135 lines
4.3 KiB
PHP
135 lines
4.3 KiB
PHP
<?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();
|
|
|
|
/**
|
|
* Actor's Followers Collection
|
|
*
|
|
* @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 apActorFollowersAction extends ManagedAction
|
|
{
|
|
protected $needLogin = false;
|
|
protected $canPost = true;
|
|
|
|
/**
|
|
* Handle the Followers Collection request
|
|
*
|
|
* @return void
|
|
* @throws Exception
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
|
*/
|
|
protected function handle()
|
|
{
|
|
try {
|
|
$profile = Profile::getByID($this->trimmed('id'));
|
|
$profile_id = $profile->getID();
|
|
} catch (Exception $e) {
|
|
ActivityPubReturn::error('Invalid Actor URI.', 404);
|
|
}
|
|
|
|
if (!$profile->isLocal()) {
|
|
ActivityPubReturn::error("This is not a local user.", 403);
|
|
}
|
|
|
|
if (!isset($_GET["page"])) {
|
|
$page = 0;
|
|
} else {
|
|
$page = intval($this->trimmed('page'));
|
|
}
|
|
|
|
if ($page < 0) {
|
|
ActivityPubReturn::error('Invalid page number.');
|
|
}
|
|
|
|
$since = ($page - 1) * PROFILES_PER_MINILIST;
|
|
$limit = PROFILES_PER_MINILIST;
|
|
|
|
/* Calculate total items */
|
|
$total_subs = Activitypub_profile::subscriberCount($profile);
|
|
$total_pages = ceil($total_subs / PROFILES_PER_MINILIST);
|
|
|
|
$res = [
|
|
'@context' => [
|
|
"https://www.w3.org/ns/activitystreams",
|
|
"https://w3id.org/security/v1",
|
|
],
|
|
'id' => common_local_url('apActorFollowers', ['id' => $profile_id]).(($page != 0) ? '?page='.$page : ''),
|
|
'type' => ($page == 0 ? 'OrderedCollection' : 'OrderedCollectionPage'),
|
|
'totalItems' => $total_subs
|
|
];
|
|
|
|
if ($page == 0) {
|
|
$res['first'] = common_local_url('apActorFollowers', ['id' => $profile_id]).'?page=1';
|
|
} else {
|
|
$res['orderedItems'] = $this->generate_followers($profile, $since, $limit);
|
|
$res['partOf'] = common_local_url('apActorFollowers', ['id' => $profile_id]);
|
|
|
|
if ($page+1 < $total_pages) {
|
|
$res['next'] = common_local_url('apActorFollowers', ['id' => $profile_id]).'page='.($page+1 == 1 ? 2 : $page+1);
|
|
}
|
|
|
|
if ($page > 1) {
|
|
$res['prev'] = common_local_url('apActorFollowers', ['id' => $profile_id]).'?page='.($page-1 <= 0 ? 1 : $page-1);
|
|
}
|
|
}
|
|
|
|
ActivityPubReturn::answer($res);
|
|
}
|
|
|
|
/**
|
|
* Generates a list of stalkers for a given profile.
|
|
*
|
|
* @param Profile $profile
|
|
* @param int $since
|
|
* @param int $limit
|
|
* @return array of URIs
|
|
* @throws Exception
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
|
*/
|
|
public static function generate_followers($profile, $since, $limit)
|
|
{
|
|
/* Fetch Followers */
|
|
try {
|
|
$sub = Activitypub_profile::getSubscribers($profile, $since, $limit);
|
|
} catch (NoResultException $e) {
|
|
// Just let the exception go on its merry way
|
|
}
|
|
|
|
/* Get followers' URLs */
|
|
$subs = [];
|
|
foreach ($sub as $s) {
|
|
$subs[] = ActivityPubPlugin::actor_uri($s);
|
|
}
|
|
|
|
return $subs;
|
|
}
|
|
}
|