Event-Federation/wordpress-event-bridge-for-activitypub
Event-Federation/wordpress-event-bridge-for-activitypub
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Code Issues 24 Pull requests 6 Projects Releases 1 Packages Wiki Activity Actions

WIP: Add Event Sources Logic (ActivityPub follows) #86

Draft
linos wants to merge 36 commits from event_sources into main
pull from: event_sources
merge into: Event-Federation:main
Conversation 0 Commits 36 Files changed 61 +497 -178
13 changed files with 497 additions and 178 deletions
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Showing only changes of commit 076e2619f0 - Show all commits

13
assets/css/event-bridge-for-activitypub-admin.css
View file

@ -194,3 +194,16 @@ code.event-bridge-for-activitypub-settings-example-url {
.event_bridge_for_activitypub-admin-table-container {
padding-left: 22px;
}
.event_bridge_for_activitypub-admin-table-top > h2 {
display: inline-block;
font-size: 23px;
font-weight: 400;
margin: 0 10px 0 2px;
padding: 9px 0 4px;
line-height: 1.3;
}
.event_bridge_for_activitypub-admin-table-top > a {
display: inline-block;
}

2
event-bridge-for-activitypub.php
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@ -3,7 +3,7 @@
* Plugin Name: Event Bridge for ActivityPub
* Description: Integrating popular event plugins with the ActivityPub plugin.
* Plugin URI: https://event-federation.eu/
* Version: 0.3.2
* Version: 0.3.2.4
* Author: André Menrath
* Author URI: https://graz.social/@linos
* Text Domain: event-bridge-for-activitypub

2
includes/activitypub/class-handler.php
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@ -13,7 +13,6 @@ namespace Event_Bridge_For_ActivityPub\ActivityPub;
defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
use Event_Bridge_For_ActivityPub\ActivityPub\Handler\Accept;
use Event_Bridge_For_ActivityPub\ActivityPub\Handler\Announce;
use Event_Bridge_For_ActivityPub\ActivityPub\Handler\Update;
use Event_Bridge_For_ActivityPub\ActivityPub\Handler\Create;
use Event_Bridge_For_ActivityPub\ActivityPub\Handler\Delete;
@ -27,7 +26,6 @@ class Handler {
*/
public static function register_handlers() {
Accept::init();
Announce::init();
Update::init();
Create::init();
Delete::init();

115
includes/activitypub/collection/class-event-sources.php
View file

@ -34,8 +34,6 @@ class Event_Sources {
\add_action( 'event_bridge_for_activitypub_unfollow', array( self::class, 'activitypub_unfollow_actor' ), 10, 2 );
}
/**
* Register the post type used to store the external event sources (i.e., followed ActivityPub actors).
*/
@ -159,9 +157,22 @@ class Event_Sources {
self::queue_follow_actor( $actor );
self::delete_event_source_transients();
return $event_source;
}
/**
* Delete all transients related to the event sources.
*
* @return void
*/
public static function delete_event_source_transients(): void {
delete_transient( 'event_bridge_for_activitypub_event_sources' );
delete_transient( 'event_bridge_for_activitypub_event_sources_hosts' );
delete_transient( 'event_bridge_for_activitypub_event_sources_ids' );
}
/**
* Remove an Event Source (=Followed ActivityPub actor).
*
@ -171,39 +182,68 @@ class Event_Sources {
*/
public static function remove_event_source( $actor ) {
$actor = true;
self::delete_event_source_transients();
return $actor;
}
/**
* Get an array will all unique hosts of all Event-Sources.
*
* @return array The Term list of Event Sources.
*/
public static function get_event_sources_hosts() {
$hosts = get_transient( 'event_bridge_for_activitypub_event_sources_hosts' );
if ( $hosts ) {
return $hosts;
}
$actors = self::get_event_sources_with_count()['actors'];
$hosts = array();
foreach ( $actors as $actor ) {
$url = wp_parse_url( $actor->get_id() );
if ( isset( $url['host'] ) ) {
$hosts[] = $url['host'];
}
}
set_transient( 'event_bridge_for_activitypub_event_sources_hosts', $hosts );
return array_unique( $hosts );
}
/**
* Get add Event Sources ActivityPub IDs.
*
* @return array The Term list of Event Sources.
*/
public static function get_event_sources_ids() {
$ids = get_transient( 'event_bridge_for_activitypub_event_sources_ids' );
if ( $ids ) {
return $ids;
}
$actors = self::get_event_sources_with_count()['actors'];
$ids = array();
foreach ( $actors as $actor ) {
$ids[] = $actor->get_id();
}
set_transient( 'event_bridge_for_activitypub_event_sources_ids', $ids );
return $ids;
}
/**
* Get all Event-Sources.
*
* @return array The Term list of Event Sources.
*/
public static function get_event_sources() {
$args = array(
'post_type' => self::POST_TYPE,
'posts_per_page' => -1,
'orderby' => 'ID',
'order' => 'DESC',
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query
'meta_query' => array(
array(
'key' => 'activitypub_actor_id',
'compare' => 'EXISTS',
),
),
);
$query = new WP_Query( $args );
$event_sources = array_map(
function ( $post ) {
return Event_Source::init_from_cpt( $post );
},
$query->get_posts()
);
return $event_sources;
return self::get_event_sources_with_count()['actors'];
}
/**
@ -221,6 +261,12 @@ class Event_Sources {
* }
*/
public static function get_event_sources_with_count( $number = -1, $page = null, $args = array() ) {
$event_sources = get_transient( 'event_bridge_for_activitypub_event_sources' );
if ( $event_sources ) {
return $event_sources;
}
$defaults = array(
'post_type' => self::POST_TYPE,
'posts_per_page' => $number,
@ -239,7 +285,11 @@ class Event_Sources {
$query->get_posts()
);
return compact( 'actors', 'total' );
$event_sources = compact( 'actors', 'total' );
set_transient( 'event_bridge_for_activitypub_event_sources', $event_sources );
return $event_sources;
}
/**
@ -389,4 +439,15 @@ class Event_Sources {
$activity = $activity->to_json();
\Activitypub\safe_remote_post( $inbox, $activity, \Activitypub\Collection\Actors::APPLICATION_USER_ID );
}
/**
* Add Event Sources hosts to allowed hosts used by safe redirect.
*
* @param array $hosts The hosts before the filter.
* @return array
*/
public static function add_event_sources_hosts_to_allowed_redirect_hosts( $hosts ) {
$event_sources_hosts = self::get_event_sources_hosts();
return array_merge( $hosts, $event_sources_hosts );
}
}

49
includes/activitypub/handler/class-announce.php
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@ -1,49 +0,0 @@
<?php
/**
* Accept handler file.
*
* @package Event_Bridge_For_ActivityPub
*/
namespace Event_Bridge_For_ActivityPub\ActivityPub\Handler;
use Activitypub\Notification;
use Activitypub\Collection\Actors;
/**
* Handle Accept requests.
*/
class Announce {
/**
* Initialize the class, registering WordPress hooks.
*/
public static function init() {
\add_action(
'activitypub_inbox_announce',
array( self::class, 'handle_announce' )
);
}
/**
* Handle "Announce" requests.
*
* @param array $activity The activity object.
*/
public static function handle_announce( $activity ) {
if ( ! isset( $activity['object'] ) ) {
return;
}
$object = Actors::get_by_resource( $activity['object'] );
if ( ! $object || is_wp_error( $object ) ) {
// If we can not find a actor, we handle the `Accept` activity.
return;
}
// We only expect `Accept` activities being answers to follow requests by the application actor.
if ( Actors::APPLICATION_USER_ID !== $object->get__id() ) {
return;
}
}
}

34
includes/activitypub/handler/class-create.php
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@ -8,6 +8,7 @@
namespace Event_Bridge_For_ActivityPub\ActivityPub\Handler;
use Activitypub\Collection\Actors;
use Event_Bridge_For_ActivityPub\ActivityPub\Collection\Event_Sources;
use Event_Bridge_For_ActivityPub\Setup;
use function Activitypub\is_activity_public;
@ -46,6 +47,10 @@ class Create {
return;
}
if ( ! self::actor_is_event_source( $activity['actor'] ) ) {
return;
}
// Check if Activity is public or not.
if ( ! is_activity_public( $activity ) ) {
return;
@ -88,10 +93,11 @@ class Create {
return false;
}
if (
'Create' !== $json_params['type'] || 'Update' !== $json_params['type'] ||
is_wp_error( $request )
) {
if ( empty( $json_params['actor'] ) ) {
return false;
}
if ( ! in_array( $json_params['type'], array( 'Create', 'Update', 'Delete', 'Announce' ), true ) || is_wp_error( $request ) ) {
return $valid;
}
@ -103,11 +109,10 @@ class Create {
$required = array(
'id',
'startTime',
'name',
);
// Limit this as a safety measure.
add_filter( 'wp_revisions_to_keep', array( 'revisions_to_keep' ) );
if ( array_intersect( $required, array_keys( $object ) ) !== $required ) {
return false;
}
@ -116,11 +121,18 @@ class Create {
}
/**
* Return the number of revisions to keep.
* Check if an ActivityPub actor is an event source.
*
* @return int The number of revisions to keep.
* @param string $actor_id The actor ID.
* @return bool
*/
public static function revisions_to_keep() {
return 3;
public static function actor_is_event_source( $actor_id ) {
$event_sources = Event_Sources::get_event_sources();
foreach ( $event_sources as $event_source ) {
if ( $actor_id === $event_source->get_id() ) {
return true;
}
}
return false;
}
}

32
includes/activitypub/handler/class-delete.php
View file

@ -7,8 +7,8 @@
namespace Event_Bridge_For_ActivityPub\ActivityPub\Handler;
use Activitypub\Notification;
use Activitypub\Collection\Actors;
use Event_Bridge_For_ActivityPub\Setup;
/**
* Handle Delete requests.
@ -20,30 +20,40 @@ class Delete {
public static function init() {
\add_action(
'activitypub_inbox_delete',
array( self::class, 'handle_delete' )
array( self::class, 'handle_delete' ),
15,
2
);
}
/**
* Handle "Follow" requests.
*
* @param array $activity The activity object.
* @param array $activity The activity-object.
* @param int $user_id The id of the local blog-user.
*/
public static function handle_delete( $activity ) {
if ( ! isset( $activity['object'] ) ) {
public static function handle_delete( $activity, $user_id ) {
// We only process activities that are target to the application user.
if ( Actors::APPLICATION_USER_ID !== $user_id ) {
return;
}
$object = Actors::get_by_resource( $activity['object'] );
if ( ! $object || is_wp_error( $object ) ) {
// If we can not find a actor, we handle the `Delete` activity.
if ( ! Create::actor_is_event_source( $activity['actor'] ) ) {
return;
}
// We only expect `Delete` activities being answers to follow requests by the application actor.
if ( Actors::APPLICATION_USER_ID !== $object->get__id() ) {
// Check if an object is set.
if ( ! isset( $activity['object']['type'] ) || 'Event' !== $activity['object']['type'] ) {
return;
}
$transmogrifier_class = Setup::get_transmogrifier();
if ( ! $transmogrifier_class ) {
return;
}
$transmogrifier = new $transmogrifier_class( $activity['object'] );
$transmogrifier->delete();
}
}

8
includes/activitypub/model/class-event-source.php
View file

@ -12,6 +12,8 @@ use Activitypub\Activity\Actor;
use Event_Bridge_For_ActivityPub\ActivityPub\Collection\Event_Sources;
use WP_Error;
use function Activitypub\sanitize_url;
/**
* Event-Source (=ActivityPub Actor that is followed) model.
*/
@ -122,7 +124,7 @@ class Event_Source extends Actor {
*/
protected function get_post_meta_input() {
$meta_input = array();
$meta_input['activitypub_inbox'] = $this->get_shared_inbox();
$meta_input['activitypub_inbox'] = sanitize_url( $this->get_shared_inbox() );
$meta_input['activitypub_actor_json'] = $this->to_json();
return $meta_input;
@ -150,7 +152,7 @@ class Event_Source extends Actor {
*/
public function save() {
if ( ! $this->is_valid() ) {
return new WP_Error( 'activitypub_invalid_follower', __( 'Invalid Follower', 'activitypub' ), array( 'status' => 400 ) );
return new WP_Error( 'activitypub_invalid_follower', __( 'Invalid Follower', 'event-bridge-for-activitypub' ), array( 'status' => 400 ) );
}
if ( ! $this->get__id() ) {
@ -215,7 +217,7 @@ class Event_Source extends Actor {
$icon = $this->get_icon();
if ( isset( $icon['url'] ) ) {
$image = media_sideload_image( $icon['url'], $post_id, null, 'id' );
$image = media_sideload_image( sanitize_url( $icon['url'] ), $post_id, null, 'id' );
}
if ( isset( $image ) && ! is_wp_error( $image ) ) {
set_post_thumbnail( $post_id, $image );

317
includes/activitypub/transmogrifier/class-gatherpress.php
View file

@ -13,6 +13,10 @@ namespace Event_Bridge_For_ActivityPub\Activitypub\Transmogrifier;
use Activitypub\Activity\Extended_Object\Event;
use Activitypub\Activity\Extended_Object\Place;
use DateTime;
use function Activitypub\object_to_uri;
use function Activitypub\sanitize_url;
// Exit if accessed directly.
defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
@ -57,8 +61,222 @@ class GatherPress {
*/
private function get_post_id_from_activitypub_id() {
global $wpdb;
$id = $this->activitypub_event->get_id();
return $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE guid=%s AND post_type=%s", $id, 'gatherpress_event' ) );
return $wpdb->get_var(
$wpdb->prepare(
"SELECT ID FROM $wpdb->posts WHERE guid=%s",
esc_sql( $this->activitypub_event->get_id() )
)
);
}
/**
* Get the image URL and alt-text of an ActivityPub object.
*
* @param array $data The ActivityPub object as ann associative array.
* @return ?array Array containing the images URL and alt-text.
*/
private static function extract_image_alt_and_url( $data ) {
$image = array(
'url' => null,
'alt' => null,
);
// Check whether it is already simple.
if ( ! $data || is_string( $data ) ) {
$image['url'] = $data;
return $image;
}
if ( ! isset( $data['type'] ) ) {
return $image;
}
if ( ! in_array( $data['type'], array( 'Document', 'Image' ), true ) ) {
return $image;
}
if ( isset( $data['url'] ) ) {
$image['url'] = $data['url'];
} elseif ( isset( $data['id'] ) ) {
$image['id'] = $data['id'];
}
if ( isset( $data['name'] ) ) {
$image['alt'] = $data['name'];
}
return $image;
}
/**
* Returns the URL of the featured image.
*
* @return array
*/
private function get_featured_image() {
$event = $this->activitypub_event;
$image = $event->get_image();
if ( $image ) {
return self::extract_image_alt_and_url( $image );
}
$attachment = $event->get_attachment();
if ( is_array( $attachment ) && ! empty( $attachment ) ) {
$supported_types = array( 'Image', 'Document' );
$match = null;
foreach ( $attachment as $item ) {
if ( in_array( $item['type'], $supported_types, true ) ) {
$match = $item;
break;
}
}
$attachment = $match;
}
return self::extract_image_alt_and_url( $attachment );
}
/**
* Given an image URL return an attachment ID. Image will be side-loaded into the media library if it doesn't exist.
*
* Forked from https://gist.github.com/kingkool68/a66d2df7835a8869625282faa78b489a.
*
* @param int $post_id The post ID where the image will be set as featured image.
* @param string $url The image URL to maybe sideload.
* @uses media_sideload_image
* @return string|int|WP_Error
*/
public static function maybe_sideload_image( $post_id, $url = '' ) {
global $wpdb;
// Include necessary WordPress file for media handling.
if ( ! function_exists( 'media_sideload_image' ) ) {
require_once ABSPATH . 'wp-admin/includes/media.php';
require_once ABSPATH . 'wp-admin/includes/file.php';
require_once ABSPATH . 'wp-admin/includes/image.php';
}
// Check to see if the URL has already been fetched, if so return the attachment ID.
$attachment_id = $wpdb->get_var(
$wpdb->prepare( "SELECT `post_id` FROM {$wpdb->postmeta} WHERE `meta_key` = '_source_url' AND `meta_value` = %s", sanitize_url( $url ) )
);
if ( ! empty( $attachment_id ) ) {
return $attachment_id;
}
$attachment_id = $wpdb->get_var(
$wpdb->prepare( "SELECT `ID` FROM {$wpdb->posts} WHERE guid=%s", $url )
);
if ( ! empty( $attachment_id ) ) {
return $attachment_id;
}
// If the URL doesn't exist, sideload it to the media library.
return media_sideload_image( sanitize_url( $url ), $post_id, sanitize_url( $url ), 'id' );
}
/**
* Sideload an image_url set it as featured image and add the alt-text.
*
* @param int $post_id The post ID where the image will be set as featured image.
* @param string $image_url The image URL.
* @param string $alt_text The alt-text of the image.
* @return int The attachment ID
*/
private static function set_featured_image_with_alt( $post_id, $image_url, $alt_text = '' ) {
// Maybe sideload the image or get the Attachment ID of an existing one.
$image_id = self::maybe_sideload_image( $post_id, $image_url );
if ( is_wp_error( $image_id ) ) {
// Handle the error.
return $image_id;
}
// Set the image as the featured image for the post.
set_post_thumbnail( $post_id, $image_id );
// Update the alt text.
if ( ! empty( $alt_text ) ) {
update_post_meta( $image_id, '_wp_attachment_image_alt', sanitize_text_field( $alt_text ) );
}
return $image_id; // Return the attachment ID for further use if needed.
}
/**
* Add tags to post.
*
* @param int $post_id The post ID.
*/
private function add_tags_to_post( $post_id ) {
$tags_array = $this->activitypub_event->get_tag();
// Ensure the input is valid.
if ( empty( $tags_array ) || ! is_array( $tags_array ) || ! $post_id ) {
return false;
}
// Extract and process tag names.
$tag_names = array();
foreach ( $tags_array as $tag ) {
if ( isset( $tag['name'] ) && 'Hashtag' === $tag['type'] ) {
$tag_names[] = ltrim( $tag['name'], '#' ); // Remove the '#' from the name.
}
}
// Add the tags as terms to the post.
if ( ! empty( $tag_names ) ) {
wp_set_object_terms( $post_id, $tag_names, 'gatherpress_topic', true ); // 'true' appends to existing terms.
}
return true;
}
/**
* Add venue.
*
* @param int $post_id The post ID.
*/
private function add_venue( $post_id ) {
$location = $this->activitypub_event->get_location();
if ( ! $location ) {
return;
}
if ( ! isset( $location['name'] ) ) {
return;
}
$venue_instance = \GatherPress\Core\Venue::get_instance();
$venue_name = sanitize_title( $location['name'] );
$venue_slug = $venue_instance->get_venue_term_slug( $venue_name );
$venue_post = $venue_instance->get_venue_post_from_term_slug( $venue_slug );
if ( ! $venue_post ) {
$venue_id = wp_insert_post(
array(
'post_title' => sanitize_text_field( $location['name'] ),
'post_type' => 'gatherpress_venue',
'post_status' => 'publish',
)
);
} else {
$venue_id = $venue_post->ID;
}
$venue_information = array();
$venue_information['fullAddress'] = $location['address'] ?? ''; // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
$venue_information['phone_number'] = ''; // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
$venue_information['website'] = '';
$venue_information['permalink'] = '';
$venue_json = wp_json_encode( $venue_information );
update_post_meta( $venue_id, 'gatherpress_venue_information', $venue_json );
wp_set_object_terms( $post_id, $venue_slug, '_gatherpress_venue', true ); // 'true' appends to existing terms.
}
/**
@ -68,12 +286,12 @@ class GatherPress {
// Insert new GatherPress Event post.
$post_id = wp_insert_post(
array(
'post_title' => $this->activitypub_event->get_name(),
'post_title' => sanitize_text_field( $this->activitypub_event->get_name() ),
'post_type' => 'gatherpress_event',
'post_content' => $this->activitypub_event->get_content(),
'post_excerpt' => $this->activitypub_event->get_summary(),
'post_content' => wp_kses_post( $this->activitypub_event->get_content() ) . '<!-- wp:gatherpress/venue /-->',
'post_excerpt' => wp_kses_post( $this->activitypub_event->get_summary() ),
'post_status' => 'publish',
'guid' => $this->activitypub_event->get_id(),
'guid' => sanitize_url( $this->activitypub_event->get_id() ),
)
);
@ -81,12 +299,31 @@ class GatherPress {
return;
}
$event = new \GatherPress\Core\Event( $post_id );
// Insert the Dates.
$event = new GatherPress_Event( $post_id );
$start_time = $this->activitypub_event->get_start_time();
$end_time = $this->activitypub_event->get_end_time();
if ( ! $end_time ) {
$end_time = new DateTime( $start_time );
$end_time->modify( '+1 hour' );
$end_time = $end_time->format( 'Y-m-d H:i:s' );
}
$params = array(
'datetime_start' => $this->activitypub_event->get_start_time(),
'datetime_end' => $this->activitypub_event->get_end_time(),
'datetime_start' => $start_time,
'datetime_end' => $end_time,
'timezone' => $this->activitypub_event->get_timezone(),
);
// Insert featured image.
$image = $this->get_featured_image();
self::set_featured_image_with_alt( $post_id, $image['url'], $image['alt'] );
// Add hashtags as terms.
$this->add_tags_to_post( $post_id );
$this->add_venue( $post_id );
// Sanitization of the params is done in the save_datetimes function just in time.
$event->save_datetimes( $params );
}
@ -94,18 +331,21 @@ class GatherPress {
* Save the ActivityPub event object as GatherPress Event.
*/
public function update() {
// Limit this as a safety measure.
add_filter( 'wp_revisions_to_keep', array( self::class, 'revisions_to_keep' ) );
$post_id = $this->get_post_id_from_activitypub_id();
// Insert new GatherPress Event post.
$post_id = wp_update_post(
array(
'ID' => $post_id,
'post_title' => $this->activitypub_event->get_name(),
'post_title' => sanitize_text_field( $this->activitypub_event->get_name() ),
'post_type' => 'gatherpress_event',
'post_content' => $this->activitypub_event->get_content(),
'post_excerpt' => $this->activitypub_event->get_summary(),
'post_content' => wp_kses_post( $this->activitypub_event->get_content() ) . '<!-- wp:gatherpress/venue /-->',
'post_excerpt' => wp_kses_post( $this->activitypub_event->get_summary() ),
'post_status' => 'publish',
'guid' => $this->activitypub_event->get_id(),
'guid' => sanitize_url( $this->activitypub_event->get_id() ),
)
);
@ -113,12 +353,57 @@ class GatherPress {
return;
}
$event = new \GatherPress\Core\Event( $post_id );
// Insert the dates.
$event = new GatherPress_Event( $post_id );
$start_time = $this->activitypub_event->get_start_time();
$end_time = $this->activitypub_event->get_end_time();
if ( ! $end_time ) {
$end_time = new DateTime( $start_time );
$end_time->modify( '+1 hour' );
$end_time = $end_time->format( 'Y-m-d H:i:s' );
}
$params = array(
'datetime_start' => $this->activitypub_event->get_start_time(),
'datetime_end' => $this->activitypub_event->get_end_time(),
'datetime_start' => $start_time,
'datetime_end' => $end_time,
'timezone' => $this->activitypub_event->get_timezone(),
);
// Sanitization of the params is done in the save_datetimes function just in time.
$event->save_datetimes( $params );
// Insert featured image.
$image = $this->get_featured_image();
self::set_featured_image_with_alt( $post_id, $image['url'], $image['alt'] );
// Add hashtags.
$this->add_tags_to_post( $post_id );
$this->add_venue( $post_id );
// Limit this as a safety measure.
remove_filter( 'wp_revisions_to_keep', array( self::class, 'revisions_to_keep' ) );
}
/**
* Save the ActivityPub event object as GatherPress event.
*/
public function delete() {
$post_id = $this->get_post_id_from_activitypub_id();
$thumbnail_id = get_post_thumbnail_id( $post_id );
if ( $thumbnail_id ) {
wp_delete_attachment( $thumbnail_id, true );
}
wp_delete_post( $post_id, true );
}
/**
* Return the number of revisions to keep.
*
* @return int The number of revisions to keep.
*/
public static function revisions_to_keep() {
return 5;
}
}

90
includes/class-event-sources.php
View file

@ -11,6 +11,7 @@ namespace Event_Bridge_For_ActivityPub;
use Activitypub\Activity\Extended_Object\Event;
use Activitypub\Collection\Actors;
use Event_Bridge_For_ActivityPub\ActivityPub\Collection\Event_Sources as Event_Sources_Collection;
use function Activitypub\get_remote_metadata_by_actor;
use function Activitypub\is_activitypub_request;
@ -21,38 +22,6 @@ use function Activitypub\is_activitypub_request;
* @package Event_Bridge_For_ActivityPub
*/
class Event_Sources {
/**
* The custom post type.
*/
const POST_TYPE = 'event_bridge_follow';
/**
* Constructor.
*/
public function __construct() {
\add_action( 'activitypub_inbox', array( $this, 'handle_activitypub_inbox' ), 15, 3 );
}
/**
* Handle the ActivityPub Inbox.
*
* @param array $data The raw post data JSON object as an associative array.
* @param int $user_id The target user id.
* @param string $type The activity type.
*/
public static function handle_activitypub_inbox( $data, $user_id, $type ) {
if ( Actors::APPLICATION_USER_ID !== $user_id ) {
return;
}
if ( ! in_array( $type, array( 'Create', 'Delete', 'Announce', 'Undo Announce' ), true ) ) {
return;
}
$event = Event::init_from_array( $data );
return $event;
}
/**
* Get metadata of ActivityPub Actor by ID/URL.
*
@ -71,26 +40,6 @@ class Event_Sources {
return get_remote_metadata_by_actor( $url );
}
/**
* Respond to the Ajax request to fetch feeds
*/
public function ajax_fetch_events() {
if ( ! isset( $_POST['Event_Bridge_For_ActivityPub'] ) ) {
wp_send_json_error( 'missing-parameters' );
}
check_ajax_referer( 'fetch-events-' . sanitize_user( wp_unslash( $_POST['actor'] ) ) );
$actor = Actors::get_by_resource( sanitize_user( wp_unslash( $_POST['actor'] ) ) );
if ( ! $actor ) {
wp_send_json_error( 'unknown-actor' );
}
$actor->retrieve();
wp_send_json_success();
}
/**
* Get the Application actor via FEP-2677.
*
@ -125,6 +74,39 @@ class Event_Sources {
return false;
}
/**
* Filter that cached external posts are not scheduled via the ActivityPub plugin.
*
* Posts that are actually just external events are treated as cache. They are displayed in
* the frontend HTML view and redirected via ActivityPub request, but we do not own them.
*
* @param bool $disabled If it is disabled already by others (the upstream ActivityPub plugin).
* @param WP_Post $post The WordPress post object.
* @return bool True if the post can be federated via ActivityPub.
*/
public static function is_cached_external_post( $disabled, $post = null ): bool {
if ( $disabled || ! $post ) {
return $disabled;
}
if ( ! str_starts_with( \get_site_url(), $post->guid ) ) {
return true;
}
return false;
}
/**
* Determine whether a WP post is a cached external event.
*
* @param WP_Post $post The WordPress post object.
* @return bool
*/
public static function is_cached_external_event( $post ): bool {
if ( ! str_starts_with( \get_site_url(), $post->guid ) ) {
return true;
}
return false;
}
/**
* Add the ActivityPub template for EventPrime.
*
@ -150,8 +132,8 @@ class Event_Sources {
return $template;
}
if ( ! str_starts_with( \get_site_url(), $post->guid ) ) {
\wp_redirect( $post->guid, 301 );
if ( self::is_cached_external_event( $post ) ) {
\wp_safe_redirect( $post->guid, 301 );
exit;
}

5
includes/class-setup.php
View file

@ -15,6 +15,7 @@ namespace Event_Bridge_For_ActivityPub;
// Exit if accessed directly.
defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
use Activitypub\Activity\Extended_Object\Event;
use Event_Bridge_For_ActivityPub\ActivityPub\Collection\Event_Sources as Event_Sources_Collection;
use Event_Bridge_For_ActivityPub\ActivityPub\Handler;
use Event_Bridge_For_ActivityPub\Admin\Event_Plugin_Admin_Notices;
@ -241,7 +242,9 @@ class Setup {
if ( get_option( 'event_bridge_for_activitypub_event_sources_active' ) ) {
add_action( 'init', array( Event_Sources_Collection::class, 'init' ) );
add_action( 'activitypub_register_handlers', array( Handler::class, 'register_handlers' ) );
add_action( 'admin_init', array( User_Interface::class, 'init' ) );
// add_action( 'admin_init', array( User_Interface::class, 'init' ) );
add_filter( 'allowed_redirect_hosts', array( Event_Sources_Collection::class, 'add_event_sources_hosts_to_allowed_redirect_hosts' ) );
add_filter( 'activitypub_is_post_disabled', array( Event_Sources::class, 'is_cached_external_post' ), 10, 2 );
}
\add_filter( 'template_include', array( \Event_Bridge_For_ActivityPub\Event_Sources::class, 'redirect_activitypub_requests_for_cached_external_events' ), 100 );

6
templates/event-sources.php
View file

@ -20,12 +20,14 @@ defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
?>
<div class="wrap event_bridge_for_activitypub-admin-table-container">
<h2> <?php esc_html_e( 'List of Event Sources', 'event-bridge-for-activitypub' ); ?> </h2>
<!-- Table title with add new button like on post edit pages -->
<div class="event_bridge_for_activitypub-admin-table-top">
<h2 class="wp-heading-inline"> <?php esc_html_e( 'List of Event Sources', 'event-bridge-for-activitypub' ); ?> </h2>
<!-- Button that triggers ThickBox -->
<a href="#TB_inline?width=600&height=400&inlineId=Event_Bridge_For_ActivityPub_add_new_source" class="thickbox page-title-action">
<?php esc_html_e( 'Add Event Source', 'event-bridge-for-activitypub' ); ?>
</a>
</div>
<!-- ThickBox content (hidden initially) -->
<div id="Event_Bridge_For_ActivityPub_add_new_source" style="display:none;">

2
templates/settings.php
View file

@ -100,7 +100,7 @@ $current_category_mapping = \get_option( 'event_bridge_for_activitypub_ev
</div>
<div class="box">
<h3><?php \esc_html_e( 'Configuration of the Event Sources feature', 'activitypub' ); ?></h3>
<h2><?php \esc_html_e( 'Event Sources', 'event-bridge-for-activitypub' ); ?></h2>
<?php
if ( count( $event_plugins_supporting_event_sources ) ) {
?>