<?php
/**
 * Virtual File System: Access Control Rule: Composite Any
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @package WB
 * @subpackage vfs
 */

WBClass::load('WBVFS_AccessControlRule');

/**
 * Virtual File System: Access Control Rule: Composite Any
 *
 * This is a composite for more rules.
 * Works as a collection of other access control rules.
 * Test rule by rule, it is sufficient if just one rule grants access.
 *
 * @version 0.1.0
 * @package WB
 * @subpackage vfs
 */
class WBVFS_AccessControlRule_CompositeAny extends WBVFS_AccessControlRule
{
    /**
     * @var array
     */
    private $acr    =   null;

    /**
     * 2nc Constructor
     *
     * Called after configuration was set
     */
    protected function init()
    {
        if (!is_array($this->config['accesscontrol'])) {
            return;
        }

        foreach ($this->config['accesscontrol'] as $r) {
            if (!is_array($r)) {
                $r  =   array(
                            'name'      => $r,
                            'params'    =>  array()
                        );
            }
            if (!isset($r['params'])) {
                $r['params']    =   array();
            }

            /** @var WBVFS_AccessControlRule */
            $acr    =   WBClass::create('WBVFS_AccessControlRule_' . $r['name']);
            $acr->setVFSFile($this->file, $this->mime);
            $acr->setLogger($this->log);
            $acr->setConfig($r['params']);

            $this->acr[]    =   $acr;
        }
    }

    /**
     * Check Permissions 4 Request
     *
     * @param WBRequest
     * @return bool
     */
    public function isRequestGranted($req)
    {
        $log            =   $this->getLogMsg($this::GRANT_NA);
        $log['rules']   =   count($this->acr);
        $this->log->notice($log);

        foreach ($this->acr as $acr) {
            /** @var WBVFS_AccessControlRule */
            $acr->setRequestMimeMinor($this->mimeMinor);
            if ($acr->isRequestGranted($req)) {
                return true;
            }
        }

        $this->log->debug($this->getLogMsg($this::GRANT_DENY, 'No rule suited'));
        return false;
    }
}