cn_deserialize: a new tool to decode blocks and transactions

src/blockchain_utilities/CMakeLists.txt

@@ -77,6 +77,16 @@ bitmonero_private_headers(blockchain_dump
 	  ${blockchain_dump_private_headers})
 
 
+set(cn_deserialize_sources
+  cn_deserialize.cpp
+  )
+
+set(cn_deserialize_private_headers)
+
+bitmonero_private_headers(cn_deserialize
+	  ${cn_deserialize_private_headers})
+
+
 if (BLOCKCHAIN_DB STREQUAL DB_LMDB)
 bitmonero_add_executable(blockchain_converter
   ${blockchain_converter_sources}
@@ -147,3 +157,19 @@ set_property(TARGET blockchain_dump
 	PROPERTY
 	OUTPUT_NAME "blockchain_dump")
 
+bitmonero_add_executable(cn_deserialize
+  ${cn_deserialize_sources}
+  ${cn_deserialize_private_headers})
+
+target_link_libraries(cn_deserialize
+  LINK_PRIVATE
+    cryptonote_core
+	p2p
+    ${CMAKE_THREAD_LIBS_INIT})
+
+add_dependencies(cn_deserialize
+	version)
+set_property(TARGET cn_deserialize
+	PROPERTY
+	OUTPUT_NAME "cn_deserialize")
+

src/blockchain_utilities/cn_deserialize.cpp

@@ -0,0 +1,170 @@
+// 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 "cryptonote_core/cryptonote_basic.h"
+#include "cryptonote_core/blockchain.h"
+#include "blockchain_utilities.h"
+#include "common/command_line.h"
+#include "version.h"
+
+unsigned int epee::g_test_dbg_lock_sleep = 0;
+
+namespace po = boost::program_options;
+using namespace epee; // log_space
+
+using namespace cryptonote;
+
+int main(int argc, char* argv[])
+{
+  uint32_t log_level = 0;
+  std::string input;
+
+  tools::sanitize_locale();
+
+  boost::filesystem::path output_file_path;
+
+  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<std::string> arg_output_file = {"output-file", "Specify output file", "", true};
+  const command_line::arg_descriptor<uint32_t> arg_log_level  = {"log-level",  "", log_level};
+  const command_line::arg_descriptor<std::string> arg_input = {"input", "Specify input has a hexadecimal string", ""};
+
+  command_line::add_arg(desc_cmd_sett, arg_output_file);
+  command_line::add_arg(desc_cmd_sett, arg_log_level);
+  command_line::add_arg(desc_cmd_sett, arg_input);
+
+  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);
+  input        = command_line::get_arg(vm, arg_input);
+  if (input.empty())
+  {
+    std::cerr << "--input is mandatory" << std::endl;
+    return 1;
+  }
+
+  log_space::get_set_log_detalisation_level(true, log_level);
+  log_space::log_singletone::add_logger(LOGGER_CONSOLE, NULL, NULL);
+
+  std::string m_config_folder;
+
+  std::ostream *output;
+  std::ofstream *raw_data_file = NULL;
+  if (command_line::has_arg(vm, arg_output_file))
+  {
+    output_file_path = boost::filesystem::path(command_line::get_arg(vm, arg_output_file));
+
+    const boost::filesystem::path dir_path = output_file_path.parent_path();
+    if (!dir_path.empty())
+    {
+      if (boost::filesystem::exists(dir_path))
+      {
+        if (!boost::filesystem::is_directory(dir_path))
+        {
+          std::cerr << "output directory path is a file: " << dir_path << std::endl;
+          return 1;
+        }
+      }
+      else
+      {
+        if (!boost::filesystem::create_directory(dir_path))
+        {
+          std::cerr << "Failed to create directory " << dir_path << std::endl;
+          return 1;
+        }
+      }
+    }
+
+    raw_data_file = new std::ofstream();
+    raw_data_file->open(output_file_path.string(), std::ios_base::out | std::ios::trunc);
+    if (raw_data_file->fail())
+      return 1;
+    output = raw_data_file;
+  }
+  else
+  {
+    output_file_path = "";
+    output = &std::cout;
+  }
+
+  cryptonote::blobdata blob;
+  if (!epee::string_tools::parse_hexstr_to_binbuff(input, blob))
+  {
+    std::cerr << "Invalid hex input" << std::endl;
+    std::cerr << "Invalid hex input: " << input << std::endl;
+    return 1;
+  }
+
+  cryptonote::block block;
+  cryptonote::transaction tx;
+  if (cryptonote::parse_and_validate_block_from_blob(blob, block))
+  {
+    std::cout << "Parsed block:" << std::endl;
+    std::cout << cryptonote::obj_to_json_str(block) << std::endl;
+  }
+  else if (cryptonote::parse_and_validate_tx_from_blob(blob, tx))
+  {
+    std::cout << "Parsed transaction:" << std::endl;
+    std::cout << cryptonote::obj_to_json_str(tx) << std::endl;
+  }
+  else
+  {
+    std::cerr << "Not a recognized CN type" << std::endl;
+    return 1;
+  }
+
+
+
+  if (output->fail())
+    return 1;
+  output->flush();
+  if (raw_data_file)
+    delete raw_data_file;
+
+  return 0;
+}