Question

wp_check_comment_flood( bool $is_flood,  string $ip,  string $email,  string $date,  bool $avoid_die = false )

Checks whether comment flooding is occurring.

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description

Won’t run, if current user can manage options, so to not block administrators.

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参数

$is_flood

(bool) (Required) Is a comment flooding occurring?

$ip

(string) (Required) Comment IP.

$email

(string) (Required) Comment author email address.

$date

(string) (Required) MySQL time string.

$avoid_die

(bool) (Optional) When true, a disallowed comment will result in the function returning a WP_Error object, rather than executing wp_die().

Default value: false

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返回值

(bool) Whether comment flooding is occurring.

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源代码

File: wp-includes/comment.php

function wp_check_comment_flood( $is_flood, $ip, $email, $date, $avoid_die = false ) {

	global $wpdb;

	// Another callback has declared a flood. Trust it.
	if ( true === $is_flood ) {
		return $is_flood;
	}

	// don't throttle admins or moderators
	if ( current_user_can( 'manage_options' ) || current_user_can( 'moderate_comments' ) ) {
		return false;
	}
	$hour_ago = gmdate( 'Y-m-d H:i:s', time() - HOUR_IN_SECONDS );

	if ( is_user_logged_in() ) {
		$user = get_current_user_id();
		$check_column = '`user_id`';
	} else {
		$user = $ip;
		$check_column = '`comment_author_IP`';
	}

	$sql = $wpdb->prepare(
		"SELECT `comment_date_gmt` FROM `$wpdb->comments` WHERE `comment_date_gmt` >= %s AND ( $check_column = %s OR `comment_author_email` = %s ) ORDER BY `comment_date_gmt` DESC LIMIT 1",
		$hour_ago,
		$user,
		$email
	);
	$lasttime = $wpdb->get_var( $sql );
	if ( $lasttime ) {
		$time_lastcomment = mysql2date('U', $lasttime, false);
		$time_newcomment  = mysql2date('U', $date, false);
		/**
		 * Filters the comment flood status.
		 *
		 * @since 2.1.0
		 *
		 * @param bool $bool             Whether a comment flood is occurring. Default false.
		 * @param int  $time_lastcomment Timestamp of when the last comment was posted.
		 * @param int  $time_newcomment  Timestamp of when the new comment was posted.
		 */
		$flood_die = apply_filters( 'comment_flood_filter', false, $time_lastcomment, $time_newcomment );
		if ( $flood_die ) {
			/**
			 * Fires before the comment flood message is triggered.
			 *
			 * @since 1.5.0
			 *
			 * @param int $time_lastcomment Timestamp of when the last comment was posted.
			 * @param int $time_newcomment  Timestamp of when the new comment was posted.
			 */
			do_action( 'comment_flood_trigger', $time_lastcomment, $time_newcomment );
			if ( true === $avoid_die ) {
				return true;
			} else {
				if ( wp_doing_ajax() ) {
					die( __('You are posting comments too quickly. Slow down.') );
				}

				wp_die( __( 'You are posting comments too quickly. Slow down.' ), 429 );
			}
		}
	}

	return false;
}

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更新日志

Version	description
4.7.0	Introduced.

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相关函数

Uses

• wp-includes/load.php: wp_doing_ajax()
• wp-includes/capabilities.php: current_user_can()
• wp-includes/l10n.php: __()
• wp-includes/pluggable.php: is_user_logged_in()
• wp-includes/functions.php: wp_die()
• wp-includes/functions.php: mysql2date()
• wp-includes/plugin.php: apply_filters()
• wp-includes/plugin.php: do_action()
• wp-includes/user.php: get_current_user_id()
• wp-includes/wp-db.php: wpdb::get_var()
• wp-includes/wp-db.php: wpdb::prepare()
• wp-includes/comment.php: comment_flood_filter
• wp-includes/comment.php: comment_flood_trigger
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User Contributed Notes