wownero/src/blockchain_utilities/blockchain_prune_known_spent_data.cpp

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2019-03-05 21:05:34 +00:00
// 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.
#include <boost/algorithm/string.hpp>
#include "common/command_line.h"
#include "serialization/crypto.h"
#include "cryptonote_core/tx_pool.h"
#include "cryptonote_core/cryptonote_core.h"
#include "cryptonote_core/blockchain.h"
#include "blockchain_db/blockchain_db.h"
#include "blockchain_db/db_types.h"
#include "version.h"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "bcutil"
namespace po = boost::program_options;
using namespace epee;
using namespace cryptonote;
static std::map<uint64_t, uint64_t> load_outputs(const std::string &filename)
{
std::map<uint64_t, uint64_t> outputs;
uint64_t amount = std::numeric_limits<uint64_t>::max();
FILE *f;
f = fopen(filename.c_str(), "r");
if (!f)
{
MERROR("Failed to load outputs from " << filename << ": " << strerror(errno));
return {};
}
while (1)
{
char s[256];
if (!fgets(s, sizeof(s), f))
break;
if (feof(f))
break;
const size_t len = strlen(s);
if (len > 0 && s[len - 1] == '\n')
s[len - 1] = 0;
if (!s[0])
continue;
std::pair<uint64_t, uint64_t> output;
uint64_t offset, num_offsets;
if (sscanf(s, "@%" PRIu64, &amount) == 1)
{
continue;
}
if (amount == std::numeric_limits<uint64_t>::max())
{
MERROR("Bad format in " << filename);
continue;
}
if (sscanf(s, "%" PRIu64 "*%" PRIu64, &offset, &num_offsets) == 2 && num_offsets < std::numeric_limits<uint64_t>::max() - offset)
{
outputs[amount] += num_offsets;
}
else if (sscanf(s, "%" PRIu64, &offset) == 1)
{
outputs[amount] += 1;
}
else
{
MERROR("Bad format in " << filename);
continue;
}
}
fclose(f);
return outputs;
}
int main(int argc, char* argv[])
{
TRY_ENTRY();
epee::string_tools::set_module_name_and_folder(argv[0]);
std::string default_db_type = "lmdb";
std::string available_dbs = cryptonote::blockchain_db_types(", ");
available_dbs = "available: " + available_dbs;
uint32_t log_level = 0;
tools::on_startup();
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_log_level = {"log-level", "0-4 or categories", ""};
const command_line::arg_descriptor<std::string> arg_database = {
"database", available_dbs.c_str(), default_db_type
};
const command_line::arg_descriptor<bool> arg_verbose = {"verbose", "Verbose output", false};
const command_line::arg_descriptor<bool> arg_dry_run = {"dry-run", "Do not actually prune", false};
const command_line::arg_descriptor<std::string> arg_input = {"input", "Path to the known spent outputs file"};
command_line::add_arg(desc_cmd_sett, cryptonote::arg_data_dir);
command_line::add_arg(desc_cmd_sett, cryptonote::arg_testnet_on);
command_line::add_arg(desc_cmd_sett, cryptonote::arg_stagenet_on);
command_line::add_arg(desc_cmd_sett, arg_log_level);
command_line::add_arg(desc_cmd_sett, arg_database);
command_line::add_arg(desc_cmd_sett, arg_verbose);
command_line::add_arg(desc_cmd_sett, arg_dry_run);
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, [&]()
{
auto parser = po::command_line_parser(argc, argv).options(desc_options);
po::store(parser.run(), vm);
po::notify(vm);
return true;
});
if (! r)
return 1;
if (command_line::get_arg(vm, command_line::arg_help))
{
std::cout << "Monero '" << MONERO_RELEASE_NAME << "' (v" << MONERO_VERSION_FULL << ")" << ENDL << ENDL;
std::cout << desc_options << std::endl;
return 1;
}
mlog_configure(mlog_get_default_log_path("monero-blockchain-prune-known-spent-data.log"), true);
if (!command_line::is_arg_defaulted(vm, arg_log_level))
mlog_set_log(command_line::get_arg(vm, arg_log_level).c_str());
else
mlog_set_log(std::string(std::to_string(log_level) + ",bcutil:INFO").c_str());
LOG_PRINT_L0("Starting...");
std::string opt_data_dir = command_line::get_arg(vm, cryptonote::arg_data_dir);
bool opt_testnet = command_line::get_arg(vm, cryptonote::arg_testnet_on);
bool opt_stagenet = command_line::get_arg(vm, cryptonote::arg_stagenet_on);
network_type net_type = opt_testnet ? TESTNET : opt_stagenet ? STAGENET : MAINNET;
bool opt_verbose = command_line::get_arg(vm, arg_verbose);
bool opt_dry_run = command_line::get_arg(vm, arg_dry_run);
std::string db_type = command_line::get_arg(vm, arg_database);
if (!cryptonote::blockchain_valid_db_type(db_type))
{
std::cerr << "Invalid database type: " << db_type << std::endl;
return 1;
}
const std::string input = command_line::get_arg(vm, arg_input);
LOG_PRINT_L0("Initializing source blockchain (BlockchainDB)");
std::unique_ptr<Blockchain> core_storage;
tx_memory_pool m_mempool(*core_storage);
core_storage.reset(new Blockchain(m_mempool));
BlockchainDB *db = new_db(db_type);
if (db == NULL)
{
LOG_ERROR("Attempted to use non-existent database type: " << db_type);
throw std::runtime_error("Attempting to use non-existent database type");
}
LOG_PRINT_L0("database: " << db_type);
const std::string filename = (boost::filesystem::path(opt_data_dir) / db->get_db_name()).string();
LOG_PRINT_L0("Loading blockchain from folder " << filename << " ...");
try
{
db->open(filename, 0);
}
catch (const std::exception& e)
{
LOG_PRINT_L0("Error opening database: " << e.what());
return 1;
}
r = core_storage->init(db, net_type);
CHECK_AND_ASSERT_MES(r, 1, "Failed to initialize source blockchain storage");
LOG_PRINT_L0("Source blockchain storage initialized OK");
std::map<uint64_t, uint64_t> known_spent_outputs;
if (input.empty())
{
std::map<uint64_t, std::pair<uint64_t, uint64_t>> outputs;
LOG_PRINT_L0("Scanning for known spent data...");
db->for_all_transactions([&](const crypto::hash &txid, const cryptonote::transaction &tx){
const bool miner_tx = tx.vin.size() == 1 && tx.vin[0].type() == typeid(txin_gen);
for (const auto &in: tx.vin)
{
if (in.type() != typeid(txin_to_key))
continue;
const auto &txin = boost::get<txin_to_key>(in);
if (txin.amount == 0)
continue;
outputs[txin.amount].second++;
}
for (const auto &out: tx.vout)
{
uint64_t amount = out.amount;
if (miner_tx && tx.version >= 2)
amount = 0;
if (amount == 0)
continue;
if (out.target.type() != typeid(txout_to_key))
continue;
outputs[amount].first++;
}
return true;
}, true);
for (const auto &i: outputs)
{
known_spent_outputs[i.first] = i.second.second;
}
}
else
{
LOG_PRINT_L0("Loading known spent data...");
known_spent_outputs = load_outputs(input);
}
LOG_PRINT_L0("Pruning known spent data...");
bool stop_requested = false;
tools::signal_handler::install([&stop_requested](int type) {
stop_requested = true;
});
db->batch_start();
size_t num_total_outputs = 0, num_prunable_outputs = 0, num_known_spent_outputs = 0, num_eligible_outputs = 0, num_eligible_known_spent_outputs = 0;
for (auto i = known_spent_outputs.begin(); i != known_spent_outputs.end(); ++i)
{
uint64_t num_outputs = db->get_num_outputs(i->first);
num_total_outputs += num_outputs;
num_known_spent_outputs += i->second;
if (i->first == 0 || is_valid_decomposed_amount(i->first))
{
if (opt_verbose)
MINFO("Ignoring output value " << i->first << ", with " << num_outputs << " outputs");
continue;
}
num_eligible_outputs += num_outputs;
num_eligible_known_spent_outputs += i->second;
if (opt_verbose)
MINFO(i->first << ": " << i->second << "/" << num_outputs);
if (num_outputs > i->second)
continue;
if (num_outputs && num_outputs < i->second)
{
MERROR("More outputs are spent than known for amount " << i->first << ", not touching");
continue;
}
if (opt_verbose)
MINFO("Pruning data for " << num_outputs << " outputs");
if (!opt_dry_run)
db->prune_outputs(i->first);
num_prunable_outputs += i->second;
}
db->batch_stop();
MINFO("Total outputs: " << num_total_outputs);
MINFO("Known spent outputs: " << num_known_spent_outputs);
MINFO("Eligible outputs: " << num_eligible_outputs);
MINFO("Eligible known spent outputs: " << num_eligible_known_spent_outputs);
MINFO("Prunable outputs: " << num_prunable_outputs);
LOG_PRINT_L0("Blockchain known spent data pruned OK");
core_storage->deinit();
return 0;
CATCH_ENTRY("Error", 1);
}