manager-base.cpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
#include "manager-base.hpp"

namespace nfd {

using ndn::mgmt::ValidateParameters;
using ndn::mgmt::Authorization;

ManagerBase::ManagerBase(Dispatcher& dispatcher,
                         CommandValidator& validator,
                         const std::string& module)
  : m_dispatcher(dispatcher)
  , m_validator(validator)
  , m_mgmtModuleName(module)
{
  m_validator.addSupportedPrivilege(module);
}

void
ManagerBase::registerStatusDatasetHandler(const std::string& verb,
                                          const ndn::mgmt::StatusDatasetHandler& handler)
{
  m_dispatcher.addStatusDataset(makeRelPrefix(verb),
                                ndn::mgmt::makeAcceptAllAuthorization(),
                                handler);
}

ndn::mgmt::PostNotification
ManagerBase::registerNotificationStream(const std::string& verb)
{
  return m_dispatcher.addNotificationStream(makeRelPrefix(verb));
}

void
ManagerBase::authorize(const Name& prefix, const Interest& interest,
                       const ndn::mgmt::ControlParameters* params,
                       ndn::mgmt::AcceptContinuation accept,
                       ndn::mgmt::RejectContinuation reject)
{
  BOOST_ASSERT(params != nullptr);
  BOOST_ASSERT(typeid(*params) == typeid(ndn::nfd::ControlParameters));

  m_validator.validate(interest,
                       bind(&ManagerBase::extractRequester, this, interest, accept),
                       bind([&] { reject(ndn::mgmt::RejectReply::STATUS403); }));
}

void
ManagerBase::extractRequester(const Interest& interest,
                              ndn::mgmt::AcceptContinuation accept)
{
  const Name& interestName = interest.getName();

  try {
    ndn::SignatureInfo sigInfo(interestName.at(ndn::signed_interest::POS_SIG_INFO).blockFromValue());
    if (!sigInfo.hasKeyLocator() ||
        sigInfo.getKeyLocator().getType() != ndn::KeyLocator::KeyLocator_Name) {
      return accept("");
    }

    accept(sigInfo.getKeyLocator().getName().toUri());
  }
  catch (const tlv::Error&) {
    accept("");
  }
}

bool
ManagerBase::validateParameters(const nfd::ControlCommand& command, const ndn::mgmt::ControlParameters& parameters)
{
  BOOST_ASSERT(dynamic_cast<const ControlParameters*>(&parameters) != nullptr);

  try {
    command.validateRequest(static_cast<const ControlParameters&>(parameters));
  }
  catch (const ControlCommand::ArgumentError&) {
    return false;
  }
  return true;
}

void
ManagerBase::handleCommand(shared_ptr<nfd::ControlCommand> command,
                           const ControlCommandHandler& handler,
                           const Name& prefix, const Interest& interest,
                           const ndn::mgmt::ControlParameters& params,
                           ndn::mgmt::CommandContinuation done)
{
  BOOST_ASSERT(dynamic_cast<const ControlParameters*>(&params) != nullptr);
  ControlParameters parameters = static_cast<const ControlParameters&>(params);
  command->applyDefaultsToRequest(parameters);
  handler(*command, prefix, interest, parameters, done);
}


} // namespace nfd