ReferrerMapping.h

/*
 * This file is part of Adblock Plus <https://adblockplus.org/>,
 * Copyright (C) 2006-present eyeo GmbH
 *
 * Adblock Plus is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 as
 * published by the Free Software Foundation.
 *
 * Adblock Plus 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 Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef ADBLOCK_PLUS_REFERRER_MAPPING_H
#define ADBLOCK_PLUS_REFERRER_MAPPING_H

#include <list>
#include <map>
#include <string>
#include <vector>

namespace AdblockPlus
{
  class ReferrerMapping
  {
  public:
    ReferrerMapping(const int maxCachedUrls = 5000);

    void Add(const std::string& url, const std::string& referrer);

    std::vector<std::string> BuildReferrerChain(const std::string& url) const;

  private:
    const int maxCachedUrls;
    std::map<std::string, std::string> mapping;
    std::list<std::string> cachedUrls;
  };
}

#endif