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/**************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Installer Framework.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
**************************************************************************/
#ifndef LIBARCHIVEARCHIVE_H
#define LIBARCHIVEARCHIVE_H
#include "installer_global.h"
#include "abstractarchive.h"
#include <archive.h>
#include <archive_entry.h>
#include <QThread>
#if defined(_MSC_VER)
#include <BaseTsd.h>
typedef SSIZE_T ssize_t;
#endif
namespace QInstaller {
class ExtractWorker : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(ExtractWorker)
public:
enum Status {
Success = 0,
Failure = 1,
Canceled = 2,
Unfinished = 3
};
ExtractWorker() = default;
Status status() const;
public Q_SLOTS:
void extract(const QString &dirPath, const quint64 totalFiles);
void addDataBlock(const QByteArray buffer);
void onFilePositionChanged(qint64 pos);
void cancel();
Q_SIGNALS:
void dataBlockRequested();
void dataAtEnd();
void dataReadyForRead();
void seekRequested(qint64 offset, int whence);
void seekReady();
void finished(const QString &errorString = QString());
void currentEntryChanged(const QString &filename);
void completedChanged(quint64 completed, quint64 total);
private:
static ssize_t readCallback(archive *reader, void *caller, const void **buff);
static la_int64_t seekCallback(archive *reader, void *caller, la_int64_t offset, int whence);
bool writeEntry(archive *reader, archive *writer, archive_entry *entry);
private:
QByteArray m_buffer;
qint64 m_lastPos = 0;
Status m_status;
};
class INSTALLER_EXPORT LibArchiveArchive : public AbstractArchive
{
Q_OBJECT
Q_DISABLE_COPY(LibArchiveArchive)
public:
LibArchiveArchive(const QString &filename, QObject *parent = nullptr);
explicit LibArchiveArchive(QObject *parent = nullptr);
~LibArchiveArchive();
bool open(QIODevice::OpenMode mode) Q_DECL_OVERRIDE;
void close() Q_DECL_OVERRIDE;
void setFilename(const QString &filename) Q_DECL_OVERRIDE;
bool extract(const QString &dirPath) Q_DECL_OVERRIDE;
bool extract(const QString &dirPath, const quint64 totalFiles) Q_DECL_OVERRIDE;
bool create(const QStringList &data) Q_DECL_OVERRIDE;
QVector<ArchiveEntry> list() Q_DECL_OVERRIDE;
bool isSupported() Q_DECL_OVERRIDE;
void workerExtract(const QString &dirPath, const quint64 totalFiles);
void workerAddDataBlock(const QByteArray buffer);
void workerSetDataAtEnd();
void workerSetFilePosition(qint64 pos);
void workerCancel();
ExtractWorker::Status workerStatus() const;
Q_SIGNALS:
void dataBlockRequested();
void seekRequested(qint64 offset, int whence);
void workerFinished();
void workerAboutToExtract(const QString &dirPath, const quint64 totalFiles);
void workerAboutToAddDataBlock(const QByteArray buffer);
void workerAboutToSetDataAtEnd();
void workerAboutToSetFilePosition(qint64 pos);
void workerAboutToCancel();
public Q_SLOTS:
void cancel() Q_DECL_OVERRIDE;
private Q_SLOTS:
void onWorkerFinished(const QString &errorString);
private:
static void configureReader(archive *archive);
void configureWriter(archive *archive);
static void configureDiskReader(archive *archive);
static void configureDiskWriter(archive *archive);
void initExtractWorker();
int archiveReadOpenWithCallbacks(archive *reader);
bool writeEntry(archive *reader, archive *writer, archive_entry *entry);
static qint64 readData(QFile *file, char *data, qint64 maxSize);
static ssize_t readCallback(archive *reader, void *archiveData, const void **buff);
static la_int64_t seekCallback(archive *reader, void *archiveData, la_int64_t offset, int whence);
static QString pathWithoutNamespace(const QString &path);
quint64 totalFiles();
private:
friend class ExtractWorker;
friend class LibArchiveWrapperPrivate;
struct ArchiveData
{
QFile file;
QByteArray buffer;
};
private:
ArchiveData *m_data;
ExtractWorker m_worker;
QThread m_workerThread;
bool m_cancelScheduled;
};
struct ScopedPointerReaderDeleter
{
static inline void cleanup(archive *p)
{
archive_read_free(p);
}
};
struct ScopedPointerWriterDeleter
{
static inline void cleanup(archive *p)
{
archive_write_free(p);
}
};
struct ScopedPointerEntryDeleter
{
static inline void cleanup(archive_entry *p)
{
archive_entry_free(p);
}
};
} // namespace QInstaller
#endif // LIBARCHIVEARCHIVE_H
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