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4
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ryan
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<?php
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stefan
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// $Id$
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4
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ryan
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/*
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Website Baker Project <http://www.websitebaker.org/>
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399
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Ruebenwurz
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Copyright (C) 2004-2007, Ryan Djurovich
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4
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ryan
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Website Baker is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Website Baker is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Website Baker; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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Login class
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This class will be used to with the login application
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*/
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// Stop this file from being accessed directly
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stefan
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if(!defined('WB_URL')) {
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header('Location: ../index.php');
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stefan
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exit(0);
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stefan
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}
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4
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ryan
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define('LOGIN_CLASS_LOADED', true);
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// Load the other required class files if they are not already loaded
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require_once(WB_PATH."/framework/class.admin.php");
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class login extends admin {
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function login($config_array) {
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// Get language vars
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global $MESSAGE;
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stefan
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$this->wb();
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// Get configuration values
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$this->USERS_TABLE = $config_array['USERS_TABLE'];
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$this->GROUPS_TABLE = $config_array['GROUPS_TABLE'];
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$this->username_fieldname = $config_array['USERNAME_FIELDNAME'];
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$this->password_fieldname = $config_array['PASSWORD_FIELDNAME'];
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$this->remember_me_option = $config_array['REMEMBER_ME_OPTION'];
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$this->max_attemps = $config_array['MAX_ATTEMPS'];
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$this->warning_url = $config_array['WARNING_URL'];
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$this->login_url = $config_array['LOGIN_URL'];
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$this->template_dir = $config_array['TEMPLATE_DIR'];
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$this->template_file = $config_array['TEMPLATE_FILE'];
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$this->frontend = $config_array['FRONTEND'];
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$this->forgotten_details_app = $config_array['FORGOTTEN_DETAILS_APP'];
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$this->max_username_len = $config_array['MAX_USERNAME_LEN'];
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$this->max_password_len = $config_array['MAX_PASSWORD_LEN'];
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if (array_key_exists('REDIRECT_URL',$config_array))
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$this->redirect_url = $config_array['REDIRECT_URL'];
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else
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$this->redirect_url = '';
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// Get the supplied username and password
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if ($this->get_post('username_fieldname') != ''){
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$username_fieldname = $this->get_post('username_fieldname');
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$password_fieldname = $this->get_post('password_fieldname');
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} else {
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$username_fieldname = 'username';
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$password_fieldname = 'password';
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}
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$this->username = $this->add_slashes(strtolower($this->get_post($username_fieldname)));
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$this->password = $this->get_post($password_fieldname);
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// Figure out if the "remember me" option has been checked
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if($this->get_post('remember') == 'true') {
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$this->remember = $this->get_post('remember');
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} else {
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$this->remember = false;
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}
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// Get the length of the supplied username and password
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if($this->get_post($username_fieldname) != '') {
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$this->username_len = strlen($this->username);
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$this->password_len = strlen($this->password);
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}
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// If the url is blank, set it to the default url
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$this->url = $this->get_post('url');
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if ($this->redirect_url!='') {
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$this->url = $this->redirect_url;
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}
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if(strlen($this->url) < 2) {
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$this->url = $config_array['DEFAULT_URL'];
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}
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if($this->is_authenticated() == true) {
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// User already logged-in, so redirect to default url
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header('Location: '.$this->url);
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exit();
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} elseif($this->is_remembered() == true) {
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// User has been "remembered"
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// Get the users password
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$database = new database();
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$query_details = $database->query("SELECT * FROM ".$this->USERS_TABLE." WHERE user_id = '".$this->get_safe_remember_key()."' LIMIT 1");
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$fetch_details = $query_details->fetchRow();
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$this->username = $fetch_details['username'];
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$this->password = $fetch_details['password'];
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// Check if the user exists (authenticate them)
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if($this->authenticate()) {
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// Authentication successful
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header("Location: ".$this->url);
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stefan
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exit(0);
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ryan
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} else {
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$this->message = $MESSAGE['LOGIN']['AUTHENTICATION_FAILED'];
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$this->increase_attemps();
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}
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} elseif($this->username == '' AND $this->password == '') {
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$this->message = $MESSAGE['LOGIN']['BOTH_BLANK'];
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$this->increase_attemps();
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} elseif($this->username == '') {
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$this->message = $MESSAGE['LOGIN']['USERNAME_BLANK'];
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$this->increase_attemps();
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} elseif($this->password == '') {
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$this->message = $MESSAGE['LOGIN']['PASSWORD_BLANK'];
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$this->increase_attemps();
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} elseif($this->username_len < $config_array['MIN_USERNAME_LEN']) {
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$this->message = $MESSAGE['LOGIN']['USERNAME_TOO_SHORT'];
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$this->increase_attemps();
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} elseif($this->password_len < $config_array['MIN_PASSWORD_LEN']) {
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$this->message = $MESSAGE['LOGIN']['PASSWORD_TOO_SHORT'];
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$this->increase_attemps();
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} elseif($this->username_len > $config_array['MAX_USERNAME_LEN']) {
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$this->message = $MESSAGE['LOGIN']['USERNAME_TOO_LONG'];
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$this->increase_attemps();
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} elseif($this->password_len > $config_array['MAX_PASSWORD_LEN']) {
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$this->message = $MESSAGE['LOGIN']['PASSWORD_TOO_LONG'];
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$this->increase_attemps();
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} else {
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// Check if the user exists (authenticate them)
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$this->password = md5($this->password);
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if($this->authenticate()) {
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// Authentication successful
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stefan
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//echo $this->url;exit();
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ryan
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header("Location: ".$this->url);
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stefan
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exit(0);
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ryan
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} else {
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$this->message = $MESSAGE['LOGIN']['AUTHENTICATION_FAILED'];
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$this->increase_attemps();
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}
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}
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}
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// Authenticate the user (check if they exist in the database)
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function authenticate() {
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// Get user information
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$database = new database();
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$query = "SELECT * FROM ".$this->USERS_TABLE." WHERE username = '".$this->username."' AND password = '".$this->password."' AND active = '1'";
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$results = $database->query($query);
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$results_array = $results->fetchRow();
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$num_rows = $results->numRows();
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if($num_rows) {
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$user_id = $results_array['user_id'];
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$this->user_id = $user_id;
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$_SESSION['USER_ID'] = $user_id;
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$_SESSION['GROUP_ID'] = $results_array['group_id'];
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$_SESSION['USERNAME'] = $results_array['username'];
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$_SESSION['DISPLAY_NAME'] = $results_array['display_name'];
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$_SESSION['EMAIL'] = $results_array['email'];
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$_SESSION['HOME_FOLDER'] = $results_array['home_folder'];
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// Run remember function if needed
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if($this->remember == true) {
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$this->remember($this->user_id);
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}
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// Set language
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if($results_array['language'] != '') {
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$_SESSION['LANGUAGE'] = $results_array['language'];
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}
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// Set timezone
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if($results_array['timezone'] != '-72000') {
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$_SESSION['TIMEZONE'] = $results_array['timezone'];
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} else {
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// Set a session var so apps can tell user is using default tz
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$_SESSION['USE_DEFAULT_TIMEZONE'] = true;
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}
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// Set date format
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if($results_array['date_format'] != '') {
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$_SESSION['DATE_FORMAT'] = $results_array['date_format'];
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} else {
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// Set a session var so apps can tell user is using default date format
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$_SESSION['USE_DEFAULT_DATE_FORMAT'] = true;
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}
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// Set time format
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if($results_array['time_format'] != '') {
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$_SESSION['TIME_FORMAT'] = $results_array['time_format'];
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} else {
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// Set a session var so apps can tell user is using default time format
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$_SESSION['USE_DEFAULT_TIME_FORMAT'] = true;
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}
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// Get group information
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$query = "SELECT * FROM ".$this->GROUPS_TABLE." WHERE group_id = '".$this->get_session('GROUP_ID')."'";
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$results = $database->query($query);
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$results_array = $results->fetchRow();
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$_SESSION['GROUP_NAME'] = $results_array['name'];
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// Set system permissions
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if($results_array['system_permissions'] != '') {
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$_SESSION['SYSTEM_PERMISSIONS'] = explode(',', $results_array['system_permissions']);
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} else {
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$_SESSION['SYSTEM_PERMISSIONS'] = array();
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}
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// Set module permissions
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if($results_array['module_permissions'] != '') {
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$_SESSION['MODULE_PERMISSIONS'] = explode(',', $results_array['module_permissions']);
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} else {
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$_SESSION['MODULE_PERMISSIONS'] = array();
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}
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// Set template permissions
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if($results_array['template_permissions'] != '') {
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$_SESSION['TEMPLATE_PERMISSIONS'] = explode(',', $results_array['template_permissions']);
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} else {
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$_SESSION['TEMPLATE_PERMISSIONS'] = array();
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}
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// Update the users table with current ip and timestamp
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$get_ts = mktime();
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$get_ip = $_SERVER['REMOTE_ADDR'];
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$query = "UPDATE ".$this->USERS_TABLE." SET login_when = '$get_ts', login_ip = '$get_ip' WHERE user_id = '$user_id'";
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$database->query($query);
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}
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// Return if the user exists or not
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return $num_rows;
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}
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// Increase the count for login attemps
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function increase_attemps() {
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if(!isset($_SESSION['ATTEMPS'])) {
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$_SESSION['ATTEMPS'] = 0;
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} else {
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$_SESSION['ATTEMPS'] = $this->get_session('ATTEMPS')+1;
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}
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$this->display_login();
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}
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// Function to set a "remembering" cookie for the user
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function remember($user_id) {
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$remember_key = '';
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// Generate user id to append to the remember key
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$length = 11-strlen($user_id);
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if($length > 0) {
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for($i = 1; $i <= $length; $i++) {
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$remember_key .= '0';
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}
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}
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// Generate remember key
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$remember_key .= $user_id.'_';
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$salt = "abchefghjkmnpqrstuvwxyz0123456789";
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srand((double)microtime()*1000000);
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$i = 0;
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while ($i <= 10) {
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$num = rand() % 33;
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$tmp = substr($salt, $num, 1);
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$remember_key = $remember_key . $tmp;
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$i++;
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}
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$remember_key = $remember_key;
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// Update the remember key in the db
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| 267 |
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$database = new database();
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| 268 |
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$database->query("UPDATE ".$this->USERS_TABLE." SET remember_key = '$remember_key' WHERE user_id = '$user_id' LIMIT 1");
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| 269 |
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if($database->is_error()) {
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| 270 |
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return false;
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| 271 |
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} else {
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| 272 |
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// Workout options for the cookie
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| 273 |
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$cookie_name = 'REMEMBER_KEY';
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| 274 |
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$cookie_value = $remember_key;
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| 275 |
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$cookie_expire = time()+60*60*24*30;
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| 276 |
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// Set the cookie
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| 277 |
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if(setcookie($cookie_name, $cookie_value, $cookie_expire, '/')) {
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| 278 |
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return true;
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| 279 |
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} else {
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| 280 |
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return false;
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| 281 |
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}
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| 282 |
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}
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| 283 |
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}
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// Function to check if a user has been remembered
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| 286 |
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function is_remembered() {
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| 287 |
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if(isset($_COOKIE['REMEMBER_KEY']) AND $_COOKIE['REMEMBER_KEY'] != '') {
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| 288 |
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// Check if the remember key is correct
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| 289 |
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$database = new database();
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| 290 |
423
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ryan
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$check_query = $database->query("SELECT user_id FROM ".$this->USERS_TABLE." WHERE remember_key = '".$this->get_safe_remember_key()."' LIMIT 1");
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| 291 |
4
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ryan
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if($check_query->numRows() > 0) {
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| 292 |
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$check_fetch = $check_query->fetchRow();
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| 293 |
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$user_id = $check_fetch['user_id'];
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| 294 |
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// Check the remember key prefix
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| 295 |
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$remember_key_prefix = '';
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| 296 |
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$length = 11-strlen($user_id);
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| 297 |
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if($length > 0) {
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| 298 |
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for($i = 1; $i <= $length; $i++) {
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| 299 |
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$remember_key_prefix .= '0';
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| 300 |
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}
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| 301 |
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}
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| 302 |
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$remember_key_prefix .= $user_id.'_';
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| 303 |
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$length = strlen($remember_key_prefix);
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| 304 |
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if(substr($_COOKIE['REMEMBER_KEY'], 0, $length) == $remember_key_prefix) {
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| 305 |
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return true;
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| 306 |
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} else {
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| 307 |
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return false;
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| 308 |
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|
}
|
| 309 |
|
|
} else {
|
| 310 |
|
|
return false;
|
| 311 |
|
|
}
|
| 312 |
|
|
} else {
|
| 313 |
|
|
return false;
|
| 314 |
|
|
}
|
| 315 |
|
|
}
|
| 316 |
|
|
|
| 317 |
|
|
// Display the login screen
|
| 318 |
|
|
function display_login() {
|
| 319 |
|
|
// Get language vars
|
| 320 |
|
|
global $MESSAGE;
|
| 321 |
|
|
global $MENU;
|
| 322 |
|
|
global $TEXT;
|
| 323 |
|
|
// If attemps more than allowed, warn the user
|
| 324 |
|
|
if($this->get_session('ATTEMPS') > $this->max_attemps) {
|
| 325 |
|
|
$this->warn();
|
| 326 |
|
|
}
|
| 327 |
|
|
// Show the login form
|
| 328 |
|
|
if($this->frontend != true) {
|
| 329 |
|
|
require_once(WB_PATH.'/include/phplib/template.inc');
|
| 330 |
|
|
$template = new Template($this->template_dir);
|
| 331 |
|
|
$template->set_file('page', $this->template_file);
|
| 332 |
|
|
$template->set_block('page', 'mainBlock', 'main');
|
| 333 |
|
|
if($this->remember_me_option != true) {
|
| 334 |
|
|
$template->set_var('DISPLAY_REMEMBER_ME', 'none');
|
| 335 |
|
|
} else {
|
| 336 |
|
|
$template->set_var('DISPLAY_REMEMBER_ME', '');
|
| 337 |
|
|
}
|
| 338 |
|
|
$template->set_var(array(
|
| 339 |
|
|
'ACTION_URL' => $this->login_url,
|
| 340 |
|
|
'ATTEMPS' => $this->get_session('ATTEMPS'),
|
| 341 |
|
|
'USERNAME' => $this->username,
|
| 342 |
|
|
'USERNAME_FIELDNAME' => $this->username_fieldname,
|
| 343 |
|
|
'PASSWORD_FIELDNAME' => $this->password_fieldname,
|
| 344 |
|
|
'MESSAGE' => $this->message,
|
| 345 |
|
|
'INTERFACE_DIR_URL' => ADMIN_URL.'/interface',
|
| 346 |
|
|
'MAX_USERNAME_LEN' => $this->max_username_len,
|
| 347 |
|
|
'MAX_PASSWORD_LEN' => $this->max_password_len,
|
| 348 |
|
|
'WB_URL' => WB_URL,
|
| 349 |
|
|
'FORGOTTEN_DETAILS_APP' => $this->forgotten_details_app,
|
| 350 |
|
|
'TEXT_FORGOTTEN_DETAILS' => $TEXT['FORGOTTEN_DETAILS'],
|
| 351 |
|
|
'TEXT_USERNAME' => $TEXT['USERNAME'],
|
| 352 |
|
|
'TEXT_PASSWORD' => $TEXT['PASSWORD'],
|
| 353 |
|
|
'TEXT_REMEMBER_ME' => $TEXT['REMEMBER_ME'],
|
| 354 |
|
|
'TEXT_LOGIN' => $TEXT['LOGIN'],
|
| 355 |
|
|
'TEXT_HOME' => $TEXT['HOME'],
|
| 356 |
|
|
'PAGES_DIRECTORY' => PAGES_DIRECTORY,
|
| 357 |
|
|
'SECTION_LOGIN' => $MENU['LOGIN']
|
| 358 |
|
|
)
|
| 359 |
|
|
);
|
| 360 |
333
|
stefan
|
if(defined('DEFAULT_CHARSET')) {
|
| 361 |
|
|
$charset=DEFAULT_CHARSET;
|
| 362 |
|
|
} else {
|
| 363 |
|
|
$charset='utf-8';
|
| 364 |
|
|
}
|
| 365 |
|
|
|
| 366 |
|
|
$template->set_var('CHARSET', $charset);
|
| 367 |
|
|
|
| 368 |
|
|
|
| 369 |
4
|
ryan
|
$template->parse('main', 'mainBlock', false);
|
| 370 |
|
|
$template->pparse('output', 'page');
|
| 371 |
|
|
}
|
| 372 |
|
|
}
|
| 373 |
423
|
ryan
|
|
| 374 |
|
|
// convert "REMEMBER_KEY" to a number and then repad
|
| 375 |
|
|
// any non numeric character will cause intval to return null thus returning 11 0's
|
| 376 |
|
|
function get_safe_remember_key() {
|
| 377 |
|
|
return str_pad(intval(substr($_COOKIE['REMEMBER_KEY'],0,11)),11,"0",STR_PAD_LEFT); // SQL Injection prevention
|
| 378 |
|
|
}
|
| 379 |
4
|
ryan
|
|
| 380 |
|
|
// Warn user that they have had to many login attemps
|
| 381 |
|
|
function warn() {
|
| 382 |
|
|
header('Location: '.$this->warning_url);
|
| 383 |
286
|
stefan
|
exit(0);
|
| 384 |
4
|
ryan
|
}
|
| 385 |
|
|
|
| 386 |
|
|
}
|
| 387 |
|
|
|
| 388 |
239
|
stefan
|
?>
|