND_RPC_GET_LIMIT::request req;
    cryptonote::COMMAND_RPC_GET_LIMIT::response res;
  
    std::string failure_message = "Couldn't get limit";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/get_limit", failure_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_limit(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(failure_message, res.status);
        return true;
      }
    }
  
    tools::msg_writer() << "limit-down is " << res.limit_down << " kB/s";
    tools::msg_writer() << "limit-up is " << res.limit_up << " kB/s";
    return true;
  }
  
  bool t_rpc_command_executor::set_limit(int64_t limit_down, int64_t limit_up)
  {
    cryptonote::COMMAND_RPC_SET_LIMIT::request req;
    cryptonote::COMMAND_RPC_SET_LIMIT::response res;
  
    req.limit_down = limit_down;
    req.limit_up = limit_up;
  
    std::string failure_message = "Couldn't set limit";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/set_limit", failure_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_set_limit(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(failure_message, res.status);
        return true;
      }
    }
  
    tools::msg_writer() << "Set limit-down to " << res.limit_down << " kB/s";
    tools::msg_writer() << "Set limit-up to " << res.limit_up << " kB/s";
    return true;
  }
  
  bool t_rpc_command_executor::get_limit_up()
  {
    cryptonote::COMMAND_RPC_GET_LIMIT::request req;
    cryptonote::COMMAND_RPC_GET_LIMIT::response res;
  
    std::string failure_message = "Couldn't get limit";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/get_limit", failure_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_limit(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(failure_message, res.status);
        return true;
      }
    }
  
    tools::msg_writer() << "limit-up is " << res.limit_up << " kB/s";
    return true;
  }
  
  bool t_rpc_command_executor::get_limit_down()
  {
    cryptonote::COMMAND_RPC_GET_LIMIT::request req;
    cryptonote::COMMAND_RPC_GET_LIMIT::response res;
  
    std::string failure_message = "Couldn't get limit";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/get_limit", failure_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_limit(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(failure_message, res.status);
        return true;
      }
    }
  
    tools::msg_writer() << "limit-down is " << res.limit_down << " kB/s";
    return true;
  }
  
  bool t_rpc_command_executor::out_peers(uint64_t limit)
  {
  	cryptonote::COMMAND_RPC_OUT_PEERS::request req;
  	cryptonote::COMMAND_RPC_OUT_PEERS::response res;
  	
  	epee::json_rpc::error error_resp;
  
  	req.out_peers = limit;
  	
  	std::string fail_message = "Unsuccessful";
  
  	if (m_is_rpc)
  	{
  		if (!m_rpc_client->rpc_request(req, res, "/out_peers", fail_message.c_str()))
  		{
  			return true;
  		}
  	}
  	else
  	{
  		if (!m_rpc_server->on_out_peers(req, res) || res.status != CORE_RPC_STATUS_OK)
  		{
  			tools::fail_msg_writer() << make_error(fail_message, res.status);
  			return true;
  		}
  	}
  
  	tools::msg_writer() << "Max number of out peers set to " << limit << std::endl;
  
  	return true;
  }
  
  bool t_rpc_command_executor::in_peers(uint64_t limit)
  {
  	cryptonote::COMMAND_RPC_IN_PEERS::request req;
  	cryptonote::COMMAND_RPC_IN_PEERS::response res;
  
  	epee::json_rpc::error error_resp;
  
  	req.in_peers = limit;
  
  	std::string fail_message = "Unsuccessful";
  
  	if (m_is_rpc)
  	{
  		if (!m_rpc_client->rpc_request(req, res, "/in_peers", fail_message.c_str()))
  		{
  			return true;
  		}
  	}
  	else
  	{
  		if (!m_rpc_server->on_in_peers(req, res) || res.status != CORE_RPC_STATUS_OK)
  		{
  			tools::fail_msg_writer() << make_error(fail_message, res.status);
  			return true;
  		}
  	}
  
  	tools::msg_writer() << "Max number of in peers set to " << limit << std::endl;
  
  	return true;
  }
  
  bool t_rpc_command_executor::start_save_graph()
  {
  	cryptonote::COMMAND_RPC_START_SAVE_GRAPH::request req;
  	cryptonote::COMMAND_RPC_START_SAVE_GRAPH::response res;
  	std::string fail_message = "Unsuccessful";
  	
  	if (m_is_rpc)
  	{
  		if (!m_rpc_client->rpc_request(req, res, "/start_save_graph", fail_message.c_str()))
  		{
  			return true;
  		}
  	}
  	
  	else
      {
  		if (!m_rpc_server->on_start_save_graph(req, res) || res.status != CORE_RPC_STATUS_OK)
  		{
  			tools::fail_msg_writer() << make_error(fail_message, res.status);
  			return true;
  		}
  	}
  	
  	tools::success_msg_writer() << "Saving graph is now on";
  	return true;
  }
  
  bool t_rpc_command_executor::stop_save_graph()
  {
  	cryptonote::COMMAND_RPC_STOP_SAVE_GRAPH::request req;
  	cryptonote::COMMAND_RPC_STOP_SAVE_GRAPH::response res;
  	std::string fail_message = "Unsuccessful";
  	
  	if (m_is_rpc)
  	{
  		if (!m_rpc_client->rpc_request(req, res, "/stop_save_graph", fail_message.c_str()))
  		{
  			return true;
  		}
  	}
  	
  	else
      {
  		if (!m_rpc_server->on_stop_save_graph(req, res) || res.status != CORE_RPC_STATUS_OK)
  		{
  			tools::fail_msg_writer() << make_error(fail_message, res.status);
  			return true;
  		}
  	}
  	tools::success_msg_writer() << "Saving graph is now off";
  	return true;
  }
  
  bool t_rpc_command_executor::hard_fork_info(uint8_t version)
  {
      cryptonote::COMMAND_RPC_HARD_FORK_INFO::request req;
      cryptonote::COMMAND_RPC_HARD_FORK_INFO::response res;
      std::string fail_message = "Unsuccessful";
      epee::json_rpc::error error_resp;
  
      req.version = version;
  
      if (m_is_rpc)
      {
          if (!m_rpc_client->json_rpc_request(req, res, "hard_fork_info", fail_message.c_str()))
          {
              return true;
          }
      }
      else
      {
          if (!m_rpc_server->on_hard_fork_info(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
          {
              tools::fail_msg_writer() << make_error(fail_message, res.status);
              return true;
          }
      }
  
      version = version > 0 ? version : res.voting;
      tools::msg_writer() << "version " << (uint32_t)version << " " << (res.enabled ? "enabled" : "not enabled") <<
          ", " << res.votes << "/" << res.window << " votes, threshold " << res.threshold;
      tools::msg_writer() << "current version " << (uint32_t)res.version << ", voting for version " << (uint32_t)res.voting;
  
      return true;
  }
  
  bool t_rpc_command_executor::print_bans()
  {
      cryptonote::COMMAND_RPC_GETBANS::request req;
      cryptonote::COMMAND_RPC_GETBANS::response res;
      std::string fail_message = "Unsuccessful";
      epee::json_rpc::error error_resp;
  
      if (m_is_rpc)
      {
          if (!m_rpc_client->json_rpc_request(req, res, "get_bans", fail_message.c_str()))
          {
              return true;
          }
      }
      else
      {
          if (!m_rpc_server->on_get_bans(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
          {
              tools::fail_msg_writer() << make_error(fail_message, res.status);
              return true;
          }
      }
  
      for (auto i = res.bans.begin(); i != res.bans.end(); ++i)
      {
          tools::msg_writer() << epee::string_tools::get_ip_string_from_int32(i->ip) << " banned for " << i->seconds << " seconds";
      }
  
      return true;
  }
  
  
  bool t_rpc_command_executor::ban(const std::string &ip, time_t seconds)
  {
      cryptonote::COMMAND_RPC_SETBANS::request req;
      cryptonote::COMMAND_RPC_SETBANS::response res;
      std::string fail_message = "Unsuccessful";
      epee::json_rpc::error error_resp;
  
      cryptonote::COMMAND_RPC_SETBANS::ban ban;
      if (!epee::string_tools::get_ip_int32_from_string(ban.ip, ip))
      {
          tools::fail_msg_writer() << "Invalid IP";
          return true;
      }
      ban.ban = true;
      ban.seconds = seconds;
      req.bans.push_back(ban);
  
      if (m_is_rpc)
      {
          if (!m_rpc_client->json_rpc_request(req, res, "set_bans", fail_message.c_str()))
          {
              return true;
          }
      }
      else
      {
          if (!m_rpc_server->on_set_bans(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
          {
              tools::fail_msg_writer() << make_error(fail_message, res.status);
              return true;
          }
      }
  
      return true;
  }
  
  bool t_rpc_command_executor::unban(const std::string &ip)
  {
      cryptonote::COMMAND_RPC_SETBANS::request req;
      cryptonote::COMMAND_RPC_SETBANS::response res;
      std::string fail_message = "Unsuccessful";
      epee::json_rpc::error error_resp;
  
      cryptonote::COMMAND_RPC_SETBANS::ban ban;
      if (!epee::string_tools::get_ip_int32_from_string(ban.ip, ip))
      {
          tools::fail_msg_writer() << "Invalid IP";
          return true;
      }
      ban.ban = false;
      ban.seconds = 0;
      req.bans.push_back(ban);
  
      if (m_is_rpc)
      {
          if (!m_rpc_client->json_rpc_request(req, res, "set_bans", fail_message.c_str()))
          {
              return true;
          }
      }
      else
      {
          if (!m_rpc_server->on_set_bans(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
          {
              tools::fail_msg_writer() << make_error(fail_message, res.status);
              return true;
          }
      }
  
      return true;
  }
  
  bool t_rpc_command_executor::flush_txpool(const std::string &txid)
  {
      cryptonote::COMMAND_RPC_FLUSH_TRANSACTION_POOL::request req;
      cryptonote::COMMAND_RPC_FLUSH_TRANSACTION_POOL::response res;
      std::string fail_message = "Unsuccessful";
      epee::json_rpc::error error_resp;
  
      if (!txid.empty())
        req.txids.push_back(txid);
  
      if (m_is_rpc)
      {
          if (!m_rpc_client->json_rpc_request(req, res, "flush_txpool", fail_message.c_str()))
          {
              return true;
          }
      }
      else
      {
          if (!m_rpc_server->on_flush_txpool(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
          {
              tools::fail_msg_writer() << make_error(fail_message, res.status);
              return true;
          }
      }
  
      tools::success_msg_writer() << "Pool successfully flushed";
      return true;
  }
  
  bool t_rpc_command_executor::output_histogram(const std::vector<uint64_t> &amounts, uint64_t min_count, uint64_t max_count)
  {
      cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::request req;
      cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::response res;
      std::string fail_message = "Unsuccessful";
      epee::json_rpc::error error_resp;
  
      req.amounts = amounts;
      req.min_count = min_count;
      req.max_count = max_count;
      req.unlocked = false;
      req.recent_cutoff = 0;
  
      if (m_is_rpc)
      {
          if (!m_rpc_client->json_rpc_request(req, res, "get_output_histogram", fail_message.c_str()))
          {
              return true;
          }
      }
      else
      {
          if (!m_rpc_server->on_get_output_histogram(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
          {
              tools::fail_msg_writer() << make_error(fail_message, res.status);
              return true;
          }
      }
  
      std::sort(res.histogram.begin(), res.histogram.end(),
          [](const cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::entry &e1, const cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::entry &e2)->bool { return e1.total_instances < e2.total_instances; });
      for (const auto &e: res.histogram)
      {
          tools::msg_writer() << e.total_instances << "  " << cryptonote::print_money(e.amount);
      }
  
      return true;
  }
  
  bool t_rpc_command_executor::print_coinbase_tx_sum(uint64_t height, uint64_t count)
  {
    cryptonote::COMMAND_RPC_GET_COINBASE_TX_SUM::request req;
    cryptonote::COMMAND_RPC_GET_COINBASE_TX_SUM::response res;
    epee::json_rpc::error error_resp;
  
    req.height = height;
    req.count = count;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->json_rpc_request(req, res, "get_coinbase_tx_sum", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_coinbase_tx_sum(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::msg_writer() << "Sum of coinbase transactions between block heights ["
      << height << ", " << (height + count) << ") is "
      << cryptonote::print_money(res.emission_amount + res.fee_amount) << " "
      << "consisting of " << cryptonote::print_money(res.emission_amount) 
      << " in emissions, and " << cryptonote::print_money(res.fee_amount) << " in fees";
    return true;
  }
  
  bool t_rpc_command_executor::print_generated_coins()
  {
    cryptonote::COMMAND_RPC_GET_GENERATED_COINS::request req;
    cryptonote::COMMAND_RPC_GET_GENERATED_COINS::response res;
    epee::json_rpc::error error_resp;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->json_rpc_request(req, res, "get_generated_coins", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_generated_coins(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::msg_writer() << "Generated coins: " << cryptonote::print_money(res.coins);
    return true;
  }
  
  bool t_rpc_command_executor::min_version()
  {
    cryptonote::COMMAND_RPC_MIN_VERSION::request req;
    cryptonote::COMMAND_RPC_MIN_VERSION::response res;
    epee::json_rpc::error error_resp;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->json_rpc_request(req, res, "get_min_version", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_min_version(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::msg_writer() << "Minimum Supported Version: " << res.version_string;
    return true;
  }
  
  bool t_rpc_command_executor::print_tx_pubkey(std::string extra)
  {
    cryptonote::COMMAND_RPC_GET_TX_PUBKEY::request req;
    cryptonote::COMMAND_RPC_GET_TX_PUBKEY::response res;
    epee::json_rpc::error error_resp;
  
    req.extra = extra;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->json_rpc_request(req, res, "get_tx_pubkey", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_tx_pubkey(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    tools::msg_writer() << "TX Pubkey: " << res.pubkey;
    return true;
  }
  
  bool t_rpc_command_executor::alt_chain_info(const std::string &tip)
  {
    cryptonote::COMMAND_RPC_GET_INFO::request ireq;
    cryptonote::COMMAND_RPC_GET_INFO::response ires;
    cryptonote::COMMAND_RPC_GET_ALTERNATE_CHAINS::request req;
    cryptonote::COMMAND_RPC_GET_ALTERNATE_CHAINS::response res;
    epee::json_rpc::error error_resp;
  
    std::string fail_message = "Unsuccessful";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(ireq, ires, "/getinfo", fail_message.c_str()))
      {
        return true;
      }
      if (!m_rpc_client->json_rpc_request(req, res, "get_alternate_chains", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_info(ireq, ires) || ires.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, ires.status);
        return true;
      }
      if (!m_rpc_server->on_get_alternate_chains(req, res, error_resp))
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    if (tip.empty())
    {
      tools::msg_writer() << boost::lexical_cast<std::string>(res.chains.size()) << " alternate chains found:";
      for (const auto &chain: res.chains)
      {
        uint64_t start_height = (chain.height - chain.length + 1);
        tools::msg_writer() << chain.length << " blocks long, from height " << start_height << " (" << (ires.height - start_height - 1)
            << " deep), diff " << chain.difficulty << ": " << chain.block_hash;
      }
    }
    else
    {
      const auto i = std::find_if(res.chains.begin(), res.chains.end(), [&tip](cryptonote::COMMAND_RPC_GET_ALTERNATE_CHAINS::chain_info &info){ return info.block_hash == tip; });
      if (i != res.chains.end())
      {
        const auto &chain = *i;
        tools::success_msg_writer() << "Found alternate chain with tip " << tip;
        uint64_t start_height = (chain.height - chain.length + 1);
        tools::msg_writer() << chain.length << " blocks long, from height " << start_height << " (" << (ires.height - start_height - 1)
            << " deep), diff " << chain.difficulty << ":";
        for (const std::string &block_id: chain.block_hashes)
          tools::msg_writer() << "  " << block_id;
        tools::msg_writer() << "Chain parent on main chain: " << chain.main_chain_parent_block;
      }
      else
        tools::fail_msg_writer() << "Block hash " << tip << " is not the tip of any known alternate chain";
    }
    return true;
  }
  
  bool t_rpc_command_executor::print_blockchain_dynamic_stats(uint64_t nblocks)
  {
    cryptonote::COMMAND_RPC_GET_INFO::request ireq;
    cryptonote::COMMAND_RPC_GET_INFO::response ires;
    cryptonote::COMMAND_RPC_GET_BLOCK_HEADERS_RANGE::request bhreq;
    cryptonote::COMMAND_RPC_GET_BLOCK_HEADERS_RANGE::response bhres;
    cryptonote::COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE::request fereq;
    cryptonote::COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE::response feres;
    epee::json_rpc::error error_resp;
  
    std::string fail_message = "Problem fetching info";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(ireq, ires, "/getinfo", fail_message.c_str()))
      {
        return true;
      }
      if (!m_rpc_client->json_rpc_request(fereq, feres, "get_fee_estimate", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_get_info(ireq, ires) || ires.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, ires.status);
        return true;
      }
      if (!m_rpc_server->on_get_per_kb_fee_estimate(fereq, feres, error_resp) || feres.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, feres.status);
        return true;
      }
    }
  
    tools::msg_writer() << "Height: " << ires.height << ", diff " << ires.difficulty << ", cum. diff " << ires.cumulative_difficulty
        << ", target " << ires.target << " sec" << ", dyn fee " << cryptonote::print_money(feres.fee) << "/kB";
  
    if (nblocks > 0)
    {
      if (nblocks > ires.height)
        nblocks = ires.height;
  
      bhreq.start_height = ires.height - nblocks;
      bhreq.end_height = ires.height - 1;
      if (m_is_rpc)
      {
        if (!m_rpc_client->json_rpc_request(bhreq, bhres, "getblockheadersrange", fail_message.c_str()))
        {
          return true;
        }
      }
      else
      {
        if (!m_rpc_server->on_get_block_headers_range(bhreq, bhres, error_resp) || bhres.status != CORE_RPC_STATUS_OK)
        {
          tools::fail_msg_writer() << make_error(fail_message, bhres.status);
          return true;
        }
      }
  
      double avgdiff = 0;
      double avgnumtxes = 0;
      double avgreward = 0;
      std::vector<uint64_t> sizes;
      sizes.reserve(nblocks);
      uint64_t earliest = std::numeric_limits<uint64_t>::max(), latest = 0;
      std::vector<unsigned> major_versions(256, 0), minor_versions(256, 0);
      for (const auto &bhr: bhres.headers)
      {
        avgdiff += bhr.difficulty;
        avgnumtxes += bhr.num_txes;
        avgreward += bhr.reward;
        sizes.push_back(bhr.block_size);
        static_assert(sizeof(bhr.major_version) == 1, "major_version expected to be uint8_t");
        static_assert(sizeof(bhr.minor_version) == 1, "major_version expected to be uint8_t");
        major_versions[(unsigned)bhr.major_version]++;
        minor_versions[(unsigned)bhr.minor_version]++;
        earliest = std::min(earliest, bhr.timestamp);
        latest = std::max(latest, bhr.timestamp);
      }
      avgdiff /= nblocks;
      avgnumtxes /= nblocks;
      avgreward /= nblocks;
      uint64_t median_block_size = epee::misc_utils::median(sizes);
      tools::msg_writer() << "Last " << nblocks << ": avg. diff " << (uint64_t)avgdiff << ", " << (latest - earliest) / nblocks << " avg sec/block, avg num txes " << avgnumtxes
          << ", avg. reward " << cryptonote::print_money(avgreward) << ", median block size " << median_block_size;
  
      unsigned int max_major = 256, max_minor = 256;
      while (max_major > 0 && !major_versions[--max_major]);
      while (max_minor > 0 && !minor_versions[--max_minor]);
      std::string s = "";
      for (unsigned n = 0; n <= max_major; ++n)
        if (major_versions[n])
          s += (s.empty() ? "" : ", ") + boost::lexical_cast<std::string>(major_versions[n]) + std::string(" v") + boost::lexical_cast<std::string>(n);
      tools::msg_writer() << "Block versions: " << s;
      s = "";
      for (unsigned n = 0; n <= max_minor; ++n)
        if (minor_versions[n])
          s += (s.empty() ? "" : ", ") + boost::lexical_cast<std::string>(minor_versions[n]) + std::string(" v") + boost::lexical_cast<std::string>(n);
      tools::msg_writer() << "Voting for: " << s;
    }
    return true;
  }
  
  bool t_rpc_command_executor::update()
  {
    cryptonote::COMMAND_RPC_UPDATE::request req;
    cryptonote::COMMAND_RPC_UPDATE::response res;
    epee::json_rpc::error error_resp;
  
    std::string fail_message = "Problem fetching info";
  
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/update", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_update(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
  
    if (!res.update)
    {
      tools::msg_writer() << "No update available";
      return true;
    }
  
    tools::msg_writer() << "Update available- v" << res.version << ":" << res.codename << ENDL << res.uri << ENDL << "Release note: " << res.release_note;
    return true;
  }
  
  bool t_rpc_command_executor::relay_tx(const std::string &txid)
  {
      cryptonote::COMMAND_RPC_RELAY_TX::request req;
      cryptonote::COMMAND_RPC_RELAY_TX::response res;
      std::string fail_message = "Unsuccessful";
      epee::json_rpc::error error_resp;
  
      req.txids.push_back(txid);
  
      if (m_is_rpc)
      {
          if (!m_rpc_client->json_rpc_request(req, res, "relay_tx", fail_message.c_str()))
          {
              return true;
          }
      }
      else
      {
          if (!m_rpc_server->on_relay_tx(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
          {
              tools::fail_msg_writer() << make_error(fail_message, res.status);
              return true;
          }
      }
  
      tools::success_msg_writer() << "Transaction successfully relayed";
      return true;
  }
  
  bool t_rpc_command_executor::sync_info()
  {
      cryptonote::COMMAND_RPC_SYNC_INFO::request req;
      cryptonote::COMMAND_RPC_SYNC_INFO::response res;
      std::string fail_message = "Unsuccessful";
      epee::json_rpc::error error_resp;
  
      if (m_is_rpc)
      {
          if (!m_rpc_client->json_rpc_request(req, res, "sync_info", fail_message.c_str()))
          {
              return true;
          }
      }
      else
      {
          if (!m_rpc_server->on_sync_info(req, res, error_resp) || res.status != CORE_RPC_STATUS_OK)
          {
              tools::fail_msg_writer() << make_error(fail_message, res.status);
              return true;
          }
      }
  
      uint64_t target = res.target_height < res.height ? res.height : res.target_height;
      tools::success_msg_writer() << "Height: " << res.height << ", target: " << target << " (" << (100.0 * res.height / target) << "%)";
      uint64_t current_download = 0;
      for (const auto &p: res.peers)
        current_download += p.info.current_download;
      tools::success_msg_writer() << "Downloading at " << current_download << " kB/s";
  
      tools::success_msg_writer() << std::to_string(res.peers.size()) << " peers";
      for (const auto &p: res.peers)
      {
        std::string address = epee::string_tools::pad_string(p.info.address, 24);
        uint64_t nblocks = 0, size = 0;
        for (const auto &s: res.spans)
          if (s.connection_id == p.info.connection_id)
            nblocks += s.nblocks, size += s.size;
        tools::success_msg_writer() << address << "  " << epee::string_tools::pad_string(p.info.peer_id, 16, '0', true) << "  " <<
            epee::string_tools::pad_string(p.info.state, 16) << "  " <<
            p.info.height << "  "  <<
            p.info.current_download << " kB/s, " << nblocks << " blocks / " << size/1e6 << " MB queued";
      }
  
      uint64_t total_size = 0;
      for (const auto &s: res.spans)
        total_size += s.size;
      tools::success_msg_writer() << std::to_string(res.spans.size()) << " spans, " << total_size/1e6 << " MB";
      tools::success_msg_writer() << res.overview;
      for (const auto &s: res.spans)
      {
        std::string address = epee::string_tools::pad_string(s.remote_address, 24);
        if (s.size == 0)
        {
          tools::success_msg_writer() << address << "  " << s.nblocks << " (" << s.start_block_height << " - " << (s.start_block_height + s.nblocks - 1) << ")  -";
        }
        else
        {
          tools::success_msg_writer() << address << "  " << s.nblocks << " (" << s.start_block_height << " - " << (s.start_block_height + s.nblocks - 1) << ", " << (uint64_t)(s.size/1e3) << " kB)  " << (unsigned)(s.rate/1e3) << " kB/s (" << s.speed/100.0f << ")";
        }
      }
  
      return true;
  }
  
  bool t_rpc_command_executor::pop_blocks(uint64_t num_blocks)
  {
    cryptonote::COMMAND_RPC_POP_BLOCKS::request req;
    cryptonote::COMMAND_RPC_POP_BLOCKS::response res;
    std::string fail_message = "pop_blocks failed";
  
    req.nblocks = num_blocks;
    if (m_is_rpc)
    {
      if (!m_rpc_client->rpc_request(req, res, "/pop_blocks", fail_message.c_str()))
      {
        return true;
      }
    }
    else
    {
      if (!m_rpc_server->on_pop_blocks(req, res) || res.status != CORE_RPC_STATUS_OK)
      {
        tools::fail_msg_writer() << make_error(fail_message, res.status);
        return true;
      }
    }
    tools::success_msg_writer() << "new height: " << res.height;
  
    return true;
  }
  
  }// namespace daemonize
  