diff options
Diffstat (limited to 'launcher/minecraft/launch/LauncherPartLaunch.cpp')
| -rw-r--r-- | launcher/minecraft/launch/LauncherPartLaunch.cpp | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/launcher/minecraft/launch/LauncherPartLaunch.cpp b/launcher/minecraft/launch/LauncherPartLaunch.cpp new file mode 100644 index 00000000..ee469770 --- /dev/null +++ b/launcher/minecraft/launch/LauncherPartLaunch.cpp @@ -0,0 +1,218 @@ +/* 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 "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, m_serverToJoin); + 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()) + { + const char *reason = QT_TR_NOOP("The wrapper command \"%1\" couldn't be found."); + emit logLine(QString(reason).arg(wrapperCommand), MessageLevel::Fatal); + emitFailed(tr(reason).arg(wrapperCommand)); + 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 + const char *reason = QT_TR_NOOP("Could not launch minecraft!"); + emit logLine(reason, MessageLevel::Fatal); + emitFailed(tr(reason)); + return; + } + case LoggedProcess::Aborted: + case LoggedProcess::Crashed: + { + m_parent->setPid(-1); + emitFailed(tr("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(tr("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(QString("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; +} |