etm-powersync-plugins/everest/jsonrpc/everestjsonrpcdiscovery.cpp
2025-11-17 16:36:48 +01:00

137 lines
4.9 KiB
C++

// SPDX-License-Identifier: GPL-3.0-or-later
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright (C) 2013 - 2024, nymea GmbH
* Copyright (C) 2024 - 2025, chargebyte austria GmbH
*
* This file is part of nymea-plugins.
*
* nymea-plugins 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.
*
* nymea-plugins 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 nymea-plugins. If not, see <https://www.gnu.org/licenses/>.
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "everestjsonrpcdiscovery.h"
#include "extern-plugininfo.h"
EverestJsonRpcDiscovery::EverestJsonRpcDiscovery(NetworkDeviceDiscovery *networkDeviceDiscovery, quint16 port, QObject *parent)
: QObject{parent},
m_networkDeviceDiscovery{networkDeviceDiscovery},
m_port{port}
{
}
void EverestJsonRpcDiscovery::start()
{
qCInfo(dcEverest()) << "Discovery: Start discovering Everest JsonRpc instances in the network...";
m_startDateTime = QDateTime::currentDateTime();
NetworkDeviceDiscoveryReply *discoveryReply = m_networkDeviceDiscovery->discover();
connect(discoveryReply, &NetworkDeviceDiscoveryReply::hostAddressDiscovered, this, &EverestJsonRpcDiscovery::checkHostAddress);
connect(discoveryReply, &NetworkDeviceDiscoveryReply::finished, discoveryReply, &NetworkDeviceDiscoveryReply::deleteLater);
connect(discoveryReply, &NetworkDeviceDiscoveryReply::finished, this, [discoveryReply, this](){
qCDebug(dcEverest()) << "Discovery: Network device discovery finished. Found" << discoveryReply->networkDeviceInfos().count() << "network devices";
m_networkDeviceInfos = discoveryReply->networkDeviceInfos();
// Give the last connections added right before the network discovery finished a chance to check the device...
QTimer::singleShot(3000, this, [this](){
qCDebug(dcEverest()) << "Discovery: Grace period timer triggered.";
finishDiscovery();
});
});
NetworkDeviceInfo localHostInfo;
checkHostAddress(QHostAddress::LocalHost);
}
void EverestJsonRpcDiscovery::startLocalhost()
{
qCInfo(dcEverest()) << "Discovery: Start discovering EVerest on localhost ...";
m_startDateTime = QDateTime::currentDateTime();
m_localhostDiscovery = true;
// For development, check local host
NetworkDeviceInfo localHostInfo;
checkHostAddress(QHostAddress::LocalHost);
}
QList<EverestJsonRpcDiscovery::Result> EverestJsonRpcDiscovery::results() const
{
return m_results;
}
void EverestJsonRpcDiscovery::checkHostAddress(const QHostAddress &address)
{
QUrl url;
url.setScheme("ws");
url.setHost(address.toString());
url.setPort(m_port);
EverestJsonRpcClient *client = new EverestJsonRpcClient(this);
connect(client, &EverestJsonRpcClient::availableChanged, this, [this, client, address](bool available){
if (available) {
qCDebug(dcEverest()) << "Discovery: Found JsonRpc interface on" << client->serverUrl().toString();
Result result;
result.address = address;
m_results.append(result);
cleanupClient(client);
}
});
connect(client, &EverestJsonRpcClient::connectionErrorOccurred, this, [this, client](){
qCDebug(dcEverest()) << "Discovery: The connection to" << client->serverUrl().toString() << "failed. Skipping host";
cleanupClient(client);
});
client->connectToServer(url);
}
void EverestJsonRpcDiscovery::cleanupClient(EverestJsonRpcClient *client)
{
if (!m_clients.contains(client))
return;
m_clients.removeAll(client);
client->disconnectFromServer();
client->deleteLater();
if (m_localhostDiscovery)
finishDiscovery();
}
void EverestJsonRpcDiscovery::finishDiscovery()
{
qint64 durationMilliSeconds = QDateTime::currentMSecsSinceEpoch() - m_startDateTime.toMSecsSinceEpoch();
// Cleanup any leftovers
foreach (EverestJsonRpcClient *client, m_clients)
cleanupClient(client);
// Update results with final network device infos
for (int i = 0; i < m_results.count(); i++)
m_results[i].networkDeviceInfo = m_networkDeviceInfos.get(m_results.at(i).address);
qCInfo(dcEverest()) << "Discovery: Finished the discovery process. Found"
<< m_results.count() << "Everest JsonRpc instances in"
<< QTime::fromMSecsSinceStartOfDay(durationMilliSeconds).toString("mm:ss.zzz");
emit finished();
}