/***
This file is part of snapcast
Copyright (C) 2014-2020 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 "stream_server.hpp"
#include "common/aixlog.hpp"
#include "config.hpp"
#include "message/hello.hpp"
#include "message/stream_tags.hpp"
#include "message/time.hpp"
#include <iostream>
using namespace std;
using namespace streamreader;
using json = nlohmann::json;
StreamServer::StreamServer(boost::asio::io_context& io_context, const ServerSettings& serverSettings)
: io_context_(io_context), config_timer_(io_context), settings_(serverSettings)
{
}
StreamServer::~StreamServer() = default;
void StreamServer::cleanup()
{
auto new_end = std::remove_if(sessions_.begin(), sessions_.end(), [](std::weak_ptr<StreamSession> session) { return session.expired(); });
auto count = distance(new_end, sessions_.end());
if (count > 0)
{
SLOG(ERROR) << "Removing " << count << " inactive session(s), active sessions: " << sessions_.size() - count << "\n";
sessions_.erase(new_end, sessions_.end());
}
}
void StreamServer::onMetaChanged(const PcmStream* pcmStream)
{
// clang-format off
// Notification: {"jsonrpc":"2.0","method":"Stream.OnMetadata","params":{"id":"stream 1", "meta": {"album": "some album", "artist": "some artist", "track": "some track"...}}
// clang-format on
// Send meta to all connected clients
const auto meta = pcmStream->getMeta();
LOG(DEBUG) << "metadata = " << meta->msg.dump(3) << "\n";
std::lock_guard<std::recursive_mutex> mlock(sessionsMutex_);
for (auto s : sessions_)
{
if (auto session = s.lock())
{
if (session->pcmStream().get() == pcmStream)
session->sendAsync(meta);
}
}
LOG(INFO) << "onMetaChanged (" << pcmStream->getName() << ")\n";
json notification = jsonrpcpp::Notification("Stream.OnMetadata", jsonrpcpp::Parameter("id", pcmStream->getId(), "meta", meta->msg)).to_json();
controlServer_->send(notification.dump(), nullptr);
// cout << "Notification: " << notification.dump() << "\n";
}
void StreamServer::onStateChanged(const PcmStream* pcmStream, const ReaderState& state)
{
// clang-format off
// Notification: {"jsonrpc":"2.0","method":"Stream.OnUpdate","params":{"id":"stream 1","stream":{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}}}}
// clang-format on
LOG(INFO) << "onStateChanged (" << pcmStream->getName() << "): " << static_cast<int>(state) << "\n";
// LOG(INFO) << pcmStream->toJson().dump(4);
json notification = jsonrpcpp::Notification("Stream.OnUpdate", jsonrpcpp::Parameter("id", pcmStream->getId(), "stream", pcmStream->toJson())).to_json();
controlServer_->send(notification.dump(), nullptr);
// cout << "Notification: " << notification.dump() << "\n";
}
void StreamServer::onChunkRead(const PcmStream* pcmStream, msg::PcmChunk* chunk, double /*duration*/)
{
// LOG(INFO) << "onChunkRead (" << pcmStream->getName() << "): " << duration << "ms\n";
bool isDefaultStream(pcmStream == streamManager_->getDefaultStream().get());
// wrap it into a unique_ptr to ensure that the memory will be freed
unique_ptr<msg::PcmChunk> chunk_ptr(chunk);
shared_const_buffer buffer(*chunk_ptr);
std::vector<std::shared_ptr<StreamSession>> sessions;
{
std::lock_guard<std::recursive_mutex> mlock(sessionsMutex_);
for (auto session : sessions_)
if (auto s = session.lock())
sessions.push_back(s);
}
for (auto session : sessions)
{
if (!settings_.stream.sendAudioToMutedClients)
{
GroupPtr group = Config::instance().getGroupFromClient(session->clientId);
if (group)
{
if (group->muted)
{
continue;
}
else
{
std::lock_guard<std::recursive_mutex> lock(clientMutex_);
ClientInfoPtr client = group->getClient(session->clientId);
if (client && client->config.volume.muted)
continue;
}
}
}
if (!session->pcmStream() && isDefaultStream) //->getName() == "default")
session->sendAsync(buffer);
else if (session->pcmStream().get() == pcmStream)
session->sendAsync(buffer);
}
}
void StreamServer::onResync(const PcmStream* pcmStream, double ms)
{
LOG(INFO) << "onResync (" << pcmStream->getName() << "): " << ms << "ms\n";
}
void StreamServer::onDisconnect(StreamSession* streamSession)
{
std::lock_guard<std::recursive_mutex> mlock(sessionsMutex_);
session_ptr session = getStreamSession(streamSession);
if (session == nullptr)
return;
LOG(INFO) << "onDisconnect: " << session->clientId << "\n";
LOG(DEBUG) << "sessions: " << sessions_.size() << "\n";
sessions_.erase(std::remove_if(sessions_.begin(), sessions_.end(),
[streamSession](std::weak_ptr<StreamSession> session) {
auto s = session.lock();
return s.get() == streamSession;
}),
sessions_.end());
LOG(DEBUG) << "sessions: " << sessions_.size() << "\n";
// notify controllers if not yet done
ClientInfoPtr clientInfo = Config::instance().getClientInfo(session->clientId);
if (!clientInfo || !clientInfo->connected)
return;
clientInfo->connected = false;
chronos::systemtimeofday(&clientInfo->lastSeen);
saveConfig();
if (controlServer_ != nullptr)
{
// Check if there is no session of this client is left
// Can happen in case of ungraceful disconnect/reconnect or
// in case of a duplicate client id
if (getStreamSession(clientInfo->id) == nullptr)
{
// clang-format off
// Notification:
// {"jsonrpc":"2.0","method":"Client.OnDisconnect","params":{"client":{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":81}},"connected":false,"host":{"arch":"x86_64","ip":"192.168.0.54","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488025523,"usec":814067},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},"id":"00:21:6a:7d:74:fc"}}
// clang-format on
json notification =
jsonrpcpp::Notification("Client.OnDisconnect", jsonrpcpp::Parameter("id", clientInfo->id, "client", clientInfo->toJson())).to_json();
controlServer_->send(notification.dump());
// cout << "Notification: " << notification.dump() << "\n";
}
}
cleanup();
}
void StreamServer::ProcessRequest(const jsonrpcpp::request_ptr request, jsonrpcpp::entity_ptr& response, jsonrpcpp::notification_ptr& notification) const
{
try
{
// LOG(INFO) << "StreamServer::ProcessRequest method: " << request->method << ", " << "id: " << request->id() << "\n";
Json result;
if (request->method().find("Client.") == 0)
{
ClientInfoPtr clientInfo = Config::instance().getClientInfo(request->params().get<std::string>("id"));
if (clientInfo == nullptr)
throw jsonrpcpp::InternalErrorException("Client not found", request->id());
if (request->method() == "Client.GetStatus")
{
// clang-format off
// Request: {"id":8,"jsonrpc":"2.0","method":"Client.GetStatus","params":{"id":"00:21:6a:7d:74:fc"}}
// Response: {"id":8,"jsonrpc":"2.0","result":{"client":{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":74}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488026416,"usec":135973},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}}}
// clang-format on
result["client"] = clientInfo->toJson();
}
else if (request->method() == "Client.SetVolume")
{
// clang-format off
// Request: {"id":8,"jsonrpc":"2.0","method":"Client.SetVolume","params":{"id":"00:21:6a:7d:74:fc","volume":{"muted":false,"percent":74}}}
// Response: {"id":8,"jsonrpc":"2.0","result":{"volume":{"muted":false,"percent":74}}}
// Notification: {"jsonrpc":"2.0","method":"Client.OnVolumeChanged","params":{"id":"00:21:6a:7d:74:fc","volume":{"muted":false,"percent":74}}}
// clang-format on
std::lock_guard<std::recursive_mutex> lock(clientMutex_);
clientInfo->config.volume.fromJson(request->params().get("volume"));
result["volume"] = clientInfo->config.volume.toJson();
notification.reset(new jsonrpcpp::Notification("Client.OnVolumeChanged",
jsonrpcpp::Parameter("id", clientInfo->id, "volume", clientInfo->config.volume.toJson())));
}
else if (request->method() == "Client.SetLatency")
{
// clang-format off
// Request: {"id":7,"jsonrpc":"2.0","method":"Client.SetLatency","params":{"id":"00:21:6a:7d:74:fc#2","latency":10}}
// Response: {"id":7,"jsonrpc":"2.0","result":{"latency":10}}
// Notification: {"jsonrpc":"2.0","method":"Client.OnLatencyChanged","params":{"id":"00:21:6a:7d:74:fc#2","latency":10}}
// clang-format on
int latency = request->params().get("latency");
if (latency < -10000)
latency = -10000;
else if (latency > settings_.stream.bufferMs)
latency = settings_.stream.bufferMs;
clientInfo->config.latency = latency; //, -10000, settings_.stream.bufferMs);
result["latency"] = clientInfo->config.latency;
notification.reset(
new jsonrpcpp::Notification("Client.OnLatencyChanged", jsonrpcpp::Parameter("id", clientInfo->id, "latency", clientInfo->config.latency)));
}
else if (request->method() == "Client.SetName")
{
// clang-format off
// Request: {"id":6,"jsonrpc":"2.0","method":"Client.SetName","params":{"id":"00:21:6a:7d:74:fc#2","name":"Laptop"}}
// Response: {"id":6,"jsonrpc":"2.0","result":{"name":"Laptop"}}
// Notification: {"jsonrpc":"2.0","method":"Client.OnNameChanged","params":{"id":"00:21:6a:7d:74:fc#2","name":"Laptop"}}
// clang-format on
clientInfo->config.name = request->params().get<std::string>("name");
result["name"] = clientInfo->config.name;
notification.reset(
new jsonrpcpp::Notification("Client.OnNameChanged", jsonrpcpp::Parameter("id", clientInfo->id, "name", clientInfo->config.name)));
}
else
throw jsonrpcpp::MethodNotFoundException(request->id());
if (request->method().find("Client.Set") == 0)
{
/// Update client
session_ptr session = getStreamSession(clientInfo->id);
if (session != nullptr)
{
auto serverSettings = make_shared<msg::ServerSettings>();
serverSettings->setBufferMs(settings_.stream.bufferMs);
serverSettings->setVolume(clientInfo->config.volume.percent);
GroupPtr group = Config::instance().getGroupFromClient(clientInfo);
serverSettings->setMuted(clientInfo->config.volume.muted || group->muted);
serverSettings->setLatency(clientInfo->config.latency);
session->sendAsync(serverSettings);
}
}
}
else if (request->method().find("Group.") == 0)
{
GroupPtr group = Config::instance().getGroup(request->params().get<std::string>("id"));
if (group == nullptr)
throw jsonrpcpp::InternalErrorException("Group not found", request->id());
if (request->method() == "Group.GetStatus")
{
// clang-format off
// Request: {"id":5,"jsonrpc":"2.0","method":"Group.GetStatus","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1"}}
// Response: {"id":5,"jsonrpc":"2.0","result":{"group":{"clients":[{"config":{"instance":2,"latency":10,"name":"Laptop","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488026485,"usec":644997},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":74}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488026481,"usec":223747},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":true,"name":"","stream_id":"stream 1"}}}
// clang-format on
result["group"] = group->toJson();
}
else if (request->method() == "Group.SetName")
{
// clang-format off
// Request: {"id":6,"jsonrpc":"2.0","method":"Group.SetName","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","name":"Laptop"}}
// Response: {"id":6,"jsonrpc":"2.0","result":{"name":"MediaPlayer"}}
// Notification: {"jsonrpc":"2.0","method":"Group.OnNameChanged","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","MediaPlayer":"Laptop"}}
// clang-format on
group->name = request->params().get<std::string>("name");
result["name"] = group->name;
notification.reset(new jsonrpcpp::Notification("Group.OnNameChanged", jsonrpcpp::Parameter("id", group->id, "name", group->name)));
}
else if (request->method() == "Group.SetMute")
{
// clang-format off
// Request: {"id":5,"jsonrpc":"2.0","method":"Group.SetMute","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","mute":true}}
// Response: {"id":5,"jsonrpc":"2.0","result":{"mute":true}}
// Notification: {"jsonrpc":"2.0","method":"Group.OnMute","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","mute":true}}
// clang-format on
bool muted = request->params().get<bool>("mute");
group->muted = muted;
/// Update clients
for (auto client : group->clients)
{
session_ptr session = getStreamSession(client->id);
if (session != nullptr)
{
auto serverSettings = make_shared<msg::ServerSettings>();
serverSettings->setBufferMs(settings_.stream.bufferMs);
serverSettings->setVolume(client->config.volume.percent);
GroupPtr group = Config::instance().getGroupFromClient(client);
serverSettings->setMuted(client->config.volume.muted || group->muted);
serverSettings->setLatency(client->config.latency);
session->sendAsync(serverSettings);
}
}
result["mute"] = group->muted;
notification.reset(new jsonrpcpp::Notification("Group.OnMute", jsonrpcpp::Parameter("id", group->id, "mute", group->muted)));
}
else if (request->method() == "Group.SetStream")
{
// clang-format off
// Request: {"id":4,"jsonrpc":"2.0","method":"Group.SetStream","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","stream_id":"stream 1"}}
// Response: {"id":4,"jsonrpc":"2.0","result":{"stream_id":"stream 1"}}
// Notification: {"jsonrpc":"2.0","method":"Group.OnStreamChanged","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","stream_id":"stream 1"}}
// clang-format on
string streamId = request->params().get<std::string>("stream_id");
PcmStreamPtr stream = streamManager_->getStream(streamId);
if (stream == nullptr)
throw jsonrpcpp::InternalErrorException("Stream not found", request->id());
group->streamId = streamId;
// Update clients
for (auto client : group->clients)
{
session_ptr session = getStreamSession(client->id);
if (session && (session->pcmStream() != stream))
{
session->sendAsync(stream->getMeta());
session->sendAsync(stream->getHeader());
session->setPcmStream(stream);
}
}
// Notify others
result["stream_id"] = group->streamId;
notification.reset(new jsonrpcpp::Notification("Group.OnStreamChanged", jsonrpcpp::Parameter("id", group->id, "stream_id", group->streamId)));
}
else if (request->method() == "Group.SetClients")
{
// clang-format off
// Request: {"id":3,"jsonrpc":"2.0","method":"Group.SetClients","params":{"clients":["00:21:6a:7d:74:fc#2","00:21:6a:7d:74:fc"],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1"}}
// Response: {"id":3,"jsonrpc":"2.0","result":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025901,"usec":864472},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":100}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488025905,"usec":45238},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
// Notification: {"jsonrpc":"2.0","method":"Server.OnUpdate","params":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025901,"usec":864472},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":100}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488025905,"usec":45238},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
// clang-format on
vector<string> clients = request->params().get("clients");
// Remove clients from group
for (auto iter = group->clients.begin(); iter != group->clients.end();)
{
auto client = *iter;
if (find(clients.begin(), clients.end(), client->id) != clients.end())
{
++iter;
continue;
}
iter = group->clients.erase(iter);
GroupPtr newGroup = Config::instance().addClientInfo(client);
newGroup->streamId = group->streamId;
}
// Add clients to group
PcmStreamPtr stream = streamManager_->getStream(group->streamId);
for (const auto& clientId : clients)
{
ClientInfoPtr client = Config::instance().getClientInfo(clientId);
if (!client)
continue;
GroupPtr oldGroup = Config::instance().getGroupFromClient(client);
if (oldGroup && (oldGroup->id == group->id))
continue;
if (oldGroup)
{
oldGroup->removeClient(client);
Config::instance().remove(oldGroup);
}
group->addClient(client);
// assign new stream
session_ptr session = getStreamSession(client->id);
if (session && stream && (session->pcmStream() != stream))
{
session->sendAsync(stream->getMeta());
session->sendAsync(stream->getHeader());
session->setPcmStream(stream);
}
}
if (group->empty())
Config::instance().remove(group);
json server = Config::instance().getServerStatus(streamManager_->toJson());
result["server"] = server;
// Notify others: since at least two groups are affected, send a complete server update
notification.reset(new jsonrpcpp::Notification("Server.OnUpdate", jsonrpcpp::Parameter("server", server)));
}
else
throw jsonrpcpp::MethodNotFoundException(request->id());
}
else if (request->method().find("Server.") == 0)
{
if (request->method().find("Server.GetRPCVersion") == 0)
{
// Request: {"id":8,"jsonrpc":"2.0","method":"Server.GetRPCVersion"}
// Response: {"id":8,"jsonrpc":"2.0","result":{"major":2,"minor":0,"patch":0}}
// <major>: backwards incompatible change
result["major"] = 2;
// <minor>: feature addition to the API
result["minor"] = 0;
// <patch>: bugfix release
result["patch"] = 0;
}
else if (request->method() == "Server.GetStatus")
{
// clang-format off
// Request: {"id":1,"jsonrpc":"2.0","method":"Server.GetStatus"}
// Response: {"id":1,"jsonrpc":"2.0","result":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025696,"usec":578142},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":81}},"connected":true,"host":{"arch":"x86_64","ip":"192.168.0.54","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488025696,"usec":611255},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
// clang-format on
result["server"] = Config::instance().getServerStatus(streamManager_->toJson());
}
else if (request->method() == "Server.DeleteClient")
{
// clang-format off
// Request: {"id":2,"jsonrpc":"2.0","method":"Server.DeleteClient","params":{"id":"00:21:6a:7d:74:fc"}}
// Response: {"id":2,"jsonrpc":"2.0","result":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025751,"usec":654777},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
// Notification: {"jsonrpc":"2.0","method":"Server.OnUpdate","params":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025751,"usec":654777},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
// clang-format on
ClientInfoPtr clientInfo = Config::instance().getClientInfo(request->params().get<std::string>("id"));
if (clientInfo == nullptr)
throw jsonrpcpp::InternalErrorException("Client not found", request->id());
Config::instance().remove(clientInfo);
json server = Config::instance().getServerStatus(streamManager_->toJson());
result["server"] = server;
/// Notify others
notification.reset(new jsonrpcpp::Notification("Server.OnUpdate", jsonrpcpp::Parameter("server", server)));
}
else
throw jsonrpcpp::MethodNotFoundException(request->id());
}
else if (request->method().find("Stream.") == 0)
{
if (request->method().find("Stream.SetMeta") == 0)
{
/// Request: {"id":4,"jsonrpc":"2.0","method":"Stream.SetMeta","params":{"id":"Spotify",
/// "meta": {"album": "some album", "artist": "some artist", "track": "some track"...}}}
///
/// Response: {"id":4,"jsonrpc":"2.0","result":{"stream_id":"Spotify"}}
/// Call onMetaChanged(const PcmStream* pcmStream) for updates and notifications
LOG(INFO) << "Stream.SetMeta(" << request->params().get<std::string>("id") << ")" << request->params().get("meta") << "\n";
// Find stream
string streamId = request->params().get<std::string>("id");
PcmStreamPtr stream = streamManager_->getStream(streamId);
if (stream == nullptr)
throw jsonrpcpp::InternalErrorException("Stream not found", request->id());
// Set metadata from request
stream->setMeta(request->params().get("meta"));
// Setup response
result["id"] = streamId;
}
else if (request->method() == "Stream.AddStream")
{
// clang-format off
// Request: {"id":4,"jsonrpc":"2.0","method":"Stream.AddStream","params":{"streamUri":"uri"}}
// Response: {"id":4,"jsonrpc":"2.0","result":{"stream_id":"Spotify"}}
// Call onMetaChanged(const PcmStream* pcmStream) for updates and notifications
// clang-format on
LOG(INFO) << "Stream.AddStream(" << request->params().get("streamUri") << ")"
<< "\n";
// Find stream
string streamUri = request->params().get("streamUri");
PcmStreamPtr stream = streamManager_->addStream(streamUri);
if (stream == nullptr)
throw jsonrpcpp::InternalErrorException("Stream not created", request->id());
stream->start(); // We start the stream, otherwise it would be silent
// Setup response
result["id"] = stream->getId();
}
else if (request->method() == "Stream.RemoveStream")
{
// clang-format off
// Request: {"id":4,"jsonrpc":"2.0","method":"Stream.RemoveStream","params":{"id":"Spotify"}}
// Response: {"id":4,"jsonrpc":"2.0","result":{"stream_id":"Spotify"}}
// Call onMetaChanged(const PcmStream* pcmStream) for updates and notifications
// clang-format on
LOG(INFO) << "Stream.RemoveStream(" << request->params().get("id") << ")"
<< "\n";
// Find stream
string streamId = request->params().get("id");
streamManager_->removeStream(streamId);
// Setup response
result["id"] = streamId;
}
else
throw jsonrpcpp::MethodNotFoundException(request->id());
}
else
throw jsonrpcpp::MethodNotFoundException(request->id());
response.reset(new jsonrpcpp::Response(*request, result));
}
catch (const jsonrpcpp::RequestException& e)
{
LOG(ERROR) << "StreamServer::onMessageReceived JsonRequestException: " << e.to_json().dump() << ", message: " << request->to_json().dump() << "\n";
response.reset(new jsonrpcpp::RequestException(e));
}
catch (const exception& e)
{
LOG(ERROR) << "StreamServer::onMessageReceived exception: " << e.what() << ", message: " << request->to_json().dump() << "\n";
response.reset(new jsonrpcpp::InternalErrorException(e.what(), request->id()));
}
}
std::string StreamServer::onMessageReceived(ControlSession* controlSession, const std::string& message)
{
// LOG(DEBUG) << "onMessageReceived: " << message << "\n";
jsonrpcpp::entity_ptr entity(nullptr);
try
{
entity = jsonrpcpp::Parser::do_parse(message);
if (!entity)
return "";
}
catch (const jsonrpcpp::ParseErrorException& e)
{
return e.to_json().dump();
}
catch (const std::exception& e)
{
return jsonrpcpp::ParseErrorException(e.what()).to_json().dump();
}
jsonrpcpp::entity_ptr response(nullptr);
jsonrpcpp::notification_ptr notification(nullptr);
if (entity->is_request())
{
jsonrpcpp::request_ptr request = dynamic_pointer_cast<jsonrpcpp::Request>(entity);
ProcessRequest(request, response, notification);
saveConfig();
////cout << "Request: " << request->to_json().dump() << "\n";
if (notification)
{
////cout << "Notification: " << notification->to_json().dump() << "\n";
controlServer_->send(notification->to_json().dump(), controlSession);
}
if (response)
{
////cout << "Response: " << response->to_json().dump() << "\n";
return response->to_json().dump();
}
return "";
}
else if (entity->is_batch())
{
jsonrpcpp::batch_ptr batch = dynamic_pointer_cast<jsonrpcpp::Batch>(entity);
////cout << "Batch: " << batch->to_json().dump() << "\n";
jsonrpcpp::Batch responseBatch;
jsonrpcpp::Batch notificationBatch;
for (const auto& batch_entity : batch->entities)
{
if (batch_entity->is_request())
{
jsonrpcpp::request_ptr request = dynamic_pointer_cast<jsonrpcpp::Request>(batch_entity);
ProcessRequest(request, response, notification);
if (response != nullptr)
responseBatch.add_ptr(response);
if (notification != nullptr)
notificationBatch.add_ptr(notification);
}
}
saveConfig();
if (!notificationBatch.entities.empty())
controlServer_->send(notificationBatch.to_json().dump(), controlSession);
if (!responseBatch.entities.empty())
return responseBatch.to_json().dump();
return "";
}
return "";
}
void StreamServer::onMessageReceived(StreamSession* streamSession, const msg::BaseMessage& baseMessage, char* buffer)
{
// LOG(DEBUG) << "onMessageReceived: " << baseMessage.type << ", size: " << baseMessage.size << ", id: " << baseMessage.id << ", refers: " <<
// baseMessage.refersTo << ", sent: " << baseMessage.sent.sec << "," << baseMessage.sent.usec << ", recv: " << baseMessage.received.sec << "," <<
// baseMessage.received.usec << "\n";
if (baseMessage.type == message_type::kTime)
{
auto timeMsg = make_shared<msg::Time>();
timeMsg->deserialize(baseMessage, buffer);
timeMsg->refersTo = timeMsg->id;
timeMsg->latency = timeMsg->received - timeMsg->sent;
// LOG(INFO) << "Latency sec: " << timeMsg.latency.sec << ", usec: " << timeMsg.latency.usec << ", refers to: " << timeMsg.refersTo << "\n";
streamSession->sendAsync(timeMsg);
// refresh streamSession state
ClientInfoPtr client = Config::instance().getClientInfo(streamSession->clientId);
if (client != nullptr)
{
chronos::systemtimeofday(&client->lastSeen);
client->connected = true;
}
}
else if (baseMessage.type == message_type::kHello)
{
msg::Hello helloMsg;
helloMsg.deserialize(baseMessage, buffer);
streamSession->clientId = helloMsg.getUniqueId();
LOG(INFO) << "Hello from " << streamSession->clientId << ", host: " << helloMsg.getHostName() << ", v" << helloMsg.getVersion()
<< ", ClientName: " << helloMsg.getClientName() << ", OS: " << helloMsg.getOS() << ", Arch: " << helloMsg.getArch()
<< ", Protocol version: " << helloMsg.getProtocolVersion() << "\n";
LOG(DEBUG) << "request kServerSettings: " << streamSession->clientId << "\n";
// std::lock_guard<std::mutex> mlock(mutex_);
bool newGroup(false);
GroupPtr group = Config::instance().getGroupFromClient(streamSession->clientId);
if (group == nullptr)
{
group = Config::instance().addClientInfo(streamSession->clientId);
newGroup = true;
}
ClientInfoPtr client = group->getClient(streamSession->clientId);
LOG(DEBUG) << "request kServerSettings\n";
auto serverSettings = make_shared<msg::ServerSettings>();
serverSettings->setVolume(client->config.volume.percent);
serverSettings->setMuted(client->config.volume.muted || group->muted);
serverSettings->setLatency(client->config.latency);
serverSettings->setBufferMs(settings_.stream.bufferMs);
serverSettings->refersTo = helloMsg.id;
streamSession->sendAsync(serverSettings);
client->host.mac = helloMsg.getMacAddress();
client->host.ip = streamSession->getIP();
client->host.name = helloMsg.getHostName();
client->host.os = helloMsg.getOS();
client->host.arch = helloMsg.getArch();
client->snapclient.version = helloMsg.getVersion();
client->snapclient.name = helloMsg.getClientName();
client->snapclient.protocolVersion = helloMsg.getProtocolVersion();
client->config.instance = helloMsg.getInstance();
client->connected = true;
chronos::systemtimeofday(&client->lastSeen);
// Assign and update stream
PcmStreamPtr stream = streamManager_->getStream(group->streamId);
if (!stream)
{
stream = streamManager_->getDefaultStream();
group->streamId = stream->getId();
}
LOG(DEBUG) << "Group: " << group->id << ", stream: " << group->streamId << "\n";
saveConfig();
streamSession->sendAsync(stream->getMeta());
streamSession->setPcmStream(stream);
auto headerChunk = stream->getHeader();
streamSession->sendAsync(headerChunk);
if (newGroup)
{
// clang-format off
// Notification: {"jsonrpc":"2.0","method":"Server.OnUpdate","params":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025796,"usec":714671},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"},{"clients":[{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":100}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488025798,"usec":728305},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"c5da8f7a-f377-1e51-8266-c5cc61099b71","muted":false,"name":"","stream_id":"stream 1"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
// clang-format on
json server = Config::instance().getServerStatus(streamManager_->toJson());
json notification = jsonrpcpp::Notification("Server.OnUpdate", jsonrpcpp::Parameter("server", server)).to_json();
controlServer_->send(notification.dump());
}
else
{
// clang-format off
// Notification: {"jsonrpc":"2.0","method":"Client.OnConnect","params":{"client":{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":81}},"connected":true,"host":{"arch":"x86_64","ip":"192.168.0.54","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488025524,"usec":876332},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},"id":"00:21:6a:7d:74:fc"}}
// clang-format on
json notification = jsonrpcpp::Notification("Client.OnConnect", jsonrpcpp::Parameter("id", client->id, "client", client->toJson())).to_json();
controlServer_->send(notification.dump());
// cout << "Notification: " << notification.dump() << "\n";
}
// cout << Config::instance().getServerStatus(streamManager_->toJson()).dump(4) << "\n";
// cout << group->toJson().dump(4) << "\n";
}
}
void StreamServer::saveConfig(const std::chrono::milliseconds& deferred)
{
config_timer_.cancel();
config_timer_.expires_after(deferred);
config_timer_.async_wait([](const boost::system::error_code& ec) {
if (!ec)
{
LOG(DEBUG) << "Saving config\n";
Config::instance().save();
}
});
}
session_ptr StreamServer::getStreamSession(StreamSession* streamSession) const
{
std::lock_guard<std::recursive_mutex> mlock(sessionsMutex_);
for (auto session : sessions_)
{
if (auto s = session.lock())
if (s.get() == streamSession)
return s;
}
return nullptr;
}
session_ptr StreamServer::getStreamSession(const std::string& clientId) const
{
// LOG(INFO) << "getStreamSession: " << mac << "\n";
std::lock_guard<std::recursive_mutex> mlock(sessionsMutex_);
for (auto session : sessions_)
{
if (auto s = session.lock())
if (s->clientId == clientId)
return s;
}
return nullptr;
}
void StreamServer::startAccept()
{
auto accept_handler = [this](error_code ec, tcp::socket socket) {
if (!ec)
handleAccept(std::move(socket));
else
LOG(ERROR) << "Error while accepting socket connection: " << ec.message() << "\n";
};
for (auto& acceptor : acceptor_)
acceptor->async_accept(accept_handler);
}
void StreamServer::handleAccept(tcp::socket socket)
{
try
{
struct timeval tv;
tv.tv_sec = 5;
tv.tv_usec = 0;
setsockopt(socket.native_handle(), SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
setsockopt(socket.native_handle(), SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
/// experimental: turn on tcp::no_delay
socket.set_option(tcp::no_delay(true));
SLOG(NOTICE) << "StreamServer::NewConnection: " << socket.remote_endpoint().address().to_string() << endl;
shared_ptr<StreamSession> session = make_shared<StreamSession>(io_context_, this, std::move(socket));
session->setBufferMs(settings_.stream.bufferMs);
session->start();
std::lock_guard<std::recursive_mutex> mlock(sessionsMutex_);
sessions_.emplace_back(session);
cleanup();
}
catch (const std::exception& e)
{
SLOG(ERROR) << "Exception in StreamServer::handleAccept: " << e.what() << endl;
}
startAccept();
}
void StreamServer::start()
{
try
{
controlServer_ = std::make_unique<ControlServer>(io_context_, settings_.tcp, settings_.http, this);
controlServer_->start();
streamManager_ =
std::make_unique<StreamManager>(this, io_context_, settings_.stream.sampleFormat, settings_.stream.codec, settings_.stream.streamChunkMs);
// throw SnapException("xxx");
for (const auto& streamUri : settings_.stream.pcmStreams)
{
PcmStreamPtr stream = streamManager_->addStream(streamUri);
if (stream)
LOG(INFO) << "Stream: " << stream->getUri().toJson() << "\n";
}
streamManager_->start();
for (const auto& address : settings_.stream.bind_to_address)
{
try
{
LOG(INFO) << "Creating stream acceptor for address: " << address << ", port: " << settings_.stream.port << "\n";
acceptor_.emplace_back(
make_unique<tcp::acceptor>(io_context_, tcp::endpoint(boost::asio::ip::address::from_string(address), settings_.stream.port)));
}
catch (const boost::system::system_error& e)
{
LOG(ERROR) << "error creating TCP acceptor: " << e.what() << ", code: " << e.code() << "\n";
}
}
startAccept();
}
catch (const std::exception& e)
{
SLOG(NOTICE) << "StreamServer::start: " << e.what() << endl;
stop();
throw;
}
}
void StreamServer::stop()
{
for (auto& acceptor : acceptor_)
acceptor->cancel();
acceptor_.clear();
if (streamManager_)
{
streamManager_->stop();
streamManager_ = nullptr;
}
if (controlServer_)
{
controlServer_->stop();
controlServer_ = nullptr;
}
std::lock_guard<std::recursive_mutex> mlock(sessionsMutex_);
cleanup();
for (auto s : sessions_)
{
if (auto session = s.lock())
session->stop();
}
}