117 lines
3.3 KiB
C++
117 lines
3.3 KiB
C++
#ifndef MDNS_BROWSER_H
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#define MDNS_BROWSER_H
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#include <chrono>
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#include <type_traits>
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#include <qmdnsengine/server.h>
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#include <qmdnsengine/service.h>
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#include <qmdnsengine/browser.h>
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#include <qmdnsengine/cache.h>
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#include <qmdnsengine/resolver.h>
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#include <qmdnsengine/dns.h>
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#include <qmdnsengine/record.h>
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// Qt includes
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#include <QObject>
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#include <QByteArray>
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// Utility includes
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#include <utils/Logger.h>
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#include <utils/WeakConnect.h>
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namespace {
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constexpr std::chrono::milliseconds DEFAULT_DISCOVER_TIMEOUT{ 500 };
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constexpr std::chrono::milliseconds DEFAULT_ADDRESS_RESOLVE_TIMEOUT{ 1000 };
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} //End of constants
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class MdnsBrowser : public QObject
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{
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Q_OBJECT
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// Run MdnsBrowser as singleton
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private:
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///
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/// @brief Browse for hyperion services in bonjour, constructed from HyperionDaemon
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/// Searching for hyperion http service by default
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///
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// Run MdnsBrowser as singleton
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MdnsBrowser(QObject* parent = nullptr);
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~MdnsBrowser() override;
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public:
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static MdnsBrowser& getInstance()
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{
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static MdnsBrowser* instance = new MdnsBrowser();
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return *instance;
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}
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MdnsBrowser(const MdnsBrowser&) = delete;
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MdnsBrowser(MdnsBrowser&&) = delete;
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MdnsBrowser& operator=(const MdnsBrowser&) = delete;
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MdnsBrowser& operator=(MdnsBrowser&&) = delete;
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QMdnsEngine::Service getFirstService(const QByteArray& serviceType, const QString& filter = ".*", const std::chrono::milliseconds waitTime = DEFAULT_DISCOVER_TIMEOUT) const;
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QJsonArray getServicesDiscoveredJson(const QByteArray& serviceType, const QString& filter = ".*", const std::chrono::milliseconds waitTime = std::chrono::milliseconds{ 0 }) const;
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void printCache(const QByteArray& name = QByteArray(), quint16 type = QMdnsEngine::ANY) const;
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public slots:
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///
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/// @brief Browse for a service of type
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///
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void browseForServiceType(const QByteArray& serviceType);
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QHostAddress getHostFirstAddress(const QByteArray& hostname);
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void onHostNameResolved(const QHostAddress& address);
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QMdnsEngine::Record getServiceInstanceRecord(const QByteArray& serviceInstance, const std::chrono::milliseconds waitTime = DEFAULT_DISCOVER_TIMEOUT) const;
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bool resolveAddress(Logger* log, const QString& hostname, QHostAddress& hostAddress, std::chrono::milliseconds timeout = DEFAULT_ADDRESS_RESOLVE_TIMEOUT);
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Q_SIGNALS:
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/**
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* @brief Indicate that the specified service was updated
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*
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* This signal is emitted when the SRV record for a service (identified by
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* its name and type) or a TXT record has changed.
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*/
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void serviceFound(const QMdnsEngine::Service& service);
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/**
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* @brief Indicate that the specified service was removed
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*
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* This signal is emitted when an essential record (PTR or SRV) is
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* expiring from the cache. This will also occur when an updated PTR or
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* SRV record is received with a TTL of 0.
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*/
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void serviceRemoved(const QMdnsEngine::Service& service);
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void addressResolved(const QHostAddress address);
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private slots:
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void onServiceAdded(const QMdnsEngine::Service& service);
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void onServiceUpdated(const QMdnsEngine::Service& service);
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void onServiceRemoved(const QMdnsEngine::Service& service);
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private:
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/// The logger instance for mDNS-Service
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Logger* _log;
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QMdnsEngine::Server _server;
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QMdnsEngine::Cache _cache;
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QMap<QByteArray, QMdnsEngine::Browser*> _browsedServiceTypes;
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};
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#endif // MDNSBROWSER_H
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