// 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 <memory>
#include <boost/serialization/list.hpp>
#include <boost/serialization/vector.hpp>
#include <atomic>
#include "include_base_utils.h"
#include "cryptonote_core/account.h"
#include "cryptonote_core/account_boost_serialization.h"
#include "cryptonote_core/cryptonote_basic_impl.h"
#include "net/http_client.h"
#include "storages/http_abstract_invoke.h"
#include "rpc/core_rpc_server_commands_defs.h"
#include "cryptonote_core/cryptonote_format_utils.h"
#include "common/unordered_containers_boost_serialization.h"
#include "crypto/chacha8.h"
#include "crypto/hash.h"
#define DEFAULT_TX_SPENDABLE_AGE 10
#define WALLET_RCP_CONNECTION_TIMEOUT 200000
namespace tools
{
class wallet2
{
wallet2(const wallet2&){};
public:
wallet2(){};
struct transfer_details
{
uint64_t m_block_height;
cryptonote::transaction m_tx;
size_t m_internal_output_index;
uint64_t m_global_output_index;
bool m_spent;
crypto::key_image m_key_image; //TODO: key_image stored twice :(
uint64_t amount() const { return m_tx.vout[m_internal_output_index].amount; }
};
typedef std::vector<transfer_details> transfer_container;
struct tx_dust_policy
{
uint64_t dust_threshold;
bool add_to_fee;
cryptonote::account_public_address addr_for_dust;
tx_dust_policy(uint64_t a_dust_threshold = 0, bool an_add_to_fee = true, cryptonote::account_public_address an_addr_for_dust = cryptonote::account_public_address())
: dust_threshold(a_dust_threshold)
, add_to_fee(an_add_to_fee)
, addr_for_dust(an_addr_for_dust)
{
}
};
struct keys_file_data
{
crypto::chacha8_iv iv;
std::string account_data;
BEGIN_SERIALIZE_OBJECT()
FIELD(iv)
FIELD(account_data)
END_SERIALIZE()
};
struct transafer_fail_details
{
enum fail_reason
{
error_ok = 0,
error_not_connected,
error_rejected_by_daemon,
error_too_big_transaction,
error_not_enough_money,
error_internal_error
};
fail_reason reason;
uint64_t tx_blob_size;
uint64_t max_expected_tx_blob_size;
};
bool generate(const std::string& wallet, const std::string& password);
bool load(const std::string& wallet, const std::string& password);
bool store();
cryptonote::account_base& get_account(){return m_account;}
bool init(const std::string& daemon_address = "http://localhost:8080", uint64_t upper_transaction_size_limit = CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE*2 - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE);
bool refresh();
bool refresh(size_t & blocks_fetched);
bool refresh(size_t & blocks_fetched, bool& received_money);
bool deinit();
uint64_t balance();
uint64_t unlocked_balance();
void show_incoming_transfers();
template<typename T>
bool transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, size_t fake_outputs_count, uint64_t unlock_time, uint64_t fee, T destination_split_strategy, const tx_dust_policy& dust_policy);
template<typename T>
bool transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, size_t fake_outputs_count, uint64_t unlock_time, uint64_t fee, T destination_split_strategy, const tx_dust_policy& dust_policy, cryptonote::transaction &tx, transafer_fail_details& tfd);
template<typename T>
bool transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, size_t fake_outputs_count, uint64_t unlock_time, uint64_t fee, T destination_split_strategy, const tx_dust_policy& dust_policy, cryptonote::transaction &tx);
bool transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, size_t fake_outputs_count, uint64_t unlock_time, uint64_t fee);
bool transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, size_t fake_outputs_count, uint64_t unlock_time, uint64_t fee, cryptonote::transaction& tx);
bool transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, size_t fake_outputs_count, uint64_t unlock_time, uint64_t fee, cryptonote::transaction& tx, transafer_fail_details& tfd);
bool check_connection();
bool get_transfers(wallet2::transfer_container& incoming_transfers);
uint64_t get_blockchain_current_height() const { return m_local_bc_height; }
template <class t_archive>
inline void serialize(t_archive &a, const unsigned int ver)
{
if(ver < 5)
return;
a & m_blockchain;
a & m_transfers;
a & m_account_public_address;
a & m_key_images;
}
private:
bool store_keys(const std::string& keys_file_name, const std::string& password);
bool load_keys(const std::string& keys_file_name, const std::string& password);
bool process_new_transaction(cryptonote::transaction& tx, uint64_t height);
bool process_new_blockchain_entry(cryptonote::block& b, cryptonote::block_complete_entry& bche, crypto::hash& bl_id, uint64_t height);
bool detach_blockchain(uint64_t height);
bool get_short_chain_history(std::list<crypto::hash>& ids);
bool is_tx_spendtime_unlocked(uint64_t unlock_time) const;
bool is_transfer_unlocked(const transfer_details& td) const;
bool clear();
bool pull_blocks(size_t& blocks_added);
uint64_t select_transfers(uint64_t needed_money, uint64_t dust, std::list<transfer_container::iterator>& selected_transfers);
bool prepare_file_names(const std::string& file_path);
cryptonote::account_base m_account;
std::string m_daemon_address;
std::string m_wallet_file;
std::string m_keys_file;
epee::net_utils::http::http_simple_client m_http_client;
std::vector<crypto::hash> m_blockchain;
std::atomic<uint64_t> m_local_bc_height; //temporary workaround
transfer_container m_transfers;
std::unordered_map<crypto::key_image, size_t> m_key_images;
cryptonote::account_public_address m_account_public_address;
uint64_t m_upper_transaction_size_limit; //TODO: auto-calc this value or request from daemon, now use some fixed value
};
}
BOOST_CLASS_VERSION(tools::wallet2, 5)
namespace boost
{
namespace serialization
{
template <class Archive>
inline void serialize(Archive &a, tools::wallet2::transfer_details &x, const boost::serialization::version_type ver)
{
a & x.m_block_height;
a & x.m_global_output_index;
a & x.m_internal_output_index;
a & x.m_tx;
a & x.m_spent;
a & x.m_key_image;
}
}
}
namespace tools
{
namespace detail
{
//----------------------------------------------------------------------------------------------------
inline void digit_split_strategy(const std::vector<cryptonote::tx_destination_entry>& dsts,
const cryptonote::tx_destination_entry& change_dst, uint64_t dust_threshold,
std::vector<cryptonote::tx_destination_entry>& splitted_dsts, uint64_t& dust)
{
splitted_dsts.clear();
dust = 0;
BOOST_FOREACH(auto& de, dsts)
{
cryptonote::decompose_amount_into_digits(de.amount, dust_threshold,
[&](uint64_t chunk) { splitted_dsts.push_back(cryptonote::tx_destination_entry(chunk, de.addr)); },
[&](uint64_t a_dust) { splitted_dsts.push_back(cryptonote::tx_destination_entry(a_dust, de.addr)); } );
}
cryptonote::decompose_amount_into_digits(change_dst.amount, dust_threshold,
[&](uint64_t chunk) { splitted_dsts.push_back(cryptonote::tx_destination_entry(chunk, change_dst.addr)); },
[&](uint64_t a_dust) { dust = a_dust; } );
}
//----------------------------------------------------------------------------------------------------
inline void null_split_strategy(const std::vector<cryptonote::tx_destination_entry>& dsts,
const cryptonote::tx_destination_entry& change_dst, uint64_t dust_threshold,
std::vector<cryptonote::tx_destination_entry>& splitted_dsts, uint64_t& dust)
{
splitted_dsts = dsts;
dust = 0;
uint64_t change = change_dst.amount;
if (0 < dust_threshold)
{
for (uint64_t order = 10; order <= 10 * dust_threshold; order *= 10)
{
uint64_t dust_candidate = change_dst.amount % order;
uint64_t change_candidate = (change_dst.amount / order) * order;
if (dust_candidate <= dust_threshold)
{
dust = dust_candidate;
change = change_candidate;
}
else
{
break;
}
}
}
if (0 != change)
{
splitted_dsts.push_back(cryptonote::tx_destination_entry(change, change_dst.addr));
}
}
//----------------------------------------------------------------------------------------------------
inline void print_source_entry(const cryptonote::tx_source_entry& src)
{
std::string indexes;
std::for_each(src.outputs.begin(), src.outputs.end(), [&](const cryptonote::tx_source_entry::output_entry& s_e) { indexes += boost::to_string(s_e.first) + " "; });
std::cout << "amount=" << cryptonote::print_money(src.amount) << ", real_output=" <<src.real_output << ", real_output_in_tx_index=" << src.real_output_in_tx_index << ", indexes: " << indexes << ENDL;
}
//----------------------------------------------------------------------------------------------------
}
//----------------------------------------------------------------------------------------------------
template<typename T>
bool wallet2::transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, size_t fake_outputs_count,
uint64_t unlock_time, uint64_t fee, T destination_split_strategy, const tx_dust_policy& dust_policy)
{
cryptonote::transaction tx;
return transfer(dsts, fake_outputs_count, unlock_time, fee, destination_split_strategy, dust_policy, tx);
}
template<typename T>
bool wallet2::transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, size_t fake_outputs_count,
uint64_t unlock_time, uint64_t fee, T destination_split_strategy, const tx_dust_policy& dust_policy, cryptonote::transaction &tx)
{
transafer_fail_details stub = AUTO_VAL_INIT(stub);
return transfer(dsts, fake_outputs_count, unlock_time, fee, destination_split_strategy, dust_policy, tx, stub);
}
template<typename T>
bool wallet2::transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, size_t fake_outputs_count,
uint64_t unlock_time, uint64_t fee, T destination_split_strategy, const tx_dust_policy& dust_policy, cryptonote::transaction &tx, transafer_fail_details& tfd)
{
using namespace cryptonote;
uint64_t needed_money = fee;
BOOST_FOREACH(auto& dt, dsts)
{
CHECK_AND_ASSERT_MES(dt.amount > 0, false, "Wrong destination amount value: " << dt.amount);
needed_money += dt.amount;
}
std::list<transfer_container::iterator> selected_transfers;
uint64_t found_money = select_transfers(needed_money, dust_policy.dust_threshold, selected_transfers);
if(found_money < needed_money)
{
LOG_ERROR("not enough money, available only " << print_money(found_money) << ", expected " << print_money(needed_money) );
tfd.reason = transafer_fail_details::error_not_enough_money;
return false;
}
//typedef COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount outs_for_amount;
typedef COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry out_entry;
typedef cryptonote::tx_source_entry::output_entry tx_output_entry;
COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response daemon_resp = AUTO_VAL_INIT(daemon_resp);
if(fake_outputs_count)
{
COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request req = AUTO_VAL_INIT(req);
req.outs_count = fake_outputs_count + 1;// add one to make possible (if need) to skip real output key
BOOST_FOREACH(transfer_container::iterator it, selected_transfers)
{
CHECK_AND_ASSERT_MES(it->m_tx.vout.size() > it->m_internal_output_index, false, "internal error: m_internal_output_index = "
<< it->m_internal_output_index << " more than " << it->m_tx.vout.size());
req.amounts.push_back(it->amount());
}
bool r = net_utils::invoke_http_bin_remote_command2(m_daemon_address + "/getrandom_outs.bin", req, daemon_resp, m_http_client, 200000);
tfd.reason = transafer_fail_details::error_not_connected;
CHECK_AND_ASSERT_MES(r, false, "failed to get getrandom_outs");
tfd.reason = transafer_fail_details::error_internal_error;
CHECK_AND_ASSERT_MES(daemon_resp.status == CORE_RPC_STATUS_OK, false, "failed to getrandom_outs.bin");
CHECK_AND_ASSERT_MES(daemon_resp.outs.size() == selected_transfers.size(), false, "internal error: daemon returned wrong response for getrandom_outs, wrong amounts count = "
<< daemon_resp.outs.size() << ", expected " << selected_transfers.size());
}
tfd.reason = transafer_fail_details::error_ok;
//prepare inputs
size_t i = 0;
std::vector<cryptonote::tx_source_entry> sources;
BOOST_FOREACH(transfer_container::iterator it, selected_transfers)
{
sources.resize(sources.size()+1);
cryptonote::tx_source_entry& src = sources.back();
transfer_details& td = *it;
src.amount = td.amount();
//paste mixin transaction
if(daemon_resp.outs.size())
{
daemon_resp.outs[i].outs.sort([](const out_entry& a, const out_entry& b){return a.global_amount_index < b.global_amount_index;});
BOOST_FOREACH(out_entry& daemon_oe, daemon_resp.outs[i].outs)
{
if(td.m_global_output_index == daemon_oe.global_amount_index)
continue;
tx_output_entry oe;
oe.first = daemon_oe.global_amount_index;
oe.second = daemon_oe.out_key;
src.outputs.push_back(oe);
if(src.outputs.size() >= fake_outputs_count)
break;
}
}
//paste real transaction to the random index
auto it_to_insert = std::find_if(src.outputs.begin(), src.outputs.end(), [&](const tx_output_entry& a)
{
return a.first >= td.m_global_output_index;
});
//size_t real_index = src.outputs.size() ? (rand() % src.outputs.size() ):0;
tx_output_entry real_oe;
real_oe.first = td.m_global_output_index;
real_oe.second = boost::get<txout_to_key>(td.m_tx.vout[td.m_internal_output_index].target).key;
auto interted_it = src.outputs.insert(it_to_insert, real_oe);
src.real_out_tx_key = get_tx_pub_key_from_extra(td.m_tx);
src.real_output = interted_it - src.outputs.begin();
src.real_output_in_tx_index = td.m_internal_output_index;
detail::print_source_entry(src);
++i;
}
cryptonote::tx_destination_entry change_dts = AUTO_VAL_INIT(change_dts);
if (needed_money < found_money)
{
change_dts.addr = m_account.get_keys().m_account_address;
change_dts.amount = found_money - needed_money;
}
uint64_t dust = 0;
std::vector<cryptonote::tx_destination_entry> splitted_dsts;
destination_split_strategy(dsts, change_dts, dust_policy.dust_threshold, splitted_dsts, dust);
CHECK_AND_ASSERT_MES(dust <= dust_policy.dust_threshold, false, "internal error: invalid dust value");
if (0 != dust && !dust_policy.add_to_fee)
{
splitted_dsts.push_back(cryptonote::tx_destination_entry(dust, dust_policy.addr_for_dust));
}
tfd.reason = transafer_fail_details::error_internal_error;
bool r = cryptonote::construct_tx(m_account.get_keys(), sources, splitted_dsts, tx, unlock_time);
CHECK_AND_ASSERT_MES(r, false, "Transaction construction failed");
//check transaction size
if(get_object_blobsize(tx) >= m_upper_transaction_size_limit)
{
LOG_PRINT_RED("Transaction size is too big: " << get_object_blobsize(tx) << ", expected size < " << m_upper_transaction_size_limit, LOG_LEVEL_2);
tfd.reason = transafer_fail_details::error_too_big_transaction;
tfd.tx_blob_size = get_object_blobsize(tx);
tfd.max_expected_tx_blob_size = m_upper_transaction_size_limit;
return false;
}
COMMAND_RPC_SEND_RAW_TX::request req;
req.tx_as_hex = epee::string_tools::buff_to_hex_nodelimer(tx_to_blob(tx));
COMMAND_RPC_SEND_RAW_TX::response daemon_send_resp;
tfd.reason = transafer_fail_details::error_not_connected;
r = net_utils::invoke_http_json_remote_command2(m_daemon_address + "/sendrawtransaction", req, daemon_send_resp, m_http_client, 200000);
CHECK_AND_ASSERT_MES(r, false, "failed to send transaction");
if(daemon_send_resp.status != CORE_RPC_STATUS_OK)
{
tfd.reason = transafer_fail_details::error_rejected_by_daemon;
LOG_ERROR("daemon failed to accept generated transaction, id: " << get_transaction_hash(tx) );
return false;
}
std::string key_images;
std::for_each(tx.vin.begin(), tx.vin.end(), [&](const txin_v& s_e) -> bool
{
CHECKED_GET_SPECIFIC_VARIANT(s_e, const txin_to_key, in, false);
key_images += boost::to_string(in.k_image) + " ";
return true;
});
LOG_PRINT_L2("transaction " << get_transaction_hash(tx) << " generated ok and sent to daemon, key_images: [" << key_images << "]");
BOOST_FOREACH(transfer_container::iterator it, selected_transfers)
it->m_spent = true;
LOG_PRINT_L0("Transaction successfully sent. <" << get_transaction_hash(tx) << ">" << ENDL
<< "Commission: " << print_money(fee+dust) << "(dust: " << print_money(dust) << ")" << ENDL
<< "Balance: " << print_money(balance()) << ENDL
<< "Unlocked: " << print_money(unlocked_balance()) << ENDL
<< "Please, wait for confirmation for your balance to be unlocked.");
tfd.reason = transafer_fail_details::error_ok;
return true;
}
}
