55 lines
1.3 KiB
PHP
55 lines
1.3 KiB
PHP
<?php
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namespace Activitypub\Rest;
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use Activitypub\Signature;
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/**
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* ActivityPub Server REST-Class
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*
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* @author Django Doucet
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*
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* @see https://www.w3.org/TR/activitypub/#security-verification
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*/
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class Server {
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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( 'rest_request_before_callbacks', array( '\Activitypub\Rest\Server', 'authorize_activitypub_requests' ), 10, 3 );
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}
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/**
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* Callback function to authorize each api requests
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*
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* @see \WP_REST_Request
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*
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* @param $response
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* @param $handler
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* @param \WP_REST_Request $request
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*
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* @return mixed|\WP_Error
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*/
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public static function authorize_activitypub_requests( $response, $handler, $request ) {
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$maybe_activitypub = $request->get_route();
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if ( str_starts_with( $maybe_activitypub, '/activitypub' ) ) {
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if ( 'POST' === $request->get_method() ) {
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$verified_request = Signature::verify_http_signature( $request );
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if ( \is_wp_error( $verified_request ) ) {
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return $verified_request;
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}
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} else {
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// SecureMode/Authorized fetch.
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$secure_mode = \get_option( 'activitypub_use_secure_mode', '0' );
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if ( $secure_mode ) {
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if ( \is_wp_error( $verified_request ) ) {
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return $verified_request;
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}
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}
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}
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}
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}
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}
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