sec-rule-specific.cpp

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

#include "sec-rule-specific.hpp"
#include "signature-sha256-with-rsa.hpp"

namespace ndn {

SecRuleSpecific::SecRuleSpecific(shared_ptr<Regex> dataRegex,
                                 shared_ptr<Regex> signerRegex)
  : SecRule(true)
  , m_dataRegex(dataRegex)
  , m_signerRegex(signerRegex)
  , m_isExempted(false)
{
}

SecRuleSpecific::SecRuleSpecific(shared_ptr<Regex> dataRegex)
  : SecRule(true)
  , m_dataRegex(dataRegex)
  , m_isExempted(true)
{
}

SecRuleSpecific::SecRuleSpecific(const SecRuleSpecific& rule)
  : SecRule(true)
  , m_dataRegex(rule.m_dataRegex)
  , m_signerRegex(rule.m_signerRegex)
  , m_isExempted(rule.m_isExempted)
{
}

bool
SecRuleSpecific::matchDataName(const Data& data)
{
  return m_dataRegex->match(data.getName());
}

bool
SecRuleSpecific::matchSignerName(const Data& data)
{
  if (m_isExempted)
    return true;

  try
    {
      if (!data.getSignature().hasKeyLocator())
        return false;

      const KeyLocator& keyLocator = data.getSignature().getKeyLocator();
      if (keyLocator.getType() != KeyLocator::KeyLocator_Name)
        return false;

      const Name& signerName = keyLocator.getName();
      return m_signerRegex->match(signerName);
    }
  catch (tlv::Error& e)
    {
      return false;
    }
  catch (RegexMatcher::Error& e)
    {
      return false;
    }
}

bool
SecRuleSpecific::satisfy(const Data& data)
{
  return (matchDataName(data) && matchSignerName(data)) ? true : false;
}

bool
SecRuleSpecific::satisfy(const Name& dataName, const Name& signerName)
{
  bool isSignerMatched = m_isExempted || m_signerRegex->match(signerName);
  return m_dataRegex->match(dataName) && isSignerMatched;
}

} // namespace ndn