文件操作 - forget-spam-comment.php

文件: /home/moin/htdocs/www.moin.show/wp-content/plugins/forget-spam-comment/forget-spam-comment.php

编辑文件内容

<?php
/**
 * Plugin Name:       Forget Spam Comment
 * Plugin URI:        https://wordpress.org/plugins/forget-spam-comment/
 * Description:       The ultimate solution to stop spam comments in default commenting system of WordPress.
 * Author:            Gulshan Kumar
 * Author URI:        https://www.gulshankumar.net/
 * Version:           1.1.9
 * Text Domain:       forget-spam-comment
 * Domain Path:       /languages
 */
// If this file is called directly, abort.
defined('ABSPATH') OR die();

/* Register activation hook. */
register_activation_hook( __FILE__, 'forget_spam_comment_activation_hook' );

/**
 * Runs only when the plugin is activated.
 * @since 1.0.2
 */
function forget_spam_comment_activation_hook() {

/* Create transient data */
    set_transient( 'forget-spam-comment-activation-notice', true, 5 );
}

/* Add admin notice */
add_action( 'admin_notices', 'forget_spam_comment_notice' );

/**
 * Admin Notice on Activation.
 * @since 1.0.2
 */
function forget_spam_comment_notice(){

/* Check transient, if available display notice */
    if( get_transient( 'forget-spam-comment-activation-notice' ) ){
        ?><style>div#message.updated{ display: none; }</style>
        <div class="updated notice is-dismissible">
          <p><?php _e( 'Thank you for using Forget Spam Comment. 😎 <strong>Please clear Page Cache</strong>', 'forget-spam-comment' ); ?></p>
        </div>
        <?php
        /* Delete transient, only display this notice once. */
        delete_transient( 'forget-spam-comment-activation-notice' );
    }
}

// Support links
add_filter( 'plugin_action_links_' . plugin_basename(__FILE__), 'forget_spam_comment_add_action_links' );
function forget_spam_comment_add_action_links( $links ) {
    $plugin_shortcuts = array(
        '<a rel="noopener" title="Hire for Technical Support" href="https://www.gulshankumar.net/contact/" target="_blank">' . __('Work with Gulshan', 'forget-spam-comment') . '</a>',
        '<a rel="noopener" title="Show your support" href="https://ko-fi.com/gulshan" target="_blank" style="color:#080;">' . __('Buy developer a coffee', 'forget-spam-comment') . '</a>'
    );
    return array_merge( $links, $plugin_shortcuts );
}

// Step 1. Generate an unique key
$forget_spam_comment_key_source = defined( 'NONCE_SALT' ) && NONCE_SALT ? NONCE_SALT : $_SERVER['DOCUMENT_ROOT'] ; 
define( 'FORGET_SPAM_COMMENT_UNIQUE_KEY', md5( $forget_spam_comment_key_source ) );

// Step 2. Firstly, remove the Comment Action URL from HTML Document to prevent bot comments
add_filter( 'comment_form_defaults', 'forget_spam_comment_remove_comment_action_url');
function forget_spam_comment_remove_comment_action_url( $defaults ) {
	$defaults['action'] = '';
	return $defaults;
}

// Step 3. As visitor scroll the web page, fix the broken action URL including md5 hash as Query String Parameter
function forget_spam_comment_modify_action_url() {
	if ( is_singular() && comments_open() ) {
		echo "\n<script>";
		// Most popular IDs are listed here for compatibility with all popular themes
		echo "let commentForm = document.querySelector(\"#commentform, #ast-commentform, #fl-comment-form, #ht-commentform\");";
		echo "document.onscroll = function () {";
		echo 'commentForm.action = "' . wp_make_link_relative( get_site_url() ) . '/wp-comments-post.php?' . FORGET_SPAM_COMMENT_UNIQUE_KEY . '";'; // Uses WordPress Address (URL)
		echo "};";
		echo "</script>\n";
	}
}
add_action('wp_footer', 'forget_spam_comment_modify_action_url', 99);

// Step 4. Error message
function forget_spam_comment_block_response() {
	header('HTTP/1.1 400 Bad Request');
	header('Status: 400 Bad Request');
	header('Connection: Close');
	die('<h1>Error 400</h1><span style="padding:10px;background-color:#FFFF00">If you are an admin of this site, please clear once the Page Cache.</span>');
}

// Step 5. Allow POST request for comment if md5 hash matches in Request Header as Query String Parameter
$forget_spam_comment_request = 'wp-comments-post.php';
$forget_spam_comment_requested_uri = isset( $_SERVER['REQUEST_URI'] ) ? $_SERVER['REQUEST_URI'] : '';
$forget_spam_comment_post_request_received = isset( $_SERVER['REQUEST_METHOD'] ) && $_SERVER['REQUEST_METHOD'] === 'POST';
$forget_spam_comment_request_received = strpos( $forget_spam_comment_requested_uri, $forget_spam_comment_request ) !== false;
$forget_spam_comment_query_list = isset( $_SERVER['QUERY_STRING'] ) ? $_SERVER['QUERY_STRING'] : '';
$forget_spam_forget_spam_comment_requested_key = FORGET_SPAM_COMMENT_UNIQUE_KEY;
$forget_spam_comment_request_contain_key = $forget_spam_comment_query_list === $forget_spam_forget_spam_comment_requested_key;
$forget_spam_comment_referral_url = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : '';
// Check if the referral URL contains the original site and the unique hash query string is present
if ( $forget_spam_comment_post_request_received &&
     $forget_spam_comment_request_received &&
     ! ( $forget_spam_comment_request_contain_key && strpos( $forget_spam_comment_referral_url, get_home_url() ) !== false ) ) { // Uses Site Address (URL)
    forget_spam_comment_block_response();
}
// Kindly share your feedback at https://wordpress.org/support/plugin/forget-spam-comment/reviews/#new-post

文件操作 - forget-spam-comment.php

文件: /home/moin/htdocs/www.moin.show/wp-content/plugins/forget-spam-comment/forget-spam-comment.php

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