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wallet: auto sync outputs and key images in cold signing files

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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.
This commit is contained in:
moneromooo-monero
2016-11-15 21:22:04 +00:00
parent f8066116dd
commit a0131c8be3
4 changed files with 74 additions and 10 deletions
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33
src/wallet/wallet2.cpp
View File

@@ -2953,6 +2953,7 @@ bool wallet2::save_tx(const std::vector<pending_tx>& ptx_vector, const std::stri
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;
@@ -2963,7 +2964,7 @@ bool wallet2::save_tx(const std::vector<pending_tx>& ptx_vector, const std::stri
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::function<bool(const unsigned_tx_set&)> accept_func)
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;
@@ -2998,6 +2999,8 @@ bool wallet2::sign_tx(const std::string &unsigned_filename, const std::string &s
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)
@@ -3043,6 +3046,17 @@ bool wallet2::sign_tx(const std::string &unsigned_filename, const std::string &s
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);
@@ -3092,6 +3106,23 @@ bool wallet2::load_tx(const std::string &signed_filename, std::vector<tools::wal
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;