9a49f002b7
KDNSSD only works with Avahi (so, only on Linux) while mdns.h is a header-only library [1] that implements mdns from scratch and should work on all platforms. [1] https://github.com/mjansson/mdns
100 lines
2.4 KiB
C++
100 lines
2.4 KiB
C++
/**
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* SPDX-FileCopyrightText: 2023 Albert Vaca Cintora <albertvaka@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
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*/
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#ifndef KDECONNECT_MDNS_WRAPPER_H
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#define KDECONNECT_MDNS_WRAPPER_H
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#include <QHostAddress>
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#include <QMap>
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#include <QSocketNotifier>
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#include <QString>
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#include <QVector>
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/*
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* A Qt wrapper for the mdns.h header-only library
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* from https://github.com/mjansson/mdns
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*/
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namespace MdnsWrapper
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{
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class Discoverer : public QObject
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{
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Q_OBJECT
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public:
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struct MdnsService {
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QString name;
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uint16_t port;
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QHostAddress address;
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QMap<QString, QString> txtRecords;
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};
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// serviceType must be of the form "_<name>._<tcp/udp>.local"
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void startDiscovering(const QString &serviceType);
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void stopDiscovering();
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void sendQuery(const QString &serviceName);
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Q_SIGNALS:
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void serviceFound(const MdnsWrapper::Discoverer::MdnsService &service);
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private:
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int listenForQueryResponses();
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void stopListeningForQueryResponses();
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QVector<QSocketNotifier *> responseSocketNotifiers;
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};
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class Announcer : public QObject
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{
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Q_OBJECT
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public:
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struct AnnouncedInfo {
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QByteArray serviceType; // ie: "<_service-type>._tcp.local."
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QByteArray serviceInstance; // ie: "<service-name>.<_service-type>._tcp.local."
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QByteArray hostname; // ie: "<hostname>.local."
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QVector<QHostAddress> addressesV4;
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QVector<QHostAddress> addressesV6;
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uint16_t port;
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QHash<QByteArray, QByteArray> txtRecords;
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};
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// serviceType must be of the form "_<name>._<tcp/udp>.local"
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Announcer(const QString &serviceName, const QString &serviceType, uint16_t port);
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void putTxtRecord(const QString &key, const QString &value)
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{
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self.txtRecords[key.toLatin1()] = value.toLatin1();
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}
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void startAnnouncing();
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void stopAnnouncing();
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void sendMulticastAnnounce(bool isGoodbye);
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public Q_SLOTS:
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// notify that network interfaces changed since the creation of this Announcer
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void onNetworkChange()
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{
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detectHostAddresses();
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}
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private:
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int listenForQueries();
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void stopListeningForQueries();
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void detectHostAddresses();
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AnnouncedInfo self;
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QSocketNotifier *socketNotifier = nullptr;
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QSocketNotifier *socketNotifierV6 = nullptr;
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};
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} // namespace MdnsWrapper
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#endif
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