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// SPDX-FileCopyrightText: 2010 Manjeet Dahiya <manjeetdahiya@gmail.com>
// SPDX-FileCopyrightText: 2021 Linus Jahn <lnj@kaidan.im>
//
// SPDX-License-Identifier: LGPL-2.1-or-later
#ifndef QXMPPDISCOVERYMANAGER_H
#define QXMPPDISCOVERYMANAGER_H
#include "QXmppClientExtension.h"
#include <variant>
template<typename T>
class QXmppTask;
class QXmppDataForm;
class QXmppDiscoveryIq;
class QXmppDiscoveryManagerPrivate;
struct QXmppError;
/// \brief The QXmppDiscoveryManager class makes it possible to discover information
/// about other entities as defined by \xep{0030}: Service Discovery.
///
/// \ingroup Managers
class QXMPP_EXPORT QXmppDiscoveryManager : public QXmppClientExtension
{
Q_OBJECT
public:
QXmppDiscoveryManager();
~QXmppDiscoveryManager() override;
QXmppDiscoveryIq capabilities();
QString requestInfo(const QString &jid, const QString &node = QString());
QString requestItems(const QString &jid, const QString &node = QString());
using InfoResult = std::variant<QXmppDiscoveryIq, QXmppError>;
using ItemsResult = std::variant<QList<QXmppDiscoveryIq::Item>, QXmppError>;
QXmppTask<InfoResult> requestDiscoInfo(const QString &jid, const QString &node = {});
QXmppTask<ItemsResult> requestDiscoItems(const QString &jid, const QString &node = {});
QString clientCapabilitiesNode() const;
void setClientCapabilitiesNode(const QString &);
// http://xmpp.org/registrar/disco-categories.html#client
QString clientCategory() const;
void setClientCategory(const QString &);
void setClientName(const QString &);
QString clientName() const;
QString clientType() const;
void setClientType(const QString &);
QXmppDataForm clientInfoForm() const;
void setClientInfoForm(const QXmppDataForm &form);
/// \cond
QStringList discoveryFeatures() const override;
bool handleStanza(const QDomElement &element) override;
std::variant<QXmppDiscoveryIq, QXmppStanza::Error> handleIq(QXmppDiscoveryIq &&iq);
/// \endcond
Q_SIGNALS:
/// This signal is emitted when an information response is received.
void infoReceived(const QXmppDiscoveryIq &);
/// This signal is emitted when an items response is received.
void itemsReceived(const QXmppDiscoveryIq &);
private:
const std::unique_ptr<QXmppDiscoveryManagerPrivate> d;
};
#endif // QXMPPDISCOVERYMANAGER_H
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