ladybird/Userland/Libraries/LibCore/FilePermissionsMask.h
Linus Groh 6e19ab2bbc AK+Everywhere: Rename String to DeprecatedString
We have a new, improved string type coming up in AK (OOM aware, no null
state), and while it's going to use UTF-8, the name UTF8String is a
mouthful - so let's free up the String name by renaming the existing
class.
Making the old one have an annoying name will hopefully also help with
quick adoption :^)
2022-12-06 08:54:33 +01:00

58 lines
1.6 KiB
C++

/*
* Copyright (c) 2021, Xavier Defrang <xavier.defrang@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/DeprecatedString.h>
#include <AK/Error.h>
#include <AK/OwnPtr.h>
#include <sys/stat.h>
namespace Core {
class FilePermissionsMask {
public:
static ErrorOr<FilePermissionsMask> parse(StringView string);
static ErrorOr<FilePermissionsMask> from_numeric_notation(StringView string);
static ErrorOr<FilePermissionsMask> from_symbolic_notation(StringView string);
FilePermissionsMask()
: m_clear_mask(0)
, m_write_mask(0)
{
}
FilePermissionsMask& assign_permissions(mode_t mode);
FilePermissionsMask& add_permissions(mode_t mode);
FilePermissionsMask& remove_permissions(mode_t mode);
mode_t apply(mode_t mode) const
{
if (m_directory_or_executable_mask && (S_ISDIR(mode) || (mode & 0111) != 0))
mode = m_directory_or_executable_mask->apply(mode);
return m_write_mask | (mode & ~m_clear_mask);
}
mode_t clear_mask() const { return m_clear_mask; }
mode_t write_mask() const { return m_write_mask; }
FilePermissionsMask& directory_or_executable_mask()
{
if (!m_directory_or_executable_mask)
m_directory_or_executable_mask = make<FilePermissionsMask>();
return *m_directory_or_executable_mask;
}
private:
mode_t m_clear_mask; // the bits that will be cleared
mode_t m_write_mask; // the bits that will be set
// A separate mask, only for files that already have some executable bit set or directories.
OwnPtr<FilePermissionsMask> m_directory_or_executable_mask;
};
}