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/* -*- 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-face.hpp"
#include "core/global-io.hpp"
namespace nfd {
NFD_LOG_INIT("WebSocketFace");
WebSocketFace::WebSocketFace(const FaceUri& remoteUri, const FaceUri& localUri,
websocketpp::connection_hdl hdl,
websocket::Server& server)
: Face(remoteUri, localUri)
, m_handle(hdl)
, m_server(server)
, m_closed(false)
{
this->setOnDemand(true);
}
void
WebSocketFace::sendInterest(const Interest& interest)
{
if (m_closed)
return;
this->onSendInterest(interest);
const Block& payload = interest.wireEncode();
this->getMutableCounters().getNOutBytes() += payload.size();
try {
m_server.send(m_handle, payload.wire(), payload.size(),
websocketpp::frame::opcode::binary);
}
catch (const websocketpp::lib::error_code& e) {
NFD_LOG_DEBUG("Failed to send Interest because: " << e
<< "(" << e.message() << ")");
}
}
void
WebSocketFace::sendData(const Data& data)
{
if (m_closed)
return;
this->onSendData(data);
const Block& payload = data.wireEncode();
this->getMutableCounters().getNOutBytes() += payload.size();
try {
m_server.send(m_handle, payload.wire(), payload.size(),
websocketpp::frame::opcode::binary);
}
catch (const websocketpp::lib::error_code& e) {
NFD_LOG_DEBUG("Failed to send Data because: " << e
<< "(" << e.message() << ")");
}
}
void
WebSocketFace::close()
{
if (m_closed == false)
{
m_closed = true;
scheduler::cancel(m_pingEventId);
websocketpp::lib::error_code ecode;
m_server.close(m_handle, websocketpp::close::status::normal, "closed by nfd", ecode);
fail("Face closed");
}
}
void
WebSocketFace::handleReceive(const std::string& msg)
{
// Copy message into Face internal buffer
if (msg.size() > MAX_NDN_PACKET_SIZE)
{
NFD_LOG_WARN("[id:" << this->getId()
<< "] Received WebSocket message size ["
<< msg.size() << "] is too big");
return;
}
this->getMutableCounters().getNInBytes() += msg.size();
// Try to parse message data
bool isOk = true;
Block element;
isOk = Block::fromBuffer(reinterpret_cast<const uint8_t*>(msg.c_str()), msg.size(), element);
if (!isOk)
{
NFD_LOG_WARN("[id:" << this->getId()
<< "] Received invalid NDN packet of length ["
<< msg.size() << "]");
return;
}
if (!this->decodeAndDispatchInput(element))
{
NFD_LOG_WARN("[id:" << this->getId()
<< "] Received unrecognized block of type ["
<< element.type() << "]");
// ignore unknown packet and proceed
}
}
} // namespace nfd