sneedmc/launcher/minecraft/Rule.h

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// SPDX-License-Identifier: GPL-3.0-only
/*
* PolyMC - Minecraft Launcher
* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
*
* 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, see <https://www.gnu.org/licenses/>.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* 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.
*/
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#pragma once
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#include <QString>
#include <QList>
#include <QJsonObject>
#include <memory>
#include "RuntimeContext.h"
class Library;
class Rule;
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enum RuleAction
{
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Allow,
Disallow,
Defer
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};
QList<std::shared_ptr<Rule>> rulesFromJsonV4(const QJsonObject &objectWithRules);
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class Rule
{
protected:
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RuleAction m_result;
virtual bool applies(const Library *parent, const RuntimeContext & runtimeContext) = 0;
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public:
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Rule(RuleAction result) : m_result(result)
{
}
virtual ~Rule() {};
virtual QJsonObject toJson() = 0;
RuleAction apply(const Library *parent, const RuntimeContext & runtimeContext)
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{
if (applies(parent, runtimeContext))
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return m_result;
else
return Defer;
}
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};
class OsRule : public Rule
{
private:
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// the OS
QString m_system;
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// the OS version regexp
QString m_version_regexp;
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protected:
virtual bool applies(const Library *, const RuntimeContext & runtimeContext)
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{
return runtimeContext.classifierMatches(m_system);
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}
OsRule(RuleAction result, QString system, QString version_regexp)
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: Rule(result), m_system(system), m_version_regexp(version_regexp)
{
}
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public:
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virtual QJsonObject toJson();
static std::shared_ptr<OsRule> create(RuleAction result, QString system,
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QString version_regexp)
{
return std::shared_ptr<OsRule>(new OsRule(result, system, version_regexp));
}
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};
class ImplicitRule : public Rule
{
protected:
virtual bool applies(const Library *, const RuntimeContext & runtimeContext)
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{
return true;
}
ImplicitRule(RuleAction result) : Rule(result)
{
}
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public:
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virtual QJsonObject toJson();
static std::shared_ptr<ImplicitRule> create(RuleAction result)
{
return std::shared_ptr<ImplicitRule>(new ImplicitRule(result));
}
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};