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/*
* Copyright (C) 2008-2020 The QXmpp developers
*
* Authors:
* Manjeet Dahiya
* Jeremy Lainé
*
* Source:
* https://github.com/qxmpp-project/qxmpp
*
* This file is a part of QXmpp library.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
*/
#ifndef QXMPPSTREAM_H
#define QXMPPSTREAM_H
#include "QXmppLogger.h"
#include <QAbstractSocket>
#include <QObject>
class QDomElement;
class QSslSocket;
class QXmppStanza;
class QXmppStreamPrivate;
/// \brief The QXmppStream class is the base class for all XMPP streams.
///
class QXMPP_EXPORT QXmppStream : public QXmppLoggable
{
Q_OBJECT
public:
QXmppStream(QObject *parent);
~QXmppStream() override;
virtual bool isConnected() const;
bool sendPacket(const QXmppStanza &);
Q_SIGNALS:
/// This signal is emitted when the stream is connected.
void connected();
/// This signal is emitted when the stream is disconnected.
void disconnected();
protected:
// Access to underlying socket
QSslSocket *socket() const;
void setSocket(QSslSocket *socket);
// Overridable methods
virtual void handleStart();
/// Handles an incoming XMPP stanza.
///
/// \param element
virtual void handleStanza(const QDomElement &element) = 0;
/// Handles an incoming XMPP stream start.
///
/// \param element
virtual void handleStream(const QDomElement &element) = 0;
/// Enables Stream Management acks / reqs (\xep{0198}).
///
/// \param resetSeqno Indicates if the sequence numbers should be reset.
/// This must be done iff the stream is not resumed.
void enableStreamManagement(bool resetSequenceNumber);
/// Returns the sequence number of the last incoming stanza (\xep{0198}).
unsigned lastIncomingSequenceNumber() const;
/// Sets the last acknowledged sequence number for outgoing stanzas (\xep{0198}).
void setAcknowledgedSequenceNumber(unsigned sequenceNumber);
private:
/// Handles an incoming acknowledgement from \xep{0198}.
///
/// \param element
void handleAcknowledgement(QDomElement &element);
/// Sends an acknowledgement as defined in \xep{0198}.
void sendAcknowledgement();
/// Sends an acknowledgement request as defined in \xep{0198}.
void sendAcknowledgementRequest();
public Q_SLOTS:
virtual void disconnectFromHost();
virtual bool sendData(const QByteArray &);
private Q_SLOTS:
void _q_socketConnected();
void _q_socketEncrypted();
void _q_socketError(QAbstractSocket::SocketError error);
void _q_socketReadyRead();
private:
QXmppStreamPrivate *const d;
};
#endif // QXMPPSTREAM_H
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