simplewallet: allow creating a wallet from a public address and view secret key
The needed information is supplied via a triple: --generate-from-view-key address:viewkey:filename
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@ -76,6 +76,7 @@ namespace
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{
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const command_line::arg_descriptor<std::string> arg_wallet_file = {"wallet-file", "Use wallet <arg>", ""};
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const command_line::arg_descriptor<std::string> arg_generate_new_wallet = {"generate-new-wallet", "Generate new wallet and save it to <arg> or <address>.wallet by default", ""};
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const command_line::arg_descriptor<std::string> arg_generate_from_view_key = {"generate-from-view-key", "Generate wallet from (address:viewkey:filename) and save it to <filename>", ""};
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const command_line::arg_descriptor<std::string> arg_daemon_address = {"daemon-address", "Use daemon instance at <host>:<port>", ""};
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const command_line::arg_descriptor<std::string> arg_daemon_host = {"daemon-host", "Use daemon instance at host <arg> instead of localhost", ""};
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const command_line::arg_descriptor<std::string> arg_password = {"password", "Wallet password", "", true};
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@ -400,7 +401,7 @@ bool simple_wallet::ask_wallet_create_if_needed()
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// add logic to error out if new wallet requested but named wallet file exists
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if (keys_file_exists || wallet_file_exists)
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{
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if (!m_generate_new.empty() || m_restore_deterministic_wallet)
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if (!m_generate_new.empty() || m_restore_deterministic_wallet || !m_generate_from_view_key.empty())
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{
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fail_msg_writer() << "Attempting to generate or restore wallet, but specified file(s) exist. Exiting to not risk overwriting.";
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return false;
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@ -455,12 +456,12 @@ bool simple_wallet::init(const boost::program_options::variables_map& vm)
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return false;
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}
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if(!m_generate_new.empty() && !m_wallet_file.empty())
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if((!m_generate_new.empty()) + (!m_wallet_file.empty()) + (!m_generate_from_view_key.empty()) > 1)
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{
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fail_msg_writer() << "Specifying both --generate-new-wallet=\"wallet_name\" and --wallet-file=\"wallet_name\" doesn't make sense!";
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fail_msg_writer() << "Specifying more than one of --generate-new-wallet=\"wallet_name\", --wallet-file=\"wallet_name\" and --generate-from-keys doesn't make sense!";
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return false;
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}
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else if (m_generate_new.empty() && m_wallet_file.empty())
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else if (m_generate_new.empty() && m_wallet_file.empty() && m_generate_from_view_key.empty())
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{
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if(!ask_wallet_create_if_needed()) return false;
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}
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@ -493,7 +494,7 @@ bool simple_wallet::init(const boost::program_options::variables_map& vm)
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}
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}
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if (!m_generate_new.empty() || m_restore_deterministic_wallet)
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if (!m_generate_new.empty() || m_restore_deterministic_wallet || !m_generate_from_view_key.empty())
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{
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if (m_wallet_file.empty()) m_wallet_file = m_generate_new; // alias for simplicity later
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@ -523,9 +524,50 @@ bool simple_wallet::init(const boost::program_options::variables_map& vm)
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return false;
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}
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}
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bool r = new_wallet(m_wallet_file, pwd_container.password(), m_recovery_key, m_restore_deterministic_wallet,
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m_non_deterministic, testnet, old_language);
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CHECK_AND_ASSERT_MES(r, false, "account creation failed");
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if (!m_generate_from_view_key.empty())
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{
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// split address:viewkey:filename triple
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std::vector<std::string> parts;
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boost::split(parts,m_generate_from_view_key, boost::is_any_of(":"));
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if (parts.size() < 3)
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{
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fail_msg_writer() << "--generate-from-view-key needs a address:viewkey:filename triple";
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return false;
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}
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// parse address
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cryptonote::account_public_address address;
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bool has_payment_id;
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crypto::hash new_payment_id;
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if(!get_account_integrated_address_from_str(address, has_payment_id, new_payment_id, testnet, parts[0]))
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{
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fail_msg_writer() << "Failed to parse address";
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return false;
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}
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// parse view secret key
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cryptonote::blobdata viewkey_data;
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if(!epee::string_tools::parse_hexstr_to_binbuff(parts[1], viewkey_data))
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{
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fail_msg_writer() << "Failed to parse view key secret key";
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return false;
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}
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crypto::secret_key viewkey = *reinterpret_cast<const crypto::secret_key*>(viewkey_data.data());
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// parse filename
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m_wallet_file = parts[2];
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for (size_t n = 3; n < parts.size(); ++n)
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m_wallet_file += std::string(":") + parts[n];
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bool r = new_wallet(m_wallet_file, pwd_container.password(), address, viewkey, testnet);
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CHECK_AND_ASSERT_MES(r, false, "account creation failed");
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}
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else
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{
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bool r = new_wallet(m_wallet_file, pwd_container.password(), m_recovery_key, m_restore_deterministic_wallet,
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m_non_deterministic, testnet, old_language);
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CHECK_AND_ASSERT_MES(r, false, "account creation failed");
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}
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}
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else
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{
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@ -548,6 +590,7 @@ void simple_wallet::handle_command_line(const boost::program_options::variables_
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{
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m_wallet_file = command_line::get_arg(vm, arg_wallet_file);
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m_generate_new = command_line::get_arg(vm, arg_generate_new_wallet);
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m_generate_from_view_key = command_line::get_arg(vm, arg_generate_from_view_key);
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m_daemon_address = command_line::get_arg(vm, arg_daemon_address);
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m_daemon_host = command_line::get_arg(vm, arg_daemon_host);
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m_daemon_port = command_line::get_arg(vm, arg_daemon_port);
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@ -677,6 +720,32 @@ bool simple_wallet::new_wallet(const std::string &wallet_file, const std::string
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return true;
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}
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//----------------------------------------------------------------------------------------------------
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bool simple_wallet::new_wallet(const std::string &wallet_file, const std::string& password, const cryptonote::account_public_address& address,
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const crypto::secret_key& viewkey, bool testnet)
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{
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m_wallet_file = wallet_file;
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m_wallet.reset(new tools::wallet2(testnet));
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m_wallet->callback(this);
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try
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{
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m_wallet->generate(wallet_file, password, address, viewkey);
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message_writer(epee::log_space::console_color_white, true) << "Generated new watch-only wallet: "
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<< m_wallet->get_account().get_public_address_str(m_wallet->testnet());
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std::cout << "view key: " << string_tools::pod_to_hex(m_wallet->get_account().get_keys().m_view_secret_key) << ENDL;
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}
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catch (const std::exception& e)
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{
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fail_msg_writer() << "failed to generate new wallet: " << e.what();
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return false;
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}
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m_wallet->init(m_daemon_address);
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return true;
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}
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//----------------------------------------------------------------------------------------------------
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bool simple_wallet::open_wallet(const string &wallet_file, const std::string& password, bool testnet)
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{
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if (!tools::wallet2::wallet_valid_path_format(wallet_file))
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@ -1595,6 +1664,7 @@ int main(int argc, char* argv[])
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po::options_description desc_params("Wallet options");
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command_line::add_arg(desc_params, arg_wallet_file);
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command_line::add_arg(desc_params, arg_generate_new_wallet);
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command_line::add_arg(desc_params, arg_generate_from_view_key);
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command_line::add_arg(desc_params, arg_password);
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command_line::add_arg(desc_params, arg_daemon_address);
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command_line::add_arg(desc_params, arg_daemon_host);
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@ -76,6 +76,8 @@ namespace cryptonote
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bool new_wallet(const std::string &wallet_file, const std::string& password, const crypto::secret_key& recovery_key,
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bool recover, bool two_random, bool testnet, const std::string &old_language);
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bool new_wallet(const std::string &wallet_file, const std::string& password, const cryptonote::account_public_address& address,
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const crypto::secret_key& viewkey, bool testnet);
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bool open_wallet(const std::string &wallet_file, const std::string& password, bool testnet);
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bool close_wallet();
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@ -194,6 +196,7 @@ namespace cryptonote
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private:
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std::string m_wallet_file;
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std::string m_generate_new;
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std::string m_generate_from_view_key;
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std::string m_import_path;
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std::string m_electrum_seed; // electrum-style seed parameter
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@ -675,6 +675,40 @@ crypto::secret_key wallet2::generate(const std::string& wallet_, const std::stri
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return retval;
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}
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/*!
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* \brief Creates a watch only wallet from a public address and a view secret key.
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* \param wallet_ Name of wallet file
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* \param password Password of wallet file
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* \param viewkey view secret key
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*/
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void wallet2::generate(const std::string& wallet_, const std::string& password,
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const cryptonote::account_public_address &account_public_address,
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const crypto::secret_key& viewkey)
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{
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clear();
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prepare_file_names(wallet_);
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boost::system::error_code ignored_ec;
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THROW_WALLET_EXCEPTION_IF(boost::filesystem::exists(m_wallet_file, ignored_ec), error::file_exists, m_wallet_file);
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THROW_WALLET_EXCEPTION_IF(boost::filesystem::exists(m_keys_file, ignored_ec), error::file_exists, m_keys_file);
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m_account.create_from_viewkey(account_public_address, viewkey);
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m_account_public_address = account_public_address;
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m_watch_only = true;
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bool r = store_keys(m_keys_file, password, true);
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THROW_WALLET_EXCEPTION_IF(!r, error::file_save_error, m_keys_file);
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r = file_io_utils::save_string_to_file(m_wallet_file + ".address.txt", m_account.get_public_address_str(m_testnet));
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if(!r) LOG_PRINT_RED_L0("String with address text not saved");
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cryptonote::block b;
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generate_genesis(b);
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m_blockchain.push_back(get_block_hash(b));
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store();
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}
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/*!
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* \brief Rewrites to the wallet file for wallet upgrade (doesn't generate key, assumes it's already there)
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* \param wallet_name Name of wallet file (should exist)
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@ -145,6 +145,15 @@ namespace tools
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crypto::secret_key generate(const std::string& wallet, const std::string& password,
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const crypto::secret_key& recovery_param = crypto::secret_key(), bool recover = false,
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bool two_random = false);
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/*!
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* \brief Creates a watch only wallet from a public address and a view secret key.
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* \param wallet_ Name of wallet file
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* \param password Password of wallet file
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* \param viewkey view secret key
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*/
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void generate(const std::string& wallet, const std::string& password,
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const cryptonote::account_public_address &account_public_address,
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const crypto::secret_key& viewkey = crypto::secret_key());
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/*!
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* \brief Rewrites to the wallet file for wallet upgrade (doesn't generate key, assumes it's already there)
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* \param wallet_name Name of wallet file (should exist)
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