diff options
Diffstat (limited to 'src/wallet/wallet_rpc_server.cpp')
| -rw-r--r-- | src/wallet/wallet_rpc_server.cpp | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/wallet/wallet_rpc_server.cpp b/src/wallet/wallet_rpc_server.cpp index e0b631aaf..aa00157b0 100644 --- a/src/wallet/wallet_rpc_server.cpp +++ b/src/wallet/wallet_rpc_server.cpp @@ -994,6 +994,171 @@ namespace tools return true; } //------------------------------------------------------------------------------------------------------------------------------ + bool wallet_rpc_server::on_describe_transfer(const wallet_rpc::COMMAND_RPC_DESCRIBE_TRANSFER::request& req, wallet_rpc::COMMAND_RPC_DESCRIBE_TRANSFER::response& res, epee::json_rpc::error& er) + { + if (!m_wallet) return not_open(er); + if (m_restricted) + { + er.code = WALLET_RPC_ERROR_CODE_DENIED; + er.message = "Command unavailable in restricted mode."; + return false; + } + if (m_wallet->key_on_device()) + { + er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR; + er.message = "command not supported by HW wallet"; + return false; + } + if(m_wallet->watch_only()) + { + er.code = WALLET_RPC_ERROR_CODE_WATCH_ONLY; + er.message = "command not supported by watch-only wallet"; + return false; + } + + tools::wallet2::unsigned_tx_set exported_txs; + try + { + cryptonote::blobdata blob; + if (!epee::string_tools::parse_hexstr_to_binbuff(req.unsigned_txset, blob)) + { + er.code = WALLET_RPC_ERROR_CODE_BAD_HEX; + er.message = "Failed to parse hex."; + return false; + } + if(!m_wallet->parse_unsigned_tx_from_str(blob, exported_txs)) + { + er.code = WALLET_RPC_ERROR_CODE_BAD_UNSIGNED_TX_DATA; + er.message = "cannot load unsigned_txset"; + return false; + } + } + catch (const std::exception &e) + { + er.code = WALLET_RPC_ERROR_CODE_BAD_UNSIGNED_TX_DATA; + er.message = "failed to parse unsigned transfers: " + std::string(e.what()); + return false; + } + + std::vector<tools::wallet2::pending_tx> ptx; + try + { + // gather info to ask the user + std::unordered_map<cryptonote::account_public_address, std::pair<std::string, uint64_t>> dests; + int first_known_non_zero_change_index = -1; + for (size_t n = 0; n < exported_txs.txes.size(); ++n) + { + const tools::wallet2::tx_construction_data &cd = exported_txs.txes[n]; + res.desc.push_back({0, 0, std::numeric_limits<uint32_t>::max(), 0, {}, "", 0, "", 0, 0, ""}); + wallet_rpc::COMMAND_RPC_DESCRIBE_TRANSFER::transfer_description &desc = res.desc.back(); + + std::vector<cryptonote::tx_extra_field> tx_extra_fields; + bool has_encrypted_payment_id = false; + crypto::hash8 payment_id8 = crypto::null_hash8; + if (cryptonote::parse_tx_extra(cd.extra, tx_extra_fields)) + { + cryptonote::tx_extra_nonce extra_nonce; + if (find_tx_extra_field_by_type(tx_extra_fields, extra_nonce)) + { + crypto::hash payment_id; + if(cryptonote::get_encrypted_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id8)) + { + desc.payment_id = epee::string_tools::pod_to_hex(payment_id8); + has_encrypted_payment_id = true; + } + else if (cryptonote::get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id)) + { + desc.payment_id = epee::string_tools::pod_to_hex(payment_id); + } + } + } + + for (size_t s = 0; s < cd.sources.size(); ++s) + { + desc.amount_in += cd.sources[s].amount; + size_t ring_size = cd.sources[s].outputs.size(); + if (ring_size < desc.ring_size) + desc.ring_size = ring_size; + } + for (size_t d = 0; d < cd.splitted_dsts.size(); ++d) + { + const cryptonote::tx_destination_entry &entry = cd.splitted_dsts[d]; + std::string address = cryptonote::get_account_address_as_str(m_wallet->nettype(), entry.is_subaddress, entry.addr); + if (has_encrypted_payment_id && !entry.is_subaddress) + address = cryptonote::get_account_integrated_address_as_str(m_wallet->nettype(), entry.addr, payment_id8); + auto i = dests.find(entry.addr); + if (i == dests.end()) + dests.insert(std::make_pair(entry.addr, std::make_pair(address, entry.amount))); + else + i->second.second += entry.amount; + desc.amount_out += entry.amount; + } + if (cd.change_dts.amount > 0) + { + auto it = dests.find(cd.change_dts.addr); + if (it == dests.end()) + { + er.code = WALLET_RPC_ERROR_CODE_BAD_UNSIGNED_TX_DATA; + er.message = "Claimed change does not go to a paid address"; + return false; + } + if (it->second.second < cd.change_dts.amount) + { + er.code = WALLET_RPC_ERROR_CODE_BAD_UNSIGNED_TX_DATA; + er.message = "Claimed change is larger than payment to the change address"; + return false; + } + if (cd.change_dts.amount > 0) + { + if (first_known_non_zero_change_index == -1) + first_known_non_zero_change_index = n; + const tools::wallet2::tx_construction_data &cdn = exported_txs.txes[first_known_non_zero_change_index]; + if (memcmp(&cd.change_dts.addr, &cdn.change_dts.addr, sizeof(cd.change_dts.addr))) + { + er.code = WALLET_RPC_ERROR_CODE_BAD_UNSIGNED_TX_DATA; + er.message = "Change goes to more than one address"; + return false; + } + } + desc.change_amount += cd.change_dts.amount; + it->second.second -= cd.change_dts.amount; + if (it->second.second == 0) + dests.erase(cd.change_dts.addr); + } + + size_t n_dummy_outputs = 0; + for (auto i = dests.begin(); i != dests.end(); ) + { + if (i->second.second > 0) + { + desc.recipients.push_back({i->second.first, i->second.second}); + } + else + ++desc.dummy_outputs; + ++i; + } + + if (desc.change_amount > 0) + { + const tools::wallet2::tx_construction_data &cd0 = exported_txs.txes[0]; + desc.change_address = get_account_address_as_str(m_wallet->nettype(), cd0.subaddr_account > 0, cd0.change_dts.addr); + } + + desc.fee = desc.amount_in - desc.amount_out; + desc.unlock_time = cd.unlock_time; + desc.extra = epee::to_hex::string({cd.extra.data(), cd.extra.size()}); + } + } + catch (const std::exception &e) + { + er.code = WALLET_RPC_ERROR_CODE_BAD_UNSIGNED_TX_DATA; + er.message = "failed to parse unsigned transfers"; + return false; + } + + return true; + } + //------------------------------------------------------------------------------------------------------------------------------ bool wallet_rpc_server::on_submit_transfer(const wallet_rpc::COMMAND_RPC_SUBMIT_TRANSFER::request& req, wallet_rpc::COMMAND_RPC_SUBMIT_TRANSFER::response& res, epee::json_rpc::error& er) { if (!m_wallet) return not_open(er); |