<?php

/** This file is part of KCFinder project
  *
  *      @desc CMS integration code: Drupal
  *   @package KCFinder
  *   @version 3.12
  *    @author Dany Alejandro Cabrera <otello2040@gmail.com>
  * @copyright 2010-2014 KCFinder Project
  *   @license http://opensource.org/licenses/GPL-3.0 GPLv3
  *   @license http://opensource.org/licenses/LGPL-3.0 LGPLv3
  *      @link http://kcfinder.sunhater.com
  */

// gets a valid drupal_path
function get_drupal_path() {
    if (!empty($_SERVER['SCRIPT_FILENAME'])) {
        $drupal_path = dirname(dirname(dirname(dirname($_SERVER['SCRIPT_FILENAME']))));
        if (!file_exists($drupal_path . '/includes/bootstrap.inc')) {
            $drupal_path = dirname(dirname(dirname($_SERVER['SCRIPT_FILENAME'])));
            $depth = 2;
            do {
                $drupal_path = dirname($drupal_path);
                $depth++;
            } while (!($bootstrap_file_found = file_exists($drupal_path . '/includes/bootstrap.inc')) && $depth < 10);
        }
    }

    if (!isset($bootstrap_file_found) || !$bootstrap_file_found) {
        $drupal_path = '../../../../..';
        if (!file_exists($drupal_path . '/includes/bootstrap.inc')) {
            $drupal_path = '../..';
            do {
                $drupal_path .= '/..';
                $depth = substr_count($drupal_path, '..');
            } while (!($bootstrap_file_found = file_exists($drupal_path . '/includes/bootstrap.inc')) && $depth < 10);
        }
    }
    return $drupal_path;
}

function CheckAuthentication($drupal_path) {

    static $authenticated;

    if (!isset($authenticated)) {

        if (!isset($bootstrap_file_found) || $bootstrap_file_found) {
            $current_cwd = getcwd();
            if (!defined('DRUPAL_ROOT')){
                define('DRUPAL_ROOT', $drupal_path);
            }

            // Simulate being in the drupal root folder so we can share the session
            chdir(DRUPAL_ROOT);

            global $base_url;
            $base_root = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 'https' : 'http';
            $base_url = $base_root .= '://'. preg_replace('/[^a-z0-9-:._]/i', '', $_SERVER['HTTP_HOST']);

            if ($dir = trim(dirname($_SERVER['SCRIPT_NAME']), '\,/')) {
                $base_path = "/$dir";
                $base_url .= $base_path;
            }

            // correct base_url so it points to Drupal root
            $pos = strpos($base_url, '/sites/');
            $base_url = substr($base_url, 0, $pos); // drupal root absolute url

            // If we aren't in a Drupal installation, or if Drupal path hasn't been properly found, die
            if(!file_exists(DRUPAL_ROOT . '/includes/bootstrap.inc')) {
                die("The CMS integration service for -drupal- requires KCFinder to be properly placed inside your Drupal installation.");
            }


            // bootstrap
            require_once(DRUPAL_ROOT . '/includes/bootstrap.inc');
            drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);

            // if user has access permission...
            if (user_access('access kcfinder')) {
                if (!isset($_SESSION['KCFINDER'])) {
                    $_SESSION['KCFINDER'] = array();
                    $_SESSION['KCFINDER']['disabled'] = false;
                }

                // User has permission, so make sure KCFinder is not disabled!
                if(!isset($_SESSION['KCFINDER']['disabled'])) {
                    $_SESSION['KCFINDER']['disabled'] = false;
                }

                global $user;
                $_SESSION['KCFINDER']['uploadURL'] = strtr(variable_get('kcfinder_upload_url', 'sites/default/files/kcfinder'), array('%u' => $user->uid, '%n' => $user->name));
                $_SESSION['KCFINDER']['uploadDir'] = strtr(variable_get('kcfinder_upload_dir', ''), array('%u' => $user->uid, '%n' => $user->name));
                $_SESSION['KCFINDER']['theme'] = variable_get('kcfinder_theme', 'default');

                //echo '<br />uploadURL: ' . $_SESSION['KCFINDER']['uploadURL']<br />;
                //echo '<br />uploadDir: ' . $_SESSION['KCFINDER']['uploadDir']<br />;

                chdir($current_cwd);

                return true;
            }

            chdir($current_cwd);
            return false;
        }
    }
}

CheckAuthentication(get_drupal_path());
