Your IP : 3.15.168.211
<?php
/**
* The utility class.
*
* @since 1.1.5
* @since 1.5 Moved into /inc
*/
namespace LiteSpeed;
defined( 'WPINC' ) || exit;
class Utility extends Root {
private static $_internal_domains;
/**
* Validate regex
*
* @since 1.0.9
* @since 3.0 Moved here from admin-settings.cls
* @access public
* @return bool True for valid rules, false otherwise.
*/
public static function syntax_checker( $rules ) {
return preg_match( self::arr2regex( $rules ), '' ) !== false;
}
/**
* Combine regex array to regex rule
*
* @since 3.0
*/
public static function arr2regex( $arr, $drop_delimiter = false ) {
$arr = self::sanitize_lines( $arr );
$new_arr = array();
foreach ( $arr as $v ) {
$new_arr[] = preg_quote( $v, '#' );
}
$regex = implode( '|', $new_arr );
$regex = str_replace( ' ', '\\ ', $regex );
if ( $drop_delimiter ) {
return $regex;
}
return '#' . $regex . '#';
}
/**
* Replace wildcard to regex
*
* @since 3.2.2
*/
public static function wildcard2regex( $string ) {
if ( is_array( $string ) ) {
return array_map( __CLASS__ . '::wildcard2regex', $string );
}
if ( strpos( $string, '*' ) !== false ) {
$string = preg_quote( $string, '#' );
$string = str_replace( '\*', '.*', $string );
}
return $string;
}
/**
* Check if an URL or current page is REST req or not
*
* @since 2.9.3
* @deprecated 2.9.4 Moved to REST class
* @access public
*/
public static function is_rest( $url = false ) {
return false;
}
/**
* Get current page type
*
* @since 2.9
*/
public static function page_type() {
global $wp_query;
$page_type = 'default';
if ( $wp_query->is_page ) {
$page_type = is_front_page() ? 'front' : 'page';
}
elseif ( $wp_query->is_home ) {
$page_type = 'home';
}
elseif ( $wp_query->is_single ) {
// $page_type = $wp_query->is_attachment ? 'attachment' : 'single';
$page_type = get_post_type();
}
elseif ( $wp_query->is_category ) {
$page_type = 'category';
}
elseif ( $wp_query->is_tag ) {
$page_type = 'tag';
}
elseif ( $wp_query->is_tax ) {
$page_type = 'tax';
// $page_type = get_queried_object()->taxonomy;
}
elseif ( $wp_query->is_archive ) {
if ( $wp_query->is_day ) {
$page_type = 'day';
}
elseif ( $wp_query->is_month ) {
$page_type = 'month';
}
elseif ( $wp_query->is_year ) {
$page_type = 'year';
}
elseif ( $wp_query->is_author ) {
$page_type = 'author';
}
else {
$page_type = 'archive';
}
}
elseif ( $wp_query->is_search ) {
$page_type = 'search';
}
elseif ( $wp_query->is_404 ) {
$page_type = '404';
}
return $page_type;
// if ( is_404() ) {
// $page_type = '404';
// }
// elseif ( is_singular() ) {
// $page_type = get_post_type();
// }
// elseif ( is_home() && get_option( 'show_on_front' ) == 'page' ) {
// $page_type = 'home';
// }
// elseif ( is_front_page() ) {
// $page_type = 'front';
// }
// elseif ( is_tax() ) {
// $page_type = get_queried_object()->taxonomy;
// }
// elseif ( is_category() ) {
// $page_type = 'category';
// }
// elseif ( is_tag() ) {
// $page_type = 'tag';
// }
// return $page_type;
}
/**
* Get ping speed
*
* @since 2.9
*/
public static function ping( $domain ) {
if ( strpos( $domain, ':' ) ) {
$domain = parse_url( $domain, PHP_URL_HOST );
}
$starttime = microtime( true );
$file = fsockopen( $domain, 443, $errno, $errstr, 10 );
$stoptime = microtime( true );
$status = 0;
if ( ! $file ) $status = 99999;// Site is down
else {
fclose( $file );
$status = ( $stoptime - $starttime ) * 1000;
$status = floor( $status );
}
Debug2::debug( "[Util] ping [Domain] $domain \t[Speed] $status" );
return $status;
}
/**
* Set seconds/timestamp to readable format
*
* @since 1.6.5
* @access public
*/
public static function readable_time( $seconds_or_timestamp, $timeout = 3600, $forword = false ) {
if ( strlen( $seconds_or_timestamp ) == 10 ) {
$seconds = time() - $seconds_or_timestamp;
if ( $seconds > $timeout ) {
return date( 'm/d/Y H:i:s', $seconds_or_timestamp + LITESPEED_TIME_OFFSET );
}
}
else {
$seconds = $seconds_or_timestamp;
}
$res = '';
if ( $seconds > 86400 ) {
$num = floor( $seconds / 86400 );
$res .= $num . 'd';
$seconds %= 86400;
}
if ( $seconds > 3600 ) {
if ( $res ) {
$res .= ', ';
}
$num = floor( $seconds / 3600 );
$res .= $num . 'h';
$seconds %= 3600;
}
if ( $seconds > 60 ) {
if ( $res ) {
$res .= ', ';
}
$num = floor( $seconds / 60 );
$res .= $num . 'm';
$seconds %= 60;
}
if ( $seconds > 0 ) {
if ( $res ) {
$res .= ' ';
}
$res .= $seconds . 's';
}
if ( ! $res ) {
return $forword ? __( 'right now', 'litespeed-cache' ) : __( 'just now', 'litespeed-cache' );
}
$res = $forword ? $res : sprintf( __( ' %s ago', 'litespeed-cache' ), $res );
return $res;
}
/**
* Convert array to string
*
* @since 1.6
* @access public
*/
public static function arr2str( $arr ) {
if ( ! is_array( $arr ) ) {
return $arr;
}
return base64_encode( json_encode( $arr ) );
}
/**
* Get human readable size
*
* @since 1.6
* @access public
*/
public static function real_size( $filesize, $is_1000 = false ) {
$unit = $is_1000 ? 1000 : 1024;
if ( $filesize >= pow( $unit, 3 ) ) {
$filesize = round( $filesize / pow( $unit, 3 ) * 100 ) / 100 . 'G';
}
elseif ( $filesize >= pow( $unit, 2 ) ) {
$filesize = round( $filesize / pow( $unit, 2 ) * 100 ) / 100 . 'M';
}
elseif ( $filesize >= $unit ) {
$filesize = round( $filesize / $unit * 100 ) / 100 . 'K';
}
else {
$filesize = $filesize . 'B';
}
return $filesize;
}
/**
* Parse attributes from string
*
* @since 1.2.2
* @since 1.4 Moved from optimize to utility
* @access private
* @param string $str
* @return array All the attributes
*/
public static function parse_attr( $str ) {
$attrs = array();
preg_match_all( '#([\w-]+)=(["\'])([^\2]*)\2#isU', $str, $matches, PREG_SET_ORDER );
foreach ( $matches as $match ) {
$attrs[ $match[ 1 ] ] = trim( $match[ 3 ] );
}
return $attrs;
}
/**
* Check if an array has a string
*
* Support $ exact match
*
* @since 1.3
* @access private
* @param string $needle The string to search with
* @param array $haystack
* @return bool|string False if not found, otherwise return the matched string in haystack.
*/
public static function str_hit_array( $needle, $haystack, $has_ttl = false ) {
if ( ! $haystack ) {
return false;
}
/**
* Safety check to avoid PHP warning
* @see https://github.com/litespeedtech/lscache_wp/pull/131/commits/45fc03af308c7d6b5583d1664fad68f75fb6d017
*/
if ( ! is_array( $haystack ) ) {
Debug2::debug( "[Util] ❌ bad param in str_hit_array()!" );
return false;
}
$hit = false;
$this_ttl = 0;
foreach( $haystack as $item ) {
if ( ! $item ) {
continue;
}
if ( $has_ttl ) {
$this_ttl = 0;
$item = explode( ' ', $item );
if ( ! empty( $item[ 1 ] ) ) {
$this_ttl = $item[ 1 ];
}
$item = $item[ 0 ];
}
if ( substr( $item, 0, 1 ) === '^' && substr( $item, -1 ) === '$' ) {
// do exact match
if ( substr( $item, 1, -1 ) === $needle ) {
$hit = $item;
break;
}
}
elseif ( substr( $item, -1 ) === '$' ) {
// match end
if ( substr( $item, 0, -1 ) === substr($needle, -strlen( $item ) + 1 ) ) {
$hit = $item;
break;
}
}
elseif ( substr( $item, 0, 1 ) === '^' ) {
// match beginning
if ( substr( $item, 1 ) === substr( $needle, 0, strlen( $item ) - 1 ) ) {
$hit = $item;
break;
}
}
else {
if ( strpos( $needle, $item ) !== false ) {
$hit = $item;
break;
}
}
}
if ( $hit ) {
if ( $has_ttl ) {
return array( $hit, $this_ttl );
}
return $hit;
}
return false;
}
/**
* Improve compatibility to PHP old versions
*
* @since 1.2.2
*
*/
public static function compatibility() {
require_once LSCWP_DIR . 'lib/php-compatibility.func.php';
}
/**
* Convert URI to URL
*
* @since 1.3
* @access public
* @param string $uri `xx/xx.html` or `/subfolder/xx/xx.html`
* @return string http://www.example.com/subfolder/xx/xx.html
*/
public static function uri2url( $uri ) {
if ( substr( $uri, 0, 1 ) === '/' ) {
self::domain_const();
$url = LSCWP_DOMAIN . $uri;
}
else {
$url = home_url( '/' ) . $uri;
}
return $url;
}
/**
* Convert URL to basename (filename)
*
* @since 4.7
*/
public static function basename( $url ) {
$url = trim( $url );
$uri = @parse_url( $url, PHP_URL_PATH );
$basename = pathinfo( $uri, PATHINFO_BASENAME );
return $basename;
}
/**
* Drop .webp if existed in filename
*
* @since 4.7
*/
public static function drop_webp( $filename ) {
if ( substr($filename, -5 ) === '.webp' ) $filename = substr( $filename, 0, -5 );
return $filename;
}
/**
* Convert URL to URI
*
* @since 1.2.2
* @since 1.6.2.1 Added 2nd param keep_qs
* @access public
*/
public static function url2uri( $url, $keep_qs = false ) {
$url = trim( $url );
$uri = @parse_url( $url, PHP_URL_PATH );
$qs = @parse_url( $url, PHP_URL_QUERY );
if ( ! $keep_qs || ! $qs ) {
return $uri;
}
return $uri . '?' . $qs;
}
/**
* Get attachment relative path to upload folder
*
* @since 3.0
* @access public
* @param string `https://aa.com/bbb/wp-content/upload/2018/08/test.jpg` or `/bbb/wp-content/upload/2018/08/test.jpg`
* @return string `2018/08/test.jpg`
*/
public static function att_short_path( $url ) {
if ( ! defined( 'LITESPEED_UPLOAD_PATH' ) ) {
$_wp_upload_dir = wp_upload_dir();
$upload_path = self::url2uri( $_wp_upload_dir[ 'baseurl' ] );
define( 'LITESPEED_UPLOAD_PATH', $upload_path );
}
$local_file = self::url2uri( $url );
$short_path = substr( $local_file, strlen( LITESPEED_UPLOAD_PATH ) + 1 );
return $short_path;
}
/**
* Make URL to be relative
*
* NOTE: for subfolder home_url, will keep subfolder part (strip nothing but scheme and host)
*
* @param string $url
* @return string Relative URL, start with /
*/
public static function make_relative( $url ) {
// replace home_url if the url is full url
self::domain_const();
if ( strpos( $url, LSCWP_DOMAIN ) === 0 ) {
$url = substr( $url, strlen( LSCWP_DOMAIN ) );
}
return trim( $url );
}
/**
* Convert URL to domain only
*
* @since 1.7.1
*/
public static function parse_domain( $url ) {
$url = @parse_url( $url );
if ( empty( $url[ 'host' ] ) ) {
return '';
}
if ( ! empty( $url[ 'scheme' ] ) ) {
return $url[ 'scheme' ] . '://' . $url[ 'host' ];
}
return '//' . $url[ 'host' ];
}
/**
* Drop protocol `https:` from https://example.com
*
* @since 3.3
*/
public static function noprotocol( $url ) {
$tmp = parse_url( trim( $url ) );
if ( ! empty( $tmp[ 'scheme' ] ) ) {
$url = str_replace( $tmp[ 'scheme' ] . ':', '', $url );
}
return $url;
}
/**
* Generate domain const
*
* This will generate http://www.example.com even there is a subfolder in home_url setting
*
* Conf LSCWP_DOMAIN has NO trailing /
*
* @since 1.3
* @access public
*/
public static function domain_const() {
if ( defined( 'LSCWP_DOMAIN' ) ) {
return;
}
self::compatibility();
$domain = http_build_url( get_home_url(), array(), HTTP_URL_STRIP_ALL );
define( 'LSCWP_DOMAIN', $domain );
}
/**
* Array map one textarea to sanitize the url
*
* @since 1.3
* @access public
* @param string $content
* @param bool $type String handler type
* @return string
*/
public static function sanitize_lines( $arr, $type = null ) {
$types = $type ? explode( ',', $type ) : array();
if ( ! $arr ) {
if ( $type === 'string' ) {
return '';
}
return array();
}
if ( ! is_array( $arr ) ) {
$arr = explode( "\n", $arr );
}
$arr = array_map( 'trim', $arr );
$changed = false;
if ( in_array( 'uri', $types ) ) {
$arr = array_map( __CLASS__ . '::url2uri', $arr );
$changed = true;
}
if ( in_array( 'basename', $types ) ) {
$arr = array_map( __CLASS__ . '::basename', $arr );
$changed = true;
}
if ( in_array( 'drop_webp', $types ) ) {
$arr = array_map( __CLASS__ . '::drop_webp', $arr );
$changed = true;
}
if ( in_array( 'relative', $types ) ) {
$arr = array_map( __CLASS__ . '::make_relative', $arr );// Remove domain
$changed = true;
}
if ( in_array( 'domain', $types ) ) {
$arr = array_map( __CLASS__ . '::parse_domain', $arr );// Only keep domain
$changed = true;
}
if ( in_array( 'noprotocol', $types ) ) {
$arr = array_map( __CLASS__ . '::noprotocol', $arr ); // Drop protocol, `https://example.com` -> `//example.com`
$changed = true;
}
if ( in_array( 'trailingslash', $types ) ) {
$arr = array_map( 'trailingslashit', $arr ); // Append trailing slach, `https://example.com` -> `https://example.com/`
$changed = true;
}
if ( $changed ) {
$arr = array_map( 'trim', $arr );
}
$arr = array_unique( $arr );
$arr = array_filter( $arr );
if ( in_array( 'string', $types ) ) {
return implode( "\n", $arr );
}
return $arr;
}
/**
* Builds an url with an action and a nonce.
*
* Assumes user capabilities are already checked.
*
* @since 1.6 Changed order of 2nd&3rd param, changed 3rd param `append_str` to 2nd `type`
* @access public
* @return string The built url.
*/
public static function build_url( $action, $type = false, $is_ajax = false, $page = null, $append_arr = array() ) {
$prefix = '?';
if ( $page === '_ori' ) {
$page = true;
$append_arr[ '_litespeed_ori' ] = 1;
}
if ( ! $is_ajax ) {
if ( $page ) {
// If use admin url
if ( $page === true ) {
$page = 'admin.php';
}
else {
if ( strpos( $page, '?' ) !== false ) {
$prefix = '&';
}
}
$combined = $page . $prefix . Router::ACTION . '=' . $action;
}
else {
// Current page rebuild URL
$params = $_GET;
if ( ! empty( $params ) ) {
if ( isset( $params[ Router::ACTION ] ) ) {
unset( $params[ Router::ACTION ] );
}
if ( isset( $params[ '_wpnonce' ] ) ) {
unset( $params[ '_wpnonce' ] );
}
if ( ! empty( $params ) ) {
$prefix .= http_build_query( $params ) . '&';
}
}
global $pagenow;
$combined = $pagenow . $prefix . Router::ACTION . '=' . $action;
}
}
else {
$combined = 'admin-ajax.php?action=litespeed_ajax&' . Router::ACTION . '=' . $action;
}
if ( is_network_admin() ) {
$prenonce = network_admin_url( $combined );
}
else {
$prenonce = admin_url( $combined );
}
$url = wp_nonce_url( $prenonce, $action, Router::NONCE );
if ( $type ) {
// Remove potential param `type` from url
$url = parse_url( htmlspecialchars_decode( $url ) );
parse_str( $url[ 'query' ], $query );
$built_arr = array_merge( $query, array( Router::TYPE => $type ) );
if ( $append_arr ) {
$built_arr = array_merge( $built_arr, $append_arr );
}
$url[ 'query' ] = http_build_query( $built_arr );
self::compatibility();
$url = http_build_url( $url );
$url = htmlspecialchars( $url, ENT_QUOTES, 'UTF-8' );
}
return $url;
}
/**
* Check if the host is the internal host
*
* @since 1.2.3
*
*/
public static function internal( $host ) {
if ( ! defined( 'LITESPEED_FRONTEND_HOST' ) ) {
if ( defined( 'WP_HOME' ) ) {
$home_host = WP_HOME;// Also think of `WP_SITEURL`
}
else {
$home_host = get_option( 'home' );
}
define( 'LITESPEED_FRONTEND_HOST', parse_url( $home_host, PHP_URL_HOST ) );
}
if ( $host === LITESPEED_FRONTEND_HOST ) {
return true;
}
/**
* Filter for multiple domains
* @since 2.9.4
*/
if ( ! isset( self::$_internal_domains ) ) {
self::$_internal_domains = apply_filters( 'litespeed_internal_domains', array() );
}
if ( self::$_internal_domains ) {
return in_array( $host, self::$_internal_domains );
}
return false;
}
/**
* Check if an URL is a internal existing file
*
* @since 1.2.2
* @since 1.6.2 Moved here from optm.cls due to usage of media.cls
* @access public
* @return string|bool The real path of file OR false
*/
public static function is_internal_file( $url, $addition_postfix = false ) {
if ( substr( $url, 0, 5 ) == 'data:' ) {
Debug2::debug2( '[Util] data: content not file' );
return false;
}
$url_parsed = parse_url( $url );
if ( isset( $url_parsed[ 'host' ] ) && ! self::internal( $url_parsed[ 'host' ] ) ) {
// Check if is cdn path
// Do this to avoid user hardcoded src in tpl
if ( ! CDN::internal( $url_parsed[ 'host' ] ) ) {
Debug2::debug2( '[Util] external' );
return false;
}
}
if ( empty( $url_parsed[ 'path' ] ) ) {
return false;
}
// Need to replace child blog path for assets, ref: .htaccess
if ( is_multisite() && defined( 'PATH_CURRENT_SITE' ) ) {
$pattern = '#^' . PATH_CURRENT_SITE . '([_0-9a-zA-Z-]+/)(wp-(content|admin|includes))#U';
$replacement = PATH_CURRENT_SITE . '$2';
$url_parsed[ 'path' ] = preg_replace( $pattern, $replacement, $url_parsed[ 'path' ] );
// $current_blog = (int) get_current_blog_id();
// $main_blog_id = (int) get_network()->site_id;
// if ( $current_blog === $main_blog_id ) {
// define( 'LITESPEED_IS_MAIN_BLOG', true );
// }
// else {
// define( 'LITESPEED_IS_MAIN_BLOG', false );
// }
}
// Parse file path
/**
* Trying to fix pure /.htaccess rewrite to /wordpress case
*
* Add `define( 'LITESPEED_WP_REALPATH', '/wordpress' );` in wp-config.php in this case
*
* @internal #611001 - Combine & Minify not working?
* @since 1.6.3
*/
if ( substr( $url_parsed[ 'path' ], 0, 1 ) === '/' ) {
if ( defined( 'LITESPEED_WP_REALPATH' ) ) {
$file_path_ori = $_SERVER[ 'DOCUMENT_ROOT' ] . LITESPEED_WP_REALPATH . $url_parsed[ 'path' ];
}
else {
$file_path_ori = $_SERVER[ 'DOCUMENT_ROOT' ] . $url_parsed[ 'path' ];
}
}
else {
$file_path_ori = Router::frontend_path() . '/' . $url_parsed[ 'path' ];
}
/**
* Added new file postfix to be check if passed in
* @since 2.2.4
*/
if ( $addition_postfix ) {
$file_path_ori .= '.' . $addition_postfix;
}
/**
* Added this filter for those plugins which overwrite the filepath
* @see #101091 plugin `Hide My WordPress`
* @since 2.2.3
*/
$file_path_ori = apply_filters( 'litespeed_realpath', $file_path_ori );
$file_path = realpath( $file_path_ori );
if ( ! is_file( $file_path ) ) {
Debug2::debug2( '[Util] file not exist: ' . $file_path_ori );
return false;
}
return array( $file_path, filesize( $file_path ) );
}
/**
* Safely parse URL for v5.3 compatibility
*
* @since 3.4.3
*/
public static function parse_url_safe( $url, $component = -1 ) {
if ( substr( $url, 0, 2 ) == '//' ) {
$url = 'https:' . $url;
}
return parse_url( $url, $component );
}
/**
* Replace url in srcset to new value
*
* @since 2.2.3
*/
public static function srcset_replace( $content, $callback ) {
preg_match_all( '# srcset=([\'"])(.+)\g{1}#iU', $content, $matches );
$srcset_ori = array();
$srcset_final = array();
foreach ( $matches[ 2 ] as $k => $urls_ori ) {
$urls_final = explode( ',', $urls_ori );
$changed = false;
foreach ( $urls_final as $k2 => $url_info ) {
$url_info_arr = explode( ' ', trim( $url_info ) );
if ( ! $url2 = call_user_func( $callback, $url_info_arr[ 0 ] ) ) {
continue;
}
$changed = true;
$urls_final[ $k2 ] = str_replace( $url_info_arr[ 0 ], $url2, $url_info );
Debug2::debug2( '[Util] - srcset replaced to ' . $url2 . ( ! empty( $url_info_arr[ 1 ] ) ? ' ' . $url_info_arr[ 1 ] : '' ) );
}
if ( ! $changed ) {
continue;
}
$urls_final = implode( ',', $urls_final );
$srcset_ori[] = $matches[ 0 ][ $k ];
$srcset_final[] = str_replace( $urls_ori, $urls_final, $matches[ 0 ][ $k ] );
}
if ( $srcset_ori ) {
$content = str_replace( $srcset_ori, $srcset_final, $content );
Debug2::debug2( '[Util] - srcset replaced' );
}
return $content;
}
/**
* Generate pagination
*
* @since 3.0
* @access public
*/
public static function pagination( $total, $limit, $return_offset = false ) {
$pagenum = isset( $_GET[ 'pagenum' ] ) ? absint( $_GET[ 'pagenum' ] ) : 1;
$offset = ( $pagenum - 1 ) * $limit;
$num_of_pages = ceil( $total / $limit );
if ( $offset > $total ) {
$offset = $total - $limit;
}
if ( $offset < 0 ) {
$offset = 0;
}
if ( $return_offset ) {
return $offset;
}
$page_links = paginate_links( array(
'base' => add_query_arg( 'pagenum', '%#%' ),
'format' => '',
'prev_text' => '«',
'next_text' => '»',
'total' => $num_of_pages,
'current' => $pagenum,
) );
return '<div class="tablenav"><div class="tablenav-pages" style="margin: 1em 0">' . $page_links . '</div></div>';
}
/**
* Generate placeholder for an array to query
*
* @since 2.0
* @access public
*/
public static function chunk_placeholder( $data, $fields ) {
$division = substr_count( $fields, ',' ) + 1;
$q = implode( ',', array_map(
function( $el ) { return '(' . implode( ',', $el ) . ')'; },
array_chunk( array_fill( 0, count( $data ), '%s' ), $division )
) );
return $q;
}
}