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powersync-app/libmea-core/discovery/zeroconfdiscovery.cpp

94 lines
3.4 KiB
C++

#include "zeroconfdiscovery.h"
#include <QUuid>
ZeroconfDiscovery::ZeroconfDiscovery(DiscoveryModel *discoveryModel, QObject *parent) :
QObject(parent),
m_discoveryModel(discoveryModel)
{
#ifdef WITH_ZEROCONF
m_zeroconfJsonRPC = new QZeroConf(this);
connect(m_zeroconfJsonRPC, &QZeroConf::serviceAdded, this, &ZeroconfDiscovery::serviceEntryAdded);
connect(m_zeroconfJsonRPC, &QZeroConf::serviceUpdated, this, &ZeroconfDiscovery::serviceEntryAdded);
m_zeroconfJsonRPC->startBrowser("_jsonrpc._tcp");
qDebug() << "created service browser for _jsonrpc._tcp:" << m_zeroconfJsonRPC->browserExists();
m_zeroconfWebSocket = new QZeroConf(this);
connect(m_zeroconfWebSocket, &QZeroConf::serviceAdded, this, &ZeroconfDiscovery::serviceEntryAdded);
connect(m_zeroconfWebSocket, &QZeroConf::serviceUpdated, this, &ZeroconfDiscovery::serviceEntryAdded);
m_zeroconfWebSocket->startBrowser("_ws._tcp");
qDebug() << "created service browser for _ws._tcp:" << m_zeroconfWebSocket->browserExists();
#else
qDebug() << "Zeroconf support not compiled in. Zeroconf will not be available.";
#endif
}
bool ZeroconfDiscovery::available() const
{
#ifdef WITH_ZEROCONF
return m_zeroconfJsonRPC->browserExists() || m_zeroconfWebSocket->browserExists();
#else
return false;
#endif
}
bool ZeroconfDiscovery::discovering() const
{
return available();
}
#ifdef WITH_ZEROCONF
void ZeroconfDiscovery::serviceEntryAdded(const QZeroConfService &entry)
{
if (!entry.name().startsWith("nymea") || entry.ip().isNull()) {
return;
}
qDebug() << "zeroconf service discovered" << entry << entry.txt() << entry.type();
QString uuid;
bool sslEnabled = false;
QString serverName;
foreach (const QByteArray &key, entry.txt().keys()) {
QPair<QString, QString> txtRecord = qMakePair<QString, QString>(key, entry.txt().value(key));
if (!sslEnabled && txtRecord.first == "sslEnabled") {
sslEnabled = (txtRecord.second == "true");
}
if (txtRecord.first == "uuid") {
uuid = txtRecord.second;
}
if (txtRecord.first == "name") {
serverName = txtRecord.second;
}
}
qDebug() << "avahi service entry added" << serverName << uuid << sslEnabled;
DiscoveryDevice dev = m_discoveryModel->find(entry.ip());
if (dev.uuid() == uuid && dev.nymeaRpcUrl().startsWith("nymeas") && !sslEnabled) {
// We already have this host and with a more secure configuration... skip this one...
return;
}
qDebug() << "Adding new found entry:" << entry.name() << entry.ip();
dev.setUuid(uuid);
dev.setHostAddress(entry.ip());
dev.setPort(entry.port());
dev.setFriendlyName(serverName + " on " + entry.ip().toString());
QHostAddress address = entry.ip();
QString addressString;
if (address.protocol() == QAbstractSocket::IPv6Protocol) {
addressString = "[" + address.toString() + "]";
} else {
addressString = address.toString();
}
if (entry.type() == "_ws._tcp") {
dev.setWebSocketUrl(QString("%1://%2:%3").arg(sslEnabled ? "wss" : "ws").arg(addressString).arg(entry.port()));
} else {
dev.setNymeaRpcUrl(QString("%1://%2:%3").arg(sslEnabled ? "nymeas" : "nymea").arg(addressString).arg(entry.port()));
}
m_discoveryModel->addDevice(dev);
// DiscoveryDevice *dev = new DiscoveryDevice();
// dev->setFriendlyName(entry.hostName());
}
#endif