qandroidapkfileengine.h

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// Copyright (C) 2024 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 QANDROIDAPKFILEENGINE_H

#define QANDROIDAPKFILEENGINE_H

#include <QtCore/private/qabstractfileengine_p.h>

#include <QtCore/qjnitypes.h>

#include <QtCore/QJniObject>

QT_BEGIN_NAMESPACE

Q_DECLARE_JNI_CLASS(QtApkFileEngine, "org/qtproject/qt/android/QtApkFileEngine")

class QAndroidApkFileEngine : public QAbstractFileEngine

public:

    QAndroidApkFileEngine(const QString &fileName);

    ~QAndroidApkFileEngine();

    struct FileInfo

        QString relativePath;

        qint64 size = -1;

        bool isDir;

};

    bool open(QIODevice::OpenMode openMode, std::optional<QFile::Permissions> permissions) override;

    bool close() override;

    qint64 size() const override;

    qint64 pos() const override;

    bool seek(qint64 pos) override;

    qint64 read(char *data, qint64 maxlen) override;

    FileFlags fileFlags(FileFlags type = FileInfoAll) const override;

    bool caseSensitive() const override { return true; }

    QString fileName(FileName file = DefaultName) const override;

    void setFileName(const QString &file) override;

    uchar *map(qint64 offset, qint64 size, QFile::MemoryMapFlags flags);

    bool extension(Extension extension, const ExtensionOption *option = nullptr,

                   ExtensionReturn *output = nullptr) override;

    bool supportsExtension(Extension extension) const override;

    static QString apkPath();

    static QString relativePath(const QString &filePath);

#ifndef QT_NO_FILESYSTEMITERATOR

    IteratorUniquePtr beginEntryList(const QString &, QDirListing::IteratorFlags filters,

                                     const QStringList &filterNames) override;

#endif

private:

    QString m_fileName;

    FileInfo *m_fileInfo = nullptr;

    QtJniTypes::QtApkFileEngine m_apkFileEngine;

};

#ifndef QT_NO_FILESYSTEMITERATOR

class QAndroidApkFileEngineIterator : public QAbstractFileEngineIterator

public:

    QAndroidApkFileEngineIterator(const QString &path,

                                  QDirListing::IteratorFlags filters,

                                  const QStringList &filterNames);

    ~QAndroidApkFileEngineIterator();

    bool advance() override;

    QString currentFileName() const override;

private:

    int m_index = -1;

    qsizetype m_prefixLength = 0;

    QList<QAndroidApkFileEngine::FileInfo *> m_infos;

};

#endif

class QAndroidApkFileEngineHandler : public QAbstractFileEngineHandler

    Q_DISABLE_COPY_MOVE(QAndroidApkFileEngineHandler)

public:

    QAndroidApkFileEngineHandler() = default;

    std::unique_ptr<QAbstractFileEngine> create(const QString &fileName) const override;

};

QT_END_NAMESPACE

#endif // QANDROIDAPKFILEENGINE_H