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GH-1389 wrap QDesktopServices and QProcess::startDetached

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Essentially do not pass some environment variables to subprocesses:
* LD_PRELOAD
* LD_LIBRARY_PATH
* LD_DEBUG
* QT_PLUGIN_PATH
* QT_FONTPATH
This commit is contained in:
Petr Mrázek 2016-01-05 07:32:52 +01:00
parent d1e344f28f
commit 4d0caf6254
19 changed files with 235 additions and 72 deletions
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4
application/GuiUtil.cpp
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@ -1,7 +1,6 @@
#include "GuiUtil.h"
#include <QClipboard>
#include <QDesktopServices>
#include <QApplication>
#include <QFileDialog>
@ -11,6 +10,7 @@
#include "MultiMC.h"
#include <settings/SettingsObject.h>
#include <DesktopServices.h>
#include <BuildConfig.h>
void GuiUtil::uploadPaste(const QString &text, QWidget *parentWidget)
@ -42,7 +42,7 @@ void GuiUtil::uploadPaste(const QString &text, QWidget *parentWidget)
{
const QString link = paste->pasteLink();
setClipboardText(link);
QDesktopServices::openUrl(link);
DesktopServices::openUrl(link);
CustomMessageBox::selectable(
parentWidget, QObject::tr("Upload finished"),
QObject::tr("The <a href=\"%1\">link to the uploaded log</a> has been opened in "

32
application/MainWindow.cpp
View File

@ -26,7 +26,6 @@
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
#include <QtGui/QDesktopServices>
#include <QtGui/QKeyEvent>
#include <QtWidgets/QAction>
@ -69,6 +68,7 @@
#include <tools/BaseProfiler.h>
#include <updater/DownloadTask.h>
#include <updater/UpdateChecker.h>
#include <DesktopServices.h>
#include "InstancePageProvider.h"
#include "InstanceProxyModel.h"
@ -1197,7 +1197,7 @@ void MainWindow::on_actionAddInstance_triggered()
void MainWindow::on_actionREDDIT_triggered()
{
openWebPage(QUrl("https://www.reddit.com/r/MultiMC/"));
DesktopServices::openUrl(QUrl("https://www.reddit.com/r/MultiMC/"));
}
void MainWindow::on_actionCopyInstance_triggered()
@ -1312,7 +1312,7 @@ void MainWindow::on_actionChangeInstGroup_triggered()
void MainWindow::on_actionViewInstanceFolder_triggered()
{
QString str = MMC->settings()->get("InstanceDir").toString();
FS::openDirInDefaultProgram(str);
DesktopServices::openDirectory(str);
}
void MainWindow::on_actionRefresh_triggered()
@ -1322,7 +1322,7 @@ void MainWindow::on_actionRefresh_triggered()
void MainWindow::on_actionViewCentralModsFolder_triggered()
{
FS::openDirInDefaultProgram(MMC->settings()->get("CentralModsDir").toString(), true);
DesktopServices::openDirectory(MMC->settings()->get("CentralModsDir").toString(), true);
}
void MainWindow::on_actionConfig_Folder_triggered()
@ -1330,7 +1330,7 @@ void MainWindow::on_actionConfig_Folder_triggered()
if (m_selectedInstance)
{
QString str = m_selectedInstance->instanceConfigFolder();
FS::openDirInDefaultProgram(QDir(str).absolutePath());
DesktopServices::openDirectory(QDir(str).absolutePath());
}
}
@ -1384,26 +1384,30 @@ void MainWindow::on_actionManageAccounts_triggered()
void MainWindow::on_actionReportBug_triggered()
{
openWebPage(QUrl("https://github.com/MultiMC/MultiMC5/issues"));
DesktopServices::openUrl(QUrl("https://github.com/MultiMC/MultiMC5/issues"));
}
void MainWindow::on_actionPatreon_triggered()
{
openWebPage(QUrl("http://www.patreon.com/multimc"));
DesktopServices::openUrl(QUrl("http://www.patreon.com/multimc"));
}
void MainWindow::on_actionMoreNews_triggered()
{
openWebPage(QUrl("http://multimc.org/posts.html"));
DesktopServices::openUrl(QUrl("http://multimc.org/posts.html"));
}
void MainWindow::newsButtonClicked()
{
QList<NewsEntryPtr> entries = m_newsChecker->getNewsEntries();
if (entries.count() > 0)
openWebPage(QUrl(entries[0]->link));
{
DesktopServices::openUrl(QUrl(entries[0]->link));
}
else
openWebPage(QUrl("http://multimc.org/posts.html"));
{
DesktopServices::openUrl(QUrl("http://multimc.org/posts.html"));
}
}
void MainWindow::on_actionAbout_triggered()
@ -1469,7 +1473,7 @@ void MainWindow::on_actionViewSelectedInstFolder_triggered()
if (m_selectedInstance)
{
QString str = m_selectedInstance->instanceRoot();
FS::openDirInDefaultProgram(QDir(str).absolutePath());
DesktopServices::openDirectory(QDir(str).absolutePath());
}
}
@ -1538,12 +1542,6 @@ void MainWindow::startTask(Task *task)
task->start();
}
// BrowserDialog
void MainWindow::openWebPage(QUrl url)
{
QDesktopServices::openUrl(url);
}
void MainWindow::instanceChanged(const QModelIndex &current, const QModelIndex &previous)
{
if (!current.isValid())

3
application/MainWindow.h
View File

@ -166,9 +166,6 @@ private:
void finalizeInstance(InstancePtr inst);
void launch(InstancePtr instance, bool online = true, BaseProfilerFactory *profiler = nullptr);
/// open a web page in the default browser
void openWebPage(QUrl url);
private:
std::unique_ptr<Ui> ui;

8
application/MultiMC.cpp
View File

@ -17,7 +17,6 @@
#include <QLibraryInfo>
#include <QMessageBox>
#include <QStringList>
#include <QDesktopServices>
#include <QDebug>
#include "InstanceList.h"
@ -54,6 +53,7 @@
#include <Commandline.h>
#include <FileSystem.h>
#include <DesktopServices.h>
using namespace Commandline;
@ -932,12 +932,12 @@ bool MultiMC::openJsonEditor(const QString &filename)
const QString file = QDir::current().absoluteFilePath(filename);
if (m_settings->get("JsonEditor").toString().isEmpty())
{
return QDesktopServices::openUrl(QUrl::fromLocalFile(file));
return DesktopServices::openUrl(QUrl::fromLocalFile(file));
}
else
{
return QProcess::startDetached(m_settings->get("JsonEditor").toString(), QStringList()
<< file);
//return DesktopServices::openFile(m_settings->get("JsonEditor").toString(), file);
return DesktopServices::run(m_settings->get("JsonEditor").toString(), {});
}
}

4
application/dialogs/EditAccountDialog.cpp
View File

@ -15,7 +15,7 @@
#include "EditAccountDialog.h"
#include "ui_EditAccountDialog.h"
#include <QDesktopServices>
#include <DesktopServices.h>
#include <QUrl>
EditAccountDialog::EditAccountDialog(const QString &text, QWidget *parent, int flags)
@ -37,7 +37,7 @@ EditAccountDialog::~EditAccountDialog()
void EditAccountDialog::on_label_linkActivated(const QString &link)
{
QDesktopServices::openUrl(QUrl(link));
DesktopServices::openUrl(QUrl(link));
}
void EditAccountDialog::setUsername(const QString & user) const

2
application/dialogs/ModEditDialogCommon.cpp
View File

@ -28,7 +28,7 @@ void showWebsiteForMod(QWidget *parentDlg, Mod &m)
{
url = "http://" + url;
}
QDesktopServices::openUrl(url);
DesktopServices::openUrl(url);
}
else
{

2
application/dialogs/ModEditDialogCommon.h
View File

@ -1,6 +1,6 @@
#pragma once
#include <QModelIndex>
#include <QDesktopServices>
#include <DesktopServices.h>
#include <QWidget>
#include <minecraft/Mod.h>

4
application/pages/LegacyJarModPage.cpp
View File

@ -25,7 +25,7 @@
#include "minecraft/ModList.h"
#include "minecraft/LegacyInstance.h"
#include "Env.h"
#include <FileSystem.h>
#include <DesktopServices.h>
#include "MultiMC.h"
#include <GuiUtil.h>
@ -146,7 +146,7 @@ void LegacyJarModPage::on_rmJarBtn_clicked()
void LegacyJarModPage::on_viewJarBtn_clicked()
{
FS::openDirInDefaultProgram(m_inst->jarModsDir(), true);
DesktopServices::openDirectory(m_inst->jarModsDir(), true);
}
void LegacyJarModPage::jarCurrent(QModelIndex current, QModelIndex previous)

5
application/pages/ModFolderPage.cpp
View File

@ -19,7 +19,6 @@
#include <QMessageBox>
#include <QEvent>
#include <QKeyEvent>
#include <QDesktopServices>
#include <QAbstractItemModel>
#include "MultiMC.h"
@ -29,7 +28,7 @@
#include "minecraft/ModList.h"
#include "minecraft/Mod.h"
#include "minecraft/VersionFilterData.h"
#include <FileSystem.h>
#include <DesktopServices.h>
ModFolderPage::ModFolderPage(BaseInstance *inst, std::shared_ptr<ModList> mods, QString id,
QString iconName, QString displayName, QString helpPage,
@ -162,7 +161,7 @@ void ModFolderPage::on_rmModBtn_clicked()
void ModFolderPage::on_viewModBtn_clicked()
{
FS::openDirInDefaultProgram(m_mods->dir().absolutePath(), true);
DesktopServices::openDirectory(m_mods->dir().absolutePath(), true);
}
void ModFolderPage::modCurrent(const QModelIndex &current, const QModelIndex &previous)

8
application/pages/ScreenshotsPage.cpp
View File

@ -12,7 +12,6 @@
#include <QEvent>
#include <QPainter>
#include <QClipboard>
#include <QDesktopServices>
#include <QKeyEvent>
#include <MultiMC.h>
@ -26,6 +25,7 @@
#include "RWStorage.h"
#include <FileSystem.h>
#include <DesktopServices.h>
typedef RWStorage<QString, QIcon> SharedIconCache;
typedef std::shared_ptr<SharedIconCache> SharedIconCachePtr;
@ -271,12 +271,12 @@ void ScreenshotsPage::onItemActivated(QModelIndex index)
return;
auto info = m_model->fileInfo(index);
QString fileName = info.absoluteFilePath();
FS::openFileInDefaultProgram(info.absoluteFilePath());
DesktopServices::openFile(info.absoluteFilePath());
}
void ScreenshotsPage::on_viewFolderBtn_clicked()
{
FS::openDirInDefaultProgram(m_folder, true);
DesktopServices::openDirectory(m_folder, true);
}
void ScreenshotsPage::on_uploadBtn_clicked()
@ -312,7 +312,7 @@ void ScreenshotsPage::on_uploadBtn_clicked()
auto link = QString("https://imgur.com/a/%1").arg(imgurAlbum->id());
QClipboard *clipboard = QApplication::clipboard();
clipboard->setText(link);
QDesktopServices::openUrl(link);
DesktopServices::openUrl(link);
CustomMessageBox::selectable(
this, tr("Upload finished"),
tr("The <a href=\"%1\">link to the uploaded album</a> has been opened in the "

7
application/pages/WorldListPage.cpp
View File

@ -16,7 +16,7 @@
#include "WorldListPage.h"
#include "ui_WorldListPage.h"
#include "minecraft/WorldList.h"
#include <FileSystem.h>
#include <DesktopServices.h>
#include "dialogs/ModEditDialogCommon.h"
#include <QEvent>
#include <QKeyEvent>
@ -123,7 +123,7 @@ void WorldListPage::on_rmWorldBtn_clicked()
void WorldListPage::on_viewFolderBtn_clicked()
{
FS::openDirInDefaultProgram(m_worlds->dir().absolutePath(), true);
DesktopServices::openDirectory(m_worlds->dir().absolutePath(), true);
}
QModelIndex WorldListPage::getSelectedWorld()
@ -193,7 +193,8 @@ void WorldListPage::on_mcEditBtn_clicked()
if(program.size())
{
qint64 pid = 0;
QProcess::startDetached(program, QStringList() << fullPath, mceditPath, &pid);
DesktopServices::openFile(program, fullPath, mceditPath, &pid);
if(pid == 0)
{
QMessageBox::warning(this->parentWidget(), tr("MCEdit failed to start!"), tr("MCEdit failed to start.\nIt may be necessary to reinstall it."));

4
application/widgets/PageContainer.cpp
View File

@ -25,13 +25,13 @@
#include <QLabel>
#include <QDialogButtonBox>
#include <QGridLayout>
#include <QDesktopServices>
#include "MultiMC.h"
#include "settings/SettingsObject.h"
#include "widgets/IconLabel.h"
#include "PageContainer_p.h"
#include <MultiMC.h>
#include <DesktopServices.h>
class PageEntryFilterModel : public QSortFilterProxyModel
{
@ -195,7 +195,7 @@ void PageContainer::help()
QString pageId = m_currentPage->helpPage();
if (pageId.isEmpty())
return;
QDesktopServices::openUrl(QUrl("https://github.com/MultiMC/MultiMC5/wiki/" + pageId));
DesktopServices::openUrl(QUrl("https://github.com/MultiMC/MultiMC5/wiki/" + pageId));
}
}

4
application/widgets/ServerStatus.cpp
View File

@ -2,6 +2,7 @@
#include "LineSeparator.h"
#include "IconLabel.h"
#include "status/StatusChecker.h"
#include <DesktopServices.h>
#include "MultiMC.h"
@ -11,7 +12,6 @@
#include <QMap>
#include <QToolButton>
#include <QAction>
#include <QDesktopServices>
class ClickableLabel : public QLabel
{
@ -127,7 +127,7 @@ void ServerStatus::addStatus(QString key, QString name)
void ServerStatus::clicked()
{
QDesktopServices::openUrl(QUrl("https://help.mojang.com/"));
DesktopServices::openUrl(QUrl("https://help.mojang.com/"));
}
void ServerStatus::setStatus(QString key, int value)

4
logic/CMakeLists.txt
View File

@ -32,8 +32,12 @@ set(LOGIC_SOURCES
# JSON parsing helpers
Json.h
Json.cpp
FileSystem.h
FileSystem.cpp
DesktopServices.h
DesktopServices.cpp
Exception.h
# RW lock protected map

149
logic/DesktopServices.cpp Normal file
View File

@ -0,0 +1,149 @@
#include "DesktopServices.h"
#include <QDir>
#include <QDesktopServices>
#include <QProcess>
#include <QDebug>
/**
* This shouldn't exist, but until QTBUG-9328 and other unreported bugs are fixed, it needs to be a thing.
*/
#if defined(Q_OS_LINUX)
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
template <typename T>
bool IndirectOpen(T callable, qint64 *pid_forked = nullptr)
{
auto pid = fork();
if(pid_forked)
{
if(pid > 0)
*pid_forked = pid;
else
*pid_forked = 0;
}
if(pid == -1)
{
qWarning() << "IndirectOpen failed to fork: " << errno;
return false;
}
// child - do the stuff
if(pid == 0)
{
// unset all this garbage so it doesn't get passed to the child process
qunsetenv("LD_PRELOAD");
qunsetenv("LD_LIBRARY_PATH");
qunsetenv("LD_DEBUG");
qunsetenv("QT_PLUGIN_PATH");
qunsetenv("QT_FONTPATH");
// open the URL
auto status = callable();
// detach from the parent process group.
setsid();
// die. now. do not clean up anything, it would just hang forever.
_exit(status ? 0 : 1);
}
else
{
//parent - assume it worked.
int status;
while (waitpid(pid, &status, 0))
{
if(WIFEXITED(status))
{
return WEXITSTATUS(status) == 0;
}
if(WIFSIGNALED(status))
{
return false;
}
}
return true;
}
}
#endif
namespace DesktopServices {
bool openDirectory(const QString &path, bool ensureExists)
{
qDebug() << "Opening directory" << path;
QDir parentPath;
QDir dir(path);
if (!dir.exists())
{
parentPath.mkpath(dir.absolutePath());
}
auto f = [&]()
{
return QDesktopServices::openUrl(QUrl::fromLocalFile(dir.absolutePath()));
};
#if defined(Q_OS_LINUX)
return IndirectOpen(f);
#else
return f();
#endif
}
bool openFile(const QString &path)
{
qDebug() << "Opening file" << path;
auto f = [&]()
{
return QDesktopServices::openUrl(QUrl::fromLocalFile(path));
};
#if defined(Q_OS_LINUX)
return IndirectOpen(f);
#else
return f();
#endif
}
bool openFile(const QString &application, const QString &path, const QString &workingDirectory, qint64 *pid)
{
qDebug() << "Opening file" << path << "using" << application;
#if defined(Q_OS_LINUX)
// FIXME: the pid here is fake. So if something depends on it, it will likely misbehave
return IndirectOpen([&]()
{
return QProcess::startDetached(application, QStringList() << path, workingDirectory);
}, pid);
#else
return QProcess::startDetached(application, QStringList() << path, workingDirectory, pid);
#endif
}
bool run(const QString &application, const QStringList &args, const QString &workingDirectory, qint64 *pid)
{
qDebug() << "Running" << application << "with args" << args.join(' ');
#if defined(Q_OS_LINUX)
// FIXME: the pid here is fake. So if something depends on it, it will likely misbehave
return IndirectOpen([&]()
{
return QProcess::startDetached(application, args, workingDirectory);
}, pid);
#else
return QProcess::startDetached(application, args, workingDirectory, pid);
#endif
}
bool openUrl(const QUrl &url)
{
qDebug() << "Opening URL" << url.toString();
auto f = [&]()
{
return QDesktopServices::openUrl(url);
};
#if defined(Q_OS_LINUX)
return IndirectOpen(f);
#else
return f();
#endif
}
}

37
logic/DesktopServices.h Normal file
View File

@ -0,0 +1,37 @@
#pragma once
#include <QUrl>
#include <QString>
#include "multimc_logic_export.h"
/**
* This wraps around QDesktopServices and adds workarounds where needed
* Use this instead of QDesktopServices!
*/
namespace DesktopServices
{
/**
* Open a file in whatever application is applicable
*/
MULTIMC_LOGIC_EXPORT bool openFile(const QString &path);
/**
* Open a file in the specified application
*/
MULTIMC_LOGIC_EXPORT bool openFile(const QString &application, const QString &path, const QString & workingDirectory = QString(), qint64 *pid = 0);
/**
* Run an application
*/
MULTIMC_LOGIC_EXPORT bool run(const QString &application,const QStringList &args, const QString & workingDirectory = QString(), qint64 *pid = 0);
/**
* Open a directory
*/
MULTIMC_LOGIC_EXPORT bool openDirectory(const QString &path, bool ensureExists = false);
/**
* Open the URL, most likely in a browser. Maybe.
*/
MULTIMC_LOGIC_EXPORT bool openUrl(const QUrl &url);
};

18
logic/FileSystem.cpp
View File

@ -6,8 +6,8 @@
#include <QSaveFile>
#include <QFileInfo>
#include <QDebug>
#include <QDesktopServices>
#include <QUrl>
#include <QStandardPaths>
namespace FS {
@ -304,22 +304,6 @@ QString DirNameFromString(QString string, QString inDir)
return dirName;
}
void openDirInDefaultProgram(QString path, bool ensureExists)
{
QDir parentPath;
QDir dir(path);
if (!dir.exists())
{
parentPath.mkpath(dir.absolutePath());
}
QDesktopServices::openUrl(QUrl::fromLocalFile(dir.absolutePath()));
}
void openFileInDefaultProgram(QString filename)
{
QDesktopServices::openUrl(QUrl::fromLocalFile(filename));
}
// Does the directory path contain any '!'? If yes, return true, otherwise false.
// (This is a problem for Java)
bool checkProblemticPathJava(QDir folder)

6
logic/FileSystem.h
View File

@ -110,12 +110,6 @@ MULTIMC_LOGIC_EXPORT QString RemoveInvalidFilenameChars(QString string, QChar re
MULTIMC_LOGIC_EXPORT QString DirNameFromString(QString string, QString inDir = ".");
/// Opens the given file in the default application.
MULTIMC_LOGIC_EXPORT void openFileInDefaultProgram(QString filename);
/// Opens the given directory in the default application.
MULTIMC_LOGIC_EXPORT void openDirInDefaultProgram(QString dirpath, bool ensureExists = false);
/// Checks if the a given Path contains "!"
MULTIMC_LOGIC_EXPORT bool checkProblemticPathJava(QDir folder);

4
logic/tools/MCEditTool.cpp
View File

@ -2,7 +2,6 @@
#include <QDir>
#include <QProcess>
#include <QDesktopServices>
#include <QUrl>
// FIXME: mixing logic and UI!!!!
#include <QInputDialog>
@ -11,6 +10,7 @@
#include "settings/SettingsObject.h"
#include "BaseInstance.h"
#include "minecraft/MinecraftInstance.h"
#include <DesktopServices.h>
MCEditTool::MCEditTool(SettingsObjectPtr settings, InstancePtr instance, QObject *parent)
: BaseDetachedTool(settings, instance, parent)
@ -84,7 +84,7 @@ void MCEditTool::runImpl()
#endif
if(program.size())
{
QProcess::startDetached(program, QStringList() << save, mceditPath);
DesktopServices::openFile(program, save, mceditPath);
}
#endif
}