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Diffstat (limited to 'src/wallet/api/unsigned_transaction.cpp')
| -rw-r--r-- | src/wallet/api/unsigned_transaction.cpp | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/src/wallet/api/unsigned_transaction.cpp b/src/wallet/api/unsigned_transaction.cpp new file mode 100644 index 000000000..84ec2d9d2 --- /dev/null +++ b/src/wallet/api/unsigned_transaction.cpp @@ -0,0 +1,279 @@ +// Copyright (c) 2014-2017, The Monero Project +// +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without modification, are +// permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, this list of +// conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright notice, this list +// of conditions and the following disclaimer in the documentation and/or other +// materials provided with the distribution. +// +// 3. Neither the name of the copyright holder nor the names of its contributors may be +// used to endorse or promote products derived from this software without specific +// prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY +// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL +// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF +// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers + +#include "unsigned_transaction.h" +#include "wallet.h" +#include "common_defines.h" + +#include "cryptonote_core/cryptonote_format_utils.h" +#include "cryptonote_core/cryptonote_basic_impl.h" +#include "cryptonote_core/cryptonote_format_utils.h" + +#include <memory> +#include <vector> +#include <sstream> +#include <boost/format.hpp> + +using namespace std; + +namespace Monero { + +UnsignedTransaction::~UnsignedTransaction() {} + + +UnsignedTransactionImpl::UnsignedTransactionImpl(WalletImpl &wallet) + : m_wallet(wallet) +{ + m_status = Status_Ok; +} + +UnsignedTransactionImpl::~UnsignedTransactionImpl() +{ + LOG_PRINT_L3("Unsigned tx deleted"); +} + +int UnsignedTransactionImpl::status() const +{ + return m_status; +} + +string UnsignedTransactionImpl::errorString() const +{ + return m_errorString; +} + +bool UnsignedTransactionImpl::sign(const std::string &signedFileName) +{ + if(m_wallet.watchOnly()) + { + m_errorString = tr("This is a watch only wallet"); + m_status = Status_Error; + return false; + } + std::vector<tools::wallet2::pending_tx> ptx; + try + { + bool r = m_wallet.m_wallet->sign_tx(m_unsigned_tx_set, signedFileName, ptx); + if (!r) + { + m_errorString = tr("Failed to sign transaction"); + m_status = Status_Error; + return false; + } + } + catch (const std::exception &e) + { + m_errorString = string(tr("Failed to sign transaction")) + e.what(); + m_status = Status_Error; + return false; + } + return true; +} + +//---------------------------------------------------------------------------------------------------- +bool UnsignedTransactionImpl::checkLoadedTx(const std::function<size_t()> get_num_txes, const std::function<const tools::wallet2::tx_construction_data&(size_t)> &get_tx, const std::string &extra_message) +{ + // gather info to ask the user + uint64_t amount = 0, amount_to_dests = 0, change = 0; + size_t min_mixin = ~0; + std::unordered_map<std::string, uint64_t> dests; + const std::string wallet_address = m_wallet.m_wallet->get_account().get_public_address_str(m_wallet.m_wallet->testnet()); + for (size_t n = 0; n < get_num_txes(); ++n) + { + const tools::wallet2::tx_construction_data &cd = get_tx(n); + for (size_t s = 0; s < cd.sources.size(); ++s) + { + amount += cd.sources[s].amount; + size_t mixin = cd.sources[s].outputs.size() - 1; + if (mixin < min_mixin) + min_mixin = mixin; + } + for (size_t d = 0; d < cd.splitted_dsts.size(); ++d) + { + const cryptonote::tx_destination_entry &entry = cd.splitted_dsts[d]; + std::string address = get_account_address_as_str(m_wallet.m_wallet->testnet(), entry.addr); + std::unordered_map<std::string,uint64_t>::iterator i = dests.find(address); + if (i == dests.end()) + dests.insert(std::make_pair(address, entry.amount)); + else + i->second += entry.amount; + amount_to_dests += entry.amount; + } + if (cd.change_dts.amount > 0) + { + std::unordered_map<std::string, uint64_t>::iterator it = dests.find(get_account_address_as_str(m_wallet.m_wallet->testnet(), cd.change_dts.addr)); + if (it == dests.end()) + { + m_status = Status_Error; + m_errorString = tr("Claimed change does not go to a paid address"); + return false; + } + if (it->second < cd.change_dts.amount) + { + m_status = Status_Error; + m_errorString = tr("Claimed change is larger than payment to the change address"); + return false; + } + if (memcmp(&cd.change_dts.addr, &get_tx(0).change_dts.addr, sizeof(cd.change_dts.addr))) + { + m_status = Status_Error; + m_errorString = tr("Change does to more than one address"); + return false; + } + change += cd.change_dts.amount; + it->second -= cd.change_dts.amount; + if (it->second == 0) + dests.erase(get_account_address_as_str(m_wallet.m_wallet->testnet(), cd.change_dts.addr)); + } + } + std::string dest_string; + for (std::unordered_map<std::string, uint64_t>::const_iterator i = dests.begin(); i != dests.end(); ) + { + dest_string += (boost::format(tr("sending %s to %s")) % cryptonote::print_money(i->second) % i->first).str(); + ++i; + if (i != dests.end()) + dest_string += ", "; + } + if (dest_string.empty()) + dest_string = tr("with no destinations"); + + std::string change_string; + if (change > 0) + { + std::string address = get_account_address_as_str(m_wallet.m_wallet->testnet(), get_tx(0).change_dts.addr); + change_string += (boost::format(tr("%s change to %s")) % cryptonote::print_money(change) % address).str(); + } + else + change_string += tr("no change"); + uint64_t fee = amount - amount_to_dests; + m_confirmationMessage = (boost::format(tr("Loaded %lu transactions, for %s, fee %s, %s, %s, with min mixin %lu. %s")) % (unsigned long)get_num_txes() % cryptonote::print_money(amount) % cryptonote::print_money(fee) % dest_string % change_string % (unsigned long)min_mixin % extra_message).str(); + return true; +} + +std::vector<uint64_t> UnsignedTransactionImpl::amount() const +{ + std::vector<uint64_t> result; + for (const auto &utx : m_unsigned_tx_set.txes) { + for (const auto &unsigned_dest : utx.dests) { + result.push_back(unsigned_dest.amount); + } + } + return result; +} + +std::vector<uint64_t> UnsignedTransactionImpl::fee() const +{ + std::vector<uint64_t> result; + for (const auto &utx : m_unsigned_tx_set.txes) { + uint64_t fee = 0; + for (const auto &i: utx.sources) fee += i.amount; + for (const auto &i: utx.splitted_dsts) fee -= i.amount; + result.push_back(fee); + } + return result; +} + +std::vector<uint64_t> UnsignedTransactionImpl::mixin() const +{ + std::vector<uint64_t> result; + for (const auto &utx: m_unsigned_tx_set.txes) { + size_t min_mixin = ~0; + // TODO: Is this loop needed or is sources[0] ? + for (size_t s = 0; s < utx.sources.size(); ++s) { + size_t mixin = utx.sources[s].outputs.size() - 1; + if (mixin < min_mixin) + min_mixin = mixin; + } + result.push_back(min_mixin); + } + return result; +} + +uint64_t UnsignedTransactionImpl::txCount() const +{ + return m_unsigned_tx_set.txes.size(); +} + +std::vector<std::string> UnsignedTransactionImpl::paymentId() const +{ + std::vector<string> result; + for (const auto &utx: m_unsigned_tx_set.txes) { + crypto::hash payment_id = cryptonote::null_hash; + cryptonote::tx_extra_nonce extra_nonce; + std::vector<cryptonote::tx_extra_field> tx_extra_fields; + cryptonote::parse_tx_extra(utx.extra, tx_extra_fields); + if (cryptonote::find_tx_extra_field_by_type(tx_extra_fields, extra_nonce)) + { + crypto::hash8 payment_id8 = cryptonote::null_hash8; + if(cryptonote::get_encrypted_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id8)) + { + // We can't decrypt short pid without recipient key. + memcpy(payment_id.data, payment_id8.data, 8); + } + else if (!cryptonote::get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id)) + { + payment_id = cryptonote::null_hash; + } + } + if(payment_id != cryptonote::null_hash) + result.push_back(epee::string_tools::pod_to_hex(payment_id)); + else + result.push_back(""); + } + return result; +} + +std::vector<std::string> UnsignedTransactionImpl::recipientAddress() const +{ + // TODO: return integrated address if short payment ID exists + std::vector<string> result; + for (const auto &utx: m_unsigned_tx_set.txes) { + result.push_back(cryptonote::get_account_address_as_str(m_wallet.m_wallet->testnet(), utx.dests[0].addr)); + } + return result; +} + +uint64_t UnsignedTransactionImpl::minMixinCount() const +{ + uint64_t min_mixin = ~0; + for (const auto &utx: m_unsigned_tx_set.txes) { + for (size_t s = 0; s < utx.sources.size(); ++s) { + size_t mixin = utx.sources[s].outputs.size() - 1; + if (mixin < min_mixin) + min_mixin = mixin; + } + } + return min_mixin; +} + +} // namespace + +namespace Bitmonero = Monero; + |