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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2013-2024 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
* ndn-cxx library is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received copies of the GNU General Public License and GNU Lesser
* General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
* <http://www.gnu.org/licenses/>.
*
* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
*/
#include "ndnsec.hpp"
#include "util.hpp"
#include "ndn-cxx/util/scope.hpp"
#include <openssl/crypto.h>
namespace ndn::ndnsec {
int
ndnsec_export(int argc, char** argv)
{
namespace po = boost::program_options;
Name name;
bool isIdentityName = false;
bool isKeyName = false;
bool isCertName = false;
std::string output;
std::string password;
auto guard = make_scope_exit([&password] {
OPENSSL_cleanse(&password.front(), password.size());
});
po::options_description visibleOptDesc(
"Usage: ndnsec export [-h] [-o FILE] [-P PASSPHRASE] [-i|-k|-c] NAME\n"
"\n"
"Export a private key and its certificate in SafeBag format.\n"
"\n"
"Options");
visibleOptDesc.add_options()
("help,h", "produce help message")
("identity,i", po::bool_switch(&isIdentityName),
"treat the NAME argument as an identity name (e.g., /ndn/edu/ucla/alice)")
("key,k", po::bool_switch(&isKeyName),
"treat the NAME argument as a key name (e.g., /ndn/edu/ucla/alice/KEY/1%5D%A7g%90%B2%CF%AA)")
("cert,c", po::bool_switch(&isCertName),
"treat the NAME argument as a certificate name "
"(e.g., /ndn/edu/ucla/alice/KEY/1%5D%A7g%90%B2%CF%AA/self/%FD%00%00%01r-%D3%DC%2A)")
("output,o", po::value<std::string>(&output)->default_value("-"),
"output file, '-' for stdout (the default)")
("password,P", po::value<std::string>(&password),
"passphrase, will prompt if empty or not specified")
;
po::options_description hiddenOptDesc;
hiddenOptDesc.add_options()
("name", po::value<Name>(&name));
po::options_description optDesc;
optDesc.add(visibleOptDesc).add(hiddenOptDesc);
po::positional_options_description optPos;
optPos.add("name", 1);
po::variables_map vm;
try {
po::store(po::command_line_parser(argc, argv).options(optDesc).positional(optPos).run(), vm);
po::notify(vm);
}
catch (const std::exception& e) {
std::cerr << "ERROR: " << e.what() << "\n\n"
<< visibleOptDesc << std::endl;
return 2;
}
if (vm.count("help") > 0) {
std::cout << visibleOptDesc << std::endl;
return 0;
}
if (vm.count("name") == 0) {
std::cerr << "ERROR: you must specify a name" << std::endl;
return 2;
}
int nIsNameOptions = isIdentityName + isKeyName + isCertName;
if (nIsNameOptions > 1) {
std::cerr << "ERROR: at most one of '--identity', '--key', "
"or '--cert' may be specified" << std::endl;
return 2;
}
else if (nIsNameOptions == 0) {
isIdentityName = true;
}
KeyChain keyChain;
auto cert = getCertificateFromPib(keyChain.getPib(), name,
isIdentityName, isKeyName, isCertName);
if (password.empty()) {
int count = 3;
while (!getPassword(password, "Passphrase for the private key: ")) {
count--;
if (count <= 0) {
std::cerr << "ERROR: invalid password" << std::endl;
return 1;
}
}
}
auto safeBag = keyChain.exportSafeBag(cert, password.data(), password.size());
if (output == "-")
io::save(*safeBag, std::cout);
else
io::save(*safeBag, output);
return 0;
}
} // namespace ndn::ndnsec