André Menrath
970f3e7754
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and phpcs
126 lines
3.2 KiB
PHP
126 lines
3.2 KiB
PHP
<?php
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/**
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* Class for handling and saving the ActivityPub event sources (i.e. follows).
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*
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* @package Event_Bridge_For_ActivityPub
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* @since 1.0.0
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* @license AGPL-3.0-or-later
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*/
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namespace Event_Bridge_For_ActivityPub;
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use Activitypub\Activity\Extended_Object\Event;
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use Activitypub\Collection\Actors;
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use function Activitypub\get_remote_metadata_by_actor;
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/**
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* Class for handling and saving the ActivityPub event sources (i.e. follows).
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*
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* @package Event_Bridge_For_ActivityPub
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*/
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class Event_Sources {
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/**
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* The custom post type.
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*/
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const POST_TYPE = 'event_bridge_follow';
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/**
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* Constructor.
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*/
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public function __construct() {
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\add_action( 'activitypub_inbox', array( $this, 'handle_activitypub_inbox' ), 15, 3 );
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}
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/**
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* Handle the ActivityPub Inbox.
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*
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* @param array $data The raw post data JSON object as an associative array.
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* @param int $user_id The target user id.
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* @param string $type The activity type.
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*/
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public static function handle_activitypub_inbox( $data, $user_id, $type ) {
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if ( Actors::APPLICATION_USER_ID !== $user_id ) {
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return;
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}
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if ( ! in_array( $type, array( 'Create', 'Delete', 'Announce', 'Undo Announce' ), true ) ) {
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return;
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}
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$event = Event::init_from_array( $data );
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return $event;
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}
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/**
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* Get metadata of ActivityPub Actor by ID/URL.
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*
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* @param string $url The URL or ID of the ActivityPub actor.
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*/
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public static function get_metadata( $url ) {
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if ( ! is_string( $url ) ) {
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return array();
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}
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if ( false !== strpos( $url, '@' ) ) {
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if ( false === strpos( $url, '/' ) && preg_match( '#^https?://#', $url, $m ) ) {
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$url = substr( $url, strlen( $m[0] ) );
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}
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}
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return get_remote_metadata_by_actor( $url );
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}
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/**
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* Respond to the Ajax request to fetch feeds
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*/
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public function ajax_fetch_events() {
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if ( ! isset( $_POST['Event_Bridge_For_ActivityPub'] ) ) {
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wp_send_json_error( 'missing-parameters' );
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}
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check_ajax_referer( 'fetch-events-' . sanitize_user( wp_unslash( $_POST['actor'] ) ) );
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$actor = Actors::get_by_resource( sanitize_user( wp_unslash( $_POST['actor'] ) ) );
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if ( ! $actor ) {
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wp_send_json_error( 'unknown-actor' );
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}
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$actor->retrieve();
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wp_send_json_success();
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}
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/**
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* Get the Application actor via FEP-2677.
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*
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* @param string $domain The domain without scheme.
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* @return bool|string The URL/ID of the application actor, false if not found.
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*/
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public static function get_application_actor( $domain ) {
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$result = wp_remote_get( 'https://' . $domain . '/.well-known/nodeinfo' );
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if ( is_wp_error( $result ) ) {
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return false;
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}
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$body = wp_remote_retrieve_body( $result );
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$nodeinfo = json_decode( $body, true );
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// Check if 'links' exists and is an array.
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if ( isset( $nodeinfo['links'] ) && is_array( $nodeinfo['links'] ) ) {
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foreach ( $nodeinfo['links'] as $link ) {
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// Check if this link matches the application actor rel.
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if ( isset( $link['rel'] ) && 'https://www.w3.org/ns/activitystreams#Application' === $link['rel'] ) {
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if ( is_string( $link['href'] ) ) {
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return $link['href'];
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}
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break;
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}
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}
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}
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// Return false if no application actor is found.
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return false;
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}
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}
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