gnu-social/plugins/WebFinger/WebFingerPlugin.php
Stephen Paul Weber fae7bc0bc0 Add all link headers, not just the last one
Given the way Link headers work, it does not make any sense to
just replace all other ones.  Especially when we ourselves are adding
in a loop.
2015-10-25 18:42:37 +00:00

168 lines
6.0 KiB
PHP

<?php
/*
* GNU Social - a federating social network
* Copyright (C) 2013, Free Software Foundation, Inc.
*
* 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/>.
*/
/**
* Implements WebFinger for GNU Social, as well as support for the
* '.well-known/host-meta' resource.
*
* Depends on: LRDD plugin
*
* @package GNUsocial
* @author Mikael Nordfeldth <mmn@hethane.se>
*/
if (!defined('GNUSOCIAL')) { exit(1); }
class WebFingerPlugin extends Plugin
{
const OAUTH_ACCESS_TOKEN_REL = 'http://apinamespace.org/oauth/access_token';
const OAUTH_REQUEST_TOKEN_REL = 'http://apinamespace.org/oauth/request_token';
const OAUTH_AUTHORIZE_REL = 'http://apinamespace.org/oauth/authorize';
public $http_alias = false;
public function initialize()
{
common_config_set('webfinger', 'http_alias', $this->http_alias);
}
public function onRouterInitialized($m)
{
$m->connect('.well-known/host-meta', array('action' => 'hostmeta'));
$m->connect('.well-known/host-meta.:format',
array('action' => 'hostmeta',
'format' => '(xml|json)'));
// the resource GET parameter can be anywhere, so don't mention it here
$m->connect('.well-known/webfinger', array('action' => 'webfinger'));
$m->connect('.well-known/webfinger.:format',
array('action' => 'webfinger',
'format' => '(xml|json)'));
$m->connect('main/ownerxrd', array('action' => 'ownerxrd'));
return true;
}
public function onLoginAction($action, &$login)
{
switch ($action) {
case 'hostmeta':
case 'webfinger':
$login = true;
return false;
}
return true;
}
public function onStartGetProfileAcctUri(Profile $profile, &$acct)
{
$wfr = new WebFingerResource_Profile($profile);
try {
$acct = $wfr->reconstructAcct();
} catch (Exception $e) {
return true;
}
return false;
}
public function onEndGetWebFingerResource($resource, WebFingerResource &$target=null, array $args=array())
{
$profile = null;
if (Discovery::isAcct($resource)) {
$parts = explode('@', substr(urldecode($resource), 5)); // 5 is strlen of 'acct:'
if (count($parts) == 2) {
list($nick, $domain) = $parts;
if ($domain === common_config('site', 'server')) {
$nick = common_canonical_nickname($nick);
$user = User::getKV('nickname', $nick);
if (!($user instanceof User)) {
throw new NoSuchUserException(array('nickname'=>$nick));
}
$profile = $user->getProfile();
} else {
throw new Exception(_('Remote profiles not supported via WebFinger yet.'));
}
}
} else {
$user = User::getKV('uri', $resource);
if ($user instanceof User) {
$profile = $user->getProfile();
} else {
// try and get it by profile url
$profile = Profile::getKV('profileurl', $resource);
}
}
if ($profile instanceof Profile) {
$target = new WebFingerResource_Profile($profile);
return false; // We got our target, stop handler execution
}
$notice = Notice::getKV('uri', $resource);
if ($notice instanceof Notice) {
$target = new WebFingerResource_Notice($notice);
return false;
}
return true;
}
public function onStartHostMetaLinks(array &$links)
{
foreach (Discovery::supportedMimeTypes() as $type) {
$links[] = new XML_XRD_Element_Link(Discovery::LRDD_REL,
common_local_url('webfinger') . '?resource={uri}',
$type,
true); // isTemplate
}
// OAuth connections
$links[] = new XML_XRD_Element_link(self::OAUTH_ACCESS_TOKEN_REL, common_local_url('ApiOAuthAccessToken'));
$links[] = new XML_XRD_Element_link(self::OAUTH_REQUEST_TOKEN_REL, common_local_url('ApiOAuthRequestToken'));
$links[] = new XML_XRD_Element_link(self::OAUTH_AUTHORIZE_REL, common_local_url('ApiOAuthAuthorize'));
}
/**
* Add a link header for LRDD Discovery
*/
public function onStartShowHTML($action)
{
if ($action instanceof ShowstreamAction) {
$acct = 'acct:'. $action->getTarget()->getNickname() .'@'. common_config('site', 'server');
$url = common_local_url('webfinger') . '?resource='.$acct;
foreach (array(Discovery::JRD_MIMETYPE, Discovery::XRD_MIMETYPE) as $type) {
header('Link: <'.$url.'>; rel="'. Discovery::LRDD_REL.'"; type="'.$type.'"', false);
}
}
}
public function onPluginVersion(array &$versions)
{
$versions[] = array('name' => 'WebFinger',
'version' => GNUSOCIAL_VERSION,
'author' => 'Mikael Nordfeldth',
'homepage' => 'http://www.gnu.org/software/social/',
// TRANS: Plugin description.
'rawdescription' => _m('Adds WebFinger lookup to GNU Social'));
return true;
}
}