GOLDEN HOUR

DIR: /home/vlabbdco/public_html/wp-content/plugins/litespeed-cache/src

Name	Size	Action
activation.cls.php	15.06 KB
admin-display.cls.php	33.69 KB
admin-settings.cls.php	9.15 KB
admin.cls.php	5.2 KB
api.cls.php	11.28 KB
avatar.cls.php	6.26 KB
base.cls.php	30.85 KB
[ cdn ]	-
cdn-setup.cls.php	9.63 KB
cdn.cls.php	13.52 KB
cloud.cls.php	38.96 KB
conf.cls.php	18.83 KB
control.cls.php	20.35 KB
core.cls.php	17.39 KB
crawler-map.cls.php	13.42 KB
crawler.cls.php	30.77 KB
css.cls.php	13.02 KB
data.cls.php	16.52 KB
data.upgrade.func.php	21.85 KB
[ data_structure ]	-
db-optm.cls.php	8.66 KB
debug2.cls.php	11.98 KB
doc.cls.php	3.54 KB
error.cls.php	6.38 KB
esi.cls.php	26.45 KB
file.cls.php	10.47 KB
gui.cls.php	27.87 KB
health.cls.php	3 KB
htaccess.cls.php	24.34 KB
img-optm.cls.php	55.77 KB
import.cls.php	4.32 KB
instance.cls.php	153 B
lang.cls.php	16.6 KB
localization.cls.php	3.53 KB
media.cls.php	27.13 KB
metabox.cls.php	3.94 KB
object-cache.cls.php	15.82 KB
object.lib.php	14.43 KB
optimize.cls.php	34.61 KB
optimizer.cls.php	8.82 KB
placeholder.cls.php	14.5 KB
purge.cls.php	29.84 KB
report.cls.php	5.43 KB
rest.cls.php	7.52 KB
root.cls.php	12.88 KB
router.cls.php	17.7 KB
str.cls.php	1.18 KB
tag.cls.php	8.78 KB
task.cls.php	4.41 KB
tool.cls.php	3.41 KB
ucss.cls.php	13.36 KB
utility.cls.php	21.15 KB
vary.cls.php	19.44 KB
vpi.cls.php	7.44 KB

Edit: media.cls.php

<?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_REPLACE ) ) {
			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 );
	}

/**
	 * 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 ) {
		$real_file = $this->_wp_upload_dir[ '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' ) . '&#10;' . __( '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' ) . '&#10;' . __( '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' ) . '&#10;' . __( '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' ) . '&#10;' . __( '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' ) . '&#10;' . __( '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' ) . '&#10;' . __( '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' ] ) ) {
			if ( strpos( $_SERVER[ 'HTTP_USER_AGENT' ], 'Page Speed' ) !== 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_REPLACE ) ) && $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" defer>' . 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 ( 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( '#(width|height)=(["\'])[^\2]*\2#', '', $match[ 0 ] );
						$new_html = str_replace( '<img ', '<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_REPLACE ) ) && $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, '\'"' );

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;
	}

}

GOLDEN HOUR

Edit: media.cls.php

TERMINAL