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diff --git a/src/blockchain_converter/blockchain_export.cpp b/src/blockchain_converter/blockchain_export.cpp
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+// Copyright (c) 2014-2015, 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 <algorithm>
+#include <cstdio>
+#include <fstream>
+#include <boost/iostreams/copy.hpp>
+#include <atomic>
+
+#include <boost/archive/binary_oarchive.hpp>
+#include <boost/archive/binary_iarchive.hpp>
+#include <boost/iostreams/stream_buffer.hpp>
+#include <boost/iostreams/stream.hpp>
+#include <boost/iostreams/device/back_inserter.hpp>
+#include <boost/iostreams/filtering_streambuf.hpp>
+#include <boost/iostreams/filter/bzip2.hpp>
+#include "common/command_line.h"
+#include "version.h"
+#include "blockchain_export.h"
+#include "cryptonote_core/cryptonote_boost_serialization.h"
+
+#include "import.h"
+
+static int max_chunk = 0;
+static size_t height;
+
+namespace po = boost::program_options;
+
+using namespace cryptonote;
+using namespace epee;
+
+bool BlockchainExport::open(const boost::filesystem::path& dir_path)
+{
+ if (boost::filesystem::exists(dir_path))
+ {
+ if (!boost::filesystem::is_directory(dir_path))
+ {
+ LOG_PRINT_RED_L0("export directory path is a file: " << dir_path);
+ return false;
+ }
+ }
+ else
+ {
+ if (!boost::filesystem::create_directory(dir_path))
+ {
+ LOG_PRINT_RED_L0("Failed to create directory " << dir_path);
+ return false;
+ }
+ }
+
+ std::string file_path = (dir_path / BLOCKCHAIN_RAW).string();
+ m_raw_data_file = new std::ofstream();
+ m_raw_data_file->open(file_path , std::ios_base::binary | std::ios_base::out| std::ios::trunc);
+ if (m_raw_data_file->fail())
+ return false;
+
+ m_output_stream = new boost::iostreams::stream<boost::iostreams::back_insert_device<buffer_type>>(m_buffer);
+ m_raw_archive = new boost::archive::binary_oarchive(*m_output_stream);
+ if (m_raw_archive == NULL)
+ return false;
+
+ return true;
+}
+
+void BlockchainExport::flush_chunk()
+{
+ m_output_stream->flush();
+ char buffer[STR_LENGTH_OF_INT + 1];
+ int chunk_size = (int) m_buffer.size();
+ if (chunk_size > BUFFER_SIZE)
+ {
+ LOG_PRINT_L0("WARNING: chunk_size " << chunk_size << " > BUFFER_SIZE " << BUFFER_SIZE);
+ }
+ sprintf(buffer, STR_FORMAT_OF_INT, chunk_size);
+ m_raw_data_file->write(buffer, STR_LENGTH_OF_INT);
+ if (max_chunk < chunk_size)
+ {
+ max_chunk = chunk_size;
+ }
+ long pos_before = m_raw_data_file->tellp();
+ std::copy(m_buffer.begin(), m_buffer.end(), std::ostreambuf_iterator<char>(*m_raw_data_file));
+ m_raw_data_file->flush();
+ long pos_after = m_raw_data_file->tellp();
+ long num_chars_written = pos_after - pos_before;
+ if ((int) num_chars_written != chunk_size)
+ {
+ LOG_PRINT_RED_L0("INTERNAL ERROR: num chars wrote NEQ buffer size. height = " << height);
+ }
+
+ m_buffer.clear();
+ delete m_raw_archive;
+ delete m_output_stream;
+ m_output_stream = new boost::iostreams::stream<boost::iostreams::back_insert_device<buffer_type>>(m_buffer);
+ m_raw_archive = new boost::archive::binary_oarchive(*m_output_stream);
+}
+
+void BlockchainExport::serialize_block_to_text_buffer(const block& block)
+{
+ *m_raw_archive << block;
+}
+
+void BlockchainExport::buffer_serialize_tx(const transaction& tx)
+{
+ *m_raw_archive << tx;
+}
+
+void BlockchainExport::buffer_write_num_txs(const std::list<transaction> txs)
+{
+ int n = txs.size();
+ *m_raw_archive << n;
+}
+
+void BlockchainExport::write_block(block& block)
+{
+ serialize_block_to_text_buffer(block);
+ std::list<transaction> txs;
+
+ uint64_t block_height = boost::get<txin_gen>(block.miner_tx.vin.front()).height;
+
+ // put coinbase transaction first
+ transaction coinbase_tx = block.miner_tx;
+ crypto::hash coinbase_tx_hash = get_transaction_hash(coinbase_tx);
+#if SOURCE_DB == DB_MEMORY
+ const transaction* cb_tx_full = m_blockchain_storage->get_tx(coinbase_tx_hash);
+#else
+ transaction cb_tx_full = m_blockchain_storage->get_db()->get_tx(coinbase_tx_hash);
+#endif
+
+#if SOURCE_DB == DB_MEMORY
+ if (cb_tx_full != NULL)
+ {
+ txs.push_back(*cb_tx_full);
+ }
+#else
+ // TODO: should check and abort if cb_tx_full equals null_hash?
+ txs.push_back(cb_tx_full);
+#endif
+
+ // now add all regular transactions
+ BOOST_FOREACH(const auto& tx_id, block.tx_hashes)
+ {
+#if SOURCE_DB == DB_MEMORY
+ const transaction* tx = m_blockchain_storage->get_tx(tx_id);
+#else
+ transaction tx = m_blockchain_storage->get_db()->get_tx(tx_id);
+#endif
+
+#if SOURCE_DB == DB_MEMORY
+ if(tx == NULL)
+ {
+ if (! m_tx_pool)
+ throw std::runtime_error("Aborting: tx == NULL, so memory pool required to get tx, but memory pool isn't enabled");
+ else
+ {
+ transaction tx;
+ if(m_tx_pool->get_transaction(tx_id, tx))
+ txs.push_back(tx);
+ else
+ throw std::runtime_error("Aborting: tx not found in pool");
+ }
+ }
+ else
+ txs.push_back(*tx);
+#else
+ txs.push_back(tx);
+#endif
+ }
+
+ // serialize all txs to the persistant storage
+ buffer_write_num_txs(txs);
+ BOOST_FOREACH(const auto& tx, txs)
+ {
+ buffer_serialize_tx(tx);
+ }
+
+ // These three attributes are currently necessary for a fast import that adds blocks without verification.
+ bool include_extra_block_data = true;
+ if (include_extra_block_data)
+ {
+#if SOURCE_DB == DB_MEMORY
+ size_t block_size = m_blockchain_storage->get_block_size(block_height);
+#else
+ size_t block_size = m_blockchain_storage->get_db()->get_block_size(block_height);
+#endif
+#if SOURCE_DB == DB_MEMORY
+ difficulty_type cumulative_difficulty = m_blockchain_storage->get_block_cumulative_difficulty(block_height);
+#else
+ difficulty_type cumulative_difficulty = m_blockchain_storage->get_db()->get_block_cumulative_difficulty(block_height);
+#endif
+#if SOURCE_DB == DB_MEMORY
+ uint64_t coins_generated = m_blockchain_storage->get_block_coins_generated(block_height);
+#else
+ // TODO TEST to verify that this is the equivalent. make sure no off-by-one error with block height vs block number
+ uint64_t coins_generated = m_blockchain_storage->get_db()->get_block_already_generated_coins(block_height);
+#endif
+
+ *m_raw_archive << block_size;
+ *m_raw_archive << cumulative_difficulty;
+ *m_raw_archive << coins_generated;
+ }
+}
+
+bool BlockchainExport::BlockchainExport::close()
+{
+ if (m_raw_data_file->fail())
+ return false;
+
+ m_raw_data_file->flush();
+ delete m_raw_archive;
+ delete m_output_stream;
+ delete m_raw_data_file;
+ return true;
+}
+
+
+#if SOURCE_DB == DB_MEMORY
+bool BlockchainExport::store_blockchain_raw(blockchain_storage* _blockchain_storage, tx_memory_pool* _tx_pool, boost::filesystem::path& output_dir, uint64_t use_block_height)
+#else
+bool BlockchainExport::store_blockchain_raw(Blockchain* _blockchain_storage, tx_memory_pool* _tx_pool, boost::filesystem::path& output_dir, uint64_t use_block_height)
+#endif
+{
+ uint64_t use_block_height2 = 0;
+ m_blockchain_storage = _blockchain_storage;
+ m_tx_pool = _tx_pool;
+ LOG_PRINT_L0("Storing blocks raw data...");
+ if (!BlockchainExport::open(output_dir))
+ {
+ LOG_PRINT_RED_L0("failed to open raw file for write");
+ return false;
+ }
+ block b;
+ LOG_PRINT_L0("source blockchain height: " << m_blockchain_storage->get_current_blockchain_height());
+ LOG_PRINT_L0("requested block height: " << use_block_height);
+ if ((use_block_height > 0) && (use_block_height < m_blockchain_storage->get_current_blockchain_height()))
+ use_block_height2 = use_block_height;
+ else
+ {
+ use_block_height2 = m_blockchain_storage->get_current_blockchain_height();
+ LOG_PRINT_L0("using block height: " << use_block_height2);
+ }
+ for (height=0; height < use_block_height2; ++height)
+ {
+ crypto::hash hash = m_blockchain_storage->get_block_id_by_height(height);
+ m_blockchain_storage->get_block_by_hash(hash, b);
+ write_block(b);
+ if (height % NUM_BLOCKS_PER_CHUNK == 0) {
+ flush_chunk();
+ }
+ }
+ if (height % NUM_BLOCKS_PER_CHUNK != 0)
+ {
+ flush_chunk();
+ }
+
+ LOG_PRINT_L0("longest chunk was " << max_chunk << " bytes");
+ return BlockchainExport::close();
+}
+
+
+int main(int argc, char* argv[])
+{
+ uint32_t log_level = 0;
+ uint64_t block_height = 0;
+ std::string import_filename = BLOCKCHAIN_RAW;
+
+ boost::filesystem::path default_data_path {tools::get_default_data_dir()};
+ boost::filesystem::path default_testnet_data_path {default_data_path / "testnet"};
+
+ po::options_description desc_cmd_only("Command line options");
+ po::options_description desc_cmd_sett("Command line options and settings options");
+ const command_line::arg_descriptor<uint32_t> arg_log_level = {"log-level", "", log_level};
+ const command_line::arg_descriptor<uint64_t> arg_block_height = {"block-number", "", block_height};
+ const command_line::arg_descriptor<bool> arg_testnet_on = {
+ "testnet"
+ , "Run on testnet."
+ , false
+ };
+
+
+ command_line::add_arg(desc_cmd_sett, command_line::arg_data_dir, default_data_path.string());
+ command_line::add_arg(desc_cmd_sett, command_line::arg_testnet_data_dir, default_testnet_data_path.string());
+ command_line::add_arg(desc_cmd_sett, arg_log_level);
+ command_line::add_arg(desc_cmd_sett, arg_block_height);
+ command_line::add_arg(desc_cmd_sett, arg_testnet_on);
+
+ command_line::add_arg(desc_cmd_only, command_line::arg_help);
+
+ po::options_description desc_options("Allowed options");
+ desc_options.add(desc_cmd_only).add(desc_cmd_sett);
+
+ po::variables_map vm;
+ bool r = command_line::handle_error_helper(desc_options, [&]()
+ {
+ po::store(po::parse_command_line(argc, argv, desc_options), vm);
+ po::notify(vm);
+ return true;
+ });
+ if (! r)
+ return 1;
+
+ if (command_line::get_arg(vm, command_line::arg_help))
+ {
+ std::cout << CRYPTONOTE_NAME << " v" << MONERO_VERSION_FULL << ENDL << ENDL;
+ std::cout << desc_options << std::endl;
+ return 1;
+ }
+
+ log_level = command_line::get_arg(vm, arg_log_level);
+ block_height = command_line::get_arg(vm, arg_block_height);
+
+ log_space::get_set_log_detalisation_level(true, log_level);
+ log_space::log_singletone::add_logger(LOGGER_CONSOLE, NULL, NULL);
+ LOG_PRINT_L0("Starting...");
+ LOG_PRINT_L0("Setting log level = " << log_level);
+
+ bool opt_testnet = command_line::get_arg(vm, arg_testnet_on);
+
+ std::string m_config_folder;
+
+ auto data_dir_arg = opt_testnet ? command_line::arg_testnet_data_dir : command_line::arg_data_dir;
+ m_config_folder = command_line::get_arg(vm, data_dir_arg);
+ boost::filesystem::path output_dir {m_config_folder};
+ output_dir /= "export";
+ LOG_PRINT_L0("Export directory: " << output_dir.string());
+
+ // If we wanted to use the memory pool, we would set up a fake_core.
+
+#if SOURCE_DB == DB_MEMORY
+ // blockchain_storage* core_storage = NULL;
+ // tx_memory_pool m_mempool(*core_storage); // is this fake anyway? just passing in NULL! so m_mempool can't be used anyway, right?
+ // core_storage = new blockchain_storage(&m_mempool);
+
+ blockchain_storage* core_storage = new blockchain_storage(NULL);
+ LOG_PRINT_L0("Initializing source blockchain (in-memory database)");
+ r = core_storage->init(m_config_folder, opt_testnet);
+#else
+ // Use Blockchain instead of lower-level BlockchainDB for two reasons:
+ // 1. Blockchain has the init() method for easy setup
+ // 2. exporter needs to use get_current_blockchain_height(), get_block_id_by_height(), get_block_by_hash()
+ //
+ // cannot match blockchain_storage setup above with just one line,
+ // e.g.
+ // Blockchain* core_storage = new Blockchain(NULL);
+ // because unlike blockchain_storage constructor, which takes a pointer to
+ // tx_memory_pool, Blockchain's constructor takes tx_memory_pool object.
+ LOG_PRINT_L0("Initializing source blockchain (BlockchainDB)");
+ Blockchain* core_storage = NULL;
+ tx_memory_pool m_mempool(*core_storage);
+ core_storage = new Blockchain(m_mempool);
+ r = core_storage->init(m_config_folder, opt_testnet);
+#endif
+
+ CHECK_AND_ASSERT_MES(r, false, "Failed to initialize source blockchain storage");
+ LOG_PRINT_L0("Source blockchain storage initialized OK");
+ LOG_PRINT_L0("Exporting blockchain raw data...");
+
+ BlockchainExport be;
+ r = be.store_blockchain_raw(core_storage, NULL, output_dir, block_height);
+ CHECK_AND_ASSERT_MES(r, false, "Failed to export blockchain raw data");
+ LOG_PRINT_L0("Blockchain raw data exported OK");
+}
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