38 lines
1.2 KiB
PHP
38 lines
1.2 KiB
PHP
<?php
|
|
/**
|
|
* Implementation of WebFinger resource discovery (RFC7033)
|
|
*
|
|
* @category Discovery
|
|
* @package GNUsocial
|
|
* @author Mikael Nordfeldth <mmn@hethane.se>
|
|
* @copyright 2013 Free Software Foundation, Inc.
|
|
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
|
|
* @link http://status.net/
|
|
*/
|
|
class LRDDMethod_WebFinger extends LRDDMethod
|
|
{
|
|
/**
|
|
* Simply returns the WebFinger URL over HTTPS at the uri's domain:
|
|
* https://{domain}/.well-known/webfinger?resource={uri}
|
|
*/
|
|
public function discover($uri)
|
|
{
|
|
if (!Discovery::isAcct($uri)) {
|
|
throw new Exception('Bad resource URI: '.$uri);
|
|
}
|
|
list($user, $domain) = explode('@', parse_url($uri, PHP_URL_PATH));
|
|
if (!filter_var($domain, FILTER_VALIDATE_IP)
|
|
&& !filter_var(gethostbyname($domain), FILTER_VALIDATE_IP)) {
|
|
throw new Exception('Bad resource host.');
|
|
}
|
|
|
|
$link = new XML_XRD_Element_Link(
|
|
Discovery::LRDD_REL,
|
|
'https://' . $domain . '/.well-known/webfinger?resource={uri}',
|
|
Discovery::JRD_MIMETYPE,
|
|
true); //isTemplate
|
|
|
|
return array($link);
|
|
}
|
|
}
|