1297 lines
36 KiB
PHP
1297 lines
36 KiB
PHP
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<?php
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/**
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* The optimize class.
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*
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* @since 1.2.2
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*/
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namespace LiteSpeed;
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defined('WPINC') || exit();
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class Optimize extends Base
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{
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const LIB_FILE_CSS_ASYNC = 'assets/js/css_async.min.js';
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const LIB_FILE_WEBFONTLOADER = 'assets/js/webfontloader.min.js';
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const LIB_FILE_JS_DELAY = 'assets/js/js_delay.min.js';
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const ITEM_TIMESTAMP_PURGE_CSS = 'timestamp_purge_css';
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private $content;
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private $content_ori;
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private $cfg_css_min;
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private $cfg_css_comb;
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private $cfg_js_min;
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private $cfg_js_comb;
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private $cfg_css_async;
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private $cfg_js_delay_inc = array();
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private $cfg_js_defer;
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private $cfg_js_defer_exc = false;
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private $cfg_ggfonts_async;
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private $_conf_css_font_display;
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private $cfg_ggfonts_rm;
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private $dns_prefetch;
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private $dns_preconnect;
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private $_ggfonts_urls = array();
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private $_ccss;
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private $_ucss = false;
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private $__optimizer;
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private $html_foot = ''; // The html info append to <body>
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private $html_head = ''; // The html info prepend to <body>
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private static $_var_i = 0;
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private $_var_preserve_js = array();
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private $_request_url;
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/**
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* Constructor
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* @since 4.0
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*/
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public function __construct()
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{
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Debug2::debug('[Optm] init');
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$this->__optimizer = $this->cls('Optimizer');
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}
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/**
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* Init optimizer
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*
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* @since 3.0
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* @access protected
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*/
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public function init()
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{
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$this->cfg_css_async = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_CSS_ASYNC);
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if ($this->cfg_css_async) {
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if (!$this->conf(self::O_API_KEY)) {
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Debug2::debug('[Optm] ❌ CCSS set to OFF due to missing domain key');
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$this->cfg_css_async = false;
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}
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if ((defined('LITESPEED_GUEST_OPTM') || ($this->conf(self::O_OPTM_UCSS) && $this->conf(self::O_OPTM_CSS_COMB))) && $this->conf(self::O_OPTM_UCSS_INLINE)) {
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Debug2::debug('[Optm] ❌ CCSS set to OFF due to UCSS Inline');
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$this->cfg_css_async = false;
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}
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}
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$this->cfg_js_defer = $this->conf(self::O_OPTM_JS_DEFER);
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if (defined('LITESPEED_GUEST_OPTM')) {
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$this->cfg_js_defer = 2;
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}
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if ($this->cfg_js_defer == 2) {
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add_filter(
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'litespeed_optm_cssjs',
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function ($con, $file_type) {
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if ($file_type == 'js') {
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$con = str_replace('DOMContentLoaded', 'DOMContentLiteSpeedLoaded', $con);
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// $con = str_replace( 'addEventListener("load"', 'addEventListener("litespeedLoad"', $con );
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}
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return $con;
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},
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20,
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2
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);
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}
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// To remove emoji from WP
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if ($this->conf(self::O_OPTM_EMOJI_RM)) {
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$this->_emoji_rm();
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}
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if ($this->conf(self::O_OPTM_QS_RM)) {
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add_filter('style_loader_src', array($this, 'remove_query_strings'), 999);
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add_filter('script_loader_src', array($this, 'remove_query_strings'), 999);
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}
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// GM JS exclude @since 4.1
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if (defined('LITESPEED_GUEST_OPTM')) {
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$this->cfg_js_defer_exc = apply_filters('litespeed_optm_gm_js_exc', $this->conf(self::O_OPTM_GM_JS_EXC));
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} else {
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/**
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* Exclude js from deferred setting
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* @since 1.5
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*/
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if ($this->cfg_js_defer) {
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add_filter('litespeed_optm_js_defer_exc', array($this->cls('Data'), 'load_js_defer_exc'));
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$this->cfg_js_defer_exc = apply_filters('litespeed_optm_js_defer_exc', $this->conf(self::O_OPTM_JS_DEFER_EXC));
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$this->cfg_js_delay_inc = apply_filters('litespeed_optm_js_delay_inc', $this->conf(self::O_OPTM_JS_DELAY_INC));
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}
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}
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/**
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* Add vary filter for Role Excludes
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* @since 1.6
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*/
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add_filter('litespeed_vary', array($this, 'vary_add_role_exclude'));
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/**
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* Prefetch DNS
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* @since 1.7.1
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*/
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$this->_dns_prefetch_init();
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/**
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* Preconnect
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* @since 5.6.1
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*/
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$this->_dns_preconnect_init();
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add_filter('litespeed_buffer_finalize', array($this, 'finalize'), 20);
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}
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/**
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* Exclude role from optimization filter
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*
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* @since 1.6
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* @access public
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*/
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public function vary_add_role_exclude($vary)
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{
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if ($this->cls('Conf')->in_optm_exc_roles()) {
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$vary['role_exclude_optm'] = 1;
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}
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return $vary;
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}
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/**
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* Remove emoji from WP
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*
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* @since 1.4
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* @since 2.9.8 Changed to private
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* @access private
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*/
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private function _emoji_rm()
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{
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remove_action('wp_head', 'print_emoji_detection_script', 7);
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remove_action('admin_print_scripts', 'print_emoji_detection_script');
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remove_filter('the_content_feed', 'wp_staticize_emoji');
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remove_filter('comment_text_rss', 'wp_staticize_emoji');
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/**
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* Added for better result
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* @since 1.6.2.1
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*/
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remove_action('wp_print_styles', 'print_emoji_styles');
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remove_action('admin_print_styles', 'print_emoji_styles');
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remove_filter('wp_mail', 'wp_staticize_emoji_for_email');
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}
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/**
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* Delete file-based cache folder
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*
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* @since 2.1
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* @access public
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*/
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public function rm_cache_folder($subsite_id = false)
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{
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if ($subsite_id) {
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file_exists(LITESPEED_STATIC_DIR . '/css/' . $subsite_id) && File::rrmdir(LITESPEED_STATIC_DIR . '/css/' . $subsite_id);
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file_exists(LITESPEED_STATIC_DIR . '/js/' . $subsite_id) && File::rrmdir(LITESPEED_STATIC_DIR . '/js/' . $subsite_id);
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return;
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}
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file_exists(LITESPEED_STATIC_DIR . '/css') && File::rrmdir(LITESPEED_STATIC_DIR . '/css');
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file_exists(LITESPEED_STATIC_DIR . '/js') && File::rrmdir(LITESPEED_STATIC_DIR . '/js');
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}
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/**
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* Remove QS
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*
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* @since 1.3
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* @access public
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*/
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public function remove_query_strings($src)
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{
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if (strpos($src, '_litespeed_rm_qs=0') || strpos($src, '/recaptcha')) {
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return $src;
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}
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if (!Utility::is_internal_file($src)) {
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return $src;
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}
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if (strpos($src, '.js?') !== false || strpos($src, '.css?') !== false) {
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$src = preg_replace('/\?.*/', '', $src);
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}
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return $src;
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}
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/**
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* Run optimize process
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* NOTE: As this is after cache finalized, can NOT set any cache control anymore
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*
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* @since 1.2.2
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* @access public
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* @return string The content that is after optimization
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*/
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public function finalize($content)
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{
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if (defined('LITESPEED_NO_PAGEOPTM')) {
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Debug2::debug2('[Optm] bypass: NO_PAGEOPTM const');
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return $content;
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}
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if (!defined('LITESPEED_IS_HTML')) {
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Debug2::debug('[Optm] bypass: Not frontend HTML type');
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return $content;
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}
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if (!defined('LITESPEED_GUEST_OPTM')) {
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if (!Control::is_cacheable()) {
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Debug2::debug('[Optm] bypass: Not cacheable');
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return $content;
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}
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// Check if hit URI excludes
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add_filter('litespeed_optm_uri_exc', array($this->cls('Data'), 'load_optm_uri_exc'));
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$excludes = apply_filters('litespeed_optm_uri_exc', $this->conf(self::O_OPTM_EXC));
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$result = Utility::str_hit_array($_SERVER['REQUEST_URI'], $excludes);
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if ($result) {
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Debug2::debug('[Optm] bypass: hit URI Excludes setting: ' . $result);
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return $content;
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}
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}
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Debug2::debug('[Optm] start');
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$this->content_ori = $this->content = $content;
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$this->_optimize();
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return $this->content;
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}
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/**
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* Optimize css src
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*
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* @since 1.2.2
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* @access private
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*/
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private function _optimize()
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{
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global $wp;
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$this->_request_url = home_url($wp->request);
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$this->cfg_css_min = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_CSS_MIN);
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$this->cfg_css_comb = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_CSS_COMB);
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$this->cfg_js_min = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_JS_MIN);
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$this->cfg_js_comb = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_JS_COMB);
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$this->cfg_ggfonts_rm = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_GGFONTS_RM);
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$this->cfg_ggfonts_async = !defined('LITESPEED_GUEST_OPTM') && $this->conf(self::O_OPTM_GGFONTS_ASYNC); // forced rm already
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$this->_conf_css_font_display = !defined('LITESPEED_GUEST_OPTM') && $this->conf(self::O_OPTM_CSS_FONT_DISPLAY);
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if (!$this->cls('Router')->can_optm()) {
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Debug2::debug('[Optm] bypass: admin/feed/preview');
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return;
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}
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if ($this->cfg_css_async) {
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$this->_ccss = $this->cls('CSS')->prepare_ccss();
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if (!$this->_ccss) {
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Debug2::debug('[Optm] ❌ CCSS set to OFF due to CCSS not generated yet');
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$this->cfg_css_async = false;
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} elseif (strpos($this->_ccss, '<style id="litespeed-ccss" data-error') === 0) {
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Debug2::debug('[Optm] ❌ CCSS set to OFF due to CCSS failed to generate');
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$this->cfg_css_async = false;
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}
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}
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do_action('litespeed_optm');
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|
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// Parse css from content
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$src_list = false;
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if ($this->cfg_css_min || $this->cfg_css_comb || $this->cfg_ggfonts_rm || $this->cfg_css_async || $this->cfg_ggfonts_async || $this->_conf_css_font_display) {
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add_filter('litespeed_optimize_css_excludes', array($this->cls('Data'), 'load_css_exc'));
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list($src_list, $html_list) = $this->_parse_css();
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}
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// css optimizer
|
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if ($this->cfg_css_min || $this->cfg_css_comb) {
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if ($src_list) {
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// IF combine
|
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if ($this->cfg_css_comb) {
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// Check if has inline UCSS enabled or not
|
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if ((defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_UCSS)) && $this->conf(self::O_OPTM_UCSS_INLINE)) {
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$filename = $this->cls('UCSS')->load($this->_request_url, true);
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if ($filename) {
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$filepath_prefix = $this->_build_filepath_prefix('ucss');
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$this->_ucss = File::read(LITESPEED_STATIC_DIR . $filepath_prefix . $filename);
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|
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// Drop all css
|
||
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$this->content = str_replace($html_list, '', $this->content);
|
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}
|
||
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}
|
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|
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if (!$this->_ucss) {
|
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$url = $this->_build_hash_url($src_list);
|
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if ($url) {
|
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// Handle css async load
|
||
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if ($this->cfg_css_async) {
|
||
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$this->html_head .=
|
||
|
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'<link rel="preload" data-asynced="1" data-optimized="2" as="style" onload="this.onload=null;this.rel=\'stylesheet\'" href="' . $url . '" />'; // todo: How to use " in attr wrapper "
|
||
|
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} else {
|
||
|
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$this->html_head .= '<link data-optimized="2" rel="stylesheet" href="' . $url . '" />'; // use 2 as combined
|
||
|
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}
|
||
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|
||
|
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// Move all css to top
|
||
|
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$this->content = str_replace($html_list, '', $this->content);
|
||
|
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}
|
||
|
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}
|
||
|
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}
|
||
|
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// Only minify
|
||
|
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elseif ($this->cfg_css_min) {
|
||
|
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// will handle async css load inside
|
||
|
|
$this->_src_queue_handler($src_list, $html_list);
|
||
|
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}
|
||
|
|
// Only HTTP2 push
|
||
|
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else {
|
||
|
|
foreach ($src_list as $src_info) {
|
||
|
|
if (!empty($src_info['inl'])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Handle css lazy load if not handled async loaded yet
|
||
|
|
if ($this->cfg_css_async && !$this->cfg_css_min && !$this->cfg_css_comb) {
|
||
|
|
// async html
|
||
|
|
$html_list_async = $this->_async_css_list($html_list, $src_list);
|
||
|
|
|
||
|
|
// Replace async css
|
||
|
|
$this->content = str_replace($html_list, $html_list_async, $this->content);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Parse js from buffer as needed
|
||
|
|
$src_list = false;
|
||
|
|
if ($this->cfg_js_min || $this->cfg_js_comb || $this->cfg_js_defer || $this->cfg_js_delay_inc) {
|
||
|
|
add_filter('litespeed_optimize_js_excludes', array($this->cls('Data'), 'load_js_exc'));
|
||
|
|
list($src_list, $html_list) = $this->_parse_js();
|
||
|
|
}
|
||
|
|
|
||
|
|
// js optimizer
|
||
|
|
if ($src_list) {
|
||
|
|
// IF combine
|
||
|
|
if ($this->cfg_js_comb) {
|
||
|
|
$url = $this->_build_hash_url($src_list, 'js');
|
||
|
|
if ($url) {
|
||
|
|
$this->html_foot .= $this->_build_js_tag($url);
|
||
|
|
|
||
|
|
// Will move all JS to bottom combined one
|
||
|
|
$this->content = str_replace($html_list, '', $this->content);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Only minify
|
||
|
|
elseif ($this->cfg_js_min) {
|
||
|
|
// Will handle js defer inside
|
||
|
|
$this->_src_queue_handler($src_list, $html_list, 'js');
|
||
|
|
}
|
||
|
|
// Only HTTP2 push and Defer
|
||
|
|
else {
|
||
|
|
foreach ($src_list as $k => $src_info) {
|
||
|
|
// Inline JS
|
||
|
|
if (!empty($src_info['inl'])) {
|
||
|
|
if ($this->cfg_js_defer) {
|
||
|
|
$attrs = !empty($src_info['attrs']) ? $src_info['attrs'] : '';
|
||
|
|
$deferred = $this->_js_inline_defer($src_info['src'], $attrs);
|
||
|
|
if ($deferred) {
|
||
|
|
$this->content = str_replace($html_list[$k], $deferred, $this->content);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// JS files
|
||
|
|
else {
|
||
|
|
if ($this->cfg_js_defer) {
|
||
|
|
$deferred = $this->_js_defer($html_list[$k], $src_info['src']);
|
||
|
|
if ($deferred) {
|
||
|
|
$this->content = str_replace($html_list[$k], $deferred, $this->content);
|
||
|
|
}
|
||
|
|
} elseif ($this->cfg_js_delay_inc) {
|
||
|
|
$deferred = $this->_js_delay($html_list[$k], $src_info['src']);
|
||
|
|
if ($deferred) {
|
||
|
|
$this->content = str_replace($html_list[$k], $deferred, $this->content);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Append JS inline var for preserved ESI
|
||
|
|
// Shouldn't give any optm (defer/delay) @since 4.4
|
||
|
|
if ($this->_var_preserve_js) {
|
||
|
|
$this->html_head .= '<script>var ' . implode(',', $this->_var_preserve_js) . ';</script>';
|
||
|
|
Debug2::debug2('[Optm] Inline JS defer vars', $this->_var_preserve_js);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Append async compatibility lib to head
|
||
|
|
if ($this->cfg_css_async) {
|
||
|
|
// Inline css async lib
|
||
|
|
if ($this->conf(self::O_OPTM_CSS_ASYNC_INLINE)) {
|
||
|
|
$this->html_head .= $this->_build_js_inline(File::read(LSCWP_DIR . self::LIB_FILE_CSS_ASYNC), true);
|
||
|
|
} else {
|
||
|
|
$css_async_lib_url = LSWCP_PLUGIN_URL . self::LIB_FILE_CSS_ASYNC;
|
||
|
|
$this->html_head .= $this->_build_js_tag($css_async_lib_url, 'litespeed-css-async-lib'); // Don't exclude it from defer for now
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle google fonts async
|
||
|
|
* This will result in a JS snippet in head, so need to put it in the end to avoid being replaced by JS parser
|
||
|
|
*/
|
||
|
|
$this->_async_ggfonts();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Font display optm
|
||
|
|
* @since 3.0
|
||
|
|
*/
|
||
|
|
$this->_font_optm();
|
||
|
|
|
||
|
|
// Inject JS Delay lib
|
||
|
|
$this->_maybe_js_delay();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* HTML Lazyload
|
||
|
|
*/
|
||
|
|
if ($this->conf(self::O_OPTM_HTML_LAZY)) {
|
||
|
|
$this->html_head = $this->cls('CSS')->prepare_html_lazy() . $this->html_head;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Maybe prepend inline UCSS
|
||
|
|
if ($this->_ucss) {
|
||
|
|
$this->html_head = '<style id="litespeed-ucss">' . $this->_ucss . '</style>' . $this->html_head;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check if there is any critical css rules setting
|
||
|
|
if ($this->cfg_css_async && $this->_ccss) {
|
||
|
|
$this->html_head = $this->_ccss . $this->html_head;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Replace html head part
|
||
|
|
$this->html_head = apply_filters('litespeed_optm_html_head', $this->html_head);
|
||
|
|
if ($this->html_head) {
|
||
|
|
if (apply_filters('litespeed_optm_html_after_head', false)) {
|
||
|
|
$this->content = str_replace('</head>', $this->html_head . '</head>', $this->content);
|
||
|
|
} else {
|
||
|
|
// Put header content to be after charset
|
||
|
|
if (strpos($this->content, '<meta charset') !== false) {
|
||
|
|
$this->content = preg_replace('#<meta charset([^>]*)>#isU', '<meta charset$1>' . $this->html_head, $this->content, 1);
|
||
|
|
} else {
|
||
|
|
$this->content = preg_replace('#<head([^>]*)>#isU', '<head$1>' . $this->html_head, $this->content, 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Replace html foot part
|
||
|
|
$this->html_foot = apply_filters('litespeed_optm_html_foot', $this->html_foot);
|
||
|
|
if ($this->html_foot) {
|
||
|
|
$this->content = str_replace('</body>', $this->html_foot . '</body>', $this->content);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Drop noscript if enabled
|
||
|
|
if ($this->conf(self::O_OPTM_NOSCRIPT_RM)) {
|
||
|
|
// $this->content = preg_replace( '#<noscript>.*</noscript>#isU', '', $this->content );
|
||
|
|
}
|
||
|
|
|
||
|
|
// HTML minify
|
||
|
|
if (defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_HTML_MIN)) {
|
||
|
|
$this->content = $this->__optimizer->html_min($this->content);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Build a full JS tag
|
||
|
|
*
|
||
|
|
* @since 4.0
|
||
|
|
*/
|
||
|
|
private function _build_js_tag($src)
|
||
|
|
{
|
||
|
|
if ($this->cfg_js_defer === 2 || Utility::str_hit_array($src, $this->cfg_js_delay_inc)) {
|
||
|
|
return '<script data-optimized="1" type="litespeed/javascript" data-src="' . $src . '"></script>';
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->cfg_js_defer) {
|
||
|
|
return '<script data-optimized="1" src="' . $src . '" defer></script>';
|
||
|
|
}
|
||
|
|
|
||
|
|
return '<script data-optimized="1" src="' . $src . '"></script>';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Build a full inline JS snippet
|
||
|
|
*
|
||
|
|
* @since 4.0
|
||
|
|
*/
|
||
|
|
private function _build_js_inline($script, $minified = false)
|
||
|
|
{
|
||
|
|
if ($this->cfg_js_defer) {
|
||
|
|
$deferred = $this->_js_inline_defer($script, false, $minified);
|
||
|
|
if ($deferred) {
|
||
|
|
return $deferred;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return '<script>' . $script . '</script>';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Load JS delay lib
|
||
|
|
*
|
||
|
|
* @since 4.0
|
||
|
|
*/
|
||
|
|
private function _maybe_js_delay()
|
||
|
|
{
|
||
|
|
if ($this->cfg_js_defer !== 2 && !$this->cfg_js_delay_inc) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->html_foot .= '<script>' . File::read(LSCWP_DIR . self::LIB_FILE_JS_DELAY) . '</script>';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Google font async
|
||
|
|
*
|
||
|
|
* @since 2.7.3
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
private function _async_ggfonts()
|
||
|
|
{
|
||
|
|
if (!$this->cfg_ggfonts_async || !$this->_ggfonts_urls) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
Debug2::debug2('[Optm] google fonts async found: ', $this->_ggfonts_urls);
|
||
|
|
|
||
|
|
$html = '<link rel="preconnect" href="https://fonts.gstatic.com/" crossorigin />';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Append fonts
|
||
|
|
*
|
||
|
|
* Could be multiple fonts
|
||
|
|
*
|
||
|
|
* <link rel='stylesheet' href='//fonts.googleapis.com/css?family=Open+Sans%3A400%2C600%2C700%2C800%2C300&ver=4.9.8' type='text/css' media='all' />
|
||
|
|
* <link rel='stylesheet' href='//fonts.googleapis.com/css?family=PT+Sans%3A400%2C700%7CPT+Sans+Narrow%3A400%7CMontserrat%3A600&subset=latin&ver=4.9.8' type='text/css' media='all' />
|
||
|
|
* -> family: PT Sans:400,700|PT Sans Narrow:400|Montserrat:600
|
||
|
|
* <link rel='stylesheet' href='https://fonts.googleapis.com/css?family=Source+Sans+Pro:400,300,300italic,400italic,600,700,900&subset=latin%2Clatin-ext' />
|
||
|
|
*/
|
||
|
|
$script = 'WebFontConfig={google:{families:[';
|
||
|
|
|
||
|
|
$families = array();
|
||
|
|
foreach ($this->_ggfonts_urls as $v) {
|
||
|
|
$qs = wp_specialchars_decode($v);
|
||
|
|
$qs = urldecode($qs);
|
||
|
|
$qs = parse_url($qs, PHP_URL_QUERY);
|
||
|
|
parse_str($qs, $qs);
|
||
|
|
|
||
|
|
if (empty($qs['family'])) {
|
||
|
|
Debug2::debug('[Optm] ERR ggfonts failed to find family: ' . $v);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$subset = empty($qs['subset']) ? '' : ':' . $qs['subset'];
|
||
|
|
|
||
|
|
foreach (array_filter(explode('|', $qs['family'])) as $v2) {
|
||
|
|
$families[] = $v2 . $subset;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$script .= '"' . implode('","', $families) . ($this->_conf_css_font_display ? '&display=swap' : '') . '"';
|
||
|
|
|
||
|
|
$script .= ']}};';
|
||
|
|
|
||
|
|
// if webfontloader lib was loaded before WebFontConfig variable, call WebFont.load
|
||
|
|
$script .= 'if ( typeof WebFont === "object" && typeof WebFont.load === "function" ) { WebFont.load( WebFontConfig ); }';
|
||
|
|
|
||
|
|
$html .= $this->_build_js_inline($script);
|
||
|
|
|
||
|
|
// https://cdnjs.cloudflare.com/ajax/libs/webfont/1.6.28/webfontloader.js
|
||
|
|
$webfont_lib_url = LSWCP_PLUGIN_URL . self::LIB_FILE_WEBFONTLOADER;
|
||
|
|
|
||
|
|
// default async, if js defer set use defer
|
||
|
|
$html .= $this->_build_js_tag($webfont_lib_url);
|
||
|
|
|
||
|
|
// Put this in the very beginning for preconnect
|
||
|
|
$this->html_head = $html . $this->html_head;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Font optm
|
||
|
|
*
|
||
|
|
* @since 3.0
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
private function _font_optm()
|
||
|
|
{
|
||
|
|
if (!$this->_conf_css_font_display || !$this->_ggfonts_urls) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
Debug2::debug2('[Optm] google fonts optm ', $this->_ggfonts_urls);
|
||
|
|
|
||
|
|
foreach ($this->_ggfonts_urls as $v) {
|
||
|
|
if (strpos($v, 'display=')) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
$this->html_head = str_replace($v, $v . '&display=swap', $this->html_head);
|
||
|
|
$this->html_foot = str_replace($v, $v . '&display=swap', $this->html_foot);
|
||
|
|
$this->content = str_replace($v, $v . '&display=swap', $this->content);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prefetch DNS
|
||
|
|
*
|
||
|
|
* @since 1.7.1
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
private function _dns_prefetch_init()
|
||
|
|
{
|
||
|
|
// Widely enable link DNS prefetch
|
||
|
|
if (defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_DNS_PREFETCH_CTRL)) {
|
||
|
|
@header('X-DNS-Prefetch-Control: on');
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->dns_prefetch = $this->conf(self::O_OPTM_DNS_PREFETCH);
|
||
|
|
if (!$this->dns_prefetch) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (function_exists('wp_resource_hints')) {
|
||
|
|
add_filter('wp_resource_hints', array($this, 'dns_prefetch_filter'), 10, 2);
|
||
|
|
} else {
|
||
|
|
add_action('litespeed_optm', array($this, 'dns_prefetch_output'));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Preconnect init
|
||
|
|
*
|
||
|
|
* @since 5.6.1
|
||
|
|
*/
|
||
|
|
private function _dns_preconnect_init()
|
||
|
|
{
|
||
|
|
$this->dns_preconnect = $this->conf(self::O_OPTM_DNS_PRECONNECT);
|
||
|
|
if ($this->dns_preconnect) {
|
||
|
|
add_action('litespeed_optm', array($this, 'dns_preconnect_output'));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prefetch DNS hook for WP
|
||
|
|
*
|
||
|
|
* @since 1.7.1
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
public function dns_prefetch_filter($urls, $relation_type)
|
||
|
|
{
|
||
|
|
if ($relation_type !== 'dns-prefetch') {
|
||
|
|
return $urls;
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($this->dns_prefetch as $v) {
|
||
|
|
if ($v) {
|
||
|
|
$urls[] = $v;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $urls;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prefetch DNS
|
||
|
|
*
|
||
|
|
* @since 1.7.1
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
public function dns_prefetch_output()
|
||
|
|
{
|
||
|
|
foreach ($this->dns_prefetch as $v) {
|
||
|
|
if ($v) {
|
||
|
|
$this->html_head .= '<link rel="dns-prefetch" href="' . $v . '" />';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Preconnect
|
||
|
|
*
|
||
|
|
* @since 5.6.1
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
public function dns_preconnect_output()
|
||
|
|
{
|
||
|
|
foreach ($this->dns_preconnect as $v) {
|
||
|
|
if ($v) {
|
||
|
|
$this->html_head .= '<link rel="preconnect" href="' . $v . '" />';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Run minify with src queue list
|
||
|
|
*
|
||
|
|
* @since 1.2.2
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
private function _src_queue_handler($src_list, $html_list, $file_type = 'css')
|
||
|
|
{
|
||
|
|
$html_list_ori = $html_list;
|
||
|
|
|
||
|
|
$can_webp = (defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_IMG_OPTM_WEBP)) && $this->cls('Media')->webp_support();
|
||
|
|
|
||
|
|
$tag = $file_type == 'css' ? 'link' : 'script';
|
||
|
|
foreach ($src_list as $key => $src_info) {
|
||
|
|
// Minify inline CSS/JS
|
||
|
|
if (!empty($src_info['inl'])) {
|
||
|
|
if ($file_type == 'css') {
|
||
|
|
$code = Optimizer::minify_css($src_info['src']);
|
||
|
|
$can_webp && ($code = $this->cls('Media')->replace_background_webp($code));
|
||
|
|
$snippet = str_replace($src_info['src'], $code, $html_list[$key]);
|
||
|
|
} else {
|
||
|
|
// Inline defer JS
|
||
|
|
if ($this->cfg_js_defer) {
|
||
|
|
$attrs = !empty($src_info['attrs']) ? $src_info['attrs'] : '';
|
||
|
|
$snippet = $this->_js_inline_defer($src_info['src'], $attrs) ?: $html_list[$key];
|
||
|
|
} else {
|
||
|
|
$code = Optimizer::minify_js($src_info['src']);
|
||
|
|
$snippet = str_replace($src_info['src'], $code, $html_list[$key]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// CSS/JS files
|
||
|
|
else {
|
||
|
|
$url = $this->_build_single_hash_url($src_info['src'], $file_type);
|
||
|
|
if ($url) {
|
||
|
|
$snippet = str_replace($src_info['src'], $url, $html_list[$key]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Handle css async load
|
||
|
|
if ($file_type == 'css' && $this->cfg_css_async) {
|
||
|
|
$snippet = $this->_async_css($snippet);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Handle js defer
|
||
|
|
if ($file_type === 'js' && $this->cfg_js_defer) {
|
||
|
|
$snippet = $this->_js_defer($snippet, $src_info['src']) ?: $snippet;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$snippet = str_replace("<$tag ", '<' . $tag . ' data-optimized="1" ', $snippet);
|
||
|
|
$html_list[$key] = $snippet;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->content = str_replace($html_list_ori, $html_list, $this->content);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Build a single URL mapped filename (This will not save in DB)
|
||
|
|
* @since 4.0
|
||
|
|
*/
|
||
|
|
private function _build_single_hash_url($src, $file_type = 'css')
|
||
|
|
{
|
||
|
|
$content = $this->__optimizer->load_file($src, $file_type);
|
||
|
|
|
||
|
|
$is_min = $this->__optimizer->is_min($src);
|
||
|
|
|
||
|
|
$content = $this->__optimizer->optm_snippet($content, $file_type, !$is_min, $src);
|
||
|
|
|
||
|
|
$filepath_prefix = $this->_build_filepath_prefix($file_type);
|
||
|
|
|
||
|
|
// Save to file
|
||
|
|
$filename = $filepath_prefix . md5($this->remove_query_strings($src)) . '.' . $file_type;
|
||
|
|
$static_file = LITESPEED_STATIC_DIR . $filename;
|
||
|
|
File::save($static_file, $content, true);
|
||
|
|
|
||
|
|
// QS is required as $src may contains version info
|
||
|
|
$qs_hash = substr(md5($src), -5);
|
||
|
|
return LITESPEED_STATIC_URL . "$filename?ver=$qs_hash";
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Generate full URL path with hash for a list of src
|
||
|
|
*
|
||
|
|
* @since 1.2.2
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
private function _build_hash_url($src_list, $file_type = 'css')
|
||
|
|
{
|
||
|
|
// $url_sensitive = $this->conf( self::O_OPTM_CSS_UNIQUE ) && $file_type == 'css'; // If need to keep unique CSS per URI
|
||
|
|
|
||
|
|
// Replace preserved ESI (before generating hash)
|
||
|
|
if ($file_type == 'js') {
|
||
|
|
foreach ($src_list as $k => $v) {
|
||
|
|
if (empty($v['inl'])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
$src_list[$k]['src'] = $this->_preserve_esi($v['src']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$minify = $file_type === 'css' ? $this->cfg_css_min : $this->cfg_js_min;
|
||
|
|
$filename_info = $this->__optimizer->serve($this->_request_url, $file_type, $minify, $src_list);
|
||
|
|
|
||
|
|
if (!$filename_info) {
|
||
|
|
return false; // Failed to generate
|
||
|
|
}
|
||
|
|
|
||
|
|
list($filename, $type) = $filename_info;
|
||
|
|
|
||
|
|
// Add cache tag in case later file deleted to avoid lscache served stale non-existed files @since 4.4.1
|
||
|
|
Tag::add(Tag::TYPE_MIN . '.' . $filename);
|
||
|
|
|
||
|
|
$qs_hash = substr(md5(self::get_option(self::ITEM_TIMESTAMP_PURGE_CSS)), -5);
|
||
|
|
// As filename is alreay realted to filecon md5, no need QS anymore
|
||
|
|
$filepath_prefix = $this->_build_filepath_prefix($type);
|
||
|
|
return LITESPEED_STATIC_URL . $filepath_prefix . $filename . '?ver=' . $qs_hash;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parse js src
|
||
|
|
*
|
||
|
|
* @since 1.2.2
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
private function _parse_js()
|
||
|
|
{
|
||
|
|
$excludes = apply_filters('litespeed_optimize_js_excludes', $this->conf(self::O_OPTM_JS_EXC));
|
||
|
|
|
||
|
|
$combine_ext_inl = $this->conf(self::O_OPTM_JS_COMB_EXT_INL);
|
||
|
|
if (!apply_filters('litespeed_optm_js_comb_ext_inl', true)) {
|
||
|
|
Debug2::debug2('[Optm] js_comb_ext_inl bypassed via litespeed_optm_js_comb_ext_inl filter');
|
||
|
|
$combine_ext_inl = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$src_list = array();
|
||
|
|
$html_list = array();
|
||
|
|
|
||
|
|
$content = preg_replace('#<!--.*-->#sU', '', $this->content);
|
||
|
|
preg_match_all('#<script([^>]*)>(.*)</script>#isU', $content, $matches, PREG_SET_ORDER);
|
||
|
|
foreach ($matches as $match) {
|
||
|
|
$attrs = empty($match[1]) ? array() : Utility::parse_attr($match[1]);
|
||
|
|
|
||
|
|
if (isset($attrs['data-optimized'])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (!empty($attrs['data-no-optimize'])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (!empty($attrs['data-cfasync']) && $attrs['data-cfasync'] === 'false') {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (!empty($attrs['type']) && $attrs['type'] != 'text/javascript') {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// to avoid multiple replacement
|
||
|
|
if (in_array($match[0], $html_list)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this_src_arr = array();
|
||
|
|
// JS files
|
||
|
|
if (!empty($attrs['src'])) {
|
||
|
|
// Exclude check
|
||
|
|
$js_excluded = Utility::str_hit_array($attrs['src'], $excludes);
|
||
|
|
$is_internal = Utility::is_internal_file($attrs['src']);
|
||
|
|
$is_file = substr($attrs['src'], 0, 5) != 'data:';
|
||
|
|
$ext_excluded = !$combine_ext_inl && !$is_internal;
|
||
|
|
if ($js_excluded || $ext_excluded || !$is_file) {
|
||
|
|
// Maybe defer
|
||
|
|
if ($this->cfg_js_defer) {
|
||
|
|
$deferred = $this->_js_defer($match[0], $attrs['src']);
|
||
|
|
if ($deferred) {
|
||
|
|
$this->content = str_replace($match[0], $deferred, $this->content);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Debug2::debug2('[Optm] _parse_js bypassed due to ' . ($js_excluded ? 'js files excluded [hit] ' . $js_excluded : 'external js'));
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strpos($attrs['src'], '/localres/') !== false) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strpos($attrs['src'], 'instant_click') !== false) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this_src_arr['src'] = $attrs['src'];
|
||
|
|
}
|
||
|
|
// Inline JS
|
||
|
|
elseif (!empty($match[2])) {
|
||
|
|
// Debug2::debug( '🌹🌹🌹 ' . $match[2] . '🌹' );
|
||
|
|
// Exclude check
|
||
|
|
$js_excluded = Utility::str_hit_array($match[2], $excludes);
|
||
|
|
if ($js_excluded || !$combine_ext_inl) {
|
||
|
|
// Maybe defer
|
||
|
|
if ($this->cfg_js_defer) {
|
||
|
|
$deferred = $this->_js_inline_defer($match[2], $match[1]);
|
||
|
|
if ($deferred) {
|
||
|
|
$this->content = str_replace($match[0], $deferred, $this->content);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
Debug2::debug2('[Optm] _parse_js bypassed due to ' . ($js_excluded ? 'js excluded [hit] ' . $js_excluded : 'inline js'));
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this_src_arr['inl'] = true;
|
||
|
|
$this_src_arr['src'] = $match[2];
|
||
|
|
if ($match[1]) {
|
||
|
|
$this_src_arr['attrs'] = $match[1];
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
// Compatibility to those who changed src to data-src already
|
||
|
|
Debug2::debug2('[Optm] No JS src or inline JS content');
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$src_list[] = $this_src_arr;
|
||
|
|
$html_list[] = $match[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
return array($src_list, $html_list);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Inline JS defer
|
||
|
|
*
|
||
|
|
* @since 3.0
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
private function _js_inline_defer($con, $attrs = false, $minified = false)
|
||
|
|
{
|
||
|
|
if (strpos($attrs, 'data-no-defer') !== false) {
|
||
|
|
Debug2::debug2('[Optm] bypass: attr api data-no-defer');
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$hit = Utility::str_hit_array($con, $this->cfg_js_defer_exc);
|
||
|
|
if ($hit) {
|
||
|
|
Debug2::debug2('[Optm] inline js defer excluded [setting] ' . $hit);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$con = trim($con);
|
||
|
|
// Minify JS first
|
||
|
|
if (!$minified) {
|
||
|
|
// && $this->cfg_js_defer !== 2
|
||
|
|
$con = Optimizer::minify_js($con);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$con) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check if the content contains ESI nonce or not
|
||
|
|
$con = $this->_preserve_esi($con);
|
||
|
|
|
||
|
|
if ($this->cfg_js_defer === 2) {
|
||
|
|
// Drop type attribute from $attrs
|
||
|
|
if (strpos($attrs, ' type=') !== false) {
|
||
|
|
$attrs = preg_replace('# type=([\'"])([^\1]+)\1#isU', '', $attrs);
|
||
|
|
}
|
||
|
|
// Replace DOMContentLoaded
|
||
|
|
$con = str_replace('DOMContentLoaded', 'DOMContentLiteSpeedLoaded', $con);
|
||
|
|
return '<script' . $attrs . ' type="litespeed/javascript">' . $con . '</script>';
|
||
|
|
// return '<script' . $attrs . ' type="litespeed/javascript" src="data:text/javascript;base64,' . base64_encode( $con ) . '"></script>';
|
||
|
|
// return '<script' . $attrs . ' type="litespeed/javascript">' . $con . '</script>';
|
||
|
|
}
|
||
|
|
|
||
|
|
return '<script' . $attrs . ' src="data:text/javascript;base64,' . base64_encode($con) . '" defer></script>';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Replace ESI to JS inline var (mainly used to avoid nonce timeout)
|
||
|
|
*
|
||
|
|
* @since 3.5.1
|
||
|
|
*/
|
||
|
|
private function _preserve_esi($con)
|
||
|
|
{
|
||
|
|
$esi_placeholder_list = $this->cls('ESI')->contain_preserve_esi($con);
|
||
|
|
if (!$esi_placeholder_list) {
|
||
|
|
return $con;
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($esi_placeholder_list as $esi_placeholder) {
|
||
|
|
$js_var = '__litespeed_var_' . self::$_var_i++ . '__';
|
||
|
|
$con = str_replace($esi_placeholder, $js_var, $con);
|
||
|
|
$this->_var_preserve_js[] = $js_var . '=' . $esi_placeholder;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $con;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parse css src and remove to-be-removed css
|
||
|
|
*
|
||
|
|
* @since 1.2.2
|
||
|
|
* @access private
|
||
|
|
* @return array All the src & related raw html list
|
||
|
|
*/
|
||
|
|
private function _parse_css()
|
||
|
|
{
|
||
|
|
$excludes = apply_filters('litespeed_optimize_css_excludes', $this->conf(self::O_OPTM_CSS_EXC));
|
||
|
|
$ucss_file_exc_inline = apply_filters('litespeed_optimize_ucss_file_exc_inline', $this->conf(self::O_OPTM_UCSS_FILE_EXC_INLINE));
|
||
|
|
|
||
|
|
$combine_ext_inl = $this->conf(self::O_OPTM_CSS_COMB_EXT_INL);
|
||
|
|
if (!apply_filters('litespeed_optm_css_comb_ext_inl', true)) {
|
||
|
|
Debug2::debug2('[Optm] css_comb_ext_inl bypassed via litespeed_optm_css_comb_ext_inl filter');
|
||
|
|
$combine_ext_inl = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$css_to_be_removed = apply_filters('litespeed_optm_css_to_be_removed', array());
|
||
|
|
|
||
|
|
$src_list = array();
|
||
|
|
$html_list = array();
|
||
|
|
|
||
|
|
// $dom = new \PHPHtmlParser\Dom;
|
||
|
|
// $dom->load( $content );return $val;
|
||
|
|
// $items = $dom->find( 'link' );
|
||
|
|
|
||
|
|
$content = preg_replace(array('#<!--.*-->#sU', '#<script([^>]*)>.*</script>#isU', '#<noscript([^>]*)>.*</noscript>#isU'), '', $this->content);
|
||
|
|
preg_match_all('#<link ([^>]+)/?>|<style([^>]*)>([^<]+)</style>#isU', $content, $matches, PREG_SET_ORDER);
|
||
|
|
|
||
|
|
foreach ($matches as $match) {
|
||
|
|
// to avoid multiple replacement
|
||
|
|
if (in_array($match[0], $html_list)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($exclude = Utility::str_hit_array($match[0], $excludes)) {
|
||
|
|
Debug2::debug2('[Optm] _parse_css bypassed exclude ' . $exclude);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this_src_arr = array();
|
||
|
|
if (strpos($match[0], '<link') === 0) {
|
||
|
|
$attrs = Utility::parse_attr($match[1]);
|
||
|
|
if (empty($attrs['rel']) || $attrs['rel'] !== 'stylesheet') {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (empty($attrs['href'])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check if need to remove this css
|
||
|
|
if (Utility::str_hit_array($attrs['href'], $css_to_be_removed)) {
|
||
|
|
Debug2::debug('[Optm] rm css snippet ' . $attrs['href']);
|
||
|
|
// Delete this css snippet from orig html
|
||
|
|
$this->content = str_replace($match[0], '', $this->content);
|
||
|
|
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check if need to inline this css file
|
||
|
|
if (Utility::str_hit_array($attrs['href'], $ucss_file_exc_inline)) {
|
||
|
|
Debug2::debug('[Optm] ucss_file_exc_inline hit ' . $attrs['href']);
|
||
|
|
// Replace this css to inline from orig html
|
||
|
|
$inline_script = '<style>' . $this->__optimizer->load_file($attrs['href']) . '</style>';
|
||
|
|
$this->content = str_replace($match[0], $inline_script, $this->content);
|
||
|
|
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check Google fonts hit
|
||
|
|
if (strpos($attrs['href'], 'fonts.googleapis.com') !== false) {
|
||
|
|
/**
|
||
|
|
* For async gg fonts, will add webfont into head, hence remove it from buffer and store the matches to use later
|
||
|
|
* @since 2.7.3
|
||
|
|
* @since 3.0 For font display optm, need to parse google fonts URL too
|
||
|
|
*/
|
||
|
|
if (!in_array($attrs['href'], $this->_ggfonts_urls)) {
|
||
|
|
$this->_ggfonts_urls[] = $attrs['href'];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->cfg_ggfonts_rm || $this->cfg_ggfonts_async) {
|
||
|
|
Debug2::debug('[Optm] rm css snippet [Google fonts] ' . $attrs['href']);
|
||
|
|
$this->content = str_replace($match[0], '', $this->content);
|
||
|
|
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($attrs['data-optimized'])) {
|
||
|
|
// $this_src_arr[ 'exc' ] = true;
|
||
|
|
continue;
|
||
|
|
} elseif (!empty($attrs['data-no-optimize'])) {
|
||
|
|
// $this_src_arr[ 'exc' ] = true;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$is_internal = Utility::is_internal_file($attrs['href']);
|
||
|
|
$ext_excluded = !$combine_ext_inl && !$is_internal;
|
||
|
|
if ($ext_excluded) {
|
||
|
|
Debug2::debug2('[Optm] Bypassed due to external link');
|
||
|
|
// Maybe defer
|
||
|
|
if ($this->cfg_css_async) {
|
||
|
|
$snippet = $this->_async_css($match[0]);
|
||
|
|
if ($snippet != $match[0]) {
|
||
|
|
$this->content = str_replace($match[0], $snippet, $this->content);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($attrs['media']) && $attrs['media'] !== 'all') {
|
||
|
|
$this_src_arr['media'] = $attrs['media'];
|
||
|
|
}
|
||
|
|
|
||
|
|
$this_src_arr['src'] = $attrs['href'];
|
||
|
|
} else {
|
||
|
|
// Inline style
|
||
|
|
if (!$combine_ext_inl) {
|
||
|
|
Debug2::debug2('[Optm] Bypassed due to inline');
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$attrs = Utility::parse_attr($match[2]);
|
||
|
|
|
||
|
|
if (!empty($attrs['data-no-optimize'])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($attrs['media']) && $attrs['media'] !== 'all') {
|
||
|
|
$this_src_arr['media'] = $attrs['media'];
|
||
|
|
}
|
||
|
|
|
||
|
|
$this_src_arr['inl'] = true;
|
||
|
|
$this_src_arr['src'] = $match[3];
|
||
|
|
}
|
||
|
|
|
||
|
|
$src_list[] = $this_src_arr;
|
||
|
|
|
||
|
|
$html_list[] = $match[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
return array($src_list, $html_list);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Replace css to async loaded css
|
||
|
|
*
|
||
|
|
* @since 1.3
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
private function _async_css_list($html_list, $src_list)
|
||
|
|
{
|
||
|
|
foreach ($html_list as $k => $ori) {
|
||
|
|
if (!empty($src_list[$k]['inl'])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$html_list[$k] = $this->_async_css($ori);
|
||
|
|
}
|
||
|
|
return $html_list;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Async CSS snippet
|
||
|
|
* @since 3.5
|
||
|
|
*/
|
||
|
|
private function _async_css($ori)
|
||
|
|
{
|
||
|
|
if (strpos($ori, 'data-asynced') !== false) {
|
||
|
|
Debug2::debug2('[Optm] bypass: attr data-asynced exist');
|
||
|
|
return $ori;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strpos($ori, 'data-no-async') !== false) {
|
||
|
|
Debug2::debug2('[Optm] bypass: attr api data-no-async');
|
||
|
|
return $ori;
|
||
|
|
}
|
||
|
|
|
||
|
|
// async replacement
|
||
|
|
$v = str_replace('stylesheet', 'preload', $ori);
|
||
|
|
$v = str_replace('<link', '<link data-asynced="1" as="style" onload="this.onload=null;this.rel=\'stylesheet\'" ', $v);
|
||
|
|
// Append to noscript content
|
||
|
|
if (!defined('LITESPEED_GUEST_OPTM') && !$this->conf(self::O_OPTM_NOSCRIPT_RM)) {
|
||
|
|
$v .= '<noscript>' . preg_replace('/ id=\'[\w-]+\' /U', ' ', $ori) . '</noscript>';
|
||
|
|
}
|
||
|
|
|
||
|
|
return $v;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Defer JS snippet
|
||
|
|
*
|
||
|
|
* @since 3.5
|
||
|
|
*/
|
||
|
|
private function _js_defer($ori, $src)
|
||
|
|
{
|
||
|
|
if (strpos($ori, ' async') !== false) {
|
||
|
|
$ori = str_replace(' async', '', $ori);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strpos($ori, 'defer') !== false) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (strpos($ori, 'data-deferred') !== false) {
|
||
|
|
Debug2::debug2('[Optm] bypass: attr data-deferred exist');
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (strpos($ori, 'data-no-defer') !== false) {
|
||
|
|
Debug2::debug2('[Optm] bypass: attr api data-no-defer');
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Exclude JS from setting
|
||
|
|
* @since 1.5
|
||
|
|
*/
|
||
|
|
if (Utility::str_hit_array($src, $this->cfg_js_defer_exc)) {
|
||
|
|
Debug2::debug('[Optm] js defer exclude ' . $src);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->cfg_js_defer === 2 || Utility::str_hit_array($src, $this->cfg_js_delay_inc)) {
|
||
|
|
if (strpos($ori, ' type=') !== false) {
|
||
|
|
$ori = preg_replace('# type=([\'"])([^\1]+)\1#isU', '', $ori);
|
||
|
|
}
|
||
|
|
return str_replace(' src=', ' type="litespeed/javascript" data-src=', $ori);
|
||
|
|
}
|
||
|
|
|
||
|
|
return str_replace('></script>', ' defer data-deferred="1"></script>', $ori);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Delay JS for included setting
|
||
|
|
*
|
||
|
|
* @since 5.6
|
||
|
|
*/
|
||
|
|
private function _js_delay($ori, $src)
|
||
|
|
{
|
||
|
|
if (strpos($ori, ' async') !== false) {
|
||
|
|
$ori = str_replace(' async', '', $ori);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strpos($ori, 'defer') !== false) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (strpos($ori, 'data-deferred') !== false) {
|
||
|
|
Debug2::debug2('[Optm] bypass: attr data-deferred exist');
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (strpos($ori, 'data-no-defer') !== false) {
|
||
|
|
Debug2::debug2('[Optm] bypass: attr api data-no-defer');
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!Utility::str_hit_array($src, $this->cfg_js_delay_inc)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strpos($ori, ' type=') !== false) {
|
||
|
|
$ori = preg_replace('# type=([\'"])([^\1]+)\1#isU', '', $ori);
|
||
|
|
}
|
||
|
|
return str_replace(' src=', ' type="litespeed/javascript" data-src=', $ori);
|
||
|
|
}
|
||
|
|
}
|