wordpress-activitypub/includes/class-scheduler.php

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<?php
namespace Activitypub;
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use Activitypub\Collection\Users;
use Activitypub\Collection\Followers;
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use Activitypub\Transformer\Post;
use function Activitypub\is_user_type_disabled;
/**
* ActivityPub Scheduler Class
*
* @author Matthias Pfefferle
*/
class Scheduler {
/**
* Initialize the class, registering WordPress hooks
*/
public static function init() {
\add_action( 'transition_post_status', array( self::class, 'schedule_post_activity' ), 33, 3 );
\add_action( 'activitypub_update_followers', array( self::class, 'update_followers' ) );
\add_action( 'activitypub_cleanup_followers', array( self::class, 'cleanup_followers' ) );
\add_action( 'admin_init', array( self::class, 'schedule_migration' ) );
// profile updates for blog options
if ( ! is_user_type_disabled( 'blog' ) ) {
\add_action( 'update_option_site_icon', array( self::class, 'blog_user_update' ) );
\add_action( 'update_option_blogdescription', array( self::class, 'blog_user_update' ) );
\add_action( 'update_option_blogname', array( self::class, 'blog_user_update' ) );
\add_filter( 'pre_set_theme_mod_custom_logo', array( self::class, 'blog_user_update' ) );
\add_filter( 'pre_set_theme_mod_header_image', array( self::class, 'blog_user_update' ) );
}
// profile updates for user options
if ( ! is_user_type_disabled( 'user' ) ) {
\add_action( 'updated_user_meta', array( self::class, 'user_update' ), 10, 3 );
// @todo figure out a feasible way of updating the header image since it's not unique to any user.
}
}
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/**
* Schedule all ActivityPub schedules.
*
* @return void
*/
public static function register_schedules() {
if ( ! \wp_next_scheduled( 'activitypub_update_followers' ) ) {
\wp_schedule_event( time(), 'hourly', 'activitypub_update_followers' );
}
if ( ! \wp_next_scheduled( 'activitypub_cleanup_followers' ) ) {
\wp_schedule_event( time(), 'daily', 'activitypub_cleanup_followers' );
}
}
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/**
* Unscedule all ActivityPub schedules.
*
* @return void
*/
public static function deregister_schedules() {
wp_unschedule_hook( 'activitypub_update_followers' );
wp_unschedule_hook( 'activitypub_cleanup_followers' );
}
/**
* Schedule Activities.
*
* @param string $new_status New post status.
* @param string $old_status Old post status.
* @param WP_Post $post Post object.
*/
public static function schedule_post_activity( $new_status, $old_status, $post ) {
// Do not send activities if post is password protected.
if ( \post_password_required( $post ) ) {
return;
}
// Check if post-type supports ActivityPub.
$post_types = \get_post_types_by_support( 'activitypub' );
if ( ! \in_array( $post->post_type, $post_types, true ) ) {
return;
}
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$type = false;
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if ( 'publish' === $new_status && 'publish' !== $old_status ) {
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$type = 'Create';
} elseif ( 'publish' === $new_status ) {
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$type = 'Update';
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} elseif ( 'trash' === $new_status ) {
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$type = 'Delete';
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}
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if ( ! $type ) {
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return;
}
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\wp_schedule_single_event(
\time(),
'activitypub_send_activity',
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array( $post, $type )
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);
\wp_schedule_single_event(
\time(),
sprintf(
'activitypub_send_%s_activity',
\strtolower( $type )
),
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array( $post )
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);
}
/**
* Update followers
*
* @return void
*/
public static function update_followers() {
$number = 5;
if ( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON ) {
$number = 50;
}
$followers = Followers::get_outdated_followers( $number );
foreach ( $followers as $follower ) {
$meta = get_remote_metadata_by_actor( $follower->get_url(), false );
if ( empty( $meta ) || ! is_array( $meta ) || is_wp_error( $meta ) ) {
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Followers::add_error( $follower->get__id(), $meta );
} else {
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$follower->from_array( $meta );
$follower->update();
}
}
}
/**
* Cleanup followers
*
* @return void
*/
public static function cleanup_followers() {
$number = 5;
if ( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON ) {
$number = 50;
}
$followers = Followers::get_faulty_followers( $number );
foreach ( $followers as $follower ) {
$meta = get_remote_metadata_by_actor( $follower->get_url(), false );
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if ( is_tombstone( $meta ) ) {
$follower->delete();
} elseif ( empty( $meta ) || ! is_array( $meta ) || is_wp_error( $meta ) ) {
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if ( $follower->count_errors() >= 5 ) {
$follower->delete();
} else {
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Followers::add_error( $follower->get__id(), $meta );
}
} else {
$follower->reset_errors();
}
}
}
/**
* Schedule migration if DB-Version is not up to date.
*
* @return void
*/
public static function schedule_migration() {
if ( ! \wp_next_scheduled( 'activitypub_schedule_migration' ) && ! Migration::is_latest_version() ) {
\wp_schedule_single_event( \time(), 'activitypub_schedule_migration' );
}
}
/**
* Send a profile update when relevant user meta is updated.
*
* @param int $meta_id Meta ID being updated.
* @param int $user_id User ID being updated.
* @param string $meta_key Meta key being updated.
* @return void
*/
public static function user_update( $meta_id, $user_id, $meta_key ) {
// don't bother if the user can't publish
if ( ! \user_can( $user_id, 'publish_posts' ) ) {
return;
}
// the user meta fields that affect a profile.
$fields = array(
'activitypub_user_description',
'description',
'user_url',
'display_name',
);
if ( in_array( $meta_key, $fields, true ) ) {
self::schedule_profile_update( $user_id );
}
}
/**
* Theme mods only have a dynamic filter so we fudge it like this.
* @param mixed $value
* @return mixed
*/
public static function blog_user_update( $value = null ) {
self::schedule_profile_update( 0 );
return $value;
}
/**
* Send a profile update to all followers. Gets hooked into all relevant options/meta etc.
* @param int $user_id The user ID to update (Could be 0 for Blog-User).
*/
public function schedule_profile_update( $user_id ) {
\wp_schedule_single_event(
\time(),
'activitypub_send_update_profile_activity',
array( $user_id )
);
}
}