mirror of
https://github.com/netzbegruenung/user_saml.git
synced 2024-05-03 01:24:52 +02:00
165 lines
4.9 KiB
PHP
165 lines
4.9 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016 Lukas Reschke <lukas@statuscode.ch>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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require_once __DIR__ . '/../3rdparty/vendor/autoload.php';
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// If we run in CLI mode do not setup the app as it can fail the OCC execution
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// since the URLGenerator isn't accessible.
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$cli = false;
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if(OC::$CLI) {
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$cli = true;
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}
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$urlGenerator = \OC::$server->getURLGenerator();
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$l = \OC::$server->getL10N('user_saml');
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$config = \OC::$server->getConfig();
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$request = \OC::$server->getRequest();
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$userSession = \OC::$server->getUserSession();
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$session = \OC::$server->getSession();
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$samlSettings = new \OCA\User_SAML\SAMLSettings(
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$urlGenerator,
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$config,
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$request,
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$session
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);
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$userBackend = new \OCA\User_SAML\UserBackend(
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$config,
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$urlGenerator,
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\OC::$server->getSession(),
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\OC::$server->getDatabaseConnection(),
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\OC::$server->getUserManager(),
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\OC::$server->getGroupManager(),
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$samlSettings
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);
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$userBackend->registerBackends(\OC::$server->getUserManager()->getBackends());
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OC_User::useBackend($userBackend);
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OC_User::handleApacheAuth();
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// Setting up the one login config may fail, if so, do not catch the requests later.
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$returnScript = false;
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$type = '';
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switch($config->getAppValue('user_saml', 'type')) {
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case 'saml':
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try {
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$oneLoginSettings = new \OneLogin_Saml2_Settings($samlSettings->getOneLoginSettingsArray(1));
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} catch (OneLogin_Saml2_Error $e) {
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$returnScript = true;
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}
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$type = 'saml';
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break;
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case 'environment-variable':
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$type = 'environment-variable';
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break;
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}
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if($returnScript === true) {
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return;
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}
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$redirectSituation = false;
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$user = $userSession->getUser();
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if ($user !== null) {
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$enabled = $user->isEnabled();
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if ($enabled === false) {
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$targetUrl = $urlGenerator->linkToRouteAbsolute(
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'user_saml.SAML.genericError',
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[
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'message' => $l->t('This user account is disabled, please contact your administrator.')
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]
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);
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header('Location: '.$targetUrl);
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exit();
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}
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}
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// All requests that are not authenticated and match against the "/login" route are
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// redirected to the SAML login endpoint
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if(!$cli &&
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!$userSession->isLoggedIn() &&
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\OC::$server->getRequest()->getPathInfo() === '/login' &&
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$type !== '') {
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$params = $request->getParams();
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if (isset($params['direct'])) {
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return;
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}
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$redirectSituation = true;
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}
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// If a request to OCS or remote.php is sent by the official desktop clients it can
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// be intercepted as it supports SAML. All other clients don't yet and thus we
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// require the usage of application specific passwords there.
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//
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// However, it is an opt-in setting to use SAML for the desktop clients. For better
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// UX (users don't have to reauthenticate) we default to disallow the access via
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// SAML at the moment.
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$useSamlForDesktopClients = $config->getAppValue('user_saml', 'general-use_saml_auth_for_desktop', '0');
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if($useSamlForDesktopClients === '1') {
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$currentUrl = substr(explode('?',$request->getRequestUri(), 2)[0], strlen(\OC::$WEBROOT));
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if(substr($currentUrl, 0, 12) === '/remote.php/' || substr($currentUrl, 0, 5) === '/ocs/') {
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if(!$userSession->isLoggedIn() && $request->isUserAgent([\OC\AppFramework\Http\Request::USER_AGENT_OWNCLOUD_DESKTOP])) {
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$redirectSituation = true;
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}
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}
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}
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$multipleUserBackEnds = $samlSettings->allowMultipleUserBackEnds();
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$configuredIdps = $samlSettings->getListOfIdps();
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$showLoginOptions = $multipleUserBackEnds || count($configuredIdps) > 1;
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if ($redirectSituation === true && $showLoginOptions) {
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$params = $request->getParams();
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$redirectUrl = '';
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if(isset($params['redirect_url'])) {
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$redirectUrl = $params['redirect_url'];
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}
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$targetUrl = $urlGenerator->linkToRouteAbsolute(
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'user_saml.SAML.selectUserBackEnd',
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[
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'redirectUrl' => $redirectUrl
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]
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);
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header('Location: '.$targetUrl);
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exit();
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}
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if($redirectSituation === true) {
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$params = $request->getParams();
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$originalUrl = '';
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if(isset($params['redirect_url'])) {
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$originalUrl = $urlGenerator->getAbsoluteURL($params['redirect_url']);
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}
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$csrfToken = \OC::$server->getCsrfTokenManager()->getToken();
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$targetUrl = $urlGenerator->linkToRouteAbsolute(
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'user_saml.SAML.login',
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[
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'requesttoken' => $csrfToken->getEncryptedValue(),
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'originalUrl' => $originalUrl,
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]
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);
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header('Location: '.$targetUrl);
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exit();
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}
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