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preload_user_agent = true; }else{ $this->preload_user_agent = false; } $this->options = $this->getOptions(); $this->set_cdn(); $this->set_cache_file_path(); $this->set_exclude_rules(); if(isset($this->options->wpFastestCacheDisableEmojis) && $this->options->wpFastestCacheDisableEmojis){ add_action('init', array($this, 'disable_emojis')); } } public function disable_emojis(){ remove_action('wp_head', 'print_emoji_detection_script', 7); remove_action('admin_print_scripts', 'print_emoji_detection_script'); remove_filter('the_content_feed', 'wp_staticize_emoji'); remove_filter('comment_text_rss', 'wp_staticize_emoji'); remove_action('wp_print_styles', 'print_emoji_styles'); remove_action('admin_print_styles', 'print_emoji_styles'); remove_filter('wp_mail', 'wp_staticize_emoji_for_email'); // remove the DNS prefetch add_filter('emoji_svg_url', '__return_false'); } public function detect_current_page_type(){ if(preg_match("/\?/", $_SERVER["REQUEST_URI"])){ return true; } if(preg_match("/^\/wp-json/", $_SERVER["REQUEST_URI"])){ return true; } if(is_front_page()){ echo ""; }else if(is_category()){ echo ""; }else if(is_tag()){ echo ""; }else if(is_singular('post')){ echo ""; }else if(is_page()){ echo ""; }else if(is_attachment()){ echo ""; }else if(is_archive()){ echo ""; } } public function set_exclude_rules(){ if($json_data = get_option("WpFastestCacheExclude")){ $this->exclude_rules = json_decode($json_data); } } public function set_cache_file_path(){ $type = "all"; if($this->isMobile() && isset($this->options->wpFastestCacheMobile)){ if(class_exists("WpFcMobileCache") && isset($this->options->wpFastestCacheMobileTheme)){ $type = "wpfc-mobile-cache"; } } if($this->isPluginActive('gtranslate/gtranslate.php')){ if(isset($_SERVER["HTTP_X_GT_LANG"])){ $this->cacheFilePath = $this->getWpContentDir("/cache/".$type."/").$_SERVER["HTTP_X_GT_LANG"].$_SERVER["REQUEST_URI"]; }else if(isset($_SERVER["REDIRECT_URL"]) && $_SERVER["REDIRECT_URL"] != "/index.php"){ $redirect_url = $_SERVER["REDIRECT_URL"]; if(isset($_SERVER["REDIRECT_QUERY_STRING"]) && defined('WPFC_CACHE_QUERYSTRING') && WPFC_CACHE_QUERYSTRING){ $redirect_url .= "?".$_SERVER["REDIRECT_QUERY_STRING"]; } $this->cacheFilePath = $this->getWpContentDir("/cache/" . $type . "/") . $redirect_url; }else if(isset($_SERVER["REQUEST_URI"])){ $this->cacheFilePath = $this->getWpContentDir("/cache/".$type."/").$_SERVER["REQUEST_URI"]; } }else{ $this->cacheFilePath = $this->getWpContentDir("/cache/".$type."/").$_SERVER["REQUEST_URI"]; // for /?s= $this->cacheFilePath = preg_replace("/(\/\?s\=)/", "$1/", $this->cacheFilePath); } $this->cacheFilePath = $this->cacheFilePath ? rtrim($this->cacheFilePath, "/")."/" : ""; /* /public_html/wp-content/cache/all/sample-page */ $this->cacheFilePath = preg_replace("/\/cache\/(all|wpfc-mobile-cache)\/\//", "/cache/$1/", $this->cacheFilePath); /* /public_html/wp-content/cache/all/DOMAIN.COM/sample-page */ $this->cacheFilePath = preg_replace("/\/cache\/([^\/]+)\/(all|wpfc-mobile-cache)\/\//", "/cache/$1/$2/", $this->cacheFilePath); if(strlen($_SERVER["REQUEST_URI"]) > 1){ // for the sub-pages if(!preg_match("/\.(html|xml)/i", $_SERVER["REQUEST_URI"])){ if($this->is_trailing_slash()){ if(!preg_match("/\/$/", $_SERVER["REQUEST_URI"])){ if(isset($_SERVER["QUERY_STRING"]) && $_SERVER["QUERY_STRING"] && defined('WPFC_CACHE_QUERYSTRING') && WPFC_CACHE_QUERYSTRING){ }else if(preg_match("/y(ad|s)?clid\=/i", $this->cacheFilePath)){ // yclid // yadclid // ysclid }else if(preg_match("/gclid\=/i", $this->cacheFilePath)){ }else if(preg_match("/fbclid\=/i", $this->cacheFilePath)){ }else if(preg_match("/utm_(source|medium|campaign|content|term)/i", $this->cacheFilePath)){ }else if(preg_match("/srsltid\=/i", $this->cacheFilePath)){ }else{ $this->cacheFilePath = false; } } }else{ //toDo } } } $this->remove_url_paramters(); // to decode path if it is not utf-8 if($this->cacheFilePath){ $this->cacheFilePath = urldecode($this->cacheFilePath); } // for security if(preg_match("/\.{2,}/", $this->cacheFilePath)){ $this->cacheFilePath = false; } if(preg_match("/\/{2,}/", $this->cacheFilePath)){ $this->cacheFilePath = false; } if($this->isMobile()){ if(isset($this->options->wpFastestCacheMobile)){ if(!class_exists("WpFcMobileCache")){ $this->cacheFilePath = false; }else{ if(!isset($this->options->wpFastestCacheMobileTheme)){ $this->cacheFilePath = false; } } } } } public function remove_url_paramters(){ if(isset($_SERVER["QUERY_STRING"]) && $_SERVER["QUERY_STRING"]){ $query_params = explode("&", $_SERVER["QUERY_STRING"]); $action = true; foreach ($query_params as $key => $query_param) { //to remove query strings for cache if Google Click Identifier are set if(preg_match("/^gclid\=/i", $query_param)){ continue; } //to remove query strings for cache if Yandex parameters are set if(preg_match("/^y(ad|s)?clid\=/i", $query_param)){ // yclid // yadclid // ysclid continue; } //to remove query strings for cache if facebook parameters are set if(preg_match("/^fbclid\=/i", $query_param)){ continue; } //to remove query strings for cache if google analytics parameters are set if(preg_match("/^utm_(source|medium|campaign|content|term)/i", $query_param)){ continue; } //to remove query strings for cache if google merchant center parameters are set if(preg_match("/^srsltid\=/i", $query_param)){ continue; } $action = false; } if($action){ if(strlen($_SERVER["REQUEST_URI"]) > 1){ // for the sub-pages $this->cacheFilePath = preg_replace("/\/*\?.+/", "", $this->cacheFilePath); $this->cacheFilePath = $this->cacheFilePath."/"; if(!defined('WPFC_CACHE_QUERYSTRING')){ define('WPFC_CACHE_QUERYSTRING', true); } } } } } public function set_cdn(){ $cdn_values = get_option("WpFastestCacheCDN"); if($cdn_values){ $std_obj = json_decode($cdn_values); $arr = array(); if(is_array($std_obj)){ $arr = $std_obj; }else{ array_push($arr, $std_obj); } foreach ($arr as $key => &$std) { $std->originurl = trim($std->originurl); $std->originurl = trim($std->originurl, "/"); $std->originurl = preg_replace("/http(s?)\:\/\/(www\.)?/i", "", $std->originurl); $std->cdnurl = trim($std->cdnurl); $std->cdnurl = trim($std->cdnurl, "/"); if(!preg_match("/https\:\/\//", $std->cdnurl)){ $std->cdnurl = "//".preg_replace("/http(s?)\:\/\/(www\.)?/i", "", $std->cdnurl); } } $this->cdn = $arr; } } public function checkShortCode($content){ if(preg_match("/\[wpfcNOT\]/", $content)){ if(!is_home() || !is_archive()){ $this->blockCache = true; } $content = str_replace("[wpfcNOT]", "", $content); } return $content; } public function createCache(){ if(isset($this->options->wpFastestCacheStatus)){ // to exclude static pdf files if(preg_match("/\.pdf$/i", $_SERVER["REQUEST_URI"])){ return 0; } // to check logged-in user if(isset($this->options->wpFastestCacheLoggedInUser) && $this->options->wpFastestCacheLoggedInUser == "on"){ foreach ((array)$_COOKIE as $cookie_key => $cookie_value){ if(preg_match("/wordpress_logged_in/i", $cookie_key)){ ob_start(array($this, "cdn_rewrite")); return 0; } } } // to exclude admin users if($this->is_user_admin()){ return 0; } // to check comment author foreach ((array)$_COOKIE as $cookie_key => $cookie_value){ if(preg_match("/comment_author_/i", $cookie_key)){ ob_start(array($this, "cdn_rewrite")); return 0; } } if(isset($_COOKIE) && isset($_COOKIE['safirmobilswitcher'])){ ob_start(array($this, "cdn_rewrite")); return 0; } if(isset($_COOKIE) && isset($_COOKIE["wptouch-pro-view"])){ if($this->is_wptouch_smartphone()){ if($_COOKIE["wptouch-pro-view"] == "desktop"){ ob_start(array($this, "cdn_rewrite")); return 0; } } } if(preg_match("/\?/", $_SERVER["REQUEST_URI"]) && !preg_match("/\/\?fdx\_switcher\=true/", $_SERVER["REQUEST_URI"])){ // for WP Mobile Edition if(preg_match("/\?amp(\=1)?/i", $_SERVER["REQUEST_URI"])){ // }else if(defined('WPFC_CACHE_QUERYSTRING') && WPFC_CACHE_QUERYSTRING){ // }else if(isset($_GET["wc-api"]) && $_GET["wc-api"]){ // }else{ ob_start(array($this, "cdn_rewrite")); return 0; } } if(preg_match("/(".$this->get_excluded_useragent().")/", $_SERVER['HTTP_USER_AGENT'])){ return 0; } if(isset($_SERVER['REQUEST_URI']) && preg_match("/(\/){2}$/", $_SERVER['REQUEST_URI'])){ return 0; } // to check permalink if it does not end with slash if(isset($_SERVER['REQUEST_URI']) && preg_match("/[^\/]+\/$/", $_SERVER['REQUEST_URI'])){ if(!preg_match("/\/$/", get_option('permalink_structure'))){ return 0; } } if(isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] == "POST"){ return 0; } if(preg_match("/^https/i", get_option("home")) && !is_ssl()){ //Must be secure connection return 0; } if(!preg_match("/^https/i", get_option("home")) && is_ssl()){ //must be normal connection if(!$this->isPluginActive('really-simple-ssl/rlrsssl-really-simple-ssl.php')){ if(!$this->isPluginActive('really-simple-ssl-pro/really-simple-ssl-pro.php')){ if(!$this->isPluginActive('really-simple-ssl-on-specific-pages/really-simple-ssl-on-specific-pages.php')){ if(!$this->isPluginActive('ssl-insecure-content-fixer/ssl-insecure-content-fixer.php')){ if(!$this->isPluginActive('https-redirection/https-redirection.php')){ if(!$this->isPluginActive('better-wp-security/better-wp-security.php')){ return 0; } } } } } } } if(isset($_SERVER["DOCUMENT_ROOT"]) && preg_match("/bitnami/", $_SERVER["DOCUMENT_ROOT"])){ // to disable cache for the IP based urls on the bitnami servers // /opt/bitnami/apps/wordpress/htdocs if(preg_match("/(?:[0-9]{1,3}\.){3}[0-9]{1,3}/", get_option("home"))){ return 0; } } if(preg_match("/www\./i", get_option("home")) && !preg_match("/www\./i", $_SERVER['HTTP_HOST'])){ return 0; } if(!preg_match("/www\./i", get_option("home")) && preg_match("/www\./i", $_SERVER['HTTP_HOST'])){ return 0; } if($this->exclude_page()){ ob_start(array($this, "cdn_rewrite")); //echo ""."\n"; return 0; } // http://mobiledetect.net/ does not contain the following user-agents if(preg_match("/Nokia309|Casper_VIA/i", $_SERVER['HTTP_USER_AGENT'])){ return 0; } if(preg_match("/Empty\sUser\sAgent/i", $_SERVER['HTTP_USER_AGENT'])){ // not to show the cache for command line return 0; } //to show cache version via php if htaccess rewrite rule does not work if(!$this->preload_user_agent && $this->cacheFilePath && (@file_exists($this->cacheFilePath."index.html") || @file_exists($this->cacheFilePath."index.json") || @file_exists($this->cacheFilePath."index.xml"))){ $via_php = ""; if(@file_exists($this->cacheFilePath."index.json")){ $file_extension = "json"; header('Content-type: application/json'); }else if(@file_exists($this->cacheFilePath."index.xml")){ $file_extension = "xml"; header('Content-type: text/xml'); }else{ $file_extension = "html"; $via_php = ""; } if($content = @file_get_contents($this->cacheFilePath."index.".$file_extension)){ if($file_extension == "html"){ header('Last-Modified: '.gmdate('D, d M Y H:i:s', filemtime($this->cacheFilePath."index.".$file_extension)).' GMT', true, 200); } if(defined('WPFC_REMOVE_VIA_FOOTER_COMMENT') && WPFC_REMOVE_VIA_FOOTER_COMMENT){ $via_php = ""; } $content = $content.$via_php; die($content); } }else{ if($this->isMobile()){ if(class_exists("WpFcMobileCache") && isset($this->options->wpFastestCacheMobileTheme)){ if(isset($this->options->wpFastestCacheMobileTheme_themename) && $this->options->wpFastestCacheMobileTheme_themename){ $create_cache = true; }else if($this->isPluginActive('wptouch/wptouch.php') || $this->isPluginActive('wptouch-pro/wptouch-pro.php')){ //to check that user-agent exists in wp-touch's list or not if($this->is_wptouch_smartphone()){ $create_cache = true; }else{ $create_cache = false; } }else if($this->isPluginActive('any-mobile-theme-switcher/any-mobile-theme-switcher.php')){ if($this->is_anymobilethemeswitcher_mobile()){ $create_cache = true; }else{ $create_cache = false; } }else{ if((preg_match('/iPhone/', $_SERVER['HTTP_USER_AGENT']) && preg_match('/Mobile/', $_SERVER['HTTP_USER_AGENT'])) || (preg_match('/Android/', $_SERVER['HTTP_USER_AGENT']) && preg_match('/Mobile/', $_SERVER['HTTP_USER_AGENT']))){ $create_cache = true; }else{ $create_cache = false; } } }else if(!isset($this->options->wpFastestCacheMobile) && !isset($this->options->wpFastestCacheMobileTheme)){ $create_cache = true; }else{ $create_cache = false; } }else{ $create_cache = true; } if($create_cache){ $this->startTime = microtime(true); add_action('wp', array($this, "detect_current_page_type")); add_action('get_footer', array($this, "detect_current_page_type")); add_action('get_footer', array($this, "wp_print_scripts_action")); // to exclude current page hook add_action("wpfc_exclude_current_page", array($this, 'exclude_current_page'), 10, 0); ob_start(array($this, "callback")); } } } } public function is_user_admin(){ global $wpdb; foreach ((array)$_COOKIE as $cookie_key => $cookie_value){ if(preg_match("/wordpress_logged_in/i", $cookie_key)){ $username = preg_replace("/^([^\|]+)\|.+/", "$1", $cookie_value); break; } } if(isset($username) && $username){ $username = esc_sql($username); $res = $wpdb->get_var("SELECT `$wpdb->users`.`ID`, `$wpdb->users`.`user_login`, `$wpdb->usermeta`.`meta_key`, `$wpdb->usermeta`.`meta_value` FROM `$wpdb->users` INNER JOIN `$wpdb->usermeta` ON `$wpdb->users`.`user_login` = \"$username\" AND `$wpdb->usermeta`.`meta_key` LIKE \"%_user_level\" AND `$wpdb->usermeta`.`meta_value` = \"10\" AND `$wpdb->users`.`ID` = `$wpdb->usermeta`.user_id ;" ); return $res; } return false; } public function exclude_current_page($some = true){ $via = debug_backtrace(); if(isset($via) && is_array($via)){ foreach ($via as $key => $value){ if($value["function"] == "wpfc_exclude_current_page"){ if(defined('WPFC_DEBUG') && (WPFC_DEBUG === true)){ if(preg_match("/wp-content\/themes/", $value["file"])){ $this->exclude_current_page_text = ""; }else if(preg_match("/wp-content\/plugins/", $value["file"])){ $this->exclude_current_page_text = ""; } }else{ $this->exclude_current_page_text = ""; } break; } } } } public function wp_print_scripts_action(){ echo ""; } public function ignored($buffer){ $list = array( "\/wp\-comments\-post\.php", "\/wp\-login\.php", "\/robots\.txt", "\/wp\-cron\.php", "\/wp\-content", "\/wp\-admin", "\/wp\-includes", "\/index\.php", "\/xmlrpc\.php", "\/wp\-api\/", "leaflet\-geojson\.php", "\/clientarea\.php" ); if($this->isPluginActive('woocommerce/woocommerce.php')){ if($this->current_page_type != "homepage"){ global $post; if(isset($post->ID) && $post->ID){ if(function_exists("wc_get_page_id")){ $woocommerce_ids = array(); //wc_get_page_id('product') //wc_get_page_id('product-category') array_push($woocommerce_ids, wc_get_page_id('cart'), wc_get_page_id('checkout'), wc_get_page_id('receipt'), wc_get_page_id('confirmation'), wc_get_page_id('myaccount')); if (in_array($post->ID, $woocommerce_ids)) { return true; } } } //"\/product" //"\/product-category" array_push($list, "\/cart\/?$", "\/checkout", "\/receipt", "\/confirmation", "\/wc-api\/"); } } if($this->isPluginActive('wp-easycart/wpeasycart.php')){ array_push($list, "\/cart"); } if($this->isPluginActive('easy-digital-downloads/easy-digital-downloads.php')){ array_push($list, "\/cart", "\/checkout"); } if(preg_match("/".implode("|", $list)."/i", $_SERVER["REQUEST_URI"])){ return true; } return false; } public function exclude_page($buffer = false){ $preg_match_rule = ""; //$request_url = urldecode(trim($_SERVER["REQUEST_URI"], "/")); $request_url = urldecode($_SERVER["REQUEST_URI"]); if($this->exclude_rules){ foreach((array)$this->exclude_rules as $key => $value){ $value->type = isset($value->type) ? $value->type : "page"; if($value->prefix == "yandexclickid"){ if(preg_match("/y(ad|s)?clid\=/i", $request_url)){ // yclid // yadclid // ysclid return true; } }else if($value->prefix == "googleanalytics"){ if(preg_match("/utm_(source|medium|campaign|content|term)/i", $request_url)){ return true; } }else if(isset($value->prefix) && $value->prefix && ($value->type == "page")){ $value->content = trim($value->content); //$value->content = trim($value->content, "/"); if($buffer && preg_match("/^(homepage|category|tag|post|page|archive|attachment)$/", $value->prefix)){ if(preg_match('/<\!--WPFC_PAGE_TYPE_'.$value->prefix.'-->/i', $buffer)){ return true; } }else if($value->prefix == "exact"){ $request_url = trim($request_url, "/"); $value->content = trim($value->content, "/"); if(strtolower($value->content) == strtolower($request_url)){ return true; } }else if($value->prefix == "regex"){ if(preg_match("/".$value->content."/i", $request_url)){ return true; } }else{ if($value->prefix == "startwith"){ $request_url = ltrim($request_url, "/"); $value->content = ltrim($value->content, "/"); $preg_match_rule = "^".preg_quote($value->content, "/"); }else if($value->prefix == "contain"){ $preg_match_rule = preg_quote($value->content, "/"); } if($preg_match_rule){ if(preg_match("/".$preg_match_rule."/i", $request_url)){ return true; } } } }else if($value->type == "useragent"){ if(preg_match("/".preg_quote($value->content, "/")."/i", $_SERVER['HTTP_USER_AGENT'])){ return true; } }else if($value->type == "cookie"){ if(isset($_SERVER['HTTP_COOKIE'])){ if(preg_match("/".preg_quote($value->content, "/")."/i", $_SERVER['HTTP_COOKIE'])){ return true; } } } } } return false; } public function is_json(){ return $this->current_page_content_type == "json" ? true : false; // if(isset($_SERVER["HTTP_ACCEPT"]) && preg_match("/json/i", $_SERVER["HTTP_ACCEPT"])){ // return true; // } // if(preg_match("/^\/wp-json/", $_SERVER["REQUEST_URI"])){ // return true; // } // if(preg_match("/^\s*\{\s*[\"\']/i", $buffer)){ // return true; // } // if(preg_match("/^\s*\[\s*\{\s*[\"\']/i", $buffer)){ // return true; // } // return false; } public function is_xml(){ return $this->current_page_content_type == "xml" ? true : false; // if(preg_match("/^\s*\<\?xml/i", $buffer)){ // return true; // } // return false; } public function is_html(){ return $this->current_page_content_type == "html" ? true : false; } public function set_current_page_type($buffer){ preg_match('/<\!--WPFC_PAGE_TYPE_([a-z]+)-->/i', $buffer, $out); $this->current_page_type = isset($out[1]) ? $out[1] : false; } public function set_current_page_content_type($buffer){ $content_type = false; if(function_exists("headers_list")){ $headers = headers_list(); foreach($headers as $header){ if(preg_match("/Content-Type\:/i", $header)){ $content_type = preg_replace("/Content-Type\:\s(.+)/i", "$1", $header); } } } if(preg_match("/xml/i", $content_type)){ $this->current_page_content_type = "xml"; }else if(preg_match("/json/i", $content_type)){ $this->current_page_content_type = "json"; }else{ $this->current_page_content_type = "html"; } } public function last_error($buffer = false){ if(function_exists("http_response_code") && (http_response_code() === 404)){ return true; } if(is_404()){ return true; } //to exclude "There has been a critical error on this website" page if(preg_match("/\s*/i", $buffer)){ return true; } } public function callback($buffer){ $this->set_current_page_type($buffer); $this->set_current_page_content_type($buffer); $buffer = $this->checkShortCode($buffer); // for Wordfence: not to cache 503 pages if(defined('DONOTCACHEPAGE') && $this->isPluginActive('wordfence/wordfence.php')){ if(function_exists("http_response_code") && http_response_code() == 503){ return $buffer.""; } } // Prevent caching of 403 Forbidden error pages. // This is particularly important for compatibility with the following security plugins: // 1. iThemes Security // 2. Defender Security if(defined('DONOTCACHEPAGE')){ if(function_exists("http_response_code") && http_response_code() == 403){ return $buffer.""; } } // for Divi Theme if(defined('DONOTCACHEPAGE') && (get_template() == "Divi")){ if(isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest'){ // /?wc-ajax=dgwt_wcas_ajax_search&s=keyword&l=en return $buffer; } return $buffer.""; } if($this->exclude_page($buffer)){ $buffer = preg_replace('/<\!--WPFC_PAGE_TYPE_[a-z]+-->/i', '', $buffer); $buffer = $this->cdn_rewrite($buffer); return $buffer; } $buffer = preg_replace('/<\!--WPFC_PAGE_TYPE_[a-z]+-->/i', '', $buffer); if($this->is_html()){ $tmp_buffer = (string) apply_filters('wpfc_buffer_callback_filter', $buffer, "html", $this->cacheFilePath); if(!$tmp_buffer){ return $buffer; }else{ $buffer = $tmp_buffer; } } if($this->exclude_current_page_text){ return $buffer.$this->exclude_current_page_text; }else if($this->is_json() && (!defined('WPFC_CACHE_JSON') || (defined('WPFC_CACHE_JSON') && WPFC_CACHE_JSON !== true))){ return $buffer; }else if(preg_match("/Mediapartners-Google|Google\sWireless\sTranscoder/i", $_SERVER['HTTP_USER_AGENT'])){ return $buffer; }else if (is_user_logged_in() || $this->isCommenter()){ return $buffer; }else if($this->isPasswordProtected($buffer)){ return $buffer.""; }else if($this->isWpLogin($buffer)){ return $buffer.""; }else if($this->hasContactForm7WithCaptcha($buffer)){ return $buffer.""; }else if($this->last_error($buffer)){ return $buffer; }else if($this->ignored($buffer)){ return $buffer; }else if($this->blockCache === true){ return $buffer.""; }else if(isset($_GET["preview"])){ return $buffer.""; }else if($this->checkHtml($buffer)){ if(preg_match("/^.*$/s", $buffer)){ // Check if the buffer has only one line (no line breaks) return $buffer; }else{ return $buffer.""; } }else if((function_exists("http_response_code")) && (http_response_code() == 301 || http_response_code() == 302)){ return $buffer; }else if(!$this->cacheFilePath){ return $buffer.""; }else{ $content = $buffer; if(isset($this->options->wpFastestCacheDelayJS) && method_exists("WpFastestCachePowerfulHtml", "render_blocking")){ if(file_exists(WPFC_WP_PLUGIN_DIR."/wp-fastest-cache-premium/pro/library/delay-js.php")){ if(!$this->is_amp($content)){ include_once WPFC_WP_PLUGIN_DIR."/wp-fastest-cache-premium/pro/library/delay-js.php"; $delay = new WpFastestCacheDelayJS($content); $content = $delay->action(); } } } if(isset($this->options->wpFastestCacheRenderBlocking) && method_exists("WpFastestCachePowerfulHtml", "render_blocking")){ if(class_exists("WpFastestCachePowerfulHtml")){ if(!$this->is_amp($content)){ $powerful_html = new WpFastestCachePowerfulHtml(); if(isset($this->options->wpFastestCacheRenderBlockingCss)){ $content = $powerful_html->render_blocking($content, true); }else{ $content = $powerful_html->render_blocking($content); } } } } if(isset($this->options->wpFastestCacheCombineCss)){ require_once "css-utilities.php"; $css = new CssUtilities($this, $content); $content = $css->combineCss(); unset($css); }else if(isset($this->options->wpFastestCacheMinifyCss)){ require_once "css-utilities.php"; $css = new CssUtilities($this, $content); $content = $css->minifyCss(); unset($css); } if(isset($this->options->wpFastestCacheCombineJs) || isset($this->options->wpFastestCacheMinifyJs) || isset($this->options->wpFastestCacheCombineJsPowerFul)){ require_once "js-utilities.php"; } if(isset($this->options->wpFastestCacheCombineJs)){ $head_new = $this->get_header($content); if($head_new){ if(isset($this->options->wpFastestCacheMinifyJs) && $this->options->wpFastestCacheMinifyJs){ $js = new JsUtilities($this, $head_new, true); }else{ $js = new JsUtilities($this, $head_new); } $tmp_head = $js->combine_js(); $content = str_replace($head_new, $tmp_head, $content); unset($r); unset($js); unset($tmp_head); unset($head_new); } } if(class_exists("WpFastestCachePowerfulHtml")){ if(!isset($powerful_html)){ $powerful_html = new WpFastestCachePowerfulHtml(); } $powerful_html->set_html($content); if(isset($this->options->wpFastestCacheCombineJsPowerFul) && method_exists("WpFastestCachePowerfulHtml", "combine_js_in_footer")){ if(isset($this->options->wpFastestCacheMinifyJs) && $this->options->wpFastestCacheMinifyJs){ $content = $powerful_html->combine_js_in_footer($this, true); }else{ $content = $powerful_html->combine_js_in_footer($this); } } if(isset($this->options->wpFastestCacheRemoveComments)){ $content = $powerful_html->remove_head_comments(); } if(isset($this->options->wpFastestCacheMinifyHtmlPowerFul)){ $content = $powerful_html->minify_html(); } if(isset($this->options->wpFastestCacheMinifyJs) && method_exists("WpFastestCachePowerfulHtml", "minify_js_in_body")){ $content = $powerful_html->minify_js_in_body($this, $this->exclude_rules); } } if($this->err){ return $buffer.""; }else{ $content = $this->cacheDate($content); $content = $this->minify($content); $content = str_replace("", "", $content); if(isset($this->options->wpFastestCacheLazyLoad) && class_exists("WpFastestCachePowerfulHtml")){ $execute_lazy_load = true; // to disable Lazy Load if the page is amp if($this->is_amp($content)){ $execute_lazy_load = false; } // to disable for Ajax Load More on the pages if($this->isPluginActive('ajax-load-more/ajax-load-more.php') && preg_match("/\/page\/\d+\//", $_SERVER["REQUEST_URI"])){ $execute_lazy_load = false; } if($execute_lazy_load){ if(!class_exists("WpFastestCacheLazyLoad")){ include_once $this->get_premium_path("lazy-load.php"); } $content = $powerful_html->lazy_load($content); if(method_exists("WpFastestCacheLazyLoad",'get_js_source_new')){ $lazy_load_js = WpFastestCacheLazyLoad::get_js_source_new(); }else if(method_exists("WpFastestCacheLazyLoad",'get_js_source')){ $lazy_load_js = WpFastestCacheLazyLoad::get_js_source(); } $content = preg_replace("/\s*<\/head\s*>/i", $lazy_load_js."", $content, 1); } } $content = $this->cdn_rewrite($content); $content = $this->fix_pre_tag($content, $buffer); if(preg_match("/]+href\s*\=\s*[\'\"][^\"\']+\.\.[\"\'][^\>]+>/", $content)){ /* to check that resources have been successfully optimized */ return $buffer.""; } if($this->cacheFilePath){ if($this->is_html()){ $tmp_content = (string) apply_filters('wpfc_buffer_callback_filter', $content, "cache", $this->cacheFilePath); if(!$tmp_content){ return $content; }else{ $content = $tmp_content; } $this->createFolder($this->cacheFilePath, $content); do_action('wpfc_is_cacheable_action'); }else if($this->is_xml()){ if(preg_match("/<\/link>/", $buffer)){ if(preg_match("/\/feed$/", $_SERVER["REQUEST_URI"])){ return $buffer.time(); } } $this->createFolder($this->cacheFilePath, $buffer, "xml"); do_action('wpfc_is_cacheable_action'); return $buffer; }else if($this->is_json()){ $this->createFolder($this->cacheFilePath, $buffer, "json"); do_action('wpfc_is_cacheable_action'); return $buffer; } } return $content.""; } } } public function fix_pre_tag($content, $buffer){ if(preg_match("/]*>/i", $buffer)){ preg_match_all("/]*>((?!<\/pre>).)+<\/pre>/is", $buffer, $pre_buffer); preg_match_all("/]*>((?!<\/pre>).)+<\/pre>/is", $content, $pre_content); if(isset($pre_content[0]) && isset($pre_content[0][0])){ foreach ($pre_content[0] as $key => $value){ if(isset($pre_buffer[0][$key])){ /* location ~ / { set $path /path/$1/index.html; } */ $pre_buffer[0][$key] = preg_replace('/\$(\d)/', '\\\$$1', $pre_buffer[0][$key]); /* \\\ */ $pre_buffer[0][$key] = preg_replace('/\\\\\\\\\\\/', '\\\\\\\\\\\\\\', $pre_buffer[0][$key]); /* \\ */ $pre_buffer[0][$key] = preg_replace('/\\\\\\\\/', '\\\\\\\\\\', $pre_buffer[0][$key]); /* /\ */ $pre_buffer[0][$key] = preg_replace('/\/\\\\/', '/\\\\\\', $pre_buffer[0][$key]); $content = preg_replace("/".preg_quote($value, "/")."/", $pre_buffer[0][$key], $content); } } } } return $content; } public function cdn_rewrite($content){ if($this->cdn){ $content = preg_replace_callback("/(srcset|src|href|data-vc-parallax-image|data-bg|data-bg-webp|data-fullurl|data-mobileurl|data-img-url|data-cvpsrc|data-cvpset|data-thumb|data-bg-url|data-large_image|data-lazyload|data-lazy|data-source-url|data-srcsmall|data-srclarge|data-srcfull|data-slide-img|data-lazy-original)\s{0,2}\=\s{0,2}[\'\"]([^\'\"]+)[\'\"]/i", array($this, 'cdn_replace_urls'), $content); //url() $content = preg_replace_callback("/(url)\(([^\)\>]+)\)/i", array($this, 'cdn_replace_urls'), $content); //{"concatemoji":"http:\/\/your_url.com\/wp-includes\/js\/wp-emoji-release.min.js?ver=4.7"} $content = preg_replace_callback("/\{\"concatemoji\"\:\"[^\"]+\"\}/i", array($this, 'cdn_replace_urls'), $content); // $content = preg_replace_callback("/[\"\']([^\'\"]+)[\"\']\s*\:\s*[\"\']https?\:\\\\\/\\\\\/[^\"\']+[\"\']/i", array($this, 'cdn_replace_urls'), $content); // $content = preg_replace_callback("/(jsFileLocation)\s*\:[\"\']([^\"\']+)[\"\']/i", array($this, 'cdn_replace_urls'), $content); //
//
$content = preg_replace_callback("/(data-product_variations|data-siteorigin-parallax)\=[\"\'][^\"\']+[\"\']/i", array($this, 'cdn_replace_urls'), $content); // $content = preg_replace_callback("/]+(data)\s{0,2}\=[\'\"]([^\'\"]+)[\'\"][^\>]+>/i", array($this, 'cdn_replace_urls'), $content); } return $content; } public function get_header($content){ $head_first_index = strpos($content, ""); return substr($content, $head_first_index, ($head_last_index-$head_first_index + 1)); } public function minify($content){ $content = preg_replace("/<\/html>\s+/", "", $content); $content = str_replace("\r", "", $content); return isset($this->options->wpFastestCacheMinifyHtml) ? preg_replace("/^\s+/m", "", ((string) $content)) : $content; } public function checkHtml($buffer){ if(!$this->is_html()){ return false; } if(preg_match('/<\s*html[^\>]*>/si', $buffer) && preg_match('/<\s*body[^\>]*>/si', $buffer) && preg_match('/<\/body\s*>/si', $buffer)){ return false; } // if(strlen($buffer) > 10){ // return false; // } return true; } public function cacheDate($buffer){ $prefix = ($this->isMobile() && class_exists("WpFcMobileCache") && isset($this->options->wpFastestCacheMobile) && isset($this->options->wpFastestCacheMobileTheme)) ? "Mobile: " : ""; $comment = ""; if(apply_filters( 'wpfc_remove_footer_comment', false )){ $comment = ""; } if(defined('WPFC_REMOVE_FOOTER_COMMENT') && WPFC_REMOVE_FOOTER_COMMENT){ $comment = ""; } return $buffer.$comment; } public function creationTime(){ $time = microtime(true) - $this->startTime; $time = number_format($time, 3); return $time; } public function isCommenter(){ $commenter = wp_get_current_commenter(); return isset($commenter["comment_author_email"]) && $commenter["comment_author_email"] ? true : false; } public function isPasswordProtected($buffer){ if(preg_match("/action\=[\'\"].+postpass.*[\'\"]/", $buffer)){ return true; } foreach($_COOKIE as $key => $value){ if(preg_match("/wp\-postpass\_/", $key)){ return true; } } return false; } public function create_name($list){ $arr = is_array($list) ? $list : array(array("href" => $list)); $name = ""; foreach ($arr as $tag_key => $tag_value){ $tmp = preg_replace("/(\.css|\.js)\?.*/", "$1", $tag_value["href"]); //to remove version number $name = $name.$tmp; } return base_convert(crc32($name), 20, 36); } public function createFolder($cachFilePath, $buffer, $extension = "html", $prefix = false){ $create = false; $file_name = "index."; $update_db_statistic = true; if($buffer && strlen($buffer) > 100 && preg_match("/html|xml|json/i", $extension)){ if(!preg_match("/^\<\!\-\-\sMobile\:\sWP\sFastest\sCache/i", $buffer)){ if(!preg_match("/^\<\!\-\-\sWP\sFastest\sCache/i", $buffer)){ $create = true; } } if($this->preload_user_agent){ if(file_exists($cachFilePath."/"."index.".$extension)){ $update_db_statistic = false; @unlink($cachFilePath."/"."index.".$extension); } } } if(($extension == "svg" || $extension == "woff" || $extension == "css" || $extension == "js") && $buffer && strlen($buffer) > 5){ $create = true; $file_name = base_convert(substr(time(), -6), 20, 36)."."; $buffer = trim($buffer); if($extension == "js"){ if(substr($buffer, -1) != ";"){ $buffer .= ";"; } } } if (is_user_logged_in() || $this->isCommenter()){ $create = false; } if($create){ if(!is_dir($cachFilePath)){ if(is_writable($this->getWpContentDir()) || ((is_dir($this->getWpContentDir("/cache"))) && (is_writable($this->getWpContentDir("/cache"))))){ if (@mkdir($cachFilePath, 0755, true)){ if($extension == "html"){ if(!file_exists($this->getWpContentDir("/cache/index.html"))){ @file_put_contents($this->getWpContentDir("/cache/index.html"), ""); } }else{ if(!file_exists($this->getWpContentDir("/cache/wpfc-minified/index.html"))){ if(!is_dir($this->getWpContentDir("/cache/wpfc-minified/"))){ @mkdir($this->getWpContentDir("/cache/wpfc-minified/"), 0755, true); } if(is_dir($this->getWpContentDir("/cache/wpfc-minified/"))){ @file_put_contents($this->getWpContentDir("/cache/wpfc-minified/index.html"), ""); } } } } } } if(is_dir($cachFilePath)){ if(!file_exists($cachFilePath."/".$file_name.$extension)){ if($extension != "html"){ $buffer = (string) apply_filters('wpfc_buffer_callback_filter', $buffer, $extension, $cachFilePath); } file_put_contents($cachFilePath."/".$file_name.$extension, $buffer); if(class_exists("WpFastestCacheStatics")){ if($update_db_statistic && !preg_match("/After\sCache\sTimeout/i", $_SERVER['HTTP_USER_AGENT'])){ if(preg_match("/wpfc\-mobile\-cache/", $cachFilePath)){ $extension = "mobile"; } $cache_statics = new WpFastestCacheStatics($extension, strlen($buffer)); $cache_statics->update_db(); } } } } }elseif($extension == "html"){ $this->err = "Buffer is empty so the cache cannot be created"; } } public function is_amp($content){ global $redux_builder_amp; $action = false; $request_uri = trim($_SERVER["REQUEST_URI"], "/"); if(preg_match("/^amp/", $request_uri)){ $action = true; } if(preg_match("/amp$/", $request_uri)){ $action = true; } if(preg_match("/\/amp\//", $request_uri)){ $action = true; } if(preg_match("/\?amp\=1$/", $request_uri)){ $action = true; } if(preg_match("/web-stories\//", $request_uri)){ // https://wordpress.org/plugins/web-stories/ $action = true; } if(isset($redux_builder_amp) && isset($redux_builder_amp['ampforwp-amp-takeover']) && ($redux_builder_amp['ampforwp-amp-takeover'] == true)){ $action = true; } if($action){ if(preg_match("/]+amp[^\>]*>/i", $content)){ return true; } if(preg_match("/]+\⚡[^\>]*>/i", $content)){ return true; } } return false; } public function isMobile(){ foreach ($this->get_mobile_browsers() as $value) { if(preg_match("/".$value."/i", $_SERVER['HTTP_USER_AGENT'])){ return true; } } foreach ($this->get_operating_systems() as $key => $value) { if(preg_match("/".$value."/i", $_SERVER['HTTP_USER_AGENT'])){ return true; } } if(isset($_SERVER['HTTP_CLOUDFRONT_IS_MOBILE_VIEWER']) && "true" === $_SERVER['HTTP_CLOUDFRONT_IS_MOBILE_VIEWER']){ $is_mobile = true; } if(isset($_SERVER['HTTP_CLOUDFRONT_IS_TABLET_VIEWER']) && "true" === $_SERVER['HTTP_CLOUDFRONT_IS_TABLET_VIEWER']){ $is_mobile = true; } } public function isWpLogin($buffer){ // if(preg_match("/]+loginform[^\>]+>((?:(?!<\/form).)+)user_login((?:(?!<\/form).)+)user_pass((?:(?!<\/form).)+)<\/form>/si", $buffer)){ // return true; // } if($GLOBALS["pagenow"] == "wp-login.php"){ return true; } return false; } public function hasContactForm7WithCaptcha($buffer){ if(is_single() || is_page()){ if(preg_match("/]+_wpcf7_captcha[^\>]+>/i", $buffer)){ return true; } } return false; } public function is_wptouch_smartphone(){ // https://plugins.svn.wordpress.org/wptouch/tags/4.0.4/core/mobile-user-agents.php // wptouch: ipad is accepted as a desktop so no need to create cache if user agent is ipad // https://wordpress.org/support/topic/plugin-wptouch-wptouch-wont-display-mobile-version-on-ipad?replies=12 if(preg_match("/ipad/i", $_SERVER['HTTP_USER_AGENT'])){ return false; } $wptouch_smartphone_list = array(); $wptouch_smartphone_list[] = array( 'iPhone' ); // iPhone $wptouch_smartphone_list[] = array( 'Android', 'Mobile' ); // Android devices $wptouch_smartphone_list[] = array( 'BB', 'Mobile Safari' ); // BB10 devices $wptouch_smartphone_list[] = array( 'BlackBerry', 'Mobile Safari' ); // BB 6, 7 devices $wptouch_smartphone_list[] = array( 'Firefox', 'Mobile' ); // Firefox OS devices $wptouch_smartphone_list[] = array( 'IEMobile/11', 'Touch' ); // Windows IE 11 touch devices $wptouch_smartphone_list[] = array( 'IEMobile/10', 'Touch' ); // Windows IE 10 touch devices $wptouch_smartphone_list[] = array( 'IEMobile/9.0' ); // Windows Phone OS 9 $wptouch_smartphone_list[] = array( 'IEMobile/8.0' ); // Windows Phone OS 8 $wptouch_smartphone_list[] = array( 'IEMobile/7.0' ); // Windows Phone OS 7 $wptouch_smartphone_list[] = array( 'OPiOS', 'Mobile' ); // Opera Mini iOS $wptouch_smartphone_list[] = array( 'Coast', 'Mobile' ); // Opera Coast iOS foreach ($wptouch_smartphone_list as $key => $value) { if(isset($value[0]) && isset($value[1])){ if(preg_match("/".preg_quote($value[0], "/")."/i", $_SERVER['HTTP_USER_AGENT'])){ if(preg_match("/".preg_quote($value[1], "/")."/i", $_SERVER['HTTP_USER_AGENT'])){ return true; } } }else if(isset($value[0])){ if(preg_match("/".preg_quote($value[0], "/")."/i", $_SERVER['HTTP_USER_AGENT'])){ return true; } } } return false; } public function is_anymobilethemeswitcher_mobile(){ // https://plugins.svn.wordpress.org/any-mobile-theme-switcher/tags/1.9/any-mobile-theme-switcher.php $user_agent = $_SERVER['HTTP_USER_AGENT']; switch(true){ case (preg_match('/ipad/i',$user_agent)); return true; break; case (preg_match('/ipod/i',$user_agent)||preg_match('/iphone/i',$user_agent)); return true; break; case (preg_match('/android/i',$user_agent) && preg_match('/mobile/i',$user_agent)); return true; break; case (preg_match('/opera mini/i',$user_agent)); return true; break; case (preg_match('/blackberry/i',$user_agent)); return true; break; case (preg_match('/(pre\/|palm os|palm|hiptop|avantgo|plucker|xiino|blazer|elaine)/i',$user_agent)); return true; break; case (preg_match('/(iris|3g_t|windows ce|opera mobi|windows ce; smartphone;|windows ce; iemobile)/i',$user_agent)); return true; break; case (preg_match('/(mini 9.5|vx1000|lge |m800|e860|u940|ux840|compal|wireless| mobi|ahong|lg380|lgku|lgu900|lg210|lg47|lg920|lg840|lg370|sam-r|mg50|s55|g83|t66|vx400|mk99|d615|d763|el370|sl900|mp500|samu3|samu4|vx10|xda_|samu5|samu6|samu7|samu9|a615|b832|m881|s920|n210|s700|c-810|_h797|mob-x|sk16d|848b|mowser|s580|r800|471x|v120|rim8|c500foma:|160x|x160|480x|x640|t503|w839|i250|sprint|w398samr810|m5252|c7100|mt126|x225|s5330|s820|htil-g1|fly v71|s302|-x113|novarra|k610i|-three|8325rc|8352rc|sanyo|vx54|c888|nx250|n120|mtk |c5588|s710|t880|c5005|i;458x|p404i|s210|c5100|teleca|s940|c500|s590|foma|samsu|vx8|vx9|a1000|_mms|myx|a700|gu1100|bc831|e300|ems100|me701|me702m-three|sd588|s800|8325rc|ac831|mw200|brew |d88|htc\/|htc_touch|355x|m50|km100|d736|p-9521|telco|sl74|ktouch|m4u\/|me702|8325rc|kddi|phone|lg |sonyericsson|samsung|240x|x320|vx10|nokia|sony cmd|motorola|up.browser|up.link|mmp|symbian|smartphone|midp|wap|vodafone|o2|pocket|kindle|mobile|psp|treo)/i',$user_agent)); return true; break; } return false; } } ?>