C++ Name::isPrefixOf方法代码示例

 bool
 checkRelation(const Relation& relation, const Name& name1, const Name& name2)
 {
   switch (relation)
     {
     case RELATION_EQUAL:
       return (name1 == name2);
     case RELATION_IS_PREFIX_OF:
       return name1.isPrefixOf(name2);
     case RELATION_IS_STRICT_PREFIX_OF:
       return (name1.isPrefixOf(name2) && name1 != name2);
     default:
       return false;
     }
 }

void
DummyClientFace::enableRegistrationReply()
{
  onSendInterest.connect([this] (const Interest& interest) {
    static const Name localhostRegistration("/localhost/nfd/rib");
    if (!localhostRegistration.isPrefixOf(interest.getName()))
      return;

    nfd::ControlParameters params(interest.getName().get(-5).blockFromValue());
    params.setFaceId(1);
    params.setOrigin(0);
    if (interest.getName().get(3) == name::Component("register")) {
      params.setCost(0);
    }

    nfd::ControlResponse resp;
    resp.setCode(200);
    resp.setBody(params.wireEncode());

    shared_ptr<Data> data = make_shared<Data>(interest.getName());
    data->setContent(resp.wireEncode());

    m_keyChain.sign(*data, security::SigningInfo(security::SigningInfo::SIGNER_TYPE_SHA256));

    this->getIoService().post([this, data] { this->receive(*data); });
  });
}

void
AutoPrefixPropagator::afterInsertRibEntry(const Name& prefix)
{
  if (LOCAL_REGISTRATION_PREFIX.isPrefixOf(prefix)) {
    NFD_LOG_INFO("local registration only for " << prefix);
    return;
  }

  if (prefix == LINK_LOCAL_NFD_PREFIX) {
    NFD_LOG_INFO("this is a prefix registered by some hub: " << prefix);

    m_hasConnectedHub = true;
    return afterHubConnect();
  }

  auto propagateParameters = getPrefixPropagationParameters(prefix);
  if (!propagateParameters.isValid) {
    NFD_LOG_INFO("no signing identity available for: " << prefix);
    return;
  }

  auto entryIt = m_propagatedEntries.find(propagateParameters.parameters.getName());
  if (entryIt != m_propagatedEntries.end()) {
    // in addition to PROPAGATED and PROPAGATE_FAIL, the state may also be NEW,
    // if its propagation was suspended because there was no connectivity to the Hub.
    NFD_LOG_INFO("prefix has already been propagated: "
                 << propagateParameters.parameters.getName());
    return;
  }

  afterRibInsert(propagateParameters.parameters, propagateParameters.options);
}

AutoPrefixPropagator::PrefixPropagationParameters
AutoPrefixPropagator::getPrefixPropagationParameters(const Name& localRibPrefix)
{
  // get all identities from the KeyChain
  std::vector<Name> identities;
  m_keyChain.getAllIdentities(identities, false); // get all except the default
  identities.push_back(m_keyChain.getDefaultIdentity()); // get the default

  // shortest prefix matching to all identies.
  Name propagatedPrefix, signingIdentity;
  bool isFound = false;
  for (auto&& i : identities) {
    Name prefix = !i.empty() && IGNORE_COMMPONENT == i.at(-1) ? i.getPrefix(-1) : i;
    if (prefix.isPrefixOf(localRibPrefix) && (!isFound || i.size() < signingIdentity.size())) {
      isFound = true;
      propagatedPrefix = prefix;
      signingIdentity = i;
    }
  }

  PrefixPropagationParameters propagateParameters;
  if (!isFound) {
    propagateParameters.isValid = false;
  }
  else {
    propagateParameters.isValid = true;
    propagateParameters.parameters = m_controlParameters;
    propagateParameters.options = m_commandOptions;
    propagateParameters.parameters.setName(propagatedPrefix);
    propagateParameters.options.setSigningInfo(signingByIdentity(signingIdentity));
  }

  return propagateParameters;
}

BOOST_FIXTURE_TEST_CASE(EcdsaSigningByIdentityNoCert, IdentityManagementFixture)
{
  Data data("/test/data");

  Name nonExistingIdentity = Name("/non-existing/identity").appendVersion();

  BOOST_CHECK_NO_THROW(m_keyChain.sign(data, signingByIdentity(nonExistingIdentity)));
  BOOST_CHECK_EQUAL(data.getSignature().getType(),
                    KeyChain::getSignatureType(KeyChain::DEFAULT_KEY_PARAMS.getKeyType(),
                                               DigestAlgorithm::SHA256));
  BOOST_CHECK(nonExistingIdentity.isPrefixOf(data.getSignature().getKeyLocator().getName()));

  Name ecdsaIdentity = Name("/ndn/test/ecdsa").appendVersion();
  Name ecdsaKeyName = m_keyChain.generateEcdsaKeyPairAsDefault(ecdsaIdentity, false, 256);
  BOOST_CHECK_NO_THROW(m_keyChain.sign(data, signingByIdentity(ecdsaIdentity)));
  BOOST_CHECK_EQUAL(data.getSignature().getType(),
                    KeyChain::getSignatureType(EcdsaKeyParams().getKeyType(), DigestAlgorithm::SHA256));
  BOOST_CHECK(ecdsaIdentity.isPrefixOf(data.getSignature().getKeyLocator().getName()));
}

std::list<shared_ptr<RibEntry>>
Rib::findDescendantsForNonInsertedName(const Name& prefix) const
{
  std::list<shared_ptr<RibEntry>> children;

  for (std::pair<Name, shared_ptr<RibEntry>> pair : m_rib) {
    if (prefix.isPrefixOf(pair.first)) {
      children.push_back(pair.second);
    }
  }

  return children;
}

                void OnInterest( shared_ptr< const Interest> interest ) override
                {
                        static VerifierProducer verifier;
                        static Name             prefix( "ndn/internal/verify-tag" );

                        App::OnInterest( interest );

                        if( prefix.isPrefixOf( interest->getName() ) )
                        {
                            auto data = verifier.makeData( interest );
                            if( data != NULL )
                                m_face->onReceiveData( *data );
                        }
                };

std::pair<int64_t,Name>
Index::findFirstEntry(const Name& prefix,
                      IndexContainer::const_iterator startingPoint) const
{
  BOOST_ASSERT(startingPoint != m_indexContainer.end());
  if (prefix.isPrefixOf(startingPoint->getName()))
    {
      return std::make_pair(startingPoint->getId(), startingPoint->getName());
    }
  else
    {
      return std::make_pair(0, Name());
    }
}

shared_ptr<fw::Strategy>
StrategyChoice::getStrategy(const Name& strategyName) const
{
  shared_ptr<fw::Strategy> candidate;
  for (StrategyInstanceTable::const_iterator it = m_strategyInstances.lower_bound(strategyName);
       it != m_strategyInstances.end() && strategyName.isPrefixOf(it->first); ++it) {
    switch (it->first.size() - strategyName.size()) {
    case 0: // exact match
      return it->second;
    case 1: // unversioned strategyName matches versioned strategy
      candidate = it->second;
      break;
    }
  }
  return candidate;
}

shared_ptr<const Data>
InMemoryStorage::find(const Name& name)
{
  auto it = m_cache.get<byFullName>().lower_bound(name);

  // if not found, return null
  if (it == m_cache.get<byFullName>().end()) {
    return nullptr;
  }

  // if the given name is not the prefix of the lower_bound, return null
  if (!name.isPrefixOf((*it)->getFullName())) {
    return nullptr;
  }

  afterAccess(*it);
  return ((*it)->getData()).shared_from_this();
}

void
AutoPrefixPropagator::afterEraseRibEntry(const Name& prefix)
{
  if (LOCAL_REGISTRATION_PREFIX.isPrefixOf(prefix)) {
    NFD_LOG_INFO("local unregistration only for " << prefix);
    return;
  }

  if (prefix == LINK_LOCAL_NFD_PREFIX) {
    NFD_LOG_INFO("disconnected to hub with prefix: " << prefix);

    m_hasConnectedHub = false;
    return afterHubDisconnect();
  }

  auto propagateParameters = getPrefixPropagationParameters(prefix);
  if (!propagateParameters.isValid) {
    NFD_LOG_INFO("no signing identity available for: " << prefix);
    return;
  }

  auto entryIt = m_propagatedEntries.find(propagateParameters.parameters.getName());
  if (entryIt == m_propagatedEntries.end()) {
    NFD_LOG_INFO("prefix has not been propagated yet: "
                 << propagateParameters.parameters.getName());
    return;
  }

  for (auto&& ribTableEntry : m_rib) {
    if (propagateParameters.parameters.getName().isPrefixOf(ribTableEntry.first) &&
        propagateParameters.options.getSigningInfo().getSignerName() ==
        getPrefixPropagationParameters(ribTableEntry.first)
          .options.getSigningInfo().getSignerName()) {
      NFD_LOG_INFO("should be kept for another RIB entry: " << ribTableEntry.first);
      return;
    }
  }

  afterRibErase(propagateParameters.parameters.unsetCost(), propagateParameters.options);
}

bool
ManagementTool::matchCertificate(const Name& certName, const Name& identity)
{
  if (!m_keyChain.doesCertificateExist(certName)) {
    NDNS_LOG_WARN(certName.toUri() << " is not presented in KeyChain");
    return false;
  }

  //check its public key information
  shared_ptr<IdentityCertificate> cert = m_keyChain.getCertificate(certName);
  Name keyName = cert->getPublicKeyName();

  if (!identity.isPrefixOf(keyName) || identity.size()!=keyName.size()-1) {
    NDNS_LOG_WARN(keyName.toUri() << " is not a key of " << identity.toUri());
    return false;
  }

  if (!m_keyChain.doesKeyExistInTpm(keyName, KEY_CLASS_PRIVATE)) {
    NDNS_LOG_WARN("Private key: " << keyName.toUri() << " is not presented in KeyChain");
    return false;
  }

  return true;
}

void
InMemoryStorage::erase(const Name& prefix, const bool isPrefix)
{
  if (isPrefix) {
    auto it = m_cache.get<byFullName>().lower_bound(prefix);
    while (it != m_cache.get<byFullName>().end() && prefix.isPrefixOf((*it)->getName())) {
      // let derived class do something with the entry
      beforeErase(*it);
      it = freeEntry(it);
    }
  }
  else {
    auto it = m_cache.get<byFullName>().find(prefix);
    if (it == m_cache.get<byFullName>().end())
      return;

    // let derived class do something with the entry
    beforeErase(*it);
    freeEntry(it);
  }

  if (m_freeEntries.size() > (2 * size()))
    setCapacity(getCapacity() / 2);
}

void
RemoteRegistrator::unregisterPrefix(const Name& prefix)
{
  if (prefix == REMOTE_HUB_PREFIX)
    {
      NFD_LOG_INFO("disconnected to hub with prefix: " << prefix);

      // for phase 1: suppose there is at most one hub connected.
      // if the hub prefix has been unregistered locally, there may
      // be no connected hub.
      m_hasConnectedHub = false;

      clearRefreshEvents();
      return;
    }

  if (!m_hasConnectedHub)
    {
      NFD_LOG_INFO("no hub connected when unregistering " << prefix);
      return;
    }

  std::pair<Name, size_t> identity = findIdentityForRegistration(prefix);

  if (0 == identity.second)
    {
      NFD_LOG_INFO("no proper identity found for unregistering " << prefix);
      return;
    }

  Name prefixForRegistration;
  if (identity.first.size() == identity.second)
    {
      prefixForRegistration = identity.first;
    }
  else
    {
      prefixForRegistration = identity.first.getPrefix(-1);
    }

  RegisteredEntryIt iRegEntry = m_regEntries.find(prefixForRegistration);
  if (m_regEntries.end() == iRegEntry)
    {
      NFD_LOG_INFO("no existing entry found when unregistering " << prefix);
      return;
    }

  for (auto&& entry : m_rib)
    {
      if (prefixForRegistration.isPrefixOf(entry.first) &&
          findIdentityForRegistration(entry.first) == identity)
        {
          NFD_LOG_INFO("this identity should be kept for other rib entry: "
                       << entry.first);
          return;
        }
    }

  scheduler::cancel(iRegEntry->second);
  m_regEntries.erase(iRegEntry);

  // make copies of m_controlParameters and m_commandOptions to
  // avoid unreasonable overwriting during concurrent registration
  // and unregistration.
  ControlParameters parameters = m_controlParameters;
  CommandOptions    options    = m_commandOptions;

  startUnregistration(parameters.setName(prefixForRegistration).unsetCost(),
                      options.setSigningIdentity(identity.first),
                      m_nRetries);
}

//.........这里部分代码省略.........
        {
          std::cerr << "not-before is later than not-after" << std::endl;
          return 1;
        }
    }

  if (vm.count("request") == 0)
    {
      std::cerr << "request file must be specified" << std::endl;
      return 1;
    }

  shared_ptr<IdentityCertificate> selfSignedCertificate
    = getIdentityCertificate(requestFile);

  if (!static_cast<bool>(selfSignedCertificate))
    {
      std::cerr << "ERROR: input error" << std::endl;
      return 1;
    }

  KeyChain keyChain;

  Name keyName = selfSignedCertificate->getPublicKeyName();
  Name signIdName;
  Name certName;

  if (!hasSignId)
    signIdName = keyChain.getDefaultIdentity();
  else
    signIdName = Name(signId);


  if (signIdName.isPrefixOf(keyName))
    {
      // if signee's namespace is a sub-namespace of signer, for example, signer's namespace is
      // /ndn/test, signee's namespace is /ndn/test/alice, the generated certificate name is
      // /ndn/test/KEY/alice/ksk-1234/ID-CERT/%01%02
      certName.append(signIdName)
        .append("KEY")
        .append(keyName.getSubName(signIdName.size()))
        .append("ID-CERT")
        .appendVersion();
    }
  else
    {
      // if signee's namespace is not a sub-namespace of signer, for example, signer's namespace is
      // /ndn/test, signee's namespace is /ndn/ucla/bob, the generated certificate name is
      // /ndn/ucla/bob/KEY/ksk-1234/ID-CERT/%01%02
      certName.append(keyName.getPrefix(-1))
        .append("KEY")
        .append(keyName.get(-1))
        .append("ID-CERT")
        .appendVersion();
    }

  Block wire;

  if (!isNack)
    {
      if (vm.count("subject-name") == 0)
        {
          std::cerr << "subject_name must be specified" << std::endl;
          return 1;
        }