Must-use plugin containing tools for improving site security. (WiP)

security.inc.php

<?php
/**
 * Plugin Name:     eggMUP: Security
 * Plugin URI:      https://gist.github.com/ianpegg/e60d026fe2b8f4b7236855818dd36ab6
 * Description:     Must-use plugin tools for improving site security.
 * Version:         1.0.1
 * Author:          Ian Pegg
 * Author URI:      https://eggcupwebdesign.com
 * php version 8.2.14
 * 
 * @category Must_Use_Plugin
 * @package  WordPress_Plugin
 * @author   Ian Pegg <[email protected]>
 * @license  GNU/GPLv3 https://www.gnu.org/licenses/gpl-3.0.txt
 * @link     https://eggcupwebdesign.com
 **/
namespace EggCup\MUP\Security;

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


/**
 * Deactivates XMLRPC as it is deprecated in favour of WP-JSON:
 */
add_filter('xmlrpc_enabled', '__return_false');


/**
 * Stops WP from making life so easy for dumb scripts that want to 
 * find the login page:
 *
 * @link https://wordpress.stackexchange.com/questions/135021/how-to-turn-off-redirection-from-domain-com-login-to-domain-com-wp-login-php#answer-135035
 */
add_action('template_redirect', function () {
    remove_action('template_redirect', 'wp_redirect_admin_locations', 1000);
});


/**
 * Removes all the unnecessary HTML tags that make it trivially easy
 * to fingerprint WP:
 * 
 * @return void
 */
add_action('after_setup_theme', function () {
    add_filter('the_generator', '__return_false');
    remove_action('wp_head', 'rsd_link');
    remove_action('wp_head', 'wlwmanifest_link');
    remove_action('wp_head', 'adjacent_posts_rel_link_wp_head', 10);
    remove_action('wp_head', 'wp_generator');
    remove_action('wp_head', 'wp_shortlink_wp_head', 10);
    remove_action('wp_head', 'rest_output_link_wp_head', 10);
    remove_action('wp_head', 'wp_oembed_add_discovery_links');
    remove_action('wp_head', 'wp_oembed_add_host_js');
});