wordpress-activitypub/includes/class-rest-activitypub-outbox.php

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<?php
/**
* ActivityPub Outbox Class
*
* @author Matthias Pfefferle
*/
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class Rest_Activitypub_Outbox {
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/**
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* Register routes
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*/
public static function register_routes() {
register_rest_route(
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'activitypub/1.0', '/users/(?P<id>\d+)/outbox', array(
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array(
'methods' => WP_REST_Server::READABLE,
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'callback' => array( 'Rest_Activitypub_Outbox', 'get' ),
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'args' => self::request_parameters(),
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),
)
);
}
public static function get( $request ) {
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$author_id = $request->get_param( 'id' );
$author = get_user_by( 'ID', $author_id );
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if ( ! $author ) {
return new WP_Error( 'rest_invalid_param', __( 'User not found', 'activitypub' ), array(
'status' => 404, 'params' => array(
'user_id' => __( 'User not found', 'activitypub' )
)
) );
}
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$page = $request->get_param( 'page', 0 );
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/*
* Action triggerd prior to the ActivityPub profile being created and sent to the client
*/
do_action( 'activitypub_outbox_pre' );
$json = new stdClass();
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$json->{'@context'} = get_activitypub_context();
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$json->id = home_url( add_query_arg( NULL, NULL ) );
$json->generator = 'http://wordpress.org/?v=' . get_bloginfo_rss( 'version' );
$json->actor = get_author_posts_url( $author_id );
$json->type = 'OrderedCollectionPage';
$json->partOf = get_rest_url( null, "/activitypub/1.0/users/$author_id/outbox" ); // phpcs:ignore
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$count_posts = wp_count_posts();
$json->totalItems = intval( $count_posts->publish );
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$posts = get_posts( array(
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'posts_per_page' => 10,
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'author' => $author_id,
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'offset' => $page * 10,
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) );
$json->first = add_query_arg( 'page', 0, $json->partOf );
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$json->last = add_query_arg( 'page', ( ceil ( $json->totalItems / 10 ) ) - 1, $json->partOf );
if ( ( ceil ( $json->totalItems / 10 ) ) - 1 > $page ) {
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$json->next = add_query_arg( 'page', ++$page, $json->partOf );
}
foreach ( $posts as $post ) {
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$activitypub_post = new Activitypub_Post( $post );
$json->orderedItems[] = $activitypub_post->to_json_array(); // phpcs:ignore
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}
// filter output
$json = apply_filters( 'activitypub_outbox_array', $json );
/*
* Action triggerd after the ActivityPub profile has been created and sent to the client
*/
do_action( 'activitypub_outbox_post' );
$response = new WP_REST_Response( $json, 200 );
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$response->header( 'Content-Type', 'application/activity+json' );
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return $response;
}
public static function request_parameters() {
$params = array();
$params['page'] = array(
'type' => 'integer',
);
$params['id'] = array(
'required' => true,
'type' => 'integer',
);
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return $params;
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}
}