modified file wp-piwik
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<?php
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/**
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* Inspired by the PHP ActivityPub Library by @Landrok
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*
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* @link https://github.com/landrok/activitypub
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*
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* @package Activitypub
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*/
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namespace Activitypub\Activity;
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use Activitypub\Activity\Extended_Object\Event;
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use Activitypub\Activity\Extended_Object\Place;
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/**
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* \Activitypub\Activity\Activity implements the common
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* attributes of an Activity.
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*
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* @see https://www.w3.org/TR/activitystreams-core/#activities
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* @see https://www.w3.org/TR/activitystreams-core/#intransitiveactivities
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*/
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class Activity extends Base_Object {
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const JSON_LD_CONTEXT = array(
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'https://www.w3.org/ns/activitystreams',
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);
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/**
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* The default types for Activities.
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*
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* @see https://www.w3.org/TR/activitystreams-vocabulary/#activity-types
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*
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* @var array
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*/
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const TYPES = array(
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'Accept',
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'Add',
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'Announce',
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'Arrive',
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'Block',
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'Create',
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'Delete',
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'Dislike',
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'Follow',
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'Flag',
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'Ignore',
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'Invite',
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'Join',
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'Leave',
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'Like',
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'Listen',
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'Move',
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'Offer',
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'Read',
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'Reject',
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'Remove',
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'TentativeAccept',
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'TentativeReject',
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'Travel',
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'Undo',
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'Update',
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'View',
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);
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/**
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* The type of the object.
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*
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* @var string
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*/
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protected $type = 'Activity';
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/**
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* Describes the direct object of the activity.
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* For instance, in the activity "John added a movie to his
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* wishlist", the object of the activity is the movie added.
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*
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* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-object-term
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*
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* @var string|Base_Object|null
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*/
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protected $object;
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/**
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* Describes one or more entities that either performed or are
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* expected to perform the activity.
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* Any single activity can have multiple actors.
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* The actor MAY be specified using an indirect Link.
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*
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* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-actor
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*
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* @var string|array
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*/
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protected $actor;
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/**
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* The indirect object, or target, of the activity.
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* The precise meaning of the target is largely dependent on the
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* type of action being described but will often be the object of
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* the English preposition "to".
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* For instance, in the activity "John added a movie to his
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* wishlist", the target of the activity is John's wishlist.
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* An activity can have more than one target.
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*
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* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-target
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*
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* @var string|array
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*/
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protected $target;
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/**
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* Describes the result of the activity.
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* For instance, if a particular action results in the creation of
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* a new resource, the result property can be used to describe
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* that new resource.
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*
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* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-result
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*
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* @var string|Base_Object
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*/
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protected $result;
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/**
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* Identifies a Collection containing objects considered to be responses
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* to this object.
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* WordPress has a strong core system of approving replies. We only include
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* approved replies here.
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*
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* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-replies
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*
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* @var array
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*/
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protected $replies;
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/**
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* An indirect object of the activity from which the
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* activity is directed.
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* The precise meaning of the origin is the object of the English
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* preposition "from".
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* For instance, in the activity "John moved an item to List B
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* from List A", the origin of the activity is "List A".
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*
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* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-origin
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*
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* @var string|array
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*/
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protected $origin;
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/**
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* One or more objects used (or to be used) in the completion of an
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* Activity.
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*
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* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-instrument
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*
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* @var string|array
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*/
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protected $instrument;
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/**
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* Set the object and copy Object properties to the Activity.
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*
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* Any to, bto, cc, bcc, and audience properties specified on the object
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* MUST be copied over to the new "Create" activity by the server.
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*
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* @see https://www.w3.org/TR/activitypub/#object-without-create
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*
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* @param array|string|Base_Object|Activity|Actor|null $data Activity object.
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*/
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public function set_object( $data ) {
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$object = $data;
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// Convert array to appropriate object type.
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if ( is_array( $data ) ) {
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$type = $data['type'] ?? null;
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if ( in_array( $type, self::TYPES, true ) ) {
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$object = self::init_from_array( $data );
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} elseif ( in_array( $type, Actor::TYPES, true ) ) {
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$object = Actor::init_from_array( $data );
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} elseif ( in_array( $type, Base_Object::TYPES, true ) ) {
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switch ( $type ) {
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case 'Event':
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$object = Event::init_from_array( $data );
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break;
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case 'Place':
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$object = Place::init_from_array( $data );
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break;
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default:
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$object = Base_Object::init_from_array( $data );
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break;
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}
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} else {
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$object = Generic_Object::init_from_array( $data );
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}
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}
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$this->set( 'object', $object );
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$this->pre_fill_activity_from_object();
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}
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/**
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* Fills the Activity with the specified activity object.
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*/
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public function pre_fill_activity_from_object() {
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$object = $this->get_object();
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// Check if `$data` is a URL and use it to generate an ID then.
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if ( is_string( $object ) && filter_var( $object, FILTER_VALIDATE_URL ) && ! $this->get_id() ) {
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$this->set( 'id', $object . '#activity-' . strtolower( $this->get_type() ) . '-' . time() );
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return;
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}
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// Check if `$data` is an object and copy some properties otherwise do nothing.
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if ( ! is_object( $object ) ) {
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return;
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}
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foreach ( array( 'to', 'bto', 'cc', 'bcc', 'audience' ) as $i ) {
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$value = $object->get( $i );
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if ( $value && ! $this->get( $i ) ) {
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$this->set( $i, $value );
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}
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}
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if ( $object->get_published() && ! $this->get_published() ) {
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$this->set( 'published', $object->get_published() );
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}
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if ( $object->get_updated() && ! $this->get_updated() ) {
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$this->set( 'updated', $object->get_updated() );
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}
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if ( $object->get_attributed_to() && ! $this->get_actor() ) {
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$this->set( 'actor', $object->get_attributed_to() );
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}
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if ( $this->get_type() !== 'Announce' && $object->get_in_reply_to() && ! $this->get_in_reply_to() ) {
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$this->set( 'in_reply_to', $object->get_in_reply_to() );
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}
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if ( $object->get_id() && ! $this->get_id() ) {
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$id = strtok( $object->get_id(), '#' );
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if ( $object->get_updated() ) {
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$updated = $object->get_updated();
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} elseif ( $object->get_published() ) {
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$updated = $object->get_published();
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} else {
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$updated = time();
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}
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$this->set( 'id', $id . '#activity-' . strtolower( $this->get_type() ) . '-' . $updated );
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}
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}
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/**
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* The context of an Activity is usually just the context of the object it contains.
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*
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* @return array $context A compacted JSON-LD context.
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*/
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public function get_json_ld_context() {
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if ( $this->object instanceof Base_Object ) {
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$class = get_class( $this->object );
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if ( $class && $class::JSON_LD_CONTEXT ) {
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// Without php 5.6 support this could be just: 'return $this->object::JSON_LD_CONTEXT;'.
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return $class::JSON_LD_CONTEXT;
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}
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}
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return static::JSON_LD_CONTEXT;
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}
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}
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