禁用WordPress一些毫无用处的功能

WordPress真的是太臃肿了，各种用不到的功能，还容易被黑客一天到晚暴力破解。

每次换主题也不至于总是去改主题的functions.php文件，直接弄个插件，把要去掉的功能放插件里面。复制下面的代码，新建一个名字为remove-functions.php的文件（记得是UTF-8）格式，放进WordPress目录下/wp-content/plugins/即可，然后去后台插件启用。

<?php
/*
Plugin Name: 小插件
Plugin URI: https://blog.69cdn.com/disable-wordpress-unnecessary-functions/
Description: 禁用一些毫无用处的功能
Version: 0.1
Author: alect
*/
// Add custom Theme Functions here

// disable XML-RPC
add_filter( 'xmlrpc_enabled', '__return_false' );

// remove RSD Links
remove_action( 'wp_head', 'rsd_link' ) ;

// remove wlwmanifest Link
remove_action('wp_head', 'wlwmanifest_link');

// remove version from head
remove_action('wp_head', 'wp_generator');

// remove version from rss
add_filter('the_generator', '__return_empty_string');

// remove version from head
remove_action('wp_head', 'wp_generator');

// remove version from rss
add_filter('the_generator', '__return_empty_string');

// remove version from scripts and styles
function shapeSpace_remove_version_scripts_styles($src) {
  if (strpos($src, 'ver=')) {
    $src = remove_query_arg('ver', $src);
  }
  return $src;
}
add_filter('style_loader_src', 'shapeSpace_remove_version_scripts_styles', 9999);
add_filter('script_loader_src', 'shapeSpace_remove_version_scripts_styles', 9999);

// Remove the Shortlink Tag
add_filter('after_setup_theme', 'remove_redundant_shortlink');
function remove_redundant_shortlink() {
  // remove HTML meta tag
  // <link rel='shortlink' href='http://example.com/?p=25' />
  remove_action('wp_head', 'wp_shortlink_wp_head', 10);
   // remove HTTP header
  // Link: <https://example.com/?p=25>; rel=shortlink
  remove_action( 'template_redirect', 'wp_shortlink_header', 11);
}

// Disable Self Pingbacks
function no_self_ping( &$links ) {
  $home = get_option( 'home' );
  foreach ( $links as $l => $link )
    if ( 0 === strpos( $link, $home ) )
      unset($links[$l]);
}

add_action( 'pre_ping', 'no_self_ping' );

// Remove REST API Links
add_action('after_setup_theme', function(){
  remove_action( 'wp_head', 'rest_output_link_wp_head', 10 );
});

// Add CORS Header
function add_cors_http_header() {
    header("Access-Control-Allow-Origin: *");
}
add_action('init','add_cors_http_header');

?>

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