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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\RequestHandlerInterface; |
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use TYPO3\CMS\Backend\FrontendBackendUserAuthentication; |
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use TYPO3\CMS\Core\Authentication\BackendUserAuthentication; |
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use TYPO3\CMS\Core\Authentication\Mfa\MfaRequiredException; |
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use TYPO3\CMS\Core\Context\Context; |
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use TYPO3\CMS\Core\Core\Bootstrap; |
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use TYPO3\CMS\Core\Http\NormalizedParams; |
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use TYPO3\CMS\Core\Localization\LanguageServiceFactory; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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/** |
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* This middleware authenticates a Backend User (be_user) (pre)-viewing a frontend page. |
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* |
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* This middleware also ensures that $GLOBALS['LANG'] is available, however it is possible that |
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* a different middleware later-on might unset the BE_USER as he/she is not allowed to preview a certain |
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* page due to rights management. As this can only happen once the page ID is resolved, this will happen |
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* after the routing middleware. |
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*/ |
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class BackendUserAuthenticator extends \TYPO3\CMS\Core\Middleware\BackendUserAuthenticator |
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{ |
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private LanguageServiceFactory $languageServiceFactory; |
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public function __construct( |
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Context $context, |
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LanguageServiceFactory $languageServiceFactory |
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) { |
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parent::__construct($context); |
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$this->languageServiceFactory = $languageServiceFactory; |
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} |
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/** |
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* Creates a backend user authentication object, tries to authenticate a user |
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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 $handler): ResponseInterface |
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{ |
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// Initializing a possible logged-in Backend User |
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// If the backend cookie is set, |
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// we proceed and check if a backend user is logged in. |
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$backendUserObject = null; |
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if (isset($request->getCookieParams()[BackendUserAuthentication::getCookieName()])) { |
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$backendUserObject = $this->initializeBackendUser($request); |
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} |
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$GLOBALS['BE_USER'] = $backendUserObject; |
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// Load specific dependencies which are necessary for a valid Backend User |
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// like $GLOBALS['LANG'] for labels in the language of the BE User, the router, and ext_tables.php for all modules |
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// So things like Frontend Editing and Admin Panel can use this for generating links to the TYPO3 Backend. |
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if ($GLOBALS['BE_USER'] instanceof FrontendBackendUserAuthentication) { |
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$GLOBALS['LANG'] = $this->languageServiceFactory->createFromUserPreferences($GLOBALS['BE_USER']); |
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Bootstrap::loadExtTables(); |
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$this->setBackendUserAspect($GLOBALS['BE_USER']); |
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} |
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$response = $handler->handle($request); |
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// If, when building the response, the user is still available, then ensure that the headers are sent properly |
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if ($this->context->getAspect('backend.user')->isLoggedIn()) { |
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return $this->applyHeadersToResponse($response); |
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} |
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return $response; |
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} |
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/** |
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* Creates the backend user object and returns it. |
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* |
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* @param ServerRequestInterface $request |
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* @return FrontendBackendUserAuthentication|null the backend user object or null if there was no valid user found |
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* @throws \TYPO3\CMS\Core\Exception |
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*/ |
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protected function initializeBackendUser(ServerRequestInterface $request) |
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{ |
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// New backend user object |
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$backendUserObject = GeneralUtility::makeInstance(FrontendBackendUserAuthentication::class); |
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try { |
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$backendUserObject->start(); |
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} catch (MfaRequiredException $e) { |
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// Do nothing, as the user is not fully authenticated - has not |
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// passed required multi-factor authentication - via the backend. |
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return null; |
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} |
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$backendUserObject->unpack_uc(); |
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if (!empty($backendUserObject->user['uid'])) { |
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$this->setBackendUserAspect($backendUserObject, (int)$backendUserObject->user['workspace_id']); |
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$backendUserObject->fetchGroupData(); |
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} |
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// Unset the user initialization if any setting / restriction applies |
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if (!$this->isAuthenticated($backendUserObject, $request->getAttribute('normalizedParams'))) { |
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$backendUserObject = null; |
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$this->setBackendUserAspect(null); |
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} |
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return $backendUserObject; |
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} |
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/** |
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* Implementing the access checks that the TYPO3 CMS bootstrap script does before a user is ever logged in. |
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* |
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* @param FrontendBackendUserAuthentication $user |
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* @param NormalizedParams $normalizedParams |
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* @return bool Returns TRUE if access is OK |
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*/ |
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protected function isAuthenticated(FrontendBackendUserAuthentication $user, NormalizedParams $normalizedParams) |
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{ |
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// Check IP |
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$ipMask = trim($GLOBALS['TYPO3_CONF_VARS']['BE']['IPmaskList'] ?? ''); |
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if ($ipMask && !GeneralUtility::cmpIP($normalizedParams->getRemoteAddress(), $ipMask)) { |
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return false; |
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} |
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// Check SSL (https) |
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if ((bool)$GLOBALS['TYPO3_CONF_VARS']['BE']['lockSSL'] && !$normalizedParams->isHttps()) { |
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return false; |
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} |
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return $user->backendCheckLogin(); |
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} |
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} |
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TYPO3 /
TYPO3.CMS
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