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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2013-2016 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.
*/
#ifndef NDN_SECURITY_PIB_KEY_HPP
#define NDN_SECURITY_PIB_KEY_HPP
#include "../v1/identity-certificate.hpp"
#include "certificate-container.hpp"
namespace ndn {
namespace security {
class PibImpl;
class Identity;
class KeyContainer;
/**
* @brief represents a key
*
* Key is at the second level in PIB's Identity-Key-Certificate hierarchy.
* An Key has a Name (identity + keyId), and contains one or more certificates,
* one of which is set as the default certificate of this key. A certificate
* can be directly accessed from a Key object.
*
* @throw PibImpl::Error when underlying implementation has non-semantic error.
*/
class Key
{
public:
friend class Identity;
friend class KeyContainer;
friend class KeyChain;
public:
/**
* @brief Default Constructor
*
* Key created using this default constructor is just a place holder.
* It must obtain an actual instance from Identity::getKey(...). A typical
* usage would be for exception handling:
*
* Key key;
* try {
* key = Identity.getKey(...);
* }
* catch (Pib::Error&) {
* ...
* }
*
* A Key instance created using the constructor is invalid. Calling a
* member method on an invalid Key instance may cause an std::domain_error.
*/
Key();
/// @brief Get the name of the key.
const Name&
getName() const;
/// @brief Get the name of the belonging identity.
const Name&
getIdentity() const;
/// @brief Get the key id of the key.
const name::Component&
getKeyId() const;
/// @brief Get public key
const v1::PublicKey&
getPublicKey() const;
/**
* @brief Get a certificate.
*
* @return the certificate
* @throws Pib::Error if the certificate does not exist.
*/
v1::IdentityCertificate
getCertificate(const Name& certName) const;
/// @brief Get all the certificates for this key.
const CertificateContainer&
getCertificates() const;
/**
* @brief Get the default certificate for this Key.
*
* @throws Pib::Error if the default certificate does not exist.
*/
const v1::IdentityCertificate&
getDefaultCertificate() const;
/// @brief Check if the Key instance is valid
operator bool() const;
/// @brief Check if the Key instance is invalid
bool
operator!() const;
NDN_CXX_PUBLIC_WITH_TESTS_ELSE_PRIVATE: // write operations should be private
/**
* @brief Add a certificate.
*
* @param certificate The certificate to add.
*/
void
addCertificate(const v1::IdentityCertificate& certificate);
/**
* @brief Remove a certificate.
*
* @param certName The name of the certificate to delete.
*/
void
removeCertificate(const Name& certName);
/**
* @brief Set the default certificate.
*
* @param certName The name of the default certificate of the key.
* @return the default certificate
* @throws Pib::Error if the certificate does not exist.
*/
const v1::IdentityCertificate&
setDefaultCertificate(const Name& certName);
/**
* @brief Set the default certificate.
*
* If the certificate does not exist, add it and set it as the default certificate of the key.
* If the certificate exists, simply set it as the default certificate of the key.
*
* @param certificate The certificate to add.
* @return the default certificate
*/
const v1::IdentityCertificate&
setDefaultCertificate(const v1::IdentityCertificate& certificate);
NDN_CXX_PUBLIC_WITH_TESTS_ELSE_PRIVATE:
/**
* @brief Create a Key with @p identityName and @p keyId.
*
* If the key/identity does not exist in the backend, create it in backend.
*
* @param identityName The name of the Identity.
* @param keyId The key id of the key.
* @param publicKey The public key to add.
* @param impl The actual backend implementation.
*/
Key(const Name& identityName, const name::Component& keyId,
const v1::PublicKey& publicKey, shared_ptr<PibImpl> impl);
/**
* @brief Create an KeyEntry with @p identityName and @p keyId.
*
* @param identityName The name of the Identity.
* @param keyId The key id of the key.
* @param impl The actual backend implementation.
* @throws Pib::Error if the key does not exist.
*/
Key(const Name& identityName, const name::Component& keyId, shared_ptr<PibImpl> impl);
/**
* @brief Check the validity of this instance
*
* @throws std::domain_error if the instance is invalid
*/
void
validityCheck() const;
private:
Name m_id;
name::Component m_keyId;
Name m_keyName;
v1::PublicKey m_key;
mutable bool m_hasDefaultCertificate;
mutable v1::IdentityCertificate m_defaultCertificate;
mutable bool m_needRefreshCerts;
mutable CertificateContainer m_certificates;
shared_ptr<PibImpl> m_impl;
};
} // namespace security
} // namespace ndn
#endif // NDN_SECURITY_PIB_PIB_HPP