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<?php
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/* --------------------------------------------------------------
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ShopOfflineApplicationTopExtender.inc.php 2022-06-08
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Gambio GmbH
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http://www.gambio.de
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Copyright (c) 2022 Gambio GmbH
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Released under the GNU General Public License (Version 2)
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[http://www.gnu.org/licenses/gpl-2.0.html]
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--------------------------------------------------------------
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*/
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MainFactory::load_class('ShopOfflinePageHelper');
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class ShopOfflineApplicationTopExtender extends ShopOfflineApplicationTopExtender_parent
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{
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/**
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* Proceed.
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*/
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public function proceed()
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{
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parent::proceed();
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if (ShopOfflinePageHelper::pageRebuildNeeded()) {
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ShopOfflinePageHelper::rebuildShopOfflinePage();
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}
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if ($this->toShowOfflineMessage()) {
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header('HTTP/1.1 503 Service Temporarily Unavailable', true, 503);
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header('Retry-After: 3600');
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header('Cache-Control: no-cache');
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header('Content-Type: text/html; charset=' . $_SESSION['language_charset']);
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echo $this->getOfflinePageHtml();
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exit;
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}
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define('SHOP_OFFLINE', !$this->releaseInfoMatchInstalledVersion());
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}
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/**
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* @return bool
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*/
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protected function toShowOfflineMessage()
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{
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return !$this->userLoggedIn()
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&& $this->shopIsOffline()
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&& !$this->attemptLogin()
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&& !$this->updaterRequest()
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&& !$this->cssRequest()
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&& !$this->gambioHubRequest()
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&& !$this->gambioStoreRequest()
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&& !$this->cronJobRequest()
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&& !$this->apiRequest()
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&& !$this->callbackRequest();
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}
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/**
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* @return string
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*/
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protected function getGxShopVersion()
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{
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$gx_version = null;
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include DIR_FS_CATALOG . 'release_info.php';
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return $gx_version;
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}
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/**
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* @return string|null
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*/
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protected function getInstalledShopVersion()
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{
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// do not use gm_get_conf() to avoid caching problems
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$query = 'SELECT `value` FROM `gx_configurations` WHERE `key` = "gm_configuration/INSTALLED_VERSION" LIMIT 1';
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$result = xtc_db_query($query);
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if (1 === xtc_db_num_rows($result)) {
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$row = xtc_db_fetch_array($result);
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$installedVersion = $row['value'];
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}
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return isset($installedVersion) ? $installedVersion : null;
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}
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/**
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* @return bool
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*/
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protected function shopIsOffline()
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{
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return 'checked' === gm_get_conf('GM_SHOP_OFFLINE');
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}
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/**
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* @return bool
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*/
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protected function userLoggedIn()
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{
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return '0' === $_SESSION['customers_status']['customers_status_id'];
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}
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/**
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* @return bool
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*/
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protected function releaseInfoMatchInstalledVersion()
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{
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return $this->getGxShopVersion() === $this->getInstalledShopVersion();
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}
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/**
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* Checks if login is attempted.
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*
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* @return bool True if login is attempted.
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*/
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protected function attemptLogin()
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{
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return isset($_POST['email_address'], $_POST['password'])
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|| isset($_POST['2fa_token'], $_POST['cid'], $_POST['cemail'], $_POST['cpassword']);
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}
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/**
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* Returns true if the current request comes from GambioHub e.g (shop.php?do=shopinfo).
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*
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* @return bool
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*/
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protected function gambioHubRequest()
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{
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if ('shop.php' !== basename(gm_get_env_info('SCRIPT_NAME'))) {
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return false;
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}
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$hubRequest = (string)array_search('shopinfo', array_map('strtolower', $_GET), true);
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return !empty($hubRequest);
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}
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/**
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* Returns true if the current request comes from stylesheet request.
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*
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* @return bool
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*/
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protected function cssRequest()
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{
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if ('dynamic_theme_style.css.php' !== basename(gm_get_env_info('SCRIPT_NAME'))) {
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return false;
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}
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return true;
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}
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/**
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* Returns true if the current request comes from updater request.
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*
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* @return bool
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*/
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protected function updaterRequest()
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{
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if (strpos(gm_get_env_info('SCRIPT_NAME'),'gambio_updater/request_port.php') === false) {
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return false;
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}
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return true;
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}
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/**
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* @return string
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*/
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protected function getOfflinePageHtml()
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{
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return ShopOfflinePageHelper::getShopOfflineHtml();
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}
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/**
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* @return bool
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*/
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protected function gambioStoreRequest()
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{
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if ('shop.php' !== basename(gm_get_env_info('SCRIPT_NAME'))) {
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return false;
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}
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return isset($_GET['do']) && $_GET['do'] === 'GambioStoreCallback/verify';
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}
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/**
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* @return bool
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*/
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protected function apiRequest()
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{
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return 'api.php' === basename(gm_get_env_info('SCRIPT_NAME'));
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}
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/**
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* @return bool
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*/
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protected function cronJobRequest(): bool
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{
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$isShopPhpScript = basename(gm_get_env_info('SCRIPT_NAME')) === 'shop.php';
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if ($isShopPhpScript && isset($_GET['do'])) {
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return 0 === strpos($_GET['do'], 'Cronjob');
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}
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return false;
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}
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/**
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* @return bool
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*/
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protected function callbackRequest(): bool
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{
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return array_key_exists(basename(gm_get_env_info('SCRIPT_NAME')), [
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'magnaCallback.php' => true,
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'api-it-recht-kanzlei.php' => true,
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]);
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}
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}
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