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  • ecshop换用redis做缓存

    <?php

    /**
    * ecshop SESSION 保存类
    * ============================================================================
    * 浣跨敤锛涗笉鍏佽?瀵圭▼搴忎唬鐮佷互浠讳綍褰㈠紡浠讳綍鐩?殑鐨勫啀鍙戝竷銆
    * ============================================================================
    * $Author: liubo $
    * $Id: cls_session.php 17217 2011-01-19 06:29:08Z liubo $
    */

    if (!defined('IN_ECTOUCH'))
    {
    die('Hacking attempt');
    }

    class cls_session
    {
    var $db = NULL;
    var $session_table = '';

    var $max_life_time = 1800; // SESSION 保存时间

    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 $redis='';
    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 = '')
    {
    $this->redis = new Redis();
    $this->redis->connect('127.0.0.1', 6379);
    $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;
    //$this->_ip = real_ip();以下代码解决登陆问题
    if(isset($_COOKIE['real_ipd']) && !empty($_COOKIE['real_ipd']))
    {
    $this->_ip = $_COOKIE['real_ipd'];
    }
    else
    {
    $this->_ip = real_ip();
    setcookie("real_ipd", $this->_ip, time()+36000, $this->session_cookie_path);
    }

    if ($session_id == '' && !empty($_COOKIE[$this->session_name]))
    {
    $this->session_id = $_COOKIE[$this->session_name];
    }
    else
    {
    $this->session_id = $session_id;
    }
    if ($this->session_id)
    {
    $tmp_session_id = substr($this->session_id, 0, 32);
    if ($this->gen_session_key($tmp_session_id) == substr($this->session_id, 32))
    {
    $this->session_id = $tmp_session_id;
    }
    else
    {
    $this->session_id = '';
    }
    }

    $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 = '';

    if ($ip == '')
    {
    $ip = substr($this->_ip, 0, strrpos($this->_ip, '.'));
    }

    return sprintf('%08x', crc32(ROOT_PATH . $ip . $session_id));
    }

    function insert_session()
    {
    $sess_array=array();
    //$sess_array["expiry"]=$this->_time;
    $sess_array["ip"]=$this->_ip;
    $sess_array["data"]='a:0:{}';
    $sess=serialize($sess_array);
    $return=$this->redis->set($this->session_id, $sess);
    $this->redis->expire($this->session_id,$max_life_time);
    return $return;
    // 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 . "'");
    $session=$this->redis->get($this->session_id);
    if ($session)
    {
    $this->insert_session();

    $this->session_expiry = 0;
    $this->session_md5 = '40cd750bba9870f18aada2478b24840a';
    $GLOBALS['_SESSION'] = array();
    }
    else
    {
    $session=unserialize($session);
    if (!empty($session['data']))
    {
    $this->session_expiry =$this->max_life_time;
    $this->redis->expire($this->session_id,$max_life_time);
    $this->session_md5 = md5($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'];
    }

    }
    }

    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('expiry' => $this->_time,'data' => $data));

    // $data = '';
    // }
    $sess=array();
    //$sess["expiry"]=$this->_time;
    $sess["ip"]=$this->_ip;
    $sess["userid"]=$userid;
    $sess["user_name"]=$user_name;
    $sess["user_rank"]=$user_rank;
    $sess["discount"]=$discount;
    $sess["email"]=$email;
    $sess["data"]=$data;
    $session=serialize($sess);
    $return=$this->redis->set($this->session_id, $session);
    $this->redis->expire($this->session_id,$this->max_life_time);
    return $return;
    // 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();

    /* 闅忔満瀵 sessions_data 鐨勫簱杩涜?鍒犻櫎鎿嶄綔 */
    // 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->redis->del()
    // // 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 true;
    // }
    }

    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);

    /* weifenxiao 删除购物车 */
    if (!empty($GLOBALS['ecs']))
    {
    $this->db->query('DELETE FROM ' . $GLOBALS['ecs']->table('cart') . " WHERE session_id = '$this->session_id'");
    }
    /* weifenxiao 鑷?畾涔夋墽琛岄儴鍒 */

    // $this->db->query('DELETE FROM ' . $this->session_data_table . " WHERE sesskey = '" . $this->session_id . "' LIMIT 1");
    if (!$this->redis->exists($this->session_id)) {
    return true;
    }
    return $this->redis->del($this->session_id);
    // 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 count($this->redis->key("*"));
    }
    }

    ?>

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  • 原文地址:https://www.cnblogs.com/liuwenbohhh/p/5485636.html
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