mirror of
https://github.com/Automattic/wordpress-activitypub
synced 2024-10-18 12:23:32 +00:00
127 lines
3.5 KiB
PHP
127 lines
3.5 KiB
PHP
<?php
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/**
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* Link class.
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*
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* @package Activitypub
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*/
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namespace Activitypub;
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/**
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* ActivityPub Summery Links Class.
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*/
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class Link {
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/**
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* Initialize the class, registering WordPress hooks.
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*/
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public static function init() {
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\add_filter( 'activitypub_extra_field_content', array( self::class, 'the_content' ) );
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\add_filter( 'activitypub_activity_object_array', array( self::class, 'filter_activity_object' ), 99 );
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}
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/**
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* Filter only the activity object and replace the summary with URLs.
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*
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* @param array $activity The activity object array.
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*
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* @return array Rhe activity object array.
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*/
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public static function filter_activity_object( $activity ) {
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/* phpcs:ignore Squiz.PHP.CommentedOutCode.Found
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Only changed it for Person and Group as long is not merged: https://github.com/mastodon/mastodon/pull/28629
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*/
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if ( ! empty( $activity['summary'] ) && in_array( $activity['type'], array( 'Person', 'Group' ), true ) ) {
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$activity['summary'] = self::the_content( $activity['summary'] );
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}
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if ( ! empty( $activity['content'] ) ) {
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$activity['content'] = self::the_content( $activity['content'] );
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}
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return $activity;
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}
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/**
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* Filter to replace the URLS in the content with links
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*
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* @param string $the_content The post content.
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*
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* @return string the filtered post content.
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*/
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public static function the_content( $the_content ) {
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return enrich_content_data( $the_content, '/' . ACTIVITYPUB_URL_REGEXP . '/i', array( self::class, 'replace_with_links' ) );
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}
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/**
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* A callback for preg_replace to build the links.
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*
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* Link shortening https://docs.joinmastodon.org/api/guidelines/#links
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*
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* @param array $result The preg_match results.
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*
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* @return string The final string.
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*/
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public static function replace_with_links( $result ) {
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if ( 'www.' === substr( $result[0], 0, 4 ) ) {
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$result[0] = 'https://' . $result[0];
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}
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$parsed_url = \wp_parse_url( html_entity_decode( $result[0] ) );
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if ( ! $parsed_url || empty( $parsed_url['host'] ) ) {
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return $result[0];
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}
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if ( empty( $parsed_url['scheme'] ) ) {
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$invisible_prefix = 'https://';
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} else {
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$invisible_prefix = $parsed_url['scheme'] . '://';
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}
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if ( ! empty( $parsed_url['user'] ) ) {
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$invisible_prefix .= $parsed_url['user'];
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}
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if ( ! empty( $parsed_url['pass'] ) ) {
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$invisible_prefix .= ':' . $parsed_url['pass'];
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}
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if ( ! empty( $parsed_url['user'] ) ) {
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$invisible_prefix .= '@';
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}
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$text_url = $parsed_url['host'];
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if ( 'www.' === substr( $text_url, 0, 4 ) ) {
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$text_url = substr( $text_url, 4 );
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$invisible_prefix .= 'www.';
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}
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if ( ! empty( $parsed_url['port'] ) ) {
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$text_url .= ':' . $parsed_url['port'];
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}
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if ( ! empty( $parsed_url['path'] ) ) {
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$text_url .= $parsed_url['path'];
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}
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if ( ! empty( $parsed_url['query'] ) ) {
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$text_url .= '?' . $parsed_url['query'];
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}
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if ( ! empty( $parsed_url['fragment'] ) ) {
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$text_url .= '#' . $parsed_url['fragment'];
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}
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$display = \substr( $text_url, 0, 30 );
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$invisible_suffix = \substr( $text_url, 30 );
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$display_class = '';
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if ( $invisible_suffix ) {
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$display_class .= 'ellipsis';
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}
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$rel = apply_filters( 'activitypub_link_rel', 'nofollow noopener noreferrer' );
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return \sprintf(
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'<a href="%s" target="_blank" rel="%s" translate="no"><span class="invisible">%s</span><span class="%s">%s</span><span class="invisible">%s</span></a>',
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esc_url( $result[0] ),
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$rel,
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esc_html( $invisible_prefix ),
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$display_class,
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esc_html( $display ),
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esc_html( $invisible_suffix )
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);
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}
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}
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