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/*
 * This file is part of smolbote. It's copyrighted by the contributors recorded
 * in the version control history of the file, available from its original
 * location: git://neueland.iserlohn-fortress.net/smolbote.git
 * 
 * SPDX-License-Identifier: GPL-3.0
 */

#ifndef ADBLOCKRULE_H
#define ADBLOCKRULE_H

#include <QObject>
#include <QUrl>
#include "regexp.h"
#include <QWebEngineUrlRequestInfo>

class BlockerRule : public QObject
{
    Q_OBJECT
public:

    // https://adblockplus.org/en/filters#options
    enum RuleOption {
        script = 1,
        image = 2,
        stylesheet = 4,
        object = 8,
        xmlhttprequest = 16,
        objectsubrequest = 32,
        subdocument = 64,
        ping = 128,
        websocket = 256,
        document = 512,
        elemhide = 1024,
        generichide = 2048,
        genericblock = 4096,
        other = 8192
    };
    Q_DECLARE_FLAGS(RuleOptions, RuleOption)

    explicit BlockerRule(QString rule, QObject *parent = 0);

    bool match(const QWebEngineUrlRequestInfo &info);
    bool isValid();
    bool isException();
    QString filter() const;

signals:

public slots:

private:
    void parseOption(const QString &opt);
    bool matchOptions(const QWebEngineUrlRequestInfo &info, const RuleOptions &options);

    QString m_filter;

    bool m_valid;
    bool m_exception = false;
    bool m_elementRule;

    QStringList hostsBlacklist;
    QStringList hostsWhitelist;
    RegExp domainExpression;
    RegExp ruleExpression;

    RuleOptions m_blacklistOptions;
    RuleOptions m_whitelistOptions;
};

#endif // ADBLOCKRULE_H