util: import Ethernet and FaceUri
refs #1994
Change-Id: I63a459c0620f9c229e690df05de1333a8dea2bdd
diff --git a/src/util/face-uri.cpp b/src/util/face-uri.cpp
new file mode 100644
index 0000000..ad0ee1f
--- /dev/null
+++ b/src/util/face-uri.cpp
@@ -0,0 +1,199 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2014 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.
+ */
+
+#include "face-uri.hpp"
+
+#include <boost/concept_check.hpp>
+#include <boost/regex.hpp>
+
+namespace ndn {
+namespace util {
+
+BOOST_CONCEPT_ASSERT((boost::EqualityComparable<FaceUri>));
+
+FaceUri::FaceUri()
+ : m_isV6(false)
+{
+}
+
+FaceUri::FaceUri(const std::string& uri)
+{
+ if (!parse(uri)) {
+ throw Error("Malformed URI: " + uri);
+ }
+}
+
+FaceUri::FaceUri(const char* uri)
+{
+ if (!parse(uri)) {
+ throw Error("Malformed URI: " + std::string(uri));
+ }
+}
+
+bool
+FaceUri::parse(const std::string& uri)
+{
+ m_scheme.clear();
+ m_host.clear();
+ m_isV6 = false;
+ m_port.clear();
+ m_path.clear();
+
+ static const boost::regex protocolExp("(\\w+\\d?)://([^/]*)(\\/[^?]*)?");
+ boost::smatch protocolMatch;
+ if (!boost::regex_match(uri, protocolMatch, protocolExp)) {
+ return false;
+ }
+ m_scheme = protocolMatch[1];
+ const std::string& authority = protocolMatch[2];
+ m_path = protocolMatch[3];
+
+ // pattern for IPv6 address enclosed in [ ], with optional port number
+ static const boost::regex v6Exp("^\\[([a-fA-F0-9:]+)\\](?:\\:(\\d+))?$");
+ // pattern for Ethernet address in standard hex-digits-and-colons notation
+ static const boost::regex etherExp("^\\[((?:[a-fA-F0-9]{1,2}\\:){5}(?:[a-fA-F0-9]{1,2}))\\]$");
+ // pattern for IPv4-mapped IPv6 address, with optional port number
+ static const boost::regex v4MappedV6Exp("^\\[::ffff:(\\d+(?:\\.\\d+){3})\\](?:\\:(\\d+))?$");
+ // pattern for IPv4/hostname/fd/ifname, with optional port number
+ static const boost::regex v4HostExp("^([^:]+)(?:\\:(\\d+))?$");
+
+ if (authority.empty()) {
+ // UNIX, internal
+ }
+ else {
+ boost::smatch match;
+ m_isV6 = boost::regex_match(authority, match, v6Exp);
+ if (m_isV6 ||
+ boost::regex_match(authority, match, etherExp) ||
+ boost::regex_match(authority, match, v4MappedV6Exp) ||
+ boost::regex_match(authority, match, v4HostExp)) {
+ m_host = match[1];
+ m_port = match[2];
+ }
+ else {
+ return false;
+ }
+ }
+
+ return true;
+}
+
+FaceUri::FaceUri(const boost::asio::ip::udp::endpoint& endpoint)
+{
+ m_isV6 = endpoint.address().is_v6();
+ m_scheme = m_isV6 ? "udp6" : "udp4";
+ m_host = endpoint.address().to_string();
+ m_port = boost::lexical_cast<std::string>(endpoint.port());
+}
+
+FaceUri::FaceUri(const boost::asio::ip::tcp::endpoint& endpoint)
+{
+ m_isV6 = endpoint.address().is_v6();
+ m_scheme = m_isV6 ? "tcp6" : "tcp4";
+ m_host = endpoint.address().to_string();
+ m_port = boost::lexical_cast<std::string>(endpoint.port());
+}
+
+FaceUri::FaceUri(const boost::asio::ip::tcp::endpoint& endpoint, const std::string& scheme)
+ : m_scheme(scheme)
+{
+ m_isV6 = endpoint.address().is_v6();
+ m_host = endpoint.address().to_string();
+ m_port = boost::lexical_cast<std::string>(endpoint.port());
+}
+
+#ifdef BOOST_ASIO_HAS_LOCAL_SOCKETS
+FaceUri::FaceUri(const boost::asio::local::stream_protocol::endpoint& endpoint)
+ : m_isV6(false)
+{
+ m_scheme = "unix";
+ m_path = endpoint.path();
+}
+#endif // BOOST_ASIO_HAS_LOCAL_SOCKETS
+
+FaceUri
+FaceUri::fromFd(int fd)
+{
+ FaceUri uri;
+ uri.m_scheme = "fd";
+ uri.m_host = boost::lexical_cast<std::string>(fd);
+ return uri;
+}
+
+FaceUri::FaceUri(const ethernet::Address& address)
+ : m_isV6(true)
+{
+ m_scheme = "ether";
+ m_host = address.toString();
+}
+
+FaceUri
+FaceUri::fromDev(const std::string& ifname)
+{
+ FaceUri uri;
+ uri.m_scheme = "dev";
+ uri.m_host = ifname;
+ return uri;
+}
+
+bool
+FaceUri::operator==(const FaceUri& rhs) const
+{
+ return (m_scheme == rhs.m_scheme &&
+ m_host == rhs.m_host &&
+ m_isV6 == rhs.m_isV6 &&
+ m_port == rhs.m_port &&
+ m_path == rhs.m_path);
+}
+
+bool
+FaceUri::operator!=(const FaceUri& rhs) const
+{
+ return !(*this == rhs);
+}
+
+std::string
+FaceUri::toString() const
+{
+ std::ostringstream os;
+ os << *this;
+ return os.str();
+}
+
+std::ostream&
+operator<<(std::ostream& os, const FaceUri& uri)
+{
+ os << uri.m_scheme << "://";
+ if (uri.m_isV6) {
+ os << "[" << uri.m_host << "]";
+ }
+ else {
+ os << uri.m_host;
+ }
+ if (!uri.m_port.empty()) {
+ os << ":" << uri.m_port;
+ }
+ os << uri.m_path;
+ return os;
+}
+
+} // namespace util
+} // namespace ndn