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- <?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 OCP\Contacts\IManager;
- use OCP\Federation\ICloudId;
- use OCP\Federation\ICloudIdManager;
- use OCP\IURLGenerator;
- use OCP\IUserManager;
-
- class CloudIdManager implements ICloudIdManager {
- /** @var IManager */
- private $contactsManager;
- /** @var IURLGenerator */
- private $urlGenerator;
- /** @var IUserManager */
- private $userManager;
-
- public function __construct(IManager $contactsManager, IURLGenerator $urlGenerator, IUserManager $userManager) {
- $this->contactsManager = $contactsManager;
- $this->urlGenerator = $urlGenerator;
- $this->userManager = $userManager;
- }
-
- /**
- * @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, $lastValidAtPos + 1);
- if (!empty($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']);
- 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 $remote): ICloudId {
- if ($remote === null) {
- $remote = rtrim($this->removeProtocolFromUrl($this->urlGenerator->getAbsoluteURL('/')), '/');
- $fixedRemote = $this->fixRemoteURL($remote);
- $localUser = $this->userManager->get($user);
- $displayName = !is_null($localUser) ? $localUser->getDisplayName() : '';
- } else {
- // TODO check what the correct url is for remote (asking the remote)
- $fixedRemote = $this->fixRemoteURL($remote);
- $host = $this->removeProtocolFromUrl($fixedRemote);
- $displayName = $this->getDisplayNameFromContact($user . '@' . $host);
- }
- $id = $user . '@' . $remote;
- return new CloudId($id, $user, $fixedRemote, $displayName);
- }
-
- /**
- * @param string $url
- * @return string
- */
- private function removeProtocolFromUrl($url) {
- if (strpos($url, 'https://') === 0) {
- return substr($url, strlen('https://'));
- } elseif (strpos($url, 'http://') === 0) {
- return substr($url, strlen('http://'));
- }
-
- 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 $cloudId): bool {
- return strpos($cloudId, '@') !== false;
- }
- }
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