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// Copyright (C) 2016 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
#ifndef QFILESYSTEMENGINE_P_H
#define QFILESYSTEMENGINE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qfile.h"
#include "qfilesystementry_p.h"
#include "qfilesystemmetadata_p.h"
#include <QtCore/private/qsystemerror_p.h>
#include <memory>
#include <optional>
QT_BEGIN_NAMESPACE
#define Q_RETURN_ON_INVALID_FILENAME(message, result) \
{ \
QMessageLogger(QT_MESSAGELOG_FILE, QT_MESSAGELOG_LINE, QT_MESSAGELOG_FUNC).warning(message); \
errno = EINVAL; \
return (result); \
}
inline bool qIsFilenameBroken(const QByteArray &name)
{
return name.contains('\0');
}
inline bool qIsFilenameBroken(const QString &name)
{
return name.contains(QLatin1Char('\0'));
}
inline bool qIsFilenameBroken(const QFileSystemEntry &entry)
{
return qIsFilenameBroken(entry.nativeFilePath());
}
#define Q_CHECK_FILE_NAME(name, result) \
do { \
if (Q_UNLIKELY((name).isEmpty())) \
Q_RETURN_ON_INVALID_FILENAME("Empty filename passed to function", (result)); \
if (Q_UNLIKELY(qIsFilenameBroken(name))) \
Q_RETURN_ON_INVALID_FILENAME("Broken filename passed to function", (result)); \
} while (false)
class Q_AUTOTEST_EXPORT QFileSystemEngine
{
public:
static bool isCaseSensitive()
{
#ifndef Q_OS_WIN
return true;
#else
return false;
#endif
}
static QFileSystemEntry getLinkTarget(const QFileSystemEntry &link, QFileSystemMetaData &data);
static QFileSystemEntry getRawLinkPath(const QFileSystemEntry &link,
QFileSystemMetaData &data);
static QFileSystemEntry getJunctionTarget(const QFileSystemEntry &link, QFileSystemMetaData &data);
static QFileSystemEntry canonicalName(const QFileSystemEntry &entry, QFileSystemMetaData &data);
static QFileSystemEntry absoluteName(const QFileSystemEntry &entry);
static QByteArray id(const QFileSystemEntry &entry);
static QString resolveUserName(const QFileSystemEntry &entry, QFileSystemMetaData &data);
static QString resolveGroupName(const QFileSystemEntry &entry, QFileSystemMetaData &data);
#if defined(Q_OS_UNIX)
static QString resolveUserName(uint userId);
static QString resolveGroupName(uint groupId);
#endif
#if defined(Q_OS_DARWIN)
static QString bundleName(const QFileSystemEntry &entry);
#else
static QString bundleName(const QFileSystemEntry &) { return QString(); }
#endif
static bool fillMetaData(const QFileSystemEntry &entry, QFileSystemMetaData &data,
QFileSystemMetaData::MetaDataFlags what);
#if defined(Q_OS_UNIX)
static bool cloneFile(int srcfd, int dstfd, const QFileSystemMetaData &knownData);
static bool fillMetaData(int fd, QFileSystemMetaData &data); // what = PosixStatFlags
static QByteArray id(int fd);
static bool setFileTime(int fd, const QDateTime &newDate,
QFile::FileTime whatTime, QSystemError &error);
static bool setPermissions(int fd, QFile::Permissions permissions, QSystemError &error,
QFileSystemMetaData *data = nullptr);
#endif
#if defined(Q_OS_WIN)
static QFileSystemEntry junctionTarget(const QFileSystemEntry &link, QFileSystemMetaData &data);
static bool uncListSharesOnServer(const QString &server, QStringList *list); //Used also by QFSFileEngineIterator::hasNext()
static bool fillMetaData(int fd, QFileSystemMetaData &data,
QFileSystemMetaData::MetaDataFlags what);
static bool fillMetaData(HANDLE fHandle, QFileSystemMetaData &data,
QFileSystemMetaData::MetaDataFlags what);
static bool fillPermissions(const QFileSystemEntry &entry, QFileSystemMetaData &data,
QFileSystemMetaData::MetaDataFlags what);
static QByteArray id(HANDLE fHandle);
static bool setFileTime(HANDLE fHandle, const QDateTime &newDate,
QFile::FileTime whatTime, QSystemError &error);
static QString owner(const QFileSystemEntry &entry, QAbstractFileEngine::FileOwner own);
static QString nativeAbsoluteFilePath(const QString &path);
static bool isDirPath(const QString &path, bool *existed);
#endif
//homePath, rootPath and tempPath shall return clean paths
static QString homePath();
static QString rootPath();
static QString tempPath();
static bool createDirectory(const QFileSystemEntry &entry, bool createParents,
std::optional<QFile::Permissions> permissions = std::nullopt);
static bool removeDirectory(const QFileSystemEntry &entry, bool removeEmptyParents);
static bool createLink(const QFileSystemEntry &source, const QFileSystemEntry &target, QSystemError &error);
static bool copyFile(const QFileSystemEntry &source, const QFileSystemEntry &target, QSystemError &error);
static bool moveFileToTrash(const QFileSystemEntry &source, QFileSystemEntry &newLocation, QSystemError &error);
static bool renameFile(const QFileSystemEntry &source, const QFileSystemEntry &target, QSystemError &error);
static bool renameOverwriteFile(const QFileSystemEntry &source, const QFileSystemEntry &target, QSystemError &error);
static bool removeFile(const QFileSystemEntry &entry, QSystemError &error);
static bool setPermissions(const QFileSystemEntry &entry, QFile::Permissions permissions, QSystemError &error,
QFileSystemMetaData *data = nullptr);
// unused, therefore not implemented
static bool setFileTime(const QFileSystemEntry &entry, const QDateTime &newDate,
QFile::FileTime whatTime, QSystemError &error);
static bool setCurrentPath(const QFileSystemEntry &entry);
static QFileSystemEntry currentPath();
static std::unique_ptr<QAbstractFileEngine>
createLegacyEngine(QFileSystemEntry &entry, QFileSystemMetaData &data);
private:
static QString slowCanonicalized(const QString &path);
#if defined(Q_OS_WIN)
static void clearWinStatData(QFileSystemMetaData &data);
#endif
};
QT_END_NAMESPACE
#endif // include guard
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