657 lines
19 KiB
C++
657 lines
19 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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*
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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 <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 <QTextStream>
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#include <QUrl>
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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 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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#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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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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/**
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* @brief links a directory and it's contents from src to dest
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* @param offset subdirectory form src to link to dest
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* @return if there was an error during the attempt to link
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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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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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// 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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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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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(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), err);
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} else if (fs::is_directory(StringUtils::toStdString(src_path))) {
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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(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), 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(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), err);
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}
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}
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if (err) {
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qWarning() << "Failed to link 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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qDebug() << "Error catagory:" << err.category().name();
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qDebug() << "Error code:" << err.value();
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m_last_os_err = err.value();
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emit linkFailed(src_path, dst_path, err);
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} else {
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m_linked++;
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emit fileLinked(relative_dst_path);
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}
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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 recursivly:" << src << "to" << dst;
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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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link_file(src_path, relative_path);
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}
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}
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return err.value() == 0;
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}
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bool move(const QString& source, const QString& dest)
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{
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std::error_code err;
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ensureFilePathExists(dest);
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fs::rename(StringUtils::toStdString(source), StringUtils::toStdString(dest), err);
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if (err) {
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qWarning() << "Failed to move file:" << QString::fromStdString(err.message());
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qDebug() << "Source file:" << source;
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qDebug() << "Destination file:" << dest;
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}
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return err.value() == 0;
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}
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bool deletePath(QString path)
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{
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std::error_code err;
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fs::remove_all(StringUtils::toStdString(path), err);
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if (err) {
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qWarning() << "Failed to remove files:" << QString::fromStdString(err.message());
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}
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return err.value() == 0;
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}
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bool trash(QString path, QString *pathInTrash)
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{
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#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
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return false;
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#else
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// FIXME: Figure out trash in Flatpak. Qt seemingly doesn't use the Trash portal
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if (DesktopServices::isFlatpak())
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return false;
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#if defined Q_OS_WIN32
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if (IsWindowsServer())
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return false;
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#endif
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return QFile::moveToTrash(path, pathInTrash);
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#endif
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}
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QString PathCombine(const QString& path1, const QString& path2)
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{
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if (!path1.size())
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return path2;
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if (!path2.size())
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return path1;
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return QDir::cleanPath(path1 + QDir::separator() + path2);
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}
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QString PathCombine(const QString& path1, const QString& path2, const QString& path3)
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{
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return PathCombine(PathCombine(path1, path2), path3);
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}
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QString PathCombine(const QString& path1, const QString& path2, const QString& path3, const QString& path4)
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{
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return PathCombine(PathCombine(path1, path2, path3), path4);
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}
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QString AbsolutePath(QString path)
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{
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return QFileInfo(path).absolutePath();
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}
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QString ResolveExecutable(QString path)
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{
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if (path.isEmpty()) {
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return QString();
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}
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if (!path.contains('/')) {
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path = QStandardPaths::findExecutable(path);
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}
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QFileInfo pathInfo(path);
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if (!pathInfo.exists() || !pathInfo.isExecutable()) {
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return QString();
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}
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return pathInfo.absoluteFilePath();
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}
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/**
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* Normalize path
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*
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* Any paths inside the current folder will be normalized to relative paths (to current)
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* Other paths will be made absolute
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*/
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QString NormalizePath(QString path)
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{
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QDir a = QDir::currentPath();
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QString currentAbsolute = a.absolutePath();
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QDir b(path);
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QString newAbsolute = b.absolutePath();
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if (newAbsolute.startsWith(currentAbsolute)) {
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return a.relativeFilePath(newAbsolute);
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} else {
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return newAbsolute;
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}
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}
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QString badFilenameChars = "\"\\/?<>:;*|!+\r\n";
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QString RemoveInvalidFilenameChars(QString string, QChar replaceWith)
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{
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for (int i = 0; i < string.length(); i++) {
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if (badFilenameChars.contains(string[i])) {
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string[i] = replaceWith;
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}
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}
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return string;
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}
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QString DirNameFromString(QString string, QString inDir)
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{
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int num = 0;
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QString baseName = RemoveInvalidFilenameChars(string, '-');
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QString dirName;
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do {
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if (num == 0) {
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dirName = baseName;
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} else {
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dirName = baseName + "(" + QString::number(num) + ")";
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}
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// If it's over 9000
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if (num > 9000)
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return "";
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num++;
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} while (QFileInfo(PathCombine(inDir, dirName)).exists());
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return dirName;
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}
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// Does the folder path contain any '!'? If yes, return true, otherwise false.
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// (This is a problem for Java)
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bool checkProblemticPathJava(QDir folder)
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{
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QString pathfoldername = folder.absolutePath();
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return pathfoldername.contains("!", Qt::CaseInsensitive);
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}
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QString getDesktopDir()
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{
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return QStandardPaths::writableLocation(QStandardPaths::DesktopLocation);
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}
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// Cross-platform Shortcut creation
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bool createShortcut(QString destination, QString target, QStringList args, QString name, QString icon)
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{
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#if defined(Q_OS_MACOS)
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destination += ".command";
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QFile f(destination);
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f.open(QIODevice::WriteOnly | QIODevice::Text);
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QTextStream stream(&f);
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QString argstring;
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if (!args.empty())
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argstring = " \"" + args.join("\" \"") + "\"";
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stream << "#!/bin/bash"
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<< "\n";
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stream << "\""
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<< target
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<< "\" "
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<< argstring
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<< "\n";
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stream.flush();
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f.close();
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f.setPermissions(f.permissions() | QFileDevice::ExeOwner | QFileDevice::ExeGroup | QFileDevice::ExeOther);
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return true;
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#elif defined(Q_OS_LINUX) || defined(Q_OS_FREEBSD) || defined(Q_OS_OPENBSD)
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QFile f(destination);
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f.open(QIODevice::WriteOnly | QIODevice::Text);
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QTextStream stream(&f);
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QString argstring;
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if (!args.empty())
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argstring = " '" + args.join("' '") + "'";
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stream << "[Desktop Entry]"
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<< "\n";
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stream << "Type=Application"
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<< "\n";
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stream << "Exec=\"" << target.toLocal8Bit() << "\"" << argstring.toLocal8Bit() << "\n";
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stream << "Name=" << name.toLocal8Bit() << "\n";
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if (!icon.isEmpty())
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{
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stream << "Icon=" << icon.toLocal8Bit() << "\n";
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}
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stream.flush();
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f.close();
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f.setPermissions(f.permissions() | QFileDevice::ExeOwner | QFileDevice::ExeGroup | QFileDevice::ExeOther);
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return true;
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#elif defined(Q_OS_WIN)
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QFileInfo targetInfo(target);
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if (!targetInfo.exists())
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{
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qWarning() << "Target file does not exist!";
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return false;
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}
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target = targetInfo.absoluteFilePath();
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if (target.length() >= MAX_PATH)
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{
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qWarning() << "Target file path is too long!";
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return false;
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}
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if (!icon.isEmpty() && icon.length() >= MAX_PATH)
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{
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qWarning() << "Icon path is too long!";
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return false;
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}
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destination += ".lnk";
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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;
|
|
}
|
|
|
|
}
|