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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the TYPO3 CMS project. |
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* |
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* It is free software; you can redistribute it and/or modify it under |
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* the terms of the GNU General Public License, either version 2 |
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* of the License, or any later version. |
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* |
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* For the full copyright and license information, please read the |
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* LICENSE.txt file that was distributed with this source code. |
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* |
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* The TYPO3 project - inspiring people to share! |
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*/ |
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namespace TYPO3\CMS\Frontend\Middleware; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Server\MiddlewareInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use TYPO3\CMS\Core\Context\Context; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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use TYPO3\CMS\Frontend\Authentication\FrontendUserAuthentication; |
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/** |
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* This middleware authenticates a Frontend User (fe_users). |
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*/ |
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class FrontendUserAuthenticator implements MiddlewareInterface |
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{ |
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/** |
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* @var Context |
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*/ |
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protected $context; |
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public function __construct(Context $context) |
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{ |
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$this->context = $context; |
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} |
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/** |
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* Creates a frontend user authentication object, tries to authenticate a user and stores |
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* it in the current request as attribute. |
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* |
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* @param ServerRequestInterface $request |
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* @param RequestHandlerInterface $handler |
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* @return ResponseInterface |
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*/ |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
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{ |
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$frontendUser = GeneralUtility::makeInstance(FrontendUserAuthentication::class); |
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// List of page IDs where to look for frontend user records |
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$pid = $request->getParsedBody()['pid'] ?? $request->getQueryParams()['pid'] ?? 0; |
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if ($pid) { |
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$frontendUser->checkPid_value = implode(',', GeneralUtility::intExplode(',', $pid)); |
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} |
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// Check if a session is transferred, and update the cookie parameters |
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$frontendSessionKey = $request->getParsedBody()['FE_SESSION_KEY'] ?? $request->getQueryParams()['FE_SESSION_KEY'] ?? ''; |
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if ($frontendSessionKey) { |
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$request = $this->transferFrontendUserSession($frontendUser, $request, $frontendSessionKey); |
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} |
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// Authenticate now |
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$frontendUser->start(); |
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$frontendUser->unpack_uc(); |
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// no matter if we have an active user we try to fetch matching groups which can |
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// be set without an user (simulation for instance!) |
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$frontendUser->fetchGroupData(); |
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// Register the frontend user as aspect and within the request |
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$userAspect = $frontendUser->createUserAspect(); |
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$this->context->setAspect('frontend.user', $userAspect); |
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$request = $request->withAttribute('frontend.user', $frontendUser); |
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$response = $handler->handle($request); |
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// Store session data for fe_users if it still exists |
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if ($frontendUser instanceof FrontendUserAuthentication) { |
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$frontendUser->storeSessionData(); |
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if ($frontendUser->sendNoCacheHeaders) { |
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$response = $this->applyHeadersToResponse($response); |
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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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* It's possible to transfer a frontend user session via a GET/POST parameter 'FE_SESSION_KEY'. |
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* In the future, this logic should be moved into the FrontendUserAuthentication object directly, |
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* but only if FrontendUserAuthentication does not request superglobals (like $_COOKIE) anymore. |
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* |
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* @param FrontendUserAuthentication $frontendUser |
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* @param ServerRequestInterface $request |
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* @param string $frontendSessionKey |
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* @return ServerRequestInterface |
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*/ |
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protected function transferFrontendUserSession( |
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FrontendUserAuthentication $frontendUser, |
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ServerRequestInterface $request, |
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string $frontendSessionKey |
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): ServerRequestInterface { |
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[$sessionId, $hash] = explode('-', $frontendSessionKey); |
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// If the session key hash check is OK, set the cookie |
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if (hash_equals(md5($sessionId . '/' . $GLOBALS['TYPO3_CONF_VARS']['SYS']['encryptionKey']), (string)$hash)) { |
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$cookieName = FrontendUserAuthentication::getCookieName(); |
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// keep the global cookie overwriting for now, as long as FrontendUserAuthentication does not |
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// use the request object for fetching the cookie information. |
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$_COOKIE[$cookieName] = $sessionId; |
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if (isset($_SERVER['HTTP_COOKIE'])) { |
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// See https://forge.typo3.org/issues/27740 |
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$_SERVER['HTTP_COOKIE'] .= ';' . $cookieName . '=' . $sessionId; |
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} |
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// Add the cookie to the Server Request object |
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$cookieParams = $request->getCookieParams(); |
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$cookieParams[$cookieName] = $sessionId; |
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$request = $request->withCookieParams($cookieParams); |
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$frontendUser->forceSetCookie = true; |
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$frontendUser->dontSetCookie = false; |
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} |
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return $request; |
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} |
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/** |
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* Adding headers to the response to avoid caching on the client side. |
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* These headers will override any previous headers of these names sent. |
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* Get the http headers to be sent if an authenticated user is available, |
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* in order to disallow browsers to store the response on the client side. |
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* |
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* @param ResponseInterface $response |
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* @return ResponseInterface the modified response object. |
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*/ |
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protected function applyHeadersToResponse(ResponseInterface $response): ResponseInterface |
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{ |
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$headers = [ |
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'Expires' => 0, |
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'Last-Modified' => gmdate('D, d M Y H:i:s') . ' GMT', |
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'Cache-Control' => 'no-cache, must-revalidate', |
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'Pragma' => 'no-cache' |
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]; |
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foreach ($headers as $headerName => $headerValue) { |
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$response = $response->withHeader($headerName, (string)$headerValue); |
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} |
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return $response; |
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} |
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} |
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TYPO3 /
TYPO3.CMS
