~drizzle-trunk/drizzle/development

/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2008 Sun Microsystems

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 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 General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#include "drizzled/server_includes.h"

#include "drizzled/authentication.h"

#include "drizzled/gettext.h"

#include "drizzled/errmsg_print.h"

#include "drizzled/plugin_registry.h"

#include <vector>

using namespace std;

static vector<Authentication *> all_authentication;

static bool are_plugins_loaded= false;

void add_authentication(Authentication *auth)

{

  all_authentication.push_back(auth);

}

void remove_authentication(Authentication *auth)

{

  all_authentication.erase(find(all_authentication.begin(),

                                all_authentication.end(),

                                auth));

}

class AuthenticateBy : public unary_function<Authentication *, bool>

{

  Session *session;

  const char *password;

public:

  AuthenticateBy(Session *session_arg, const char *password_arg) :

    unary_function<Authentication *, bool>(),

    session(session_arg), password(password_arg) {}

  inline result_type operator()(argument_type auth)

  {

    return auth->authenticate(session, password);

  }

};

bool authenticate_user(Session *session, const char *password)

{

  /* If we never loaded any auth plugins, just return true */

  if (are_plugins_loaded != true)

    return true;

  /* Use find_if instead of foreach so that we can collect return codes */

  vector<Authentication *>::iterator iter=

    find_if(all_authentication.begin(), all_authentication.end(),

            AuthenticateBy(session, password));

  /* If iter is == end() here, that means that all of the plugins returned

   * false, which in this case means they all succeeded. Since we want to 

   * return false on success, we return the value of the two being != 

   */

  return iter != all_authentication.end();

}