778cb57d83
Instructions below
To extend an Activity properties do:
public function onActivityPubValidateActivityStreamsTwoData(string $type_name, array &$validators): bool {
if ($type_name === '{Type}') {
$validators['attribute'] = myValidator::class;
}
return Event::next;
}
The Validator should be of the form:
use ActivityPhp\Type;
use ActivityPhp\Type\Util;
use Plugin\ActivityPub\Util\ModelValidator;
class myValidator extends ModelValidator
{
/**
* Validate Attribute's value
*
* @param mixed $value from JSON's attribute
* @param mixed $container A {Type}
* @return bool
* @throws Exception
*/
public function validate($value, $container): bool
{
// Validate that container is a {Type}
Util::subclassOf($container, Type\Extended\Object\{Type}::class, true);
return {Validation Result};
To act on received activities do:
public function onActivityPubNew{Type}(&$obj): bool {
To add information to Activities being federated by ActivityPub do:
public function ActivityPubAddActivityStreamsTwoData(string $type_name, &$type): bool {
To implement an ActivityStreams 2.0 representation do:
public function onActivityPubActivityStreamsTwoResponse(string $route, arrray $vars, ?TypeResponse &$response = null): bool {
if ($route === '{Object route}') {
$response = ModelResponse::handle($vars[{Object}]);
return Event::stop;
}
return Event::next;
}
143 lines
4.4 KiB
PHP
143 lines
4.4 KiB
PHP
<?php
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declare(strict_types=1);
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// {{{ License
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// This file is part of GNU social - https://www.gnu.org/software/social
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//
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// GNU social is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// GNU social is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
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// }}}
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/**
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* ActivityPub implementation for GNU social
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*
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* @package GNUsocial
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* @category ActivityPub
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* @author Diogo Peralta Cordeiro <@diogo.site>
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* @copyright 2021 Free Software Foundation, Inc http://www.fsf.org
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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namespace Plugin\ActivityPub\Util;
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use ActivityPhp\Type;
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use ActivityPhp\Type\TypeConfiguration;
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use ActivityPhp\Type\TypeResolver;
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use App\Core\Entity;
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use App\Core\Event;
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use App\Util\Exception\ClientException;
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use Exception;
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use InvalidArgumentException;
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use Plugin\ActivityPub\Util\Model\Activity;
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use Plugin\ActivityPub\Util\Model\Note;
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/**
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* This class handles translation between JSON and GS Entities
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*
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* @copyright 2021 Free Software Foundation, Inc http://www.fsf.org
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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abstract class Model
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{
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/**
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* Create a Type from an ActivityStreams 2.0 JSON string
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*
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* @param string|array $data
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* @return Type\AbstractObject
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* @throws Exception
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*/
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public static function jsonToType(string|array $data): Type\AbstractObject
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{
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if (is_string($data)) {
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$attributes = json_decode($data, true);
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if (json_last_error() !== JSON_ERROR_NONE
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|| !is_array($attributes)
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) {
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throw new Exception(
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sprintf(
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"An error occurred during the JSON decoding.\n '%s'",
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$data
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)
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);
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}
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} else {
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$attributes = $data;
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}
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if (!array_key_exists('type', $attributes)) {
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throw new InvalidArgumentException('Missing "type" attribute in $data: ' . var_export($data, true));
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}
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unset($data);
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try {
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$type = TypeResolver::getClass($attributes['type']);
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} catch (Exception $e) {
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$message = json_encode($attributes, JSON_PRETTY_PRINT);
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throw new Exception(
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$e->getMessage() . "\n$message"
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);
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}
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if (is_string($type)) {
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$type = new $type();
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}
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// Add our own extensions
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$validators = [];
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if (Event::handle('ActivityPubValidateActivityStreamsTwoData', [$attributes['type'], &$validators]) === Event::next) {
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foreach ($validators as $name => $class) {
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Type::addValidator($name, $class);
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$type->extend($name);
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}
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}
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TypeConfiguration::set('undefined_properties', 'include');
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foreach ($attributes as $name => $value) {
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$type->set($name, $value);
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}
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return $type;
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}
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/**
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* Create an Entity from an ActivityStreams 2.0 JSON string
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*
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* @param string|Type\AbstractObject $json
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* @param array $options
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* @return Entity
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*/
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abstract public static function fromJson(string|Type\AbstractObject $json, array $options = []): Entity;
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/**
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* Get a JSON
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*
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* @param mixed $object
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* @param ?int $options PHP JSON options
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* @return string
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* @throws ClientException
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*/
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public static function toJson(mixed $object, int $options = null): string
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{
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switch ($object::class) {
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case 'App\Entity\Activity':
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return Activity::toJson($object, $options);
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case 'App\Entity\Note':
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return Note::toJson($object, $options);
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default:
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$type = self::jsonToType($object);
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Event::handle('ActivityPubAddActivityStreamsTwoData', [$type->get('type'), &$type]);
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return $type->toJson($options);
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}
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}
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} |