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wallet2: decrease the amount of data exchanged for output export

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This commit is contained in:
moneromooo-monero 2022-02-11 18:43:14 +00:00
parent d562deaaa9
commit ae0a840fda
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GPG Key ID: 686F07454D6CEFC3
2 changed files with 167 additions and 10 deletions
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130
src/wallet/wallet2.cpp
View File

@ -6429,7 +6429,7 @@ std::string wallet2::dump_tx_to_str(const std::vector<pending_tx> &ptx_vector) c
txs.txes.push_back(get_construction_data_with_decrypted_short_payment_id(tx, m_account.get_device()));
}
txs.transfers = export_outputs();
txs.new_transfers = export_outputs();
// save as binary
std::ostringstream oss;
binary_archive<true> ar(oss);
@ -6570,6 +6570,9 @@ bool wallet2::sign_tx(const std::string &unsigned_filename, const std::string &s
//----------------------------------------------------------------------------------------------------
bool wallet2::sign_tx(unsigned_tx_set &exported_txs, std::vector<wallet2::pending_tx> &txs, signed_tx_set &signed_txes)
{
if (!exported_txs.new_transfers.second.empty())
import_outputs(exported_txs.new_transfers);
else
import_outputs(exported_txs.transfers);
// sign the transactions
@ -12840,10 +12843,10 @@ void wallet2::import_blockchain(const std::tuple<size_t, crypto::hash, std::vect
m_last_block_reward = cryptonote::get_outs_money_amount(genesis.miner_tx);
}
//----------------------------------------------------------------------------------------------------
std::pair<uint64_t, std::vector<tools::wallet2::transfer_details>> wallet2::export_outputs(bool all) const
std::pair<uint64_t, std::vector<tools::wallet2::exported_transfer_details>> wallet2::export_outputs(bool all) const
{
PERF_TIMER(export_outputs);
std::vector<tools::wallet2::transfer_details> outs;
std::vector<tools::wallet2::exported_transfer_details> outs;
size_t offset = 0;
if (!all)
@ -12855,7 +12858,22 @@ std::pair<uint64_t, std::vector<tools::wallet2::transfer_details>> wallet2::expo
{
const transfer_details &td = m_transfers[n];
outs.push_back(td);
exported_transfer_details etd;
etd.m_pubkey = td.get_public_key();
etd.m_tx_pubkey = get_tx_pub_key_from_extra(td.m_tx, td.m_pk_index);
etd.m_internal_output_index = td.m_internal_output_index;
etd.m_global_output_index = td.m_global_output_index;
etd.m_flags.flags = 0;
etd.m_flags.m_spent = td.m_spent;
etd.m_flags.m_frozen = td.m_frozen;
etd.m_flags.m_rct = td.m_rct;
etd.m_flags.m_key_image_known = td.m_key_image_known;
etd.m_flags.m_key_image_request = td.m_key_image_request;
etd.m_flags.m_key_image_partial = td.m_key_image_partial;
etd.m_amount = td.m_amount;
etd.m_additional_tx_keys = get_additional_tx_pub_keys_from_extra(td.m_tx);
outs.push_back(etd);
}
return std::make_pair(offset, outs);
@ -12948,6 +12966,93 @@ process:
return m_transfers.size();
}
//----------------------------------------------------------------------------------------------------
size_t wallet2::import_outputs(const std::pair<uint64_t, std::vector<tools::wallet2::exported_transfer_details>> &outputs)
{
PERF_TIMER(import_outputs);
THROW_WALLET_EXCEPTION_IF(outputs.first > m_transfers.size(), error::wallet_internal_error,
"Imported outputs omit more outputs that we know of. Try using export_outputs all.");
const size_t offset = outputs.first;
const size_t original_size = m_transfers.size();
m_transfers.resize(offset + outputs.second.size());
for (size_t i = 0; i < offset; ++i)
m_transfers[i].m_key_image_request = false;
for (size_t i = 0; i < outputs.second.size(); ++i)
{
exported_transfer_details etd = outputs.second[i];
transfer_details &td = m_transfers[i + offset];
// setup td with "cheao" loaded data
td.m_block_height = 0;
td.m_txid = crypto::null_hash;
td.m_global_output_index = etd.m_global_output_index;
td.m_spent = etd.m_flags.m_spent;
td.m_frozen = etd.m_flags.m_frozen;
td.m_spent_height = 0;
td.m_mask = rct::identity();
td.m_amount = etd.m_amount;
td.m_rct = etd.m_flags.m_rct;
td.m_key_image_known = etd.m_flags.m_key_image_known;
td.m_key_image_request = etd.m_flags.m_key_image_request;
td.m_key_image_partial = false;
// skip those we've already imported, or which have different data
if (i + offset < original_size)
{
bool needs_processing = false;
if (!td.m_key_image_known)
needs_processing = true;
else if (!(etd.m_internal_output_index == td.m_internal_output_index))
needs_processing = true;
else if (!(etd.m_pubkey == td.get_public_key()))
needs_processing = true;
if (!needs_processing)
continue;
}
// construct a synthetix tx prefix that has the info we'll need: the output with its pubkey, the tx pubkey in extra
td.m_tx = {};
THROW_WALLET_EXCEPTION_IF(etd.m_internal_output_index >= 65536, error::wallet_internal_error, "internal output index seems outrageously high, rejecting");
td.m_internal_output_index = etd.m_internal_output_index;
cryptonote::txout_to_key tk;
tk.key = etd.m_pubkey;
cryptonote::tx_out out;
out.amount = etd.m_amount;
out.target = tk;
td.m_tx.vout.resize(etd.m_internal_output_index);
td.m_tx.vout.push_back(out);
td.m_pk_index = 0;
add_tx_pub_key_to_extra(td.m_tx, etd.m_tx_pubkey);
if (!etd.m_additional_tx_keys.empty())
add_additional_tx_pub_keys_to_extra(td.m_tx.extra, etd.m_additional_tx_keys);
// the hot wallet wouldn't have known about key images (except if we already exported them)
cryptonote::keypair in_ephemeral;
const crypto::public_key &tx_pub_key = etd.m_tx_pubkey;
const std::vector<crypto::public_key> &additional_tx_pub_keys = etd.m_additional_tx_keys;
const crypto::public_key& out_key = etd.m_pubkey;
bool r = cryptonote::generate_key_image_helper(m_account.get_keys(), m_subaddresses, out_key, tx_pub_key, additional_tx_pub_keys, td.m_internal_output_index, in_ephemeral, td.m_key_image, m_account.get_device());
THROW_WALLET_EXCEPTION_IF(!r, error::wallet_internal_error, "Failed to generate key image");
if (should_expand(td.m_subaddr_index))
expand_subaddresses(td.m_subaddr_index);
td.m_key_image_known = true;
td.m_key_image_request = true;
td.m_key_image_partial = false;
THROW_WALLET_EXCEPTION_IF(in_ephemeral.pub != out_key,
error::wallet_internal_error, "key_image generated ephemeral public key not matched with output_key at index " + boost::lexical_cast<std::string>(i + offset));
m_key_images[td.m_key_image] = i + offset;
m_pub_keys[td.get_public_key()] = i + offset;
}
return m_transfers.size();
}
//----------------------------------------------------------------------------------------------------
size_t wallet2::import_outputs_from_str(const std::string &outputs_st)
{
PERF_TIMER(import_outputs_from_str);
@ -12986,8 +13091,21 @@ size_t wallet2::import_outputs_from_str(const std::string &outputs_st)
try
{
std::string body(data, headerlen);
std::pair<uint64_t, std::vector<tools::wallet2::transfer_details>> outputs;
std::pair<uint64_t, std::vector<tools::wallet2::exported_transfer_details>> new_outputs;
try
{
binary_archive<false> ar{epee::strspan<std::uint8_t>(body)};
if (::serialization::serialize(ar, new_outputs))
if (::serialization::check_stream_state(ar))
loaded = true;
}
catch (...) {}
if (!loaded)
new_outputs.second.clear();
std::pair<uint64_t, std::vector<tools::wallet2::transfer_details>> outputs;
if (!loaded) try
{
binary_archive<false> ar{epee::strspan<std::uint8_t>(body)};
if (::serialization::serialize(ar, outputs))
@ -13015,7 +13133,7 @@ size_t wallet2::import_outputs_from_str(const std::string &outputs_st)
outputs.second = {};
}
imported_outputs = import_outputs(outputs);
imported_outputs = new_outputs.second.empty() ? import_outputs(outputs) : import_outputs(new_outputs);
}
catch (const std::exception &e)
{

43
src/wallet/wallet2.h
View File

@ -373,6 +373,40 @@ private:
END_SERIALIZE()
};
struct exported_transfer_details
{
crypto::public_key m_pubkey;
uint64_t m_internal_output_index;
uint64_t m_global_output_index;
crypto::public_key m_tx_pubkey;
union
{
struct
{
uint8_t m_spent: 1;
uint8_t m_frozen: 1;
uint8_t m_rct: 1;
uint8_t m_key_image_known: 1;
uint8_t m_key_image_request: 1; // view wallets: we want to request it; cold wallets: it was requested
uint8_t m_key_image_partial: 1;
};
uint8_t flags;
} m_flags;
uint64_t m_amount;
std::vector<crypto::public_key> m_additional_tx_keys;
BEGIN_SERIALIZE_OBJECT()
VERSION_FIELD(0)
FIELD(m_pubkey)
VARINT_FIELD(m_internal_output_index)
VARINT_FIELD(m_global_output_index)
FIELD(m_tx_pubkey)
FIELD(m_flags.flags)
VARINT_FIELD(m_amount)
FIELD(m_additional_tx_keys)
END_SERIALIZE()
};
typedef std::vector<uint64_t> amounts_container;
struct payment_details
{
@ -575,10 +609,14 @@ private:
{
std::vector<tx_construction_data> txes;
std::pair<size_t, wallet2::transfer_container> transfers;
std::pair<size_t, std::vector<wallet2::exported_transfer_details>> new_transfers;
BEGIN_SERIALIZE_OBJECT()
VERSION_FIELD(0)
VERSION_FIELD(1)
FIELD(txes)
if (version >= 1)
FIELD(new_transfers)
else
FIELD(transfers)
END_SERIALIZE()
};
@ -1347,8 +1385,9 @@ private:
bool verify_with_public_key(const std::string &data, const crypto::public_key &public_key, const std::string &signature) const;
// Import/Export wallet data
std::pair<uint64_t, std::vector<tools::wallet2::transfer_details>> export_outputs(bool all = false) const;
std::pair<uint64_t, std::vector<tools::wallet2::exported_transfer_details>> export_outputs(bool all = false) const;
std::string export_outputs_to_str(bool all = false) const;
size_t import_outputs(const std::pair<uint64_t, std::vector<tools::wallet2::exported_transfer_details>> &outputs);
size_t import_outputs(const std::pair<uint64_t, std::vector<tools::wallet2::transfer_details>> &outputs);
size_t import_outputs_from_str(const std::string &outputs_st);
payment_container export_payments() const;