snapcast/server/control_session_ws.cpp

127 lines
3.5 KiB
C++

/***
This file is part of snapcast
Copyright (C) 2014-2019 Johannes Pohl
This program 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
***/
#include "control_session_ws.hpp"
#include "aixlog.hpp"
#include "message/pcmChunk.h"
#include <iostream>
using namespace std;
ControlSessionWs::ControlSessionWs(ControlMessageReceiver* receiver, tcp::socket&& socket) : ControlSession(receiver), ws_(std::move(socket))
{
}
ControlSessionWs::~ControlSessionWs()
{
LOG(DEBUG) << "ControlSessionWs::~ControlSessionWs()\n";
stop();
}
void ControlSessionWs::start()
{
// Set suggested timeout settings for the websocket
ws_.set_option(websocket::stream_base::timeout::suggested(beast::role_type::server));
// Set a decorator to change the Server of the handshake
ws_.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res) { res.set(http::field::server, std::string(BOOST_BEAST_VERSION_STRING) + " websocket-server-async"); }));
// Accept the websocket handshake
auto self(shared_from_this());
ws_.async_accept([this, self](beast::error_code ec) { on_accept(ec); });
}
void ControlSessionWs::on_accept(beast::error_code ec)
{
if (ec)
{
LOG(ERROR) << "ControlSessionWs::on_accept, error: " << ec.message() << "\n";
return;
}
// Read a message
do_read();
}
void ControlSessionWs::do_read()
{
// Read a message into our buffer
auto self(shared_from_this());
ws_.async_read(buffer_, [this, self](beast::error_code ec, std::size_t bytes_transferred) { on_read(ec, bytes_transferred); });
}
void ControlSessionWs::on_read(beast::error_code ec, std::size_t bytes_transferred)
{
boost::ignore_unused(bytes_transferred);
// This indicates that the session was closed
if (ec == websocket::error::closed)
return;
if (ec)
{
LOG(ERROR) << "ControlSessionWs::on_read error: " << ec.message() << "\n";
return;
}
std::string line{boost::beast::buffers_to_string(buffer_.data())};
if (!line.empty())
{
LOG(INFO) << "received: " << line << "\n";
if ((message_receiver_ != nullptr) && !line.empty())
message_receiver_->onMessageReceived(this, line);
}
buffer_.consume(bytes_transferred);
do_read();
}
void ControlSessionWs::stop()
{
}
void ControlSessionWs::sendAsync(const std::string& message)
{
auto self(shared_from_this());
ws_.async_write(boost::asio::buffer(message), [this, self](std::error_code ec, std::size_t length) {
if (ec)
{
LOG(ERROR) << "Error while writing to control socket: " << ec.message() << "\n";
}
else
{
LOG(DEBUG) << "Wrote " << length << " bytes to control socket\n";
}
});
}
bool ControlSessionWs::send(const std::string& message)
{
boost::system::error_code ec;
ws_.write(boost::asio::buffer(message), ec);
return !ec;
}