More work on new assets system. Works given a properly constructed assets folder, no downloading yet

logic/OneSixInstance.cpp

@@ -26,6 +26,8 @@
 #include <JlCompress.h>
 #include "gui/dialogs/OneSixModEditDialog.h"
 #include "logger/QsLog.h"
+#include "logic/assets/AssetsIndex.h"
+#include "logic/assets/AssetsUtils.h"
 
 OneSixInstance::OneSixInstance(const QString &rootDir, SettingsObject *setting_obj,
 							   QObject *parent)
@@ -66,6 +68,63 @@ QString replaceTokensIn(QString text, QMap<QString, QString> with)
 	return result;
 }
 
+QDir OneSixInstance::reconstructAssets(std::shared_ptr<OneSixVersion> version)
+{
+	QDir assetsDir = QDir("assets/");
+	QDir indexDir = QDir(PathCombine(assetsDir.path(), "indexes"));
+	QDir objectDir = QDir(PathCombine(assetsDir.path(), "objects"));
+	QDir virtualDir = QDir(PathCombine(assetsDir.path(), "virtual"));
+
+	QString indexPath = PathCombine(indexDir.path(), version->assets + ".json");
+	QFile indexFile(indexPath);
+	QDir virtualRoot(PathCombine(virtualDir.path(), version->assets));
+
+	if(!indexFile.exists())
+	{
+		QLOG_ERROR() << "No assets index file" << indexPath << "; can't reconstruct assets";
+		return virtualRoot;
+	}
+
+	QLOG_DEBUG() << "reconstructAssets" << assetsDir.path() << indexDir.path() << objectDir.path() << virtualDir.path() << virtualRoot.path();
+
+	AssetsIndex index;
+	bool loadAssetsIndex = AssetsUtils::loadAssetsIndexJson(indexPath, &index);
+
+	if(loadAssetsIndex)
+	{
+		if(index.isVirtual)
+		{
+			QLOG_INFO() << "Reconstructing virtual assets folder at" << virtualRoot.path();
+
+			for(QString map : index.objects->keys())
+			{
+				AssetObject asset_object = index.objects->value(map);
+				QString target_path = PathCombine(virtualRoot.path(), map);
+				QFile target(target_path);
+
+				QString tlk = asset_object.hash.left(2);
+
+				QString original_path = PathCombine(PathCombine(objectDir.path(), tlk), asset_object.hash);
+				QFile original(original_path);
+				if(!target.exists())
+				{
+					QFileInfo info(target_path);
+					QDir target_dir = info.dir();
+					//QLOG_DEBUG() << target_dir;
+					if(!target_dir.exists()) QDir("").mkpath(target_dir.path());
+
+					bool couldCopy = original.copy(target_path);
+					QLOG_DEBUG() << " Copying" << original_path << "to" << target_path << QString::number(couldCopy);// << original.errorString();
+				}
+			}
+
+			// TODO: Write last used time to virtualRoot/.lastused
+		}
+	}
+
+	return virtualRoot;
+}
+
 QStringList OneSixInstance::processMinecraftArgs(MojangAccountPtr account)
 {
 	I_D(OneSixInstance);
@@ -93,10 +152,14 @@ QStringList OneSixInstance::processMinecraftArgs(MojangAccountPtr account)
 	QString absRootDir = QDir(minecraftRoot()).absolutePath();
 	token_mapping["game_directory"] = absRootDir;
 	QString absAssetsDir = QDir("assets/").absolutePath();
-	token_mapping["game_assets"] = absAssetsDir;
+	token_mapping["game_assets"] = reconstructAssets(d->version).absolutePath();
 	//TODO: this is something new and not even fully implemented in the vanilla launcher.
 	token_mapping["user_properties"] = "{ }";
 
+	// 1.7.3+ assets tokens
+	token_mapping["assets_root"] = absAssetsDir;
+	token_mapping["assets_index_name"] = version->assets;
+
 	QStringList parts = args_pattern.split(' ', QString::SkipEmptyParts);
 	for (int i = 0; i < parts.length(); i++)
 	{

logic/OneSixInstance.h

@@ -16,6 +16,7 @@
 #pragma once
 
 #include <QStringList>
+#include <QDir>
 
 #include "BaseInstance.h"
 
@@ -73,4 +74,5 @@ public:
 
 private:
 	QStringList processMinecraftArgs(MojangAccountPtr account);
+	QDir reconstructAssets(std::shared_ptr<OneSixVersion> version);
 };

logic/OneSixVersion.cpp

@@ -17,6 +17,8 @@
 #include "logic/OneSixLibrary.h"
 #include "logic/OneSixRule.h"
 
+#include "logger/QsLog.h"
+
 std::shared_ptr<OneSixVersion> fromJsonV4(QJsonObject root,
 										  std::shared_ptr<OneSixVersion> fullVersion)
 {
@@ -60,6 +62,18 @@ std::shared_ptr<OneSixVersion> fromJsonV4(QJsonObject root,
 	fullVersion->releaseTime = root.value("releaseTime").toString();
 	fullVersion->time = root.value("time").toString();
 
+	auto assetsID = root.value("assets");
+	if (assetsID.isString())
+	{
+		fullVersion->assets = assetsID.toString();
+	}
+	else
+	{
+		fullVersion->assets = "legacy";
+	}
+
+	QLOG_DEBUG() << "Assets version:" << fullVersion->assets;
+
 	// Iterate through the list, if it's a list.
 	auto librariesValue = root.value("libraries");
 	if (!librariesValue.isArray())
@@ -151,7 +165,7 @@ std::shared_ptr<OneSixVersion> OneSixVersion::fromJson(QJsonObject root)
 		root.value("minimumLauncherVersion").toDouble();
 
 	// ADD MORE HERE :D
-	if (launcher_ver > 0 && launcher_ver <= 11)
+	if (launcher_ver > 0 && launcher_ver <= 12)
 		return fromJsonV4(root, readVersion);
 	else
 	{

logic/OneSixVersion.h

@@ -56,6 +56,8 @@ public:
 	QString releaseTime;
 	/// Release type - "release" or "snapshot"
 	QString type;
+	/// Assets type - "legacy" or a version ID
+	QString assets;
 	/**
 	 * DEPRECATED: Old versions of the new vanilla launcher used this
 	 * ex: "username_session_version"

logic/assets/AssetsIndex.cpp

@@ -15,6 +15,17 @@
 
 #include "AssetsIndex.h"
 
+AssetsIndex::AssetsIndex()
+{
+	// TODO: leak?
+	this->objects = new QMap<QString, AssetObject>();
+	this->isVirtual = false;
+}
+
 AssetObject::AssetObject(QString hash, qint64 size) : hash(hash), size(size)
 {
 }
+
+AssetObject::AssetObject()
+{
+}

logic/assets/AssetsIndex.h

@@ -23,14 +23,17 @@ class AssetObject;
 class AssetsIndex
 {
 public:
-	QMap<QString, AssetObject> objects;
+	QMap<QString, AssetObject> *objects;
 	bool isVirtual;
+
+	AssetsIndex();
 };
 
 class AssetObject
 {
 public:
 	AssetObject(QString hash, qint64 size);
+	AssetObject();
 	bool equals(AssetObject* other);
 	QString getHashCode();
 

logic/assets/AssetsUtils.cpp

@@ -16,6 +16,9 @@
 #include <QDir>
 #include <QDirIterator>
 #include <QCryptographicHash>
+#include <QJsonParseError>
+#include <QJsonDocument>
+#include <QJsonObject>
 
 #include "AssetsUtils.h"
 #include "MultiMC.h"
@@ -112,4 +115,110 @@ void migrateOldAssets()
 		}
 	}
 }
+
+/*
+ * Returns true on success, with index populated
+ * index is undefined otherwise
+ */
+bool loadAssetsIndexJson(QString path, AssetsIndex *index)
+{
+/*
+{
+  "objects": {
+	"icons/icon_16x16.png": {
+	  "hash": "bdf48ef6b5d0d23bbb02e17d04865216179f510a",
+	  "size": 3665
+	},
+	...
+	}
+  }
+}
+*/
+
+	QFile file(path);
+
+	// Try to open the file and fail if we can't.
+	// TODO: We should probably report this error to the user.
+	if (!file.open(QIODevice::ReadOnly))
+	{
+		QLOG_ERROR() << "Failed to read assets index file" << path;
+		return false;
+	}
+
+	// Read the file and close it.
+	QByteArray jsonData = file.readAll();
+	file.close();
+
+	QJsonParseError parseError;
+	QJsonDocument jsonDoc = QJsonDocument::fromJson(jsonData, &parseError);
+
+	// Fail if the JSON is invalid.
+	if (parseError.error != QJsonParseError::NoError)
+	{
+		QLOG_ERROR() << "Failed to parse assets index file:" << parseError.errorString() << "at offset " << QString::number(parseError.offset);
+		return false;
+	}
+
+	// Make sure the root is an object.
+	if (!jsonDoc.isObject())
+	{
+		QLOG_ERROR() << "Invalid assets index JSON: Root should be an array.";
+		return false;
+	}
+
+	QJsonObject root = jsonDoc.object();
+
+	QJsonValue isVirtual = root.value("virtual");
+	if(!isVirtual.isUndefined())
+	{
+		index->isVirtual = isVirtual.toBool(false);
+	}
+
+	QJsonValue objects = root.value("objects");
+	QVariantMap map = objects.toVariant().toMap();
+
+	for(QVariantMap::const_iterator iter = map.begin(); iter != map.end(); ++iter) {
+		//QLOG_DEBUG() << iter.key();
+
+		QVariant variant = iter.value();
+		QVariantMap nested_objects = variant.toMap();
+
+		AssetObject object;
+
+		for(QVariantMap::const_iterator nested_iter = nested_objects.begin(); nested_iter != nested_objects.end(); ++nested_iter) {
+			//QLOG_DEBUG() << nested_iter.key() << nested_iter.value().toString();
+			QString key = nested_iter.key();
+			QVariant value = nested_iter.value();
+
+			if(key == "hash")
+			{
+				object.hash = value.toString();
+			}
+			else if(key == "size")
+			{
+				object.size = value.toDouble();
+			}
+		}
+
+		index->objects->insert(iter.key(), object);
+	}
+
+	return true;
+	/*for (QJsonValue accountVal : objects)
+	{
+		QJsonObject accountObj = accountVal.toObject();
+		MojangAccountPtr account = MojangAccount::loadFromJson(accountObj);
+		if (account.get() != nullptr)
+		{
+			connect(account.get(), SIGNAL(changed()), SLOT(accountChanged()));
+			m_accounts.append(account);
+		}
+		else
+		{
+			QLOG_WARN() << "Failed to load an account.";
+		}
+	}*/
+
+	//return false;
+}
 }

logic/assets/AssetsUtils.h

@@ -15,7 +15,10 @@
 
 #pragma once
 
+#include "AssetsIndex.h"
+
 namespace AssetsUtils
 {
 void migrateOldAssets();
+bool loadAssetsIndexJson(QString file, AssetsIndex* index);
 }