golden hour

/home/godaofbq/elitehyperbarics.com/wp-content/plugins/litespeed-cache/src

File/Folder	Size	Actions
activation.cls.php	14.99 KB
admin-display.cls.php	33.22 KB
admin-settings.cls.php	9.52 KB
admin.cls.php	4.44 KB
api.cls.php	11.08 KB
avatar.cls.php	6.06 KB
base.cls.php	30.23 KB
cdn	-
cdn-setup.cls.php	10.45 KB
cdn.cls.php	13.13 KB
cloud.cls.php	42.48 KB
conf.cls.php	18.58 KB
control.cls.php	21.75 KB
core.cls.php	20.05 KB
crawler-map.cls.php	14 KB
crawler.cls.php	34.69 KB
css.cls.php	13.1 KB
data.cls.php	17.41 KB
data.upgrade.func.php	21.37 KB
data_structure	-
db-optm.cls.php	9.58 KB
debug2.cls.php	13.1 KB
doc.cls.php	4.74 KB
error.cls.php	6.91 KB
esi.cls.php	26.91 KB
file.cls.php	10.13 KB
gui.cls.php	27.45 KB
health.cls.php	2.89 KB
htaccess.cls.php	23.95 KB
img-optm.cls.php	60.24 KB
import.cls.php	4.15 KB
instance.cls.php	154 B
lang.cls.php	15.47 KB
localization.cls.php	3.38 KB
media.cls.php	31.08 KB
metabox.cls.php	4.21 KB
object-cache.cls.php	15.92 KB
object.lib.php	33.97 KB
optimize.cls.php	36.67 KB
optimizer.cls.php	9.02 KB
placeholder.cls.php	14.15 KB
preset.cls.php	5.43 KB
purge.cls.php	29.79 KB
report.cls.php	5.33 KB
rest.cls.php	7.87 KB
root.cls.php	12.6 KB
router.cls.php	19.08 KB
str.cls.php	1.37 KB
tag.cls.php	8.62 KB
task.cls.php	5.83 KB
tool.cls.php	3.29 KB
ucss.cls.php	14.39 KB
utility.cls.php	20.63 KB
vary.cls.php	19.17 KB
vpi.cls.php	7.41 KB

Edit: placeholder.cls.php

<?php

/**
 * The PlaceHolder class
 *
 * @since 		3.0
 * @package    	LiteSpeed
 * @subpackage 	LiteSpeed/inc
 * @author     	LiteSpeed Technologies <info@litespeedtech.com>
 */

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('litspeed_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
		if (substr($src, -5) === '.webp') {
			$src = substr($src, 0, -5);
		}

$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' => $height,
				'url' => substr($src, -5) === '.webp' ? substr($src, 0, -5) : $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();
	}
}