因为工作需要，在ECShop后台将FCK编辑器替换成为KindEditor富文本编辑器，同时支持uploadify 2上传，那么我必须对ECShop原版的Session机制进行改造优化，而且又解决一直以来此Session机制的同IP用户登陆自动退出的bug。我现在把cls\_session.php 源码分享出来，喜欢的来拿去用吧， 记得评论一下。<?php /** * ECSHOP SESSION 公用类库 * ============================================================================ * 版权所有 2005-2010 上海商派网络科技有限公司，并保留所有权利。 * 网站地址: http://www.ecshop.com； * ---------------------------------------------------------------------------- * 这不是一个自由软件！您只能在不用于商业目的的前提下对程序代码进行修改和 * 使用；不允许对程序代码以任何形式任何目的的再发布。 * ============================================================================ * $Author: liuhui $ * $Id: cls_session.php 17063 2010-03-25 06:35:46Z liuhui $ */ if (!defined('IN_ECS')) { die('Hacking attempt'); } class cls_session { var $db = NULL; var $session_table = ''; var $max_life_time = 1800; // SESSION 过期时间 var $session_name = ''; var $session_id = ''; var $session_expiry = ''; var $session_md5 = ''; var $session_cookie_path = '/'; var $session_cookie_domain = ''; var $session_cookie_secure = false; var $_ip = ''; var $_time = 0; function __construct(&$db, $session_table, $session_data_table, $session_name = 'ECS_ID', $session_id = '') { $this->cls_session($db, $session_table, $session_data_table, $session_name, $session_id); } function cls_session(&$db, $session_table, $session_data_table, $session_name = 'ECS_ID', $session_id = '') { $GLOBALS['_SESSION'] = array(); if (!empty($GLOBALS['cookie_path'])) { $this->session_cookie_path = $GLOBALS['cookie_path']; } else { $this->session_cookie_path = '/'; } if (!empty($GLOBALS['cookie_domain'])) { $this->session_cookie_domain = $GLOBALS['cookie_domain']; } else { $this->session_cookie_domain = ''; } if (!empty($GLOBALS['cookie_secure'])) { $this->session_cookie_secure = $GLOBALS['cookie_secure']; } else { $this->session_cookie_secure = false; } $this->session_name = $session_name; $this->session_table = $session_table; $this->session_data_table = $session_data_table; $this->db = &$db; $this->_ip = real_ip(); if ($session_id == '' && !empty($_COOKIE[$this->session_name])) { $this->session_id = substr($_COOKIE[$this->session_name], 0, 32); } else { $this->session_id = substr($session_id, 0, 32); } $this->_time = time(); if ($this->session_id) { $this->load_session(); } else { $this->gen_session_id(); setcookie($this->session_name, $this->session_id . $this->gen_session_key($this->session_id), 0, $this->session_cookie_path, $this->session_cookie_domain, $this->session_cookie_secure); } register_shutdown_function(array(&$this, 'close_session')); } function gen_session_id() { $this->session_id = md5(uniqid(mt_rand(), true)); return $this->insert_session(); } function gen_session_key($session_id) { static $ip = ''; /* //by ninja911 ecshop session丢失问题 if ($ip == '') { $ip = substr($this->_ip, 0, strrpos($this->_ip, '.')); } */ return sprintf('%08x', crc32(ROOT_PATH . $ip . $session_id)); } function insert_session() { return $this->db->query('INSERT INTO ' . $this->session_table . " (sesskey, expiry, ip, data) VALUES ('" . $this->session_id . "', '". $this->_time ."', '". $this->_ip ."', 'a:0:{}')"); } function load_session() { $session = $this->db->getRow('SELECT userid, adminid, user_name, user_rank, discount, email, data, expiry FROM ' . $this->session_table . " WHERE sesskey = '" . $this->session_id . "'"); if (empty($session)) { $this->insert_session(); $this->session_expiry = 0; $this->session_md5 = '40cd750bba9870f18aada2478b24840a'; $GLOBALS['_SESSION'] = array(); } else { if (!empty($session['data']) && $this->_time - $session['expiry'] <= $this->max_life_time) { $this->session_expiry = $session['expiry']; $this->session_md5 = md5($session['data']); $GLOBALS['_SESSION'] = unserialize($session['data']); $GLOBALS['_SESSION']['user_id'] = $session['userid']; $GLOBALS['_SESSION']['admin_id'] = $session['adminid']; $GLOBALS['_SESSION']['user_name'] = $session['user_name']; $GLOBALS['_SESSION']['user_rank'] = $session['user_rank']; $GLOBALS['_SESSION']['discount'] = $session['discount']; $GLOBALS['_SESSION']['email'] = $session['email']; } else { $session_data = $this->db->getRow('SELECT data, expiry FROM ' . $this->session_data_table . " WHERE sesskey = '" . $this->session_id . "'"); if (!empty($session_data['data']) && $this->_time - $session_data['expiry'] <= $this->max_life_time) { $this->session_expiry = $session_data['expiry']; $this->session_md5 = md5($session_data['data']); $GLOBALS['_SESSION'] = unserialize($session_data['data']); $GLOBALS['_SESSION']['user_id'] = $session['userid']; $GLOBALS['_SESSION']['admin_id'] = $session['adminid']; $GLOBALS['_SESSION']['user_name'] = $session['user_name']; $GLOBALS['_SESSION']['user_rank'] = $session['user_rank']; $GLOBALS['_SESSION']['discount'] = $session['discount']; $GLOBALS['_SESSION']['email'] = $session['email']; } else { $this->session_expiry = 0; $this->session_md5 = '40cd750bba9870f18aada2478b24840a'; $GLOBALS['_SESSION'] = array(); } } } } function update_session() { $adminid = !empty($GLOBALS['_SESSION']['admin_id']) ? intval($GLOBALS['_SESSION']['admin_id']) : 0; $userid = !empty($GLOBALS['_SESSION']['user_id']) ? intval($GLOBALS['_SESSION']['user_id']) : 0; $user_name = !empty($GLOBALS['_SESSION']['user_name']) ? trim($GLOBALS['_SESSION']['user_name']) : 0; $user_rank = !empty($GLOBALS['_SESSION']['user_rank']) ? intval($GLOBALS['_SESSION']['user_rank']) : 0; $discount = !empty($GLOBALS['_SESSION']['discount']) ? round($GLOBALS['_SESSION']['discount'], 2) : 0; $email = !empty($GLOBALS['_SESSION']['email']) ? trim($GLOBALS['_SESSION']['email']) : 0; unset($GLOBALS['_SESSION']['admin_id']); unset($GLOBALS['_SESSION']['user_id']); unset($GLOBALS['_SESSION']['user_name']); unset($GLOBALS['_SESSION']['user_rank']); unset($GLOBALS['_SESSION']['discount']); unset($GLOBALS['_SESSION']['email']); $data = serialize($GLOBALS['_SESSION']); $this->_time = time(); if ($this->session_md5 == md5($data) && $this->_time < $this->session_expiry + 10) { return true; } $data = addslashes($data); if (isset($data{255})) { $this->db->autoReplace($this->session_data_table, array('sesskey' => $this->session_id, 'expiry' => $this->_time, 'data' => $data), array('data' => $data)); $data = ''; } return $this->db->query('UPDATE ' . $this->session_table . " SET expiry = '" . $this->_time . "', ip = '" . $this->_ip . "', userid = '" . $userid . "', adminid = '" . $adminid . "', user_name='" . $user_name . "', user_rank='" . $user_rank . "', discount='" . $discount . "', email='" . $email . "', data = '$data' WHERE sesskey = '" . $this->session_id . "' LIMIT 1"); } function close_session() { $this->update_session(); /* 随机对 sessions_data 的库进行删除操作 */ if (mt_rand(0, 2) == 2) { $this->db->query('DELETE FROM ' . $this->session_data_table . ' WHERE expiry < ' . ($this->_time - $this->max_life_time)); } if ((time() % 2) == 0) { return $this->db->query('DELETE FROM ' . $this->session_table . ' WHERE expiry < ' . ($this->_time - $this->max_life_time)); } return true; } function delete_spec_admin_session($adminid) { if (!empty($GLOBALS['_SESSION']['admin_id']) && $adminid) { return $this->db->query('DELETE FROM ' . $this->session_table . " WHERE adminid = '$adminid'"); } else { return false; } } function destroy_session() { $GLOBALS['_SESSION'] = array(); setcookie($this->session_name, $this->session_id, 1, $this->session_cookie_path, $this->session_cookie_domain, $this->session_cookie_secure); /* ECSHOP 自定义执行部分 */ if (!empty($GLOBALS['ecs'])) { $this->db->query('DELETE FROM ' . $GLOBALS['ecs']->table('cart') . " WHERE session_id = '$this->session_id'"); } /* ECSHOP 自定义执行部分 */ $this->db->query('DELETE FROM ' . $this->session_data_table . " WHERE sesskey = '" . $this->session_id . "' LIMIT 1"); return $this->db->query('DELETE FROM ' . $this->session_table . " WHERE sesskey = '" . $this->session_id . "' LIMIT 1"); } function get_session_id() { return $this->session_id; } function get_users_count() { return $this->db->getOne('SELECT count(*) FROM ' . $this->session_table); } } ?>