133 lines
3.1 KiB
C++
133 lines
3.1 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/**
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* Copyright (C) 2014 Named Data Networking Project
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* See COPYING for copyright and distribution information.
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*/
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#include "face-uri.hpp"
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#include "core/logger.hpp"
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#ifdef HAVE_PCAP
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#include "face/ethernet.hpp"
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#endif // HAVE_PCAP
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#include <boost/regex.hpp>
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NFD_LOG_INIT("FaceUri");
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namespace nfd {
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FaceUri::FaceUri(const std::string& uri)
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{
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if (!parse(uri)) {
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throw Error("Malformed URI: " + uri);
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}
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}
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FaceUri::FaceUri(const char* uri)
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{
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if (!parse(uri)) {
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throw Error("Malformed URI: " + std::string(uri));
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}
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}
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bool
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FaceUri::parse(const std::string& uri)
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{
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m_scheme.clear();
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m_host.clear();
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m_isV6 = false;
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m_port.clear();
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m_path.clear();
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static const boost::regex protocolExp("(\\w+\\d?)://([^/]*)(\\/[^?]*)?");
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boost::smatch protocolMatch;
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if (!boost::regex_match(uri, protocolMatch, protocolExp)) {
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return false;
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}
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m_scheme = protocolMatch[1];
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const std::string& authority = protocolMatch[2];
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m_path = protocolMatch[3];
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// pattern for IPv6 address enclosed in [ ], with optional port number
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static const boost::regex v6Exp("^\\[([a-fA-F0-9:]+)\\](?:\\:(\\d+))?$");
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// pattern for Ethernet address in standard hex-digits-and-colons notation
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static const boost::regex etherExp("^((?:[a-fA-F0-9]{1,2}\\:){5}(?:[a-fA-F0-9]{1,2}))$");
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// pattern for IPv4/hostname/fd/ifname, with optional port number
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static const boost::regex v4HostExp("^([^:]+)(?:\\:(\\d+))?$");
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if (authority.empty()) {
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// UNIX, internal
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}
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else {
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boost::smatch match;
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m_isV6 = boost::regex_match(authority, match, v6Exp);
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if (m_isV6 ||
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boost::regex_match(authority, match, etherExp) ||
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boost::regex_match(authority, match, v4HostExp)) {
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m_host = match[1];
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m_port = match[2];
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}
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else {
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return false;
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}
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}
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NFD_LOG_DEBUG("URI [" << uri << "] parsed into: " <<
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m_scheme << ", " << m_host << ", " << m_port << ", " << m_path);
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return true;
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}
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FaceUri::FaceUri(const boost::asio::ip::tcp::endpoint& endpoint)
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{
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m_isV6 = endpoint.address().is_v6();
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m_scheme = m_isV6 ? "tcp6" : "tcp4";
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m_host = endpoint.address().to_string();
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m_port = boost::lexical_cast<std::string>(endpoint.port());
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}
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FaceUri::FaceUri(const boost::asio::ip::udp::endpoint& endpoint)
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{
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m_isV6 = endpoint.address().is_v6();
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m_scheme = m_isV6 ? "udp6" : "udp4";
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m_host = endpoint.address().to_string();
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m_port = boost::lexical_cast<std::string>(endpoint.port());
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}
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#ifdef HAVE_UNIX_SOCKETS
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FaceUri::FaceUri(const boost::asio::local::stream_protocol::endpoint& endpoint)
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: m_isV6(false)
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{
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m_scheme = "unix";
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m_path = endpoint.path();
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}
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#endif // HAVE_UNIX_SOCKETS
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FaceUri
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FaceUri::fromFd(int fd)
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{
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FaceUri uri;
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uri.m_scheme = "fd";
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uri.m_host = boost::lexical_cast<std::string>(fd);
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return uri;
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}
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#ifdef HAVE_PCAP
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FaceUri::FaceUri(const ethernet::Address& address)
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: m_isV6(false)
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{
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m_scheme = "ether";
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m_host = address.toString(':');
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}
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#endif // HAVE_PCAP
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FaceUri
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FaceUri::fromDev(const std::string& ifname)
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{
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FaceUri uri;
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uri.m_scheme = "dev";
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uri.m_host = ifname;
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return uri;
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}
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} // namespace nfd
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