133 lines
3.8 KiB
PHP
133 lines
3.8 KiB
PHP
<?php
|
|
namespace pterotype\util;
|
|
|
|
require_once plugin_dir_path( __FILE__ ) . 'server/objects.php';
|
|
|
|
function dereference_object( $object ) {
|
|
return dereference_object_helper( $object, 0 );
|
|
}
|
|
|
|
function dereference_object_helper( $object, $depth ) {
|
|
if ( $depth === 30 ) {
|
|
return $object;
|
|
}
|
|
if ( is_array( $object ) ) {
|
|
if ( array_key_exists( 'type', $object ) &&
|
|
$object['type'] === 'Link' &&
|
|
array_key_exists( 'href', $object ) &&
|
|
filter_var( $object['href'], FILTER_VALIDATE_URL ) ) {
|
|
return get_object_from_url_helper( $object['href'], $depth );
|
|
}
|
|
return $object;
|
|
} else if ( filter_var( $object, FILTER_VALIDATE_URL ) ) {
|
|
return get_object_from_url_helper( $object, $depth );
|
|
} else {
|
|
return new \WP_Error(
|
|
'invalid_object',
|
|
__( 'Not a valid ActivityPub object or reference', 'pterotype' ),
|
|
array( 'status' => 400 )
|
|
);
|
|
}
|
|
}
|
|
|
|
function get_object_from_url( $url ) {
|
|
return get_object_from_url_helper( $url, 0 );
|
|
}
|
|
|
|
function get_object_from_url_helper( $url, $depth ) {
|
|
$cached_object = \pterotype\objects\get_object_by_activitypub_id( $url );
|
|
if ( $cached_object && ! is_wp_error( $cached_object ) ) {
|
|
return dereference_object_helper( $cached_object, $depth + 1 );
|
|
}
|
|
if ( is_local_url( $url ) ) {
|
|
return retrieve_local_object( $url );
|
|
}
|
|
$response = wp_remote_get( $url, array(
|
|
'headers' => array(
|
|
'Accept' => 'application/ld+json',
|
|
),
|
|
) );
|
|
if ( is_wp_error( $response ) ) {
|
|
return $response;
|
|
}
|
|
$body = wp_remote_retrieve_body( $response );
|
|
if ( empty( $body ) ) {
|
|
return new \WP_Error(
|
|
'not_found',
|
|
__( 'The object did not dereference to a valid object', 'pterotype' ),
|
|
array( 'status' => 404 )
|
|
);
|
|
}
|
|
$body_array = json_decode( $body, true );
|
|
return dereference_object_helper( $body_array, $depth + 1 );
|
|
}
|
|
|
|
function retrieve_local_object( $url ) {
|
|
$server = rest_get_server();
|
|
$request = \WP_REST_Request::from_url( $url );
|
|
if ( ! $request ) {
|
|
return new \WP_Error(
|
|
'not_local_url',
|
|
__( 'Expected a local URL', 'pterotype' )
|
|
);
|
|
}
|
|
$response = $server->dispatch( $request );
|
|
if ( $response->is_error() ) {
|
|
return $response->as_error();
|
|
} else {
|
|
return $response->get_data();
|
|
}
|
|
}
|
|
|
|
function is_local_url( $url ) {
|
|
$parsed = parse_url( $url );
|
|
if ( $parsed ) {
|
|
$parsed_site_url = parse_url( get_site_url() );
|
|
$site_host = $parsed_site_url['host'];
|
|
return $parsed['host'] === $site_host;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function is_same_object( $object1, $object2 ) {
|
|
return get_id( $object1 ) === get_id( $object2 );
|
|
}
|
|
|
|
function get_id( $object ) {
|
|
if ( is_array( $object ) ) {
|
|
return array_key_exists( 'id', $object ) ?
|
|
$object['id'] :
|
|
null;
|
|
} else {
|
|
return $object;
|
|
}
|
|
}
|
|
|
|
function decompact_object( $object, $fields ) {
|
|
return decompact_object_helper( $object, $fields, 0 );
|
|
}
|
|
|
|
function decompact_object_helper( $object, $fields, $depth ) {
|
|
if ( $depth == 3 ) {
|
|
return $object;
|
|
}
|
|
if ( ! is_array( $object ) ) {
|
|
return $object;
|
|
}
|
|
$decompacted = $object;
|
|
foreach ( $object as $field => $value ) {
|
|
if ( ! in_array( $field, $fields ) ) {
|
|
continue;
|
|
}
|
|
if ( is_array( $value ) ) {
|
|
$decompacted[$field] = decompact_object_helper( $value, $fields, $depth + 1 );
|
|
} else if ( filter_var( $value, FILTER_VALIDATE_URL ) ) {
|
|
$decompacted[$field] = decompact_object_helper(
|
|
dereference_object( $value ), $fields, $depth + 1
|
|
);
|
|
}
|
|
}
|
|
return $decompacted;
|
|
}
|
|
?>
|