Viewing file:  googlefonts.php (5.57 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
/*
* SPEEDYCACHE
* https://speedycache.com/
* (c) SpeedyCache Team
*/
namespace SpeedyCache;
if(!defined('ABSPATH')){
die('Hacking Attempt');
}
class GoogleFonts{
// Plucks out the google font urls from the content
static function get($content){
preg_match_all('/<link.*href=(["\'])(.*fonts\.googleapis\.com\/css.*?)\1/m', $content, $font_rels);
//We just need the index 2
if(empty($font_rels[2])){
return $content;
}
$fonts = array();
for($i = 0; $i < count($font_rels[2]); $i++){
if(empty($font_rels[2][$i])){
continue;
}
$fonts[md5($font_rels[2][$i])] = $font_rels[2][$i];
}
if(empty($fonts)){
return;
}
self::fetch($fonts);
}
// Reads the font css and saves it to /speedycache/fonts/font-name/
static function fetch($fonts){
$html = '<!DOCTYPE html>
<html>
<body>
<a href="https://speedycache.com">SpeedyCache</a>
</body>
</html>';
foreach($fonts as $font_name => $url){
$url = esc_url($url);
if(substr($url, 0, 2) === '//'){
$url = 'https:' . $url;
}
$response = wp_remote_get($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'));
if(is_wp_error($response) || !is_array($response)){
continue;
}
$css = wp_remote_retrieve_body($response);
if(is_wp_error($css) || empty($css)){
continue;
}
if(!file_exists(speedycache_cache_path('fonts'))){
@mkdir(speedycache_cache_path('fonts'));
}
if(!file_exists(speedycache_cache_path('fonts/index.html'))){
file_put_contents(speedycache_cache_path('fonts/index.html'), $html);
}
if(!file_exists(speedycache_cache_path('fonts/').$font_name)){
@mkdir(speedycache_cache_path('fonts/').$font_name);
}
if(!file_exists(speedycache_cache_path('fonts/').$font_name . '/index.html')){
file_put_contents(speedycache_cache_path('fonts/').$font_name . '/index.html', $html);
}
preg_match_all('/url\((.*?)\)/m', $response['body'], $urls); // Get URL from the CSS we got
if(empty($urls) || empty($urls[1])){
continue;
}
foreach($urls[1] as $url){
$file_name = basename($url);
if(file_exists(speedycache_cache_path('fonts/') . $font_name . '/' . $file_name)){
continue;
}
if(strpos($url, 'display=swap') === FALSE){
$url_to_hit = add_query_arg(array('display' => 'swap'), $url);
}
$response = wp_remote_get($url_to_hit);
if(is_wp_error($response) || !is_array($response)){
continue;
}
$font = wp_remote_retrieve_body($response);
if(is_wp_error($font) || empty($font)){
continue;
}
file_put_contents(speedycache_cache_path('fonts/').$font_name.'/'.$file_name, $font); // Creating the font file
$css = str_replace($url, SPEEDYCACHE_CACHE_URL .'/'. SPEEDYCACHE_SERVER_HOST . '/fonts/'. $font_name .'/'. $file_name, $css);
}
if(file_exists(speedycache_cache_path('fonts/').$font_name.'/'.$font_name . '.css')){
return;
}
//If we need to add swap then either we failed to add display=swap to the url or it didnt return what we expected.
if(strpos($css, 'swap') === FALSE){
$css = preg_replace('/(^@font-face\s{)/m', "$1\n font-display: swap;", $css);
}
file_put_contents(speedycache_cache_path('fonts/').$font_name.'/'.$font_name . '.css', $css);
}
}
// Replaces font url to the local font url
static function replace($content){
$cache_dir = speedycache_cache_path();
if(!is_dir($cache_dir . '/fonts')){
@mkdir($cache_dir . '/fonts', 0755, true);
}
$fonts = array_diff(@scandir($cache_dir . 'fonts'), array('..', '.'));
if(empty($fonts)){
return $content;
}
// To remove any preload or dns-fetch or preconnect for google fonts
preg_match_all('/<link(?:[^>]+)?href=(["\'])([^>]*?fonts\.(gstatic|googleapis)\.com.*?)\1.*?>/i', $content, $google_links, PREG_SET_ORDER);
if(!empty($google_links)){
foreach($google_links as $google_link){
preg_match('/rel=(["\'])(.*?(preload|preconnect|dns-fetch).*?)\1/i', $google_link[2], $removeable_link);
if(!empty($removeable_link)){
$content = str_replace($google, '', $html);
}
}
}
/**
* Our Font css name is in md5(created from the font URL) and we dont have URL in this function to get
* all the google fonts url to replace the fonts .
*/
preg_match_all('/<link.*href=(["\'])(.*fonts\.googleapis\.com\/css.*?)\1/m', $content, $font_rels);
if(empty($font_rels[2])){
return $content;
}
foreach($font_rels[2] as $url){
foreach($fonts as $font){
if(in_array($font, array('.', '..'))){
continue;
}
if(!file_exists($cache_dir . 'fonts/' . $font . '/' . $font . '.css')){
continue;
}
$css_url = SPEEDYCACHE_CACHE_URL .'/'. SPEEDYCACHE_SERVER_HOST . '/fonts/' . $font . '/' . $font . '.css';
if(md5($url) === $font){
$content = preg_replace('/<link(.*)href=(["\'])(.*fonts\.googleapis\.com\/css.*?)\2/m', '<link$1 href="'.$css_url .'" ', $content);
}
}
}
return $content;
}
static function add_swap($content){
$content = str_replace('&display=swap', '', $content);
$content = str_replace('&display=swap', '', $content);
// Add font-display=swap as a querty parameter to Google fonts
$content = str_replace('googleapis.com/css?family', 'googleapis.com/css?display=swap&family', $content);
return $content;
}
}
|