New, better, liteloader support

12 files changed, 355 insertions, 51 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4e7dea67..4ea4c27a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -460,6 +460,8 @@ logic/lists/ForgeVersionList.h
 logic/lists/ForgeVersionList.cpp
 logic/lists/JavaVersionList.h
 logic/lists/JavaVersionList.cpp
+logic/lists/LiteLoaderVersionList.h
+logic/lists/LiteLoaderVersionList.cpp
 
 # Icons
 logic/icons/MMCIcon.h
diff --git a/MultiMC.cpp b/MultiMC.cpp
index 598a3a80..39a4443e 100644
--- a/MultiMC.cpp
+++ b/MultiMC.cpp
@@ -17,6 +17,7 @@
 #include "logic/lists/LwjglVersionList.h"
 #include "logic/lists/MinecraftVersionList.h"
 #include "logic/lists/ForgeVersionList.h"
+#include "logic/lists/LiteLoaderVersionList.h"
 
 #include "logic/news/NewsChecker.h"
 
@@ -536,6 +537,15 @@ std::shared_ptr<ForgeVersionList> MultiMC::forgelist()
 	return m_forgelist;
 }
 
+std::shared_ptr<LiteLoaderVersionList> MultiMC::liteloaderlist()
+{
+	if (!m_liteloaderlist)
+	{
+		m_liteloaderlist.reset(new LiteLoaderVersionList());
+	}
+	return m_liteloaderlist;
+}
+
 std::shared_ptr<MinecraftVersionList> MultiMC::minecraftlist()
 {
 	if (!m_minecraftlist)
diff --git a/MultiMC.h b/MultiMC.h
index 638a442f..f68c3cea 100644
--- a/MultiMC.h
+++ b/MultiMC.h
@@ -17,6 +17,7 @@ class MojangAccountList;
 class IconList;
 class QNetworkAccessManager;
 class ForgeVersionList;
+class LiteLoaderVersionList;
 class JavaVersionList;
 class UpdateChecker;
 class NotificationChecker;
@@ -123,6 +124,8 @@ public:
 
 	std::shared_ptr<ForgeVersionList> forgelist();
 
+	std::shared_ptr<LiteLoaderVersionList> liteloaderlist();
+
 	std::shared_ptr<MinecraftVersionList> minecraftlist();
 
 	std::shared_ptr<JavaVersionList> javalist();
@@ -196,6 +199,7 @@ private:
 	std::shared_ptr<HttpMetaCache> m_metacache;
 	std::shared_ptr<LWJGLVersionList> m_lwjgllist;
 	std::shared_ptr<ForgeVersionList> m_forgelist;
+	std::shared_ptr<LiteLoaderVersionList> m_liteloaderlist;
 	std::shared_ptr<MinecraftVersionList> m_minecraftlist;
 	std::shared_ptr<JavaVersionList> m_javalist;
 	QsLogging::DestinationPtr m_fileDestination;
diff --git a/gui/dialogs/OneSixModEditDialog.cpp b/gui/dialogs/OneSixModEditDialog.cpp
index 9e585de5..fe621a9a 100644
--- a/gui/dialogs/OneSixModEditDialog.cpp
+++ b/gui/dialogs/OneSixModEditDialog.cpp
@@ -37,6 +37,7 @@
 #include "logic/OneSixVersion.h"
 #include "logic/EnabledItemFilter.h"
 #include "logic/lists/ForgeVersionList.h"
+#include "logic/lists/LiteLoaderVersionList.h"
 #include "logic/ForgeInstaller.h"
 #include "logic/LiteLoaderInstaller.h"
 #include "logic/OneSixVersionBuilder.h"
@@ -108,7 +109,7 @@ OneSixModEditDialog::~OneSixModEditDialog()
 void OneSixModEditDialog::updateVersionControls()
 {
 	ui->forgeBtn->setEnabled(true);
-	ui->liteloaderBtn->setEnabled(LiteLoaderInstaller().canApply(m_inst));
+	ui->liteloaderBtn->setEnabled(true);
 	ui->mainClassEdit->setText(m_version->mainClass);
 }
 
@@ -290,24 +291,27 @@ void OneSixModEditDialog::on_liteloaderBtn_clicked()
 		QDir(m_inst->instanceRoot()).remove("custom.json");
 		m_inst->reloadVersion(this);
 	}
-	LiteLoaderInstaller liteloader;
-	if (!liteloader.canApply(m_inst))
-	{
-		QMessageBox::critical(
-			this, tr("LiteLoader"),
-			tr("There is no information available on how to install LiteLoader "
-			   "into this version of Minecraft"));
-		return;
-	}
-	if (!liteloader.add(m_inst))
-	{
-		QMessageBox::critical(this, tr("LiteLoader"),
-							  tr("For reasons unknown, the LiteLoader installation failed. "
-								 "Check your MultiMC log files for details."));
-	}
-	else
+	VersionSelectDialog vselect(MMC->liteloaderlist().get(), tr("Select LiteLoader version"), this);
+	vselect.setFilter(1, m_inst->currentVersionId());
+	vselect.setEmptyString(tr("No LiteLoader versions are currently available for Minecraft ") +
+							  m_inst->currentVersionId());
+	if (vselect.exec() && vselect.selectedVersion())
 	{
-		m_inst->reloadVersion(this);
+		LiteLoaderVersionPtr liteloaderVersion =
+				std::dynamic_pointer_cast<LiteLoaderVersion>(vselect.selectedVersion());
+		if (!liteloaderVersion)
+			return;
+		LiteLoaderInstaller liteloader(liteloaderVersion);
+		if (!liteloader.add(m_inst))
+		{
+			QMessageBox::critical(this, tr("LiteLoader"),
+								  tr("For reasons unknown, the LiteLoader installation failed. "
+									 "Check your MultiMC log files for details."));
+		}
+		else
+		{
+			m_inst->reloadVersion(this);
+		}
 	}
 }
 
diff --git a/gui/dialogs/VersionSelectDialog.cpp b/gui/dialogs/VersionSelectDialog.cpp
index 0f379f56..3277fd2f 100644
--- a/gui/dialogs/VersionSelectDialog.cpp
+++ b/gui/dialogs/VersionSelectDialog.cpp
@@ -82,6 +82,7 @@ void VersionSelectDialog::loadList()
 	Task *loadTask = m_vlist->getLoadTask();
 	loadTask->setParent(taskDlg);
 	taskDlg->exec(loadTask);
+	delete taskDlg;
 }
 
 BaseVersionPtr VersionSelectDialog::selectedVersion() const
diff --git a/logic/BaseInstaller.h b/logic/BaseInstaller.h
index df7eab89..c572e004 100644
--- a/logic/BaseInstaller.h
+++ b/logic/BaseInstaller.h
@@ -26,7 +26,6 @@ class BaseInstaller
 public:
 	BaseInstaller();
 
-	virtual bool canApply(OneSixInstance *instance) const { return true; }
 	bool isApplied(OneSixInstance *on);
 
 	virtual bool add(OneSixInstance *to);
diff --git a/logic/LiteLoaderInstaller.cpp b/logic/LiteLoaderInstaller.cpp
index c363cad6..126027fb 100644
--- a/logic/LiteLoaderInstaller.cpp
+++ b/logic/LiteLoaderInstaller.cpp
@@ -24,23 +24,9 @@
 #include "OneSixLibrary.h"
 #include "OneSixInstance.h"
 
-QMap<QString, QString> LiteLoaderInstaller::m_launcherWrapperVersionMapping;
-
-LiteLoaderInstaller::LiteLoaderInstaller()
-	: BaseInstaller()
-{
-	if (m_launcherWrapperVersionMapping.isEmpty())
-	{
-		m_launcherWrapperVersionMapping["1.6.2"] = "1.3";
-		m_launcherWrapperVersionMapping["1.6.4"] = "1.8";
-		//m_launcherWrapperVersionMapping["1.7.2"] = "1.8";
-		//m_launcherWrapperVersionMapping["1.7.4"] = "1.8";
-	}
-}
-
-bool LiteLoaderInstaller::canApply(OneSixInstance *instance) const
+LiteLoaderInstaller::LiteLoaderInstaller(LiteLoaderVersionPtr version)
+	: BaseInstaller(), m_version(version)
 {
-	return m_launcherWrapperVersionMapping.contains(instance->intendedVersionId());
 }
 
 bool LiteLoaderInstaller::add(OneSixInstance *to)
@@ -53,24 +39,26 @@ bool LiteLoaderInstaller::add(OneSixInstance *to)
 	QJsonObject obj;
 
 	obj.insert("mainClass", QString("net.minecraft.launchwrapper.Launch"));
-	obj.insert("+tweakers", QJsonArray::fromStringList(QStringList() << "com.mumfrey.liteloader.launch.LiteLoaderTweaker"));
+	obj.insert("+tweakers", QJsonArray::fromStringList(QStringList() << m_version->tweakClass));
 	obj.insert("order", 10);
 
 	QJsonArray libraries;
 
-	// launchwrapper
+	for (auto libStr : m_version->libraries)
 	{
-		OneSixLibrary launchwrapperLib("net.minecraft:launchwrapper:" + m_launcherWrapperVersionMapping[to->intendedVersionId()]);
-		launchwrapperLib.finalize();
-		QJsonObject lwLibObj = launchwrapperLib.toJson();
-		lwLibObj.insert("insert", QString("prepend"));
-		libraries.append(lwLibObj);
+		OneSixLibrary lib(libStr);
+		lib.finalize();
+		QJsonObject libObj = lib.toJson();
+		libObj.insert("insert", QString("prepend"));
+		libraries.append(libObj);
 	}
 
 	// liteloader
 	{
-		OneSixLibrary liteloaderLib("com.mumfrey:liteloader:" + to->intendedVersionId());
-		liteloaderLib.setBaseUrl("http://dl.liteloader.com/versions/");
+		OneSixLibrary liteloaderLib("com.mumfrey:liteloader:" + m_version->version);
+		liteloaderLib.setAbsoluteUrl(
+			QString("http://dl.liteloader.com/versions/com/mumfrey/liteloader/%1/%2")
+				.arg(m_version->mcVersion, m_version->file));
 		liteloaderLib.finalize();
 		QJsonObject llLibObj = liteloaderLib.toJson();
 		llLibObj.insert("insert", QString("prepend"));
@@ -87,7 +75,8 @@ bool LiteLoaderInstaller::add(OneSixInstance *to)
 	QFile file(filename(to->instanceRoot()));
 	if (!file.open(QFile::WriteOnly))
 	{
-		QLOG_ERROR() << "Error opening" << file.fileName() << "for reading:" << file.errorString();
+		QLOG_ERROR() << "Error opening" << file.fileName()
+					 << "for reading:" << file.errorString();
 		return false;
 	}
 	file.write(QJsonDocument(obj).toJson());
diff --git a/logic/LiteLoaderInstaller.h b/logic/LiteLoaderInstaller.h
index 5e01b16c..2e0de64a 100644
--- a/logic/LiteLoaderInstaller.h
+++ b/logic/LiteLoaderInstaller.h
@@ -20,16 +20,19 @@
 #include <QString>
 #include <QMap>
 
+#include "logic/lists/LiteLoaderVersionList.h"
+
 class LiteLoaderInstaller : public BaseInstaller
 {
 public:
-	LiteLoaderInstaller();
+	LiteLoaderInstaller(LiteLoaderVersionPtr version);
 
-	bool canApply(OneSixInstance *instance) const override;
 	bool add(OneSixInstance *to) override;
 
 private:
-	virtual QString id() const override { return "com.mumfrey.liteloader"; }
-
-	static QMap<QString, QString> m_launcherWrapperVersionMapping;
+	virtual QString id() const override
+	{
+		return "com.mumfrey.liteloader";
+	}
+	LiteLoaderVersionPtr m_version;
 };
diff --git a/logic/lists/LiteLoaderVersionList.cpp b/logic/lists/LiteLoaderVersionList.cpp
new file mode 100644
index 00000000..b8cea442
--- /dev/null
+++ b/logic/lists/LiteLoaderVersionList.cpp
@@ -0,0 +1,190 @@
+/* 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 "LiteLoaderVersionList.h"
+#include "MultiMC.h"
+#include "logic/net/URLConstants.h"
+
+#include <QtXml>
+
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QJsonArray>
+#include <QJsonValue>
+#include <QJsonParseError>
+
+#include <QtAlgorithms>
+
+#include <QtNetwork>
+
+LiteLoaderVersionList::LiteLoaderVersionList(QObject *parent) : BaseVersionList(parent)
+{
+}
+
+Task *LiteLoaderVersionList::getLoadTask()
+{
+	return new LLListLoadTask(this);
+}
+
+bool LiteLoaderVersionList::isLoaded()
+{
+	return m_loaded;
+}
+
+const BaseVersionPtr LiteLoaderVersionList::at(int i) const
+{
+	return m_vlist.at(i);
+}
+
+int LiteLoaderVersionList::count() const
+{
+	return m_vlist.count();
+}
+
+static bool cmpVersions(BaseVersionPtr first, BaseVersionPtr second)
+{
+	auto left = std::dynamic_pointer_cast<LiteLoaderVersion>(first);
+	auto right = std::dynamic_pointer_cast<LiteLoaderVersion>(second);
+	return left->timestamp > right->timestamp;
+}
+
+void LiteLoaderVersionList::sort()
+{
+	beginResetModel();
+	qSort(m_vlist.begin(), m_vlist.end(), cmpVersions);
+	endResetModel();
+}
+
+BaseVersionPtr LiteLoaderVersionList::getLatestStable() const
+{
+	for (int i = 0; i < m_vlist.length(); i++)
+	{
+		auto ver = std::dynamic_pointer_cast<LiteLoaderVersion>(m_vlist.at(i));
+		if (ver->isLatest)
+		{
+			return m_vlist.at(i);
+		}
+	}
+	return BaseVersionPtr();
+}
+
+void LiteLoaderVersionList::updateListData(QList<BaseVersionPtr> versions)
+{
+	beginResetModel();
+	m_vlist = versions;
+	m_loaded = true;
+	qSort(m_vlist.begin(), m_vlist.end(), cmpVersions);
+	endResetModel();
+}
+
+LLListLoadTask::LLListLoadTask(LiteLoaderVersionList *vlist)
+{
+	m_list = vlist;
+	vlistReply = nullptr;
+}
+
+LLListLoadTask::~LLListLoadTask()
+{
+}
+
+void LLListLoadTask::executeTask()
+{
+	setStatus(tr("Loading LiteLoader version list..."));
+	auto worker = MMC->qnam();
+	vlistReply = worker->get(QNetworkRequest(QUrl(URLConstants::LITELOADER_URL)));
+	connect(vlistReply, SIGNAL(finished()), this, SLOT(listDownloaded()));
+}
+
+void LLListLoadTask::listDownloaded()
+{
+	if (vlistReply->error() != QNetworkReply::NoError)
+	{
+		vlistReply->deleteLater();
+		emitFailed("Failed to load LiteLoader version list" + vlistReply->errorString());
+		return;
+	}
+
+	QJsonParseError jsonError;
+	QJsonDocument jsonDoc = QJsonDocument::fromJson(vlistReply->readAll(), &jsonError);
+	vlistReply->deleteLater();
+
+	if (jsonError.error != QJsonParseError::NoError)
+	{
+		emitFailed("Error parsing version list JSON:" + jsonError.errorString());
+		return;
+	}
+
+	if (!jsonDoc.isObject())
+	{
+		emitFailed("Error parsing version list JSON: jsonDoc is not an object");
+		return;
+	}
+
+	const QJsonObject root = jsonDoc.object();
+
+	// Now, get the array of versions.
+	if (!root.value("versions").isObject())
+	{
+		emitFailed("Error parsing version list JSON: missing 'versions' object");
+		return;
+	}
+	const QJsonObject versions = root.value("versions").toObject();
+
+	QList<BaseVersionPtr> tempList;
+	for (auto vIt = versions.begin(); vIt != versions.end(); ++vIt)
+	{
+		const QString mcVersion = vIt.key();
+		QString latest;
+		const QJsonObject artefacts = vIt.value()
+										  .toObject()
+										  .value("artefacts")
+										  .toObject()
+										  .value("com.mumfrey:liteloader")
+										  .toObject();
+		QList<BaseVersionPtr> perMcVersionList;
+		for (auto aIt = artefacts.begin(); aIt != artefacts.end(); ++aIt)
+		{
+			const QString identifier = aIt.key();
+			const QJsonObject artefact = aIt.value().toObject();
+			if (identifier == "latest")
+			{
+				latest = artefact.value("version").toString();
+				continue;
+			}
+			LiteLoaderVersionPtr version(new LiteLoaderVersion());
+			version->version = artefact.value("version").toString();
+			version->file = artefact.value("file").toString();
+			version->mcVersion = mcVersion;
+			version->md5 = artefact.value("md5").toString();
+			version->timestamp = artefact.value("timestamp").toDouble();
+			version->tweakClass = artefact.value("tweakClass").toString();
+			const QJsonArray libs = artefact.value("libraries").toArray();
+			for (auto lIt = libs.begin(); lIt != libs.end(); ++lIt)
+			{
+				version->libraries.append((*lIt).toObject().value("name").toString());
+			}
+			perMcVersionList.append(version);
+		}
+		for (auto version : perMcVersionList)
+		{
+			auto v = std::dynamic_pointer_cast<LiteLoaderVersion>(version);
+			v->isLatest = v->version == latest;
+		}
+		tempList.append(perMcVersionList);
+	}
+	m_list->updateListData(tempList);
+
+	emitSucceeded();
+}
diff --git a/logic/lists/LiteLoaderVersionList.h b/logic/lists/LiteLoaderVersionList.h
new file mode 100644
index 00000000..58927b8f
--- /dev/null
+++ b/logic/lists/LiteLoaderVersionList.h
@@ -0,0 +1,101 @@
+/* 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 "BaseVersionList.h"
+#include "logic/tasks/Task.h"
+#include "logic/BaseVersion.h"
+
+class LLListLoadTask;
+class QNetworkReply;
+
+class LiteLoaderVersion : public BaseVersion
+{
+public:
+	QString descriptor() override
+	{
+		if (isLatest)
+		{
+			return QObject::tr("Latest");
+		}
+		return QString();
+	}
+	QString typeString() const override
+	{
+		return mcVersion;
+	}
+	QString name() override
+	{
+		return version;
+	}
+
+	QString version;
+	QString file;
+	QString mcVersion;
+	QString md5;
+	int timestamp;
+	bool isLatest;
+	QString tweakClass;
+	QStringList libraries;
+};
+typedef std::shared_ptr<LiteLoaderVersion> LiteLoaderVersionPtr;
+
+class LiteLoaderVersionList : public BaseVersionList
+{
+	Q_OBJECT
+public:
+	friend class LLListLoadTask;
+
+	explicit LiteLoaderVersionList(QObject *parent = 0);
+
+	virtual Task *getLoadTask();
+	virtual bool isLoaded();
+	virtual const BaseVersionPtr at(int i) const;
+	virtual int count() const;
+	virtual void sort();
+
+	virtual BaseVersionPtr getLatestStable() const;
+
+protected:
+	QList<BaseVersionPtr> m_vlist;
+
+	bool m_loaded = false;
+
+protected
+slots:
+	virtual void updateListData(QList<BaseVersionPtr> versions);
+};
+
+class LLListLoadTask : public Task
+{
+	Q_OBJECT
+
+public:
+	explicit LLListLoadTask(LiteLoaderVersionList *vlist);
+	~LLListLoadTask();
+
+	virtual void executeTask();
+
+protected
+slots:
+	void listDownloaded();
+
+protected:
+	QNetworkReply *vlistReply;
+	LiteLoaderVersionList *m_list;
+};
diff --git a/logic/lists/MinecraftVersionList.cpp b/logic/lists/MinecraftVersionList.cpp
index ece31e3d..b9d60c61 100644
--- a/logic/lists/MinecraftVersionList.cpp
+++ b/logic/lists/MinecraftVersionList.cpp
@@ -53,7 +53,7 @@ int MinecraftVersionList::count() const
 	return m_vlist.count();
 }
 
-bool cmpVersions(BaseVersionPtr first, BaseVersionPtr second)
+static bool cmpVersions(BaseVersionPtr first, BaseVersionPtr second)
 {
 	auto left = std::dynamic_pointer_cast<MinecraftVersion>(first);
 	auto right = std::dynamic_pointer_cast<MinecraftVersion>(second);
diff --git a/logic/net/URLConstants.h b/logic/net/URLConstants.h
index 8cb1f3fd..07b35c4f 100644
--- a/logic/net/URLConstants.h
+++ b/logic/net/URLConstants.h
@@ -33,4 +33,5 @@ const QString FORGE_LEGACY_URL("http://files.minecraftforge.net/minecraftforge/j
 const QString FORGE_GRADLE_URL("http://files.minecraftforge.net/maven/net/minecraftforge/forge/json");
 const QString MOJANG_STATUS_URL("http://status.mojang.com/check");
 const QString MOJANG_STATUS_NEWS_URL("http://status.mojang.com/news");
+const QString LITELOADER_URL("http://dl.liteloader.com/versions/versions.json");
 }