face: Implement WebSocket channel, face, and factory.
Change-Id: Ic4dbb1abdbbdbec028746ba14b11be8ab9cc1edb
Refs: #1468
diff --git a/daemon/face/websocket-channel.cpp b/daemon/face/websocket-channel.cpp
new file mode 100644
index 0000000..db7fdc0
--- /dev/null
+++ b/daemon/face/websocket-channel.cpp
@@ -0,0 +1,127 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014 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 NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#include "websocket-channel.hpp"
+#include "core/face-uri.hpp"
+
+namespace nfd {
+
+NFD_LOG_INIT("WebSocketChannel");
+
+using namespace boost::asio;
+
+WebSocketChannel::WebSocketChannel(const websocket::Endpoint& localEndpoint)
+ : m_localEndpoint(localEndpoint)
+ , m_isListening(false)
+{
+ // Setup WebSocket server
+ m_server.clear_access_channels(websocketpp::log::alevel::all);
+ m_server.clear_error_channels(websocketpp::log::alevel::all);
+
+ m_server.set_message_handler(bind(&WebSocketChannel::handleMessage, this, _1, _2));
+ m_server.set_open_handler(bind(&WebSocketChannel::handleOpen, this, _1));
+ m_server.set_close_handler(bind(&WebSocketChannel::handleClose, this, _1));
+ m_server.init_asio(&getGlobalIoService());
+
+ this->setUri(FaceUri(localEndpoint, "ws"));
+}
+
+WebSocketChannel::~WebSocketChannel()
+{
+}
+
+void
+WebSocketChannel::handleMessage(websocketpp::connection_hdl hdl,
+ websocket::Server::message_ptr msg)
+{
+ ChannelFaceMap::iterator it = m_channelFaces.find(hdl);
+ if (it != m_channelFaces.end())
+ {
+ it->second->handleReceive(msg->get_payload());
+ }
+}
+
+void
+WebSocketChannel::handleOpen(websocketpp::connection_hdl hdl)
+{
+ std::string remote;
+ try
+ {
+ remote = "wsclient://" + m_server.get_con_from_hdl(hdl)->get_remote_endpoint();
+ }
+ catch (websocketpp::lib::error_code ec)
+ {
+ NFD_LOG_DEBUG("handleOpen: cannot get remote uri");
+ websocketpp::lib::error_code ecode;
+ m_server.close(hdl, websocketpp::close::status::normal, "closed by channel", ecode);
+ }
+ shared_ptr<WebSocketFace> face = make_shared<WebSocketFace>(FaceUri(remote), this->getUri(),
+ hdl, boost::ref(m_server));
+ m_onFaceCreatedCallback(face);
+ m_channelFaces[hdl] = face;
+}
+
+void
+WebSocketChannel::handleClose(websocketpp::connection_hdl hdl)
+{
+ ChannelFaceMap::iterator it = m_channelFaces.find(hdl);
+ if (it != m_channelFaces.end())
+ {
+ NFD_LOG_DEBUG("handleClose: remove client");
+ m_channelFaces.erase(it);
+ }
+}
+
+
+void
+WebSocketChannel::listen(const FaceCreatedCallback& onFaceCreated)
+{
+ if (m_isListening)
+ {
+ throw Error("Listen already called on this channel");
+ }
+ m_isListening = true;
+
+ m_onFaceCreatedCallback = onFaceCreated;
+
+ try
+ {
+ m_server.listen(m_localEndpoint);
+ }
+ catch (websocketpp::lib::error_code ec)
+ {
+ throw Error("Failed to listen on local endpoint");
+ }
+
+ m_server.start_accept();
+}
+
+size_t
+WebSocketChannel::size() const
+{
+ return m_channelFaces.size();
+}
+
+} // namespace nfd