| Server IP : 162.0.212.4 / Your IP :
216.73.216.14 [
Web Server : LiteSpeed System : Linux premium146.web-hosting.com 4.18.0-553.44.1.lve.el8.x86_64 #1 SMP Thu Mar 13 14:29:12 UTC 2025 x86_64 User : alshnoli ( 2431) PHP Version : 8.3.28 Disable Function : NONE Domains : 1 Domains MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : OFF | Pkexec : OFF Directory : /home/alshnoli/public_html/wp-content/plugins/perfmatters/inc/classes/ |
Upload File : |
<?php
namespace Perfmatters;
use Requests;
class Fonts
{
private static $font_file_cache_url = PERFMATTERS_CACHE_URL;
//initialize fonts
public static function init() {
if(empty(Config::$options['fonts']['disable_google_fonts'])) {
add_action('wp', array('Perfmatters\Fonts', 'queue'));
}
}
//queue functions
public static function queue()
{
//add display swap to the buffer
if(!empty(Config::$options['fonts']['display_swap'])) {
add_action('perfmatters_output_buffer_template_redirect', array('Perfmatters\Fonts', 'display_swap'));
}
//add local google fonts to the buffer
if(!empty(Config::$options['fonts']['local_google_fonts'])) {
add_action('perfmatters_output_buffer_template_redirect', array('Perfmatters\Fonts', 'local_google_fonts'));
}
}
//add display swap to google font files
public static function display_swap($html) {
//find google fonts
preg_match_all('#<link[^>]+?href=(["\'])([^>]*?fonts\.googleapis\.com\/css.*?)\1.*?>#i', $html, $google_fonts, PREG_SET_ORDER);
if(!empty($google_fonts)) {
foreach($google_fonts as $google_font) {
//replace display parameter
$new_href = preg_replace('/&display=(auto|block|fallback|optional|swap)/', '', html_entity_decode($google_font[2]));
$new_href.= '&display=swap';
//create font tag with new href
$new_google_font = str_replace($google_font[2], $new_href, $google_font[0]);
//replace original font tag
$html = str_replace($google_font[0], $new_google_font, $html);
}
}
return $html;
}
//download and host google font files locally
public static function local_google_fonts($html) {
//create our fonts cache directory
if(!is_dir(PERFMATTERS_CACHE_DIR . 'fonts/')) {
@mkdir(PERFMATTERS_CACHE_DIR . 'fonts/', 0755, true);
}
//rewrite cdn url in font file cache url
$cdn_url = !empty(Config::$options['fonts']['cdn_url']) ? Config::$options['fonts']['cdn_url'] : (!empty(Config::$options['cdn']['enable_cdn']) && !empty(Config::$options['cdn']['cdn_url']) ? Config::$options['cdn']['cdn_url'] : '');
if(!empty($cdn_url)) {
self::$font_file_cache_url = str_replace(site_url(), untrailingslashit($cdn_url), PERFMATTERS_CACHE_URL);
}
//remove existing google font preconnect + prefetch links
preg_match_all('#<link(?:[^>]+)?href=(["\'])([^>]*?fonts\.(gstatic|googleapis)\.com.*?)\1.*?>#i', $html, $google_links, PREG_SET_ORDER);
if(!empty($google_links)) {
foreach($google_links as $google_link) {
if(preg_match('#rel=(["\'])(.*?(preconnect|prefetch).*?)\1#i', $google_link[0])) {
$html = str_replace($google_link[0], '', $html);
}
}
}
//find google fonts
preg_match_all('#<link[^>]+?href=(["\'])([^>]*?fonts\.googleapis\.com\/css.*?)\1.*?>#i', $html, $google_fonts, PREG_SET_ORDER);
if(!empty($google_fonts)) {
foreach($google_fonts as $google_font) {
//create unique file details
$file_name = substr(md5($google_font[2]), 0, 12) . ".google-fonts.css";
$file_path = PERFMATTERS_CACHE_DIR . 'fonts/' . $file_name;
$file_url = PERFMATTERS_CACHE_URL . 'fonts/' . $file_name;
//download file if it doesn't exist
if(!file_exists($file_path)) {
if(!self::download_google_font($google_font[2], $file_path)) {
continue;
}
}
//create font tag with new url
$new_google_font = str_replace($google_font[2], $file_url, $google_font[0]);
//async
if(!empty(Config::$options['fonts']['async'])) {
$new_google_font = preg_replace(array('#media=([\'"]).+?\1#', '#onload=([\'"]).+?\1#'), '', $new_google_font);
$new_google_font = str_replace('<link', '<link media="print" onload="this.media=\'all\';this.onload=null;"', $new_google_font);
}
//replace original font tag
$html = str_replace($google_font[0], $new_google_font, $html);
}
}
return $html;
}
//download and save google font css file
private static function download_google_font($url, $file_path)
{
//add https if using relative scheme
if(substr($url, 0, 2) === '//') {
$url = 'https:' . $url;
}
//download css file
$css_response = wp_remote_get(html_entity_decode($url), array('user-agent' => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.122 Safari/537.36'));
//check valid response
if(wp_remote_retrieve_response_code($css_response) !== 200) {
return false;
}
//css content
$css = $css_response['body'];
//find font files inside the css
$regex = '/url\((https:\/\/fonts\.gstatic\.com\/.*?)\)/';
preg_match_all($regex, $css, $matches);
$font_urls = array_unique($matches[1]);
$font_requests = array();
foreach($font_urls as $font_url) {
if(!file_exists(PERFMATTERS_CACHE_DIR . 'fonts/' . basename($font_url))) {
$font_requests[] = array('url' => $font_url, 'type' => 'GET');
}
$cached_font_url = self::$font_file_cache_url . 'fonts/' . basename($font_url);
$css = str_replace($font_url, $cached_font_url, $css);
}
//download new font files to cache directory
if(method_exists(Requests::class, 'request_multiple')) {
$font_responses = Requests::request_multiple($font_requests);
foreach($font_responses as $font_response) {
if(is_a($font_response, 'Requests_Response')) {
$font_path = PERFMATTERS_CACHE_DIR . 'fonts/' . basename($font_response->url);
//save font file
file_put_contents($font_path, $font_response->body);
}
}
}
//save final css file
file_put_contents($file_path, $css);
return true;
}
//delete all files in the fonts cache directory
public static function clear_local_fonts()
{
$files = glob(PERFMATTERS_CACHE_DIR . 'fonts/*');
foreach($files as $file) {
if(is_file($file)) {
unlink($file);
}
}
}
}