^^&&^^

Edit File: router.cls.php

<?php
/**
 * The core plugin router class.
 *
 * This generate the valid action.
 *
 * @since      	1.1.0
 * @since  		1.5 Moved into /inc
 */
namespace LiteSpeed;
defined( 'WPINC' ) || exit;

class Router extends Base
{
	protected static $_instance;

const NONCE = 'LSCWP_NONCE';
	const ACTION = 'LSCWP_CTRL';

const ACTION_SAVE_HTACCESS = 'save-htaccess';
	const ACTION_SAVE_SETTINGS_NETWORK = 'save-settings-network';
	const ACTION_DB_OPTM = 'db_optm';
	const ACTION_PLACEHOLDER = 'placeholder';
	const ACTION_AVATAR = 'avatar';
	const ACTION_SAVE_SETTINGS = 'save-settings';
	const ACTION_CLOUD = 'cloud';
	const ACTION_IMG_OPTM = 'img_optm';
	const ACTION_HEALTH = 'health';
	const ACTION_CRAWLER = 'crawler';
	const ACTION_PURGE = 'purge';
	const ACTION_CONF = 'conf';
	const ACTION_ACTIVATION = 'activation';
	const ACTION_CSS = 'css';
	const ACTION_IMPORT = 'import';
	const ACTION_REPORT = 'report';
	const ACTION_DEBUG2 = 'debug2';
	const ACTION_CDN_QUIC = 'cdn_quic';
	const ACTION_CDN_CLOUDFLARE = 'cdn_cloudflare';

const TYPE = 'litespeed_type';

const ITEM_HASH = 'hash';

private static $_esi_enabled;
	private static $_is_ajax ;
	private static $_is_logged_in ;
	private static $_ip ;
	private static $_action ;
	private static $_is_admin_ip ;
	private static $_frontend_path ;

/**
	 * Check if can run optimize
	 *
	 * @since  1.3
	 * @since  2.3.1 Relocated from cdn.cls
	 * @access public
	 */
	public static function can_optm()
	{
		$can = true ;

if ( is_admin() ) {
			$can = false ;
		}
		elseif ( is_feed() ) {
			$can = false ;
		}
		elseif ( is_preview() ) {
			$can = false ;
		}
		elseif ( self::is_ajax() ) {
			$can = false ;
		}

if ( self::_is_login_page() ) {
			Debug2::debug( '[Router] Optm bypassed: login/reg page' ) ;
			$can = false ;
		}

$can_final = apply_filters( 'litespeed_can_optm', $can ) ;

if ( $can_final != $can ) {
			Debug2::debug( '[Router] Optm bypassed: filter' ) ;
		}

return $can_final ;
	}

/**
	 * Check referer page to see if its from admin
	 *
	 * @since 2.4.2.1
	 * @access public
	 */
	public static function from_admin()
	{
		return ! empty( $_SERVER[ 'HTTP_REFERER' ] ) && strpos( $_SERVER[ 'HTTP_REFERER' ], get_admin_url() ) === 0 ;
	}

/**
	 * Check if it can use CDN replacement
	 *
	 * @since  1.2.3
	 * @since  2.3.1 Relocated from cdn.cls
	 * @access public
	 */
	public static function can_cdn()
	{
		$can = true ;

if ( is_admin() ) {
			if ( ! self::is_ajax() ) {
				Debug2::debug2( '[Router] CDN bypassed: is not ajax call' ) ;
				$can = false ;
			}

if ( self::from_admin() ) {
				Debug2::debug2( '[Router] CDN bypassed: ajax call from admin' ) ;
				$can = false ;
			}
		}
		elseif ( is_feed() ) {
			$can = false ;
		}
		elseif ( is_preview() ) {
			$can = false ;
		}

/**
		 * Bypass cron to avoid deregister jq notice `Do not deregister the <code>jquery-core</code> script in the administration area.`
		 * @since  2.7.2
		 */
		if ( defined( 'DOING_CRON' ) ) {
			$can = false ;
		}

/**
		 * Bypass login/reg page
		 * @since  1.6
		 */
		if ( self::_is_login_page() ) {
			Debug2::debug( '[Router] CDN bypassed: login/reg page' ) ;
			$can = false ;
		}

/**
		 * Bypass post/page link setting
		 * @since 2.9.8.5
		 */
		$rest_prefix = function_exists( 'rest_get_url_prefix' ) ? rest_get_url_prefix() : apply_filters( 'rest_url_prefix', 'wp-json' );
		if (
			strpos( $_SERVER[ 'REQUEST_URI' ], $rest_prefix . '/wp/v2/media' ) !== false
			&& strpos( $_SERVER[ 'HTTP_REFERER' ], 'wp-admin') !== false
		) {
			Debug2::debug( '[Router] CDN bypassed: wp-json on admin page' ) ;
			$can = false ;
		}

$can_final = apply_filters( 'litespeed_can_cdn', $can ) ;

if ( $can_final != $can ) {
			Debug2::debug( '[Router] CDN bypassed: filter' ) ;
		}

return $can_final ;
	}

/**
	 * Check if is login page or not
	 *
	 * @since  2.3.1
	 * @access protected
	 */
	protected static function _is_login_page()
	{
		if ( in_array( $GLOBALS[ 'pagenow' ], array( 'wp-login.php', 'wp-register.php' ), true ) ) {
			return true ;
		}

return false ;
	}

/**
	 * UCSS/Crawler role simulator
	 *
	 * @since  1.9.1
	 * @since  3.3 Renamed from `is_crawler_role_simulation`
	 */
	public function is_role_simulation() {
		if( is_admin() ) {
			return;
		}

if ( empty( $_COOKIE[ 'litespeed_role' ] ) || empty( $_COOKIE[ 'litespeed_hash' ] ) ) {
			return;
		}

Debug2::debug( '[Router] starting role validation' );

// Check if is from crawler
		// if ( empty( $_SERVER[ 'HTTP_USER_AGENT' ] ) || strpos( $_SERVER[ 'HTTP_USER_AGENT' ], Crawler::FAST_USER_AGENT ) !== 0 ) {
		// 	Debug2::debug( '[Router] user agent not match' );
		// 	return;
		// }

// Hash validation
		$hash = self::get_option( self::ITEM_HASH );
		if ( ! $hash || $_COOKIE[ 'litespeed_hash' ] != $hash ) {
			Debug2::debug( '[Router] hash not match ' . $_COOKIE[ 'litespeed_hash' ] . ' != ' . $hash );
			return;
		}

$role_uid = $_COOKIE[ 'litespeed_role' ];
		Debug2::debug( '[Router] role simulate litespeed_role uid ' . $role_uid );

wp_set_current_user( $role_uid );
	}

/**
	 * Get a security hash
	 *
	 * @since  3.3
	 */
	public static function get_hash() {
		// Reuse previous hash if existed
		$hash = self::get_option( self::ITEM_HASH );
		if ( $hash ) {
			return $hash;
		}

$hash = Str::rrand( 6 );
		self::update_option( self::ITEM_HASH, $hash );
		return $hash;
	}

/**
	 * Get user role
	 *
	 * @since  1.6.2
	 */
	public static function get_role( $uid = null ) {
		if ( defined( 'LITESPEED_WP_ROLE' ) ) {
			return LITESPEED_WP_ROLE;
		}

if ( $uid === null ) {
			$uid = get_current_user_id();
		}

$role = false ;
		if ( $uid ) {
			$user = get_userdata( $uid ) ;
			if ( isset( $user->roles ) && is_array( $user->roles ) ) {
				$tmp = array_values( $user->roles ) ;
				$role = array_shift( $tmp ) ;
			}
		}
		Debug2::debug( '[Router] get_role: ' . $role ) ;

if ( ! $role ) {
			return $role ;
			// Guest user
			Debug2::debug( '[Router] role: guest' ) ;

/**
			 * Fix double login issue
			 * The previous user init refactoring didn't fix this bcos this is in login process and the user role could change
			 * @see  https://github.com/litespeedtech/lscache_wp/commit/69e7bc71d0de5cd58961bae953380b581abdc088
			 * @since  2.9.8 Won't assign const if in login process
			 */
			if ( substr_compare( wp_login_url(), $GLOBALS[ 'pagenow' ], -strlen( $GLOBALS[ 'pagenow' ] ) ) === 0 ) {
				return $role ;
			}
		}

define( 'LITESPEED_WP_ROLE', $role ) ;

return LITESPEED_WP_ROLE ;
	}

/**
	 * Get frontend path
	 *
	 * @since 1.2.2
	 * @access public
	 * @return boolean
	 */
	public static function frontend_path()//todo: move to htaccess.cls ?
	{
		if ( ! isset( self::$_frontend_path ) ) {
			$frontend = rtrim( ABSPATH, '/' ) ; // /home/user/public_html/frontend
			// get home path failed. Trac ticket #37668 (e.g. frontend:/blog backend:/wordpress)
			if ( ! $frontend ) {
				Debug2::debug( '[Router] No ABSPATH, generating from home option' ) ;
				$frontend = parse_url( get_option( 'home' ) ) ;
				$frontend = ! empty( $frontend[ 'path' ] ) ? $frontend[ 'path' ] : '' ;
				$frontend = $_SERVER[ 'DOCUMENT_ROOT' ] . $frontend ;
			}
			$frontend = realpath( $frontend ) ;

self::$_frontend_path = $frontend ;
		}
		return self::$_frontend_path ;
	}

/**
	 * Check if ESI is enabled or not
	 *
	 * @since 1.2.0
	 * @access public
	 * @return boolean
	 */
	public static function esi_enabled()
	{
		if ( ! isset( self::$_esi_enabled ) ) {
			self::$_esi_enabled = defined( 'LITESPEED_ON' ) && Conf::val( Base::O_ESI ) ;
		}
		return self::$_esi_enabled ;
	}

/**
	 * Check if crawler is enabled on server level
	 *
	 * @since 1.1.1
	 * @access public
	 */
	public static function can_crawl()
	{
		if ( isset( $_SERVER[ 'X-LSCACHE' ] ) && strpos( $_SERVER[ 'X-LSCACHE' ], 'crawler' ) === false ) {
			return false;
		}

// CLI will bypass this check as crawler library can always do the 428 check
		if ( defined( 'LITESPEED_CLI' ) ) {
			return true;
		}

return true;
	}

/**
	 * Check action
	 *
	 * @since 1.1.0
	 * @access public
	 * @return string
	 */
	public static function get_action()
	{
		if ( ! isset( self::$_action ) ) {
			self::$_action = false;
			self::get_instance()->verify_action() ;
			if ( self::$_action ) {
				defined( 'LSCWP_LOG' ) && Debug2::debug( '[Router] LSCWP_CTRL verified: ' . var_export( self::$_action, true ) ) ;
			}

}
		return self::$_action ;
	}

/**
	 * Check if is logged in
	 *
	 * @since 1.1.3
	 * @access public
	 * @return boolean
	 */
	public static function is_logged_in()
	{
		if ( ! isset( self::$_is_logged_in ) ) {
			self::$_is_logged_in = is_user_logged_in() ;
		}
		return self::$_is_logged_in ;
	}

/**
	 * Check if is ajax call
	 *
	 * @since 1.1.0
	 * @access public
	 * @return boolean
	 */
	public static function is_ajax()
	{
		if ( ! isset( self::$_is_ajax ) ) {
			self::$_is_ajax = defined( 'DOING_AJAX' ) && DOING_AJAX ;
		}
		return self::$_is_ajax ;
	}

/**
	 * Check if is admin ip
	 *
	 * @since 1.1.0
	 * @access public
	 * @return boolean
	 */
	public static function is_admin_ip()
	{
		if ( ! isset( self::$_is_admin_ip ) ) {
			$ips = Conf::val( Base::O_DEBUG_IPS ) ;

self::$_is_admin_ip = self::get_instance()->ip_access( $ips ) ;
		}
		return self::$_is_admin_ip ;
	}

/**
	 * Get type value
	 *
	 * @since 1.6
	 * @access public
	 */
	public static function verify_type()
	{
		if ( empty( $_REQUEST[ self::TYPE ] ) ) {
			Debug2::debug( '[Router] no type', 2 ) ;
			return false ;
		}

Debug2::debug( '[Router] parsed type: ' . $_REQUEST[ self::TYPE ], 2 ) ;

return $_REQUEST[ self::TYPE ] ;
	}

/**
	 * Check privilege and nonce for the action
	 *
	 * @since 1.1.0
	 * @access private
	 */
	private function verify_action()
	{
		if ( empty( $_REQUEST[ Router::ACTION ] ) ) {
			Debug2::debug2( '[Router] LSCWP_CTRL bypassed empty' ) ;
			return ;
		}

$action = $_REQUEST[ Router::ACTION ] ;
		$_is_public_action = false ;

// Each action must have a valid nonce unless its from admin ip and is public action
		// Validate requests nonce (from admin logged in page or cli)
		if ( ! $this->verify_nonce( $action ) ) {
			// check if it is from admin ip
			if ( ! $this->is_admin_ip() ) {
				Debug2::debug( '[Router] LSCWP_CTRL query string - did not match admin IP: ' . $action ) ;
				return ;
			}

// check if it is public action
			if ( ! in_array( $action, array(
					Core::ACTION_QS_NOCACHE,
					Core::ACTION_QS_PURGE,
					Core::ACTION_QS_PURGE_SINGLE,
					Core::ACTION_QS_SHOW_HEADERS,
					Core::ACTION_QS_PURGE_ALL,
					Core::ACTION_QS_PURGE_EMPTYCACHE,
					) ) ) {
				Debug2::debug( '[Router] LSCWP_CTRL query string - did not match admin IP Actions: ' . $action ) ;
				return ;
			}

$_is_public_action = true ;
		}

/* Now it is a valid action, lets log and check the permission */
		Debug2::debug( '[Router] LSCWP_CTRL: ' . $action ) ;

// OK, as we want to do something magic, lets check if its allowed
		$_is_multisite = is_multisite() ;
		$_is_network_admin = $_is_multisite && is_network_admin() ;
		$_can_network_option = $_is_network_admin && current_user_can( 'manage_network_options' ) ;
		$_can_option = current_user_can( 'manage_options' ) ;

switch ( $action ) {
			// Save htaccess
			case self::ACTION_SAVE_HTACCESS:
				if ( ( ! $_is_multisite && $_can_option ) || $_can_network_option ) {
					self::$_action = $action ;
				}
				return ;

// Save network settings
			case self::ACTION_SAVE_SETTINGS_NETWORK:
				if ( $_can_network_option ) {
					self::$_action = $action ;
				}
				return ;

case Core::ACTION_PURGE_BY:
				if ( defined( 'LITESPEED_ON' ) && ( $_can_network_option || $_can_option || self::is_ajax() ) ) {//here may need more security
					self::$_action = $action ;
				}
				return ;

case self::ACTION_DB_OPTM:
				if ( $_can_network_option || $_can_option ) {
					self::$_action = $action ;
				}
				return ;

case Core::ACTION_PURGE_EMPTYCACHE:// todo: moved to purge.cls type action
				if ( defined( 'LITESPEED_ON' ) && ( $_can_network_option || ( ! $_is_multisite && $_can_option ) ) ) {
					self::$_action = $action ;
				}
				return ;

case Core::ACTION_QS_NOCACHE:
			case Core::ACTION_QS_PURGE:
			case Core::ACTION_QS_PURGE_SINGLE:
			case Core::ACTION_QS_SHOW_HEADERS:
			case Core::ACTION_QS_PURGE_ALL:
			case Core::ACTION_QS_PURGE_EMPTYCACHE:
				if ( defined( 'LITESPEED_ON' ) && ( $_is_public_action || self::is_ajax() ) ) {
					self::$_action = $action ;
				}
				return ;

case self::ACTION_PLACEHOLDER:
			case self::ACTION_AVATAR:
			case self::ACTION_IMG_OPTM:
			case self::ACTION_CLOUD:
			case self::ACTION_CDN_CLOUDFLARE:
			case self::ACTION_CDN_QUIC:
			case self::ACTION_CRAWLER:
			case self::ACTION_IMPORT:
			case self::ACTION_REPORT:
			case self::ACTION_CSS:
			case self::ACTION_CONF:
			case self::ACTION_ACTIVATION:
			case self::ACTION_HEALTH:
			case self::ACTION_SAVE_SETTINGS: // Save settings
				if ( $_can_option && ! $_is_network_admin ) {
					self::$_action = $action ;
				}
				return ;

case self::ACTION_PURGE:
			case self::ACTION_DEBUG2:
				if ( $_can_network_option || $_can_option ) {
					self::$_action = $action;
				}
				return;

case Core::ACTION_DISMISS:
				/**
				 * Non ajax call can dismiss too
				 * @since  2.9
				 */
				// if ( self::is_ajax() ) {
				self::$_action = $action ;
				// }
				return ;

default:
				Debug2::debug( '[Router] LSCWP_CTRL match falied: ' . $action ) ;
				return ;
		}

}

/**
	 * Verify nonce
	 *
	 * @since 1.1.0
	 * @access private
	 * @param  string $action
	 * @return bool
	 */
	private function verify_nonce( $action )
	{
		if ( ! isset( $_REQUEST[Router::NONCE] ) || ! wp_verify_nonce( $_REQUEST[Router::NONCE], $action ) ) {
			return false ;
		}
		else{
			return true ;
		}
	}

/**
	 * Check if the ip is in the range
	 *
	 * @since 1.1.0
	 * @access public
	 */
	public function ip_access( $ip_list ) {
		if ( ! $ip_list ) {
			return false;
		}
		if ( ! isset( self::$_ip ) ) {
			self::$_ip = $this->get_ip();
		}
		// $uip = explode('.', $_ip);
		// if(empty($uip) || count($uip) != 4) Return false;
		// foreach($ip_list as $key => $ip) $ip_list[$key] = explode('.', trim($ip));
		// foreach($ip_list as $key => $ip) {
		// 	if(count($ip) != 4) continue;
		// 	for($i = 0; $i <= 3; $i++) if($ip[$i] == '*') $ip_list[$key][$i] = $uip[$i];
		// }
		return in_array( self::$_ip, $ip_list );
	}

/**
	 * Get client ip
	 *
	 * @since 1.1.0
	 * @since  1.6.5 changed to public
	 * @access public
	 * @return string
	 */
	public static function get_ip()
	{
		$_ip = '' ;
		if ( function_exists( 'apache_request_headers' ) ) {
			$apache_headers = apache_request_headers() ;
			$_ip = ! empty( $apache_headers['True-Client-IP'] ) ? $apache_headers['True-Client-IP'] : false ;
			if ( ! $_ip ) {
				$_ip = ! empty( $apache_headers['X-Forwarded-For'] ) ? $apache_headers['X-Forwarded-For'] : false ;
				$_ip = explode( ", ", $_ip ) ;
				$_ip = array_shift( $_ip ) ;
			}

}

if ( ! $_ip ) {
			$_ip = ! empty( $_SERVER['REMOTE_ADDR'] ) ? $_SERVER['REMOTE_ADDR'] : false ;
		}
		return $_ip ;
	}

/**
	 * Check if opcode cache is enabled
	 *
	 * @since  1.8.2
	 * @access public
	 */
	public static function opcache_enabled()
	{
		return function_exists( 'opcache_reset' ) && ini_get( 'opcache.enable' ) ;
	}

/**
	 * Handle static files
	 *
	 * @since  3.0
	 */
	public static function serve_static()
	{
		if ( ! empty( $_SERVER[ 'SCRIPT_URI' ] ) ) {
			if ( strpos( $_SERVER[ 'SCRIPT_URI' ], LITESPEED_STATIC_URL . '/' ) !== 0 ) {
				return;
			}
			$path = substr( $_SERVER[ 'SCRIPT_URI' ], strlen( LITESPEED_STATIC_URL . '/' ) );
		}
		elseif ( ! empty( $_SERVER[ 'REQUEST_URI' ] ) ) {
			$static_path = parse_url( LITESPEED_STATIC_URL, PHP_URL_PATH ) . '/';
			if ( strpos( $_SERVER[ 'REQUEST_URI' ], $static_path ) !== 0 ) {
				return;
			}
			$path = substr( parse_url( $_SERVER[ 'REQUEST_URI' ], PHP_URL_PATH ), strlen( $static_path ) );
		}
		else {
			return;
		}

$path = explode( '/', $path, 2 );

if ( empty( $path[ 0 ] ) || empty( $path[ 1 ] ) ) {
			return;
		}

switch ( $path[ 0 ] ) {
			case 'avatar':
				Avatar::get_instance()->serve_satic( $path[ 1 ] );
				break;

case 'cssjs':
				Optimize::get_instance()->serve_satic( $path[ 1 ] );
				break;

case 'localres':
				Localization::get_instance()->serve_static( $path[ 1 ] );
				break;

default :
				break;
		}

}

/**
	 * Handle all request actions from main cls
	 *
	 * This is different than other handlers
	 *
	 * @since  3.0
	 * @access public
	 */
	public static function handler( $cls )
	{
		// CDN is child namespaces
		if ( $cls == self::ACTION_CDN_QUIC || $cls == self::ACTION_CDN_CLOUDFLARE ) {
			$cls = str_replace( '_', '\\', $cls );
		}

$cls = __NAMESPACE__ . '\\' . $cls;

if ( method_exists( $cls, 'handler' ) ) {
			return $cls::handler();
		}
	}

}