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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/security/additional-description.hpp"
#include "ndn-cxx/security/transform/base64-encode.hpp"
#include "ndn-cxx/security/transform/buffer-source.hpp"
#include "ndn-cxx/security/transform/stream-sink.hpp"
namespace ndn::ndnsec {
int
ndnsec_cert_gen(int argc, char** argv)
{
namespace po = boost::program_options;
using security::Certificate;
std::string requestFile;
std::string notBeforeStr;
std::string notAfterStr;
std::vector<std::string> infos;
Name signId;
std::string issuer;
po::options_description description(
"Usage: ndnsec cert-gen [-h] [-S TIMESTAMP] [-E TIMESTAMP] [-I INFO]...\n"
" [-s IDENTITY] [-i ISSUER] [-r] FILE\n"
"\n"
"Issue a certificate from a certificate signing request.\n"
"\n"
"Options");
description.add_options()
("help,h", "produce help message")
("request,r", po::value<std::string>(&requestFile)->default_value("-"),
"certificate request file name, '-' for stdin (the default)")
("not-before,S", po::value<std::string>(&notBeforeStr),
"certificate validity start date/time in YYYYMMDDhhmmss format (default: now)")
("not-after,E", po::value<std::string>(&notAfterStr),
"certificate validity end date/time in YYYYMMDDhhmmss format (default: "
"365 days after the --not-before timestamp)")
("info,I", po::value<std::vector<std::string>>(&infos),
"key and value (separated by a single space) of the additional description "
"to be included in the issued certificate (e.g., \"affiliation University of "
"California, Los Angeles\"); this option may be repeated multiple times")
("sign-id,s", po::value<Name>(&signId), "signing identity")
("issuer-id,i", po::value<std::string>(&issuer)->default_value(Certificate::DEFAULT_ISSUER_ID.toUri()),
"issuer's ID to be included in the issued certificate name, interpreted as a "
"name component in URI format")
;
po::positional_options_description p;
p.add("request", 1);
po::variables_map vm;
try {
po::store(po::command_line_parser(argc, argv).options(description).positional(p).run(), vm);
po::notify(vm);
}
catch (const std::exception& e) {
std::cerr << "ERROR: " << e.what() << "\n\n"
<< description << std::endl;
return 2;
}
if (vm.count("help") > 0) {
std::cout << description << std::endl;
return 0;
}
security::AdditionalDescription additionalDescription;
for (const auto& info : infos) {
auto pos = info.find(' ');
if (pos == std::string::npos) {
std::cerr << "ERROR: incorrectly formatted info block [" << info << "]" << std::endl;
return 2;
}
std::string key = info.substr(0, pos);
std::string value = info.substr(pos + 1);
additionalDescription.set(key, value);
}
time::system_clock::time_point notBefore;
time::system_clock::time_point notAfter;
if (vm.count("not-before") == 0) {
notBefore = time::system_clock::now();
}
else {
notBefore = time::fromIsoString(notBeforeStr.substr(0, 8) + "T" + notBeforeStr.substr(8, 6));
}
if (vm.count("not-after") == 0) {
notAfter = notBefore + 365_days;
}
else {
notAfter = time::fromIsoString(notAfterStr.substr(0, 8) + "T" + notAfterStr.substr(8, 6));
if (notAfter < notBefore) {
std::cerr << "ERROR: '--not-before' cannot be later than '--not-after'" << std::endl;
return 2;
}
}
auto issuerId = name::Component::fromUri(issuer);
if (issuerId.isImplicitSha256Digest() ||
issuerId.isParametersSha256Digest() ||
issuerId.isKeyword()) {
std::cerr << "ERROR: '" << issuerId << "' cannot be used as issuer ID" << std::endl;
return 2;
}
KeyChain keyChain;
auto request = loadFromFile<Certificate>(requestFile);
security::SigningInfo signer;
if (vm.count("sign-id") > 0) {
signer.setSigningIdentity(signId);
}
if (!additionalDescription.empty()) {
SignatureInfo sigInfo;
sigInfo.addCustomTlv(additionalDescription.wireEncode());
signer.setSignatureInfo(sigInfo);
}
security::MakeCertificateOptions opts;
opts.issuerId = issuerId;
opts.validity.emplace(notBefore, notAfter);
auto cert = keyChain.makeCertificate(request, signer, opts);
{
using namespace security::transform;
bufferSource(cert.wireEncode()) >> base64Encode(true) >> streamSink(std::cout);
}
return 0;
}
} // namespace ndn::ndnsec