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/* Copyright 2013-2017 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 "LauncherPartLaunch.h"
#include <QCoreApplication>
#include <launch/LaunchTask.h>
#include <minecraft/MinecraftInstance.h>
#include <FileSystem.h>
#include <Commandline.h>
#include <QStandardPaths>
#include "Env.h"
LauncherPartLaunch::LauncherPartLaunch(LaunchTask *parent) : LaunchStep(parent)
{
connect(&m_process, &LoggedProcess::log, this, &LauncherPartLaunch::logLines);
connect(&m_process, &LoggedProcess::stateChanged, this, &LauncherPartLaunch::on_state);
}
#ifdef Q_OS_WIN
// returns 8.3 file format from long path
#include <windows.h>
QString shortPathName(const QString & file)
{
auto input = file.toStdWString();
std::wstring output;
long length = GetShortPathNameW(input.c_str(), NULL, 0);
// NOTE: this resizing might seem weird...
// when GetShortPathNameW fails, it returns length including null character
// when it succeeds, it returns length excluding null character
// See: https://msdn.microsoft.com/en-us/library/windows/desktop/aa364989(v=vs.85).aspx
output.resize(length);
GetShortPathNameW(input.c_str(),(LPWSTR)output.c_str(),length);
output.resize(length-1);
QString ret = QString::fromStdWString(output);
return ret;
}
#endif
// if the string survives roundtrip through local 8bit encoding...
bool fitsInLocal8bit(const QString & string)
{
return string == QString::fromLocal8Bit(string.toLocal8Bit());
}
void LauncherPartLaunch::executeTask()
{
auto instance = m_parent->instance();
std::shared_ptr<MinecraftInstance> minecraftInstance = std::dynamic_pointer_cast<MinecraftInstance>(instance);
m_launchScript = minecraftInstance->createLaunchScript(m_session);
QStringList args = minecraftInstance->javaArguments();
QString allArgs = args.join(", ");
emit logLine("Java Arguments:\n[" + m_parent->censorPrivateInfo(allArgs) + "]\n\n", MessageLevel::MultiMC);
auto javaPath = FS::ResolveExecutable(instance->settings()->get("JavaPath").toString());
m_process.setProcessEnvironment(instance->createEnvironment());
// make detachable - this will keep the process running even if the object is destroyed
m_process.setDetachable(true);
auto classPath = minecraftInstance->getClassPath();
classPath.prepend(FS::PathCombine(ENV.getJarsPath(), "NewLaunch.jar"));
auto natPath = minecraftInstance->getNativePath();
#ifdef Q_OS_WIN
if (!fitsInLocal8bit(natPath))
{
args << "-Djava.library.path=" + shortPathName(natPath);
}
else
{
args << "-Djava.library.path=" + natPath;
}
#else
args << "-Djava.library.path=" + natPath;
#endif
args << "-cp";
#ifdef Q_OS_WIN
QStringList processed;
for(auto & item: classPath)
{
if (!fitsInLocal8bit(item))
{
processed << shortPathName(item);
}
else
{
processed << item;
}
}
args << processed.join(';');
#else
args << classPath.join(':');
#endif
args << "org.multimc.EntryPoint";
qDebug() << args.join(' ');
QString wrapperCommandStr = instance->getWrapperCommand().trimmed();
if(!wrapperCommandStr.isEmpty())
{
auto wrapperArgs = Commandline::splitArgs(wrapperCommandStr);
auto wrapperCommand = wrapperArgs.takeFirst();
auto realWrapperCommand = QStandardPaths::findExecutable(wrapperCommand);
if (realWrapperCommand.isEmpty())
{
QString reason = tr("The wrapper command \"%1\" couldn't be found.").arg(wrapperCommand);
emit logLine(reason, MessageLevel::Fatal);
emitFailed(reason);
return;
}
emit logLine("Wrapper command is:\n" + wrapperCommandStr + "\n\n", MessageLevel::MultiMC);
args.prepend(javaPath);
m_process.start(wrapperCommand, wrapperArgs + args);
}
else
{
m_process.start(javaPath, args);
}
}
void LauncherPartLaunch::on_state(LoggedProcess::State state)
{
switch(state)
{
case LoggedProcess::FailedToStart:
{
//: Error message displayed if instace can't start
QString reason = tr("Could not launch minecraft!");
emit logLine(reason, MessageLevel::Fatal);
emitFailed(reason);
return;
}
case LoggedProcess::Aborted:
case LoggedProcess::Crashed:
{
m_parent->setPid(-1);
emitFailed("Game crashed.");
return;
}
case LoggedProcess::Finished:
{
m_parent->setPid(-1);
// if the exit code wasn't 0, report this as a crash
auto exitCode = m_process.exitCode();
if(exitCode != 0)
{
emitFailed("Game crashed.");
return;
}
//FIXME: make this work again
// m_postlaunchprocess.processEnvironment().insert("INST_EXITCODE", QString(exitCode));
// run post-exit
emitSucceeded();
break;
}
case LoggedProcess::Running:
emit logLine(tr("Minecraft process ID: %1\n\n").arg(m_process.processId()), MessageLevel::MultiMC);
m_parent->setPid(m_process.processId());
m_parent->instance()->setLastLaunch();
// send the launch script to the launcher part
m_process.write(m_launchScript.toUtf8());
mayProceed = true;
emit readyForLaunch();
break;
default:
break;
}
}
void LauncherPartLaunch::setWorkingDirectory(const QString &wd)
{
m_process.setWorkingDirectory(wd);
}
void LauncherPartLaunch::proceed()
{
if(mayProceed)
{
QString launchString("launch\n");
m_process.write(launchString.toUtf8());
mayProceed = false;
}
}
bool LauncherPartLaunch::abort()
{
if(mayProceed)
{
mayProceed = false;
QString launchString("abort\n");
m_process.write(launchString.toUtf8());
}
else
{
auto state = m_process.state();
if (state == LoggedProcess::Running || state == LoggedProcess::Starting)
{
m_process.kill();
}
}
return true;
}
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