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Zen Cart 源代码 sessions.php
Zen Cart 源代码 sessions.php
sessions.php - 打开高亮
<?php /** * functions/sessions.php * Session functions * * @package functions * @copyright Copyright 2003-2011 Zen Cart Development Team * @copyright Portions Copyright 2003 osCommerce * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0 * @version $Id: sessions.php 18697 2011-05-04 14:35:20Z wilt $ */ if (!defined('IS_ADMIN_FLAG')) { die('Illegal Access'); } if (IS_ADMIN_FLAG === true) { if (!$SESS_LIFE = (SESSION_TIMEOUT_ADMIN > 900 ? 900 : SESSION_TIMEOUT_ADMIN)) { $SESS_LIFE = (SESSION_TIMEOUT_ADMIN > 900 ? 900 : SESSION_TIMEOUT_ADMIN); } } else { if (!$SESS_LIFE = get_cfg_var('session.gc_maxlifetime')) { $SESS_LIFE = 1440; } } function _sess_open($save_path, $session_name) { return true; } function _sess_close() { return true; } function _sess_read($key) { global $db; $qid = "select value from " . TABLE_SESSIONS . " where sesskey = '" . zen_db_input($key) . "' and expiry > '" . time() . "'"; $value = $db->Execute($qid); if (isset($value->fields['value']) && $value->fields['value']) { $value->fields['value'] = base64_decode($value->fields['value']); return $value->fields['value']; } return (""); } function _sess_write($key, $val) { global $db; if (!is_object($db)) { //PHP 5.2.0 bug workaround ... if (!class_exists('queryFactory')) require('includes/classes/db/' .DB_TYPE . '/query_factory.php'); $db = new queryFactory(); $db->connect(DB_SERVER, DB_SERVER_USERNAME, DB_SERVER_PASSWORD, DB_DATABASE, USE_PCONNECT, false); } $val = base64_encode($val); global $SESS_LIFE; $expiry = time() + $SESS_LIFE; $qid = "select count(*) as total from " . TABLE_SESSIONS . " where sesskey = '" . zen_db_input($key) . "'"; $total = $db->Execute($qid); if ($total->fields['total'] > 0) { $sql = "update " . TABLE_SESSIONS . " set expiry = '" . zen_db_input($expiry) . "', value = '" . zen_db_input($val) . "' where sesskey = '" . zen_db_input($key) . "'"; $result = $db->Execute($sql); } else { $sql = "insert into " . TABLE_SESSIONS . " values ('" . zen_db_input($key) . "', '" . zen_db_input($expiry) . "', '" . zen_db_input($val) . "')"; $result = $db->Execute($sql); } return (!empty($result) && !empty($result->resource)); } function _sess_destroy($key) { global $db; $sql = "delete from " . TABLE_SESSIONS . " where sesskey = '" . zen_db_input($key) . "'"; return $db->Execute($sql); } function _sess_gc($maxlifetime) { global $db; $sql = "delete from " . TABLE_SESSIONS . " where expiry < " . time(); $db->Execute($sql); return true; } session_set_save_handler('_sess_open', '_sess_close', '_sess_read', '_sess_write', '_sess_destroy', '_sess_gc'); function zen_session_start() { @ini_set('session.gc_probability', 1); @ini_set('session.gc_divisor', 2); if (IS_ADMIN_FLAG === true) { @ini_set('session.gc_maxlifetime', (SESSION_TIMEOUT_ADMIN > 900 ? 900 : SESSION_TIMEOUT_ADMIN)); } if (preg_replace('/[a-zA-Z0-9]/', '', session_id()) != '') { zen_session_id(md5(uniqid(rand(), true))); } $temp = session_start(); if (!isset($_SESSION['securityToken'])) { $_SESSION['securityToken'] = md5(uniqid(rand(), true)); } return $temp; } function zen_session_register($variable) { die('This function has been deprecated. Please use Register Globals Off compatible code'); } function zen_session_is_registered($variable) { die('This function has been deprecated. Please use Register Globals Off compatible code'); } function zen_session_unregister($variable) { die('This function has been deprecated. Please use Register Globals Off compatible code'); } function zen_session_id($sessid = '') { if (!empty($sessid)) { $tempSessid = $sessid; if (preg_replace('/[a-zA-Z0-9]/', '', $tempSessid) != '') { $sessid = md5(uniqid(rand(), true)); } return session_id($sessid); } else { return session_id(); } } function zen_session_name($name = '') { if (!empty($name)) { $tempName = $name; if (preg_replace('/[a-zA-Z0-9]/', '', $tempName) == '') return session_name($name); return FALSE; } else { return session_name(); } } function zen_session_close() { if (function_exists('session_close')) { return session_close(); } } function zen_session_destroy() { return session_destroy(); } function zen_session_save_path($path = '') { if (!empty($path)) { return session_save_path($path); } else { return session_save_path(); } } function zen_session_recreate() { global $http_domain, $https_domain, $current_domain; if ($http_domain == $https_domain) { $saveSession = $_SESSION; $oldSessID = session_id(); session_regenerate_id(); $newSessID = session_id(); session_id($oldSessID); session_id($newSessID); session_set_save_handler('_sess_open', '_sess_close', '_sess_read', '_sess_write', '_sess_destroy', '_sess_gc'); $_SESSION = $saveSession; if (IS_ADMIN_FLAG !== true) { whos_online_session_recreate($oldSessID, $newSessID); } } }