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<?php |
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/** |
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* @author Arthur Schiwon <[email protected]> |
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* @author Lukas Reschke <[email protected]> |
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* @author Morris Jobke <[email protected]> |
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* @author Robin Appelman <[email protected]> |
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* @author Roeland Jago Douma <[email protected]> |
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* @author Thomas Müller <[email protected]> |
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* @author Vincent Petry <[email protected]> |
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* |
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* @copyright Copyright (c) 2018, ownCloud GmbH |
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* @license AGPL-3.0 |
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* |
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* This code 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, version 3, |
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* as published by the Free Software Foundation. |
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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, version 3, |
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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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namespace OC; |
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use OCP\Files\Folder; |
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use OCP\Files\NotFoundException; |
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use OCP\IAvatarManager; |
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use OCP\ILogger; |
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use OCP\IUserManager; |
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use OCP\Files\IRootFolder; |
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use OCP\IL10N; |
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use OCP\IUser; |
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/** |
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* This class implements methods to access Avatar functionality |
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*/ |
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class AvatarManager implements IAvatarManager { |
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/** @var IUserManager */ |
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private $userManager; |
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/** @var IRootFolder */ |
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private $rootFolder; |
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/** @var IL10N */ |
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private $l; |
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/** @var ILogger */ |
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private $logger; |
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/** |
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* AvatarManager constructor. |
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* |
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* @param IUserManager $userManager |
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* @param IRootFolder $rootFolder |
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* @param IL10N $l |
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* @param ILogger $logger |
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*/ |
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public function __construct( |
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IUserManager $userManager, |
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IRootFolder $rootFolder, |
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IL10N $l, |
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ILogger $logger) { |
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$this->userManager = $userManager; |
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$this->rootFolder = $rootFolder; |
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$this->l = $l; |
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$this->logger = $logger; |
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} |
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/** |
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* return a user specific instance of \OCP\IAvatar |
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* @see \OCP\IAvatar |
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* @param string $userId the ownCloud user id |
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* @return \OCP\IAvatar |
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* @throws \Exception In case the username is potentially dangerous |
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* @throws NotFoundException In case there is no user folder yet |
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*/ |
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public function getAvatar($userId) { |
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$user = $this->userManager->get($userId); |
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if ($user === null) { |
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throw new \Exception('user does not exist'); |
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} |
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$avatarsFolder = $this->getAvatarFolder($user); |
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return new Avatar($avatarsFolder, $this->l, $user, $this->logger); |
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} |
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private function getFolder(Folder $folder, $path) { |
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try { |
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return $folder->get($path); |
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} catch (NotFoundException $e) { |
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return $folder->newFolder($path); |
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} |
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} |
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private function buildAvatarPath($userId) { |
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$avatar = \substr_replace(\substr_replace(\md5($userId), '/', 4, 0), '/', 2, 0); |
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return \explode('/', $avatar); |
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} |
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/** |
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* Returns the avatar folder for the given user |
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* |
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* @param IUser $user user |
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* @return Folder|\OCP\Files\Node |
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* |
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* @internal |
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*/ |
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public function getAvatarFolder(IUser $user) { |
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$avatarsFolder = $this->getFolder($this->rootFolder, 'avatars'); |
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$parts = $this->buildAvatarPath($user->getUID()); |
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foreach ($parts as $part) { |
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$avatarsFolder = $this->getFolder($avatarsFolder, $part); |
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} |
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return $avatarsFolder; |
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} |
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} |
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This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.
Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.