Davide Pesavento
132 lines
4.0 KiB
C++
132 lines
4.0 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/**
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* Copyright (c) 2014-2015, 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-face.hpp"
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namespace nfd {
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NFD_LOG_INIT("WebSocketFace");
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WebSocketFace::WebSocketFace(const FaceUri& remoteUri, const FaceUri& localUri,
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websocketpp::connection_hdl hdl,
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websocket::Server& server)
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: Face(remoteUri, localUri)
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, m_handle(hdl)
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, m_server(server)
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, m_closed(false)
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{
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this->setOnDemand(true);
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}
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void
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WebSocketFace::sendInterest(const Interest& interest)
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{
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if (m_closed)
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return;
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this->emitSignal(onSendInterest, interest);
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const Block& payload = interest.wireEncode();
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this->getMutableCounters().getNOutBytes() += payload.size();
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try {
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m_server.send(m_handle, payload.wire(), payload.size(),
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websocketpp::frame::opcode::binary);
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}
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catch (const websocketpp::lib::error_code& e) {
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NFD_LOG_WARN("Failed to send Interest: " << e << " (" << e.message() << ")");
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}
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}
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void
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WebSocketFace::sendData(const Data& data)
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{
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if (m_closed)
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return;
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this->emitSignal(onSendData, data);
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const Block& payload = data.wireEncode();
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this->getMutableCounters().getNOutBytes() += payload.size();
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try {
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m_server.send(m_handle, payload.wire(), payload.size(),
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websocketpp::frame::opcode::binary);
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}
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catch (const websocketpp::lib::error_code& e) {
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NFD_LOG_WARN("Failed to send Data: " << e << " (" << e.message() << ")");
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}
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}
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void
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WebSocketFace::close()
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{
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if (m_closed == false)
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{
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m_closed = true;
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scheduler::cancel(m_pingEventId);
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websocketpp::lib::error_code ecode;
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m_server.close(m_handle, websocketpp::close::status::normal, "closed by nfd", ecode);
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fail("Face closed");
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}
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}
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void
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WebSocketFace::handleReceive(const std::string& msg)
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{
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// Copy message into Face internal buffer
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if (msg.size() > ndn::MAX_NDN_PACKET_SIZE)
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{
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NFD_LOG_WARN("[id:" << this->getId()
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<< "] Received WebSocket message is too big (" << msg.size() << " bytes)");
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return;
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}
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NFD_LOG_TRACE("[id:" << this->getId()
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<< "] Received: " << msg.size() << " bytes");
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this->getMutableCounters().getNInBytes() += msg.size();
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// Try to parse message data
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Block element;
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bool isOk = Block::fromBuffer(reinterpret_cast<const uint8_t*>(msg.c_str()),
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msg.size(), element);
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if (!isOk)
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{
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NFD_LOG_WARN("[id:" << this->getId()
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<< "] Received block is invalid or too large to process");
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return;
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}
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if (!this->decodeAndDispatchInput(element))
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{
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NFD_LOG_WARN("[id:" << this->getId()
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<< "] Received unrecognized TLV block of type " << element.type());
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// ignore unknown packet and proceed
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}
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}
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} // namespace nfd
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