ecshop init.php file analysis_PHP tutorial

1. ecshop init.php file analysis
2. 3.
4. /**
5. * ECSHOP front-end public files
6. *
================================ ==========================================
=
7. * Copyright 2005-2008 Shanghai Shangpai Network Technology Co., Ltd., and all rights reserved.
8. * Website address: [url]http://www.ecshop.com[/url];
9. * ------------------ -------------------------------------------------- --------
10. * This is not a free software! You may only modify and use the program code
11. * on the premise that it is not used for commercial purposes; redistribution of the program code in any form or for any purpose is not allowed.
12. *
============================================ ==================================
=
13. * $Author: likai $
14. * $Id: init.php 16132 2009-05-31 08:59:15Z likai $
15.*/
16.
17 . // Cross-domain import of files is prohibited.
18. if (!defined('IN_ECS')){
19. die('Hacking attempt'); // Hacking attempt
20. }
21.
22. // Useless code, later function coverage
23. error_reporting(E_ALL);
24.
25. // Prevent novices from changing this variable from GET POST or new constant Definition.
26. if (__FILE__ == ''){
27. die('Fatal error code: 0');
28. }
29.
30. /* Obtaining the root directory of the current ecshop is more complicated than discuz */
31. define('ROOT_PATH', str_replace('includes/init.php', '', str_replace('', '/', __FILE__))) ;
32.
33. // Determine that the install file in the data directory does not exist && The installation lock file in include does not exist and the
NO_CHECK_INSTALL constant is not defined, so jump to the installation page.
34. if (!file_exists(ROOT_PATH . 'data/install.lock') && !file_exists(ROOT_PATH . 'includes/install.lock')
35. && !defined('NO_CHECK_INSTALL'))
36. {
37. header("Location: ./install/index.phpn");
38. exit;
39. }
40.
41. /* Initialization settings */
42. @ini_set('memory_limit', '64M');
43. @ini_set('session.cache_expire', 180);
44. @ini_set('session.use_trans_sid', 0) ;
45. @ini_set('session.use_cookies', 1);
46. @ini_set('session.auto_start', 0);
47. @ini_set('display_errors', 1); // Turn on error reporting.
48.
49. //Set a common import directory. Wind is .; New directory Linux is .: What is the separation.
50. if (DIRECTORY_SEPARATOR == ''){
51. @ini_set('include_path', '.;' . ROOT_PATH);
52. }
53. else
54. {
55. @ini_set( 'include_path', '.:' . ROOT_PATH);
56. }
57. //Introduce configuration files. Simple configuration.
58. require(ROOT_PATH . 'data/config.php') ;
59.
60. // Develop good habits. Whenever a constant is defined, check whether it has been defined.
61. if (defined('DEBUG_MODE') == false){
62. define('DEBUG_MODE', 0); // Defined as 0
63. }
64.
65. //Version judgment, if the version is lower than 5.1, the table $timezone is not Empty. $timezone comes from the config.php file
66. if (PHP_VERSION >= '5.1' && !empty($timezone))
67. {
68. date_default_timezone_set($timezone); // Set the universal time zone.
69. }
70.
71. //Get the current file, excluding GET;
72. $php_self = isset($_SERVER['PHP_SELF']) ? $ _SERVER['PHP_SELF'] :
$_SERVER['SCRIPT_NAME'];
73.
74. // If the user accesses a directory, the index.php default page will be added automatically.
75 . if ('/' == substr($php_self, -1)){
76. $php_self .= 'index.php';
77. }
78. // Then change the current page The path is defined as a constant, PHP_SELF; There is no domain name orientation.
79. define('PHP_SELF', $php_self);
80.
81. // Start importing files. I will analyze them one by one in the future.
82. require(ROOT_PATH . 'includes/inc_constant.php');
83. require(ROOT_PATH . 'includes/cls_ecshop.php');
84. require(ROOT_PATH . 'includes/cls_error. php');
85.  require(ROOT_PATH . 'includes/lib_time.php'); 
86.  require(ROOT_PATH . 'includes/lib_base.php'); 
87.  require(ROOT_PATH . 'includes/lib_common.php'); 
88.  require(ROOT_PATH . 'includes/lib_main.php'); 
89.  require(ROOT_PATH . 'includes/lib_insert.php'); 
90.  require(ROOT_PATH . 'includes/lib_goods.php'); 
91.  require(ROOT_PATH . 'includes/lib_article.php'); 
92.  
93.  /* 对用户传入的变量进行转义操作。*/ //通用转义方法.  没discuz优化. 
94.  if (!get_magic_quotes_gpc()) 
95.  { 
96.  if (!empty($_GET)) 
97.  { 
98.  $_GET = addslashes_deep($_GET); 
99.  } 
100.  if (!empty($_POST)) 
101.  { 
102.  $_POST = addslashes_deep($_POST); 
103.  } 
104.  
105.  $_COOKIE = addslashes_deep($_COOKIE); 
106.  $_REQUEST = addslashes_deep($_REQUEST); 
107.  } 
108.  
109.  /* 创建  ECSHOP 对象  */ 
110.  $ecs = new ECS($db_name, $prefix); 
111.  
112.  //定义数据目录及图片目录. 
113.  define('DATA_DIR', $ecs->data_dir()); 
114.  define('IMAGE_DIR', $ecs->image_dir()); 
115.  
116.  /* 初始化数据库类  */ 
117.  require(ROOT_PATH . 'includes/cls_mysql.php'); 
118.  $db = new cls_mysql($db_host, $db_user, $db_pass, $db_name); 
119.  // 设置不充许缓存的表,  比如用户动作,栏目. 
120.  $db->set_disable_cache_tables(array($ecs->table('sessions'), $ecs->table('sessions_data'),
$ecs->table('cart'))); 
121.  $db_host = $db_user = $db_pass = $db_name = NULL; 
122.  
123.  /* 创建错误处理对象  */ 
124.  $err = new ecs_error('message.dwt'); 
125.  
126.  /* 载入系统参数  */ 
127.  $_CFG = load_config(); 
128.  
129.  /* 载入语言文件  */ 
130.  require(ROOT_PATH . 'languages/' . $_CFG['lang'] . '/common.php'); 
131.  if ($_CFG['shop_closed'] == 1) 
132.  { 
133.  /* 商店关闭了，输出关闭的消息  */ 
134.  header('Content-type: text/html; charset='.EC_CHARSET); 
135.  
136.  die('

');
137. }
138.
139. if (is_spider())
140. {
141. /* If it is a spider access, the default is guest mode , and not recorded in the log */
142. if (!defined('INIT_NO_USERS'))
143. {
144. define('INIT_NO_USERS', true);
145. / * After integrating UC, if it is a spider access, initialize the constants needed for UC */
146. if($_CFG['integrate_code'] == 'ucenter')
147. {
148. $user = & init_users();
149. }
150. }
151. $_SESSION = array(); $_SESSION['user_name'] = '';
154. $_SESSION['email'] = '';
155. $_SESSION['user_rank'] = 0;
156. $_SESSION[ 'discount'] = 1.00;
162. include(ROOT_PATH . 'includes/cls_session.php');
163.
164. $sess = new cls_session($db, $ecs->table('sessions'), $ ecs->table('sessions_data'));
165.
166. define('SESS_ID', $sess->get_session_id()); 🎜>169. if (!defined('INIT_NO_SMARTY'))
170. {
171. header('Cache-control: private');
172. header('Content-type: text/ html; charset='.EC_CHARSET);
173.
174. /* Create Smarty object. */
175. require(ROOT_PATH . 'includes/cls_template.php');
176. $smarty = new cls_template;
177.
178. $smarty->cache_lifetime = $_CFG ['cache_time'];
179. $smarty->template_dir = ROOT_PATH . 'themes/' . $_CFG['template'];
180. $smarty->cache_dir = ROOT_PATH . 'temp/ caches';
181. $smarty->compile_dir = ROOT_PATH . 'temp/compiled';
182.
183. // Determine whether to update.
184. if ((DEBUG_MODE & 2) == 2)
185. {
186. $smarty->direct_output = true;
187. $smarty->force_compile = true;
188. }
189. else
190. {
191. $smarty->direct_output = false;
192. $smarty->force_compile = false; >195. // Familiar smarty injection.
196. $smarty->assign('lang', $_LANG);
197. $smarty->assign('ecs_charset', EC_CHARSET);
198. // Set CSS file.
199. if (!empty($_CFG['stylename']))
200. {
201. $smarty->assign('ecs_css_path ', 'themes/' . $_CFG['template'] . '/style_' . $_CFG['stylename'] . '.css');
202. }
203. else
204 . {
205. $smarty->assign('ecs_css_path', 'themes/' . $_CFG['template'] . '/style.css');
206. }
207.
208. }
209.
210. if (!defined('INIT_NO_USERS'))
211. {
212. /* Member information */
213. $user =& init_users();
214.
215. if (!isset($_SESSION['user_id']))
216. {
217. /* Get the name of the delivery site */
218. $site_name = isset($_GET['from']) ? $_GET['from'] : addslashes($_LANG['self_site']);
219. $from_ad = !empty($ _GET['ad_id']) ? intval($_GET['ad_id']) : 0;
220.
221. $_SESSION['from_ad'] = $from_ad; // Advertising ID clicked by the user
222. $_SESSION['referer'] = stripslashes($site_name); // User source
223.
224. unset($site_name);
225.
226. if ( !defined('INGORE_VISIT_STATS'))
227. {
228. visit_stats();
229. }
230. }
231.
232. if (empty($ _SESSION['user_id']))
233. {
234. if ($user->get_cookie())
235. {
236. /* If the member has logged in and has not Get member's account balance, points and coupons */
237. if ($_SESSION['user_id'] > 0)
238. {
239. update_user_info();
240.  } 
241.  } 
242.  else 
243.  { 
244.  $_SESSION['user_id'] = 0; 
245.  $_SESSION['user_name'] = ''; 
246.  $_SESSION['email'] = ''; 
247.  $_SESSION['user_rank'] = 0; 
248.  $_SESSION['discount'] = 1.00; 
249.  if (!isset($_SESSION['login_fail'])) 
250.  { 
251.  $_SESSION['login_fail'] = 0; 
252.  } 
253.  } 
254.  } 
255.  
256.  /* 设置推荐会员  */ 
257.  if (isset($_GET['u'])) 
258.  { 
259.  set_affiliate(); 
260.  } 
261.  if (isset($smarty)) 
262.  { 
263.  $smarty->assign('ecs_session', $_SESSION); 
264.  } 
265.  } 
266.  // 修改报错级别. 
267.  if ((DEBUG_MODE & 1) == 1) 
268.  { 
269.  error_reporting(E_ALL); 
270.  } 
271.  else 
272.  { 
273.  error_reporting(E_ALL ^ E_NOTICE); 
274.  } 
275.  if ((DEBUG_MODE & 4) == 4) 
276.  { 
277.  include(ROOT_PATH . 'includes/lib.debug.php'); 
278.  } 
279.  
280.  /* 判断是否支持  Gzip 模式  */ 
281.  if (!defined('INIT_NO_SMARTY') && gzip_enabled()) 
282.  { 
283.  ob_start('ob_gzhandler'); 
284.  } 
285.  else 
286.  { 
287.  ob_start(); 
288.  } 
289.  
290.  ?>