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monero/src/wallet/wallet2.cpp

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// Copyright (c) 2014-2017, 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.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
#include <random>
#include <tuple>
#include <boost/format.hpp>
#include <boost/optional/optional.hpp>
#include <boost/utility/value_init.hpp>
#include "include_base_utils.h"
using namespace epee;
#include "cryptonote_config.h"
#include "wallet2.h"
#include "wallet2_api.h"
#include "cryptonote_basic/cryptonote_format_utils.h"
#include "rpc/core_rpc_server_commands_defs.h"
#include "misc_language.h"
#include "cryptonote_basic/cryptonote_basic_impl.h"
#include "common/boost_serialization_helper.h"
#include "common/command_line.h"
#include "profile_tools.h"
#include "crypto/crypto.h"
#include "serialization/binary_utils.h"
#include "cryptonote_protocol/blobdatatype.h"
#include "mnemonics/electrum-words.h"
#include "common/i18n.h"
#include "common/util.h"
#include "rapidjson/document.h"
#include "rapidjson/writer.h"
#include "rapidjson/stringbuffer.h"
#include "common/json_util.h"
#include "common/base58.h"
#include "common/scoped_message_writer.h"
#include "ringct/rctSigs.h"
extern "C"
{
#include "crypto/keccak.h"
#include "crypto/crypto-ops.h"
}
using namespace cryptonote;
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "wallet.wallet2"
// used to choose when to stop adding outputs to a tx
#define APPROXIMATE_INPUT_BYTES 80
// used to target a given block size (additional outputs may be added on top to build fee)
#define TX_SIZE_TARGET(bytes) (bytes*2/3)
// arbitrary, used to generate different hashes from the same input
#define CHACHA8_KEY_TAIL 0x8c
#define UNSIGNED_TX_PREFIX "Monero unsigned tx set\003"
#define SIGNED_TX_PREFIX "Monero signed tx set\003"
#define RECENT_OUTPUT_RATIO (0.5) // 50% of outputs are from the recent zone
#define RECENT_OUTPUT_ZONE ((time_t)(1.8 * 86400)) // last 1.8 day makes up the recent zone (taken from monerolink.pdf, Miller et al)
#define FEE_ESTIMATE_GRACE_BLOCKS 10 // estimate fee valid for that many blocks
#define SECOND_OUTPUT_RELATEDNESS_THRESHOLD 0.0f
#define KILL_IOSERVICE() \
do { \
work.reset(); \
while (!ioservice.stopped()) ioservice.poll(); \
threadpool.join_all(); \
ioservice.stop(); \
} while(0)
#define KEY_IMAGE_EXPORT_FILE_MAGIC "Monero key image export\002"
namespace
{
// Create on-demand to prevent static initialization order fiasco issues.
struct options {
const command_line::arg_descriptor<std::string> daemon_address = {"daemon-address", tools::wallet2::tr("Use daemon instance at <host>:<port>"), ""};
const command_line::arg_descriptor<std::string> daemon_host = {"daemon-host", tools::wallet2::tr("Use daemon instance at host <arg> instead of localhost"), ""};
const command_line::arg_descriptor<std::string> password = {"password", tools::wallet2::tr("Wallet password (escape/quote as needed)"), "", true};
const command_line::arg_descriptor<std::string> password_file = {"password-file", tools::wallet2::tr("Wallet password file"), "", true};
const command_line::arg_descriptor<int> daemon_port = {"daemon-port", tools::wallet2::tr("Use daemon instance at port <arg> instead of 18081"), 0};
const command_line::arg_descriptor<std::string> daemon_login = {"daemon-login", tools::wallet2::tr("Specify username[:password] for daemon RPC client"), "", true};
const command_line::arg_descriptor<bool> testnet = {"testnet", tools::wallet2::tr("For testnet. Daemon must also be launched with --testnet flag"), false};
const command_line::arg_descriptor<bool> restricted = {"restricted-rpc", tools::wallet2::tr("Restricts to view-only commands"), false};
};
void do_prepare_file_names(const std::string& file_path, std::string& keys_file, std::string& wallet_file)
{
keys_file = file_path;
wallet_file = file_path;
boost::system::error_code e;
if(string_tools::get_extension(keys_file) == "keys")
{//provided keys file name
wallet_file = string_tools::cut_off_extension(wallet_file);
}else
{//provided wallet file name
keys_file += ".keys";
}
}
uint64_t calculate_fee(uint64_t fee_per_kb, size_t bytes, uint64_t fee_multiplier)
{
uint64_t kB = (bytes + 1023) / 1024;
return kB * fee_per_kb * fee_multiplier;
}
uint64_t calculate_fee(uint64_t fee_per_kb, const cryptonote::blobdata &blob, uint64_t fee_multiplier)
{
return calculate_fee(fee_per_kb, blob.size(), fee_multiplier);
}
std::unique_ptr<tools::wallet2> make_basic(const boost::program_options::variables_map& vm, const options& opts)
{
const bool testnet = command_line::get_arg(vm, opts.testnet);
const bool restricted = command_line::get_arg(vm, opts.restricted);
auto daemon_address = command_line::get_arg(vm, opts.daemon_address);
auto daemon_host = command_line::get_arg(vm, opts.daemon_host);
auto daemon_port = command_line::get_arg(vm, opts.daemon_port);
if (!daemon_address.empty() && !daemon_host.empty() && 0 != daemon_port)
{
tools::fail_msg_writer() << tools::wallet2::tr("can't specify daemon host or port more than once");
return nullptr;
}
boost::optional<epee::net_utils::http::login> login{};
if (command_line::has_arg(vm, opts.daemon_login))
{
auto parsed = tools::login::parse(
command_line::get_arg(vm, opts.daemon_login), false, "Daemon client password"
);
if (!parsed)
return nullptr;
login.emplace(std::move(parsed->username), std::move(parsed->password).password());
}
if (daemon_host.empty())
daemon_host = "localhost";
if (!daemon_port)
{
daemon_port = testnet ? config::testnet::RPC_DEFAULT_PORT : config::RPC_DEFAULT_PORT;
}
if (daemon_address.empty())
daemon_address = std::string("http://") + daemon_host + ":" + std::to_string(daemon_port);
std::unique_ptr<tools::wallet2> wallet(new tools::wallet2(testnet, restricted));
wallet->init(std::move(daemon_address), std::move(login));
return wallet;
}
boost::optional<tools::password_container> get_password(const boost::program_options::variables_map& vm, const options& opts, const bool verify)
{
if (command_line::has_arg(vm, opts.password) && command_line::has_arg(vm, opts.password_file))
{
tools::fail_msg_writer() << tools::wallet2::tr("can't specify more than one of --password and --password-file");
return boost::none;
}
if (command_line::has_arg(vm, opts.password))
{
return tools::password_container{command_line::get_arg(vm, opts.password)};
}
if (command_line::has_arg(vm, opts.password_file))
{
std::string password;
bool r = epee::file_io_utils::load_file_to_string(command_line::get_arg(vm, opts.password_file),
password);
if (!r)
{
tools::fail_msg_writer() << tools::wallet2::tr("the password file specified could not be read");
return boost::none;
}
// Remove line breaks the user might have inserted
boost::trim_right_if(password, boost::is_any_of("\r\n"));
return {tools::password_container{std::move(password)}};
}
return tools::wallet2::password_prompt(verify);
}
std::unique_ptr<tools::wallet2> generate_from_json(const std::string& json_file, const boost::program_options::variables_map& vm, const options& opts)
{
const bool testnet = command_line::get_arg(vm, opts.testnet);
/* GET_FIELD_FROM_JSON_RETURN_ON_ERROR Is a generic macro that can return
false. Gcc will coerce this into unique_ptr(nullptr), but clang correctly
fails. This large wrapper is for the use of that macro */
std::unique_ptr<tools::wallet2> wallet;
const auto do_generate = [&]() -> bool {
std::string buf;
if (!epee::file_io_utils::load_file_to_string(json_file, buf)) {
tools::fail_msg_writer() << tools::wallet2::tr("Failed to load file ") << json_file;
return false;
}
rapidjson::Document json;
if (json.Parse(buf.c_str()).HasParseError()) {
tools::fail_msg_writer() << tools::wallet2::tr("Failed to parse JSON");
return false;
}
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, version, unsigned, Uint, true, 0);
const int current_version = 1;
if (field_version > current_version) {
tools::fail_msg_writer() << boost::format(tools::wallet2::tr("Version %u too new, we can only grok up to %u")) % field_version % current_version;
return false;
}
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, filename, std::string, String, true, std::string());
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, scan_from_height, uint64_t, Uint64, false, 0);
const bool recover = field_scan_from_height_found;
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, password, std::string, String, false, std::string());
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, viewkey, std::string, String, false, std::string());
crypto::secret_key viewkey;
if (field_viewkey_found)
{
cryptonote::blobdata viewkey_data;
if(!epee::string_tools::parse_hexstr_to_binbuff(field_viewkey, viewkey_data) || viewkey_data.size() != sizeof(crypto::secret_key))
{
tools::fail_msg_writer() << tools::wallet2::tr("failed to parse view key secret key");
return false;
}
viewkey = *reinterpret_cast<const crypto::secret_key*>(viewkey_data.data());
crypto::public_key pkey;
if (!crypto::secret_key_to_public_key(viewkey, pkey)) {
tools::fail_msg_writer() << tools::wallet2::tr("failed to verify view key secret key");
return false;
}
}
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, spendkey, std::string, String, false, std::string());
crypto::secret_key spendkey;
if (field_spendkey_found)
{
cryptonote::blobdata spendkey_data;
if(!epee::string_tools::parse_hexstr_to_binbuff(field_spendkey, spendkey_data) || spendkey_data.size() != sizeof(crypto::secret_key))
{
tools::fail_msg_writer() << tools::wallet2::tr("failed to parse spend key secret key");
return false;
}
spendkey = *reinterpret_cast<const crypto::secret_key*>(spendkey_data.data());
crypto::public_key pkey;
if (!crypto::secret_key_to_public_key(spendkey, pkey)) {
tools::fail_msg_writer() << tools::wallet2::tr("failed to verify spend key secret key");
return false;
}
}
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, seed, std::string, String, false, std::string());
std::string old_language;
crypto::secret_key recovery_key;
bool restore_deterministic_wallet = false;
if (field_seed_found)
{
if (!crypto::ElectrumWords::words_to_bytes(field_seed, recovery_key, old_language))
{
tools::fail_msg_writer() << tools::wallet2::tr("Electrum-style word list failed verification");
return false;
}
restore_deterministic_wallet = true;
}
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, address, std::string, String, false, std::string());
// compatibility checks
if (!field_seed_found && !field_viewkey_found)
{
tools::fail_msg_writer() << tools::wallet2::tr("At least one of Electrum-style word list and private view key must be specified");
return false;
}
if (field_seed_found && (field_viewkey_found || field_spendkey_found))
{
tools::fail_msg_writer() << tools::wallet2::tr("Both Electrum-style word list and private key(s) specified");
return false;
}
// if an address was given, we check keys against it, and deduce the spend
// public key if it was not given
if (field_address_found)
{
cryptonote::account_public_address address;
bool has_payment_id;
crypto::hash8 new_payment_id;
if(!get_account_integrated_address_from_str(address, has_payment_id, new_payment_id, testnet, field_address))
{
tools::fail_msg_writer() << tools::wallet2::tr("invalid address");
return false;
}
if (field_viewkey_found)
{
crypto::public_key pkey;
if (!crypto::secret_key_to_public_key(viewkey, pkey)) {
tools::fail_msg_writer() << tools::wallet2::tr("failed to verify view key secret key");
return false;
}
if (address.m_view_public_key != pkey) {
tools::fail_msg_writer() << tools::wallet2::tr("view key does not match standard address");
return false;
}
}
if (field_spendkey_found)
{
crypto::public_key pkey;
if (!crypto::secret_key_to_public_key(spendkey, pkey)) {
tools::fail_msg_writer() << tools::wallet2::tr("failed to verify spend key secret key");
return false;
}
if (address.m_spend_public_key != pkey) {
tools::fail_msg_writer() << tools::wallet2::tr("spend key does not match standard address");
return false;
}
}
}
const bool deprecated_wallet = restore_deterministic_wallet && ((old_language == crypto::ElectrumWords::old_language_name) ||
crypto::ElectrumWords::get_is_old_style_seed(field_seed));
if (deprecated_wallet) {
tools::fail_msg_writer() << tools::wallet2::tr("Cannot create deprecated wallets from JSON");
return false;
}
wallet.reset(make_basic(vm, opts).release());
wallet->set_refresh_from_block_height(field_scan_from_height);
try
{
if (!field_seed.empty())
{
wallet->generate(field_filename, field_password, recovery_key, recover, false);
}
else
{
cryptonote::account_public_address address;
if (!crypto::secret_key_to_public_key(viewkey, address.m_view_public_key)) {
tools::fail_msg_writer() << tools::wallet2::tr("failed to verify view key secret key");
return false;
}
if (field_spendkey.empty())
{
// if we have an addres but no spend key, we can deduce the spend public key
// from the address
if (field_address_found)
{
cryptonote::account_public_address address2;
bool has_payment_id;
crypto::hash8 new_payment_id;
get_account_integrated_address_from_str(address2, has_payment_id, new_payment_id, testnet, field_address);
address.m_spend_public_key = address2.m_spend_public_key;
}
wallet->generate(field_filename, field_password, address, viewkey);
}
else
{
if (!crypto::secret_key_to_public_key(spendkey, address.m_spend_public_key)) {
tools::fail_msg_writer() << tools::wallet2::tr("failed to verify spend key secret key");
return false;
}
wallet->generate(field_filename, field_password, address, spendkey, viewkey);
}
}
}
catch (const std::exception& e)
{
tools::fail_msg_writer() << tools::wallet2::tr("failed to generate new wallet: ") << e.what();
return false;
}
return true;
};
if (do_generate())
{
return wallet;
}
return nullptr;
}
static void throw_on_rpc_response_error(const boost::optional<std::string> &status, const char *method)
{
// no error
if (!status)
return;
// empty string -> not connection
THROW_WALLET_EXCEPTION_IF(status->empty(), tools::error::no_connection_to_daemon, method);
THROW_WALLET_EXCEPTION_IF(*status == CORE_RPC_STATUS_BUSY, tools::error::daemon_busy, method);
THROW_WALLET_EXCEPTION_IF(*status != CORE_RPC_STATUS_OK, tools::error::wallet_generic_rpc_error, method, *status);
}
} //namespace
namespace tools
{
// for now, limit to 30 attempts. TODO: discuss a good number to limit to.
const size_t MAX_SPLIT_ATTEMPTS = 30;
constexpr const std::chrono::seconds wallet2::rpc_timeout;
const char* wallet2::tr(const char* str) { return i18n_translate(str, "tools::wallet2"); }
bool wallet2::has_testnet_option(const boost::program_options::variables_map& vm)
{
return command_line::get_arg(vm, options().testnet);
}
void wallet2::init_options(boost::program_options::options_description& desc_params)
{
const options opts{};
command_line::add_arg(desc_params, opts.daemon_address);
command_line::add_arg(desc_params, opts.daemon_host);
command_line::add_arg(desc_params, opts.password);
command_line::add_arg(desc_params, opts.password_file);
command_line::add_arg(desc_params, opts.daemon_port);
command_line::add_arg(desc_params, opts.daemon_login);
command_line::add_arg(desc_params, opts.testnet);
command_line::add_arg(desc_params, opts.restricted);
}
boost::optional<password_container> wallet2::password_prompt(const bool new_password)
{
auto pwd_container = tools::password_container::prompt(
new_password, (new_password ? tr("Enter new wallet password") : tr("Wallet password"))
);
if (!pwd_container)
{
tools::fail_msg_writer() << tr("failed to read wallet password");
}
return pwd_container;
}
std::unique_ptr<wallet2> wallet2::make_from_json(const boost::program_options::variables_map& vm, const std::string& json_file)
{
const options opts{};
return generate_from_json(json_file, vm, opts);
}
std::pair<std::unique_ptr<wallet2>, password_container> wallet2::make_from_file(
const boost::program_options::variables_map& vm, const std::string& wallet_file)
{
const options opts{};
auto pwd = get_password(vm, opts, false);
if (!pwd)
{
return {nullptr, password_container{}};
}
auto wallet = make_basic(vm, opts);
if (wallet)
{
wallet->load(wallet_file, pwd->password());
}
return {std::move(wallet), std::move(*pwd)};
}
std::pair<std::unique_ptr<wallet2>, password_container> wallet2::make_new(const boost::program_options::variables_map& vm)
{
const options opts{};
auto pwd = get_password(vm, opts, true);
if (!pwd)
{
return {nullptr, password_container{}};
}
return {make_basic(vm, opts), std::move(*pwd)};
}
std::unique_ptr<wallet2> wallet2::make_dummy(const boost::program_options::variables_map& vm)
{
const options opts{};
return make_basic(vm, opts);
}
//----------------------------------------------------------------------------------------------------
bool wallet2::init(std::string daemon_address, boost::optional<epee::net_utils::http::login> daemon_login, uint64_t upper_transaction_size_limit)
{
if(m_http_client.is_connected())
m_http_client.disconnect();
m_is_initialized = true;
m_upper_transaction_size_limit = upper_transaction_size_limit;
m_daemon_address = std::move(daemon_address);
m_daemon_login = std::move(daemon_login);
return m_http_client.set_server(get_daemon_address(), get_daemon_login());
}
//----------------------------------------------------------------------------------------------------
bool wallet2::is_deterministic() const
{
crypto::secret_key second;
keccak((uint8_t *)&get_account().get_keys().m_spend_secret_key, sizeof(crypto::secret_key), (uint8_t *)&second, sizeof(crypto::secret_key));
sc_reduce32((uint8_t *)&second);
bool keys_deterministic = memcmp(second.data,get_account().get_keys().m_view_secret_key.data, sizeof(crypto::secret_key)) == 0;
return keys_deterministic;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::get_seed(std::string& electrum_words) const
{
bool keys_deterministic = is_deterministic();
if (!keys_deterministic)
{
std::cout << "This is not a deterministic wallet" << std::endl;
return false;
}
if (seed_language.empty())
{
std::cout << "seed_language not set" << std::endl;
return false;
}
crypto::ElectrumWords::bytes_to_words(get_account().get_keys().m_spend_secret_key, electrum_words, seed_language);
return true;
}
/*!
* \brief Gets the seed language
*/
const std::string &wallet2::get_seed_language() const
{
return seed_language;
}
/*!
* \brief Sets the seed language
* \param language Seed language to set to
*/
void wallet2::set_seed_language(const std::string &language)
{
seed_language = language;
}
/*!
* \brief Tells if the wallet file is deprecated.
*/
bool wallet2::is_deprecated() const
{
return is_old_file_format;
}
//----------------------------------------------------------------------------------------------------
void wallet2::set_spent(size_t idx, uint64_t height)
{
transfer_details &td = m_transfers[idx];
LOG_PRINT_L2("Setting SPENT at " << height << ": ki " << td.m_key_image << ", amount " << print_money(td.m_amount));
td.m_spent = true;
td.m_spent_height = height;
}
//----------------------------------------------------------------------------------------------------
void wallet2::set_unspent(size_t idx)
{
transfer_details &td = m_transfers[idx];
LOG_PRINT_L2("Setting UNSPENT: ki " << td.m_key_image << ", amount " << print_money(td.m_amount));
td.m_spent = false;
td.m_spent_height = 0;
}
//----------------------------------------------------------------------------------------------------
void wallet2::check_acc_out_precomp(const crypto::public_key &spend_public_key, const tx_out &o, const crypto::key_derivation &derivation, size_t i, bool &received, uint64_t &money_transfered, bool &error) const
{
if (o.target.type() != typeid(txout_to_key))
{
error = true;
LOG_ERROR("wrong type id in transaction out");
return;
}
received = is_out_to_acc_precomp(spend_public_key, boost::get<txout_to_key>(o.target), derivation, i);
if(received)
{
money_transfered = o.amount; // may be 0 for ringct outputs
}
else
{
money_transfered = 0;
}
error = false;
}
//----------------------------------------------------------------------------------------------------
static uint64_t decodeRct(const rct::rctSig & rv, const crypto::public_key &pub, const crypto::secret_key &sec, unsigned int i, rct::key & mask)
{
crypto::key_derivation derivation;
bool r = crypto::generate_key_derivation(pub, sec, derivation);
if (!r)
{
LOG_ERROR("Failed to generate key derivation to decode rct output " << i);
return 0;
}
crypto::secret_key scalar1;
crypto::derivation_to_scalar(derivation, i, scalar1);
try
{
switch (rv.type)
{
case rct::RCTTypeSimple:
return rct::decodeRctSimple(rv, rct::sk2rct(scalar1), i, mask);
case rct::RCTTypeFull:
return rct::decodeRct(rv, rct::sk2rct(scalar1), i, mask);
default:
LOG_ERROR("Unsupported rct type: " << rv.type);
return 0;
}
}
catch (const std::exception &e)
{
LOG_ERROR("Failed to decode input " << i);
return 0;
}
}
//----------------------------------------------------------------------------------------------------
bool wallet2::wallet_generate_key_image_helper(const cryptonote::account_keys& ack, const crypto::public_key& tx_public_key, size_t real_output_index, cryptonote::keypair& in_ephemeral, crypto::key_image& ki)
{
if (!cryptonote::generate_key_image_helper(ack, tx_public_key, real_output_index, in_ephemeral, ki))
return false;
return true;
}
//----------------------------------------------------------------------------------------------------
void wallet2::process_new_transaction(const crypto::hash &txid, const cryptonote::transaction& tx, const std::vector<uint64_t> &o_indices, uint64_t height, uint64_t ts, bool miner_tx, bool pool)
{
// In this function, tx (probably) only contains the base information
// (that is, the prunable stuff may or may not be included)
if (!miner_tx)
process_unconfirmed(txid, tx, height);
std::vector<size_t> outs;
uint64_t tx_money_got_in_outs = 0;
crypto::public_key tx_pub_key = null_pkey;
std::vector<tx_extra_field> tx_extra_fields;
if(!parse_tx_extra(tx.extra, tx_extra_fields))
{
// Extra may only be partially parsed, it's OK if tx_extra_fields contains public key
LOG_PRINT_L0("Transaction extra has unsupported format: " << txid);
}
// Don't try to extract tx public key if tx has no ouputs
size_t pk_index = 0;
while (!tx.vout.empty())
{
// if tx.vout is not empty, we loop through all tx pubkeys
tx_extra_pub_key pub_key_field;
if(!find_tx_extra_field_by_type(tx_extra_fields, pub_key_field, pk_index++))
{
if (pk_index > 1)
break;
LOG_PRINT_L0("Public key wasn't found in the transaction extra. Skipping transaction " << txid);
if(0 != m_callback)
m_callback->on_skip_transaction(height, txid, tx);
return;
}
int num_vouts_received = 0;
tx_pub_key = pub_key_field.pub_key;
bool r = true;
std::deque<cryptonote::keypair> in_ephemeral(tx.vout.size());
std::deque<crypto::key_image> ki(tx.vout.size());
std::deque<uint64_t> amount(tx.vout.size());
std::deque<rct::key> mask(tx.vout.size());
int threads = tools::get_max_concurrency();
const cryptonote::account_keys& keys = m_account.get_keys();
crypto::key_derivation derivation;
generate_key_derivation(tx_pub_key, keys.m_view_secret_key, derivation);
if (miner_tx && m_refresh_type == RefreshNoCoinbase)
{
// assume coinbase isn't for us
}
else if (miner_tx && m_refresh_type == RefreshOptimizeCoinbase)
{
uint64_t money_transfered = 0;
bool error = false, received = false;
check_acc_out_precomp(keys.m_account_address.m_spend_public_key, tx.vout[0], derivation, 0, received, money_transfered, error);
if (error)
{
r = false;
}
else
{
// this assumes that the miner tx pays a single address
if (received)
{
wallet_generate_key_image_helper(keys, tx_pub_key, 0, in_ephemeral[0], ki[0]);
THROW_WALLET_EXCEPTION_IF(in_ephemeral[0].pub != boost::get<cryptonote::txout_to_key>(tx.vout[0].target).key,
error::wallet_internal_error, "key_image generated ephemeral public key not matched with output_key");
outs.push_back(0);
if (money_transfered == 0)
{
money_transfered = tools::decodeRct(tx.rct_signatures, pub_key_field.pub_key, keys.m_view_secret_key, 0, mask[0]);
}
amount[0] = money_transfered;
tx_money_got_in_outs = money_transfered;
++num_vouts_received;
// process the other outs from that tx
boost::asio::io_service ioservice;
boost::thread_group threadpool;
std::unique_ptr < boost::asio::io_service::work > work(new boost::asio::io_service::work(ioservice));
for (int i = 0; i < threads; i++)
{
threadpool.create_thread(boost::bind(&boost::asio::io_service::run, &ioservice));
}
std::vector<uint64_t> money_transfered(tx.vout.size());
std::deque<bool> error(tx.vout.size());
std::deque<bool> received(tx.vout.size());
// the first one was already checked
for (size_t i = 1; i < tx.vout.size(); ++i)
{
ioservice.dispatch(boost::bind(&wallet2::check_acc_out_precomp, this, std::cref(keys.m_account_address.m_spend_public_key), std::cref(tx.vout[i]), std::cref(derivation), i,
std::ref(received[i]), std::ref(money_transfered[i]), std::ref(error[i])));
}
KILL_IOSERVICE();
for (size_t i = 1; i < tx.vout.size(); ++i)
{
if (error[i])
{
r = false;
break;
}
if (received[i])
{
wallet_generate_key_image_helper(keys, tx_pub_key, i, in_ephemeral[i], ki[i]);
THROW_WALLET_EXCEPTION_IF(in_ephemeral[i].pub != boost::get<cryptonote::txout_to_key>(tx.vout[i].target).key,
error::wallet_internal_error, "key_image generated ephemeral public key not matched with output_key");
outs.push_back(i);
if (money_transfered[i] == 0)
{
money_transfered[i] = tools::decodeRct(tx.rct_signatures, pub_key_field.pub_key, keys.m_view_secret_key, i, mask[i]);
}
tx_money_got_in_outs += money_transfered[i];
amount[i] = money_transfered[i];
++num_vouts_received;
}
}
}
}
}
else if (tx.vout.size() > 1 && threads > 1)
{
boost::asio::io_service ioservice;
boost::thread_group threadpool;
std::unique_ptr < boost::asio::io_service::work > work(new boost::asio::io_service::work(ioservice));
for (int i = 0; i < threads; i++)
{
threadpool.create_thread(boost::bind(&boost::asio::io_service::run, &ioservice));
}
std::vector<uint64_t> money_transfered(tx.vout.size());
std::deque<bool> error(tx.vout.size());
std::deque<bool> received(tx.vout.size());
for (size_t i = 0; i < tx.vout.size(); ++i)
{
ioservice.dispatch(boost::bind(&wallet2::check_acc_out_precomp, this, std::cref(keys.m_account_address.m_spend_public_key), std::cref(tx.vout[i]), std::cref(derivation), i,
std::ref(received[i]), std::ref(money_transfered[i]), std::ref(error[i])));
}
KILL_IOSERVICE();
tx_money_got_in_outs = 0;
for (size_t i = 0; i < tx.vout.size(); ++i)
{
if (error[i])
{
r = false;
break;
}
if (received[i])
{
wallet_generate_key_image_helper(keys, tx_pub_key, i, in_ephemeral[i], ki[i]);
THROW_WALLET_EXCEPTION_IF(in_ephemeral[i].pub != boost::get<cryptonote::txout_to_key>(tx.vout[i].target).key,
error::wallet_internal_error, "key_image generated ephemeral public key not matched with output_key");
outs.push_back(i);
if (money_transfered[i] == 0)
{
money_transfered[i] = tools::decodeRct(tx.rct_signatures, pub_key_field.pub_key, keys.m_view_secret_key, i, mask[i]);
}
tx_money_got_in_outs += money_transfered[i];
amount[i] = money_transfered[i];
++num_vouts_received;
}
}
}
else
{
for (size_t i = 0; i < tx.vout.size(); ++i)
{
uint64_t money_transfered = 0;
bool error = false, received = false;
check_acc_out_precomp(keys.m_account_address.m_spend_public_key, tx.vout[i], derivation, i, received, money_transfered, error);
if (error)
{
r = false;
break;
}
else
{
if (received)
{
wallet_generate_key_image_helper(keys, tx_pub_key, i, in_ephemeral[i], ki[i]);
THROW_WALLET_EXCEPTION_IF(in_ephemeral[i].pub != boost::get<cryptonote::txout_to_key>(tx.vout[i].target).key,
error::wallet_internal_error, "key_image generated ephemeral public key not matched with output_key");
outs.push_back(i);
if (money_transfered == 0)
{
money_transfered = tools::decodeRct(tx.rct_signatures, pub_key_field.pub_key, keys.m_view_secret_key, i, mask[i]);
}
amount[i] = money_transfered;
tx_money_got_in_outs += money_transfered;
++num_vouts_received;
}
}
}
}
THROW_WALLET_EXCEPTION_IF(!r, error::acc_outs_lookup_error, tx, tx_pub_key, m_account.get_keys());
if(!outs.empty() && num_vouts_received > 0)
{
//good news - got money! take care about it
//usually we have only one transfer for user in transaction
if (!pool)
{
THROW_WALLET_EXCEPTION_IF(tx.vout.size() != o_indices.size(), error::wallet_internal_error,
"transactions outputs size=" + std::to_string(tx.vout.size()) +
" not match with daemon response size=" + std::to_string(o_indices.size()));
}
for(size_t o: outs)
{
THROW_WALLET_EXCEPTION_IF(tx.vout.size() <= o, error::wallet_internal_error, "wrong out in transaction: internal index=" +
std::to_string(o) + ", total_outs=" + std::to_string(tx.vout.size()));
auto kit = m_pub_keys.find(in_ephemeral[o].pub);
THROW_WALLET_EXCEPTION_IF(kit != m_pub_keys.end() && kit->second >= m_transfers.size(),
error::wallet_internal_error, std::string("Unexpected transfer index from public key: ")
+ "got " + (kit == m_pub_keys.end() ? "<none>" : boost::lexical_cast<std::string>(kit->second))
+ ", m_transfers.size() is " + boost::lexical_cast<std::string>(m_transfers.size()));
if (kit == m_pub_keys.end())
{
if (!pool)
{
m_transfers.push_back(boost::value_initialized<transfer_details>());
transfer_details& td = m_transfers.back();
td.m_block_height = height;
td.m_internal_output_index = o;
td.m_global_output_index = o_indices[o];
td.m_tx = (const cryptonote::transaction_prefix&)tx;
td.m_txid = txid;
td.m_key_image = ki[o];
td.m_key_image_known = !m_watch_only;
td.m_amount = tx.vout[o].amount;
td.m_pk_index = pk_index - 1;
if (td.m_amount == 0)
{
td.m_mask = mask[o];
td.m_amount = amount[o];
td.m_rct = true;
}
else if (miner_tx && tx.version == 2)
{
td.m_mask = rct::identity();
td.m_rct = true;
}
else
{
td.m_mask = rct::identity();
td.m_rct = false;
}
set_unspent(m_transfers.size()-1);
m_key_images[td.m_key_image] = m_transfers.size()-1;
m_pub_keys[in_ephemeral[o].pub] = m_transfers.size()-1;
LOG_PRINT_L0("Received money: " << print_money(td.amount()) << ", with tx: " << txid);
if (0 != m_callback)
m_callback->on_money_received(height, txid, tx, td.m_amount);
}
}
else if (m_transfers[kit->second].m_spent || m_transfers[kit->second].amount() >= tx.vout[o].amount)
{
LOG_ERROR("Public key " << epee::string_tools::pod_to_hex(kit->first)
<< " from received " << print_money(tx.vout[o].amount) << " output already exists with "
<< (m_transfers[kit->second].m_spent ? "spent" : "unspent") << " "
<< print_money(m_transfers[kit->second].amount()) << ", received output ignored");
}
else
{
LOG_ERROR("Public key " << epee::string_tools::pod_to_hex(kit->first)
<< " from received " << print_money(tx.vout[o].amount) << " output already exists with "
<< print_money(m_transfers[kit->second].amount()) << ", replacing with new output");
// The new larger output replaced a previous smaller one
tx_money_got_in_outs -= tx.vout[o].amount;
if (!pool)
{
transfer_details &td = m_transfers[kit->second];
td.m_block_height = height;
td.m_internal_output_index = o;
td.m_global_output_index = o_indices[o];
td.m_tx = (const cryptonote::transaction_prefix&)tx;
td.m_txid = txid;
td.m_amount = tx.vout[o].amount;
td.m_pk_index = pk_index - 1;
if (td.m_amount == 0)
{
td.m_mask = mask[o];
td.m_amount = amount[o];
td.m_rct = true;
}
else if (miner_tx && tx.version == 2)
{
td.m_mask = rct::identity();
td.m_rct = true;
}
else
{
td.m_mask = rct::identity();
td.m_rct = false;
}
THROW_WALLET_EXCEPTION_IF(td.get_public_key() != in_ephemeral[o].pub, error::wallet_internal_error, "Inconsistent public keys");
THROW_WALLET_EXCEPTION_IF(td.m_spent, error::wallet_internal_error, "Inconsistent spent status");
LOG_PRINT_L0("Received money: " << print_money(td.amount()) << ", with tx: " << txid);
if (0 != m_callback)
m_callback->on_money_received(height, txid, tx, td.m_amount);
}
}
}
}
}
uint64_t tx_money_spent_in_ins = 0;
// check all outputs for spending (compare key images)
for(auto& in: tx.vin)
{
if(in.type() != typeid(cryptonote::txin_to_key))
continue;
auto it = m_key_images.find(boost::get<cryptonote::txin_to_key>(in).k_image);
if(it != m_key_images.end())
{
transfer_details& td = m_transfers[it->second];
uint64_t amount = boost::get<cryptonote::txin_to_key>(in).amount;
if (amount > 0)
{
THROW_WALLET_EXCEPTION_IF(amount != td.amount(), error::wallet_internal_error,
std::string("Inconsistent amount in tx input: got ") + print_money(amount) +
std::string(", expected ") + print_money(td.amount()));
}
amount = td.amount();
tx_money_spent_in_ins += amount;
if (!pool)
{
LOG_PRINT_L0("Spent money: " << print_money(amount) << ", with tx: " << txid);
set_spent(it->second, height);
if (0 != m_callback)
m_callback->on_money_spent(height, txid, tx, amount, tx);
}
}
}
if (tx_money_spent_in_ins > 0)
{
process_outgoing(txid, tx, height, ts, tx_money_spent_in_ins, tx_money_got_in_outs);
}
uint64_t received = (tx_money_spent_in_ins < tx_money_got_in_outs) ? tx_money_got_in_outs - tx_money_spent_in_ins : 0;
if (0 < received)
{
tx_extra_nonce extra_nonce;
crypto::hash payment_id = null_hash;
if (find_tx_extra_field_by_type(tx_extra_fields, extra_nonce))
{
crypto::hash8 payment_id8 = null_hash8;
if(get_encrypted_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id8))
{
// We got a payment ID to go with this tx
LOG_PRINT_L2("Found encrypted payment ID: " << payment_id8);
if (tx_pub_key != null_pkey)
{
if (!decrypt_payment_id(payment_id8, tx_pub_key, m_account.get_keys().m_view_secret_key))
{
LOG_PRINT_L0("Failed to decrypt payment ID: " << payment_id8);
}
else
{
LOG_PRINT_L2("Decrypted payment ID: " << payment_id8);
// put the 64 bit decrypted payment id in the first 8 bytes
memcpy(payment_id.data, payment_id8.data, 8);
// rest is already 0, but guard against code changes above
memset(payment_id.data + 8, 0, 24);
}
}
else
{
LOG_PRINT_L1("No public key found in tx, unable to decrypt payment id");
}
}
else if (get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id))
{
LOG_PRINT_L2("Found unencrypted payment ID: " << payment_id);
}
}
else if (get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id))
{
LOG_PRINT_L2("Found unencrypted payment ID: " << payment_id);
}
payment_details payment;
payment.m_tx_hash = txid;
payment.m_amount = received;
payment.m_block_height = height;
payment.m_unlock_time = tx.unlock_time;
payment.m_timestamp = ts;
if (pool) {
m_unconfirmed_payments.emplace(payment_id, payment);
if (0 != m_callback)
m_callback->on_unconfirmed_money_received(height, txid, tx, payment.m_amount);
}
else
m_payments.emplace(payment_id, payment);
LOG_PRINT_L2("Payment found in " << (pool ? "pool" : "block") << ": " << payment_id << " / " << payment.m_tx_hash << " / " << payment.m_amount);
}
}
//----------------------------------------------------------------------------------------------------
void wallet2::process_unconfirmed(const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t height)
{
if (m_unconfirmed_txs.empty())
return;
auto unconf_it = m_unconfirmed_txs.find(txid);
if(unconf_it != m_unconfirmed_txs.end()) {
if (store_tx_info()) {
try {
m_confirmed_txs.insert(std::make_pair(txid, confirmed_transfer_details(unconf_it->second, height)));
}
catch (...) {
// can fail if the tx has unexpected input types
LOG_PRINT_L0("Failed to add outgoing transaction to confirmed transaction map");
}
}
m_unconfirmed_txs.erase(unconf_it);
}
}
//----------------------------------------------------------------------------------------------------
void wallet2::process_outgoing(const crypto::hash &txid, const cryptonote::transaction &tx, uint64_t height, uint64_t ts, uint64_t spent, uint64_t received)
{
std::pair<std::unordered_map<crypto::hash, confirmed_transfer_details>::iterator, bool> entry = m_confirmed_txs.insert(std::make_pair(txid, confirmed_transfer_details()));
// fill with the info we know, some info might already be there
if (entry.second)
{
// this case will happen if the tx is from our outputs, but was sent by another
// wallet (eg, we're a cold wallet and the hot wallet sent it). For RCT transactions,
// we only see 0 input amounts, so have to deduce amount out from other parameters.
entry.first->second.m_amount_in = spent;
if (tx.version == 1)
entry.first->second.m_amount_out = get_outs_money_amount(tx);
else
entry.first->second.m_amount_out = spent - tx.rct_signatures.txnFee;
entry.first->second.m_change = received;
std::vector<tx_extra_field> tx_extra_fields;
if(parse_tx_extra(tx.extra, tx_extra_fields))
{
tx_extra_nonce extra_nonce;
if (find_tx_extra_field_by_type(tx_extra_fields, extra_nonce))
{
// we do not care about failure here
get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, entry.first->second.m_payment_id);
}
}
}
entry.first->second.m_block_height = height;
entry.first->second.m_timestamp = ts;
}
//----------------------------------------------------------------------------------------------------
void wallet2::process_new_blockchain_entry(const cryptonote::block& b, const cryptonote::block_complete_entry& bche, const crypto::hash& bl_id, uint64_t height, const cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices &o_indices)
{
size_t txidx = 0;
THROW_WALLET_EXCEPTION_IF(bche.txs.size() + 1 != o_indices.indices.size(), error::wallet_internal_error,
"block transactions=" + std::to_string(bche.txs.size()) +
" not match with daemon response size=" + std::to_string(o_indices.indices.size()));
//handle transactions from new block
//optimization: seeking only for blocks that are not older then the wallet creation time plus 1 day. 1 day is for possible user incorrect time setup
if(b.timestamp + 60*60*24 > m_account.get_createtime() && height >= m_refresh_from_block_height)
{
TIME_MEASURE_START(miner_tx_handle_time);
process_new_transaction(get_transaction_hash(b.miner_tx), b.miner_tx, o_indices.indices[txidx++].indices, height, b.timestamp, true, false);
TIME_MEASURE_FINISH(miner_tx_handle_time);
TIME_MEASURE_START(txs_handle_time);
THROW_WALLET_EXCEPTION_IF(bche.txs.size() != b.tx_hashes.size(), error::wallet_internal_error, "Wrong amount of transactions for block");
size_t idx = 0;
for (const auto& txblob: bche.txs)
{
cryptonote::transaction tx;
bool r = parse_and_validate_tx_base_from_blob(txblob, tx);
THROW_WALLET_EXCEPTION_IF(!r, error::tx_parse_error, txblob);
process_new_transaction(b.tx_hashes[idx], tx, o_indices.indices[txidx++].indices, height, b.timestamp, false, false);
++idx;
}
TIME_MEASURE_FINISH(txs_handle_time);
LOG_PRINT_L2("Processed block: " << bl_id << ", height " << height << ", " << miner_tx_handle_time + txs_handle_time << "(" << miner_tx_handle_time << "/" << txs_handle_time <<")ms");
}else
{
if (!(height % 100))
LOG_PRINT_L2( "Skipped block by timestamp, height: " << height << ", block time " << b.timestamp << ", account time " << m_account.get_createtime());
}
m_blockchain.push_back(bl_id);
++m_local_bc_height;
if (0 != m_callback)
m_callback->on_new_block(height, b);
}
//----------------------------------------------------------------------------------------------------
void wallet2::get_short_chain_history(std::list<crypto::hash>& ids) const
{
size_t i = 0;
size_t current_multiplier = 1;
size_t sz = m_blockchain.size();
if(!sz)
return;
size_t current_back_offset = 1;
bool genesis_included = false;
while(current_back_offset < sz)
{
ids.push_back(m_blockchain[sz-current_back_offset]);
if(sz-current_back_offset == 0)
genesis_included = true;
if(i < 10)
{
++current_back_offset;
}else
{
current_back_offset += current_multiplier *= 2;
}
++i;
}
if(!genesis_included)
ids.push_back(m_blockchain[0]);
}
//----------------------------------------------------------------------------------------------------
void wallet2::parse_block_round(const cryptonote::blobdata &blob, cryptonote::block &bl, crypto::hash &bl_id, bool &error) const
{
error = !cryptonote::parse_and_validate_block_from_blob(blob, bl);
if (!error)
bl_id = get_block_hash(bl);
}
//----------------------------------------------------------------------------------------------------
void wallet2::pull_blocks(uint64_t start_height, uint64_t &blocks_start_height, const std::list<crypto::hash> &short_chain_history, std::list<cryptonote::block_complete_entry> &blocks, std::vector<cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices> &o_indices)
{
cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::request req = AUTO_VAL_INIT(req);
cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::response res = AUTO_VAL_INIT(res);
req.block_ids = short_chain_history;
uint32_t rpc_version;
boost::optional<std::string> result = m_node_rpc_proxy.get_rpc_version(rpc_version);
// no error
if (!!result)
{
// empty string -> not connection
THROW_WALLET_EXCEPTION_IF(result->empty(), tools::error::no_connection_to_daemon, "getversion");
THROW_WALLET_EXCEPTION_IF(*result == CORE_RPC_STATUS_BUSY, tools::error::daemon_busy, "getversion");
if (*result != CORE_RPC_STATUS_OK)
{
MDEBUG("Cannot determined daemon RPC version, not asking for pruned blocks");
req.prune = false; // old daemon
}
}
else
{
if (rpc_version >= MAKE_CORE_RPC_VERSION(1, 7))
{
MDEBUG("Daemon is recent enough, asking for pruned blocks");
req.prune = true;
}
else
{
MDEBUG("Daemon is too old, not asking for pruned blocks");
req.prune = false;
}
}
req.start_height = start_height;
m_daemon_rpc_mutex.lock();
bool r = net_utils::invoke_http_bin("/getblocks.bin", req, res, m_http_client, rpc_timeout);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "getblocks.bin");
THROW_WALLET_EXCEPTION_IF(res.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "getblocks.bin");
THROW_WALLET_EXCEPTION_IF(res.status != CORE_RPC_STATUS_OK, error::get_blocks_error, res.status);
THROW_WALLET_EXCEPTION_IF(res.blocks.size() != res.output_indices.size(), error::wallet_internal_error,
"mismatched blocks (" + boost::lexical_cast<std::string>(res.blocks.size()) + ") and output_indices (" +
boost::lexical_cast<std::string>(res.output_indices.size()) + ") sizes from daemon");
blocks_start_height = res.start_height;
blocks = res.blocks;
o_indices = res.output_indices;
}
//----------------------------------------------------------------------------------------------------
void wallet2::pull_hashes(uint64_t start_height, uint64_t &blocks_start_height, const std::list<crypto::hash> &short_chain_history, std::list<crypto::hash> &hashes)
{
cryptonote::COMMAND_RPC_GET_HASHES_FAST::request req = AUTO_VAL_INIT(req);
cryptonote::COMMAND_RPC_GET_HASHES_FAST::response res = AUTO_VAL_INIT(res);
req.block_ids = short_chain_history;
req.start_height = start_height;
m_daemon_rpc_mutex.lock();
bool r = net_utils::invoke_http_bin("/gethashes.bin", req, res, m_http_client, rpc_timeout);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "gethashes.bin");
THROW_WALLET_EXCEPTION_IF(res.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "gethashes.bin");
THROW_WALLET_EXCEPTION_IF(res.status != CORE_RPC_STATUS_OK, error::get_hashes_error, res.status);
blocks_start_height = res.start_height;
hashes = res.m_block_ids;
}
//----------------------------------------------------------------------------------------------------
void wallet2::process_blocks(uint64_t start_height, const std::list<cryptonote::block_complete_entry> &blocks, const std::vector<cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices> &o_indices, uint64_t& blocks_added)
{
size_t current_index = start_height;
blocks_added = 0;
size_t tx_o_indices_idx = 0;
THROW_WALLET_EXCEPTION_IF(blocks.size() != o_indices.size(), error::wallet_internal_error, "size mismatch");
int threads = tools::get_max_concurrency();
if (threads > 1)
{
std::vector<crypto::hash> round_block_hashes(threads);
std::vector<cryptonote::block> round_blocks(threads);
std::deque<bool> error(threads);
size_t blocks_size = blocks.size();
std::list<block_complete_entry>::const_iterator blocki = blocks.begin();
for (size_t b = 0; b < blocks_size; b += threads)
{
size_t round_size = std::min((size_t)threads, blocks_size - b);
boost::asio::io_service ioservice;
boost::thread_group threadpool;
std::unique_ptr < boost::asio::io_service::work > work(new boost::asio::io_service::work(ioservice));
for (size_t i = 0; i < round_size; i++)
{
threadpool.create_thread(boost::bind(&boost::asio::io_service::run, &ioservice));
}
std::list<block_complete_entry>::const_iterator tmpblocki = blocki;
for (size_t i = 0; i < round_size; ++i)
{
ioservice.dispatch(boost::bind(&wallet2::parse_block_round, this, std::cref(tmpblocki->block),
std::ref(round_blocks[i]), std::ref(round_block_hashes[i]), std::ref(error[i])));
++tmpblocki;
}
KILL_IOSERVICE();
tmpblocki = blocki;
for (size_t i = 0; i < round_size; ++i)
{
THROW_WALLET_EXCEPTION_IF(error[i], error::block_parse_error, tmpblocki->block);
++tmpblocki;
}
for (size_t i = 0; i < round_size; ++i)
{
const crypto::hash &bl_id = round_block_hashes[i];
cryptonote::block &bl = round_blocks[i];
if(current_index >= m_blockchain.size())
{
process_new_blockchain_entry(bl, *blocki, bl_id, current_index, o_indices[b+i]);
++blocks_added;
}
else if(bl_id != m_blockchain[current_index])
{
//split detected here !!!
THROW_WALLET_EXCEPTION_IF(current_index == start_height, error::wallet_internal_error,
"wrong daemon response: split starts from the first block in response " + string_tools::pod_to_hex(bl_id) +
" (height " + std::to_string(start_height) + "), local block id at this height: " +
string_tools::pod_to_hex(m_blockchain[current_index]));
detach_blockchain(current_index);
process_new_blockchain_entry(bl, *blocki, bl_id, current_index, o_indices[b+i]);
}
else
{
LOG_PRINT_L2("Block is already in blockchain: " << string_tools::pod_to_hex(bl_id));
}
++current_index;
++blocki;
}
}
}
else
{
for(auto& bl_entry: blocks)
{
cryptonote::block bl;
bool r = cryptonote::parse_and_validate_block_from_blob(bl_entry.block, bl);
THROW_WALLET_EXCEPTION_IF(!r, error::block_parse_error, bl_entry.block);
crypto::hash bl_id = get_block_hash(bl);
if(current_index >= m_blockchain.size())
{
process_new_blockchain_entry(bl, bl_entry, bl_id, current_index, o_indices[tx_o_indices_idx]);
++blocks_added;
}
else if(bl_id != m_blockchain[current_index])
{
//split detected here !!!
THROW_WALLET_EXCEPTION_IF(current_index == start_height, error::wallet_internal_error,
"wrong daemon response: split starts from the first block in response " + string_tools::pod_to_hex(bl_id) +
" (height " + std::to_string(start_height) + "), local block id at this height: " +
string_tools::pod_to_hex(m_blockchain[current_index]));
detach_blockchain(current_index);
process_new_blockchain_entry(bl, bl_entry, bl_id, current_index, o_indices[tx_o_indices_idx]);
}
else
{
LOG_PRINT_L2("Block is already in blockchain: " << string_tools::pod_to_hex(bl_id));
}
++current_index;
++tx_o_indices_idx;
}
}
}
//----------------------------------------------------------------------------------------------------
void wallet2::refresh()
{
uint64_t blocks_fetched = 0;
refresh(0, blocks_fetched);
}
//----------------------------------------------------------------------------------------------------
void wallet2::refresh(uint64_t start_height, uint64_t & blocks_fetched)
{
bool received_money = false;
refresh(start_height, blocks_fetched, received_money);
}
//----------------------------------------------------------------------------------------------------
void wallet2::pull_next_blocks(uint64_t start_height, uint64_t &blocks_start_height, std::list<crypto::hash> &short_chain_history, const std::list<cryptonote::block_complete_entry> &prev_blocks, std::list<cryptonote::block_complete_entry> &blocks, std::vector<cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices> &o_indices, bool &error)
{
error = false;
try
{
// prepend the last 3 blocks, should be enough to guard against a block or two's reorg
cryptonote::block bl;
std::list<cryptonote::block_complete_entry>::const_reverse_iterator i = prev_blocks.rbegin();
for (size_t n = 0; n < std::min((size_t)3, prev_blocks.size()); ++n)
{
bool ok = cryptonote::parse_and_validate_block_from_blob(i->block, bl);
THROW_WALLET_EXCEPTION_IF(!ok, error::block_parse_error, i->block);
short_chain_history.push_front(cryptonote::get_block_hash(bl));
++i;
}
// pull the new blocks
pull_blocks(start_height, blocks_start_height, short_chain_history, blocks, o_indices);
}
catch(...)
{
error = true;
}
}
//----------------------------------------------------------------------------------------------------
void wallet2::update_pool_state()
{
MDEBUG("update_pool_state start");
// get the pool state
cryptonote::COMMAND_RPC_GET_TRANSACTION_POOL_HASHES::request req;
cryptonote::COMMAND_RPC_GET_TRANSACTION_POOL_HASHES::response res;
m_daemon_rpc_mutex.lock();
bool r = epee::net_utils::invoke_http_json("/get_transaction_pool_hashes.bin", req, res, m_http_client, rpc_timeout);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "get_transaction_pool_hashes.bin");
THROW_WALLET_EXCEPTION_IF(res.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "get_transaction_pool_hashes.bin");
THROW_WALLET_EXCEPTION_IF(res.status != CORE_RPC_STATUS_OK, error::get_tx_pool_error);
MDEBUG("update_pool_state got pool");
// remove any pending tx that's not in the pool
std::unordered_map<crypto::hash, wallet2::unconfirmed_transfer_details>::iterator it = m_unconfirmed_txs.begin();
while (it != m_unconfirmed_txs.end())
{
const crypto::hash &txid = it->first;
bool found = false;
for (const auto &it2: res.tx_hashes)
{
if (it2 == txid)
{
found = true;
break;
}
}
auto pit = it++;
if (!found)
{
// we want to avoid a false positive when we ask for the pool just after
// a tx is removed from the pool due to being found in a new block, but
// just before the block is visible by refresh. So we keep a boolean, so
// that the first time we don't see the tx, we set that boolean, and only
// delete it the second time it is checked
if (pit->second.m_state == wallet2::unconfirmed_transfer_details::pending)
{
LOG_PRINT_L1("Pending txid " << txid << " not in pool, marking as not in pool");
pit->second.m_state = wallet2::unconfirmed_transfer_details::pending_not_in_pool;
}
else if (pit->second.m_state == wallet2::unconfirmed_transfer_details::pending_not_in_pool)
{
LOG_PRINT_L1("Pending txid " << txid << " not in pool, marking as failed");
pit->second.m_state = wallet2::unconfirmed_transfer_details::failed;
// the inputs aren't spent anymore, since the tx failed
for (size_t vini = 0; vini < pit->second.m_tx.vin.size(); ++vini)
{
if (pit->second.m_tx.vin[vini].type() == typeid(txin_to_key))
{
txin_to_key &tx_in_to_key = boost::get<txin_to_key>(pit->second.m_tx.vin[vini]);
for (size_t i = 0; i < m_transfers.size(); ++i)
{
const transfer_details &td = m_transfers[i];
if (td.m_key_image == tx_in_to_key.k_image)
{
LOG_PRINT_L1("Resetting spent status for output " << vini << ": " << td.m_key_image);
set_unspent(i);
break;
}
}
}
}
}
}
}
MDEBUG("update_pool_state done first loop");
// remove pool txes to us that aren't in the pool anymore
std::unordered_map<crypto::hash, wallet2::payment_details>::iterator uit = m_unconfirmed_payments.begin();
while (uit != m_unconfirmed_payments.end())
{
const crypto::hash &txid = uit->second.m_tx_hash;
bool found = false;
for (const auto &it2: res.tx_hashes)
{
if (it2 == txid)
{
found = true;
break;
}
}
auto pit = uit++;
if (!found)
{
MDEBUG("Removing " << txid << " from unconfirmed payments, not found in pool");
m_unconfirmed_payments.erase(pit);
}
}
MDEBUG("update_pool_state done second loop");
// gather txids of new pool txes to us
std::vector<crypto::hash> txids;
for (const auto &txid: res.tx_hashes)
{
if (m_scanned_pool_txs[0].find(txid) != m_scanned_pool_txs[0].end() || m_scanned_pool_txs[1].find(txid) != m_scanned_pool_txs[1].end())
{
LOG_PRINT_L2("Already seen " << txid << ", skipped");
continue;
}
if (m_unconfirmed_payments.find(txid) == m_unconfirmed_payments.end())
{
LOG_PRINT_L1("Found new pool tx: " << txid);
bool found = false;
for (const auto &i: m_unconfirmed_txs)
{
if (i.first == txid)
{
found = true;
break;
}
}
if (!found)
{
// not one of those we sent ourselves
txids.push_back(txid);
}
else
{
LOG_PRINT_L1("We sent that one");
}
}
else
{
LOG_PRINT_L1("Already saw that one, it's for us");
}
}
// get those txes
if (!txids.empty())
{
cryptonote::COMMAND_RPC_GET_TRANSACTIONS::request req;
cryptonote::COMMAND_RPC_GET_TRANSACTIONS::response res;
for (const auto &txid: txids)
req.txs_hashes.push_back(epee::string_tools::pod_to_hex(txid));
MDEBUG("asking for " << txids.size() << " transactions");
req.decode_as_json = false;
m_daemon_rpc_mutex.lock();
bool r = epee::net_utils::invoke_http_json("/gettransactions", req, res, m_http_client, rpc_timeout);
m_daemon_rpc_mutex.unlock();
MDEBUG("Got " << r << " and " << res.status);
if (r && res.status == CORE_RPC_STATUS_OK)
{
if (res.txs.size() == txids.size())
{
size_t n = 0;
for (const auto &txid: txids)
{
// might have just been put in a block
if (res.txs[n].in_pool)
{
cryptonote::transaction tx;
cryptonote::blobdata bd;
crypto::hash tx_hash, tx_prefix_hash;
if (epee::string_tools::parse_hexstr_to_binbuff(res.txs[n].as_hex, bd))
{
if (cryptonote::parse_and_validate_tx_from_blob(bd, tx, tx_hash, tx_prefix_hash))
{
if (tx_hash == txid)
{
process_new_transaction(txid, tx, std::vector<uint64_t>(), 0, time(NULL), false, true);
m_scanned_pool_txs[0].insert(txid);
if (m_scanned_pool_txs[0].size() > 5000)
{
std::swap(m_scanned_pool_txs[0], m_scanned_pool_txs[1]);
m_scanned_pool_txs[0].clear();
}
}
else
{
LOG_PRINT_L0("Mismatched txids when processing unconfimed txes from pool");
}
}
else
{
LOG_PRINT_L0("failed to validate transaction from daemon");
}
}
else
{
LOG_PRINT_L0("Failed to parse tx " << txid);
}
}
else
{
LOG_PRINT_L1("Tx " << txid << " was in pool, but is no more");
}
++n;
}
}
else
{
LOG_PRINT_L0("Expected " << txids.size() << " tx(es), got " << res.txs.size());
}
}
else
{
LOG_PRINT_L0("Error calling gettransactions daemon RPC: r " << r << ", status " << res.status);
}
}
MDEBUG("update_pool_state end");
}
//----------------------------------------------------------------------------------------------------
void wallet2::fast_refresh(uint64_t stop_height, uint64_t &blocks_start_height, std::list<crypto::hash> &short_chain_history)
{
std::list<crypto::hash> hashes;
size_t current_index = m_blockchain.size();
while(m_run.load(std::memory_order_relaxed) && current_index < stop_height)
{
pull_hashes(0, blocks_start_height, short_chain_history, hashes);
if (hashes.size() < 3)
return;
if (hashes.size() + current_index < stop_height) {
std::list<crypto::hash>::iterator right;
// drop early 3 off, skipping the genesis block
if (short_chain_history.size() > 3) {
right = short_chain_history.end();
std::advance(right,-1);
std::list<crypto::hash>::iterator left = right;
std::advance(left, -3);
short_chain_history.erase(left, right);
}
right = hashes.end();
// prepend 3 more
for (int i = 0; i<3; i++) {
right--;
short_chain_history.push_front(*right);
}
}
current_index = blocks_start_height;
for(auto& bl_id: hashes)
{
if(current_index >= m_blockchain.size())
{
if (!(current_index % 1000))
LOG_PRINT_L2( "Skipped block by height: " << current_index);
m_blockchain.push_back(bl_id);
++m_local_bc_height;
if (0 != m_callback)
{ // FIXME: this isn't right, but simplewallet just logs that we got a block.
cryptonote::block dummy;
m_callback->on_new_block(current_index, dummy);
}
}
else if(bl_id != m_blockchain[current_index])
{
//split detected here !!!
return;
}
++current_index;
if (current_index >= stop_height)
return;
}
}
}
bool wallet2::add_address_book_row(const cryptonote::account_public_address &address, const crypto::hash &payment_id, const std::string &description)
{
wallet2::address_book_row a;
a.m_address = address;
a.m_payment_id = payment_id;
a.m_description = description;
auto old_size = m_address_book.size();
m_address_book.push_back(a);
if(m_address_book.size() == old_size+1)
return true;
return false;
}
bool wallet2::delete_address_book_row(std::size_t row_id) {
if(m_address_book.size() <= row_id)
return false;
m_address_book.erase(m_address_book.begin()+row_id);
return true;
}
//----------------------------------------------------------------------------------------------------
void wallet2::refresh(uint64_t start_height, uint64_t & blocks_fetched, bool& received_money)
{
received_money = false;
blocks_fetched = 0;
uint64_t added_blocks = 0;
size_t try_count = 0;
crypto::hash last_tx_hash_id = m_transfers.size() ? m_transfers.back().m_txid : null_hash;
std::list<crypto::hash> short_chain_history;
boost::thread pull_thread;
uint64_t blocks_start_height;
std::list<cryptonote::block_complete_entry> blocks;
std::vector<COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices> o_indices;
// pull the first set of blocks
get_short_chain_history(short_chain_history);
m_run.store(true, std::memory_order_relaxed);
if (start_height > m_blockchain.size() || m_refresh_from_block_height > m_blockchain.size()) {
if (!start_height)
start_height = m_refresh_from_block_height;
// we can shortcut by only pulling hashes up to the start_height
fast_refresh(start_height, blocks_start_height, short_chain_history);
// regenerate the history now that we've got a full set of hashes
short_chain_history.clear();
get_short_chain_history(short_chain_history);
start_height = 0;
// and then fall through to regular refresh processing
}
// If stop() is called during fast refresh we don't need to continue
if(!m_run.load(std::memory_order_relaxed))
return;
pull_blocks(start_height, blocks_start_height, short_chain_history, blocks, o_indices);
// always reset start_height to 0 to force short_chain_ history to be used on
// subsequent pulls in this refresh.
start_height = 0;
while(m_run.load(std::memory_order_relaxed))
{
try
{
// pull the next set of blocks while we're processing the current one
uint64_t next_blocks_start_height;
std::list<cryptonote::block_complete_entry> next_blocks;
std::vector<cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices> next_o_indices;
bool error = false;
pull_thread = boost::thread([&]{pull_next_blocks(start_height, next_blocks_start_height, short_chain_history, blocks, next_blocks, next_o_indices, error);});
process_blocks(blocks_start_height, blocks, o_indices, added_blocks);
blocks_fetched += added_blocks;
pull_thread.join();
if(blocks_start_height == next_blocks_start_height)
{
m_node_rpc_proxy.set_height(m_blockchain.size());
break;
}
// switch to the new blocks from the daemon
blocks_start_height = next_blocks_start_height;
blocks = next_blocks;
o_indices = next_o_indices;
// handle error from async fetching thread
if (error)
{
throw std::runtime_error("proxy exception in refresh thread");
}
}
catch (const std::exception&)
{
blocks_fetched += added_blocks;
if (pull_thread.joinable())
pull_thread.join();
if(try_count < 3)
{
LOG_PRINT_L1("Another try pull_blocks (try_count=" << try_count << ")...");
++try_count;
}
else
{
LOG_ERROR("pull_blocks failed, try_count=" << try_count);
throw;
}
}
}
if(last_tx_hash_id != (m_transfers.size() ? m_transfers.back().m_txid : null_hash))
received_money = true;
try
{
// If stop() is called we don't need to check pending transactions
if(m_run.load(std::memory_order_relaxed))
update_pool_state();
}
catch (...)
{
LOG_PRINT_L1("Failed to check pending transactions");
}
LOG_PRINT_L1("Refresh done, blocks received: " << blocks_fetched << ", balance: " << print_money(balance()) << ", unlocked: " << print_money(unlocked_balance()));
}
//----------------------------------------------------------------------------------------------------
bool wallet2::refresh(uint64_t & blocks_fetched, bool& received_money, bool& ok)
{
try
{
refresh(0, blocks_fetched, received_money);
ok = true;
}
catch (...)
{
ok = false;
}
return ok;
}
//----------------------------------------------------------------------------------------------------
void wallet2::detach_blockchain(uint64_t height)
{
LOG_PRINT_L0("Detaching blockchain on height " << height);
size_t transfers_detached = 0;
for (size_t i = 0; i < m_transfers.size(); ++i)
{
wallet2::transfer_details &td = m_transfers[i];
if (td.m_spent && td.m_spent_height >= height)
{
LOG_PRINT_L1("Resetting spent status for output " << i << ": " << td.m_key_image);
set_unspent(i);
}
}
auto it = std::find_if(m_transfers.begin(), m_transfers.end(), [&](const transfer_details& td){return td.m_block_height >= height;});
size_t i_start = it - m_transfers.begin();
for(size_t i = i_start; i!= m_transfers.size();i++)
{
auto it_ki = m_key_images.find(m_transfers[i].m_key_image);
THROW_WALLET_EXCEPTION_IF(it_ki == m_key_images.end(), error::wallet_internal_error, "key image not found");
m_key_images.erase(it_ki);
}
for(size_t i = i_start; i!= m_transfers.size();i++)
{
auto it_pk = m_pub_keys.find(m_transfers[i].get_public_key());
THROW_WALLET_EXCEPTION_IF(it_pk == m_pub_keys.end(), error::wallet_internal_error, "public key not found");
m_pub_keys.erase(it_pk);
}
m_transfers.erase(it, m_transfers.end());
size_t blocks_detached = m_blockchain.end() - (m_blockchain.begin()+height);
m_blockchain.erase(m_blockchain.begin()+height, m_blockchain.end());
m_local_bc_height -= blocks_detached;
for (auto it = m_payments.begin(); it != m_payments.end(); )
{
if(height <= it->second.m_block_height)
it = m_payments.erase(it);
else
++it;
}
for (auto it = m_confirmed_txs.begin(); it != m_confirmed_txs.end(); )
{
if(height <= it->second.m_block_height)
it = m_confirmed_txs.erase(it);
else
++it;
}
LOG_PRINT_L0("Detached blockchain on height " << height << ", transfers detached " << transfers_detached << ", blocks detached " << blocks_detached);
}
//----------------------------------------------------------------------------------------------------
bool wallet2::deinit()
{
m_is_initialized=false;
return true;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::clear()
{
m_blockchain.clear();
m_transfers.clear();
m_key_images.clear();
m_pub_keys.clear();
m_unconfirmed_txs.clear();
m_payments.clear();
m_tx_keys.clear();
m_confirmed_txs.clear();
m_local_bc_height = 1;
return true;
}
/*!
* \brief Stores wallet information to wallet file.
* \param keys_file_name Name of wallet file
* \param password Password of wallet file
* \param watch_only true to save only view key, false to save both spend and view keys
* \return Whether it was successful.
*/
bool wallet2::store_keys(const std::string& keys_file_name, const std::string& password, bool watch_only)
{
std::string account_data;
cryptonote::account_base account = m_account;
if (watch_only)
account.forget_spend_key();
bool r = epee::serialization::store_t_to_binary(account, account_data);
CHECK_AND_ASSERT_MES(r, false, "failed to serialize wallet keys");
wallet2::keys_file_data keys_file_data = boost::value_initialized<wallet2::keys_file_data>();
// Create a JSON object with "key_data" and "seed_language" as keys.
rapidjson::Document json;
json.SetObject();
rapidjson::Value value(rapidjson::kStringType);
value.SetString(account_data.c_str(), account_data.length());
json.AddMember("key_data", value, json.GetAllocator());
if (!seed_language.empty())
{
value.SetString(seed_language.c_str(), seed_language.length());
json.AddMember("seed_language", value, json.GetAllocator());
}
rapidjson::Value value2(rapidjson::kNumberType);
value2.SetInt(watch_only ? 1 :0); // WTF ? JSON has different true and false types, and not boolean ??
json.AddMember("watch_only", value2, json.GetAllocator());
value2.SetInt(m_always_confirm_transfers ? 1 :0);
json.AddMember("always_confirm_transfers", value2, json.GetAllocator());
value2.SetInt(m_print_ring_members ? 1 :0);
json.AddMember("print_ring_members", value2, json.GetAllocator());
value2.SetInt(m_store_tx_info ? 1 :0);
json.AddMember("store_tx_info", value2, json.GetAllocator());
value2.SetUint(m_default_mixin);
json.AddMember("default_mixin", value2, json.GetAllocator());
value2.SetUint(m_default_priority);
json.AddMember("default_priority", value2, json.GetAllocator());
value2.SetInt(m_auto_refresh ? 1 :0);
json.AddMember("auto_refresh", value2, json.GetAllocator());
value2.SetInt(m_refresh_type);
json.AddMember("refresh_type", value2, json.GetAllocator());
value2.SetUint64(m_refresh_from_block_height);
json.AddMember("refresh_height", value2, json.GetAllocator());
value2.SetInt(m_confirm_missing_payment_id ? 1 :0);
json.AddMember("confirm_missing_payment_id", value2, json.GetAllocator());
value2.SetInt(m_ask_password ? 1 :0);
json.AddMember("ask_password", value2, json.GetAllocator());
value2.SetUint(m_min_output_count);
json.AddMember("min_output_count", value2, json.GetAllocator());
value2.SetUint64(m_min_output_value);
json.AddMember("min_output_value", value2, json.GetAllocator());
value2.SetInt(cryptonote::get_default_decimal_point());
json.AddMember("default_decimal_point", value2, json.GetAllocator());
value2.SetInt(m_merge_destinations ? 1 :0);
json.AddMember("merge_destinations", value2, json.GetAllocator());
// Serialize the JSON object
rapidjson::StringBuffer buffer;
rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
json.Accept(writer);
account_data = buffer.GetString();
// Encrypt the entire JSON object.
crypto::chacha8_key key;
crypto::generate_chacha8_key(password, key);
std::string cipher;
cipher.resize(account_data.size());
keys_file_data.iv = crypto::rand<crypto::chacha8_iv>();
crypto::chacha8(account_data.data(), account_data.size(), key, keys_file_data.iv, &cipher[0]);
keys_file_data.account_data = cipher;
std::string buf;
r = ::serialization::dump_binary(keys_file_data, buf);
r = r && epee::file_io_utils::save_string_to_file(keys_file_name, buf); //and never touch wallet_keys_file again, only read
CHECK_AND_ASSERT_MES(r, false, "failed to generate wallet keys file " << keys_file_name);
return true;
}
//----------------------------------------------------------------------------------------------------
namespace
{
bool verify_keys(const crypto::secret_key& sec, const crypto::public_key& expected_pub)
{
crypto::public_key pub;
bool r = crypto::secret_key_to_public_key(sec, pub);
return r && expected_pub == pub;
}
}
/*!
* \brief Load wallet information from wallet file.
* \param keys_file_name Name of wallet file
* \param password Password of wallet file
*/
bool wallet2::load_keys(const std::string& keys_file_name, const std::string& password)
{
wallet2::keys_file_data keys_file_data;
std::string buf;
bool r = epee::file_io_utils::load_file_to_string(keys_file_name, buf);
THROW_WALLET_EXCEPTION_IF(!r, error::file_read_error, keys_file_name);
// Decrypt the contents
r = ::serialization::parse_binary(buf, keys_file_data);
THROW_WALLET_EXCEPTION_IF(!r, error::wallet_internal_error, "internal error: failed to deserialize \"" + keys_file_name + '\"');
crypto::chacha8_key key;
crypto::generate_chacha8_key(password, key);
std::string account_data;
account_data.resize(keys_file_data.account_data.size());
crypto::chacha8(keys_file_data.account_data.data(), keys_file_data.account_data.size(), key, keys_file_data.iv, &account_data[0]);
// The contents should be JSON if the wallet follows the new format.
rapidjson::Document json;
if (json.Parse(account_data.c_str()).HasParseError())
{
is_old_file_format = true;
m_watch_only = false;
m_always_confirm_transfers = false;
m_print_ring_members = false;
m_default_mixin = 0;
m_default_priority = 0;
m_auto_refresh = true;
m_refresh_type = RefreshType::RefreshDefault;
m_confirm_missing_payment_id = true;
m_ask_password = true;
m_min_output_count = 0;
m_min_output_value = 0;
m_merge_destinations = false;
}
else
{
if (!json.HasMember("key_data"))
{
LOG_ERROR("Field key_data not found in JSON");
return false;
}
if (!json["key_data"].IsString())
{
LOG_ERROR("Field key_data found in JSON, but not String");
return false;
}
const char *field_key_data = json["key_data"].GetString();
account_data = std::string(field_key_data, field_key_data + json["key_data"].GetStringLength());
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, seed_language, std::string, String, false, std::string());
if (field_seed_language_found)
{
set_seed_language(field_seed_language);
}
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, watch_only, int, Int, false, false);
m_watch_only = field_watch_only;
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, always_confirm_transfers, int, Int, false, true);
m_always_confirm_transfers = field_always_confirm_transfers;
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, print_ring_members, int, Int, false, true);
m_print_ring_members = field_print_ring_members;
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, store_tx_keys, int, Int, false, true);
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, store_tx_info, int, Int, false, true);
m_store_tx_info = ((field_store_tx_keys != 0) || (field_store_tx_info != 0));
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, default_mixin, unsigned int, Uint, false, 0);
m_default_mixin = field_default_mixin;
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, default_priority, unsigned int, Uint, false, 0);
if (field_default_priority_found)
{
m_default_priority = field_default_priority;
}
else
{
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, default_fee_multiplier, unsigned int, Uint, false, 0);
if (field_default_fee_multiplier_found)
m_default_priority = field_default_fee_multiplier;
else
m_default_priority = 0;
}
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, auto_refresh, int, Int, false, true);
m_auto_refresh = field_auto_refresh;
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, refresh_type, int, Int, false, RefreshType::RefreshDefault);
m_refresh_type = RefreshType::RefreshDefault;
if (field_refresh_type_found)
{
if (field_refresh_type == RefreshFull || field_refresh_type == RefreshOptimizeCoinbase || field_refresh_type == RefreshNoCoinbase)
m_refresh_type = (RefreshType)field_refresh_type;
else
LOG_PRINT_L0("Unknown refresh-type value (" << field_refresh_type << "), using default");
}
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, refresh_height, uint64_t, Uint64, false, 0);
m_refresh_from_block_height = field_refresh_height;
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, confirm_missing_payment_id, int, Int, false, true);
m_confirm_missing_payment_id = field_confirm_missing_payment_id;
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, ask_password, int, Int, false, true);
m_ask_password = field_ask_password;
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, default_decimal_point, int, Int, false, CRYPTONOTE_DISPLAY_DECIMAL_POINT);
cryptonote::set_default_decimal_point(field_default_decimal_point);
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, min_output_count, uint32_t, Uint, false, 0);
m_min_output_count = field_min_output_count;
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, min_output_value, uint64_t, Uint64, false, 0);
m_min_output_value = field_min_output_value;
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, merge_destinations, int, Int, false, false);
m_merge_destinations = field_merge_destinations;
}
const cryptonote::account_keys& keys = m_account.get_keys();
r = epee::serialization::load_t_from_binary(m_account, account_data);
r = r && verify_keys(keys.m_view_secret_key, keys.m_account_address.m_view_public_key);
if(!m_watch_only)
r = r && verify_keys(keys.m_spend_secret_key, keys.m_account_address.m_spend_public_key);
THROW_WALLET_EXCEPTION_IF(!r, error::invalid_password);
return true;
}
/*!
* \brief verify password for default wallet keys file.
* \param password Password to verify
*
* for verification only
* should not mutate state, unlike load_keys()
* can be used prior to rewriting wallet keys file, to ensure user has entered the correct password
*
*/
bool wallet2::verify_password(const std::string& password) const
{
const std::string keys_file_name = m_keys_file;
wallet2::keys_file_data keys_file_data;
std::string buf;
bool r = epee::file_io_utils::load_file_to_string(keys_file_name, buf);
THROW_WALLET_EXCEPTION_IF(!r, error::file_read_error, keys_file_name);
// Decrypt the contents
r = ::serialization::parse_binary(buf, keys_file_data);
THROW_WALLET_EXCEPTION_IF(!r, error::wallet_internal_error, "internal error: failed to deserialize \"" + keys_file_name + '\"');
crypto::chacha8_key key;
crypto::generate_chacha8_key(password, key);
std::string account_data;
account_data.resize(keys_file_data.account_data.size());
crypto::chacha8(keys_file_data.account_data.data(), keys_file_data.account_data.size(), key, keys_file_data.iv, &account_data[0]);
// The contents should be JSON if the wallet follows the new format.
rapidjson::Document json;
if (json.Parse(account_data.c_str()).HasParseError())
{
// old format before JSON wallet key file format
}
else
{
account_data = std::string(json["key_data"].GetString(), json["key_data"].GetString() +
json["key_data"].GetStringLength());
}
cryptonote::account_base account_data_check;
r = epee::serialization::load_t_from_binary(account_data_check, account_data);
const cryptonote::account_keys& keys = account_data_check.get_keys();
r = r && verify_keys(keys.m_view_secret_key, keys.m_account_address.m_view_public_key);
if(!m_watch_only)
r = r && verify_keys(keys.m_spend_secret_key, keys.m_account_address.m_spend_public_key);
return r;
}
/*!
* \brief Generates a wallet or restores one.
* \param wallet_ Name of wallet file
* \param password Password of wallet file
* \param recovery_param If it is a restore, the recovery key
* \param recover Whether it is a restore
* \param two_random Whether it is a non-deterministic wallet
* \return The secret key of the generated wallet
*/
crypto::secret_key wallet2::generate(const std::string& wallet_, const std::string& password,
const crypto::secret_key& recovery_param, bool recover, bool two_random)
{
clear();
prepare_file_names(wallet_);
boost::system::error_code ignored_ec;
THROW_WALLET_EXCEPTION_IF(boost::filesystem::exists(m_wallet_file, ignored_ec), error::file_exists, m_wallet_file);
THROW_WALLET_EXCEPTION_IF(boost::filesystem::exists(m_keys_file, ignored_ec), error::file_exists, m_keys_file);
crypto::secret_key retval = m_account.generate(recovery_param, recover, two_random);
m_account_public_address = m_account.get_keys().m_account_address;
m_watch_only = false;
if(m_refresh_from_block_height == 0 && !recover){
// Wallets created offline don't know blockchain height.
// Set blockchain height calculated from current date/time
// -1 month for fluctuations in block time and machine date/time setup.
// avg seconds per block
const int seconds_per_block = DIFFICULTY_TARGET_V2;
// ~num blocks per month
const uint64_t blocks_per_month = 60*60*24*30/seconds_per_block;
uint64_t approx_blockchain_height = get_approximate_blockchain_height();
if(approx_blockchain_height > 0) {
m_refresh_from_block_height = approx_blockchain_height - blocks_per_month;
}
}
bool r = store_keys(m_keys_file, password, false);
THROW_WALLET_EXCEPTION_IF(!r, error::file_save_error, m_keys_file);
r = file_io_utils::save_string_to_file(m_wallet_file + ".address.txt", m_account.get_public_address_str(m_testnet));
if(!r) MERROR("String with address text not saved");
cryptonote::block b;
generate_genesis(b);
m_blockchain.push_back(get_block_hash(b));
store();
return retval;
}
/*!
* \brief Creates a watch only wallet from a public address and a view secret key.
* \param wallet_ Name of wallet file
* \param password Password of wallet file
* \param viewkey view secret key
*/
void wallet2::generate(const std::string& wallet_, const std::string& password,
const cryptonote::account_public_address &account_public_address,
const crypto::secret_key& viewkey)
{
clear();
prepare_file_names(wallet_);
boost::system::error_code ignored_ec;
THROW_WALLET_EXCEPTION_IF(boost::filesystem::exists(m_wallet_file, ignored_ec), error::file_exists, m_wallet_file);
THROW_WALLET_EXCEPTION_IF(boost::filesystem::exists(m_keys_file, ignored_ec), error::file_exists, m_keys_file);
m_account.create_from_viewkey(account_public_address, viewkey);
m_account_public_address = account_public_address;
m_watch_only = true;
bool r = store_keys(m_keys_file, password, true);
THROW_WALLET_EXCEPTION_IF(!r, error::file_save_error, m_keys_file);
r = file_io_utils::save_string_to_file(m_wallet_file + ".address.txt", m_account.get_public_address_str(m_testnet));
if(!r) MERROR("String with address text not saved");
cryptonote::block b;
generate_genesis(b);
m_blockchain.push_back(get_block_hash(b));
store();
}
/*!
* \brief Creates a wallet from a public address and a spend/view secret key pair.
* \param wallet_ Name of wallet file
* \param password Password of wallet file
* \param spendkey spend secret key
* \param viewkey view secret key
*/
void wallet2::generate(const std::string& wallet_, const std::string& password,
const cryptonote::account_public_address &account_public_address,
const crypto::secret_key& spendkey, const crypto::secret_key& viewkey)
{
clear();
prepare_file_names(wallet_);
boost::system::error_code ignored_ec;
THROW_WALLET_EXCEPTION_IF(boost::filesystem::exists(m_wallet_file, ignored_ec), error::file_exists, m_wallet_file);
THROW_WALLET_EXCEPTION_IF(boost::filesystem::exists(m_keys_file, ignored_ec), error::file_exists, m_keys_file);
m_account.create_from_keys(account_public_address, spendkey, viewkey);
m_account_public_address = account_public_address;
m_watch_only = false;
bool r = store_keys(m_keys_file, password, false);
THROW_WALLET_EXCEPTION_IF(!r, error::file_save_error, m_keys_file);
r = file_io_utils::save_string_to_file(m_wallet_file + ".address.txt", m_account.get_public_address_str(m_testnet));
if(!r) MERROR("String with address text not saved");
cryptonote::block b;
generate_genesis(b);
m_blockchain.push_back(get_block_hash(b));
store();
}
/*!
* \brief Rewrites to the wallet file for wallet upgrade (doesn't generate key, assumes it's already there)
* \param wallet_name Name of wallet file (should exist)
* \param password Password for wallet file
*/
void wallet2::rewrite(const std::string& wallet_name, const std::string& password)
{
prepare_file_names(wallet_name);
boost::system::error_code ignored_ec;
THROW_WALLET_EXCEPTION_IF(!boost::filesystem::exists(m_keys_file, ignored_ec), error::file_not_found, m_keys_file);
bool r = store_keys(m_keys_file, password, m_watch_only);
THROW_WALLET_EXCEPTION_IF(!r, error::file_save_error, m_keys_file);
}
/*!
* \brief Writes to a file named based on the normal wallet (doesn't generate key, assumes it's already there)
* \param wallet_name Base name of wallet file
* \param password Password for wallet file
*/
void wallet2::write_watch_only_wallet(const std::string& wallet_name, const std::string& password)
{
prepare_file_names(wallet_name);
boost::system::error_code ignored_ec;
std::string filename = m_keys_file + "-watchonly";
bool watch_only_keys_file_exists = boost::filesystem::exists(filename, ignored_ec);
THROW_WALLET_EXCEPTION_IF(watch_only_keys_file_exists, error::file_save_error, filename);
bool r = store_keys(filename, password, true);
THROW_WALLET_EXCEPTION_IF(!r, error::file_save_error, filename);
}
//----------------------------------------------------------------------------------------------------
void wallet2::wallet_exists(const std::string& file_path, bool& keys_file_exists, bool& wallet_file_exists)
{
std::string keys_file, wallet_file;
do_prepare_file_names(file_path, keys_file, wallet_file);
boost::system::error_code ignore;
keys_file_exists = boost::filesystem::exists(keys_file, ignore);
wallet_file_exists = boost::filesystem::exists(wallet_file, ignore);
}
//----------------------------------------------------------------------------------------------------
bool wallet2::wallet_valid_path_format(const std::string& file_path)
{
return !file_path.empty();
}
//----------------------------------------------------------------------------------------------------
bool wallet2::parse_long_payment_id(const std::string& payment_id_str, crypto::hash& payment_id)
{
cryptonote::blobdata payment_id_data;
if(!epee::string_tools::parse_hexstr_to_binbuff(payment_id_str, payment_id_data))
return false;
if(sizeof(crypto::hash) != payment_id_data.size())
return false;
payment_id = *reinterpret_cast<const crypto::hash*>(payment_id_data.data());
return true;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::parse_short_payment_id(const std::string& payment_id_str, crypto::hash8& payment_id)
{
cryptonote::blobdata payment_id_data;
if(!epee::string_tools::parse_hexstr_to_binbuff(payment_id_str, payment_id_data))
return false;
if(sizeof(crypto::hash8) != payment_id_data.size())
return false;
payment_id = *reinterpret_cast<const crypto::hash8*>(payment_id_data.data());
return true;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::parse_payment_id(const std::string& payment_id_str, crypto::hash& payment_id)
{
if (parse_long_payment_id(payment_id_str, payment_id))
return true;
crypto::hash8 payment_id8;
if (parse_short_payment_id(payment_id_str, payment_id8))
{
memcpy(payment_id.data, payment_id8.data, 8);
memset(payment_id.data + 8, 0, 24);
return true;
}
return false;
}
//----------------------------------------------------------------------------------------------------
void wallet2::set_default_decimal_point(unsigned int decimal_point)
{
cryptonote::set_default_decimal_point(decimal_point);
}
//----------------------------------------------------------------------------------------------------
unsigned int wallet2::get_default_decimal_point() const
{
return cryptonote::get_default_decimal_point();
}
//----------------------------------------------------------------------------------------------------
bool wallet2::prepare_file_names(const std::string& file_path)
{
do_prepare_file_names(file_path, m_keys_file, m_wallet_file);
return true;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::check_connection(uint32_t *version, uint32_t timeout)
{
THROW_WALLET_EXCEPTION_IF(!m_is_initialized, error::wallet_not_initialized);
boost::lock_guard<boost::mutex> lock(m_daemon_rpc_mutex);
if(!m_http_client.is_connected())
{
m_node_rpc_proxy.invalidate();
if (!m_http_client.connect(std::chrono::milliseconds(timeout)))
return false;
}
if (version)
{
epee::json_rpc::request<cryptonote::COMMAND_RPC_GET_VERSION::request> req_t = AUTO_VAL_INIT(req_t);
epee::json_rpc::response<cryptonote::COMMAND_RPC_GET_VERSION::response, std::string> resp_t = AUTO_VAL_INIT(resp_t);
req_t.jsonrpc = "2.0";
req_t.id = epee::serialization::storage_entry(0);
req_t.method = "get_version";
bool r = net_utils::invoke_http_json("/json_rpc", req_t, resp_t, m_http_client);
if(!r) {
*version = 0;
return false;
}
if (resp_t.result.status != CORE_RPC_STATUS_OK)
*version = 0;
else
*version = resp_t.result.version;
}
return true;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::generate_chacha8_key_from_secret_keys(crypto::chacha8_key &key) const
{
const account_keys &keys = m_account.get_keys();
const crypto::secret_key &view_key = keys.m_view_secret_key;
const crypto::secret_key &spend_key = keys.m_spend_secret_key;
char data[sizeof(view_key) + sizeof(spend_key) + 1];
memcpy(data, &view_key, sizeof(view_key));
memcpy(data + sizeof(view_key), &spend_key, sizeof(spend_key));
data[sizeof(data) - 1] = CHACHA8_KEY_TAIL;
crypto::generate_chacha8_key(data, sizeof(data), key);
memset(data, 0, sizeof(data));
return true;
}
//----------------------------------------------------------------------------------------------------
void wallet2::load(const std::string& wallet_, const std::string& password)
{
clear();
prepare_file_names(wallet_);
boost::system::error_code e;
bool exists = boost::filesystem::exists(m_keys_file, e);
THROW_WALLET_EXCEPTION_IF(e || !exists, error::file_not_found, m_keys_file);
if (!load_keys(m_keys_file, password))
{
THROW_WALLET_EXCEPTION_IF(true, error::file_read_error, m_keys_file);
}
LOG_PRINT_L0("Loaded wallet keys file, with public address: " << m_account.get_public_address_str(m_testnet));
//keys loaded ok!
//try to load wallet file. but even if we failed, it is not big problem
if(!boost::filesystem::exists(m_wallet_file, e) || e)
{
LOG_PRINT_L0("file not found: " << m_wallet_file << ", starting with empty blockchain");
m_account_public_address = m_account.get_keys().m_account_address;
}
else
{
wallet2::cache_file_data cache_file_data;
std::string buf;
bool r = epee::file_io_utils::load_file_to_string(m_wallet_file, buf);
THROW_WALLET_EXCEPTION_IF(!r, error::file_read_error, m_wallet_file);
// try to read it as an encrypted cache
try
{
LOG_PRINT_L1("Trying to decrypt cache data");
r = ::serialization::parse_binary(buf, cache_file_data);
THROW_WALLET_EXCEPTION_IF(!r, error::wallet_internal_error, "internal error: failed to deserialize \"" + m_wallet_file + '\"');
crypto::chacha8_key key;
generate_chacha8_key_from_secret_keys(key);
std::string cache_data;
cache_data.resize(cache_file_data.cache_data.size());
crypto::chacha8(cache_file_data.cache_data.data(), cache_file_data.cache_data.size(), key, cache_file_data.iv, &cache_data[0]);
std::stringstream iss;
iss << cache_data;
try {
boost::archive::portable_binary_iarchive ar(iss);
ar >> *this;
}
catch (...)
{
LOG_PRINT_L0("Failed to open portable binary, trying unportable");
boost::filesystem::copy_file(m_wallet_file, m_wallet_file + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
iss.str("");
iss << cache_data;
boost::archive::binary_iarchive ar(iss);
ar >> *this;
}
}
catch (...)
{
LOG_PRINT_L1("Failed to load encrypted cache, trying unencrypted");
std::stringstream iss;
iss << buf;
try {
boost::archive::portable_binary_iarchive ar(iss);
ar >> *this;
}
catch (...)
{
LOG_PRINT_L0("Failed to open portable binary, trying unportable");
boost::filesystem::copy_file(m_wallet_file, m_wallet_file + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
iss.str("");
iss << buf;
boost::archive::binary_iarchive ar(iss);
ar >> *this;
}
}
THROW_WALLET_EXCEPTION_IF(
m_account_public_address.m_spend_public_key != m_account.get_keys().m_account_address.m_spend_public_key ||
m_account_public_address.m_view_public_key != m_account.get_keys().m_account_address.m_view_public_key,
error::wallet_files_doesnt_correspond, m_keys_file, m_wallet_file);
}
cryptonote::block genesis;
generate_genesis(genesis);
crypto::hash genesis_hash = get_block_hash(genesis);
if (m_blockchain.empty())
{
m_blockchain.push_back(genesis_hash);
}
else
{
check_genesis(genesis_hash);
}
m_local_bc_height = m_blockchain.size();
}
//----------------------------------------------------------------------------------------------------
void wallet2::check_genesis(const crypto::hash& genesis_hash) const {
std::string what("Genesis block mismatch. You probably use wallet without testnet flag with blockchain from test network or vice versa");
THROW_WALLET_EXCEPTION_IF(genesis_hash != m_blockchain[0], error::wallet_internal_error, what);
}
//----------------------------------------------------------------------------------------------------
std::string wallet2::path() const
{
return m_wallet_file;
}
//----------------------------------------------------------------------------------------------------
void wallet2::store()
{
store_to("", "");
}
//----------------------------------------------------------------------------------------------------
void wallet2::store_to(const std::string &path, const std::string &password)
{
// if file is the same, we do:
// 1. save wallet to the *.new file
// 2. remove old wallet file
// 3. rename *.new to wallet_name
// handle if we want just store wallet state to current files (ex store() replacement);
bool same_file = true;
if (!path.empty())
{
std::string canonical_path = boost::filesystem::canonical(m_wallet_file).string();
size_t pos = canonical_path.find(path);
same_file = pos != std::string::npos;
}
if (!same_file)
{
// check if we want to store to directory which doesn't exists yet
boost::filesystem::path parent_path = boost::filesystem::path(path).parent_path();
// if path is not exists, try to create it
if (!parent_path.empty() && !boost::filesystem::exists(parent_path))
{
boost::system::error_code ec;
if (!boost::filesystem::create_directories(parent_path, ec))
{
throw std::logic_error(ec.message());
}
}
}
// preparing wallet data
std::stringstream oss;
boost::archive::portable_binary_oarchive ar(oss);
ar << *this;
wallet2::cache_file_data cache_file_data = boost::value_initialized<wallet2::cache_file_data>();
cache_file_data.cache_data = oss.str();
crypto::chacha8_key key;
generate_chacha8_key_from_secret_keys(key);
std::string cipher;
cipher.resize(cache_file_data.cache_data.size());
cache_file_data.iv = crypto::rand<crypto::chacha8_iv>();
crypto::chacha8(cache_file_data.cache_data.data(), cache_file_data.cache_data.size(), key, cache_file_data.iv, &cipher[0]);
cache_file_data.cache_data = cipher;
const std::string new_file = same_file ? m_wallet_file + ".new" : path;
const std::string old_file = m_wallet_file;
const std::string old_keys_file = m_keys_file;
const std::string old_address_file = m_wallet_file + ".address.txt";
// save to new file
std::ofstream ostr;
ostr.open(new_file, std::ios_base::binary | std::ios_base::out | std::ios_base::trunc);
binary_archive<true> oar(ostr);
bool success = ::serialization::serialize(oar, cache_file_data);
ostr.close();
THROW_WALLET_EXCEPTION_IF(!success || !ostr.good(), error::file_save_error, new_file);
// save keys to the new file
// if we here, main wallet file is saved and we only need to save keys and address files
if (!same_file) {
prepare_file_names(path);
store_keys(m_keys_file, password, false);
// save address to the new file
const std::string address_file = m_wallet_file + ".address.txt";
bool r = file_io_utils::save_string_to_file(address_file, m_account.get_public_address_str(m_testnet));
THROW_WALLET_EXCEPTION_IF(!r, error::file_save_error, m_wallet_file);
// remove old wallet file
r = boost::filesystem::remove(old_file);
if (!r) {
LOG_ERROR("error removing file: " << old_file);
}
// remove old keys file
r = boost::filesystem::remove(old_keys_file);
if (!r) {
LOG_ERROR("error removing file: " << old_keys_file);
}
// remove old address file
r = boost::filesystem::remove(old_address_file);
if (!r) {
LOG_ERROR("error removing file: " << old_address_file);
}
} else {
// here we have "*.new" file, we need to rename it to be without ".new"
std::error_code e = tools::replace_file(new_file, m_wallet_file);
THROW_WALLET_EXCEPTION_IF(e, error::file_save_error, m_wallet_file, e);
}
}
//----------------------------------------------------------------------------------------------------
uint64_t wallet2::unlocked_balance() const
{
uint64_t amount = 0;
for(const transfer_details& td: m_transfers)
if(!td.m_spent && is_transfer_unlocked(td))
amount += td.amount();
return amount;
}
//----------------------------------------------------------------------------------------------------
uint64_t wallet2::balance() const
{
uint64_t amount = 0;
for(auto& td: m_transfers)
if(!td.m_spent)
amount += td.amount();
for(auto& utx: m_unconfirmed_txs)
if (utx.second.m_state != wallet2::unconfirmed_transfer_details::failed)
amount+= utx.second.m_change;
return amount;
}
//----------------------------------------------------------------------------------------------------
void wallet2::get_transfers(wallet2::transfer_container& incoming_transfers) const
{
incoming_transfers = m_transfers;
}
//----------------------------------------------------------------------------------------------------
void wallet2::get_payments(const crypto::hash& payment_id, std::list<wallet2::payment_details>& payments, uint64_t min_height) const
{
auto range = m_payments.equal_range(payment_id);
std::for_each(range.first, range.second, [&payments, &min_height](const payment_container::value_type& x) {
if (min_height < x.second.m_block_height)
{
payments.push_back(x.second);
}
});
}
//----------------------------------------------------------------------------------------------------
void wallet2::get_payments(std::list<std::pair<crypto::hash,wallet2::payment_details>>& payments, uint64_t min_height, uint64_t max_height) const
{
auto range = std::make_pair(m_payments.begin(), m_payments.end());
std::for_each(range.first, range.second, [&payments, &min_height, &max_height](const payment_container::value_type& x) {
if (min_height < x.second.m_block_height && max_height >= x.second.m_block_height)
{
payments.push_back(x);
}
});
}
//----------------------------------------------------------------------------------------------------
void wallet2::get_payments_out(std::list<std::pair<crypto::hash,wallet2::confirmed_transfer_details>>& confirmed_payments,
uint64_t min_height, uint64_t max_height) const
{
for (auto i = m_confirmed_txs.begin(); i != m_confirmed_txs.end(); ++i) {
if (i->second.m_block_height > min_height && i->second.m_block_height <= max_height) {
confirmed_payments.push_back(*i);
}
}
}
//----------------------------------------------------------------------------------------------------
void wallet2::get_unconfirmed_payments_out(std::list<std::pair<crypto::hash,wallet2::unconfirmed_transfer_details>>& unconfirmed_payments) const
{
for (auto i = m_unconfirmed_txs.begin(); i != m_unconfirmed_txs.end(); ++i) {
unconfirmed_payments.push_back(*i);
}
}
//----------------------------------------------------------------------------------------------------
void wallet2::get_unconfirmed_payments(std::list<std::pair<crypto::hash,wallet2::payment_details>>& unconfirmed_payments) const
{
for (auto i = m_unconfirmed_payments.begin(); i != m_unconfirmed_payments.end(); ++i) {
unconfirmed_payments.push_back(*i);
}
}
//----------------------------------------------------------------------------------------------------
void wallet2::rescan_spent()
{
// This is RPC call that can take a long time if there are many outputs,
// so we call it several times, in stripes, so we don't time out spuriously
std::vector<int> spent_status;
spent_status.reserve(m_transfers.size());
const size_t chunk_size = 1000;
for (size_t start_offset = 0; start_offset < m_transfers.size(); start_offset += chunk_size)
{
const size_t n_outputs = std::min<size_t>(chunk_size, m_transfers.size() - start_offset);
MDEBUG("Calling is_key_image_spent on " << start_offset << " - " << (start_offset + n_outputs - 1) << ", out of " << m_transfers.size());
COMMAND_RPC_IS_KEY_IMAGE_SPENT::request req = AUTO_VAL_INIT(req);
COMMAND_RPC_IS_KEY_IMAGE_SPENT::response daemon_resp = AUTO_VAL_INIT(daemon_resp);
for (size_t n = start_offset; n < start_offset + n_outputs; ++n)
req.key_images.push_back(string_tools::pod_to_hex(m_transfers[n].m_key_image));
m_daemon_rpc_mutex.lock();
bool r = epee::net_utils::invoke_http_json("/is_key_image_spent", req, daemon_resp, m_http_client, rpc_timeout);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "is_key_image_spent");
THROW_WALLET_EXCEPTION_IF(daemon_resp.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "is_key_image_spent");
THROW_WALLET_EXCEPTION_IF(daemon_resp.status != CORE_RPC_STATUS_OK, error::is_key_image_spent_error, daemon_resp.status);
THROW_WALLET_EXCEPTION_IF(daemon_resp.spent_status.size() != n_outputs, error::wallet_internal_error,
"daemon returned wrong response for is_key_image_spent, wrong amounts count = " +
std::to_string(daemon_resp.spent_status.size()) + ", expected " + std::to_string(n_outputs));
std::copy(daemon_resp.spent_status.begin(), daemon_resp.spent_status.end(), std::back_inserter(spent_status));
}
// update spent status
for (size_t i = 0; i < m_transfers.size(); ++i)
{
transfer_details& td = m_transfers[i];
// a view wallet may not know about key images
if (!td.m_key_image_known)
continue;
if (td.m_spent != (spent_status[i] != COMMAND_RPC_IS_KEY_IMAGE_SPENT::UNSPENT))
{
if (td.m_spent)
{
LOG_PRINT_L0("Marking output " << i << "(" << td.m_key_image << ") as unspent, it was marked as spent");
set_unspent(i);
td.m_spent_height = 0;
}
else
{
LOG_PRINT_L0("Marking output " << i << "(" << td.m_key_image << ") as spent, it was marked as unspent");
set_spent(i, td.m_spent_height);
// unknown height, if this gets reorged, it might still be missed
}
}
}
}
//----------------------------------------------------------------------------------------------------
void wallet2::rescan_blockchain(bool refresh)
{
clear();
cryptonote::block genesis;
generate_genesis(genesis);
crypto::hash genesis_hash = get_block_hash(genesis);
m_blockchain.push_back(genesis_hash);
m_local_bc_height = 1;
if (refresh)
this->refresh();
}
//----------------------------------------------------------------------------------------------------
bool wallet2::is_transfer_unlocked(const transfer_details& td) const
{
if(!is_tx_spendtime_unlocked(td.m_tx.unlock_time, td.m_block_height))
return false;
if(td.m_block_height + CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE > m_blockchain.size())
return false;
return true;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::is_tx_spendtime_unlocked(uint64_t unlock_time, uint64_t block_height) const
{
if(unlock_time < CRYPTONOTE_MAX_BLOCK_NUMBER)
{
//interpret as block index
if(m_blockchain.size()-1 + CRYPTONOTE_LOCKED_TX_ALLOWED_DELTA_BLOCKS >= unlock_time)
return true;
else
return false;
}else
{
//interpret as time
uint64_t current_time = static_cast<uint64_t>(time(NULL));
// XXX: this needs to be fast, so we'd need to get the starting heights
// from the daemon to be correct once voting kicks in
uint64_t v2height = m_testnet ? 624634 : 1009827;
uint64_t leeway = block_height < v2height ? CRYPTONOTE_LOCKED_TX_ALLOWED_DELTA_SECONDS_V1 : CRYPTONOTE_LOCKED_TX_ALLOWED_DELTA_SECONDS_V2;
if(current_time + leeway >= unlock_time)
return true;
else
return false;
}
return false;
}
//----------------------------------------------------------------------------------------------------
namespace
{
template<typename T>
T pop_index(std::vector<T>& vec, size_t idx)
{
CHECK_AND_ASSERT_MES(!vec.empty(), T(), "Vector must be non-empty");
CHECK_AND_ASSERT_MES(idx < vec.size(), T(), "idx out of bounds");
T res = vec[idx];
if (idx + 1 != vec.size())
{
vec[idx] = vec.back();
}
vec.resize(vec.size() - 1);
return res;
}
template<typename T>
T pop_random_value(std::vector<T>& vec)
{
CHECK_AND_ASSERT_MES(!vec.empty(), T(), "Vector must be non-empty");
size_t idx = crypto::rand<size_t>() % vec.size();
return pop_index (vec, idx);
}
template<typename T>
T pop_back(std::vector<T>& vec)
{
CHECK_AND_ASSERT_MES(!vec.empty(), T(), "Vector must be non-empty");
T res = vec.back();
vec.pop_back();
return res;
}
template<typename T>
void pop_if_present(std::vector<T>& vec, T e)
{
for (size_t i = 0; i < vec.size(); ++i)
{
if (e == vec[i])
{
pop_index (vec, i);
return;
}
}
}
}
//----------------------------------------------------------------------------------------------------
// This returns a handwavy estimation of how much two outputs are related
// If they're from the same tx, then they're fully related. From close block
// heights, they're kinda related. The actual values don't matter, just
// their ordering, but it could become more murky if we add scores later.
float wallet2::get_output_relatedness(const transfer_details &td0, const transfer_details &td1) const
{
int dh;
// expensive test, and same tx will fall onto the same block height below
if (td0.m_txid == td1.m_txid)
return 1.0f;
// same block height -> possibly tx burst, or same tx (since above is disabled)
dh = td0.m_block_height > td1.m_block_height ? td0.m_block_height - td1.m_block_height : td1.m_block_height - td0.m_block_height;
if (dh == 0)
return 0.9f;
// adjacent blocks -> possibly tx burst
if (dh == 1)
return 0.8f;
// could extract the payment id, and compare them, but this is a bit expensive too
// similar block heights
if (dh < 10)
return 0.2f;
// don't think these are particularly related
return 0.0f;
}
//----------------------------------------------------------------------------------------------------
size_t wallet2::pop_best_value_from(const transfer_container &transfers, std::vector<size_t> &unused_indices, const std::list<size_t>& selected_transfers, bool smallest) const
{
std::vector<size_t> candidates;
float best_relatedness = 1.0f;
for (size_t n = 0; n < unused_indices.size(); ++n)
{
const transfer_details &candidate = transfers[unused_indices[n]];
float relatedness = 0.0f;
for (std::list<size_t>::const_iterator i = selected_transfers.begin(); i != selected_transfers.end(); ++i)
{
float r = get_output_relatedness(candidate, transfers[*i]);
if (r > relatedness)
{
relatedness = r;
if (relatedness == 1.0f)
break;
}
}
if (relatedness < best_relatedness)
{
best_relatedness = relatedness;
candidates.clear();
}
if (relatedness == best_relatedness)
candidates.push_back(n);
}
// we have all the least related outputs in candidates, so we can pick either
// the smallest, or a random one, depending on request
size_t idx;
if (smallest)
{
idx = 0;
for (size_t n = 0; n < candidates.size(); ++n)
{
const transfer_details &td = transfers[unused_indices[candidates[n]]];
if (td.amount() < transfers[unused_indices[candidates[idx]]].amount())
idx = n;
}
}
else
{
idx = crypto::rand<size_t>() % candidates.size();
}
return pop_index (unused_indices, candidates[idx]);
}
//----------------------------------------------------------------------------------------------------
size_t wallet2::pop_best_value(std::vector<size_t> &unused_indices, const std::list<size_t>& selected_transfers, bool smallest) const
{
return pop_best_value_from(m_transfers, unused_indices, selected_transfers, smallest);
}
//----------------------------------------------------------------------------------------------------
// Select random input sources for transaction.
// returns:
// direct return: amount of money found
// modified reference: selected_transfers, a list of iterators/indices of input sources
uint64_t wallet2::select_transfers(uint64_t needed_money, std::vector<size_t> unused_transfers_indices, std::list<size_t>& selected_transfers, bool trusted_daemon)
{
uint64_t found_money = 0;
while (found_money < needed_money && !unused_transfers_indices.empty())
{
size_t idx = pop_best_value(unused_transfers_indices, selected_transfers);
transfer_container::iterator it = m_transfers.begin() + idx;
selected_transfers.push_back(idx);
found_money += it->amount();
}
return found_money;
}
//----------------------------------------------------------------------------------------------------
void wallet2::add_unconfirmed_tx(const cryptonote::transaction& tx, uint64_t amount_in, const std::vector<cryptonote::tx_destination_entry> &dests, const crypto::hash &payment_id, uint64_t change_amount)
{
unconfirmed_transfer_details& utd = m_unconfirmed_txs[cryptonote::get_transaction_hash(tx)];
utd.m_amount_in = amount_in;
utd.m_amount_out = 0;
for (const auto &d: dests)
utd.m_amount_out += d.amount;
utd.m_amount_out += change_amount; // dests does not contain change
utd.m_change = change_amount;
utd.m_sent_time = time(NULL);
utd.m_tx = (const cryptonote::transaction_prefix&)tx;
utd.m_dests = dests;
utd.m_payment_id = payment_id;
utd.m_state = wallet2::unconfirmed_transfer_details::pending;
utd.m_timestamp = time(NULL);
}
//----------------------------------------------------------------------------------------------------
void wallet2::transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, const size_t fake_outs_count, const std::vector<size_t> &unused_transfers_indices,
uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra, cryptonote::transaction& tx, pending_tx& ptx, bool trusted_daemon)
{
transfer(dsts, fake_outs_count, unused_transfers_indices, unlock_time, fee, extra, detail::digit_split_strategy, tx_dust_policy(::config::DEFAULT_DUST_THRESHOLD), tx, ptx, trusted_daemon);
}
//----------------------------------------------------------------------------------------------------
void wallet2::transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, const size_t fake_outs_count, const std::vector<size_t> &unused_transfers_indices,
uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra, bool trusted_daemon)
{
cryptonote::transaction tx;
pending_tx ptx;
transfer(dsts, fake_outs_count, unused_transfers_indices, unlock_time, fee, extra, tx, ptx, trusted_daemon);
}
namespace {
// split_amounts(vector<cryptonote::tx_destination_entry> dsts, size_t num_splits)
//
// split amount for each dst in dsts into num_splits parts
// and make num_splits new vector<crypt...> instances to hold these new amounts
std::vector<std::vector<cryptonote::tx_destination_entry>> split_amounts(
std::vector<cryptonote::tx_destination_entry> dsts, size_t num_splits)
{
std::vector<std::vector<cryptonote::tx_destination_entry>> retVal;
if (num_splits <= 1)
{
retVal.push_back(dsts);
return retVal;
}
// for each split required
for (size_t i=0; i < num_splits; i++)
{
std::vector<cryptonote::tx_destination_entry> new_dsts;
// for each destination
for (size_t j=0; j < dsts.size(); j++)
{
cryptonote::tx_destination_entry de;
uint64_t amount;
amount = dsts[j].amount;
amount = amount / num_splits;
// if last split, add remainder
if (i + 1 == num_splits)
{
amount += dsts[j].amount % num_splits;
}
de.addr = dsts[j].addr;
de.amount = amount;
new_dsts.push_back(de);
}
retVal.push_back(new_dsts);
}
return retVal;
}
} // anonymous namespace
//----------------------------------------------------------------------------------------------------
crypto::hash wallet2::get_payment_id(const pending_tx &ptx) const
{
std::vector<tx_extra_field> tx_extra_fields;
if(!parse_tx_extra(ptx.tx.extra, tx_extra_fields))
return cryptonote::null_hash;
tx_extra_nonce extra_nonce;
crypto::hash payment_id = null_hash;
if (find_tx_extra_field_by_type(tx_extra_fields, extra_nonce))
{
crypto::hash8 payment_id8 = null_hash8;
if(get_encrypted_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id8))
{
if (decrypt_payment_id(payment_id8, ptx.dests[0].addr.m_view_public_key, ptx.tx_key))
{
memcpy(payment_id.data, payment_id8.data, 8);
}
}
else if (!get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id))
{
payment_id = cryptonote::null_hash;
}
}
return payment_id;
}
crypto::hash8 wallet2::get_short_payment_id(const pending_tx &ptx) const
{
crypto::hash8 payment_id8 = null_hash8;
std::vector<tx_extra_field> tx_extra_fields;
if(!parse_tx_extra(ptx.tx.extra, tx_extra_fields))
return payment_id8;
cryptonote::tx_extra_nonce extra_nonce;
if (find_tx_extra_field_by_type(tx_extra_fields, extra_nonce))
{
if(get_encrypted_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id8))
{
decrypt_payment_id(payment_id8, ptx.dests[0].addr.m_view_public_key, ptx.tx_key);
}
}
return payment_id8;
}
//----------------------------------------------------------------------------------------------------
// take a pending tx and actually send it to the daemon
void wallet2::commit_tx(pending_tx& ptx)
{
using namespace cryptonote;
crypto::hash txid;
COMMAND_RPC_SEND_RAW_TX::request req;
req.tx_as_hex = epee::string_tools::buff_to_hex_nodelimer(tx_to_blob(ptx.tx));
req.do_not_relay = false;
COMMAND_RPC_SEND_RAW_TX::response daemon_send_resp;
m_daemon_rpc_mutex.lock();
bool r = epee::net_utils::invoke_http_json("/sendrawtransaction", req, daemon_send_resp, m_http_client, rpc_timeout);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "sendrawtransaction");
THROW_WALLET_EXCEPTION_IF(daemon_send_resp.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "sendrawtransaction");
THROW_WALLET_EXCEPTION_IF(daemon_send_resp.status != CORE_RPC_STATUS_OK, error::tx_rejected, ptx.tx, daemon_send_resp.status, daemon_send_resp.reason);
// sanity checks
for (size_t idx: ptx.selected_transfers)
{
THROW_WALLET_EXCEPTION_IF(idx >= m_transfers.size(), error::wallet_internal_error,
"Bad output index in selected transfers: " + boost::lexical_cast<std::string>(idx));
}
txid = get_transaction_hash(ptx.tx);
crypto::hash payment_id = cryptonote::null_hash;
std::vector<cryptonote::tx_destination_entry> dests;
uint64_t amount_in = 0;
if (store_tx_info())
{
payment_id = get_payment_id(ptx);
dests = ptx.dests;
for(size_t idx: ptx.selected_transfers)
amount_in += m_transfers[idx].amount();
}
add_unconfirmed_tx(ptx.tx, amount_in, dests, payment_id, ptx.change_dts.amount);
if (store_tx_info())
{
m_tx_keys.insert(std::make_pair(txid, ptx.tx_key));
}
LOG_PRINT_L2("transaction " << txid << " generated ok and sent to daemon, key_images: [" << ptx.key_images << "]");
for(size_t idx: ptx.selected_transfers)
{
set_spent(idx, 0);
}
//fee includes dust if dust policy specified it.
LOG_PRINT_L1("Transaction successfully sent. <" << txid << ">" << ENDL
<< "Commission: " << print_money(ptx.fee) << " (dust sent to dust addr: " << print_money((ptx.dust_added_to_fee ? 0 : ptx.dust)) << ")" << ENDL
<< "Balance: " << print_money(balance()) << ENDL
<< "Unlocked: " << print_money(unlocked_balance()) << ENDL
<< "Please, wait for confirmation for your balance to be unlocked.");
}
void wallet2::commit_tx(std::vector<pending_tx>& ptx_vector)
{
for (auto & ptx : ptx_vector)
{
commit_tx(ptx);
}
}
//----------------------------------------------------------------------------------------------------
bool wallet2::save_tx(const std::vector<pending_tx>& ptx_vector, const std::string &filename)
{
LOG_PRINT_L0("saving " << ptx_vector.size() << " transactions");
unsigned_tx_set txs;
for (auto &tx: ptx_vector)
{
tx_construction_data construction_data = tx.construction_data;
// Short payment id is encrypted with tx_key.
// Since sign_tx() generates new tx_keys and encrypts the payment id, we need to save the decrypted payment ID
// Get decrypted payment id from pending_tx
crypto::hash8 payment_id = get_short_payment_id(tx);
if (payment_id != null_hash8)
{
// Remove encrypted
remove_field_from_tx_extra(construction_data.extra, typeid(cryptonote::tx_extra_nonce));
// Add decrypted
std::string extra_nonce;
set_encrypted_payment_id_to_tx_extra_nonce(extra_nonce, payment_id);
if (!add_extra_nonce_to_tx_extra(construction_data.extra, extra_nonce))
{
LOG_ERROR("Failed to add decrypted payment id to tx extra");
return false;
}
LOG_PRINT_L1("Decrypted payment ID: " << payment_id);
}
// Save tx construction_data to unsigned_tx_set
txs.txes.push_back(construction_data);
}
txs.transfers = m_transfers;
// save as binary
std::ostringstream oss;
boost::archive::portable_binary_oarchive ar(oss);
try
{
ar << txs;
}
catch (...)
{
return false;
}
LOG_PRINT_L2("Saving unsigned tx data: " << oss.str());
return epee::file_io_utils::save_string_to_file(filename, std::string(UNSIGNED_TX_PREFIX) + oss.str());
}
//----------------------------------------------------------------------------------------------------
bool wallet2::load_unsigned_tx(const std::string &unsigned_filename, unsigned_tx_set &exported_txs)
{
std::string s;
boost::system::error_code errcode;
if (!boost::filesystem::exists(unsigned_filename, errcode))
{
LOG_PRINT_L0("File " << unsigned_filename << " does not exist: " << errcode);
return false;
}
if (!epee::file_io_utils::load_file_to_string(unsigned_filename.c_str(), s))
{
LOG_PRINT_L0("Failed to load from " << unsigned_filename);
return false;
}
const size_t magiclen = strlen(UNSIGNED_TX_PREFIX);
if (strncmp(s.c_str(), UNSIGNED_TX_PREFIX, magiclen))
{
LOG_PRINT_L0("Bad magic from " << unsigned_filename);
return false;
}
s = s.substr(magiclen);
try
{
std::istringstream iss(s);
boost::archive::portable_binary_iarchive ar(iss);
ar >> exported_txs;
}
catch (...)
{
LOG_PRINT_L0("Failed to parse data from " << unsigned_filename);
return false;
}
LOG_PRINT_L1("Loaded tx unsigned data from binary: " << exported_txs.txes.size() << " transactions");
return true;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::sign_tx(const std::string &unsigned_filename, const std::string &signed_filename, std::vector<wallet2::pending_tx> &txs, std::function<bool(const unsigned_tx_set&)> accept_func)
{
unsigned_tx_set exported_txs;
if(!load_unsigned_tx(unsigned_filename, exported_txs))
return false;
if (accept_func && !accept_func(exported_txs))
{
LOG_PRINT_L1("Transactions rejected by callback");
return false;
}
return sign_tx(exported_txs, signed_filename, txs);
}
//----------------------------------------------------------------------------------------------------
bool wallet2::sign_tx(unsigned_tx_set &exported_txs, const std::string &signed_filename, std::vector<wallet2::pending_tx> &txs)
{
import_outputs(exported_txs.transfers);
// sign the transactions
signed_tx_set signed_txes;
for (size_t n = 0; n < exported_txs.txes.size(); ++n)
{
const tools::wallet2::tx_construction_data &sd = exported_txs.txes[n];
LOG_PRINT_L1(" " << (n+1) << ": " << sd.sources.size() << " inputs, mixin " << (sd.sources[0].outputs.size()-1));
signed_txes.ptx.push_back(pending_tx());
tools::wallet2::pending_tx &ptx = signed_txes.ptx.back();
crypto::secret_key tx_key;
bool r = cryptonote::construct_tx_and_get_tx_key(m_account.get_keys(), sd.sources, sd.splitted_dsts, sd.extra, ptx.tx, sd.unlock_time, tx_key, sd.use_rct);
THROW_WALLET_EXCEPTION_IF(!r, error::tx_not_constructed, sd.sources, sd.splitted_dsts, sd.unlock_time, m_testnet);
// we don't test tx size, because we don't know the current limit, due to not having a blockchain,
// and it's a bit pointless to fail there anyway, since it'd be a (good) guess only. We sign anyway,
// and if we really go over limit, the daemon will reject when it gets submitted. Chances are it's
// OK anyway since it was generated in the first place, and rerolling should be within a few bytes.
// normally, the tx keys are saved in commit_tx, when the tx is actually sent to the daemon.
// we can't do that here since the tx will be sent from the compromised wallet, which we don't want
// to see that info, so we save it here
if (store_tx_info())
{
const crypto::hash txid = get_transaction_hash(ptx.tx);
m_tx_keys.insert(std::make_pair(txid, tx_key));
}
std::string key_images;
bool all_are_txin_to_key = std::all_of(ptx.tx.vin.begin(), ptx.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;
});
THROW_WALLET_EXCEPTION_IF(!all_are_txin_to_key, error::unexpected_txin_type, ptx.tx);
ptx.key_images = key_images;
ptx.fee = 0;
for (const auto &i: sd.sources) ptx.fee += i.amount;
for (const auto &i: sd.splitted_dsts) ptx.fee -= i.amount;
ptx.dust = 0;
ptx.dust_added_to_fee = false;
ptx.change_dts = sd.change_dts;
ptx.selected_transfers = sd.selected_transfers;
ptx.tx_key = rct::rct2sk(rct::identity()); // don't send it back to the untrusted view wallet
ptx.dests = sd.dests;
ptx.construction_data = sd;
txs.push_back(ptx);
}
// add key images
signed_txes.key_images.resize(m_transfers.size());
for (size_t i = 0; i < m_transfers.size(); ++i)
{
if (!m_transfers[i].m_key_image_known)
LOG_PRINT_L0("WARNING: key image not known in signing wallet at index " << i);
signed_txes.key_images[i] = m_transfers[i].m_key_image;
}
// save as binary
std::ostringstream oss;
boost::archive::portable_binary_oarchive ar(oss);
try
{
ar << signed_txes;
}
catch(...)
{
return false;
}
LOG_PRINT_L3("Saving signed tx data: " << oss.str());
return epee::file_io_utils::save_string_to_file(signed_filename, std::string(SIGNED_TX_PREFIX) + oss.str());
}
//----------------------------------------------------------------------------------------------------
bool wallet2::load_tx(const std::string &signed_filename, std::vector<tools::wallet2::pending_tx> &ptx, std::function<bool(const signed_tx_set&)> accept_func)
{
std::string s;
boost::system::error_code errcode;
signed_tx_set signed_txs;
if (!boost::filesystem::exists(signed_filename, errcode))
{
LOG_PRINT_L0("File " << signed_filename << " does not exist: " << errcode);
return false;
}
if (!epee::file_io_utils::load_file_to_string(signed_filename.c_str(), s))
{
LOG_PRINT_L0("Failed to load from " << signed_filename);
return false;
}
const size_t magiclen = strlen(SIGNED_TX_PREFIX);
if (strncmp(s.c_str(), SIGNED_TX_PREFIX, magiclen))
{
LOG_PRINT_L0("Bad magic from " << signed_filename);
return false;
}
s = s.substr(magiclen);
try
{
std::istringstream iss(s);
boost::archive::portable_binary_iarchive ar(iss);
ar >> signed_txs;
}
catch (...)
{
LOG_PRINT_L0("Failed to parse data from " << signed_filename);
return false;
}
LOG_PRINT_L0("Loaded signed tx data from binary: " << signed_txs.ptx.size() << " transactions");
for (auto &ptx: signed_txs.ptx) LOG_PRINT_L0(cryptonote::obj_to_json_str(ptx.tx));
if (accept_func && !accept_func(signed_txs))
{
LOG_PRINT_L1("Transactions rejected by callback");
return false;
}
// import key images
if (signed_txs.key_images.size() > m_transfers.size())
{
LOG_PRINT_L1("More key images returned that we know outputs for");
return false;
}
for (size_t i = 0; i < signed_txs.key_images.size(); ++i)
{
transfer_details &td = m_transfers[i];
if (td.m_key_image_known && td.m_key_image != signed_txs.key_images[i])
LOG_PRINT_L0("WARNING: imported key image differs from previously known key image at index " << i << ": trusting imported one");
td.m_key_image = signed_txs.key_images[i];
m_key_images[m_transfers[i].m_key_image] = i;
td.m_key_image_known = true;
m_pub_keys[m_transfers[i].get_public_key()] = i;
}
ptx = signed_txs.ptx;
return true;
}
//----------------------------------------------------------------------------------------------------
uint64_t wallet2::get_fee_multiplier(uint32_t priority, int fee_algorithm) const
{
static const uint64_t old_multipliers[3] = {1, 2, 3};
static const uint64_t new_multipliers[3] = {1, 20, 166};
static const uint64_t newer_multipliers[4] = {1, 4, 20, 166};
// 0 -> default (here, x1 till fee algorithm 2, x4 from it)
if (priority == 0)
priority = m_default_priority;
if (priority == 0)
{
if (fee_algorithm >= 2)
priority = 2;
else
priority = 1;
}
// 1 to 3/4 are allowed as priorities
uint32_t max_priority = (fee_algorithm >= 2) ? 4 : 3;
if (priority >= 1 && priority <= max_priority)
{
switch (fee_algorithm)
{
case 0: return old_multipliers[priority-1];
case 1: return new_multipliers[priority-1];
case 2: return newer_multipliers[priority-1];
default: THROW_WALLET_EXCEPTION_IF (true, error::invalid_priority);
}
}
THROW_WALLET_EXCEPTION_IF (false, error::invalid_priority);
return 1;
}
//----------------------------------------------------------------------------------------------------
uint64_t wallet2::get_dynamic_per_kb_fee_estimate()
{
uint64_t fee;
boost::optional<std::string> result = m_node_rpc_proxy.get_dynamic_per_kb_fee_estimate(FEE_ESTIMATE_GRACE_BLOCKS, fee);
if (!result)
return fee;
LOG_PRINT_L1("Failed to query per kB fee, using " << print_money(FEE_PER_KB));
return FEE_PER_KB;
}
//----------------------------------------------------------------------------------------------------
uint64_t wallet2::get_per_kb_fee()
{
bool use_dyn_fee = use_fork_rules(HF_VERSION_DYNAMIC_FEE, -720 * 1);
if (!use_dyn_fee)
return FEE_PER_KB;
return get_dynamic_per_kb_fee_estimate();
}
//----------------------------------------------------------------------------------------------------
int wallet2::get_fee_algorithm()
{
// changes at v3 and v5
if (use_fork_rules(5, 0))
return 2;
if (use_fork_rules(3, -720 * 14))
return 1;
return 0;
}
//----------------------------------------------------------------------------------------------------
// separated the call(s) to wallet2::transfer into their own function
//
// this function will make multiple calls to wallet2::transfer if multiple
// transactions will be required
std::vector<wallet2::pending_tx> wallet2::create_transactions(std::vector<cryptonote::tx_destination_entry> dsts, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t> extra, bool trusted_daemon)
{
const std::vector<size_t> unused_transfers_indices = select_available_outputs_from_histogram(fake_outs_count + 1, true, true, true, trusted_daemon);
const uint64_t fee_per_kb = get_per_kb_fee();
const uint64_t fee_multiplier = get_fee_multiplier(priority, get_fee_algorithm());
// failsafe split attempt counter
size_t attempt_count = 0;
for(attempt_count = 1; ;attempt_count++)
{
size_t num_tx = 0.5 + pow(1.7,attempt_count-1);
auto split_values = split_amounts(dsts, num_tx);
// Throw if split_amounts comes back with a vector of size different than it should
if (split_values.size() != num_tx)
{
throw std::runtime_error("Splitting transactions returned a number of potential tx not equal to what was requested");
}
std::vector<pending_tx> ptx_vector;
try
{
// for each new destination vector (i.e. for each new tx)
for (auto & dst_vector : split_values)
{
cryptonote::transaction tx;
pending_tx ptx;
// loop until fee is met without increasing tx size to next KB boundary.
uint64_t needed_fee = 0;
do
{
transfer(dst_vector, fake_outs_count, unused_transfers_indices, unlock_time, needed_fee, extra, tx, ptx, trusted_daemon);
auto txBlob = t_serializable_object_to_blob(ptx.tx);
needed_fee = calculate_fee(fee_per_kb, txBlob, fee_multiplier);
} while (ptx.fee < needed_fee);
ptx_vector.push_back(ptx);
// mark transfers to be used as "spent"
for(size_t idx: ptx.selected_transfers)
{
set_spent(idx, 0);
}
}
// if we made it this far, we've selected our transactions. committing them will mark them spent,
// so this is a failsafe in case they don't go through
// unmark pending tx transfers as spent
for (auto & ptx : ptx_vector)
{
// mark transfers to be used as not spent
for(size_t idx2: ptx.selected_transfers)
{
set_unspent(idx2);
}
}
// if we made it this far, we're OK to actually send the transactions
return ptx_vector;
}
// only catch this here, other exceptions need to pass through to the calling function
catch (const tools::error::tx_too_big& e)
{
// unmark pending tx transfers as spent
for (auto & ptx : ptx_vector)
{
// mark transfers to be used as not spent
for(size_t idx2: ptx.selected_transfers)
{
set_unspent(idx2);
}
}
if (attempt_count >= MAX_SPLIT_ATTEMPTS)
{
throw;
}
}
catch (...)
{
// in case of some other exception, make sure any tx in queue are marked unspent again
// unmark pending tx transfers as spent
for (auto & ptx : ptx_vector)
{
// mark transfers to be used as not spent
for(size_t idx2: ptx.selected_transfers)
{
set_unspent(idx2);
}
}
throw;
}
}
}
void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>> &outs, const std::list<size_t> &selected_transfers, size_t fake_outputs_count)
{
LOG_PRINT_L2("fake_outputs_count: " << fake_outputs_count);
outs.clear();
if (fake_outputs_count > 0)
{
// get histogram for the amounts we need
epee::json_rpc::request<cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::request> req_t = AUTO_VAL_INIT(req_t);
epee::json_rpc::response<cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::response, std::string> resp_t = AUTO_VAL_INIT(resp_t);
m_daemon_rpc_mutex.lock();
req_t.jsonrpc = "2.0";
req_t.id = epee::serialization::storage_entry(0);
req_t.method = "get_output_histogram";
for(size_t idx: selected_transfers)
req_t.params.amounts.push_back(m_transfers[idx].is_rct() ? 0 : m_transfers[idx].amount());
std::sort(req_t.params.amounts.begin(), req_t.params.amounts.end());
auto end = std::unique(req_t.params.amounts.begin(), req_t.params.amounts.end());
req_t.params.amounts.resize(std::distance(req_t.params.amounts.begin(), end));
req_t.params.unlocked = true;
req_t.params.recent_cutoff = time(NULL) - RECENT_OUTPUT_ZONE;
bool r = net_utils::invoke_http_json("/json_rpc", req_t, resp_t, m_http_client, rpc_timeout);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "transfer_selected");
THROW_WALLET_EXCEPTION_IF(resp_t.result.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "get_output_histogram");
THROW_WALLET_EXCEPTION_IF(resp_t.result.status != CORE_RPC_STATUS_OK, error::get_histogram_error, resp_t.result.status);
// we ask for more, to have spares if some outputs are still locked
size_t base_requested_outputs_count = (size_t)((fake_outputs_count + 1) * 1.5 + 1);
LOG_PRINT_L2("base_requested_outputs_count: " << base_requested_outputs_count);
// generate output indices to request
COMMAND_RPC_GET_OUTPUTS_BIN::request req = AUTO_VAL_INIT(req);
COMMAND_RPC_GET_OUTPUTS_BIN::response daemon_resp = AUTO_VAL_INIT(daemon_resp);
size_t num_selected_transfers = 0;
for(size_t idx: selected_transfers)
{
++num_selected_transfers;
const transfer_details &td = m_transfers[idx];
const uint64_t amount = td.is_rct() ? 0 : td.amount();
std::unordered_set<uint64_t> seen_indices;
// request more for rct in base recent (locked) coinbases are picked, since they're locked for longer
size_t requested_outputs_count = base_requested_outputs_count + (td.is_rct() ? CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW - CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE : 0);
size_t start = req.outputs.size();
// if there are just enough outputs to mix with, use all of them.
// Eventually this should become impossible.
uint64_t num_outs = 0, num_recent_outs = 0;
for (auto he: resp_t.result.histogram)
{
if (he.amount == amount)
{
LOG_PRINT_L2("Found " << print_money(amount) << ": " << he.total_instances << " total, "
<< he.unlocked_instances << " unlocked, " << he.recent_instances << " recent");
num_outs = he.unlocked_instances;
num_recent_outs = he.recent_instances;
break;
}
}
LOG_PRINT_L1("" << num_outs << " unlocked outputs of size " << print_money(amount));
THROW_WALLET_EXCEPTION_IF(num_outs == 0, error::wallet_internal_error,
"histogram reports no unlocked outputs for " + boost::lexical_cast<std::string>(amount) + ", not even ours");
THROW_WALLET_EXCEPTION_IF(num_recent_outs > num_outs, error::wallet_internal_error,
"histogram reports more recent outs than outs for " + boost::lexical_cast<std::string>(amount));
// X% of those outs are to be taken from recent outputs
size_t recent_outputs_count = requested_outputs_count * RECENT_OUTPUT_RATIO;
if (recent_outputs_count == 0)
recent_outputs_count = 1; // ensure we have at least one, if possible
if (recent_outputs_count > num_recent_outs)
recent_outputs_count = num_recent_outs;
if (td.m_global_output_index >= num_outs - num_recent_outs && recent_outputs_count > 0)
--recent_outputs_count; // if the real out is recent, pick one less recent fake out
LOG_PRINT_L1("Using " << recent_outputs_count << " recent outputs");
if (num_outs <= requested_outputs_count)
{
for (uint64_t i = 0; i < num_outs; i++)
req.outputs.push_back({amount, i});
// duplicate to make up shortfall: this will be caught after the RPC call,
// so we can also output the amounts for which we can't reach the required
// mixin after checking the actual unlockedness
for (uint64_t i = num_outs; i < requested_outputs_count; ++i)
req.outputs.push_back({amount, num_outs - 1});
}
else
{
// start with real one
uint64_t num_found = 1;
seen_indices.emplace(td.m_global_output_index);
req.outputs.push_back({amount, td.m_global_output_index});
LOG_PRINT_L1("Selecting real output: " << td.m_global_output_index << " for " << print_money(amount));
// while we still need more mixins
while (num_found < requested_outputs_count)
{
// if we've gone through every possible output, we've gotten all we can
if (seen_indices.size() == num_outs)
break;
// get a random output index from the DB. If we've already seen it,
// return to the top of the loop and try again, otherwise add it to the
// list of output indices we've seen.
uint64_t i;
if (num_found - 1 < recent_outputs_count) // -1 to account for the real one we seeded with
{
// triangular distribution over [a,b) with a=0, mode c=b=up_index_limit
uint64_t r = crypto::rand<uint64_t>() % ((uint64_t)1 << 53);
double frac = std::sqrt((double)r / ((uint64_t)1 << 53));
i = (uint64_t)(frac*num_recent_outs) + num_outs - num_recent_outs;
// just in case rounding up to 1 occurs after calc
if (i == num_outs)
--i;
LOG_PRINT_L2("picking " << i << " as recent");
}
else
{
// triangular distribution over [a,b) with a=0, mode c=b=up_index_limit
uint64_t r = crypto::rand<uint64_t>() % ((uint64_t)1 << 53);
double frac = std::sqrt((double)r / ((uint64_t)1 << 53));
i = (uint64_t)(frac*num_outs);
// just in case rounding up to 1 occurs after calc
if (i == num_outs)
--i;
LOG_PRINT_L2("picking " << i << " as triangular");
}
if (seen_indices.count(i))
continue;
seen_indices.emplace(i);
req.outputs.push_back({amount, i});
++num_found;
}
}
// sort the subsection, to ensure the daemon doesn't know wich output is ours
std::sort(req.outputs.begin() + start, req.outputs.end(),
[](const get_outputs_out &a, const get_outputs_out &b) { return a.index < b.index; });
}
for (auto i: req.outputs)
LOG_PRINT_L1("asking for output " << i.index << " for " << print_money(i.amount));
// get the keys for those
m_daemon_rpc_mutex.lock();
r = epee::net_utils::invoke_http_bin("/get_outs.bin", req, daemon_resp, m_http_client, rpc_timeout);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "get_outs.bin");
THROW_WALLET_EXCEPTION_IF(daemon_resp.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "get_outs.bin");
THROW_WALLET_EXCEPTION_IF(daemon_resp.status != CORE_RPC_STATUS_OK, error::get_random_outs_error, daemon_resp.status);
THROW_WALLET_EXCEPTION_IF(daemon_resp.outs.size() != req.outputs.size(), error::wallet_internal_error,
"daemon returned wrong response for get_outs.bin, wrong amounts count = " +
std::to_string(daemon_resp.outs.size()) + ", expected " + std::to_string(req.outputs.size()));
std::unordered_map<uint64_t, uint64_t> scanty_outs;
size_t base = 0;
outs.reserve(num_selected_transfers);
for(size_t idx: selected_transfers)
{
const transfer_details &td = m_transfers[idx];
size_t requested_outputs_count = base_requested_outputs_count + (td.is_rct() ? CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW - CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE : 0);
outs.push_back(std::vector<get_outs_entry>());
outs.back().reserve(fake_outputs_count + 1);
const rct::key mask = td.is_rct() ? rct::commit(td.amount(), td.m_mask) : rct::zeroCommit(td.amount());
// make sure the real outputs we asked for are really included, along
// with the correct key and mask: this guards against an active attack
// where the node sends dummy data for all outputs, and we then send
// the real one, which the node can then tell from the fake outputs,
// as it has different data than the dummy data it had sent earlier
bool real_out_found = false;
for (size_t n = 0; n < requested_outputs_count; ++n)
{
size_t i = base + n;
if (req.outputs[i].index == td.m_global_output_index)
if (daemon_resp.outs[i].key == boost::get<txout_to_key>(td.m_tx.vout[td.m_internal_output_index].target).key)
if (daemon_resp.outs[i].mask == mask)
real_out_found = true;
}
THROW_WALLET_EXCEPTION_IF(!real_out_found, error::wallet_internal_error,
"Daemon response did not include the requested real output");
// pick real out first (it will be sorted when done)
outs.back().push_back(std::make_tuple(td.m_global_output_index, boost::get<txout_to_key>(td.m_tx.vout[td.m_internal_output_index].target).key, mask));
// then pick others in random order till we reach the required number
// since we use an equiprobable pick here, we don't upset the triangular distribution
std::vector<size_t> order;
order.resize(requested_outputs_count);
for (size_t n = 0; n < order.size(); ++n)
order[n] = n;
std::shuffle(order.begin(), order.end(), std::default_random_engine(crypto::rand<unsigned>()));
LOG_PRINT_L2("Looking for " << (fake_outputs_count+1) << " outputs of size " << print_money(td.is_rct() ? 0 : td.amount()));
for (size_t o = 0; o < requested_outputs_count && outs.back().size() < fake_outputs_count + 1; ++o)
{
size_t i = base + order[o];
LOG_PRINT_L2("Index " << i << "/" << requested_outputs_count << ": idx " << req.outputs[i].index << " (real " << td.m_global_output_index << "), unlocked " << daemon_resp.outs[i].unlocked << ", key " << daemon_resp.outs[i].key);
if (req.outputs[i].index == td.m_global_output_index) // don't re-add real one
continue;
if (!daemon_resp.outs[i].unlocked) // don't add locked outs
continue;
auto item = std::make_tuple(req.outputs[i].index, daemon_resp.outs[i].key, daemon_resp.outs[i].mask);
if (std::find(outs.back().begin(), outs.back().end(), item) != outs.back().end()) // don't add duplicates
continue;
outs.back().push_back(item);
}
if (outs.back().size() < fake_outputs_count + 1)
{
scanty_outs[td.is_rct() ? 0 : td.amount()] = outs.back().size();
}
else
{
// sort the subsection, so any spares are reset in order
std::sort(outs.back().begin(), outs.back().end(), [](const get_outs_entry &a, const get_outs_entry &b) { return std::get<0>(a) < std::get<0>(b); });
}
base += requested_outputs_count;
}
THROW_WALLET_EXCEPTION_IF(!scanty_outs.empty(), error::not_enough_outs_to_mix, scanty_outs, fake_outputs_count);
}
else
{
for (size_t idx: selected_transfers)
{
const transfer_details &td = m_transfers[idx];
std::vector<get_outs_entry> v;
const rct::key mask = td.is_rct() ? rct::commit(td.amount(), td.m_mask) : rct::zeroCommit(td.amount());
v.push_back(std::make_tuple(td.m_global_output_index, boost::get<txout_to_key>(td.m_tx.vout[td.m_internal_output_index].target).key, mask));
outs.push_back(v);
}
}
}
template<typename T>
void wallet2::transfer_selected(const std::vector<cryptonote::tx_destination_entry>& dsts, const std::list<size_t> selected_transfers, size_t fake_outputs_count,
std::vector<std::vector<tools::wallet2::get_outs_entry>> &outs,
uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra, T destination_split_strategy, const tx_dust_policy& dust_policy, cryptonote::transaction& tx, pending_tx &ptx)
{
using namespace cryptonote;
// throw if attempting a transaction with no destinations
THROW_WALLET_EXCEPTION_IF(dsts.empty(), error::zero_destination);
uint64_t upper_transaction_size_limit = get_upper_transaction_size_limit();
uint64_t needed_money = fee;
LOG_PRINT_L2("transfer: starting with fee " << print_money (needed_money));
// calculate total amount being sent to all destinations
// throw if total amount overflows uint64_t
for(auto& dt: dsts)
{
THROW_WALLET_EXCEPTION_IF(0 == dt.amount, error::zero_destination);
needed_money += dt.amount;
LOG_PRINT_L2("transfer: adding " << print_money(dt.amount) << ", for a total of " << print_money (needed_money));
THROW_WALLET_EXCEPTION_IF(needed_money < dt.amount, error::tx_sum_overflow, dsts, fee, m_testnet);
}
uint64_t found_money = 0;
for(size_t idx: selected_transfers)
{
found_money += m_transfers[idx].amount();
}
LOG_PRINT_L2("wanted " << print_money(needed_money) << ", found " << print_money(found_money) << ", fee " << print_money(fee));
THROW_WALLET_EXCEPTION_IF(found_money < needed_money, error::not_enough_money, found_money, needed_money - fee, fee);
if (outs.empty())
get_outs(outs, selected_transfers, fake_outputs_count); // may throw
//prepare inputs
LOG_PRINT_L2("preparing outputs");
typedef cryptonote::tx_source_entry::output_entry tx_output_entry;
size_t i = 0, out_index = 0;
std::vector<cryptonote::tx_source_entry> sources;
for(size_t idx: selected_transfers)
{
sources.resize(sources.size()+1);
cryptonote::tx_source_entry& src = sources.back();
const transfer_details& td = m_transfers[idx];
src.amount = td.amount();
src.rct = td.is_rct();
//paste keys (fake and real)
for (size_t n = 0; n < fake_outputs_count + 1; ++n)
{
tx_output_entry oe;
oe.first = std::get<0>(outs[out_index][n]);
oe.second.dest = rct::pk2rct(std::get<1>(outs[out_index][n]));
oe.second.mask = std::get<2>(outs[out_index][n]);
src.outputs.push_back(oe);
++i;
}
//paste real transaction to the random index
auto it_to_replace = std::find_if(src.outputs.begin(), src.outputs.end(), [&](const tx_output_entry& a)
{
return a.first == td.m_global_output_index;
});
THROW_WALLET_EXCEPTION_IF(it_to_replace == src.outputs.end(), error::wallet_internal_error,
"real output not found");
tx_output_entry real_oe;
real_oe.first = td.m_global_output_index;
real_oe.second.dest = rct::pk2rct(boost::get<txout_to_key>(td.m_tx.vout[td.m_internal_output_index].target).key);
real_oe.second.mask = rct::commit(td.amount(), td.m_mask);
*it_to_replace = real_oe;
src.real_out_tx_key = get_tx_pub_key_from_extra(td.m_tx, td.m_pk_index);
src.real_output = it_to_replace - src.outputs.begin();
src.real_output_in_tx_index = td.m_internal_output_index;
detail::print_source_entry(src);
++out_index;
}
LOG_PRINT_L2("outputs prepared");
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;
}
std::vector<cryptonote::tx_destination_entry> splitted_dsts, dust_dsts;
uint64_t dust = 0;
destination_split_strategy(dsts, change_dts, dust_policy.dust_threshold, splitted_dsts, dust_dsts);
for(auto& d: dust_dsts) {
THROW_WALLET_EXCEPTION_IF(dust_policy.dust_threshold < d.amount, error::wallet_internal_error, "invalid dust value: dust = " +
std::to_string(d.amount) + ", dust_threshold = " + std::to_string(dust_policy.dust_threshold));
}
for(auto& d: dust_dsts) {
if (!dust_policy.add_to_fee)
splitted_dsts.push_back(cryptonote::tx_destination_entry(d.amount, dust_policy.addr_for_dust));
dust += d.amount;
}
crypto::secret_key tx_key;
LOG_PRINT_L2("constructing tx");
bool r = cryptonote::construct_tx_and_get_tx_key(m_account.get_keys(), sources, splitted_dsts, extra, tx, unlock_time, tx_key);
LOG_PRINT_L2("constructed tx, r="<<r);
THROW_WALLET_EXCEPTION_IF(!r, error::tx_not_constructed, sources, splitted_dsts, unlock_time, m_testnet);
THROW_WALLET_EXCEPTION_IF(upper_transaction_size_limit <= get_object_blobsize(tx), error::tx_too_big, tx, upper_transaction_size_limit);
std::string key_images;
bool all_are_txin_to_key = std::all_of(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;
});
THROW_WALLET_EXCEPTION_IF(!all_are_txin_to_key, error::unexpected_txin_type, tx);
bool dust_sent_elsewhere = (dust_policy.addr_for_dust.m_view_public_key != change_dts.addr.m_view_public_key
|| dust_policy.addr_for_dust.m_spend_public_key != change_dts.addr.m_spend_public_key);
if (dust_policy.add_to_fee || dust_sent_elsewhere) change_dts.amount -= dust;
ptx.key_images = key_images;
ptx.fee = (dust_policy.add_to_fee ? fee+dust : fee);
ptx.dust = ((dust_policy.add_to_fee || dust_sent_elsewhere) ? dust : 0);
ptx.dust_added_to_fee = dust_policy.add_to_fee;
ptx.tx = tx;
ptx.change_dts = change_dts;
ptx.selected_transfers = selected_transfers;
ptx.tx_key = tx_key;
ptx.dests = dsts;
ptx.construction_data.sources = sources;
ptx.construction_data.change_dts = change_dts;
ptx.construction_data.splitted_dsts = splitted_dsts;
ptx.construction_data.selected_transfers = selected_transfers;
ptx.construction_data.extra = tx.extra;
ptx.construction_data.unlock_time = unlock_time;
ptx.construction_data.use_rct = false;
ptx.construction_data.dests = dsts;
LOG_PRINT_L2("transfer_selected done");
}
void wallet2::transfer_selected_rct(std::vector<cryptonote::tx_destination_entry> dsts, const std::list<size_t> selected_transfers, size_t fake_outputs_count,
std::vector<std::vector<tools::wallet2::get_outs_entry>> &outs,
uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra, cryptonote::transaction& tx, pending_tx &ptx)
{
using namespace cryptonote;
// throw if attempting a transaction with no destinations
THROW_WALLET_EXCEPTION_IF(dsts.empty(), error::zero_destination);
uint64_t upper_transaction_size_limit = get_upper_transaction_size_limit();
uint64_t needed_money = fee;
LOG_PRINT_L2("transfer_selected_rct: starting with fee " << print_money (needed_money));
LOG_PRINT_L0("selected transfers: ");
for (auto t: selected_transfers)
LOG_PRINT_L2(" " << t);
// calculate total amount being sent to all destinations
// throw if total amount overflows uint64_t
for(auto& dt: dsts)
{
THROW_WALLET_EXCEPTION_IF(0 == dt.amount, error::zero_destination);
needed_money += dt.amount;
LOG_PRINT_L2("transfer: adding " << print_money(dt.amount) << ", for a total of " << print_money (needed_money));
THROW_WALLET_EXCEPTION_IF(needed_money < dt.amount, error::tx_sum_overflow, dsts, fee, m_testnet);
}
uint64_t found_money = 0;
for(size_t idx: selected_transfers)
{
found_money += m_transfers[idx].amount();
}
LOG_PRINT_L2("wanted " << print_money(needed_money) << ", found " << print_money(found_money) << ", fee " << print_money(fee));
THROW_WALLET_EXCEPTION_IF(found_money < needed_money, error::not_enough_money, found_money, needed_money - fee, fee);
if (outs.empty())
get_outs(outs, selected_transfers, fake_outputs_count); // may throw
//prepare inputs
LOG_PRINT_L2("preparing outputs");
size_t i = 0, out_index = 0;
std::vector<cryptonote::tx_source_entry> sources;
for(size_t idx: selected_transfers)
{
sources.resize(sources.size()+1);
cryptonote::tx_source_entry& src = sources.back();
const transfer_details& td = m_transfers[idx];
src.amount = td.amount();
src.rct = td.is_rct();
//paste mixin transaction
typedef cryptonote::tx_source_entry::output_entry tx_output_entry;
for (size_t n = 0; n < fake_outputs_count + 1; ++n)
{
tx_output_entry oe;
oe.first = std::get<0>(outs[out_index][n]);
oe.second.dest = rct::pk2rct(std::get<1>(outs[out_index][n]));
oe.second.mask = std::get<2>(outs[out_index][n]);
src.outputs.push_back(oe);
}
++i;
//paste real transaction to the random index
auto it_to_replace = std::find_if(src.outputs.begin(), src.outputs.end(), [&](const tx_output_entry& a)
{
return a.first == td.m_global_output_index;
});
THROW_WALLET_EXCEPTION_IF(it_to_replace == src.outputs.end(), error::wallet_internal_error,
"real output not found");
tx_output_entry real_oe;
real_oe.first = td.m_global_output_index;
real_oe.second.dest = rct::pk2rct(boost::get<txout_to_key>(td.m_tx.vout[td.m_internal_output_index].target).key);
real_oe.second.mask = rct::commit(td.amount(), td.m_mask);
*it_to_replace = real_oe;
src.real_out_tx_key = get_tx_pub_key_from_extra(td.m_tx, td.m_pk_index);
src.real_output = it_to_replace - src.outputs.begin();
src.real_output_in_tx_index = td.m_internal_output_index;
src.mask = td.m_mask;
detail::print_source_entry(src);
++out_index;
}
LOG_PRINT_L2("outputs prepared");
// we still keep a copy, since we want to keep dsts free of change for user feedback purposes
std::vector<cryptonote::tx_destination_entry> splitted_dsts = dsts;
cryptonote::tx_destination_entry change_dts = AUTO_VAL_INIT(change_dts);
change_dts.amount = found_money - needed_money;
if (change_dts.amount == 0)
{
// If the change is 0, send it to a random address, to avoid confusing
// the sender with a 0 amount output. We send a 0 amount in order to avoid
// letting the destination be able to work out which of the inputs is the
// real one in our rings
LOG_PRINT_L2("generating dummy address for 0 change");
cryptonote::account_base dummy;
dummy.generate();
change_dts.addr = dummy.get_keys().m_account_address;
LOG_PRINT_L2("generated dummy address for 0 change");
}
else
{
change_dts.addr = m_account.get_keys().m_account_address;
}
splitted_dsts.push_back(change_dts);
crypto::secret_key tx_key;
LOG_PRINT_L2("constructing tx");
bool r = cryptonote::construct_tx_and_get_tx_key(m_account.get_keys(), sources, splitted_dsts, extra, tx, unlock_time, tx_key, true);
LOG_PRINT_L2("constructed tx, r="<<r);
THROW_WALLET_EXCEPTION_IF(!r, error::tx_not_constructed, sources, dsts, unlock_time, m_testnet);
THROW_WALLET_EXCEPTION_IF(upper_transaction_size_limit <= get_object_blobsize(tx), error::tx_too_big, tx, upper_transaction_size_limit);
LOG_PRINT_L2("gathering key images");
std::string key_images;
bool all_are_txin_to_key = std::all_of(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;
});
THROW_WALLET_EXCEPTION_IF(!all_are_txin_to_key, error::unexpected_txin_type, tx);
LOG_PRINT_L2("gathered key images");
ptx.key_images = key_images;
ptx.fee = fee;
ptx.dust = 0;
ptx.dust_added_to_fee = false;
ptx.tx = tx;
ptx.change_dts = change_dts;
ptx.selected_transfers = selected_transfers;
ptx.tx_key = tx_key;
ptx.dests = dsts;
ptx.construction_data.sources = sources;
ptx.construction_data.change_dts = change_dts;
ptx.construction_data.splitted_dsts = splitted_dsts;
ptx.construction_data.selected_transfers = selected_transfers;
ptx.construction_data.extra = tx.extra;
ptx.construction_data.unlock_time = unlock_time;
ptx.construction_data.use_rct = true;
ptx.construction_data.dests = dsts;
LOG_PRINT_L2("transfer_selected_rct done");
}
static size_t estimate_rct_tx_size(int n_inputs, int mixin, int n_outputs)
{
size_t size = 0;
// tx prefix
// first few bytes
size += 1 + 6;
// vin
size += n_inputs * (1+6+(mixin+1)*2+32);
// vout
size += n_outputs * (6+32);
// extra
size += 40;
// rct signatures
// type
size += 1;
// rangeSigs
size += (2*64*32+32+64*32) * n_outputs;
// MGs
size += n_inputs * (32 * (mixin+1) + 32);
// mixRing - not serialized, can be reconstructed
/* size += 2 * 32 * (mixin+1) * n_inputs; */
// pseudoOuts
size += 32 * n_inputs;
// ecdhInfo
size += 2 * 32 * n_outputs;
// outPk - only commitment is saved
size += 32 * n_outputs;
// txnFee
size += 4;
LOG_PRINT_L2("estimated rct tx size for " << n_inputs << " at mixin " << mixin << " and " << n_outputs << ": " << size << " (" << ((32 * n_inputs/*+1*/) + 2 * 32 * (mixin+1) * n_inputs + 32 * n_outputs) << " saved)");
return size;
}
static size_t estimate_tx_size(bool use_rct, int n_inputs, int mixin, int n_outputs)
{
if (use_rct)
return estimate_rct_tx_size(n_inputs, mixin, n_outputs + 1);
else
return n_inputs * (mixin+1) * APPROXIMATE_INPUT_BYTES;
}
std::vector<size_t> wallet2::pick_preferred_rct_inputs(uint64_t needed_money) const
{
std::vector<size_t> picks;
float current_output_relatdness = 1.0f;
LOG_PRINT_L2("pick_preferred_rct_inputs: needed_money " << print_money(needed_money));
// try to find a rct input of enough size
for (size_t i = 0; i < m_transfers.size(); ++i)
{
const transfer_details& td = m_transfers[i];
if (!td.m_spent && td.is_rct() && td.amount() >= needed_money && is_transfer_unlocked(td))
{
LOG_PRINT_L2("We can use " << i << " alone: " << print_money(td.amount()));
picks.push_back(i);
return picks;
}
}
// then try to find two outputs
// this could be made better by picking one of the outputs to be a small one, since those
// are less useful since often below the needed money, so if one can be used in a pair,
// it gets rid of it for the future
for (size_t i = 0; i < m_transfers.size(); ++i)
{
const transfer_details& td = m_transfers[i];
if (!td.m_spent && td.is_rct() && is_transfer_unlocked(td))
{
LOG_PRINT_L2("Considering input " << i << ", " << print_money(td.amount()));
for (size_t j = i + 1; j < m_transfers.size(); ++j)
{
const transfer_details& td2 = m_transfers[j];
if (!td2.m_spent && td2.is_rct() && td.amount() + td2.amount() >= needed_money && is_transfer_unlocked(td2))
{
// update our picks if those outputs are less related than any we
// already found. If the same, don't update, and oldest suitable outputs
// will be used in preference.
float relatedness = get_output_relatedness(td, td2);
LOG_PRINT_L2(" with input " << j << ", " << print_money(td2.amount()) << ", relatedness " << relatedness);
if (relatedness < current_output_relatdness)
{
// reset the current picks with those, and return them directly
// if they're unrelated. If they are related, we'll end up returning
// them if we find nothing better
picks.clear();
picks.push_back(i);
picks.push_back(j);
LOG_PRINT_L0("we could use " << i << " and " << j);
if (relatedness == 0.0f)
return picks;
current_output_relatdness = relatedness;
}
}
}
}
}
return picks;
}
bool wallet2::should_pick_a_second_output(bool use_rct, size_t n_transfers, const std::vector<size_t> &unused_transfers_indices, const std::vector<size_t> &unused_dust_indices) const
{
if (!use_rct)
return false;
if (n_transfers > 1)
return false;
if (unused_dust_indices.empty() && unused_transfers_indices.empty())
return false;
// we want at least one free rct output to avoid a corner case where
// we'd choose a non rct output which doesn't have enough "siblings"
// value-wise on the chain, and thus can't be mixed
bool found = false;
for (auto i: unused_dust_indices)
{
if (m_transfers[i].is_rct())
{
found = true;
break;
}
}
if (!found) for (auto i: unused_transfers_indices)
{
if (m_transfers[i].is_rct())
{
found = true;
break;
}
}
if (!found)
return false;
return true;
}
std::vector<size_t> wallet2::get_only_rct(const std::vector<size_t> &unused_dust_indices, const std::vector<size_t> &unused_transfers_indices) const
{
std::vector<size_t> indices;
for (size_t n: unused_dust_indices)
if (m_transfers[n].is_rct())
indices.push_back(n);
for (size_t n: unused_transfers_indices)
if (m_transfers[n].is_rct())
indices.push_back(n);
return indices;
}
static uint32_t get_count_above(const std::vector<wallet2::transfer_details> &transfers, const std::vector<size_t> &indices, uint64_t threshold)
{
uint32_t count = 0;
for (size_t idx: indices)
if (transfers[idx].amount() >= threshold)
++count;
return count;
}
// Another implementation of transaction creation that is hopefully better
// While there is anything left to pay, it goes through random outputs and tries
// to fill the next destination/amount. If it fully fills it, it will use the
// remainder to try to fill the next one as well.
// The tx size if roughly estimated as a linear function of only inputs, and a
// new tx will be created when that size goes above a given fraction of the
// max tx size. At that point, more outputs may be added if the fee cannot be
// satisfied.
// If the next output in the next tx would go to the same destination (ie, we
// cut off at a tx boundary in the middle of paying a given destination), the
// fee will be carved out of the current input if possible, to avoid having to
// add another output just for the fee and getting change.
// This system allows for sending (almost) the entire balance, since it does
// not generate spurious change in all txes, thus decreasing the instantaneous
// usable balance.
std::vector<wallet2::pending_tx> wallet2::create_transactions_2(std::vector<cryptonote::tx_destination_entry> dsts, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t> extra, bool trusted_daemon)
{
std::vector<size_t> unused_transfers_indices;
std::vector<size_t> unused_dust_indices;
uint64_t needed_money;
uint64_t accumulated_fee, accumulated_outputs, accumulated_change;
struct TX {
std::list<size_t> selected_transfers;
std::vector<cryptonote::tx_destination_entry> dsts;
cryptonote::transaction tx;
pending_tx ptx;
size_t bytes;
void add(const account_public_address &addr, uint64_t amount, unsigned int original_output_index, bool merge_destinations) {
if (merge_destinations)
{
std::vector<cryptonote::tx_destination_entry>::iterator i;
i = std::find_if(dsts.begin(), dsts.end(), [&](const cryptonote::tx_destination_entry &d) { return !memcmp (&d.addr, &addr, sizeof(addr)); });
if (i == dsts.end())
{
dsts.push_back(tx_destination_entry(0,addr));
i = dsts.end() - 1;
}
i->amount += amount;
}
else
{
THROW_WALLET_EXCEPTION_IF(original_output_index > dsts.size(), error::wallet_internal_error, "original_output_index too large");
if (original_output_index == dsts.size())
dsts.push_back(tx_destination_entry(0,addr));
THROW_WALLET_EXCEPTION_IF(memcmp(&dsts[original_output_index].addr, &addr, sizeof(addr)), error::wallet_internal_error, "Mismatched destination address");
dsts[original_output_index].amount += amount;
}
}
};
std::vector<TX> txes;
bool adding_fee; // true if new outputs go towards fee, rather than destinations
uint64_t needed_fee, available_for_fee = 0;
uint64_t upper_transaction_size_limit = get_upper_transaction_size_limit();
const bool use_rct = use_fork_rules(4, 0);
const uint64_t fee_per_kb = get_per_kb_fee();
const uint64_t fee_multiplier = get_fee_multiplier(priority, get_fee_algorithm());
// throw if attempting a transaction with no destinations
THROW_WALLET_EXCEPTION_IF(dsts.empty(), error::zero_destination);
// calculate total amount being sent to all destinations
// throw if total amount overflows uint64_t
needed_money = 0;
for(auto& dt: dsts)
{
THROW_WALLET_EXCEPTION_IF(0 == dt.amount, error::zero_destination);
needed_money += dt.amount;
LOG_PRINT_L2("transfer: adding " << print_money(dt.amount) << ", for a total of " << print_money (needed_money));
THROW_WALLET_EXCEPTION_IF(needed_money < dt.amount, error::tx_sum_overflow, dsts, 0, m_testnet);
}
// throw if attempting a transaction with no money
THROW_WALLET_EXCEPTION_IF(needed_money == 0, error::zero_destination);
// gather all our dust and non dust outputs
for (size_t i = 0; i < m_transfers.size(); ++i)
{
const transfer_details& td = m_transfers[i];
if (!td.m_spent && (use_rct ? true : !td.is_rct()) && is_transfer_unlocked(td))
{
if ((td.is_rct()) || is_valid_decomposed_amount(td.amount()))
unused_transfers_indices.push_back(i);
else
unused_dust_indices.push_back(i);
}
}
LOG_PRINT_L2("Starting with " << unused_transfers_indices.size() << " non-dust outputs and " << unused_dust_indices.size() << " dust outputs");
// early out if we know we can't make it anyway
// we could also check for being within FEE_PER_KB, but if the fee calculation
// ever changes, this might be missed, so let this go through
THROW_WALLET_EXCEPTION_IF(needed_money > unlocked_balance(), error::not_enough_money,
unlocked_balance(), needed_money, 0);
if (unused_dust_indices.empty() && unused_transfers_indices.empty())
return std::vector<wallet2::pending_tx>();
// start with an empty tx
txes.push_back(TX());
accumulated_fee = 0;
accumulated_outputs = 0;
accumulated_change = 0;
adding_fee = false;
needed_fee = 0;
std::vector<std::vector<tools::wallet2::get_outs_entry>> outs;
// for rct, since we don't see the amounts, we will try to make all transactions
// look the same, with 1 or 2 inputs, and 2 outputs. One input is preferable, as
// this prevents linking to another by provenance analysis, but two is ok if we
// try to pick outputs not from the same block. We will get two outputs, one for
// the destination, and one for change.
LOG_PRINT_L2("checking preferred");
std::vector<size_t> prefered_inputs;
uint64_t rct_outs_needed = 2 * (fake_outs_count + 1);
rct_outs_needed += 100; // some fudge factor since we don't know how many are locked
if (use_rct && get_num_rct_outputs() >= rct_outs_needed)
{
// this is used to build a tx that's 1 or 2 inputs, and 2 outputs, which
// will get us a known fee.
uint64_t estimated_fee = calculate_fee(fee_per_kb, estimate_rct_tx_size(2, fake_outs_count + 1, 2), fee_multiplier);
prefered_inputs = pick_preferred_rct_inputs(needed_money + estimated_fee);
if (!prefered_inputs.empty())
{
string s;
for (auto i: prefered_inputs) s += boost::lexical_cast<std::string>(i) + "(" + print_money(m_transfers[i].amount()) + ") ";
LOG_PRINT_L1("Found prefered rct inputs for rct tx: " << s);
}
}
LOG_PRINT_L2("done checking preferred");
// while:
// - we have something to send
// - or we need to gather more fee
// - or we have just one input in that tx, which is rct (to try and make all/most rct txes 2/2)
unsigned int original_output_index = 0;
while ((!dsts.empty() && dsts[0].amount > 0) || adding_fee || should_pick_a_second_output(use_rct, txes.back().selected_transfers.size(), unused_transfers_indices, unused_dust_indices)) {
TX &tx = txes.back();
LOG_PRINT_L2("Start of loop with " << unused_transfers_indices.size() << " " << unused_dust_indices.size());
LOG_PRINT_L2("unused_transfers_indices:");
for (auto t: unused_transfers_indices)
LOG_PRINT_L2(" " << t);
LOG_PRINT_L2("unused_dust_indices:");
for (auto t: unused_dust_indices)
LOG_PRINT_L2(" " << t);
LOG_PRINT_L2("dsts size " << dsts.size() << ", first " << (dsts.empty() ? -1 : dsts[0].amount));
LOG_PRINT_L2("adding_fee " << adding_fee << ", use_rct " << use_rct);
// if we need to spend money and don't have any left, we fail
if (unused_dust_indices.empty() && unused_transfers_indices.empty()) {
LOG_PRINT_L2("No more outputs to choose from");
THROW_WALLET_EXCEPTION_IF(1, error::tx_not_possible, unlocked_balance(), needed_money, accumulated_fee + needed_fee);
}
// get a random unspent output and use it to pay part (or all) of the current destination (and maybe next one, etc)
// This could be more clever, but maybe at the cost of making probabilistic inferences easier
size_t idx;
if ((dsts.empty() || dsts[0].amount == 0) && !adding_fee) {
// the "make rct txes 2/2" case - we pick a small value output to "clean up" the wallet too
std::vector<size_t> indices = get_only_rct(unused_dust_indices, unused_transfers_indices);
idx = pop_best_value(indices, tx.selected_transfers, true);
// we might not want to add it if it's a large output and we don't have many left
if (m_transfers[idx].amount() >= m_min_output_value) {
if (get_count_above(m_transfers, unused_transfers_indices, m_min_output_value) < m_min_output_count) {
LOG_PRINT_L2("Second output was not strictly needed, and we're running out of outputs above " << print_money(m_min_output_value) << ", not adding");
break;
}
}
// since we're trying to add a second output which is not strictly needed,
// we only add it if it's unrelated enough to the first one
float relatedness = get_output_relatedness(m_transfers[idx], m_transfers[tx.selected_transfers.front()]);
if (relatedness > SECOND_OUTPUT_RELATEDNESS_THRESHOLD)
{
LOG_PRINT_L2("Second output was not strictly needed, and relatedness " << relatedness << ", not adding");
break;
}
pop_if_present(unused_transfers_indices, idx);
pop_if_present(unused_dust_indices, idx);
} else if (!prefered_inputs.empty()) {
idx = pop_back(prefered_inputs);
pop_if_present(unused_transfers_indices, idx);
pop_if_present(unused_dust_indices, idx);
} else
idx = pop_best_value(unused_transfers_indices.empty() ? unused_dust_indices : unused_transfers_indices, tx.selected_transfers);
const transfer_details &td = m_transfers[idx];
LOG_PRINT_L2("Picking output " << idx << ", amount " << print_money(td.amount()) << ", ki " << td.m_key_image);
// add this output to the list to spend
tx.selected_transfers.push_back(idx);
uint64_t available_amount = td.amount();
accumulated_outputs += available_amount;
// clear any fake outs we'd already gathered, since we'll need a new set
outs.clear();
if (adding_fee)
{
LOG_PRINT_L2("We need more fee, adding it to fee");
available_for_fee += available_amount;
}
else
{
while (!dsts.empty() && dsts[0].amount <= available_amount && estimate_tx_size(use_rct, tx.selected_transfers.size(), fake_outs_count, tx.dsts.size()) < TX_SIZE_TARGET(upper_transaction_size_limit))
{
// we can fully pay that destination
LOG_PRINT_L2("We can fully pay " << get_account_address_as_str(m_testnet, dsts[0].addr) <<
" for " << print_money(dsts[0].amount));
tx.add(dsts[0].addr, dsts[0].amount, original_output_index, m_merge_destinations);
available_amount -= dsts[0].amount;
dsts[0].amount = 0;
pop_index(dsts, 0);
++original_output_index;
}
if (available_amount > 0 && !dsts.empty() && estimate_tx_size(use_rct, tx.selected_transfers.size(), fake_outs_count, tx.dsts.size()) < TX_SIZE_TARGET(upper_transaction_size_limit)) {
// we can partially fill that destination
LOG_PRINT_L2("We can partially pay " << get_account_address_as_str(m_testnet, dsts[0].addr) <<
" for " << print_money(available_amount) << "/" << print_money(dsts[0].amount));
tx.add(dsts[0].addr, available_amount, original_output_index, m_merge_destinations);
dsts[0].amount -= available_amount;
available_amount = 0;
}
}
// here, check if we need to sent tx and start a new one
LOG_PRINT_L2("Considering whether to create a tx now, " << tx.selected_transfers.size() << " inputs, tx limit "
<< upper_transaction_size_limit);
bool try_tx;
if (adding_fee)
{
/* might not actually be enough if adding this output bumps size to next kB, but we need to try */
try_tx = available_for_fee >= needed_fee;
}
else
{
const size_t estimated_rct_tx_size = estimate_tx_size(use_rct, tx.selected_transfers.size(), fake_outs_count, tx.dsts.size());
try_tx = dsts.empty() || (estimated_rct_tx_size >= TX_SIZE_TARGET(upper_transaction_size_limit));
}
if (try_tx) {
cryptonote::transaction test_tx;
pending_tx test_ptx;
needed_fee = 0;
LOG_PRINT_L2("Trying to create a tx now, with " << tx.dsts.size() << " destinations and " <<
tx.selected_transfers.size() << " outputs");
if (use_rct)
transfer_selected_rct(tx.dsts, tx.selected_transfers, fake_outs_count, outs, unlock_time, needed_fee, extra,
test_tx, test_ptx);
else
transfer_selected(tx.dsts, tx.selected_transfers, fake_outs_count, outs, unlock_time, needed_fee, extra,
detail::digit_split_strategy, tx_dust_policy(::config::DEFAULT_DUST_THRESHOLD), test_tx, test_ptx);
auto txBlob = t_serializable_object_to_blob(test_ptx.tx);
needed_fee = calculate_fee(fee_per_kb, txBlob, fee_multiplier);
available_for_fee = test_ptx.fee + test_ptx.change_dts.amount + (!test_ptx.dust_added_to_fee ? test_ptx.dust : 0);
LOG_PRINT_L2("Made a " << ((txBlob.size() + 1023) / 1024) << " kB tx, with " << print_money(available_for_fee) << " available for fee (" <<
print_money(needed_fee) << " needed)");
if (needed_fee > available_for_fee && dsts[0].amount > 0)
{
// we don't have enough for the fee, but we've only partially paid the current address,
// so we can take the fee from the paid amount, since we'll have to make another tx anyway
std::vector<cryptonote::tx_destination_entry>::iterator i;
i = std::find_if(tx.dsts.begin(), tx.dsts.end(),
[&](const cryptonote::tx_destination_entry &d) { return !memcmp (&d.addr, &dsts[0].addr, sizeof(dsts[0].addr)); });
THROW_WALLET_EXCEPTION_IF(i == tx.dsts.end(), error::wallet_internal_error, "paid address not found in outputs");
if (i->amount > needed_fee)
{
uint64_t new_paid_amount = i->amount /*+ test_ptx.fee*/ - needed_fee;
LOG_PRINT_L2("Adjusting amount paid to " << get_account_address_as_str(m_testnet, i->addr) << " from " <<
print_money(i->amount) << " to " << print_money(new_paid_amount) << " to accomodate " <<
print_money(needed_fee) << " fee");
dsts[0].amount += i->amount - new_paid_amount;
i->amount = new_paid_amount;
test_ptx.fee = needed_fee;
available_for_fee = needed_fee;
}
}
if (needed_fee > available_for_fee)
{
LOG_PRINT_L2("We could not make a tx, switching to fee accumulation");
adding_fee = true;
}
else
{
LOG_PRINT_L2("We made a tx, adjusting fee and saving it");
do {
if (use_rct)
transfer_selected_rct(tx.dsts, tx.selected_transfers, fake_outs_count, outs, unlock_time, needed_fee, extra,
test_tx, test_ptx);
else
transfer_selected(tx.dsts, tx.selected_transfers, fake_outs_count, outs, unlock_time, needed_fee, extra,
detail::digit_split_strategy, tx_dust_policy(::config::DEFAULT_DUST_THRESHOLD), test_tx, test_ptx);
txBlob = t_serializable_object_to_blob(test_ptx.tx);
needed_fee = calculate_fee(fee_per_kb, txBlob, fee_multiplier);
LOG_PRINT_L2("Made an attempt at a final " << ((txBlob.size() + 1023)/1024) << " kB tx, with " << print_money(test_ptx.fee) <<
" fee and " << print_money(test_ptx.change_dts.amount) << " change");
} while (needed_fee > test_ptx.fee);
LOG_PRINT_L2("Made a final " << ((txBlob.size() + 1023)/1024) << " kB tx, with " << print_money(test_ptx.fee) <<
" fee and " << print_money(test_ptx.change_dts.amount) << " change");
tx.tx = test_tx;
tx.ptx = test_ptx;
tx.bytes = txBlob.size();
accumulated_fee += test_ptx.fee;
accumulated_change += test_ptx.change_dts.amount;
adding_fee = false;
if (!dsts.empty())
{
LOG_PRINT_L2("We have more to pay, starting another tx");
txes.push_back(TX());
}
}
}
}
if (adding_fee)
{
LOG_PRINT_L1("We ran out of outputs while trying to gather final fee");
THROW_WALLET_EXCEPTION_IF(1, error::tx_not_possible, unlocked_balance(), needed_money, accumulated_fee + needed_fee);
}
LOG_PRINT_L1("Done creating " << txes.size() << " transactions, " << print_money(accumulated_fee) <<
" total fee, " << print_money(accumulated_change) << " total change");
std::vector<wallet2::pending_tx> ptx_vector;
for (std::vector<TX>::iterator i = txes.begin(); i != txes.end(); ++i)
{
TX &tx = *i;
uint64_t tx_money = 0;
for (size_t idx: tx.selected_transfers)
tx_money += m_transfers[idx].amount();
LOG_PRINT_L1(" Transaction " << (1+std::distance(txes.begin(), i)) << "/" << txes.size() <<
": " << (tx.bytes+1023)/1024 << " kB, sending " << print_money(tx_money) << " in " << tx.selected_transfers.size() <<
" outputs to " << tx.dsts.size() << " destination(s), including " <<
print_money(tx.ptx.fee) << " fee, " << print_money(tx.ptx.change_dts.amount) << " change");
ptx_vector.push_back(tx.ptx);
}
// if we made it this far, we're OK to actually send the transactions
return ptx_vector;
}
std::vector<wallet2::pending_tx> wallet2::create_transactions_all(uint64_t below, const cryptonote::account_public_address &address, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t> extra, bool trusted_daemon)
{
std::vector<size_t> unused_transfers_indices;
std::vector<size_t> unused_dust_indices;
const bool use_rct = use_fork_rules(4, 0);
// gather all our dust and non dust outputs
for (size_t i = 0; i < m_transfers.size(); ++i)
{
const transfer_details& td = m_transfers[i];
if (!td.m_spent && (use_rct ? true : !td.is_rct()) && is_transfer_unlocked(td))
{
if (below == 0 || td.amount() < below)
{
if (td.is_rct() || is_valid_decomposed_amount(td.amount()))
unused_transfers_indices.push_back(i);
else
unused_dust_indices.push_back(i);
}
}
}
return create_transactions_from(address, unused_transfers_indices, unused_dust_indices, fake_outs_count, unlock_time, priority, extra, trusted_daemon);
}
std::vector<wallet2::pending_tx> wallet2::create_transactions_from(const cryptonote::account_public_address &address, std::vector<size_t> unused_transfers_indices, std::vector<size_t> unused_dust_indices, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t> extra, bool trusted_daemon)
{
uint64_t accumulated_fee, accumulated_outputs, accumulated_change;
struct TX {
std::list<size_t> selected_transfers;
std::vector<cryptonote::tx_destination_entry> dsts;
cryptonote::transaction tx;
pending_tx ptx;
size_t bytes;
};
std::vector<TX> txes;
uint64_t needed_fee, available_for_fee = 0;
uint64_t upper_transaction_size_limit = get_upper_transaction_size_limit();
std::vector<std::vector<get_outs_entry>> outs;
const bool use_rct = fake_outs_count > 0 && use_fork_rules(4, 0);
const uint64_t fee_per_kb = get_per_kb_fee();
const uint64_t fee_multiplier = get_fee_multiplier(priority, get_fee_algorithm());
LOG_PRINT_L2("Starting with " << unused_transfers_indices.size() << " non-dust outputs and " << unused_dust_indices.size() << " dust outputs");
if (unused_dust_indices.empty() && unused_transfers_indices.empty())
return std::vector<wallet2::pending_tx>();
// start with an empty tx
txes.push_back(TX());
accumulated_fee = 0;
accumulated_outputs = 0;
accumulated_change = 0;
needed_fee = 0;
// while we have something to send
while (!unused_dust_indices.empty() || !unused_transfers_indices.empty()) {
TX &tx = txes.back();
// get a random unspent output and use it to pay next chunk. We try to alternate
// dust and non dust to ensure we never get with only dust, from which we might
// get a tx that can't pay for itself
size_t idx = unused_transfers_indices.empty() ? pop_best_value(unused_dust_indices, tx.selected_transfers) : unused_dust_indices.empty() ? pop_best_value(unused_transfers_indices, tx.selected_transfers) : ((tx.selected_transfers.size() & 1) || accumulated_outputs > fee_per_kb * fee_multiplier * (upper_transaction_size_limit + 1023) / 1024) ? pop_best_value(unused_dust_indices, tx.selected_transfers) : pop_best_value(unused_transfers_indices, tx.selected_transfers);
const transfer_details &td = m_transfers[idx];
LOG_PRINT_L2("Picking output " << idx << ", amount " << print_money(td.amount()));
// add this output to the list to spend
tx.selected_transfers.push_back(idx);
uint64_t available_amount = td.amount();
accumulated_outputs += available_amount;
// clear any fake outs we'd already gathered, since we'll need a new set
outs.clear();
// here, check if we need to sent tx and start a new one
LOG_PRINT_L2("Considering whether to create a tx now, " << tx.selected_transfers.size() << " inputs, tx limit "
<< upper_transaction_size_limit);
const size_t estimated_rct_tx_size = estimate_tx_size(use_rct, tx.selected_transfers.size(), fake_outs_count, tx.dsts.size() + 1);
bool try_tx = (unused_dust_indices.empty() && unused_transfers_indices.empty()) || ( estimated_rct_tx_size >= TX_SIZE_TARGET(upper_transaction_size_limit));
if (try_tx) {
cryptonote::transaction test_tx;
pending_tx test_ptx;
needed_fee = 0;
tx.dsts.push_back(tx_destination_entry(1, address));
LOG_PRINT_L2("Trying to create a tx now, with " << tx.dsts.size() << " destinations and " <<
tx.selected_transfers.size() << " outputs");
if (use_rct)
transfer_selected_rct(tx.dsts, tx.selected_transfers, fake_outs_count, outs, unlock_time, needed_fee, extra,
test_tx, test_ptx);
else
transfer_selected(tx.dsts, tx.selected_transfers, fake_outs_count, outs, unlock_time, needed_fee, extra,
detail::digit_split_strategy, tx_dust_policy(::config::DEFAULT_DUST_THRESHOLD), test_tx, test_ptx);
auto txBlob = t_serializable_object_to_blob(test_ptx.tx);
needed_fee = calculate_fee(fee_per_kb, txBlob, fee_multiplier);
available_for_fee = test_ptx.fee + test_ptx.dests[0].amount + test_ptx.change_dts.amount;
LOG_PRINT_L2("Made a " << ((txBlob.size() + 1023) / 1024) << " kB tx, with " << print_money(available_for_fee) << " available for fee (" <<
print_money(needed_fee) << " needed)");
THROW_WALLET_EXCEPTION_IF(needed_fee > available_for_fee, error::wallet_internal_error, "Transaction cannot pay for itself");
do {
LOG_PRINT_L2("We made a tx, adjusting fee and saving it");
tx.dsts[0].amount = available_for_fee - needed_fee;
if (use_rct)
transfer_selected_rct(tx.dsts, tx.selected_transfers, fake_outs_count, outs, unlock_time, needed_fee, extra,
test_tx, test_ptx);
else
transfer_selected(tx.dsts, tx.selected_transfers, fake_outs_count, outs, unlock_time, needed_fee, extra,
detail::digit_split_strategy, tx_dust_policy(::config::DEFAULT_DUST_THRESHOLD), test_tx, test_ptx);
txBlob = t_serializable_object_to_blob(test_ptx.tx);
needed_fee = calculate_fee(fee_per_kb, txBlob, fee_multiplier);
LOG_PRINT_L2("Made an attempt at a final " << ((txBlob.size() + 1023)/1024) << " kB tx, with " << print_money(test_ptx.fee) <<
" fee and " << print_money(test_ptx.change_dts.amount) << " change");
} while (needed_fee > test_ptx.fee);
LOG_PRINT_L2("Made a final " << ((txBlob.size() + 1023)/1024) << " kB tx, with " << print_money(test_ptx.fee) <<
" fee and " << print_money(test_ptx.change_dts.amount) << " change");
tx.tx = test_tx;
tx.ptx = test_ptx;
tx.bytes = txBlob.size();
accumulated_fee += test_ptx.fee;
accumulated_change += test_ptx.change_dts.amount;
if (!unused_transfers_indices.empty() || !unused_dust_indices.empty())
{
LOG_PRINT_L2("We have more to pay, starting another tx");
txes.push_back(TX());
}
}
}
LOG_PRINT_L1("Done creating " << txes.size() << " transactions, " << print_money(accumulated_fee) <<
" total fee, " << print_money(accumulated_change) << " total change");
std::vector<wallet2::pending_tx> ptx_vector;
for (std::vector<TX>::iterator i = txes.begin(); i != txes.end(); ++i)
{
TX &tx = *i;
uint64_t tx_money = 0;
for (size_t idx: tx.selected_transfers)
tx_money += m_transfers[idx].amount();
LOG_PRINT_L1(" Transaction " << (1+std::distance(txes.begin(), i)) << "/" << txes.size() <<
": " << (tx.bytes+1023)/1024 << " kB, sending " << print_money(tx_money) << " in " << tx.selected_transfers.size() <<
" outputs to " << tx.dsts.size() << " destination(s), including " <<
print_money(tx.ptx.fee) << " fee, " << print_money(tx.ptx.change_dts.amount) << " change");
ptx_vector.push_back(tx.ptx);
}
// if we made it this far, we're OK to actually send the transactions
return ptx_vector;
}
uint64_t wallet2::unlocked_dust_balance(const tx_dust_policy &dust_policy) const
{
uint64_t money = 0;
std::list<transfer_container::iterator> selected_transfers;
for (transfer_container::const_iterator i = m_transfers.begin(); i != m_transfers.end(); ++i)
{
const transfer_details& td = *i;
if (!td.m_spent && td.amount() < dust_policy.dust_threshold && is_transfer_unlocked(td))
{
money += td.amount();
}
}
return money;
}
//----------------------------------------------------------------------------------------------------
void wallet2::get_hard_fork_info(uint8_t version, uint64_t &earliest_height)
{
boost::optional<std::string> result = m_node_rpc_proxy.get_earliest_height(version, earliest_height);
throw_on_rpc_response_error(result, "get_hard_fork_info");
}
//----------------------------------------------------------------------------------------------------
bool wallet2::use_fork_rules(uint8_t version, int64_t early_blocks)
{
uint64_t height, earliest_height;
boost::optional<std::string> result = m_node_rpc_proxy.get_height(height);
throw_on_rpc_response_error(result, "get_info");
result = m_node_rpc_proxy.get_earliest_height(version, earliest_height);
throw_on_rpc_response_error(result, "get_hard_fork_info");
bool close_enough = height >= earliest_height - early_blocks; // start using the rules that many blocks beforehand
if (close_enough)
LOG_PRINT_L2("Using v" << (unsigned)version << " rules");
else
LOG_PRINT_L2("Not using v" << (unsigned)version << " rules");
return close_enough;
}
//----------------------------------------------------------------------------------------------------
uint64_t wallet2::get_upper_transaction_size_limit()
{
if (m_upper_transaction_size_limit > 0)
return m_upper_transaction_size_limit;
uint64_t full_reward_zone = use_fork_rules(5, 10) ? CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5 : use_fork_rules(2, 10) ? CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 : CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1;
return full_reward_zone - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE;
}
//----------------------------------------------------------------------------------------------------
std::vector<size_t> wallet2::select_available_outputs(const std::function<bool(const transfer_details &td)> &f)
{
std::vector<size_t> outputs;
size_t n = 0;
for (transfer_container::const_iterator i = m_transfers.begin(); i != m_transfers.end(); ++i, ++n)
{
if (i->m_spent)
continue;
if (!is_transfer_unlocked(*i))
continue;
if (f(*i))
outputs.push_back(n);
}
return outputs;
}
//----------------------------------------------------------------------------------------------------
std::vector<uint64_t> wallet2::get_unspent_amounts_vector()
{
std::set<uint64_t> set;
for (const auto &td: m_transfers)
{
if (!td.m_spent)
set.insert(td.is_rct() ? 0 : td.amount());
}
std::vector<uint64_t> vector;
vector.reserve(set.size());
for (const auto &i: set)
{
vector.push_back(i);
}
return vector;
}
//----------------------------------------------------------------------------------------------------
std::vector<size_t> wallet2::select_available_outputs_from_histogram(uint64_t count, bool atleast, bool unlocked, bool allow_rct, bool trusted_daemon)
{
epee::json_rpc::request<cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::request> req_t = AUTO_VAL_INIT(req_t);
epee::json_rpc::response<cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::response, std::string> resp_t = AUTO_VAL_INIT(resp_t);
m_daemon_rpc_mutex.lock();
req_t.jsonrpc = "2.0";
req_t.id = epee::serialization::storage_entry(0);
req_t.method = "get_output_histogram";
if (trusted_daemon)
req_t.params.amounts = get_unspent_amounts_vector();
req_t.params.min_count = count;
req_t.params.max_count = 0;
req_t.params.unlocked = unlocked;
bool r = net_utils::invoke_http_json("/json_rpc", req_t, resp_t, m_http_client, rpc_timeout);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "select_available_outputs_from_histogram");
THROW_WALLET_EXCEPTION_IF(resp_t.result.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "get_output_histogram");
THROW_WALLET_EXCEPTION_IF(resp_t.result.status != CORE_RPC_STATUS_OK, error::get_histogram_error, resp_t.result.status);
std::set<uint64_t> mixable;
for (const auto &i: resp_t.result.histogram)
{
mixable.insert(i.amount);
}
return select_available_outputs([mixable, atleast, allow_rct](const transfer_details &td) {
if (!allow_rct && td.is_rct())
return false;
const uint64_t amount = td.is_rct() ? 0 : td.amount();
if (atleast) {
if (mixable.find(amount) != mixable.end())
return true;
}
else {
if (mixable.find(amount) == mixable.end())
return true;
}
return false;
});
}
//----------------------------------------------------------------------------------------------------
uint64_t wallet2::get_num_rct_outputs()
{
epee::json_rpc::request<cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::request> req_t = AUTO_VAL_INIT(req_t);
epee::json_rpc::response<cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::response, std::string> resp_t = AUTO_VAL_INIT(resp_t);
m_daemon_rpc_mutex.lock();
req_t.jsonrpc = "2.0";
req_t.id = epee::serialization::storage_entry(0);
req_t.method = "get_output_histogram";
req_t.params.amounts.push_back(0);
req_t.params.min_count = 0;
req_t.params.max_count = 0;
bool r = net_utils::invoke_http_json("/json_rpc", req_t, resp_t, m_http_client, rpc_timeout);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "get_num_rct_outputs");
THROW_WALLET_EXCEPTION_IF(resp_t.result.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "get_output_histogram");
THROW_WALLET_EXCEPTION_IF(resp_t.result.status != CORE_RPC_STATUS_OK, error::get_histogram_error, resp_t.result.status);
THROW_WALLET_EXCEPTION_IF(resp_t.result.histogram.size() != 1, error::get_histogram_error, "Expected exactly one response");
THROW_WALLET_EXCEPTION_IF(resp_t.result.histogram[0].amount != 0, error::get_histogram_error, "Expected 0 amount");
return resp_t.result.histogram[0].total_instances;
}
//----------------------------------------------------------------------------------------------------
const wallet2::transfer_details &wallet2::get_transfer_details(size_t idx) const
{
THROW_WALLET_EXCEPTION_IF(idx >= m_transfers.size(), error::wallet_internal_error, "Bad transfer index");
return m_transfers[idx];
}
//----------------------------------------------------------------------------------------------------
std::vector<size_t> wallet2::select_available_unmixable_outputs(bool trusted_daemon)
{
// request all outputs with less than 3 instances
const size_t min_mixin = use_fork_rules(6, 10) ? 4 : 2; // v6 increases min mixin from 2 to 4
return select_available_outputs_from_histogram(min_mixin + 1, false, true, false, trusted_daemon);
}
//----------------------------------------------------------------------------------------------------
std::vector<size_t> wallet2::select_available_mixable_outputs(bool trusted_daemon)
{
// request all outputs with at least 3 instances, so we can use mixin 2 with
const size_t min_mixin = use_fork_rules(6, 10) ? 4 : 2; // v6 increases min mixin from 2 to 4
return select_available_outputs_from_histogram(min_mixin + 1, true, true, true, trusted_daemon);
}
//----------------------------------------------------------------------------------------------------
std::vector<wallet2::pending_tx> wallet2::create_unmixable_sweep_transactions(bool trusted_daemon)
{
// From hard fork 1, we don't consider small amounts to be dust anymore
const bool hf1_rules = use_fork_rules(2, 10); // first hard fork has version 2
tx_dust_policy dust_policy(hf1_rules ? 0 : ::config::DEFAULT_DUST_THRESHOLD);
const uint64_t fee_per_kb = get_per_kb_fee();
// may throw
std::vector<size_t> unmixable_outputs = select_available_unmixable_outputs(trusted_daemon);
size_t num_dust_outputs = unmixable_outputs.size();
if (num_dust_outputs == 0)
{
return std::vector<wallet2::pending_tx>();
}
// split in "dust" and "non dust" to make it easier to select outputs
std::vector<size_t> unmixable_transfer_outputs, unmixable_dust_outputs;
for (auto n: unmixable_outputs)
{
if (m_transfers[n].amount() < fee_per_kb)
unmixable_dust_outputs.push_back(n);
else
unmixable_transfer_outputs.push_back(n);
}
return create_transactions_from(m_account_public_address, unmixable_transfer_outputs, unmixable_dust_outputs, 0 /*fake_outs_count */, 0 /* unlock_time */, 1 /*priority */, std::vector<uint8_t>(), trusted_daemon);
}
bool wallet2::get_tx_key(const crypto::hash &txid, crypto::secret_key &tx_key) const
{
const std::unordered_map<crypto::hash, crypto::secret_key>::const_iterator i = m_tx_keys.find(txid);
if (i == m_tx_keys.end())
return false;
tx_key = i->second;
return true;
}
std::string wallet2::get_wallet_file() const
{
return m_wallet_file;
}
std::string wallet2::get_keys_file() const
{
return m_keys_file;
}
std::string wallet2::get_daemon_address() const
{
return m_daemon_address;
}
uint64_t wallet2::get_daemon_blockchain_height(string &err)
{
uint64_t height;
boost::optional<std::string> result = m_node_rpc_proxy.get_height(height);
if (result)
{
err = *result;
return 0;
}
err = "";
return height;
}
uint64_t wallet2::get_daemon_blockchain_target_height(string &err)
{
epee::json_rpc::request<cryptonote::COMMAND_RPC_GET_INFO::request> req_t = AUTO_VAL_INIT(req_t);
epee::json_rpc::response<cryptonote::COMMAND_RPC_GET_INFO::response, std::string> resp_t = AUTO_VAL_INIT(resp_t);
m_daemon_rpc_mutex.lock();
req_t.jsonrpc = "2.0";
req_t.id = epee::serialization::storage_entry(0);
req_t.method = "get_info";
bool ok = net_utils::invoke_http_json("/json_rpc", req_t, resp_t, m_http_client);
m_daemon_rpc_mutex.unlock();
if (ok)
{
if (resp_t.result.status == CORE_RPC_STATUS_BUSY)
{
err = "daemon is busy. Please try again later.";
}
else if (resp_t.result.status != CORE_RPC_STATUS_OK)
{
err = resp_t.result.status;
}
else // success, cleaning up error message
{
err = "";
}
}
else
{
err = "possibly lost connection to daemon";
}
return resp_t.result.target_height;
}
uint64_t wallet2::get_approximate_blockchain_height() const
{
if (m_testnet) return 0;
// time of v2 fork
const time_t fork_time = 1458748658;
// v2 fork block
const uint64_t fork_block = 1009827;
// avg seconds per block
const int seconds_per_block = DIFFICULTY_TARGET_V2;
// Calculated blockchain height
uint64_t approx_blockchain_height = fork_block + (time(NULL) - fork_time)/seconds_per_block;
LOG_PRINT_L2("Calculated blockchain height: " << approx_blockchain_height);
return approx_blockchain_height;
}
void wallet2::set_tx_note(const crypto::hash &txid, const std::string &note)
{
m_tx_notes[txid] = note;
}
std::string wallet2::get_tx_note(const crypto::hash &txid) const
{
std::unordered_map<crypto::hash, std::string>::const_iterator i = m_tx_notes.find(txid);
if (i == m_tx_notes.end())
return std::string();
return i->second;
}
std::string wallet2::sign(const std::string &data) const
{
crypto::hash hash;
crypto::cn_fast_hash(data.data(), data.size(), hash);
const cryptonote::account_keys &keys = m_account.get_keys();
crypto::signature signature;
crypto::generate_signature(hash, keys.m_account_address.m_spend_public_key, keys.m_spend_secret_key, signature);
return std::string("SigV1") + tools::base58::encode(std::string((const char *)&signature, sizeof(signature)));
}
bool wallet2::verify(const std::string &data, const cryptonote::account_public_address &address, const std::string &signature) const
{
const size_t header_len = strlen("SigV1");
if (signature.size() < header_len || signature.substr(0, header_len) != "SigV1") {
LOG_PRINT_L0("Signature header check error");
return false;
}
crypto::hash hash;
crypto::cn_fast_hash(data.data(), data.size(), hash);
std::string decoded;
if (!tools::base58::decode(signature.substr(header_len), decoded)) {
LOG_PRINT_L0("Signature decoding error");
return false;
}
crypto::signature s;
if (sizeof(s) != decoded.size()) {
LOG_PRINT_L0("Signature decoding error");
return false;
}
memcpy(&s, decoded.data(), sizeof(s));
return crypto::check_signature(hash, address.m_spend_public_key, s);
}
//----------------------------------------------------------------------------------------------------
crypto::public_key wallet2::get_tx_pub_key_from_received_outs(const tools::wallet2::transfer_details &td) const
{
std::vector<tx_extra_field> tx_extra_fields;
if(!parse_tx_extra(td.m_tx.extra, tx_extra_fields))
{
// Extra may only be partially parsed, it's OK if tx_extra_fields contains public key
}
// Due to a previous bug, there might be more than one tx pubkey in extra, one being
// the result of a previously discarded signature.
// For speed, since scanning for outputs is a slow process, we check whether extra
// contains more than one pubkey. If not, the first one is returned. If yes, they're
// checked for whether they yield at least one output
tx_extra_pub_key pub_key_field;
THROW_WALLET_EXCEPTION_IF(!find_tx_extra_field_by_type(tx_extra_fields, pub_key_field, 0), error::wallet_internal_error,
"Public key wasn't found in the transaction extra");
const crypto::public_key tx_pub_key = pub_key_field.pub_key;
bool two_found = find_tx_extra_field_by_type(tx_extra_fields, pub_key_field, 1);
if (!two_found) {
// easy case, just one found
return tx_pub_key;
}
// more than one, loop and search
const cryptonote::account_keys& keys = m_account.get_keys();
size_t pk_index = 0;
while (find_tx_extra_field_by_type(tx_extra_fields, pub_key_field, pk_index++)) {
const crypto::public_key tx_pub_key = pub_key_field.pub_key;
crypto::key_derivation derivation;
generate_key_derivation(tx_pub_key, keys.m_view_secret_key, derivation);
for (size_t i = 0; i < td.m_tx.vout.size(); ++i)
{
uint64_t money_transfered = 0;
bool error = false, received = false;
check_acc_out_precomp(keys.m_account_address.m_spend_public_key, td.m_tx.vout[i], derivation, i, received, money_transfered, error);
if (!error && received)
return tx_pub_key;
}
}
// we found no key yielding an output
THROW_WALLET_EXCEPTION_IF(true, error::wallet_internal_error,
"Public key yielding at least one output wasn't found in the transaction extra");
return cryptonote::null_pkey;
}
bool wallet2::export_key_images(const std::string filename)
{
std::vector<std::pair<crypto::key_image, crypto::signature>> ski = export_key_images();
std::string magic(KEY_IMAGE_EXPORT_FILE_MAGIC, strlen(KEY_IMAGE_EXPORT_FILE_MAGIC));
const cryptonote::account_public_address &keys = get_account().get_keys().m_account_address;
std::string data;
data += std::string((const char *)&keys.m_spend_public_key, sizeof(crypto::public_key));
data += std::string((const char *)&keys.m_view_public_key, sizeof(crypto::public_key));
for (const auto &i: ski)
{
data += std::string((const char *)&i.first, sizeof(crypto::key_image));
data += std::string((const char *)&i.second, sizeof(crypto::signature));
}
// encrypt data, keep magic plaintext
std::string ciphertext = encrypt_with_view_secret_key(data);
return epee::file_io_utils::save_string_to_file(filename, magic + ciphertext);
}
//----------------------------------------------------------------------------------------------------
std::vector<std::pair<crypto::key_image, crypto::signature>> wallet2::export_key_images() const
{
std::vector<std::pair<crypto::key_image, crypto::signature>> ski;
ski.reserve(m_transfers.size());
for (size_t n = 0; n < m_transfers.size(); ++n)
{
const transfer_details &td = m_transfers[n];
crypto::hash hash;
crypto::cn_fast_hash(&td.m_key_image, sizeof(td.m_key_image), hash);
// get ephemeral public key
const cryptonote::tx_out &out = td.m_tx.vout[td.m_internal_output_index];
THROW_WALLET_EXCEPTION_IF(out.target.type() != typeid(txout_to_key), error::wallet_internal_error,
"Output is not txout_to_key");
const cryptonote::txout_to_key &o = boost::get<const cryptonote::txout_to_key>(out.target);
const crypto::public_key pkey = o.key;
// get tx pub key
std::vector<tx_extra_field> tx_extra_fields;
if(!parse_tx_extra(td.m_tx.extra, tx_extra_fields))
{
// Extra may only be partially parsed, it's OK if tx_extra_fields contains public key
}
crypto::public_key tx_pub_key = get_tx_pub_key_from_received_outs(td);
// generate ephemeral secret key
crypto::key_image ki;
cryptonote::keypair in_ephemeral;
cryptonote::generate_key_image_helper(m_account.get_keys(), tx_pub_key, td.m_internal_output_index, in_ephemeral, ki);
THROW_WALLET_EXCEPTION_IF(td.m_key_image_known && ki != td.m_key_image,
error::wallet_internal_error, "key_image generated not matched with cached key image");
THROW_WALLET_EXCEPTION_IF(in_ephemeral.pub != pkey,
error::wallet_internal_error, "key_image generated ephemeral public key not matched with output_key");
// sign the key image with the output secret key
crypto::signature signature;
std::vector<const crypto::public_key*> key_ptrs;
key_ptrs.push_back(&pkey);
crypto::generate_ring_signature((const crypto::hash&)td.m_key_image, td.m_key_image, key_ptrs, in_ephemeral.sec, 0, &signature);
ski.push_back(std::make_pair(td.m_key_image, signature));
}
return ski;
}
uint64_t wallet2::import_key_images(const std::string &filename, uint64_t &spent, uint64_t &unspent)
{
std::string data;
bool r = epee::file_io_utils::load_file_to_string(filename, data);
if (!r)
{
fail_msg_writer() << tr("failed to read file ") << filename;
return 0;
}
const size_t magiclen = strlen(KEY_IMAGE_EXPORT_FILE_MAGIC);
if (data.size() < magiclen || memcmp(data.data(), KEY_IMAGE_EXPORT_FILE_MAGIC, magiclen))
{
fail_msg_writer() << "Bad key image export file magic in " << filename;
return 0;
}
try
{
data = decrypt_with_view_secret_key(std::string(data, magiclen));
}
catch (const std::exception &e)
{
fail_msg_writer() << "Failed to decrypt " << filename << ": " << e.what();
return 0;
}
const size_t headerlen = 2 * sizeof(crypto::public_key);
if (data.size() < headerlen)
{
fail_msg_writer() << "Bad data size from file " << filename;
return 0;
}
const crypto::public_key &public_spend_key = *(const crypto::public_key*)&data[0];
const crypto::public_key &public_view_key = *(const crypto::public_key*)&data[sizeof(crypto::public_key)];
const cryptonote::account_public_address &keys = get_account().get_keys().m_account_address;
if (public_spend_key != keys.m_spend_public_key || public_view_key != keys.m_view_public_key)
{
fail_msg_writer() << "Key images from " << filename << " are for a different account";
return 0;
}
const size_t record_size = sizeof(crypto::key_image) + sizeof(crypto::signature);
if ((data.size() - headerlen) % record_size)
{
fail_msg_writer() << "Bad data size from file " << filename;
return 0;
}
size_t nki = (data.size() - headerlen) / record_size;
std::vector<std::pair<crypto::key_image, crypto::signature>> ski;
ski.reserve(nki);
for (size_t n = 0; n < nki; ++n)
{
crypto::key_image key_image = *reinterpret_cast<const crypto::key_image*>(&data[headerlen + n * record_size]);
crypto::signature signature = *reinterpret_cast<const crypto::signature*>(&data[headerlen + n * record_size + sizeof(crypto::key_image)]);
ski.push_back(std::make_pair(key_image, signature));
}
return import_key_images(ski, spent, unspent);
}
//----------------------------------------------------------------------------------------------------
uint64_t wallet2::import_key_images(const std::vector<std::pair<crypto::key_image, crypto::signature>> &signed_key_images, uint64_t &spent, uint64_t &unspent)
{
COMMAND_RPC_IS_KEY_IMAGE_SPENT::request req = AUTO_VAL_INIT(req);
COMMAND_RPC_IS_KEY_IMAGE_SPENT::response daemon_resp = AUTO_VAL_INIT(daemon_resp);
THROW_WALLET_EXCEPTION_IF(signed_key_images.size() > m_transfers.size(), error::wallet_internal_error,
"The blockchain is out of date compared to the signed key images");
if (signed_key_images.empty())
{
spent = 0;
unspent = 0;
return 0;
}
for (size_t n = 0; n < signed_key_images.size(); ++n)
{
const transfer_details &td = m_transfers[n];
const crypto::key_image &key_image = signed_key_images[n].first;
const crypto::signature &signature = signed_key_images[n].second;
// get ephemeral public key
const cryptonote::tx_out &out = td.m_tx.vout[td.m_internal_output_index];
THROW_WALLET_EXCEPTION_IF(out.target.type() != typeid(txout_to_key), error::wallet_internal_error,
"Non txout_to_key output found");
const cryptonote::txout_to_key &o = boost::get<cryptonote::txout_to_key>(out.target);
const crypto::public_key pkey = o.key;
std::vector<const crypto::public_key*> pkeys;
pkeys.push_back(&pkey);
THROW_WALLET_EXCEPTION_IF(!(rct::scalarmultKey(rct::ki2rct(key_image), rct::curveOrder()) == rct::identity()),
error::wallet_internal_error, "Key image out of validity domain: input " + boost::lexical_cast<std::string>(n) + "/"
+ boost::lexical_cast<std::string>(signed_key_images.size()) + ", key image " + epee::string_tools::pod_to_hex(key_image));
THROW_WALLET_EXCEPTION_IF(!crypto::check_ring_signature((const crypto::hash&)key_image, key_image, pkeys, &signature),
error::wallet_internal_error, "Signature check failed: input " + boost::lexical_cast<std::string>(n) + "/"
+ boost::lexical_cast<std::string>(signed_key_images.size()) + ", key image " + epee::string_tools::pod_to_hex(key_image)
+ ", signature " + epee::string_tools::pod_to_hex(signature) + ", pubkey " + epee::string_tools::pod_to_hex(*pkeys[0]));
req.key_images.push_back(epee::string_tools::pod_to_hex(key_image));
}
for (size_t n = 0; n < signed_key_images.size(); ++n)
{
m_transfers[n].m_key_image = signed_key_images[n].first;
m_key_images[m_transfers[n].m_key_image] = n;
m_transfers[n].m_key_image_known = true;
}
m_daemon_rpc_mutex.lock();
bool r = epee::net_utils::invoke_http_json("/is_key_image_spent", req, daemon_resp, m_http_client, rpc_timeout);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "is_key_image_spent");
THROW_WALLET_EXCEPTION_IF(daemon_resp.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "is_key_image_spent");
THROW_WALLET_EXCEPTION_IF(daemon_resp.status != CORE_RPC_STATUS_OK, error::is_key_image_spent_error, daemon_resp.status);
THROW_WALLET_EXCEPTION_IF(daemon_resp.spent_status.size() != signed_key_images.size(), error::wallet_internal_error,
"daemon returned wrong response for is_key_image_spent, wrong amounts count = " +
std::to_string(daemon_resp.spent_status.size()) + ", expected " + std::to_string(signed_key_images.size()));
spent = 0;
unspent = 0;
for (size_t n = 0; n < daemon_resp.spent_status.size(); ++n)
{
transfer_details &td = m_transfers[n];
uint64_t amount = td.amount();
td.m_spent = daemon_resp.spent_status[n] != COMMAND_RPC_IS_KEY_IMAGE_SPENT::UNSPENT;
if (td.m_spent)
spent += amount;
else
unspent += amount;
LOG_PRINT_L2("Transfer " << n << ": " << print_money(amount) << " (" << td.m_global_output_index << "): "
<< (td.m_spent ? "spent" : "unspent") << " (key image " << req.key_images[n] << ")");
}
LOG_PRINT_L1("Total: " << print_money(spent) << " spent, " << print_money(unspent) << " unspent");
return m_transfers[signed_key_images.size() - 1].m_block_height;
}
//----------------------------------------------------------------------------------------------------
std::vector<tools::wallet2::transfer_details> wallet2::export_outputs() const
{
std::vector<tools::wallet2::transfer_details> outs;
outs.reserve(m_transfers.size());
for (size_t n = 0; n < m_transfers.size(); ++n)
{
const transfer_details &td = m_transfers[n];
outs.push_back(td);
}
return outs;
}
//----------------------------------------------------------------------------------------------------
size_t wallet2::import_outputs(const std::vector<tools::wallet2::transfer_details> &outputs)
{
m_transfers.clear();
m_transfers.reserve(outputs.size());
for (size_t i = 0; i < outputs.size(); ++i)
{
transfer_details td = outputs[i];
// the hot wallet wouldn't have known about key images (except if we already exported them)
cryptonote::keypair in_ephemeral;
std::vector<tx_extra_field> tx_extra_fields;
tx_extra_pub_key pub_key_field;
THROW_WALLET_EXCEPTION_IF(td.m_tx.vout.empty(), error::wallet_internal_error, "tx with no outputs at index " + boost::lexical_cast<std::string>(i));
THROW_WALLET_EXCEPTION_IF(!parse_tx_extra(td.m_tx.extra, tx_extra_fields), error::wallet_internal_error,
"Transaction extra has unsupported format at index " + boost::lexical_cast<std::string>(i));
crypto::public_key tx_pub_key = get_tx_pub_key_from_received_outs(td);
cryptonote::generate_key_image_helper(m_account.get_keys(), tx_pub_key, td.m_internal_output_index, in_ephemeral, td.m_key_image);
td.m_key_image_known = true;
THROW_WALLET_EXCEPTION_IF(in_ephemeral.pub != boost::get<cryptonote::txout_to_key>(td.m_tx.vout[td.m_internal_output_index].target).key,
error::wallet_internal_error, "key_image generated ephemeral public key not matched with output_key at index " + boost::lexical_cast<std::string>(i));
m_key_images[td.m_key_image] = m_transfers.size();
m_pub_keys[td.get_public_key()] = m_transfers.size();
m_transfers.push_back(td);
}
return m_transfers.size();
}
//----------------------------------------------------------------------------------------------------
std::string wallet2::encrypt(const std::string &plaintext, const crypto::secret_key &skey, bool authenticated) const
{
crypto::chacha8_key key;
crypto::generate_chacha8_key(&skey, sizeof(skey), key);
std::string ciphertext;
crypto::chacha8_iv iv = crypto::rand<crypto::chacha8_iv>();
ciphertext.resize(plaintext.size() + sizeof(iv) + (authenticated ? sizeof(crypto::signature) : 0));
crypto::chacha8(plaintext.data(), plaintext.size(), key, iv, &ciphertext[sizeof(iv)]);
memcpy(&ciphertext[0], &iv, sizeof(iv));
if (authenticated)
{
crypto::hash hash;
crypto::cn_fast_hash(ciphertext.data(), ciphertext.size() - sizeof(signature), hash);
crypto::public_key pkey;
crypto::secret_key_to_public_key(skey, pkey);
crypto::signature &signature = *(crypto::signature*)&ciphertext[ciphertext.size() - sizeof(crypto::signature)];
crypto::generate_signature(hash, pkey, skey, signature);
}
return ciphertext;
}
//----------------------------------------------------------------------------------------------------
std::string wallet2::encrypt_with_view_secret_key(const std::string &plaintext, bool authenticated) const
{
return encrypt(plaintext, get_account().get_keys().m_view_secret_key, authenticated);
}
//----------------------------------------------------------------------------------------------------
std::string wallet2::decrypt(const std::string &ciphertext, const crypto::secret_key &skey, bool authenticated) const
{
const size_t prefix_size = sizeof(chacha8_iv) + (authenticated ? sizeof(crypto::signature) : 0);
THROW_WALLET_EXCEPTION_IF(ciphertext.size() < prefix_size,
error::wallet_internal_error, "Unexpected ciphertext size");
crypto::chacha8_key key;
crypto::generate_chacha8_key(&skey, sizeof(skey), key);
const crypto::chacha8_iv &iv = *(const crypto::chacha8_iv*)&ciphertext[0];
std::string plaintext;
plaintext.resize(ciphertext.size() - prefix_size);
if (authenticated)
{
crypto::hash hash;
crypto::cn_fast_hash(ciphertext.data(), ciphertext.size() - sizeof(signature), hash);
crypto::public_key pkey;
crypto::secret_key_to_public_key(skey, pkey);
const crypto::signature &signature = *(const crypto::signature*)&ciphertext[ciphertext.size() - sizeof(crypto::signature)];
THROW_WALLET_EXCEPTION_IF(!crypto::check_signature(hash, pkey, signature),
error::wallet_internal_error, "Failed to authenticate criphertext");
}
crypto::chacha8(ciphertext.data() + sizeof(iv), ciphertext.size() - prefix_size, key, iv, &plaintext[0]);
return plaintext;
}
//----------------------------------------------------------------------------------------------------
std::string wallet2::decrypt_with_view_secret_key(const std::string &ciphertext, bool authenticated) const
{
return decrypt(ciphertext, get_account().get_keys().m_view_secret_key, authenticated);
}
//----------------------------------------------------------------------------------------------------
std::string wallet2::make_uri(const std::string &address, const std::string &payment_id, uint64_t amount, const std::string &tx_description, const std::string &recipient_name, std::string &error)
{
cryptonote::account_public_address tmp_address;
bool has_payment_id;
crypto::hash8 new_payment_id;
if(!get_account_integrated_address_from_str(tmp_address, has_payment_id, new_payment_id, testnet(), address))
{
error = std::string("wrong address: ") + address;
return std::string();
}
// we want only one payment id
if (has_payment_id && !payment_id.empty())
{
error = "A single payment id is allowed";
return std::string();
}
if (!payment_id.empty())
{
crypto::hash pid32;
crypto::hash8 pid8;
if (!wallet2::parse_long_payment_id(payment_id, pid32) && !wallet2::parse_short_payment_id(payment_id, pid8))
{
error = "Invalid payment id";
return std::string();
}
}
std::string uri = "monero:" + address;
unsigned int n_fields = 0;
if (!payment_id.empty())
{
uri += (n_fields++ ? "&" : "?") + std::string("tx_payment_id=") + payment_id;
}
if (amount > 0)
{
// URI encoded amount is in decimal units, not atomic units
uri += (n_fields++ ? "&" : "?") + std::string("tx_amount=") + cryptonote::print_money(amount);
}
if (!recipient_name.empty())
{
uri += (n_fields++ ? "&" : "?") + std::string("recipient_name=") + epee::net_utils::conver_to_url_format(recipient_name);
}
if (!tx_description.empty())
{
uri += (n_fields++ ? "&" : "?") + std::string("tx_description=") + epee::net_utils::conver_to_url_format(tx_description);
}
return uri;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::parse_uri(const std::string &uri, std::string &address, std::string &payment_id, uint64_t &amount, std::string &tx_description, std::string &recipient_name, std::vector<std::string> &unknown_parameters, std::string &error)
{
if (uri.substr(0, 7) != "monero:")
{
error = std::string("URI has wrong scheme (expected \"monero:\"): ") + uri;
return false;
}
std::string remainder = uri.substr(7);
const char *ptr = strchr(remainder.c_str(), '?');
address = ptr ? remainder.substr(0, ptr-remainder.c_str()) : remainder;
cryptonote::account_public_address addr;
bool has_payment_id;
crypto::hash8 new_payment_id;
if(!get_account_integrated_address_from_str(addr, has_payment_id, new_payment_id, testnet(), address))
{
error = std::string("URI has wrong address: ") + address;
return false;
}
if (!strchr(remainder.c_str(), '?'))
return true;
std::vector<std::string> arguments;
std::string body = remainder.substr(address.size() + 1);
if (body.empty())
return true;
boost::split(arguments, body, boost::is_any_of("&"));
std::set<std::string> have_arg;
for (const auto &arg: arguments)
{
std::vector<std::string> kv;
boost::split(kv, arg, boost::is_any_of("="));
if (kv.size() != 2)
{
error = std::string("URI has wrong parameter: ") + arg;
return false;
}
if (have_arg.find(kv[0]) != have_arg.end())
{
error = std::string("URI has more than one instance of " + kv[0]);
return false;
}
have_arg.insert(kv[0]);
if (kv[0] == "tx_amount")
{
amount = 0;
if (!cryptonote::parse_amount(amount, kv[1]))
{
error = std::string("URI has invalid amount: ") + kv[1];
return false;
}
}
else if (kv[0] == "tx_payment_id")
{
if (has_payment_id)
{
error = "Separate payment id given with an integrated address";
return false;
}
crypto::hash hash;
crypto::hash8 hash8;
if (!wallet2::parse_long_payment_id(kv[1], hash) && !wallet2::parse_short_payment_id(kv[1], hash8))
{
error = "Invalid payment id: " + kv[1];
return false;
}
payment_id = kv[1];
}
else if (kv[0] == "recipient_name")
{
recipient_name = epee::net_utils::convert_from_url_format(kv[1]);
}
else if (kv[0] == "tx_description")
{
tx_description = epee::net_utils::convert_from_url_format(kv[1]);
}
else
{
unknown_parameters.push_back(arg);
}
}
return true;
}
//----------------------------------------------------------------------------------------------------
uint64_t wallet2::get_blockchain_height_by_date(uint16_t year, uint8_t month, uint8_t day)
{
uint32_t version;
if (!check_connection(&version))
{
throw std::runtime_error("failed to connect to daemon: " + get_daemon_address());
}
if (version < MAKE_CORE_RPC_VERSION(1, 6))
{
throw std::runtime_error("this function requires RPC version 1.6 or higher");
}
std::tm date = { 0, 0, 0, 0, 0, 0, 0, 0 };
date.tm_year = year - 1900;
date.tm_mon = month - 1;
date.tm_mday = day;
if (date.tm_mon < 0 || 11 < date.tm_mon || date.tm_mday < 1 || 31 < date.tm_mday)
{
throw std::runtime_error("month or day out of range");
}
uint64_t timestamp_target = std::mktime(&date);
std::string err;
uint64_t height_min = 0;
uint64_t height_max = get_daemon_blockchain_height(err) - 1;
if (!err.empty())
{
throw std::runtime_error("failed to get blockchain height");
}
while (true)
{
COMMAND_RPC_GET_BLOCKS_BY_HEIGHT::request req;
COMMAND_RPC_GET_BLOCKS_BY_HEIGHT::response res;
uint64_t height_mid = (height_min + height_max) / 2;
req.heights =
{
height_min,
height_mid,
height_max
};
bool r = net_utils::invoke_http_bin("/getblocks_by_height.bin", req, res, m_http_client, rpc_timeout);
if (!r || res.status != CORE_RPC_STATUS_OK)
{
std::ostringstream oss;
oss << "failed to get blocks by heights: ";
for (auto height : req.heights)
oss << height << ' ';
oss << endl << "reason: ";
if (!r)
oss << "possibly lost connection to daemon";
else if (res.status == CORE_RPC_STATUS_BUSY)
oss << "daemon is busy";
else
oss << res.status;
throw std::runtime_error(oss.str());
}
cryptonote::block blk_min, blk_mid, blk_max;
if (!parse_and_validate_block_from_blob(res.blocks[0].block, blk_min)) throw std::runtime_error("failed to parse blob at height " + std::to_string(height_min));
if (!parse_and_validate_block_from_blob(res.blocks[1].block, blk_mid)) throw std::runtime_error("failed to parse blob at height " + std::to_string(height_mid));
if (!parse_and_validate_block_from_blob(res.blocks[2].block, blk_max)) throw std::runtime_error("failed to parse blob at height " + std::to_string(height_max));
uint64_t timestamp_min = blk_min.timestamp;
uint64_t timestamp_mid = blk_mid.timestamp;
uint64_t timestamp_max = blk_max.timestamp;
if (!(timestamp_min <= timestamp_mid && timestamp_mid <= timestamp_max))
{
// the timestamps are not in the chronological order.
// assuming they're sufficiently close to each other, simply return the smallest height
return std::min({height_min, height_mid, height_max});
}
if (timestamp_target > timestamp_max)
{
throw std::runtime_error("specified date is in the future");
}
if (timestamp_target <= timestamp_min + 2 * 24 * 60 * 60) // two days of "buffer" period
{
return height_min;
}
if (timestamp_target <= timestamp_mid)
height_max = height_mid;
else
height_min = height_mid;
if (height_max - height_min <= 2 * 24 * 30) // don't divide the height range finer than two days
{
return height_min;
}
}
}
//----------------------------------------------------------------------------------------------------
void wallet2::generate_genesis(cryptonote::block& b) {
if (m_testnet)
{
cryptonote::generate_genesis_block(b, config::testnet::GENESIS_TX, config::testnet::GENESIS_NONCE);
}
else
{
cryptonote::generate_genesis_block(b, config::GENESIS_TX, config::GENESIS_NONCE);
}
}
}
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