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// SPDX-License-Identifier: GPL-3.0-only
/*
* PolyMC - Minecraft Launcher
* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
*
* 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/>.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2013-2021 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "JavaChecker.h"
#include <QFile>
#include <QProcess>
#include <QMap>
#include <QDebug>
#include "JavaUtils.h"
#include "FileSystem.h"
#include "Commandline.h"
#include "Application.h"
JavaChecker::JavaChecker(QObject *parent) : QObject(parent)
{
}
void JavaChecker::performCheck()
{
QString checkerJar = JavaUtils::getJavaCheckPath();
if (checkerJar.isEmpty())
{
qDebug() << "Java checker library could not be found. Please check your installation.";
return;
}
QStringList args;
process.reset(new QProcess());
if(m_args.size())
{
auto extraArgs = Commandline::splitArgs(m_args);
args.append(extraArgs);
}
if(m_minMem != 0)
{
args << QString("-Xms%1m").arg(m_minMem);
}
if(m_maxMem != 0)
{
args << QString("-Xmx%1m").arg(m_maxMem);
}
if(m_permGen != 64)
{
args << QString("-XX:PermSize=%1m").arg(m_permGen);
}
args.append({"-jar", checkerJar});
process->setArguments(args);
process->setProgram(m_path);
process->setProcessChannelMode(QProcess::SeparateChannels);
process->setProcessEnvironment(CleanEnviroment());
qDebug() << "Running java checker:" << m_path << args.join(" ");
connect(process.get(), QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished), this, &JavaChecker::finished);
connect(process.get(), &QProcess::errorOccurred, this, &JavaChecker::error);
connect(process.get(), &QProcess::readyReadStandardOutput, this, &JavaChecker::stdoutReady);
connect(process.get(), &QProcess::readyReadStandardError, this, &JavaChecker::stderrReady);
connect(&killTimer, &QTimer::timeout, this, &JavaChecker::timeout);
killTimer.setSingleShot(true);
killTimer.start(15000);
process->start();
}
void JavaChecker::stdoutReady()
{
QByteArray data = process->readAllStandardOutput();
QString added = QString::fromLocal8Bit(data);
added.remove('\r');
m_stdout += added;
}
void JavaChecker::stderrReady()
{
QByteArray data = process->readAllStandardError();
QString added = QString::fromLocal8Bit(data);
added.remove('\r');
m_stderr += added;
}
void JavaChecker::finished(int exitcode, QProcess::ExitStatus status)
{
killTimer.stop();
QProcessPtr _process = process;
process.reset();
JavaCheckResult result;
{
result.path = m_path;
result.id = m_id;
}
result.errorLog = m_stderr;
result.outLog = m_stdout;
qDebug() << "STDOUT" << m_stdout;
qWarning() << "STDERR" << m_stderr;
qDebug() << "Java checker finished with status" << status << "exit code" << exitcode;
if (status == QProcess::CrashExit || exitcode == 1)
{
result.validity = JavaCheckResult::Validity::Errored;
emit checkFinished(result);
return;
}
bool success = true;
QMap<QString, QString> results;
#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
QStringList lines = m_stdout.split("\n", Qt::SkipEmptyParts);
#else
QStringList lines = m_stdout.split("\n", QString::SkipEmptyParts);
#endif
for(QString line : lines)
{
line = line.trimmed();
// NOTE: workaround for GH-4125, where garbage is getting printed into stdout on bedrock linux
if (line.contains("/bedrock/strata")) {
continue;
}
#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
auto parts = line.split('=', Qt::SkipEmptyParts);
#else
auto parts = line.split('=', QString::SkipEmptyParts);
#endif
if(parts.size() != 2 || parts[0].isEmpty() || parts[1].isEmpty())
{
continue;
}
else
{
results.insert(parts[0], parts[1]);
}
}
if(!results.contains("os.arch") || !results.contains("java.version") || !results.contains("java.vendor") || !success)
{
result.validity = JavaCheckResult::Validity::ReturnedInvalidData;
emit checkFinished(result);
return;
}
auto os_arch = results["os.arch"];
auto java_version = results["java.version"];
auto java_vendor = results["java.vendor"];
bool is_64 = os_arch == "x86_64" || os_arch == "amd64" || os_arch == "aarch64" || os_arch == "arm64";
result.validity = JavaCheckResult::Validity::Valid;
result.is_64bit = is_64;
result.mojangPlatform = is_64 ? "64" : "32";
result.realPlatform = os_arch;
result.javaVersion = java_version;
result.javaVendor = java_vendor;
qDebug() << "Java checker succeeded.";
emit checkFinished(result);
}
void JavaChecker::error(QProcess::ProcessError err)
{
if(err == QProcess::FailedToStart)
{
qDebug() << "Java checker has failed to start.";
qDebug() << "Process environment:";
qDebug() << process->environment();
qDebug() << "Native environment:";
qDebug() << QProcessEnvironment::systemEnvironment().toStringList();
killTimer.stop();
JavaCheckResult result;
{
result.path = m_path;
result.id = m_id;
}
emit checkFinished(result);
return;
}
}
void JavaChecker::timeout()
{
// NO MERCY. NO ABUSE.
if(process)
{
qDebug() << "Java checker has been killed by timeout.";
process->kill();
}
}
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