<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category   Zend

 * @package    Zend_Tool

 * @subpackage Framework

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: IncludePathLoader.php 20904 2010-02-04 16:18:18Z matthew $

 */

/**

 * @see Zend_Tool_Framework_Loader_Abstract

 */

require_once 'Zend/Tool/Framework/Loader/Abstract.php';

/**

 * @see Zend_Tool_Framework_Loader_IncludePathLoader_RecursiveFilterIterator

 */

require_once 'Zend/Tool/Framework/Loader/IncludePathLoader/RecursiveFilterIterator.php';

/**

 * @category   Zend

 * @package    Zend_Tool

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Tool_Framework_Loader_IncludePathLoader extends Zend_Tool_Framework_Loader_Abstract

{

    /**

     * _getFiles()

     *

     * @return array Array of files to load

     */

    protected function _getFiles()

    {

        require_once 'Zend/Loader.php';

        $paths = Zend_Loader::explodeIncludePath();

        // used for checking similarly named files

        $relativeItems   = array();

        $files           = array();

        $isZendTraversed = false;

        foreach ($paths as $path) {

            // default patterns to use

            $filterDenyDirectoryPattern = '.*(/|\\\\).svn';

            $filterAcceptFilePattern    = '.*(?:Manifest|Provider)\.php$';

            if (!file_exists($path) || $path[0] == '.') {

                continue;

            }

            $realIncludePath = realpath($path);

            // ensure that we only traverse a single version of Zend Framework on all include paths

            if (file_exists($realIncludePath . '/Zend/Tool/Framework/Loader/IncludePathLoader.php')) {

                if ($isZendTraversed === false) {

                    $isZendTraversed = true;

                } else {

                    // use the deny directory pattern that includes the path to 'Zend', it will not be accepted

                    $filterDenyDirectoryPattern = '.*((/|\\\\).svn|' . preg_quote($realIncludePath . DIRECTORY_SEPARATOR) . 'Zend)';

                }

            }

            // create recursive directory iterator

            $rdi = new RecursiveDirectoryIterator($path);

            // pass in the RecursiveDirectoryIterator & the patterns

            $filter = new Zend_Tool_Framework_Loader_IncludePathLoader_RecursiveFilterIterator(

                $rdi,

                $filterDenyDirectoryPattern,

                $filterAcceptFilePattern

                );

            // build the rii with the filter

            $iterator = new RecursiveIteratorIterator($filter);

            // iterate over the accepted items

            foreach ($iterator as $item) {

                $file = (string)$item;

                if($this->_fileIsBlacklisted($file)) {

                    continue;

                }

                // ensure that the same named file from separate include_paths is not loaded

                $relativeItem = preg_replace('#^' . preg_quote($realIncludePath . DIRECTORY_SEPARATOR, '#') . '#', '', $item->getRealPath());

                // no links allowed here for now

                if ($item->isLink()) {

                    continue;

                }

                // no items that are relavitely the same are allowed

                if (in_array($relativeItem, $relativeItems)) {

                    continue;

                }

                $relativeItems[] = $relativeItem;

                $files[] = $item->getRealPath();

            }

        }

        return $files;

    }

    /**

     *

     * @param  string $file

     * @return bool

     */

    protected function _fileIsBlacklisted($file)

    {

        $blacklist = array(

            "PHPUnit".DIRECTORY_SEPARATOR."Framework",

            "Zend".DIRECTORY_SEPARATOR."OpenId".DIRECTORY_SEPARATOR."Provider"

        );

        foreach($blacklist AS $blacklitedPattern) {

            if(strpos($file, $blacklitedPattern) !== false) {

                return true;

            }

        }

        return false;

    }

}