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155 lines
5.0 KiB
PHP
155 lines
5.0 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Joas Schilling <coding@schilljs.com>
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* @author John Molakvoæ <skjnldsv@protonmail.com>
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* @author Julius Härtl <jus@bitgrid.net>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Michael Weimann <mail@michael-weimann.eu>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Vincent Petry <vincent@nextcloud.com>
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*
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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\Avatar;
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use OC\KnownUser\KnownUserService;
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use OC\User\Manager;
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use OC\User\NoUserException;
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use OCP\Accounts\IAccountManager;
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use OCP\Accounts\PropertyDoesNotExistException;
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use OCP\Files\IAppData;
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use OCP\Files\NotFoundException;
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use OCP\Files\NotPermittedException;
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use OCP\Files\StorageNotAvailableException;
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use OCP\IAvatar;
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use OCP\IAvatarManager;
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use OCP\IConfig;
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use OCP\IL10N;
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use OCP\IUserSession;
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use Psr\Log\LoggerInterface;
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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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public function __construct(
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private IUserSession $userSession,
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private Manager $userManager,
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private IAppData $appData,
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private IL10N $l,
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private LoggerInterface $logger,
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private IConfig $config,
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private IAccountManager $accountManager,
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private KnownUserService $knownUserService,
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) {
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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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* @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(string $userId): IAvatar {
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$user = $this->userManager->get($userId);
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if ($user === null) {
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throw new \Exception('user does not exist');
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}
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// sanitize userID - fixes casing issue (needed for the filesystem stuff that is done below)
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$userId = $user->getUID();
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$requestingUser = $this->userSession->getUser();
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try {
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$folder = $this->appData->getFolder($userId);
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} catch (NotFoundException $e) {
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$folder = $this->appData->newFolder($userId);
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}
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try {
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$account = $this->accountManager->getAccount($user);
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$avatarProperties = $account->getProperty(IAccountManager::PROPERTY_AVATAR);
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$avatarScope = $avatarProperties->getScope();
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} catch (PropertyDoesNotExistException $e) {
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$avatarScope = '';
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}
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switch ($avatarScope) {
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// v2-private scope hides the avatar from public access and from unknown users
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case IAccountManager::SCOPE_PRIVATE:
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if ($requestingUser !== null && $this->knownUserService->isKnownToUser($requestingUser->getUID(), $userId)) {
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return new UserAvatar($folder, $this->l, $user, $this->logger, $this->config);
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}
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break;
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case IAccountManager::SCOPE_LOCAL:
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case IAccountManager::SCOPE_FEDERATED:
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case IAccountManager::SCOPE_PUBLISHED:
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return new UserAvatar($folder, $this->l, $user, $this->logger, $this->config);
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default:
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// use a placeholder avatar which caches the generated images
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return new PlaceholderAvatar($folder, $user, $this->logger);
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}
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return new PlaceholderAvatar($folder, $user, $this->logger);
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}
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/**
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* Clear generated avatars
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*/
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public function clearCachedAvatars(): void {
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$users = $this->config->getUsersForUserValue('avatar', 'generated', 'true');
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foreach ($users as $userId) {
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// This also bumps the avatar version leading to cache invalidation in browsers
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$this->getAvatar($userId)->remove();
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}
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}
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public function deleteUserAvatar(string $userId): void {
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try {
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$folder = $this->appData->getFolder($userId);
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$folder->delete();
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} catch (NotFoundException $e) {
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$this->logger->debug("No cache for the user $userId. Ignoring avatar deletion");
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} catch (NotPermittedException | StorageNotAvailableException $e) {
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$this->logger->error("Unable to delete user avatars for $userId. gnoring avatar deletion");
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} catch (NoUserException $e) {
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$this->logger->debug("User $userId not found. gnoring avatar deletion");
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}
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$this->config->deleteUserValue($userId, 'avatar', 'generated');
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}
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/**
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* Returns a GuestAvatar.
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*
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* @param string $name The guest name, e.g. "Albert".
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*/
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public function getGuestAvatar(string $name): IAvatar {
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return new GuestAvatar($name, $this->logger);
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}
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}
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