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File Content: `elFinderVolumeLocalFileSystem.class.php`

<?php

// Implement similar functionality in PHP 5.2 or 5.3
// http://php.net/manual/class.recursivecallbackfilteriterator.php#110974
if (!class_exists('RecursiveCallbackFilterIterator', false)) {
    class RecursiveCallbackFilterIterator extends RecursiveFilterIterator
    {
        private $callback;

        public function __construct(RecursiveIterator $iterator, $callback)
        {
            $this->callback = $callback;
            parent::__construct($iterator);
        }

        public function accept()
        {
            return call_user_func($this->callback, parent::current(), parent::key(), parent::getInnerIterator());
        }

        public function getChildren()
        {
            return new self($this->getInnerIterator()->getChildren(), $this->callback);
        }
    }
}

/**
 * elFinder driver for local filesystem.
 *
 * @author Dmitry (dio) Levashov
 * @author Troex Nevelin
 **/
class elFinderVolumeLocalFileSystem extends elFinderVolumeDriver
{

    /**
     * Driver id
     * Must be started from letter and contains [a-z0-9]
     * Used as part of volume id
     *
     * @var string
     **/
    protected $driverId = 'l';

    /**
     * Required to count total archive files size
     *
     * @var int
     **/
    protected $archiveSize = 0;

    /**
     * Is checking stat owner
     *
     * @var        boolean
     */
    protected $statOwner = false;

    /**
     * Path to quarantine directory
     *
     * @var string
     */
    private $quarantine;

    /**
     * Constructor
     * Extend options with required fields
     *
     * @author Dmitry (dio) Levashov
     */
    public function __construct()
    {
        $this->options['alias'] = '';              // alias to replace root dir name
        $this->options['dirMode'] = 0755;            // new dirs mode
        $this->options['fileMode'] = 0644;            // new files mode
        $this->options['rootCssClass'] = 'elfinder-navbar-root-local';
        $this->options['followSymLinks'] = true;
        $this->options['detectDirIcon'] = '';         // file name that is detected as a folder icon e.g. '.diricon.png'
        $this->options['keepTimestamp'] = array('copy', 'move'); // keep timestamp at inner filesystem allowed 'copy', 'move' and 'upload'
        $this->options['substituteImg'] = true;       // support substitute image with dim command
        $this->options['statCorrector'] = null;       // callable to correct stat data `function(&$stat, $path, $statOwner, $volumeDriveInstance){}`
        if (DIRECTORY_SEPARATOR === '/') {
            // Linux
            $this->options['acceptedName'] = '/^[^\.\/\x00][^\/\x00]*$/';
        } else {
            // Windows
            $this->options['acceptedName'] = '/^[^\.\/\x00\\\:*?"<>|][^\/\x00\\\:*?"<>|]*$/';
        }
    }

    /*********************************************************************/
    /*                        INIT AND CONFIGURE                         */
    /*********************************************************************/

    /**
     * Prepare driver before mount volume.
     * Return true if volume is ready.
     *
     * @return bool
     **/
    protected function init()
    {
        // Normalize directory separator for windows
        if (DIRECTORY_SEPARATOR !== '/') {
            foreach (array('path', 'tmbPath', 'tmpPath', 'quarantine') as $key) {
                if (!empty($this->options[$key])) {
                    $this->options[$key] = str_replace('/', DIRECTORY_SEPARATOR, $this->options[$key]);
                }
            }
            // PHP >= 7.1 Supports UTF-8 path on Windows
            if (version_compare(PHP_VERSION, '7.1', '>=')) {
                $this->options['encoding'] = '';
                $this->options['locale'] = '';
            }
        }
        if (!$cwd = getcwd()) {
            return $this->setError('elFinder LocalVolumeDriver requires a result of getcwd().');
        }
        // detect systemRoot
        if (!isset($this->options['systemRoot'])) {
            if ($cwd[0] === DIRECTORY_SEPARATOR || $this->root[0] === DIRECTORY_SEPARATOR) {
                $this->systemRoot = DIRECTORY_SEPARATOR;
            } else if (preg_match('/^([a-zA-Z]:' . preg_quote(DIRECTORY_SEPARATOR, '/') . ')/', $this->root, $m)) {
                $this->systemRoot = $m[1];
            } else if (preg_match('/^([a-zA-Z]:' . preg_quote(DIRECTORY_SEPARATOR, '/') . ')/', $cwd, $m)) {
                $this->systemRoot = $m[1];
            }
        }
        $this->root = $this->getFullPath($this->root, $cwd);
        if (!empty($this->options['startPath'])) {
            $this->options['startPath'] = $this->getFullPath($this->options['startPath'], $this->root);
        }

        if (is_null($this->options['syncChkAsTs'])) {
            $this->options['syncChkAsTs'] = true;
        }
        if (is_null($this->options['syncCheckFunc'])) {
            $this->options['syncCheckFunc'] = array($this, 'localFileSystemInotify');
        }
        // check 'statCorrector'
        if (empty($this->options['statCorrector']) || !is_callable($this->options['statCorrector'])) {
            $this->options['statCorrector'] = null;
        }

        return true;
    }

    /**
     * Configure after successfull mount.
     *
     * @return void
     * @throws elFinderAbortException
     * @author Dmitry (dio) Levashov
     */
    protected function configure()
    {
        $hiddens = array();
        $root = $this->stat($this->root);

        // check thumbnails path
        if (!empty($this->options['tmbPath'])) {
            if (strpos($this->options['tmbPath'], DIRECTORY_SEPARATOR) === false) {
                $hiddens['tmb'] = $this->options['tmbPath'];
                $this->options['tmbPath'] = $this->_abspath($this->options['tmbPath']);
            } else {
                $this->options['tmbPath'] = $this->_normpath($this->options['tmbPath']);
            }
        }
        // check temp path
        if (!empty($this->options['tmpPath'])) {
            if (strpos($this->options['tmpPath'], DIRECTORY_SEPARATOR) === false) {
                $hiddens['temp'] = $this->options['tmpPath'];
                $this->options['tmpPath'] = $this->_abspath($this->options['tmpPath']);
            } else {
                $this->options['tmpPath'] = $this->_normpath($this->options['tmpPath']);
            }
        }
        // check quarantine path
        $_quarantine = '';
        if (!empty($this->options['quarantine'])) {
            if (strpos($this->options['quarantine'], DIRECTORY_SEPARATOR) === false) {
                //$hiddens['quarantine'] = $this->options['quarantine'];
                //$this->options['quarantine'] = $this->_abspath($this->options['quarantine']);
                $_quarantine = $this->_abspath($this->options['quarantine']);
                $this->options['quarantine'] = '';
            } else {
                $this->options['quarantine'] = $this->_normpath($this->options['quarantine']);
            }
        } else {
            $_quarantine = $this->_abspath('.quarantine');
        }
        is_dir($_quarantine) && self::localRmdirRecursive($_quarantine);

        parent::configure();

        // check tmbPath
        if (!$this->tmbPath && isset($hiddens['tmb'])) {
            unset($hiddens['tmb']);
        }

        // if no thumbnails url - try detect it
        if ($root['read'] && !$this->tmbURL && $this->URL) {
            if (strpos($this->tmbPath, $this->root) === 0) {
                $this->tmbURL = $this->URL . str_replace(DIRECTORY_SEPARATOR, '/', substr($this->tmbPath, strlen($this->root) + 1));
                if (preg_match("|[^/?&=]$|", $this->tmbURL)) {
                    $this->tmbURL .= '/';
                }
            }
        }

        // set $this->tmp by options['tmpPath']
        $this->tmp = '';
        if (!empty($this->options['tmpPath'])) {
            if ((is_dir($this->options['tmpPath']) || mkdir($this->options['tmpPath'], $this->options['dirMode'], true)) && is_writable($this->options['tmpPath'])) {
                $this->tmp = $this->options['tmpPath'];
            } else {
                if (isset($hiddens['temp'])) {
                    unset($hiddens['temp']);
                }
            }
        }
        if (!$this->tmp && ($tmp = elFinder::getStaticVar('commonTempPath'))) {
            $this->tmp = $tmp;
        }

        // check quarantine dir
        $this->quarantine = '';
        if (!empty($this->options['quarantine'])) {
            if ((is_dir($this->options['quarantine']) || mkdir($this->options['quarantine'], $this->options['dirMode'], true)) && is_writable($this->options['quarantine'])) {
                $this->quarantine = $this->options['quarantine'];
            } else {
                if (isset($hiddens['quarantine'])) {
                    unset($hiddens['quarantine']);
                }
            }
        } else if ($_path = elFinder::getCommonTempPath()) {
            $this->quarantine = $_path;
        }

        if (!$this->quarantine) {
            if (!$this->tmp) {
                $this->archivers['extract'] = array();
                $this->disabled[] = 'extract';
            } else {
                $this->quarantine = $this->tmp;
            }
        }

        if ($hiddens) {
            foreach ($hiddens as $hidden) {
                $this->attributes[] = array(
                    'pattern' => '~^' . preg_quote(DIRECTORY_SEPARATOR . $hidden, '~') . '$~',
                    'read' => false,
                    'write' => false,
                    'locked' => true,
                    'hidden' => true
                );
            }
        }

        if (!empty($this->options['keepTimestamp'])) {
            $this->options['keepTimestamp'] = array_flip($this->options['keepTimestamp']);
        }

        $this->statOwner = (!empty($this->options['statOwner']));

        // enable WinRemoveTailDots plugin on Windows server
        if (DIRECTORY_SEPARATOR !== '/') {
            if (!isset($this->options['plugin'])) {
                $this->options['plugin'] = array();
            }
            $this->options['plugin']['WinRemoveTailDots'] = array('enable' => true);
        }
    }

    /**
     * Long pooling sync checker
     * This function require server command `inotifywait`
     * If `inotifywait` need full path, Please add `define('ELFINER_INOTIFYWAIT_PATH', '/PATH_TO/inotifywait');` into connector.php
     *
     * @param string $path
     * @param int    $standby
     * @param number $compare
     *
     * @return number|bool
     * @throws elFinderAbortException
     */
    public function localFileSystemInotify($path, $standby, $compare)
    {
        if (isset($this->sessionCache['localFileSystemInotify_disable'])) {
            return false;
        }
        $path = realpath($path);
        $mtime = filemtime($path);
        if (!$mtime) {
            return false;
        }
        if ($mtime != $compare) {
            return $mtime;
        }
        $inotifywait = defined('ELFINER_INOTIFYWAIT_PATH') ? ELFINER_INOTIFYWAIT_PATH : 'inotifywait';
        $standby = max(1, intval($standby));
        $cmd = $inotifywait . ' ' . escapeshellarg($path) . ' -t ' . $standby . ' -e moved_to,moved_from,move,close_write,delete,delete_self';
        $this->procExec($cmd, $o, $r);
        if ($r === 0) {
            // changed
            clearstatcache();
            if (file_exists($path)) {
                $mtime = filemtime($path); // error on busy?
                return $mtime ? $mtime : time();
            } else {
                // target was removed
                return 0;
            }
        } else if ($r === 2) {
            // not changed (timeout)
            return $compare;
        }
        // error
        // cache to $_SESSION
        $this->sessionCache['localFileSystemInotify_disable'] = true;
        $this->session->set($this->id, $this->sessionCache);
        return false;
    }

    /*********************************************************************/
    /*                               FS API                              */
    /*********************************************************************/

    /*********************** paths/urls *************************/

    /**
     * Return parent directory path
     *
     * @param  string $path file path
     *
     * @return string
     * @author Dmitry (dio) Levashov
     **/
    protected function _dirname($path)
    {
        return dirname($path);
    }

    /**
     * Return file name
     *
     * @param  string $path file path
     *
     * @return string
     * @author Dmitry (dio) Levashov
     **/
    protected function _basename($path)
    {
        return basename($path);
    }

    /**
     * Join dir name and file name and retur full path
     *
     * @param  string $dir
     * @param  string $name
     *
     * @return string
     * @author Dmitry (dio) Levashov
     **/
    protected function _joinPath($dir, $name)
    {
        $dir = rtrim($dir, DIRECTORY_SEPARATOR);
        $path = realpath($dir . DIRECTORY_SEPARATOR . $name);
        // realpath() returns FALSE if the file does not exist
        if ($path === false || strpos($path, $this->root) !== 0) {
            if (DIRECTORY_SEPARATOR !== '/') {
                $dir = str_replace('/', DIRECTORY_SEPARATOR, $dir);
                $name = str_replace('/', DIRECTORY_SEPARATOR, $name);
            }
            // Directory traversal measures
            if (strpos($dir, '..' . DIRECTORY_SEPARATOR) !== false || substr($dir, -2) == '..') {
                $dir = $this->root;
            }
            if (strpos($name, '..' . DIRECTORY_SEPARATOR) !== false) {
                $name = basename($name);
            }
            $path = $dir . DIRECTORY_SEPARATOR . $name;
        }
        return $path; 
    }

    /**
     * Return normalized path, this works the same as os.path.normpath() in Python
     *
     * @param  string $path path
     *
     * @return string
     * @author Troex Nevelin
     **/
    protected function _normpath($path)
    {
        if (empty($path)) {
            return '.';
        }

        $changeSep = (DIRECTORY_SEPARATOR !== '/');
        if ($changeSep) {
            $drive = '';
            if (preg_match('/^([a-zA-Z]:)(.*)/', $path, $m)) {
                $drive = $m[1];
                $path = $m[2] ? $m[2] : '/';
            }
            $path = str_replace(DIRECTORY_SEPARATOR, '/', $path);
        }

        if (strpos($path, '/') === 0) {
            $initial_slashes = true;
        } else {
            $initial_slashes = false;
        }

        if (($initial_slashes)
            && (strpos($path, '//') === 0)
            && (strpos($path, '///') === false)) {
            $initial_slashes = 2;
        }

        $initial_slashes = (int)$initial_slashes;

        $comps = explode('/', $path);
        $new_comps = array();
        foreach ($comps as $comp) {
            if (in_array($comp, array('', '.'))) {
                continue;
            }

            if (($comp != '..')
                || (!$initial_slashes && !$new_comps)
                || ($new_comps && (end($new_comps) == '..'))) {
                array_push($new_comps, $comp);
            } elseif ($new_comps) {
                array_pop($new_comps);
            }
        }
        $comps = $new_comps;
        $path = implode('/', $comps);
        if ($initial_slashes) {
            $path = str_repeat('/', $initial_slashes) . $path;
        }

        if ($changeSep) {
            $path = $drive . str_replace('/', DIRECTORY_SEPARATOR, $path);
        }

        return $path ? $path : '.';
    }

    /**
     * Return file path related to root dir
     *
     * @param  string $path file path
     *
     * @return string
     * @author Dmitry (dio) Levashov
     **/
    protected function _relpath($path)
    {
        if ($path === $this->root) {
            return '';
        } else {
            if (strpos($path, $this->root) === 0) {
                return ltrim(substr($path, strlen($this->root)), DIRECTORY_SEPARATOR);
            } else {
                // for link
                return $path;
            }
        }
    }

    /**
     * Convert path related to root dir into real path
     *
     * @param  string $path file path
     *
     * @return string
     * @author Dmitry (dio) Levashov
     **/
    protected function _abspath($path)
    {
        if ($path === DIRECTORY_SEPARATOR) {
            return $this->root;
        } else {
            $path = $this->_normpath($path);
            if (strpos($path, $this->systemRoot) === 0) {
                return $path;
            } else if (DIRECTORY_SEPARATOR !== '/' && preg_match('/^[a-zA-Z]:' . preg_quote(DIRECTORY_SEPARATOR, '/') . '/', $path)) {
                return $path;
            } else {
                return $this->_joinPath($this->root, $path);
            }
        }
    }

    /**
     * Return fake path started from root dir
     *
     * @param  string $path file path
     *
     * @return string
     * @author Dmitry (dio) Levashov
     **/
    protected function _path($path)
    {
        return $this->rootName . ($path == $this->root ? '' : $this->separator . $this->_relpath($path));
    }

    /**
     * Return true if $path is children of $parent
     *
     * @param  string $path   path to check
     * @param  string $parent parent path
     *
     * @return bool
     * @author Dmitry (dio) Levashov
     **/
    protected function _inpath($path, $parent)
    {
        $cwd = getcwd();
        $real_path = $this->getFullPath($path, $cwd);
        $real_parent = $this->getFullPath($parent, $cwd);
        if ($real_path && $real_parent) {
            return $real_path === $real_parent || strpos($real_path, rtrim($real_parent, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR) === 0;
        }
        return false;
    }



    /***************** file stat ********************/

    /**
     * Return stat for given path.
     * Stat contains following fields:
     * - (int)    size    file size in b. required
     * - (int)    ts      file modification time in unix time. required
     * - (string) mime    mimetype. required for folders, others - optionally
     * - (bool)   read    read permissions. required
     * - (bool)   write   write permissions. required
     * - (bool)   locked  is object locked. optionally
     * - (bool)   hidden  is object hidden. optionally
     * - (string) alias   for symlinks - link target path relative to root path. optionally
     * - (string) target  for symlinks - link target path. optionally
     * If file does not exists - returns empty array or false.
     *
     * @param  string $path file path
     *
     * @return array|false
     * @author Dmitry (dio) Levashov
     **/
    protected function _stat($path)
    {
        $stat = array();

        if (!file_exists($path) && !is_link($path)) {
            return $stat;
        }

        //Verifies the given path is the root or is inside the root. Prevents directory traveral.
        if (!$this->_inpath($path, $this->root)) {
            return $stat;
        }

        $stat['isowner'] = false;
        $linkreadable = false;
        if ($path != $this->root && is_link($path)) {
            if (!$this->options['followSymLinks']) {
                return array();
            }
            if (!($target = $this->readlink($path))
                || $target == $path) {
                if (is_null($target)) {
                    $stat = array();
                    return $stat;
                } else {
                    $stat['mime'] = 'symlink-broken';
                    $target = readlink($path);
                    $lstat = lstat($path);
                    $ostat = $this->getOwnerStat($lstat['uid'], $lstat['gid']);
                    $linkreadable = !empty($ostat['isowner']);
                }
            }
            $stat['alias'] = $this->_path($target);
            $stat['target'] = $target;
        }

        $readable = is_readable($path);

        if ($readable) {
            $size = sprintf('%u', filesize($path));
            $stat['ts'] = filemtime($path);
            if ($this->statOwner) {
                $fstat = stat($path);
                $uid = $fstat['uid'];
                $gid = $fstat['gid'];
                $stat['perm'] = substr((string)decoct($fstat['mode']), -4);
                $stat = array_merge($stat, $this->getOwnerStat($uid, $gid));
            }
        }

        if (($dir = is_dir($path)) && $this->options['detectDirIcon']) {
            $favicon = $path . DIRECTORY_SEPARATOR . $this->options['detectDirIcon'];
            if ($this->URL && file_exists($favicon)) {
                $stat['icon'] = $this->URL . str_replace(DIRECTORY_SEPARATOR, '/', substr($favicon, strlen($this->root) + 1));
            }
        }

        if (!isset($stat['mime'])) {
            $stat['mime'] = $dir ? 'directory' : $this->mimetype($path);
        }
        //logical rights first
        $stat['read'] = ($linkreadable || $readable) ? null : false;
        $stat['write'] = is_writable($path) ? null : false;

        if (is_null($stat['read'])) {
            if ($dir) {
                $stat['size'] = 0;
            } else if (isset($size)) {
                $stat['size'] = $size;
            }
        }

        if ($this->options['statCorrector']) {
            call_user_func_array($this->options['statCorrector'], array(&$stat, $path, $this->statOwner, $this));
        }

        return $stat;
    }

    /**
     * Get stat `owner`, `group` and `isowner` by `uid` and `gid`
     * Sub-fuction of _stat() and _scandir()
     *
     * @param integer $uid
     * @param integer $gid
     *
     * @return array  stat
     */
    protected function getOwnerStat($uid, $gid)
    {
        static $names = null;
        static $phpuid = null;

        if (is_null($names)) {
            $names = array('uid' => array(), 'gid' => array());
        }
        if (is_null($phpuid)) {
            if (is_callable('posix_getuid')) {
                $phpuid = posix_getuid();
            } else {
                $phpuid = 0;
            }
        }

        $stat = array();

        if ($uid) {
            $stat['isowner'] = ($phpuid == $uid);
            if (isset($names['uid'][$uid])) {
                $stat['owner'] = $names['uid'][$uid];
            } else if (is_callable('posix_getpwuid')) {
                $pwuid = posix_getpwuid($uid);
                $stat['owner'] = $names['uid'][$uid] = $pwuid['name'];
            } else {
                $stat['owner'] = $names['uid'][$uid] = $uid;
            }
        }
        if ($gid) {
            if (isset($names['gid'][$gid])) {
                $stat['group'] = $names['gid'][$gid];
            } else if (is_callable('posix_getgrgid')) {
                $grgid = posix_getgrgid($gid);
                $stat['group'] = $names['gid'][$gid] = $grgid['name'];
            } else {
                $stat['group'] = $names['gid'][$gid] = $gid;
            }
        }

        return $stat;
    }

    /**
     * Return true if path is dir and has at least one childs directory
     *
     * @param  string $path dir path
     *
     * @return bool
     * @author Dmitry (dio) Levashov
     **/
    protected function _subdirs($path)
    {

        $dirs = false;
        if (is_dir($path) && is_readable($path)) {
            if (class_exists('FilesystemIterator', false)) {
                $dirItr = new ParentIterator(
                    new RecursiveDirectoryIterator($path,
                        FilesystemIterator::SKIP_DOTS |
                        FilesystemIterator::CURRENT_AS_SELF |
                        (defined('RecursiveDirectoryIterator::FOLLOW_SYMLINKS') ?
                            RecursiveDirectoryIterator::FOLLOW_SYMLINKS : 0)
                    )
                );
                $dirItr->rewind();
                if ($dirItr->hasChildren()) {
                    $dirs = true;
                    $name = $dirItr->getSubPathName();
                    while ($dirItr->valid()) {
                        if (!$this->attr($path . DIRECTORY_SEPARATOR . $name, 'read', null, true)) {
                            $dirs = false;
                            $dirItr->next();
                            $name = $dirItr->getSubPathName();
                            continue;
                        }
                        $dirs = true;
                        break;
                    }
                }
            } else {
                $path = strtr($path, array('[' => '\\[', ']' => '\\]', '*' => '\\*', '?' => '\\?'));
                return (bool)glob(rtrim($path, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . '*', GLOB_ONLYDIR);
            }
        }
        return $dirs;
    }

    /**
     * Return object width and height
     * Usualy used for images, but can be realize for video etc...
     *
     * @param  string $path file path
     * @param  string $mime file mime type
     *
     * @return string
     * @author Dmitry (dio) Levashov
     **/
    protected function _dimensions($path, $mime)
    {
        clearstatcache();
        return strpos($mime, 'image') === 0 && is_readable($path) && filesize($path) && ($s = getimagesize($path)) !== false
            ? $s[0] . 'x' . $s[1]
            : false;
    }
    /******************** file/dir content *********************/

    /**
     * Return symlink target file
     *
     * @param  string $path link path
     *
     * @return string
     * @author Dmitry (dio) Levashov
     **/
    protected function readlink($path)
    {
        if (!($target = readlink($path))) {
            return null;
        }

        if (strpos($target, $this->systemRoot) !== 0) {
            $target = $this->_joinPath(dirname($path), $target);
        }

        if (!file_exists($target)) {
            return false;
        }

        return $target;
    }

    /**
     * Return files list in directory.
     *
     * @param  string $path dir path
     *
     * @return array
     * @throws elFinderAbortException
     * @author Dmitry (dio) Levashov
     */
    protected function _scandir($path)
    {
        elFinder::checkAborted();
        $files = array();
        $cache = array();
        $dirWritable = is_writable($path);
        $dirItr = array();
        $followSymLinks = $this->options['followSymLinks'];
        try {
            $dirItr = new DirectoryIterator($path);
        } catch (UnexpectedValueException $e) {
        }

        foreach ($dirItr as $file) {
            try {
                if ($file->isDot()) {
                    continue;
                }

                $files[] = $fpath = $file->getPathname();

                $br = false;
                $stat = array();

                $stat['isowner'] = false;
                $linkreadable = false;
                if ($file->isLink()) {
                    if (!$followSymLinks) {
                        continue;
                    }
                    if (!($target = $this->readlink($fpath))
                        || $target == $fpath) {
                        if (is_null($target)) {
                            $stat = array();
                            $br = true;
                        } else {
                            $_path = $fpath;
                            $stat['mime'] = 'symlink-broken';
                            $target = readlink($_path);
                            $lstat = lstat($_path);
                            $ostat = $this->getOwnerStat($lstat['uid'], $lstat['gid']);
                            $linkreadable = !empty($ostat['isowner']);
                            $dir = false;
                            $stat['alias'] = $this->_path($target);
                            $stat['target'] = $target;
                        }
                    } else {
                        $dir = is_dir($target);
                        $stat['alias'] = $this->_path($target);
                        $stat['target'] = $target;
                        $stat['mime'] = $dir ? 'directory' : $this->mimetype($stat['alias']);
                    }
                } else {
                    if (($dir = $file->isDir()) && $this->options['detectDirIcon']) {
                        $path = $file->getPathname();
                        $favicon = $path . DIRECTORY_SEPARATOR . $this->options['detectDirIcon'];
                        if ($this->URL && file_exists($favicon)) {
                            $stat['icon'] = $this->URL . str_replace(DIRECTORY_SEPARATOR, '/', substr($favicon, strlen($this->root) + 1));
                        }
                    }
                    $stat['mime'] = $dir ? 'directory' : $this->mimetype($fpath);
                }
                $size = sprintf('%u', $file->getSize());
                $stat['ts'] = $file->getMTime();
                if (!$br) {
                    if ($this->statOwner && !$linkreadable) {
                        $uid = $file->getOwner();
                        $gid = $file->getGroup();
                        $stat['perm'] = substr((string)decoct($file->getPerms()), -4);
                        $stat = array_merge($stat, $this->getOwnerStat($uid, $gid));
                    }

                    //logical rights first
                    $stat['read'] = ($linkreadable || $file->isReadable()) ? null : false;
                    $stat['write'] = $file->isWritable() ? null : false;
                    $stat['locked'] = $dirWritable ? null : true;

                    if (is_null($stat['read'])) {
                        $stat['size'] = $dir ? 0 : $size;
                    }

                    if ($this->options['statCorrector']) {
                        call_user_func_array($this->options['statCorrector'], array(&$stat, $fpath, $this->statOwner, $this));
                    }
                }

                $cache[] = array($fpath, $stat);
            } catch (RuntimeException $e) {
                continue;
            }
        }

        if ($cache) {
            $cache = $this->convEncOut($cache, false);
            foreach ($cache as $d) {
                $this->updateCache($d[0], $d[1]);
            }
        }

        return $files;
    }

    /**
     * Open file and return file pointer
     *
     * @param  string $path file path
     * @param string  $mode
     *
     * @return false|resource
     * @internal param bool $write open file for writing
     * @author   Dmitry (dio) Levashov
     */
    protected function _fopen($path, $mode = 'rb')
    {
        return fopen($path, $mode);
    }

    /**
     * Close opened file
     *
     * @param  resource $fp file pointer
     * @param string    $path
     *
     * @return bool
     * @author Dmitry (dio) Levashov
     */
    protected function _fclose($fp, $path = '')
    {
        return (is_resource($fp) && fclose($fp));
    }

    /********************  file/dir manipulations *************************/

    /**
     * Create dir and return created dir path or false on failed
     *
     * @param  string $path parent dir path
     * @param string  $name new directory name
     *
     * @return string|bool
     * @author Dmitry (dio) Levashov
     **/
    protected function _mkdir($path, $name)
    {
        $path = $this->_joinPath($path, $name);

        if (mkdir($path)) {
            chmod($path, $this->options['dirMode']);
            return $path;
        }

        return false;
    }

    /**
     * Create file and return it's path or false on failed
     *
     * @param  string $path parent dir path
     * @param string  $name new file name
     *
     * @return string|bool
     * @author Dmitry (dio) Levashov
     **/
    protected function _mkfile($path, $name)
    {
        $path = $this->_joinPath($path, $name);

        if (($fp = fopen($path, 'w'))) {
            fclose($fp);
            chmod($path, $this->options['fileMode']);
            return $path;
        }
        return false;
    }

    /**
     * Create symlink
     *
     * @param  string $source    file to link to
     * @param  string $targetDir folder to create link in
     * @param  string $name      symlink name
     *
     * @return bool
     * @author Dmitry (dio) Levashov
     **/
    protected function _symlink($source, $targetDir, $name)
    {
        return $this->localFileSystemSymlink($source, $this->_joinPath($targetDir, $name));
    }

    /**
     * Copy file into another file
     *
     * @param  string $source    source file path
     * @param  string $targetDir target directory path
     * @param  string $name      new file name
     *
     * @return bool
     * @author Dmitry (dio) Levashov
     **/
    protected function _copy($source, $targetDir, $name)
    {
        $mtime = filemtime($source);
        $target = $this->_joinPath($targetDir, $name);
        if ($ret = copy($source, $target)) {
            isset($this->options['keepTimestamp']['copy']) && $mtime && touch($target, $mtime);
        }
        return $ret;
    }

    /**
     * Move file into another parent dir.
     * Return new file path or false.
     *
     * @param  string $source source file path
     * @param         $targetDir
     * @param  string $name   file name
     *
     * @return bool|string
     * @internal param string $target target dir path
     * @author   Dmitry (dio) Levashov
     */
    protected function _move($source, $targetDir, $name)
    {
        $mtime = filemtime($source);
        $target = $this->_joinPath($targetDir, $name);
        if ($ret = rename($source, $target) ? $target : false) {
            isset($this->options['keepTimestamp']['move']) && $mtime && touch($target, $mtime);
        }
        return $ret;
    }

    /**
     * Remove file
     *
     * @param  string $path file path
     *
     * @return bool
     * @author Dmitry (dio) Levashov
     **/
    protected function _unlink($path)
    {
        return is_file($path) && unlink($path);
    }

    /**
     * Remove dir
     *
     * @param  string $path dir path
     *
     * @return bool
     * @author Dmitry (dio) Levashov
     **/
    protected function _rmdir($path)
    {
        return rmdir($path);
    }

    /**
     * Create new file and write into it from file pointer.
     * Return new file path or false on error.
     *
     * @param  resource $fp   file pointer
     * @param  string   $dir  target dir path
     * @param  string   $name file name
     * @param  array    $stat file stat (required by some virtual fs)
     *
     * @return bool|string
     * @author Dmitry (dio) Levashov
     **/
    protected function _save($fp, $dir, $name, $stat)
    {
        $path = $this->_joinPath($dir, $name);

        $meta = stream_get_meta_data($fp);
        $uri = isset($meta['uri']) ? $meta['uri'] : '';
        if ($uri && !preg_match('#^[a-zA-Z0-9]+://#', $uri) && !is_link($uri)) {
            fclose($fp);
            $mtime = filemtime($uri);
            $isCmdPaste = ($this->ARGS['cmd'] === 'paste');
            $isCmdCopy = ($isCmdPaste && empty($this->ARGS['cut']));
            if (($isCmdCopy || !rename($uri, $path)) && !copy($uri, $path)) {
                return false;
            }
            // keep timestamp on upload
            if ($mtime && $this->ARGS['cmd'] === 'upload') {
                touch($path, isset($this->options['keepTimestamp']['upload']) ? $mtime : time());
            }
        } else {
            if (file_put_contents($path, $fp, LOCK_EX) === false) {
                return false;
            }
        }

        chmod($path, $this->options['fileMode']);
        return $path;
    }

    /**
     * Get file contents
     *
     * @param  string $path file path
     *
     * @return string|false
     * @author Dmitry (dio) Levashov
     **/
    protected function _getContents($path)
    {
        return file_get_contents($path);
    }

    /**
     * Write a string to a file
     *
     * @param  string $path    file path
     * @param  string $content new file content
     *
     * @return bool
     * @author Dmitry (dio) Levashov
     **/
    protected function _filePutContents($path, $content)
    {
        return (file_put_contents($path, $content, LOCK_EX) !== false);
    }

    /**
     * Detect available archivers
     *
     * @return void
     * @throws elFinderAbortException
     */
    protected function _checkArchivers()
    {
        $this->archivers = $this->getArchivers();
        return;
    }

    /**
     * chmod availability
     *
     * @param string $path
     * @param string $mode
     *
     * @return bool
     */
    protected function _chmod($path, $mode)
    {
        $modeOct = is_string($mode) ? octdec($mode) : octdec(sprintf("%04o", $mode));
        return chmod($path, $modeOct);
    }

    /**
     * Recursive symlinks search
     *
     * @param  string $path file/dir path
     *
     * @return bool
     * @throws Exception
     * @author Dmitry (dio) Levashov
     */
    protected function _findSymlinks($path)
    {
        return self::localFindSymlinks($path);
    }

    /**
     * Extract files from archive
     *
     * @param  string $path archive path
     * @param  array  $arc  archiver command and arguments (same as in $this->archivers)
     *
     * @return array|string|boolean
     * @throws elFinderAbortException
     * @author Dmitry (dio) Levashov,
     * @author Alexey Sukhotin
     */
    protected function _extract($path, $arc)
    {

        if ($this->quarantine) {

            $dir = $this->quarantine . DIRECTORY_SEPARATOR . md5(basename($path) . mt_rand());
            $archive = (isset($arc['toSpec']) || $arc['cmd'] === 'phpfunction') ? '' : $dir . DIRECTORY_SEPARATOR . basename($path);

            if (!mkdir($dir)) {
                return false;
            }

            // insurance unexpected shutdown
            register_shutdown_function(array($this, 'rmdirRecursive'), realpath($dir));

            chmod($dir, 0777);

            // copy in quarantine
            if (!is_readable($path) || ($archive && !copy($path, $archive))) {
                return false;
            }

            // extract in quarantine
            try {
                $this->unpackArchive($path, $arc, $archive ? true : $dir);
            } catch(Exception $e) {
                return $this->setError($e->getMessage());
            }

            // get files list
            try {
                $ls = self::localScandir($dir);
            } catch (Exception $e) {
                return false;
            }

            // no files - extract error ?
            if (empty($ls)) {
                return false;
            }

            $this->archiveSize = 0;

            // find symlinks and check extracted items
            $checkRes = $this->checkExtractItems($dir);
            if ($checkRes['symlinks']) {
                self::localRmdirRecursive($dir);
                return $this->setError(array_merge($this->error, array(elFinder::ERROR_ARC_SYMLINKS)));
            }
            $this->archiveSize = $checkRes['totalSize'];
            if ($checkRes['rmNames']) {
                foreach ($checkRes['rmNames'] as $name) {
                    $this->addError(elFinder::ERROR_SAVE, $name);
                }
            }

            // check max files size
            if ($this->options['maxArcFilesSize'] > 0 && $this->options['maxArcFilesSize'] < $this->archiveSize) {
                $this->delTree($dir);
                return $this->setError(elFinder::ERROR_ARC_MAXSIZE);
            }

            $extractTo = $this->extractToNewdir; // 'auto', ture or false

            // archive contains one item - extract in archive dir
            $name = '';
            $src = $dir . DIRECTORY_SEPARATOR . $ls[0];
            if (($extractTo === 'auto' || !$extractTo) && count($ls) === 1 && is_file($src)) {
                $name = $ls[0];
            } else if ($extractTo === 'auto' || $extractTo) {
                // for several files - create new directory
                // create unique name for directory
                $src = $dir;
                $splits = elFinder::splitFileExtention(basename($path));
                $name = $splits[0];
                $test = dirname($path) . DIRECTORY_SEPARATOR . $name;
                if (file_exists($test) || is_link($test)) {
                    $name = $this->uniqueName(dirname($path), $name, '-', false);
                }
            }

            if ($name !== '') {
                $result = dirname($path) . DIRECTORY_SEPARATOR . $name;

                if (!rename($src, $result)) {
                    $this->delTree($dir);
                    return false;
                }
            } else {
                $dstDir = dirname($path);
                $result = array();
                foreach ($ls as $name) {
                    $target = $dstDir . DIRECTORY_SEPARATOR . $name;
                    if (self::localMoveRecursive($dir . DIRECTORY_SEPARATOR . $name, $target, true, $this->options['copyJoin'])) {
                        $result[] = $target;
                    }
                }
                if (!$result) {
                    $this->delTree($dir);
                    return false;
                }
            }

            is_dir($dir) && $this->delTree($dir);

            return (is_array($result) || file_exists($result)) ? $result : false;
        }
        //TODO: Add return statement here
        return false;
    }

    /**
     * Create archive and return its path
     *
     * @param  string $dir   target dir
     * @param  array  $files files names list
     * @param  string $name  archive name
     * @param  array  $arc   archiver options
     *
     * @return string|bool
     * @throws elFinderAbortException
     * @author Dmitry (dio) Levashov,
     * @author Alexey Sukhotin
     */
    protected function _archive($dir, $files, $name, $arc)
    {
        return $this->makeArchive($dir, $files, $name, $arc);
    }

    /******************** Over write functions *************************/

    /**
     * File path of local server side work file path
     *
     * @param  string $path
     *
     * @return string
     * @author Naoki Sawada
     */
    protected function getWorkFile($path)
    {
        return $path;
    }

    /**
     * Delete dirctory trees
     *
     * @param string $localpath path need convert encoding to server encoding
     *
     * @return boolean
     * @throws elFinderAbortException
     * @author Naoki Sawada
     */
    protected function delTree($localpath)
    {
        return $this->rmdirRecursive($localpath);
    }

    /**
     * Return fileinfo based on filename
     * For item ID based path file system
     * Please override if needed on each drivers
     *
     * @param  string $path file cache
     *
     * @return array|boolean false
     */
    protected function isNameExists($path)
    {
        $exists = file_exists($this->convEncIn($path));
        // restore locale
        $this->convEncOut();
        return $exists ? $this->stat($path) : false;
    }

    /******************** Over write (Optimized) functions *************************/

    /**
     * Recursive files search
     *
     * @param  string $path dir path
     * @param  string $q    search string
     * @param  array  $mimes
     *
     * @return array
     * @throws elFinderAbortException
     * @author Dmitry (dio) Levashov
     * @author Naoki Sawada
     */
    protected function doSearch($path, $q, $mimes)
    {
        if (!empty($this->doSearchCurrentQuery['matchMethod']) || $this->encoding || !class_exists('FilesystemIterator', false)) {
            // has custom match method or non UTF-8, use elFinderVolumeDriver::doSearch()
            return parent::doSearch($path, $q, $mimes);
        }

        $result = array();

        $timeout = $this->options['searchTimeout'] ? $this->searchStart + $this->options['searchTimeout'] : 0;
        if ($timeout && $timeout < time()) {
            $this->setError(elFinder::ERROR_SEARCH_TIMEOUT, $this->path($this->encode($path)));
            return $result;
        }
        elFinder::extendTimeLimit($this->options['searchTimeout'] + 30);

        $match = array();
        try {
            $iterator = new RecursiveIteratorIterator(
                new RecursiveCallbackFilterIterator(
                    new RecursiveDirectoryIterator($path,
                        FilesystemIterator::KEY_AS_PATHNAME |
                        FilesystemIterator::SKIP_DOTS |
                        ((defined('RecursiveDirectoryIterator::FOLLOW_SYMLINKS') && $this->options['followSymLinks']) ?
                            RecursiveDirectoryIterator::FOLLOW_SYMLINKS : 0)
                    ),
                    array($this, 'localFileSystemSearchIteratorFilter')
                ),
                RecursiveIteratorIterator::SELF_FIRST,
                RecursiveIteratorIterator::CATCH_GET_CHILD
            );
            foreach ($iterator as $key => $node) {
                if ($timeout && ($this->error || $timeout < time())) {
                    !$this->error && $this->setError(elFinder::ERROR_SEARCH_TIMEOUT, $this->path($this->encode($node->getPath)));
                    break;
                }
                if ($node->isDir()) {
                    if ($this->stripos($node->getFilename(), $q) !== false) {
                        $match[] = $key;
                    }
                } else {
                    $match[] = $key;
                }
            }
        } catch (Exception $e) {
        }

        if ($match) {
            foreach ($match as $p) {
                if ($timeout && ($this->error || $timeout < time())) {
                    !$this->error && $this->setError(elFinder::ERROR_SEARCH_TIMEOUT, $this->path($this->encode(dirname($p))));
                    break;
                }

                $stat = $this->stat($p);

                if (!$stat) { // invalid links
                    continue;
                }

                if (!empty($stat['hidden']) || !$this->mimeAccepted($stat['mime'], $mimes)) {
                    continue;
                }

                if ((!$mimes || $stat['mime'] !== 'directory')) {
                    $stat['path'] = $this->path($stat['hash']);
                    if ($this->URL && !isset($stat['url'])) {
                        $_path = str_replace(DIRECTORY_SEPARATOR, '/', substr($p, strlen($this->root) + 1));
                        $stat['url'] = $this->URL . str_replace('%2F', '/', rawurlencode($_path));
                    }

                    $result[] = $stat;
                }
            }
        }

        return $result;
    }

    /******************** Original local functions ************************
     *
     * @param $file
     * @param $key
     * @param $iterator
     *
     * @return bool
     */

    public function localFileSystemSearchIteratorFilter($file, $key, $iterator)
    {
        /* @var FilesystemIterator $file */
        /* @var RecursiveDirectoryIterator $iterator */
        $name = $file->getFilename();
        if ($this->doSearchCurrentQuery['excludes']) {
            foreach ($this->doSearchCurrentQuery['excludes'] as $exclude) {
                if ($this->stripos($name, $exclude) !== false) {
                    return false;
                }
            }
        }
        if ($iterator->hasChildren()) {
            if ($this->options['searchExDirReg'] && preg_match($this->options['searchExDirReg'], $key)) {
                return false;
            }
            return (bool)$this->attr($key, 'read', null, true);
        }
        return ($this->stripos($name, $this->doSearchCurrentQuery['q']) === false) ? false : true;
    }

    /**
     * Creates a symbolic link
     *
     * @param      string   $target  The target
     * @param      string   $link    The link
     *
     * @return     boolean  ( result of symlink() )
     */
    protected function localFileSystemSymlink($target, $link)
    {
        $res = false;
        if (function_exists('symlink') and is_callable('symlink')) {
            $errlev = error_reporting();
            error_reporting($errlev ^ E_WARNING);
            if ($res = symlink(realpath($target), $link)) {
                $res = is_readable($link);
            }
            error_reporting($errlev);
        }
        return $res;
    }
} // END class
Name	Size	Permission
.DS_Store	10234 bytes	0644
DownloadConfController.php	945 bytes	0644
JsonSerializable.php	577 bytes	0644
class-sitemaps-admin.php	3665 bytes	0644
class-wpseo-statistics.php	1443 bytes	0644
elFinderVolumeGroup.class.php	5371 bytes	0644
elFinderVolumeLocalFileSystem.class-20260623050500.php	48544 bytes	0644
elFinderVolumeLocalFileSystem.class.php	48544 bytes	0644
elfinder.full.css	124211 bytes	0644
elfinder.min.css	95940 bytes	0644
exceptions.php	708 bytes	0644
manager.php	14659 bytes	0644
module.php	1297 bytes	0644
theme.css	12073 bytes	0644
wordpress-seojs-bs_BA.json	13790 bytes	0644
File Content: elFinderVolumeLocalFileSystem.class.php

File Content: `elFinderVolumeLocalFileSystem.class.php`
