blob: 5285d28a44b44ca57f8d725cfd4a50f0e9534f68 [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2014-2015, The University of Memphis,
* Regents of the University of California,
* Arizona Board of Regents.
*
* 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 "lsdb-dataset-interest-handler.hpp"
#include "logger.hpp"
#include <ndn-cxx/face.hpp>
#include <ndn-cxx/management/nfd-control-response.hpp>
#include <ndn-cxx/util/regex.hpp>
namespace nlsr {
INIT_LOGGER("LsdbDatasetInterestHandler");
LsdbDatasetInterestHandler::LsdbDatasetInterestHandler(Lsdb& lsdb,
ndn::Face& face,
const ndn::Name& routerName,
ndn::KeyChain& keyChain)
: COMMAND_PREFIX(ndn::Name(routerName).append(Lsdb::NAME_COMPONENT))
, m_face(face)
, m_keyChain(keyChain)
, m_adjacencyLsaPublisher(lsdb, face, COMMAND_PREFIX, keyChain)
, m_coordinateLsaPublisher(lsdb, face, COMMAND_PREFIX, keyChain)
, m_nameLsaPublisher(lsdb, face, COMMAND_PREFIX, keyChain)
, m_lsdbStatusPublisher(lsdb, face, COMMAND_PREFIX, keyChain,
m_adjacencyLsaPublisher,
m_coordinateLsaPublisher,
m_nameLsaPublisher)
{
_LOG_DEBUG("Setting interest filter for: " << COMMAND_PREFIX);
m_face.setInterestFilter(COMMAND_PREFIX,
std::bind(&LsdbDatasetInterestHandler::onInterest, this, _2));
}
void
LsdbDatasetInterestHandler::onInterest(const ndn::Interest& interest)
{
// Does interest match command prefix with one additional component?
if (interest.getName().size() != COMMAND_PREFIX.size() + 1 ||
!COMMAND_PREFIX.isPrefixOf(interest.getName()))
{
_LOG_DEBUG("Received malformed interest: " << interest.getName());
sendErrorResponse(interest.getName(), 400, "Malformed command");
return;
}
ndn::Name::Component command = interest.getName().get(COMMAND_PREFIX.size());
_LOG_TRACE("Received interest with command: " << command);
if (command.equals(AdjacencyLsaPublisher::DATASET_COMPONENT)) {
m_adjacencyLsaPublisher.publish();
}
else if (command.equals(CoordinateLsaPublisher::DATASET_COMPONENT)) {
m_coordinateLsaPublisher.publish();
}
else if (command.equals(NameLsaPublisher::DATASET_COMPONENT)) {
m_nameLsaPublisher.publish();
}
else if (command.equals(LsdbStatusPublisher::DATASET_COMPONENT)) {
m_lsdbStatusPublisher.publish();
}
else {
_LOG_DEBUG("Unsupported command: " << command);
sendErrorResponse(interest.getName(), 501, "Unsupported command");
}
}
void
LsdbDatasetInterestHandler::sendErrorResponse(const ndn::Name& name,
uint32_t code,
const std::string& error)
{
ndn::nfd::ControlResponse response(code, error);
std::shared_ptr<ndn::Data> data = std::make_shared<ndn::Data>(name);
data->setContent(response.wireEncode());
m_keyChain.sign(*data);
m_face.put(*data);
}
} // namespace nlsr