activitypub / includes / handler / class-reject.php

class-reject.php in ActivityPub 7.0.0, at includes/handler/class-reject.php

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1	<?php
2	/**
3	* Reject handler file.
4	*
5	* @package Activitypub
6	*/
7
8	namespace Activitypub\Handler;
9
10	use Activitypub\Notification;
11	use Activitypub\Collection\Actors;
12	use Activitypub\Collection\Following;
13	use Activitypub\Collection\Outbox;
14
15	use function Activitypub\object_to_uri;
16
17	/**
18	* Handle "Reject" requests.
19	*/
20	class Reject {
21	/**
22	* Initialize the class, registering WordPress hooks.
23	*/
24	public static function init() {
25	\add_action(
26	'activitypub_inbox_reject',
27	array( self::class, 'handle_reject' ),
28	10,
29	2
30	);
31
32	\add_filter(
33	'activitypub_validate_object',
34	array( self::class, 'validate_object' ),
35	10,
36	3
37	);
38	}
39
40	/**
41	* Handles "Reject" requests.
42	*
43	* @param array $reject The activity-object.
44	* @param int $user_id The id of the local blog-user.
45	*/
46	public static function handle_reject( $reject, $user_id ) {
47	// Validate that there is a preceding Activity.
48	$outbox_post = Outbox::get_by_guid( $reject['object']['id'] );
49
50	if ( \is_wp_error( $outbox_post ) ) {
51	return;
52	}
53
54	// We currently only support reject for Follow activities. But we will support more in the future.
55	switch ( \get_post_meta( $outbox_post->ID, '_activitypub_activity_type', true ) ) {
56	case 'Follow':
57	self::reject_follow( $reject, $user_id );
58	break;
59	default:
60	break;
61	}
62	}
63
64	/**
65	* Reject a "Follow" request.
66	*
67	* @param array $reject The activity-object.
68	* @param int $user_id The id of the local blog-user.
69	*/
70	private static function reject_follow( $reject, $user_id ) {
71	$actor_uri = $reject['object']['actor'] ?? '';
72	$actor_post = Actors::get_remote_by_uri( object_to_uri( $actor_uri ) );
73
74	if ( \is_wp_error( $actor_post ) ) {
75	return;
76	}
77
78	Following::reject( $actor_post, $user_id );
79
80	// Send notification.
81	$notification = new Notification(
82	'reject',
83	$actor_post->guid,
84	$reject,
85	$user_id
86	);
87	$notification->send();
88	}
89
90	/**
91	* Validate the object.
92	*
93	* @param bool $valid The validation state.
94	* @param string $param The object parameter.
95	* @param \WP_REST_Request $request The request object.
96	*
97	* @return bool The validation state: true if valid, false if not.
98	*/
99	public static function validate_object( $valid, $param, $request ) {
100	$json_params = $request->get_json_params();
101
102	if ( empty( $json_params['type'] ) ) {
103	return false;
104	}
105
106	if (
107	'Reject' !== $json_params['type'] \|\|
108	\is_wp_error( $request )
109	) {
110	return $valid;
111	}
112
113	if ( empty( $json_params['actor'] ) \|\| empty( $json_params['object'] ) ) {
114	return false;
115	}
116
117	return $valid;
118	}
119	}
120