check_comment_flood_db

Source code

function check_comment_flood_db( $ip, $email, $date ) {

	global $wpdb;

	if ( current_user_can( 'manage_options' ) )

		return; // don't throttle admins

	$hour_ago = gmdate( 'Y-m-d H:i:s', time() - 3600 );

	if ( $lasttime = $wpdb->get_var( $wpdb->prepare( "SELECT `comment_date_gmt` FROM `$wpdb->comments` WHERE `comment_date_gmt` >= %s AND ( `comment_author_IP` = %s OR `comment_author_email` = %s ) ORDER BY `comment_date_gmt` DESC LIMIT 1", $hour_ago, $ip, $email ) ) ) {

		$time_lastcomment = mysql2date('U', $lasttime, false);

		$time_newcomment  = mysql2date('U', $date, false);

		$flood_die = apply_filters('comment_flood_filter', false, $time_lastcomment, $time_newcomment);

		if ( $flood_die ) {

			do_action('comment_flood_trigger', $time_lastcomment, $time_newcomment);



			if ( defined('DOING_AJAX') )

				die( __('You are posting comments too quickly.  Slow down.') );



			wp_die( __('You are posting comments too quickly.  Slow down.'), '', array('response' => 403) );

		}

	}

}