337 lines
12 KiB
PHP
337 lines
12 KiB
PHP
<?php
|
|
namespace Activitypub;
|
|
|
|
/**
|
|
* ActivityPub Activity_Dispatcher Class
|
|
*
|
|
* @author Matthias Pfefferle
|
|
*
|
|
* @see https://www.w3.org/TR/activitypub/
|
|
*/
|
|
class Activity_Dispatcher {
|
|
/**
|
|
* Initialize the class, registering WordPress hooks.
|
|
*/
|
|
public static function init() {
|
|
\add_action( 'activitypub_send_post_activity', array( '\Activitypub\Activity_Dispatcher', 'send_post_activity' ) );
|
|
\add_action( 'activitypub_send_announce_activity', array( '\Activitypub\Activity_Dispatcher', 'send_announce_activity' ), 10, 2 );
|
|
\add_action( 'activitypub_send_update_activity', array( '\Activitypub\Activity_Dispatcher', 'send_update_activity' ) );
|
|
\add_action( 'activitypub_send_delete_activity', array( '\Activitypub\Activity_Dispatcher', 'send_delete_activity' ) );
|
|
\add_action( 'activitypub_send_delete_url_activity', array( '\Activitypub\Activity_Dispatcher', 'send_delete_url_activity' ), 10, 2 );
|
|
|
|
\add_action( 'activitypub_send_comment_activity', array( '\Activitypub\Activity_Dispatcher', 'send_comment_activity' ) );
|
|
\add_action( 'activitypub_send_update_comment_activity', array( '\Activitypub\Activity_Dispatcher', 'send_update_comment_activity' ) );
|
|
\add_action( 'activitypub_inbox_forward_activity', array( '\Activitypub\Activity_Dispatcher', 'inbox_forward_activity' ) );
|
|
\add_action( 'activitypub_send_delete_comment_activity', array( '\Activitypub\Activity_Dispatcher', 'send_delete_comment_activity' ) );
|
|
}
|
|
|
|
/**
|
|
* Send "create" activities.
|
|
*
|
|
* @param \Activitypub\Model\Post $activitypub_post
|
|
*/
|
|
public static function send_post_activity( Model\Post $activitypub_post ) {
|
|
// get latest version of post
|
|
$user_id = $activitypub_post->get_post_author();
|
|
|
|
$activitypub_activity = new \Activitypub\Model\Activity( 'Create', \Activitypub\Model\Activity::TYPE_FULL );
|
|
$activitypub_activity->from_post( $activitypub_post );
|
|
|
|
$inboxes = \Activitypub\get_follower_inboxes( $user_id );
|
|
|
|
$followers_url = \get_rest_url( null, '/activitypub/1.0/users/' . intval( $user_id ) . '/followers' );
|
|
foreach ( $activitypub_activity->get_cc() as $cc ) {
|
|
if ( $cc === $followers_url ) {
|
|
continue;
|
|
}
|
|
$inbox = \Activitypub\get_inbox_by_actor( $cc );
|
|
if ( ! $inbox || \is_wp_error( $inbox ) ) {
|
|
continue;
|
|
}
|
|
// init array if empty
|
|
if ( ! isset( $inboxes[ $inbox ] ) ) {
|
|
$inboxes[ $inbox ] = array();
|
|
}
|
|
$inboxes[ $inbox ][] = $cc;
|
|
}
|
|
|
|
foreach ( $inboxes as $inbox => $to ) {
|
|
$to = array_values( array_unique( $to ) );
|
|
$activitypub_activity->set_to( $to );
|
|
$activity = $activitypub_activity->to_json();
|
|
|
|
\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send "announce" activities.
|
|
*
|
|
* @param str $activitypub_url (ActivityPub object ID)
|
|
* @param absint $user_id
|
|
*/
|
|
public static function send_announce_activity( $activitypub_url, $user_id ) {
|
|
// get latest version of post
|
|
$time = \current_datetime()->format( DATE_ISO8601 );
|
|
$post = \get_post( \url_to_postid( $activitypub_url ) );
|
|
|
|
$activitypub_announce = new \Activitypub\Model\Activity( 'Announce', \Activitypub\Model\Activity::TYPE_SIMPLE );
|
|
$activitypub_announce->set_published( $time );
|
|
|
|
if ( $post ) {
|
|
$activitypub_id = $post->guid;
|
|
$activitypub_post = new \Activitypub\Model\Post( $post );
|
|
$activitypub_announce->from_post( $activitypub_post->to_array() );
|
|
} else {
|
|
$activitypub_id = $activitypub_url;
|
|
$activitypub_announce->set_object( $activitypub_id );
|
|
}
|
|
$activitypub_announce->set_id( add_query_arg( 'activity', 'announce', $activitypub_id ) );
|
|
$activitypub_announce->set_actor( \get_author_posts_url( $user_id ) );
|
|
|
|
foreach ( \Activitypub\get_follower_inboxes( $user_id ) as $inbox => $to ) {
|
|
$activitypub_announce->set_to( $to );
|
|
$activity = $activitypub_announce->to_json(); // phpcs:ignore
|
|
\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send "update" activities.
|
|
*
|
|
* @param \Activitypub\Model\Post $activitypub_post
|
|
*/
|
|
public static function send_update_activity( $activitypub_post ) {
|
|
// get latest version of post
|
|
$user_id = $activitypub_post->get_post_author();
|
|
$updated = \wp_date( 'Y-m-d\TH:i:s\Z', \strtotime( $activitypub_post->get_updated() ) );
|
|
|
|
$activitypub_activity = new \Activitypub\Model\Activity( 'Update', \Activitypub\Model\Activity::TYPE_FULL );
|
|
$activitypub_activity->from_post( $activitypub_post );
|
|
|
|
foreach ( \Activitypub\get_follower_inboxes( $user_id ) as $inbox => $to ) {
|
|
$activitypub_activity->set_to( $to );
|
|
$activity = $activitypub_activity->to_json(); // phpcs:ignore
|
|
|
|
\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send "delete" activities.
|
|
*
|
|
* @param \Activitypub\Model\Post $activitypub_post
|
|
*/
|
|
public static function send_delete_activity( $activitypub_post ) {
|
|
// get latest version of post
|
|
$user_id = $activitypub_post->get_post_author();
|
|
|
|
$activitypub_activity = new \Activitypub\Model\Activity( 'Delete', \Activitypub\Model\Activity::TYPE_FULL );
|
|
$activitypub_activity->from_post( $activitypub_post );
|
|
|
|
foreach ( \Activitypub\get_follower_inboxes( $user_id ) as $inbox => $to ) {
|
|
$activitypub_activity->set_to( $to );
|
|
$activity = $activitypub_activity->to_json(); // phpcs:ignore
|
|
|
|
\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send "delete" activities.
|
|
*
|
|
* @param str $activitypub_url
|
|
* @param int $user_id
|
|
*/
|
|
public static function send_delete_url_activity( $activitypub_url, $user_id ) {
|
|
// get latest version of post
|
|
$actor = \get_author_posts_url( $user_id );
|
|
$deleted = \current_time( 'Y-m-d\TH:i:s\Z', true );
|
|
|
|
$activitypub_activity = new \Activitypub\Model\Activity( 'Delete', \Activitypub\Model\Activity::TYPE_SIMPLE );
|
|
$activitypub_activity->set_id( $activitypub_url . '#delete' );
|
|
$activitypub_activity->set_actor( $actor );
|
|
$activitypub_activity->set_object(
|
|
array(
|
|
'id' => $activitypub_url,
|
|
'type' => 'Tombstone',
|
|
)
|
|
);
|
|
$activitypub_activity->set_deleted( $deleted );
|
|
|
|
foreach ( \Activitypub\get_follower_inboxes( $user_id ) as $inbox => $to ) {
|
|
$activitypub_activity->set_to( $to );
|
|
$activity = $activitypub_activity->to_json(); // phpcs:ignore
|
|
\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send "create" activities for comments
|
|
*
|
|
* @param \Activitypub\Model\Comment $activitypub_comment
|
|
*/
|
|
public static function send_comment_activity( $activitypub_comment_id ) {
|
|
//ONLY FOR LOCAL USERS ?
|
|
$activitypub_comment = \get_comment( $activitypub_comment_id );
|
|
$user_id = $activitypub_comment->user_id;
|
|
$activitypub_comment = new \Activitypub\Model\Comment( $activitypub_comment );
|
|
$activitypub_activity = new \Activitypub\Model\Activity( 'Create', \Activitypub\Model\Activity::TYPE_FULL );
|
|
$activitypub_activity->from_comment( $activitypub_comment->to_array() );
|
|
|
|
$inboxes = \Activitypub\get_follower_inboxes( $user_id );
|
|
|
|
$followers_url = \get_rest_url( null, '/activitypub/1.0/users/' . intval( $user_id ) . '/followers' );
|
|
foreach ( $activitypub_activity->get_cc() as $cc ) {
|
|
if ( $cc === $followers_url ) {
|
|
continue;
|
|
}
|
|
$inbox = \Activitypub\get_inbox_by_actor( $cc );
|
|
if ( ! $inbox || \is_wp_error( $inbox ) ) {
|
|
continue;
|
|
}
|
|
// init array if empty
|
|
if ( ! isset( $inboxes[ $inbox ] ) ) {
|
|
$inboxes[ $inbox ] = array();
|
|
}
|
|
$inboxes[ $inbox ][] = $cc;
|
|
}
|
|
|
|
foreach ( $inboxes as $inbox => $to ) {
|
|
$to = array_values( array_unique( $to ) );
|
|
$activitypub_activity->set_to( $to );
|
|
$activity = $activitypub_activity->to_json();
|
|
\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Forward replies to followers
|
|
*
|
|
* @param \Activitypub\Model\Comment $activitypub_comment
|
|
*/
|
|
public static function inbox_forward_activity( $activitypub_comment_id ) {
|
|
$activitypub_comment = \get_comment( $activitypub_comment_id );
|
|
|
|
//original author should NOT recieve a copy of their own post
|
|
$replyto[] = $activitypub_comment->comment_author_url;
|
|
$activitypub_activity = \unserialize( get_comment_meta( $activitypub_comment->comment_ID, 'ap_object', true ) );
|
|
|
|
//will be forwarded to the parent_comment->author or post_author followers collection
|
|
$parent_comment = \get_comment( $activitypub_comment->comment_parent );
|
|
if ( ! is_null( $parent_comment ) ) {
|
|
$user_id = $parent_comment->user_id;
|
|
} else {
|
|
$original_post = \get_post( $activitypub_comment->comment_post_ID );
|
|
$user_id = $original_post->post_author;
|
|
}
|
|
|
|
unset( $activitypub_activity['user_id'] ); // remove user_id from $activitypub_comment
|
|
|
|
foreach ( \Activitypub\get_follower_inboxes( $user_id ) as $inbox => $cc ) {
|
|
//Forward reply to followers, skip sender
|
|
if ( in_array( $cc, $replyto ) ) {
|
|
continue;
|
|
}
|
|
|
|
$activitypub_activity['object']['cc'] = $cc;
|
|
$activitypub_activity['cc'] = $cc;
|
|
|
|
$activity = \wp_json_encode( $activitypub_activity, JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_QUOT );
|
|
\Activitypub\forward_remote_post( $inbox, $activity, $user_id );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send "update" activities.
|
|
*
|
|
* @param \Activitypub\Model\Comment $activitypub_comment
|
|
*/
|
|
public static function send_update_comment_activity( $activitypub_comment_id ) {
|
|
$activitypub_comment = \get_comment( $activitypub_comment_id );
|
|
$updated = \get_comment_meta( $activitypub_comment_id, 'ap_last_modified', true );
|
|
|
|
$user_id = $activitypub_comment->user_id;
|
|
if ( ! $user_id ) { // Prevent sending received/anonymous comments.
|
|
return;
|
|
}
|
|
$activitypub_comment = new \Activitypub\Model\Comment( $activitypub_comment );
|
|
$activitypub_comment->set_update( $updated );
|
|
$activitypub_activity = new \Activitypub\Model\Activity( 'Update', \Activitypub\Model\Activity::TYPE_FULL );
|
|
$activitypub_activity->from_comment( $activitypub_comment->to_array() );
|
|
$activitypub_activity->set_update( $updated );
|
|
|
|
$inboxes = \Activitypub\get_follower_inboxes( $user_id );
|
|
$followers_url = \get_rest_url( null, '/activitypub/1.0/users/' . intval( $user_id ) . '/followers' );
|
|
|
|
foreach ( $activitypub_activity->get_cc() as $cc ) {
|
|
if ( $cc === $followers_url ) {
|
|
continue;
|
|
}
|
|
$inbox = \Activitypub\get_inbox_by_actor( $cc );
|
|
if ( ! $inbox || \is_wp_error( $inbox ) ) {
|
|
continue;
|
|
}
|
|
// init array if empty
|
|
if ( ! isset( $inboxes[ $inbox ] ) ) {
|
|
$inboxes[ $inbox ] = array();
|
|
}
|
|
$inboxes[ $inbox ][] = $cc;
|
|
}
|
|
|
|
foreach ( $inboxes as $inbox => $to ) {
|
|
$to = array_values( array_unique( $to ) );
|
|
$activitypub_activity->set_to( $to );
|
|
$activity = $activitypub_activity->to_json();
|
|
\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send "delete" activities.
|
|
*
|
|
* @param \Activitypub\Model\Comment $activitypub_comment
|
|
*/
|
|
public static function send_delete_comment_activity( $activitypub_comment_id ) {
|
|
// get comment
|
|
$activitypub_comment = \get_comment( $activitypub_comment_id );
|
|
$user_id = $activitypub_comment->user_id;
|
|
// Prevent sending received/anonymous comments
|
|
if ( ! $user_id ) {
|
|
return;
|
|
}
|
|
|
|
$deleted = \wp_date( 'Y-m-d\TH:i:s\Z', \strtotime( $activitypub_comment->comment_date_gmt ) );
|
|
|
|
$activitypub_comment = new \Activitypub\Model\Comment( $activitypub_comment );
|
|
$activitypub_comment->set_deleted( $deleted );
|
|
$activitypub_activity = new \Activitypub\Model\Activity( 'Delete', \Activitypub\Model\Activity::TYPE_FULL );
|
|
$activitypub_activity->from_comment( $activitypub_comment->to_array() );
|
|
$activitypub_activity->set_deleted( $deleted );
|
|
|
|
$inboxes = \Activitypub\get_follower_inboxes( $user_id );
|
|
$followers_url = \get_rest_url( null, '/activitypub/1.0/users/' . intval( $user_id ) . '/followers' );
|
|
|
|
foreach ( $activitypub_activity->get_cc() as $cc ) {
|
|
if ( $cc === $followers_url ) {
|
|
continue;
|
|
}
|
|
$inbox = \Activitypub\get_inbox_by_actor( $cc );
|
|
if ( ! $inbox || \is_wp_error( $inbox ) ) {
|
|
continue;
|
|
}
|
|
// init array if empty
|
|
if ( ! isset( $inboxes[ $inbox ] ) ) {
|
|
$inboxes[ $inbox ] = array();
|
|
}
|
|
$inboxes[ $inbox ][] = $cc;
|
|
}
|
|
|
|
foreach ( $inboxes as $inbox => $to ) {
|
|
$to = array_values( array_unique( $to ) );
|
|
$activitypub_activity->set_to( $to );
|
|
$activity = $activitypub_activity->to_json();
|
|
\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
|
|
}
|
|
}
|
|
}
|