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// Copyright (c) 2012-2013 The Cryptonote developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#pragma once
#include <boost/serialization/serialization.hpp>
#include <boost/serialization/version.hpp>
#include <boost/serialization/list.hpp>
#include <boost/multi_index_container.hpp>
#include <boost/multi_index/global_fun.hpp>
#include <boost/multi_index/hashed_index.hpp>
#include <boost/multi_index/member.hpp>
#include <boost/foreach.hpp>
#include <atomic>
#include "syncobj.h"
#include "string_tools.h"
#include "tx_pool.h"
#include "cryptonote_basic.h"
#include "common/util.h"
#include "cryptonote_protocol/cryptonote_protocol_defs.h"
#include "rpc/core_rpc_server_commands_defs.h"
#include "difficulty.h"
#include "cryptonote_core/cryptonote_format_utils.h"
#include "verification_context.h"
#include "crypto/hash.h"
#include "checkpoints.h"
namespace cryptonote
{
/************************************************************************/
/* */
/************************************************************************/
class blockchain_storage
{
public:
struct transaction_chain_entry
{
transaction tx;
uint64_t m_keeper_block_height;
size_t m_blob_size;
std::vector<uint64_t> m_global_output_indexes;
};
struct block_extended_info
{
block bl;
uint64_t height;
size_t block_cumulative_size;
difficulty_type cumulative_difficulty;
uint64_t already_generated_coins;
};
blockchain_storage(tx_memory_pool& tx_pool):m_tx_pool(tx_pool), m_current_block_cumul_sz_limit(0), m_is_in_checkpoint_zone(false), m_is_blockchain_storing(false)
{};
bool init() { return init(tools::get_default_data_dir()); }
bool init(const std::string& config_folder);
bool deinit();
void set_checkpoints(checkpoints&& chk_pts) { m_checkpoints = chk_pts; }
//bool push_new_block();
bool get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks, std::list<transaction>& txs);
bool get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks);
bool get_alternative_blocks(std::list<block>& blocks);
size_t get_alternative_blocks_count();
crypto::hash get_block_id_by_height(uint64_t height);
bool get_block_by_hash(const crypto::hash &h, block &blk);
void get_all_known_block_ids(std::list<crypto::hash> &main, std::list<crypto::hash> &alt, std::list<crypto::hash> &invalid);
template<class archive_t>
void serialize(archive_t & ar, const unsigned int version);
bool have_tx(const crypto::hash &id);
bool have_tx_keyimges_as_spent(const transaction &tx);
bool have_tx_keyimg_as_spent(const crypto::key_image &key_im);
transaction *get_tx(const crypto::hash &id);
template<class visitor_t>
bool scan_outputkeys_for_indexes(const txin_to_key& tx_in_to_key, visitor_t& vis, uint64_t* pmax_related_block_height = NULL);
uint64_t get_current_blockchain_height();
crypto::hash get_tail_id();
crypto::hash get_tail_id(uint64_t& height);
difficulty_type get_difficulty_for_next_block();
bool add_new_block(const block& bl_, block_verification_context& bvc);
bool reset_and_set_genesis_block(const block& b);
bool create_block_template(block& b, const account_public_address& miner_address, difficulty_type& di, uint64_t& height, const blobdata& ex_nonce);
bool have_block(const crypto::hash& id);
size_t get_total_transactions();
bool get_outs(uint64_t amount, std::list<crypto::public_key>& pkeys);
bool get_short_chain_history(std::list<crypto::hash>& ids);
bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, NOTIFY_RESPONSE_CHAIN_ENTRY::request& resp);
bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, uint64_t& starter_offset);
bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, std::list<std::pair<block, std::list<transaction> > >& blocks, uint64_t& total_height, uint64_t& start_height, size_t max_count);
bool handle_get_objects(NOTIFY_REQUEST_GET_OBJECTS::request& arg, NOTIFY_RESPONSE_GET_OBJECTS::request& rsp);
bool handle_get_objects(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res);
bool get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res);
bool get_backward_blocks_sizes(size_t from_height, std::vector<size_t>& sz, size_t count);
bool get_tx_outputs_gindexs(const crypto::hash& tx_id, std::vector<uint64_t>& indexs);
bool store_blockchain();
bool check_tx_input(const txin_to_key& txin, const crypto::hash& tx_prefix_hash, const std::vector<crypto::signature>& sig, uint64_t* pmax_related_block_height = NULL);
bool check_tx_inputs(const transaction& tx, const crypto::hash& tx_prefix_hash, uint64_t* pmax_used_block_height = NULL);
bool check_tx_inputs(const transaction& tx, uint64_t* pmax_used_block_height = NULL);
bool check_tx_inputs(const transaction& tx, uint64_t& pmax_used_block_height, crypto::hash& max_used_block_id);
uint64_t get_current_comulative_blocksize_limit();
bool is_storing_blockchain(){return m_is_blockchain_storing;}
uint64_t block_difficulty(size_t i);
template<class t_ids_container, class t_blocks_container, class t_missed_container>
bool get_blocks(const t_ids_container& block_ids, t_blocks_container& blocks, t_missed_container& missed_bs)
{
CRITICAL_REGION_LOCAL(m_blockchain_lock);
BOOST_FOREACH(const auto& bl_id, block_ids)
{
auto it = m_blocks_index.find(bl_id);
if(it == m_blocks_index.end())
missed_bs.push_back(bl_id);
else
{
CHECK_AND_ASSERT_MES(it->second < m_blocks.size(), false, "Internal error: bl_id=" << epee::string_tools::pod_to_hex(bl_id)
<< " have index record with offset="<<it->second<< ", bigger then m_blocks.size()=" << m_blocks.size());
blocks.push_back(m_blocks[it->second].bl);
}
}
return true;
}
template<class t_ids_container, class t_tx_container, class t_missed_container>
bool get_transactions(const t_ids_container& txs_ids, t_tx_container& txs, t_missed_container& missed_txs)
{
CRITICAL_REGION_LOCAL(m_blockchain_lock);
BOOST_FOREACH(const auto& tx_id, txs_ids)
{
auto it = m_transactions.find(tx_id);
if(it == m_transactions.end())
{
transaction tx;
if(!m_tx_pool.get_transaction(tx_id, tx))
missed_txs.push_back(tx_id);
else
txs.push_back(tx);
}
else
txs.push_back(it->second.tx);
}
return true;
}
//debug functions
void print_blockchain(uint64_t start_index, uint64_t end_index);
void print_blockchain_index();
void print_blockchain_outs(const std::string& file);
private:
typedef std::unordered_map<crypto::hash, size_t> blocks_by_id_index;
typedef std::unordered_map<crypto::hash, transaction_chain_entry> transactions_container;
typedef std::unordered_set<crypto::key_image> key_images_container;
typedef std::vector<block_extended_info> blocks_container;
typedef std::unordered_map<crypto::hash, block_extended_info> blocks_ext_by_hash;
typedef std::unordered_map<crypto::hash, block> blocks_by_hash;
typedef std::map<uint64_t, std::vector<std::pair<crypto::hash, size_t>>> outputs_container; //crypto::hash - tx hash, size_t - index of out in transaction
tx_memory_pool& m_tx_pool;
epee::critical_section m_blockchain_lock; // TODO: add here reader/writer lock
// main chain
blocks_container m_blocks; // height -> block_extended_info
blocks_by_id_index m_blocks_index; // crypto::hash -> height
transactions_container m_transactions;
key_images_container m_spent_keys;
size_t m_current_block_cumul_sz_limit;
// all alternative chains
blocks_ext_by_hash m_alternative_chains; // crypto::hash -> block_extended_info
// some invalid blocks
blocks_ext_by_hash m_invalid_blocks; // crypto::hash -> block_extended_info
outputs_container m_outputs;
std::string m_config_folder;
checkpoints m_checkpoints;
std::atomic<bool> m_is_in_checkpoint_zone;
std::atomic<bool> m_is_blockchain_storing;
bool switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::iterator>& alt_chain, bool discard_disconnected_chain);
bool pop_block_from_blockchain();
bool purge_block_data_from_blockchain(const block& b, size_t processed_tx_count);
bool purge_transaction_from_blockchain(const crypto::hash& tx_id);
bool purge_transaction_keyimages_from_blockchain(const transaction& tx, bool strict_check);
bool handle_block_to_main_chain(const block& bl, block_verification_context& bvc);
bool handle_block_to_main_chain(const block& bl, const crypto::hash& id, block_verification_context& bvc);
bool handle_alternative_block(const block& b, const crypto::hash& id, block_verification_context& bvc);
difficulty_type get_next_difficulty_for_alternative_chain(const std::list<blocks_ext_by_hash::iterator>& alt_chain, block_extended_info& bei);
bool prevalidate_miner_transaction(const block& b, uint64_t height);
bool validate_miner_transaction(const block& b, size_t cumulative_block_size, uint64_t fee, uint64_t& base_reward, uint64_t already_generated_coins);
bool validate_transaction(const block& b, uint64_t height, const transaction& tx);
bool rollback_blockchain_switching(std::list<block>& original_chain, size_t rollback_height);
bool add_transaction_from_block(const transaction& tx, const crypto::hash& tx_id, const crypto::hash& bl_id, uint64_t bl_height);
bool push_transaction_to_global_outs_index(const transaction& tx, const crypto::hash& tx_id, std::vector<uint64_t>& global_indexes);
bool pop_transaction_from_global_index(const transaction& tx, const crypto::hash& tx_id);
bool get_last_n_blocks_sizes(std::vector<size_t>& sz, size_t count);
bool add_out_to_get_random_outs(std::vector<std::pair<crypto::hash, size_t> >& amount_outs, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& result_outs, uint64_t amount, size_t i);
bool is_tx_spendtime_unlocked(uint64_t unlock_time);
bool add_block_as_invalid(const block& bl, const crypto::hash& h);
bool add_block_as_invalid(const block_extended_info& bei, const crypto::hash& h);
size_t find_end_of_allowed_index(const std::vector<std::pair<crypto::hash, size_t> >& amount_outs);
bool check_block_timestamp_main(const block& b);
bool check_block_timestamp(std::vector<uint64_t> timestamps, const block& b);
uint64_t get_adjusted_time();
bool complete_timestamps_vector(uint64_t start_height, std::vector<uint64_t>& timestamps);
bool update_next_comulative_size_limit();
};
/************************************************************************/
/* */
/************************************************************************/
#define CURRENT_BLOCKCHAIN_STORAGE_ARCHIVE_VER 12
template<class archive_t>
void blockchain_storage::serialize(archive_t & ar, const unsigned int version)
{
if(version < 11)
return;
CRITICAL_REGION_LOCAL(m_blockchain_lock);
ar & m_blocks;
ar & m_blocks_index;
ar & m_transactions;
ar & m_spent_keys;
ar & m_alternative_chains;
ar & m_outputs;
ar & m_invalid_blocks;
ar & m_current_block_cumul_sz_limit;
/*serialization bug workaround*/
if(version > 11)
{
uint64_t total_check_count = m_blocks.size() + m_blocks_index.size() + m_transactions.size() + m_spent_keys.size() + m_alternative_chains.size() + m_outputs.size() + m_invalid_blocks.size() + m_current_block_cumul_sz_limit;
if(archive_t::is_saving::value)
{
ar & total_check_count;
}else
{
uint64_t total_check_count_loaded = 0;
ar & total_check_count_loaded;
if(total_check_count != total_check_count_loaded)
{
LOG_ERROR("Blockchain storage data corruption detected. total_count loaded from file = " << total_check_count_loaded << ", expected = " << total_check_count);
LOG_PRINT_L0("Blockchain storage:" << ENDL <<
"m_blocks: " << m_blocks.size() << ENDL <<
"m_blocks_index: " << m_blocks_index.size() << ENDL <<
"m_transactions: " << m_transactions.size() << ENDL <<
"m_spent_keys: " << m_spent_keys.size() << ENDL <<
"m_alternative_chains: " << m_alternative_chains.size() << ENDL <<
"m_outputs: " << m_outputs.size() << ENDL <<
"m_invalid_blocks: " << m_invalid_blocks.size() << ENDL <<
"m_current_block_cumul_sz_limit: " << m_current_block_cumul_sz_limit);
throw std::runtime_error("Blockchain data corruption");
}
}
}
LOG_PRINT_L2("Blockchain storage:" << ENDL <<
"m_blocks: " << m_blocks.size() << ENDL <<
"m_blocks_index: " << m_blocks_index.size() << ENDL <<
"m_transactions: " << m_transactions.size() << ENDL <<
"m_spent_keys: " << m_spent_keys.size() << ENDL <<
"m_alternative_chains: " << m_alternative_chains.size() << ENDL <<
"m_outputs: " << m_outputs.size() << ENDL <<
"m_invalid_blocks: " << m_invalid_blocks.size() << ENDL <<
"m_current_block_cumul_sz_limit: " << m_current_block_cumul_sz_limit);
}
//------------------------------------------------------------------
template<class visitor_t>
bool blockchain_storage::scan_outputkeys_for_indexes(const txin_to_key& tx_in_to_key, visitor_t& vis, uint64_t* pmax_related_block_height)
{
CRITICAL_REGION_LOCAL(m_blockchain_lock);
auto it = m_outputs.find(tx_in_to_key.amount);
if(it == m_outputs.end() || !tx_in_to_key.key_offsets.size())
return false;
std::vector<uint64_t> absolute_offsets = relative_output_offsets_to_absolute(tx_in_to_key.key_offsets);
std::vector<std::pair<crypto::hash, size_t> >& amount_outs_vec = it->second;
size_t count = 0;
BOOST_FOREACH(uint64_t i, absolute_offsets)
{
if(i >= amount_outs_vec.size() )
{
LOG_PRINT_L0("Wrong index in transaction inputs: " << i << ", expected maximum " << amount_outs_vec.size() - 1);
return false;
}
transactions_container::iterator tx_it = m_transactions.find(amount_outs_vec[i].first);
CHECK_AND_ASSERT_MES(tx_it != m_transactions.end(), false, "Wrong transaction id in output indexes: " << epee::string_tools::pod_to_hex(amount_outs_vec[i].first));
CHECK_AND_ASSERT_MES(amount_outs_vec[i].second < tx_it->second.tx.vout.size(), false,
"Wrong index in transaction outputs: " << amount_outs_vec[i].second << ", expected less then " << tx_it->second.tx.vout.size());
if(!vis.handle_output(tx_it->second.tx, tx_it->second.tx.vout[amount_outs_vec[i].second]))
{
LOG_PRINT_L0("Failed to handle_output for output no = " << count << ", with absolute offset " << i);
return false;
}
if(count++ == absolute_offsets.size()-1 && pmax_related_block_height)
{
if(*pmax_related_block_height < tx_it->second.m_keeper_block_height)
*pmax_related_block_height = tx_it->second.m_keeper_block_height;
}
}
return true;
}
}
BOOST_CLASS_VERSION(cryptonote::blockchain_storage, CURRENT_BLOCKCHAIN_STORAGE_ARCHIVE_VER)
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