Event-Federation/wordpress-activitypub-event-bridge
Event-Federation/wordpress-activitypub-event-bridge
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This commit is contained in:
André Menrath 2023-12-22 19:07:59 +01:00
parent 014b2e1171
commit f70bcec1fb
6 changed files with 74 additions and 528 deletions
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17
activitypub-event-transformers.php
View file

@ -25,20 +25,27 @@ if ( ! defined( 'ABSPATH' ) ) {
* Include fransformer class file and register the transformer class. * Include fransformer class file and register the transformer class.
* *
* @since 1.0.0 * @since 1.0.0
* @param \Activitypub\Transformer\Transformer_Factory $transformers_manager ActivtiyPub transformers manager. * @param \Activitypub\Transformer\Factory $factory ActivtiyPub transformers factory.
* @return void * @return void
*/ */
function register_event_transformers( $transformers_manager ) { function register_event_transformers( $transformers_factory ) {
require_once __DIR__ . '/activitypub/transformer/class-tribe.php'; require_once __DIR__ . '/activitypub/transformer/class-tribe.php';
$transformers_manager->register( new \Tribe() ); $transformers_factory->register( new \Tribe() );
require_once __DIR__ . '/activitypub/transformer/class-vs-event.php'; require_once __DIR__ . '/activitypub/transformer/class-vs-event.php';
$transformers_manager->register( new \VS_Event() ); $transformers_factory->register( new \VS_Event() );
} }
add_action( 'activitypub_transformers_register', 'register_event_transformers' ); add_action( 'activitypub_transformers_register', 'register_event_transformers' );
// Filter be object class
add_filter( 'activitypub_transformer', function( $transformer, $object, $object_class ) {
if ( $object->post_type === 'event' ) {
require_once __DIR__ . '/activitypub/transformer/class-vs-event.php';
return new \VS_Event( $object );
}
return $transformer;
}, 10, 3 );
// TODO Below here is temporary code needed to do local testing atm. // TODO Below here is temporary code needed to do local testing atm.

224
activitypub/object/class-event.php
View file

@ -1,224 +0,0 @@
<?php
/**
* ActivityPub Object of type Event.
*
* @package activity-event-transformers
* @license AGPL-3.0-or-later
*/
use function Activitypub\snake_to_camel_case;
require_once __DIR__ . '/class-place.php';
/**
* Event is an implementation of one of the Activity Streams Event object type.
*
* This class contains extra keys as used by Mobilizon to ensure compatibility.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-event
*/
class Event extends \Activitypub\Activity\Base_Object {
// todo maybe rename to mobilizon event?
const REPLIES_MODERATION_OPTION_TYPES = array( 'allow_all', 'closed' );
const JOIN_MODE_TYPES = array( 'free', 'restricted', 'external' ); // amd 'invite', but not used by mobilizon atm
const ICAL_EVENT_STATUS_TYPES = array( 'TENTATIVE', 'CONFIRMED', 'CANCELLED' );
/**
* Event is an implementation of one of the
* Activity Streams
*
* @var string
*/
protected $type = 'Event';
protected $name;
protected $contacts;
/**
* Extension invented by PeerTube whether comments/replies are <enabled>
* Mobilizon also implemented this as a fallback to their own
* repliesModerationOption.
*
* @context https://joinpeertube.org/ns#commentsEnabled
* @see https://docs.joinpeertube.org/api/activitypub#video
* @see https://docs.joinmobilizon.org/contribute/activity_pub/
* @var bool|null
*/
protected $comments_enabled;
/**
* @context https://joinmobilizon.org/ns#timezone
* @var string
*/
protected $timezone;
/**
* @context https://joinmobilizon.org/ns#repliesModerationOption
* @see https://docs.joinmobilizon.org/contribute/activity_pub/#repliesmoderation
* @var string
*/
protected $replies_moderation_option;
/**
* @context https://joinmobilizon.org/ns#anonymousParticipationEnabled
* @see https://docs.joinmobilizon.org/contribute/activity_pub/#anonymousparticipationenabled
* @var bool
*/
protected $anonymous_participation_enabled;
/**
* @context https://schema.org/category
* @var enum
*/
protected $category;
/**
* @context https://schema.org/inLanguage
* @var
*/
protected $in_language;
/**
* @context https://joinmobilizon.org/ns#isOnline
* @var bool
*/
protected $is_online;
/**
* @context https://www.w3.org/2002/12/cal/ical#status
* @var enum
*/
protected $status;
/**
* @context https://joinmobilizon.org/ns#externalParticipationUrl
* @var string
*/
protected $external_participation_url;
/**
* @context https://joinmobilizon.org/ns#joinMode
* @see https://docs.joinmobilizon.org/contribute/activity_pub/#joinmode
* @var
*/
protected $join_mode;
/**
* @context https://joinmobilizon.org/ns#participantCount
* @var int
*/
protected $participant_count;
/**
* @context https://schema.org/maximumAttendeeCapacity
* @see https://docs.joinmobilizon.org/contribute/activity_pub/#maximumattendeecapacity
* @var int
*/
protected $maximum_attendee_capacity;
/**
* @context https://schema.org/remainingAttendeeCapacity
* @see https://docs.joinmobilizon.org/contribute/activity_pub/#remainignattendeecapacity
* @var int
*/
protected $remaining_attendee_capacity;
/**
* Get the context information for a property.
*
* @param string $property
*
* @return array|null
*/
private function get_property_context( string $property ) {
$reflection_class = new ReflectionClass( $this );
if ( $reflection_class->hasProperty( $property ) ) {
$reflection_property = $reflection_class->getProperty( $property );
$doc_omment = $reflection_property->getDocComment();
// Extract context information from the doc comment.
preg_match( '/@context\s+([^\s]+)/', $doc_omment, $matches );
if ( ! empty( $matches[1] ) ) {
return $matches[1];
} else {
return 'https://www.w3.org/ns/activitystreams';
}
}
return null;
}
private static function compact_context( $key_context, $namespace, $abbreviation ) {
$abbreviation_added = false;
foreach ( $key_context as $key => $value ) {
// Check if the key starts with the namespace
if ( strpos( $value, $namespace ) === 0 ) {
// Replace the key
$key_context[ $key ] = $abbreviation . ':' . substr( $value, strlen( $namespace ) );
// Add abbreviation element for the namespace only once
if ( ! $abbreviation_added ) {
$key_context = array( $abbreviation => $namespace ) + $key_context;
$abbreviation_added = true;
}
}
}
return $key_context;
}
public static function get_context() {
$class = self::class;
$transient = "activitypub_json_context_object_{$class}";
$context = get_transient( $transient );
// if ( $context ) {
// return $context;
// }
$reflection_class = new ReflectionClass( self::class );
$context = array(
'https://www.w3.org/ns/activitystreams',
'https://w3id.org/security/v1',
);
$key_context = array();
foreach ( $reflection_class->getProperties() as $property ) {
$doc_omment = $property->getDocComment();
// Extract context information from the doc comment.
preg_match( '/@context\s+([^\s]+)/', $doc_omment, $matches );
if ( ! empty( $matches[1] ) ) {
$key_context[ snake_to_camel_case( $property->name ) ] = $matches[1];
}
}
$namespace_abbreviations = array(
'https://joinpeertube.org/ns#' => 'pt',
'https://joinmobilizon.org/ns#' => 'mz',
'https://schema.org/' => 'sc',
'https://www.w3.org/2002/12/cal/ical#' => 'ical',
);
foreach ( $namespace_abbreviations as $namespace => $abbreviation ) {
$key_context = self::compact_context( $key_context, $namespace, $abbreviation );
}
$context[] = $key_context;
set_transient( $transient, $context );
return $context;
}
/**
* When using this class we need to add some filters.
*/
public function __construct() {
// $class = strtolower( get_class( $this ) );
// add_filter( "activitypub_activity_{$class}_object_array", [ $this, 'filter_object_array' ] );
// add_filter( 'activitypub_json_context', [ $this, 'filter_json_context' ] );
}
}

90
activitypub/object/class-place.php
View file

@ -1,90 +0,0 @@
<?php
/**
* Event is an implementation of one of the
* Activity Streams Event object type
*
* @package activity-event-transformers
* @license AGPL-3.0-or-later
*/
/**
* Event is an implementation of one of the
* Activity Streams Event object type
*
* The Object is the primary base type for the Activity Streams
* vocabulary.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-event
*/
class Place extends \Activitypub\Activity\Base_Object {
/**
* Place is an implementation of one of the
* Activity Streams
*
* @var string
*/
protected $type = 'Place';
/**
* Indicates the accuracy of position coordinates on a Place objects.
* Expressed in properties of percentage. e.g. "94.0" means "94.0% accurate".
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-accuracy
* @var float xsd:float [>= 0.0f, <= 100.0f]
*/
protected $accuracy;
/**
* Indicates the altitude of a place. The measurement units is indicated using the units property.
* If units is not specified, the default is assumed to be "m" indicating meters.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-altitude
* @var float xsd:float
*/
protected $altitude;
/**
* The latitude of a place.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-latitude
* @var float xsd:float
*/
protected $latitude;
/**
* The longitude of a place.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-longitude
* @var float xsd:float
*/
protected $longitude;
/**
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-radius
* @var float
*/
protected $radius;
/**
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-units
* @var string
*/
protected $units;
/**
* Extension invented by PeerTube whether comments/replies are <enabled>
* Mobilizon also implemented this as a fallback to their own
* repliesModerationOption.
*
* @see https://docs.joinpeertube.org/api/activitypub#video
* @see https://docs.joinmobilizon.org/contribute/activity_pub/
*
* @var bool
*/
protected $comments_enabled;
/**
* @var Postal_Address|string
*/
protected $address;
}

58
activitypub/object/class-postal-address.php
View file

@ -1,58 +0,0 @@
<?php
/**
* PostalAddress is a custom ActivityPub object firstly used by Mobilizon
* derived from https://schema.org/PostalAddress.
*
* @package activity-event-transformers
* @license AGPL-3.0-or-later
*/
/**
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-event
*/
class Postal_Address extends \Activitypub\Activity\Base_Object {
/**
* Place is an implementation of one of the
* Activity Streams
*
* @var string
*/
protected $type = 'PostalAddress';
/**
* The country. For example, USA. You can also provide the two-letter ISO 3166-1 alpha-2 country code.
*
* @see http://en.wikipedia.org/wiki/ISO_3166-1
* @var string
*/
protected $address_country;
/**
* The locality in which the street address is, and which is in the region. For example, Mountain View.
*
* @var string
*/
protected $address_locality;
/**
* The region in which the locality is, and which is in the country.
* For example, California or another appropriate first-level Administrative division.
*
* @var string
*/
protected $address_region;
/**
* The postal code. For example, 94043.
*
* @var string
*/
protected $postal_code;
/**
* The street address. For example, 1600 Amphitheatre Pkwy.
*
* @var string
*/
protected $street_address;
}

93
activitypub/transformer/class-tribe.php
View file

@ -10,12 +10,16 @@ if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly. exit; // Exit if accessed directly.
} }
use Activitypub\Transformer\Post;
use Activitypub\Activity\Event;
use Activitypub\Activity\Place;
/** /**
* ActivityPub Tribe Transformer * ActivityPub Tribe Transformer
* *
* @since 1.0.0 * @since 1.0.0
*/ */
class Tribe extends \Activitypub\Transformer\Base { class Tribe extends Post {
/** /**
* The Tribe Event object. * The Tribe Event object.
* *
@ -23,16 +27,16 @@ class Tribe extends \Activitypub\Transformer\Base {
*/ */
protected $tribe_event; protected $tribe_event;
/** // /**
* resolve the tribe metadata in the setter of wp_post. // * resolve the tribe metadata in the setter of wp_post.
* // *
* @param WP_Post $wp_post The WP_Post object. // * @param WP_Post $wp_post The WP_Post object.
* @return void // * @return void
*/ // */
public function set_wp_post( WP_Post $wp_post ) { // public function set_wp_post( WP_Post $wp_post ) {
parent::set_wp_post( $wp_post ); // parent::set_wp_post( $wp_post );
$this->tribe_event = tribe_get_event( $wp_post->ID ); // $this->tribe_event = tribe_get_event( $wp_post->ID );
} // }
/** /**
* Get widget name. * Get widget name.
@ -93,7 +97,7 @@ class Tribe extends \Activitypub\Transformer\Base {
// todo make it possible that one event can have multiple categories? // todo make it possible that one event can have multiple categories?
// using cat_slugs isn't 100% nice way to do this, don't know if it's a good idea // using cat_slugs isn't 100% nice way to do this, don't know if it's a good idea
$categories = tribe_get_event_cat_slugs( $this->wp_post->ID ); $categories = tribe_get_event_cat_slugs( $this->object->ID );
if ( count( $categories ) === 0 ) { if ( count( $categories ) === 0 ) {
return null; return null;
@ -174,69 +178,4 @@ class Tribe extends \Activitypub\Transformer\Base {
$venue->country $venue->country
); // todo add checks that everything exists here (lol) ); // todo add checks that everything exists here (lol)
} }
/**
* Transforms the VS Event WP_Post object to an ActivityPub Event Object.
*
* @see \Activitypub\Activity\Base_Object
*
* @return \Activitypub\Activity\Base_Object The ActivityPub Object.
*/
public function transform() {
$object = new Event();
// todo xsd:dateTime is probably nearly everywhere used, should it be default?
$this->set_timeformat( 'Y-m-d\TH:i:s\Z' );
// todo this looks very duplicated
$object->set_default_language_for_maps( $this->get_locale() );
$object->set_in_language( $this->get_locale() );
$object
// set metadata
->set_id( $this->get_id() )
->set_url( $this->get_url() )
->set_external_participation_url( $this->get_url() )
->set_comments_enabled( $this->get_comments_open() )
->set_replies_moderation_option( 'allow_all' ) // comment_status = open todo
// set published and updated
->set_published( $this->get_published() )
->if( $this->get_updated() > $this->get_published() )
->set_updated( $this->get_updated() )
// set author and location
->set_attributed_to( $this->get_attributed_to() )
->set_location( $this->get_event_location()->to_array() )
// set content
->set_name( $this->get_post_property( 'post_title' ) )
->set_content( $this->get_content() )
->set_summary( $this->get_post_meta( 'post_excerpt', true, $this->get_content() ) )
->set_attachment( $this->get_attachments() )
// set event metadata
->set_start_time( $this->get_post_meta_time( '_EventStartDateUTC' ) )
->set_end_time( $this->get_post_meta_time( '_EventEndDateUTC' ) )
// ->set_duration() // todo
->set_status( $this->get_tribe_status() )
->set_join_mode( 'external' )
->set_tag( $this->get_tags() ) // todo maybe rename to get_hashtags()?
->set_category( $this->get_tribe_category() )
// set direkt addressants (to followers and mentions)
->set_to( $this->get_followers_stream() )
->set_cc( $this->get_cc() );
// todo events that cost something?
// maybe a setting for custom tags for online mode
// todo generator maybe
$some_infos = $object->check_jsonld_completeness(); // just used for debugging
assert( $object->get_type() === $this->get_object_type() );
return $object;
}
} }

118
activitypub/transformer/class-vs-event.php
View file

@ -6,11 +6,9 @@
* @license AGPL-3.0-or-later * @license AGPL-3.0-or-later
*/ */
require_once __DIR__ . '/../object/class-event.php'; use Activitypub\Activity\Event;
use Activitypub\Activity\Place;
use Activitypub\Activity\Base_Object; use Activitypub\Transformer\Post;
use Place;
use function Activitypub\get_rest_url_by_path;
if ( ! defined( 'ABSPATH' ) ) { if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly. exit; // Exit if accessed directly.
@ -21,7 +19,7 @@ if ( ! defined( 'ABSPATH' ) ) {
* *
* @since 1.0.0 * @since 1.0.0
*/ */
class VS_Event extends \Activitypub\Transformer\Base { class VS_Event extends Post {
/** /**
* Get widget name. * Get widget name.
* *
@ -89,8 +87,16 @@ class VS_Event extends \Activitypub\Transformer\Base {
/** /**
* Get the end time from the events metadata. * Get the end time from the events metadata.
*/ */
private function get_end_time() { protected function get_end_time() {
$end_time = get_post_meta( $this->wp_post->ID, 'event-date', true ); $end_time = get_post_meta( $this->object->ID, 'event-date', true );
return \gmdate( 'Y-m-d\TH:i:s\Z', $end_time );
}
/**
* Get the end time from the events metadata.
*/
protected function get_start_time() {
$end_time = get_post_meta( $this->object->ID, 'event-start-date', true );
return \gmdate( 'Y-m-d\TH:i:s\Z', $end_time ); return \gmdate( 'Y-m-d\TH:i:s\Z', $end_time );
} }
@ -98,7 +104,7 @@ class VS_Event extends \Activitypub\Transformer\Base {
* Get the event link from the events metadata. * Get the event link from the events metadata.
*/ */
private function get_event_link() { private function get_event_link() {
$event_link = get_post_meta( $this->wp_post->ID, 'event-link', true ); $event_link = get_post_meta( $this->object->ID, 'event-link', true );
if ( $event_link ) { if ( $event_link ) {
return array( return array(
'type' => 'Link', 'type' => 'Link',
@ -112,8 +118,8 @@ class VS_Event extends \Activitypub\Transformer\Base {
/** /**
* Overrides/extends the get_attachments function to also add the event Link. * Overrides/extends the get_attachments function to also add the event Link.
*/ */
protected function get_attachments() { protected function get_attachment() {
$attachments = parent::get_attachments(); $attachments = parent::get_attachment();
$attachments[0]['type'] = 'Document'; $attachments[0]['type'] = 'Document';
$attachments[0]['name'] = 'Banner'; $attachments[0]['name'] = 'Banner';
$event_link = $this->get_event_link(); $event_link = $this->get_event_link();
@ -123,85 +129,51 @@ class VS_Event extends \Activitypub\Transformer\Base {
return $attachments; return $attachments;
} }
protected function get_replies_moderation_option() {
return 'allow_all';
}
protected function get_status() {
return 'CONFIRMED';
}
/** /**
* Transforms the VS Event WP_Post object to an ActivityPub Event Object. * Transform the WordPress Object into an ActivityPub Object.
* *
* @see \Activitypub\Activity\Base_Object * @return Activitypub\Activity\Event
*
* @return \Activitypub\Activity\Base_Object The ActivityPub Object.
*/ */
public function transform() { public function to_object() {
// todo make tranform nicer
$context = Event::get_context();
$object = new Event(); $object = new Event();
$object
->set_id( $this->get_id() )
->set_url( $this->get_url() )
->set_type( $this->get_object_type() );
$published = \strtotime( $this->wp_post->post_date_gmt ); $vars = $object->get_object_var_keys();
$object->set_published( \gmdate( 'Y-m-d\TH:i:s\Z', $published ) ); foreach ( $vars as $var ) {
$getter = 'get_' . $var;
$updated = \strtotime( $this->wp_post->post_modified_gmt ); if ( method_exists( $this, $getter ) ) {
$value = call_user_func( array( $this, $getter ) );
if ( $updated > $published ) { if ( isset( $value ) ) {
$object->set_updated( \gmdate( 'Y-m-d\TH:i:s\Z', $updated ) ); $setter = 'set_' . $var;
call_user_func( array( $object, $setter ), $value );
}
}
} }
$object return $object
->set_attributed_to( $this->get_attributed_to() )
->set_content( $this->get_content() )
->set_content_map( $this->get_content_map );
$summary = get_post_meta( $this->wp_post->ID, 'event-summary', true );
if ( $summary ) {
$object->set_summary( $summary );
} else {
$object->set_summary( $this->get_content() );
}
$start_time = get_post_meta( $this->wp_post->ID, 'event-start-date', true );
$object->set_start_time( \gmdate( 'Y-m-d\TH:i:s\Z', $start_time ) );
$hide_end_time = get_post_meta( $this->wp_post->ID, 'event-hide-end-time', true );
if ( $hide_end_time != 'yes' ) {
$object->set_end_time( $this->get_end_time() );
}
$path = sprintf( 'users/%d/followers', intval( $this->wp_post->post_author ) );
$object
->set_location( $this->get_event_location( $this->wp_post->ID )->to_array() )
->set_comments_enabled( comments_open( $this->wp_post->ID ) )
->set_to(
array(
'https://www.w3.org/ns/activitystreams#Public',
get_rest_url_by_path( $path ),
)
)
->set_cc( array( get_rest_url_by_path( $path ) ) )
->set_attachment( $this->get_attachments() )
->set_tag( $this->get_tags() )
->set_replies_moderation_option( 'allow_all' ) ->set_replies_moderation_option( 'allow_all' )
->set_join_mode( 'external' ) ->set_join_mode( 'external' )
->set_external_participation_url( $this->get_url() ) ->set_external_participation_url( $this->get_url() )
->set_status( 'CONFIRMED' ) ->set_status( 'CONFIRMED' )
->set_category( 'MEETING' ) ->set_category( 'MEETING' )
->set_contacts( array() ) ->set_name( get_the_title( $this->object->ID ) )
->set_name( get_the_title( $this->wp_post->ID ) )
->set_timezone( 'Europe/Vienna' ) ->set_timezone( 'Europe/Vienna' )
->set_is_online( false ) ->set_is_online( false )
->set_in_language( 'de ' ) ->set_in_language( 'de ' )
->set_actor( $this->get_attributed_to() ); ->set_actor ('http://wp.lan/@blog')
->set_to ( [
$object->set_remaining_attendee_capacity( null ) "https://www.w3.org/ns/activitystreams#Public"
->set_anonymous_participation_enabled( null ) ]);
->set_draft( false );
$object->set_participant_count( 2 );
$object->set_uuid( '1de96701-bceb-4a78-bc18-6c417f52b314' );
return $object;
} }
} }