Errr... I forgot.

19 files changed, 269 insertions, 382 deletions

diff --git a/backend/BaseInstance.h b/backend/BaseInstance.h
index 088075f2..1bb2ce17 100644
--- a/backend/BaseInstance.h
+++ b/backend/BaseInstance.h
@@ -57,42 +57,20 @@ public:
 	/// Path to the instance's root directory.
 	QString rootDir() const;
 	
-	/*!
-	 * \brief Gets the instance list that this instance is a part of. 
-	 *        Returns NULL if this instance is not in a list 
-	 *        (the parent is not an InstanceList).
-	 * \return A pointer to the InstanceList containing this instance. 
-	 */
-	InstanceList *instList() const;
-	
-	
-	//////// INSTANCE INFO ////////
-	
-	/// The name of the instance that is displayed to the user.
 	QString name() const;
-	
-	/// Set the name of the instance that is displayed to the user.
 	void setName(QString val);
 	
-	/// The instance's icon key.
 	QString iconKey() const;
-	
-	/// Set the instance's icon key.
 	void setIconKey(QString val);
 	
-	//! The instance's notes.
 	QString notes() const;
-	
-	/// set the instance notes text
 	void setNotes(QString val);
 	
-	//! The instance's group.
 	QString group() const;
-	
-	/// set the instance group
 	void setGroup(QString val);
 	
-	//// Timestamps ////
+	virtual bool setIntendedVersionId(QString version) = 0;
+	virtual QString intendedVersionId() = 0;
 	
 	/**
 	 * Gets the time that the instance was last launched.
@@ -102,6 +80,13 @@ public:
 	/// Sets the last launched time to 'val' milliseconds since epoch
 	void setLastLaunch(qint64 val = QDateTime::currentMSecsSinceEpoch());
 	
+	/*!
+	 * \brief Gets the instance list that this instance is a part of. 
+	 *        Returns NULL if this instance is not in a list 
+	 *        (the parent is not an InstanceList).
+	 * \return A pointer to the InstanceList containing this instance. 
+	 */
+	InstanceList *instList() const;
 	
 	/*!
 	 * \brief Gets a pointer to this instance's version list.
diff --git a/backend/CMakeLists.txt b/backend/CMakeLists.txt
index 9bd07c01..f79ef8ef 100644
--- a/backend/CMakeLists.txt
+++ b/backend/CMakeLists.txt
@@ -26,6 +26,8 @@ LegacyInstance.h
 OneSixInstance.h
 InstanceFactory.h
 
+OneSixAssets.h
+
 # Versions
 InstanceVersion.h
 MinecraftVersion.h
@@ -41,9 +43,8 @@ lists/LwjglVersionList.h
 # Tasks
 tasks/Task.h
 tasks/LoginTask.h
-tasks/LoginResponse.h
-tasks/UserInfo.h
 tasks/GameUpdateTask.h
+tasks/UserInfo.h
 
 MinecraftProcess.h
 )
@@ -55,6 +56,8 @@ LegacyInstance.cpp
 OneSixInstance.cpp
 InstanceFactory.cpp
 
+OneSixAssets.cpp
+
 # Versions
 InstanceVersion.cpp
 MinecraftVersion.cpp
@@ -72,7 +75,6 @@ tasks/Task.cpp
 tasks/LoginTask.cpp
 tasks/GameUpdateTask.cpp
 tasks/UserInfo.cpp
-tasks/LoginResponse.cpp
 
 MinecraftProcess.cpp
 )
diff --git a/backend/InstanceFactory.cpp b/backend/InstanceFactory.cpp
index ee582d3f..f3636da3 100644
--- a/backend/InstanceFactory.cpp
+++ b/backend/InstanceFactory.cpp
@@ -21,6 +21,7 @@
 #include "BaseInstance.h"
 #include "LegacyInstance.h"
 #include "OneSixInstance.h"
+#include "InstanceVersion.h"
 
 #include "inifile.h"
 #include <inisettingsobject.h>
@@ -61,7 +62,7 @@ InstanceFactory::InstLoadError InstanceFactory::loadInstance(BaseInstance *&inst
 }
 
 
-InstanceFactory::InstCreateError InstanceFactory::createInstance(BaseInstance *&inst, const QString &instDir)
+InstanceFactory::InstCreateError InstanceFactory::createInstance( BaseInstance*& inst, const InstVersion* version, const QString& instDir )
 {
 	QDir rootDir(instDir);
 	
@@ -70,9 +71,14 @@ InstanceFactory::InstCreateError InstanceFactory::createInstance(BaseInstance *&
 	{
 		return InstanceFactory::CantCreateDir;
 	}
-	return InstanceFactory::UnknownCreateError;
-	//inst = new BaseInstance(instDir, this);
 	
+	auto m_settings = new INISettingsObject(PathCombine(instDir, "instance.cfg"));
+	m_settings->registerSetting(new Setting("InstanceType", "Legacy"));
+	m_settings->set("InstanceType", "OneSix");
+	
+	inst = new OneSixInstance(instDir, m_settings, this);
+	inst->setIntendedVersionId(version->descriptor());
+
 	//FIXME: really, how do you even know?
 	return InstanceFactory::NoCreateError;
 }
diff --git a/backend/InstanceFactory.h b/backend/InstanceFactory.h
index 26857ef9..12139e7d 100644
--- a/backend/InstanceFactory.h
+++ b/backend/InstanceFactory.h
@@ -21,6 +21,7 @@
 
 #include "libmmc_config.h"
 
+class InstVersion;
 class BaseInstance;
 
 /*!
@@ -59,7 +60,7 @@ public:
 	 * - InstExists if the given instance directory is already an instance.
 	 * - CantCreateDir if the given instance directory cannot be created.
 	 */
-	InstCreateError createInstance(BaseInstance *&inst, const QString &instDir);
+	InstCreateError createInstance(BaseInstance *&inst, const InstVersion * version, const QString &instDir);
 	
 	/*!
 	 * \brief Loads an instance from the given directory.
diff --git a/backend/LegacyInstance.cpp b/backend/LegacyInstance.cpp
index 001400e5..b4031eb1 100644
--- a/backend/LegacyInstance.cpp
+++ b/backend/LegacyInstance.cpp
@@ -206,28 +206,36 @@ void LegacyInstance::setLWJGLVersion ( QString val )
 	I_D(LegacyInstance);
 	d->m_settings->set ( "LwjglVersion", val );
 }
-QString LegacyInstance::intendedVersion() const
+QString LegacyInstance::intendedVersionId()
 {
 	I_D(LegacyInstance);
 	return d->m_settings->get ( "IntendedJarVersion" ).toString();
 }
-void LegacyInstance::setIntendedVersion ( QString val )
+bool LegacyInstance::setIntendedVersionId ( QString version )
 {
+	/*
 	I_D(LegacyInstance);
 	d->m_settings->set ( "IntendedJarVersion", val );
+	*/
+	return false;
 }
 bool LegacyInstance::shouldUpdate() const
 {
+	/*
 	I_D(LegacyInstance);
 	QVariant var = d->m_settings->get ( "ShouldUpdate" );
 	if ( !var.isValid() || var.toBool() == false )
 	{
-		return intendedVersion() != currentVersion();
+		return intendedVersionId() != currentVersion();
 	}
 	return true;
+	*/
+	return false;
 }
 void LegacyInstance::setShouldUpdate ( bool val )
 {
+	/*
 	I_D(LegacyInstance);
 	d->m_settings->set ( "ShouldUpdate", val );
+	*/
 }
diff --git a/backend/LegacyInstance.h b/backend/LegacyInstance.h
index ef449b79..64b7b40a 100644
--- a/backend/LegacyInstance.h
+++ b/backend/LegacyInstance.h
@@ -84,8 +84,8 @@ public:
 	 * If this is not the same as currentVersion, the instance's game updater
 	 * will be run on launch.
 	 */
-	QString intendedVersion() const;
-	void setIntendedVersion(QString val);
+	virtual QString intendedVersionId();
+	virtual bool setIntendedVersionId ( QString version );
 	
 	/*!
 	 * Whether or not Minecraft should be downloaded when the instance is launched.
diff --git a/backend/OneSixAssets.cpp b/backend/OneSixAssets.cpp
new file mode 100644
index 00000000..e2894bdd
--- /dev/null
+++ b/backend/OneSixAssets.cpp
@@ -0,0 +1,157 @@
+#include <QString>
+#include <QDebug>
+#include <QtXml/QtXml>
+#include "OneSixAssets.h"
+#include "dlqueue.h"
+
+inline QDomElement getDomElementByTagName(QDomElement parent, QString tagname)
+{
+	QDomNodeList elementList = parent.elementsByTagName(tagname);
+	if (elementList.count())
+		return elementList.at(0).toElement();
+	else
+		return QDomElement();
+}
+
+class ThreadedDeleter : public QThread
+{
+	Q_OBJECT
+public:
+	void run()
+	{
+		QDirIterator iter(m_base, QDirIterator::Subdirectories);
+		QStringList nuke_list;
+		int base_length = m_base.length();
+		while (iter.hasNext())
+		{
+			QString filename = iter.next();
+			QFileInfo current(filename);
+			// we keep the dirs... whatever
+			if(current.isDir())
+				continue;
+			QString trimmedf = filename;
+			trimmedf.remove(0, base_length + 1);
+			if(m_whitelist.contains(trimmedf))
+			{
+				//qDebug() << trimmedf << " gets to live";
+			}
+			else
+			{
+				// DO NOT TOLERATE JUNK
+				//qDebug() << trimmedf << " dies";
+				QFile f (filename);
+				f.remove();
+			}
+		}
+	};
+	QString m_base;
+	QStringList m_whitelist;
+};
+
+class NukeAndPaveJob: public Job
+{
+	Q_OBJECT
+public:
+
+	explicit NukeAndPaveJob(QString base, QStringList whitelist)
+		:Job()
+	{
+		QDir dir(base);
+		deleterThread.m_base = dir.absolutePath();
+		deleterThread.m_whitelist = whitelist;
+	};
+public slots:
+	virtual void start()
+	{
+		connect(&deleterThread, SIGNAL(finished()), SLOT(threadFinished()));
+		deleterThread.start();
+	};
+	void threadFinished()
+	{
+		emit finish();
+	}
+private:
+	ThreadedDeleter deleterThread;
+};
+
+class Private
+{
+public:
+	JobListQueue dl;
+	JobListPtr index_job;
+	JobListPtr files_job;
+};
+
+OneSixAssets::OneSixAssets(QObject* parent):QObject(parent), d(new Private) {}
+
+void OneSixAssets::fetchFinished()
+{
+	QString prefix ( "http://s3.amazonaws.com/Minecraft.Resources/" );
+	QString fprefix ( "assets/" );
+	QStringList nuke_whitelist;
+
+	JobPtr firstJob = d->index_job->getFirstJob();
+	auto DlJob = firstJob.dynamicCast<DownloadJob>();
+	QByteArray ba = DlJob->m_data;
+
+	QString xmlErrorMsg;
+	QDomDocument doc;
+	if ( !doc.setContent ( ba, false, &xmlErrorMsg ) )
+	{
+		qDebug() << "Failed to process s3.amazonaws.com/Minecraft.Resources. XML error:" <<
+		         xmlErrorMsg << ba;
+	}
+	//QRegExp etag_match(".*([a-f0-9]{32}).*");
+	QDomNodeList contents = doc.elementsByTagName ( "Contents" );
+
+	JobList *job = new JobList();
+	connect ( job, SIGNAL ( finished() ), SIGNAL(finished()) );
+	connect ( job, SIGNAL ( failed() ), SIGNAL(failed()) );
+
+	for ( int i = 0; i < contents.length(); i++ )
+	{
+		QDomElement element = contents.at ( i ).toElement();
+
+		if ( element.isNull() )
+			continue;
+
+		QDomElement keyElement = getDomElementByTagName ( element, "Key" );
+		QDomElement lastmodElement = getDomElementByTagName ( element, "LastModified" );
+		QDomElement etagElement = getDomElementByTagName ( element, "ETag" );
+		QDomElement sizeElement = getDomElementByTagName ( element, "Size" );
+
+		if ( keyElement.isNull() || lastmodElement.isNull() || etagElement.isNull() || sizeElement.isNull() )
+			continue;
+
+		QString keyStr = keyElement.text();
+		QString lastModStr = lastmodElement.text();
+		QString etagStr = etagElement.text();
+		QString sizeStr = sizeElement.text();
+
+		//Filter folder keys
+		if ( sizeStr == "0" )
+			continue;
+
+		QString trimmedEtag = etagStr.remove ( '"' );
+		job->add ( DownloadJob::create ( QUrl ( prefix + keyStr ),fprefix + keyStr, trimmedEtag ) );
+		nuke_whitelist.append ( keyStr );
+	}
+	job->add ( JobPtr ( new NukeAndPaveJob ( fprefix, nuke_whitelist ) ) );
+	d->files_job.reset ( job );
+	d->dl.enqueue ( d->files_job );
+}
+void OneSixAssets::fetchStarted()
+{
+	qDebug() << "Started downloading!";
+}
+void OneSixAssets::start()
+{
+	JobList *job = new JobList();
+	job->add ( DownloadJob::create ( QUrl ( "http://s3.amazonaws.com/Minecraft.Resources/" ) ) );
+	connect ( job, SIGNAL ( finished() ), SLOT ( fetchFinished() ) );
+	connect ( job, SIGNAL ( started() ), SLOT ( fetchStarted() ) );
+	d->index_job.reset ( job );
+	d->dl.enqueue ( d->index_job );
+}
+
+#include "OneSixAssets.moc"
\ No newline at end of file
diff --git a/backend/OneSixAssets.h b/backend/OneSixAssets.h
new file mode 100644
index 00000000..caf67c93
--- /dev/null
+++ b/backend/OneSixAssets.h
@@ -0,0 +1,21 @@
+#pragma once
+#include <QObject>
+#include <QSharedPointer>
+
+class Private;
+
+class OneSixAssets : public QObject
+{
+	Q_OBJECT
+signals:
+	void failed();
+	void finished();
+
+public slots:
+	void fetchFinished();
+	void fetchStarted();
+public:
+	explicit OneSixAssets ( QObject* parent = 0 );
+	void start();
+	QSharedPointer<Private> d;
+};
diff --git a/backend/OneSixInstance.cpp b/backend/OneSixInstance.cpp
index 1932651c..d81ed3b1 100644
--- a/backend/OneSixInstance.cpp
+++ b/backend/OneSixInstance.cpp
@@ -1,18 +1,32 @@
 #include "OneSixInstance.h"
 #include "OneSixInstance_p.h"
+#include "tasks/GameUpdateTask.h"
+#include "MinecraftProcess.h"
+#include <setting.h>
 
-OneSixInstance::OneSixInstance ( const QString& rootDir, SettingsObject* settings, QObject* parent )
-: BaseInstance ( new OneSixInstancePrivate(), rootDir, settings, parent )
+OneSixInstance::OneSixInstance ( const QString& rootDir, SettingsObject* setting_obj, QObject* parent )
+: BaseInstance ( new OneSixInstancePrivate(), rootDir, setting_obj, parent )
 {
-
+	I_D(OneSixInstance);
+	d->m_settings->registerSetting(new Setting("IntendedVersion", ""));
 }
 
 GameUpdateTask* OneSixInstance::doUpdate()
 {
-	return nullptr;
+	return new GameUpdateTask(this);
 }
 
 MinecraftProcess* OneSixInstance::prepareForLaunch ( QString user, QString session )
 {
 	return nullptr;
 }
+
+bool OneSixInstance::setIntendedVersionId ( QString version )
+{
+	settings().set("IntendedVersion", version);
+}
+
+QString OneSixInstance::intendedVersionId()
+{
+	return settings().get("IntendedVersion").toString();
+}
diff --git a/backend/OneSixInstance.h b/backend/OneSixInstance.h
index 2abf5b49..5b4b2d8f 100644
--- a/backend/OneSixInstance.h
+++ b/backend/OneSixInstance.h
@@ -8,4 +8,8 @@ public:
 	explicit OneSixInstance(const QString &rootDir, SettingsObject * settings, QObject *parent = 0);
 	virtual GameUpdateTask* doUpdate();
 	virtual MinecraftProcess* prepareForLaunch ( QString user, QString session );
+	
+	virtual bool setIntendedVersionId ( QString version );
+	virtual QString intendedVersionId();
+	
 };
\ No newline at end of file
diff --git a/backend/tasks/GameUpdateTask.cpp b/backend/tasks/GameUpdateTask.cpp
index 2b1acf26..f49b551c 100644
--- a/backend/tasks/GameUpdateTask.cpp
+++ b/backend/tasks/GameUpdateTask.cpp
@@ -24,6 +24,7 @@
 
 #include <QDebug>
 
+#include "BaseInstance.h"
 #include "lists/MinecraftVersionList.h"
 #include "VersionFactory.h"
 #include "OneSixVersion.h"
@@ -31,34 +32,23 @@
 #include "pathutils.h"
 
 
-GameUpdateTask::GameUpdateTask(const LoginResponse &response, BaseInstance *inst, QObject *parent) :
-	Task(parent), m_response(response)
+GameUpdateTask::GameUpdateTask(BaseInstance *inst, QObject *parent) :
+	Task(parent)
 {
 	m_inst = inst;
-	m_updateState = StateInit;
 }
 
 void GameUpdateTask::executeTask()
 {
-	updateStatus();
-	
 	// Get a pointer to the version object that corresponds to the instance's version.
-	//FIXME: HACKERY
-	// targetVersion = (MinecraftVersion *)MinecraftVersionList::getMainList().findVersion(m_inst->intendedVersion());
+	targetVersion = (MinecraftVersion *)MinecraftVersionList::getMainList().findVersion(m_inst->intendedVersionId());
 	if(targetVersion == NULL)
 	{
-		//Q_ASSERT_X(targetVersion != NULL, "game update", "instance's intended version is not an actual version");
-		setState(StateFinished);
-		emit gameUpdateComplete(m_response);
+		emit gameUpdateComplete();
 		return;
 	}
 	
-	/////////////////////////
-	// BUILD DOWNLOAD LIST //
-	/////////////////////////
-	// Build a list of URLs that will need to be downloaded.
-	
-	setState(StateDetermineURLs);
+	setStatus("Getting the version files from Mojang.");
 	
 	QString urlstr("http://s3.amazonaws.com/Minecraft.Download/versions/");
 	urlstr += targetVersion->descriptor() + "/" + targetVersion->descriptor() + ".json";
@@ -121,10 +111,6 @@ void GameUpdateTask::versionFileFinished()
 
 void GameUpdateTask::jarlibFinished()
 {
-	//FIXME: HACKERY
-	// m_inst->setCurrentVersion(targetVersion->descriptor());
-	// m_inst->setShouldUpdate(false);
-	// m_inst->setIsForNewLauncher(true);
 	exit(1);
 }
 
@@ -140,70 +126,6 @@ void GameUpdateTask::versionFileFailed()
 	exit(0);
 }
 
-
-int GameUpdateTask::state() const
-{
-	return m_updateState;
-}
-
-void GameUpdateTask::setState(int state, bool resetSubStatus)
-{
-	m_updateState = state;
-	if (resetSubStatus)
-		setSubStatus("");
-	else // We only need to update if we're not resetting substatus becasue setSubStatus updates status for us.
-		updateStatus();
-}
-
-QString GameUpdateTask::subStatus() const
-{
-	return m_subStatusMsg;
-}
-
-void GameUpdateTask::setSubStatus(const QString &msg)
-{
-	m_subStatusMsg = msg;
-	updateStatus();
-}
-
-QString GameUpdateTask::getStateMessage(int state)
-{
-	switch (state)
-	{
-	case StateInit:
-		return "Initializing";
-		
-	case StateDetermineURLs:
-		return "Determining files to download";
-		
-	case StateDownloadFiles:
-		return "Downloading files";
-		
-	case StateInstall:
-		return "Installing";
-		
-	case StateFinished:
-		return "Finished";
-	
-	default:
-		return "Downloading instance files";
-	}
-}
-
-void GameUpdateTask::updateStatus()
-{
-	QString newStatus;
-	
-	newStatus = getStateMessage(state());
-	if (!subStatus().isEmpty())
-		newStatus += ": " + subStatus();
-	else
-		newStatus += "...";
-	
-	setStatus(newStatus);
-}
-
-
 void GameUpdateTask::error(const QString &msg)
 {
 	emit gameUpdateError(msg);
diff --git a/backend/tasks/GameUpdateTask.h b/backend/tasks/GameUpdateTask.h
index ea0cf658..f13f42d1 100644
--- a/backend/tasks/GameUpdateTask.h
+++ b/backend/tasks/GameUpdateTask.h
@@ -24,12 +24,10 @@
 #include "dlqueue.h"
 
 #include "Task.h"
-#include "tasks/LoginResponse.h"
-#include "BaseInstance.h"
-
 #include "libmmc_config.h"
 
 class MinecraftVersion;
+class BaseInstance;
 
 /*!
  * The game update task is the task that handles downloading instances' files.
@@ -37,58 +35,14 @@ class MinecraftVersion;
 class LIBMULTIMC_EXPORT GameUpdateTask : public Task
 {
 	Q_OBJECT
-	
-	/*!
-	 * The task's state.
-	 * A certain state message will be shown depending on what this is set to.
-	 */
-	Q_PROPERTY(int state READ state WRITE setState)
-	
-	/*!
-	 * The substatus message.
-	 * This will be next to the the state message in the task's status.
-	 */
-	Q_PROPERTY(QString subStatus READ subStatus WRITE setSubStatus)
 public:
-	explicit GameUpdateTask(const LoginResponse &response, BaseInstance *inst, QObject *parent = 0);
-	
-	
-	/////////////////////////
-	// EXECUTION FUNCTIONS //
-	/////////////////////////
+	explicit GameUpdateTask(BaseInstance *inst, QObject *parent = 0);
 	
 	virtual void executeTask();
 	
-	//////////////////////
-	// STATE AND STATUS //
-	//////////////////////
-	
-	virtual int state() const;
-	virtual void setState(int state, bool resetSubStatus = true);
-	
-	virtual QString subStatus() const;
-	virtual void setSubStatus(const QString &msg);
-	
-	/*!
-	 * Gets the message that will be displated for the given state.
-	 */
-	virtual QString getStateMessage(int state);
-	
-private:
-	void getLegacyJar();
-	void determineNewVersion();
-	
 public slots:
-	
-	/*!
-	 * Updates the status message based on the state and substatus message.
-	 */
-	virtual void updateStatus();
-	
-	
 	virtual void error(const QString &msg);
 	
-	
 private slots:
 	void updateDownloadProgress(qint64 current, qint64 total);
 	
@@ -103,7 +57,7 @@ signals:
 	 * \brief Signal emitted when the game update is complete.
 	 * \param response The login response received from login task.
 	 */
-	void gameUpdateComplete(const LoginResponse &response);
+	void gameUpdateComplete();
 	
 	/*!
 	 * \brief Signal emitted if an error occurrs during the update.
@@ -112,37 +66,10 @@ signals:
 	void gameUpdateError(const QString &errorMsg);
 	
 private:
-	///////////
-	// STUFF //
-	///////////
-	
 	BaseInstance *m_inst;
-	LoginResponse m_response;
-	
-	////////////////////////////
-	// STATE AND STATUS STUFF //
-	////////////////////////////
-	
-	int m_updateState;
+
 	QString m_subStatusMsg;
 	
-	enum UpdateState
-	{
-		// Initializing
-		StateInit = 0,
-		
-		// Determining files to download
-		StateDetermineURLs,
-		
-		// Downloading files
-		StateDownloadFiles,
-		
-		// Installing files
-		StateInstall,
-		
-		// Finished
-		StateFinished
-	};
 	JobListPtr legacyDownloadJob;
 	JobListPtr specificVersionDownloadJob;
 	JobListPtr jarlibDownloadJob;
diff --git a/backend/tasks/LoginResponse.cpp b/backend/tasks/LoginResponse.cpp
deleted file mode 100644
index 218f51c1..00000000
--- a/backend/tasks/LoginResponse.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-/* Copyright 2013 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 "tasks/LoginResponse.h"
-
-LoginResponse::LoginResponse(const QString& username, const QString& sessionID, 
-							 qint64 latestVersion, QObject *parent) :
-	QObject(parent)
-{
-	this->m_username = username;
-	this->m_sessionID = sessionID;
-	this->m_latestVersion = latestVersion;
-}
-
-LoginResponse::LoginResponse()
-{
-	this->m_username = "";
-	this->m_sessionID = "";
-	this->m_latestVersion = 0;
-}
-
-LoginResponse::LoginResponse(const LoginResponse &other)
-{
-	this->m_username = other.username();
-	this->m_sessionID = other.sessionID();
-	this->m_latestVersion = other.latestVersion();
-}
-
-QString LoginResponse::username() const
-{
-	return m_username;
-}
-
-void LoginResponse::setUsername(const QString& username)
-{
-	this->m_username = username;
-}
-
-QString LoginResponse::sessionID() const
-{
-	return m_sessionID;
-}
-
-void LoginResponse::setSessionID(const QString& sessionID)
-{
-	this->m_sessionID = sessionID;
-}
-
-qint64 LoginResponse::latestVersion() const
-{
-	return m_latestVersion;
-}
-
-void LoginResponse::setLatestVersion(qint64 v)
-{
-	this->m_latestVersion = v;
-}
diff --git a/backend/tasks/LoginResponse.h b/backend/tasks/LoginResponse.h
deleted file mode 100644
index 60875619..00000000
--- a/backend/tasks/LoginResponse.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/* Copyright 2013 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.
- */
-
-#pragma once
-
-#include <QObject>
-
-#include "libmmc_config.h"
-
-/*!
- * \brief The LoginResponse class represents a response received from Minecraft's login servers.
- */
-class LIBMULTIMC_EXPORT LoginResponse : public QObject
-{
-	Q_OBJECT
-public:
-	/*!
-	 * \brief Creates a new instance of the LoginResponse class.
-	 * \param username The user's username.
-	 * \param sessionID The user's session ID.
-	 * \param latestVersion The latest version of Minecraft.
-	 * \param parent The parent object.
-	 */
-	explicit LoginResponse(const QString &username, const QString &sessionID, 
-						   qint64 latestVersion, QObject *parent = 0);
-	LoginResponse();
-	LoginResponse(const LoginResponse& other);
-	
-	/*!
-	 * \brief Gets the username.
-	 * This one should go without saying.
-	 * \return The username.
-	 * \sa setUsername()
-	 */
-	QString username() const;
-	
-	/*!
-	 * \brief setUsername Sets the username.
-	 * \param username The new username.
-	 * \sa username()
-	 */
-	void setUsername(const QString& username);
-	
-	
-	/*!
-	 * \brief Gets the session ID.
-	 * \return The session ID.
-	 * \sa setSessionID()
-	 */
-	QString sessionID() const;
-	
-	/*!
-	 * \brief Sets the session ID.
-	 * \param sessionID The new session ID.
-	 * \sa sessionID()
-	 */
-	void setSessionID(const QString& sessionID);
-	
-	
-	/*!
-	 * \brief Gets the latest version.
-	 * This is a value returned by the login servers when a user logs in.
-	 * \return The latest version.
-	 * \sa setLatestVersion()
-	 */
-	qint64 latestVersion() const;
-	
-	/*!
-	 * \brief Sets the latest version.
-	 * \param v The new latest version.
-	 * \sa latestVersion()
-	 */
-	void setLatestVersion(qint64 v);
-	
-private:
-	QString m_username;
-	QString m_sessionID;
-	qint64 m_latestVersion;
-};
-
-Q_DECLARE_METATYPE(LoginResponse)
-
diff --git a/backend/tasks/LoginTask.cpp b/backend/tasks/LoginTask.cpp
index 11f58f28..999a718e 100644
--- a/backend/tasks/LoginTask.cpp
+++ b/backend/tasks/LoginTask.cpp
@@ -77,7 +77,7 @@ void LoginTask::processNetReply(QNetworkReply *reply)
 					QString username = strings[2];
 					QString sessionID = strings[3];
 					
-					LoginResponse response(username, sessionID, latestVersion);
+					LoginResponse response{username, sessionID, latestVersion};
 					emit loginComplete(response);
 				}
 				else
diff --git a/backend/tasks/LoginTask.h b/backend/tasks/LoginTask.h
index e23ea9e9..cb606204 100644
--- a/backend/tasks/LoginTask.h
+++ b/backend/tasks/LoginTask.h
@@ -19,10 +19,15 @@
 #include "Task.h"
 
 #include "UserInfo.h"
-#include "tasks/LoginResponse.h"
-
 #include "libmmc_config.h"
 
+struct LoginResponse
+{
+	QString username;
+	QString sessionID;
+	qint64 latestVersion;
+};
+
 //class QNetworkAccessManager;
 class QNetworkReply;
 
diff --git a/gui/mainwindow.cpp b/gui/mainwindow.cpp
index db3a2828..50d301ed 100644
--- a/gui/mainwindow.cpp
+++ b/gui/mainwindow.cpp
@@ -192,15 +192,13 @@ void MainWindow::on_actionAddInstance_triggered()
 	QString instDir = PathCombine(globalSettings->get("InstanceDir").toString(), instDirName);
 	
 	auto &loader = InstanceFactory::get();
-	auto error = loader.createInstance(newInstance, instDir);
-	QString errorMsg = QString("Failed to create instance %1: ").arg(instDirName);
 	
+	auto error = loader.createInstance(newInstance, newInstDlg->selectedVersion(), instDir);
+	QString errorMsg = QString("Failed to create instance %1: ").arg(instDirName);
 	switch (error)
 	{
 	case InstanceFactory::NoCreateError:
 		newInstance->setName(newInstDlg->instName());
-		// FIXME:HACKERY
-		// newInstance->setIntendedVersion(newInstDlg->selectedVersion()->descriptor());
 		instList.add(InstancePtr(newInstance));
 		return;
 	
@@ -417,24 +415,25 @@ void MainWindow::onLoginComplete(LoginResponse response)
 {
 	if(!m_activeInst)
 		return;
+	m_activeLogin = LoginResponse(response);
 	
 	GameUpdateTask *updateTask = m_activeInst->doUpdate();
 	if(!updateTask)
 	{
-		launchInstance(m_activeInst, response);
+		launchInstance(m_activeInst, m_activeLogin);
 	}
 	else
 	{
 		TaskDialog *tDialog = new TaskDialog(this);
-		connect(updateTask, SIGNAL(gameUpdateComplete(LoginResponse)),SLOT(onGameUpdateComplete(LoginResponse)));
+		connect(updateTask, SIGNAL(gameUpdateComplete()),SLOT(onGameUpdateComplete()));
 		connect(updateTask, SIGNAL(gameUpdateError(QString)), SLOT(onGameUpdateError(QString)));
 		tDialog->exec(updateTask);
 	}
 }
 
-void MainWindow::onGameUpdateComplete(LoginResponse response)
+void MainWindow::onGameUpdateComplete()
 {
-	launchInstance(m_activeInst, response);
+	launchInstance(m_activeInst, m_activeLogin);
 }
 
 void MainWindow::onGameUpdateError(QString error)
@@ -446,7 +445,7 @@ void MainWindow::launchInstance(BaseInstance *instance, LoginResponse response)
 {
 	Q_ASSERT_X(instance != NULL, "launchInstance", "instance is NULL");
 	
-	proc = instance->prepareForLaunch(response.username(), response.sessionID());
+	proc = instance->prepareForLaunch(response.username, response.sessionID);
 	if(!proc)
 		return;
 	
@@ -524,8 +523,7 @@ void MainWindow::on_actionChangeInstMCVersion_triggered()
 	VersionSelectDialog *vselect = new VersionSelectDialog(inst->versionList(), this);
 	if (vselect->exec() && vselect->selectedVersion())
 	{
-		// FIXME:HACKERY
-		// inst->setIntendedVersion(vselect->selectedVersion()->descriptor());
+		inst->setIntendedVersionId(vselect->selectedVersion()->descriptor());
 	}
 }
 
diff --git a/gui/mainwindow.h b/gui/mainwindow.h
index 738dac0c..8ab90cc6 100644
--- a/gui/mainwindow.h
+++ b/gui/mainwindow.h
@@ -19,7 +19,7 @@
 #include <QMainWindow>
 
 #include "lists/InstanceList.h"
-#include "tasks/LoginResponse.h"
+#include "tasks/LoginTask.h"
 #include "BaseInstance.h"
 
 class InstanceModel;
@@ -100,7 +100,7 @@ private slots:
 	void onLoginComplete(LoginResponse response);
 	
 	
-	void onGameUpdateComplete(LoginResponse response);
+	void onGameUpdateComplete();
 	void onGameUpdateError(QString error);
 	
 	void taskStart(Task *task);
@@ -133,6 +133,7 @@ private:
 	// This is set when the user launches an instance and is used to refer to that
 	// instance throughout the launching process.
 	BaseInstance *m_activeInst;
+	LoginResponse m_activeLogin;
 	
 	Task *m_versionLoadTask;
 };
diff --git a/main.cpp b/main.cpp
index 51cdde3f..468cf438 100644
--- a/main.cpp
+++ b/main.cpp
@@ -28,7 +28,6 @@
 
 #include "AppSettings.h"
 #include "lists/InstanceList.h"
-#include "tasks/LoginResponse.h"
 #include "tasks/LoginTask.h"
 #include "MinecraftProcess.h"
 
@@ -64,7 +63,7 @@ private slots:
 	
 	void onLoginComplete(QString instId, LoginResponse response)
 	{
-		proc = instance->prepareForLaunch(response.username(), response.sessionID());
+		proc = instance->prepareForLaunch(response.username, response.sessionID);
 		if(!proc)
 		{
 			//FIXME: report error