initial commit

hamrokhaanpaan/wp-content/__plugins/wp-optimize/cache/file-based-page-cache.php

@@ -0,0 +1,130 @@
+<?php
+
+if (!defined('ABSPATH')) die('No direct access allowed');
+
+/**
+ * File based page cache drop in
+ */
+require_once(dirname(__FILE__) . '/file-based-page-cache-functions.php');
+
+if (!defined('WPO_CACHE_DIR')) define('WPO_CACHE_DIR', untrailingslashit(WP_CONTENT_DIR) . '/wpo-cache');
+
+/**
+ * Load extensions.
+ */
+wpo_cache_load_extensions();
+
+/**
+ * Action triggered when the cache extensions are all loaded. Allows to execute code depending on an other extension, without knowing the order in which the files are loaded.
+ */
+if (function_exists('do_action')) {
+	do_action('wpo_cache_extensions_loaded');
+}
+
+$no_cache_because = array();
+
+// check if we want to cache current page.
+if (function_exists('add_filter') && function_exists('apply_filters')) {
+	add_filter('wpo_restricted_cache_page_type', 'wpo_restricted_cache_page_type');
+	$restricted_cache_page_type = apply_filters('wpo_restricted_cache_page_type', false);
+} else {
+	// On old WP versions, you can't filter the result
+	$restricted_cache_page_type = wpo_restricted_cache_page_type(false);
+}
+
+if ($restricted_cache_page_type) {
+	$no_cache_because[] = $restricted_cache_page_type;
+}
+
+// Don't cache non-GET requests.
+if (!isset($_SERVER['REQUEST_METHOD']) || 'GET' !== $_SERVER['REQUEST_METHOD']) {
+	$no_cache_because[] = 'The request method was not GET ('.(isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] : '-').')';
+}
+
+$file_extension = $_SERVER['REQUEST_URI'];
+$file_extension = preg_replace('#^(.*?)\?.*$#', '$1', $file_extension);
+$file_extension = trim(preg_replace('#^.*\.(.*)$#', '$1', $file_extension));
+
+// Don't cache disallowed extensions. Prevents wp-cron.php, xmlrpc.php, etc.
+if (!preg_match('#index\.php$#i', $_SERVER['REQUEST_URI']) && !preg_match('#sitemap([a-zA-Z0-9_-]+)?\.xml$#i', $_SERVER['REQUEST_URI']) && in_array($file_extension, array('php', 'xml', 'xsl'))) {
+	$no_cache_because[] = 'The request extension is not suitable for caching';
+}
+
+// Don't cache if logged in.
+if (!empty($_COOKIE)) {
+	$wp_cookies = array('wordpressuser_', 'wordpresspass_', 'wordpress_sec_', 'wordpress_logged_in_');
+
+	if (!wpo_cache_loggedin_users()) {
+		foreach ($_COOKIE as $key => $value) {
+			foreach ($wp_cookies as $cookie) {
+				if (false !== strpos($key, $cookie)) {
+					$no_cache_because[] = 'WordPress login cookies were detected';
+					break(2);
+				}
+			}
+		}
+	}
+
+	if (!empty($_COOKIE['wpo_commented_post'])) {
+		$no_cache_because[] = 'The user has commented on a post (comment cookie set)';
+	}
+
+	// get cookie exceptions from options.
+	$cache_exception_cookies = !empty($GLOBALS['wpo_cache_config']['cache_exception_cookies']) ? $GLOBALS['wpo_cache_config']['cache_exception_cookies'] : array();
+	// filter cookie exceptions, since WP 4.6
+	$cache_exception_cookies = function_exists('apply_filters') ? apply_filters('wpo_cache_exception_cookies', $cache_exception_cookies) : $cache_exception_cookies;
+
+	// check if any cookie exists from exception list.
+	if (!empty($cache_exception_cookies)) {
+		foreach ($_COOKIE as $key => $value) {
+			foreach ($cache_exception_cookies as $cookie) {
+				if ('' != trim($cookie) && false !== strpos($key, $cookie)) {
+					$no_cache_because[] = 'An excepted cookie was set ('.$key.')';
+					break 2;
+				}
+			}
+		}
+	}
+}
+
+// check in not disabled current user agent
+if (!empty($_SERVER['HTTP_USER_AGENT']) && false === wpo_is_accepted_user_agent($_SERVER['HTTP_USER_AGENT'])) {
+	$no_cache_because[] = "In the settings, caching is disabled for matches for this request's user agent";
+}
+
+// Deal with optional cache exceptions.
+if (wpo_url_in_exceptions(wpo_current_url())) {
+	$no_cache_because[] = 'In the settings, caching is disabled for matches for the current URL';
+}
+
+if (!empty($_GET)) {
+	// get variables used for building filename.
+	$get_variable_names = wpo_cache_query_variables();
+
+	$get_variables = wpo_cache_maybe_ignore_query_variables(array_keys($_GET));
+
+	// if GET variables include one or more undefined variable names then we don't cache.
+	$get_variables_diff = array_diff($get_variables, $get_variable_names);
+	if (!empty($get_variables_diff)) {
+		$no_cache_because[] = "In the settings, caching is disabled for matches for one of the current request's GET parameters";
+	}
+}
+
+if (!empty($no_cache_because)) {
+	$no_cache_because_message = implode(', ', $no_cache_because);
+
+	// Add http header
+	if (!defined('DOING_CRON') || !DOING_CRON) {
+		wpo_cache_add_nocache_http_header($no_cache_because_message);
+	}
+
+	// Only output if the user has turned on debugging output
+	if (((defined('WP_DEBUG') && WP_DEBUG) || isset($_GET['wpo_cache_debug'])) && (!defined('DOING_CRON') || !DOING_CRON)) {
+		wpo_cache_add_footer_output("Page not served from cache because: ".htmlspecialchars($no_cache_because_message));
+	}
+	return;
+}
+
+wpo_serve_cache();
+
+ob_start('wpo_cache');