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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 QT_TESTS_SHARED_FILESYSTEM_H_INCLUDED
#define QT_TESTS_SHARED_FILESYSTEM_H_INCLUDED
#include <QString>
#include <QStringList>
#include <QTemporaryDir>
#include <QScopedPointer>
#include <QDir>
#include <QFile>
#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE)
#include <windows.h>
#include <winioctl.h>
#ifndef IO_REPARSE_TAG_MOUNT_POINT
#define IO_REPARSE_TAG_MOUNT_POINT (0xA0000003L)
#endif
#define REPARSE_MOUNTPOINT_HEADER_SIZE 8
#ifndef FSCTL_SET_REPARSE_POINT
#define FSCTL_SET_REPARSE_POINT CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 41, METHOD_BUFFERED, FILE_SPECIAL_ACCESS)
#endif
#endif
// QTemporaryDir-based helper class for creating file-system hierarchies and cleaning up.
class FileSystem
{
Q_DISABLE_COPY(FileSystem)
public:
FileSystem() : m_temporaryDir(FileSystem::tempFilePattern()) {}
QString path() const { return m_temporaryDir.path(); }
QString absoluteFilePath(const QString &fileName) const { return path() + QLatin1Char('/') + fileName; }
bool createDirectory(const QString &relativeDirName)
{
if (m_temporaryDir.isValid()) {
QDir dir(m_temporaryDir.path());
return dir.mkpath(relativeDirName);
}
return false;
}
bool createFile(const QString &relativeFileName)
{
QScopedPointer<QFile> file(openFileForWrite(relativeFileName));
return !file.isNull();
}
qint64 createFileWithContent(const QString &relativeFileName)
{
QScopedPointer<QFile> file(openFileForWrite(relativeFileName));
return file.isNull() ? qint64(-1) : file->write(relativeFileName.toUtf8());
}
#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) && !defined(Q_OS_WINRT)
static void createNtfsJunction(QString target, QString linkName)
{
typedef struct {
DWORD ReparseTag;
DWORD ReparseDataLength;
WORD Reserved;
WORD ReparseTargetLength;
WORD ReparseTargetMaximumLength;
WORD Reserved1;
WCHAR ReparseTarget[1];
} REPARSE_MOUNTPOINT_DATA_BUFFER, *PREPARSE_MOUNTPOINT_DATA_BUFFER;
char reparseBuffer[MAX_PATH*3];
HANDLE hFile;
DWORD returnedLength;
wchar_t fileSystem[MAX_PATH] = L"";
PREPARSE_MOUNTPOINT_DATA_BUFFER reparseInfo = (PREPARSE_MOUNTPOINT_DATA_BUFFER) reparseBuffer;
QFileInfo junctionInfo(linkName);
linkName = QDir::toNativeSeparators(junctionInfo.absoluteFilePath());
GetVolumeInformationW( (wchar_t*)linkName.left(3).utf16(), NULL, 0, NULL, NULL, NULL,
fileSystem, sizeof(fileSystem)/sizeof(WCHAR));
if(QString().fromWCharArray(fileSystem) != "NTFS")
QSKIP("This seems not to be an NTFS volume. Junctions are not allowed.");
if (!target.startsWith("\\??\\") && !target.startsWith("\\\\?\\")) {
QFileInfo targetInfo(target);
target = QDir::toNativeSeparators(targetInfo.absoluteFilePath());
target.prepend("\\??\\");
if(target.endsWith('\\') && target.at(target.length()-2) != ':')
target.chop(1);
}
QDir().mkdir(linkName);
hFile = CreateFileW( (wchar_t*)linkName.utf16(), GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
FILE_FLAG_OPEN_REPARSE_POINT|FILE_FLAG_BACKUP_SEMANTICS, NULL );
QVERIFY(hFile != INVALID_HANDLE_VALUE );
memset( reparseInfo, 0, sizeof( *reparseInfo ));
reparseInfo->ReparseTag = IO_REPARSE_TAG_MOUNT_POINT;
reparseInfo->ReparseTargetLength = WORD(target.size()) * WORD(sizeof(wchar_t));
reparseInfo->ReparseTargetMaximumLength = reparseInfo->ReparseTargetLength + sizeof(wchar_t);
target.toWCharArray(reparseInfo->ReparseTarget);
reparseInfo->ReparseDataLength = reparseInfo->ReparseTargetLength + 12;
bool ioc = DeviceIoControl(hFile, FSCTL_SET_REPARSE_POINT, reparseInfo,
reparseInfo->ReparseDataLength + REPARSE_MOUNTPOINT_HEADER_SIZE,
NULL, 0, &returnedLength, NULL);
CloseHandle( hFile );
QVERIFY(ioc);
}
#endif
private:
static QString tempFilePattern()
{
QString result = QDir::tempPath();
if (!result.endsWith(QLatin1Char('/')))
result.append(QLatin1Char('/'));
result += QStringLiteral("qt-test-filesystem-");
result += QCoreApplication::applicationName();
result += QStringLiteral("-XXXXXX");
return result;
}
QFile *openFileForWrite(const QString &fileName) const
{
if (m_temporaryDir.isValid()) {
const QString absName = absoluteFilePath(fileName);
QScopedPointer<QFile> file(new QFile(absName));
if (file->open(QIODevice::WriteOnly))
return file.take();
qWarning("Cannot open '%s' for writing: %s", qPrintable(absName), qPrintable(file->errorString()));
}
return 0;
}
QTemporaryDir m_temporaryDir;
};
#endif // include guard
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