ecshop的session放入memcache

2016-07-07 14:55 来源：www.chinab4c.com 作者：ecshop专家



经过很多朋友反馈，ecshop的session表在高并发下。容易提示is full错误。所以我们考虑将ecshop session放入memcache中。大概粗略写了个流程。运行目前没发现问题。把代码粘贴出来。大家一起来完善这个功能
  1. <?php

  3. if (!defined('IN_ECS'))
  4. {
  5. die('Hacking attempt');
  6. }

  8. class cls_session
  9. {
  10. var $db = NULL;
  11. var $session_table = '';

  13. var $max_life_time = 1800; // SESSION 过期时间

  15. var $session_name = '';
  16. var $session_id = '';

  18. var $session_expiry = '';
  19. var $session_md5 = '';

  21. var $session_cookie_path = '/';
  22. var $session_cookie_domain = '';
  23. var $session_cookie_secure = false;
  24. var $memcache = null;
  25. var $_ip = '';
  26. var $_time = 0;

  28. function __c**truct(&$db, $session_table, $session_data_table, $session_name = 'ECS_ID', $session_id = '')
  29. {
  30. $this->cls_session($db, $session_table, $session_data_table, $session_name, $session_id);
  31. }

  33. function cls_session(&$db, $session_table, $session_data_table, $session_name = 'ECS_ID', $session_id = '')
  34. {

  36. $this->memcache = new Memcache();
  37. $this->memcache->connect("127.0.0.1","11211");
  38. $GLOBALS['_SESSION'] = array();

  40. if (!empty($GLOBALS['cookie_path']))
  41. {
  42. $this->session_cookie_path = $GLOBALS['cookie_path'];
  43. }
  44. else
  45. {
  46. $this->session_cookie_path = '/';
  47. }

  49. if (!empty($GLOBALS['cookie_domain']))
  50. {
  51. $this->session_cookie_domain = $GLOBALS['cookie_domain'];
  52. }
  53. else
  54. {
  55. $this->session_cookie_domain = '';
  56. }

  58. if (!empty($GLOBALS['cookie_secure']))
  59. {
  60. $this->session_cookie_secure = $GLOBALS['cookie_secure'];
  61. }
  62. else
  63. {
  64. $this->session_cookie_secure = false;
  65. }

  67. $this->session_name = $session_name;
  68. $this->session_table = $session_table;
  69. $this->session_data_table = $session_data_table;

  71. $this->db = &$db;
  72. $this->_ip = real_ip();

  74. if ($session_id == '' && !empty($_COOKIE[$this->session_name]))
  75. {
  76. $this->session_id = $_COOKIE[$this->session_name];
  77. }
  78. else
  79. {
  80. $this->session_id = $session_id;
  81. }

  83. if ($this->session_id)
  84. {
  85. $tmp_session_id = substr($this->session_id, 0, 32);
  86. if ($this->gen_session_key($tmp_session_id) == substr($this->session_id, 32))
  87. {
  88. $this->session_id = $tmp_session_id;
  89. }
  90. else
  91. {
  92. $this->session_id = '';
  93. }
  94. }

  96. $this->_time = time();

  98. if ($this->session_id)
  99. {
  100. $this->load_session();
  101. }
  102. else
  103. {
  104. $this->gen_session_id();

  106. 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);
  107. }

  109. register_shutdown_function(array(&$this, 'close_session'));
  110. }

  112. function gen_session_id()
  113. {
  114. $this->session_id = md5(uniqid(mt_rand(), true));

  116. return $this->insert_session();
  117. }

  119. function gen_session_key($session_id)
  120. {
  121. static $ip = '';

  123. if ($ip == '')
  124. {
  125. $ip = substr($this->_ip, 0, strrpos($this->_ip, '.'));
  126. }

  128. return sprintf('%08x', crc32(!empty($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] . ROOT_PATH . $ip . $session_id : ROOT_PATH . $ip . $session_id));
  129. }

  131. function insert_session()
  132. {
  133. $ar = array('expiry'=>$this->_time, 'ip'=>$this->_ip, 'data'=>'a:0:{}','userid'=>'0','adminid'=>'0','user_name'=>'','user_rank'=>'','discount'=>'','email'=>'');
  134. return $this->memcache->set($this->session_id, $ar, false, $this->max_life_time);

  136. }

  138. function load_session()
  139. {
  140. $session = $this->memcache->get($this->session_id);
  141. //print_r($session);
  142. if (empty($session))
  143. {
  144. $this->insert_session();

  146. $this->session_expiry = 0;
  147. $this->session_md5 = '40cd750bba9870f18aada2478b24840a';
  148. $GLOBALS['_SESSION'] = array();
  149. }
  150. else
  151. {
  152. if (!empty($session['data']) && $this->_time - $session['expiry'] <= $this->max_life_time)
  153. {
  154. $this->session_expiry = $session['expiry'];
  155. $this->session_md5 = md5(base64_decode($session['data']));

  157. $GLOBALS['_SESSION'] = unserialize(base64_decode($session['data']));
  158. $GLOBALS['_SESSION']['user_id'] = $session['userid'];
  159. $GLOBALS['_SESSION']['admin_id'] = $session['adminid'];
  160. $GLOBALS['_SESSION']['user_name'] = $session['user_name'];
  161. $GLOBALS['_SESSION']['user_rank'] = $session['user_rank'];
  162. $GLOBALS['_SESSION']['discount'] = $session['discount'];
  163. $GLOBALS['_SESSION']['email'] = $session['email'];
  164. }
  165. else
  166. {
  167. $session_data = $this->db->getRow('SELECT data, expiry FROM ' . $this->session_data_table . " WHERE sesskey = '" . $this->session_id . "'");
  168. if (!empty($session_data['data']) && $this->_time - $session_data['expiry'] <= $this->max_life_time)
  169. {
  170. $this->session_expiry = $session_data['expiry'];
  171. $this->session_md5 = md5($session_data['data']);

  173. $GLOBALS['_SESSION'] = unserialize(base64_decode($session['data']));
  174. $GLOBALS['_SESSION']['user_id'] = $session['userid'];
  175. $GLOBALS['_SESSION']['admin_id'] = $session['adminid'];
  176. $GLOBALS['_SESSION']['user_name'] = $session['user_name'];
  177. $GLOBALS['_SESSION']['user_rank'] = $session['user_rank'];
  178. $GLOBALS['_SESSION']['discount'] = $session['discount'];
  179. $GLOBALS['_SESSION']['email'] = $session['email'];
  180. }
  181. else
  182. {
  183. $this->session_expiry = 0;
  184. $this->session_md5 = '40cd750bba9870f18aada2478b24840a';
  185. $GLOBALS['_SESSION'] = array();
  186. }
  187. }
  188. }
  189. }

  191. function update_session()
  192. {
  193. $adminid = !empty($GLOBALS['_SESSION']['admin_id']) ? intval($GLOBALS['_SESSION']['admin_id']) : 0;
  194. $userid = !empty($GLOBALS['_SESSION']['user_id']) ? intval($GLOBALS['_SESSION']['user_id']) : 0;
  195. $user_name = !empty($GLOBALS['_SESSION']['user_name']) ? trim($GLOBALS['_SESSION']['user_name']) : 0;
  196. $user_rank = !empty($GLOBALS['_SESSION']['user_rank']) ? intval($GLOBALS['_SESSION']['user_rank']) : 0;
  197. $discount = !empty($GLOBALS['_SESSION']['discount']) ? round($GLOBALS['_SESSION']['discount'], 2) : 0;
  198. $email = !empty($GLOBALS['_SESSION']['email']) ? trim($GLOBALS['_SESSION']['email']) : 0;
  199. unset($GLOBALS['_SESSION']['admin_id']);
  200. unset($GLOBALS['_SESSION']['user_id']);
  201. unset($GLOBALS['_SESSION']['user_name']);
  202. unset($GLOBALS['_SESSION']['user_rank']);
  203. unset($GLOBALS['_SESSION']['discount']);
  204. unset($GLOBALS['_SESSION']['email']);

  206. $data = base64_encode(serialize(($GLOBALS['_SESSION'])));
  207. $this->_time = time();

  209. if ($this->session_md5 == md5($data) && $this->_time < $this->session_expiry + 10)
  210. {
  211. return true;
  212. }

  214. $data = addslashes($data);

  216. if (isset($data{255}))
  217. {
  218. }

  220. $ar = array('expiry'=>$this->_time, 'ip'=>$this->_ip, 'data'=>$data,'userid'=>$userid,'adminid'=>$adminid,'user_name'=>$user_name,'user_rank'=>$user_rank,'discount'=>number_format($discount,2,".",""),'email'=>$email);

  222. return $this->memcache->replace($this->session_id, $ar, false, $this->max_life_time);


  225. }

  227. function close_session()
  228. {
  229. $this->update_session();


  232. return true;
  233. }

  235. function delete_spec_admin_session($adminid)
  236. {
  237. if (!empty($GLOBALS['_SESSION']['admin_id']) && $adminid)
  238. {

  240. }
  241. else
  242. {
  243. return false;
  244. }
  245. }

  247. function destroy_session()
  248. {
  249. $GLOBALS['_SESSION'] = array();

  251. setcookie($this->session_name, $this->session_id, 1, $this->session_cookie_path, $this->session_cookie_domain, $this->session_cookie_secure);

  253. /* ECSHOP 自定义执行部分 */
  254. if (!empty($GLOBALS['ecs']))
  255. {
  256. $this->db->query('DELETE FROM ' . $GLOBALS['ecs']->table('cart') . " WHERE session_id = '$this->session_id'");
  257. }
  258. /* ECSHOP 自定义执行部分 */

  260. return $this->memcache->delete($this->session_id);
  261. }

  263. function get_session_id()
  264. {
  265. return $this->session_id;
  266. }

  268. function get_users_count()
  269. {
  270. $all_items = $this->db->getExtendedStats();

  272. return $all_items['127.0.0.1:11211']['curr_items'];//由于有其他key的缓存，因此这只是个接近数值

  274. }
  275. }

  277. ?>
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修改记录：
编辑函数改进

  1. function delete_spec_admin_session($adminid)
  2. {
  3. if (!empty($GLOBALS['_SESSION']['admin_id']) && $adminid)
  4. {
  5. //return $this->db->query('DELETE FROM ' . $this->session_table . " WHERE adminid = '$adminid'");
  6. $list = $mem->getExtendedStats('items');
  7. foreach($list['127.0.0.1:11211']['items'] as $k => $v){
  8. //echo $key = $k;echo "--";
  9. // echo $count = $v['number'];
  10. //echo "<br>";echo "<br>";echo "<br>";
  11. $ar = $mem-> getExtendedStats("cachedump", $key, $count);
  12. foreach($ar['127.0.0.1:11211'] as $kk => $vv){

  14. // echo $kk;
  15. //echo "<br>";
  16. $row = $mem->get($kk);
  17. if($row['adminid'] == $adminid){

  19. $mem->delete($kk);

  21. }

  23. }
  24. }
  25. }
  26. else
  27. {
  28. return false;
  29. }
  30. }
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下载测试。。

回答：
有问题一起反馈。我们一起完善。争取把ec的session完善

不错，帮顶下。

不错 支持一下

顶一下。

修改干掉管理员id下的memcache key
  1. function delete_spec_admin_session($adminid)
  2. {
  3. if (!empty($GLOBALS['_SESSION']['admin_id']) && $adminid)
  4. {
  5. //return $this->db->query('DELETE FROM ' . $this->session_table . " WHERE adminid = '$adminid'");
  6. $list = $mem->getExtendedStats('items');
  7. foreach($list['127.0.0.1:11211']['items'] as $k => $v){
  8. //echo $key = $k;echo "--";
  9. // echo $count = $v['number'];
  10. //echo "<br>";echo "<br>";echo "<br>";
  11. $ar = $mem-> getExtendedStats("cachedump", $key, $count);
  12. foreach($ar['127.0.0.1:11211'] as $kk => $vv){

  14. // echo $kk;
  15. //echo "<br>";
  16. $row = $mem->get($kk);
  17. if($row['adminid'] == $adminid){

  19. $mem->delete($kk);

  21. }

  23. }
  24. }
  25. }
  26. else
  27. {
  28. return false;
  29. }
  30. }
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我觉得要顶。。香港PHP空间www.51php.com

这个非常有用 支持一下