activitypub / includes / rest / class-outbox.php

class-outbox.php in ActivityPub 1.0.0, at includes/rest/class-outbox.php

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1	<?php
2	namespace Activitypub\Rest;
3
4	use stdClass;
5	use WP_Error;
6	use WP_REST_Server;
7	use WP_REST_Response;
8	use Activitypub\Transformer\Post;
9	use Activitypub\Activity\Activity;
10	use Activitypub\Collection\Users as User_Collection;
11
12	use function Activitypub\get_context;
13	use function Activitypub\get_rest_url_by_path;
14
15	/**
16	* ActivityPub Outbox REST-Class
17	*
18	* @author Matthias Pfefferle
19	*
20	* @see https://www.w3.org/TR/activitypub/#outbox
21	*/
22	class Outbox {
23	/**
24	* Initialize the class, registering WordPress hooks
25	*/
26	public static function init() {
27	\add_action( 'rest_api_init', array( self::class, 'register_routes' ) );
28	}
29
30	/**
31	* Register routes
32	*/
33	public static function register_routes() {
34	\register_rest_route(
35	ACTIVITYPUB_REST_NAMESPACE,
36	'/users/(?P<user_id>[\w\-\.]+)/outbox',
37	array(
38	array(
39	'methods' => WP_REST_Server::READABLE,
40	'callback' => array( self::class, 'user_outbox_get' ),
41	'args' => self::request_parameters(),
42	'permission_callback' => '__return_true',
43	),
44	)
45	);
46	}
47
48	/**
49	* Renders the user-outbox
50	*
51	* @param WP_REST_Request $request
52	* @return WP_REST_Response
53	*/
54	public static function user_outbox_get( $request ) {
55	$user_id = $request->get_param( 'user_id' );
56	$user = User_Collection::get_by_various( $user_id );
57
58	if ( is_wp_error( $user ) ) {
59	return $user;
60	}
61
62	$post_types = \get_option( 'activitypub_support_post_types', array( 'post', 'page' ) );
63
64	$page = $request->get_param( 'page', 1 );
65
66	/*
67	* Action triggerd prior to the ActivityPub profile being created and sent to the client
68	*/
69	\do_action( 'activitypub_rest_outbox_pre' );
70
71	$json = new stdClass();
72
73	$json->{'@context'} = get_context();
74	$json->id = get_rest_url_by_path( sprintf( 'users/%d/outbox', $user_id ) );
75	$json->generator = 'http://wordpress.org/?v=' . \get_bloginfo_rss( 'version' );
76	$json->actor = $user->get_id();
77	$json->type = 'OrderedCollectionPage';
78	$json->partOf = get_rest_url_by_path( sprintf( 'users/%d/outbox', $user_id ) ); // phpcs:ignore
79	$json->totalItems = 0; // phpcs:ignore
80
81	foreach ( $post_types as $post_type ) {
82	$count_posts = \wp_count_posts( $post_type );
83	$json->totalItems += \intval( $count_posts->publish ); // phpcs:ignore
84	}
85
86	$json->first = \add_query_arg( 'page', 1, $json->partOf ); // phpcs:ignore
87	$json->last = \add_query_arg( 'page', \ceil ( $json->totalItems / 10 ), $json->partOf ); // phpcs:ignore
88
89	if ( $page && ( ( \ceil ( $json->totalItems / 10 ) ) > $page ) ) { // phpcs:ignore
90	$json->next = \add_query_arg( 'page', $page + 1, $json->partOf ); // phpcs:ignore
91	}
92
93	if ( $page && ( $page > 1 ) ) { // phpcs:ignore
94	$json->prev = \add_query_arg( 'page', $page - 1, $json->partOf ); // phpcs:ignore
95	}
96
97	if ( $page ) {
98	$posts = \get_posts(
99	array(
100	'posts_per_page' => 10,
101	'author' => $user_id,
102	'paged' => $page,
103	'post_type' => $post_types,
104	)
105	);
106
107	foreach ( $posts as $post ) {
108	$post = Post::transform( $post )->to_object();
109	$activity = new Activity();
110	$activity->set_type( 'Create' );
111	$activity->set_context( null );
112	$activity->set_object( $post );
113
114	$json->orderedItems[] = $activity->to_array(); // phpcs:ignore
115	}
116	}
117
118	// filter output
119	$json = \apply_filters( 'activitypub_rest_outbox_array', $json );
120
121	/*
122	* Action triggerd after the ActivityPub profile has been created and sent to the client
123	*/
124	\do_action( 'activitypub_outbox_post' );
125
126	$response = new WP_REST_Response( $json, 200 );
127
128	$response->header( 'Content-Type', 'application/activity+json' );
129
130	return $response;
131	}
132
133	/**
134	* The supported parameters
135	*
136	* @return array list of parameters
137	*/
138	public static function request_parameters() {
139	$params = array();
140
141	$params['page'] = array(
142	'type' => 'integer',
143	'default' => 1,
144	);
145
146	$params['user_id'] = array(
147	'required' => true,
148	'type' => 'string',
149	);
150
151	return $params;
152	}
153	}
154