123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251 |
- <?php
- declare(strict_types=1);
- /**
- * @copyright Copyright (c) 2017, Robin Appelman <robin@icewind.nl>
- *
- * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- * @author Guillaume Virlet <github@virlet.org>
- * @author Joas Schilling <coding@schilljs.com>
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
- namespace OC\Federation;
- use OCA\DAV\Events\CardUpdatedEvent;
- use OCP\Contacts\IManager;
- use OCP\EventDispatcher\Event;
- use OCP\EventDispatcher\IEventDispatcher;
- use OCP\Federation\ICloudId;
- use OCP\Federation\ICloudIdManager;
- use OCP\ICache;
- use OCP\ICacheFactory;
- use OCP\IURLGenerator;
- use OCP\IUserManager;
- use OCP\User\Events\UserChangedEvent;
- class CloudIdManager implements ICloudIdManager {
- /** @var IManager */
- private $contactsManager;
- /** @var IURLGenerator */
- private $urlGenerator;
- /** @var IUserManager */
- private $userManager;
- private ICache $memCache;
- /** @var array[] */
- private array $cache = [];
- public function __construct(
- IManager $contactsManager,
- IURLGenerator $urlGenerator,
- IUserManager $userManager,
- ICacheFactory $cacheFactory,
- IEventDispatcher $eventDispatcher
- ) {
- $this->contactsManager = $contactsManager;
- $this->urlGenerator = $urlGenerator;
- $this->userManager = $userManager;
- $this->memCache = $cacheFactory->createDistributed('cloud_id_');
- $eventDispatcher->addListener(UserChangedEvent::class, [$this, 'handleUserEvent']);
- $eventDispatcher->addListener(CardUpdatedEvent::class, [$this, 'handleCardEvent']);
- }
- public function handleUserEvent(Event $event): void {
- if ($event instanceof UserChangedEvent && $event->getFeature() === 'displayName') {
- $userId = $event->getUser()->getUID();
- $key = $userId . '@local';
- unset($this->cache[$key]);
- $this->memCache->remove($key);
- }
- }
- public function handleCardEvent(Event $event): void {
- if ($event instanceof CardUpdatedEvent) {
- $data = $event->getCardData()['carddata'];
- foreach (explode("\r\n", $data) as $line) {
- if (str_starts_with($line, "CLOUD;")) {
- $parts = explode(':', $line, 2);
- if (isset($parts[1])) {
- $key = $parts[1];
- unset($this->cache[$key]);
- $this->memCache->remove($key);
- }
- }
- }
- }
- }
- /**
- * @param string $cloudId
- * @return ICloudId
- * @throws \InvalidArgumentException
- */
- public function resolveCloudId(string $cloudId): ICloudId {
- // TODO magic here to get the url and user instead of just splitting on @
- if (!$this->isValidCloudId($cloudId)) {
- throw new \InvalidArgumentException('Invalid cloud id');
- }
- // Find the first character that is not allowed in user names
- $id = $this->fixRemoteURL($cloudId);
- $posSlash = strpos($id, '/');
- $posColon = strpos($id, ':');
- if ($posSlash === false && $posColon === false) {
- $invalidPos = \strlen($id);
- } elseif ($posSlash === false) {
- $invalidPos = $posColon;
- } elseif ($posColon === false) {
- $invalidPos = $posSlash;
- } else {
- $invalidPos = min($posSlash, $posColon);
- }
- $lastValidAtPos = strrpos($id, '@', $invalidPos - strlen($id));
- if ($lastValidAtPos !== false) {
- $user = substr($id, 0, $lastValidAtPos);
- $remote = substr($id, $lastValidAtPos + 1);
- $this->userManager->validateUserId($user);
- if (!empty($user) && !empty($remote)) {
- return new CloudId($id, $user, $remote, $this->getDisplayNameFromContact($id));
- }
- }
- throw new \InvalidArgumentException('Invalid cloud id');
- }
- protected function getDisplayNameFromContact(string $cloudId): ?string {
- $addressBookEntries = $this->contactsManager->search($cloudId, ['CLOUD'], [
- 'limit' => 1,
- 'enumeration' => false,
- 'fullmatch' => false,
- 'strict_search' => true,
- ]);
- foreach ($addressBookEntries as $entry) {
- if (isset($entry['CLOUD'])) {
- foreach ($entry['CLOUD'] as $cloudID) {
- if ($cloudID === $cloudId) {
- // Warning, if user decides to make his full name local only,
- // no FN is found on federated servers
- if (isset($entry['FN'])) {
- return $entry['FN'];
- } else {
- return $cloudID;
- }
- }
- }
- }
- }
- return null;
- }
- /**
- * @param string $user
- * @param string|null $remote
- * @return CloudId
- */
- public function getCloudId(string $user, ?string $remote): ICloudId {
- $isLocal = $remote === null;
- if ($isLocal) {
- $remote = rtrim($this->urlGenerator->getAbsoluteURL('/'), '/');
- }
- // note that for remote id's we don't strip the protocol for the remote we use to construct the CloudId
- // this way if a user has an explicit non-https cloud id this will be preserved
- // we do still use the version without protocol for looking up the display name
- $remote = $this->removeProtocolFromUrl($remote, true);
- $remote = $this->fixRemoteURL($remote);
- $host = $this->removeProtocolFromUrl($remote);
- $key = $user . '@' . ($isLocal ? 'local' : $host);
- $cached = $this->cache[$key] ?? $this->memCache->get($key);
- if ($cached) {
- $this->cache[$key] = $cached; // put items from memcache into local cache
- return new CloudId($cached['id'], $cached['user'], $cached['remote'], $cached['displayName']);
- }
- if ($isLocal) {
- $localUser = $this->userManager->get($user);
- $displayName = $localUser ? $localUser->getDisplayName() : '';
- } else {
- $displayName = $this->getDisplayNameFromContact($user . '@' . $host);
- }
- $id = $user . '@' . $remote;
- $data = [
- 'id' => $id,
- 'user' => $user,
- 'remote' => $remote,
- 'displayName' => $displayName,
- ];
- $this->cache[$key] = $data;
- $this->memCache->set($key, $data, 15 * 60);
- return new CloudId($id, $user, $remote, $displayName);
- }
- /**
- * @param string $url
- * @return string
- */
- public function removeProtocolFromUrl(string $url, bool $httpsOnly = false): string {
- if (str_starts_with($url, 'https://')) {
- return substr($url, 8);
- }
- if (!$httpsOnly && str_starts_with($url, 'http://')) {
- return substr($url, 7);
- }
- return $url;
- }
- /**
- * Strips away a potential file names and trailing slashes:
- * - http://localhost
- * - http://localhost/
- * - http://localhost/index.php
- * - http://localhost/index.php/s/{shareToken}
- *
- * all return: http://localhost
- *
- * @param string $remote
- * @return string
- */
- protected function fixRemoteURL(string $remote): string {
- $remote = str_replace('\\', '/', $remote);
- if ($fileNamePosition = strpos($remote, '/index.php')) {
- $remote = substr($remote, 0, $fileNamePosition);
- }
- $remote = rtrim($remote, '/');
- return $remote;
- }
- /**
- * @param string $cloudId
- * @return bool
- */
- public function isValidCloudId(string $cloudId): bool {
- return str_contains($cloudId, '@');
- }
- }
|