social/lib/webfinger.php

144 wiersze
3.7 KiB
PHP

<?php
declare(strict_types=1);
/**
* Nextcloud - Social Support
*
* This file is licensed under the Affero General Public License version 3 or
* later. See the COPYING file.
*
* @author Maxence Lange <maxence@artificial-owl.com>
* @copyright 2018, Maxence Lange <maxence@artificial-owl.com>
* @license GNU AGPL version 3 or any later version
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Social;
use Exception;
use OC;
use OCA\Social\Exceptions\SocialAppConfigException;
use OCA\Social\Service\CacheActorService;
use OCA\Social\Service\ConfigService;
use OCA\Social\Service\FediverseService;
use OCP\AppFramework\QueryException;
require_once(__DIR__ . '/../appinfo/autoload.php');
if (!array_key_exists('resource', $_GET)) {
echo 'missing resource';
exit();
}
$subject = $_GET['resource'];
$urlGenerator = OC::$server->getURLGenerator();
$type = '';
if (strpos($subject, 'acct:') === 0) {
list($type, $account) = explode(':', $subject, 2);
$type .= ':';
} else {
$account = $subject;
}
list($username, $instance) = explode('@', $account);
try {
/** @var CacheActorService $cacheActorService */
$cacheActorService = OC::$server->query(CacheActorService::class);
/** @var FediverseService $fediverseService */
$fediverseService = OC::$server->query(FediverseService::class);
/** @var ConfigService $configService */
$configService = OC::$server->query(ConfigService::class);
} catch (QueryException $e) {
OC::$server->getLogger()
->log(1, 'QueryException - ' . $e->getMessage());
http_response_code(404);
exit;
}
try {
$fediverseService->jailed();
if ($configService->getSocialAddress() !== $instance) {
if ($configService->getCloudHost() === $instance) {
$instance = $configService->getSocialAddress();
} else {
throw new Exception(
'instance is ' . $instance . ', expected ' . $configService->getSocialAddress()
. ' or ' . $configService->getCloudHost()
);
}
}
$cacheActorService->getFromLocalAccount($username);
} catch (Exception $e) {
if ($type !== '') {
OC::$server->getLogger()
->log(1, 'Exception on webfinger/fromAccount - ' . $e->getMessage());
http_response_code(404);
exit;
}
try {
$fromId = $cacheActorService->getFromId($subject);
$instance = $configService->getSocialAddress();
$username = $fromId->getPreferredUsername();
} catch (Exception $e) {
OC::$server->getLogger()
->log(1, 'Exception on webfinger/fromId - ' . $e->getMessage());
http_response_code(404);
exit;
}
}
try {
$href = $configService->getSocialUrl() . '@' . $username;
} catch (SocialAppConfigException $e) {
http_response_code(404);
exit;
}
if (substr($href, -1) === '/') {
$href = substr($href, 0, -1);
}
$finger = [
'subject' => $type . $username . '@' . $instance,
'links' => [
[
'rel' => 'self',
'type' => 'application/activity+json',
'href' => $href
],
[
'rel' => 'http://ostatus.org/schema/1.0/subscribe',
'template' => urldecode(
$href = $urlGenerator->linkToRouteAbsolute(
'social.OStatus.subscribe', ['uri' => '{uri}']
)
)
]
]
];
header('Content-type: application/json');
echo json_encode($finger);