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Streaming clients can connect via Websockets
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19 changed files with 789 additions and 356 deletions
136
server/stream_session_tcp.cpp
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136
server/stream_session_tcp.cpp
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/***
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This file is part of snapcast
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Copyright (C) 2014-2020 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 "stream_session_tcp.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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using namespace streamreader;
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static constexpr auto LOG_TAG = "StreamSessionTCP";
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StreamSessionTcp::StreamSessionTcp(boost::asio::io_context& ioc, MessageReceiver* receiver, tcp::socket&& socket)
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: StreamSession(ioc, receiver), socket_(std::move(socket))
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{
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}
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StreamSessionTcp::~StreamSessionTcp()
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{
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LOG(DEBUG, LOG_TAG) << "~StreamSessionTcp\n";
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stop();
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}
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void StreamSessionTcp::start()
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{
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read_next();
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}
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void StreamSessionTcp::stop()
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{
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LOG(DEBUG, LOG_TAG) << "stop\n";
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if (socket_.is_open())
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{
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boost::system::error_code ec;
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socket_.shutdown(boost::asio::ip::tcp::socket::shutdown_both, ec);
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if (ec)
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LOG(ERROR, LOG_TAG) << "Error in socket shutdown: " << ec.message() << "\n";
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socket_.close(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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LOG(DEBUG, LOG_TAG) << "stopped\n";
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}
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}
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std::string StreamSessionTcp::getIP()
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{
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try
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{
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return socket_.remote_endpoint().address().to_string();
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}
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catch (...)
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{
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return "0.0.0.0";
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}
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}
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void StreamSessionTcp::read_next()
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{
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boost::asio::async_read(socket_, boost::asio::buffer(buffer_, base_msg_size_),
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boost::asio::bind_executor(strand_, [ this, self = shared_from_this() ](boost::system::error_code ec, std::size_t length) mutable {
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if (ec)
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{
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LOG(ERROR, LOG_TAG) << "Error reading message header of length " << length << ": " << ec.message() << "\n";
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messageReceiver_->onDisconnect(this);
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return;
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}
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baseMessage_.deserialize(buffer_.data());
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LOG(DEBUG, LOG_TAG) << "getNextMessage: " << baseMessage_.type << ", size: " << baseMessage_.size << ", id: " << baseMessage_.id
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<< ", refers: " << baseMessage_.refersTo << "\n";
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if (baseMessage_.type > message_type::kLast)
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{
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LOG(ERROR, LOG_TAG) << "unknown message type received: " << baseMessage_.type << ", size: " << baseMessage_.size << "\n";
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messageReceiver_->onDisconnect(this);
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return;
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}
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else if (baseMessage_.size > msg::max_size)
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{
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LOG(ERROR, LOG_TAG) << "received message of type " << baseMessage_.type << " to large: " << baseMessage_.size << "\n";
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messageReceiver_->onDisconnect(this);
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return;
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}
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if (baseMessage_.size > buffer_.size())
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buffer_.resize(baseMessage_.size);
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boost::asio::async_read(
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socket_, boost::asio::buffer(buffer_, baseMessage_.size),
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boost::asio::bind_executor(strand_, [this, self](boost::system::error_code ec, std::size_t length) mutable {
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if (ec)
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{
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LOG(ERROR, LOG_TAG) << "Error reading message body of length " << length << ": " << ec.message() << "\n";
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messageReceiver_->onDisconnect(this);
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return;
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}
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tv t;
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baseMessage_.received = t;
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if (messageReceiver_ != nullptr)
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messageReceiver_->onMessageReceived(this, baseMessage_, buffer_.data());
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read_next();
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}));
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}));
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}
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void StreamSessionTcp::sendAsync(const shared_const_buffer& buffer, const WriteHandler& handler)
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{
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boost::asio::async_write(socket_, buffer,
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boost::asio::bind_executor(strand_, [ this, self = shared_from_this(), buffer,
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handler ](boost::system::error_code ec, std::size_t length) { handler(ec, length); }));
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}
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