<?php

/*
 * CBL RememberMe - a "remember me" functionality for PHP session handling
 * Copyright (C) 2005,2006  Cybozu Labs, Inc.
 *
 * Last Update: 2006-01-16
 * 
 * 
 * This library 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 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * URL: http://www.31tools.com/cbl_rememberme/
 *
 */

class CBL_RememberMe {
  
  var $session_keyname = '__cbl_rememberme';
  var $cookie_name;
  var $default_remember;
  
  function CBL_RememberMe($cookie_name, $default_remember) {
    $this->default_remember = $default_remember;
    // clear session info if necessary
    if (! $this->remember() && ! isset($_COOKIE[$cookie_name])) {
      $_SESSION = array();
    }
    // set in use cookie
    $params = session_get_cookie_params();
    setcookie($cookie_name, 1, 0, $params['path'], $params['domain'],
	      $params['secure']);
  }
  
  function remember() {
    return
      isset($_SESSION[$this->session_keyname]) ?
      $_SESSION[$this->session_keyname] :
      $this->default_remember;
  }
  
  function setRemember($on) {
    $_SESSION[$this->session_keyname] = $on;
  }
  
  function clear() {
    if (isset($_SESSION[$this->session_keyname])) {
      $t = $_SESSION[$this->session_keyname];
      $_SESSION = array($this->session_keyname => $t);
    }
  }
}

?>