pollymc/launcher/ui/dialogs/BlockedModsDialog.cpp
Rachel Powers 8f30237765 fix: prevent potental crash if droping non local files
Signed-off-by: Rachel Powers <508861+Ryex@users.noreply.github.com>
2022-12-09 17:21:40 -07:00

370 lines
12 KiB
C++

// SPDX-FileCopyrightText: 2022 Sefa Eyeoglu <contact@scrumplex.net>
// SPDX-FileCopyrightText: 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
// SPDX-FileCopyrightText: 2022 kumquat-ir <66188216+kumquat-ir@users.noreply.github.com>
//
// SPDX-License-Identifier: GPL-3.0-only
/*
* Prism Launcher - Minecraft Launcher
* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
* Copyright (C) 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
* Copyright (C) 2022 kumquat-ir <66188216+kumquat-ir@users.noreply.github.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "BlockedModsDialog.h"
#include "ui_BlockedModsDialog.h"
#include "Application.h"
#include "modplatform/helpers/HashUtils.h"
#include <QDebug>
#include <QDesktopServices>
#include <QDialogButtonBox>
#include <QDragEnterEvent>
#include <QFileDialog>
#include <QFileInfo>
#include <QPushButton>
#include <QStandardPaths>
BlockedModsDialog::BlockedModsDialog(QWidget* parent, const QString& title, const QString& text, QList<BlockedMod>& mods)
: QDialog(parent), ui(new Ui::BlockedModsDialog), m_mods(mods)
{
m_hashing_task = shared_qobject_ptr<ConcurrentTask>(new ConcurrentTask(this, "MakeHashesTask", 10));
connect(m_hashing_task.get(), &Task::finished, this, &BlockedModsDialog::hashTaskFinished);
ui->setupUi(this);
m_openMissingButton = ui->buttonBox->addButton(tr("Open Missing"), QDialogButtonBox::ActionRole);
connect(m_openMissingButton, &QPushButton::clicked, this, [this]() { openAll(true); });
auto downloadFolderButton = ui->buttonBox->addButton(tr("Add Download Folder"), QDialogButtonBox::ActionRole);
connect(downloadFolderButton, &QPushButton::clicked, this, &BlockedModsDialog::addDownloadFolder);
connect(&m_watcher, &QFileSystemWatcher::directoryChanged, this, &BlockedModsDialog::directoryChanged);
qDebug() << "[Blocked Mods Dialog] Mods List: " << mods;
setupWatch();
scanPaths();
this->setWindowTitle(title);
ui->labelDescription->setText(text);
// force all URL handling as external
connect(ui->textBrowserWatched, &QTextBrowser::anchorClicked, this, [](const QUrl url) { QDesktopServices::openUrl(url); });
setAcceptDrops(true);
update();
}
BlockedModsDialog::~BlockedModsDialog()
{
delete ui;
}
void BlockedModsDialog::dragEnterEvent(QDragEnterEvent* e)
{
if (e->mimeData()->hasUrls()) {
e->acceptProposedAction();
}
}
void BlockedModsDialog::dropEvent(QDropEvent* e)
{
for (QUrl& url : e->mimeData()->urls()) {
if (url.scheme().isEmpty()) { // ensure isLocalFile() works correctly
url.setScheme("file");
}
if (!url.isLocalFile()) { // can't drop external files here.
continue;
}
QString filePath = url.toLocalFile();
qDebug() << "[Blocked Mods Dialog] Dropped file:" << filePath;
addHashTask(filePath);
// watch for changes
QFileInfo file = QFileInfo(filePath);
QString path = file.dir().absolutePath();
qDebug() << "[Blocked Mods Dialog] Adding watch path:" << path;
m_watcher.addPath(path);
}
scanPaths();
update();
}
void BlockedModsDialog::done(int r)
{
QDialog::done(r);
disconnect(&m_watcher, &QFileSystemWatcher::directoryChanged, this, &BlockedModsDialog::directoryChanged);
}
void BlockedModsDialog::openAll(bool missingOnly)
{
for (auto& mod : m_mods) {
if (!missingOnly || !mod.matched) {
QDesktopServices::openUrl(mod.websiteUrl);
}
}
}
void BlockedModsDialog::addDownloadFolder()
{
QString dir =
QFileDialog::getExistingDirectory(this, tr("Select directory where you downloaded the mods"),
QStandardPaths::writableLocation(QStandardPaths::DownloadLocation), QFileDialog::ShowDirsOnly);
qDebug() << "[Blocked Mods Dialog] Adding watch path:" << dir;
m_watcher.addPath(dir);
scanPath(dir, true);
update();
}
/// @brief update UI with current status of the blocked mod detection
void BlockedModsDialog::update()
{
QString text;
QString span;
for (auto& mod : m_mods) {
if (mod.matched) {
// &#x2714; -> html for HEAVY CHECK MARK : ✔
span = QString(tr("<span style=\"color:green\"> &#x2714; Found at %1 </span>")).arg(mod.localPath);
} else {
// &#x2718; -> html for HEAVY BALLOT X : ✘
span = QString(tr("<span style=\"color:red\"> &#x2718; Not Found </span>"));
}
text += QString(tr("%1: <a href='%2'>%2</a> <p>Hash: %3 %4</p> <br/>")).arg(mod.name, mod.websiteUrl, mod.hash, span);
}
ui->textBrowserModsListing->setText(text);
QString watching;
for (auto& dir : m_watcher.directories()) {
watching += QString("<a href=\"%1\">%1</a><br/>").arg(dir);
}
ui->textBrowserWatched->setText(watching);
if (allModsMatched()) {
ui->labelModsFound->setText("<span style=\"color:green\">✔</span>" + tr("All mods found"));
m_openMissingButton->setDisabled(true);
} else {
ui->labelModsFound->setText(tr("Please download the missing mods."));
m_openMissingButton->setDisabled(false);
}
}
/// @brief Signal fired when a watched direcotry has changed
/// @param path the path to the changed directory
void BlockedModsDialog::directoryChanged(QString path)
{
qDebug() << "[Blocked Mods Dialog] Directory changed: " << path;
validateMatchedMods();
scanPath(path, true);
}
/// @brief add the user downloads folder and the global mods folder to the filesystem watcher
void BlockedModsDialog::setupWatch()
{
const QString downloadsFolder = QStandardPaths::writableLocation(QStandardPaths::DownloadLocation);
const QString modsFolder = APPLICATION->settings()->get("CentralModsDir").toString();
m_watcher.addPath(downloadsFolder);
m_watcher.addPath(modsFolder);
}
/// @brief scan all watched folder
void BlockedModsDialog::scanPaths()
{
for (auto& dir : m_watcher.directories()) {
scanPath(dir, false);
}
runHashTask();
}
/// @brief Scan the directory at path, skip paths that do not contain a file name
/// of a blocked mod we are looking for
/// @param path the directory to scan
void BlockedModsDialog::scanPath(QString path, bool start_task)
{
QDir scan_dir(path);
QDirIterator scan_it(path, QDir::Filter::Files | QDir::Filter::Hidden, QDirIterator::NoIteratorFlags);
while (scan_it.hasNext()) {
QString file = scan_it.next();
if (!checkValidPath(file)) {
continue;
}
addHashTask(file);
}
if (start_task) {
runHashTask();
}
}
/// @brief add a hashing task for the file located at path, add the path to the pending set if the hasing task is already running
/// @param path the path to the local file being hashed
void BlockedModsDialog::addHashTask(QString path)
{
qDebug() << "[Blocked Mods Dialog] adding a Hash task for" << path << "to the pending set.";
m_pending_hash_paths.insert(path);
}
/// @brief add a hashing task for the file located at path and connect it to check that hash against
/// our blocked mods list
/// @param path the path to the local file being hashed
void BlockedModsDialog::buildHashTask(QString path)
{
auto hash_task = Hashing::createBlockedModHasher(path, ModPlatform::Provider::FLAME, "sha1");
qDebug() << "[Blocked Mods Dialog] Creating Hash task for path: " << path;
connect(hash_task.get(), &Task::succeeded, this, [this, hash_task, path] { checkMatchHash(hash_task->getResult(), path); });
connect(hash_task.get(), &Task::failed, this, [path] { qDebug() << "Failed to hash path: " << path; });
m_hashing_task->addTask(hash_task);
}
/// @brief check if the computed hash for the provided path matches a blocked
/// mod we are looking for
/// @param hash the computed hash for the provided path
/// @param path the path to the local file being compared
void BlockedModsDialog::checkMatchHash(QString hash, QString path)
{
bool match = false;
qDebug() << "[Blocked Mods Dialog] Checking for match on hash: " << hash << "| From path:" << path;
for (auto& mod : m_mods) {
if (mod.matched) {
continue;
}
if (mod.hash.compare(hash, Qt::CaseInsensitive) == 0) {
mod.matched = true;
mod.localPath = path;
match = true;
qDebug() << "[Blocked Mods Dialog] Hash match found:" << mod.name << hash << "| From path:" << path;
break;
}
}
if (match) {
update();
}
}
/// @brief Check if the name of the file at path matches the name of a blocked mod we are searching for
/// @param path the path to check
/// @return boolean: did the path match the name of a blocked mod?
bool BlockedModsDialog::checkValidPath(QString path)
{
const QFileInfo file = QFileInfo(path);
const QString filename = file.fileName();
QString laxFilename(filename);
laxFilename.replace('+', ' ');
auto compare = [](QString fsfilename, QString metadataFilename) {
return metadataFilename.compare(fsfilename, Qt::CaseInsensitive) == 0;
};
for (auto& mod : m_mods) {
if (compare(filename, mod.name)) {
qDebug() << "[Blocked Mods Dialog] Name match found:" << mod.name << "| From path:" << path;
return true;
}
if (compare(laxFilename, mod.name)) {
qDebug() << "[Blocked Mods Dialog] Lax name match found:" << mod.name << "| From path:" << path;
return true;
}
}
return false;
}
bool BlockedModsDialog::allModsMatched()
{
return std::all_of(m_mods.begin(), m_mods.end(), [](auto const& mod) { return mod.matched; });
}
/// @brief ensure matched file paths still exist
void BlockedModsDialog::validateMatchedMods()
{
bool changed = false;
for (auto& mod : m_mods) {
if (mod.matched) {
QFileInfo file = QFileInfo(mod.localPath);
if (!file.exists() || !file.isFile()) {
qDebug() << "[Blocked Mods Dialog] File" << mod.localPath << "for mod" << mod.name
<< "has vanshed! marking as not matched.";
mod.localPath = "";
mod.matched = false;
changed = true;
}
}
}
if (changed) {
update();
}
}
/// @brief run hash task or mark a pending run if it is already runing
void BlockedModsDialog::runHashTask()
{
if (!m_hashing_task->isRunning()) {
m_rehash_pending = false;
if (!m_pending_hash_paths.isEmpty()) {
qDebug() << "[Blocked Mods Dialog] there are pending hash tasks, building and running tasks";
auto path = m_pending_hash_paths.begin();
while (path != m_pending_hash_paths.end()) {
buildHashTask(*path);
path = m_pending_hash_paths.erase(path);
}
m_hashing_task->start();
}
} else {
qDebug() << "[Blocked Mods Dialog] queueing another run of the hashing task";
qDebug() << "[Blocked Mods Dialog] pending hash tasks:" << m_pending_hash_paths;
m_rehash_pending = true;
}
}
void BlockedModsDialog::hashTaskFinished()
{
qDebug() << "[Blocked Mods Dialog] All hash tasks finished";
if (m_rehash_pending) {
qDebug() << "[Blocked Mods Dialog] task finished with a rehash pending, rerunning";
runHashTask();
}
}
/// qDebug print support for the BlockedMod struct
QDebug operator<<(QDebug debug, const BlockedMod& m)
{
QDebugStateSaver saver(debug);
debug.nospace() << "{ name: " << m.name << ", websiteUrl: " << m.websiteUrl << ", hash: " << m.hash << ", matched: " << m.matched
<< ", localPath: " << m.localPath << "}";
return debug;
}