133 lines
3.6 KiB
PHP
133 lines
3.6 KiB
PHP
<?php
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/**
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* WPSEO plugin file.
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*
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* @package WPSEO\XML_Sitemaps
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*/
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use Yoast\WP\SEO\Conditionals\Deactivating_Yoast_Seo_Conditional;
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/**
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* Rewrite setup and handling for sitemaps functionality.
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*/
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class WPSEO_Sitemaps_Router {
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/**
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* Sets up init logic.
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*/
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public function __construct() {
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// If we add rewrite rules during the plugin's deactivation, the flush_rewrite_rules that we perform afterwards won't properly flush those new rules.
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if ( YoastSEO()->classes->get( Deactivating_Yoast_Seo_Conditional::class )->is_met() ) {
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return;
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}
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add_action( 'init', [ $this, 'init' ], 1 );
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add_filter( 'redirect_canonical', [ $this, 'redirect_canonical' ] );
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add_action( 'template_redirect', [ $this, 'template_redirect' ], 0 );
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}
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/**
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* Sets up rewrite rules.
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*/
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public function init() {
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global $wp;
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$wp->add_query_var( 'sitemap' );
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$wp->add_query_var( 'sitemap_n' );
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$wp->add_query_var( 'yoast-sitemap-xsl' );
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add_rewrite_rule( 'sitemap_index\.xml$', 'index.php?sitemap=1', 'top' );
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add_rewrite_rule( '([^/]+?)-sitemap([0-9]+)?\.xml$', 'index.php?sitemap=$matches[1]&sitemap_n=$matches[2]', 'top' );
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add_rewrite_rule( '([a-z]+)?-?sitemap\.xsl$', 'index.php?yoast-sitemap-xsl=$matches[1]', 'top' );
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}
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/**
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* Stop trailing slashes on sitemap.xml URLs.
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*
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* @param string $redirect The redirect URL currently determined.
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*
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* @return bool|string
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*/
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public function redirect_canonical( $redirect ) {
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if ( get_query_var( 'sitemap' ) || get_query_var( 'yoast-sitemap-xsl' ) ) {
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return false;
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}
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return $redirect;
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}
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/**
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* Redirects sitemap.xml to sitemap_index.xml.
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*/
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public function template_redirect() {
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if ( ! $this->needs_sitemap_index_redirect() ) {
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return;
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}
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wp_safe_redirect( home_url( '/sitemap_index.xml' ), 301, 'Yoast SEO' );
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exit;
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}
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/**
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* Checks whether the current request needs to be redirected to sitemap_index.xml.
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*
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* @global WP_Query $wp_query Current query.
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*
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* @return bool True if redirect is needed, false otherwise.
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*/
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public function needs_sitemap_index_redirect() {
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global $wp_query;
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$protocol = 'http://';
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if ( ! empty( $_SERVER['HTTPS'] ) && $_SERVER['HTTPS'] === 'on' ) {
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$protocol = 'https://';
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}
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$domain = '';
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if ( isset( $_SERVER['SERVER_NAME'] ) ) {
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$domain = sanitize_text_field( wp_unslash( $_SERVER['SERVER_NAME'] ) );
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}
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$path = '';
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if ( isset( $_SERVER['REQUEST_URI'] ) ) {
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$path = sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) );
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}
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// Due to different environment configurations, we need to check both SERVER_NAME and HTTP_HOST.
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$check_urls = [ $protocol . $domain . $path ];
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if ( ! empty( $_SERVER['HTTP_HOST'] ) ) {
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$check_urls[] = $protocol . sanitize_text_field( wp_unslash( $_SERVER['HTTP_HOST'] ) ) . $path;
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}
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return $wp_query->is_404 && in_array( home_url( '/sitemap.xml' ), $check_urls, true );
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}
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/**
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* Create base URL for the sitemap.
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*
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* @param string $page Page to append to the base URL.
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*
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* @return string base URL (incl page)
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*/
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public static function get_base_url( $page ) {
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global $wp_rewrite;
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$base = $wp_rewrite->using_index_permalinks() ? 'index.php/' : '/';
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/**
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* Filter the base URL of the sitemaps.
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*
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* @param string $base The string that should be added to home_url() to make the full base URL.
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*/
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$base = apply_filters( 'wpseo_sitemaps_base_url', $base );
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/*
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* Get the scheme from the configured home URL instead of letting WordPress
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* determine the scheme based on the requested URI.
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*/
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return home_url( $base . $page, wp_parse_url( get_option( 'home' ), PHP_URL_SCHEME ) );
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}
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}
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