@EarnestoDev a eu une excellente réponse , mais elle est un peu dépassée depuis récemment exploits xml-rcp .
J'ai fait une version mise à jour qui, je pense, bloque tout accès possible. Notez cependant qu'il existe quelques plugins qui utilisent la fonctionnalité de pingback / trackback XML-RPC et peuvent avoir des problèmes si vous les utilisez:
- Application mobile WordPress
- JetPack LibSyn (pour les podcasts)
- Certaines parties de BuddyPress
- Windows Live Writer
- IFTTT
- Quelques plugins de galerie
Voici une version mise à jour ci-dessous. Pour le télécharger, vous pouvez le copier dans un fichier de plugin, y déposer des mu-plugins ou le télécharger sur github :
<?php
/*
Plugin Name: BYE BYE Pingback
Plugin URI: https://github.com/Wordpress-Development/bye-bye-pingback/
Description: Banishment of wordpress pingback
Version: 1.0.0
Author: bryanwillis
Author URI: https://github.com/bryanwillis/
*/
// If this file is called directly, abort.
if ( ! defined( 'WPINC' ) ) {
die;
}
/**
* Htaccess directive block xmlrcp for extra security.
* Here are some rewrite examples:
* 404 - RewriteRule xmlrpc\.php$ - [R=404,L]
* 301 - RewriteRule ^xmlrpc\.php$ index.php [R=301]
* If you want custom 404 make sure your server is finding it by also adding this 'ErrorDocument 404 /index.php?error=404' or 'ErrorDocument 404 /wordpress/index.php?error=404' for sites in subdirectory.
*/
add_filter('mod_rewrite_rules', 'noxmlrpc_mod_rewrite_rules'); // should we put this inside wp_loaded or activation hook
function noxmlrpc_mod_rewrite_rules($rules) {
$insert = "RewriteRule xmlrpc\.php$ - [F,L]";
$rules = preg_replace('!RewriteRule!', "$insert\n\nRewriteRule", $rules, 1);
return $rules;
}
register_activation_hook(__FILE__, 'noxmlrpc_htaccess_activate');
function noxmlrpc_htaccess_activate() {
flush_rewrite_rules(true);
}
register_deactivation_hook(__FILE__, 'noxmlrpc_htaccess_deactivate');
function noxmlrpc_htaccess_deactivate() {
remove_filter('mod_rewrite_rules', 'noxmlrpc_mod_rewrite_rules');
flush_rewrite_rules(true);
}
// Remove rsd_link from filters- link rel="EditURI"
add_action('wp', function(){
remove_action('wp_head', 'rsd_link');
}, 9);
// Remove pingback from head (link rel="pingback")
if (!is_admin()) {
function link_rel_buffer_callback($buffer) {
$buffer = preg_replace('/(<link.*?rel=("|\')pingback("|\').*?href=("|\')(.*?)("|\')(.*?)?\/?>|<link.*?href=("|\')(.*?)("|\').*?rel=("|\')pingback("|\')(.*?)?\/?>)/i', '', $buffer);
return $buffer;
}
function link_rel_buffer_start() {
ob_start("link_rel_buffer_callback");
}
function link_rel_buffer_end() {
ob_flush();
}
add_action('template_redirect', 'link_rel_buffer_start', -1);
add_action('get_header', 'link_rel_buffer_start');
add_action('wp_head', 'link_rel_buffer_end', 999);
}
// Return pingback_url empty (<link rel="pingback" href>).
add_filter('bloginfo_url', function($output, $property){
return ($property == 'pingback_url') ? null : $output;
}, 11, 2);
// Disable xmlrcp/pingback
add_filter( 'xmlrpc_enabled', '__return_false' );
add_filter( 'pre_update_option_enable_xmlrpc', '__return_false' );
add_filter( 'pre_option_enable_xmlrpc', '__return_zero' );
// Disable trackbacks
add_filter( 'rewrite_rules_array', function( $rules ) {
foreach( $rules as $rule => $rewrite ) {
if( preg_match( '/trackback\/\?\$$/i', $rule ) ) {
unset( $rules[$rule] );
}
}
return $rules;
});
// Disable X-Pingback HTTP Header.
add_filter('wp_headers', function($headers, $wp_query){
if(isset($headers['X-Pingback'])){
unset($headers['X-Pingback']);
}
return $headers;
}, 11, 2);
add_filter( 'xmlrpc_methods', function($methods){
unset( $methods['pingback.ping'] );
unset( $methods['pingback.extensions.getPingbacks'] );
unset( $methods['wp.getUsersBlogs'] ); // Block brute force discovery of existing users
unset( $methods['system.multicall'] );
unset( $methods['system.listMethods'] );
unset( $methods['system.getCapabilities'] );
return $methods;
});
// Just disable pingback.ping functionality while leaving XMLRPC intact?
add_action('xmlrpc_call', function($method){
if($method != 'pingback.ping') return;
wp_die(
'This site does not have pingback.',
'Pingback not Enabled!',
array('response' => 403)
);
});
En outre, si vous souhaitez fermer tous les pingbacks existants, procédez comme suit:
1) Ouvrez phpmyadmin et accédez à la section SQL:
2) Saisissez les informations suivantes:
UPDATE wp_posts SET ping_status="closed";
3) Tous les pingbacks existants devraient maintenant être fermés
return '0'
ne va pas fonctionner comme prévu. La chaîne'0'
renverra true.add_filter( 'pre_option_enable_xmlrpc', '__return_false' );