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;
}
160 lines
6.3 KiB
PHP
160 lines
6.3 KiB
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
// {{{ License
|
|
// This file is part of GNU social - https://www.gnu.org/software/social
|
|
//
|
|
// GNU social is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// GNU social is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
|
|
// }}}
|
|
|
|
/**
|
|
* ActivityPub implementation for GNU social
|
|
*
|
|
* @package GNUsocial
|
|
* @category ActivityPub
|
|
* @author Diogo Peralta Cordeiro <@diogo.site>
|
|
* @copyright 2021 Free Software Foundation, Inc http://www.fsf.org
|
|
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
|
|
*/
|
|
|
|
namespace Plugin\ActivityPub\Util\Model;
|
|
|
|
use ActivityPhp\Type\AbstractObject;
|
|
use App\Core\DB\DB;
|
|
use App\Core\Event;
|
|
use App\Core\Router\Router;
|
|
use App\Entity\Activity as GSActivity;
|
|
use App\Util\Exception\ClientException;
|
|
use App\Util\Exception\NoSuchActorException;
|
|
use DateTime;
|
|
use DateTimeInterface;
|
|
use InvalidArgumentException;
|
|
use Plugin\ActivityPub\ActivityPub;
|
|
use Plugin\ActivityPub\Entity\ActivitypubActivity;
|
|
use Plugin\ActivityPub\Util\Model;
|
|
|
|
/**
|
|
* This class handles translation between JSON and ActivityPub Activities
|
|
*
|
|
* @copyright 2021 Free Software Foundation, Inc http://www.fsf.org
|
|
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
|
|
*/
|
|
class Activity extends Model
|
|
{
|
|
/**
|
|
* Create an Entity from an ActivityStreams 2.0 JSON string
|
|
* This will persist new GSActivities, GSObjects, and APActivity
|
|
*
|
|
* @param string|AbstractObject $json
|
|
* @param array $options
|
|
* @return ActivitypubActivity
|
|
* @throws ClientException
|
|
* @throws NoSuchActorException
|
|
*/
|
|
public static function fromJson(string|AbstractObject $json, array $options = []): ActivitypubActivity
|
|
{
|
|
$type_activity = is_string($json) ? self::jsonToType($json) : $json;
|
|
|
|
$activity_stream_two_verb_to_gs_verb = fn(string $verb): string => match ($verb) {
|
|
'Create' => 'create',
|
|
default => throw new ClientException('Invalid verb'),
|
|
};
|
|
|
|
$activity_stream_two_object_type_to_gs_table = fn(string $object): string => match ($object) {
|
|
'Note' => 'note',
|
|
default => throw new ClientException('Invalid verb'),
|
|
};
|
|
|
|
$ap_act = ActivitypubActivity::getWithPK(['activity_uri' => $type_activity->get('id')]);
|
|
if (is_null($ap_act)) {
|
|
$actor = ActivityPub::getActorByUri($type_activity->get('actor'));
|
|
// Store Object
|
|
$obj = null;
|
|
if (!$type_activity->has('object') || !isset($type_activity->get('object')['type'])) {
|
|
throw new InvalidArgumentException('Activity Object or Activity Object Type is missing.');
|
|
}
|
|
switch ($type_activity->get('object')['type']) {
|
|
case 'Note':
|
|
$obj = Note::toJson($type_activity->get('object'), ['source' => $source, 'actor_uri' => $type_activity->get('actor'), 'actor_id' => $actor->getId()]);
|
|
break;
|
|
default:
|
|
if (!Event::handle('ActivityPubObject', [$type_activity->get('object')['type'], $type_activity->get('object'), &$obj])) {
|
|
throw new ClientException('Unsupported Object type.');
|
|
}
|
|
break;
|
|
}
|
|
DB::persist($obj);
|
|
// Store Activity
|
|
$act = GSActivity::create([
|
|
'actor_id' => $actor->getId(),
|
|
'verb' => $activity_stream_two_verb_to_gs_verb($type_activity->get('type')),
|
|
'object_type' => $activity_stream_two_object_type_to_gs_table($type_activity->get('object')['type']),
|
|
'object_id' => $obj->getId(),
|
|
'is_local' => false,
|
|
'created' => new DateTime($activity['published'] ?? 'now'),
|
|
'source' => $source,
|
|
]);
|
|
DB::persist($act);
|
|
// Store ActivityPub Activity
|
|
$ap_act = ActivitypubActivity::create([
|
|
'activity_id' => $act->getId(),
|
|
'activity_uri' => $activity['id'],
|
|
'object_uri' => $activity['object']['id'],
|
|
'is_local' => false,
|
|
'created' => new DateTime($activity['published'] ?? 'now'),
|
|
'modified' => new DateTime(),
|
|
]);
|
|
DB::persist($ap_act);
|
|
}
|
|
|
|
Event::handle('ActivityPubNewActivity', [&$ap_act, &$act, &$obj]);
|
|
return $ap_act;
|
|
}
|
|
|
|
/**
|
|
* Get a JSON
|
|
*
|
|
* @param mixed $object
|
|
* @param int|null $options
|
|
* @return string
|
|
* @throws ClientException
|
|
*/
|
|
public static function toJson(mixed $object, ?int $options = null): string
|
|
{
|
|
if ($object::class !== 'App\Entity\Activity') {
|
|
throw new InvalidArgumentException('First argument type is Activity');
|
|
}
|
|
|
|
$gs_verb_to_activity_stream_two_verb = fn($verb): string => match ($verb) {
|
|
'create' => 'Create',
|
|
default => throw new ClientException('Invalid verb'),
|
|
};
|
|
|
|
$attr = [
|
|
'type' => $gs_verb_to_activity_stream_two_verb($object->getVerb()),
|
|
'@context' => 'https://www.w3.org/ns/activitystreams',
|
|
'id' => Router::url('activity_view', ['id' => $object->getId()], Router::ABSOLUTE_URL),
|
|
'published' => $object->getCreated()->format(DateTimeInterface::RFC3339),
|
|
'actor' => $object->getActor()->getUri(Router::ABSOLUTE_URL),
|
|
'to' => ['https://www.w3.org/ns/activitystreams#Public'], // TODO: implement proper scope address
|
|
'cc' => ['https://www.w3.org/ns/activitystreams#Public'],
|
|
'object' => self::jsonToType(self::toJson($object->getObject())),
|
|
];
|
|
|
|
$type = self::jsonToType($attr);
|
|
Event::handle('ActivityPubAddActivityStreamsTwoData', [$type->get('type'), &$type]);
|
|
return $type->toJson($options);
|
|
}
|
|
} |