Davide Pesavento
97ee811129
Implementation taken from scope-lite by Martin Moene, commit 197cd4240069b2b8c393ad0d9eabdee601b606b4 Change-Id: I872b6821504b3270ebdc4c48b7255731fb2efc57
135 lines
4.2 KiB
C++
135 lines
4.2 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2013-2020 Regents of the University of California.
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*
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* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
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*
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* ndn-cxx library is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later version.
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*
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* ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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*
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* You should have received copies of the GNU General Public License and GNU Lesser
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* General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
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*/
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#include "ndnsec.hpp"
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#include "util.hpp"
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#include "ndn-cxx/security/impl/openssl.hpp"
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#include "ndn-cxx/util/io.hpp"
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#include "ndn-cxx/util/scope.hpp"
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namespace ndn {
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namespace ndnsec {
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int
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ndnsec_export(int argc, char** argv)
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{
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namespace po = boost::program_options;
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Name name;
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bool isIdentityName = false;
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bool isKeyName = false;
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bool isCertName = false;
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std::string output;
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std::string password;
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auto guard = make_scope_exit([&password] {
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OPENSSL_cleanse(&password.front(), password.size());
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});
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po::options_description visibleOptDesc(
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"Usage: ndnsec export [-h] [-o FILE] [-P PASSPHRASE] [-i|-k|-c] NAME\n"
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"\n"
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"Options");
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visibleOptDesc.add_options()
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("help,h", "produce help message")
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("identity,i", po::bool_switch(&isIdentityName),
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"treat the NAME argument as an identity name (e.g., /ndn/edu/ucla/alice)")
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("key,k", po::bool_switch(&isKeyName),
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"treat the NAME argument as a key name (e.g., /ndn/edu/ucla/alice/KEY/1%5D%A7g%90%B2%CF%AA)")
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("cert,c", po::bool_switch(&isCertName),
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"treat the NAME argument as a certificate name "
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"(e.g., /ndn/edu/ucla/alice/KEY/1%5D%A7g%90%B2%CF%AA/self/%FD%00%00%01r-%D3%DC%2A)")
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("output,o", po::value<std::string>(&output)->default_value("-"),
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"output file, '-' for stdout (the default)")
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("password,P", po::value<std::string>(&password),
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"passphrase, will prompt if empty or not specified")
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;
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po::options_description hiddenOptDesc;
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hiddenOptDesc.add_options()
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("name", po::value<Name>(&name));
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po::options_description optDesc;
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optDesc.add(visibleOptDesc).add(hiddenOptDesc);
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po::positional_options_description optPos;
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optPos.add("name", 1);
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po::variables_map vm;
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try {
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po::store(po::command_line_parser(argc, argv).options(optDesc).positional(optPos).run(), vm);
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po::notify(vm);
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}
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catch (const std::exception& e) {
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std::cerr << "ERROR: " << e.what() << "\n\n"
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<< visibleOptDesc << std::endl;
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return 2;
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}
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if (vm.count("help") > 0) {
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std::cout << visibleOptDesc << std::endl;
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return 0;
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}
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if (vm.count("name") == 0) {
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std::cerr << "ERROR: you must specify a name" << std::endl;
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return 2;
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}
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int nIsNameOptions = isIdentityName + isKeyName + isCertName;
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if (nIsNameOptions > 1) {
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std::cerr << "ERROR: at most one of '--identity', '--key', "
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"or '--cert' may be specified" << std::endl;
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return 2;
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}
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else if (nIsNameOptions == 0) {
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isIdentityName = true;
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}
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security::v2::KeyChain keyChain;
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auto cert = getCertificateFromPib(keyChain.getPib(), name,
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isIdentityName, isKeyName, isCertName);
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if (password.empty()) {
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int count = 3;
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while (!getPassword(password, "Passphrase for the private key: ")) {
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count--;
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if (count <= 0) {
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std::cerr << "ERROR: invalid password" << std::endl;
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return 1;
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}
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}
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}
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auto safeBag = keyChain.exportSafeBag(cert, password.data(), password.size());
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if (output == "-")
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io::save(*safeBag, std::cout);
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else
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io::save(*safeBag, output);
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return 0;
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}
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} // namespace ndnsec
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} // namespace ndn
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