gnu-social/plugins/ActivityPub/lib/models/Activitypub_announce.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_announce
{
/**
* Generates an ActivityPub representation of a Announce
*
* @param Profile $actor
* @param Notice $notice
* @param Notice $repeat_of
* @return array pretty array to be used in a response
* @author Diogo Cordeiro <diogo@fc.up.pt>
*/
public static function announce_to_array(
Profile $actor,
Notice $notice,
Notice $repeat_of
): array {
$actor_uri = $actor->getUri();
$to = [common_local_url('apActorFollowers', ['id' => $actor->getID()])];
foreach ($notice->getAttentionProfiles() as $to_profile) {
$to[] = $to_profile->getUri();
}
$cc[]= 'https://www.w3.org/ns/activitystreams#Public';
$res = [
'@context' => 'https://www.w3.org/ns/activitystreams',
'id' => Activitypub_notice::getUri($notice),
'type' => 'Announce',
'actor' => $actor_uri,
'object' => Activitypub_notice::getUri($repeat_of),
'to' => $to,
'cc' => $cc,
];
return $res;
}
/**
* Convenience function for posting a repeat of an existing message.
*
* @param string $uri
* @param Profile $actor Profile which is doing the repeat
* @param Notice $target
* @return Notice
*/
public static function repeat(string $uri, Profile $actor, Notice $target): Notice
{
// TRANS: Message used to repeat a notice. RT is the abbreviation of 'retweet'.
// TRANS: %1$s is the repeated user's name, %2$s is the repeated notice.
$content = sprintf(
_('RT @%1$s %2$s'),
$actor->getNickname(),
$target->getContent()
);
$options = [
'source' => 'ActivityPub',
'uri' => $uri,
'is_local' => ($actor->isLocal() ? Notice::LOCAL_PUBLIC : Notice::REMOTE),
'repeat_of' => $target->getParent()->getID(),
'scope' => $target->getScope(),
];
// Scope is same as this one's
return Notice::saveNew(
$actor->getID(),
$content,
'ActivityPub',
$options
);
}
}