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media.cls.php
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<?php /** * The class to operate media data. * * @since 1.4 * @since 1.5 Moved into /inc * @package Core * @subpackage Core/inc * @author LiteSpeed Technologies <info@litespeedtech.com> */ namespace LiteSpeed; defined('WPINC') || exit(); class Media extends Root { const LOG_TAG = '📺'; const LIB_FILE_IMG_LAZYLOAD = 'assets/js/lazyload.min.js'; private $content; private $_wp_upload_dir; /** * Init * * @since 1.4 */ public function __construct() { Debug2::debug2('[Media] init'); $this->_wp_upload_dir = wp_upload_dir(); } /** * Init optm features * * @since 3.0 * @access public */ public function init() { if (is_admin()) { return; } // Due to ajax call doesn't send correct accept header, have to limit webp to HTML only if (defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_IMG_OPTM_WEBP)) { if ($this->webp_support()) { // Hook to srcset if (function_exists('wp_calculate_image_srcset')) { add_filter('wp_calculate_image_srcset', array($this, 'webp_srcset'), 988); } // Hook to mime icon // add_filter( 'wp_get_attachment_image_src', array( $this, 'webp_attach_img_src' ), 988 );// todo: need to check why not // add_filter( 'wp_get_attachment_url', array( $this, 'webp_url' ), 988 ); // disabled to avoid wp-admin display } } if ($this->conf(Base::O_MEDIA_LAZY) && !$this->cls('Metabox')->setting('litespeed_no_image_lazy')) { self::debug('Suppress default WP lazyload'); add_filter('wp_lazy_loading_enabled', '__return_false'); } /** * Replace gravatar * @since 3.0 */ $this->cls('Avatar'); add_filter('litespeed_buffer_finalize', array($this, 'finalize'), 4); add_filter('litespeed_optm_html_head', array($this, 'finalize_head')); } /** * Add featured image to head */ public function finalize_head($content) { global $wp_query; // <link rel="preload" as="image" href="xx"> if ($this->conf(Base::O_MEDIA_PRELOAD_FEATURED) && $wp_query->is_single) { $featured_image_url = get_the_post_thumbnail_url(); if ($featured_image_url) { self::debug('Append featured image to head: ' . $featured_image_url); if ((defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_IMG_OPTM_WEBP)) && $this->webp_support()) { $featured_image_url = $this->replace_webp($featured_image_url) ?: $featured_image_url; } $content .= '<link rel="preload" as="image" href="' . $featured_image_url . '">'; } } return $content; } /** * Adjust WP default JPG quality * * @since 3.0 * @access public */ public function adjust_jpg_quality($quality) { $v = $this->conf(Base::O_IMG_OPTM_JPG_QUALITY); if ($v) { return $v; } return $quality; } /** * Register admin menu * * @since 1.6.3 * @access public */ public function after_admin_init() { /** * JPG quality control * @since 3.0 */ add_filter('jpeg_quality', array($this, 'adjust_jpg_quality')); add_filter('manage_media_columns', array($this, 'media_row_title')); add_filter('manage_media_custom_column', array($this, 'media_row_actions'), 10, 2); add_action('litespeed_media_row', array($this, 'media_row_con')); // Hook to attachment delete action add_action('delete_attachment', __CLASS__ . '::delete_attachment'); } /** * Media delete action hook * * @since 2.4.3 * @access public */ public static function delete_attachment($post_id) { // if (!Data::cls()->tb_exist('img_optm')) { // return; // } self::debug('delete_attachment [pid] ' . $post_id); Img_Optm::cls()->reset_row($post_id); } /** * Return media file info if exists * * This is for remote attachment plugins * * @since 2.9.8 * @access public */ public function info($short_file_path, $post_id) { $short_file_path = wp_normalize_path($short_file_path); $basedir = $this->_wp_upload_dir['basedir'] . '/'; if (strpos($short_file_path, $basedir) === 0) { $short_file_path = substr($short_file_path, strlen($basedir)); } $real_file = $basedir . $short_file_path; if (file_exists($real_file)) { return array( 'url' => $this->_wp_upload_dir['baseurl'] . '/' . $short_file_path, 'md5' => md5_file($real_file), 'size' => filesize($real_file), ); } /** * WP Stateless compatibility #143 https://github.com/litespeedtech/lscache_wp/issues/143 * @since 2.9.8 * @return array( 'url', 'md5', 'size' ) */ $info = apply_filters('litespeed_media_info', array(), $short_file_path, $post_id); if (!empty($info['url']) && !empty($info['md5']) && !empty($info['size'])) { return $info; } return false; } /** * Delete media file * * @since 2.9.8 * @access public */ public function del($short_file_path, $post_id) { $real_file = $this->_wp_upload_dir['basedir'] . '/' . $short_file_path; if (file_exists($real_file)) { unlink($real_file); self::debug('deleted ' . $real_file); } do_action('litespeed_media_del', $short_file_path, $post_id); } /** * Rename media file * * @since 2.9.8 * @access public */ public function rename($short_file_path, $short_file_path_new, $post_id) { $real_file = $this->_wp_upload_dir['basedir'] . '/' . $short_file_path; $real_file_new = $this->_wp_upload_dir['basedir'] . '/' . $short_file_path_new; if (file_exists($real_file)) { rename($real_file, $real_file_new); self::debug('renamed ' . $real_file . ' to ' . $real_file_new); } do_action('litespeed_media_rename', $short_file_path, $short_file_path_new, $post_id); } /** * Media Admin Menu -> Image Optimization Column Title * * @since 1.6.3 * @access public */ public function media_row_title($posts_columns) { $posts_columns['imgoptm'] = __('LiteSpeed Optimization', 'litespeed-cache'); return $posts_columns; } /** * Media Admin Menu -> Image Optimization Column * * @since 1.6.2 * @access public */ public function media_row_actions($column_name, $post_id) { if ($column_name !== 'imgoptm') { return; } do_action('litespeed_media_row', $post_id); } /** * Display image optm info * * @since 3.0 */ public function media_row_con($post_id) { $att_info = wp_get_attachment_metadata($post_id); if (empty($att_info['file'])) { return; } $short_path = $att_info['file']; $size_meta = get_post_meta($post_id, Img_Optm::DB_SIZE, true); echo '<p>'; // Original image info if ($size_meta && !empty($size_meta['ori_saved'])) { $percent = ceil(($size_meta['ori_saved'] * 100) / $size_meta['ori_total']); $extension = pathinfo($short_path, PATHINFO_EXTENSION); $bk_file = substr($short_path, 0, -strlen($extension)) . 'bk.' . $extension; $bk_optm_file = substr($short_path, 0, -strlen($extension)) . 'bk.optm.' . $extension; $link = Utility::build_url(Router::ACTION_IMG_OPTM, 'orig' . $post_id); $desc = false; $cls = ''; if ($this->info($bk_file, $post_id)) { $curr_status = __('(optm)', 'litespeed-cache'); $desc = __('Currently using optimized version of file.', 'litespeed-cache') . ' ' . __('Click to switch to original (unoptimized) version.', 'litespeed-cache'); } elseif ($this->info($bk_optm_file, $post_id)) { $cls .= ' litespeed-warning'; $curr_status = __('(non-optm)', 'litespeed-cache'); $desc = __('Currently using original (unoptimized) version of file.', 'litespeed-cache') . ' ' . __('Click to switch to optimized version.', 'litespeed-cache'); } echo GUI::pie_tiny( $percent, 24, sprintf(__('Original file reduced by %1$s (%2$s)', 'litespeed-cache'), $percent . '%', Utility::real_size($size_meta['ori_saved'])), 'left' ); echo sprintf(__('Orig saved %s', 'litespeed-cache'), $percent . '%'); if ($desc) { echo sprintf( ' <a href="%1$s" class="litespeed-media-href %2$s" data-balloon-pos="left" data-balloon-break aria-label="%3$s">%4$s</a>', $link, $cls, $desc, $curr_status ); } else { echo sprintf( ' <span class="litespeed-desc" data-balloon-pos="left" data-balloon-break aria-label="%1$s">%2$s</span>', __('Using optimized version of file. ', 'litespeed-cache') . ' ' . __('No backup of original file exists.', 'litespeed-cache'), __('(optm)', 'litespeed-cache') ); } } elseif ($size_meta && $size_meta['ori_saved'] === 0) { echo GUI::pie_tiny(0, 24, __('Congratulation! Your file was already optimized', 'litespeed-cache'), 'left'); echo sprintf(__('Orig %s', 'litespeed-cache'), '<span class="litespeed-desc">' . __('(no savings)', 'litespeed-cache') . '</span>'); } else { echo __('Orig', 'litespeed-cache') . '<span class="litespeed-left10">—</span>'; } echo '</p>'; echo '<p>'; // WebP info if ($size_meta && !empty($size_meta['webp_saved'])) { $percent = ceil(($size_meta['webp_saved'] * 100) / $size_meta['webp_total']); $link = Utility::build_url(Router::ACTION_IMG_OPTM, 'webp' . $post_id); $desc = false; $cls = ''; if ($this->info($short_path . '.webp', $post_id)) { $curr_status = __('(optm)', 'litespeed-cache'); $desc = __('Currently using optimized version of WebP file.', 'litespeed-cache') . ' ' . __('Click to switch to original (unoptimized) version.', 'litespeed-cache'); } elseif ($this->info($short_path . '.optm.webp', $post_id)) { $cls .= ' litespeed-warning'; $curr_status = __('(non-optm)', 'litespeed-cache'); $desc = __('Currently using original (unoptimized) version of WebP file.', 'litespeed-cache') . ' ' . __('Click to switch to optimized version.', 'litespeed-cache'); } echo GUI::pie_tiny( $percent, 24, sprintf(__('WebP file reduced by %1$s (%2$s)', 'litespeed-cache'), $percent . '%', Utility::real_size($size_meta['webp_saved'])), 'left' ); echo sprintf(__('WebP saved %s', 'litespeed-cache'), $percent . '%'); if ($desc) { echo sprintf( ' <a href="%1$s" class="litespeed-media-href %2$s" data-balloon-pos="left" data-balloon-break aria-label="%3$s">%4$s</a>', $link, $cls, $desc, $curr_status ); } else { echo sprintf( ' <span class="litespeed-desc" data-balloon-pos="left" data-balloon-break aria-label="%1$s">%2$s</span>', __('Using optimized version of file. ', 'litespeed-cache') . ' ' . __('No backup of unoptimized WebP file exists.', 'litespeed-cache'), __('(optm)', 'litespeed-cache') ); } } else { echo __('WebP', 'litespeed-cache') . '<span class="litespeed-left10">—</span>'; } echo '</p>'; // Delete row btn if ($size_meta) { echo sprintf( '<div class="row-actions"><span class="delete"><a href="%1$s" class="">%2$s</a></span></div>', Utility::build_url(Router::ACTION_IMG_OPTM, Img_Optm::TYPE_RESET_ROW, false, null, array('id' => $post_id)), __('Restore from backup', 'litespeed-cache') ); echo '</div>'; } } /** * Get wp size info * * NOTE: this is not used because it has to be after admin_init * * @since 1.6.2 * @return array $sizes Data for all currently-registered image sizes. */ public function get_image_sizes() { global $_wp_additional_image_sizes; $sizes = array(); foreach (get_intermediate_image_sizes() as $_size) { if (in_array($_size, array('thumbnail', 'medium', 'medium_large', 'large'))) { $sizes[$_size]['width'] = get_option($_size . '_size_w'); $sizes[$_size]['height'] = get_option($_size . '_size_h'); $sizes[$_size]['crop'] = (bool) get_option($_size . '_crop'); } elseif (isset($_wp_additional_image_sizes[$_size])) { $sizes[$_size] = array( 'width' => $_wp_additional_image_sizes[$_size]['width'], 'height' => $_wp_additional_image_sizes[$_size]['height'], 'crop' => $_wp_additional_image_sizes[$_size]['crop'], ); } } return $sizes; } /** * Exclude role from optimization filter * * @since 1.6.2 * @access public */ public function webp_support() { if (!empty($_SERVER['HTTP_ACCEPT']) && strpos($_SERVER['HTTP_ACCEPT'], 'image/webp') !== false) { return true; } if (!empty($_SERVER['HTTP_USER_AGENT'])) { $user_agents = array('chrome-lighthouse', 'googlebot', 'page speed'); foreach ($user_agents as $user_agent) { if (stripos($_SERVER['HTTP_USER_AGENT'], $user_agent) !== false) { return true; } } if (preg_match('/iPhone OS (\d+)_/i', $_SERVER['HTTP_USER_AGENT'], $matches)) { $lscwp_ios_version = $matches[1]; if ($lscwp_ios_version >= 14) { return true; } } } return false; } /** * Run lazy load process * NOTE: As this is after cache finalized, can NOT set any cache control anymore * * Only do for main page. Do NOT do for esi or dynamic content. * * @since 1.4 * @access public * @return string The buffer */ public function finalize($content) { if (defined('LITESPEED_NO_LAZY')) { Debug2::debug2('[Media] bypass: NO_LAZY const'); return $content; } if (!defined('LITESPEED_IS_HTML')) { Debug2::debug2('[Media] bypass: Not frontend HTML type'); return $content; } if (!Control::is_cacheable()) { self::debug('bypass: Not cacheable'); return $content; } self::debug('finalize'); $this->content = $content; $this->_finalize(); return $this->content; } /** * Run lazyload replacement for images in buffer * * @since 1.4 * @access private */ private function _finalize() { /** * Use webp for optimized images * @since 1.6.2 */ if ((defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_IMG_OPTM_WEBP)) && $this->webp_support()) { $this->content = $this->_replace_buffer_img_webp($this->content); } /** * Check if URI is excluded * @since 3.0 */ $excludes = $this->conf(Base::O_MEDIA_LAZY_URI_EXC); if (!defined('LITESPEED_GUEST_OPTM')) { $result = Utility::str_hit_array($_SERVER['REQUEST_URI'], $excludes); if ($result) { self::debug('bypass lazyload: hit URI Excludes setting: ' . $result); return; } } $cfg_lazy = (defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_MEDIA_LAZY)) && !$this->cls('Metabox')->setting('litespeed_no_image_lazy'); $cfg_iframe_lazy = defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_MEDIA_IFRAME_LAZY); $cfg_js_delay = defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_OPTM_JS_DEFER) == 2; $cfg_trim_noscript = defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_OPTM_NOSCRIPT_RM); $cfg_vpi = defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_MEDIA_VPI); if ($cfg_lazy) { if ($cfg_vpi) { add_filter('litespeed_media_lazy_img_excludes', array($this->cls('Metabox'), 'lazy_img_excludes')); } list($src_list, $html_list, $placeholder_list) = $this->_parse_img(); $html_list_ori = $html_list; } else { self::debug('lazyload disabled'); } // image lazy load if ($cfg_lazy) { $__placeholder = Placeholder::cls(); foreach ($html_list as $k => $v) { $size = $placeholder_list[$k]; $src = $src_list[$k]; $html_list[$k] = $__placeholder->replace($v, $src, $size); } } if ($cfg_lazy) { $this->content = str_replace($html_list_ori, $html_list, $this->content); } // iframe lazy load if ($cfg_iframe_lazy) { $html_list = $this->_parse_iframe(); $html_list_ori = $html_list; foreach ($html_list as $k => $v) { $snippet = $cfg_trim_noscript ? '' : '<noscript>' . $v . '</noscript>'; if ($cfg_js_delay) { $v = str_replace(' src=', ' data-litespeed-src=', $v); } else { $v = str_replace(' src=', ' data-src=', $v); } $v = str_replace('<iframe ', '<iframe data-lazyloaded="1" src="about:blank" ', $v); $snippet = $v . $snippet; $html_list[$k] = $snippet; } $this->content = str_replace($html_list_ori, $html_list, $this->content); } // Include lazyload lib js and init lazyload if ($cfg_lazy || $cfg_iframe_lazy) { $lazy_lib = '<script data-no-optimize="1">' . File::read(LSCWP_DIR . self::LIB_FILE_IMG_LAZYLOAD) . '</script>'; $this->content = str_replace('</body>', $lazy_lib . '</body>', $this->content); } } /** * Parse img src * * @since 1.4 * @access private * @return array All the src & related raw html list */ private function _parse_img() { /** * Exclude list * @since 1.5 * @since 2.7.1 Changed to array */ $excludes = apply_filters('litespeed_media_lazy_img_excludes', $this->conf(Base::O_MEDIA_LAZY_EXC)); $cls_excludes = apply_filters('litespeed_media_lazy_img_cls_excludes', $this->conf(Base::O_MEDIA_LAZY_CLS_EXC)); $cls_excludes[] = 'skip-lazy'; // https://core.trac.wordpress.org/ticket/44427 $src_list = array(); $html_list = array(); $placeholder_list = array(); $content = preg_replace(array('#<!--.*-->#sU', '#<noscript([^>]*)>.*</noscript>#isU'), '', $this->content); /** * Exclude parent classes * @since 3.0 */ $parent_cls_exc = apply_filters('litespeed_media_lazy_img_parent_cls_excludes', $this->conf(Base::O_MEDIA_LAZY_PARENT_CLS_EXC)); if ($parent_cls_exc) { Debug2::debug2('[Media] Lazyload Class excludes', $parent_cls_exc); foreach ($parent_cls_exc as $v) { $content = preg_replace('#<(\w+) [^>]*class=(\'|")[^\'"]*' . preg_quote($v, '#') . '[^\'"]*\2[^>]*>.*</\1>#sU', '', $content); } } preg_match_all('#<img\s+([^>]+)/?>#isU', $content, $matches, PREG_SET_ORDER); foreach ($matches as $match) { $attrs = Utility::parse_attr($match[1]); if (empty($attrs['src'])) { continue; } /** * Add src validation to bypass base64 img src * @since 1.6 */ if (strpos($attrs['src'], 'base64') !== false || substr($attrs['src'], 0, 5) === 'data:') { Debug2::debug2('[Media] lazyload bypassed base64 img'); continue; } Debug2::debug2('[Media] lazyload found: ' . $attrs['src']); if ( !empty($attrs['data-no-lazy']) || !empty($attrs['data-skip-lazy']) || !empty($attrs['data-lazyloaded']) || !empty($attrs['data-src']) || !empty($attrs['data-srcset']) ) { Debug2::debug2('[Media] bypassed'); continue; } if (!empty($attrs['class']) && ($hit = Utility::str_hit_array($attrs['class'], $cls_excludes))) { Debug2::debug2('[Media] lazyload image cls excludes [hit] ' . $hit); continue; } /** * Exclude from lazyload by setting * @since 1.5 */ if ($excludes && Utility::str_hit_array($attrs['src'], $excludes)) { Debug2::debug2('[Media] lazyload image exclude ' . $attrs['src']); continue; } /** * Excldues invalid image src from buddypress avatar crop * @see https://wordpress.org/support/topic/lazy-load-breaking-buddypress-upload-avatar-feature * @since 3.0 */ if (strpos($attrs['src'], '{') !== false) { Debug2::debug2('[Media] image src has {} ' . $attrs['src']); continue; } // to avoid multiple replacement if (in_array($match[0], $html_list)) { continue; } // Add missing dimensions if (defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_MEDIA_ADD_MISSING_SIZES)) { if (!apply_filters('litespeed_media_add_missing_sizes', true)) { Debug2::debug2('[Media] add_missing_sizes bypassed via litespeed_media_add_missing_sizes filter'); } elseif (empty($attrs['width']) || $attrs['width'] == 'auto' || empty($attrs['height']) || $attrs['height'] == 'auto') { self::debug('⚠️ Missing sizes for image [src] ' . $attrs['src']); $dimensions = $this->_detect_dimensions($attrs['src']); if ($dimensions) { $ori_width = $dimensions[0]; $ori_height = $dimensions[1]; // Calculate height based on width if (!empty($attrs['width']) && $attrs['width'] != 'auto') { $ori_height = intval(($ori_height * $attrs['width']) / $ori_width); } elseif (!empty($attrs['height']) && $attrs['height'] != 'auto') { $ori_width = intval(($ori_width * $attrs['height']) / $ori_height); } $attrs['width'] = $ori_width; $attrs['height'] = $ori_height; $new_html = preg_replace('#\s+(width|height)=(["\'])[^\2]*\2#', '', $match[0]); $new_html = preg_replace('#<img\s+#i', '<img width="' . $attrs['width'] . '" height="' . $attrs['height'] . '" ', $new_html); self::debug('Add missing sizes ' . $attrs['width'] . 'x' . $attrs['height'] . ' to ' . $attrs['src']); $this->content = str_replace($match[0], $new_html, $this->content); $match[0] = $new_html; } } } $placeholder = false; if (!empty($attrs['width']) && $attrs['width'] != 'auto' && !empty($attrs['height']) && $attrs['height'] != 'auto') { $placeholder = $attrs['width'] . 'x' . $attrs['height']; } $src_list[] = $attrs['src']; $html_list[] = $match[0]; $placeholder_list[] = $placeholder; } return array($src_list, $html_list, $placeholder_list); } /** * Detect the original sizes * * @since 4.0 */ private function _detect_dimensions($src) { if ($pathinfo = Utility::is_internal_file($src)) { $src = $pathinfo[0]; } elseif (apply_filters('litespeed_media_ignore_remote_missing_sizes', false)) { return false; } if (substr($src, 0, 2) == '//') { $src = 'https:' . $src; } $sizes = getimagesize($src); if (!empty($sizes[0]) && !empty($sizes[1])) { return $sizes; } return false; } /** * Parse iframe src * * @since 1.4 * @access private * @return array All the src & related raw html list */ private function _parse_iframe() { $cls_excludes = apply_filters('litespeed_media_iframe_lazy_cls_excludes', $this->conf(Base::O_MEDIA_IFRAME_LAZY_CLS_EXC)); $cls_excludes[] = 'skip-lazy'; // https://core.trac.wordpress.org/ticket/44427 $html_list = array(); $content = preg_replace('#<!--.*-->#sU', '', $this->content); /** * Exclude parent classes * @since 3.0 */ $parent_cls_exc = apply_filters('litespeed_media_iframe_lazy_parent_cls_excludes', $this->conf(Base::O_MEDIA_IFRAME_LAZY_PARENT_CLS_EXC)); if ($parent_cls_exc) { Debug2::debug2('[Media] Iframe Lazyload Class excludes', $parent_cls_exc); foreach ($parent_cls_exc as $v) { $content = preg_replace('#<(\w+) [^>]*class=(\'|")[^\'"]*' . preg_quote($v, '#') . '[^\'"]*\2[^>]*>.*</\1>#sU', '', $content); } } preg_match_all('#<iframe \s*([^>]+)></iframe>#isU', $content, $matches, PREG_SET_ORDER); foreach ($matches as $match) { $attrs = Utility::parse_attr($match[1]); if (empty($attrs['src'])) { continue; } Debug2::debug2('[Media] found iframe: ' . $attrs['src']); if (!empty($attrs['data-no-lazy']) || !empty($attrs['data-skip-lazy']) || !empty($attrs['data-lazyloaded']) || !empty($attrs['data-src'])) { Debug2::debug2('[Media] bypassed'); continue; } if (!empty($attrs['class']) && ($hit = Utility::str_hit_array($attrs['class'], $cls_excludes))) { Debug2::debug2('[Media] iframe lazyload cls excludes [hit] ' . $hit); continue; } if (apply_filters('litespeed_iframe_lazyload_exc', false, $attrs['src'])) { Debug2::debug2('[Media] bypassed by filter'); continue; } // to avoid multiple replacement if (in_array($match[0], $html_list)) { continue; } $html_list[] = $match[0]; } return $html_list; } /** * Replace image src to webp * * @since 1.6.2 * @access private */ private function _replace_buffer_img_webp($content) { /** * Added custom element & attribute support * @since 2.2.2 */ $webp_ele_to_check = $this->conf(Base::O_IMG_OPTM_WEBP_ATTR); foreach ($webp_ele_to_check as $v) { if (!$v || strpos($v, '.') === false) { Debug2::debug2('[Media] buffer_webp no . attribute ' . $v); continue; } Debug2::debug2('[Media] buffer_webp attribute ' . $v); $v = explode('.', $v); $attr = preg_quote($v[1], '#'); if ($v[0]) { $pattern = '#<' . preg_quote($v[0], '#') . '([^>]+)' . $attr . '=([\'"])(.+)\2#iU'; } else { $pattern = '# ' . $attr . '=([\'"])(.+)\1#iU'; } preg_match_all($pattern, $content, $matches); foreach ($matches[$v[0] ? 3 : 2] as $k2 => $url) { // Check if is a DATA-URI if (strpos($url, 'data:image') !== false) { continue; } if (!($url2 = $this->replace_webp($url))) { continue; } if ($v[0]) { $html_snippet = sprintf('<' . $v[0] . '%1$s' . $v[1] . '=%2$s', $matches[1][$k2], $matches[2][$k2] . $url2 . $matches[2][$k2]); } else { $html_snippet = sprintf(' ' . $v[1] . '=%1$s', $matches[1][$k2] . $url2 . $matches[1][$k2]); } $content = str_replace($matches[0][$k2], $html_snippet, $content); } } // parse srcset // todo: should apply this to cdn too if ((defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_IMG_OPTM_WEBP_REPLACE_SRCSET)) && $this->webp_support()) { $content = Utility::srcset_replace($content, array($this, 'replace_webp')); } // Replace background-image if ((defined('LITESPEED_GUEST_OPTM') || $this->conf(Base::O_IMG_OPTM_WEBP)) && $this->webp_support()) { $content = $this->replace_background_webp($content); } return $content; } /** * Replace background image * * @since 4.0 */ public function replace_background_webp($content) { Debug2::debug2('[Media] Start replacing bakcground WebP.'); // preg_match_all( '#background-image:(\s*)url\((.*)\)#iU', $content, $matches ); preg_match_all('#url\(([^)]+)\)#iU', $content, $matches); foreach ($matches[1] as $k => $url) { // Check if is a DATA-URI if (strpos($url, 'data:image') !== false) { continue; } /** * Support quotes in src `background-image: url('src')` * @since 2.9.3 */ $url = trim($url, '\'"'); // Fix Elementors Slideshow unusal background images like style="background-image: url("https://xxxx.png");" if (strpos($url, '"') === 0 && substr($url, -6) == '"') { $url = substr($url, 6, -6); } if (!($url2 = $this->replace_webp($url))) { continue; } // $html_snippet = sprintf( 'background-image:%1$surl(%2$s)', $matches[ 1 ][ $k ], $url2 ); $html_snippet = str_replace($url, $url2, $matches[0][$k]); $content = str_replace($matches[0][$k], $html_snippet, $content); } return $content; } /** * Replace internal image src to webp * * @since 1.6.2 * @access public */ public function replace_webp($url) { Debug2::debug2('[Media] webp replacing: ' . substr($url, 0, 200)); if (substr($url, -5) == '.webp') { Debug2::debug2('[Media] already webp'); return false; } /** * WebP API hook * NOTE: As $url may contain query strings, WebP check will need to parse_url before appending .webp * @since 2.9.5 * @see #751737 - API docs for WebP generation */ if (apply_filters('litespeed_media_check_ori', Utility::is_internal_file($url), $url)) { // check if has webp file if (apply_filters('litespeed_media_check_webp', Utility::is_internal_file($url, 'webp'), $url)) { $url .= '.webp'; } else { Debug2::debug2('[Media] -no WebP file, bypassed'); return false; } } else { Debug2::debug2('[Media] -no file, bypassed'); return false; } Debug2::debug2('[Media] - replaced to: ' . $url); return $url; } /** * Hook to wp_get_attachment_image_src * * @since 1.6.2 * @access public * @param array $img The URL of the attachment image src, the width, the height * @return array */ public function webp_attach_img_src($img) { Debug2::debug2('[Media] changing attach src: ' . $img[0]); if ($img && ($url = $this->replace_webp($img[0]))) { $img[0] = $url; } return $img; } /** * Try to replace img url * * @since 1.6.2 * @access public * @param string $url * @return string */ public function webp_url($url) { if ($url && ($url2 = $this->replace_webp($url))) { $url = $url2; } return $url; } /** * Hook to replace WP responsive images * * @since 1.6.2 * @access public * @param array $srcs * @return array */ public function webp_srcset($srcs) { if ($srcs) { foreach ($srcs as $w => $data) { if (!($url = $this->replace_webp($data['url']))) { continue; } $srcs[$w]['url'] = $url; } } return $srcs; } }