wordpress-activitypub/includes/model/class-activity.php

239 lines
4.4 KiB
PHP

<?php
namespace Activitypub\Model;
/**
* ActivityPub Post Class
*
* @author Matthias Pfefferle
*
* @see https://www.w3.org/TR/activitypub/
*/
class Activity {
/**
* The JSON-LD context.
*
* @var array
*/
private $context = array(
'https://www.w3.org/ns/activitystreams',
'https://w3id.org/security/v1',
array(
'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers',
'PropertyValue' => 'schema:PropertyValue',
'schema' => 'http://schema.org#',
'pt' => 'https://joinpeertube.org/ns#',
'toot' => 'http://joinmastodon.org/ns#',
'value' => 'schema:value',
'Hashtag' => 'as:Hashtag',
'featured' => array(
'@id' => 'toot:featured',
'@type' => '@id',
),
'featuredTags' => array(
'@id' => 'toot:featuredTags',
'@type' => '@id',
),
),
);
/**
* The published date.
*
* @var string
*/
private $published = '';
/**
* The Activity-ID.
*
* @var string
*/
private $id = '';
/**
* The Activity-Type.
*
* @var string
*/
private $type = 'Create';
/**
* The Activity-Actor.
*
* @var string
*/
private $actor = '';
/**
* The Audience.
*
* @var array
*/
private $to = array( 'https://www.w3.org/ns/activitystreams#Public' );
/**
* The CC.
*
* @var array
*/
private $cc = array();
/**
* The Activity-Object.
*
* @var array
*/
private $object = null;
/**
* The Class-Constructor.
*
* @param string $type The Activity-Type.
* @param boolean $context The JSON-LD context.
*/
public function __construct( $type = 'Create', $context = true ) {
if ( true !== $context ) {
$this->context = null;
}
$this->type = \ucfirst( $type );
$this->published = \gmdate( 'Y-m-d\TH:i:s\Z', \strtotime( 'now' ) );
}
/**
* Magic Getter/Setter
*
* @param string $method The method name.
* @param string $params The method params.
*
* @return mixed The value.
*/
public function __call( $method, $params ) {
$var = \strtolower( \substr( $method, 4 ) );
if ( \strncasecmp( $method, 'get', 3 ) === 0 ) {
return $this->$var;
}
if ( \strncasecmp( $method, 'set', 3 ) === 0 ) {
$this->$var = $params[0];
}
if ( \strncasecmp( $method, 'add', 3 ) === 0 ) {
if ( ! is_array( $this->$var ) ) {
$this->$var = $params[0];
}
if ( is_array( $params[0] ) ) {
$this->$var = array_merge( $this->$var, $params[0] );
} else {
array_push( $this->$var, $params[0] );
}
$this->$var = array_unique( $this->$var );
}
}
/**
* Convert from a Post-Object.
*
* @param Post $post The Post-Object.
*
* @return void
*/
public function from_post( Post $post ) {
$this->object = $post->to_array();
if ( isset( $object['published'] ) ) {
$this->published = $object['published'];
}
$path = sprintf( 'users/%d/followers', intval( $post->get_post_author() ) );
$this->add_to( get_rest_url_by_path( $path ) );
if ( isset( $this->object['attributedTo'] ) ) {
$this->actor = $this->object['attributedTo'];
}
foreach ( $post->get_tags() as $tag ) {
if ( 'Mention' === $tag['type'] ) {
$this->add_cc( $tag['href'] );
}
}
$type = \strtolower( $this->type );
if ( isset( $this->object['id'] ) ) {
$this->id = add_query_arg( 'activity', $type, $this->object['id'] );
}
}
public function from_comment( $object ) {
}
public function to_comment() {
}
public function from_remote_array( $array ) {
}
/**
* Convert to an Array.
*
* @return array The Array.
*/
public function to_array() {
$array = array_filter( \get_object_vars( $this ) );
if ( $this->context ) {
$array = array( '@context' => $this->context ) + $array;
}
unset( $array['context'] );
return $array;
}
/**
* Convert to JSON
*
* @return string The JSON.
*/
public function to_json() {
return \wp_json_encode( $this->to_array(), \JSON_HEX_TAG | \JSON_HEX_AMP | \JSON_HEX_QUOT );
}
/**
* Convert to a Simple Array.
*
* @return string The array.
*/
public function to_simple_array() {
$activity = array(
'@context' => $this->context,
'type' => $this->type,
'actor' => $this->actor,
'object' => $this->object,
'to' => $this->to,
'cc' => $this->cc,
);
if ( $this->id ) {
$activity['id'] = $this->id;
}
return $activity;
}
/**
* Convert to a Simple JSON.
*
* @return string The JSON.
*/
public function to_simple_json() {
return \wp_json_encode( $this->to_simple_array(), \JSON_HEX_TAG | \JSON_HEX_AMP | \JSON_HEX_QUOT );
}
}