99 lines
3.8 KiB
PHP
99 lines
3.8 KiB
PHP
<?php
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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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* ActivityPub implementation for GNU social
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*
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* @package GNUsocial
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @copyright 2018-2019 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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* @link http://www.gnu.org/software/social/
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*/
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defined('GNUSOCIAL') || die();
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/**
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* ActivityPub error representation
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*
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* @category Plugin
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* @package GNUsocial
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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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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class Activitypub_follow
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{
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/**
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* Generates an ActivityPub representation of a subscription
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*
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @param string $actor
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* @param string $object
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* @param string|null $id Activity id, to be used when generating for an Accept Activity
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* @return array pretty array to be used in a response
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*/
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public static function follow_to_array(string $actor, string $object, ?string $id = null): array
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{
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if ($id === null) {
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$id = common_root_url().'follow_from_'.urlencode($actor).'_to_'.urlencode($object);
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}
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$res = [
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'@context' => 'https://www.w3.org/ns/activitystreams',
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'id' => $id,
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'type' => 'Follow',
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'actor' => $actor,
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'object' => $object
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];
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return $res;
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}
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/**
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* Handles a Follow Activity received by our inbox.
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*
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* @param Profile $actor_profile Remote Actor
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* @param string $object Local Actor
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* @param string $id Activity id
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* @throws AlreadyFulfilledException
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* @throws HTTP_Request2_Exception
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* @throws NoProfileException
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* @throws ServerException
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public static function follow(Profile $actor_profile, string $object, string $id)
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{
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// Get Actor's Aprofile
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$actor_aprofile = Activitypub_profile::from_profile($actor_profile);
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// Get Object profile
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$object_profile = new Activitypub_explorer;
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$object_profile = $object_profile->lookup($object)[0];
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if (!Subscription::exists($actor_profile, $object_profile)) {
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Subscription::start($actor_profile, $object_profile);
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Activitypub_profile::subscribeCacheUpdate($actor_profile, $object_profile);
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common_debug('ActivityPubPlugin: Accepted Follow request from '.ActivityPubPlugin::actor_uri($actor_profile).' to '.$object);
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} else {
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common_debug('ActivityPubPlugin: Received a repeated Follow request from '.ActivityPubPlugin::actor_uri($actor_profile).' to '.$object);
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}
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// Notify remote instance that we have accepted their request
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common_debug('ActivityPubPlugin: Notifying remote instance that we have accepted their Follow request request from '.ActivityPubPlugin::actor_uri($actor_profile).' to '.$object);
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$postman = new Activitypub_postman($object_profile, [$actor_aprofile]);
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$postman->accept_follow($id);
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}
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}
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