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/home/sitetest/makie/homedir/public_html/wp-content/plugins/litespeed-cache/src

Name	Size	Mode	Actions
cdn/	-	0755	rm
data_structure/	-	0755	rm
activation.cls.php	17855	0644	edit dl rm
admin-display.cls.php	49274	0644	edit dl rm
admin-settings.cls.php	11383	0644	edit dl rm
admin.cls.php	5167	0644	edit dl rm
api.cls.php	10687	0644	edit dl rm
avatar.cls.php	8890	0644	edit dl rm
base.cls.php	35410	0644	edit dl rm
cdn.cls.php	16300	0644	edit dl rm
cloud.cls.php	67375	0644	edit dl rm
conf.cls.php	19999	0644	edit dl rm
control.cls.php	24933	0644	edit dl rm
core.cls.php	21519	0644	edit dl rm
crawler-map.cls.php	19894	0644	edit dl rm
crawler.cls.php	43208	0644	edit dl rm
css.cls.php	15637	0644	edit dl rm
data.cls.php	16886	0644	edit dl rm
data.upgrade.func.php	3147	0644	edit dl rm
db-optm.cls.php	10589	0644	edit dl rm
debug2.cls.php	14510	0644	edit dl rm
doc.cls.php	4164	0644	edit dl rm
error.cls.php	7560	0644	edit dl rm
esi.cls.php	27834	0644	edit dl rm
file.cls.php	10823	0644	edit dl rm
gui.cls.php	37379	0644	edit dl rm
health.cls.php	2899	0644	edit dl rm
htaccess.cls.php	24578	0644	edit dl rm
img-optm.cls.php	66693	0644	edit dl rm
import.cls.php	4395	0644	edit dl rm
import.preset.cls.php	5633	0644	edit dl rm
lang.cls.php	15421	0644	edit dl rm
localization.cls.php	3522	0644	edit dl rm
media.cls.php	41337	0644	edit dl rm
metabox.cls.php	5444	0644	edit dl rm
object-cache-wp.cls.php	25259	0644	edit dl rm
object-cache.cls.php	20788	0644	edit dl rm
object.lib.php	13629	0644	edit dl rm
optimize.cls.php	39591	0644	edit dl rm
optimizer.cls.php	9640	0644	edit dl rm
placeholder.cls.php	14527	0644	edit dl rm
purge.cls.php	34765	0644	edit dl rm
report.cls.php	6266	0644	edit dl rm
rest.cls.php	8844	0644	edit dl rm
root.cls.php	14323	0644	edit dl rm
router.cls.php	21062	0644	edit dl rm
str.cls.php	3226	0644	edit dl rm
tag.cls.php	9481	0644	edit dl rm
task.cls.php	6279	0644	edit dl rm
tool.cls.php	4318	0644	edit dl rm
ucss.cls.php	14719	0644	edit dl rm
utility.cls.php	22285	0644	edit dl rm
vary.cls.php	20686	0644	edit dl rm
vpi.cls.php	9588	0644	edit dl rm

Edit: /home/sitetest/makie/homedir/public_html/wp-content/plugins/litespeed-cache/src/placeholder.cls.php (14527B)

<?php
// phpcs:ignoreFile

/**
 * The PlaceHolder class
 *
 * @since       3.0
 * @package     LiteSpeed
 */

namespace LiteSpeed;

defined('WPINC') || exit();

class Placeholder extends Base {

const TYPE_GENERATE = 'generate';
	const TYPE_CLEAR_Q  = 'clear_q';

private $_conf_placeholder_resp;
	private $_conf_placeholder_resp_svg;
	private $_conf_lqip;
	private $_conf_lqip_qual;
	private $_conf_lqip_min_w;
	private $_conf_lqip_min_h;
	private $_conf_placeholder_resp_color;
	private $_conf_placeholder_resp_async;
	private $_conf_ph_default;
	private $_placeholder_resp_dict = array();
	private $_ph_queue              = array();

protected $_summary;

/**
	 * Init
	 *
	 * @since  3.0
	 */
	public function __construct() {
		$this->_conf_placeholder_resp       = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_MEDIA_PLACEHOLDER_RESP);
		$this->_conf_placeholder_resp_svg   = $this->conf(self::O_MEDIA_PLACEHOLDER_RESP_SVG);
		$this->_conf_lqip                   = !defined('LITESPEED_GUEST_OPTM') && $this->conf(self::O_MEDIA_LQIP);
		$this->_conf_lqip_qual              = $this->conf(self::O_MEDIA_LQIP_QUAL);
		$this->_conf_lqip_min_w             = $this->conf(self::O_MEDIA_LQIP_MIN_W);
		$this->_conf_lqip_min_h             = $this->conf(self::O_MEDIA_LQIP_MIN_H);
		$this->_conf_placeholder_resp_async = $this->conf(self::O_MEDIA_PLACEHOLDER_RESP_ASYNC);
		$this->_conf_placeholder_resp_color = $this->conf(self::O_MEDIA_PLACEHOLDER_RESP_COLOR);
		$this->_conf_ph_default             = $this->conf(self::O_MEDIA_LAZY_PLACEHOLDER) ?: LITESPEED_PLACEHOLDER;

$this->_summary = self::get_summary();
	}

/**
	 * Init Placeholder
	 */
	public function init() {
		Debug2::debug2('[LQIP] init');

add_action('litespeed_after_admin_init', array( $this, 'after_admin_init' ));
	}

/**
	 * Display column in Media
	 *
	 * @since  3.0
	 * @access public
	 */
	public function after_admin_init() {
		if ($this->_conf_lqip) {
			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_lqip', array( $this, 'media_row_con' ));
		}
	}

/**
	 * Media Admin Menu -> LQIP col
	 *
	 * @since 3.0
	 * @access public
	 */
	public function media_row_title( $posts_columns ) {
		$posts_columns['lqip'] = __('LQIP', 'litespeed-cache');

return $posts_columns;
	}

/**
	 * Media Admin Menu -> LQIP Column
	 *
	 * @since 3.0
	 * @access public
	 */
	public function media_row_actions( $column_name, $post_id ) {
		if ($column_name !== 'lqip') {
			return;
		}

do_action('litespeed_media_row_lqip', $post_id);
	}

/**
	 * Display LQIP column
	 *
	 * @since  3.0
	 * @access public
	 */
	public function media_row_con( $post_id ) {
		$meta_value = wp_get_attachment_metadata($post_id);

if (empty($meta_value['file'])) {
			return;
		}

$total_files = 0;

// List all sizes
		$all_sizes = array( $meta_value['file'] );
		$size_path = pathinfo($meta_value['file'], PATHINFO_DIRNAME) . '/';
		foreach ($meta_value['sizes'] as $v) {
			$all_sizes[] = $size_path . $v['file'];
		}

foreach ($all_sizes as $short_path) {
			$lqip_folder = LITESPEED_STATIC_DIR . '/lqip/' . $short_path;

if (is_dir($lqip_folder)) {
				Debug2::debug('[LQIP] Found folder: ' . $short_path);

// List all files
				foreach (scandir($lqip_folder) as $v) {
					if ($v == '.' || $v == '..') {
						continue;
					}

if ($total_files == 0) {
						echo '<div class="litespeed-media-lqip"><img src="' .
							Str::trim_quotes(File::read($lqip_folder . '/' . $v)) .
							'" alt="' .
							sprintf(__('LQIP image preview for size %s', 'litespeed-cache'), $v) .
							'"></div>';
					}

echo '<div class="litespeed-media-size"><a href="' . Str::trim_quotes(File::read($lqip_folder . '/' . $v)) . '" target="_blank">' . $v . '</a></div>';

++$total_files;
				}
			}
		}

if ($total_files == 0) {
			echo '—';
		}
	}

/**
	 * Replace image with placeholder
	 *
	 * @since  3.0
	 * @access public
	 */
	public function replace( $html, $src, $size ) {
		// Check if need to enable responsive placeholder or not
		$this_placeholder = $this->_placeholder($src, $size) ?: $this->_conf_ph_default;

$additional_attr = '';
		if ($this->_conf_lqip && $this_placeholder != $this->_conf_ph_default) {
			Debug2::debug2('[LQIP] Use resp LQIP [size] ' . $size);
			$additional_attr = ' data-placeholder-resp="' . Str::trim_quotes($size) . '"';
		}

$snippet = defined('LITESPEED_GUEST_OPTM') || $this->conf(self::O_OPTM_NOSCRIPT_RM) ? '' : '<noscript>' . $html . '</noscript>';
		$html    = str_replace(array( ' src=', ' srcset=', ' sizes=' ), array( ' data-src=', ' data-srcset=', ' data-sizes=' ), $html);
		$html    = str_replace('<img ', '<img data-lazyloaded="1"' . $additional_attr . ' src="' . Str::trim_quotes($this_placeholder) . '" ', $html);
		$snippet = $html . $snippet;

return $snippet;
	}

/**
	 * Generate responsive placeholder
	 *
	 * @since  2.5.1
	 * @access private
	 */
	private function _placeholder( $src, $size ) {
		// Low Quality Image Placeholders
		if (!$size) {
			Debug2::debug2('[LQIP] no size ' . $src);
			return false;
		}

if (!$this->_conf_placeholder_resp) {
			return false;
		}

// If use local generator
		if (!$this->_conf_lqip || !$this->_lqip_size_check($size)) {
			return $this->_generate_placeholder_locally($size);
		}

Debug2::debug2('[LQIP] Resp LQIP process [src] ' . $src . ' [size] ' . $size);

$arr_key = $size . ' ' . $src;

// Check if its already in dict or not
		if (!empty($this->_placeholder_resp_dict[$arr_key])) {
			Debug2::debug2('[LQIP] already in dict');

return $this->_placeholder_resp_dict[$arr_key];
		}

// Need to generate the responsive placeholder
		$placeholder_realpath = $this->_placeholder_realpath($src, $size); // todo: give offload API
		if (file_exists($placeholder_realpath)) {
			Debug2::debug2('[LQIP] file exists');
			$this->_placeholder_resp_dict[$arr_key] = File::read($placeholder_realpath);

return $this->_placeholder_resp_dict[$arr_key];
		}

// Add to cron queue

// Prevent repeated requests
		if (in_array($arr_key, $this->_ph_queue)) {
			Debug2::debug2('[LQIP] file bypass generating due to in queue');
			return $this->_generate_placeholder_locally($size);
		}

if ($hit = Utility::str_hit_array($src, $this->conf(self::O_MEDIA_LQIP_EXC))) {
			Debug2::debug2('[LQIP] file bypass generating due to exclude setting [hit] ' . $hit);
			return $this->_generate_placeholder_locally($size);
		}

$this->_ph_queue[] = $arr_key;

// Send request to generate placeholder
		if (!$this->_conf_placeholder_resp_async) {
			// If requested recently, bypass
			if ($this->_summary && !empty($this->_summary['curr_request']) && time() - $this->_summary['curr_request'] < 300) {
				Debug2::debug2('[LQIP] file bypass generating due to interval limit');
				return false;
			}
			// Generate immediately
			$this->_placeholder_resp_dict[$arr_key] = $this->_generate_placeholder($arr_key);

return $this->_placeholder_resp_dict[$arr_key];
		}

// Prepare default svg placeholder as tmp placeholder
		$tmp_placeholder = $this->_generate_placeholder_locally($size);

// Store it to prepare for cron
		$queue = $this->load_queue('lqip');
		if (in_array($arr_key, $queue)) {
			Debug2::debug2('[LQIP] already in queue');

return $tmp_placeholder;
		}

if (count($queue) > 500) {
			Debug2::debug2('[LQIP] queue is full');

return $tmp_placeholder;
		}

$queue[] = $arr_key;
		$this->save_queue('lqip', $queue);
		Debug2::debug('[LQIP] Added placeholder queue');

return $tmp_placeholder;
	}

/**
	 * Generate realpath of placeholder file
	 *
	 * @since  2.5.1
	 * @access private
	 */
	private function _placeholder_realpath( $src, $size ) {
		// Use LQIP Cloud generator, each image placeholder will be separately stored

// Compatibility with WebP and AVIF
		$src = Utility::drop_webp($src);

$filepath_prefix = $this->_build_filepath_prefix('lqip');

// External images will use cache folder directly
		$domain = parse_url($src, PHP_URL_HOST);
		if ($domain && !Utility::internal($domain)) {
			// todo: need to improve `util:internal()` to include `CDN::internal()`
			$md5 = md5($src);

return LITESPEED_STATIC_DIR . $filepath_prefix . 'remote/' . substr($md5, 0, 1) . '/' . substr($md5, 1, 1) . '/' . $md5 . '.' . $size;
		}

// Drop domain
		$short_path = Utility::att_short_path($src);

return LITESPEED_STATIC_DIR . $filepath_prefix . $short_path . '/' . $size;
	}

/**
	 * Cron placeholder generation
	 *
	 * @since  2.5.1
	 * @access public
	 */
	public static function cron( $continue = false ) {
		$_instance = self::cls();

$queue = $_instance->load_queue('lqip');

if (empty($queue)) {
			return;
		}

// For cron, need to check request interval too
		if (!$continue) {
			if (!empty($_instance->_summary['curr_request']) && time() - $_instance->_summary['curr_request'] < 300) {
				Debug2::debug('[LQIP] Last request not done');
				return;
			}
		}

foreach ($queue as $v) {
			Debug2::debug('[LQIP] cron job [size] ' . $v);

$res = $_instance->_generate_placeholder($v, true);

// Exit queue if out of quota
			if ($res === 'out_of_quota') {
				return;
			}

// only request first one
			if (!$continue) {
				return;
			}
		}
	}

/**
	 * Generate placeholder locally
	 *
	 * @since  3.0
	 * @access private
	 */
	private function _generate_placeholder_locally( $size ) {
		Debug2::debug2('[LQIP] _generate_placeholder local [size] ' . $size);

$size = explode('x', $size);

$svg = str_replace(array( '{width}', '{height}', '{color}' ), array( $size[0], $size[1], $this->_conf_placeholder_resp_color ), $this->_conf_placeholder_resp_svg);

return 'data:image/svg+xml;base64,' . base64_encode($svg);
	}

/**
	 * Send to LiteSpeed API to generate placeholder
	 *
	 * @since  2.5.1
	 * @access private
	 */
	private function _generate_placeholder( $raw_size_and_src, $from_cron = false ) {
		// Parse containing size and src info
		$size_and_src = explode(' ', $raw_size_and_src, 2);
		$size         = $size_and_src[0];

if (empty($size_and_src[1])) {
			$this->_popup_and_save($raw_size_and_src);
			Debug2::debug('[LQIP] ❌ No src [raw] ' . $raw_size_and_src);
			return $this->_generate_placeholder_locally($size);
		}

$src = $size_and_src[1];

$file = $this->_placeholder_realpath($src, $size);

// Local generate SVG to serve ( Repeatedly doing this here to remove stored cron queue in case the setting _conf_lqip is changed )
		if (!$this->_conf_lqip || !$this->_lqip_size_check($size)) {
			$data = $this->_generate_placeholder_locally($size);
		} else {
			$err       = false;
			$allowance = Cloud::cls()->allowance(Cloud::SVC_LQIP, $err);
			if (!$allowance) {
				Debug2::debug('[LQIP] ❌ No credit: ' . $err);
				$err && Admin_Display::error(Error::msg($err));

if ($from_cron) {
					return 'out_of_quota';
				}

return $this->_generate_placeholder_locally($size);
			}

// Generate LQIP
			list($width, $height) = explode('x', $size);
			$req_data             = array(
				'width' => $width,
				'height' => $height,
				'url' => Utility::drop_webp($src),
				'quality' => $this->_conf_lqip_qual,
			);

// CHeck if the image is 404 first
			if (File::is_404($req_data['url'])) {
				$this->_popup_and_save($raw_size_and_src, true);
				$this->_append_exc($src);
				Debug2::debug('[LQIP] 404 before request [src] ' . $req_data['url']);
				return $this->_generate_placeholder_locally($size);
			}

// Update request status
			$this->_summary['curr_request'] = time();
			self::save_summary();

$json = Cloud::post(Cloud::SVC_LQIP, $req_data, 120);
			if (!is_array($json)) {
				return $this->_generate_placeholder_locally($size);
			}

if (empty($json['lqip']) || strpos($json['lqip'], 'data:image/svg+xml') !== 0) {
				// image error, pop up the current queue
				$this->_popup_and_save($raw_size_and_src, true);
				$this->_append_exc($src);
				Debug2::debug('[LQIP] wrong response format', $json);

return $this->_generate_placeholder_locally($size);
			}

$data = $json['lqip'];

Debug2::debug('[LQIP] _generate_placeholder LQIP');
		}

// Write to file
		File::save($file, $data, true);

// Save summary data
		$this->_summary['last_spent']   = time() - $this->_summary['curr_request'];
		$this->_summary['last_request'] = $this->_summary['curr_request'];
		$this->_summary['curr_request'] = 0;
		self::save_summary();
		$this->_popup_and_save($raw_size_and_src);

Debug2::debug('[LQIP] saved LQIP ' . $file);

return $data;
	}

/**
	 * Check if the size is valid to send LQIP request or not
	 *
	 * @since  3.0
	 */
	private function _lqip_size_check( $size ) {
		$size = explode('x', $size);
		if ($size[0] >= $this->_conf_lqip_min_w || $size[1] >= $this->_conf_lqip_min_h) {
			return true;
		}

Debug2::debug2('[LQIP] Size too small');

return false;
	}

/**
	 * Add to LQIP exclude list
	 *
	 * @since  3.4
	 */
	private function _append_exc( $src ) {
		$val   = $this->conf(self::O_MEDIA_LQIP_EXC);
		$val[] = $src;
		$this->cls('Conf')->update(self::O_MEDIA_LQIP_EXC, $val);
		Debug2::debug('[LQIP] Appended to LQIP Excludes [URL] ' . $src);
	}

/**
	 * Pop up the current request and save
	 *
	 * @since  3.0
	 */
	private function _popup_and_save( $raw_size_and_src, $append_to_exc = false ) {
		$queue = $this->load_queue('lqip');
		if (!empty($queue) && in_array($raw_size_and_src, $queue)) {
			unset($queue[array_search($raw_size_and_src, $queue)]);
		}

if ($append_to_exc) {
			$size_and_src = explode(' ', $raw_size_and_src, 2);
			$this_src     = $size_and_src[1];

// Append to lqip exc setting first
			$this->_append_exc($this_src);

// Check if other queues contain this src or not
			if ($queue) {
				foreach ($queue as $k => $raw_size_and_src) {
					$size_and_src = explode(' ', $raw_size_and_src, 2);
					if (empty($size_and_src[1])) {
						continue;
					}

if ($size_and_src[1] == $this_src) {
						unset($queue[$k]);
					}
				}
			}
		}

$this->save_queue('lqip', $queue);
	}

/**
	 * Handle all request actions from main cls
	 *
	 * @since  2.5.1
	 * @access public
	 */
	public function handler() {
		$type = Router::verify_type();

switch ($type) {
			case self::TYPE_GENERATE:
            self::cron(true);
				break;

case self::TYPE_CLEAR_Q:
            $this->clear_q('lqip');
				break;

default:
				break;
		}

Admin::redirect();
	}
}

cmd: