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 ); } }