1 files changed, 248 insertions, 0 deletions
diff --git a/libmultimc/src/minecraftprocess.cpp b/libmultimc/src/minecraftprocess.cpp
new file mode 100644
index 00000000..943d76b1
--- /dev/null
+++ b/libmultimc/src/minecraftprocess.cpp
@@ -0,0 +1,248 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Authors: Orochimarufan <orochimarufan.x3@gmail.com>
+ *
+ * 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 "minecraftprocess.h"
+
+#include <QDataStream>
+#include <QFile>
+#include <QDir>
+//#include <QImage>
+#include <QProcessEnvironment>
+
+#include "instance.h"
+
+#include "osutils.h"
+#include "pathutils.h"
+
+#define LAUNCHER_FILE "MultiMCLauncher.jar"
+#define IBUS "@im=ibus"
+
+// commandline splitter
+QStringList MinecraftProcess::splitArgs(QString args)
+{
+	QStringList argv;
+	QString current;
+	bool escape = false;
+	QChar inquotes;
+	for (int i=0; i<args.length(); i++)
+	{
+		QChar cchar = args.at(i);
+		
+		// \ escaped
+		if (escape) {
+			current += cchar;
+			escape = false;
+			// in "quotes"
+		} else if (!inquotes.isNull()) {
+			if (cchar == 0x5C)
+				escape = true;
+			else if (cchar == inquotes)
+				inquotes = 0;
+			else
+				current += cchar;
+			// otherwise
+		} else {
+			if (cchar == 0x20) {
+				if (!current.isEmpty()) {
+					argv << current;
+					current.clear();
+				}
+			} else if (cchar == 0x22 || cchar == 0x27)
+				inquotes = cchar;
+			else
+				current += cchar;
+		}
+	}
+	if (!current.isEmpty())
+		argv << current;
+	return argv;
+}
+
+// prepare tools
+inline void MinecraftProcess::extractIcon(InstancePtr inst, QString destination)
+{
+//	QImage(":/icons/instances/" + inst->iconKey()).save(destination);
+}
+
+inline void MinecraftProcess::extractLauncher(QString destination)
+{
+	QFile(":/launcher/launcher.jar").copy(destination);
+}
+
+void MinecraftProcess::prepare(InstancePtr inst)
+{
+	extractLauncher(PathCombine(inst->minecraftDir(), LAUNCHER_FILE));
+	extractIcon(inst, PathCombine(inst->minecraftDir(), "icon.png"));
+}
+
+// constructor
+MinecraftProcess::MinecraftProcess(InstancePtr inst, QString user, QString session) :
+	m_instance(inst), m_user(user), m_session(session)
+{
+	connect(this, SIGNAL(finished(int, QProcess::ExitStatus)), SLOT(finish(int, QProcess::ExitStatus)));
+	
+	// prepare the process environment
+	QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+	
+#ifdef LINUX
+	// Strip IBus
+	if (env.value("XMODIFIERS").contains(IBUS))
+		env.insert("XMODIFIERS", env.value("XMODIFIERS").replace(IBUS, ""));
+#endif
+	
+	// export some infos
+	env.insert("INST_NAME", inst->name());
+	env.insert("INST_ID", inst->id());
+	env.insert("INST_DIR", QDir(inst->rootDir()).absolutePath());
+	
+	this->setProcessEnvironment(env);
+	m_prepostlaunchprocess.setProcessEnvironment(env);
+	
+	// set the cwd
+	QDir mcDir(inst->minecraftDir());
+	this->setWorkingDirectory(mcDir.absolutePath());
+	m_prepostlaunchprocess.setWorkingDirectory(mcDir.absolutePath());
+	
+	// std channels
+	connect(this, SIGNAL(readyReadStandardError()), SLOT(on_stdErr()));
+	connect(this, SIGNAL(readyReadStandardOutput()), SLOT(on_stdOut()));
+}
+
+// console window
+void MinecraftProcess::on_stdErr()
+{
+//	if (m_console != nullptr)
+//		m_console->write(readAllStandardError(), ConsoleWindow::ERROR);
+}
+
+void MinecraftProcess::on_stdOut()
+{
+//	if (m_console != nullptr)
+//		m_console->write(readAllStandardOutput(), ConsoleWindow::DEFAULT);
+}
+
+void MinecraftProcess::log(QString text)
+{
+//	if (m_console != nullptr)
+//		m_console->write(text);
+//	else
+		qDebug(qPrintable(text));
+}
+
+// exit handler
+void MinecraftProcess::finish(int code, ExitStatus status)
+{
+	if (status != NormalExit)
+	{
+		//TODO: error handling
+	}
+	
+	log("Minecraft exited.");
+	
+	m_prepostlaunchprocess.processEnvironment().insert("INST_EXITCODE", QString(code));
+	
+	// run post-exit
+	if (!m_instance->settings().get("PostExitCommand").toString().isEmpty())
+	{
+		m_prepostlaunchprocess.start(m_instance->settings().get("PostExitCommand").toString());
+		m_prepostlaunchprocess.waitForFinished();
+		if (m_prepostlaunchprocess.exitStatus() != NormalExit)
+		{
+			//TODO: error handling
+		}
+	}
+	
+//	if (m_console != nullptr)
+//		m_console->setMayClose(true);
+	
+	emit ended();
+}
+
+void MinecraftProcess::launch()
+{
+	if (!m_instance->settings().get("PreLaunchCommand").toString().isEmpty())
+	{
+		m_prepostlaunchprocess.start(m_instance->settings().get("PreLaunchCommand").toString());
+		m_prepostlaunchprocess.waitForFinished();
+		if (m_prepostlaunchprocess.exitStatus() != NormalExit)
+		{
+			//TODO: error handling
+			return;
+		}
+	}
+	
+	m_instance->setLastLaunch();
+	
+	prepare(m_instance);
+	
+	genArgs();
+	
+	log(QString("Minecraft folder is: '%1'").arg(workingDirectory()));
+	log(QString("Instance launched with arguments: '%1'").arg(m_arguments.join("' '")));
+	
+	start(m_instance->settings().get("JavaPath").toString(), m_arguments);
+	if (!waitForStarted())
+	{
+		//TODO: error handling
+	}
+	
+//	if(m_console != nullptr)
+//		m_console->setMayClose(false);
+}
+
+void MinecraftProcess::genArgs()
+{
+	// start fresh
+	m_arguments.clear();
+	
+	// window size
+	QString windowSize;
+	if (m_instance->settings().get("LaunchMaximized").toBool())
+		windowSize = "max";
+	else
+		windowSize = QString("%1x%2").
+				arg(m_instance->settings().get("MinecraftWinWidth").toInt()).
+				arg(m_instance->settings().get("MinecraftWinHeight").toInt());
+	
+	// window title
+	QString windowTitle;
+	windowTitle.append("MultiMC: ").append(m_instance->name());
+	
+	// Java arguments
+	m_arguments.append(splitArgs(m_instance->settings().get("JvmArgs").toString()));
+	
+#ifdef OSX
+	// OSX dock icon and name
+	m_arguments << "-Xdock:icon=icon.png";
+	m_arguments << QString("-Xdock:name=\"%1\"").arg(windowTitle);
+#endif
+	
+	// lwjgl
+	QString lwjgl = m_instance->lwjglVersion();
+	if (lwjgl != "Mojang")
+		lwjgl = QDir(globalSettings->get("LWJGLDir").toString() + "/" + lwjgl).absolutePath();
+	
+	// launcher arguments
+	m_arguments << QString("-Xms%1m").arg(m_instance->settings().get("MinMemAlloc").toInt());
+	m_arguments << QString("-Xmx%1m").arg(m_instance->settings().get("MaxMemAlloc").toInt());
+	m_arguments << "-jar" << LAUNCHER_FILE;
+	m_arguments << m_user;
+	m_arguments << m_session;
+	m_arguments << windowTitle;
+	m_arguments << windowSize;
+	m_arguments << lwjgl;
+}