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<?php |
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/** |
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* Copyright (C) 2016 SURFnet. |
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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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namespace SURFnet\VPN\Common\Http; |
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use SURFnet\VPN\Common\HttpClient\ServerClient; |
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use SURFnet\VPN\Common\TplInterface; |
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use SURFnet\VPN\Common\Http\Exception\HttpException; |
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class TwoFactorHook implements BeforeHookInterface |
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{ |
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/** @var SessionInterface */ |
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private $session; |
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/** @var \SURFnet\VPN\Common\TplInterface */ |
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private $tpl; |
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/** @var \SURFnet\VPN\Common\HttpClient\ServerClient */ |
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private $serverClient; |
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public function __construct(SessionInterface $session, TplInterface $tpl, ServerClient $serverClient) |
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{ |
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$this->session = $session; |
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$this->tpl = $tpl; |
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$this->serverClient = $serverClient; |
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} |
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public function executeBefore(Request $request, array $hookData) |
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{ |
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if (!array_key_exists('auth', $hookData)) { |
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throw new HttpException('authentication hook did not run before', 500); |
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} |
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$userId = $hookData['auth']; |
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if ($this->session->has('_two_factor_verified')) { |
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if ($userId !== $this->session->get('_two_factor_verified')) { |
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throw new HttpException('two-factor code not bound to authenticated user', 400); |
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} |
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return true; |
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} |
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// some URIs are allowed as they are used for either logging in, or |
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// verifying the OTP key |
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$allowedUris = [ |
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'/_form/auth/verify', |
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'/_form/auth/logout', |
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'/_two_factor/auth/verify', |
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]; |
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if (in_array($request->getPathInfo(), $allowedUris) && 'POST' === $request->getRequestMethod()) { |
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return false; |
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} |
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// check if the user is enrolled for 2FA, if not we are fine, for this |
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// session we assume we are verified! |
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if (!$this->serverClient->hasOtpSecret($userId)) { |
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$this->session->set('_two_factor_verified', $userId); |
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return false; |
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} |
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// any other URL, enforce 2FA |
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$response = new Response(200, 'text/html'); |
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$response->setBody( |
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$this->tpl->render( |
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'twoFactorAuthentication', |
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[ |
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'_two_factor_auth_invalid_key' => false, |
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'_two_factor_auth_redirect_to' => $request->getUri(), |
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] |
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) |
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); |
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return $response; |
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} |
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} |
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eduvpn /
vpn-lib-common
