From ccf53a566c1c2e980ed30a7371b8789ffb4c01a7 Mon Sep 17 00:00:00 2001 From: moneromooo-monero Date: Fri, 22 Sep 2017 13:57:20 +0100 Subject: [PATCH] track double spending in the txpool Transactions in the txpool are marked when another transaction is seen double spending one or more of its inputs. This is then exposed wherever appropriate. Note that being marked with this "double spend seen" flag does NOT mean this transaction IS a double spend and will never be mined: it just means that the network has seen at least another transaction spending at least one of the same inputs, so care should be taken to wait for a few confirmations before acting upon that transaction (ie, mostly of use for merchants wanting to accept unconfirmed transactions). --- src/blockchain_db/blockchain_db.h | 3 +- src/cryptonote_core/blockchain.cpp | 12 ++-- src/cryptonote_core/tx_pool.cpp | 48 ++++++++++++- src/cryptonote_core/tx_pool.h | 10 ++- src/daemon/rpc_command_executor.cpp | 4 +- src/rpc/core_rpc_server.cpp | 37 ++++++++-- src/rpc/core_rpc_server_commands_defs.h | 8 +++ src/rpc/message_data_structs.h | 1 + src/serialization/json_object.cpp | 2 + src/simplewallet/simplewallet.cpp | 19 ++++-- src/wallet/api/transaction_history.cpp | 6 +- src/wallet/wallet2.cpp | 71 +++++++++++++------- src/wallet/wallet2.h | 39 +++++++++-- src/wallet/wallet_rpc_server.cpp | 14 ++-- src/wallet/wallet_rpc_server.h | 2 +- src/wallet/wallet_rpc_server_commands_defs.h | 2 + 16 files changed, 216 insertions(+), 62 deletions(-) diff --git a/src/blockchain_db/blockchain_db.h b/src/blockchain_db/blockchain_db.h index 838385e8a..ca097fad2 100644 --- a/src/blockchain_db/blockchain_db.h +++ b/src/blockchain_db/blockchain_db.h @@ -147,8 +147,9 @@ struct txpool_tx_meta_t uint8_t kept_by_block; uint8_t relayed; uint8_t do_not_relay; + uint8_t double_spend_seen: 1; - uint8_t padding[77]; // till 192 bytes + uint8_t padding[76]; // till 192 bytes }; #define DBF_SAFE 1 diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp index 9d89c6280..0296b4908 100644 --- a/src/cryptonote_core/blockchain.cpp +++ b/src/cryptonote_core/blockchain.cpp @@ -3166,9 +3166,9 @@ bool Blockchain::flush_txes_from_pool(const std::list &txids) cryptonote::transaction tx; size_t blob_size; uint64_t fee; - bool relayed, do_not_relay; + bool relayed, do_not_relay, double_spend_seen; MINFO("Removing txid " << txid << " from the pool"); - if(m_tx_pool.have_tx(txid) && !m_tx_pool.take_tx(txid, tx, blob_size, fee, relayed, do_not_relay)) + if(m_tx_pool.have_tx(txid) && !m_tx_pool.take_tx(txid, tx, blob_size, fee, relayed, do_not_relay, double_spend_seen)) { MERROR("Failed to remove txid " << txid << " from the pool"); res = false; @@ -3351,7 +3351,7 @@ leave: transaction tx; size_t blob_size = 0; uint64_t fee = 0; - bool relayed = false, do_not_relay = false; + bool relayed = false, do_not_relay = false, double_spend_seen = false; TIME_MEASURE_START(aa); // XXX old code does not check whether tx exists @@ -3368,7 +3368,7 @@ leave: TIME_MEASURE_START(bb); // get transaction with hash from tx_pool - if(!m_tx_pool.take_tx(tx_id, tx, blob_size, fee, relayed, do_not_relay)) + if(!m_tx_pool.take_tx(tx_id, tx, blob_size, fee, relayed, do_not_relay, double_spend_seen)) { MERROR_VER("Block with id: " << id << " has at least one unknown transaction with id: " << tx_id); bvc.m_verifivation_failed = true; @@ -4381,12 +4381,12 @@ void Blockchain::load_compiled_in_block_hashes() size_t blob_size; uint64_t fee; - bool relayed, do_not_relay; + bool relayed, do_not_relay, double_spend_seen; transaction pool_tx; for(const transaction &tx : txs) { crypto::hash tx_hash = get_transaction_hash(tx); - m_tx_pool.take_tx(tx_hash, pool_tx, blob_size, fee, relayed, do_not_relay); + m_tx_pool.take_tx(tx_hash, pool_tx, blob_size, fee, relayed, do_not_relay, double_spend_seen); } } } diff --git a/src/cryptonote_core/tx_pool.cpp b/src/cryptonote_core/tx_pool.cpp index 9071c330c..40691f6a3 100644 --- a/src/cryptonote_core/tx_pool.cpp +++ b/src/cryptonote_core/tx_pool.cpp @@ -187,6 +187,7 @@ namespace cryptonote { if(have_tx_keyimges_as_spent(tx)) { + mark_double_spend(tx); LOG_PRINT_L1("Transaction with id= "<< id << " used already spent key images"); tvc.m_verifivation_failed = true; tvc.m_double_spend = true; @@ -228,6 +229,7 @@ namespace cryptonote meta.last_relayed_time = time(NULL); meta.relayed = relayed; meta.do_not_relay = do_not_relay; + meta.double_spend_seen = have_tx_keyimges_as_spent(tx); memset(meta.padding, 0, sizeof(meta.padding)); try { @@ -266,6 +268,7 @@ namespace cryptonote meta.last_relayed_time = time(NULL); meta.relayed = relayed; meta.do_not_relay = do_not_relay; + meta.double_spend_seen = false; memset(meta.padding, 0, sizeof(meta.padding)); try @@ -354,7 +357,7 @@ namespace cryptonote return true; } //--------------------------------------------------------------------------------- - bool tx_memory_pool::take_tx(const crypto::hash &id, transaction &tx, size_t& blob_size, uint64_t& fee, bool &relayed, bool &do_not_relay) + bool tx_memory_pool::take_tx(const crypto::hash &id, transaction &tx, size_t& blob_size, uint64_t& fee, bool &relayed, bool &do_not_relay, bool &double_spend_seen) { CRITICAL_REGION_LOCAL(m_transactions_lock); CRITICAL_REGION_LOCAL1(m_blockchain); @@ -377,6 +380,7 @@ namespace cryptonote fee = meta.fee; relayed = meta.relayed; do_not_relay = meta.do_not_relay; + double_spend_seen = meta.double_spend_seen; // remove first, in case this throws, so key images aren't removed m_blockchain.remove_txpool_tx(id); @@ -594,6 +598,8 @@ namespace cryptonote uint64_t age = now - meta.receive_time + (now == meta.receive_time); agebytes[age].txs++; agebytes[age].bytes += meta.blob_size; + if (meta.double_spend_seen) + ++stats.num_double_spends; return true; }); stats.bytes_med = epee::misc_utils::median(sizes); @@ -649,6 +655,7 @@ namespace cryptonote m_blockchain.for_all_txpool_txes([&tx_infos, key_image_infos](const crypto::hash &txid, const txpool_tx_meta_t &meta, const cryptonote::blobdata *bd){ tx_info txi; txi.id_hash = epee::string_tools::pod_to_hex(txid); + txi.tx_blob = *bd; transaction tx; if (!parse_and_validate_tx_from_blob(*bd, tx)) { @@ -668,6 +675,7 @@ namespace cryptonote txi.relayed = meta.relayed; txi.last_relayed_time = meta.last_relayed_time; txi.do_not_relay = meta.do_not_relay; + txi.double_spend_seen = meta.double_spend_seen; tx_infos.push_back(txi); return true; }, true); @@ -712,6 +720,7 @@ namespace cryptonote txi.relayed = meta.relayed; txi.last_relayed_time = meta.last_relayed_time; txi.do_not_relay = meta.do_not_relay; + txi.double_spend_seen = meta.double_spend_seen; tx_infos.push_back(txi); return true; }, true); @@ -843,7 +852,10 @@ namespace cryptonote } //if we here, transaction seems valid, but, anyway, check for key_images collisions with blockchain, just to be sure if(m_blockchain.have_tx_keyimges_as_spent(tx)) + { + txd.double_spend_seen = true; return false; + } //transaction is ok. return true; @@ -871,6 +883,39 @@ namespace cryptonote return true; } //--------------------------------------------------------------------------------- + void tx_memory_pool::mark_double_spend(const transaction &tx) + { + CRITICAL_REGION_LOCAL(m_transactions_lock); + CRITICAL_REGION_LOCAL1(m_blockchain); + LockedTXN lock(m_blockchain); + for(size_t i = 0; i!= tx.vin.size(); i++) + { + CHECKED_GET_SPECIFIC_VARIANT(tx.vin[i], const txin_to_key, itk, void()); + const key_images_container::const_iterator it = m_spent_key_images.find(itk.k_image); + if (it != m_spent_key_images.end()) + { + for (const crypto::hash &txid: it->second) + { + txpool_tx_meta_t meta = m_blockchain.get_txpool_tx_meta(txid); + if (!meta.double_spend_seen) + { + MDEBUG("Marking " << txid << " as double spending " << itk.k_image); + meta.double_spend_seen = true; + try + { + m_blockchain.update_txpool_tx(txid, meta); + } + catch (const std::exception &e) + { + MERROR("Failed to update tx meta: " << e.what()); + // continue, not fatal + } + } + } + } + } + } + //--------------------------------------------------------------------------------- std::string tx_memory_pool::print_pool(bool short_format) const { std::stringstream ss; @@ -890,6 +935,7 @@ namespace cryptonote ss << "blob_size: " << meta.blob_size << std::endl << "fee: " << print_money(meta.fee) << std::endl << "kept_by_block: " << (meta.kept_by_block ? 'T' : 'F') << std::endl + << "double_spend_seen: " << (meta.double_spend_seen ? 'T' : 'F') << std::endl << "max_used_block_height: " << meta.max_used_block_height << std::endl << "max_used_block_id: " << meta.max_used_block_id << std::endl << "last_failed_height: " << meta.last_failed_height << std::endl diff --git a/src/cryptonote_core/tx_pool.h b/src/cryptonote_core/tx_pool.h index 3e4ccb338..8a0106638 100644 --- a/src/cryptonote_core/tx_pool.h +++ b/src/cryptonote_core/tx_pool.h @@ -137,10 +137,11 @@ namespace cryptonote * @param fee the transaction fee * @param relayed return-by-reference was transaction relayed to us by the network? * @param do_not_relay return-by-reference is transaction not to be relayed to the network? + * @param double_spend_seen return-by-reference was a double spend seen for that transaction? * * @return true unless the transaction cannot be found in the pool */ - bool take_tx(const crypto::hash &id, transaction &tx, size_t& blob_size, uint64_t& fee, bool &relayed, bool &do_not_relay); + bool take_tx(const crypto::hash &id, transaction &tx, size_t& blob_size, uint64_t& fee, bool &relayed, bool &do_not_relay, bool &double_spend_seen); /** * @brief checks if the pool has a transaction with the given hash @@ -391,6 +392,8 @@ namespace cryptonote time_t last_relayed_time; //!< the last time the transaction was relayed to the network bool relayed; //!< whether or not the transaction has been relayed to the network bool do_not_relay; //!< to avoid relay this transaction to the network + + bool double_spend_seen; //!< true iff another tx was seen double spending this one }; private: @@ -478,6 +481,11 @@ namespace cryptonote */ bool is_transaction_ready_to_go(txpool_tx_meta_t& txd, transaction &tx) const; + /** + * @brief mark all transactions double spending the one passed + */ + void mark_double_spend(const transaction &tx); + //TODO: confirm the below comments and investigate whether or not this // is the desired behavior //! map key images to transactions which spent them diff --git a/src/daemon/rpc_command_executor.cpp b/src/daemon/rpc_command_executor.cpp index 2c11dcb31..6733d66c2 100644 --- a/src/daemon/rpc_command_executor.cpp +++ b/src/daemon/rpc_command_executor.cpp @@ -840,6 +840,7 @@ bool t_rpc_command_executor::print_transaction_pool_long() { << "relayed: " << [&](const cryptonote::tx_info &tx_info)->std::string { if (!tx_info.relayed) return "no"; return boost::lexical_cast(tx_info.last_relayed_time) + " (" + get_human_time_ago(tx_info.last_relayed_time, now) + ")"; } (tx_info) << std::endl << "do_not_relay: " << (tx_info.do_not_relay ? 'T' : 'F') << std::endl << "kept_by_block: " << (tx_info.kept_by_block ? 'T' : 'F') << std::endl + << "double_spend_seen: " << (tx_info.double_spend_seen ? 'T' : 'F') << std::endl << "max_used_block_height: " << tx_info.max_used_block_height << std::endl << "max_used_block_id: " << tx_info.max_used_block_id_hash << std::endl << "last_failed_height: " << tx_info.last_failed_height << std::endl @@ -922,6 +923,7 @@ bool t_rpc_command_executor::print_transaction_pool_short() { << "relayed: " << [&](const cryptonote::tx_info &tx_info)->std::string { if (!tx_info.relayed) return "no"; return boost::lexical_cast(tx_info.last_relayed_time) + " (" + get_human_time_ago(tx_info.last_relayed_time, now) + ")"; } (tx_info) << std::endl << "do_not_relay: " << (tx_info.do_not_relay ? 'T' : 'F') << std::endl << "kept_by_block: " << (tx_info.kept_by_block ? 'T' : 'F') << std::endl + << "double_spend_seen: " << (tx_info.double_spend_seen ? 'T' : 'F') << std::endl << "max_used_block_height: " << tx_info.max_used_block_height << std::endl << "max_used_block_id: " << tx_info.max_used_block_id_hash << std::endl << "last_failed_height: " << tx_info.last_failed_height << std::endl @@ -984,7 +986,7 @@ bool t_rpc_command_executor::print_transaction_pool_stats() { tools::msg_writer() << n_transactions << " tx(es), " << res.pool_stats.bytes_total << " bytes total (min " << res.pool_stats.bytes_min << ", max " << res.pool_stats.bytes_max << ", avg " << avg_bytes << ", median " << res.pool_stats.bytes_med << ")" << std::endl << "fees " << cryptonote::print_money(res.pool_stats.fee_total) << " (avg " << cryptonote::print_money(n_transactions ? res.pool_stats.fee_total / n_transactions : 0) << " per tx" << ", " << cryptonote::print_money(res.pool_stats.bytes_total ? res.pool_stats.fee_total / res.pool_stats.bytes_total : 0) << " per byte)" << std::endl - << res.pool_stats.num_not_relayed << " not relayed, " << res.pool_stats.num_failing << " failing, " << res.pool_stats.num_10m << " older than 10 minutes (oldest " << (res.pool_stats.oldest == 0 ? "-" : get_human_time_ago(res.pool_stats.oldest, now)) << "), " << backlog_message; + << res.pool_stats.num_double_spends << " double spends, " << res.pool_stats.num_not_relayed << " not relayed, " << res.pool_stats.num_failing << " failing, " << res.pool_stats.num_10m << " older than 10 minutes (oldest " << (res.pool_stats.oldest == 0 ? "-" : get_human_time_ago(res.pool_stats.oldest, now)) << "), " << backlog_message; if (n_transactions > 1 && res.pool_stats.histo.size()) { diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp index b3ce30d0c..e653b9520 100755 --- a/src/rpc/core_rpc_server.cpp +++ b/src/rpc/core_rpc_server.cpp @@ -478,15 +478,17 @@ namespace cryptonote // try the pool for any missing txes size_t found_in_pool = 0; std::unordered_set pool_tx_hashes; + std::unordered_map double_spend_seen; if (!missed_txs.empty()) { - std::list pool_txs; - bool r = m_core.get_pool_transactions(pool_txs); + std::vector pool_tx_info; + std::vector pool_key_image_info; + bool r = m_core.get_pool_transactions_and_spent_keys_info(pool_tx_info, pool_key_image_info); if(r) { // sort to match original request std::list sorted_txs; - std::list::const_iterator i; + std::vector::const_iterator i; for (const crypto::hash &h: vh) { if (std::find(missed_txs.begin(), missed_txs.end(), h) == missed_txs.end()) @@ -500,11 +502,26 @@ namespace cryptonote sorted_txs.push_back(std::move(txs.front())); txs.pop_front(); } - else if ((i = std::find_if(pool_txs.begin(), pool_txs.end(), [h](cryptonote::transaction &tx) { return h == cryptonote::get_transaction_hash(tx); })) != pool_txs.end()) + else if ((i = std::find_if(pool_tx_info.begin(), pool_tx_info.end(), [h](const tx_info &txi) { return epee::string_tools::pod_to_hex(h) == txi.id_hash; })) != pool_tx_info.end()) { - sorted_txs.push_back(*i); + cryptonote::transaction tx; + if (!cryptonote::parse_and_validate_tx_from_blob(i->tx_blob, tx)) + { + res.status = "Failed to parse and validate tx from blob"; + return true; + } + sorted_txs.push_back(tx); missed_txs.remove(h); pool_tx_hashes.insert(h); + const std::string hash_string = epee::string_tools::pod_to_hex(h); + for (const auto &ti: pool_tx_info) + { + if (ti.id_hash == hash_string) + { + double_spend_seen.insert(std::make_pair(h, ti.double_spend_seen)); + break; + } + } ++found_in_pool; } } @@ -530,11 +547,21 @@ namespace cryptonote if (e.in_pool) { e.block_height = e.block_timestamp = std::numeric_limits::max(); + if (double_spend_seen.find(tx_hash) != double_spend_seen.end()) + { + e.double_spend_seen = double_spend_seen[tx_hash]; + } + else + { + MERROR("Failed to determine double spend status for " << tx_hash); + e.double_spend_seen = false; + } } else { e.block_height = m_core.get_blockchain_storage().get_db().get_tx_block_height(tx_hash); e.block_timestamp = m_core.get_blockchain_storage().get_db().get_block_timestamp(e.block_height); + e.double_spend_seen = false; } // fill up old style responses too, in case an old wallet asks diff --git a/src/rpc/core_rpc_server_commands_defs.h b/src/rpc/core_rpc_server_commands_defs.h index ee2a79eb4..57799bb81 100644 --- a/src/rpc/core_rpc_server_commands_defs.h +++ b/src/rpc/core_rpc_server_commands_defs.h @@ -566,6 +566,7 @@ namespace cryptonote std::string as_hex; std::string as_json; bool in_pool; + bool double_spend_seen; uint64_t block_height; uint64_t block_timestamp; std::vector output_indices; @@ -575,6 +576,7 @@ namespace cryptonote KV_SERIALIZE(as_hex) KV_SERIALIZE(as_json) KV_SERIALIZE(in_pool) + KV_SERIALIZE(double_spend_seen) KV_SERIALIZE(block_height) KV_SERIALIZE(block_timestamp) KV_SERIALIZE(output_indices) @@ -1357,6 +1359,8 @@ namespace cryptonote bool relayed; uint64_t last_relayed_time; bool do_not_relay; + bool double_spend_seen; + std::string tx_blob; BEGIN_KV_SERIALIZE_MAP() KV_SERIALIZE(id_hash) @@ -1372,6 +1376,8 @@ namespace cryptonote KV_SERIALIZE(relayed) KV_SERIALIZE(last_relayed_time) KV_SERIALIZE(do_not_relay) + KV_SERIALIZE(double_spend_seen) + KV_SERIALIZE(tx_blob) END_KV_SERIALIZE_MAP() }; @@ -1480,6 +1486,7 @@ namespace cryptonote uint32_t num_not_relayed; uint64_t histo_98pc; std::vector histo; + uint32_t num_double_spends; BEGIN_KV_SERIALIZE_MAP() KV_SERIALIZE(bytes_total) @@ -1494,6 +1501,7 @@ namespace cryptonote KV_SERIALIZE(num_not_relayed) KV_SERIALIZE(histo_98pc) KV_SERIALIZE_CONTAINER_POD_AS_BLOB(histo) + KV_SERIALIZE(num_double_spends) END_KV_SERIALIZE_MAP() }; diff --git a/src/rpc/message_data_structs.h b/src/rpc/message_data_structs.h index 00f1e0caa..581048eaf 100644 --- a/src/rpc/message_data_structs.h +++ b/src/rpc/message_data_structs.h @@ -95,6 +95,7 @@ namespace rpc uint64_t last_relayed_time; bool relayed; bool do_not_relay; + bool double_spend_seen; }; typedef std::unordered_map > key_images_with_tx_hashes; diff --git a/src/serialization/json_object.cpp b/src/serialization/json_object.cpp index a40821d19..6e6e51528 100644 --- a/src/serialization/json_object.cpp +++ b/src/serialization/json_object.cpp @@ -755,6 +755,7 @@ void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::tx_in_pool& tx INSERT_INTO_JSON_OBJECT(val, doc, last_relayed_time, tx.last_relayed_time); INSERT_INTO_JSON_OBJECT(val, doc, relayed, tx.relayed); INSERT_INTO_JSON_OBJECT(val, doc, do_not_relay, tx.do_not_relay); + INSERT_INTO_JSON_OBJECT(val, doc, double_spend_seen, tx.double_spend_seen); } @@ -777,6 +778,7 @@ void fromJsonValue(const rapidjson::Value& val, cryptonote::rpc::tx_in_pool& tx) GET_FROM_JSON_OBJECT(val, tx.last_relayed_time, last_relayed_time); GET_FROM_JSON_OBJECT(val, tx.relayed, relayed); GET_FROM_JSON_OBJECT(val, tx.do_not_relay, do_not_relay); + GET_FROM_JSON_OBJECT(val, tx.double_spend_seen, double_spend_seen); } void toJsonValue(rapidjson::Document& doc, const cryptonote::rpc::hard_fork_info& info, rapidjson::Value& val) diff --git a/src/simplewallet/simplewallet.cpp b/src/simplewallet/simplewallet.cpp index c936f481e..d099d22e7 100644 --- a/src/simplewallet/simplewallet.cpp +++ b/src/simplewallet/simplewallet.cpp @@ -4415,15 +4415,18 @@ bool simple_wallet::show_transfers(const std::vector &args_) try { m_wallet->update_pool_state(); - std::list> payments; + std::list> payments; m_wallet->get_unconfirmed_payments(payments, m_current_subaddress_account, subaddr_indices); - for (std::list>::const_iterator i = payments.begin(); i != payments.end(); ++i) { - const tools::wallet2::payment_details &pd = i->second; + for (std::list>::const_iterator i = payments.begin(); i != payments.end(); ++i) { + const tools::wallet2::payment_details &pd = i->second.m_pd; std::string payment_id = string_tools::pod_to_hex(i->first); if (payment_id.substr(16).find_first_not_of('0') == std::string::npos) payment_id = payment_id.substr(0,16); std::string note = m_wallet->get_tx_note(pd.m_tx_hash); - message_writer() << (boost::format("%8.8s %6.6s %16.16s %20.20s %s %s %d %s %s") % "pool" % "in" % get_human_readable_timestamp(pd.m_timestamp) % print_money(pd.m_amount) % string_tools::pod_to_hex(pd.m_tx_hash) % payment_id % pd.m_subaddr_index.minor % "-" % note).str(); + std::string double_spend_note; + if (i->second.m_double_spend_seen) + double_spend_note = tr("[Double spend seen on the network: this transaction may or may not end up being mined] "); + message_writer() << (boost::format("%8.8s %6.6s %16.16s %20.20s %s %s %d %s %s%s") % "pool" % "in" % get_human_readable_timestamp(pd.m_timestamp) % print_money(pd.m_amount) % string_tools::pod_to_hex(pd.m_tx_hash) % payment_id % pd.m_subaddr_index.minor % "-" % note % double_spend_note).str(); } } catch (const std::exception& e) @@ -5439,10 +5442,10 @@ bool simple_wallet::show_transfer(const std::vector &args) try { m_wallet->update_pool_state(); - std::list> pool_payments; + std::list> pool_payments; m_wallet->get_unconfirmed_payments(pool_payments); - for (std::list>::const_iterator i = pool_payments.begin(); i != pool_payments.end(); ++i) { - const tools::wallet2::payment_details &pd = i->second; + for (std::list>::const_iterator i = pool_payments.begin(); i != pool_payments.end(); ++i) { + const tools::wallet2::payment_details &pd = i->second.m_pd; if (pd.m_tx_hash == txid) { std::string payment_id = string_tools::pod_to_hex(i->first); @@ -5455,6 +5458,8 @@ bool simple_wallet::show_transfer(const std::vector &args) success_msg_writer() << "Payment ID: " << payment_id; success_msg_writer() << "Address index: " << pd.m_subaddr_index.minor; success_msg_writer() << "Note: " << m_wallet->get_tx_note(txid); + if (i->second.m_double_spend_seen) + success_msg_writer() << tr("Double spend seen on the network: this transaction may or may not end up being mined"); return true; } } diff --git a/src/wallet/api/transaction_history.cpp b/src/wallet/api/transaction_history.cpp index 59eca3dd7..8a8243047 100644 --- a/src/wallet/api/transaction_history.cpp +++ b/src/wallet/api/transaction_history.cpp @@ -217,10 +217,10 @@ void TransactionHistoryImpl::refresh() // unconfirmed payments (tx pool) - std::list> upayments; + std::list> upayments; m_wallet->m_wallet->get_unconfirmed_payments(upayments); - for (std::list>::const_iterator i = upayments.begin(); i != upayments.end(); ++i) { - const tools::wallet2::payment_details &pd = i->second; + for (std::list>::const_iterator i = upayments.begin(); i != upayments.end(); ++i) { + const tools::wallet2::payment_details &pd = i->second.m_pd; std::string payment_id = string_tools::pod_to_hex(i->first); if (payment_id.substr(16).find_first_not_of('0') == std::string::npos) payment_id = payment_id.substr(0,16); diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp index f0eaf2331..25e48daac 100644 --- a/src/wallet/wallet2.cpp +++ b/src/wallet/wallet2.cpp @@ -444,6 +444,21 @@ std::string strjoin(const std::vector &V, const char *sep) return ss.str(); } +static void emplace_or_replace(std::unordered_multimap &container, + const crypto::hash &key, const tools::wallet2::pool_payment_details &pd) +{ + auto range = container.equal_range(key); + for (auto i = range.first; i != range.second; ++i) + { + if (i->second.m_pd.m_tx_hash == pd.m_pd.m_tx_hash) + { + i->second = pd; + return; + } + } + container.emplace(key, pd); +} + } //namespace namespace tools @@ -793,7 +808,7 @@ void wallet2::scan_output(const cryptonote::account_keys &keys, const cryptonote ++num_vouts_received; } //---------------------------------------------------------------------------------------------------- -void wallet2::process_new_transaction(const crypto::hash &txid, const cryptonote::transaction& tx, const std::vector &o_indices, uint64_t height, uint64_t ts, bool miner_tx, bool pool) +void wallet2::process_new_transaction(const crypto::hash &txid, const cryptonote::transaction& tx, const std::vector &o_indices, uint64_t height, uint64_t ts, bool miner_tx, bool pool, bool double_spend_seen) { // In this function, tx (probably) only contains the base information // (that is, the prunable stuff may or may not be included) @@ -1163,7 +1178,7 @@ void wallet2::process_new_transaction(const crypto::hash &txid, const cryptonote payment.m_timestamp = ts; payment.m_subaddr_index = i.first; if (pool) { - m_unconfirmed_payments.emplace(payment_id, payment); + emplace_or_replace(m_unconfirmed_payments, payment_id, pool_payment_details{payment, double_spend_seen}); if (0 != m_callback) m_callback->on_unconfirmed_money_received(height, txid, tx, payment.m_amount, payment.m_subaddr_index); } @@ -1241,7 +1256,7 @@ void wallet2::process_new_blockchain_entry(const cryptonote::block& b, const cry if(b.timestamp + 60*60*24 > m_account.get_createtime() && height >= m_refresh_from_block_height) { TIME_MEASURE_START(miner_tx_handle_time); - process_new_transaction(get_transaction_hash(b.miner_tx), b.miner_tx, o_indices.indices[txidx++].indices, height, b.timestamp, true, false); + process_new_transaction(get_transaction_hash(b.miner_tx), b.miner_tx, o_indices.indices[txidx++].indices, height, b.timestamp, true, false, false); TIME_MEASURE_FINISH(miner_tx_handle_time); TIME_MEASURE_START(txs_handle_time); @@ -1252,7 +1267,7 @@ void wallet2::process_new_blockchain_entry(const cryptonote::block& b, const cry cryptonote::transaction tx; bool r = parse_and_validate_tx_base_from_blob(txblob, tx); THROW_WALLET_EXCEPTION_IF(!r, error::tx_parse_error, txblob); - process_new_transaction(b.tx_hashes[idx], tx, o_indices.indices[txidx++].indices, height, b.timestamp, false, false); + process_new_transaction(b.tx_hashes[idx], tx, o_indices.indices[txidx++].indices, height, b.timestamp, false, false, false); ++idx; } TIME_MEASURE_FINISH(txs_handle_time); @@ -1520,10 +1535,10 @@ void wallet2::pull_next_blocks(uint64_t start_height, uint64_t &blocks_start_hei void wallet2::remove_obsolete_pool_txs(const std::vector &tx_hashes) { // remove pool txes to us that aren't in the pool anymore - std::unordered_multimap::iterator uit = m_unconfirmed_payments.begin(); + std::unordered_multimap::iterator uit = m_unconfirmed_payments.begin(); while (uit != m_unconfirmed_payments.end()) { - const crypto::hash &txid = uit->second.m_tx_hash; + const crypto::hash &txid = uit->second.m_pd.m_tx_hash; bool found = false; for (const auto &it2: tx_hashes) { @@ -1626,23 +1641,27 @@ void wallet2::update_pool_state(bool refreshed) MDEBUG("update_pool_state done second loop"); // gather txids of new pool txes to us - std::vector txids; + std::vector> txids; for (const auto &txid: res.tx_hashes) { - if (m_scanned_pool_txs[0].find(txid) != m_scanned_pool_txs[0].end() || m_scanned_pool_txs[1].find(txid) != m_scanned_pool_txs[1].end()) - { - LOG_PRINT_L2("Already seen " << txid << ", skipped"); - continue; - } bool txid_found_in_up = false; for (const auto &up: m_unconfirmed_payments) { - if (up.second.m_tx_hash == txid) + if (up.second.m_pd.m_tx_hash == txid) { txid_found_in_up = true; break; } } + if (m_scanned_pool_txs[0].find(txid) != m_scanned_pool_txs[0].end() || m_scanned_pool_txs[1].find(txid) != m_scanned_pool_txs[1].end()) + { + // if it's for us, we want to keep track of whether we saw a double spend, so don't bail out + if (!txid_found_in_up) + { + LOG_PRINT_L2("Already seen " << txid << ", and not for us, skipped"); + continue; + } + } if (!txid_found_in_up) { LOG_PRINT_L1("Found new pool tx: " << txid); @@ -1670,7 +1689,7 @@ void wallet2::update_pool_state(bool refreshed) if (!found) { // not one of those we sent ourselves - txids.push_back(txid); + txids.push_back({txid, false}); } else { @@ -1680,6 +1699,7 @@ void wallet2::update_pool_state(bool refreshed) else { LOG_PRINT_L1("Already saw that one, it's for us"); + txids.push_back({txid, true}); } } @@ -1688,8 +1708,8 @@ void wallet2::update_pool_state(bool refreshed) { cryptonote::COMMAND_RPC_GET_TRANSACTIONS::request req; cryptonote::COMMAND_RPC_GET_TRANSACTIONS::response res; - for (const auto &txid: txids) - req.txs_hashes.push_back(epee::string_tools::pod_to_hex(txid)); + for (const auto &p: txids) + req.txs_hashes.push_back(epee::string_tools::pod_to_hex(p.first)); MDEBUG("asking for " << txids.size() << " transactions"); req.decode_as_json = false; m_daemon_rpc_mutex.lock(); @@ -1711,10 +1731,11 @@ void wallet2::update_pool_state(bool refreshed) { if (cryptonote::parse_and_validate_tx_from_blob(bd, tx, tx_hash, tx_prefix_hash)) { - const std::vector::const_iterator i = std::find(txids.begin(), txids.end(), tx_hash); + const std::vector>::const_iterator i = std::find_if(txids.begin(), txids.end(), + [tx_hash](const std::pair &e) { return e.first == tx_hash; }); if (i != txids.end()) { - process_new_transaction(tx_hash, tx, std::vector(), 0, time(NULL), false, true); + process_new_transaction(tx_hash, tx, std::vector(), 0, time(NULL), false, true, tx_entry.double_spend_seen); m_scanned_pool_txs[0].insert(tx_hash); if (m_scanned_pool_txs[0].size() > 5000) { @@ -3073,11 +3094,11 @@ void wallet2::get_unconfirmed_payments_out(std::list>& unconfirmed_payments, const boost::optional& subaddr_account, const std::set& subaddr_indices) const +void wallet2::get_unconfirmed_payments(std::list>& unconfirmed_payments, const boost::optional& subaddr_account, const std::set& subaddr_indices) const { for (auto i = m_unconfirmed_payments.begin(); i != m_unconfirmed_payments.end(); ++i) { - if ((!subaddr_account || *subaddr_account == i->second.m_subaddr_index.major) && - (subaddr_indices.empty() || subaddr_indices.count(i->second.m_subaddr_index.minor) == 1)) + if ((!subaddr_account || *subaddr_account == i->second.m_pd.m_subaddr_index.major) && + (subaddr_indices.empty() || subaddr_indices.count(i->second.m_pd.m_subaddr_index.minor) == 1)) unconfirmed_payments.push_back(*i); } } @@ -5129,7 +5150,7 @@ void wallet2::light_wallet_get_address_txs() payments_txs.push_back(p.second.m_tx_hash); std::vector unconfirmed_payments_txs; for(const auto &up: m_unconfirmed_payments) - unconfirmed_payments_txs.push_back(up.second.m_tx_hash); + unconfirmed_payments_txs.push_back(up.second.m_pd.m_tx_hash); // for balance calculation uint64_t wallet_total_sent = 0; @@ -5195,7 +5216,11 @@ void wallet2::light_wallet_get_address_txs() if (t.mempool) { if (std::find(unconfirmed_payments_txs.begin(), unconfirmed_payments_txs.end(), tx_hash) == unconfirmed_payments_txs.end()) { pool_txs.push_back(tx_hash); - m_unconfirmed_payments.emplace(tx_hash, payment); + // assume false as we don't get that info from the light wallet server + crypto::hash payment_id; + THROW_WALLET_EXCEPTION_IF(!epee::string_tools::hex_to_pod(t.payment_id, payment_id), + error::wallet_internal_error, "Failed to parse payment id"); + emplace_or_replace(m_unconfirmed_payments, payment_id, pool_payment_details{payment, false}); if (0 != m_callback) { m_callback->on_lw_unconfirmed_money_received(t.height, payment.m_tx_hash, payment.m_amount); } diff --git a/src/wallet/wallet2.h b/src/wallet/wallet2.h index f1e12a700..ba2fc567d 100644 --- a/src/wallet/wallet2.h +++ b/src/wallet/wallet2.h @@ -244,6 +244,12 @@ namespace tools bool m_incoming; }; + struct pool_payment_details + { + payment_details m_pd; + bool m_double_spend_seen; + }; + struct unconfirmed_transfer_details { cryptonote::transaction_prefix m_tx; @@ -530,7 +536,7 @@ namespace tools void get_payments_out(std::list>& confirmed_payments, uint64_t min_height, uint64_t max_height = (uint64_t)-1, const boost::optional& subaddr_account = boost::none, const std::set& subaddr_indices = {}) const; void get_unconfirmed_payments_out(std::list>& unconfirmed_payments, const boost::optional& subaddr_account = boost::none, const std::set& subaddr_indices = {}) const; - void get_unconfirmed_payments(std::list>& unconfirmed_payments, const boost::optional& subaddr_account = boost::none, const std::set& subaddr_indices = {}) const; + void get_unconfirmed_payments(std::list>& unconfirmed_payments, const boost::optional& subaddr_account = boost::none, const std::set& subaddr_indices = {}) const; uint64_t get_blockchain_current_height() const { return m_local_bc_height; } void rescan_spent(); @@ -585,7 +591,7 @@ namespace tools std::unordered_map m; a & m; for (std::unordered_map::const_iterator i = m.begin(); i != m.end(); ++i) - m_unconfirmed_payments.insert(*i); + m_unconfirmed_payments.insert(std::make_pair(i->first, pool_payment_details{i->second, false})); } if(ver < 14) return; @@ -607,7 +613,15 @@ namespace tools a & m_address_book; if(ver < 17) return; - a & m_unconfirmed_payments; + if (ver < 21) + { + // we're loading an old version, where m_unconfirmed_payments payload was payment_details + std::unordered_map m; + a & m; + for (const auto &i: m) + m_unconfirmed_payments.insert(std::make_pair(i.first, pool_payment_details{i.second, false})); + return; + } if(ver < 18) return; a & m_scanned_pool_txs[0]; @@ -621,6 +635,9 @@ namespace tools if(ver < 21) return; a & m_attributes; + if(ver < 22) + return; + a & m_unconfirmed_payments; } /*! @@ -797,7 +814,7 @@ namespace tools * \param password Password of wallet file */ bool load_keys(const std::string& keys_file_name, const std::string& password); - void process_new_transaction(const crypto::hash &txid, const cryptonote::transaction& tx, const std::vector &o_indices, uint64_t height, uint64_t ts, bool miner_tx, bool pool); + void process_new_transaction(const crypto::hash &txid, const cryptonote::transaction& tx, const std::vector &o_indices, uint64_t height, uint64_t ts, bool miner_tx, bool pool, bool double_spend_seen); void process_new_blockchain_entry(const cryptonote::block& b, const cryptonote::block_complete_entry& bche, const crypto::hash& bl_id, uint64_t height, const cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices &o_indices); void detach_blockchain(uint64_t height); void get_short_chain_history(std::list& ids) const; @@ -846,7 +863,7 @@ namespace tools std::atomic m_local_bc_height; //temporary workaround std::unordered_map m_unconfirmed_txs; std::unordered_map m_confirmed_txs; - std::unordered_multimap m_unconfirmed_payments; + std::unordered_multimap m_unconfirmed_payments; std::unordered_map m_tx_keys; cryptonote::checkpoints m_checkpoints; std::unordered_map> m_additional_tx_keys; @@ -908,9 +925,10 @@ namespace tools std::unordered_map > m_key_image_cache; }; } -BOOST_CLASS_VERSION(tools::wallet2, 21) +BOOST_CLASS_VERSION(tools::wallet2, 22) BOOST_CLASS_VERSION(tools::wallet2::transfer_details, 8) BOOST_CLASS_VERSION(tools::wallet2::payment_details, 2) +BOOST_CLASS_VERSION(tools::wallet2::pool_payment_details, 1) BOOST_CLASS_VERSION(tools::wallet2::unconfirmed_transfer_details, 7) BOOST_CLASS_VERSION(tools::wallet2::confirmed_transfer_details, 5) BOOST_CLASS_VERSION(tools::wallet2::address_book_row, 17) @@ -1137,7 +1155,14 @@ namespace boost } a & x.m_subaddr_index; } - + + template + inline void serialize(Archive& a, tools::wallet2::pool_payment_details& x, const boost::serialization::version_type ver) + { + a & x.m_pd; + a & x.m_double_spend_seen; + } + template inline void serialize(Archive& a, tools::wallet2::address_book_row& x, const boost::serialization::version_type ver) { diff --git a/src/wallet/wallet_rpc_server.cpp b/src/wallet/wallet_rpc_server.cpp index 9e6a97bdc..5dbf30419 100755 --- a/src/wallet/wallet_rpc_server.cpp +++ b/src/wallet/wallet_rpc_server.cpp @@ -299,8 +299,9 @@ namespace tools entry.subaddr_index = { pd.m_subaddr_account, 0 }; } //------------------------------------------------------------------------------------------------------------------------------ - void wallet_rpc_server::fill_transfer_entry(tools::wallet_rpc::transfer_entry &entry, const crypto::hash &payment_id, const tools::wallet2::payment_details &pd) + void wallet_rpc_server::fill_transfer_entry(tools::wallet_rpc::transfer_entry &entry, const crypto::hash &payment_id, const tools::wallet2::pool_payment_details &ppd) { + const tools::wallet2::payment_details &pd = ppd.m_pd; entry.txid = string_tools::pod_to_hex(pd.m_tx_hash); entry.payment_id = string_tools::pod_to_hex(payment_id); if (entry.payment_id.substr(16).find_first_not_of('0') == std::string::npos) @@ -311,6 +312,7 @@ namespace tools entry.unlock_time = pd.m_unlock_time; entry.fee = 0; // TODO entry.note = m_wallet->get_tx_note(pd.m_tx_hash); + entry.double_spend_seen = ppd.m_double_spend_seen; entry.type = "pool"; entry.subaddr_index = pd.m_subaddr_index; } @@ -1357,9 +1359,9 @@ namespace tools { m_wallet->update_pool_state(); - std::list> payments; + std::list> payments; m_wallet->get_unconfirmed_payments(payments, req.account_index, req.subaddr_indices); - for (std::list>::const_iterator i = payments.begin(); i != payments.end(); ++i) { + for (std::list>::const_iterator i = payments.begin(); i != payments.end(); ++i) { res.pool.push_back(wallet_rpc::transfer_entry()); fill_transfer_entry(res.pool.back(), i->first, i->second); } @@ -1430,10 +1432,10 @@ namespace tools m_wallet->update_pool_state(); - std::list> pool_payments; + std::list> pool_payments; m_wallet->get_unconfirmed_payments(pool_payments); - for (std::list>::const_iterator i = pool_payments.begin(); i != pool_payments.end(); ++i) { - if (i->second.m_tx_hash == txid) + for (std::list>::const_iterator i = pool_payments.begin(); i != pool_payments.end(); ++i) { + if (i->second.m_pd.m_tx_hash == txid) { fill_transfer_entry(res.transfer, i->first, i->second); return true; diff --git a/src/wallet/wallet_rpc_server.h b/src/wallet/wallet_rpc_server.h index b38726cb7..a2677ef1b 100644 --- a/src/wallet/wallet_rpc_server.h +++ b/src/wallet/wallet_rpc_server.h @@ -163,7 +163,7 @@ namespace tools void fill_transfer_entry(tools::wallet_rpc::transfer_entry &entry, const crypto::hash &txid, const crypto::hash &payment_id, const tools::wallet2::payment_details &pd); void fill_transfer_entry(tools::wallet_rpc::transfer_entry &entry, const crypto::hash &txid, const tools::wallet2::confirmed_transfer_details &pd); void fill_transfer_entry(tools::wallet_rpc::transfer_entry &entry, const crypto::hash &txid, const tools::wallet2::unconfirmed_transfer_details &pd); - void fill_transfer_entry(tools::wallet_rpc::transfer_entry &entry, const crypto::hash &payment_id, const tools::wallet2::payment_details &pd); + void fill_transfer_entry(tools::wallet_rpc::transfer_entry &entry, const crypto::hash &payment_id, const tools::wallet2::pool_payment_details &pd); bool not_open(epee::json_rpc::error& er); uint64_t adjust_mixin(uint64_t mixin); void handle_rpc_exception(const std::exception_ptr& e, epee::json_rpc::error& er, int default_error_code); diff --git a/src/wallet/wallet_rpc_server_commands_defs.h b/src/wallet/wallet_rpc_server_commands_defs.h index ffc2e2d49..06f2456c3 100644 --- a/src/wallet/wallet_rpc_server_commands_defs.h +++ b/src/wallet/wallet_rpc_server_commands_defs.h @@ -794,6 +794,7 @@ namespace wallet_rpc std::string type; uint64_t unlock_time; cryptonote::subaddress_index subaddr_index; + bool double_spend_seen; BEGIN_KV_SERIALIZE_MAP() KV_SERIALIZE(txid); @@ -807,6 +808,7 @@ namespace wallet_rpc KV_SERIALIZE(type); KV_SERIALIZE(unlock_time) KV_SERIALIZE(subaddr_index); + KV_SERIALIZE(double_spend_seen) END_KV_SERIALIZE_MAP() };