friendica/src/Module/Security/OpenID.php

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2019-12-27 21:16:40 +00:00
<?php
namespace Friendica\Module\Security;
use Friendica\App\Authentication;
use Friendica\App\BaseURL;
use Friendica\BaseModule;
use Friendica\Core\Config\Configuration;
use Friendica\Core\L10n\L10n;
use Friendica\Core\Session\ISession;
use Friendica\Database\Database;
use Friendica\Util\Strings;
use LightOpenID;
use Psr\Log\LoggerInterface;
/**
* Performs an login with OpenID
*/
class OpenID extends BaseModule
{
public static function init(array $parameters = [])
{
/** @var Configuration $config */
$config = self::getClass(Configuration::class);
/** @var BaseURL $baseUrl */
$baseUrl = self::getClass(BaseURL::class);
if ($config->get('system', 'no_openid')) {
$baseUrl->redirect();
}
}
public static function content(array $parameters = [])
{
/** @var LoggerInterface $logger */
$logger = self::getClass(LoggerInterface::class);
$logger->debug('mod_openid.', ['request' => $_REQUEST]);
/** @var ISession $session */
$session = self::getClass(ISession::class);
if (!empty($_GET['openid_mode']) && !empty($session->get('openid'))) {
/** @var BaseURL $baseUrl */
$baseUrl = self::getClass(BaseURL::class);
$openid = new LightOpenID($baseUrl->getHostname());
/** @var L10n $l10n */
$l10n = self::getClass(L10n::class);
if ($openid->validate()) {
$authId = $openid->data['openid_identity'];
if (empty($authId)) {
$logger->info($l10n->t('OpenID protocol error. No ID returned'));
$baseUrl->redirect();
}
// NOTE: we search both for normalised and non-normalised form of $authid
// because the normalization step was removed from setting
// mod/settings.php in 8367cad so it might have left mixed
// records in the user table
//
$condition = ['blocked' => false, 'account_expired' => false, 'account_removed' => false, 'verified' => true,
'openid' => [$authId, Strings::normaliseOpenID($authId)]];
$dba = self::getClass(Database::class);
$user = $dba->selectFirst('user', [], $condition);
if ($dba->isResult($user)) {
// successful OpenID login
$session->remove('openid');
/** @var Authentication $auth */
$auth = self::getClass(Authentication::class);
$auth->setForUser(self::getApp(), $user, true, true);
// just in case there was no return url set
// and we fell through
$baseUrl->redirect();
}
// Successful OpenID login - but we can't match it to an existing account.
$session->remove('register');
$session->set('openid_attributes', $openid->getAttributes());
$session->set('openid_identity', $authId);
// Detect the server URL
$open_id_obj = new LightOpenID($baseUrl->getHostName());
$open_id_obj->identity = $authId;
$session->set('openid_server', $open_id_obj->discover($open_id_obj->identity));
$config = self::getClass(Configuration::class);
if (intval($config->get('config', 'register_policy')) === \Friendica\Module\Register::CLOSED) {
notice($l10n->t('Account not found. Please login to your existing account to add the OpenID to it.'));
} else {
notice($l10n->t('Account not found. Please register a new account or login to your existing account to add the OpenID to it.'));
}
$baseUrl->redirect('login');
}
}
}
}