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feat: successful process elevation and comunication!

Browse Source 
Signed-off-by: Rachel Powers <508861+Ryex@users.noreply.github.com>
This commit is contained in:
Rachel Powers 2023-02-08 00:35:03 -08:00
parent 32409a361b
commit 6d160a7b7e
9 changed files with 437 additions and 90 deletions
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9
launcher/CMakeLists.txt
View File

@ -562,6 +562,13 @@ set(ATLAUNCHER_SOURCES
set(LINKEXE_SOURCES
filelink/FileLink.h
filelink/FileLink.cpp
FileSystem.h
FileSystem.cpp
Exception.h
StringUtils.h
StringUtils.cpp
DesktopServices.h
DesktopServices.cpp
)
######## Logging categories ########
@ -1126,8 +1133,6 @@ if(WIN32)
Qt${QT_VERSION_MAJOR}::Xml
Qt${QT_VERSION_MAJOR}::Network
Qt${QT_VERSION_MAJOR}::Concurrent
Qt${QT_VERSION_MAJOR}::Gui
Qt${QT_VERSION_MAJOR}::Widgets
${Launcher_QT_LIBS}
)

2
launcher/DesktopServices.cpp
View File

@ -37,7 +37,7 @@
#include <QDesktopServices>
#include <QProcess>
#include <QDebug>
#include "Application.h"
//#include "Application.h"
/**
* This shouldn't exist, but until QTBUG-9328 and other unreported bugs are fixed, it needs to be a thing.

140
launcher/FileSystem.cpp
View File

@ -36,6 +36,8 @@
#include "FileSystem.h"
#include "BuildConfig.h"
#include <QDebug>
#include <QDir>
#include <QDirIterator>
@ -45,6 +47,7 @@
#include <QStandardPaths>
#include <QTextStream>
#include <QUrl>
#include <QtNetwork>
#include "DesktopServices.h"
#include "StringUtils.h"
@ -61,6 +64,11 @@
#include <windows.h>
#include <winnls.h>
#include <string>
//for ShellExecute
#include <shlobj.h>
//#include <shlwapi.h>
#include <objbase.h>
#include <Shellapi.h>
#else
#include <utime.h>
#endif
@ -218,19 +226,29 @@ bool copy::operator()(const QString& offset, bool dryRun)
}
bool create_link::operator()(const QString& offset, bool dryRun)
{
for (auto pair : m_path_pairs) {
if (!make_link(pair.src, pair.dst, offset, dryRun)) {
return false;
}
}
return true;
}
/**
* @brief links a directory and it's contents from src to dest
* @param offset subdirectory form src to link to dest
* @return if there was an error during the attempt to link
*/
bool create_link::operator()(const QString& offset, bool dryRun)
bool create_link::make_link(const QString& srcPath, const QString& dstPath, const QString& offset, bool dryRun)
{
m_linked = 0; // reset counter
auto src = PathCombine(m_src.absolutePath(), offset);
auto dst = PathCombine(m_dst.absolutePath(), offset);
std::error_code err;
auto src = PathCombine(QDir(srcPath).absolutePath(), offset);
auto dst = PathCombine(QDir(dstPath).absolutePath(), offset);
// you can't hard link a directory so make sure if we deal with a directory we do so recursively
if (m_useHardLinks)
@ -248,26 +266,25 @@ bool create_link::operator()(const QString& offset, bool dryRun)
if (m_useHardLinks) {
if (m_debug)
qDebug() << "making hard link:" << src_path << "to" << dst_path;
fs::create_hard_link(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), err);
fs::create_hard_link(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), m_os_err);
} else if (fs::is_directory(StringUtils::toStdString(src_path))) {
if (m_debug)
qDebug() << "making directory_symlink:" << src_path << "to" << dst_path;
fs::create_directory_symlink(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), err);
fs::create_directory_symlink(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), m_os_err);
} else {
if (m_debug)
qDebug() << "making symlink:" << src_path << "to" << dst_path;
fs::create_symlink(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), err);
fs::create_symlink(StringUtils::toStdString(src_path), StringUtils::toStdString(dst_path), m_os_err);
}
}
if (err) {
qWarning() << "Failed to link files:" << QString::fromStdString(err.message());
if (m_os_err) {
qWarning() << "Failed to link files:" << QString::fromStdString(m_os_err.message());
qDebug() << "Source file:" << src_path;
qDebug() << "Destination file:" << dst_path;
qDebug() << "Error catagory:" << err.category().name();
qDebug() << "Error code:" << err.value();
m_last_os_err = err.value();
emit linkFailed(src_path, dst_path, err);
qDebug() << "Error catagory:" << m_os_err.category().name();
qDebug() << "Error code:" << m_os_err.value();
emit linkFailed(src_path, dst_path, m_os_err);
} else {
m_linked++;
emit fileLinked(relative_dst_path);
@ -290,10 +307,103 @@ bool create_link::operator()(const QString& offset, bool dryRun)
auto relative_path = src_dir.relativeFilePath(src_path);
link_file(src_path, relative_path);
if (m_os_err) return false;
}
}
return err.value() == 0;
return m_os_err.value() == 0;
}
bool create_link::runPrivlaged(const QString& offset)
{
QString serverName = BuildConfig.LAUNCHER_APP_BINARY_NAME + "_filelink_server" + StringUtils::getRandomAlphaNumeric(8);
connect(&m_linkServer, &QLocalServer::newConnection, this, [&](){
qDebug() << "Client connected, sending out pairs";
// construct block of data to send
QByteArray block;
QDataStream out(&block, QIODevice::WriteOnly);
out.setVersion(QDataStream::Qt_5_15); // choose correct version better?
qint32 blocksize = quint32(sizeof(quint32));
for (auto pair : m_path_pairs) {
blocksize += quint32(pair.src.size());
blocksize += quint32(pair.dst.size());
}
qDebug() << "About to write block of size:" << blocksize;
out << blocksize;
out << quint32(m_path_pairs.length());
for (auto pair : m_path_pairs) {
out << pair.src;
out << pair.dst;
}
QLocalSocket *clientConnection = m_linkServer.nextPendingConnection();
connect(clientConnection, &QLocalSocket::disconnected,
clientConnection, &QLocalSocket::deleteLater);
qint64 byteswritten = clientConnection->write(block);
bool bytesflushed = clientConnection->flush();
qDebug() << "block flushed" << byteswritten << bytesflushed;
//clientConnection->disconnectFromServer();
});
qDebug() << "Listening on pipe" << serverName;
if (!m_linkServer.listen(serverName)) {
qDebug() << "Unable to start local pipe server on" << serverName << ":" << m_linkServer.errorString();
return false;
}
ExternalLinkFileProcess *linkFileProcess = new ExternalLinkFileProcess(serverName, this);
connect(linkFileProcess, &ExternalLinkFileProcess::processExited, this, [&](){
emit finishedPrivlaged();
});
connect(linkFileProcess, &ExternalLinkFileProcess::finished, linkFileProcess, &QObject::deleteLater);
linkFileProcess->start();
// linkFileProcess->wait();
return true;
}
void ExternalLinkFileProcess::runLinkFile() {
QString fileLinkExe = PathCombine(QCoreApplication::instance()->applicationDirPath(), BuildConfig.LAUNCHER_APP_BINARY_NAME + "_filelink");
QString params = "-s " + m_server;
#if defined Q_OS_WIN32
SHELLEXECUTEINFO ShExecInfo;
HRESULT hr;
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_NORMAL;
ShExecInfo.hInstApp = NULL;
ShellExecuteEx(&ShExecInfo);
WaitForSingleObject(ShExecInfo.hProcess, INFINITE);
CloseHandle(ShExecInfo.hProcess);
#endif
qDebug() << "Process exited";
}
bool move(const QString& source, const QString& dest)

57
launcher/FileSystem.h
View File

@ -39,9 +39,13 @@
#include "Exception.h"
#include "pathmatcher/IPathMatcher.h"
#include <system_error>
#include <QDir>
#include <QFlags>
#include <QObject>
#include <QThread>
#include <QLocalServer>
namespace FS {
@ -124,16 +128,45 @@ class copy : public QObject {
int m_copied;
};
struct LinkPair {
QString src;
QString dst;
};
class ExternalLinkFileProcess : public QThread
{
Q_OBJECT
public:
ExternalLinkFileProcess(QString server, QObject* parent = nullptr) : QThread(parent), m_server(server) {}
void run() override {
runLinkFile();
emit processExited();
}
signals:
void processExited();
private:
void runLinkFile();
QString m_server;
};
/**
* @brief Copies a directory and it's contents from src to dest
* @brief links (a file / a directory and it's contents) from src to dest
*/
class create_link : public QObject {
Q_OBJECT
public:
create_link(const QList<LinkPair> path_pairs, QObject* parent = nullptr) : QObject(parent)
{
m_path_pairs.append(path_pairs);
}
create_link(const QString& src, const QString& dst, QObject* parent = nullptr) : QObject(parent)
{
m_src.setPath(src);
m_dst.setPath(dst);
LinkPair pair = {src, dst};
m_path_pairs.append(pair);
}
create_link& useHardLinks(const bool useHard)
{
@ -161,31 +194,39 @@ class create_link : public QObject {
return *this;
}
int getLastOSError() {
return m_last_os_err;
std::error_code getOSError() {
return m_os_err;
}
bool operator()(bool dryRun = false) { return operator()(QString(), dryRun); }
bool runPrivlaged() { return runPrivlaged(QString()); }
bool runPrivlaged(const QString& offset);
int totalLinked() { return m_linked; }
signals:
void fileLinked(const QString& relativeName);
void linkFailed(const QString& srcName, const QString& dstName, std::error_code err);
void finishedPrivlaged();
private:
bool operator()(const QString& offset, bool dryRun = false);
bool make_link(const QString& src_path, const QString& dst_path, const QString& offset, bool dryRun);
private:
bool m_useHardLinks = false;
const IPathMatcher* m_matcher = nullptr;
bool m_whitelist = false;
bool m_recursive = true;
QDir m_src;
QDir m_dst;
QList<LinkPair> m_path_pairs;
int m_linked;
bool m_debug = false;
int m_last_os_err = 0;
std::error_code m_os_err;
QLocalServer m_linkServer;
};
/**

15
launcher/StringUtils.cpp
View File

@ -1,5 +1,7 @@
#include "StringUtils.h"
#include <QRandomGenerator>
/// If you're wondering where these came from exactly, then know you're not the only one =D
/// TAKEN FROM Qt, because it doesn't expose it intelligently
@ -74,3 +76,16 @@ int StringUtils::naturalCompare(const QString& s1, const QString& s2, Qt::CaseSe
// The two strings are the same (02 == 2) so fall back to the normal sort
return QString::compare(s1, s2, cs);
}
QString StringUtils::getRandomAlphaNumeric(const int length)
{
const QString possibleCharacters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
QString randomString;
for(int i=0; i < length; ++i)
{
int index = QRandomGenerator::global()->bounded(0, possibleCharacters.length());
QChar nextChar = possibleCharacters.at(index);
randomString.append(nextChar);
}
return randomString;
}

2
launcher/StringUtils.h
View File

@ -29,4 +29,6 @@ inline QString fromStdString(string s)
#endif
int naturalCompare(const QString& s1, const QString& s2, Qt::CaseSensitivity cs);
QString getRandomAlphaNumeric(const int length);
} // namespace StringUtils

106
launcher/filelink/FileLink.cpp
View File

@ -31,8 +31,6 @@
#include <QDebug>
#include <FileSystem.h>
#include <DesktopServices.h>
#include <sys.h>
@ -48,7 +46,7 @@
FileLinkApp::FileLinkApp(int &argc, char **argv) : QCoreApplication(argc, argv)
FileLinkApp::FileLinkApp(int &argc, char **argv) : QCoreApplication(argc, argv), socket(new QLocalSocket(this))
{
#if defined Q_OS_WIN32
// attach the parent console
@ -81,18 +79,116 @@ FileLinkApp::FileLinkApp(int &argc, char **argv) : QCoreApplication(argc, argv)
// Commandline parsing
QCommandLineParser parser;
parser.setApplicationDescription(QObject::tr("a batch MKLINK program for windows to be useed with prismlauncher"));
parser.setApplicationDescription(QObject::tr("a batch MKLINK program for windows to be used with prismlauncher"));
parser.addOptions({
{{"s", "server"}, "Join the specified server on launch", "pipe name"}
});
parser.addHelpOption();
parser.addVersionOption();
parser.process(arguments());
QString serverToJoin = parser.value("server");
qDebug() << "link program launched";
if (!serverToJoin.isEmpty()) {
qDebug() << "joining server" << serverToJoin;
joinServer(serverToJoin);
} else {
qDebug() << "no server to join";
exit();
}
}
void FileLinkApp::joinServer(QString server)
{
blockSize = 0;
in.setDevice(&socket);
in.setVersion(QDataStream::Qt_5_15);
connect(&socket, &QLocalSocket::connected, this, [&](){
qDebug() << "connected to server";
});
connect(&socket, &QLocalSocket::readyRead, this, &FileLinkApp::readPathPairs);
connect(&socket, &QLocalSocket::errorOccurred, this, [&](QLocalSocket::LocalSocketError socketError){
switch (socketError) {
case QLocalSocket::ServerNotFoundError:
qDebug() << tr("The host was not found. Please make sure "
"that the server is running and that the "
"server name is correct.");
break;
case QLocalSocket::ConnectionRefusedError:
qDebug() << tr("The connection was refused by the peer. "
"Make sure the server is running, "
"and check that the server name "
"is correct.");
break;
case QLocalSocket::PeerClosedError:
break;
default:
qDebug() << tr("The following error occurred: %1.").arg(socket.errorString());
}
});
connect(&socket, &QLocalSocket::disconnected, this, [&](){
qDebug() << "dissconnected from server";
});
socket.connectToServer(server);
}
void FileLinkApp::runLink()
{
qDebug() << "creating link";
FS::create_link lnk(m_path_pairs);
lnk.debug(true);
if (!lnk()) {
qDebug() << "Link Failed!" << lnk.getOSError().value() << lnk.getOSError().message().c_str();
}
//exit();
qDebug() << "done, should exit";
}
void FileLinkApp::readPathPairs()
{
m_path_pairs.clear();
qDebug() << "Reading path pairs from server";
qDebug() << "bytes avalible" << socket.bytesAvailable();
if (blockSize == 0) {
// Relies on the fact that QDataStream serializes a quint32 into
// sizeof(quint32) bytes
if (socket.bytesAvailable() < (int)sizeof(quint32))
return;
qDebug() << "reading block size";
in >> blockSize;
}
qDebug() << "blocksize is" << blockSize;
qDebug() << "bytes avalible" << socket.bytesAvailable();
if (socket.bytesAvailable() < blockSize || in.atEnd())
return;
quint32 numPairs;
in >> numPairs;
qDebug() << "numPairs" << numPairs;
for(int i = 0; i < numPairs; i++) {
FS::LinkPair pair;
in >> pair.src;
in >> pair.dst;
qDebug() << "link" << pair.src << "to" << pair.dst;
m_path_pairs.append(pair);
}
runLink();
}

15
launcher/filelink/FileLink.h
View File

@ -32,6 +32,11 @@
#include <QDateTime>
#include <QUrl>
#include <QDateTime>
#include <QDataStream>
#include <QLocalSocket>
#define PRISM_EXTERNAL_EXE
#include "FileSystem.h"
class FileLinkApp : public QCoreApplication
{
@ -43,7 +48,17 @@ public:
virtual ~FileLinkApp();
private:
void joinServer(QString server);
void readPathPairs();
void runLink();
QDateTime m_startTime;
QLocalSocket socket;
QDataStream in;
quint32 blockSize;
QList<FS::LinkPair> m_path_pairs;
#if defined Q_OS_WIN32
// used on Windows to attach the standard IO streams

181
tests/FileSystem_test.cpp
View File

@ -2,6 +2,8 @@
#include <QTemporaryDir>
#include <QStandardPaths>
#include <tasks/Task.h>
#include <FileSystem.h>
#include <StringUtils.h>
@ -26,6 +28,66 @@ namespace fs = ghc::filesystem;
#include <pathmatcher/RegexpMatcher.h>
class LinkTask : public Task {
Q_OBJECT
friend class FileSystemTest;
LinkTask(QString src, QString dst)
{
m_lnk = new FS::create_link(src, dst, this);
m_lnk->debug(true);
}
void matcher(const IPathMatcher *filter)
{
m_lnk->matcher(filter);
}
void linkRecursively(bool recursive)
{
m_lnk->linkRecursively(recursive);
m_linkRecursive = recursive;
}
void whitelist(bool b)
{
m_lnk->whitelist(b);
}
private:
void executeTask() override
{
if(!(*m_lnk)()){
#if defined Q_OS_WIN32
if (!m_useHard) {
qDebug() << "EXPECTED: Link failure, Windows requires permissions for symlinks";
qDebug() << "atempting to run with privelage";
connect(m_lnk, &FS::create_link::finishedPrivlaged, this, [&](){
emitSucceeded();
});
m_lnk->runPrivlaged();
} else {
qDebug() << "Link Failed!" << m_lnk->getOSError().value() << m_lnk->getOSError().message().c_str();
}
#else
qDebug() << "Link Failed!" << m_lnk->getOSError().value() << m_lnk->getOSError().message().c_str();
#endif
} else {
emitSucceeded();
}
};
FS::create_link *m_lnk;
bool m_useHard = false;
bool m_linkRecursive = true;
};
class FileSystemTest : public QObject
{
Q_OBJECT
@ -273,7 +335,7 @@ slots:
void test_link()
{
QString folder = QFINDTESTDATA("testdata/FileSystem/test_folder");
auto f = [&folder]()
auto f = [&folder, this]()
{
QTemporaryDir tempDir;
tempDir.setAutoRemove(true);
@ -282,17 +344,17 @@ slots:
QDir target_dir(FS::PathCombine(tempDir.path(), "test_folder"));
qDebug() << tempDir.path();
qDebug() << target_dir.path();
FS::create_link lnk(folder, target_dir.path());
lnk.linkRecursively(false);
lnk.debug(true);
if(!lnk()){
#if defined Q_OS_WIN32
qDebug() << "EXPECTED: Link failure, Windows requires permissions for symlinks";
QVERIFY(lnk.getLastOSError() == 1314);
return;
#endif
qDebug() << "Link Failed!" << lnk.getLastOSError();
}
LinkTask lnk_tsk(folder, target_dir.path());
lnk_tsk.linkRecursively(false);
QObject::connect(&lnk_tsk, &Task::finished, [&]{
QVERIFY2(lnk_tsk.wasSuccessful(), "Task finished but was not successful when it should have been.");
});
lnk_tsk.start();
QVERIFY2(QTest::qWaitFor([&]() {
return lnk_tsk.isFinished();
}, 100000), "Task didn't finish as it should.");
for(auto entry: target_dir.entryList())
{
@ -337,7 +399,7 @@ slots:
lnk.useHardLinks(true);
lnk.debug(true);
if(!lnk()){
qDebug() << "Link Failed!" << lnk.getLastOSError();
qDebug() << "Link Failed!" << lnk.getOSError().value() << lnk.getOSError().message().c_str();
}
for(auto entry: target_dir.entryList())
@ -385,18 +447,19 @@ slots:
QDir target_dir(FS::PathCombine(tempDir.path(), "test_folder"));
qDebug() << tempDir.path();
qDebug() << target_dir.path();
FS::create_link lnk(folder, target_dir.path());
lnk.matcher(new RegexpMatcher("[.]?mcmeta"));
lnk.linkRecursively(true);
lnk.debug(true);
if(!lnk()){
#if defined Q_OS_WIN32
qDebug() << "EXPECTED: Link failure, Windows requires permissions for symlinks";
QVERIFY(lnk.getLastOSError() == 1314);
return;
#endif
qDebug() << "Link Failed!" << lnk.getLastOSError();
}
LinkTask lnk_tsk(folder, target_dir.path());
lnk_tsk.matcher(new RegexpMatcher("[.]?mcmeta"));
lnk_tsk.linkRecursively(true);
QObject::connect(&lnk_tsk, &Task::finished, [&]{
QVERIFY2(lnk_tsk.wasSuccessful(), "Task finished but was not successful when it should have been.");
});
lnk_tsk.start();
QVERIFY2(QTest::qWaitFor([&]() {
return lnk_tsk.isFinished();
}, 100000), "Task didn't finish as it should.");
for(auto entry: target_dir.entryList())
{
@ -435,19 +498,19 @@ slots:
QDir target_dir(FS::PathCombine(tempDir.path(), "test_folder"));
qDebug() << tempDir.path();
qDebug() << target_dir.path();
FS::create_link lnk(folder, target_dir.path());
lnk.matcher(new RegexpMatcher("[.]?mcmeta"));
lnk.whitelist(true);
lnk.linkRecursively(true);
lnk.debug(true);
if(!lnk()){
#if defined Q_OS_WIN32
qDebug() << "EXPECTED: Link failure, Windows requires permissions for symlinks";
QVERIFY(lnk.getLastOSError() == 1314);
return;
#endif
qDebug() << "Link Failed!" << lnk.getLastOSError();
}
LinkTask lnk_tsk(folder, target_dir.path());
lnk_tsk.matcher(new RegexpMatcher("[.]?mcmeta"));
lnk_tsk.linkRecursively(true);
lnk_tsk.whitelist(true);
QObject::connect(&lnk_tsk, &Task::finished, [&]{
QVERIFY2(lnk_tsk.wasSuccessful(), "Task finished but was not successful when it should have been.");
});
lnk_tsk.start();
QVERIFY2(QTest::qWaitFor([&]() {
return lnk_tsk.isFinished();
}, 100000), "Task didn't finish as it should.");
for(auto entry: target_dir.entryList())
{
@ -486,17 +549,17 @@ slots:
QDir target_dir(FS::PathCombine(tempDir.path(), "test_folder"));
qDebug() << tempDir.path();
qDebug() << target_dir.path();
FS::create_link lnk(folder, target_dir.path());
lnk.linkRecursively(true);
lnk.debug(true);
if(!lnk()){
#if defined Q_OS_WIN32
qDebug() << "EXPECTED: Link failure, Windows requires permissions for symlinks";
QVERIFY(lnk.getLastOSError() == 1314);
return;
#endif
qDebug() << "Link Failed!" << lnk.getLastOSError();
}
LinkTask lnk_tsk(folder, target_dir.path());
lnk_tsk.linkRecursively(true);
QObject::connect(&lnk_tsk, &Task::finished, [&]{
QVERIFY2(lnk_tsk.wasSuccessful(), "Task finished but was not successful when it should have been.");
});
lnk_tsk.start();
QVERIFY2(QTest::qWaitFor([&]() {
return lnk_tsk.isFinished();
}, 100000), "Task didn't finish as it should.");
auto filter = QDir::Filter::Files | QDir::Filter::Dirs | QDir::Filter::Hidden;
@ -538,16 +601,16 @@ slots:
QDir target_dir(FS::PathCombine(tempDir.path(), "pack.mcmeta"));
qDebug() << tempDir.path();
qDebug() << target_dir.path();
FS::create_link lnk(file, target_dir.filePath("pack.mcmeta"));
lnk.debug(true);
if(!lnk()){
#if defined Q_OS_WIN32
qDebug() << "EXPECTED: Link failure, Windows requires permissions for symlinks";
QVERIFY(lnk.getLastOSError() == 1314);
return;
#endif
qDebug() << "Link Failed!" << lnk.getLastOSError();
}
LinkTask lnk_tsk(file, target_dir.filePath("pack.mcmeta"));
QObject::connect(&lnk_tsk, &Task::finished, [&]{
QVERIFY2(lnk_tsk.wasSuccessful(), "Task finished but was not successful when it should have been.");
});
lnk_tsk.start();
QVERIFY2(QTest::qWaitFor([&]() {
return lnk_tsk.isFinished();
}, 100000), "Task didn't finish as it should.");
auto filter = QDir::Filter::Files;