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diff --git a/archived/projt-launcher/launcher/minecraft/MojangDownloadInfo.h b/archived/projt-launcher/launcher/minecraft/MojangDownloadInfo.h
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+++ b/archived/projt-launcher/launcher/minecraft/MojangDownloadInfo.h
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+// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-FileCopyrightText: 2026 Project Tick
+// SPDX-FileContributor: Project Tick Team
+/*
+ *  ProjT Launcher - Minecraft Launcher
+ *  Copyright (C) 2026 Project Tick
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, write to the Free Software Foundation,
+ *  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+#pragma once
+#include <QMap>
+#include <QString>
+#include <memory>
+
+struct MojangDownloadInfo
+{
+	// types
+	using Ptr = std::shared_ptr<MojangDownloadInfo>;
+
+	// data
+	/// Local filesystem path. WARNING: not used, only here so we can pass through mojang files unmolested!
+	QString path;
+	/// absolute URL of this file
+	QString url;
+	/// sha-1 checksum of the file
+	QString sha1;
+	/// size of the file in bytes
+	int size;
+};
+
+struct MojangLibraryDownloadInfo
+{
+	MojangLibraryDownloadInfo(MojangDownloadInfo::Ptr artifact_) : artifact(artifact_)
+	{}
+	MojangLibraryDownloadInfo()
+	{}
+
+	// types
+	using Ptr = std::shared_ptr<MojangLibraryDownloadInfo>;
+
+	// methods
+	MojangDownloadInfo* getDownloadInfo(QString classifier)
+	{
+		if (classifier.isNull())
+		{
+			return artifact.get();
+		}
+
+		return classifiers[classifier].get();
+	}
+
+	// data
+	MojangDownloadInfo::Ptr artifact;
+	QMap<QString, MojangDownloadInfo::Ptr> classifiers;
+};
+
+struct MojangAssetIndexInfo : public MojangDownloadInfo
+{
+	// types
+	using Ptr = std::shared_ptr<MojangAssetIndexInfo>;
+
+	// methods
+	MojangAssetIndexInfo()
+	{}
+
+	MojangAssetIndexInfo(QString id_)
+	{
+		this->id = id_;
+		// HACK: ignore assets from other version files than Minecraft
+		// workaround for stupid assets issue caused by amazon:
+		// https://www.theregister.co.uk/2017/02/28/aws_is_awol_as_s3_goes_haywire/
+		if (id_ == "legacy")
+		{
+			url =
+				"https://piston-meta.mojang.com/mc/assets/legacy/c0fd82e8ce9fbc93119e40d96d5a4e62cfa3f729/legacy.json";
+		}
+		// HACK
+		else
+		{
+			url = "https://s3.amazonaws.com/Minecraft.Download/indexes/" + id_ + ".json";
+		}
+		known = false;
+	}
+
+	// data
+	int totalSize;
+	QString id;
+	bool known = true;
+};