File "utility.cls.php"
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Charset: utf-8
<?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, $forward = false)
{
if (strlen($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 $forward ? __('right now', 'litespeed-cache') : __('just now', 'litespeed-cache');
}
$res = $forward ? $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 $url;
}
/**
* Validate ip v4
* @since 5.5
*/
public static function valid_ipv4($ip)
{
return filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 | FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE);
}
/**
* 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 $type String handler type
* @return string|array
*/
public static function sanitize_lines($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 slash, `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;
}
}