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/**************************************************************************
**
** Copyright (C) 2017 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 EXTRACTARCHIVEOPERATION_P_H
#define EXTRACTARCHIVEOPERATION_P_H
#include "extractarchiveoperation.h"
#include "fileutils.h"
#include "lib7z_extract.h"
#include "lib7z_facade.h"
#include "packagemanagercore.h"
#include <QRunnable>
#include <QThread>
namespace QInstaller {
class WorkerThread : public QThread
{
Q_OBJECT
Q_DISABLE_COPY(WorkerThread)
public:
WorkerThread(ExtractArchiveOperation *op, const QStringList &files)
: m_files(files)
, m_op(op)
{
setObjectName(QLatin1String("ExtractArchive"));
}
void run()
{
Q_ASSERT(m_op != 0);
int removedCounter = 0;
foreach (const QString &file, m_files) {
removedCounter++;
const QFileInfo fi(file);
emit currentFileChanged(QDir::toNativeSeparators(file));
emit progressChanged(double(removedCounter) / m_files.count());
if (fi.isFile() || fi.isSymLink()) {
m_op->deleteFileNowOrLater(fi.absoluteFilePath());
} else if (fi.isDir()) {
removeSystemGeneratedFiles(file);
fi.dir().rmdir(file); // directory may not exist
}
}
}
signals:
void currentFileChanged(const QString &filename);
void progressChanged(double);
private:
QStringList m_files;
ExtractArchiveOperation *m_op;
};
typedef QPair<QString, QString> Backup;
typedef QVector<Backup> BackupFiles;
class ExtractArchiveOperation::Callback : public QObject, public Lib7z::ExtractCallback
{
Q_OBJECT
Q_DISABLE_COPY(Callback)
public:
Callback() = default;
BackupFiles backupFiles() const {
return m_backupFiles;
}
QStringList extractedFiles() const {
return m_extractedFiles;
}
public slots:
void statusChanged(QInstaller::PackageManagerCore::Status status)
{
switch(status) {
case PackageManagerCore::Canceled:
m_state = E_ABORT;
break;
case PackageManagerCore::Failure:
m_state = E_FAIL;
break;
default: // ignore all other status values
break;
}
}
signals:
void progressChanged(double progress);
private:
void setCurrentFile(const QString &filename) Q_DECL_OVERRIDE
{
m_extractedFiles.prepend(QDir::toNativeSeparators(filename));
}
static QString generateBackupName(const QString &fn)
{
const QString bfn = fn + QLatin1String(".tmpUpdate");
QString res = bfn;
int i = 0;
while (QFile::exists(res))
res = bfn + QString::fromLatin1(".%1").arg(i++);
return res;
}
bool prepareForFile(const QString &filename) Q_DECL_OVERRIDE
{
if (!QFile::exists(filename))
return true;
const QString backup = generateBackupName(filename);
QFile f(filename);
const bool renamed = f.rename(backup);
if (f.exists() && !renamed) {
qCritical("Cannot rename %s to %s: %s", qPrintable(filename), qPrintable(backup),
qPrintable(f.errorString()));
return false;
}
m_backupFiles.append(qMakePair(filename, backup));
return true;
}
HRESULT setCompleted(quint64 completed, quint64 total) Q_DECL_OVERRIDE
{
emit progressChanged(double(completed) / total);
return m_state;
}
private:
HRESULT m_state = S_OK;
BackupFiles m_backupFiles;
QStringList m_extractedFiles;
};
class ExtractArchiveOperation::Runnable : public QObject, public QRunnable
{
Q_OBJECT
Q_DISABLE_COPY(Runnable)
public:
Runnable(const QString &archivePath, const QString &targetDir,
ExtractArchiveOperation::Callback *callback)
: m_archivePath(archivePath)
, m_targetDir(targetDir)
, m_callback(callback)
{}
void run()
{
QFile archive(m_archivePath);
if (!archive.open(QIODevice::ReadOnly)) {
emit finished(false, tr("Cannot open archive \"%1\" for reading: %2").arg(m_archivePath,
archive.errorString()));
return;
}
try {
Lib7z::extractArchive(&archive, m_targetDir, m_callback);
emit finished(true, QString());
} catch (const Lib7z::SevenZipException& e) {
emit finished(false, tr("Error while extracting archive \"%1\": %2").arg(m_archivePath,
e.message()));
} catch (...) {
emit finished(false, tr("Unknown exception caught while extracting \"%1\".")
.arg(m_archivePath));
}
}
signals:
void finished(bool success, const QString &errorString);
private:
QString m_archivePath;
QString m_targetDir;
ExtractArchiveOperation::Callback *m_callback;
};
class ExtractArchiveOperation::Receiver : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(Receiver)
public:
Receiver() = default;
bool success() const {
return m_success;
}
QString errorString() const {
return m_errorString;
}
public slots:
void runnableFinished(bool ok, const QString &msg)
{
m_success = ok;
m_errorString = msg;
emit finished();
}
signals:
void finished();
private:
bool m_success = false;
QString m_errorString;
};
}
#endif // EXTRACTARCHIVEOPERATION_P_H
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