redirect = $redirect;
$this->robots = $robots;
}
/**
* Initializes the integration.
*
* This is the place to register hooks and filters.
*
* @return void
*/
public function register_hooks() {
if ( $this->clean_reply_to_com() ) {
\add_filter( 'comment_reply_link', [ $this, 'remove_reply_to_com' ] );
\add_action( 'template_redirect', [ $this, 'replytocom_redirect' ], 1 );
}
// When users view a reply to a comment, this URL parameter is set. These should never be indexed separately.
if ( $this->get_replytocom_parameter() !== null ) {
\add_filter( 'wpseo_robots_array', [ $this->robots, 'set_robots_no_index' ] );
}
}
/**
* Checks if the url contains the ?replytocom query parameter.
*
* @codeCoverageIgnore Wraps the filter input.
*
* @return string|null The value of replytocom or null if it does not exist.
*/
protected function get_replytocom_parameter() {
// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: We are not processing form information.
if ( isset( $_GET['replytocom'] ) && \is_string( $_GET['replytocom'] ) ) {
// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: We are not processing form information.
return \sanitize_text_field( \wp_unslash( $_GET['replytocom'] ) );
}
return null;
}
/**
* Removes the ?replytocom variable from the link, replacing it with a #comment- anchor.
*
* @todo Should this function also allow for relative urls ?
*
* @param string $link The comment link as a string.
*
* @return string The modified link.
*/
public function remove_reply_to_com( $link ) {
return \preg_replace( '`href=(["\'])(?:.*(?:\?|&|&)replytocom=(\d+)#respond)`', 'href=$1#comment-$2', $link );
}
/**
* Redirects out the ?replytocom variables.
*
* @return bool True when redirect has been done.
*/
public function replytocom_redirect() {
if ( isset( $_GET['replytocom'] ) && \is_singular() ) {
$url = \get_permalink( $GLOBALS['post']->ID );
$hash = \sanitize_text_field( \wp_unslash( $_GET['replytocom'] ) );
$query_string = '';
if ( isset( $_SERVER['QUERY_STRING'] ) ) {
$query_string = \remove_query_arg( 'replytocom', \sanitize_text_field( \wp_unslash( $_SERVER['QUERY_STRING'] ) ) );
}
if ( ! empty( $query_string ) ) {
$url .= '?' . $query_string;
}
$url .= '#comment-' . $hash;
$this->redirect->do_safe_redirect( $url, 301 );
return true;
}
return false;
}
/**
* Checks whether we can allow the feature that removes ?replytocom query parameters.
*
* @codeCoverageIgnore It just wraps a call to a filter.
*
* @return bool True to remove, false not to remove.
*/
private function clean_reply_to_com() {
/**
* Filter: 'wpseo_remove_reply_to_com' - Allow disabling the feature that removes ?replytocom query parameters.
*
* @param bool $return True to remove, false not to remove.
*/
return (bool) \apply_filters( 'wpseo_remove_reply_to_com', true );
}
}