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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.
**
** $QT_END_LICENSE$
**
**************************************************************************/
#include "lib7zarchive.h"
#include "errors.h"
#include "lib7z_facade.h"
#include "lib7z_create.h"
#include "lib7z_list.h"
#include <QCoreApplication>
namespace QInstaller {
/*!
\inmodule QtInstallerFramework
\class QInstaller::Lib7zArchive
\brief The Lib7zArchive class represents an archive file
handled with the LZMA software development kit.
*/
/*!
\inmodule QtInstallerFramework
\class QInstaller::Lib7zArchive::ExtractCallbackWrapper
\internal
*/
/*!
Constructs an archive object representing an archive file
specified by \a filename with \a parent as parent object.
*/
Lib7zArchive::Lib7zArchive(const QString &filename, QObject *parent)
: AbstractArchive(parent)
, m_extractCallback(new ExtractCallbackWrapper())
{
Lib7zArchive::setFilename(filename);
listenExtractCallback();
}
/*!
Constructs an archive object with the given \a parent.
*/
Lib7zArchive::Lib7zArchive(QObject *parent)
: AbstractArchive(parent)
, m_extractCallback(new ExtractCallbackWrapper())
{
listenExtractCallback();
}
/*!
Destroys the instance and releases resources.
*/
Lib7zArchive::~Lib7zArchive()
{
delete m_extractCallback;
}
/*!
\reimp
Opens the underlying file device using \a mode. Returns \c true if
succesfull; otherwise \c false.
*/
bool Lib7zArchive::open(QIODevice::OpenMode mode)
{
if (!m_file.open(mode)) {
setErrorString(m_file.errorString());
return false;
}
return true;
}
/*!
\reimp
Closes the underlying file device.
*/
void Lib7zArchive::close()
{
m_file.close();
}
/*!
\reimp
Sets the \a filename of the underlying file device.
*/
void Lib7zArchive::setFilename(const QString &filename)
{
m_file.setFileName(filename);
}
/*!
\reimp
Extracts the contents of this archive to \a dirPath.
Returns \c true on success; \c false otherwise.
*/
bool Lib7zArchive::extract(const QString &dirPath)
{
m_extractCallback->setState(S_OK);
try {
Lib7z::extractArchive(&m_file, dirPath, m_extractCallback);
} catch (const Lib7z::SevenZipException &e) {
setErrorString(e.message());
return false;
}
return true;
}
/*!
\reimp
Extracts the contents of this archive to \a dirPath. The \a totalFiles
parameter is unused. Returns \c true on success; \c false otherwise.
*/
bool Lib7zArchive::extract(const QString &dirPath, const quint64 totalFiles)
{
Q_UNUSED(totalFiles)
return extract(dirPath);
}
/*!
\reimp
Packages the given \a data into the archive and creates the file on disk.
*/
bool Lib7zArchive::create(const QStringList &data)
{
try {
// No support for callback yet.
Lib7z::createArchive(&m_file, data, compressionLevel());
} catch (const Lib7z::SevenZipException &e) {
setErrorString(e.message());
return false;
}
return true;
}
/*!
\reimp
Returns the contents of this archive as an array of \c ArchiveEntry objects.
On failure, returns an empty array.
*/
QVector<ArchiveEntry> Lib7zArchive::list()
{
try {
return Lib7z::listArchive(&m_file);
} catch (const Lib7z::SevenZipException &e) {
setErrorString(e.message());
return QVector<ArchiveEntry>();
}
}
/*!
\reimp
Returns \c true if the current archive is of supported format;
\c false otherwise.
*/
bool Lib7zArchive::isSupported()
{
try {
return Lib7z::isSupportedArchive(&m_file);
} catch (const Lib7z::SevenZipException &e) {
setErrorString(e.message());
return false;
}
}
/*!
\reimp
Cancels the extract operation in progress.
*/
void Lib7zArchive::cancel()
{
m_extractCallback->setState(E_ABORT);
}
/*!
\internal
*/
void Lib7zArchive::listenExtractCallback()
{
connect(m_extractCallback, &ExtractCallbackWrapper::currentEntryChanged,
this, &Lib7zArchive::currentEntryChanged);
connect(m_extractCallback, &ExtractCallbackWrapper::completedChanged,
this, &Lib7zArchive::completedChanged);
}
Lib7zArchive::ExtractCallbackWrapper::ExtractCallbackWrapper()
: m_state(S_OK)
{
}
void Lib7zArchive::ExtractCallbackWrapper::setState(HRESULT state)
{
m_state = state;
}
void Lib7zArchive::ExtractCallbackWrapper::setCurrentFile(const QString &filename)
{
emit currentEntryChanged(filename);
}
HRESULT Lib7zArchive::ExtractCallbackWrapper::setCompleted(quint64 completed, quint64 total)
{
qApp->processEvents();
emit completedChanged(completed, total);
return m_state;
}
} // namespace QInstaller
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