<?php

class App_Application_Document_CronView extends Qs_ViewController
{
    protected $_actions = array('noop', 'clearOldDocumentLinks');
    protected $_sessionSavePath;

    protected function _doNoop()
    {
        exit;
    }

    protected function _doClearOldDocumentLinks()
    {
        $this->_destroySubDirsFrom(constant('WWW_PATH') . '/' . App_Application_Document_Obj::DOCUMENT_ACCESS_PATH);
        $this->_destroySubDirsFrom(constant('BASE_PATH') . '/tmp/' . App_Application_Document_AdminObj::DOCUMENT_ADMIN_ACCESS_PATH);
        exit;
    }

    protected function _destroySubDirsFrom($path)
    {
        foreach (scandir($path) as $dir) {
            if ($dir != '..'
                && $dir != '.'
                && $dir != '.htaccess'
                && $dir != '.htaccess_dev'
                && !$this->sessionExists($dir)) {
                $this->_destroyDir($path . '/' . $dir);
            }
        }
    }

    protected function _destroyDir($dir)
    {
        if (!is_dir($dir) || is_link($dir)) {
            return unlink($dir);
        }
        foreach (scandir($dir) as $file) {
            if ($file == '.' || $file == '..' || $file == '.htaccess') {
                continue;
            }
            if (!$this->_destroyDir($dir . DIRECTORY_SEPARATOR . $file)) {
                chmod($dir . DIRECTORY_SEPARATOR . $file, 0777);
                if (!$this->_destroyDir($dir . DIRECTORY_SEPARATOR . $file)) {
                    return false;
                }
            };
        }
        return rmdir($dir);
    }

    public function sessionExists($sessionId)
    {
        $file = $this->getSessionSavePath() . '/sess_' . $sessionId;
        return file_exists($file);
    }

    public function getSessionSavePath()
    {
        if (null === $this->_sessionSavePath) {
            $this->_sessionSavePath = session_save_path();
            if (empty($this->_sessionSavePath)) {
                $this->_sessionSavePath = sys_get_temp_dir();
            }
        }
        return $this->_sessionSavePath;
    }
}