wordpress-activitypub/includes/class-activity-dispatcher.php

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<?php
namespace Activitypub;
/**
* ActivityPub Activity_Dispatcher Class
*
* @author Matthias Pfefferle
*
* @see https://www.w3.org/TR/activitypub/
*/
class Activity_Dispatcher {
/**
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* Initialize the class, registering WordPress hooks.
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*/
public static function init() {
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// legacy
\add_action( 'activitypub_send_post_activity', array( '\Activitypub\Activity_Dispatcher', 'send_create_activity' ) );
\add_action( 'activitypub_send_create_activity', array( '\Activitypub\Activity_Dispatcher', 'send_create_activity' ) );
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\add_action( 'activitypub_send_update_activity', array( '\Activitypub\Activity_Dispatcher', 'send_update_activity' ) );
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\add_action( 'activitypub_send_delete_activity', array( '\Activitypub\Activity_Dispatcher', 'send_delete_activity' ) );
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}
/**
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* Send "create" activities.
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*
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* @param \Activitypub\Model\Post $activitypub_post
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*/
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public static function send_create_activity( Model\Post $activitypub_post ) {
self::send_activity( $activitypub_post, 'Create' );
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}
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/**
* Send "update" activities.
*
* @param \Activitypub\Model\Post $activitypub_post
*/
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public static function send_update_activity( Model\Post $activitypub_post ) {
self::send_activity( $activitypub_post, 'Update' );
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}
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/**
* Send "delete" activities.
*
* @param \Activitypub\Model\Post $activitypub_post
*/
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public static function send_delete_activity( Model\Post $activitypub_post ) {
self::send_activity( $activitypub_post, 'Delete' );
}
/**
* Undocumented function
*
* @param [type] $activitypub_post
* @param [type] $activity_type
* @return void
*/
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public static function send_activity( Model\Post $activitypub_post, $activity_type ) {
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// get latest version of post
$user_id = $activitypub_post->get_post_author();
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$activitypub_activity = new \Activitypub\Model\Activity( $activity_type, \Activitypub\Model\Activity::TYPE_FULL );
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$activitypub_activity->from_post( $activitypub_post );
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$inboxes = \Activitypub\get_follower_inboxes( $user_id, $activitypub_activity->get_cc() );
foreach ( $inboxes as $inbox => $cc ) {
$cc = array_values( array_unique( $cc ) );
$activitypub_activity->add_cc( $cc );
$activity = $activitypub_activity->to_json();
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\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
}
}
}