Edit File by line

<?php

[0] Fix | Delete

// phpcs:ignoreFile

[1] Fix | Delete

[2] Fix | Delete

/**

[3] Fix | Delete

* The optimize class.

[4] Fix | Delete

[5] Fix | Delete

* @since 1.2.2

[6] Fix | Delete

[7] Fix | Delete

[8] Fix | Delete

namespace LiteSpeed;

[9] Fix | Delete

[10] Fix | Delete

defined('WPINC') || exit();

[11] Fix | Delete

[12] Fix | Delete

class Optimize extends Base {

[13] Fix | Delete

const LOG_TAG = '🎢';

[14] Fix | Delete

[15] Fix | Delete

const LIB_FILE_CSS_ASYNC = 'assets/js/css_async.min.js';

[16] Fix | Delete

const LIB_FILE_WEBFONTLOADER = 'assets/js/webfontloader.min.js';

[17] Fix | Delete

const LIB_FILE_JS_DELAY = 'assets/js/js_delay.min.js';

[18] Fix | Delete

[19] Fix | Delete

const ITEM_TIMESTAMP_PURGE_CSS = 'timestamp_purge_css';

[20] Fix | Delete

[21] Fix | Delete

const DUMMY_CSS_REGEX = "#<link [ \w='\"/]*id=['\"]litespeed-cache-dummy-css['\"] href=['\"].+assets/css/litespeed-dummy\.css[?\w.=-]*['\"][ \w='\"/]*>#isU";

[22] Fix | Delete

[23] Fix | Delete

private $content;

[24] Fix | Delete

private $content_ori;

[25] Fix | Delete

[26] Fix | Delete

private $cfg_css_min;

[27] Fix | Delete

private $cfg_css_comb;

[28] Fix | Delete

private $cfg_js_min;

[29] Fix | Delete

private $cfg_js_comb;

[30] Fix | Delete

private $cfg_css_async;

[31] Fix | Delete

private $cfg_js_delay_inc = array();

[32] Fix | Delete

private $cfg_js_defer;

[33] Fix | Delete

private $cfg_js_defer_exc = false;

[34] Fix | Delete

private $cfg_ggfonts_async;

[35] Fix | Delete

private $_conf_css_font_display;

[36] Fix | Delete

private $cfg_ggfonts_rm;

[37] Fix | Delete

[38] Fix | Delete

private $dns_prefetch;

[39] Fix | Delete

private $dns_preconnect;

[40] Fix | Delete

private $_ggfonts_urls = array();

[41] Fix | Delete

private $_ccss;

[42] Fix | Delete

private $_ucss = false;

[43] Fix | Delete

[44] Fix | Delete

private $__optimizer;

[45] Fix | Delete

[46] Fix | Delete

private $html_foot = ''; // The html info append to <body>

[47] Fix | Delete

private $html_head = ''; // The html info append to <head>

[48] Fix | Delete

private $html_head_early = ''; // The html info prepend to top of head

[49] Fix | Delete

[50] Fix | Delete

private static $_var_i = 0;

[51] Fix | Delete

private $_var_preserve_js = array();

[52] Fix | Delete

private $_request_url;

[53] Fix | Delete

[54] Fix | Delete

/**

[55] Fix | Delete

* Constructor

[56] Fix | Delete

[57] Fix | Delete

* @since 4.0

[58] Fix | Delete

[59] Fix | Delete

public function __construct() {

[60] Fix | Delete

self::debug('init');

[61] Fix | Delete

$this->__optimizer = $this->cls('Optimizer');

[62] Fix | Delete

}

[63] Fix | Delete

[64] Fix | Delete

/**

[65] Fix | Delete

* Init optimizer

[66] Fix | Delete

[67] Fix | Delete

* @since 3.0

[68] Fix | Delete

* @access protected

[69] Fix | Delete

[70] Fix | Delete

public function init() {

[71] Fix | Delete

$this->cfg_css_async = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_CSS_ASYNC);

[72] Fix | Delete

if ($this->cfg_css_async) {

[73] Fix | Delete

if (!$this->cls('Cloud')->activated()) {

[74] Fix | Delete

self::debug('❌ CCSS set to OFF due to QC not activated');

[75] Fix | Delete

$this->cfg_css_async = false;

[76] Fix | Delete

}

[77] Fix | Delete

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)) {

[78] Fix | Delete

self::debug('⚠️ CCSS set to OFF due to UCSS Inline');

[79] Fix | Delete

$this->cfg_css_async = false;

[80] Fix | Delete

}

[81] Fix | Delete

}

[82] Fix | Delete

$this->cfg_js_defer = $this->conf(self::O_OPTM_JS_DEFER);

[83] Fix | Delete

if (defined('LITESPEED_GUEST_OPTM')) {

[84] Fix | Delete

$this->cfg_js_defer = 2;

[85] Fix | Delete

}

[86] Fix | Delete

if ($this->cfg_js_defer == 2) {

[87] Fix | Delete

add_filter(

[88] Fix | Delete

'litespeed_optm_cssjs',

[89] Fix | Delete

function ( $con, $file_type ) {

[90] Fix | Delete

if ($file_type == 'js') {

[91] Fix | Delete

$con = str_replace('DOMContentLoaded', 'DOMContentLiteSpeedLoaded', $con);

[92] Fix | Delete

// $con = str_replace( 'addEventListener("load"', 'addEventListener("litespeedLoad"', $con );

[93] Fix | Delete

}

[94] Fix | Delete

return $con;

[95] Fix | Delete

[96] Fix | Delete

20,

[97] Fix | Delete

[98] Fix | Delete

);

[99] Fix | Delete

}

[100] Fix | Delete

[101] Fix | Delete

// To remove emoji from WP

[102] Fix | Delete

if ($this->conf(self::O_OPTM_EMOJI_RM)) {

[103] Fix | Delete

$this->_emoji_rm();

[104] Fix | Delete

}

[105] Fix | Delete

[106] Fix | Delete

if ($this->conf(self::O_OPTM_QS_RM)) {

[107] Fix | Delete

add_filter('style_loader_src', array( $this, 'remove_query_strings' ), 999);

[108] Fix | Delete

add_filter('script_loader_src', array( $this, 'remove_query_strings' ), 999);

[109] Fix | Delete

}

[110] Fix | Delete

[111] Fix | Delete

// GM JS exclude @since 4.1

[112] Fix | Delete

if (defined('LITESPEED_GUEST_OPTM')) {

[113] Fix | Delete

$this->cfg_js_defer_exc = apply_filters('litespeed_optm_gm_js_exc', $this->conf(self::O_OPTM_GM_JS_EXC));

[114] Fix | Delete

} else {

[115] Fix | Delete

/**

[116] Fix | Delete

* Exclude js from deferred setting

[117] Fix | Delete

[118] Fix | Delete

* @since 1.5

[119] Fix | Delete

[120] Fix | Delete

if ($this->cfg_js_defer) {

[121] Fix | Delete

add_filter('litespeed_optm_js_defer_exc', array( $this->cls('Data'), 'load_js_defer_exc' ));

[122] Fix | Delete

$this->cfg_js_defer_exc = apply_filters('litespeed_optm_js_defer_exc', $this->conf(self::O_OPTM_JS_DEFER_EXC));

[123] Fix | Delete

[124] Fix | Delete

$this->cfg_js_delay_inc = apply_filters('litespeed_optm_js_delay_inc', $this->conf(self::O_OPTM_JS_DELAY_INC));

[125] Fix | Delete

}

[126] Fix | Delete

}

[127] Fix | Delete

[128] Fix | Delete

// Add vary filter for Role Excludes @since 1.6

[129] Fix | Delete

add_filter('litespeed_vary', array( $this, 'vary_add_role_exclude' ));

[130] Fix | Delete

[131] Fix | Delete

// DNS optm (Prefetch/Preconnect) @since 7.3

[132] Fix | Delete

$this->_dns_optm_init();

[133] Fix | Delete

[134] Fix | Delete

add_filter('litespeed_buffer_finalize', array( $this, 'finalize' ), 20);

[135] Fix | Delete

[136] Fix | Delete

// Inject a dummy CSS file to control final optimized data location in <head>

[137] Fix | Delete

wp_enqueue_style(Core::PLUGIN_NAME . '-dummy', LSWCP_PLUGIN_URL . 'assets/css/litespeed-dummy.css');

[138] Fix | Delete

}

[139] Fix | Delete

[140] Fix | Delete

/**

[141] Fix | Delete

* Exclude role from optimization filter

[142] Fix | Delete

[143] Fix | Delete

* @since 1.6

[144] Fix | Delete

* @access public

[145] Fix | Delete

[146] Fix | Delete

public function vary_add_role_exclude( $vary ) {

[147] Fix | Delete

if ($this->cls('Conf')->in_optm_exc_roles()) {

[148] Fix | Delete

$vary['role_exclude_optm'] = 1;

[149] Fix | Delete

}

[150] Fix | Delete

[151] Fix | Delete

return $vary;

[152] Fix | Delete

}

[153] Fix | Delete

[154] Fix | Delete

/**

[155] Fix | Delete

* Remove emoji from WP

[156] Fix | Delete

[157] Fix | Delete

* @since 1.4

[158] Fix | Delete

* @since 2.9.8 Changed to private

[159] Fix | Delete

* @access private

[160] Fix | Delete

[161] Fix | Delete

private function _emoji_rm() {

[162] Fix | Delete

remove_action('wp_head', 'print_emoji_detection_script', 7);

[163] Fix | Delete

remove_action('admin_print_scripts', 'print_emoji_detection_script');

[164] Fix | Delete

remove_filter('the_content_feed', 'wp_staticize_emoji');

[165] Fix | Delete

remove_filter('comment_text_rss', 'wp_staticize_emoji');

[166] Fix | Delete

/**

[167] Fix | Delete

* Added for better result

[168] Fix | Delete

[169] Fix | Delete

* @since 1.6.2.1

[170] Fix | Delete

[171] Fix | Delete

remove_action('wp_print_styles', 'print_emoji_styles');

[172] Fix | Delete

remove_action('admin_print_styles', 'print_emoji_styles');

[173] Fix | Delete

remove_filter('wp_mail', 'wp_staticize_emoji_for_email');

[174] Fix | Delete

}

[175] Fix | Delete

[176] Fix | Delete

/**

[177] Fix | Delete

* Delete file-based cache folder

[178] Fix | Delete

[179] Fix | Delete

* @since 2.1

[180] Fix | Delete

* @access public

[181] Fix | Delete

[182] Fix | Delete

public function rm_cache_folder( $subsite_id = false ) {

[183] Fix | Delete

if ($subsite_id) {

[184] Fix | Delete

file_exists(LITESPEED_STATIC_DIR . '/css/' . $subsite_id) && File::rrmdir(LITESPEED_STATIC_DIR . '/css/' . $subsite_id);

[185] Fix | Delete

file_exists(LITESPEED_STATIC_DIR . '/js/' . $subsite_id) && File::rrmdir(LITESPEED_STATIC_DIR . '/js/' . $subsite_id);

[186] Fix | Delete

return;

[187] Fix | Delete

}

[188] Fix | Delete

[189] Fix | Delete

file_exists(LITESPEED_STATIC_DIR . '/css') && File::rrmdir(LITESPEED_STATIC_DIR . '/css');

[190] Fix | Delete

file_exists(LITESPEED_STATIC_DIR . '/js') && File::rrmdir(LITESPEED_STATIC_DIR . '/js');

[191] Fix | Delete

}

[192] Fix | Delete

[193] Fix | Delete

/**

[194] Fix | Delete

* Remove QS

[195] Fix | Delete

[196] Fix | Delete

* @since 1.3

[197] Fix | Delete

* @access public

[198] Fix | Delete

[199] Fix | Delete

public function remove_query_strings( $src ) {

[200] Fix | Delete

if (strpos($src, '_litespeed_rm_qs=0') || strpos($src, '/recaptcha')) {

[201] Fix | Delete

return $src;

[202] Fix | Delete

}

[203] Fix | Delete

[204] Fix | Delete

if (!Utility::is_internal_file($src)) {

[205] Fix | Delete

return $src;

[206] Fix | Delete

}

[207] Fix | Delete

[208] Fix | Delete

if (strpos($src, '.js?') !== false || strpos($src, '.css?') !== false) {

[209] Fix | Delete

$src = preg_replace('/\?.*/', '', $src);

[210] Fix | Delete

}

[211] Fix | Delete

[212] Fix | Delete

return $src;

[213] Fix | Delete

}

[214] Fix | Delete

[215] Fix | Delete

/**

[216] Fix | Delete

* Run optimize process

[217] Fix | Delete

* NOTE: As this is after cache finalized, can NOT set any cache control anymore

[218] Fix | Delete

[219] Fix | Delete

* @since 1.2.2

[220] Fix | Delete

* @access public

[221] Fix | Delete

* @return string The content that is after optimization

[222] Fix | Delete

[223] Fix | Delete

public function finalize( $content ) {

[224] Fix | Delete

$content = $this->_finalize($content);

[225] Fix | Delete

// Fallback to replace dummy css placeholder

[226] Fix | Delete

if (false !== preg_match(self::DUMMY_CSS_REGEX, $content)) {

[227] Fix | Delete

self::debug('Fallback to drop dummy CSS');

[228] Fix | Delete

$content = preg_replace( self::DUMMY_CSS_REGEX, '', $content );

[229] Fix | Delete

}

[230] Fix | Delete

return $content;

[231] Fix | Delete

}

[232] Fix | Delete

private function _finalize( $content ) {

[233] Fix | Delete

if (defined('LITESPEED_NO_PAGEOPTM')) {

[234] Fix | Delete

self::debug2('bypass: NO_PAGEOPTM const');

[235] Fix | Delete

return $content;

[236] Fix | Delete

}

[237] Fix | Delete

[238] Fix | Delete

if (!defined('LITESPEED_IS_HTML')) {

[239] Fix | Delete

self::debug('bypass: Not frontend HTML type');

[240] Fix | Delete

return $content;

[241] Fix | Delete

}

[242] Fix | Delete

[243] Fix | Delete

if (!defined('LITESPEED_GUEST_OPTM')) {

[244] Fix | Delete

if (!Control::is_cacheable()) {

[245] Fix | Delete

self::debug('bypass: Not cacheable');

[246] Fix | Delete

return $content;

[247] Fix | Delete

}

[248] Fix | Delete

[249] Fix | Delete

// Check if hit URI excludes

[250] Fix | Delete

add_filter('litespeed_optm_uri_exc', array( $this->cls('Data'), 'load_optm_uri_exc' ));

[251] Fix | Delete

$excludes = apply_filters('litespeed_optm_uri_exc', $this->conf(self::O_OPTM_EXC));

[252] Fix | Delete

$result = Utility::str_hit_array($_SERVER['REQUEST_URI'], $excludes);

[253] Fix | Delete

if ($result) {

[254] Fix | Delete

self::debug('bypass: hit URI Excludes setting: ' . $result);

[255] Fix | Delete

return $content;

[256] Fix | Delete

}

[257] Fix | Delete

}

[258] Fix | Delete

[259] Fix | Delete

self::debug('start');

[260] Fix | Delete

[261] Fix | Delete

$this->content_ori = $this->content = $content;

[262] Fix | Delete

[263] Fix | Delete

$this->_optimize();

[264] Fix | Delete

return $this->content;

[265] Fix | Delete

}

[266] Fix | Delete

[267] Fix | Delete

/**

[268] Fix | Delete

* Optimize css src

[269] Fix | Delete

[270] Fix | Delete

* @since 1.2.2

[271] Fix | Delete

* @access private

[272] Fix | Delete

[273] Fix | Delete

private function _optimize() {

[274] Fix | Delete

global $wp;

[275] Fix | Delete

[276] Fix | Delete

// get current request url

[277] Fix | Delete

$permalink_structure = get_option( 'permalink_structure' );

[278] Fix | Delete

if ( ! empty( $permalink_structure ) ) {

[279] Fix | Delete

$this->_request_url = trailingslashit( home_url( $wp->request ) );

[280] Fix | Delete

} else {

[281] Fix | Delete

$qs_add = $wp->query_string ? '?' . (string) $wp->query_string : '' ;

[282] Fix | Delete

$this->_request_url = home_url( $wp->request ) . $qs_add;

[283] Fix | Delete

}

[284] Fix | Delete

[285] Fix | Delete

$this->cfg_css_min = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_CSS_MIN);

[286] Fix | Delete

$this->cfg_css_comb = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_CSS_COMB);

[287] Fix | Delete

$this->cfg_js_min = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_JS_MIN);

[288] Fix | Delete

$this->cfg_js_comb = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_JS_COMB);

[289] Fix | Delete

$this->cfg_ggfonts_rm = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_GGFONTS_RM);

[290] Fix | Delete

$this->cfg_ggfonts_async = !defined('LITESPEED_GUEST_OPTM') && $this->conf(self::O_OPTM_GGFONTS_ASYNC); // forced rm already

[291] Fix | Delete

$this->_conf_css_font_display = !defined('LITESPEED_GUEST_OPTM') && $this->conf(self::O_OPTM_CSS_FONT_DISPLAY);

[292] Fix | Delete

[293] Fix | Delete

if (!$this->cls('Router')->can_optm()) {

[294] Fix | Delete

self::debug('bypass: admin/feed/preview');

[295] Fix | Delete

return;

[296] Fix | Delete

}

[297] Fix | Delete

[298] Fix | Delete

if ($this->cfg_css_async) {

[299] Fix | Delete

$this->_ccss = $this->cls('CSS')->prepare_ccss();

[300] Fix | Delete

if (!$this->_ccss) {

[301] Fix | Delete

self::debug('❌ CCSS set to OFF due to CCSS not generated yet');

[302] Fix | Delete

$this->cfg_css_async = false;

[303] Fix | Delete

} elseif (strpos($this->_ccss, '<style id="litespeed-ccss" data-error') === 0) {

[304] Fix | Delete

self::debug('❌ CCSS set to OFF due to CCSS failed to generate');

[305] Fix | Delete

$this->cfg_css_async = false;

[306] Fix | Delete

}

[307] Fix | Delete

}

[308] Fix | Delete

[309] Fix | Delete

do_action('litespeed_optm');

[310] Fix | Delete

[311] Fix | Delete

// Parse css from content

[312] Fix | Delete

$src_list = false;

[313] Fix | Delete

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) {

[314] Fix | Delete

add_filter('litespeed_optimize_css_excludes', array( $this->cls('Data'), 'load_css_exc' ));

[315] Fix | Delete

list($src_list, $html_list) = $this->_parse_css();

[316] Fix | Delete

}

[317] Fix | Delete

[318] Fix | Delete

// css optimizer

[319] Fix | Delete

if ($this->cfg_css_min || $this->cfg_css_comb) {

[320] Fix | Delete

if ($src_list) {

[321] Fix | Delete

// IF combine

[322] Fix | Delete

if ($this->cfg_css_comb) {

[323] Fix | Delete

// Check if has inline UCSS enabled or not

[324] Fix | Delete

if ((defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_UCSS)) && $this->conf(self::O_OPTM_UCSS_INLINE)) {

[325] Fix | Delete

$filename = $this->cls('UCSS')->load($this->_request_url, true);

[326] Fix | Delete

if ($filename) {

[327] Fix | Delete

$filepath_prefix = $this->_build_filepath_prefix('ucss');

[328] Fix | Delete

$this->_ucss = File::read(LITESPEED_STATIC_DIR . $filepath_prefix . $filename);

[329] Fix | Delete

[330] Fix | Delete

// Drop all css

[331] Fix | Delete

$this->content = str_replace($html_list, '', $this->content);

[332] Fix | Delete

}

[333] Fix | Delete

}

[334] Fix | Delete

[335] Fix | Delete

if (!$this->_ucss) {

[336] Fix | Delete

$url = $this->_build_hash_url($src_list);

[337] Fix | Delete

[338] Fix | Delete

if ($url) {

[339] Fix | Delete

// Handle css async load

[340] Fix | Delete

if ($this->cfg_css_async) {

[341] Fix | Delete

$this->html_head .=

[342] Fix | Delete

'<link rel="preload" data-asynced="1" data-optimized="2" as="style" onload="this.onload=null;this.rel=\'stylesheet\'" href="' .

[343] Fix | Delete

Str::trim_quotes($url) .

[344] Fix | Delete

'" />'; // todo: How to use " in attr wrapper "

[345] Fix | Delete

} else {

[346] Fix | Delete

$this->html_head .= '<link data-optimized="2" rel="stylesheet" href="' . Str::trim_quotes($url) . '" />'; // use 2 as combined

[347] Fix | Delete

}

[348] Fix | Delete

[349] Fix | Delete

// Move all css to top

[350] Fix | Delete

$this->content = str_replace($html_list, '', $this->content);

[351] Fix | Delete

}

[352] Fix | Delete

}

[353] Fix | Delete

}

[354] Fix | Delete

// Only minify

[355] Fix | Delete

elseif ($this->cfg_css_min) {

[356] Fix | Delete

// will handle async css load inside

[357] Fix | Delete

$this->_src_queue_handler($src_list, $html_list);

[358] Fix | Delete

}

[359] Fix | Delete

// Only HTTP2 push

[360] Fix | Delete

else {

[361] Fix | Delete

foreach ($src_list as $src_info) {

[362] Fix | Delete

if (!empty($src_info['inl'])) {

[363] Fix | Delete

continue;

[364] Fix | Delete

}

[365] Fix | Delete

}

[366] Fix | Delete

}

[367] Fix | Delete

}

[368] Fix | Delete

}

[369] Fix | Delete

[370] Fix | Delete

// Handle css lazy load if not handled async loaded yet

[371] Fix | Delete

if ($this->cfg_css_async && !$this->cfg_css_min && !$this->cfg_css_comb) {

[372] Fix | Delete

// async html

[373] Fix | Delete

$html_list_async = $this->_async_css_list($html_list, $src_list);

[374] Fix | Delete

[375] Fix | Delete

// Replace async css

[376] Fix | Delete

$this->content = str_replace($html_list, $html_list_async, $this->content);

[377] Fix | Delete

}

[378] Fix | Delete

[379] Fix | Delete

// Parse js from buffer as needed

[380] Fix | Delete

$src_list = false;

[381] Fix | Delete

if ($this->cfg_js_min || $this->cfg_js_comb || $this->cfg_js_defer || $this->cfg_js_delay_inc) {

[382] Fix | Delete

add_filter('litespeed_optimize_js_excludes', array( $this->cls('Data'), 'load_js_exc' ));

[383] Fix | Delete

list($src_list, $html_list) = $this->_parse_js();

[384] Fix | Delete

}

[385] Fix | Delete

[386] Fix | Delete

// js optimizer

[387] Fix | Delete

if ($src_list) {

[388] Fix | Delete

// IF combine

[389] Fix | Delete

if ($this->cfg_js_comb) {

[390] Fix | Delete

$url = $this->_build_hash_url($src_list, 'js');

[391] Fix | Delete

if ($url) {

[392] Fix | Delete

$this->html_foot .= $this->_build_js_tag($url);

[393] Fix | Delete

[394] Fix | Delete

// Will move all JS to bottom combined one

[395] Fix | Delete

$this->content = str_replace($html_list, '', $this->content);

[396] Fix | Delete

}

[397] Fix | Delete

}

[398] Fix | Delete

// Only minify

[399] Fix | Delete

elseif ($this->cfg_js_min) {

[400] Fix | Delete

// Will handle js defer inside

[401] Fix | Delete

$this->_src_queue_handler($src_list, $html_list, 'js');

[402] Fix | Delete

}

[403] Fix | Delete

// Only HTTP2 push and Defer

[404] Fix | Delete

else {

[405] Fix | Delete

foreach ($src_list as $k => $src_info) {

[406] Fix | Delete

// Inline JS

[407] Fix | Delete

if (!empty($src_info['inl'])) {

[408] Fix | Delete

if ($this->cfg_js_defer) {

[409] Fix | Delete

$attrs = !empty($src_info['attrs']) ? $src_info['attrs'] : '';

[410] Fix | Delete

$deferred = $this->_js_inline_defer($src_info['src'], $attrs);

[411] Fix | Delete

if ($deferred) {

[412] Fix | Delete

$this->content = str_replace($html_list[$k], $deferred, $this->content);

[413] Fix | Delete

}

[414] Fix | Delete

}

[415] Fix | Delete

}

[416] Fix | Delete

// JS files

[417] Fix | Delete

elseif ($this->cfg_js_defer) {

[418] Fix | Delete

$deferred = $this->_js_defer($html_list[$k], $src_info['src']);

[419] Fix | Delete

if ($deferred) {

[420] Fix | Delete

$this->content = str_replace($html_list[$k], $deferred, $this->content);

[421] Fix | Delete

}

[422] Fix | Delete

} elseif ($this->cfg_js_delay_inc) {

[423] Fix | Delete

$deferred = $this->_js_delay($html_list[$k], $src_info['src']);

[424] Fix | Delete

if ($deferred) {

[425] Fix | Delete

$this->content = str_replace($html_list[$k], $deferred, $this->content);

[426] Fix | Delete

}

[427] Fix | Delete

}

[428] Fix | Delete

}

[429] Fix | Delete

}

[430] Fix | Delete

}

[431] Fix | Delete

[432] Fix | Delete

// Append JS inline var for preserved ESI

[433] Fix | Delete

// Shouldn't give any optm (defer/delay) @since 4.4

[434] Fix | Delete

if ($this->_var_preserve_js) {

[435] Fix | Delete

$this->html_head .= '<script>var ' . implode(',', $this->_var_preserve_js) . ';</script>';

[436] Fix | Delete

self::debug2('Inline JS defer vars', $this->_var_preserve_js);

[437] Fix | Delete

}

[438] Fix | Delete

[439] Fix | Delete

// Append async compatibility lib to head

[440] Fix | Delete

if ($this->cfg_css_async) {

[441] Fix | Delete

// Inline css async lib

[442] Fix | Delete

if ($this->conf(self::O_OPTM_CSS_ASYNC_INLINE)) {

[443] Fix | Delete

$this->html_head .= $this->_build_js_inline(File::read(LSCWP_DIR . self::LIB_FILE_CSS_ASYNC), true);

[444] Fix | Delete

} else {

[445] Fix | Delete

$css_async_lib_url = LSWCP_PLUGIN_URL . self::LIB_FILE_CSS_ASYNC;

[446] Fix | Delete

$this->html_head .= $this->_build_js_tag($css_async_lib_url); // Don't exclude it from defer for now

[447] Fix | Delete

}

[448] Fix | Delete

}

[449] Fix | Delete

[450] Fix | Delete

/**

[451] Fix | Delete

* Handle google fonts async

[452] Fix | Delete

* This will result in a JS snippet in head, so need to put it in the end to avoid being replaced by JS parser

[453] Fix | Delete

[454] Fix | Delete

$this->_async_ggfonts();

[455] Fix | Delete

[456] Fix | Delete

/**

[457] Fix | Delete

* Font display optm

[458] Fix | Delete

[459] Fix | Delete

* @since 3.0

[460] Fix | Delete

[461] Fix | Delete

$this->_font_optm();

[462] Fix | Delete

[463] Fix | Delete

// Inject JS Delay lib

[464] Fix | Delete

$this->_maybe_js_delay();

[465] Fix | Delete

[466] Fix | Delete

/**

[467] Fix | Delete

* HTML Lazyload

[468] Fix | Delete

[469] Fix | Delete

if ($this->conf(self::O_OPTM_HTML_LAZY)) {

[470] Fix | Delete

$this->html_head = $this->cls('CSS')->prepare_html_lazy() . $this->html_head;

[471] Fix | Delete

}

[472] Fix | Delete

[473] Fix | Delete

// Maybe prepend inline UCSS

[474] Fix | Delete

if ($this->_ucss) {

[475] Fix | Delete

$this->html_head = '<style id="litespeed-ucss">' . $this->_ucss . '</style>' . $this->html_head;

[476] Fix | Delete

}

[477] Fix | Delete

[478] Fix | Delete

// Check if there is any critical css rules setting

[479] Fix | Delete

if ($this->cfg_css_async && $this->_ccss) {

[480] Fix | Delete

$this->html_head = $this->_ccss . $this->html_head;

[481] Fix | Delete

}

[482] Fix | Delete

[483] Fix | Delete

// Replace html head part

[484] Fix | Delete

$this->html_head_early = apply_filters('litespeed_optm_html_head_early', $this->html_head_early);

[485] Fix | Delete

if ($this->html_head_early) {

[486] Fix | Delete

// Put header content to be after charset

[487] Fix | Delete

if (false !== strpos($this->content, '<meta charset')) {

[488] Fix | Delete

self::debug('Put early optm data to be after <meta charset>');

[489] Fix | Delete

$this->content = preg_replace('#<meta charset([^>]*)>#isU', '<meta charset$1>' . $this->html_head_early, $this->content, 1);

[490] Fix | Delete

} else {

[491] Fix | Delete

self::debug('Put early optm data to be right after <head>');

[492] Fix | Delete

$this->content = preg_replace('#<head([^>]*)>#isU', '<head$1>' . $this->html_head_early, $this->content, 1);

[493] Fix | Delete

}

[494] Fix | Delete

}

[495] Fix | Delete

$this->html_head = apply_filters('litespeed_optm_html_head', $this->html_head);

[496] Fix | Delete

if ($this->html_head) {

[497] Fix | Delete

if (apply_filters('litespeed_optm_html_after_head', false)) {

[498] Fix | Delete

$this->content = str_replace('</head>', $this->html_head . '</head>', $this->content);

[499] Fix | Delete

12 3