cleanup.php

require_once get_template_directory() . '/inc/core/cleanup.php';

<?php
/**
 * RX Theme Cleanup
 *
 * Advanced WordPress cleanup, performance optimization, security hardening,
 * head cleanup, REST cleanup, comments cleanup, emoji cleanup, oEmbed cleanup,
 * feed cleanup, query cleanup, asset cleanup, and safe theme-level defaults.
 *
 * @package RX_Theme
 */

defined( 'ABSPATH' ) || exit;

if ( ! defined( 'RX_THEME_CLEANUP_VERSION' ) ) {
	define( 'RX_THEME_CLEANUP_VERSION', '1.0.0' );
}

/**
 * ------------------------------------------------------------
 * Global Cleanup Settings
 * ------------------------------------------------------------
 *
 * You can override these constants in wp-config.php before WordPress loads.
 *
 * Example:
 * define( 'RX_DISABLE_EMOJIS', true );
 * define( 'RX_DISABLE_XMLRPC', true );
 */

defined( 'RX_DISABLE_EMOJIS' ) || define( 'RX_DISABLE_EMOJIS', true );
defined( 'RX_DISABLE_EMBEDS' ) || define( 'RX_DISABLE_EMBEDS', true );
defined( 'RX_DISABLE_XMLRPC' ) || define( 'RX_DISABLE_XMLRPC', true );
defined( 'RX_DISABLE_RSD_LINK' ) || define( 'RX_DISABLE_RSD_LINK', true );
defined( 'RX_DISABLE_WLW_LINK' ) || define( 'RX_DISABLE_WLW_LINK', true );
defined( 'RX_DISABLE_SHORTLINK' ) || define( 'RX_DISABLE_SHORTLINK', true );
defined( 'RX_DISABLE_GENERATOR_TAG' ) || define( 'RX_DISABLE_GENERATOR_TAG', true );
defined( 'RX_DISABLE_REST_LINKS' ) || define( 'RX_DISABLE_REST_LINKS', false );
defined( 'RX_DISABLE_FEEDS' ) || define( 'RX_DISABLE_FEEDS', false );
defined( 'RX_DISABLE_COMMENTS_FRONTEND' ) || define( 'RX_DISABLE_COMMENTS_FRONTEND', false );
defined( 'RX_DISABLE_AUTHOR_ARCHIVES' ) || define( 'RX_DISABLE_AUTHOR_ARCHIVES', false );
defined( 'RX_DISABLE_ATTACHMENT_PAGES' ) || define( 'RX_DISABLE_ATTACHMENT_PAGES', true );
defined( 'RX_CLEANUP_QUERY_STRINGS' ) || define( 'RX_CLEANUP_QUERY_STRINGS', false );
defined( 'RX_REMOVE_JQUERY_MIGRATE' ) || define( 'RX_REMOVE_JQUERY_MIGRATE', false );
defined( 'RX_DISABLE_DASHICONS_GUESTS' ) || define( 'RX_DISABLE_DASHICONS_GUESTS', true );
defined( 'RX_DISABLE_BLOCK_LIBRARY_CSS' ) || define( 'RX_DISABLE_BLOCK_LIBRARY_CSS', false );
defined( 'RX_DISABLE_GLOBAL_STYLES' ) || define( 'RX_DISABLE_GLOBAL_STYLES', false );
defined( 'RX_DISABLE_CLASSIC_THEME_STYLES' ) || define( 'RX_DISABLE_CLASSIC_THEME_STYLES', false );
defined( 'RX_LIMIT_POST_REVISIONS' ) || define( 'RX_LIMIT_POST_REVISIONS', true );
defined( 'RX_DISABLE_HEARTBEAT_FRONTEND' ) || define( 'RX_DISABLE_HEARTBEAT_FRONTEND', false );
defined( 'RX_REMOVE_CAPITAL_P_DANGLING' ) || define( 'RX_REMOVE_CAPITAL_P_DANGLING', true );


/**
 * ------------------------------------------------------------
 * Main Cleanup Bootstrap
 * ------------------------------------------------------------
 */

add_action( 'after_setup_theme', 'rx_theme_cleanup_after_setup', 20 );

function rx_theme_cleanup_after_setup() {

	if ( RX_DISABLE_GENERATOR_TAG ) {
		remove_action( 'wp_head', 'wp_generator' );
		add_filter( 'the_generator', '__return_empty_string' );
	}

	if ( RX_DISABLE_RSD_LINK ) {
		remove_action( 'wp_head', 'rsd_link' );
	}

	if ( RX_DISABLE_WLW_LINK ) {
		remove_action( 'wp_head', 'wlwmanifest_link' );
	}

	if ( RX_DISABLE_SHORTLINK ) {
		remove_action( 'wp_head', 'wp_shortlink_wp_head' );
		remove_action( 'template_redirect', 'wp_shortlink_header', 11 );
	}

	remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head', 10 );
	remove_action( 'wp_head', 'feed_links_extra', 3 );

	if ( RX_DISABLE_REST_LINKS ) {
		remove_action( 'wp_head', 'rest_output_link_wp_head' );
		remove_action( 'template_redirect', 'rest_output_link_header', 11 );
		remove_action( 'xmlrpc_rsd_apis', 'rest_output_rsd' );
	}

	if ( RX_REMOVE_CAPITAL_P_DANGLING ) {
		remove_filter( 'the_title', 'capital_P_dangit', 11 );
		remove_filter( 'the_content', 'capital_P_dangit', 11 );
		remove_filter( 'comment_text', 'capital_P_dangit', 31 );
	}

	/**
	 * Remove WordPress version from styles/scripts.
	 */
	add_filter( 'style_loader_src', 'rx_theme_remove_wp_version_from_assets', 9999 );
	add_filter( 'script_loader_src', 'rx_theme_remove_wp_version_from_assets', 9999 );
}


/**
 * ------------------------------------------------------------
 * Head Cleanup
 * ------------------------------------------------------------
 */

add_action( 'init', 'rx_theme_advanced_head_cleanup' );

function rx_theme_advanced_head_cleanup() {

	/**
	 * Remove WordPress default meta links.
	 */
	remove_action( 'wp_head', 'wp_generator' );
	remove_action( 'wp_head', 'rsd_link' );
	remove_action( 'wp_head', 'wlwmanifest_link' );
	remove_action( 'wp_head', 'wp_shortlink_wp_head' );
	remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head' );

	/**
	 * Remove REST links only if enabled.
	 */
	if ( RX_DISABLE_REST_LINKS ) {
		remove_action( 'wp_head', 'rest_output_link_wp_head' );
		remove_action( 'wp_head', 'wp_oembed_add_discovery_links' );
		remove_action( 'template_redirect', 'rest_output_link_header', 11 );
	}

	/**
	 * Remove extra feed links only if feeds are disabled.
	 */
	if ( RX_DISABLE_FEEDS ) {
		remove_action( 'wp_head', 'feed_links', 2 );
		remove_action( 'wp_head', 'feed_links_extra', 3 );
	}
}


/**
 * Remove WordPress version query only from local assets.
 */
function rx_theme_remove_wp_version_from_assets( $src ) {

	if ( empty( $src ) ) {
		return $src;
	}

	$wp_version = get_bloginfo( 'version' );

	if ( strpos( $src, 'ver=' . $wp_version ) !== false ) {
		$src = remove_query_arg( 'ver', $src );
	}

	return $src;
}


/**
 * ------------------------------------------------------------
 * Emoji Cleanup
 * ------------------------------------------------------------
 */

if ( RX_DISABLE_EMOJIS ) {
	add_action( 'init', 'rx_theme_disable_emojis' );
}

function rx_theme_disable_emojis() {

	remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
	remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
	remove_action( 'wp_print_styles', 'print_emoji_styles' );
	remove_action( 'admin_print_styles', 'print_emoji_styles' );
	remove_action( 'embed_head', 'print_emoji_detection_script' );

	remove_filter( 'the_content_feed', 'wp_staticize_emoji' );
	remove_filter( 'comment_text_rss', 'wp_staticize_emoji' );
	remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );

	add_filter( 'emoji_svg_url', '__return_false' );
	add_filter( 'tiny_mce_plugins', 'rx_theme_disable_emojis_tinymce' );
	add_filter( 'wp_resource_hints', 'rx_theme_disable_emoji_dns_prefetch', 10, 2 );
}

function rx_theme_disable_emojis_tinymce( $plugins ) {

	if ( is_array( $plugins ) ) {
		return array_diff( $plugins, array( 'wpemoji' ) );
	}

	return array();
}

function rx_theme_disable_emoji_dns_prefetch( $urls, $relation_type ) {

	if ( 'dns-prefetch' === $relation_type ) {
		$emoji_svg_url = apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/' );

		$urls = array_filter(
			$urls,
			static function ( $url ) use ( $emoji_svg_url ) {
				return false === strpos( $url, $emoji_svg_url );
			}
		);
	}

	return $urls;
}


/**
 * ------------------------------------------------------------
 * oEmbed Cleanup
 * ------------------------------------------------------------
 */

if ( RX_DISABLE_EMBEDS ) {
	add_action( 'init', 'rx_theme_disable_embeds', 9999 );
}

function rx_theme_disable_embeds() {

	remove_action( 'rest_api_init', 'wp_oembed_register_route' );
	remove_filter( 'oembed_dataparse', 'wp_filter_oembed_result', 10 );
	remove_action( 'wp_head', 'wp_oembed_add_discovery_links' );
	remove_action( 'wp_head', 'wp_oembed_add_host_js' );

	add_filter( 'embed_oembed_discover', '__return_false' );
	add_filter( 'tiny_mce_plugins', 'rx_theme_disable_embeds_tinymce' );

	add_filter(
		'rewrite_rules_array',
		static function ( $rules ) {
			foreach ( $rules as $rule => $rewrite ) {
				if ( false !== strpos( $rewrite, 'embed=true' ) ) {
					unset( $rules[ $rule ] );
				}
			}

			return $rules;
		}
	);

	add_action(
		'wp_footer',
		static function () {
			wp_deregister_script( 'wp-embed' );
		},
		1
	);
}

function rx_theme_disable_embeds_tinymce( $plugins ) {

	if ( is_array( $plugins ) ) {
		return array_diff( $plugins, array( 'wpembed' ) );
	}

	return array();
}


/**
 * ------------------------------------------------------------
 * XML-RPC Cleanup
 * ------------------------------------------------------------
 *
 * Warning:
 * Disable XML-RPC only if you do not use Jetpack, remote publishing,
 * mobile app publishing, or XML-RPC dependent services.
 */

if ( RX_DISABLE_XMLRPC ) {
	add_filter( 'xmlrpc_enabled', '__return_false' );
	add_filter( 'wp_headers', 'rx_theme_remove_x_pingback_header' );
	add_filter( 'pings_open', '__return_false', 20, 2 );
	add_filter( 'pre_update_option_enable_xmlrpc', '__return_false' );
	add_filter( 'pre_option_enable_xmlrpc', '__return_zero' );
}

function rx_theme_remove_x_pingback_header( $headers ) {

	if ( isset( $headers['X-Pingback'] ) ) {
		unset( $headers['X-Pingback'] );
	}

	return $headers;
}


/**
 * ------------------------------------------------------------
 * REST API Cleanup
 * ------------------------------------------------------------
 *
 * By default, this does not disable REST because Gutenberg,
 * WooCommerce, Rank Math, Yoast, Elementor, and many plugins need it.
 */

add_filter( 'rest_endpoints', 'rx_theme_cleanup_rest_endpoints' );

function rx_theme_cleanup_rest_endpoints( $endpoints ) {

	/**
	 * Remove user endpoint for non-admin users.
	 */
	if ( ! current_user_can( 'list_users' ) ) {
		if ( isset( $endpoints['/wp/v2/users'] ) ) {
			unset( $endpoints['/wp/v2/users'] );
		}

		if ( isset( $endpoints['/wp/v2/users/(?P<id>[\d]+)'] ) ) {
			unset( $endpoints['/wp/v2/users/(?P<id>[\d]+)'] );
		}
	}

	return $endpoints;
}


/**
 * Remove REST user links from public post responses.
 */
add_filter( 'rest_prepare_post', 'rx_theme_remove_rest_author_links', 10, 3 );
add_filter( 'rest_prepare_page', 'rx_theme_remove_rest_author_links', 10, 3 );

function rx_theme_remove_rest_author_links( $response, $post, $request ) {

	if ( ! current_user_can( 'list_users' ) && is_a( $response, 'WP_REST_Response' ) ) {
		$links = $response->get_links();

		if ( isset( $links['author'] ) ) {
			$response->remove_link( 'author' );
		}
	}

	return $response;
}


/**
 * ------------------------------------------------------------
 * Feed Cleanup
 * ------------------------------------------------------------
 */

if ( RX_DISABLE_FEEDS ) {
	add_action( 'do_feed', 'rx_theme_disable_feeds', 1 );
	add_action( 'do_feed_rdf', 'rx_theme_disable_feeds', 1 );
	add_action( 'do_feed_rss', 'rx_theme_disable_feeds', 1 );
	add_action( 'do_feed_rss2', 'rx_theme_disable_feeds', 1 );
	add_action( 'do_feed_atom', 'rx_theme_disable_feeds', 1 );
	add_action( 'do_feed_rss2_comments', 'rx_theme_disable_feeds', 1 );
	add_action( 'do_feed_atom_comments', 'rx_theme_disable_feeds', 1 );
}

function rx_theme_disable_feeds() {

	wp_die(
		esc_html__( 'Feeds are disabled on this website.', 'rx-theme' ),
		esc_html__( 'Feeds Disabled', 'rx-theme' ),
		array(
			'response' => 410,
		)
	);
}


/**
 * ------------------------------------------------------------
 * Comments Cleanup
 * ------------------------------------------------------------
 */

if ( RX_DISABLE_COMMENTS_FRONTEND ) {
	add_action( 'admin_init', 'rx_theme_disable_comments_admin_redirect' );
	add_action( 'admin_menu', 'rx_theme_disable_comments_admin_menu' );
	add_action( 'init', 'rx_theme_disable_comments_post_types' );
	add_action( 'wp_before_admin_bar_render', 'rx_theme_disable_comments_admin_bar' );

	add_filter( 'comments_open', '__return_false', 20, 2 );
	add_filter( 'pings_open', '__return_false', 20, 2 );
	add_filter( 'comments_array', '__return_empty_array', 10, 2 );
}

function rx_theme_disable_comments_post_types() {

	$post_types = get_post_types();

	foreach ( $post_types as $post_type ) {
		if ( post_type_supports( $post_type, 'comments' ) ) {
			remove_post_type_support( $post_type, 'comments' );
		}

		if ( post_type_supports( $post_type, 'trackbacks' ) ) {
			remove_post_type_support( $post_type, 'trackbacks' );
		}
	}
}

function rx_theme_disable_comments_admin_menu() {
	remove_menu_page( 'edit-comments.php' );
}

function rx_theme_disable_comments_admin_redirect() {

	global $pagenow;

	if ( 'edit-comments.php' === $pagenow ) {
		wp_safe_redirect( admin_url() );
		exit;
	}
}

function rx_theme_disable_comments_admin_bar() {

	global $wp_admin_bar;

	if ( is_object( $wp_admin_bar ) ) {
		$wp_admin_bar->remove_menu( 'comments' );
	}
}


/**
 * ------------------------------------------------------------
 * Attachment Page Cleanup
 * ------------------------------------------------------------
 */

if ( RX_DISABLE_ATTACHMENT_PAGES ) {
	add_action( 'template_redirect', 'rx_theme_redirect_attachment_pages', 1 );
}

function rx_theme_redirect_attachment_pages() {

	if ( ! is_attachment() ) {
		return;
	}

	global $post;

	if ( $post && ! empty( $post->post_parent ) ) {
		wp_safe_redirect( get_permalink( $post->post_parent ), 301 );
		exit;
	}

	wp_safe_redirect( home_url( '/' ), 301 );
	exit;
}


/**
 * ------------------------------------------------------------
 * Author Archive Cleanup
 * ------------------------------------------------------------
 */

if ( RX_DISABLE_AUTHOR_ARCHIVES ) {
	add_action( 'template_redirect', 'rx_theme_disable_author_archives' );
}

function rx_theme_disable_author_archives() {

	if ( is_author() ) {
		wp_safe_redirect( home_url( '/' ), 301 );
		exit;
	}
}


/**
 * ------------------------------------------------------------
 * Query String Cleanup
 * ------------------------------------------------------------
 *
 * Keep disabled by default because many cache systems already handle this.
 */

if ( RX_CLEANUP_QUERY_STRINGS ) {
	add_filter( 'script_loader_src', 'rx_theme_remove_asset_query_strings', 15 );
	add_filter( 'style_loader_src', 'rx_theme_remove_asset_query_strings', 15 );
}

function rx_theme_remove_asset_query_strings( $src ) {

	if ( is_admin() ) {
		return $src;
	}

	if ( false !== strpos( $src, '?ver=' ) ) {
		$src = remove_query_arg( 'ver', $src );
	}

	return $src;
}


/**
 * ------------------------------------------------------------
 * jQuery Migrate Cleanup
 * ------------------------------------------------------------
 *
 * Keep disabled by default. Some old plugins need jquery-migrate.
 */

if ( RX_REMOVE_JQUERY_MIGRATE ) {
	add_action( 'wp_default_scripts', 'rx_theme_remove_jquery_migrate' );
}

function rx_theme_remove_jquery_migrate( $scripts ) {

	if ( is_admin() ) {
		return;
	}

	if ( isset( $scripts->registered['jquery'] ) ) {
		$script = $scripts->registered['jquery'];

		if ( ! empty( $script->deps ) ) {
			$script->deps = array_diff( $script->deps, array( 'jquery-migrate' ) );
		}
	}
}


/**
 * ------------------------------------------------------------
 * Dashicons Cleanup for Guests
 * ------------------------------------------------------------
 */

if ( RX_DISABLE_DASHICONS_GUESTS ) {
	add_action( 'wp_enqueue_scripts', 'rx_theme_disable_dashicons_for_guests', 100 );
}

function rx_theme_disable_dashicons_for_guests() {

	if ( ! is_user_logged_in() ) {
		wp_dequeue_style( 'dashicons' );
		wp_deregister_style( 'dashicons' );
	}
}


/**
 * ------------------------------------------------------------
 * Gutenberg / Block CSS Cleanup
 * ------------------------------------------------------------
 */

add_action( 'wp_enqueue_scripts', 'rx_theme_cleanup_block_assets', 100 );

function rx_theme_cleanup_block_assets() {

	if ( RX_DISABLE_BLOCK_LIBRARY_CSS ) {
		wp_dequeue_style( 'wp-block-library' );
		wp_dequeue_style( 'wp-block-library-theme' );
	}

	if ( RX_DISABLE_GLOBAL_STYLES ) {
		wp_dequeue_style( 'global-styles' );
	}

	if ( RX_DISABLE_CLASSIC_THEME_STYLES ) {
		wp_dequeue_style( 'classic-theme-styles' );
	}
}


/**
 * Remove inline global styles if enabled.
 */
if ( RX_DISABLE_GLOBAL_STYLES ) {
	remove_action( 'wp_enqueue_scripts', 'wp_enqueue_global_styles' );
	remove_action( 'wp_body_open', 'wp_global_styles_render_svg_filters' );
}


/**
 * ------------------------------------------------------------
 * Heartbeat API Cleanup
 * ------------------------------------------------------------
 */

if ( RX_DISABLE_HEARTBEAT_FRONTEND ) {
	add_action( 'init', 'rx_theme_disable_heartbeat_frontend', 1 );
}

function rx_theme_disable_heartbeat_frontend() {

	if ( ! is_admin() ) {
		wp_deregister_script( 'heartbeat' );
	}
}


/**
 * Control heartbeat frequency in admin instead of fully disabling.
 */
add_filter( 'heartbeat_settings', 'rx_theme_heartbeat_settings' );

function rx_theme_heartbeat_settings( $settings ) {

	$settings['interval'] = 60;

	return $settings;
}


/**
 * ------------------------------------------------------------
 * Login Cleanup
 * ------------------------------------------------------------
 */

add_filter( 'login_errors', 'rx_theme_simplify_login_errors' );

function rx_theme_simplify_login_errors() {

	return esc_html__( 'Invalid login details.', 'rx-theme' );
}


/**
 * Remove WordPress logo from login page header URL.
 */
add_filter( 'login_headerurl', 'rx_theme_login_header_url' );

function rx_theme_login_header_url() {
	return home_url( '/' );
}


/**
 * Change login logo title.
 */
add_filter( 'login_headertext', 'rx_theme_login_header_text' );

function rx_theme_login_header_text() {
	return get_bloginfo( 'name' );
}


/**
 * ------------------------------------------------------------
 * Security Header Helpers
 * ------------------------------------------------------------
 *
 * These are safe basic headers.
 * CSP is not included because it can break external scripts, ads, analytics,
 * fonts, CDN files, and app chunks if not configured carefully.
 */

add_action( 'send_headers', 'rx_theme_basic_security_headers' );

function rx_theme_basic_security_headers() {

	if ( is_admin() ) {
		return;
	}

	header( 'X-Content-Type-Options: nosniff' );
	header( 'X-Frame-Options: SAMEORIGIN' );
	header( 'Referrer-Policy: strict-origin-when-cross-origin' );
	header( 'X-XSS-Protection: 0' );

	if ( is_ssl() ) {
		header( 'Strict-Transport-Security: max-age=31536000; includeSubDomains' );
	}
}


/**
 * ------------------------------------------------------------
 * Disable File Editing from Dashboard
 * ------------------------------------------------------------
 *
 * This is best placed in wp-config.php:
 * define( 'DISALLOW_FILE_EDIT', true );
 *
 * This fallback defines it if not already defined.
 */

if ( ! defined( 'DISALLOW_FILE_EDIT' ) ) {
	define( 'DISALLOW_FILE_EDIT', true );
}


/**
 * ------------------------------------------------------------
 * Revision Cleanup
 * ------------------------------------------------------------
 *
 * Best controlled in wp-config.php.
 * This theme-level fallback only applies if WP_POST_REVISIONS is not defined.
 */

if ( RX_LIMIT_POST_REVISIONS && ! defined( 'WP_POST_REVISIONS' ) ) {
	define( 'WP_POST_REVISIONS', 5 );
}


/**
 * ------------------------------------------------------------
 * Excerpt Cleanup
 * ------------------------------------------------------------
 */

add_filter( 'excerpt_more', 'rx_theme_excerpt_more' );

function rx_theme_excerpt_more() {
	return '&hellip;';
}


add_filter( 'excerpt_length', 'rx_theme_excerpt_length', 20 );

function rx_theme_excerpt_length( $length ) {

	return absint(
		apply_filters( 'rx_theme_excerpt_length', 28 )
	);
}


/**
 * ------------------------------------------------------------
 * Search Cleanup
 * ------------------------------------------------------------
 */

/**
 * Redirect empty search queries to home.
 */
add_action( 'template_redirect', 'rx_theme_redirect_empty_search' );

function rx_theme_redirect_empty_search() {

	if ( is_search() && ! is_admin() ) {
		$search_query = get_search_query();

		if ( '' === trim( $search_query ) ) {
			wp_safe_redirect( home_url( '/' ), 302 );
			exit;
		}
	}
}


/**
 * Exclude pages from search by default.
 */
add_action( 'pre_get_posts', 'rx_theme_search_only_posts' );

function rx_theme_search_only_posts( $query ) {

	if ( is_admin() || ! $query->is_main_query() ) {
		return;
	}

	if ( $query->is_search() ) {
		$query->set(
			'post_type',
			apply_filters(
				'rx_theme_search_post_types',
				array( 'post' )
			)
		);
	}
}


/**
 * ------------------------------------------------------------
 * Admin Bar Cleanup
 * ------------------------------------------------------------
 */

add_action( 'admin_bar_menu', 'rx_theme_cleanup_admin_bar', 999 );

function rx_theme_cleanup_admin_bar( $wp_admin_bar ) {

	if ( ! is_object( $wp_admin_bar ) ) {
		return;
	}

	$wp_admin_bar->remove_node( 'wp-logo' );
	$wp_admin_bar->remove_node( 'about' );
	$wp_admin_bar->remove_node( 'wporg' );
	$wp_admin_bar->remove_node( 'documentation' );
	$wp_admin_bar->remove_node( 'support-forums' );
	$wp_admin_bar->remove_node( 'feedback' );
}


/**
 * ------------------------------------------------------------
 * Dashboard Widgets Cleanup
 * ------------------------------------------------------------
 */

add_action( 'wp_dashboard_setup', 'rx_theme_cleanup_dashboard_widgets', 999 );

function rx_theme_cleanup_dashboard_widgets() {

	remove_meta_box( 'dashboard_primary', 'dashboard', 'side' );
	remove_meta_box( 'dashboard_quick_press', 'dashboard', 'side' );
	remove_meta_box( 'dashboard_recent_drafts', 'dashboard', 'side' );

	if ( ! current_user_can( 'manage_options' ) ) {
		remove_meta_box( 'dashboard_activity', 'dashboard', 'normal' );
		remove_meta_box( 'dashboard_right_now', 'dashboard', 'normal' );
	}
}


/**
 * ------------------------------------------------------------
 * Admin Footer Cleanup
 * ------------------------------------------------------------
 */

add_filter( 'admin_footer_text', 'rx_theme_admin_footer_text' );

function rx_theme_admin_footer_text() {

	return sprintf(
		esc_html__( 'Built with %s.', 'rx-theme' ),
		'<strong>RX Theme</strong>'
	);
}


add_filter( 'update_footer', 'rx_theme_admin_update_footer', 20 );

function rx_theme_admin_update_footer() {

	return 'RX Theme ' . esc_html( RX_THEME_CLEANUP_VERSION );
}


/**
 * ------------------------------------------------------------
 * Admin Notice Cleanup for Non-Admins
 * ------------------------------------------------------------
 */

add_action( 'admin_head', 'rx_theme_hide_admin_notices_for_non_admins' );

function rx_theme_hide_admin_notices_for_non_admins() {

	if ( current_user_can( 'manage_options' ) ) {
		return;
	}

	echo '<style>
		.update-nag,
		.notice,
		.notice-error,
		.notice-warning,
		.notice-info,
		.notice-success,
		.updated,
		.error {
			display: none !important;
		}
	</style>';
}


/**
 * ------------------------------------------------------------
 * WordPress Update Notice Cleanup for Non-Admins
 * ------------------------------------------------------------
 */

add_action( 'admin_init', 'rx_theme_hide_update_notices_for_non_admins' );

function rx_theme_hide_update_notices_for_non_admins() {

	if ( current_user_can( 'update_core' ) ) {
		return;
	}

	remove_action( 'admin_notices', 'update_nag', 3 );
}


/**
 * ------------------------------------------------------------
 * Disable Self Pingbacks
 * ------------------------------------------------------------
 */

add_action( 'pre_ping', 'rx_theme_disable_self_pingbacks' );

function rx_theme_disable_self_pingbacks( &$links ) {

	$home = home_url();

	foreach ( $links as $key => $link ) {
		if ( 0 === strpos( $link, $home ) ) {
			unset( $links[ $key ] );
		}
	}
}


/**
 * ------------------------------------------------------------
 * Body Class Cleanup
 * ------------------------------------------------------------
 */

add_filter( 'body_class', 'rx_theme_clean_body_classes' );

function rx_theme_clean_body_classes( $classes ) {

	$remove = array(
		'wp-custom-logo',
	);

	$classes = array_diff( $classes, $remove );

	if ( is_singular() ) {
		$classes[] = 'rx-singular';
	}

	if ( is_archive() ) {
		$classes[] = 'rx-archive';
	}

	if ( is_search() ) {
		$classes[] = 'rx-search';
	}

	if ( is_front_page() ) {
		$classes[] = 'rx-front-page';
	}

	return array_unique( array_map( 'sanitize_html_class', $classes ) );
}


/**
 * ------------------------------------------------------------
 * Nav Menu Class Cleanup
 * ------------------------------------------------------------
 */

add_filter( 'nav_menu_css_class', 'rx_theme_clean_nav_menu_classes', 20, 4 );

function rx_theme_clean_nav_menu_classes( $classes, $item, $args, $depth ) {

	$allowed = array(
		'menu-item',
		'current-menu-item',
		'current-menu-parent',
		'current-menu-ancestor',
		'menu-item-has-children',
	);

	$classes = array_intersect( $classes, $allowed );

	$classes[] = 'rx-menu-item';

	if ( 0 === (int) $depth ) {
		$classes[] = 'rx-menu-item-top';
	}

	return array_unique( array_map( 'sanitize_html_class', $classes ) );
}


/**
 * ------------------------------------------------------------
 * Archive Title Cleanup
 * ------------------------------------------------------------
 */

add_filter( 'get_the_archive_title', 'rx_theme_clean_archive_title' );

function rx_theme_clean_archive_title( $title ) {

	if ( is_category() ) {
		$title = single_cat_title( '', false );
	} elseif ( is_tag() ) {
		$title = single_tag_title( '', false );
	} elseif ( is_author() ) {
		$title = get_the_author();
	} elseif ( is_tax() ) {
		$title = single_term_title( '', false );
	} elseif ( is_post_type_archive() ) {
		$title = post_type_archive_title( '', false );
	}

	return $title;
}


/**
 * ------------------------------------------------------------
 * Image / Media Cleanup
 * ------------------------------------------------------------
 */

/**
 * Add missing image attributes.
 */
add_filter( 'wp_get_attachment_image_attributes', 'rx_theme_attachment_image_attributes', 10, 3 );

function rx_theme_attachment_image_attributes( $attr, $attachment, $size ) {

	if ( empty( $attr['loading'] ) ) {
		$attr['loading'] = 'lazy';
	}

	if ( empty( $attr['decoding'] ) ) {
		$attr['decoding'] = 'async';
	}

	return $attr;
}


/**
 * Disable image srcset only if specifically filtered.
 */
add_filter( 'wp_calculate_image_srcset', 'rx_theme_maybe_disable_srcset', 10, 5 );

function rx_theme_maybe_disable_srcset( $sources, $size_array, $image_src, $image_meta, $attachment_id ) {

	if ( apply_filters( 'rx_theme_disable_srcset', false, $attachment_id ) ) {
		return false;
	}

	return $sources;
}


/**
 * ------------------------------------------------------------
 * Upload MIME Cleanup
 * ------------------------------------------------------------
 */

add_filter( 'upload_mimes', 'rx_theme_secure_upload_mimes' );

function rx_theme_secure_upload_mimes( $mimes ) {

	/**
	 * SVG is not enabled by default because unsafe SVG files can contain scripts.
	 * You can enable SVG safely only after adding proper SVG sanitization.
	 */
	if ( apply_filters( 'rx_theme_allow_svg_uploads', false ) ) {
		$mimes['svg'] = 'image/svg+xml';
	}

	return $mimes;
}


/**
 * ------------------------------------------------------------
 * Admin Columns Cleanup
 * ------------------------------------------------------------
 */

add_filter( 'manage_posts_columns', 'rx_theme_cleanup_post_columns' );
add_filter( 'manage_pages_columns', 'rx_theme_cleanup_post_columns' );

function rx_theme_cleanup_post_columns( $columns ) {

	if ( isset( $columns['comments'] ) && RX_DISABLE_COMMENTS_FRONTEND ) {
		unset( $columns['comments'] );
	}

	return $columns;
}


/**
 * ------------------------------------------------------------
 * WP Resource Hints Cleanup
 * ------------------------------------------------------------
 */

add_filter( 'wp_resource_hints', 'rx_theme_resource_hints_cleanup', 10, 2 );

function rx_theme_resource_hints_cleanup( $urls, $relation_type ) {

	if ( 'dns-prefetch' !== $relation_type ) {
		return $urls;
	}

	$remove_hosts = apply_filters(
		'rx_theme_remove_dns_prefetch_hosts',
		array(
			'//s.w.org',
		)
	);

	foreach ( $urls as $key => $url ) {
		if ( in_array( $url, $remove_hosts, true ) ) {
			unset( $urls[ $key ] );
		}
	}

	return array_values( $urls );
}


/**
 * ------------------------------------------------------------
 * Canonical Cleanup Helper
 * ------------------------------------------------------------
 *
 * Keep WordPress canonical redirects on by default.
 * Disable only for special headless/static use cases.
 */

add_filter( 'redirect_canonical', 'rx_theme_maybe_disable_canonical_redirects', 10, 2 );

function rx_theme_maybe_disable_canonical_redirects( $redirect_url, $requested_url ) {

	if ( apply_filters( 'rx_theme_disable_canonical_redirects', false ) ) {
		return false;
	}

	return $redirect_url;
}


/**
 * ------------------------------------------------------------
 * Admin Email Verification Cleanup
 * ------------------------------------------------------------
 *
 * By default disabled because many site owners dislike frequent confirmation.
 */

add_filter( 'admin_email_check_interval', 'rx_theme_admin_email_check_interval' );

function rx_theme_admin_email_check_interval( $interval ) {

	if ( apply_filters( 'rx_theme_disable_admin_email_check', false ) ) {
		return 0;
	}

	return $interval;
}


/**
 * ------------------------------------------------------------
 * Password Protected Post Cleanup
 * ------------------------------------------------------------
 */

add_filter( 'protected_title_format', 'rx_theme_protected_title_format' );
add_filter( 'private_title_format', 'rx_theme_private_title_format' );

function rx_theme_protected_title_format() {
	return '%s';
}

function rx_theme_private_title_format() {
	return '%s';
}


/**
 * ------------------------------------------------------------
 * Dangerous Request Cleanup
 * ------------------------------------------------------------
 *
 * Basic protection against suspicious public query strings.
 */

add_action( 'init', 'rx_theme_block_suspicious_requests', 1 );

function rx_theme_block_suspicious_requests() {

	if ( is_admin() || wp_doing_ajax() || wp_doing_cron() ) {
		return;
	}

	$request_uri = isset( $_SERVER['REQUEST_URI'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : '';

	if ( empty( $request_uri ) ) {
		return;
	}

	$blocked_patterns = apply_filters(
		'rx_theme_blocked_request_patterns',
		array(
			'base64_encode',
			'base64_decode',
			'eval(',
			'GLOBALS[',
			'_REQUEST',
			'_SERVER',
			'_POST',
			'_GET',
			'wp-config.php',
			'.env',
			'../',
			'%2e%2e',
			'<script',
		)
	);

	foreach ( $blocked_patterns as $pattern ) {
		if ( false !== stripos( $request_uri, $pattern ) ) {
			status_header( 403 );
			exit;
		}
	}
}


/**
 * ------------------------------------------------------------
 * Disable Application Passwords Optional
 * ------------------------------------------------------------
 */

add_filter( 'wp_is_application_passwords_available', 'rx_theme_maybe_disable_application_passwords' );

function rx_theme_maybe_disable_application_passwords( $available ) {

	if ( apply_filters( 'rx_theme_disable_application_passwords', false ) ) {
		return false;
	}

	return $available;
}


/**
 * ------------------------------------------------------------
 * Disable User Enumeration by ?author=1
 * ------------------------------------------------------------
 */

add_action( 'template_redirect', 'rx_theme_block_author_query_enumeration' );

function rx_theme_block_author_query_enumeration() {

	if ( is_admin() ) {
		return;
	}

	if ( isset( $_GET['author'] ) && ! is_user_logged_in() ) {
		wp_safe_redirect( home_url( '/' ), 301 );
		exit;
	}
}


/**
 * ------------------------------------------------------------
 * Disable REST User Enumeration Query
 * ------------------------------------------------------------
 */

add_filter( 'rest_user_query', 'rx_theme_block_rest_user_enumeration', 10, 2 );

function rx_theme_block_rest_user_enumeration( $prepared_args, $request ) {

	if ( ! current_user_can( 'list_users' ) ) {
		$prepared_args['include'] = array( 0 );
	}

	return $prepared_args;
}


/**
 * ------------------------------------------------------------
 * Clean wp_head Priority Debug Helper
 * ------------------------------------------------------------
 *
 * Use this only when debugging:
 * add_filter( 'rx_theme_debug_wp_head_hooks', '__return_true' );
 */

add_action( 'wp_head', 'rx_theme_debug_wp_head_hooks', 9999 );

function rx_theme_debug_wp_head_hooks() {

	if ( ! current_user_can( 'manage_options' ) ) {
		return;
	}

	if ( ! apply_filters( 'rx_theme_debug_wp_head_hooks', false ) ) {
		return;
	}

	global $wp_filter;

	if ( empty( $wp_filter['wp_head'] ) ) {
		return;
	}

	echo "\n<!-- RX Theme wp_head hooks debug enabled -->\n";
}


/**
 * ------------------------------------------------------------
 * Disable WordPress Default Sitemaps Optional
 * ------------------------------------------------------------
 *
 * Keep enabled by default.
 * Disable if you use Rank Math, Yoast, custom sitemap.php, or another sitemap.
 */

add_filter( 'wp_sitemaps_enabled', 'rx_theme_maybe_disable_wp_sitemaps' );

function rx_theme_maybe_disable_wp_sitemaps( $enabled ) {

	if ( apply_filters( 'rx_theme_disable_wp_sitemaps', false ) ) {
		return false;
	}

	return $enabled;
}


/**
 * ------------------------------------------------------------
 * Disable Big Image Size Threshold Optional
 * ------------------------------------------------------------
 */

add_filter( 'big_image_size_threshold', 'rx_theme_big_image_size_threshold' );

function rx_theme_big_image_size_threshold( $threshold ) {

	$new_threshold = apply_filters( 'rx_theme_big_image_threshold', $threshold );

	if ( false === $new_threshold ) {
		return false;
	}

	return absint( $new_threshold );
}


/**
 * ------------------------------------------------------------
 * Clean Category / Tag Description Output
 * ------------------------------------------------------------
 */

remove_filter( 'pre_term_description', 'wp_filter_kses' );
remove_filter( 'term_description', 'wp_kses_data' );

add_filter( 'term_description', 'rx_theme_clean_term_description', 20 );

function rx_theme_clean_term_description( $description ) {

	return wp_kses_post( $description );
}


/**
 * ------------------------------------------------------------
 * Remove Recent Comments Inline CSS
 * ------------------------------------------------------------
 */

add_action( 'widgets_init', 'rx_theme_remove_recent_comments_style' );

function rx_theme_remove_recent_comments_style() {

	global $wp_widget_factory;

	if (
		isset( $wp_widget_factory->widgets['WP_Widget_Recent_Comments'] )
		&& is_object( $wp_widget_factory->widgets['WP_Widget_Recent_Comments'] )
	) {
		remove_action(
			'wp_head',
			array(
				$wp_widget_factory->widgets['WP_Widget_Recent_Comments'],
				'recent_comments_style',
			)
		);
	}
}


/**
 * ------------------------------------------------------------
 * Remove Default Gallery Inline CSS
 * ------------------------------------------------------------
 */

add_filter( 'use_default_gallery_style', '__return_false' );


/**
 * ------------------------------------------------------------
 * Disable Admin Color Scheme Picker Optional
 * ------------------------------------------------------------
 */

add_action( 'admin_head-profile.php', 'rx_theme_maybe_hide_admin_color_picker' );
add_action( 'admin_head-user-edit.php', 'rx_theme_maybe_hide_admin_color_picker' );

function rx_theme_maybe_hide_admin_color_picker() {

	if ( ! apply_filters( 'rx_theme_hide_admin_color_picker', false ) ) {
		return;
	}

	echo '<style>.user-admin-color-wrap{display:none!important;}</style>';
}


/**
 * ------------------------------------------------------------
 * Clean User Contact Methods
 * ------------------------------------------------------------
 */

add_filter( 'user_contactmethods', 'rx_theme_cleanup_user_contact_methods' );

function rx_theme_cleanup_user_contact_methods( $methods ) {

	unset( $methods['aim'], $methods['yim'], $methods['jabber'] );

	$methods['facebook']  = esc_html__( 'Facebook URL', 'rx-theme' );
	$methods['twitter']   = esc_html__( 'Twitter/X URL', 'rx-theme' );
	$methods['linkedin']  = esc_html__( 'LinkedIn URL', 'rx-theme' );
	$methods['instagram'] = esc_html__( 'Instagram URL', 'rx-theme' );

	return $methods;
}


/**
 * ------------------------------------------------------------
 * Disable Admin File Modifications Optional
 * ------------------------------------------------------------
 *
 * Best added in wp-config.php:
 * define( 'DISALLOW_FILE_MODS', true );
 */

if ( apply_filters( 'rx_theme_disallow_file_mods', false ) && ! defined( 'DISALLOW_FILE_MODS' ) ) {
	define( 'DISALLOW_FILE_MODS', true );
}


/**
 * ------------------------------------------------------------
 * Clean Default Widgets Optional
 * ------------------------------------------------------------
 */

add_action( 'widgets_init', 'rx_theme_unregister_default_widgets', 20 );

function rx_theme_unregister_default_widgets() {

	if ( ! apply_filters( 'rx_theme_unregister_default_widgets', false ) ) {
		return;
	}

	unregister_widget( 'WP_Widget_Pages' );
	unregister_widget( 'WP_Widget_Calendar' );
	unregister_widget( 'WP_Widget_Archives' );
	unregister_widget( 'WP_Widget_Links' );
	unregister_widget( 'WP_Widget_Meta' );
	unregister_widget( 'WP_Widget_Search' );
	unregister_widget( 'WP_Widget_Text' );
	unregister_widget( 'WP_Widget_Categories' );
	unregister_widget( 'WP_Widget_Recent_Posts' );
	unregister_widget( 'WP_Widget_Recent_Comments' );
	unregister_widget( 'WP_Widget_RSS' );
	unregister_widget( 'WP_Widget_Tag_Cloud' );
	unregister_widget( 'WP_Nav_Menu_Widget' );
}


/**
 * ------------------------------------------------------------
 * Clean Post Classes
 * ------------------------------------------------------------
 */

add_filter( 'post_class', 'rx_theme_clean_post_classes', 20, 3 );

function rx_theme_clean_post_classes( $classes, $class, $post_id ) {

	$classes[] = 'rx-post';

	if ( is_sticky( $post_id ) ) {
		$classes[] = 'rx-post-sticky';
	}

	if ( has_post_thumbnail( $post_id ) ) {
		$classes[] = 'rx-post-has-thumbnail';
	} else {
		$classes[] = 'rx-post-no-thumbnail';
	}

	return array_unique( array_map( 'sanitize_html_class', $classes ) );
}


/**
 * ------------------------------------------------------------
 * Clean Comment Form Defaults
 * ------------------------------------------------------------
 */

add_filter( 'comment_form_default_fields', 'rx_theme_comment_form_default_fields' );

function rx_theme_comment_form_default_fields( $fields ) {

	if ( isset( $fields['url'] ) && apply_filters( 'rx_theme_remove_comment_url_field', true ) ) {
		unset( $fields['url'] );
	}

	return $fields;
}


/**
 * ------------------------------------------------------------
 * Remove Website Field from Comment Author Link
 * ------------------------------------------------------------
 */

add_filter( 'get_comment_author_link', 'rx_theme_comment_author_link_cleanup' );

function rx_theme_comment_author_link_cleanup( $return ) {

	if ( apply_filters( 'rx_theme_disable_comment_author_links', true ) ) {
		return wp_strip_all_tags( $return );
	}

	return $return;
}


/**
 * ------------------------------------------------------------
 * Disable HTML in Comments Optional
 * ------------------------------------------------------------
 */

add_filter( 'preprocess_comment', 'rx_theme_maybe_disable_comment_html' );

function rx_theme_maybe_disable_comment_html( $commentdata ) {

	if ( apply_filters( 'rx_theme_disable_comment_html', false ) && isset( $commentdata['comment_content'] ) ) {
		$commentdata['comment_content'] = wp_strip_all_tags( $commentdata['comment_content'] );
	}

	return $commentdata;
}


/**
 * ------------------------------------------------------------
 * Remove Comment Reply Script When Not Needed
 * ------------------------------------------------------------
 */

add_action( 'wp_enqueue_scripts', 'rx_theme_comment_reply_cleanup', 100 );

function rx_theme_comment_reply_cleanup() {

	if ( ! is_singular() || ! comments_open() || ! get_option( 'thread_comments' ) ) {
		wp_dequeue_script( 'comment-reply' );
	}
}


/**
 * ------------------------------------------------------------
 * Disable Lazy Loading on First Featured Image Optional
 * ------------------------------------------------------------
 */

add_filter( 'wp_get_attachment_image_attributes', 'rx_theme_featured_image_loading_priority', 20, 3 );

function rx_theme_featured_image_loading_priority( $attr, $attachment, $size ) {

	if ( ! is_singular() || ! in_the_loop() || ! is_main_query() ) {
		return $attr;
	}

	if ( apply_filters( 'rx_theme_prioritize_singular_featured_image', true ) ) {
		$attr['fetchpriority'] = 'high';

		if ( isset( $attr['loading'] ) ) {
			unset( $attr['loading'] );
		}
	}

	return $attr;
}


/**
 * ------------------------------------------------------------
 * Clean WordPress Robots Meta Optional
 * ------------------------------------------------------------
 */

add_filter( 'wp_robots', 'rx_theme_wp_robots_cleanup' );

function rx_theme_wp_robots_cleanup( $robots ) {

	if ( is_search() && apply_filters( 'rx_theme_noindex_search_results', true ) ) {
		$robots['noindex'] = true;
		$robots['follow']  = true;
	}

	if ( is_404() && apply_filters( 'rx_theme_noindex_404', true ) ) {
		$robots['noindex'] = true;
		$robots['follow']  = true;
	}

	return $robots;
}


/**
 * ------------------------------------------------------------
 * Disable Admin Bar Frontend for Non-Admins Optional
 * ------------------------------------------------------------
 */

add_filter( 'show_admin_bar', 'rx_theme_maybe_hide_admin_bar' );

function rx_theme_maybe_hide_admin_bar( $show ) {

	if ( apply_filters( 'rx_theme_hide_admin_bar_for_non_admins', false ) && ! current_user_can( 'manage_options' ) ) {
		return false;
	}

	return $show;
}


/**
 * ------------------------------------------------------------
 * Clean Extra Rel Links
 * ------------------------------------------------------------
 */

add_filter( 'the_content', 'rx_theme_clean_empty_paragraphs', 20 );

function rx_theme_clean_empty_paragraphs( $content ) {

	if ( is_admin() || empty( $content ) ) {
		return $content;
	}

	if ( ! apply_filters( 'rx_theme_clean_empty_paragraphs', false ) ) {
		return $content;
	}

	$content = preg_replace( '#<p>\s*</p>#', '', $content );

	return $content;
}


/**
 * ------------------------------------------------------------
 * Safe Output Buffer Cleanup Optional
 * ------------------------------------------------------------
 *
 * Disabled by default. Use only if your HTML has many whitespace problems.
 */

add_action( 'template_redirect', 'rx_theme_maybe_start_html_cleanup_buffer' );

function rx_theme_maybe_start_html_cleanup_buffer() {

	if (
		is_admin()
		|| wp_doing_ajax()
		|| wp_doing_cron()
		|| ! apply_filters( 'rx_theme_enable_html_buffer_cleanup', false )
	) {
		return;
	}

	ob_start( 'rx_theme_html_buffer_cleanup' );
}

function rx_theme_html_buffer_cleanup( $html ) {

	if ( empty( $html ) ) {
		return $html;
	}

	$html = preg_replace( '/\s+/', ' ', $html );
	$html = str_replace( array( '> <' ), array( '><' ), $html );

	return $html;
}


/**
 * ------------------------------------------------------------
 * Plugin Compatibility: WooCommerce Safe Cleanup
 * ------------------------------------------------------------
 */

add_action( 'wp_enqueue_scripts', 'rx_theme_woocommerce_safe_cleanup', 99 );

function rx_theme_woocommerce_safe_cleanup() {

	if ( ! class_exists( 'WooCommerce' ) ) {
		return;
	}

	/**
	 * Do not remove WooCommerce assets on shop/cart/checkout/account pages.
	 */
	if (
		function_exists( 'is_woocommerce' )
		&& (
			is_woocommerce()
			|| is_cart()
			|| is_checkout()
			|| is_account_page()
		)
	) {
		return;
	}

	if ( apply_filters( 'rx_theme_dequeue_woocommerce_assets_outside_shop', false ) ) {
		wp_dequeue_style( 'woocommerce-general' );
		wp_dequeue_style( 'woocommerce-layout' );
		wp_dequeue_style( 'woocommerce-smallscreen' );
		wp_dequeue_script( 'wc-cart-fragments' );
	}
}


/**
 * ------------------------------------------------------------
 * Final Developer Hooks
 * ------------------------------------------------------------
 */

do_action( 'rx_theme_cleanup_loaded' );

defined( 'RX_DISABLE_FEEDS' ) || define( 'RX_DISABLE_FEEDS', false );
defined( 'RX_DISABLE_REST_LINKS' ) || define( 'RX_DISABLE_REST_LINKS', false );
defined( 'RX_DISABLE_COMMENTS_FRONTEND' ) || define( 'RX_DISABLE_COMMENTS_FRONTEND', false );
defined( 'RX_DISABLE_BLOCK_LIBRARY_CSS' ) || define( 'RX_DISABLE_BLOCK_LIBRARY_CSS', false );