json serialization for rpc-relevant monero types

Structured {de-,}serialization methods for (many new) types
which are used for requests or responses in the RPC.

New types include RPC requests and responses, and structs which compose
types within those.

# Conflicts:
#	src/cryptonote_core/blockchain.cpp

1 files changed, 800 insertions, 0 deletions

diff --git a/src/rpc/daemon_handler.cpp b/src/rpc/daemon_handler.cpp
new file mode 100644
index 000000000..6a287b229
--- /dev/null
+++ b/src/rpc/daemon_handler.cpp
@@ -0,0 +1,800 @@
+// Copyright (c) 2017, 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.
+
+#include "daemon_handler.h"
+
+// likely included by daemon_handler.h's includes,
+// but including here for clarity
+#include "cryptonote_core/cryptonote_core.h"
+#include "cryptonote_basic/cryptonote_format_utils.h"
+#include "cryptonote_protocol/blobdatatype.h"
+#include "ringct/rctSigs.h"
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+  void DaemonHandler::handle(const GetHeight::Request& req, GetHeight::Response& res)
+  {
+    res.height = m_core.get_current_blockchain_height();
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBlocksFast::Request& req, GetBlocksFast::Response& res)
+  {
+    std::list<std::pair<blobdata, std::list<blobdata> > > blocks;
+
+    if(!m_core.find_blockchain_supplement(req.start_height, req.block_ids, blocks, res.current_height, res.start_height, COMMAND_RPC_GET_BLOCKS_FAST_MAX_COUNT))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "core::find_blockchain_supplement() returned false";
+      return;
+    }
+
+    res.blocks.resize(blocks.size());
+    res.output_indices.resize(blocks.size());
+
+    //TODO: really need to switch uses of std::list to std::vector unless
+    //      it's a huge performance concern
+
+    auto it = blocks.begin();
+
+    uint64_t block_count = 0;
+    while (it != blocks.end())
+    {
+      cryptonote::rpc::block_with_transactions& bwt = res.blocks[block_count];
+
+      if (!parse_and_validate_block_from_blob(it->first, bwt.block))
+      {
+        res.blocks.clear();
+        res.output_indices.clear();
+        res.status = Message::STATUS_FAILED;
+        res.error_details = "failed retrieving a requested block";
+        return;
+      }
+
+      std::list<transaction> txs;
+      for (const auto& blob : it->second)
+      {
+        txs.resize(txs.size() + 1);
+        if (!parse_and_validate_tx_from_blob(blob, txs.back()))
+        {
+          res.blocks.clear();
+          res.output_indices.clear();
+          res.status = Message::STATUS_FAILED;
+          res.error_details = "failed retrieving a requested block";
+          return;
+        }
+      }
+
+      cryptonote::rpc::block_output_indices& indices = res.output_indices[block_count];
+
+      // miner tx output indices
+      {
+        cryptonote::rpc::tx_output_indices tx_indices;
+        bool r = m_core.get_tx_outputs_gindexs(get_transaction_hash(bwt.block.miner_tx), tx_indices);
+        if (!r)
+        {
+          res.status = Message::STATUS_FAILED;
+          res.error_details = "core::get_tx_outputs_gindexs() returned false";
+          return;
+        }
+        indices.push_back(tx_indices);
+      }
+
+      // assume each block returned is returned with all its transactions
+      // in the correct order.
+      auto tx_it = txs.begin();
+      for (const crypto::hash& h : bwt.block.tx_hashes)
+      {
+        bwt.transactions.emplace(h, *tx_it);
+        tx_it++;
+
+        cryptonote::rpc::tx_output_indices tx_indices;
+        bool r = m_core.get_tx_outputs_gindexs(h, tx_indices);
+        if (!r)
+        {
+          res.status = Message::STATUS_FAILED;
+          res.error_details = "core::get_tx_outputs_gindexs() returned false";
+          return;
+        }
+
+        indices.push_back(tx_indices);
+      }
+
+      it++;
+      block_count++;
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetHashesFast::Request& req, GetHashesFast::Response& res)
+  {
+    res.start_height = req.start_height;
+
+    auto& chain = m_core.get_blockchain_storage();
+
+    if (!chain.find_blockchain_supplement(req.known_hashes, res.hashes, res.start_height, res.current_height))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Blockchain::find_blockchain_supplement() returned false";
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetTransactions::Request& req, GetTransactions::Response& res)
+  {
+    std::list<cryptonote::transaction> found_txs;
+    std::list<crypto::hash> missed_hashes;
+
+    bool r = m_core.get_transactions(req.tx_hashes, found_txs, missed_hashes);
+
+    // TODO: consider fixing core::get_transactions to not hide exceptions
+    if (!r)
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "core::get_transactions() returned false (exception caught there)";
+      return;
+    }
+
+    size_t num_found = found_txs.size();
+
+    // std::list is annoying
+    std::vector<cryptonote::transaction> found_txs_vec
+    {
+      std::make_move_iterator(std::begin(found_txs)),
+      std::make_move_iterator(std::end(found_txs))
+    };
+
+    std::vector<crypto::hash> missed_vec
+    {
+      std::make_move_iterator(std::begin(missed_hashes)),
+      std::make_move_iterator(std::end(missed_hashes))
+    };
+
+    std::vector<uint64_t> heights(num_found);
+    std::vector<bool> in_pool(num_found, false);
+    std::vector<crypto::hash> found_hashes(num_found);
+
+    for (size_t i=0; i < num_found; i++)
+    {
+      found_hashes[i] = get_transaction_hash(found_txs_vec[i]);
+      heights[i] = m_core.get_blockchain_storage().get_db().get_tx_block_height(found_hashes[i]);
+    }
+
+    // if any missing from blockchain, check in tx pool
+    if (!missed_vec.empty())
+    {
+      std::list<cryptonote::transaction> pool_txs;
+
+      m_core.get_pool_transactions(pool_txs);
+
+      for (const auto& tx : pool_txs)
+      {
+        crypto::hash h = get_transaction_hash(tx);
+
+        auto itr = std::find(missed_vec.begin(), missed_vec.end(), h);
+
+        if (itr != missed_vec.end())
+        {
+          found_hashes.push_back(h);
+          found_txs_vec.push_back(tx);
+          heights.push_back(std::numeric_limits<uint64_t>::max());
+          in_pool.push_back(true);
+          missed_vec.erase(itr);
+        }
+      }
+    }
+
+    for (size_t i=0; i < found_hashes.size(); i++)
+    {
+      cryptonote::rpc::transaction_info info;
+      info.height = heights[i];
+      info.in_pool = in_pool[i];
+      info.transaction = std::move(found_txs_vec[i]);
+
+      res.txs.emplace(found_hashes[i], std::move(info));
+    }
+                                      
+    res.missed_hashes = std::move(missed_vec);
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const KeyImagesSpent::Request& req, KeyImagesSpent::Response& res)
+  {
+    res.spent_status.resize(req.key_images.size(), KeyImagesSpent::STATUS::UNSPENT);
+
+    std::vector<bool> chain_spent_status;
+    std::vector<bool> pool_spent_status;
+
+    m_core.are_key_images_spent(req.key_images, chain_spent_status);
+    m_core.are_key_images_spent_in_pool(req.key_images, pool_spent_status);
+
+    if ((chain_spent_status.size() != req.key_images.size()) || (pool_spent_status.size() != req.key_images.size()))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "tx_pool::have_key_images_as_spent() gave vectors of wrong size(s).";
+      return;
+    }
+
+    for(size_t i=0; i < req.key_images.size(); i++)
+    {
+      if ( chain_spent_status[i] )
+      {
+        res.spent_status[i] = KeyImagesSpent::STATUS::SPENT_IN_BLOCKCHAIN;
+      }
+      else if ( pool_spent_status[i] )
+      {
+        res.spent_status[i] = KeyImagesSpent::STATUS::SPENT_IN_POOL;
+      }
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetTxGlobalOutputIndices::Request& req, GetTxGlobalOutputIndices::Response& res)
+  {
+    if (!m_core.get_tx_outputs_gindexs(req.tx_hash, res.output_indices))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "core::get_tx_outputs_gindexs() returned false";
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+
+  }
+
+  //TODO: handle "restricted" RPC
+  void DaemonHandler::handle(const GetRandomOutputsForAmounts::Request& req, GetRandomOutputsForAmounts::Response& res)
+  {
+    auto& chain = m_core.get_blockchain_storage();
+
+    try
+    {
+      for (const uint64_t& amount : req.amounts)
+      {
+        std::vector<uint64_t> indices = chain.get_random_outputs(amount, req.count);
+
+        outputs_for_amount ofa;
+
+        ofa.resize(indices.size());
+
+        for (size_t i = 0; i < indices.size(); i++)
+        {
+          crypto::public_key key = chain.get_output_key(amount, indices[i]);
+          ofa[i].amount_index = indices[i];
+          ofa[i].key = key;
+        }
+
+        amount_with_random_outputs amt;
+        amt.amount = amount;
+        amt.outputs = ofa;
+
+        res.amounts_with_outputs.push_back(amt);
+      }
+
+      res.status = Message::STATUS_OK;
+    }
+    catch (const std::exception& e)
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = e.what();
+    }
+  }
+
+  void DaemonHandler::handle(const SendRawTx::Request& req, SendRawTx::Response& res)
+  {
+    auto tx_blob = cryptonote::tx_to_blob(req.tx);
+
+    cryptonote_connection_context fake_context = AUTO_VAL_INIT(fake_context);
+    tx_verification_context tvc = AUTO_VAL_INIT(tvc);
+
+    if(!m_core.handle_incoming_tx(tx_blob, tvc, false, false, !req.relay) || tvc.m_verifivation_failed)
+    {
+      if (tvc.m_verifivation_failed)
+      {
+        LOG_PRINT_L0("[on_send_raw_tx]: tx verification failed");
+      }
+      else
+      {
+        LOG_PRINT_L0("[on_send_raw_tx]: Failed to process tx");
+      }
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "";
+
+      if (tvc.m_low_mixin)
+      {
+        res.error_details = "mixin too low";
+      }
+      if (tvc.m_double_spend)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "double spend";
+      }
+      if (tvc.m_invalid_input)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "invalid input";
+      }
+      if (tvc.m_invalid_output)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "invalid output";
+      }
+      if (tvc.m_too_big)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "too big";
+      }
+      if (tvc.m_overspend)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "overspend";
+      }
+      if (tvc.m_fee_too_low)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "fee too low";
+      }
+      if (tvc.m_not_rct)
+      {
+        if (!res.error_details.empty()) res.error_details += " and ";
+        res.error_details = "tx is not ringct";
+      }
+      if (res.error_details.empty())
+      {
+        res.error_details = "an unknown issue was found with the transaction";
+      }
+
+      return;
+    }
+
+    if(!tvc.m_should_be_relayed || !req.relay)
+    {
+      LOG_PRINT_L0("[on_send_raw_tx]: tx accepted, but not relayed");
+      res.error_details = "Not relayed";
+      res.relayed = false;
+      res.status = Message::STATUS_OK;
+
+      return;
+    }
+
+    NOTIFY_NEW_TRANSACTIONS::request r;
+    r.txs.push_back(tx_blob);
+    m_core.get_protocol()->relay_transactions(r, fake_context);
+
+    //TODO: make sure that tx has reached other nodes here, probably wait to receive reflections from other nodes
+    res.status = Message::STATUS_OK;
+    res.relayed = true;
+
+    return;
+  }
+
+  void DaemonHandler::handle(const StartMining::Request& req, StartMining::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const GetInfo::Request& req, GetInfo::Response& res)
+  {
+    res.height = m_core.get_current_blockchain_height();
+
+    res.target_height = m_core.get_target_blockchain_height();
+
+    if (res.height > res.target_height)
+    {
+      res.target_height = res.height;
+    }
+
+    auto& chain = m_core.get_blockchain_storage();
+
+    res.difficulty = chain.get_difficulty_for_next_block();
+
+    res.target = chain.get_difficulty_target();
+
+    res.tx_count = chain.get_total_transactions() - res.height; //without coinbase
+
+    res.tx_pool_size = m_core.get_pool_transactions_count();
+
+    res.alt_blocks_count = chain.get_alternative_blocks_count();
+
+    uint64_t total_conn = m_p2p.get_connections_count();
+    res.outgoing_connections_count = m_p2p.get_outgoing_connections_count();
+    res.incoming_connections_count = total_conn - res.outgoing_connections_count;
+
+    res.white_peerlist_size = m_p2p.get_peerlist_manager().get_white_peers_count();
+
+    res.grey_peerlist_size = m_p2p.get_peerlist_manager().get_gray_peers_count();
+
+    res.testnet = m_core.get_testnet();
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const StopMining::Request& req, StopMining::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const MiningStatus::Request& req, MiningStatus::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const SaveBC::Request& req, SaveBC::Response& res)
+  {
+    if (!m_core.get_blockchain_storage().store_blockchain())
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Error storing the blockchain";
+    }
+    else
+    {
+      res.status = Message::STATUS_OK;
+    }
+  }
+
+  void DaemonHandler::handle(const GetBlockHash::Request& req, GetBlockHash::Response& res)
+  {
+    if (m_core.get_current_blockchain_height() <= req.height)
+    {
+      res.hash = cryptonote::null_hash;
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "height given is higher than current chain height";
+      return;
+    }
+
+    res.hash = m_core.get_block_id_by_height(req.height);
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBlockTemplate::Request& req, GetBlockTemplate::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const SubmitBlock::Request& req, SubmitBlock::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const GetLastBlockHeader::Request& req, GetLastBlockHeader::Response& res)
+  {
+    const crypto::hash block_hash = m_core.get_tail_id();
+
+    if (!getBlockHeaderByHash(block_hash, res.header))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Requested block does not exist";
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBlockHeaderByHash::Request& req, GetBlockHeaderByHash::Response& res)
+  {
+    if (!getBlockHeaderByHash(req.hash, res.header))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Requested block does not exist";
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBlockHeaderByHeight::Request& req, GetBlockHeaderByHeight::Response& res)
+  {
+    const crypto::hash block_hash = m_core.get_block_id_by_height(req.height);
+
+    if (!getBlockHeaderByHash(block_hash, res.header))
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Requested block does not exist";
+      return;
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBlock::Request& req, GetBlock::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  //TODO: this RPC call is marked for later implementation in the old RPC,
+  //      need to sort out if it's necessary and what it should do.
+  void DaemonHandler::handle(const GetPeerList::Request& req, GetPeerList::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const SetLogHashRate::Request& req, SetLogHashRate::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const SetLogLevel::Request& req, SetLogLevel::Response& res)
+  {
+    if (req.level < 0 || req.level > 4)
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = "Error: log level not valid";
+    }
+    else
+    {
+      res.status = Message::STATUS_OK;
+      mlog_set_log_level(req.level);
+    }
+  }
+
+  void DaemonHandler::handle(const GetTransactionPool::Request& req, GetTransactionPool::Response& res)
+  {
+    bool r = m_core.get_pool_for_rpc(res.transactions, res.key_images);
+
+    if (!r) res.status = Message::STATUS_FAILED;
+    else res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetConnections::Request& req, GetConnections::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const GetBlockHeadersRange::Request& req, GetBlockHeadersRange::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const StopDaemon::Request& req, StopDaemon::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const FastExit::Request& req, FastExit::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const OutPeers::Request& req, OutPeers::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const StartSaveGraph::Request& req, StartSaveGraph::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const StopSaveGraph::Request& req, StopSaveGraph::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const HardForkInfo::Request& req, HardForkInfo::Response& res)
+  {
+    const Blockchain &blockchain = m_core.get_blockchain_storage();
+    uint8_t version = req.version > 0 ? req.version : blockchain.get_ideal_hard_fork_version();
+    res.info.version = blockchain.get_current_hard_fork_version();
+    res.info.enabled = blockchain.get_hard_fork_voting_info(version, res.info.window, res.info.votes, res.info.threshold, res.info.earliest_height, res.info.voting);
+    res.info.state = blockchain.get_hard_fork_state();
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetBans::Request& req, GetBans::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const SetBans::Request& req, SetBans::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const FlushTransactionPool::Request& req, FlushTransactionPool::Response& res)
+  {
+    res.status = Message::STATUS_FAILED;
+    res.error_details = "RPC method not yet implemented.";
+  }
+
+  void DaemonHandler::handle(const GetOutputHistogram::Request& req, GetOutputHistogram::Response& res)
+  {
+    std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t> > histogram;
+    try
+    {
+      histogram = m_core.get_blockchain_storage().get_output_histogram(req.amounts, req.unlocked, req.recent_cutoff);
+    }
+    catch (const std::exception &e)
+    {
+      res.status = Message::STATUS_FAILED;
+      res.error_details = e.what();
+      return;
+    }
+
+    res.histogram.clear();
+    res.histogram.reserve(histogram.size());
+    for (const auto &i: histogram)
+    {
+      if (std::get<0>(i.second) >= req.min_count && (std::get<0>(i.second) <= req.max_count || req.max_count == 0))
+        res.histogram.emplace_back(output_amount_count{i.first, std::get<0>(i.second), std::get<1>(i.second), std::get<2>(i.second)});
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetOutputKeys::Request& req, GetOutputKeys::Response& res)
+  {
+    for (const auto& i : req.outputs)
+    {
+      crypto::public_key key;
+      rct::key mask;
+      bool unlocked;
+      m_core.get_blockchain_storage().get_output_key_mask_unlocked(i.amount, i.index, key, mask, unlocked);
+      res.keys.emplace_back(output_key_mask_unlocked{key, mask, unlocked});
+    }
+
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetRPCVersion::Request& req, GetRPCVersion::Response& res)
+  {
+    res.version = DAEMON_RPC_VERSION;
+    res.status = Message::STATUS_OK;
+  }
+
+  void DaemonHandler::handle(const GetPerKBFeeEstimate::Request& req, GetPerKBFeeEstimate::Response& res)
+  {
+    res.estimated_fee_per_kb = m_core.get_blockchain_storage().get_dynamic_per_kb_fee_estimate(req.num_grace_blocks);
+    res.status = Message::STATUS_OK;
+  }
+
+  bool DaemonHandler::getBlockHeaderByHash(const crypto::hash& hash_in, cryptonote::rpc::BlockHeaderResponse& header)
+  {
+    block b;
+
+    if (!m_core.get_block_by_hash(hash_in, b))
+    {
+      return false;
+    }
+
+    header.hash = hash_in;
+    header.height = boost::get<txin_gen>(b.miner_tx.vin.front()).height;
+
+    header.major_version = b.major_version;
+    header.minor_version = b.minor_version;
+    header.timestamp = b.timestamp;
+    header.nonce = b.nonce;
+    header.prev_id = b.prev_id;
+
+    header.depth = m_core.get_current_blockchain_height() - header.height - 1;
+
+    header.reward = 0;
+    for (const auto& out : b.miner_tx.vout)
+    {
+      header.reward += out.amount;
+    }
+
+    header.difficulty = m_core.get_blockchain_storage().block_difficulty(header.height);
+
+    return true;
+  }
+
+  std::string DaemonHandler::handle(const std::string& request)
+  {
+    MDEBUG("Handling RPC request: " << request);
+
+    Message* resp_message = NULL;
+
+    try
+    {
+      FullMessage req_full(request, true);
+
+      rapidjson::Value& req_json = req_full.getMessage();
+
+      const std::string request_type = req_full.getRequestType();
+
+      // create correct Message subclass and call handle() on it
+      REQ_RESP_TYPES_MACRO(request_type, GetHeight, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetBlocksFast, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetHashesFast, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetTransactions, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, KeyImagesSpent, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetTxGlobalOutputIndices, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetRandomOutputsForAmounts, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, SendRawTx, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetInfo, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, SaveBC, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetBlockHash, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetLastBlockHeader, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetBlockHeaderByHash, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetBlockHeaderByHeight, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetPeerList, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, SetLogLevel, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetTransactionPool, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, HardForkInfo, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetOutputHistogram, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetOutputKeys, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetRPCVersion, req_json, resp_message, handle);
+      REQ_RESP_TYPES_MACRO(request_type, GetPerKBFeeEstimate, req_json, resp_message, handle);
+
+      // if none of the request types matches
+      if (resp_message == NULL)
+      {
+        return BAD_REQUEST(request_type, req_full.getID());
+      }
+
+      FullMessage resp_full = FullMessage::responseMessage(resp_message, req_full.getID());
+
+      const std::string response = resp_full.getJson();
+      delete resp_message;
+      resp_message = NULL;
+
+      MDEBUG("Returning RPC response: " << response);
+
+      return response;
+    }
+    catch (const std::exception& e)
+    {
+      if (resp_message)
+      {
+        delete resp_message;
+      }
+
+      return BAD_JSON(e.what());
+    }
+  }
+
+}  // namespace rpc
+
+}  // namespace cryptonote