bba6af9064
This change adds the ability to create a new unsigned transaction from a watch only wallet, and save it to a file. This file can then be moved to another computer/VM where a cold wallet may load it, sign it, and save it. That cold wallet does not need to have a blockchain nor daemon. The signed transaction file can then be moved back to the watch only wallet, which can load it and send it to the daemon. Two new simplewallet commands to use it: sign_transfer (on the cold wallet) submit_transfer (on the watch only wallet) The transfer command used on a watch only wallet now writes an unsigned transaction set in a file called 'unsigned_monero_tx' instead of submitting the tx to the daemon as a normal wallet does. The signed tx file is called 'signed_monero_tx'.
104 lines
3.8 KiB
C++
104 lines
3.8 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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// FIXME: move this into a full wallet2 unit test suite, if possible
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#include "gtest/gtest.h"
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#include "wallet/wallet2.h"
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#include <string>
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static tools::wallet2::transfer_container make_transfers_container(size_t N)
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{
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tools::wallet2::transfer_container transfers;
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for (size_t n = 0; n < N; ++n)
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{
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transfers.push_back(AUTO_VAL_INIT(tools::wallet2::transfer_details()));
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tools::wallet2::transfer_details &td = transfers.back();
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td.m_block_height = 1000;
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td.m_spent = false;
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td.m_txid = cryptonote::null_hash;
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td.m_txid.data[0] = n & 0xff;
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td.m_txid.data[1] = (n >> 8) & 0xff;
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td.m_txid.data[2] = (n >> 16) & 0xff;
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td.m_txid.data[3] = (n >> 24) & 0xff;
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}
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return transfers;
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}
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#define SELECT(idx) \
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do { \
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auto i = std::find(unused_indices.begin(), unused_indices.end(), idx); \
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ASSERT_TRUE(i != unused_indices.end()); \
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unused_indices.erase(i); \
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selected.push_back(idx); \
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} while(0)
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#define PICK(expected) \
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do { \
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size_t idx = w.pop_best_value_from(transfers, unused_indices, selected); \
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ASSERT_EQ(expected, idx); \
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selected.push_back(idx); \
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} while(0)
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TEST(select_outputs, one_out_of_N)
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{
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tools::wallet2 w;
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// check that if there are N-1 outputs of the same height, one of them
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// already selected, the next one selected is the one that's from a
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// different height
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tools::wallet2::transfer_container transfers = make_transfers_container(10);
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transfers[6].m_block_height = 700;
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std::vector<size_t> unused_indices({0, 1, 2, 3, 4, 5, 6, 7, 8, 9});
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std::list<size_t> selected;
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SELECT(2);
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PICK(6);
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}
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TEST(select_outputs, order)
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{
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tools::wallet2 w;
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// check that most unrelated heights are picked in order
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tools::wallet2::transfer_container transfers = make_transfers_container(5);
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transfers[0].m_block_height = 700;
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transfers[1].m_block_height = 700;
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transfers[2].m_block_height = 704;
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transfers[3].m_block_height = 716;
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transfers[4].m_block_height = 701;
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std::vector<size_t> unused_indices({0, 1, 2, 3, 4});
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std::list<size_t> selected;
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SELECT(0);
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PICK(3); // first the one that's far away
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PICK(2); // then the one that's close
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PICK(4); // then the one that's adjacent
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PICK(1); // then the one that's on the same height
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}
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