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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.
*/
#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
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