1439 lines
47 KiB
C++
1439 lines
47 KiB
C++
// SPDX-License-Identifier: GPL-3.0-only
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/*
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* Prism Launcher - Minecraft Launcher
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* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
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* Copyright (C) 2022 TheKodeToad <TheKodeToad@proton.me>
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* Copyright (C) 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* This file incorporates work covered by the following copyright and
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* permission notice:
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*
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* Copyright 2013-2021 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "FileSystem.h"
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#include "BuildConfig.h"
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#include <QDebug>
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#include <QDir>
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#include <QDirIterator>
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#include <QFile>
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#include <QFileInfo>
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#include <QSaveFile>
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#include <QStandardPaths>
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#include <QStorageInfo>
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#include <QTextStream>
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#include <QUrl>
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#include <QtNetwork>
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#include <system_error>
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#include "DesktopServices.h"
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#include "StringUtils.h"
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#if defined Q_OS_WIN32
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#define NOMINMAX
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#define WIN32_LEAN_AND_MEAN
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#include <objbase.h>
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#include <objidl.h>
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#include <shlguid.h>
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#include <shlobj.h>
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#include <shobjidl.h>
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#include <sys/utime.h>
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#include <versionhelpers.h>
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#include <windows.h>
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#include <winnls.h>
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#include <string>
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// for ShellExecute
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#include <Shellapi.h>
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#include <objbase.h>
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#include <shlobj.h>
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#else
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#include <utime.h>
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#endif
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// Snippet from https://github.com/gulrak/filesystem#using-it-as-single-file-header
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#ifdef __APPLE__
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#include <Availability.h> // for deployment target to support pre-catalina targets without std::fs
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#endif // __APPLE__
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#if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || (defined(__cplusplus) && __cplusplus >= 201703L)) && defined(__has_include)
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#if __has_include(<filesystem>) && (!defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500)
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#define GHC_USE_STD_FS
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#include <filesystem>
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namespace fs = std::filesystem;
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#endif // MacOS min version check
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#endif // Other OSes version check
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#ifndef GHC_USE_STD_FS
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#include <ghc/filesystem.hpp>
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namespace fs = ghc::filesystem;
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#endif
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// clone
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#if defined(Q_OS_LINUX)
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#include <errno.h>
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#include <fcntl.h> /* Definition of FICLONE* constants */
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#include <linux/fs.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#elif defined(Q_OS_MACOS) || defined(Q_OS_FREEBSD) || defined(Q_OS_OPENBSD)
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#include <sys/attr.h>
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#include <sys/clonefile.h>
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#elif defined(Q_OS_WIN)
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// winbtrfs clone vs rundll32 shellbtrfs.dll,ReflinkCopy
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#include <fileapi.h>
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#include <stdio.h>
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#include <tchar.h>
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#include <windows.h>
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// refs
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#include <winioctl.h>
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#if defined(__MINGW32__)
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#include <crtdbg.h>
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#endif
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#endif
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#if defined(Q_OS_WIN)
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#if defined(__MINGW32__)
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typedef struct _DUPLICATE_EXTENTS_DATA {
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HANDLE FileHandle;
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LARGE_INTEGER SourceFileOffset;
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LARGE_INTEGER TargetFileOffset;
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LARGE_INTEGER ByteCount;
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} DUPLICATE_EXTENTS_DATA, *PDUPLICATE_EXTENTS_DATA;
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typedef struct _FSCTL_GET_INTEGRITY_INFORMATION_BUFFER {
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WORD ChecksumAlgorithm; // Checksum algorithm. e.g. CHECKSUM_TYPE_UNCHANGED, CHECKSUM_TYPE_NONE, CHECKSUM_TYPE_CRC32
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WORD Reserved; // Must be 0
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DWORD Flags; // FSCTL_INTEGRITY_FLAG_xxx
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DWORD ChecksumChunkSizeInBytes;
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DWORD ClusterSizeInBytes;
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} FSCTL_GET_INTEGRITY_INFORMATION_BUFFER, *PFSCTL_GET_INTEGRITY_INFORMATION_BUFFER;
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typedef struct _FSCTL_SET_INTEGRITY_INFORMATION_BUFFER {
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WORD ChecksumAlgorithm; // Checksum algorithm. e.g. CHECKSUM_TYPE_UNCHANGED, CHECKSUM_TYPE_NONE, CHECKSUM_TYPE_CRC32
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WORD Reserved; // Must be 0
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DWORD Flags; // FSCTL_INTEGRITY_FLAG_xxx
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} FSCTL_SET_INTEGRITY_INFORMATION_BUFFER, *PFSCTL_SET_INTEGRITY_INFORMATION_BUFFER;
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#endif
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#ifndef FSCTL_DUPLICATE_EXTENTS_TO_FILE
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#define FSCTL_DUPLICATE_EXTENTS_TO_FILE CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 209, METHOD_BUFFERED, FILE_WRITE_DATA)
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#endif
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#ifndef FSCTL_GET_INTEGRITY_INFORMATION
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#define FSCTL_GET_INTEGRITY_INFORMATION \
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CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 159, METHOD_BUFFERED, FILE_ANY_ACCESS) // FSCTL_GET_INTEGRITY_INFORMATION_BUFFER
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#endif
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#ifndef FSCTL_SET_INTEGRITY_INFORMATION
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#define FSCTL_SET_INTEGRITY_INFORMATION \
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CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 160, METHOD_BUFFERED, FILE_READ_DATA | FILE_WRITE_DATA) // FSCTL_SET_INTEGRITY_INFORMATION_BUFFER
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#endif
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#ifndef ERROR_NOT_CAPABLE
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#define ERROR_NOT_CAPABLE 775L
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#endif
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#ifndef ERROR_BLOCK_TOO_MANY_REFERENCES
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#define ERROR_BLOCK_TOO_MANY_REFERENCES 347L
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#endif
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#endif
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namespace FS {
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void ensureExists(const QDir& dir)
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{
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if (!QDir().mkpath(dir.absolutePath())) {
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throw FileSystemException("Unable to create folder " + dir.dirName() + " (" + dir.absolutePath() + ")");
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}
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}
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void write(const QString& filename, const QByteArray& data)
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{
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ensureExists(QFileInfo(filename).dir());
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QSaveFile file(filename);
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if (!file.open(QSaveFile::WriteOnly)) {
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throw FileSystemException("Couldn't open " + filename + " for writing: " + file.errorString());
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}
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if (data.size() != file.write(data)) {
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throw FileSystemException("Error writing data to " + filename + ": " + file.errorString());
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}
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if (!file.commit()) {
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throw FileSystemException("Error while committing data to " + filename + ": " + file.errorString());
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}
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}
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QByteArray read(const QString& filename)
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{
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QFile file(filename);
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if (!file.open(QFile::ReadOnly)) {
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throw FileSystemException("Unable to open " + filename + " for reading: " + file.errorString());
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}
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const qint64 size = file.size();
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QByteArray data(int(size), 0);
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const qint64 ret = file.read(data.data(), size);
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if (ret == -1 || ret != size) {
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throw FileSystemException("Error reading data from " + filename + ": " + file.errorString());
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}
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return data;
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}
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bool updateTimestamp(const QString& filename)
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{
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#ifdef Q_OS_WIN32
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std::wstring filename_utf_16 = filename.toStdWString();
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return (_wutime64(filename_utf_16.c_str(), nullptr) == 0);
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#else
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QByteArray filenameBA = QFile::encodeName(filename);
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return (utime(filenameBA.data(), nullptr) == 0);
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#endif
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}
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bool ensureFilePathExists(QString filenamepath)
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{
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QFileInfo a(filenamepath);
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QDir dir;
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QString ensuredPath = a.path();
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bool success = dir.mkpath(ensuredPath);
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return success;
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}
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bool ensureFolderPathExists(QString foldernamepath)
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{
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QFileInfo a(foldernamepath);
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QDir dir;
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QString ensuredPath = a.filePath();
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bool success = dir.mkpath(ensuredPath);
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return success;
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}
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/**
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* @brief Copies a directory and it's contents from src to dest
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* @param offset subdirectory form src to copy to dest
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* @return if there was an error during the filecopy
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*/
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bool copy::operator()(const QString& offset, bool dryRun)
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{
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using copy_opts = fs::copy_options;
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m_copied = 0; // reset counter
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// NOTE always deep copy on windows. the alternatives are too messy.
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#if defined Q_OS_WIN32
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m_followSymlinks = true;
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#endif
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auto src = PathCombine(m_src.absolutePath(), offset);
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auto dst = PathCombine(m_dst.absolutePath(), offset);
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std::error_code err;
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fs::copy_options opt = copy_opts::none;
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// The default behavior is to follow symlinks
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if (!m_followSymlinks)
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opt |= copy_opts::copy_symlinks;
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// Function that'll do the actual copying
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auto copy_file = [&](QString src_path, QString relative_dst_path) {
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if (m_matcher && (m_matcher->matches(relative_dst_path) != m_whitelist))
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return;
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auto dst_path = PathCombine(dst, relative_dst_path);
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if (!dryRun) {
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ensureFilePathExists(dst_path);
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fs::copy(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), opt, err);
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}
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if (err) {
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qWarning() << "Failed to copy files:" << QString::fromStdString(err.message());
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qDebug() << "Source file:" << src_path;
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qDebug() << "Destination file:" << dst_path;
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}
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m_copied++;
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emit fileCopied(relative_dst_path);
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};
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// We can't use copy_opts::recursive because we need to take into account the
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// blacklisted paths, so we iterate over the source directory, and if there's no blacklist
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// match, we copy the file.
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QDir src_dir(src);
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QDirIterator source_it(src, QDir::Filter::Files | QDir::Filter::Hidden, QDirIterator::Subdirectories);
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while (source_it.hasNext()) {
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auto src_path = source_it.next();
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auto relative_path = src_dir.relativeFilePath(src_path);
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copy_file(src_path, relative_path);
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}
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// If the root src is not a directory, the previous iterator won't run.
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if (!fs::is_directory(StringUtils::toStdString(src)))
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copy_file(src, "");
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return err.value() == 0;
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}
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/// qDebug print support for the LinkPair struct
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QDebug operator<<(QDebug debug, const LinkPair& lp)
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{
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QDebugStateSaver saver(debug);
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debug.nospace() << "LinkPair{ src: " << lp.src << " , dst: " << lp.dst << " }";
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return debug;
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}
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bool create_link::operator()(const QString& offset, bool dryRun)
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{
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m_linked = 0; // reset counter
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m_path_results.clear();
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m_links_to_make.clear();
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m_path_results.clear();
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make_link_list(offset);
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if (!dryRun)
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return make_links();
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return true;
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}
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/**
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* @brief Make a list of all the links to make
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* @param offset subdirectory of src to link to dest
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*/
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void create_link::make_link_list(const QString& offset)
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{
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for (auto pair : m_path_pairs) {
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const QString& srcPath = pair.src;
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const QString& dstPath = pair.dst;
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auto src = PathCombine(QDir(srcPath).absolutePath(), offset);
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auto dst = PathCombine(QDir(dstPath).absolutePath(), offset);
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// you can't hard link a directory so make sure if we deal with a directory we do so recursively
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if (m_useHardLinks)
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m_recursive = true;
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// Function that'll do the actual linking
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auto link_file = [&](QString src_path, QString relative_dst_path) {
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if (m_matcher && (m_matcher->matches(relative_dst_path) != m_whitelist)) {
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qDebug() << "path" << relative_dst_path << "in black list or not in whitelist";
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return;
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}
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auto dst_path = PathCombine(dst, relative_dst_path);
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LinkPair link = { src_path, dst_path };
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m_links_to_make.append(link);
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};
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if ((!m_recursive) || !fs::is_directory(StringUtils::toStdString(src))) {
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if (m_debug)
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qDebug() << "linking single file or dir:" << src << "to" << dst;
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link_file(src, "");
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} else {
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if (m_debug)
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qDebug() << "linking recursively:" << src << "to" << dst << ", max_depth:" << m_max_depth;
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QDir src_dir(src);
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QDirIterator source_it(src, QDir::Filter::Files | QDir::Filter::Hidden, QDirIterator::Subdirectories);
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QStringList linkedPaths;
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while (source_it.hasNext()) {
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auto src_path = source_it.next();
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auto relative_path = src_dir.relativeFilePath(src_path);
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if (m_max_depth >= 0 && pathDepth(relative_path) > m_max_depth){
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relative_path = pathTruncate(relative_path, m_max_depth);
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src_path = src_dir.filePath(relative_path);
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if (linkedPaths.contains(src_path)) {
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continue;
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}
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}
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linkedPaths.append(src_path);
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link_file(src_path, relative_path);
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}
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}
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}
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}
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bool create_link::make_links()
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{
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for (auto link : m_links_to_make) {
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QString src_path = link.src;
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QString dst_path = link.dst;
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auto src_path_std = StringUtils::toStdString(link.src);
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auto dst_path_std = StringUtils::toStdString(link.dst);
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ensureFilePathExists(dst_path);
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if (m_useHardLinks) {
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if (m_debug)
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qDebug() << "making hard link:" << src_path << "to" << dst_path;
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fs::create_hard_link(src_path_std, dst_path_std, m_os_err);
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} else if (fs::is_directory(src_path_std)) {
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if (m_debug)
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qDebug() << "making directory_symlink:" << src_path << "to" << dst_path;
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fs::create_directory_symlink(src_path_std, dst_path_std, m_os_err);
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} else {
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if (m_debug)
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qDebug() << "making symlink:" << src_path << "to" << dst_path;
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fs::create_symlink(src_path_std, dst_path_std, m_os_err);
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}
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if (m_os_err) {
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qWarning() << "Failed to link files:" << QString::fromStdString(m_os_err.message());
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qDebug() << "Source file:" << src_path;
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qDebug() << "Destination file:" << dst_path;
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qDebug() << "Error category:" << m_os_err.category().name();
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qDebug() << "Error code:" << m_os_err.value();
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emit linkFailed(src_path, dst_path, QString::fromStdString(m_os_err.message()), m_os_err.value());
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} else {
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m_linked++;
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emit fileLinked(src_path, dst_path);
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}
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if (m_os_err)
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return false;
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}
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return true;
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}
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void create_link::runPrivileged(const QString& offset)
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{
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m_linked = 0; // reset counter
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m_path_results.clear();
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m_links_to_make.clear();
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bool gotResults = false;
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make_link_list(offset);
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QString serverName = BuildConfig.LAUNCHER_APP_BINARY_NAME + "_filelink_server" + StringUtils::getRandomAlphaNumeric();
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connect(&m_linkServer, &QLocalServer::newConnection, this, [&]() {
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qDebug() << "Client connected, sending out pairs";
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// construct block of data to send
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QByteArray block;
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QDataStream out(&block, QIODevice::WriteOnly);
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qint32 blocksize = quint32(sizeof(quint32));
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for (auto link : m_links_to_make) {
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blocksize += quint32(link.src.size());
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blocksize += quint32(link.dst.size());
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}
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qDebug() << "About to write block of size:" << blocksize;
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out << blocksize;
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out << quint32(m_links_to_make.length());
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for (auto link : m_links_to_make) {
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out << link.src;
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out << link.dst;
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}
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QLocalSocket* clientConnection = m_linkServer.nextPendingConnection();
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connect(clientConnection, &QLocalSocket::disconnected, clientConnection, &QLocalSocket::deleteLater);
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connect(clientConnection, &QLocalSocket::readyRead, this, [&, clientConnection]() {
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QDataStream in;
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quint32 blockSize = 0;
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in.setDevice(clientConnection);
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qDebug() << "Reading path results from client";
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qDebug() << "bytes available" << clientConnection->bytesAvailable();
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// Relies on the fact that QDataStream serializes a quint32 into
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// sizeof(quint32) bytes
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if (clientConnection->bytesAvailable() < (int)sizeof(quint32))
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return;
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qDebug() << "reading block size";
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in >> blockSize;
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qDebug() << "blocksize is" << blockSize;
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qDebug() << "bytes available" << clientConnection->bytesAvailable();
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if (clientConnection->bytesAvailable() < blockSize || in.atEnd())
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return;
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quint32 numResults;
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in >> numResults;
|
|
qDebug() << "numResults" << numResults;
|
|
|
|
for (quint32 i = 0; i < numResults; i++) {
|
|
FS::LinkResult result;
|
|
in >> result.src;
|
|
in >> result.dst;
|
|
in >> result.err_msg;
|
|
qint32 err_value;
|
|
in >> err_value;
|
|
result.err_value = err_value;
|
|
if (result.err_value) {
|
|
qDebug() << "privileged link fail" << result.src << "to" << result.dst << "code" << result.err_value << result.err_msg;
|
|
emit linkFailed(result.src, result.dst, result.err_msg, result.err_value);
|
|
} else {
|
|
qDebug() << "privileged link success" << result.src << "to" << result.dst;
|
|
m_linked++;
|
|
emit fileLinked(result.src, result.dst);
|
|
}
|
|
m_path_results.append(result);
|
|
}
|
|
gotResults = true;
|
|
qDebug() << "results received, closing connection";
|
|
clientConnection->close();
|
|
});
|
|
|
|
qint64 byteswritten = clientConnection->write(block);
|
|
bool bytesflushed = clientConnection->flush();
|
|
qDebug() << "block flushed" << byteswritten << bytesflushed;
|
|
});
|
|
|
|
qDebug() << "Listening on pipe" << serverName;
|
|
if (!m_linkServer.listen(serverName)) {
|
|
qDebug() << "Unable to start local pipe server on" << serverName << ":" << m_linkServer.errorString();
|
|
return;
|
|
}
|
|
|
|
ExternalLinkFileProcess* linkFileProcess = new ExternalLinkFileProcess(serverName, m_useHardLinks, this);
|
|
connect(linkFileProcess, &ExternalLinkFileProcess::processExited, this, [&]() { emit finishedPrivileged(gotResults); });
|
|
connect(linkFileProcess, &ExternalLinkFileProcess::finished, linkFileProcess, &QObject::deleteLater);
|
|
|
|
linkFileProcess->start();
|
|
}
|
|
|
|
void ExternalLinkFileProcess::runLinkFile()
|
|
{
|
|
QString fileLinkExe =
|
|
PathCombine(QCoreApplication::instance()->applicationDirPath(), BuildConfig.LAUNCHER_APP_BINARY_NAME + "_filelink");
|
|
QString params = "-s " + m_server;
|
|
|
|
params += " -H " + QVariant(m_useHardLinks).toString();
|
|
|
|
#if defined Q_OS_WIN32
|
|
SHELLEXECUTEINFO ShExecInfo;
|
|
|
|
fileLinkExe = fileLinkExe + ".exe";
|
|
|
|
qDebug() << "Running: runas" << fileLinkExe << params;
|
|
|
|
LPCWSTR programNameWin = (const wchar_t*)fileLinkExe.utf16();
|
|
LPCWSTR paramsWin = (const wchar_t*)params.utf16();
|
|
|
|
// https://learn.microsoft.com/en-us/windows/win32/api/shellapi/ns-shellapi-shellexecuteinfoa
|
|
ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
|
|
ShExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
|
|
ShExecInfo.hwnd = NULL; // Optional. A handle to the owner window, used to display and position any UI that the system might produce
|
|
// while executing this function.
|
|
ShExecInfo.lpVerb = L"runas"; // elevate to admin, show UAC
|
|
ShExecInfo.lpFile = programNameWin;
|
|
ShExecInfo.lpParameters = paramsWin;
|
|
ShExecInfo.lpDirectory = NULL;
|
|
ShExecInfo.nShow = SW_HIDE;
|
|
ShExecInfo.hInstApp = NULL;
|
|
|
|
ShellExecuteEx(&ShExecInfo);
|
|
|
|
WaitForSingleObject(ShExecInfo.hProcess, INFINITE);
|
|
CloseHandle(ShExecInfo.hProcess);
|
|
#endif
|
|
|
|
qDebug() << "Process exited";
|
|
}
|
|
|
|
bool move(const QString& source, const QString& dest)
|
|
{
|
|
std::error_code err;
|
|
|
|
ensureFilePathExists(dest);
|
|
fs::rename(StringUtils::toStdString(source), StringUtils::toStdString(dest), err);
|
|
|
|
if (err) {
|
|
qWarning() << "Failed to move file:" << QString::fromStdString(err.message());
|
|
qDebug() << "Source file:" << source;
|
|
qDebug() << "Destination file:" << dest;
|
|
}
|
|
|
|
return err.value() == 0;
|
|
}
|
|
|
|
bool deletePath(QString path)
|
|
{
|
|
std::error_code err;
|
|
|
|
fs::remove_all(StringUtils::toStdString(path), err);
|
|
|
|
if (err) {
|
|
qWarning() << "Failed to remove files:" << QString::fromStdString(err.message());
|
|
}
|
|
|
|
return err.value() == 0;
|
|
}
|
|
|
|
bool trash(QString path, QString* pathInTrash)
|
|
{
|
|
#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
|
|
return false;
|
|
#else
|
|
// FIXME: Figure out trash in Flatpak. Qt seemingly doesn't use the Trash portal
|
|
if (DesktopServices::isFlatpak())
|
|
return false;
|
|
#if defined Q_OS_WIN32
|
|
if (IsWindowsServer())
|
|
return false;
|
|
#endif
|
|
return QFile::moveToTrash(path, pathInTrash);
|
|
#endif
|
|
}
|
|
|
|
QString PathCombine(const QString& path1, const QString& path2)
|
|
{
|
|
if (!path1.size())
|
|
return path2;
|
|
if (!path2.size())
|
|
return path1;
|
|
return QDir::cleanPath(path1 + QDir::separator() + path2);
|
|
}
|
|
|
|
QString PathCombine(const QString& path1, const QString& path2, const QString& path3)
|
|
{
|
|
return PathCombine(PathCombine(path1, path2), path3);
|
|
}
|
|
|
|
QString PathCombine(const QString& path1, const QString& path2, const QString& path3, const QString& path4)
|
|
{
|
|
return PathCombine(PathCombine(path1, path2, path3), path4);
|
|
}
|
|
|
|
QString AbsolutePath(const QString& path)
|
|
{
|
|
return QFileInfo(path).absolutePath();
|
|
}
|
|
|
|
int pathDepth(const QString& path)
|
|
{
|
|
if (path.isEmpty())
|
|
return 0;
|
|
|
|
QFileInfo info(path);
|
|
|
|
#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
|
|
auto parts = QDir::toNativeSeparators(info.path()).split(QDir::separator(), QString::SkipEmptyParts);
|
|
#else
|
|
auto parts = QDir::toNativeSeparators(info.path()).split(QDir::separator(), Qt::SkipEmptyParts);
|
|
#endif
|
|
|
|
int numParts = parts.length();
|
|
numParts -= parts.count(".");
|
|
numParts -= parts.count("..") * 2;
|
|
|
|
return numParts;
|
|
}
|
|
|
|
QString pathTruncate(const QString& path, int depth)
|
|
{
|
|
if (path.isEmpty() || (depth < 0))
|
|
return "";
|
|
|
|
QString trunc = QFileInfo(path).path();
|
|
|
|
if (pathDepth(trunc) > depth ) {
|
|
return pathTruncate(trunc, depth);
|
|
}
|
|
|
|
#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
|
|
auto parts = QDir::toNativeSeparators(trunc).split(QDir::separator(), QString::SkipEmptyParts);
|
|
#else
|
|
auto parts = QDir::toNativeSeparators(trunc).split(QDir::separator(), Qt::SkipEmptyParts);
|
|
#endif
|
|
|
|
if (parts.startsWith(".") && !path.startsWith(".")) {
|
|
parts.removeFirst();
|
|
}
|
|
if (QDir::toNativeSeparators(path).startsWith(QDir::separator())) {
|
|
parts.prepend("");
|
|
}
|
|
|
|
trunc = parts.join(QDir::separator());
|
|
|
|
return trunc;
|
|
}
|
|
|
|
QString ResolveExecutable(QString path)
|
|
{
|
|
if (path.isEmpty()) {
|
|
return QString();
|
|
}
|
|
if (!path.contains('/')) {
|
|
path = QStandardPaths::findExecutable(path);
|
|
}
|
|
QFileInfo pathInfo(path);
|
|
if (!pathInfo.exists() || !pathInfo.isExecutable()) {
|
|
return QString();
|
|
}
|
|
return pathInfo.absoluteFilePath();
|
|
}
|
|
|
|
/**
|
|
* Normalize path
|
|
*
|
|
* Any paths inside the current folder will be normalized to relative paths (to current)
|
|
* Other paths will be made absolute
|
|
*/
|
|
QString NormalizePath(QString path)
|
|
{
|
|
QDir a = QDir::currentPath();
|
|
QString currentAbsolute = a.absolutePath();
|
|
|
|
QDir b(path);
|
|
QString newAbsolute = b.absolutePath();
|
|
|
|
if (newAbsolute.startsWith(currentAbsolute)) {
|
|
return a.relativeFilePath(newAbsolute);
|
|
} else {
|
|
return newAbsolute;
|
|
}
|
|
}
|
|
|
|
QString badFilenameChars = "\"\\/?<>:;*|!+\r\n";
|
|
|
|
QString RemoveInvalidFilenameChars(QString string, QChar replaceWith)
|
|
{
|
|
for (int i = 0; i < string.length(); i++) {
|
|
if (badFilenameChars.contains(string[i])) {
|
|
string[i] = replaceWith;
|
|
}
|
|
}
|
|
return string;
|
|
}
|
|
|
|
QString DirNameFromString(QString string, QString inDir)
|
|
{
|
|
int num = 0;
|
|
QString baseName = RemoveInvalidFilenameChars(string, '-');
|
|
QString dirName;
|
|
do {
|
|
if (num == 0) {
|
|
dirName = baseName;
|
|
} else {
|
|
dirName = baseName + "(" + QString::number(num) + ")";
|
|
}
|
|
|
|
// If it's over 9000
|
|
if (num > 9000)
|
|
return "";
|
|
num++;
|
|
} while (QFileInfo(PathCombine(inDir, dirName)).exists());
|
|
return dirName;
|
|
}
|
|
|
|
// Does the folder path contain any '!'? If yes, return true, otherwise false.
|
|
// (This is a problem for Java)
|
|
bool checkProblemticPathJava(QDir folder)
|
|
{
|
|
QString pathfoldername = folder.absolutePath();
|
|
return pathfoldername.contains("!", Qt::CaseInsensitive);
|
|
}
|
|
|
|
QString getDesktopDir()
|
|
{
|
|
return QStandardPaths::writableLocation(QStandardPaths::DesktopLocation);
|
|
}
|
|
|
|
// Cross-platform Shortcut creation
|
|
bool createShortcut(QString destination, QString target, QStringList args, QString name, QString icon)
|
|
{
|
|
#if defined(Q_OS_MACOS)
|
|
destination += ".command";
|
|
|
|
QFile f(destination);
|
|
f.open(QIODevice::WriteOnly | QIODevice::Text);
|
|
QTextStream stream(&f);
|
|
|
|
QString argstring;
|
|
if (!args.empty())
|
|
argstring = " \"" + args.join("\" \"") + "\"";
|
|
|
|
stream << "#!/bin/bash"
|
|
<< "\n";
|
|
stream << "\"" << target << "\" " << argstring << "\n";
|
|
|
|
stream.flush();
|
|
f.close();
|
|
|
|
f.setPermissions(f.permissions() | QFileDevice::ExeOwner | QFileDevice::ExeGroup | QFileDevice::ExeOther);
|
|
|
|
return true;
|
|
#elif defined(Q_OS_LINUX) || defined(Q_OS_FREEBSD) || defined(Q_OS_OPENBSD)
|
|
QFile f(destination);
|
|
f.open(QIODevice::WriteOnly | QIODevice::Text);
|
|
QTextStream stream(&f);
|
|
|
|
QString argstring;
|
|
if (!args.empty())
|
|
argstring = " '" + args.join("' '") + "'";
|
|
|
|
stream << "[Desktop Entry]"
|
|
<< "\n";
|
|
stream << "Type=Application"
|
|
<< "\n";
|
|
stream << "Exec=\"" << target.toLocal8Bit() << "\"" << argstring.toLocal8Bit() << "\n";
|
|
stream << "Name=" << name.toLocal8Bit() << "\n";
|
|
if (!icon.isEmpty()) {
|
|
stream << "Icon=" << icon.toLocal8Bit() << "\n";
|
|
}
|
|
|
|
stream.flush();
|
|
f.close();
|
|
|
|
f.setPermissions(f.permissions() | QFileDevice::ExeOwner | QFileDevice::ExeGroup | QFileDevice::ExeOther);
|
|
|
|
return true;
|
|
#elif defined(Q_OS_WIN)
|
|
QFileInfo targetInfo(target);
|
|
|
|
if (!targetInfo.exists()) {
|
|
qWarning() << "Target file does not exist!";
|
|
return false;
|
|
}
|
|
|
|
target = targetInfo.absoluteFilePath();
|
|
|
|
if (target.length() >= MAX_PATH) {
|
|
qWarning() << "Target file path is too long!";
|
|
return false;
|
|
}
|
|
|
|
if (!icon.isEmpty() && icon.length() >= MAX_PATH) {
|
|
qWarning() << "Icon path is too long!";
|
|
return false;
|
|
}
|
|
|
|
destination += ".lnk";
|
|
|
|
if (destination.length() >= MAX_PATH) {
|
|
qWarning() << "Destination path is too long!";
|
|
return false;
|
|
}
|
|
|
|
QString argStr;
|
|
int argCount = args.count();
|
|
for (int i = 0; i < argCount; i++) {
|
|
if (args[i].contains(' ')) {
|
|
argStr.append('"').append(args[i]).append('"');
|
|
} else {
|
|
argStr.append(args[i]);
|
|
}
|
|
|
|
if (i < argCount - 1) {
|
|
argStr.append(" ");
|
|
}
|
|
}
|
|
|
|
if (argStr.length() >= MAX_PATH) {
|
|
qWarning() << "Arguments string is too long!";
|
|
return false;
|
|
}
|
|
|
|
HRESULT hres;
|
|
|
|
// ...yes, you need to initialize the entire COM stack just to make a shortcut
|
|
hres = CoInitialize(nullptr);
|
|
if (FAILED(hres)) {
|
|
qWarning() << "Failed to initialize COM!";
|
|
return false;
|
|
}
|
|
|
|
WCHAR wsz[MAX_PATH];
|
|
|
|
IShellLink* psl;
|
|
|
|
// create an IShellLink instance - this stores the shortcut's attributes
|
|
hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (LPVOID*)&psl);
|
|
if (SUCCEEDED(hres)) {
|
|
wmemset(wsz, 0, MAX_PATH);
|
|
target.toWCharArray(wsz);
|
|
psl->SetPath(wsz);
|
|
|
|
wmemset(wsz, 0, MAX_PATH);
|
|
argStr.toWCharArray(wsz);
|
|
psl->SetArguments(wsz);
|
|
|
|
wmemset(wsz, 0, MAX_PATH);
|
|
targetInfo.absolutePath().toWCharArray(wsz);
|
|
psl->SetWorkingDirectory(wsz); // "Starts in" attribute
|
|
|
|
if (!icon.isEmpty()) {
|
|
wmemset(wsz, 0, MAX_PATH);
|
|
icon.toWCharArray(wsz);
|
|
psl->SetIconLocation(wsz, 0);
|
|
}
|
|
|
|
// query an IPersistFile interface from our IShellLink instance
|
|
// this is the interface that will actually let us save the shortcut to disk!
|
|
IPersistFile* ppf;
|
|
hres = psl->QueryInterface(IID_IPersistFile, (LPVOID*)&ppf);
|
|
if (SUCCEEDED(hres)) {
|
|
wmemset(wsz, 0, MAX_PATH);
|
|
destination.toWCharArray(wsz);
|
|
hres = ppf->Save(wsz, TRUE);
|
|
if (FAILED(hres)) {
|
|
qWarning() << "IPresistFile->Save() failed";
|
|
qWarning() << "hres = " << hres;
|
|
}
|
|
ppf->Release();
|
|
} else {
|
|
qWarning() << "Failed to query IPersistFile interface from IShellLink instance";
|
|
qWarning() << "hres = " << hres;
|
|
}
|
|
psl->Release();
|
|
} else {
|
|
qWarning() << "Failed to create IShellLink instance";
|
|
qWarning() << "hres = " << hres;
|
|
}
|
|
|
|
// go away COM, nobody likes you
|
|
CoUninitialize();
|
|
|
|
return SUCCEEDED(hres);
|
|
#else
|
|
qWarning("Desktop Shortcuts not supported on your platform!");
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
bool overrideFolder(QString overwritten_path, QString override_path)
|
|
{
|
|
using copy_opts = fs::copy_options;
|
|
|
|
if (!FS::ensureFolderPathExists(overwritten_path))
|
|
return false;
|
|
|
|
std::error_code err;
|
|
fs::copy_options opt = copy_opts::recursive | copy_opts::overwrite_existing;
|
|
|
|
// FIXME: hello traveller! Apparently std::copy does NOT overwrite existing files on GNU libstdc++ on Windows?
|
|
fs::copy(StringUtils::toStdString(override_path), StringUtils::toStdString(overwritten_path), opt, err);
|
|
|
|
if (err) {
|
|
qCritical() << QString("Failed to apply override from %1 to %2").arg(override_path, overwritten_path);
|
|
qCritical() << "Reason:" << QString::fromStdString(err.message());
|
|
}
|
|
|
|
return err.value() == 0;
|
|
}
|
|
|
|
QString getFilesystemTypeName(FilesystemType type)
|
|
{
|
|
auto iter = s_filesystem_type_names.constFind(type);
|
|
if (iter != s_filesystem_type_names.constEnd()) {
|
|
return iter.value().constFirst();
|
|
}
|
|
return getFilesystemTypeName(FilesystemType::UNKNOWN);
|
|
}
|
|
|
|
FilesystemType getFilesystemTypeFuzzy(const QString& name)
|
|
{
|
|
for (auto iter = s_filesystem_type_names.constBegin(); iter != s_filesystem_type_names.constEnd(); ++iter) {
|
|
auto fs_names = iter.value();
|
|
for (auto fs_name : fs_names) {
|
|
if (name.toUpper().contains(fs_name.toUpper()))
|
|
return iter.key();
|
|
}
|
|
}
|
|
return FilesystemType::UNKNOWN;
|
|
}
|
|
|
|
FilesystemType getFilesystemType(const QString& name)
|
|
{
|
|
for (auto iter = s_filesystem_type_names.constBegin(); iter != s_filesystem_type_names.constEnd(); ++iter) {
|
|
auto fs_names = iter.value();
|
|
if(fs_names.contains(name.toUpper()))
|
|
return iter.key();
|
|
}
|
|
return FilesystemType::UNKNOWN;
|
|
}
|
|
|
|
/**
|
|
* @brief path to the near ancestor that exists
|
|
*
|
|
*/
|
|
QString nearestExistentAncestor(const QString& path)
|
|
{
|
|
if (QFileInfo::exists(path))
|
|
return path;
|
|
|
|
QDir dir(path);
|
|
if (!dir.makeAbsolute())
|
|
return {};
|
|
do {
|
|
dir.setPath(QDir::cleanPath(dir.filePath(QStringLiteral(".."))));
|
|
} while (!dir.exists() && !dir.isRoot());
|
|
|
|
return dir.exists() ? dir.path() : QString();
|
|
}
|
|
|
|
/**
|
|
* @brief colect information about the filesystem under a file
|
|
*
|
|
*/
|
|
FilesystemInfo statFS(const QString& path)
|
|
{
|
|
FilesystemInfo info;
|
|
|
|
QStorageInfo storage_info(nearestExistentAncestor(path));
|
|
|
|
info.fsTypeName = storage_info.fileSystemType();
|
|
|
|
info.fsType = getFilesystemTypeFuzzy(info.fsTypeName);
|
|
|
|
info.blockSize = storage_info.blockSize();
|
|
info.bytesAvailable = storage_info.bytesAvailable();
|
|
info.bytesFree = storage_info.bytesFree();
|
|
info.bytesTotal = storage_info.bytesTotal();
|
|
|
|
info.name = storage_info.name();
|
|
info.rootPath = storage_info.rootPath();
|
|
|
|
return info;
|
|
}
|
|
|
|
/**
|
|
* @brief if the Filesystem is reflink/clone capable
|
|
*
|
|
*/
|
|
bool canCloneOnFS(const QString& path)
|
|
{
|
|
FilesystemInfo info = statFS(path);
|
|
return canCloneOnFS(info);
|
|
}
|
|
bool canCloneOnFS(const FilesystemInfo& info)
|
|
{
|
|
return canCloneOnFS(info.fsType);
|
|
}
|
|
bool canCloneOnFS(FilesystemType type)
|
|
{
|
|
return s_clone_filesystems.contains(type);
|
|
}
|
|
|
|
/**
|
|
* @brief if the Filesystem is reflink/clone capable and both paths are on the same device
|
|
*
|
|
*/
|
|
bool canClone(const QString& src, const QString& dst)
|
|
{
|
|
auto srcVInfo = statFS(src);
|
|
auto dstVInfo = statFS(dst);
|
|
|
|
bool sameDevice = srcVInfo.rootPath == dstVInfo.rootPath;
|
|
|
|
return sameDevice && canCloneOnFS(srcVInfo) && canCloneOnFS(dstVInfo);
|
|
}
|
|
|
|
/**
|
|
* @brief reflink/clones a directory and it's contents from src to dest
|
|
* @param offset subdirectory form src to copy to dest
|
|
* @return if there was an error during the filecopy
|
|
*/
|
|
bool clone::operator()(const QString& offset, bool dryRun)
|
|
{
|
|
if (!canClone(m_src.absolutePath(), m_dst.absolutePath())) {
|
|
qWarning() << "Can not clone: not same device or not clone/reflink filesystem";
|
|
qDebug() << "Source path:" << m_src.absolutePath();
|
|
qDebug() << "Destination path:" << m_dst.absolutePath();
|
|
emit cloneFailed(m_src.absolutePath(), m_dst.absolutePath());
|
|
return false;
|
|
}
|
|
|
|
m_cloned = 0; // reset counter
|
|
|
|
auto src = PathCombine(m_src.absolutePath(), offset);
|
|
auto dst = PathCombine(m_dst.absolutePath(), offset);
|
|
|
|
std::error_code err;
|
|
|
|
// Function that'll do the actual cloneing
|
|
auto cloneFile = [&](QString src_path, QString relative_dst_path) {
|
|
if (m_matcher && (m_matcher->matches(relative_dst_path) != m_whitelist))
|
|
return;
|
|
|
|
auto dst_path = PathCombine(dst, relative_dst_path);
|
|
if (!dryRun) {
|
|
ensureFilePathExists(dst_path);
|
|
clone_file(src_path, dst_path, err);
|
|
}
|
|
if (err) {
|
|
qDebug() << "Failed to clone files: error" << err.value() << "message" << QString::fromStdString(err.message());
|
|
qDebug() << "Source file:" << src_path;
|
|
qDebug() << "Destination file:" << dst_path;
|
|
}
|
|
m_cloned++;
|
|
emit fileCloned(src_path, dst_path);
|
|
};
|
|
|
|
// We can't use copy_opts::recursive because we need to take into account the
|
|
// blacklisted paths, so we iterate over the source directory, and if there's no blacklist
|
|
// match, we copy the file.
|
|
QDir src_dir(src);
|
|
QDirIterator source_it(src, QDir::Filter::Files | QDir::Filter::Hidden, QDirIterator::Subdirectories);
|
|
|
|
while (source_it.hasNext()) {
|
|
auto src_path = source_it.next();
|
|
auto relative_path = src_dir.relativeFilePath(src_path);
|
|
|
|
cloneFile(src_path, relative_path);
|
|
}
|
|
|
|
// If the root src is not a directory, the previous iterator won't run.
|
|
if (!fs::is_directory(StringUtils::toStdString(src)))
|
|
cloneFile(src, "");
|
|
|
|
return err.value() == 0;
|
|
}
|
|
|
|
/**
|
|
* @brief clone/reflink file from src to dst
|
|
*
|
|
*/
|
|
bool clone_file(const QString& src, const QString& dst, std::error_code& ec)
|
|
{
|
|
auto src_path = StringUtils::toStdString(QDir::toNativeSeparators(QFileInfo(src).absoluteFilePath()));
|
|
auto dst_path = StringUtils::toStdString(QDir::toNativeSeparators(QFileInfo(dst).absoluteFilePath()));
|
|
|
|
FilesystemInfo srcinfo = statFS(src);
|
|
FilesystemInfo dstinfo = statFS(dst);
|
|
|
|
if ((srcinfo.rootPath != dstinfo.rootPath) || (srcinfo.fsType != dstinfo.fsType)) {
|
|
ec = std::make_error_code(std::errc::not_supported);
|
|
qWarning() << "reflink/clone must be to the same device and filesystem! src and dst root filesystems do not match.";
|
|
return false;
|
|
}
|
|
|
|
#if defined(Q_OS_WIN)
|
|
|
|
if (!win_ioctl_clone(src_path, dst_path, ec)) {
|
|
qDebug() << "failed win_ioctl_clone";
|
|
qWarning() << "clone/reflink not supported on windows outside of btrfs or ReFS!";
|
|
qWarning() << "check out https://github.com/maharmstone/btrfs for btrfs support!";
|
|
return false;
|
|
}
|
|
|
|
#elif defined(Q_OS_LINUX)
|
|
|
|
if (!linux_ficlone(src_path, dst_path, ec)) {
|
|
qDebug() << "failed linux_ficlone:";
|
|
return false;
|
|
}
|
|
|
|
#elif defined(Q_OS_MACOS) || defined(Q_OS_FREEBSD) || defined(Q_OS_OPENBSD)
|
|
|
|
if (!macos_bsd_clonefile(src_path, dst_path, ec)) {
|
|
qDebug() << "failed macos_bsd_clonefile:";
|
|
return false;
|
|
}
|
|
|
|
#else
|
|
|
|
qWarning() << "clone/reflink not supported! unknown OS";
|
|
ec = std::make_error_code(std::errc::not_supported);
|
|
return false;
|
|
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
#if defined(Q_OS_WIN)
|
|
|
|
static long RoundUpToPowerOf2(long originalValue, long roundingMultiplePowerOf2)
|
|
{
|
|
long mask = roundingMultiplePowerOf2 - 1;
|
|
return (originalValue + mask) & ~mask;
|
|
}
|
|
|
|
bool win_ioctl_clone(const std::wstring& src_path, const std::wstring& dst_path, std::error_code& ec)
|
|
{
|
|
/**
|
|
* This algorithm inspired from https://github.com/0xbadfca11/reflink
|
|
* LICENSE MIT
|
|
*
|
|
* Additional references
|
|
* https://learn.microsoft.com/en-us/windows/win32/api/winioctl/ni-winioctl-fsctl_duplicate_extents_to_file
|
|
* https://github.com/microsoft/CopyOnWrite/blob/main/lib/Windows/WindowsCopyOnWriteFilesystem.cs#L94
|
|
*/
|
|
|
|
HANDLE hSourceFile = CreateFileW(src_path.c_str(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, 0, nullptr);
|
|
if (hSourceFile == INVALID_HANDLE_VALUE) {
|
|
ec = std::error_code(GetLastError(), std::system_category());
|
|
qDebug() << "Failed to open source file" << src_path.c_str();
|
|
return false;
|
|
}
|
|
|
|
ULONG fs_flags;
|
|
if (!GetVolumeInformationByHandleW(hSourceFile, nullptr, 0, nullptr, nullptr, &fs_flags, nullptr, 0)) {
|
|
ec = std::error_code(GetLastError(), std::system_category());
|
|
qDebug() << "Failed to get Filesystem information for " << src_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
return false;
|
|
}
|
|
if (!(fs_flags & FILE_SUPPORTS_BLOCK_REFCOUNTING)) {
|
|
SetLastError(ERROR_NOT_CAPABLE);
|
|
ec = std::error_code(GetLastError(), std::system_category());
|
|
qWarning() << "Filesystem at " << src_path.c_str() << " does not support reflink";
|
|
CloseHandle(hSourceFile);
|
|
return false;
|
|
}
|
|
|
|
FILE_END_OF_FILE_INFO sourceFileLength;
|
|
if (!GetFileSizeEx(hSourceFile, &sourceFileLength.EndOfFile)) {
|
|
ec = std::error_code(GetLastError(), std::system_category());
|
|
qDebug() << "Failed to size of source file" << src_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
return false;
|
|
}
|
|
FILE_BASIC_INFO sourceFileBasicInfo;
|
|
if (!GetFileInformationByHandleEx(hSourceFile, FileBasicInfo, &sourceFileBasicInfo, sizeof(sourceFileBasicInfo))) {
|
|
ec = std::error_code(GetLastError(), std::system_category());
|
|
qDebug() << "Failed to source file info" << src_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
return false;
|
|
}
|
|
ULONG junk;
|
|
FSCTL_GET_INTEGRITY_INFORMATION_BUFFER sourceFileIntegrity;
|
|
if (!DeviceIoControl(hSourceFile, FSCTL_GET_INTEGRITY_INFORMATION, nullptr, 0, &sourceFileIntegrity, sizeof(sourceFileIntegrity), &junk,
|
|
nullptr)) {
|
|
ec = std::error_code(GetLastError(), std::system_category());
|
|
qDebug() << "Failed to source file integrity info" << src_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
return false;
|
|
}
|
|
|
|
HANDLE hDestFile = CreateFileW(dst_path.c_str(), GENERIC_READ | GENERIC_WRITE | DELETE, 0, nullptr, CREATE_NEW, 0, hSourceFile);
|
|
|
|
if (hDestFile == INVALID_HANDLE_VALUE) {
|
|
ec = std::error_code(GetLastError(), std::system_category());
|
|
qDebug() << "Failed to open dest file" << dst_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
return false;
|
|
}
|
|
FILE_DISPOSITION_INFO destFileDispose = { TRUE };
|
|
if (!SetFileInformationByHandle(hDestFile, FileDispositionInfo, &destFileDispose, sizeof(destFileDispose))) {
|
|
ec = std::error_code(GetLastError(), std::system_category());
|
|
qDebug() << "Failed to set dest file info" << dst_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
CloseHandle(hDestFile);
|
|
return false;
|
|
}
|
|
|
|
if (!DeviceIoControl(hDestFile, FSCTL_SET_SPARSE, nullptr, 0, nullptr, 0, &junk, nullptr)) {
|
|
ec = std::error_code(GetLastError(), std::system_category());
|
|
qDebug() << "Failed to set dest sparseness" << dst_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
CloseHandle(hDestFile);
|
|
return false;
|
|
}
|
|
FSCTL_SET_INTEGRITY_INFORMATION_BUFFER setDestFileintegrity = { sourceFileIntegrity.ChecksumAlgorithm, sourceFileIntegrity.Reserved,
|
|
sourceFileIntegrity.Flags };
|
|
if (!DeviceIoControl(hDestFile, FSCTL_SET_INTEGRITY_INFORMATION, &setDestFileintegrity, sizeof(setDestFileintegrity), nullptr, 0,
|
|
nullptr, nullptr)) {
|
|
ec = std::error_code(GetLastError(), std::system_category());
|
|
qDebug() << "Failed to set dest file integrity info" << dst_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
CloseHandle(hDestFile);
|
|
return false;
|
|
}
|
|
if (!SetFileInformationByHandle(hDestFile, FileEndOfFileInfo, &sourceFileLength, sizeof(sourceFileLength))) {
|
|
ec = std::error_code(GetLastError(), std::system_category());
|
|
qDebug() << "Failed to set dest file size" << dst_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
CloseHandle(hDestFile);
|
|
return false;
|
|
}
|
|
|
|
const LONG64 splitThreshold = (1LL << 32) - sourceFileIntegrity.ClusterSizeInBytes;
|
|
|
|
DUPLICATE_EXTENTS_DATA dupExtent;
|
|
dupExtent.FileHandle = hSourceFile;
|
|
for (LONG64 offset = 0, remain = RoundUpToPowerOf2(sourceFileLength.EndOfFile.QuadPart, sourceFileIntegrity.ClusterSizeInBytes);
|
|
remain > 0; offset += splitThreshold, remain -= splitThreshold) {
|
|
dupExtent.SourceFileOffset.QuadPart = dupExtent.TargetFileOffset.QuadPart = offset;
|
|
dupExtent.ByteCount.QuadPart = std::min(splitThreshold, remain);
|
|
|
|
if (!DeviceIoControl(hDestFile, FSCTL_DUPLICATE_EXTENTS_TO_FILE, &dupExtent, sizeof(dupExtent), nullptr, 0, &junk, nullptr)) {
|
|
DWORD err = GetLastError();
|
|
QString additionalMessage;
|
|
if (err == ERROR_BLOCK_TOO_MANY_REFERENCES) {
|
|
static const int MaxClonesPerFile = 8175;
|
|
additionalMessage =
|
|
QString(
|
|
" This is ERROR_BLOCK_TOO_MANY_REFERENCES and may mean you have surpassed the maximum "
|
|
"allowed %1 references for a single file. "
|
|
"See "
|
|
"https://docs.microsoft.com/en-us/windows-server/storage/refs/block-cloning#functionality-restrictions-and-remarks")
|
|
.arg(MaxClonesPerFile);
|
|
}
|
|
ec = std::error_code(err, std::system_category());
|
|
qDebug() << "Failed copy-on-write cloning of" << src_path.c_str() << "to" << dst_path.c_str() << "with error" << err
|
|
<< additionalMessage;
|
|
CloseHandle(hSourceFile);
|
|
CloseHandle(hDestFile);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!(sourceFileBasicInfo.FileAttributes & FILE_ATTRIBUTE_SPARSE_FILE)) {
|
|
FILE_SET_SPARSE_BUFFER setDestSparse = { FALSE };
|
|
if (!DeviceIoControl(hDestFile, FSCTL_SET_SPARSE, &setDestSparse, sizeof(setDestSparse), nullptr, 0, &junk, nullptr)) {
|
|
qDebug() << "Failed to set dest file sparseness" << dst_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
CloseHandle(hDestFile);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
sourceFileBasicInfo.CreationTime.QuadPart = 0;
|
|
if (!SetFileInformationByHandle(hDestFile, FileBasicInfo, &sourceFileBasicInfo, sizeof(sourceFileBasicInfo))) {
|
|
qDebug() << "Failed to set dest file creation time" << dst_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
CloseHandle(hDestFile);
|
|
return false;
|
|
}
|
|
if (!FlushFileBuffers(hDestFile)) {
|
|
qDebug() << "Failed to flush dest file buffer" << dst_path.c_str();
|
|
CloseHandle(hSourceFile);
|
|
CloseHandle(hDestFile);
|
|
return false;
|
|
}
|
|
destFileDispose = { FALSE };
|
|
bool result = !!SetFileInformationByHandle(hDestFile, FileDispositionInfo, &destFileDispose, sizeof(destFileDispose));
|
|
|
|
CloseHandle(hSourceFile);
|
|
CloseHandle(hDestFile);
|
|
|
|
return result;
|
|
}
|
|
|
|
#elif defined(Q_OS_LINUX)
|
|
|
|
bool linux_ficlone(const std::string& src_path, const std::string& dst_path, std::error_code& ec)
|
|
{
|
|
// https://man7.org/linux/man-pages/man2/ioctl_ficlone.2.html
|
|
|
|
int src_fd = open(src_path.c_str(), O_RDONLY);
|
|
if (src_fd == -1) {
|
|
qDebug() << "Failed to open file:" << src_path.c_str();
|
|
qDebug() << "Error:" << strerror(errno);
|
|
ec = std::make_error_code(static_cast<std::errc>(errno));
|
|
return false;
|
|
}
|
|
int dst_fd = open(dst_path.c_str(), O_CREAT | O_WRONLY | O_TRUNC, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
|
|
if (dst_fd == -1) {
|
|
qDebug() << "Failed to open file:" << dst_path.c_str();
|
|
qDebug() << "Error:" << strerror(errno);
|
|
ec = std::make_error_code(static_cast<std::errc>(errno));
|
|
close(src_fd);
|
|
return false;
|
|
}
|
|
// attempt to clone
|
|
if (ioctl(dst_fd, FICLONE, src_fd) == -1) {
|
|
qDebug() << "Failed to clone file:" << src_path.c_str() << "to" << dst_path.c_str();
|
|
qDebug() << "Error:" << strerror(errno);
|
|
ec = std::make_error_code(static_cast<std::errc>(errno));
|
|
close(src_fd);
|
|
close(dst_fd);
|
|
return false;
|
|
}
|
|
if (close(src_fd)) {
|
|
qDebug() << "Failed to close file:" << src_path.c_str();
|
|
qDebug() << "Error:" << strerror(errno);
|
|
}
|
|
if (close(dst_fd)) {
|
|
qDebug() << "Failed to close file:" << dst_path.c_str();
|
|
qDebug() << "Error:" << strerror(errno);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
#elif defined(Q_OS_MACOS) || defined(Q_OS_FREEBSD) || defined(Q_OS_OPENBSD)
|
|
|
|
bool macos_bsd_clonefile(const std::string& src_path, const std::string& dst_path, std::error_code& ec)
|
|
{
|
|
// clonefile(const char * src, const char * dst, int flags);
|
|
// https://www.manpagez.com/man/2/clonefile/
|
|
|
|
qDebug() << "attempting file clone via clonefile" << src_path.c_str() << "to" << dst_path.c_str();
|
|
if (clonefile(src_path.c_str(), dst_path.c_str(), 0) == -1) {
|
|
qDebug() << "Failed to clone file:" << src_path.c_str() << "to" << dst_path.c_str();
|
|
qDebug() << "Error:" << strerror(errno);
|
|
ec = std::make_error_code(static_cast<std::errc>(errno));
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* @brief if the Filesystem is symlink capable
|
|
*
|
|
*/
|
|
bool canLinkOnFS(const QString& path)
|
|
{
|
|
FilesystemInfo info = statFS(path);
|
|
return canLinkOnFS(info);
|
|
}
|
|
bool canLinkOnFS(const FilesystemInfo& info)
|
|
{
|
|
return canLinkOnFS(info.fsType);
|
|
}
|
|
bool canLinkOnFS(FilesystemType type)
|
|
{
|
|
return !s_non_link_filesystems.contains(type);
|
|
}
|
|
/**
|
|
* @brief if the Filesystem is symlink capable on both ends
|
|
*
|
|
*/
|
|
bool canLink(const QString& src, const QString& dst)
|
|
{
|
|
return canLinkOnFS(src) && canLinkOnFS(dst);
|
|
}
|
|
|
|
uintmax_t hardLinkCount(const QString& path)
|
|
{
|
|
std::error_code err;
|
|
int count = fs::hard_link_count(StringUtils::toStdString(path), err);
|
|
if (err) {
|
|
qWarning() << "Failed to count hard links for" << path << ":" << QString::fromStdString(err.message());
|
|
count = 0;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
} // namespace FS
|