a22573bf0b
- WordPress core y plugins - Tema Twenty Twenty-Four configurado - Plugin allow-unfiltered-html.php simplificado - .gitignore configurado para excluir wp-config.php y uploads 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
359 lines
12 KiB
PHP
Executable File
359 lines
12 KiB
PHP
Executable File
<?php
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namespace Perfmatters;
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class Preload
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{
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private static $fetch_priority;
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private static $preloads;
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private static $critical_images;
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private static $preloads_ready = array();
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private static $used_srcs = array();
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//initialize preload functions
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public static function init()
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{
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add_action('wp', array('Perfmatters\Preload', 'queue'));
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}
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//queue functions
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public static function queue()
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{
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//fetch priority
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self::$fetch_priority = apply_filters('perfmatters_fetch_priority', Config::$options['preload']['fetch_priority'] ?? array());
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if(!empty(self::$fetch_priority)) {
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add_action('perfmatters_output_buffer_template_redirect', array('Perfmatters\Preload', 'add_fetch_priority'));
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}
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//preloads
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self::$preloads = apply_filters('perfmatters_preloads', Config::$options['preload']['preload'] ?? array());
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self::$critical_images = apply_filters('perfmatters_preload_critical_images', Config::$options['preload']['critical_images'] ?? 0);
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if(!empty(self::$preloads) || !empty(self::$critical_images)) {
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add_action('perfmatters_output_buffer_template_redirect', array('Perfmatters\Preload', 'add_preloads'));
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}
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}
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//add fetch priority
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public static function add_fetch_priority($html) {
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$selectors = array();
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$parent_selectors = array();
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foreach(self::$fetch_priority as $line) {
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//device type check
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if(!empty($line['device'])) {
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$device_type = wp_is_mobile() ? 'mobile' : 'desktop';
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if($line['device'] != $device_type) {
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continue;
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}
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}
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//location check
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if(!empty($line['locations'])) {
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if(!self::location_check($line['locations'])) {
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continue;
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}
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}
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//add selector
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if(!empty($line['parent'])) {
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$parent_selectors[] = $line['selector'];
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}
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else {
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$selectors[] = $line['selector'];
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}
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}
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//parent selectors
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if(!empty($parent_selectors)) {
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//match all selectors
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preg_match_all('#<(div|section|figure)(\s[^>]*?(' . implode('|', $parent_selectors) . ').*?)>.*?<(link|img|script).*?<\/\g1>#is', $html, $parents, PREG_SET_ORDER);
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if(!empty($parents)) {
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foreach($parents as $parent) {
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//match all tags
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preg_match_all('#<(?>link|img|script)(\s[^>]*?)>#is', $parent[0], $tags, PREG_SET_ORDER);
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if(!empty($tags)) {
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//loop through images
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foreach($tags as $tag) {
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$tag_atts = Utilities::get_atts_array($tag[1]);
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$key = array_search($parent[2], array_column(self::$fetch_priority, 'selector'));
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$tag_atts['fetchpriority'] = self::$fetch_priority[$key]['priority'];;
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//replace video attributes string
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$new_tag = str_replace($tag[1], ' ' . Utilities::get_atts_string($tag_atts), $tag[0]);
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//replace video with placeholder
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$html = str_replace($tag[0], $new_tag, $html);
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unset($new_tag);
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}
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}
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}
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}
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}
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//selectors
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if(!empty($selectors)) {
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preg_match_all('#<(?>link|img|script)(\s[^>]*?(' . implode('|', $selectors) . ').*?)>#is', $html, $matches, PREG_SET_ORDER);
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if(!empty($matches)) {
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foreach($matches as $tag) {
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$atts = Utilities::get_atts_array($tag[1]);
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$key = array_search($tag[2], array_column(self::$fetch_priority, 'selector'));
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$atts['fetchpriority'] = self::$fetch_priority[$key]['priority'];;
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//replace video attributes string
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$new_tag = str_replace($tag[1], ' ' . Utilities::get_atts_string($atts), $tag[0]);
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//replace video with placeholder
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$html = str_replace($tag[0], $new_tag, $html);
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}
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}
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}
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return $html;
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}
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//add preloads to html
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public static function add_preloads($html) {
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if(!empty(self::$critical_images)) {
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self::add_critical_image_preloads($html, Utilities::clean_html($html));
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}
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if(!empty(self::$preloads)) {
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$mime_types = array(
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'svg' => 'image/svg+xml',
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'ttf' => 'font/ttf',
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'otf' => 'font/otf',
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'woff' => 'font/woff',
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'woff2' => 'font/woff2',
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'eot' => 'application/vnd.ms-fontobject',
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'sfnt' => 'font/sfnt'
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);
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foreach(self::$preloads as $line) {
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//device type check
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if(!empty($line['device'])) {
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$device_type = wp_is_mobile() ? 'mobile' : 'desktop';
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if($line['device'] != $device_type) {
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continue;
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}
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}
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//location check
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if(!empty($line['locations'])) {
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if(!self::location_check($line['locations'])) {
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continue;
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}
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}
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$mime_type = "";
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if(!empty($line['as']) && $line['as'] == 'font') {
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$path_info = pathinfo($line['url']);
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$mime_type = !empty($path_info['extension']) && isset($mime_types[$path_info['extension']]) ? $mime_types[$path_info['extension']] : "";
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}
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//print script/style handle as preload
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if(!empty($line['as']) && in_array($line['as'], array('script', 'style'))) {
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if(strpos($line['url'], '.') === false) {
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global $wp_scripts;
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global $wp_styles;
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$scripts_arr = $line['as'] == 'script' ? $wp_scripts : $wp_styles;
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if(!empty($scripts_arr)) {
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$scripts_arr = $scripts_arr->registered;
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if(array_key_exists($line['url'], $scripts_arr)) {
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$url = $scripts_arr[$line['url']]->src;
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$parsed_url = parse_url($scripts_arr[$line['url']]->src);
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if(empty($parsed_url['host'])) {
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$url = site_url($url);
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}
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if(strpos($url, '?') === false) {
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$ver = $scripts_arr[$line['url']]->ver;
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if(empty($ver)) {
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$ver = get_bloginfo('version');
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}
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}
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$line['url'] = $url . (!empty($ver) ? '?ver=' . $ver : '');
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}
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else {
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continue;
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}
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}
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else {
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continue;
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}
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}
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}
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$preload = "<link rel='preload' href='" . $line['url'] . "'" . (!empty($line['as']) ? " as='" . $line['as'] . "'" : "") . (!empty($mime_type) ? " type='" . $mime_type . "'" : "") . (!empty($line['crossorigin']) ? " crossorigin" : "") . (!empty($line['as']) && $line['as'] == 'style' ? " onload=\"this.rel='stylesheet';this.removeAttribute('onload');\"" : "") . ">";
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if($line['as'] == 'image') {
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array_unshift(self::$preloads_ready, $preload);
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}
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else {
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self::$preloads_ready[] = $preload;
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}
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}
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}
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if(!empty(self::$preloads_ready)) {
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$preloads_string = "";
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foreach(apply_filters('perfmatters_preloads_ready', self::$preloads_ready) as $preload) {
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$preloads_string.= $preload;
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}
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$pos = strpos($html, '</title>');
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if($pos !== false) {
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$html = substr_replace($html, '</title>' . $preloads_string, $pos, 8);
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}
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}
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return $html;
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}
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//add critical image preloads
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public static function add_critical_image_preloads(&$html, $clean_html) {
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//match all image formats
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preg_match_all('#(<picture.*?)?<img([^>]+?)\/?>(?><\/picture>)?#is', $clean_html, $matches, PREG_SET_ORDER);
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if(!empty($matches)) {
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$exclusions = apply_filters('perfmatters_critical_image_exclusions', array(
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';base64',
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'w3.org'
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));
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$count = 0;
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foreach($matches as $match) {
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if($count >= self::$critical_images) {
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break;
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}
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if(strpos($match[0], 'secure.gravatar.com') !== false) {
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continue;
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}
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if(!empty($exclusions) && is_array($exclusions)) {
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foreach($exclusions as $exclusion) {
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if(strpos($match[0], $exclusion) !== false) {
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continue 2;
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}
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}
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}
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//picture tag
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if(!empty($match[1])) {
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preg_match('#<source([^>]+?image\/(webp|avif)[^>]+?)\/?>#is', $match[0], $source);
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if(!empty($source)) {
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if(self::generate_critical_image_preload($source[1])) {
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$new_picture = str_replace('<picture', '<picture data-perfmatters-preload', $match[0]);
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$new_picture = str_replace('<img', '<img data-perfmatters-preload', $new_picture);
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$html = str_replace($match[0], $new_picture, $html);
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$count++;
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}
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continue;
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}
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}
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//img tag
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if(!empty($match[2])) {
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if(self::generate_critical_image_preload($match[2])) {
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$new_image = str_replace('<img', '<img data-perfmatters-preload', $match[0]);
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$html = str_replace($match[0], $new_image, $html);
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$count++;
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}
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}
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}
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}
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if(!empty(self::$preloads_ready)) {
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ksort(self::$preloads_ready);
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}
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}
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//generate preload link from att string
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private static function generate_critical_image_preload($att_string) {
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if(!empty($att_string)) {
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$atts = Utilities::get_atts_array($att_string);
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$src = $atts['data-src'] ?? $atts['src'] ?? '';
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//dont add if src was already used
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if(in_array($src, self::$used_srcs)) {
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return false;
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}
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//generate preload
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self::$preloads_ready[] = '<link rel="preload" href="' . $src . '" as="image"' . (!empty($atts['srcset']) ? ' imagesrcset="' . $atts['srcset'] . '"' : '') . (!empty($atts['sizes']) ? ' imagesizes="' . $atts['sizes'] . '"' : '') . ' />';
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//mark src used and return
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if(!empty($src)) {
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self::$used_srcs[] = $src;
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}
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return true;
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}
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}
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private static function location_check($locations) {
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$location_match = false;
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$exploded_locations = explode(',', $locations);
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$trimmed_locations = array_map('trim', $exploded_locations);
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//single post exclusion
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if(is_singular()) {
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global $post;
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if(in_array($post->ID, $trimmed_locations)) {
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$location_match = true;
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}
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}
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//posts page exclusion
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elseif(is_home() && in_array('blog', $trimmed_locations)) {
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$location_match = true;
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}
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elseif(is_archive()) {
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//woocommerce shop check
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if(function_exists('is_shop') && is_shop()) {
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if(in_array(wc_get_page_id('shop'), $trimmed_locations)) {
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$location_match = true;
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}
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}
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}
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return $location_match;
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}
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} |