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/*
 * AuthBackendPassword.cpp
 *
 * 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/>.
 */

#include "AuthBackendPassword.h"

namespace Mad {
namespace Modules {
namespace AuthBackendPassword {

const Core::String AuthBackendPassword::methodName = "Password";

boost::shared_ptr<Common::AuthContext> AuthBackendPassword::authenticate(boost::shared_ptr<Common::AuthProvider> provider, const Core::String &subMethod,
    const Core::String &user, const std::vector<boost::uint8_t> &data, std::vector<boost::uint8_t>& /*response*/,
    boost::shared_ptr<Common::AuthContext> context) throw(Core::Exception) {
  if(context && dynamic_cast<AuthContextPassword*>(context.get()) == 0)
    throw(Core::Exception(Core::Exception::INVALID_INPUT));

  std::vector<Core::String> allowedMethods = getSubMethods(provider);
  if(std::find(allowedMethods.begin(), allowedMethods.end(), subMethod) == allowedMethods.end())
    throw(Core::Exception(Core::Exception::INVALID_INPUT));

  if(!context)
    context.reset(new AuthContextPassword);

  if(!provider->checkPassword(user, data, subMethod))
    throw(Core::Exception(Core::Exception::AUTHENTICATION));


  return context;
}

}
}
}