1 files changed, 133 insertions, 0 deletions
diff --git a/archived/projt-launcher/launcher/launch/steps/ServerJoinResolveStep.cpp b/archived/projt-launcher/launcher/launch/steps/ServerJoinResolveStep.cpp
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index 0000000000..4b23e9a4d5
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+++ b/archived/projt-launcher/launcher/launch/steps/ServerJoinResolveStep.cpp
@@ -0,0 +1,133 @@
+// 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.
+ */
+
+#include "ServerJoinResolveStep.hpp"
+
+#include <launch/LaunchPipeline.hpp>
+
+#include <QDnsLookup>
+
+namespace projt::launch::steps
+{
+	ServerJoinResolveStep::ServerJoinResolveStep(projt::launch::LaunchPipeline* parent)
+		: projt::launch::LaunchStage(parent)
+	{
+		auto lookup = new QDnsLookup(this);
+		lookup->setType(QDnsLookup::SRV);
+		connect(lookup, &QDnsLookup::finished, this, &ServerJoinResolveStep::onLookupFinished);
+		m_lookup = lookup;
+	}
+
+	void ServerJoinResolveStep::setLookupAddress(const QString& address)
+	{
+		m_lookupAddress = address;
+		m_queryName		= QString("_minecraft._tcp.%1").arg(address);
+		if (m_lookup)
+		{
+			m_lookup->setName(m_queryName);
+		}
+	}
+
+	void ServerJoinResolveStep::setOutputTarget(MinecraftTarget::Ptr target)
+	{
+		m_output = target;
+	}
+
+	void ServerJoinResolveStep::executeTask()
+	{
+		if (!m_lookup)
+		{
+			emitFailed(QString("DNS lookup failed to initialize."));
+			return;
+		}
+		if (m_lookupAddress.isEmpty())
+		{
+			emitFailed(QString("Server address is empty."));
+			return;
+		}
+		if (!m_output)
+		{
+			emitFailed(QString("Server target is missing."));
+			return;
+		}
+		m_lookup->lookup();
+	}
+
+	bool ServerJoinResolveStep::abort()
+	{
+		if (m_lookup)
+		{
+			m_lookup->abort();
+		}
+		emitAborted();
+		return true;
+	}
+
+	void ServerJoinResolveStep::onLookupFinished()
+	{
+		if (isFinished())
+		{
+			return;
+		}
+		if (!m_lookup)
+		{
+			emitFailed(QString("DNS lookup failed to initialize."));
+			return;
+		}
+
+		if (m_lookup->error() != QDnsLookup::NoError)
+		{
+			emit logLine(QString("Failed to resolve server address (this is NOT an error!) %1: %2\n")
+							 .arg(m_lookup->name(), m_lookup->errorString()),
+						 MessageLevel::Launcher);
+			finalizeTarget(m_lookupAddress, 25565);
+			return;
+		}
+
+		const auto records = m_lookup->serviceRecords();
+		if (records.empty())
+		{
+			emit logLine(
+				QString(
+					"Failed to resolve server address %1: the DNS lookup succeeded, but no records were returned.\n")
+					.arg(m_lookup->name()),
+				MessageLevel::Warning);
+			finalizeTarget(m_lookupAddress, 25565);
+			return;
+		}
+
+		const auto& firstRecord = records.at(0);
+		quint16 port			= firstRecord.port();
+
+		emit logLine(QString("Resolved server address %1 to %2 with port %3\n")
+						 .arg(m_lookup->name(), firstRecord.target(), QString::number(port)),
+					 MessageLevel::Launcher);
+		finalizeTarget(firstRecord.target(), port);
+	}
+
+	void ServerJoinResolveStep::finalizeTarget(const QString& address, quint16 port)
+	{
+		m_output->address = address;
+		m_output->port	  = port;
+
+		emitSucceeded();
+	}
+} // namespace projt::launch::steps