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https://github.com/monero-project/monero.git
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11dc091464
This plugs a privacy leak from the wallet to the daemon, as the daemon could previously see what input is included as a transaction input, which the daemon hadn't previously supplied. Now, the wallet requests a particular set of outputs, including the real one. This can result in transactions that can't be accepted if the wallet happens to select too many outputs with non standard unlock times. The daemon could know this and select another output, but the wallet is blind to it. It's currently very unlikely since I don't think anything uses non default unlock times. The wallet requests more outputs than necessary so it can use spares if any of the returns outputs are still locked. If there are not enough spares to reach the desired mixin, the transaction will fail.
699 lines
21 KiB
C++
699 lines
21 KiB
C++
// Copyright (c) 2014-2016, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#include "wallet.h"
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#include "pending_transaction.h"
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#include "transaction_history.h"
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#include "common_defines.h"
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#include "mnemonics/electrum-words.h"
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#include <boost/format.hpp>
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#include <sstream>
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using namespace std;
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using namespace cryptonote;
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namespace Bitmonero {
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namespace {
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// copy-pasted from simplewallet
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static const size_t DEFAULT_MIXIN = 4;
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static const int DEFAULT_REFRESH_INTERVAL_SECONDS = 10;
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}
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struct Wallet2CallbackImpl : public tools::i_wallet2_callback
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{
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Wallet2CallbackImpl()
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: m_listener(nullptr)
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{
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}
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~Wallet2CallbackImpl()
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{
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}
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void setListener(WalletListener * listener)
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{
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m_listener = listener;
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}
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WalletListener * getListener() const
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{
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return m_listener;
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}
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virtual void on_new_block(uint64_t height, const cryptonote::block& block)
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{
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// TODO;
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LOG_PRINT_L3(__FUNCTION__ << ": new block. height: " << height);
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}
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virtual void on_money_received(uint64_t height, const cryptonote::transaction& tx, size_t out_index)
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{
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std::string tx_hash = epee::string_tools::pod_to_hex(get_transaction_hash(tx));
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uint64_t amount = tx.vout[out_index].amount;
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LOG_PRINT_L3(__FUNCTION__ << ": money received. height: " << height
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<< ", tx: " << tx_hash
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<< ", amount: " << print_money(amount));
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if (m_listener) {
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m_listener->moneyReceived(tx_hash, amount);
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m_listener->updated();
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}
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}
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virtual void on_money_spent(uint64_t height, const cryptonote::transaction& in_tx, size_t out_index,
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const cryptonote::transaction& spend_tx)
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{
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// TODO;
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std::string tx_hash = epee::string_tools::pod_to_hex(get_transaction_hash(spend_tx));
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uint64_t amount = in_tx.vout[out_index].amount;
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LOG_PRINT_L3(__FUNCTION__ << ": money spent. height: " << height
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<< ", tx: " << tx_hash
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<< ", amount: " << print_money(amount));
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if (m_listener) {
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m_listener->moneySpent(tx_hash, amount);
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m_listener->updated();
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}
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}
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virtual void on_skip_transaction(uint64_t height, const cryptonote::transaction& tx)
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{
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// TODO;
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}
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WalletListener * m_listener;
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};
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Wallet::~Wallet() {}
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WalletListener::~WalletListener() {}
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string Wallet::displayAmount(uint64_t amount)
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{
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return cryptonote::print_money(amount);
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}
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uint64_t Wallet::amountFromString(const string &amount)
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{
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uint64_t result;
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cryptonote::parse_amount(result, amount);
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return result;
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}
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uint64_t Wallet::amountFromDouble(double amount)
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{
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std::stringstream ss;
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ss << std::fixed << std::setprecision(CRYPTONOTE_DISPLAY_DECIMAL_POINT) << amount;
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return amountFromString(ss.str());
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}
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std::string Wallet::genPaymentId()
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{
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crypto::hash8 payment_id = crypto::rand<crypto::hash8>();
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return epee::string_tools::pod_to_hex(payment_id);
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}
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bool Wallet::paymentIdValid(const string &paiment_id)
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{
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crypto::hash8 pid;
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return tools::wallet2::parse_short_payment_id(paiment_id, pid);
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}
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///////////////////////// WalletImpl implementation ////////////////////////
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WalletImpl::WalletImpl(bool testnet)
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:m_wallet(nullptr), m_status(Wallet::Status_Ok), m_trustedDaemon(false),
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m_wallet2Callback(nullptr)
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{
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m_wallet = new tools::wallet2(testnet);
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m_history = new TransactionHistoryImpl(this);
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m_wallet2Callback = new Wallet2CallbackImpl;
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m_wallet->callback(m_wallet2Callback);
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m_refreshThreadDone = false;
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m_refreshEnabled = false;
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m_refreshIntervalSeconds = DEFAULT_REFRESH_INTERVAL_SECONDS;
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m_refreshThread = std::thread([this] () {
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this->refreshThreadFunc();
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});
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}
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WalletImpl::~WalletImpl()
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{
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stopRefresh();
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delete m_history;
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delete m_wallet;
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delete m_wallet2Callback;
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}
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bool WalletImpl::create(const std::string &path, const std::string &password, const std::string &language)
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{
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clearStatus();
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bool keys_file_exists;
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bool wallet_file_exists;
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tools::wallet2::wallet_exists(path, keys_file_exists, wallet_file_exists);
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// TODO: figure out how to setup logger;
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LOG_PRINT_L3("wallet_path: " << path << "");
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LOG_PRINT_L3("keys_file_exists: " << std::boolalpha << keys_file_exists << std::noboolalpha
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<< " wallet_file_exists: " << std::boolalpha << wallet_file_exists << std::noboolalpha);
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// add logic to error out if new wallet requested but named wallet file exists
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if (keys_file_exists || wallet_file_exists) {
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m_errorString = "attempting to generate or restore wallet, but specified file(s) exist. Exiting to not risk overwriting.";
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LOG_ERROR(m_errorString);
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m_status = Status_Error;
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return false;
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}
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// TODO: validate language
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m_wallet->set_seed_language(language);
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crypto::secret_key recovery_val, secret_key;
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try {
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recovery_val = m_wallet->generate(path, password, secret_key, false, false);
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m_password = password;
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m_status = Status_Ok;
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} catch (const std::exception &e) {
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LOG_ERROR("Error creating wallet: " << e.what());
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m_status = Status_Error;
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m_errorString = e.what();
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return false;
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}
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return true;
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}
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bool WalletImpl::open(const std::string &path, const std::string &password)
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{
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clearStatus();
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try {
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// TODO: handle "deprecated"
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m_wallet->load(path, password);
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m_password = password;
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} catch (const std::exception &e) {
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LOG_ERROR("Error opening wallet: " << e.what());
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m_status = Status_Error;
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m_errorString = e.what();
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}
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return m_status == Status_Ok;
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}
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bool WalletImpl::recover(const std::string &path, const std::string &seed)
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{
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clearStatus();
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m_errorString.clear();
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if (seed.empty()) {
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m_errorString = "Electrum seed is empty";
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LOG_ERROR(m_errorString);
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m_status = Status_Error;
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return false;
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}
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crypto::secret_key recovery_key;
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std::string old_language;
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if (!crypto::ElectrumWords::words_to_bytes(seed, recovery_key, old_language)) {
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m_errorString = "Electrum-style word list failed verification";
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m_status = Status_Error;
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return false;
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}
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try {
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m_wallet->set_seed_language(old_language);
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m_wallet->generate(path, "", recovery_key, true, false);
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// TODO: wallet->init(daemon_address);
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} catch (const std::exception &e) {
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m_status = Status_Error;
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m_errorString = e.what();
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}
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return m_status == Status_Ok;
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}
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bool WalletImpl::close()
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{
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clearStatus();
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bool result = false;
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try {
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// LOG_PRINT_L0("Calling wallet::store...");
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m_wallet->store();
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// LOG_PRINT_L0("wallet::store done");
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// LOG_PRINT_L0("Calling wallet::stop...");
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m_wallet->stop();
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// LOG_PRINT_L0("wallet::stop done");
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result = true;
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} catch (const std::exception &e) {
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m_status = Status_Error;
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m_errorString = e.what();
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LOG_ERROR("Error closing wallet: " << e.what());
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}
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return result;
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}
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std::string WalletImpl::seed() const
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{
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std::string seed;
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if (m_wallet)
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m_wallet->get_seed(seed);
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return seed;
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}
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std::string WalletImpl::getSeedLanguage() const
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{
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return m_wallet->get_seed_language();
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}
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void WalletImpl::setSeedLanguage(const std::string &arg)
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{
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m_wallet->set_seed_language(arg);
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}
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int WalletImpl::status() const
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{
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return m_status;
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}
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std::string WalletImpl::errorString() const
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{
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return m_errorString;
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}
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bool WalletImpl::setPassword(const std::string &password)
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{
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clearStatus();
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try {
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m_wallet->rewrite(m_wallet->get_wallet_file(), password);
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m_password = password;
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} catch (const std::exception &e) {
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m_status = Status_Error;
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m_errorString = e.what();
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}
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return m_status == Status_Ok;
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}
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std::string WalletImpl::address() const
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{
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return m_wallet->get_account().get_public_address_str(m_wallet->testnet());
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}
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std::string WalletImpl::integratedAddress(const std::string &payment_id) const
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{
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crypto::hash8 pid;
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if (!tools::wallet2::parse_short_payment_id(payment_id, pid)) {
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pid = crypto::rand<crypto::hash8>();
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}
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return m_wallet->get_account().get_public_integrated_address_str(pid, m_wallet->testnet());
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}
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bool WalletImpl::store(const std::string &path)
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{
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clearStatus();
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try {
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if (path.empty()) {
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m_wallet->store();
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} else {
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m_wallet->store_to(path, m_password);
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}
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} catch (const std::exception &e) {
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LOG_ERROR("Error storing wallet: " << e.what());
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m_status = Status_Error;
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m_errorString = e.what();
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}
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return m_status == Status_Ok;
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}
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string WalletImpl::filename() const
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{
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return m_wallet->get_wallet_file();
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}
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string WalletImpl::keysFilename() const
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{
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return m_wallet->get_keys_file();
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}
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bool WalletImpl::init(const std::string &daemon_address, uint64_t upper_transaction_size_limit)
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{
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clearStatus();
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m_wallet->init(daemon_address, upper_transaction_size_limit);
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if (Utils::isAddressLocal(daemon_address)) {
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this->setTrustedDaemon(true);
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}
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bool result = this->refresh();
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// enabling background refresh thread
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startRefresh();
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return result;
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}
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void WalletImpl::initAsync(const string &daemon_address, uint64_t upper_transaction_size_limit)
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{
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clearStatus();
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m_wallet->init(daemon_address, upper_transaction_size_limit);
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if (Utils::isAddressLocal(daemon_address)) {
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this->setTrustedDaemon(true);
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}
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startRefresh();
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}
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uint64_t WalletImpl::balance() const
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{
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return m_wallet->balance();
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}
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uint64_t WalletImpl::unlockedBalance() const
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{
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return m_wallet->unlocked_balance();
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}
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bool WalletImpl::refresh()
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{
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clearStatus();
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doRefresh();
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return m_status == Status_Ok;
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}
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void WalletImpl::refreshAsync()
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{
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LOG_PRINT_L3(__FUNCTION__ << ": Refreshing asyncronously..");
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clearStatus();
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m_refreshCV.notify_one();
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}
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// TODO:
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// 1 - properly handle payment id (add another menthod with explicit 'payment_id' param)
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// 2 - check / design how "Transaction" can be single interface
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// (instead of few different data structures within wallet2 implementation:
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// - pending_tx;
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// - transfer_details;
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// - payment_details;
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// - unconfirmed_transfer_details;
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// - confirmed_transfer_details)
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PendingTransaction *WalletImpl::createTransaction(const string &dst_addr, const string &payment_id, uint64_t amount, uint32_t mixin_count,
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PendingTransaction::Priority priority)
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{
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clearStatus();
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vector<cryptonote::tx_destination_entry> dsts;
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cryptonote::tx_destination_entry de;
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// indicates if dst_addr is integrated address (address + payment_id)
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bool has_payment_id;
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crypto::hash8 payment_id_short;
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// TODO: (https://bitcointalk.org/index.php?topic=753252.msg9985441#msg9985441)
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size_t fake_outs_count = mixin_count > 0 ? mixin_count : m_wallet->default_mixin();
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if (fake_outs_count == 0)
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fake_outs_count = DEFAULT_MIXIN;
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PendingTransactionImpl * transaction = new PendingTransactionImpl(*this);
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do {
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if(!cryptonote::get_account_integrated_address_from_str(de.addr, has_payment_id, payment_id_short, m_wallet->testnet(), dst_addr)) {
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// TODO: copy-paste 'if treating as an address fails, try as url' from simplewallet.cpp:1982
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m_status = Status_Error;
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m_errorString = "Invalid destination address";
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break;
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}
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std::vector<uint8_t> extra;
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// if dst_addr is not an integrated address, parse payment_id
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if (!has_payment_id && !payment_id.empty()) {
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// copy-pasted from simplewallet.cpp:2212
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crypto::hash payment_id_long;
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bool r = tools::wallet2::parse_long_payment_id(payment_id, payment_id_long);
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if (r) {
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std::string extra_nonce;
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cryptonote::set_payment_id_to_tx_extra_nonce(extra_nonce, payment_id_long);
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r = add_extra_nonce_to_tx_extra(extra, extra_nonce);
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} else {
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r = tools::wallet2::parse_short_payment_id(payment_id, payment_id_short);
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if (r) {
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std::string extra_nonce;
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set_encrypted_payment_id_to_tx_extra_nonce(extra_nonce, payment_id_short);
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r = add_extra_nonce_to_tx_extra(extra, extra_nonce);
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}
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}
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if (!r) {
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m_status = Status_Error;
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m_errorString = tr("payment id has invalid format, expected 16 or 64 character hex string: ") + payment_id;
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break;
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}
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}
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de.amount = amount;
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if (de.amount <= 0) {
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m_status = Status_Error;
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m_errorString = "Invalid amount";
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break;
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}
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dsts.push_back(de);
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//std::vector<tools::wallet2::pending_tx> ptx_vector;
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try {
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// priority called "fee_multiplied in terms of underlying wallet interface
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transaction->m_pending_tx = m_wallet->create_transactions_2(dsts, fake_outs_count, 0 /* unlock_time */,
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static_cast<uint64_t>(priority),
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extra, m_trustedDaemon);
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} catch (const tools::error::daemon_busy&) {
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// TODO: make it translatable with "tr"?
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m_errorString = tr("daemon is busy. Please try again later.");
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m_status = Status_Error;
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} catch (const tools::error::no_connection_to_daemon&) {
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m_errorString = tr("no connection to daemon. Please make sure daemon is running.");
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m_status = Status_Error;
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} catch (const tools::error::wallet_rpc_error& e) {
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m_errorString = tr("RPC error: ") + e.to_string();
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m_status = Status_Error;
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} catch (const tools::error::get_random_outs_error&) {
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m_errorString = tr("failed to get random outputs to mix");
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m_status = Status_Error;
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} catch (const tools::error::not_enough_money& e) {
|
|
m_status = Status_Error;
|
|
std::ostringstream writer;
|
|
|
|
writer << boost::format(tr("not enough money to transfer, available only %s, transaction amount %s = %s + %s (fee)")) %
|
|
print_money(e.available()) %
|
|
print_money(e.tx_amount() + e.fee()) %
|
|
print_money(e.tx_amount()) %
|
|
print_money(e.fee());
|
|
m_errorString = writer.str();
|
|
|
|
} catch (const tools::error::not_enough_outs_to_mix& e) {
|
|
std::ostringstream writer;
|
|
writer << tr("not enough outputs for specified mixin_count") << " = " << e.mixin_count() << ":";
|
|
for (const std::pair<uint64_t, uint64_t> outs_for_amount : e.scanty_outs()) {
|
|
writer << "\n" << tr("output amount") << " = " << print_money(outs_for_amount.first) << ", " << tr("found outputs to mix") << " = " << outs_for_amount.second;
|
|
}
|
|
m_errorString = writer.str();
|
|
m_status = Status_Error;
|
|
} catch (const tools::error::tx_not_constructed&) {
|
|
m_errorString = tr("transaction was not constructed");
|
|
m_status = Status_Error;
|
|
} catch (const tools::error::tx_rejected& e) {
|
|
std::ostringstream writer;
|
|
writer << (boost::format(tr("transaction %s was rejected by daemon with status: ")) % get_transaction_hash(e.tx())) << e.status();
|
|
m_errorString = writer.str();
|
|
m_status = Status_Error;
|
|
} catch (const tools::error::tx_sum_overflow& e) {
|
|
m_errorString = e.what();
|
|
m_status = Status_Error;
|
|
} catch (const tools::error::zero_destination&) {
|
|
m_errorString = tr("one of destinations is zero");
|
|
m_status = Status_Error;
|
|
} catch (const tools::error::tx_too_big& e) {
|
|
m_errorString = tr("failed to find a suitable way to split transactions");
|
|
m_status = Status_Error;
|
|
} catch (const tools::error::transfer_error& e) {
|
|
m_errorString = string(tr("unknown transfer error: ")) + e.what();
|
|
m_status = Status_Error;
|
|
} catch (const tools::error::wallet_internal_error& e) {
|
|
m_errorString = string(tr("internal error: ")) + e.what();
|
|
m_status = Status_Error;
|
|
} catch (const std::exception& e) {
|
|
m_errorString = string(tr("unexpected error: ")) + e.what();
|
|
m_status = Status_Error;
|
|
} catch (...) {
|
|
m_errorString = tr("unknown error");
|
|
m_status = Status_Error;
|
|
}
|
|
} while (false);
|
|
|
|
transaction->m_status = m_status;
|
|
transaction->m_errorString = m_errorString;
|
|
return transaction;
|
|
}
|
|
|
|
void WalletImpl::disposeTransaction(PendingTransaction *t)
|
|
{
|
|
delete t;
|
|
}
|
|
|
|
TransactionHistory *WalletImpl::history() const
|
|
{
|
|
return m_history;
|
|
}
|
|
|
|
void WalletImpl::setListener(WalletListener *l)
|
|
{
|
|
// TODO thread synchronization;
|
|
m_wallet2Callback->setListener(l);
|
|
}
|
|
|
|
uint32_t WalletImpl::defaultMixin() const
|
|
{
|
|
return m_wallet->default_mixin();
|
|
}
|
|
|
|
void WalletImpl::setDefaultMixin(uint32_t arg)
|
|
{
|
|
m_wallet->default_mixin(arg);
|
|
}
|
|
|
|
|
|
bool WalletImpl::connectToDaemon()
|
|
{
|
|
bool result = m_wallet->check_connection();
|
|
m_status = result ? Status_Ok : Status_Error;
|
|
if (!result) {
|
|
m_errorString = "Error connecting to daemon at " + m_wallet->get_daemon_address();
|
|
} else {
|
|
// start refreshing here
|
|
}
|
|
return result;
|
|
}
|
|
|
|
bool WalletImpl::connected() const
|
|
{
|
|
return m_wallet->check_connection();
|
|
}
|
|
|
|
void WalletImpl::setTrustedDaemon(bool arg)
|
|
{
|
|
m_trustedDaemon = arg;
|
|
}
|
|
|
|
bool WalletImpl::trustedDaemon() const
|
|
{
|
|
return m_trustedDaemon;
|
|
}
|
|
|
|
void WalletImpl::clearStatus()
|
|
{
|
|
m_status = Status_Ok;
|
|
m_errorString.clear();
|
|
}
|
|
|
|
void WalletImpl::refreshThreadFunc()
|
|
{
|
|
LOG_PRINT_L3(__FUNCTION__ << ": starting refresh thread");
|
|
|
|
while (true) {
|
|
std::unique_lock<std::mutex> lock(m_refreshMutex);
|
|
if (m_refreshThreadDone) {
|
|
break;
|
|
}
|
|
LOG_PRINT_L3(__FUNCTION__ << ": waiting for refresh...");
|
|
m_refreshCV.wait_for(lock, std::chrono::seconds(m_refreshIntervalSeconds));
|
|
LOG_PRINT_L3(__FUNCTION__ << ": refresh lock acquired...");
|
|
LOG_PRINT_L3(__FUNCTION__ << ": m_refreshEnabled: " << m_refreshEnabled);
|
|
LOG_PRINT_L3(__FUNCTION__ << ": m_status: " << m_status);
|
|
if (m_refreshEnabled /*&& m_status == Status_Ok*/) {
|
|
LOG_PRINT_L3(__FUNCTION__ << ": refreshing...");
|
|
doRefresh();
|
|
}
|
|
}
|
|
LOG_PRINT_L3(__FUNCTION__ << ": refresh thread stopped");
|
|
}
|
|
|
|
void WalletImpl::doRefresh()
|
|
{
|
|
// synchronizing async and sync refresh calls
|
|
std::lock_guard<std::mutex> guarg(m_refreshMutex2);
|
|
try {
|
|
m_wallet->refresh();
|
|
} catch (const std::exception &e) {
|
|
m_status = Status_Error;
|
|
m_errorString = e.what();
|
|
}
|
|
if (m_wallet2Callback->getListener()) {
|
|
m_wallet2Callback->getListener()->refreshed();
|
|
}
|
|
}
|
|
|
|
|
|
void WalletImpl::startRefresh()
|
|
{
|
|
if (!m_refreshEnabled) {
|
|
m_refreshEnabled = true;
|
|
m_refreshCV.notify_one();
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void WalletImpl::stopRefresh()
|
|
{
|
|
if (!m_refreshThreadDone) {
|
|
m_refreshEnabled = false;
|
|
m_refreshThreadDone = true;
|
|
m_refreshThread.join();
|
|
}
|
|
}
|
|
|
|
void WalletImpl::pauseRefresh()
|
|
{
|
|
// TODO synchronize access
|
|
if (!m_refreshThreadDone) {
|
|
m_refreshEnabled = false;
|
|
}
|
|
}
|
|
|
|
|
|
} // namespace
|