QXmppStream.h

/*
 * 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;
 
 
class QXMPP_EXPORT QXmppStream : public QXmppLoggable
{
    Q_OBJECT
 
public:
    QXmppStream(QObject *parent);
    ~QXmppStream() override;
 
    virtual bool isConnected() const;
    bool sendPacket(const QXmppStanza &);
 
Q_SIGNALS:
    void connected();
 
    void disconnected();
 
protected:
    // Access to underlying socket
    QSslSocket *socket() const;
    void setSocket(QSslSocket *socket);
 
    // Overridable methods
    virtual void handleStart();
 
    virtual void handleStanza(const QDomElement &element) = 0;
 
    virtual void handleStream(const QDomElement &element) = 0;
 
    // XEP-0198: Stream Management
    void enableStreamManagement(bool resetSequenceNumber);
    unsigned lastIncomingSequenceNumber() const;
    void setAcknowledgedSequenceNumber(unsigned sequenceNumber);
 
private:
    // XEP-0198: Stream Management
    void handleAcknowledgement(QDomElement &element);
    void sendAcknowledgement();
    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