homelab-brain/arakava-news/mu-plugins/arakava-comment-spam-guard.php

56 lines
1.4 KiB
PHP

<?php
/**
* Plugin Name: Arakava Comment Spam Guard (MU)
* Description: Markiert Kommentare mit blockierten Kurz-URL-Hosts als Spam (Standard: shorturl.fm). Erweiterbar per Filter arakava_spam_guard_blocked_hosts.
* Version: 1.0.0
* Author: Homelab / Arakava
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* @param string|int $approved Vorläufiger Freigabe-Status.
* @param array $commentdata Rohdaten vor dem Speichern.
* @return string|int
*/
function arakava_spam_guard_pre_comment_approved( $approved, $commentdata ) {
if ( is_string( $approved ) && 'spam' === $approved ) {
return $approved;
}
$hosts = apply_filters(
'arakava_spam_guard_blocked_hosts',
array(
'shorturl.fm',
)
);
if ( empty( $hosts ) || ! is_array( $hosts ) ) {
return $approved;
}
$parts = array();
if ( ! empty( $commentdata['comment_content'] ) && is_string( $commentdata['comment_content'] ) ) {
$parts[] = $commentdata['comment_content'];
}
if ( ! empty( $commentdata['comment_author_url'] ) && is_string( $commentdata['comment_author_url'] ) ) {
$parts[] = $commentdata['comment_author_url'];
}
$blob = strtolower( implode( ' ', $parts ) );
foreach ( $hosts as $host ) {
$host = strtolower( trim( (string) $host ) );
if ( '' === $host ) {
continue;
}
if ( false !== strpos( $blob, $host ) ) {
return 'spam';
}
}
return $approved;
}
add_filter( 'pre_comment_approved', 'arakava_spam_guard_pre_comment_approved', 5, 2 );