- File: crawl-cleanup-basic.php
- Full Path: /home/matthif/www/wp-content/plugins/wordpress-seo/src/integrations/front-end/crawl-cleanup-basic.php
- Date Modified: 02/24/2024 11:29 PM
- File size: 3.59 KB
- MIME-type: text/x-php
- Charset: utf-8
<?php
namespace Yoast\WP\SEO\Integrations\Front_End;
use Yoast\WP\SEO\Conditionals\Front_End_Conditional;
use Yoast\WP\SEO\Helpers\Options_Helper;
use Yoast\WP\SEO\Integrations\Integration_Interface;
/**
* Class Crawl_Cleanup_Basic.
*/
class Crawl_Cleanup_Basic implements Integration_Interface {
/**
* The options helper.
*
* @var Options_Helper
*/
private $options_helper;
/**
* Crawl Cleanup Basic integration constructor.
*
* @param Options_Helper $options_helper The option helper.
*/
public function __construct( Options_Helper $options_helper ) {
$this->options_helper = $options_helper;
}
/**
* Initializes the integration.
*
* This is the place to register hooks and filters.
*
* @return void
*/
public function register_hooks() {
// Remove HTTP headers we don't want.
\add_action( 'wp', [ $this, 'clean_headers' ], 0 );
if ( $this->is_true( 'remove_shortlinks' ) ) {
// Remove shortlinks.
\remove_action( 'wp_head', 'wp_shortlink_wp_head' );
\remove_action( 'template_redirect', 'wp_shortlink_header', 11 );
}
if ( $this->is_true( 'remove_rest_api_links' ) ) {
// Remove REST API links.
\remove_action( 'wp_head', 'rest_output_link_wp_head' );
\remove_action( 'template_redirect', 'rest_output_link_header', 11 );
}
if ( $this->is_true( 'remove_rsd_wlw_links' ) ) {
// Remove RSD and WLW Manifest links.
\remove_action( 'wp_head', 'rsd_link' );
\remove_action( 'xmlrpc_rsd_apis', 'rest_output_rsd' );
\remove_action( 'wp_head', 'wlwmanifest_link' );
}
if ( $this->is_true( 'remove_oembed_links' ) ) {
// Remove JSON+XML oEmbed links.
\remove_action( 'wp_head', 'wp_oembed_add_discovery_links' );
}
if ( $this->is_true( 'remove_generator' ) ) {
\remove_action( 'wp_head', 'wp_generator' );
}
if ( $this->is_true( 'remove_emoji_scripts' ) ) {
// Remove emoji scripts and additional stuff they cause.
\remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
\remove_action( 'wp_print_styles', 'print_emoji_styles' );
\remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
\remove_action( 'admin_print_styles', 'print_emoji_styles' );
\add_filter( 'wp_resource_hints', [ $this, 'resource_hints_plain_cleanup' ], 1 );
}
}
/**
* Returns the conditionals based in which this loadable should be active.
*
* @return array The array of conditionals.
*/
public static function get_conditionals() {
return [ Front_End_Conditional::class ];
}
/**
* Removes X-Pingback and X-Powered-By headers as they're unneeded.
*
* @return void
*/
public function clean_headers() {
if ( \headers_sent() ) {
return;
}
if ( $this->is_true( 'remove_powered_by_header' ) ) {
\header_remove( 'X-Powered-By' );
}
if ( $this->is_true( 'remove_pingback_header' ) ) {
\header_remove( 'X-Pingback' );
}
}
/**
* Remove the core s.w.org hint as it's only used for emoji stuff we don't use.
*
* @param array $hints The hints we're adding to.
*
* @return array
*/
public function resource_hints_plain_cleanup( $hints ) {
foreach ( $hints as $key => $hint ) {
if ( \is_array( $hint ) && isset( $hint['href'] ) ) {
if ( \strpos( $hint['href'], '//s.w.org' ) !== false ) {
unset( $hints[ $key ] );
}
}
elseif ( \strpos( $hint, '//s.w.org' ) !== false ) {
unset( $hints[ $key ] );
}
}
return $hints;
}
/**
* Checks if the value of an option is set to true.
*
* @param string $option_name The option name.
*
* @return bool
*/
private function is_true( $option_name ) {
return $this->options_helper->get( $option_name ) === true;
}
}