qsslsocket_p.h - mozsearch

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// Copyright (C) 2021 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant reason:default

#ifndef QSSLSOCKET_P_H

#define QSSLSOCKET_P_H

#include "qsslsocket.h"

//

//  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.

//

#include <QtNetwork/private/qtnetworkglobal_p.h>

#include <private/qtcpsocket_p.h>

#include "qocspresponse.h"

#include "qsslconfiguration_p.h"

#include "qsslkey.h"

#include "qtlsbackend_p.h"

#include <QtCore/qlist.h>

#include <QtCore/qmutex.h>

#include <QtCore/qstringlist.h>

#include <memory>

QT_BEGIN_NAMESPACE

class QSslContext;

class QTlsBackend;

class Q_NETWORK_EXPORT QSslSocketPrivate : public QTcpSocketPrivate

    Q_DECLARE_PUBLIC(QSslSocket)

public:

    QSslSocketPrivate();

    virtual ~QSslSocketPrivate();

    void init();

    bool verifyProtocolSupported(const char *where);

    bool initialized;

    QSslSocket::SslMode mode;

    bool autoStartHandshake;

    bool connectionEncrypted;

    bool ignoreAllSslErrors;

    QList<QSslError> ignoreErrorsList;

    bool* readyReadEmittedPointer;

    QSslConfigurationPrivate configuration;

    // if set, this hostname is used for certificate validation instead of the hostname

    // that was used for connecting to.

    QString verificationPeerName;

    bool allowRootCertOnDemandLoading;

    static bool s_loadRootCertsOnDemand;

    static bool supportsSsl();

    static void ensureInitialized();

    static QList<QSslCipher> defaultCiphers();

    static QList<QSslCipher> defaultDtlsCiphers();

    static QList<QSslCipher> supportedCiphers();

    static void setDefaultCiphers(const QList<QSslCipher> &ciphers);

    static void setDefaultDtlsCiphers(const QList<QSslCipher> &ciphers);

    static void setDefaultSupportedCiphers(const QList<QSslCipher> &ciphers);

    static QList<QSslEllipticCurve> supportedEllipticCurves();

    static void setDefaultSupportedEllipticCurves(const QList<QSslEllipticCurve> &curves);

    static void resetDefaultEllipticCurves();

    static QList<QSslCertificate> defaultCaCertificates();

    static QList<QSslCertificate> systemCaCertificates();

    static void setDefaultCaCertificates(const QList<QSslCertificate> &certs);

    static void addDefaultCaCertificate(const QSslCertificate &cert);

    static void addDefaultCaCertificates(const QList<QSslCertificate> &certs);

    static bool isMatchingHostname(const QSslCertificate &cert, const QString &peerName);

    static bool isMatchingHostname(const QString &cn, const QString &hostname);

    // The socket itself, including private slots.

    QTcpSocket *plainSocket = nullptr;

    void createPlainSocket(QIODevice::OpenMode openMode);

    static void pauseSocketNotifiers(QSslSocket*);

    static void resumeSocketNotifiers(QSslSocket*);

    // ### The 2 methods below should be made member methods once the QSslContext class is made public

    static void checkSettingSslContext(QSslSocket*, std::shared_ptr<QSslContext>);

    static std::shared_ptr<QSslContext> sslContext(QSslSocket *socket);

    bool isPaused() const;

    void setPaused(bool p);

    bool bind(const QHostAddress &address, quint16, QAbstractSocket::BindMode, const QNetworkInterface *iface = nullptr) override;

    void _q_connectedSlot();

    void _q_hostFoundSlot();

    void _q_disconnectedSlot();

    void _q_stateChangedSlot(QAbstractSocket::SocketState);

    void _q_errorSlot(QAbstractSocket::SocketError);

    void _q_readyReadSlot();

    void _q_channelReadyReadSlot(int);

    void _q_bytesWrittenSlot(qint64);

    void _q_channelBytesWrittenSlot(int, qint64);

    void _q_readChannelFinishedSlot();

    void _q_flushWriteBuffer();

    void _q_flushReadBuffer();

    void _q_resumeImplementation();

    static QList<QByteArray> unixRootCertDirectories(); // used also by QSslContext

    qint64 peek(char *data, qint64 maxSize) override;

    QByteArray peek(qint64 maxSize) override;

    bool flush() override;

    void startClientEncryption();

    void startServerEncryption();

    void transmit();

    void disconnectFromHost();

    void disconnected();

    QSslCipher sessionCipher() const;

    QSsl::SslProtocol sessionProtocol() const;

    void continueHandshake();

    static bool rootCertOnDemandLoadingSupported();

    static void setRootCertOnDemandLoadingSupported(bool supported);

    static QTlsBackend *tlsBackendInUse();

    // Needed by TlsCryptograph:

    QSslSocket::SslMode tlsMode() const;

    bool isRootsOnDemandAllowed() const;

    QString verificationName() const;

    QString tlsHostName() const;

    QTcpSocket *plainTcpSocket() const;

    bool verifyErrorsHaveBeenIgnored();

    bool isAutoStartingHandshake() const;

    bool isPendingClose() const;

    void setPendingClose(bool pc);

    qint64 maxReadBufferSize() const;

    void setMaxReadBufferSize(qint64 maxSize);

    void setEncrypted(bool enc);

    QRingBufferRef &tlsWriteBuffer();

    QRingBufferRef &tlsBuffer();

    bool &tlsEmittedBytesWritten();

    bool *readyReadPointer();

protected:

    bool hasUndecryptedData() const;

    bool paused;

    bool flushTriggered;

    static inline QMutex backendMutex;

    static inline QString activeBackendName;

    static inline QTlsBackend *tlsBackend = nullptr;

    std::unique_ptr<QTlsPrivate::TlsCryptograph> backend;

};

QT_END_NAMESPACE

#endif