Сегодня днем, в очередной раз, очищая комментарии в админке WordPress, я решил что с меня хватит и спам я больше чистить не буду. Но не потому, что я заброшу свой блог, а потому что найду решение этой проблемы. Конечно же я до сегодняшнего дня перепробовал кучу плагинов, но ни один из них нормально не помог бороться со спамом.
Итак, первое что я сделал – это удалил все плагины с Capcha, блокированием по черным спискам и прочую неработающую фигню. Они нам больше никогда не понадобятся, а если и понадобятся – это только при регистрации.
В 99% случаев спамеры отправляют url своих ресурсов. От этого то и будем отталкиваться. В одной из предыдущих заметок я уже рассказывал, что убрал из формы отправки комментария параметр “Сайт”. Так вот, спамеры все равно отправляют этот параметр заполненным в своем POST запросе. Этим то мы и воспользуемся. Если есть параметр ‘url’ – шлем спамера “подальше”. Также я заметил, что спамеры в качестве текста комментария используют заголовок темы, потому если коммент будет совпадать с заголовком – шлем спамера “еще дальше”.
И теперь самое главное – добавим в форму комментария свое поле, которое обязательно для заполнения. К примеру я использовал простое текстовое поле с просьбой ввести от пользователя url своего блога.
Открываем файл wp-includes/comment-template.php и ищем в нем функцию comment_form. В ней находим блок
$fields = array(
'author' => '<p class="comment-form-author">' . '<label for="author">' . __( 'Name' ) . ( $req ? ' <span class="required">*</span>' : '' ) . '</label> ' .
'<input id="author" name="author" type="text" value="' . esc_attr( $commenter['comment_author'] ) . '" size="30"' . $aria_req . ' /></p>',
'email' => '<p class="comment-form-email"><label for="email">' . __( 'Email' ) . ( $req ? ' <span class="required">*</span>' : '' ) . '</label> ' .
'<input id="email" name="email" type="text" value="' . esc_attr( $commenter['comment_author_email'] ) . '" size="30"' . $aria_req . ' /></p>',
В этот массив добавляем наше поле АнтиСпам. В конечном счете оно выглядит так:
$fields = array(
'author' => '<p class="comment-form-author">' . '<label for="author">' . __( 'Name' ) . ( $req ? ' <span class="required">*</span>' : '' ) . '</label> ' .
'<input id="author" name="author" type="text" value="' . esc_attr( $commenter['comment_author'] ) . '" size="30"' . $aria_req . ' /></p>',
'email' => '<p class="comment-form-email"><label for="email">' . __( 'Email' ) . ( $req ? ' <span class="required">*</span>' : '' ) . '</label> ' .
'<input id="email" name="email" type="text" value="' . esc_attr( $commenter['comment_author_email'] ) . '" size="30"' . $aria_req . ' /></p>',
'spam' => '<p class="comment-form-spam"><label for="spam">' . __( 'Antispam: please enter voip-lab.ru' ) . ( $req ? ' <span class="required">*</span>' : '' ) . '</label> ' .
'<input id="spam" name="spam" type="text" value="' . esc_attr( $commenter['comment_author_spam'] ) . '" size="30"' . $aria_req . ' /></p>');
Далее нам будет необходимо обработать новое поле spam. Для этого открываем файл wp-comments-post.php в корне движка WordPress и находим блок
} else {
if ( get_option('comment_registration') || 'private' == $status )
wp_die( __('Sorry, you must be logged in to post a comment.') );
}
И сразу после него добавляем наш код, котором, если пользователь не авторизован, будет происходить проверка что он не спамер
if ( !is_user_logged_in() ) {
if($comment_spam!='voip-lab.ru') wp_die( __('If you are not spamer go back and set text field Antispam to voip-lab.ru.') );
if($comment_author_url!='') wp_die( __('You are fucking spamer.') );
if($comment_content == get_the_title($post)) wp_die( __('You are fucking spamer.') );
}
Далее необходимо отключить trackback, т.к. очень много спама валится через него. Долго искать решение не пришлось. В корне сайта просто удаляем или переименовываем файл wp-trackback.php.
На этом настройка своей АнтиСпам системы закончена. Приведу немного статистики – когда я использовал капчи и другие плагины, я удалял порядка 300-400 спам сообщений в день. В моем решении мне не пришло ни одного сообщения от спамеров. Скажем им “гуд бай” =)
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