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/*
 * AuthBackend.h
 *
 * Copyright (C) 2009 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_COMMON_AUTHBACKEND_H_
#define MAD_COMMON_AUTHBACKEND_H_

#include <Core/Exception.h>

#include <vector>

#include <boost/cstdint.hpp>
#include <boost/shared_ptr.hpp>

namespace Mad {
namespace Common {

class AuthContext;
class AuthManager;
class AuthProvider;

class AuthBackend {
  protected:
    friend class AuthManager;

    virtual const std::string& getMethodName() const = 0;
    virtual std::vector<std::string> getSubMethods(boost::shared_ptr<AuthProvider> provider) const = 0;

    virtual boost::shared_ptr<AuthContext> authenticate(boost::shared_ptr<AuthProvider> provider, const std::string &subMethod,
        const std::string &user, const std::vector<boost::uint8_t> &data, std::vector<boost::uint8_t> &response,
        boost::shared_ptr<AuthContext> context) throw(Core::Exception) = 0;

  public:
    virtual ~AuthBackend() {}
};

}
}

#endif /* MAD_COMMON_AUTHBACKEND_H_ */