WIBUHAX0R1337

- WIBUHAX0R1337 -

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<?php
/**
 * The avatar cache class.
 *
 * Caches remote (e.g., Gravatar) avatars locally and rewrites URLs
 * to serve cached copies with a TTL. Supports on-demand generation
 * during page render and batch generation via cron.
 *
 * @since 3.0
 * @package LiteSpeed
 */

namespace LiteSpeed;

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

/**
 * Class Avatar
 */
class Avatar extends Base {

const TYPE_GENERATE = 'generate';

/**
	 * Avatar cache TTL (seconds).
	 *
	 * @var int
	 */
	private $_conf_cache_ttl;

/**
	 * Avatar DB table name.
	 *
	 * @var string
	 */
	private $_tb;

/**
	 * In-request map from original URL => rewritten URL to avoid duplicates.
	 *
	 * @var array<string,string>
	 */
	private $_avatar_realtime_gen_dict = array();

/**
	 * Summary/status data for last requests.
	 *
	 * @var array<string,mixed>
	 */
	protected $_summary;

/**
	 * Init.
	 *
	 * @since 1.4
	 */
	public function __construct() {
		if ( ! $this->conf( self::O_DISCUSS_AVATAR_CACHE ) ) {
			return;
		}

self::debug2( '[Avatar] init' );

$this->_tb = $this->cls( 'Data' )->tb( 'avatar' );

$this->_conf_cache_ttl = $this->conf( self::O_DISCUSS_AVATAR_CACHE_TTL );

add_filter( 'get_avatar_url', array( $this, 'crawl_avatar' ) );

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

/**
	 * Check whether DB table is needed.
	 *
	 * @since 3.0
	 * @access public
	 * @return bool
	 */
	public function need_db() {
		return (bool) $this->conf( self::O_DISCUSS_AVATAR_CACHE );
	}

/**
	 * Serve static avatar by md5 (used by local static route).
	 *
	 * @since 3.0
	 * @access public
	 * @param string $md5 MD5 hash of original avatar URL.
	 * @return void
	 */
	public function serve_static( $md5 ) {
		global $wpdb;

self::debug( '[Avatar] is avatar request' );

if ( strlen( $md5 ) !== 32 ) {
			self::debug( '[Avatar] wrong md5 ' . $md5 );
			return;
		}

$url = $wpdb->get_var( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
			$wpdb->prepare(
				'SELECT url FROM `' . $this->_tb . '` WHERE md5 = %s', // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
				$md5
			)
		);

if ( ! $url ) {
			self::debug( '[Avatar] no matched url for md5 ' . $md5 );
			return;
		}

$url = $this->_generate( $url );

wp_safe_redirect( $url );
		exit;
	}

/**
	 * Localize/replace avatar URL with cached one (filter callback).
	 *
	 * @since 3.0
	 * @access public
	 * @param string $url Original avatar URL.
	 * @return string Rewritten/cached avatar URL (or original).
	 */
	public function crawl_avatar( $url ) {
		if ( ! $url ) {
			return $url;
		}

// Check if already generated in this request.
		if ( ! empty( $this->_avatar_realtime_gen_dict[ $url ] ) ) {
			self::debug2( '[Avatar] already in dict [url] ' . $url );
			return $this->_avatar_realtime_gen_dict[ $url ];
		}

$realpath = $this->_realpath( $url );
		$mtime    = file_exists( $realpath ) ? filemtime( $realpath ) : false;

if ( $mtime && time() - $mtime <= $this->_conf_cache_ttl ) {
			self::debug2( '[Avatar] cache file exists [url] ' . $url );
			return $this->_rewrite( $url, $mtime );
		}

// Only handle gravatar or known remote avatar providers; keep generic check for "gravatar.com".
		if ( strpos( $url, 'gravatar.com' ) === false ) {
			return $url;
		}

// Throttle generation.
		if ( ! empty( $this->_summary['curr_request'] ) && time() - $this->_summary['curr_request'] < 300 ) {
			self::debug2( '[Avatar] Bypass generating due to interval limit [url] ' . $url );
			return $url;
		}

// Generate immediately and track for this request.
		$this->_avatar_realtime_gen_dict[ $url ] = $this->_generate( $url );

return $this->_avatar_realtime_gen_dict[ $url ];
	}

/**
	 * Count queued avatars (expired ones) for cron.
	 *
	 * @since 3.0
	 * @access public
	 * @return int|false
	 */
	public function queue_count() {
		global $wpdb;

// If var not exists, means table not exists // todo: not true.
		if ( ! $this->_tb ) {
			return false;
		}

$cnt = $wpdb->get_var( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
			$wpdb->prepare(
				'SELECT COUNT(*) FROM `' . $this->_tb . '` WHERE dateline < %d', // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
				time() - $this->_conf_cache_ttl
			)
		);

return (int) $cnt;
	}

/**
	 * Build final local URL for cached avatar.
	 *
	 * @since 3.0
	 * @param string   $url  Original URL.
	 * @param int|null $time Optional filemtime for cache busting.
	 * @return string Local URL.
	 */
	private function _rewrite( $url, $time = null ) {
		$qs = $time ? '?ver=' . $time : '';
		return LITESPEED_STATIC_URL . '/avatar/' . $this->_filepath( $url ) . $qs;
	}

/**
	 * Generate filesystem realpath for cache file.
	 *
	 * @since 3.0
	 * @access private
	 * @param string $url Original URL.
	 * @return string Absolute filesystem path.
	 */
	private function _realpath( $url ) {
		return LITESPEED_STATIC_DIR . '/avatar/' . $this->_filepath( $url );
	}

/**
	 * Get relative filepath for cached avatar.
	 *
	 * @since 4.0
	 * @param string $url Original URL.
	 * @return string Relative path under avatar/ (may include blog id).
	 */
	private function _filepath( $url ) {
		$filename = md5( $url ) . '.jpg';
		if ( is_multisite() ) {
			$filename = get_current_blog_id() . '/' . $filename;
		}
		return $filename;
	}

/**
	 * Cron generation for expired avatars.
	 *
	 * @since 3.0
	 * @access public
	 * @param bool $force Bypass throttle.
	 * @return void
	 */
	public static function cron( $force = false ) {
		global $wpdb;

$_instance = self::cls();
		if ( ! $_instance->queue_count() ) {
			self::debug( '[Avatar] no queue' );
			return;
		}

// For cron, need to check request interval too.
		if ( ! $force ) {
			if ( ! empty( $_instance->_summary['curr_request'] ) && time() - $_instance->_summary['curr_request'] < 300 ) {
				self::debug( '[Avatar] curr_request too close' );
				return;
			}
		}

$list = $wpdb->get_results( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
			$wpdb->prepare(
				'SELECT url FROM `' . $_instance->_tb . '` WHERE dateline < %d ORDER BY id DESC LIMIT %d', // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
				time() - $_instance->_conf_cache_ttl,
				(int) apply_filters( 'litespeed_avatar_limit', 30 )
			)
		);
		self::debug( '[Avatar] cron job [count] ' . ( $list ? count( $list ) : 0 ) );

if ( $list ) {
			foreach ( $list as $v ) {
				self::debug( '[Avatar] cron job [url] ' . $v->url );
				$_instance->_generate( $v->url );
			}
		}
	}

/**
	 * Download and store the avatar locally, then update DB row.
	 *
	 * @since 3.0
	 * @access private
	 * @param string $url Original avatar URL.
	 * @return string Rewritten local URL (fallback to original on failure).
	 */
	private function _generate( $url ) {
		global $wpdb;

$file = $this->_realpath( $url );

// Mark request start
		self::save_summary(
			array(
				'curr_request' => time(),
			)
		);

// Ensure cache directory exists
		$this->_maybe_mk_cache_folder( 'avatar' );

$response = wp_safe_remote_get(
			$url,
			array(
				'timeout'  => 180,
				'stream'   => true,
				'filename' => $file,
			)
		);

self::debug( '[Avatar] _generate [url] ' . $url );

// Parse response data
		if ( is_wp_error( $response ) ) {
			$error_message = $response->get_error_message();
			if ( file_exists( $file ) ) {
				wp_delete_file( $file );
			}
			self::debug( '[Avatar] failed to get: ' . $error_message );
			return $url;
		}

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

// Update/insert DB record
		$md5 = md5( $url );

$existed = $wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
			$wpdb->prepare(
				'UPDATE `' . $this->_tb . '` SET dateline = %d WHERE md5 = %s', // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
				time(),
				$md5
			)
		);

if ( ! $existed ) {
			$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
				$wpdb->prepare(
					'INSERT INTO `' . $this->_tb . '` (url, md5, dateline) VALUES (%s, %s, %d)', // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
					$url,
					$md5,
					time()
				)
			);
		}

self::debug( '[Avatar] saved avatar ' . $file );

return $this->_rewrite( $url );
	}

/**
	 * Handle all request actions from main cls.
	 *
	 * @since 3.0
	 * @access public
	 * @return void
	 */
	public function handler() {
		$type = Router::verify_type();

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

default:
				break;
		}

Admin::redirect();
	}
}

Nama File / Folder	Size	Action
cdn	--	NONE
data_structure	--	NONE
activation.cls.php	17.437KB	Edit File Delete File Rename
admin-display.cls.php	48.119KB	Edit File Delete File Rename
admin-settings.cls.php	11.116KB	Edit File Delete File Rename
admin.cls.php	5.046KB	Edit File Delete File Rename
api.cls.php	10.437KB	Edit File Delete File Rename
avatar.cls.php	8.682KB	Edit File Delete File Rename
base.cls.php	34.58KB	Edit File Delete File Rename
cdn.cls.php	15.918KB	Edit File Delete File Rename
cloud.cls.php	65.796KB	Edit File Delete File Rename
conf.cls.php	19.53KB	Edit File Delete File Rename
control.cls.php	24.349KB	Edit File Delete File Rename
core.cls.php	21.015KB	Edit File Delete File Rename
crawler-map.cls.php	19.428KB	Edit File Delete File Rename
crawler.cls.php	42.195KB	Edit File Delete File Rename
css.cls.php	15.271KB	Edit File Delete File Rename
data.cls.php	16.49KB	Edit File Delete File Rename
data.upgrade.func.php	3.073KB	Edit File Delete File Rename
db-optm.cls.php	10.341KB	Edit File Delete File Rename
debug2.cls.php	14.17KB	Edit File Delete File Rename
doc.cls.php	4.066KB	Edit File Delete File Rename
error.cls.php	7.383KB	Edit File Delete File Rename
esi.cls.php	27.182KB	Edit File Delete File Rename
file.cls.php	10.569KB	Edit File Delete File Rename
gui.cls.php	36.503KB	Edit File Delete File Rename
health.cls.php	2.831KB	Edit File Delete File Rename
htaccess.cls.php	24.002KB	Edit File Delete File Rename
img-optm.cls.php	65.13KB	Edit File Delete File Rename
import.cls.php	4.292KB	Edit File Delete File Rename
import.preset.cls.php	5.501KB	Edit File Delete File Rename
lang.cls.php	15.06KB	Edit File Delete File Rename
localization.cls.php	3.439KB	Edit File Delete File Rename
media.cls.php	40.368KB	Edit File Delete File Rename
metabox.cls.php	5.316KB	Edit File Delete File Rename
object-cache-wp.cls.php	24.667KB	Edit File Delete File Rename
object-cache.cls.php	20.301KB	Edit File Delete File Rename
object.lib.php	13.31KB	Edit File Delete File Rename
optimize.cls.php	38.663KB	Edit File Delete File Rename
optimizer.cls.php	9.414KB	Edit File Delete File Rename
placeholder.cls.php	14.187KB	Edit File Delete File Rename
purge.cls.php	33.95KB	Edit File Delete File Rename
report.cls.php	6.119KB	Edit File Delete File Rename
rest.cls.php	8.637KB	Edit File Delete File Rename
root.cls.php	13.987KB	Edit File Delete File Rename
router.cls.php	20.568KB	Edit File Delete File Rename
str.cls.php	3.15KB	Edit File Delete File Rename
tag.cls.php	9.259KB	Edit File Delete File Rename
task.cls.php	6.132KB	Edit File Delete File Rename
tool.cls.php	4.217KB	Edit File Delete File Rename
ucss.cls.php	14.374KB	Edit File Delete File Rename
utility.cls.php	21.763KB	Edit File Delete File Rename
vary.cls.php	20.201KB	Edit File Delete File Rename
vpi.cls.php	9.363KB	Edit File Delete File Rename