/*
 * AuthProviderFile.h
 *
 * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MAD_MODULES_AUTHPROVIDERFILE_AUTHPROVIDERFILE_H_
#define MAD_MODULES_AUTHPROVIDERFILE_AUTHPROVIDERFILE_H_

#include "../export.h"

#include <Common/AuthProvider.h>
#include <Common/Application.h>
#include <Common/Hash.h>

#include <Core/Configurable.h>
#include <Core/ConfigManager.h>

namespace Mad {
namespace Modules {
namespace AuthProviderFile {

class MAD_MODULE_EXPORT AuthProviderFile : public Common::AuthProvider, private Core::Configurable, private boost::noncopyable {
  private:
    void readFile(const std::string &name);

    Common::Application *application;

    std::map<std::string, std::string> userMap;

    std::vector<std::string> hashes;

  protected:
    virtual bool handleConfigEntry(const Core::ConfigEntry &entry, bool /*handled*/);

    virtual const std::vector<std::string>& getHashes() const {
      return hashes;
    }

    virtual std::vector<boost::uint8_t> getPassword(const std::string &user, const std::string &hash) throw(Core::Exception) {
      std::map<std::string, std::string>::iterator userIt = userMap.find(user);
      if(userIt == userMap.end())
        return std::vector<boost::uint8_t>();

      if(hash == "Clear")
        return std::vector<boost::uint8_t>(userIt->second.begin(), userIt->second.end());
      else
        return Common::Hash::hash(std::vector<boost::uint8_t>(userIt->second.begin(), userIt->second.end()), hash);
    }

  public:
    AuthProviderFile(Common::Application *application0) : application(application0), hashes(Common::Hash::getHashList()) {
      hashes.push_back("Clear");

      application->getConfigManager()->registerConfigurable(this);
    }

    virtual ~AuthProviderFile() {
      application->getConfigManager()->unregisterConfigurable(this);
    }
};

}
}
}

#endif /* MAD_MODULES_AUTHPROVIDERFILE_AUTHPROVIDERFILE_H_ */