gnu-social/plugins/OpenID/actions/openidserver.php

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<?php
// 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/>.
/**
* Settings for OpenID
*
* @category Settings
* @package GNUsocial
* @author Craig Andrews <candrews@integralblue.com>
* @copyright 2008-2009 StatusNet, Inc.
* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
defined('GNUSOCIAL') || die();
require_once INSTALLDIR . '/plugins/OpenID/openid.php';
/**
* Settings for OpenID
*
* Lets users add, edit and delete OpenIDs from their account
*
* @category Settings
* @package GNUsocial
* @author Craig Andrews <candrews@integralblue.com>
* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class OpenidserverAction extends Action
{
public $oserver;
public function prepare(array $args = [])
{
parent::prepare($args);
$this->oserver = oid_server();
return true;
}
public function handle()
{
parent::handle();
$request = $this->oserver->decodeRequest();
if (in_array($request->mode, array('checkid_immediate',
'checkid_setup'))) {
if (!$this->scoped instanceof Profile) {
if ($request->immediate) {
//cannot prompt the user to login in immediate mode, so answer false
$response = $this->generateDenyResponse($request);
} else {
// Go log in, and then come back.
//
// Note: 303 redirect rather than 307 to avoid
// prompting user for form resubmission if we
// were POSTed here.
common_set_returnto($_SERVER['REQUEST_URI']);
common_redirect(common_local_url('login'), 303);
}
} elseif (
in_array($request->identity, $this->scoped->getAliases())
|| $request->idSelect()
) {
$user_openid_trustroot = User_openid_trustroot::pkeyGet([
'user_id' => $this->scoped->getID(),
'trustroot' => $request->trust_root,
]);
if (empty($user_openid_trustroot)) {
if ($request->immediate) {
//cannot prompt the user to trust this trust root in immediate mode, so answer false
$response = $this->generateDenyResponse($request);
} else {
common_ensure_session();
$_SESSION['openid_trust_root'] = $request->trust_root;
$allowResponse = $this->generateAllowResponse($request, $this->scoped);
$this->oserver->encodeResponse($allowResponse); //sign the response
$denyResponse = $this->generateDenyResponse($request);
$this->oserver->encodeResponse($denyResponse); //sign the response
$_SESSION['openid_allow_url'] = $allowResponse->encodeToUrl();
$_SESSION['openid_deny_url'] = $denyResponse->encodeToUrl();
// Ask the user to trust this trust root...
//
// Note: 303 redirect rather than 307 to avoid
// prompting user for form resubmission if we
// were POSTed here.
common_redirect(common_local_url('openidtrust'), 303);
}
} else {
//user has previously authorized this trust root
$response = $this->generateAllowResponse($request, $this->scoped);
}
} elseif ($request->immediate) {
$response = $this->generateDenyResponse($request);
} else {
//invalid
$this->clientError(sprintf(
// TRANS: OpenID plugin client error given trying to add an unauthorised OpenID to a user (403).
// TRANS: %s is a request identity.
_m('You are not authorized to use the identity %s.'),
$request->identity
), 403);
}
} else {
$response = $this->oserver->handleRequest($request);
}
if ($response) {
$response = $this->oserver->encodeResponse($response);
if ($response->code != AUTH_OPENID_HTTP_OK) {
http_response_code($response->code);
}
if ($response->headers) {
foreach ($response->headers as $k => $v) {
header("$k: $v");
}
}
$this->raw($response->body);
} else {
$this->clientError(
// TRANS: OpenID plugin client error given when not getting a response for a given OpenID provider (500).
_m('Just an OpenID provider. Nothing to see here, move along...'),
500
);
}
}
public function generateAllowResponse($request, Profile $profile)
{
$response = $request->answer(true, null, $profile->getUrl());
$user = $profile->getUser();
$sreg_data = [
'fullname' => $profile->getFullname(),
'nickname' => $profile->getNickname(),
'email' => $user->email, // FIXME: Should we make the email optional?
'language' => $user->language,
'timezone' => $user->timezone,
];
$sreg_request = Auth_OpenID_SRegRequest::fromOpenIDRequest($request);
$sreg_response = Auth_OpenID_SRegResponse::extractResponse(
$sreg_request,
$sreg_data
);
$sreg_response->toMessage($response->fields);
return $response;
}
public function generateDenyResponse($request)
{
$response = $request->answer(false);
return $response;
}
}