gnu-social/plugins/ActivityPub/lib/models/Activitypub_delete.php

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<?php
// 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
* @author Diogo Cordeiro <diogo@fc.up.pt>
* @copyright 2018-2019 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
* @link http://www.gnu.org/software/social/
*/
defined('GNUSOCIAL') || die();
/**
* ActivityPub error representation
*
* @category Plugin
* @package GNUsocial
* @author Diogo Cordeiro <diogo@fc.up.pt>
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class Activitypub_delete
{
/**
* Generates an ActivityPub representation of a Delete
*
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* @param Notice $notice
* @return array pretty array to be used in a response
* @author Diogo Cordeiro <diogo@fc.up.pt>
*/
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public static function delete_to_array(Notice $notice): array
{
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return Activitypub_notice::notice_to_array($notice);
}
/**
* Verifies if a given object is acceptable for a Delete Activity.
*
* @param array|string $object
* @return bool
* @throws Exception
* @author Bruno Casteleiro <brunoccast@fc.up.pt>
*/
public static function validate_object($object): bool
{
if (!is_array($object)) {
if (!filter_var($object, FILTER_VALIDATE_URL)) {
throw new Exception('Object is not a valid Object URI for Activity.');
}
} else {
if (!isset($object['type'])) {
throw new Exception('Object type was not specified for Delete Activity.');
}
if ($object['type'] !== "Tombstone" && $object['type'] !== "Person") {
throw new Exception('Invalid Object type for Delete Activity.');
}
if (!isset($object['id'])) {
throw new Exception('Object id was not specified for Delete Activity.');
}
}
return true;
}
}