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<?php
/**
* Wordpress utility functions
*
* Standard: PSR-2
* @link http://www.php-fig.org/psr/psr-2
*
* @package snaplib
* @subpackage classes/utilities
* @copyright (c) 2017, Snapcreek LLC
* @license https://opensource.org/licenses/GPL-3.0 GNU Public License
*
*/
defined('ABSPATH') || defined('DUPXABSPATH') || exit;
if (!class_exists('DupLiteSnapLibUtilWp', false)) {
/**
* Wordpress utility functions
*/
class DupLiteSnapLibUtilWp
{
const PATH_FULL = 0;
const PATH_RELATIVE = 1;
const PATH_AUTO = 2;
private static $corePathList = null;
private static $safeAbsPath = null;
/**
*
* @var string if not empty alters isWpCore's operation
*/
private static $wpCoreRelativePath = '';
/**
* return safe ABSPATH without last /
* perform safe function only one time
*
* @return string
*/
public static function getSafeAbsPath()
{
if (is_null(self::$safeAbsPath)) {
if (defined('ABSPATH')) {
self::$safeAbsPath = DupLiteSnapLibIOU::safePathUntrailingslashit(ABSPATH);
} else {
self::$safeAbsPath = '';
}
}
return self::$safeAbsPath;
}
/**
*
* @param string $folder
* @return boolean // return true if folder is wordpress home folder
*
*/
public static function isWpHomeFolder($folder)
{
$indexPhp = DupLiteSnapLibIOU::trailingslashit($folder).'index.php';
if (!file_exists($indexPhp)) {
return false;
}
if (($indexContent = file_get_contents($indexPhp)) === false) {
return false;
}
return (preg_match('/require\s*[\s\(].*[\'"].*wp-blog-header.php[\'"]\s*\)?/', $indexContent) === 1);
}
/**
* This function is the equivalent of the get_home_path function but with various fixes
*
* @staticvar string $home_path
* @return string
*/
public static function getHomePath()
{
static $home_path = null;
if (is_null($home_path)) {
// outside wordpress this function makes no sense
if (!defined('ABSPATH')) {
$home_path = false;
return $home_path;
}
if (isset($_SERVER['SCRIPT_FILENAME']) && is_readable($_SERVER['SCRIPT_FILENAME'])) {
$scriptFilename = $_SERVER['SCRIPT_FILENAME'];
} else {
$files = get_included_files();
$scriptFilename = array_shift($files);
}
$realScriptDirname = DupLiteSnapLibIOU::safePathTrailingslashit(dirname($scriptFilename), true);
$realAbsPath = DupLiteSnapLibIOU::safePathTrailingslashit(ABSPATH, true);
if (strpos($realScriptDirname, $realAbsPath) === 0) {
// normalize URLs without www
$home = DupLiteSnapLibURLU::wwwRemove(set_url_scheme(get_option('home'), 'http'));
$siteurl = DupLiteSnapLibURLU::wwwRemove(set_url_scheme(get_option('siteurl'), 'http'));
if (!empty($home) && 0 !== strcasecmp($home, $siteurl)) {
if (stripos($siteurl, $home) === 0) {
$wp_path_rel_to_home = str_ireplace($home, '', $siteurl); /* $siteurl - $home */
$pos = strripos(str_replace('\\', '/', $scriptFilename), DupLiteSnapLibIOU::trailingslashit($wp_path_rel_to_home));
$home_path = substr($scriptFilename, 0, $pos);
$home_path = DupLiteSnapLibIOU::trailingslashit($home_path);
} else {
$home_path = ABSPATH;
}
} else {
$home_path = ABSPATH;
}
} else {
// On frontend the home path is the folder of index.php
$home_path = DupLiteSnapLibIOU::trailingslashit(dirname($scriptFilename));
}
// make sure the folder exists or consider ABSPATH
if (!file_exists($home_path)) {
$home_path = ABSPATH;
}
$home_path = str_replace('\\', '/', $home_path);
}
return $home_path;
}
public static function setWpCoreRelativeAbsPath($string = '')
{
self::$wpCoreRelativePath = (string) $string;
}
/**
* check if path is in wordpress core list
*
* @param string $path
* @param int $fullPath // if PATH_AUTO check if is a full path or relative path
* if PATH_FULL remove ABSPATH len without check
* if PATH_RELATIVE consider path a relative path
* @param bool $isSafe // if false call rtrim(DupLiteSnapLibIOU::safePath( PATH ), '/')
* if true consider path a safe path without check
*
* PATH_FULL and PATH_RELATIVE is better optimized and perform less operations
*
* @return boolean
*/
public static function isWpCore($path, $fullPath = self::PATH_AUTO, $isSafe = false)
{
if ($isSafe == false) {
$path = rtrim(DupLiteSnapLibIOU::safePath($path), '/');
}
switch ($fullPath) {
case self::PATH_FULL:
$absPath = self::getSafeAbsPath();
if (strlen($path) < strlen($absPath)) {
return false;
}
$relPath = ltrim(substr($path, strlen($absPath)), '/');
break;
case self::PATH_RELATIVE:
if (($relPath = DupLiteSnapLibIOU::getRelativePath($path, self::$wpCoreRelativePath)) === false) {
return false;
}
break;
case self::PATH_AUTO:
default:
$absPath = self::getSafeAbsPath();
if (strpos($path, $absPath) === 0) {
$relPath = ltrim(substr($path, strlen($absPath)), '/');
} else {
$relPath = ltrim($path, '/');
}
}
// if rel path is empty is consider root path so is a core folder.
if (empty($relPath)) {
return true;
}
$pExploded = explode('/', $relPath);
$corePaths = self::getCorePathsList();
foreach ($pExploded as $current) {
if (!isset($corePaths[$current])) {
return false;
}
$corePaths = $corePaths[$current];
}
return true;
}
/**
* get core path list from relative abs path
* [
* 'folder' => [
* 's-folder1' => [
* file1 => [],
* file2 => [],
* ],
* 's-folder2' => [],
* file1 => []
* ]
* ]
*
* @return array
*/
public static function getCorePathsList()
{
if (is_null(self::$corePathList)) {
require_once(dirname(__FILE__).'/wordpress.core.files.php');
}
return self::$corePathList;
}
/**
* return object list of sites
*
* @return boolean
*/
public static function getSites($args = array())
{
if (!function_exists('is_multisite') || !is_multisite()) {
return false;
}
if (function_exists('get_sites')) {
return get_sites($args);
} else {
$result = array();
$blogs = wp_get_sites($args);
foreach ($blogs as $blog) {
$result[] = (object) $blog;
}
return $result;
}
}
}
}
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