activitypub / includes / handler / class-create.php

class-create.php in ActivityPub 7.0.1, at includes/handler/class-create.php

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1	<?php
2	/**
3	* Create handler file.
4	*
5	* @package Activitypub
6	*/
7
8	namespace Activitypub\Handler;
9
10	use Activitypub\Collection\Interactions;
11
12	use function Activitypub\is_self_ping;
13	use function Activitypub\is_activity_reply;
14	use function Activitypub\is_activity_public;
15	use function Activitypub\object_id_to_comment;
16
17	/**
18	* Handle Create requests.
19	*/
20	class Create {
21	/**
22	* Initialize the class, registering WordPress hooks.
23	*/
24	public static function init() {
25	\add_action(
26	'activitypub_inbox_create',
27	array( self::class, 'handle_create' ),
28	10,
29	3
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 "Create" requests.
42	*
43	* @param array $activity The activity-object.
44	* @param int $user_id The id of the local blog-user.
45	* @param \Activitypub\Activity\Activity $activity_object Optional. The activity object. Default null.
46	*/
47	public static function handle_create( $activity, $user_id, $activity_object = null ) {
48	// Check if Activity is public or not.
49	if (
50	! is_activity_public( $activity ) \|\|
51	! is_activity_reply( $activity )
52	) {
53	return;
54	}
55
56	$check_dupe = object_id_to_comment( $activity['object']['id'] );
57
58	// If comment exists, call update action.
59	if ( $check_dupe ) {
60	/**
61	* Fires when a Create activity is received for an existing comment.
62	*
63	* @param array $activity The activity-object.
64	* @param int $user_id The id of the local blog-user.
65	* @param \Activitypub\Activity\Activity $activity_object The activity object.
66	*/
67	\do_action( 'activitypub_inbox_update', $activity, $user_id, $activity_object );
68	return;
69	}
70
71	if ( is_self_ping( $activity['object']['id'] ) ) {
72	return;
73	}
74
75	$state = Interactions::add_comment( $activity );
76	$reaction = null;
77
78	if ( $state && ! \is_wp_error( $state ) ) {
79	$reaction = \get_comment( $state );
80	}
81
82	/**
83	* Fires after a Create activity has been handled.
84	*
85	* @param array $activity The activity-object.
86	* @param int $user_id The id of the local blog-user.
87	* @param \WP_Comment\|\WP_Error $state The comment object or WP_Error.
88	* @param \WP_Comment\|\WP_Error\|null $reaction The reaction object or WP_Error.
89	*/
90	\do_action( 'activitypub_handled_create', $activity, $user_id, $state, $reaction );
91	}
92
93	/**
94	* Validate the object.
95	*
96	* @param bool $valid The validation state.
97	* @param string $param The object parameter.
98	* @param \WP_REST_Request $request The request object.
99	*
100	* @return bool The validation state: true if valid, false if not.
101	*/
102	public static function validate_object( $valid, $param, $request ) {
103	$json_params = $request->get_json_params();
104
105	if ( empty( $json_params['type'] ) ) {
106	return false;
107	}
108
109	if (
110	'Create' !== $json_params['type'] \|\|
111	is_wp_error( $request )
112	) {
113	return $valid;
114	}
115
116	$object = $json_params['object'];
117
118	if ( ! is_array( $object ) ) {
119	return false;
120	}
121
122	$required = array(
123	'id',
124	'content',
125	);
126
127	if ( array_intersect( $required, array_keys( $object ) ) !== $required ) {
128	return false;
129	}
130
131	return $valid;
132	}
133	}
134