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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2014-2017, The University of Memphis,
* Regents of the University of California
*
* This file is part of NLSR (Named-data Link State Routing).
* See AUTHORS.md for complete list of NLSR authors and contributors.
*
* NLSR is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Foundation,
* either version 3 of the License, or (at your option) any later version.
*
* NLSR 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* NLSR, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
**/
#include "validator.hpp"
namespace nlsr {
void
Validator::checkPolicy(const ndn::Data& data, int nSteps, const ndn::OnDataValidated& onValidated,
const ndn::OnDataValidationFailed& onValidationFailed,
std::vector<shared_ptr<ndn::ValidationRequest>>& nextSteps)
{
if (!m_shouldValidate) {
onValidated(data.shared_from_this());
}
else {
ValidatorConfig::checkPolicy(data, nSteps, onValidated, onValidationFailed, nextSteps);
}
}
void
Validator::afterCheckPolicy(const NextSteps& nextSteps, const OnFailure& onFailure)
{
if (m_face == nullptr) {
onFailure("Require more information to validate the packet!");
return;
}
for (const std::shared_ptr<ndn::ValidationRequest>& request : nextSteps) {
ndn::Interest& interest = request->m_interest;
// Look for certificate in permanent storage
std::shared_ptr<const ndn::IdentityCertificate> cert = m_certStore.find(interest.getName());
if (cert != nullptr) {
// If the certificate is found, no reason to express interest
std::shared_ptr<ndn::Data> data = std::make_shared<ndn::Data>(interest.getName());
data->setContent(cert->wireEncode());
Validator::onData(interest, *data, request);
}
else {
// Prepend broadcast prefix to interest name
ndn::Name broadcastName = m_broadcastPrefix;
broadcastName.append(interest.getName());
interest.setName(broadcastName);
// Attempt to fetch the certificate
m_face->expressInterest(interest,
std::bind(&Validator::onData, this, _1, _2, request),
std::bind(&Validator::onTimeout, // Nack
this, _1, request->m_nRetries,
onFailure,
request),
std::bind(&Validator::onTimeout,
this, _1, request->m_nRetries,
onFailure,
request));
}
}
}
std::shared_ptr<const ndn::Data>
Validator::preCertificateValidation(const ndn::Data& data)
{
std::shared_ptr<ndn::Data> internalData = std::make_shared<ndn::Data>();
internalData->wireDecode(data.getContent().blockFromValue());
return internalData;
}
} // namespace nlsr