identity.hpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013-2023 Regents of the University of California.
 *
 * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
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 * terms of the GNU Lesser General Public License as published by the Free Software
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 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
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#ifndef NDN_CXX_SECURITY_PIB_IDENTITY_HPP
#define NDN_CXX_SECURITY_PIB_IDENTITY_HPP
 
#include "ndn-cxx/security/pib/key-container.hpp"
 
namespace ndn::security {
 
class KeyChain;
 
namespace pib {
 
class IdentityContainer;
class IdentityImpl;
 
class Identity : private boost::equality_comparable<Identity>
{
public:
  Identity() noexcept;
 
  const Name&
  getName() const;
 
  Key
  getKey(const Name& keyName) const;
 
  const KeyContainer&
  getKeys() const;
 
  Key
  getDefaultKey() const;
 
  explicit
  operator bool() const noexcept;
 
NDN_CXX_PUBLIC_WITH_TESTS_ELSE_PRIVATE: // write operations are accessible only by KeyChain
  Key
  addKey(span<const uint8_t> key, const Name& keyName) const;
 
  void
  removeKey(const Name& keyName) const;
 
  Key
  setDefaultKey(const Name& keyName) const;
 
  Key
  setDefaultKey(span<const uint8_t> key, const Name& keyName) const;
 
NDN_CXX_PUBLIC_WITH_TESTS_ELSE_PRIVATE: // private interface for IdentityContainer
  explicit
  Identity(weak_ptr<IdentityImpl> impl) noexcept;
 
private:
  shared_ptr<IdentityImpl>
  lock() const;
 
  bool
  equals(const Identity& other) const noexcept;
 
  // NOTE
  // The following "hidden friend" non-member operators are available
  // via argument-dependent lookup only and must be defined inline.
  // boost::equality_comparable provides != operator.
 
  friend bool
  operator==(const Identity& lhs, const Identity& rhs) noexcept
  {
    return lhs.equals(rhs);
  }
 
  friend std::ostream&
  operator<<(std::ostream& os, const Identity& id)
  {
    if (id)
      return os << id.getName();
    else
      return os << "(empty)";
  }
 
private:
  weak_ptr<IdentityImpl> m_impl;
 
  friend KeyChain;
  friend IdentityContainer;
};
 
} // namespace pib
 
using pib::Identity;
 
} // namespace ndn::security
 
#endif // NDN_CXX_SECURITY_PIB_IDENTITY_HPP