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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\Backend\Controller; |
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use Psr\Http\Message\ResponseFactoryInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use TYPO3\CMS\Backend\Authentication\Event\SwitchUserEvent; |
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use TYPO3\CMS\Backend\Routing\UriBuilder; |
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use TYPO3\CMS\Backend\Utility\BackendUtility; |
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use TYPO3\CMS\Core\Authentication\BackendUserAuthentication; |
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use TYPO3\CMS\Core\EventDispatcher\EventDispatcher; |
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use TYPO3\CMS\Core\Session\Backend\SessionBackendInterface; |
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use TYPO3\CMS\Core\Session\SessionManager; |
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use TYPO3\CMS\Core\SysLog\Type; |
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use TYPO3\CMS\Core\Utility\ExtensionManagementUtility; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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/** |
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* @internal This class is a specific Backend controller implementation and is not considered part of the Public TYPO3 API. |
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*/ |
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class SwitchUserController |
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{ |
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protected const RECENT_USERS_LIMIT = 3; |
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protected EventDispatcher $eventDispatcher; |
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protected UriBuilder $uriBuilder; |
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protected ResponseFactoryInterface $responseFactory; |
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protected SessionBackendInterface $sessionBackend; |
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public function __construct( |
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EventDispatcher $eventDispatcher, |
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UriBuilder $uriBuilder, |
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ResponseFactoryInterface $responseFactory |
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) { |
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$this->eventDispatcher = $eventDispatcher; |
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$this->uriBuilder = $uriBuilder; |
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$this->responseFactory = $responseFactory; |
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$this->sessionBackend = GeneralUtility::makeInstance(SessionManager::class)->getSessionBackend('BE'); |
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} |
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/** |
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* Handle switching current user to the requested target user |
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*/ |
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public function switchUserAction(ServerRequestInterface $request): ResponseInterface |
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{ |
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$currentUser = $this->getBackendUserAuthentication(); |
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$targetUserId = (int)($request->getParsedBody()['targetUser'] ?? 0); |
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if (!$targetUserId |
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|| $targetUserId === (int)($currentUser->user[$currentUser->userid_column] ?? 0) |
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|| !$currentUser->isAdmin() |
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|| $currentUser->getOriginalUserIdWhenInSwitchUserMode() !== null |
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) { |
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return $this->jsonResponse(['success' => false]); |
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} |
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$targetUser = BackendUtility::getRecord('be_users', $targetUserId, '*', BackendUtility::BEenableFields('be_users')); |
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if ($targetUser === null) { |
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return $this->jsonResponse(['success' => false]); |
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} |
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if (ExtensionManagementUtility::isLoaded('beuser')) { |
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// Set backend user listing module as starting module if installed |
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$currentUser->uc['startModuleOnFirstLogin'] = 'system_BeuserTxBeuser'; |
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} |
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$currentUser->uc['recentSwitchedToUsers'] = $this->generateListOfMostRecentSwitchedUsers($targetUserId); |
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$currentUser->writeUC(); |
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// Write user switch to log |
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$currentUser->writelog(Type::LOGIN, 2, 0, 1, 'User %s switched to user %s (be_users:%s)', [ |
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$currentUser->user[$currentUser->username_column] ?? '', |
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$targetUser['username'] ?? '', |
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$targetUserId, |
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]); |
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$sessionObject = $currentUser->getSession(); |
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$sessionObject->set('backuserid', (int)($currentUser->user[$currentUser->userid_column] ?? 0)); |
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$sessionRecord = $sessionObject->toArray(); |
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$sessionRecord['ses_userid'] = $targetUserId; |
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$this->sessionBackend->update($sessionObject->getIdentifier(), $sessionRecord); |
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// We must regenerate the internal session so the new ses_userid is present in the userObject |
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$currentUser->enforceNewSessionId(); |
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$event = new SwitchUserEvent( |
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$currentUser->getSession()->getIdentifier(), |
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$targetUser, |
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(array)$currentUser->user |
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); |
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$this->eventDispatcher->dispatch($event); |
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return $this->jsonResponse([ |
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'success' => true, |
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'url' => $this->uriBuilder->buildUriFromRoute('main') |
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]); |
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} |
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/** |
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* Handle exiting the switch user mode |
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*/ |
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public function exitSwitchUserAction(ServerRequestInterface $request): ResponseInterface |
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{ |
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$currentUser = $this->getBackendUserAuthentication(); |
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if ($currentUser->getOriginalUserIdWhenInSwitchUserMode() === null) { |
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return $this->jsonResponse(['success' => false]); |
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} |
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$sessionObject = $currentUser->getSession(); |
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$originalUser = (int)$sessionObject->get('backuserid'); |
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$sessionObject->set('backuserid', null); |
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$sessionRecord = $sessionObject->toArray(); |
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$sessionRecord['ses_userid'] = $originalUser; |
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$this->sessionBackend->update($sessionObject->getIdentifier(), $sessionRecord); |
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// We must regenerate the internal session so the new ses_userid is present in the userObject |
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$currentUser->enforceNewSessionId(); |
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return $this->jsonResponse([ |
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'success' => true, |
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'url' => $this->uriBuilder->buildUriFromRoute('main') |
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]); |
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} |
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/** |
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* Generates a list of users to whom where switched in the past. This is limited by RECENT_USERS_LIMIT. |
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* |
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* @param int $targetUserUid |
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* @return int[] |
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*/ |
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protected function generateListOfMostRecentSwitchedUsers(int $targetUserUid): array |
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{ |
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$latestUserUids = []; |
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$backendUser = $this->getBackendUserAuthentication(); |
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if (isset($backendUser->uc['recentSwitchedToUsers']) && is_array($backendUser->uc['recentSwitchedToUsers'])) { |
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$latestUserUids = $backendUser->uc['recentSwitchedToUsers']; |
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} |
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// Remove potentially existing user in that list |
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$index = array_search($targetUserUid, $latestUserUids, true); |
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if ($index !== false) { |
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unset($latestUserUids[$index]); |
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} |
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array_unshift($latestUserUids, $targetUserUid); |
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return array_slice($latestUserUids, 0, static::RECENT_USERS_LIMIT); |
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} |
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protected function jsonResponse(array $data): ResponseInterface |
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{ |
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$response = $this->responseFactory |
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->createResponse() |
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->withAddedHeader('Content-Type', 'application/json; charset=utf-8'); |
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$response->getBody()->write(json_encode($data)); |
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return $response; |
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} |
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protected function getBackendUserAuthentication(): BackendUserAuthentication |
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{ |
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return $GLOBALS['BE_USER']; |
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} |
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} |
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TYPO3 /
TYPO3.CMS
