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<?php
/**
* Copyright (с) Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2022 All Rights Reserved
*
* Licensed under CLOUD LINUX LICENSE AGREEMENT
* https://www.cloudlinux.com/legal/
*/
namespace XrayProfiler;
if (!class_exists('\XrayProfiler\CssResourceParser')) {
class CssResourceParser
{
/**
* @var int
*/
private $count = 0;
/**
* @param string $html
*
* @return void
*/
public function parse($html)
{
$html = $this->removeNoscriptTags($html);
if (0 === strlen($html)) {
return;
}
if (!preg_match_all('/<link[^>]+href=[\'"](?<href>.+?)[\'"][^>]*>/i', $html, $matches)) {
return;
}
if (!is_array($matches) || empty($matches[0])) {
return;
}
foreach ($matches[0] as $key => $link_fragment) {
if (preg_match('/rel=["\']preload["\']/i', $link_fragment)) {
// skip preloaded links
continue;
}
if (preg_match('/\bdisabled\b/i', $link_fragment)) {
// skip disabled links
continue;
}
$link_url = $matches['href'][$key];
$url_path = parse_url($link_url, PHP_URL_PATH);
if (!is_string($url_path)) {
continue;
}
$extension = pathinfo($url_path, PATHINFO_EXTENSION);
if ('css' !== $extension) {
continue;
}
$this->count++;
}
}
/**
* @return int
*/
public function getCount()
{
return $this->count;
}
/**
* Removes NOSCRIPT HTML tags from HTML markup.
*
* @param string $html HTML code.
*
* @return string HTML code without NOSCRIPT tags.
*/
public function removeNoscriptTags($html)
{
return (string) preg_replace('#<noscript(.*?)>(.*?)</noscript>#is', '', $html);
}
}
}