face-uri.hpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013-2019 Regents of the University of California,
 *                         Arizona Board of Regents,
 *                         Colorado State University,
 *                         University Pierre & Marie Curie, Sorbonne University,
 *                         Washington University in St. Louis,
 *                         Beijing Institute of Technology,
 *                         The University of Memphis.
 *
 * 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_NET_FACE_URI_HPP
#define NDN_NET_FACE_URI_HPP

#include "ndn-cxx/detail/asio-fwd.hpp"
#include "ndn-cxx/net/ethernet.hpp"
#include "ndn-cxx/util/time.hpp"

#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/ip/udp.hpp>
#include <boost/asio/local/stream_protocol.hpp>

namespace ndn {

class FaceUri
{
public:
  class Error : public std::invalid_argument
  {
  public:
    using std::invalid_argument::invalid_argument;
  };

  FaceUri();

  explicit
  FaceUri(const std::string& uri);

  // This overload is needed so that calls with string literal won't be
  // resolved to boost::asio::local::stream_protocol::endpoint overload.
  explicit
  FaceUri(const char* uri);

  NDN_CXX_NODISCARD bool
  parse(const std::string& uri);

public: // scheme-specific construction
  explicit
  FaceUri(const boost::asio::ip::udp::endpoint& endpoint);

  explicit
  FaceUri(const boost::asio::ip::tcp::endpoint& endpoint);

  FaceUri(const boost::asio::ip::tcp::endpoint& endpoint, const std::string& scheme);

#ifdef BOOST_ASIO_HAS_LOCAL_SOCKETS
  explicit
  FaceUri(const boost::asio::local::stream_protocol::endpoint& endpoint);
#endif // BOOST_ASIO_HAS_LOCAL_SOCKETS

  static FaceUri
  fromFd(int fd);

  explicit
  FaceUri(const ethernet::Address& address);

  static FaceUri
  fromDev(const std::string& ifname);

  static FaceUri
  fromUdpDev(const boost::asio::ip::udp::endpoint& endpoint, const std::string& ifname);

public: // getters
  const std::string&
  getScheme() const
  {
    return m_scheme;
  }

  const std::string&
  getHost() const
  {
    return m_host;
  }

  const std::string&
  getPort() const
  {
    return m_port;
  }

  const std::string&
  getPath() const
  {
    return m_path;
  }

  std::string
  toString() const;

public: // canonical FaceUri
  static bool
  canCanonize(const std::string& scheme);

  bool
  isCanonical() const;

  typedef function<void(const FaceUri&)> CanonizeSuccessCallback;
  typedef function<void(const std::string& reason)> CanonizeFailureCallback;

  void
  canonize(const CanonizeSuccessCallback& onSuccess,
           const CanonizeFailureCallback& onFailure,
           boost::asio::io_service& io,
           time::nanoseconds timeout) const;

private: // non-member operators
  // NOTE: the following "hidden friend" operators are available via
  //       argument-dependent lookup only and must be defined inline.

  friend bool
  operator==(const FaceUri& lhs, const FaceUri& rhs)
  {
    return !(lhs != rhs);
  }

  friend bool
  operator!=(const FaceUri& lhs, const FaceUri& rhs)
  {
    return lhs.m_isV6 != rhs.m_isV6 ||
           lhs.m_scheme != rhs.m_scheme ||
           lhs.m_host != rhs.m_host ||
           lhs.m_port != rhs.m_port ||
           lhs.m_path != rhs.m_path;
  }

private:
  std::string m_scheme;
  std::string m_host;
  std::string m_port;
  std::string m_path;
  bool m_isV6;

  friend std::ostream& operator<<(std::ostream& os, const FaceUri& uri);
};

std::ostream&
operator<<(std::ostream& os, const FaceUri& uri);

} // namespace ndn

#endif // NDN_NET_FACE_URI_HPP