clean-up-wordpress.php

<?

function tf_cleanup() { 
	// EditURI link
	remove_action( 'wp_head', 'rsd_link' );
	// windows live writer
	remove_action( 'wp_head', 'wlwmanifest_link' );
	// previous link
	remove_action( 'wp_head', 'parent_post_rel_link', 10, 0 );
	// start link
	remove_action( 'wp_head', 'start_post_rel_link', 10, 0 );
	// links for adjacent posts
	remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0 );
	// WP version
	remove_action( 'wp_head', 'wp_generator' );

	//Disabl the WordPRess JSON REST API 
	remove_action( 'wp_head', 'rest_output_link_wp_head', 10 );
	remove_action( 'wp_head', 'wp_oembed_add_discovery_links', 10 );
	// all actions related to emojis
	remove_action( 'admin_print_styles', 'print_emoji_styles' );
	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_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );
	remove_filter( 'the_content_feed', 'wp_staticize_emoji' );
	remove_filter( 'comment_text_rss', 'wp_staticize_emoji' );
	// remove the dns-prefetch to wordpress.org
	add_filter( 'emoji_svg_url', '__return_false' ); 
	// filter to remove TinyMCE emojis
	add_filter( 'tiny_mce_plugins', 'disable_emojicons_tinymce' );
	// Remove jQuery Migrate
	add_filter( 'wp_default_scripts', 'remove_jquery_migrate' );
	// a better title
	add_filter( 'wp_title', 'rw_title', 10, 3 );
	// remove WP version from RSS
	add_filter( 'the_generator', 'bones_rss_version' );
	// remove WP version from css
	add_filter( 'style_loader_src', 'bones_remove_wp_ver_css_js', 9999 ); 
	// remove WP version from scripts
	add_filter( 'script_loader_src', 'bones_remove_wp_ver_css_js', 9999 );
	// remove injected CSS for recent comments widget
	add_filter( 'wp_head', 'bones_remove_wp_widget_recent_comments_style', 1 );
	add_action( 'wp_head', 'bones_remove_recent_comments_style', 1 );
	// remove injected CSS from gallery
	add_filter( 'gallery_style', 'bones_gallery_style' );
	// Remove "recent comments" styles
	add_action( 'widgets_init', 'remove_recent_comments_style' );
	// cleaning up random code around images
  	add_filter( 'the_content', 'bones_filter_ptags_on_images' );
	// cleaning up excerpt
	add_filter( 'excerpt_more', 'bones_excerpt_more' );
	// Disable oEmbed
	add_action( 'init', 'disable_oembed');
} 

// Disable oEmbed
function disable_oembed() {
    // Remove the REST API endpoint.
    remove_action('rest_api_init', 'wp_oembed_register_route');
    // Turn off oEmbed auto discovery.
    // Don't filter oEmbed results.
    remove_filter('oembed_dataparse', 'wp_filter_oembed_result', 10);
    // Remove oEmbed discovery links.
    remove_action('wp_head', 'wp_oembed_add_discovery_links');
    // Remove oEmbed-specific JavaScript from the front-end and back-end.
    remove_action('wp_head', 'wp_oembed_add_host_js');
}

// filter to remove TinyMCE emojis
function disable_emojicons_tinymce( $plugins ) {
	if ( is_array( $plugins ) ) {
		return array_diff( $plugins, array( 'wpemoji' ) );
	} else {
		return array();
	}
}

// Remove jQuery Migrate
function remove_jquery_migrate( &$scripts) {
    if(!is_admin()) {
        $scripts->remove( 'jquery');
        $scripts->add( 'jquery', false, array( 'jquery-core' ), '1.10.2' );
    }
}

// A better title
// http://www.deluxeblogtips.com/2012/03/better-title-meta-tag.html
function rw_title( $title, $sep, $seplocation ) {
  	global $page, $paged;

	// Don't affect in feeds.
	if ( is_feed() ) return $title;

	// Add the blog's name
	if ( 'right' == $seplocation ) {
		$title .= get_bloginfo( 'name' );
	} else {
		$title = get_bloginfo( 'name' ) . $title;
	}

	// Add the blog description for the home/front page.
	$site_description = get_bloginfo( 'description', 'display' );

	if ( $site_description && ( is_home() || is_front_page() ) ) {
		$title .= " {$sep} {$site_description}";
	}

	// Add a page number if necessary:
	if ( $paged >= 2 || $page >= 2 ) {
		$title .= " {$sep} " . sprintf( __( 'Page %s', 'dbt' ), max( $paged, $page ) );
	}

	return $title;

} 

// remove WP version from RSS
function bones_rss_version() { 
	return ''; 
}


// remove WP version from scripts
function bones_remove_wp_ver_css_js( $src ) {
	if ( strpos( $src, 'ver=' ) )
		$src = remove_query_arg( 'ver', $src );
	return $src;
} 


// remove injected CSS for recent comments widget
function bones_remove_wp_widget_recent_comments_style() {
	if ( has_filter( 'wp_head', 'wp_widget_recent_comments_style' ) ) {
		remove_filter( 'wp_head', 'wp_widget_recent_comments_style' );
	}
}

// remove injected CSS from recent comments widget
function bones_remove_recent_comments_style() {
	global $wp_widget_factory;
	if (isset($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 injected CSS from gallery
function bones_gallery_style($css) {
	return preg_replace( "!<style type='text/css'>(.*?)</style>!s", '', $css );
}  
 
// Remove "recent comments" styles
function remove_recent_comments_style() {  
    global $wp_widget_factory;  
    remove_action( 'wp_head', array( $wp_widget_factory->widgets['WP_Widget_Recent_Comments'], 'recent_comments_style' ) );  
}   

// remove the p from around imgs (http://css-tricks.com/snippets/wordpress/remove-paragraph-tags-from-around-images/)
function bones_filter_ptags_on_images($content){
	return preg_replace('/<p>\s*(<a .*>)?\s*(<img .* \/>)\s*(<\/a>)?\s*<\/p>/iU', '\1\2\3', $content);
}

// This removes the annoying […] to a Read More link
function bones_excerpt_more($more) {
	global $post;
	// edit here if you like
	return '...  <a class="excerpt-read-more" href="'. get_permalink( $post->ID ) . '" title="'. __( 'Read ', 'bonestheme' ) . esc_attr( get_the_title( $post->ID ) ).'">'. __( 'Read more &raquo;', 'bonestheme' ) .'</a>';
}