86 lines
3.0 KiB
PHP
86 lines
3.0 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
namespace Component\FreeNetwork\Util\LrddMethod;
|
||
|
|
|
||
|
|
// 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/>.
|
||
|
|
use App\Core\Log;
|
||
|
|
use Component\FreeNetwork\Util\LrddMethod;
|
||
|
|
use Exception;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Implementation of discovery using host-meta file
|
||
|
|
*
|
||
|
|
* Discovers resource descriptor file for a user by going to the
|
||
|
|
* organization's host-meta file and trying to find a template for LRDD.
|
||
|
|
*
|
||
|
|
* @category Discovery
|
||
|
|
* @package GNUsocial
|
||
|
|
*
|
||
|
|
* @author James Walker <james@status.net>
|
||
|
|
* @copyright 2010 StatusNet, Inc.
|
||
|
|
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
|
||
|
|
*/
|
||
|
|
class LrddMethodHostMeta extends LRDDMethod
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* For RFC6415 and HTTP URIs, fetch the host-meta file
|
||
|
|
* and look for LRDD templates
|
||
|
|
*
|
||
|
|
* @param mixed $uri
|
||
|
|
*/
|
||
|
|
public function discover($uri)
|
||
|
|
{
|
||
|
|
// This is allowed for RFC6415 but not the 'WebFinger' RFC7033.
|
||
|
|
$try_schemes = ['https', 'http'];
|
||
|
|
|
||
|
|
$scheme = mb_strtolower(parse_url($uri, PHP_URL_SCHEME));
|
||
|
|
switch ($scheme) {
|
||
|
|
case 'acct':
|
||
|
|
// We can't use parse_url data for this, since the 'host'
|
||
|
|
// entry is only set if the scheme has '://' after it.
|
||
|
|
$parts = explode('@', parse_url($uri, PHP_URL_PATH), 2);
|
||
|
|
|
||
|
|
if (!Discovery::isAcct($uri) || count($parts) != 2) {
|
||
|
|
throw new Exception('Bad resource URI: ' . $uri);
|
||
|
|
}
|
||
|
|
[, $domain] = $parts;
|
||
|
|
break;
|
||
|
|
case 'http':
|
||
|
|
case 'https':
|
||
|
|
$domain = mb_strtolower(parse_url($uri, PHP_URL_HOST));
|
||
|
|
$try_schemes = [$scheme];
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
throw new Exception('Unable to discover resource descriptor endpoint.');
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($try_schemes as $scheme) {
|
||
|
|
$url = $scheme . '://' . $domain . '/.well-known/host-meta';
|
||
|
|
|
||
|
|
try {
|
||
|
|
$response = self::fetchUrl($url);
|
||
|
|
$this->xrd->loadString($response->getBody());
|
||
|
|
} catch (Exception $e) {
|
||
|
|
Log::debug('LRDD could not load resource descriptor: ' . $url . ' (' . $e->getMessage() . ')');
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
return $this->xrd->links;
|
||
|
|
}
|
||
|
|
|
||
|
|
throw new Exception('Unable to retrieve resource descriptor links.');
|
||
|
|
}
|
||
|
|
}
|