156 lines
3.6 KiB
PHP
156 lines
3.6 KiB
PHP
<?php
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/**
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* Query Filters.
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*
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* These functions register the frontend query vars.
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*
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* @package EDD
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* @subpackage Functions
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* @copyright Copyright (c) 2018, Easy Digital Downloads, LLC
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* @license http://opensource.org/licenses/gpl-2.0.php GNU Public License
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* @since 1.0
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*/
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// Exit if accessed directly
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defined( 'ABSPATH' ) || exit;
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/**
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* Blocks access to download attachments.
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*
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* Only blocks files that are listed as downloadable files for the product.
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*
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* @since 1.2.2
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*/
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function edd_block_attachments() {
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// Bail if not an attachment.
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if ( ! is_attachment() ) {
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return;
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}
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$parent = get_post_field( 'post_parent', get_the_ID() );
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$uri = wp_get_attachment_url( get_the_ID() );
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$edd_dir = edd_get_uploads_base_dir();
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$edd_file = strpos( $uri, '/' . $edd_dir . '/' );
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if ( ! $parent && false === $edd_file ) {
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return;
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}
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if ( 'download' !== get_post_type( $parent ) && false === $edd_file ) {
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return;
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}
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$files = edd_get_download_files( $parent );
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$restricted = wp_list_pluck( $files, 'file' );
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if ( ! in_array( $uri, $restricted, true ) ) {
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return;
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}
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wp_die( esc_html__( 'You do not have permission to view this file.', 'easy-digital-downloads' ), esc_html__( 'Error', 'easy-digital-downloads' ), array( 'response' => 403 ) );
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}
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add_action( 'template_redirect', 'edd_block_attachments' );
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/**
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* Removes our tracking query arg so as not to interfere with the WP query.
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*
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* @see https://core.trac.wordpress.org/ticket/25143
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*
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* @since 2.4.3
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*
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* @param WP_Query $query.
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*/
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function edd_unset_discount_query_arg( $query ) {
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if ( is_admin() || ! $query->is_main_query() || ! empty( $query->query_vars['edd-api'] ) ) {
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return;
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}
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$discount = $query->get( 'discount' );
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if ( ! empty( $discount ) ) {
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// Unset ref var from $wp_query.
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$query->set( 'discount', null );
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global $wp;
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// Unset ref var from $wp.
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unset( $wp->query_vars['discount'] );
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// If on home (because $wp->query_vars is empty) and 'show_on_front' is page
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if ( empty( $wp->query_vars ) && get_option( 'show_on_front' ) === 'page' ) {
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// Reset and re-parse query vars.
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$wp->query_vars['page_id'] = get_option( 'page_on_front' );
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$query->parse_query( $wp->query_vars );
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}
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}
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}
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add_action( 'pre_get_posts', 'edd_unset_discount_query_arg', 999999 );
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/**
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* Filters on canonical redirects.
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*
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* @since 2.4.3
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*
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* @param string $redirect_url Redirect URL.
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* @param string $requested_url Requested URL.
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*
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* @return string
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*/
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function edd_prevent_canonical_redirect( $redirect_url, $requested_url ) {
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if ( ! is_front_page() ) {
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return $redirect_url;
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}
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$discount = get_query_var( 'discount' );
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if ( ! empty( $discount ) || false !== strpos( $requested_url, 'discount' ) ) {
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$redirect_url = $requested_url;
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}
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return $redirect_url;
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}
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add_action( 'redirect_canonical', 'edd_prevent_canonical_redirect', 0, 2 );
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/**
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* Auto flush permalinks wth a soft flush when a 404 error is detected on an
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* EDD page.
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*
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* @since 2.4.3
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*
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* @return string
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*/
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function edd_refresh_permalinks_on_bad_404() {
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global $wp;
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if ( ! is_404() ) {
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return;
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}
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if ( isset( $_GET['edd-flush'] ) ) { // WPCS: CSRF ok.
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return;
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}
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if ( false === get_transient( 'edd_refresh_404_permalinks' ) ) {
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$slug = defined( 'EDD_SLUG' )
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? EDD_SLUG
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: 'downloads';
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$parts = explode( '/', $wp->request );
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if ( $slug !== $parts[0] ) {
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return;
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}
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flush_rewrite_rules( false );
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set_transient( 'edd_refresh_404_permalinks', 1, HOUR_IN_SECONDS * 12 );
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edd_redirect( home_url( add_query_arg( array( 'edd-flush' => 1 ), $wp->request ) ) );
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}
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}
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add_action( 'template_redirect', 'edd_refresh_permalinks_on_bad_404' );
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