61 lines
2.1 KiB
PHP
61 lines
2.1 KiB
PHP
<?php
|
|
/**
|
|
* 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 StatusNet
|
|
* @author James Walker <james@status.net>
|
|
* @copyright 2010 StatusNet, Inc.
|
|
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
|
|
* @link http://status.net/
|
|
*/
|
|
class LRDDMethod_HostMeta extends LRDDMethod
|
|
{
|
|
/**
|
|
* For RFC6415 and HTTP URIs, fetch the host-meta file
|
|
* and look for LRDD templates
|
|
*/
|
|
public function discover($uri)
|
|
{
|
|
// This is allowed for RFC6415 but not the 'WebFinger' RFC7033.
|
|
$try_schemes = array('https', 'http');
|
|
|
|
$scheme = mb_strtolower(parse_url($uri, PHP_URL_SCHEME));
|
|
switch ($scheme) {
|
|
case 'acct':
|
|
if (!Discovery::isAcct($uri)) {
|
|
throw new Exception('Bad resource URI: '.$uri);
|
|
}
|
|
// We can't use parse_url data for this, since the 'host'
|
|
// entry is only set if the scheme has '://' after it.
|
|
list($user, $domain) = explode('@', parse_url($uri, PHP_URL_PATH));
|
|
break;
|
|
case 'http':
|
|
case 'https':
|
|
$domain = mb_strtolower(parse_url($uri, PHP_URL_HOST));
|
|
$try_schemes = array($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 $e) {
|
|
common_debug('LRDD could not load resource descriptor: '.$url.' ('.$e->getMessage().')');
|
|
continue;
|
|
}
|
|
return $this->xrd->links;
|
|
}
|
|
|
|
throw new Exception('Unable to retrieve resource descriptor links.');
|
|
}
|
|
}
|