365 lines
8.7 KiB
PHP
365 lines
8.7 KiB
PHP
<?php
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namespace Activitypub\Rest;
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use WP_Error;
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use WP_REST_Server;
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use WP_REST_Response;
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use Activitypub\Activity\Activity;
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use Activitypub\Collection\Users as User_Collection;
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use function Activitypub\get_context;
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use function Activitypub\url_to_authorid;
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use function Activitypub\get_rest_url_by_path;
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use function Activitypub\get_remote_metadata_by_actor;
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use function Activitypub\extract_recipients_from_activity;
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/**
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* ActivityPub Inbox REST-Class
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*
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* @author Matthias Pfefferle
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*
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* @see https://www.w3.org/TR/activitypub/#inbox
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*/
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class Inbox {
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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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self::register_routes();
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\add_action( 'activitypub_inbox_create', array( self::class, 'handle_create' ), 10, 2 );
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}
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/**
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* Register routes
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*/
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public static function register_routes() {
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\register_rest_route(
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ACTIVITYPUB_REST_NAMESPACE,
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'/inbox',
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array(
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array(
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'methods' => WP_REST_Server::CREATABLE,
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'callback' => array( self::class, 'shared_inbox_post' ),
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'args' => self::shared_inbox_post_parameters(),
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'permission_callback' => '__return_true',
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),
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)
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);
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\register_rest_route(
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ACTIVITYPUB_REST_NAMESPACE,
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'/users/(?P<user_id>[\w\-\.]+)/inbox',
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array(
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array(
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'methods' => WP_REST_Server::CREATABLE,
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'callback' => array( self::class, 'user_inbox_post' ),
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'args' => self::user_inbox_post_parameters(),
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'permission_callback' => '__return_true',
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),
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array(
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'methods' => WP_REST_Server::READABLE,
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'callback' => array( self::class, 'user_inbox_get' ),
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'args' => self::user_inbox_get_parameters(),
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'permission_callback' => '__return_true',
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),
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)
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);
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}
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/**
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* Renders the user-inbox
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*
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* @param WP_REST_Request $request
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* @return WP_REST_Response
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*/
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public static function user_inbox_get( $request ) {
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$user_id = $request->get_param( 'user_id' );
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$user = User_Collection::get_by_various( $user_id );
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if ( is_wp_error( $user ) ) {
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return $user;
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}
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$page = $request->get_param( 'page', 0 );
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/*
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* Action triggerd prior to the ActivityPub profile being created and sent to the client
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*/
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\do_action( 'activitypub_rest_inbox_pre' );
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$json = new \stdClass();
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$json->{'@context'} = get_context();
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$json->id = get_rest_url_by_path( sprintf( 'users/%d/inbox', $user->get__id() ) );
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$json->generator = 'http://wordpress.org/?v=' . \get_bloginfo_rss( 'version' );
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$json->type = 'OrderedCollectionPage';
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$json->partOf = get_rest_url_by_path( sprintf( 'users/%d/inbox', $user->get__id() ) ); // phpcs:ignore
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$json->totalItems = 0; // phpcs:ignore
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$json->orderedItems = array(); // phpcs:ignore
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$json->first = $json->partOf; // phpcs:ignore
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// filter output
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$json = \apply_filters( 'activitypub_rest_inbox_array', $json );
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/*
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* Action triggerd after the ActivityPub profile has been created and sent to the client
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*/
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\do_action( 'activitypub_inbox_post' );
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$rest_response = new WP_REST_Response( $json, 200 );
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$rest_response->header( 'Content-Type', 'application/activity+json; charset=' . get_option( 'blog_charset' ) );
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return $rest_response;
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}
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/**
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* Handles user-inbox requests
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*
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* @param WP_REST_Request $request
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*
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* @return WP_REST_Response
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*/
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public static function user_inbox_post( $request ) {
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$user_id = $request->get_param( 'user_id' );
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$user = User_Collection::get_by_various( $user_id );
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if ( is_wp_error( $user ) ) {
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return $user;
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}
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$data = $request->get_json_params();
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$activity = Activity::init_from_array( $data );
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$type = $request->get_param( 'type' );
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$type = \strtolower( $type );
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\do_action( 'activitypub_inbox', $data, $user->get__id(), $type, $activity );
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\do_action( "activitypub_inbox_{$type}", $data, $user->get__id(), $activity );
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$rest_response = new WP_REST_Response( array(), 202 );
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$rest_response->header( 'Content-Type', 'application/activity+json; charset=' . get_option( 'blog_charset' ) );
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return $rest_response;
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}
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/**
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* The shared inbox
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*
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* @param WP_REST_Request $request
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*
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* @return WP_REST_Response
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*/
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public static function shared_inbox_post( $request ) {
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$data = $request->get_json_params();
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$activity = Activity::init_from_array( $data );
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$type = $request->get_param( 'type' );
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$users = self::get_recipients( $data );
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if ( ! $users ) {
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return new WP_Error(
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'rest_invalid_param',
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\__( 'No recipients found', 'activitypub' ),
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array(
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'status' => 400,
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'params' => array(
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'to' => \__( 'Please check/validate "to" field', 'activitypub' ),
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'bto' => \__( 'Please check/validate "bto" field', 'activitypub' ),
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'cc' => \__( 'Please check/validate "cc" field', 'activitypub' ),
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'bcc' => \__( 'Please check/validate "bcc" field', 'activitypub' ),
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'audience' => \__( 'Please check/validate "audience" field', 'activitypub' ),
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),
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)
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);
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}
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foreach ( $users as $user ) {
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$user = User_Collection::get_by_various( $user );
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if ( is_wp_error( $user ) ) {
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continue;
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}
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$type = \strtolower( $type );
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\do_action( 'activitypub_inbox', $data, $user->ID, $type, $activity );
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\do_action( "activitypub_inbox_{$type}", $data, $user->ID, $activity );
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}
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$rest_response = new WP_REST_Response( array(), 202 );
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$rest_response->header( 'Content-Type', 'application/activity+json; charset=' . get_option( 'blog_charset' ) );
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return $rest_response;
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}
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/**
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* The supported parameters
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*
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* @return array list of parameters
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*/
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public static function user_inbox_get_parameters() {
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$params = array();
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$params['page'] = array(
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'type' => 'integer',
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);
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$params['user_id'] = array(
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'required' => true,
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'type' => 'string',
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);
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return $params;
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}
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/**
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* The supported parameters
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*
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* @return array list of parameters
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*/
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public static function user_inbox_post_parameters() {
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$params = array();
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$params['page'] = array(
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'type' => 'integer',
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);
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$params['user_id'] = array(
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'required' => true,
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'type' => 'string',
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);
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$params['id'] = array(
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'required' => true,
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'sanitize_callback' => 'esc_url_raw',
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);
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$params['actor'] = array(
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'required' => true,
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'sanitize_callback' => function( $param, $request, $key ) {
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if ( ! \is_string( $param ) ) {
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$param = $param['id'];
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}
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return \esc_url_raw( $param );
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},
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);
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$params['type'] = array(
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'required' => true,
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//'type' => 'enum',
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//'enum' => array( 'Create' ),
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//'sanitize_callback' => function( $param, $request, $key ) {
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// return \strtolower( $param );
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//},
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);
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$params['object'] = array(
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'required' => true,
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);
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return $params;
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}
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/**
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* The supported parameters
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*
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* @return array list of parameters
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*/
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public static function shared_inbox_post_parameters() {
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$params = array();
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$params['page'] = array(
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'type' => 'integer',
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);
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$params['id'] = array(
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'required' => true,
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'type' => 'string',
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'sanitize_callback' => 'esc_url_raw',
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);
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$params['actor'] = array(
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'required' => true,
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//'type' => array( 'object', 'string' ),
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'sanitize_callback' => function( $param, $request, $key ) {
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if ( ! \is_string( $param ) ) {
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$param = $param['id'];
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}
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return \esc_url_raw( $param );
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},
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);
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$params['type'] = array(
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'required' => true,
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//'type' => 'enum',
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//'enum' => array( 'Create' ),
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//'sanitize_callback' => function( $param, $request, $key ) {
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// return \strtolower( $param );
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//},
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);
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$params['object'] = array(
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'required' => true,
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//'type' => 'object',
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);
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$params['to'] = array(
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'required' => false,
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'sanitize_callback' => function( $param, $request, $key ) {
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if ( \is_string( $param ) ) {
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$param = array( $param );
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}
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return $param;
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},
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);
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$params['cc'] = array(
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'sanitize_callback' => function( $param, $request, $key ) {
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if ( \is_string( $param ) ) {
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$param = array( $param );
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}
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return $param;
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},
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);
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$params['bcc'] = array(
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'sanitize_callback' => function( $param, $request, $key ) {
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if ( \is_string( $param ) ) {
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$param = array( $param );
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}
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return $param;
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},
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);
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return $params;
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}
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/**
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* Get local user recipients
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*
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* @param array $data
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*
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* @return array The list of local users
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*/
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public static function get_recipients( $data ) {
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$recipients = extract_recipients_from_activity( $data );
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$users = array();
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foreach ( $recipients as $recipient ) {
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$user_id = url_to_authorid( $recipient );
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$user = get_user_by( 'id', $user_id );
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if ( $user ) {
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$users[] = $user;
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}
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}
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return $users;
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}
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}
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