Offline mode can be used even when online.

Allow the user to pick a player name for offline mode.
Big auth refactor. Now using session objects instead of the accounts themselves.
Sessions only last for one instance start and hold all the auth and player data.

22 files changed, 238 insertions, 170 deletions

diff --git a/logic/BaseInstance.h b/logic/BaseInstance.h
index a861e9b2..cd49f99b 100644
--- a/logic/BaseInstance.h
+++ b/logic/BaseInstance.h
@@ -155,10 +155,10 @@ public:
 	virtual SettingsObject &settings() const;
 
 	/// returns a valid update task
-	virtual std::shared_ptr<Task> doUpdate(bool only_prepare) = 0;
+	virtual std::shared_ptr<Task> doUpdate() = 0;
 
 	/// returns a valid minecraft process, ready for launch with the given account.
-	virtual MinecraftProcess *prepareForLaunch(MojangAccountPtr account) = 0;
+	virtual MinecraftProcess *prepareForLaunch(AuthSessionPtr account) = 0;
 
 	/// do any necessary cleanups after the instance finishes. also runs before
 	/// 'prepareForLaunch'
diff --git a/logic/LegacyInstance.cpp b/logic/LegacyInstance.cpp
index 2828bcbf..a9f0d112 100644
--- a/logic/LegacyInstance.cpp
+++ b/logic/LegacyInstance.cpp
@@ -42,15 +42,15 @@ LegacyInstance::LegacyInstance(const QString &rootDir, SettingsObject *settings,
 	settings->registerSetting("IntendedJarVersion", "");
 }
 
-std::shared_ptr<Task> LegacyInstance::doUpdate(bool only_prepare)
+std::shared_ptr<Task> LegacyInstance::doUpdate()
 {
 	// make sure the jar mods list is initialized by asking for it.
 	auto list = jarModList();
 	// create an update task
-	return std::shared_ptr<Task>(new LegacyUpdate(this, only_prepare, this));
+	return std::shared_ptr<Task>(new LegacyUpdate(this, this));
 }
 
-MinecraftProcess *LegacyInstance::prepareForLaunch(MojangAccountPtr account)
+MinecraftProcess *LegacyInstance::prepareForLaunch(AuthSessionPtr account)
 {
 	MinecraftProcess *proc = new MinecraftProcess(this);
 
@@ -66,13 +66,14 @@ MinecraftProcess *LegacyInstance::prepareForLaunch(MojangAccountPtr account)
 		if (settings().get("LaunchMaximized").toBool())
 			windowParams = "max";
 		else
-			windowParams = QString("%1x%2").arg(settings().get("MinecraftWinWidth").toInt()).arg(
-				settings().get("MinecraftWinHeight").toInt());
+			windowParams = QString("%1x%2")
+							   .arg(settings().get("MinecraftWinWidth").toInt())
+							   .arg(settings().get("MinecraftWinHeight").toInt());
 
 		QString lwjgl = QDir(MMC->settings()->get("LWJGLDir").toString() + "/" + lwjglVersion())
 							.absolutePath();
-		launchScript += "userName " + account->currentProfile()->name + "\n";
-		launchScript += "sessionId " + account->sessionId() + "\n";
+		launchScript += "userName " + account->player_name + "\n";
+		launchScript += "sessionId " + account->session + "\n";
 		launchScript += "windowTitle " + windowTitle() + "\n";
 		launchScript += "windowParams " + windowParams + "\n";
 		launchScript += "lwjgl " + lwjgl + "\n";
diff --git a/logic/LegacyInstance.h b/logic/LegacyInstance.h
index 1e7d9eb6..636addeb 100644
--- a/logic/LegacyInstance.h
+++ b/logic/LegacyInstance.h
@@ -76,9 +76,9 @@ public:
 
 	virtual bool shouldUpdate() const override;
 	virtual void setShouldUpdate(bool val) override;
-	virtual std::shared_ptr<Task> doUpdate(bool only_prepare) override;
+	virtual std::shared_ptr<Task> doUpdate() override;
 
-	virtual MinecraftProcess *prepareForLaunch(MojangAccountPtr account) override;
+	virtual MinecraftProcess *prepareForLaunch(AuthSessionPtr account) override;
 	virtual void cleanupAfterRun() override;
 	virtual QDialog *createModEditDialog(QWidget *parent) override;
 
diff --git a/logic/LegacyUpdate.cpp b/logic/LegacyUpdate.cpp
index cb3598a7..5d82a76b 100644
--- a/logic/LegacyUpdate.cpp
+++ b/logic/LegacyUpdate.cpp
@@ -27,13 +27,13 @@
 #include "logger/QsLog.h"
 #include "logic/net/URLConstants.h"
 
-LegacyUpdate::LegacyUpdate(BaseInstance *inst, bool only_prepare, QObject *parent)
-	: Task(parent), m_inst(inst), m_only_prepare(only_prepare)
+LegacyUpdate::LegacyUpdate(BaseInstance *inst, QObject *parent) : Task(parent), m_inst(inst)
 {
 }
 
 void LegacyUpdate::executeTask()
 {
+	/*
 	if(m_only_prepare)
 	{
 		// FIXME: think this through some more.
@@ -49,8 +49,9 @@ void LegacyUpdate::executeTask()
 	}
 	else
 	{
-		lwjglStart();
-	}
+		*/
+	lwjglStart();
+	//}
 }
 
 void LegacyUpdate::lwjglStart()
@@ -268,7 +269,6 @@ void LegacyUpdate::jarStart()
 
 	auto dljob = new NetJob("Minecraft.jar for version " + version_id);
 
-
 	auto metacache = MMC->metacache();
 	auto entry = metacache->resolveEntry("versions", localPath);
 	dljob->addNetAction(CacheDownload::make(QUrl(urlstr), entry));
@@ -425,7 +425,7 @@ void LegacyUpdate::ModTheJar()
 		auto &mod = modList->operator[](i);
 
 		// do not merge disabled mods.
-		if(!mod.enabled())
+		if (!mod.enabled())
 			continue;
 
 		if (mod.type() == Mod::MOD_ZIPFILE)
diff --git a/logic/LegacyUpdate.h b/logic/LegacyUpdate.h
index 0b573ca5..613eb1f9 100644
--- a/logic/LegacyUpdate.h
+++ b/logic/LegacyUpdate.h
@@ -31,7 +31,7 @@ class LegacyUpdate : public Task
 {
 	Q_OBJECT
 public:
-	explicit LegacyUpdate(BaseInstance *inst, bool only_prepare, QObject *parent = 0);
+	explicit LegacyUpdate(BaseInstance *inst, QObject *parent = 0);
 	virtual void executeTask();
 
 private
@@ -72,5 +72,4 @@ private:
 private:
 	NetJobPtr legacyDownloadJob;
 	BaseInstance *m_inst = nullptr;
-	bool m_only_prepare = false;
 };
diff --git a/logic/MinecraftProcess.cpp b/logic/MinecraftProcess.cpp
index 84610021..9c0a7074 100644
--- a/logic/MinecraftProcess.cpp
+++ b/logic/MinecraftProcess.cpp
@@ -79,26 +79,18 @@ void MinecraftProcess::setWorkdir(QString path)
 
 QString MinecraftProcess::censorPrivateInfo(QString in)
 {
-	if(!m_account)
+	if(!m_session)
 		return in;
 
-	QString sessionId = m_account->sessionId();
-	QString accessToken = m_account->accessToken();
-	QString clientToken = m_account->clientToken();
-	in.replace(sessionId, "<SESSION ID>");
-	in.replace(accessToken, "<ACCESS TOKEN>");
-	in.replace(clientToken, "<CLIENT TOKEN>");
-	auto profile = m_account->currentProfile();
-	if(profile)
-	{
-		QString profileId = profile->id;
-		QString profileName = profile->name;
-		in.replace(profileId, "<PROFILE ID>");
-		in.replace(profileName, "<PROFILE NAME>");
-	}
+	if(m_session->session != "-")
+		in.replace(m_session->session, "<SESSION ID>");
+	in.replace(m_session->access_token, "<ACCESS TOKEN>");
+	in.replace(m_session->client_token, "<CLIENT TOKEN>");
+	in.replace(m_session->uuid, "<PROFILE ID>");
+	in.replace(m_session->player_name, "<PROFILE NAME>");
 
-	auto i = m_account->user().properties.begin();
-	while (i != m_account->user().properties.end())
+	auto i = m_session->u.properties.begin();
+	while (i != m_session->u.properties.end())
 	{
 		in.replace(i.value(), "<" + i.key().toUpper() + ">");
 		++i;
diff --git a/logic/MinecraftProcess.h b/logic/MinecraftProcess.h
index 70e5df52..26214026 100644
--- a/logic/MinecraftProcess.h
+++ b/logic/MinecraftProcess.h
@@ -78,9 +78,9 @@ public:
 
 	void killMinecraft();
 
-	inline void setLogin(MojangAccountPtr account)
+	inline void setLogin(AuthSessionPtr session)
 	{
-		m_account = account;
+		m_session = session;
 	}
 
 signals:
@@ -117,7 +117,7 @@ protected:
 	QString m_out_leftover;
 	QProcess m_prepostlaunchprocess;
 	bool killed = false;
-	MojangAccountPtr m_account;
+	AuthSessionPtr m_session;
 	QString launchScript;
 	QString m_nativeFolder;
 
diff --git a/logic/OneSixFTBInstance.cpp b/logic/OneSixFTBInstance.cpp
index e50a5b53..f8e695b9 100644
--- a/logic/OneSixFTBInstance.cpp
+++ b/logic/OneSixFTBInstance.cpp
@@ -106,7 +106,7 @@ bool OneSixFTBInstance::menuActionEnabled(QString action_name) const
 	return false;
 }
 
-std::shared_ptr<Task> OneSixFTBInstance::doUpdate(bool only_prepare)
+std::shared_ptr<Task> OneSixFTBInstance::doUpdate()
 {
 	std::shared_ptr<SequentialTask> task;
 	task.reset(new SequentialTask(this));
@@ -114,11 +114,11 @@ std::shared_ptr<Task> OneSixFTBInstance::doUpdate(bool only_prepare)
 	{
 		task->addTask(std::shared_ptr<Task>(MMC->forgelist()->getLoadTask()));
 	}
-	task->addTask(OneSixInstance::doUpdate(only_prepare));
+	task->addTask(OneSixInstance::doUpdate());
 	task->addTask(std::shared_ptr<Task>(new OneSixFTBInstanceForge(m_forge->version(), this, this)));
 	//FIXME: yes. this may appear dumb. but the previous step can change the list, so we do it all again.
 	//TODO: Add a graph task. Construct graphs of tasks so we may capture the logic properly.
-	task->addTask(OneSixInstance::doUpdate(only_prepare));
+	task->addTask(OneSixInstance::doUpdate());
 	return task;
 }
 
diff --git a/logic/OneSixFTBInstance.h b/logic/OneSixFTBInstance.h
index dc028819..bc543aeb 100644
--- a/logic/OneSixFTBInstance.h
+++ b/logic/OneSixFTBInstance.h
@@ -13,7 +13,7 @@ public:
 	virtual QString getStatusbarDescription();
 	virtual bool menuActionEnabled(QString action_name) const;
 
-	virtual std::shared_ptr<Task> doUpdate(bool only_prepare) override;
+	virtual std::shared_ptr<Task> doUpdate() override;
 
 	virtual QString id() const;
 
diff --git a/logic/OneSixInstance.cpp b/logic/OneSixInstance.cpp
index ab87a1db..67649f77 100644
--- a/logic/OneSixInstance.cpp
+++ b/logic/OneSixInstance.cpp
@@ -41,9 +41,9 @@ OneSixInstance::OneSixInstance(const QString &rootDir, SettingsObject *setting_o
 	reloadFullVersion();
 }
 
-std::shared_ptr<Task> OneSixInstance::doUpdate(bool only_prepare)
+std::shared_ptr<Task> OneSixInstance::doUpdate()
 {
-	return std::shared_ptr<Task>(new OneSixUpdate(this, only_prepare));
+	return std::shared_ptr<Task>(new OneSixUpdate(this));
 }
 
 QString replaceTokensIn(QString text, QMap<QString, QString> with)
@@ -130,7 +130,7 @@ QDir OneSixInstance::reconstructAssets(std::shared_ptr<OneSixVersion> version)
 	return virtualRoot;
 }
 
-QStringList OneSixInstance::processMinecraftArgs(MojangAccountPtr account)
+QStringList OneSixInstance::processMinecraftArgs(AuthSessionPtr session)
 {
 	I_D(OneSixInstance);
 	auto version = d->version;
@@ -138,17 +138,11 @@ QStringList OneSixInstance::processMinecraftArgs(MojangAccountPtr account)
 
 	QMap<QString, QString> token_mapping;
 	// yggdrasil!
-	token_mapping["auth_username"] = account->username();
-	token_mapping["auth_session"] = account->sessionId();
-	token_mapping["auth_access_token"] = account->accessToken();
-	token_mapping["auth_player_name"] = account->currentProfile()->name;
-	token_mapping["auth_uuid"] = account->currentProfile()->id;
-
-	// this is for offline?:
-	/*
-	map["auth_player_name"] = "Player";
-	map["auth_player_name"] = "00000000-0000-0000-0000-000000000000";
-	*/
+	token_mapping["auth_username"] = session->username;
+	token_mapping["auth_session"] = session->session;
+	token_mapping["auth_access_token"] = session->access_token;
+	token_mapping["auth_player_name"] = session->player_name;
+	token_mapping["auth_uuid"] = session->uuid;
 
 	// these do nothing and are stupid.
 	token_mapping["profile_name"] = name();
@@ -159,17 +153,8 @@ QStringList OneSixInstance::processMinecraftArgs(MojangAccountPtr account)
 	QString absAssetsDir = QDir("assets/").absolutePath();
 	token_mapping["game_assets"] = reconstructAssets(d->version).absolutePath();
 
-	auto user = account->user();
-	QJsonObject userAttrs;
-	for (auto key : user.properties.keys())
-	{
-		auto array = QJsonArray::fromStringList(user.properties.values(key));
-		userAttrs.insert(key, array);
-	}
-	QJsonDocument value(userAttrs);
-
-	token_mapping["user_properties"] = value.toJson(QJsonDocument::Compact);
-	token_mapping["user_type"] = account->currentProfile()->legacy ? "legacy" : "mojang";
+	token_mapping["user_properties"] = session->serializeUserProperties();
+	token_mapping["user_type"] = session->user_type;
 	// 1.7.3+ assets tokens
 	token_mapping["assets_root"] = absAssetsDir;
 	token_mapping["assets_index_name"] = version->assets;
@@ -182,7 +167,7 @@ QStringList OneSixInstance::processMinecraftArgs(MojangAccountPtr account)
 	return parts;
 }
 
-MinecraftProcess *OneSixInstance::prepareForLaunch(MojangAccountPtr account)
+MinecraftProcess *OneSixInstance::prepareForLaunch(AuthSessionPtr session)
 {
 	I_D(OneSixInstance);
 
@@ -207,7 +192,7 @@ MinecraftProcess *OneSixInstance::prepareForLaunch(MojangAccountPtr account)
 	}
 	launchScript += "mainClass " + version->mainClass + "\n";
 
-	for (auto param : processMinecraftArgs(account))
+	for (auto param : processMinecraftArgs(session))
 	{
 		launchScript += "param " + param + "\n";
 	}
diff --git a/logic/OneSixInstance.h b/logic/OneSixInstance.h
index f869e345..c159723b 100644
--- a/logic/OneSixInstance.h
+++ b/logic/OneSixInstance.h
@@ -40,8 +40,8 @@ public:
 	QString loaderModsDir() const;
 	virtual QString instanceConfigFolder() const override;
 
-	virtual std::shared_ptr<Task> doUpdate(bool only_prepare) override;
-	virtual MinecraftProcess *prepareForLaunch(MojangAccountPtr account) override;
+	virtual std::shared_ptr<Task> doUpdate() override;
+	virtual MinecraftProcess *prepareForLaunch(AuthSessionPtr session) override;
 
 	virtual void cleanupAfterRun() override;
 
@@ -73,6 +73,6 @@ public:
 	virtual QString getStatusbarDescription() override;
 
 private:
-	QStringList processMinecraftArgs(MojangAccountPtr account);
+	QStringList processMinecraftArgs(AuthSessionPtr account);
 	QDir reconstructAssets(std::shared_ptr<OneSixVersion> version);
 };
diff --git a/logic/OneSixUpdate.cpp b/logic/OneSixUpdate.cpp
index ae647bfe..7685952c 100644
--- a/logic/OneSixUpdate.cpp
+++ b/logic/OneSixUpdate.cpp
@@ -35,8 +35,8 @@
 #include "pathutils.h"
 #include <JlCompress.h>
 
-OneSixUpdate::OneSixUpdate(BaseInstance *inst, bool only_prepare, QObject *parent)
-	: Task(parent), m_inst(inst), m_only_prepare(only_prepare)
+OneSixUpdate::OneSixUpdate(BaseInstance *inst, QObject *parent)
+	: Task(parent), m_inst(inst)
 {
 }
 
@@ -52,12 +52,6 @@ void OneSixUpdate::executeTask()
 		return;
 	}
 
-	if (m_only_prepare)
-	{
-		prepareForLaunch();
-		return;
-	}
-
 	if (m_inst->shouldUpdate())
 	{
 		// Get a pointer to the version object that corresponds to the instance's version.
@@ -222,7 +216,7 @@ void OneSixUpdate::assetIndexFailed()
 
 void OneSixUpdate::assetsFinished()
 {
-	prepareForLaunch();
+	emitSucceeded();
 }
 
 void OneSixUpdate::assetsFailed()
@@ -330,43 +324,3 @@ void OneSixUpdate::jarlibFailed()
 	emitFailed("Failed to download the following files:\n" + failed_all +
 			   "\n\nPlease try again.");
 }
-
-void OneSixUpdate::prepareForLaunch()
-{
-	setStatus(tr("Preparing for launch..."));
-	QLOG_INFO() << m_inst->name() << ": preparing for launch";
-	auto onesix_inst = (OneSixInstance *)m_inst;
-
-	// delete any leftovers, if they are present.
-	onesix_inst->cleanupAfterRun();
-
-	QString natives_dir_raw = PathCombine(onesix_inst->instanceRoot(), "natives/");
-	auto version = onesix_inst->getFullVersion();
-	if (!version)
-	{
-		emitFailed("The version information for this instance is not complete. Try re-creating "
-				   "it or changing the version.");
-		return;
-	}
-	/*
-	for (auto lib : version->getActiveNativeLibs())
-	{
-		if (!lib->filesExist())
-		{
-			emitFailed("Native library is missing some files:\n" + lib->storagePath() +
-					   "\n\nRun the instance at least once in online mode to get all the "
-					   "required files.");
-			return;
-		}
-		if (!lib->extractTo(natives_dir_raw))
-		{
-			emitFailed("Could not extract the native library:\n" + lib->storagePath() + " to " +
-					   natives_dir_raw +
-					   "\n\nMake sure MultiMC has appropriate permissions and there is enough "
-					   "space on the storage device.");
-			return;
-		}
-	}
-*/
-	emitSucceeded();
-}
diff --git a/logic/OneSixUpdate.h b/logic/OneSixUpdate.h
index bc717a94..3c18211e 100644
--- a/logic/OneSixUpdate.h
+++ b/logic/OneSixUpdate.h
@@ -29,7 +29,7 @@ class OneSixUpdate : public Task
 {
 	Q_OBJECT
 public:
-	explicit OneSixUpdate(BaseInstance *inst, bool prepare_for_launch, QObject *parent = 0);
+	explicit OneSixUpdate(BaseInstance *inst, QObject *parent = 0);
 	virtual void executeTask();
 
 private
@@ -49,9 +49,6 @@ slots:
 	void assetsFinished();
 	void assetsFailed();
 
-	// extract the appropriate libraries
-	void prepareForLaunch();
-
 private:
 	NetJobPtr specificVersionDownloadJob;
 	NetJobPtr jarlibDownloadJob;
@@ -59,5 +56,4 @@ private:
 	// target version, determined during this task
 	std::shared_ptr<MinecraftVersion> targetVersion;
 	BaseInstance *m_inst = nullptr;
-	bool m_only_prepare = false;
 };
diff --git a/logic/auth/AuthSession.cpp b/logic/auth/AuthSession.cpp
new file mode 100644
index 00000000..8758bfbd
--- /dev/null
+++ b/logic/auth/AuthSession.cpp
@@ -0,0 +1,30 @@
+#include "AuthSession.h"
+#include <QJsonObject>
+#include <QJsonArray>
+#include <QJsonDocument>
+#include <QStringList>
+
+QString AuthSession::serializeUserProperties()
+{
+	QJsonObject userAttrs;
+	for (auto key : u.properties.keys())
+	{
+		auto array = QJsonArray::fromStringList(u.properties.values(key));
+		userAttrs.insert(key, array);
+	}
+	QJsonDocument value(userAttrs);
+	return value.toJson(QJsonDocument::Compact);
+
+}
+
+bool AuthSession::MakeOffline(QString offline_playername)
+{
+	if (status != PlayableOffline && status != PlayableOnline)
+	{
+		return false;
+	}
+	session = "-";
+	player_name = offline_playername;
+	status = PlayableOffline;
+	return true;
+}
diff --git a/logic/auth/AuthSession.h b/logic/auth/AuthSession.h
new file mode 100644
index 00000000..2ac170fa
--- /dev/null
+++ b/logic/auth/AuthSession.h
@@ -0,0 +1,49 @@
+#pragma once
+
+#include <QString>
+#include <QMultiMap>
+#include <memory>
+
+struct User
+{
+	QString id;
+	QMultiMap<QString, QString> properties;
+};
+
+struct AuthSession
+{
+	bool MakeOffline(QString offline_playername);
+
+	QString serializeUserProperties();
+
+	enum Status
+	{
+		Undetermined,
+		RequiresPassword,
+		PlayableOffline,
+		PlayableOnline
+	} status = Undetermined;
+
+	User u;
+
+	// client token
+	QString client_token;
+	// account user name
+	QString username;
+	// combined session ID
+	QString session;
+	// volatile auth token
+	QString access_token;
+	// profile name
+	QString player_name;
+	// profile ID
+	QString uuid;
+	// 'legacy' or 'mojang', depending on account type
+	QString user_type;
+	// Did the auth server reply?
+	bool auth_server_online = false;
+	// Did the user request online mode?
+	bool wants_online = true;
+};
+
+typedef std::shared_ptr<AuthSession> AuthSessionPtr;
diff --git a/logic/auth/MojangAccount.cpp b/logic/auth/MojangAccount.cpp
index f41985ec..6c937ef1 100644
--- a/logic/auth/MojangAccount.cpp
+++ b/logic/auth/MojangAccount.cpp
@@ -24,6 +24,7 @@
 #include <QJsonArray>
 #include <QRegExp>
 #include <QStringList>
+#include <QJsonDocument>
 
 #include <logger/QsLog.h>
 
@@ -165,15 +166,26 @@ AccountStatus MojangAccount::accountStatus() const
 {
 	if (m_accessToken.isEmpty())
 		return NotVerified;
-	if (!m_online)
+	else
 		return Verified;
-	return Online;
 }
 
-std::shared_ptr<YggdrasilTask> MojangAccount::login(QString password)
+std::shared_ptr<YggdrasilTask> MojangAccount::login(AuthSessionPtr session,
+													QString password)
 {
-	if (m_currentTask)
-		return m_currentTask;
+	Q_ASSERT(m_currentTask.get() == nullptr);
+
+	// take care of the true offline status
+	if (accountStatus() == NotVerified && password.isEmpty())
+	{
+		if (session)
+		{
+			session->status = AuthSession::RequiresPassword;
+			fillSession(session);
+		}
+		return nullptr;
+	}
+
 	if (password.isEmpty())
 	{
 		m_currentTask.reset(new RefreshTask(this));
@@ -182,6 +194,8 @@ std::shared_ptr<YggdrasilTask> MojangAccount::login(QString password)
 	{
 		m_currentTask.reset(new AuthenticateTask(this, password));
 	}
+	m_currentTask->assignSession(session);
+
 	connect(m_currentTask.get(), SIGNAL(succeeded()), SLOT(authSucceeded()));
 	connect(m_currentTask.get(), SIGNAL(failed(QString)), SLOT(authFailed(QString)));
 	return m_currentTask;
@@ -189,24 +203,76 @@ std::shared_ptr<YggdrasilTask> MojangAccount::login(QString password)
 
 void MojangAccount::authSucceeded()
 {
-	m_online = true;
+	auto session = m_currentTask->getAssignedSession();
+	if (session)
+	{
+		session->status =
+			session->wants_online ? AuthSession::PlayableOnline : AuthSession::PlayableOffline;
+		fillSession(session);
+		session->auth_server_online = true;
+	}
 	m_currentTask.reset();
 	emit changed();
 }
 
 void MojangAccount::authFailed(QString reason)
 {
+	auto session = m_currentTask->getAssignedSession();
 	// This is emitted when the yggdrasil tasks time out or are cancelled.
 	// -> we treat the error as no-op
 	if (reason == "Yggdrasil task cancelled.")
 	{
-		// do nothing
+		if (session)
+		{
+			session->status = accountStatus() == Verified ? AuthSession::PlayableOffline
+														  : AuthSession::RequiresPassword;
+			session->auth_server_online = false;
+			fillSession(session);
+		}
 	}
 	else
 	{
-		m_online = false;
 		m_accessToken = QString();
 		emit changed();
+		if (session)
+		{
+			session->status = AuthSession::RequiresPassword;
+			session->auth_server_online = true;
+			fillSession(session);
+		}
 	}
 	m_currentTask.reset();
 }
+
+void MojangAccount::fillSession(AuthSessionPtr session)
+{
+	// the user name. you have to have an user name
+	session->username = m_username;
+	// volatile auth token
+	session->access_token = m_accessToken;
+	// the semi-permanent client token
+	session->client_token = m_clientToken;
+	if (currentProfile())
+	{
+		// profile name
+		session->player_name = currentProfile()->name;
+		// profile ID
+		session->uuid = currentProfile()->id;
+		// 'legacy' or 'mojang', depending on account type
+		session->user_type = currentProfile()->legacy ? "legacy" : "mojang";
+		if (!session->access_token.isEmpty())
+		{
+			session->session = "token:" + m_accessToken + ":" + m_profiles[m_currentProfile].id;
+		}
+		else
+		{
+			session->session = "-";
+		}
+	}
+	else
+	{
+		session->player_name = "Player";
+		session->session = "-";
+	}
+	session->u = user();
+}
diff --git a/logic/auth/MojangAccount.h b/logic/auth/MojangAccount.h
index dd5d54ae..a0565e2c 100644
--- a/logic/auth/MojangAccount.h
+++ b/logic/auth/MojangAccount.h
@@ -23,6 +23,7 @@
 #include <QMap>
 
 #include <memory>
+#include "AuthSession.h"
 
 class Task;
 class YggdrasilTask;
@@ -45,17 +46,10 @@ struct AccountProfile
 	bool legacy;
 };
 
-struct User
-{
-	QString id;
-	QMultiMap<QString,QString> properties;
-};
-
 enum AccountStatus
 {
 	NotVerified,
-	Verified,
-	Online
+	Verified
 };
 
 /**
@@ -84,7 +78,7 @@ public: /* construction */
 	QJsonObject saveToJson() const;
 
 public: /* manipulation */
-	/**
+		/**
 	 * Sets the currently selected profile to the profile with the given ID string.
 	 * If profileId is not in the list of available profiles, the function will simply return
 	 * false.
@@ -95,12 +89,9 @@ public: /* manipulation */
 	 * Attempt to login. Empty password means we use the token.
 	 * If the attempt fails because we already are performing some task, it returns false.
 	 */
-	std::shared_ptr<YggdrasilTask> login(QString password = QString());
+	std::shared_ptr<YggdrasilTask> login(AuthSessionPtr session,
+										 QString password = QString());
 
-	void downgrade()
-	{
-		m_online = false;
-	}
 public: /* queries */
 	const QString &username() const
 	{
@@ -122,19 +113,11 @@ public: /* queries */
 		return m_profiles;
 	}
 
-	const User & user()
+	const User &user()
 	{
 		return m_user;
 	}
 
-	//! Get the session ID required for legacy Minecraft versions
-	QString sessionId() const
-	{
-		if (m_currentProfile != -1 && !m_accessToken.isEmpty())
-			return "token:" + m_accessToken + ":" + m_profiles[m_currentProfile].id;
-		return "-";
-	}
-
 	//! Returns the currently selected profile (if none, returns nullptr)
 	const AccountProfile *currentProfile() const;
 
@@ -169,16 +152,17 @@ protected: /* variables */
 	// the user structure, whatever it is.
 	User m_user;
 
-	// true when the account is verified
-	bool m_online = false;
-
 	// current task we are executing here
 	std::shared_ptr<YggdrasilTask> m_currentTask;
 
-private slots:
+private
+slots:
 	void authSucceeded();
 	void authFailed(QString reason);
 
+private:
+	void fillSession(AuthSessionPtr session);
+
 public:
 	friend class YggdrasilTask;
 	friend class AuthenticateTask;
diff --git a/logic/auth/YggdrasilTask.h b/logic/auth/YggdrasilTask.h
index 85f5a1e1..4a87067a 100644
--- a/logic/auth/YggdrasilTask.h
+++ b/logic/auth/YggdrasilTask.h
@@ -36,6 +36,21 @@ public:
 	explicit YggdrasilTask(MojangAccount * account, QObject *parent = 0);
 
 	/**
+	 * assign a session to this task. the session will be filled with required infomration
+	 * upon completion
+	 */
+	void assignSession(AuthSessionPtr session)
+	{
+		m_session = session;
+	}
+
+	/// get the assigned session for filling with information.
+	AuthSessionPtr getAssignedSession()
+	{
+		return m_session;
+	}
+
+	/**
 	 * Class describing a Yggdrasil error response.
 	 */
 	struct Error
@@ -117,4 +132,6 @@ protected:
 
 	const int timeout_max = 10000;
 	const int time_step = 50;
+
+	AuthSessionPtr m_session;
 };
diff --git a/logic/auth/flows/RefreshTask.cpp b/logic/auth/flows/RefreshTask.cpp
index f63c736e..5a55ed91 100644
--- a/logic/auth/flows/RefreshTask.cpp
+++ b/logic/auth/flows/RefreshTask.cpp
@@ -25,8 +25,7 @@
 
 #include "logger/QsLog.h"
 
-RefreshTask::RefreshTask(MojangAccount *account, QObject *parent)
-	: YggdrasilTask(account, parent)
+RefreshTask::RefreshTask(MojangAccount *account) : YggdrasilTask(account)
 {
 }
 
@@ -126,7 +125,6 @@ bool RefreshTask::processResponse(QJsonObject responseData)
 		m_account->m_user = u;
 	}
 
-
 	// We've made it through the minefield of possible errors. Return true to indicate that
 	// we've succeeded.
 	QLOG_DEBUG() << "Finished reading refresh response.";
diff --git a/logic/auth/flows/RefreshTask.h b/logic/auth/flows/RefreshTask.h
index 2fd50c60..0dadc025 100644
--- a/logic/auth/flows/RefreshTask.h
+++ b/logic/auth/flows/RefreshTask.h
@@ -30,7 +30,7 @@ class RefreshTask : public YggdrasilTask
 {
 	Q_OBJECT
 public:
-	RefreshTask(MojangAccount * account, QObject *parent = 0);
+	RefreshTask(MojangAccount * account);
 
 protected:
 	virtual QJsonObject getRequestContent() const;
@@ -41,3 +41,4 @@ protected:
 
 	QString getStateMessage(const YggdrasilTask::State state) const;
 };
+
diff --git a/logic/net/NetJob.cpp b/logic/net/NetJob.cpp
index 8b79bc54..9e800d13 100644
--- a/logic/net/NetJob.cpp
+++ b/logic/net/NetJob.cpp
@@ -31,7 +31,6 @@ void NetJob::partSucceeded(int index)
 	num_succeeded++;
 	QLOG_INFO() << m_job_name.toLocal8Bit() << "progress:" << num_succeeded << "/"
 				<< downloads.size();
-	emit filesProgress(num_succeeded, num_failed, downloads.size());
 
 	if (num_failed + num_succeeded == downloads.size())
 	{
@@ -55,7 +54,6 @@ void NetJob::partFailed(int index)
 	{
 		QLOG_ERROR() << "Part" << index << "failed 3 times (" << downloads[index]->m_url << ")";
 		num_failed++;
-		emit filesProgress(num_succeeded, num_failed, downloads.size());
 		if (num_failed + num_succeeded == downloads.size())
 		{
 			QLOG_ERROR() << m_job_name.toLocal8Bit() << "failed.";
diff --git a/logic/net/NetJob.h b/logic/net/NetJob.h
index 68c4c408..03d6a36e 100644
--- a/logic/net/NetJob.h
+++ b/logic/net/NetJob.h
@@ -84,7 +84,6 @@ public:
 	{
 		return m_job_name;
 	}
-	;
 	virtual bool isRunning() const
 	{
 		return m_running;
@@ -94,7 +93,6 @@ public:
 signals:
 	void started();
 	void progress(qint64 current, qint64 total);
-	void filesProgress(int, int, int);
 	void succeeded();
 	void failed();
 public