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updated plugin ActivityPub version 8.3.0

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This commit is contained in:
KawaiiPunk
2026-06-03 21:28:46 +00:00
committed by Gitium
parent a4b78ec277
commit 6fe182458a
340 changed files with 43232 additions and 7568 deletions
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219
wp-content/plugins/activitypub/includes/rest/class-server.php
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@ -7,13 +7,6 @@
namespace Activitypub\Rest;
use WP_Error;
use WP_REST_Server;
use WP_REST_Response;
use Activitypub\Signature;
use function Activitypub\use_authorized_fetch;
/**
* ActivityPub Server REST-Class.
*
@ -26,83 +19,23 @@ class Server {
* Initialize the class, registering WordPress hooks.
*/
public static function init() {
self::add_hooks();
}
/**
* Add sever hooks.
*/
public static function add_hooks() {
\add_filter( 'rest_request_before_callbacks', array( self::class, 'validate_requests' ), 9, 3 );
\add_filter( 'rest_request_parameter_order', array( self::class, 'request_parameter_order' ), 10, 2 );
}
/**
* Callback function to authorize an api request.
*
* The function is meant to be used as part of permission callbacks for rest api endpoints.
*
* It verifies the signature of POST, PUT, PATCH, and DELETE requests, as well as GET requests in secure mode.
* You can use the filter 'activitypub_defer_signature_verification' to defer the signature verification.
* HEAD requests are always bypassed.
*
* @see https://www.w3.org/wiki/SocialCG/ActivityPub/Primer/Authentication_Authorization#Authorized_fetch
* @see https://swicg.github.io/activitypub-http-signature/#authorized-fetch
*
* @param \WP_REST_Request $request The request object.
*
* @return bool|\WP_Error True if the request is authorized, WP_Error if not.
*/
public static function verify_signature( $request ) {
if ( 'HEAD' === $request->get_method() ) {
return true;
}
/**
* Filter to defer signature verification.
*
* Skip signature verification for debugging purposes or to reduce load for
* certain Activity-Types, like "Delete".
*
* @param bool $defer Whether to defer signature verification.
* @param \WP_REST_Request $request The request used to generate the response.
*
* @return bool Whether to defer signature verification.
*/
$defer = \apply_filters( 'activitypub_defer_signature_verification', false, $request );
if ( $defer ) {
return true;
}
if (
// POST-Requests always have to be signed.
'GET' !== $request->get_method() ||
// GET-Requests only require a signature in secure mode.
( 'GET' === $request->get_method() && use_authorized_fetch() )
) {
$verified_request = Signature::verify_http_signature( $request );
if ( \is_wp_error( $verified_request ) ) {
return new WP_Error(
'activitypub_signature_verification',
$verified_request->get_error_message(),
array( 'status' => 401 )
);
}
}
return true;
\add_filter( 'rest_post_dispatch', array( self::class, 'filter_output' ), 10, 3 );
\add_filter( 'rest_post_dispatch', array( self::class, 'add_cors_headers' ), 10, 3 );
\add_filter( 'rest_allowed_cors_headers', array( self::class, 'allow_cors_headers' ), 10, 2 );
}
/**
* Callback function to validate incoming ActivityPub requests
*
* @param WP_REST_Response|\WP_HTTP_Response|WP_Error|mixed $response Result to send to the client.
* Usually a WP_REST_Response or WP_Error.
* @param array $handler Route handler used for the request.
* @param \WP_REST_Request $request Request used to generate the response.
* @param \WP_REST_Response|\WP_HTTP_Response|\WP_Error|mixed $response Result to send to the client.
* Usually a WP_REST_Response or WP_Error.
* @param array $handler Route handler used for the request.
* @param \WP_REST_Request $request Request used to generate the response.
*
* @return mixed|WP_Error The response, error, or modified response.
* @return mixed|\WP_Error The response, error, or modified response.
*/
public static function validate_requests( $response, $handler, $request ) {
if ( 'HEAD' === $request->get_method() ) {
@ -129,7 +62,7 @@ class Server {
ACTIVITYPUB_DISABLE_INCOMING_INTERACTIONS &&
in_array( $params['type'], array( 'Create', 'Like', 'Announce' ), true )
) {
return new WP_Error(
return new \WP_Error(
'activitypub_server_does_not_accept_incoming_interactions',
\__( 'This server does not accept incoming interactions.', 'activitypub' ),
// We have to use a 2XX status code here, because otherwise the response will be
@ -159,7 +92,7 @@ class Server {
$method = $request->get_method();
if ( WP_REST_Server::CREATABLE !== $method ) {
if ( \WP_REST_Server::CREATABLE !== $method ) {
return $order;
}
@ -170,4 +103,136 @@ class Server {
'defaults',
);
}
/**
* Filters the REST API response to properly handle the ActivityPub error formatting.
*
* @see https://codeberg.org/fediverse/fep/src/branch/main/fep/c180/fep-c180.md
*
* @param \WP_HTTP_Response $response Result to send to the client. Usually a `WP_REST_Response`.
* @param \WP_REST_Server $server Server instance.
* @param \WP_REST_Request $request Request used to generate the response.
*
* @return \WP_HTTP_Response The filtered response.
*/
public static function filter_output( $response, $server, $request ) {
$route = $request->get_route();
// Check if it is an activitypub request and exclude webfinger and nodeinfo endpoints.
if ( ! \str_starts_with( $route, '/' . ACTIVITYPUB_REST_NAMESPACE ) ) {
return $response;
}
// Exclude OAuth endpoints - they have their own error format per RFC 6749.
if ( \str_starts_with( $route, '/' . ACTIVITYPUB_REST_NAMESPACE . '/oauth' ) ) {
return $response;
}
// Only alter responses that return an error status code.
if ( $response->get_status() < 400 ) {
return $response;
}
$data = $response->get_data();
// Ensure that `$data` was already converted to a response.
if ( \is_wp_error( $data ) ) {
$response = \rest_convert_error_to_response( $data );
$data = $response->get_data();
}
$error = array(
'type' => 'about:blank',
'title' => $data['code'] ?? '',
'detail' => $data['message'] ?? '',
'status' => $response->get_status(),
/*
* Provides the unstructured error data.
*
* @see https://nodeinfo.diaspora.software/schema.html#metadata.
*/
'metadata' => $data,
);
$response->set_data( $error );
return $response;
}
/**
* Add CORS headers to ActivityPub REST responses.
*
* @param \WP_REST_Response $response The REST response.
* @param \WP_REST_Server $server The REST server instance.
* @param \WP_REST_Request $request The request object.
*
* @return \WP_REST_Response The modified response.
*/
public static function add_cors_headers( $response, $server, $request ) {
$route = $request->get_route();
$namespace = '/' . ACTIVITYPUB_REST_NAMESPACE;
// Only add CORS to ActivityPub endpoints, except the interactive OAuth authorize endpoint.
if ( ! \str_starts_with( $route, $namespace ) || \str_starts_with( $route, $namespace . '/oauth/authorize' ) ) {
return $response;
}
/*
* ActivityPub data is meant to be publicly readable by federation peers
* and browser-side clients. We do not enable credentialed cross-origin
* access: cookie auth would still be rejected by WordPress core's
* REST nonce check, and OAuth Bearer tokens travel in the
* Authorization header — which is permitted via Allow-Headers and
* does not require Allow-Credentials.
*
* Allow-Headers is contributed by core (which already lists `X-WP-Nonce`,
* `Authorization`, `Content-Type`, `Content-Disposition`, and `Content-MD5`)
* and extended for ActivityPub via the `rest_allowed_cors_headers` filter
* in self::allow_cors_headers().
*/
$response->header( 'Access-Control-Allow-Origin', '*' );
$response->header( 'Access-Control-Allow-Methods', 'GET, POST, OPTIONS' );
return $response;
}
/**
* Extend the CORS Allow-Headers list for ActivityPub REST endpoints.
*
* Adds the headers ActivityPub clients need on top of WordPress core's
* defaults: `Accept` for content negotiation and `Last-Event-ID` for
* Server-Sent Events resume.
*
* @since 8.3.0
*
* @param string[] $allow_headers Headers core currently permits in CORS requests.
* @param \WP_REST_Request $request The current REST request.
*
* @return string[] The (possibly extended) list of allowed headers.
*/
public static function allow_cors_headers( $allow_headers, $request ) {
$route = $request->get_route();
$namespace = '/' . ACTIVITYPUB_REST_NAMESPACE;
if ( ! \str_starts_with( $route, $namespace ) || \str_starts_with( $route, $namespace . '/oauth/authorize' ) ) {
return $allow_headers;
}
return \array_values( \array_unique( \array_merge( (array) $allow_headers, array( 'Accept', 'Last-Event-ID' ) ) ) );
}
/**
* Send CORS headers directly via header().
*
* Use this for endpoints that bypass the REST response flow
* (e.g. SSE streams that call exit() instead of returning a WP_REST_Response).
*
* @since 8.1.0
*/
public static function send_cors_headers() {
\header( 'Access-Control-Allow-Origin: *' );
\header( 'Access-Control-Allow-Methods: GET, POST, OPTIONS' );
\header( 'Access-Control-Allow-Headers: Authorization, X-WP-Nonce, Content-Disposition, Content-MD5, Content-Type, Accept, Last-Event-ID' );
}
}