osCommerce 程序结结构 - 从application_top.php 开始.
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osCommerce 所有前台程序 第一句都是 ：
require('includes/application_top.php')
加载osCommerce系统环境，要了解osCOmmerce的结构首先的从这个文件开始。 下面详细介绍该文件：
0) && ((bool)ini_get('cgi.fix_pathinfo') == false)) || !isset($HTTP_SERVER_VARS['SCRIPT_NAME'])) ? basename($HTTP_SERVER_VARS['PHP_SELF']) : basename($HTTP_SERVER_VARS['SCRIPT_NAME']);
//判断https目录
if ($request_type == 'NONSSL') {
define('DIR_WS_CATALOG', DIR_WS_HTTP_CATALOG);
} else {
define('DIR_WS_CATALOG', DIR_WS_HTTPS_CATALOG);
}
// 加载预定义程序文件名
require(DIR_WS_INCLUDES . 'filenames.php');
// 加载预定义数据表名
require(DIR_WS_INCLUDES . 'database_tables.php');
// 加载数据库操作核心函数
require(DIR_WS_FUNCTIONS . 'database.php');
// 连接数据库
tep_db_connect() or die('Unable to connect to database server!');
// 加载保存在数据库中osCommerce系统设置
$configuration_query = tep_db_query('select configuration_key as cfgKey, configuration_value as cfgValue from ' . TABLE_CONFIGURATION);
while ($configuration = tep_db_fetch_array($configuration_query)) {
define($configuration['cfgKey'], $configuration['cfgValue']);
}
// 检查 gzip_compression 压缩及输出
if ( (GZIP_COMPRESSION == 'true') && ($ext_zlib_loaded = extension_loaded('zlib')) && !headers_sent() ) {
if (($ini_zlib_output_compression = (int)ini_get('zlib.output_compression')) < 1) {
if (PHP_VERSION < '5.4' || PHP_VERSION > '5.4.5') { // see PHP bug 55544
if (PHP_VERSION >= '4.0.4') {
ob_start('ob_gzhandler');
} elseif (PHP_VERSION >= '4.0.1') {
include(DIR_WS_FUNCTIONS . 'gzip_compression.php');
ob_start();
ob_implicit_flush();
}
}
} elseif (function_exists('ini_set')) {
ini_set('zlib.output_compression_level', GZIP_LEVEL);
}
}
// 检查是否开启seo url, 该功能将? = 的地址替换为 /
if (SEARCH_ENGINE_FRIENDLY_URLS == 'true') {
if (strlen(getenv('PATH_INFO')) > 1) {
$GET_array = array();
$PHP_SELF = str_replace(getenv('PATH_INFO'), '', $PHP_SELF);
$vars = explode('/', substr(getenv('PATH_INFO'), 1));
do_magic_quotes_gpc($vars);
for ($i=0, $n=sizeof($vars); $i<$n; $i++) {
if (strpos($vars[$i], '[]')) {
$GET_array[substr($vars[$i], 0, -2)][] = $vars[$i+1];
} else {
$HTTP_GET_VARS[$vars[$i]] = $vars[$i+1];
}
$i++;
}
if (sizeof($GET_array) > 0) {
while (list($key, $value) = each($GET_array)) {
$HTTP_GET_VARS[$key] = $value;
}
}
}
}
//加载常规函数库 和 html 输出函数库
require(DIR_WS_FUNCTIONS . 'general.php');
require(DIR_WS_FUNCTIONS . 'html_output.php');
//设置cookie 域名
$cookie_domain = (($request_type == 'NONSSL') ? HTTP_COOKIE_DOMAIN : HTTPS_COOKIE_DOMAIN);
$cookie_path = (($request_type == 'NONSSL') ? HTTP_COOKIE_PATH : HTTPS_COOKIE_PATH);
//检查及是否开启缓存
if (USE_CACHE == 'true') include(DIR_WS_FUNCTIONS . 'cache.php');
// 加载购物车核心类
require(DIR_WS_CLASSES . 'shopping_cart.php');
// 加载导航记录类
require(DIR_WS_CLASSES . 'navigation_history.php');
// 加载会话函数库
require(DIR_WS_FUNCTIONS . 'sessions.php');
// 设置会话名
tep_session_name('osCsid');
tep_session_save_path(SESSION_WRITE_DIRECTORY);
// 设置 session cookie 参数
if (function_exists('session_set_cookie_params')) {
session_set_cookie_params(0, $cookie_path, $cookie_domain);
} elseif (function_exists('ini_set')) {
ini_set('session.cookie_lifetime', '0');
ini_set('session.cookie_path', $cookie_path);
ini_set('session.cookie_domain', $cookie_domain);
}
@ini_set('session.use_only_cookies', (SESSION_FORCE_COOKIE_USE == 'True') ? 1 : 0);
// 设置 session ID 如果存在
if (isset($HTTP_POST_VARS[tep_session_name()])) {
tep_session_id($HTTP_POST_VARS[tep_session_name()]);
} elseif ( ($request_type == 'SSL') && isset($HTTP_GET_VARS[tep_session_name()]) ) {
tep_session_id($HTTP_GET_VARS[tep_session_name()]);
}
// 开始会话跟踪
$session_started = false;
if (SESSION_FORCE_COOKIE_USE == 'True') {
tep_setcookie('cookie_test', 'please_accept_for_session', time()+60*60*24*30, $cookie_path, $cookie_domain);
if (isset($HTTP_COOKIE_VARS['cookie_test'])) {
tep_session_start();
$session_started = true;
}
} elseif (SESSION_BLOCK_SPIDERS == 'True') {
$user_agent = strtolower(getenv('HTTP_USER_AGENT'));
$spider_flag = false;
if (tep_not_null($user_agent)) {
$spiders = file(DIR_WS_INCLUDES . 'spiders.txt');
for ($i=0, $n=sizeof($spiders); $i<$n; $i++) {
if (tep_not_null($spiders[$i])) {
if (is_integer(strpos($user_agent, trim($spiders[$i])))) {
$spider_flag = true;
break;
}
}
}
}
if ($spider_flag == false) {
tep_session_start();
$session_started = true;
}
} else {
tep_session_start();
$session_started = true;
}
if ( ($session_started == true) && (PHP_VERSION >= 4.3) && function_exists('ini_get') && (ini_get('register_globals') == false) ) {
extract($_SESSION, EXTR_OVERWRITE+EXTR_REFS);
}
// 初始一个 session 会话
if (!tep_session_is_registered('sessiontoken')) {
$sessiontoken = md5(tep_rand() . tep_rand() . tep_rand() . tep_rand());
tep_session_register('sessiontoken');
}
//设置会话ID
$SID = (defined('SID') ? SID : '');
//会话ID 安全验证
if ( ($request_type == 'SSL') && (SESSION_CHECK_SSL_SESSION_ID == 'True') && (ENABLE_SSL == true) && ($session_started == true) ) {
$ssl_session_id = getenv('SSL_SESSION_ID');
if (!tep_session_is_registered('SSL_SESSION_ID')) {
$SESSION_SSL_ID = $ssl_session_id;
tep_session_register('SESSION_SSL_ID');
}
if ($SESSION_SSL_ID != $ssl_session_id) {
tep_session_destroy();
tep_redirect(tep_href_link(FILENAME_SSL_CHECK));
}
}
//会话-浏览器安全验证
if (SESSION_CHECK_USER_AGENT == 'True') {
$http_user_agent = getenv('HTTP_USER_AGENT');
if (!tep_session_is_registered('SESSION_USER_AGENT')) {
$SESSION_USER_AGENT = $http_user_agent;
tep_session_register('SESSION_USER_AGENT');
}
if ($SESSION_USER_AGENT != $http_user_agent) {
tep_session_destroy();
tep_redirect(tep_href_link(FILENAME_LOGIN));
}
}
// //会话-访问IP安全验证
if (SESSION_CHECK_IP_ADDRESS == 'True') {
$ip_address = tep_get_ip_address();
if (!tep_session_is_registered('SESSION_IP_ADDRESS')) {
$SESSION_IP_ADDRESS = $ip_address;
tep_session_register('SESSION_IP_ADDRESS');
}
if ($SESSION_IP_ADDRESS != $ip_address) {
tep_session_destroy();
tep_redirect(tep_href_link(FILENAME_LOGIN));
}
}
// 初始化购物车
if (!tep_session_is_registered('cart') || !is_object($cart)) {
tep_session_register('cart');
$cart = new shoppingCart;
}
// 初始化货币
require(DIR_WS_CLASSES . 'currencies.php');
$currencies = new currencies();
// 加载邮件类
require(DIR_WS_CLASSES . 'mime.php');
require(DIR_WS_CLASSES . 'email.php');
// 设置及判断前台语言
if (!tep_session_is_registered('language') || isset($HTTP_GET_VARS['language'])) {
if (!tep_session_is_registered('language')) {
tep_session_register('language');
tep_session_register('languages_id');
}
include(DIR_WS_CLASSES . 'language.php');
$lng = new language();
if (isset($HTTP_GET_VARS['language']) && tep_not_null($HTTP_GET_VARS['language'])) {
$lng->set_language($HTTP_GET_VARS['language']);
} else {
$lng->get_browser_language();
}
$language = $lng->language['directory'];
$languages_id = $lng->language['id'];
}
// 加载语言包
require(DIR_WS_LANGUAGES . $language . '.php');
// 设置货币
if (!tep_session_is_registered('currency') || isset($HTTP_GET_VARS['currency']) || ( (USE_DEFAULT_LANGUAGE_CURRENCY == 'true') && (LANGUAGE_CURRENCY != $currency) ) ) {
if (!tep_session_is_registered('currency')) tep_session_register('currency');
if (isset($HTTP_GET_VARS['currency']) && $currencies->is_set($HTTP_GET_VARS['currency'])) {
$currency = $HTTP_GET_VARS['currency'];
} else {
$currency = ((USE_DEFAULT_LANGUAGE_CURRENCY == 'true') && $currencies->is_set(LANGUAGE_CURRENCY)) ? LANGUAGE_CURRENCY : DEFAULT_CURRENCY;
}
}
// 初始化导航
if (!tep_session_is_registered('navigation') || !is_object($navigation)) {
tep_session_register('navigation');
$navigation = new navigationHistory;
}
$navigation->add_current_page();
// 记载事件日志
include('includes/classes/action_recorder.php');
// 购物车操作 添加 删除 更新
if (isset($HTTP_GET_VARS['action'])) {
// redirect the customer to a friendly cookie-must-be-enabled page if cookies are disabled
if ($session_started == false) {
tep_redirect(tep_href_link(FILENAME_COOKIE_USAGE));
}
if (DISPLAY_CART == 'true') {
$goto = FILENAME_SHOPPING_CART;
$parameters = array('action', 'cPath', 'products_id', 'pid');
} else {
$goto = basename($PHP_SELF);
if ($HTTP_GET_VARS['action'] == 'buy_now') {
$parameters = array('action', 'pid', 'products_id');
} else {
$parameters = array('action', 'pid');
}
}
switch ($HTTP_GET_VARS['action']) {
// customer wants to update the product quantity in their shopping cart
case 'update_product' : for ($i=0, $n=sizeof($HTTP_POST_VARS['products_id']); $i<$n; $i++) {
if (in_array($HTTP_POST_VARS['products_id'][$i], (is_array($HTTP_POST_VARS['cart_delete']) ? $HTTP_POST_VARS['cart_delete'] : array()))) {
$cart->remove($HTTP_POST_VARS['products_id'][$i]);
} else {
$attributes = ($HTTP_POST_VARS['id'][$HTTP_POST_VARS['products_id'][$i]]) ? $HTTP_POST_VARS['id'][$HTTP_POST_VARS['products_id'][$i]] : '';
$cart->add_cart($HTTP_POST_VARS['products_id'][$i], $HTTP_POST_VARS['cart_quantity'][$i], $attributes, false);
}
}
tep_redirect(tep_href_link($goto, tep_get_all_get_params($parameters)));
break;
// customer adds a product from the products page
case 'add_product' : if (isset($HTTP_POST_VARS['products_id']) && is_numeric($HTTP_POST_VARS['products_id'])) {
$attributes = isset($HTTP_POST_VARS['id']) ? $HTTP_POST_VARS['id'] : '';
$cart->add_cart($HTTP_POST_VARS['products_id'], $cart->get_quantity(tep_get_uprid($HTTP_POST_VARS['products_id'], $attributes))+1, $attributes);
}
tep_redirect(tep_href_link($goto, tep_get_all_get_params($parameters)));
break;
// customer removes a product from their shopping cart
case 'remove_product' : if (isset($HTTP_GET_VARS['products_id'])) {
$cart->remove($HTTP_GET_VARS['products_id']);
}
tep_redirect(tep_href_link($goto, tep_get_all_get_params($parameters)));
break;
// performed by the 'buy now' button in product listings and review page
case 'buy_now' : if (isset($HTTP_GET_VARS['products_id'])) {
if (tep_has_product_attributes($HTTP_GET_VARS['products_id'])) {
tep_redirect(tep_href_link(FILENAME_PRODUCT_INFO, 'products_id=' . $HTTP_GET_VARS['products_id']));
} else {
$cart->add_cart($HTTP_GET_VARS['products_id'], $cart->get_quantity($HTTP_GET_VARS['products_id'])+1);
}
}
tep_redirect(tep_href_link($goto, tep_get_all_get_params($parameters)));
break;
case 'notify' : if (tep_session_is_registered('customer_id')) {
if (isset($HTTP_GET_VARS['products_id'])) {
$notify = $HTTP_GET_VARS['products_id'];
} elseif (isset($HTTP_GET_VARS['notify'])) {
$notify = $HTTP_GET_VARS['notify'];
} elseif (isset($HTTP_POST_VARS['notify'])) {
$notify = $HTTP_POST_VARS['notify'];
} else {
tep_redirect(tep_href_link(basename($PHP_SELF), tep_get_all_get_params(array('action', 'notify'))));
}
if (!is_array($notify)) $notify = array($notify);
for ($i=0, $n=sizeof($notify); $i<$n; $i++) {
$check_query = tep_db_query("select count(*) as count from " . TABLE_PRODUCTS_NOTIFICATIONS . " where products_id = '" . (int)$notify[$i] . "' and customers_id = '" . (int)$customer_id . "'");
$check = tep_db_fetch_array($check_query);
if ($check['count'] < 1) {
tep_db_query("insert into " . TABLE_PRODUCTS_NOTIFICATIONS . " (products_id, customers_id, date_added) values ('" . (int)$notify[$i] . "', '" . (int)$customer_id . "', now())");
}
}
tep_redirect(tep_href_link(basename($PHP_SELF), tep_get_all_get_params(array('action', 'notify'))));
} else {
$navigation->set_snapshot();
tep_redirect(tep_href_link(FILENAME_LOGIN, '', 'SSL'));
}
break;
case 'notify_remove' : if (tep_session_is_registered('customer_id') && isset($HTTP_GET_VARS['products_id'])) {
$check_query = tep_db_query("select count(*) as count from " . TABLE_PRODUCTS_NOTIFICATIONS . " where products_id = '" . (int)$HTTP_GET_VARS['products_id'] . "' and customers_id = '" . (int)$customer_id . "'");
$check = tep_db_fetch_array($check_query);
if ($check['count'] > 0) {
tep_db_query("delete from " . TABLE_PRODUCTS_NOTIFICATIONS . " where products_id = '" . (int)$HTTP_GET_VARS['products_id'] . "' and customers_id = '" . (int)$customer_id . "'");
}
tep_redirect(tep_href_link(basename($PHP_SELF), tep_get_all_get_params(array('action'))));
} else {
$navigation->set_snapshot();
tep_redirect(tep_href_link(FILENAME_LOGIN, '', 'SSL'));
}
break;
case 'cust_order' : if (tep_session_is_registered('customer_id') && isset($HTTP_GET_VARS['pid'])) {
if (tep_has_product_attributes($HTTP_GET_VARS['pid'])) {
tep_redirect(tep_href_link(FILENAME_PRODUCT_INFO, 'products_id=' . $HTTP_GET_VARS['pid']));
} else {
$cart->add_cart($HTTP_GET_VARS['pid'], $cart->get_quantity($HTTP_GET_VARS['pid'])+1);
}
}
tep_redirect(tep_href_link($goto, tep_get_all_get_params($parameters)));
break;
}
}
// 加载在线客户统计
require(DIR_WS_FUNCTIONS . 'whos_online.php');
tep_update_whos_online();
// 加载密码加密希哈函数
require(DIR_WS_FUNCTIONS . 'password_funcs.php');
// 邮件地址 邮件域 验证函数
require(DIR_WS_FUNCTIONS . 'validations.php');
// 加载分页类
require(DIR_WS_CLASSES . 'split_page_results.php');
// 加载区块函数
require(DIR_WS_CLASSES . 'boxes.php');
//广告 及 自动加载 激活 过期 等
require(DIR_WS_FUNCTIONS . 'banner.php');
tep_activate_banners();
tep_expire_banners();
//特价商品 及 特价自动过期
require(DIR_WS_FUNCTIONS . 'specials.php');
tep_expire_specials();
//加载 模版核心结构
require(DIR_WS_CLASSES . 'osc_template.php');
$oscTemplate = new oscTemplate();
//计算分类层次
if (isset($HTTP_GET_VARS['cPath'])) {
$cPath = $HTTP_GET_VARS['cPath'];
} elseif (isset($HTTP_GET_VARS['products_id']) && !isset($HTTP_GET_VARS['manufacturers_id'])) {
$cPath = tep_get_product_path($HTTP_GET_VARS['products_id']);
} else {
$cPath = '';
}
if (tep_not_null($cPath)) {
$cPath_array = tep_parse_category_path($cPath);
$cPath = implode('_', $cPath_array);
$current_category_id = $cPath_array[(sizeof($cPath_array)-1)];
} else {
$current_category_id = 0;
}
//导航条面包屑类
require(DIR_WS_CLASSES . 'breadcrumb.php');
$breadcrumb = new breadcrumb;
$breadcrumb->add(HEADER_TITLE_TOP, HTTP_SERVER);
$breadcrumb->add(HEADER_TITLE_CATALOG, tep_href_link(FILENAME_DEFAULT));
//自动为分类 添加面包屑
if (isset($cPath_array)) {
for ($i=0, $n=sizeof($cPath_array); $i<$n; $i++) {
$categories_query = tep_db_query("select categories_name from " . TABLE_CATEGORIES_DESCRIPTION . " where categories_id = '" . (int)$cPath_array[$i] . "' and language_id = '" . (int)$languages_id . "'");
if (tep_db_num_rows($categories_query) > 0) {
$categories = tep_db_fetch_array($categories_query);
$breadcrumb->add($categories['categories_name'], tep_href_link(FILENAME_DEFAULT, 'cPath=' . implode('_', array_slice($cPath_array, 0, ($i+1)))));
} else {
break;
}
}
} elseif (isset($HTTP_GET_VARS['manufacturers_id'])) {
$manufacturers_query = tep_db_query("select manufacturers_name from " . TABLE_MANUFACTURERS . " where manufacturers_id = '" . (int)$HTTP_GET_VARS['manufacturers_id'] . "'");
if (tep_db_num_rows($manufacturers_query)) {
$manufacturers = tep_db_fetch_array($manufacturers_query);
$breadcrumb->add($manufacturers['manufacturers_name'], tep_href_link(FILENAME_DEFAULT, 'manufacturers_id=' . $HTTP_GET_VARS['manufacturers_id']));
}
}
// //自动为产品 添加面包
if (isset($HTTP_GET_VARS['products_id'])) {
$model_query = tep_db_query("select products_model from " . TABLE_PRODUCTS . " where products_id = '" . (int)$HTTP_GET_VARS['products_id'] . "'");
if (tep_db_num_rows($model_query)) {
$model = tep_db_fetch_array($model_query);
$breadcrumb->add($model['products_model'], tep_href_link(FILENAME_PRODUCT_INFO, 'cPath=' . $cPath . '&products_id=' . $HTTP_GET_VARS['products_id']));
}
}
// 加载信息输出类
require(DIR_WS_CLASSES . 'message_stack.php');
$messageStack = new messageStack;
?>