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danicoin/src/wallet/wallet2.cpp
moneromooo-monero a0131c8be3
wallet: auto sync outputs and key images in cold signing files 
When passing around unsigned and signed transactions, outputs
and key images are passed along (outputs are passed along unsigned
transactions from the hot wallet to the cold wallet, key images
are passed along with signed transations from the cold wallet
to the hot wallet), to allow more user friendly syncing between
hot and cold wallets.
2016-11-16 09:22:24 +00:00

4901 lines
196 KiB
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// Copyright (c) 2014-2016, 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/archive/binary_oarchive.hpp>
#include <boost/archive/binary_iarchive.hpp>
#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_core/cryptonote_format_utils.h"
#include "rpc/core_rpc_server_commands_defs.h"
#include "misc_language.h"
#include "cryptonote_core/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/dns_utils.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;
// 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\002"
#define SIGNED_TX_PREFIX "Monero signed tx set\002"
#define RECENT_OUTPUT_RATIO (0.25) // 25% of outputs are from the recent zone
#define RECENT_OUTPUT_ZONE (5 * 86400) // last 5 days are the recent zone
#define FEE_ESTIMATE_GRACE_BLOCKS 10 // estimate fee valid for that many blocks
#define KILL_IOSERVICE() \
do { \
work.reset(); \
while (!ioservice.stopped()) ioservice.poll(); \
threadpool.join_all(); \
ioservice.stop(); \
} while(0)
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"), "", 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<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;
}
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(daemon_address);
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))
{
tools::password_container pwd(false);
pwd.password(command_line::get_arg(vm, opts.password));
return {std::move(pwd)};
}
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
password.erase(std::remove(password.begin() - 1, password.end(), '\n'), password.end());
password.erase(std::remove(password.end() - 1, password.end(), '\r'), password.end());
return {tools::password_container(std::move(password))};
}
//vm is already part of the password container class. just need to check vm for an already existing wallet
//here need to pass in variable map. This will indicate if the wallet already exists to the read password function
tools::password_container pwd(verify);
if (pwd.read_password())
{
return {std::move(pwd)};
}
tools::fail_msg_writer() << tools::wallet2::tr("failed to read wallet password");
return boost::none;
}
std::unique_ptr<tools::wallet2> generate_from_json(const std::string& json_file, bool testnet, bool restricted)
{
/* 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))
{
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))
{
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(new tools::wallet2(testnet, restricted));
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;
}
} //namespace
namespace tools
{
// for now, limit to 30 attempts. TODO: discuss a good number to limit to.
const size_t MAX_SPLIT_ATTEMPTS = 30;
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.testnet);
command_line::add_arg(desc_params, opts.restricted);
}
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, command_line::get_arg(vm, opts.testnet), command_line::get_arg(vm, opts.restricted));
}
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(false)};
}
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(false)};
}
return {make_basic(vm, opts), std::move(*pwd)};
}
//----------------------------------------------------------------------------------------------------
void wallet2::init(const std::string& daemon_address, uint64_t upper_transaction_size_limit)
{
m_upper_transaction_size_limit = upper_transaction_size_limit;
m_daemon_address = daemon_address;
}
//----------------------------------------------------------------------------------------------------
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 cryptonote::transaction& tx, const std::vector<uint64_t> &o_indices, uint64_t height, uint64_t ts, bool miner_tx, bool pool)
{
class lazy_txid_getter
{
const cryptonote::transaction &tx;
crypto::hash lazy_txid;
bool computed;
public:
lazy_txid_getter(const transaction &tx): tx(tx), computed(false) {}
const crypto::hash &operator()()
{
if (!computed)
{
lazy_txid = cryptonote::get_transaction_hash(tx);
computed = true;
}
return lazy_txid;
}
} txid(tx);
if (!miner_tx)
process_unconfirmed(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, 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()));
}
BOOST_FOREACH(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;
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, 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;
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, tx, td.m_amount);
}
}
}
}
}
uint64_t tx_money_spent_in_ins = 0;
// check all outputs for spending (compare key images)
BOOST_FOREACH(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, tx, amount, tx);
}
}
}
if (tx_money_spent_in_ins > 0)
{
process_outgoing(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);
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 cryptonote::transaction& tx, uint64_t height)
{
if (m_unconfirmed_txs.empty())
return;
crypto::hash txid = get_transaction_hash(tx);
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 cryptonote::transaction &tx, uint64_t height, uint64_t ts, uint64_t spent, uint64_t received)
{
crypto::hash txid = get_transaction_hash(tx);
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(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);
BOOST_FOREACH(auto& txblob, bche.txs)
{
cryptonote::transaction tx;
bool r = parse_and_validate_tx_from_blob(txblob, tx);
THROW_WALLET_EXCEPTION_IF(!r, error::tx_parse_error, txblob);
process_new_transaction(tx, o_indices.indices[txidx++].indices, height, b.timestamp, false, false);
}
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;
req.start_height = start_height;
m_daemon_rpc_mutex.lock();
bool r = net_utils::invoke_http_bin_remote_command2(m_daemon_address + "/getblocks.bin", req, res, m_http_client, WALLET_RCP_CONNECTION_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_remote_command2(m_daemon_address + "/gethashes.bin", req, res, m_http_client, WALLET_RCP_CONNECTION_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
{
BOOST_FOREACH(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()
{
// get the pool state
cryptonote::COMMAND_RPC_GET_TRANSACTION_POOL::request req;
cryptonote::COMMAND_RPC_GET_TRANSACTION_POOL::response res;
m_daemon_rpc_mutex.lock();
bool r = epee::net_utils::invoke_http_json_remote_command2(m_daemon_address + "/get_transaction_pool", req, res, m_http_client, 200000);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "get_transaction_pool");
THROW_WALLET_EXCEPTION_IF(res.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "get_transaction_pool");
THROW_WALLET_EXCEPTION_IF(res.status != CORE_RPC_STATUS_OK, error::get_tx_pool_error);
// 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 std::string txid = epee::string_tools::pod_to_hex(it->first);
bool found = false;
for (auto it2: res.transactions)
{
if (it2.id_hash == 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;
}
}
}
}
}
}
}
// 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 std::string txid = string_tools::pod_to_hex(uit->first);
bool found = false;
for (auto it2: res.transactions)
{
if (it2.id_hash == txid)
{
found = true;
break;
}
}
auto pit = uit++;
if (!found)
{
m_unconfirmed_payments.erase(pit);
}
}
// add new pool txes to us
for (auto it: res.transactions)
{
cryptonote::blobdata txid_data;
if(epee::string_tools::parse_hexstr_to_binbuff(it.id_hash, txid_data))
{
const crypto::hash txid = *reinterpret_cast<const crypto::hash*>(txid_data.data());
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
cryptonote::COMMAND_RPC_GET_TRANSACTIONS::request req;
cryptonote::COMMAND_RPC_GET_TRANSACTIONS::response res;
req.txs_hashes.push_back(it.id_hash);
req.decode_as_json = false;
m_daemon_rpc_mutex.lock();
bool r = epee::net_utils::invoke_http_json_remote_command2(m_daemon_address + "/gettransactions", req, res, m_http_client, 200000);
m_daemon_rpc_mutex.unlock();
if (r && res.status == CORE_RPC_STATUS_OK)
{
if (res.txs.size() == 1)
{
// might have just been put in a block
if (res.txs[0].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[0].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(tx, std::vector<uint64_t>(), 0, time(NULL), false, true);
}
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");
}
}
else
{
LOG_PRINT_L0("Expected 1 tx, got " << res.txs.size());
}
}
else
{
LOG_PRINT_L0("Error calling gettransactions daemon RPC: r " << r << ", status " << res.status);
}
}
else
{
LOG_PRINT_L1("We sent that one");
}
}
else
{
LOG_PRINT_L1("Already saw that one");
}
}
else
{
LOG_PRINT_L0("Failed to parse txid");
}
}
}
//----------------------------------------------------------------------------------------------------
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;
BOOST_FOREACH(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;
}
}
}
//----------------------------------------------------------------------------------------------------
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
}
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(!added_blocks)
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
{
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()
{
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_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());
// 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_default_mixin = 0;
m_default_priority = 0;
m_auto_refresh = true;
m_refresh_type = RefreshType::RefreshDefault;
m_confirm_missing_payment_id = true;
}
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, 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;
}
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;
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) LOG_PRINT_RED_L0("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) LOG_PRINT_RED_L0("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) LOG_PRINT_RED_L0("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, false);
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;
}
//----------------------------------------------------------------------------------------------------
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(bool *same_version)
{
boost::lock_guard<boost::mutex> lock(m_daemon_rpc_mutex);
if(!m_http_client.is_connected())
{
net_utils::http::url_content u;
net_utils::parse_url(m_daemon_address, u);
if(!u.port)
{
u.port = m_testnet ? config::testnet::RPC_DEFAULT_PORT : config::RPC_DEFAULT_PORT;
}
if (!m_http_client.connect(u.host, std::to_string(u.port), WALLET_RCP_CONNECTION_TIMEOUT))
return false;
}
if (same_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_remote_command2(m_daemon_address + "/json_rpc", req_t, resp_t, m_http_client);
if (!r || resp_t.result.status != CORE_RPC_STATUS_OK)
*same_version = false;
else
*same_version = resp_t.result.version == CORE_RPC_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;
boost::archive::binary_iarchive ar(iss);
ar >> *this;
}
catch (...)
{
LOG_PRINT_L1("Failed to load encrypted cache, trying unencrypted");
std::stringstream iss;
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 missmatch. 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);
}
//----------------------------------------------------------------------------------------------------
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::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;
BOOST_FOREACH(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;
BOOST_FOREACH(auto& td, m_transfers)
if(!td.m_spent)
amount += td.amount();
BOOST_FOREACH(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()
{
std::vector<std::string> key_images;
// make a list of key images for all our outputs
for (size_t i = 0; i < m_transfers.size(); ++i)
{
const transfer_details& td = m_transfers[i];
key_images.push_back(string_tools::pod_to_hex(td.m_key_image));
}
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);
req.key_images = key_images;
m_daemon_rpc_mutex.lock();
bool r = epee::net_utils::invoke_http_json_remote_command2(m_daemon_address + "/is_key_image_spent", req, daemon_resp, m_http_client, 200000);
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() != 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(key_images.size()));
// 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 != (daemon_resp.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;
}
}
//----------------------------------------------------------------------------------------------------
// 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) 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);
}
size_t 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) const
{
return pop_best_value_from(m_transfers, unused_indices, selected_transfers);
}
//----------------------------------------------------------------------------------------------------
// 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;
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
/**
* @brief gets a monero address from the TXT record of a DNS entry
*
* gets the monero address from the TXT record of the DNS entry associated
* with <url>. If this lookup fails, or the TXT record does not contain an
* XMR address in the correct format, returns an empty string. <dnssec_valid>
* will be set true or false according to whether or not the DNS query passes
* DNSSEC validation.
*
* @param url the url to look up
* @param dnssec_valid return-by-reference for DNSSEC status of query
*
* @return a monero address (as a string) or an empty string
*/
std::vector<std::string> wallet2::addresses_from_url(const std::string& url, bool& dnssec_valid)
{
std::vector<std::string> addresses;
// get txt records
bool dnssec_available, dnssec_isvalid;
std::string oa_addr = tools::DNSResolver::instance().get_dns_format_from_oa_address(url);
auto records = tools::DNSResolver::instance().get_txt_record(oa_addr, dnssec_available, dnssec_isvalid);
// TODO: update this to allow for conveying that dnssec was not available
if (dnssec_available && dnssec_isvalid)
{
dnssec_valid = true;
}
else dnssec_valid = false;
// for each txt record, try to find a monero address in it.
for (auto& rec : records)
{
std::string addr = address_from_txt_record(rec);
if (addr.size())
{
addresses.push_back(addr);
}
}
return addresses;
}
//----------------------------------------------------------------------------------------------------
// TODO: parse the string in a less stupid way, probably with regex
std::string wallet2::address_from_txt_record(const std::string& s)
{
// make sure the txt record has "oa1:xmr" and find it
auto pos = s.find("oa1:xmr");
// search from there to find "recipient_address="
pos = s.find("recipient_address=", pos);
pos += 18; // move past "recipient_address="
// find the next semicolon
auto pos2 = s.find(";", pos);
if (pos2 != std::string::npos)
{
// length of address == 95, we can at least validate that much here
if (pos2 - pos == 95)
{
return s.substr(pos, 95);
}
}
return std::string();
}
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;
}
//----------------------------------------------------------------------------------------------------
// 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_remote_command2(m_daemon_address + "/sendrawtransaction", req, daemon_send_resp, m_http_client, 200000);
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;
BOOST_FOREACH(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 << "]");
BOOST_FOREACH(size_t idx, ptx.selected_transfers)
{
set_spent(idx, 0);
}
//fee includes dust if dust policy specified it.
LOG_PRINT_L0("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)
txs.txes.push_back(tx.construction_data);
txs.transfers = m_transfers;
std::string s = obj_to_json_str(txs);
if (s.empty())
return false;
LOG_PRINT_L2("Saving unsigned tx data: " << s);
// save as binary as there's no implementation of loading a json_archive
if (!::serialization::dump_binary(txs, s))
return false;
return epee::file_io_utils::save_string_to_file(filename, std::string(UNSIGNED_TX_PREFIX) + s);
}
//----------------------------------------------------------------------------------------------------
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)
{
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;
}
unsigned_tx_set exported_txs;
if (!::serialization::parse_binary(std::string(s.c_str() + magiclen, s.size() - magiclen), exported_txs))
{
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");
if (accept_func && !accept_func(exported_txs))
{
LOG_PRINT_L1("Transactions rejected by callback");
return false;
}
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.splitted_dsts;
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;
}
s = obj_to_json_str(signed_txes);
if (s.empty())
return false;
LOG_PRINT_L2("Saving signed tx data: " << s);
// save as binary as there's no implementation of loading a json_archive
if (!::serialization::dump_binary(signed_txes, s))
return false;
return epee::file_io_utils::save_string_to_file(signed_filename, std::string(SIGNED_TX_PREFIX) + s);
}
//----------------------------------------------------------------------------------------------------
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;
}
if (!::serialization::parse_binary(std::string(s.c_str() + magiclen, s.size() - magiclen), signed_txs))
{
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, bool use_new_fee) const
{
static const uint64_t old_multipliers[3] = {1, 2, 3};
static const uint64_t new_multipliers[3] = {1, 20, 166};
// 0 -> default (here, x1)
if (priority == 0)
priority = m_default_priority;
if (priority == 0)
priority = 1;
// 1 to 3 are allowed as priorities
if (priority >= 1 && priority <= 3)
return (use_new_fee ? new_multipliers : old_multipliers)[priority-1];
THROW_WALLET_EXCEPTION_IF (false, error::invalid_priority);
return 1;
}
//----------------------------------------------------------------------------------------------------
uint64_t wallet2::get_dynamic_per_kb_fee_estimate()
{
epee::json_rpc::request<cryptonote::COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE::request> req_t = AUTO_VAL_INIT(req_t);
epee::json_rpc::response<cryptonote::COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE::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_fee_estimate";
req_t.params.grace_blocks = FEE_ESTIMATE_GRACE_BLOCKS;
bool r = net_utils::invoke_http_json_remote_command2(m_daemon_address + "/json_rpc", req_t, resp_t, m_http_client);
m_daemon_rpc_mutex.unlock();
CHECK_AND_ASSERT_THROW_MES(r, "Failed to connect to daemon");
CHECK_AND_ASSERT_THROW_MES(resp_t.result.status != CORE_RPC_STATUS_BUSY, "Failed to connect to daemon");
CHECK_AND_ASSERT_THROW_MES(resp_t.result.status == CORE_RPC_STATUS_OK, "Failed to get fee estimate");
return resp_t.result.fee;
}
//----------------------------------------------------------------------------------------------------
uint64_t wallet2::get_per_kb_fee()
{
bool use_dyn_fee = use_fork_rules(HF_VERSION_DYNAMIC_FEE, -720 * 14);
if (!use_dyn_fee)
return FEE_PER_KB;
try
{
return get_dynamic_per_kb_fee_estimate();
}
catch (...)
{
LOG_PRINT_L1("Failed to query per kB fee, using " << print_money(FEE_PER_KB));
return FEE_PER_KB;
}
}
//----------------------------------------------------------------------------------------------------
// 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, trusted_daemon);
const bool use_new_fee = use_fork_rules(3, -720 * 14);
const uint64_t fee_per_kb = get_per_kb_fee();
const uint64_t fee_multiplier = get_fee_multiplier(priority, use_new_fee);
// 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"
BOOST_FOREACH(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
BOOST_FOREACH(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
BOOST_FOREACH(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
BOOST_FOREACH(size_t idx2, ptx.selected_transfers)
{
set_unspent(idx2);
}
}
throw;
}
}
}
template<typename entry>
void wallet2::get_outs(std::vector<std::vector<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_remote_command2(m_daemon_address + "/json_rpc", req_t, resp_t, m_http_client);
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::request req = AUTO_VAL_INIT(req);
COMMAND_RPC_GET_OUTPUTS::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});
// 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
{
// equiprobable distribution over the recent outs
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 COMMAND_RPC_GET_OUTPUTS::out &a, const COMMAND_RPC_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_remote_command2(m_daemon_address + "/get_outs.bin", req, daemon_resp, m_http_client, 200000);
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<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());
// 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 entry &a, const 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<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,
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_tranaction_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
BOOST_FOREACH(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;
BOOST_FOREACH(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);
typedef std::tuple<uint64_t, crypto::public_key, rct::key> entry;
std::vector<std::vector<entry>> outs;
get_outs(outs, selected_transfers, fake_outputs_count); // may throw
//prepare inputs
typedef cryptonote::tx_source_entry::output_entry tx_output_entry;
size_t i = 0, out_index = 0;
std::vector<cryptonote::tx_source_entry> sources;
BOOST_FOREACH(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);
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;
}
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);
BOOST_FOREACH(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));
}
BOOST_FOREACH(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;
bool r = cryptonote::construct_tx_and_get_tx_key(m_account.get_keys(), sources, splitted_dsts, extra, tx, unlock_time, tx_key);
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;
}
void wallet2::transfer_selected_rct(std::vector<cryptonote::tx_destination_entry> dsts, const std::list<size_t> selected_transfers, size_t fake_outputs_count,
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_tranaction_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
BOOST_FOREACH(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;
BOOST_FOREACH(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);
typedef std::tuple<uint64_t, crypto::public_key, rct::key> entry;
std::vector<std::vector<entry>> outs;
get_outs(outs, selected_transfers, fake_outputs_count); // may throw
//prepare inputs
size_t i = 0, out_index = 0;
std::vector<cryptonote::tx_source_entry> sources;
BOOST_FOREACH(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);
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;
}
// 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);
if (needed_money < found_money)
{
change_dts.addr = m_account.get_keys().m_account_address;
change_dts.amount = found_money - needed_money;
splitted_dsts.push_back(change_dts);
}
crypto::secret_key tx_key;
bool r = cryptonote::construct_tx_and_get_tx_key(m_account.get_keys(), sources, splitted_dsts, extra, tx, unlock_time, tx_key, true);
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);
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);
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;
}
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;
}
std::vector<size_t> wallet2::pick_prefered_rct_inputs(uint64_t needed_money) const
{
std::vector<size_t> picks;
float current_output_relatdness = 1.0f;
LOG_PRINT_L2("pick_prefered_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;
}
// 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) {
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(amount,addr));
else
i->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_tranaction_size_limit();
const bool use_rct = use_fork_rules(4, 0);
const bool use_new_fee = use_fork_rules(3, -720 * 14);
const uint64_t fee_per_kb = get_per_kb_fee();
const uint64_t fee_multiplier = get_fee_multiplier(priority, use_new_fee);
// 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;
BOOST_FOREACH(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;
// 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.
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_prefered_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);
}
}
// while we have something to send
while ((!dsts.empty() && dsts[0].amount > 0) || adding_fee) {
TX &tx = txes.back();
// 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 = !prefered_inputs.empty() ? pop_back(prefered_inputs) : !unused_transfers_indices.empty() ? pop_best_value(unused_transfers_indices, tx.selected_transfers) : pop_best_value(unused_dust_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;
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)
{
// 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);
available_amount -= dsts[0].amount;
dsts[0].amount = 0;
pop_index(dsts, 0);
}
if (available_amount > 0 && !dsts.empty()) {
// 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);
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
{
size_t estimated_rct_tx_size;
if (use_rct)
estimated_rct_tx_size = estimate_rct_tx_size(tx.selected_transfers.size(), fake_outs_count, tx.dsts.size() + 1);
else
estimated_rct_tx_size = tx.selected_transfers.size() * (fake_outs_count+1) * APPROXIMATE_INPUT_BYTES;
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, unlock_time, needed_fee, extra,
test_tx, test_ptx);
else
transfer_selected(tx.dsts, tx.selected_transfers, fake_outs_count, 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");
if (use_rct)
transfer_selected_rct(tx.dsts, tx.selected_transfers, fake_outs_count, unlock_time, needed_fee, extra,
test_tx, test_ptx);
else
transfer_selected(tx.dsts, tx.selected_transfers, fake_outs_count, 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);
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(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 (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_tranaction_size_limit();
const bool use_rct = fake_outs_count > 0 && use_fork_rules(4, 0);
const bool use_new_fee = use_fork_rules(3, -720 * 14);
const uint64_t fee_per_kb = get_per_kb_fee();
const uint64_t fee_multiplier = get_fee_multiplier(priority, use_new_fee);
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;
// 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);
size_t estimated_rct_tx_size;
if (use_rct)
estimated_rct_tx_size = estimate_rct_tx_size(tx.selected_transfers.size(), fake_outs_count, tx.dsts.size() + 1);
else
estimated_rct_tx_size = tx.selected_transfers.size() * (fake_outs_count+1) * APPROXIMATE_INPUT_BYTES;
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, unlock_time, needed_fee, extra,
test_tx, test_ptx);
else
transfer_selected(tx.dsts, tx.selected_transfers, fake_outs_count, 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, unlock_time, needed_fee, extra,
test_tx, test_ptx);
else
transfer_selected(tx.dsts, tx.selected_transfers, fake_outs_count, 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)
{
epee::json_rpc::request<cryptonote::COMMAND_RPC_HARD_FORK_INFO::request> req_t = AUTO_VAL_INIT(req_t);
epee::json_rpc::response<cryptonote::COMMAND_RPC_HARD_FORK_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 = "hard_fork_info";
req_t.params.version = version;
bool r = net_utils::invoke_http_json_remote_command2(m_daemon_address + "/json_rpc", req_t, resp_t, m_http_client);
m_daemon_rpc_mutex.unlock();
CHECK_AND_ASSERT_THROW_MES(r, "Failed to connect to daemon");
CHECK_AND_ASSERT_THROW_MES(resp_t.result.status != CORE_RPC_STATUS_BUSY, "Failed to connect to daemon");
CHECK_AND_ASSERT_THROW_MES(resp_t.result.status == CORE_RPC_STATUS_OK, "Failed to get hard fork status");
earliest_height = resp_t.result.earliest_height;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::use_fork_rules(uint8_t version, int64_t early_blocks)
{
cryptonote::COMMAND_RPC_GET_HEIGHT::request req = AUTO_VAL_INIT(req);
cryptonote::COMMAND_RPC_GET_HEIGHT::response res = AUTO_VAL_INIT(res);
m_daemon_rpc_mutex.lock();
bool r = net_utils::invoke_http_json_remote_command2(m_daemon_address + "/getheight", req, res, m_http_client);
m_daemon_rpc_mutex.unlock();
CHECK_AND_ASSERT_MES(r, false, "Failed to connect to daemon");
CHECK_AND_ASSERT_MES(res.status != CORE_RPC_STATUS_BUSY, false, "Failed to connect to daemon");
CHECK_AND_ASSERT_MES(res.status == CORE_RPC_STATUS_OK, false, "Failed to get current blockchain height");
uint64_t earliest_height;
get_hard_fork_info(version, earliest_height); // can throw
bool close_enough = res.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_tranaction_size_limit()
{
if (m_upper_transaction_size_limit > 0)
return m_upper_transaction_size_limit;
uint64_t full_reward_zone = use_fork_rules(2, 10) ? CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 : CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1;
return ((full_reward_zone * 125) / 100) - 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.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 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_remote_command2(m_daemon_address + "/json_rpc", req_t, resp_t, m_http_client);
m_daemon_rpc_mutex.unlock();
THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "select_available_unmixable_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);
std::set<uint64_t> mixable;
for (const auto &i: resp_t.result.histogram)
{
mixable.insert(i.amount);
}
return select_available_outputs([mixable, atleast](const transfer_details &td) {
if (td.is_rct())
return false;
const uint64_t amount = 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_remote_command2(m_daemon_address + "/json_rpc", req_t, resp_t, m_http_client);
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(5, 10) ? 4 : 2; // v5 increases min mixin from 2 to 4
return select_available_outputs_from_histogram(min_mixin + 1, false, true, 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(5, 10) ? 4 : 2; // v5 increases min mixin from 2 to 4
return select_available_outputs_from_histogram(min_mixin + 1, 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 bool use_new_fee = use_fork_rules(3, -720 * 14);
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)
{
// XXX: DRY violation. copy-pasted from simplewallet.cpp:get_daemon_blockchain_height()
// consider to move it from simplewallet to wallet2 ?
COMMAND_RPC_GET_HEIGHT::request req;
COMMAND_RPC_GET_HEIGHT::response res = boost::value_initialized<COMMAND_RPC_GET_HEIGHT::response>();
m_daemon_rpc_mutex.lock();
bool ok = net_utils::invoke_http_json_remote_command2(m_daemon_address + "/getheight", req, res, m_http_client);
m_daemon_rpc_mutex.unlock();
// XXX: DRY violation. copy-pasted from simplewallet.cpp:interpret_rpc_response()
if (ok)
{
if (res.status == CORE_RPC_STATUS_BUSY)
{
err = "daemon is busy. Please try again later.";
}
else if (res.status != CORE_RPC_STATUS_OK)
{
err = res.status;
}
else // success, cleaning up error message
{
err = "";
}
}
else
{
err = "possibly lost connection to daemon";
}
return res.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_remote_command2(m_daemon_address + "/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;
}
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);
}
//----------------------------------------------------------------------------------------------------
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
}
tx_extra_pub_key pub_key_field;
THROW_WALLET_EXCEPTION_IF(!find_tx_extra_field_by_type(tx_extra_fields, pub_key_field), error::wallet_internal_error,
"Public key wasn't found in the transaction extra");
crypto::public_key tx_pub_key = pub_key_field.pub_key;
// 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::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(!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_remote_command2(m_daemon_address + "/is_key_image_spent", req, daemon_resp, m_http_client, 200000);
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));
THROW_WALLET_EXCEPTION_IF(!find_tx_extra_field_by_type(tx_extra_fields, pub_key_field), error::wallet_internal_error,
"Public key wasn't found in the transaction extra at index " + boost::lexical_cast<std::string>(i));
cryptonote::generate_key_image_helper(m_account.get_keys(), pub_key_field.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 std::move(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
{
THROW_WALLET_EXCEPTION_IF(ciphertext.size() < sizeof(chacha8_iv),
error::wallet_internal_error, "key_image generated ephemeral public key not matched with output_key");
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() - sizeof(iv) - (authenticated ? sizeof(crypto::signature) : 0));
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() - sizeof(iv), key, iv, &plaintext[0]);
return std::move(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);
}
//----------------------------------------------------------------------------------------------------
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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