Wentao Shang
128 lines
3.8 KiB
C++
128 lines
3.8 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/**
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* Copyright (c) 2014 Regents of the University of California,
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* Arizona Board of Regents,
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* Colorado State University,
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* University Pierre & Marie Curie, Sorbonne University,
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* Washington University in St. Louis,
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* Beijing Institute of Technology,
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* The University of Memphis
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*
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* This file is part of NFD (Named Data Networking Forwarding Daemon).
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* See AUTHORS.md for complete list of NFD authors and contributors.
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*
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* NFD is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Foundation,
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* either version 3 of the License, or (at your option) any later version.
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*
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* NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
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**/
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#include "websocket-channel.hpp"
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#include "core/face-uri.hpp"
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namespace nfd {
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NFD_LOG_INIT("WebSocketChannel");
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using namespace boost::asio;
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WebSocketChannel::WebSocketChannel(const websocket::Endpoint& localEndpoint)
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: m_localEndpoint(localEndpoint)
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, m_isListening(false)
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{
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// Setup WebSocket server
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m_server.clear_access_channels(websocketpp::log::alevel::all);
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m_server.clear_error_channels(websocketpp::log::alevel::all);
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m_server.set_message_handler(bind(&WebSocketChannel::handleMessage, this, _1, _2));
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m_server.set_open_handler(bind(&WebSocketChannel::handleOpen, this, _1));
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m_server.set_close_handler(bind(&WebSocketChannel::handleClose, this, _1));
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m_server.init_asio(&getGlobalIoService());
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this->setUri(FaceUri(localEndpoint, "ws"));
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}
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WebSocketChannel::~WebSocketChannel()
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{
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}
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void
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WebSocketChannel::handleMessage(websocketpp::connection_hdl hdl,
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websocket::Server::message_ptr msg)
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{
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ChannelFaceMap::iterator it = m_channelFaces.find(hdl);
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if (it != m_channelFaces.end())
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{
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it->second->handleReceive(msg->get_payload());
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}
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}
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void
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WebSocketChannel::handleOpen(websocketpp::connection_hdl hdl)
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{
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std::string remote;
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try
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{
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remote = "wsclient://" + m_server.get_con_from_hdl(hdl)->get_remote_endpoint();
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}
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catch (websocketpp::lib::error_code ec)
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{
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NFD_LOG_DEBUG("handleOpen: cannot get remote uri");
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websocketpp::lib::error_code ecode;
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m_server.close(hdl, websocketpp::close::status::normal, "closed by channel", ecode);
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}
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shared_ptr<WebSocketFace> face = make_shared<WebSocketFace>(FaceUri(remote), this->getUri(),
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hdl, boost::ref(m_server));
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m_onFaceCreatedCallback(face);
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m_channelFaces[hdl] = face;
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}
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void
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WebSocketChannel::handleClose(websocketpp::connection_hdl hdl)
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{
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ChannelFaceMap::iterator it = m_channelFaces.find(hdl);
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if (it != m_channelFaces.end())
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{
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NFD_LOG_DEBUG("handleClose: remove client");
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m_channelFaces.erase(it);
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}
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}
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void
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WebSocketChannel::listen(const FaceCreatedCallback& onFaceCreated)
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{
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if (m_isListening)
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{
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throw Error("Listen already called on this channel");
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}
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m_isListening = true;
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m_onFaceCreatedCallback = onFaceCreated;
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try
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{
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m_server.listen(m_localEndpoint);
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}
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catch (websocketpp::lib::error_code ec)
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{
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throw Error("Failed to listen on local endpoint");
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}
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m_server.start_accept();
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}
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size_t
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WebSocketChannel::size() const
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{
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return m_channelFaces.size();
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}
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} // namespace nfd
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