codehaiku / subway-2.0

classes/subway-page-redirect.php

<?php
/**
 * This file is part of the Subway WordPress Plugin Package.
 *
 * (c) Joseph Gabito <joseph@useissuestabinstead.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * PHP Version 5.4
 *
 * @category Subway\Page\Redirect
 * @package  Subway
 * @author   Joseph G. <emailnotdisplayed@domain.tld>
 * @license  http://opensource.org/licenses/gpl-license.php GNU Public License
 * @version  GIT:github.com/codehaiku/subway
 * @link     github.com/codehaiku/subway The Plugin Repository
 */

namespace Subway;

if (! defined('ABSPATH') ) {
    return;
}

/**
 * Subway Option Methods.
 *
 * @category Subway\Page\Redirect
 * @package  Subway
 * @author   Joseph G. <emailnotdisplayed@domain.tld>
 * @license  http://opensource.org/licenses/gpl-license.php GNU Public License
 * @link     github.com/codehaiku/subway The Plugin Repository
 * @since    1.0
 */
final class PageRedirect
{

    /**
     * Redirects pages into our login page.
     *
     * @return void.

The doc-type void. could not be parsed: Unknown type name "void." at position 0. (view supported doc-types)

     */
    public static function index()
    {

        // Additional filter for custom pages, taxonomy, links, parameterized urls, etc.
        // Callback function/method must return true (boolean) to disable redirect.
        $should_exit = apply_filters( 'subway/classes/subway-page-redirect/index/before-page-redirect', false );

        if ( $should_exit ) {
            return;
        }

        // Only execute for non logged in users.
        if (is_user_logged_in() ) {
            return;
        }
        
        $is_private = false;

        $queried_id = get_queried_object_id();

        $current_post = get_post(absint($queried_id));

        $login_page_id = absint(get_option('subway_login_page'));

        $excluded_page = Options::getPublicPostsIdentifiers();

        // Already escaped inside 'subway_get_redirect_page_url'.
        $redirect_page = Options::getRedirectPageUrl(); // WPCS XSS OK.

        if ( !empty( $current_post ) ) {
		  $is_private = Metabox::isPostPrivate( $current_post->ID );
        }

        // do_action( 'subway/classes/subway-page-redirect/index/before_page_redirect' );

        // Turn off if is in 'wc-ajax' (woocommerce)
        if ( function_exists( 'is_ajax') ) {
            if ( is_ajax() ) {
               return;
            }
        }

        // Same for normal ajax requests.
        if ( is_admin() && defined( 'DOING_AJAX' ) && DOING_AJAX  ) {
            return;
        }

        // Exit if site is public.
        if ( Options::isPublicSite() ) {
            return;
        }

        // Check if redirect page is empty or not.
        if ( empty( $redirect_page ) ) {
            return;
        }

        // Check if buddypress activate page.
        if (function_exists('bp_is_activation_page') ) {
            if (bp_is_activation_page() ) {
                return;
            }
        }

        // Check if buddypress registration page.
        if (function_exists('bp_is_register_page') ) {
            if (bp_is_register_page() ) {
                return;
            }
        }

        // Assign 0 value to empty $post->ID to prevent exception.
        // This applies to custom WordPress pages such as BP Members Page and Groups.
        if (empty($current_post) ) {
            $current_post = new \stdclass;
            $current_post->ID = 0;
        }

        $current_page_id = absint($current_post->ID);

        // Check if $current_page_id && $selected_blog_id is equal to each other.
        // Get the page ID instead of global $post->ID that the query returns.
        // The ID of the first post object inside the loop is not correct.
        $blog_id = absint(get_option('page_for_posts'));

        if (is_home() ) {
            if ($blog_id === $login_page_id ) {
                $current_page_id = $blog_id;
            }
        }

        // Only execute the script for non-loggedin visitors.
        if ( ! is_user_logged_in() ) {

            if ($current_page_id !== $login_page_id ) {

                if ( ! in_array( $current_page_id, $excluded_page, true ) || in_array( $current_page_id, $excluded_page, true ) && true === $is_private ) {

                    wp_safe_redirect(
                        add_query_arg(
                            array( '_redirected' => 'yes' ),
                            $redirect_page
                        )
                    );

                    Helpers::close();
                }
            }
        }
    }

}