root/trunk/globals/classes/userdata.php @ 1

<?php
/*
 * WiND - Wireless Nodes Database
 *
 * Copyright (C) 2005 Nikolaos Nikalexis <winner@cube.gr>
 * 
 * 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; version 2 dated June, 1991.
 *
 * 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
 *
 */

class userdata {
        
        var $logged=FALSE;
        var $user='';
        var $info;
        var $privileges;
        
        #CONFIG
        var $users_table = "users";
        var $primary_key = "id";
        var $username_key = "username";
        var $password_key = "password";
        var $info_keys = "username, name, surname, date_in, last_visit, last_session, status";
        var $last_session_key = "last_session";
        var $last_visit_key = "last_visit";
        
        function userdata() {
                session_start();
                if (isset($_SESSION['userdata'][$this->primary_key])) {
                        $this->logged = TRUE;
                        $this->user = $_SESSION['userdata'][$this->primary_key];
                        $this->refresh_session();
                } else {
                        if (isset($_COOKIE['userdata'][$this->primary_key])) {
                                $uid = $_COOKIE['userdata'][$this->primary_key];
                                $p_md5 = $_COOKIE['userdata'][$this->password_key];
                                if ($this->check_login($uid, $p_md5, TRUE)) {
                                        $this->logged = TRUE;
                                        $this->user_id = $uid;
                                        $_SESSION['userdata'][$this->primary_key] = $uid;
                                        $this->reset_visit();
                                        $this->refresh_session();
                                } else {
                                        $this->logged = FALSE;
                                }
                        } else {
                                $this->logged = FALSE;                  
                        }
                }
                $this->load_info();
        }
        
        function load_info() {
                if ($this->logged) {
                        global $db;
                        $get_res = $db->get($this->info_keys, $this->users_table, $this->primary_key." = $this->user");         
                        $this->info = $get_res[0];
                        
                        // EDIT HERE
                        $get_res = $db->get('type', 'rights', "user_id = '$this->user'");               
                        foreach( (array) $get_res as $key => $value) {
                                $this->privileges[$value['type']] = TRUE;
                        }
                        //
                        
                } else {
                        unset($this->info);
                        unset($this->privileges);
                }
        }
        
        function login($username, $password, $save = FALSE) {
                $this->logout();
                if ($this->check_login($username, md5($password))) {
                        global $db;
                        $get_res = $db->get($this->primary_key, $this->users_table, $this->username_key." = '$username'");
                        $uid = $get_res[0][$this->primary_key];
                        $this->logged = TRUE;
                        $this->user = $uid;
                        $_SESSION['userdata'][$this->primary_key] = $uid;
                        $this->reset_visit();
                        $this->refresh_session();
                        if ($save) {
                                cookie('userdata['.$this->primary_key.']', $uid);
                                cookie('userdata['.$this->password_key.']', md5($password));
                        }
                }
                $this->load_info();
                return $this->logged;
        }
        
        function logout() {
                if ($this->logged) {
                        cookie('userdata['.$this->primary_key.']', '');
                        cookie('userdata['.$this->password_key.']', '');
                        $this->logged = FALSE;
                        $this->user = '';
                        session_destroy();
                }
                $this->load_info();
        }
        
        function check_login($username, $password, $user_pk = FALSE) {
                global $db;
                $get_res = $db->get($this->password_key, $this->users_table, ($user_pk?$this->primary_key:$this->username_key)." = '$username'");
                if (isset($get_res[0][$this->password_key]) && $password == $get_res[0][$this->password_key]) {
                        return TRUE;
                } else {
                        return FALSE;
                }
        }
        
        function reset_visit($uid="") {
                if ($uid == "") $uid = $this->user;
                global $db;
                $ret = $db->get($this->last_session_key, $this->users_table, $this->primary_key." = $uid");
                $ret = $ret[0];
                $db->set($this->users_table, array($this->last_visit_key => $ret[$this->last_session_key]), $this->primary_key." = $uid", FALSE);
        }
        
        function refresh_session($uid="") {
                if ($uid == "") $uid = $this->user;
                global $db;
                $db->set($this->users_table, array($this->last_session_key => date_now()), $this->primary_key." = $uid", FALSE);
        }

}

?>