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118 lines
3.1 KiB
PHP

<?php
/**
* The class handles the comments functionalities.
*
* @since 1.0.33
* @package RankMath
* @subpackage RankMath\Frontend
* @author Rank Math <support@rankmath.com>
*/
namespace RankMath\Frontend;
use RankMath\Helper;
use RankMath\Traits\Hooker;
use RankMath\Helpers\HTML;
use RankMath\Helpers\Str;
use RankMath\Helpers\Security;
defined( 'ABSPATH' ) || exit;
/**
* Comments class.
*
* @copyright Copyright (C) 2008-2019, Yoast BV
* The following code is a derivative work of the code from the Yoast(https://github.com/Yoast/wordpress-seo/), which is licensed under GPL v3.
*/
class Comments {
use Hooker;
/**
* The Constructor.
*/
public function __construct() {
$this->action( 'wp_head', 'add_attributes', 99 );
}
/**
* Add UGC attribute and remove ?replytocom parameters.
*/
public function add_attributes() {
/**
* Enable or disable the feature that adds ugc attribute.
*
* @param bool $remove Whether to remove the parameters.
*/
if ( $this->do_filter( 'frontend/add_ugc_attribute', true ) ) {
$this->filter( 'comment_text', 'add_ugc_attribute' );
$this->filter( 'get_comment_author_link', 'add_ugc_attribute' );
}
/**
* Enable or disable the feature that removes the ?replytocom parameters.
*
* @param bool $remove Whether to remove the parameters.
*/
if ( $this->do_filter( 'frontend/remove_reply_to_com', true ) ) {
$this->filter( 'comment_reply_link', 'remove_reply_to_com' );
$this->action( 'template_redirect', 'replytocom_redirect', 1 );
}
}
/**
* Replace the ?replytocom with #comment-[number] in a link.
*
* @param string $link The comment link as a string.
* @return string The new link.
*/
public function remove_reply_to_com( $link ) {
return preg_replace( '`href=(["\'])(?:.*(?:\?|&|&#038;)replytocom=(\d+)#respond)`', 'href=$1#comment-$2', $link );
}
/**
* Redirect the ?replytocom URLs.
*
* @return bool True when redirect has been done.
*/
public function replytocom_redirect() {
if ( isset( $_GET['replytocom'] ) && is_singular() ) {
$url = get_permalink( $GLOBALS['post']->ID );
$query_string = Security::remove_query_arg_raw( 'replytocom', sanitize_text_field( $_SERVER['QUERY_STRING'] ) );
if ( ! empty( $query_string ) ) {
$url .= '?' . $query_string;
}
$url .= '#comment-' . sanitize_text_field( $_GET['replytocom'] );
Helper::redirect( $url, 301 );
return true;
}
return false;
}
/**
* Add 'ugc' attribute to comment.
*
* @param string $text Comment or author link text to add ugc attribute.
* @return string
*/
public function add_ugc_attribute( $text ) {
preg_match_all( '/<(a\s[^>]+)>/', $text, $matches );
if ( empty( $matches ) || empty( $matches[0] ) ) {
return $text;
}
foreach ( $matches[0] as $link ) {
$attrs = HTML::extract_attributes( $link );
$attrs['rel'] = empty( $attrs['rel'] ) ? 'ugc' : ( Str::contains( 'ugc', $attrs['rel'] ) ? $attrs['rel'] : $attrs['rel'] . ' ugc' );
$new = '<a' . HTML::attributes_to_string( $attrs ) . '>';
$text = str_replace( $link, $new, $text );
}
return $text;
}
}