qcoapqudpconnection_p.h

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// Copyright (C) 2017 Witekio.

// Copyright (C) 2018 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

// Qt-Security score:significant reason:default

#ifndef QCOAPQUDPCONNECTION_P_H

#define QCOAPQUDPCONNECTION_P_H

#include <QtCoap/qcoapsecurityconfiguration.h>

#include <private/qcoapconnection_p.h>

#include <QtNetwork/qudpsocket.h>

#include <QtCore/qpointer.h>

#include <QtCore/qqueue.h>

#include <optional>

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API. It exists purely as an

// implementation detail. This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

QT_BEGIN_NAMESPACE

class QDtls;

class QSslPreSharedKeyAuthenticator;

class QCoapQUdpConnectionPrivate;

class Q_AUTOTEST_EXPORT QCoapQUdpConnection : public QCoapConnection

    Q_OBJECT

public:

    explicit QCoapQUdpConnection(QtCoap::SecurityMode security = QtCoap::SecurityMode::NoSecurity,

                                 QObject *parent = nullptr);

    ~QCoapQUdpConnection() override = default;

    QUdpSocket *socket() const;

public Q_SLOTS:

    void setSocketOption(QAbstractSocket::SocketOption, const QVariant &value);

#if QT_CONFIG(dtls)

private Q_SLOTS:

    void pskRequired(QSslPreSharedKeyAuthenticator *authenticator);

    void handshakeTimeout();

#endif

protected:

    explicit QCoapQUdpConnection(QCoapQUdpConnectionPrivate &dd, QObject *parent = nullptr);

    void bind(const QString &host, quint16 port) override;

    void writeData(const QByteArray &data, const QString &host, quint16 port) override;

    void close() override;

    void createSocket();

    Q_DECLARE_PRIVATE(QCoapQUdpConnection)

};

class Q_AUTOTEST_EXPORT QCoapQUdpConnectionPrivate : public QCoapConnectionPrivate

public:

    QCoapQUdpConnectionPrivate(QtCoap::SecurityMode security = QtCoap::SecurityMode::NoSecurity);

    ~QCoapQUdpConnectionPrivate() override;

    virtual bool bind();

    void bindSocket();

    void writeToSocket(const QByteArray &data, const QString &host, quint16 port);

    QUdpSocket* socket() const { return udpSocket; }

    void socketReadyRead();

    void setSecurityConfiguration(const QCoapSecurityConfiguration &configuration);

    bool datagramMatchesNetworkInterface(const QNetworkDatagram &datagram) const;

#if QT_CONFIG(dtls)

    std::optional<QNetworkDatagram> receiveDatagramDecrypted() const;

    void handleEncryptedDatagram();

    QPointer<QDtls> dtls;

#endif

    QPointer<QUdpSocket> udpSocket;

    Q_DECLARE_PUBLIC(QCoapQUdpConnection)

};

QT_END_NAMESPACE

#endif // QCOAPQUDPCONNECTION_P_H