diff options
Diffstat (limited to 'archived/projt-launcher/launcher/minecraft/launch/MinecraftTarget.cpp')
| -rw-r--r-- | archived/projt-launcher/launcher/minecraft/launch/MinecraftTarget.cpp | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/archived/projt-launcher/launcher/minecraft/launch/MinecraftTarget.cpp b/archived/projt-launcher/launcher/minecraft/launch/MinecraftTarget.cpp new file mode 100644 index 0000000000..5590ac05ed --- /dev/null +++ b/archived/projt-launcher/launcher/minecraft/launch/MinecraftTarget.cpp @@ -0,0 +1,120 @@ +// SPDX-License-Identifier: GPL-3.0-only AND Apache-2.0 +// 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. + * + * === Upstream License Block (Do Not Modify) ============================== + * + * Copyright 2013-2021 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 "MinecraftTarget.hpp" + +#include <QRegularExpression> +#include <QStringList> + +// Note: This parser intentionally mirrors Minecraft's address parsing behavior exactly, +// including its tolerance for malformed input. Invalid addresses resolve to unusable +// targets, which Minecraft handles at connection time. The isValid() method can be +// used by callers requiring validation. +MinecraftTarget MinecraftTarget::parse(const QString& fullAddress, bool useWorld) +{ + // Validate input - empty or whitespace-only addresses are invalid + QString trimmed = fullAddress.trimmed(); + if (trimmed.isEmpty()) + { + return MinecraftTarget{}; // Return empty target for invalid input + } + + if (useWorld) + { + MinecraftTarget target; + target.world = trimmed; + return target; + } + + QStringList split = trimmed.split(":"); + + // The logic below replicates the exact logic minecraft uses for parsing server addresses. + // While the conversion is not lossless and eats errors, it ensures the same behavior + // within Minecraft and ProjT Launcher when entering server addresses. + if (trimmed.startsWith("[")) + { + int bracket = trimmed.indexOf("]"); + if (bracket > 0) + { + QString ipv6 = trimmed.mid(1, bracket - 1); + QString port = trimmed.mid(bracket + 1).trimmed(); + + if (port.startsWith(":") && !ipv6.isEmpty()) + { + port = port.mid(1); + split = QStringList({ ipv6, port }); + } + else + { + split = QStringList({ ipv6 }); + } + } + } + + if (split.size() > 2) + { + split = QStringList({ trimmed }); + } + + QString realAddress = split[0]; + + // Validate address is not empty after parsing + if (realAddress.isEmpty()) + { + return MinecraftTarget{}; // Invalid address + } + + quint16 realPort = 25565; + if (split.size() > 1) + { + bool ok; + uint portValue = split[1].toUInt(&ok); + + // Validate port is in valid range (1-65535) + if (ok && portValue > 0 && portValue <= 65535) + { + realPort = static_cast<quint16>(portValue); + } + else + { + // Invalid port, use default + realPort = 25565; + } + } + + return MinecraftTarget{ realAddress, realPort }; +} |