mirror of
https://github.com/badaix/snapcast.git
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132 lines
3.8 KiB
C++
132 lines
3.8 KiB
C++
/***
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This file is part of snapcast
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Copyright (C) 2014-2021 Johannes Pohl
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "control_session_ws.hpp"
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#include "common/aixlog.hpp"
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#include "message/pcm_chunk.hpp"
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#include <iostream>
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using namespace std;
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static constexpr auto LOG_TAG = "ControlSessionWS";
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ControlSessionWebsocket::ControlSessionWebsocket(ControlMessageReceiver* receiver, websocket::stream<beast::tcp_stream>&& socket)
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: ControlSession(receiver), ws_(std::move(socket)), strand_(net::make_strand(ws_.get_executor()))
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{
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LOG(DEBUG, LOG_TAG) << "ControlSessionWebsocket\n";
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}
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ControlSessionWebsocket::~ControlSessionWebsocket()
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{
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LOG(DEBUG, LOG_TAG) << "ControlSessionWebsocket::~ControlSessionWebsocket()\n";
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stop();
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}
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void ControlSessionWebsocket::start()
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{
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// Read a message
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do_read_ws();
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}
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void ControlSessionWebsocket::stop()
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{
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// if (ws_.is_open())
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// {
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// boost::beast::error_code ec;
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// ws_.close(beast::websocket::close_code::normal, ec);
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// if (ec)
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// LOG(ERROR, LOG_TAG) << "Error in socket close: " << ec.message() << "\n";
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// }
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}
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void ControlSessionWebsocket::sendAsync(const std::string& message)
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{
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net::post(strand_, [this, self = shared_from_this(), msg = message]() {
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messages_.push_back(std::move(msg));
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if (messages_.size() > 1)
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{
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LOG(DEBUG, LOG_TAG) << "HTTP session outstanding async_writes: " << messages_.size() << "\n";
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return;
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}
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send_next();
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});
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}
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void ControlSessionWebsocket::send_next()
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{
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const std::string& message = messages_.front();
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ws_.async_write(boost::asio::buffer(message), [this, self = shared_from_this()](std::error_code ec, std::size_t length) {
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messages_.pop_front();
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if (ec)
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{
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LOG(ERROR, LOG_TAG) << "Error while writing to web socket: " << ec.message() << "\n";
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}
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else
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{
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LOG(TRACE, LOG_TAG) << "Wrote " << length << " bytes to web socket\n";
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}
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if (!messages_.empty())
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send_next();
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});
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}
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void ControlSessionWebsocket::do_read_ws()
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{
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// Read a message into our buffer
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ws_.async_read(buffer_, [this, self = shared_from_this()](beast::error_code ec, std::size_t bytes_transferred) { on_read_ws(ec, bytes_transferred); });
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}
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void ControlSessionWebsocket::on_read_ws(beast::error_code ec, std::size_t bytes_transferred)
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{
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boost::ignore_unused(bytes_transferred);
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// This indicates that the session was closed
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if (ec == websocket::error::closed)
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return;
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if (ec)
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{
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LOG(ERROR, LOG_TAG) << "ControlSessionWebsocket::on_read_ws error: " << ec.message() << "\n";
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return;
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}
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std::string line{boost::beast::buffers_to_string(buffer_.data())};
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if (!line.empty())
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{
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// LOG(DEBUG, LOG_TAG) << "received: " << line << "\n";
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if ((message_receiver_ != nullptr) && !line.empty())
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{
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message_receiver_->onMessageReceived(shared_from_this(), line, [this](const std::string& response) {
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if (!response.empty())
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{
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sendAsync(response);
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}
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});
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}
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}
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buffer_.consume(bytes_transferred);
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do_read_ws();
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}
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