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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2013-2014 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.
*
* @author Yingdi Yu <http://irl.cs.ucla.edu/~yingdi/>
*/
#ifndef NDN_SECURITY_CONF_RULE_HPP
#define NDN_SECURITY_CONF_RULE_HPP
#include "filter.hpp"
#include "checker.hpp"
namespace ndn {
namespace security {
namespace conf {
template<class Packet>
class Rule
{
public:
explicit
Rule(const std::string& id)
: m_id(id)
{
}
virtual
~Rule()
{
}
const std::string&
getId()
{
return m_id;
}
void
addFilter(const shared_ptr<Filter>& filter)
{
m_filters.push_back(filter);
}
void
addChecker(const shared_ptr<Checker>& checker)
{
m_checkers.push_back(checker);
}
bool
match(const Packet& packet)
{
if (m_filters.empty())
return true;
for (FilterList::iterator it = m_filters.begin();
it != m_filters.end(); it++)
{
if (!(*it)->match(packet))
return false;
}
return true;
}
/**
* @brief check if packet satisfies certain condition
*
* @param packet The packet
* @param onValidated Callback function which is called when packet is immediately valid
* @param onValidationFailed Call function which is called when packet is immediately invalid
* @return -1 if packet is immediately invalid (onValidationFailed has been called)
* 1 if packet is immediately valid (onValidated has been called)
* 0 if further signature verification is needed.
*/
template<class ValidatedCallback, class ValidationFailureCallback>
int8_t
check(const Packet& packet,
const ValidatedCallback& onValidated,
const ValidationFailureCallback& onValidationFailed)
{
for (CheckerList::iterator it = m_checkers.begin();
it != m_checkers.end(); it++)
{
int8_t result = (*it)->check(packet, onValidated, onValidationFailed);
if (result >= 0)
return result;
}
return -1;
}
private:
typedef std::vector<shared_ptr<Filter> > FilterList;
typedef std::vector<shared_ptr<Checker> > CheckerList;
std::string m_id;
FilterList m_filters;
CheckerList m_checkers;
};
} // namespace conf
} // namespace security
} // namespace ndn
#endif // NDN_SECURITY_CONF_RULE_HPP