470 lines
14 KiB
PHP
470 lines
14 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Bjoern Schiessle <bjoern@schiessle.org>
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* @author Björn Schießle <bjoern@schiessle.org>
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* @author Joas Schilling <coding@schilljs.com>
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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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*
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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 OCA\FederatedFileSharing\Controller;
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use OCA\FederatedFileSharing\AddressHandler;
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use OCA\FederatedFileSharing\FederatedShareProvider;
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use OCA\FederatedFileSharing\Notifications;
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use OCP\AppFramework\Http;
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use OCP\AppFramework\OCS\OCSBadRequestException;
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use OCP\AppFramework\OCS\OCSException;
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use OCP\AppFramework\OCS\OCSForbiddenException;
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use OCP\AppFramework\OCSController;
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use OCP\Constants;
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use OCP\Federation\Exceptions\ProviderCouldNotAddShareException;
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use OCP\Federation\Exceptions\ProviderDoesNotExistsException;
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use OCP\Federation\ICloudFederationFactory;
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use OCP\Federation\ICloudFederationProviderManager;
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use OCP\Federation\ICloudIdManager;
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use OCP\IDBConnection;
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use OCP\ILogger;
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use OCP\IRequest;
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use OCP\IUserManager;
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use OCP\Share;
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use OCP\Share\Exceptions\ShareNotFound;
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class RequestHandlerController extends OCSController {
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/** @var FederatedShareProvider */
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private $federatedShareProvider;
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/** @var IDBConnection */
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private $connection;
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/** @var Share\IManager */
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private $shareManager;
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/** @var Notifications */
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private $notifications;
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/** @var AddressHandler */
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private $addressHandler;
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/** @var IUserManager */
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private $userManager;
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/** @var string */
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private $shareTable = 'share';
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/** @var ICloudIdManager */
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private $cloudIdManager;
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/** @var ILogger */
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private $logger;
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/** @var ICloudFederationFactory */
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private $cloudFederationFactory;
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/** @var ICloudFederationProviderManager */
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private $cloudFederationProviderManager;
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/**
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* Server2Server constructor.
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*
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* @param string $appName
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* @param IRequest $request
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* @param FederatedShareProvider $federatedShareProvider
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* @param IDBConnection $connection
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* @param Share\IManager $shareManager
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* @param Notifications $notifications
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* @param AddressHandler $addressHandler
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* @param IUserManager $userManager
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* @param ICloudIdManager $cloudIdManager
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* @param ILogger $logger
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* @param ICloudFederationFactory $cloudFederationFactory
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* @param ICloudFederationProviderManager $cloudFederationProviderManager
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*/
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public function __construct($appName,
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IRequest $request,
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FederatedShareProvider $federatedShareProvider,
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IDBConnection $connection,
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Share\IManager $shareManager,
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Notifications $notifications,
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AddressHandler $addressHandler,
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IUserManager $userManager,
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ICloudIdManager $cloudIdManager,
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ILogger $logger,
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ICloudFederationFactory $cloudFederationFactory,
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ICloudFederationProviderManager $cloudFederationProviderManager
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) {
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parent::__construct($appName, $request);
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$this->federatedShareProvider = $federatedShareProvider;
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$this->connection = $connection;
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$this->shareManager = $shareManager;
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$this->notifications = $notifications;
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$this->addressHandler = $addressHandler;
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$this->userManager = $userManager;
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$this->cloudIdManager = $cloudIdManager;
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$this->logger = $logger;
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$this->cloudFederationFactory = $cloudFederationFactory;
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$this->cloudFederationProviderManager = $cloudFederationProviderManager;
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}
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/**
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* @NoCSRFRequired
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* @PublicPage
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*
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* create a new share
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*
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* @return Http\DataResponse
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* @throws OCSException
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*/
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public function createShare() {
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$remote = isset($_POST['remote']) ? $_POST['remote'] : null;
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$token = isset($_POST['token']) ? $_POST['token'] : null;
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$name = isset($_POST['name']) ? $_POST['name'] : null;
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$owner = isset($_POST['owner']) ? $_POST['owner'] : null;
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$sharedBy = isset($_POST['sharedBy']) ? $_POST['sharedBy'] : null;
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$shareWith = isset($_POST['shareWith']) ? $_POST['shareWith'] : null;
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$remoteId = isset($_POST['remoteId']) ? (int)$_POST['remoteId'] : null;
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$sharedByFederatedId = isset($_POST['sharedByFederatedId']) ? $_POST['sharedByFederatedId'] : null;
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$ownerFederatedId = isset($_POST['ownerFederatedId']) ? $_POST['ownerFederatedId'] : null;
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if ($ownerFederatedId === null) {
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$ownerFederatedId = $this->cloudIdManager->getCloudId($owner, $this->cleanupRemote($remote))->getId();
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}
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// if the owner of the share and the initiator are the same user
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// we also complete the federated share ID for the initiator
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if ($sharedByFederatedId === null && $owner === $sharedBy) {
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$sharedByFederatedId = $ownerFederatedId;
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}
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$share = $this->cloudFederationFactory->getCloudFederationShare(
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$shareWith,
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$name,
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'',
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$remoteId,
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$ownerFederatedId,
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$owner,
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$sharedByFederatedId,
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$sharedBy,
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$token,
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'user',
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'file'
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);
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try {
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$provider = $this->cloudFederationProviderManager->getCloudFederationProvider('file');
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$provider->shareReceived($share);
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} catch (ProviderDoesNotExistsException $e) {
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throw new OCSException('Server does not support federated cloud sharing', 503);
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} catch (ProviderCouldNotAddShareException $e) {
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throw new OCSException($e->getMessage(), 400);
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} catch (\Exception $e) {
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throw new OCSException('internal server error, was not able to add share from ' . $remote, 500);
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}
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return new Http\DataResponse();
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}
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/**
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* @NoCSRFRequired
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* @PublicPage
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*
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* create re-share on behalf of another user
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*
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* @param int $id
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* @return Http\DataResponse
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* @throws OCSBadRequestException
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* @throws OCSException
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* @throws OCSForbiddenException
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*/
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public function reShare($id) {
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$token = $this->request->getParam('token', null);
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$shareWith = $this->request->getParam('shareWith', null);
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$permission = (int)$this->request->getParam('permission', null);
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$remoteId = (int)$this->request->getParam('remoteId', null);
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if ($id === null ||
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$token === null ||
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$shareWith === null ||
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$permission === null ||
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$remoteId === null
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) {
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throw new OCSBadRequestException();
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}
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$notification = [
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'sharedSecret' => $token,
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'shareWith' => $shareWith,
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'senderId' => $remoteId,
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'message' => 'Recipient of a share ask the owner to reshare the file'
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];
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try {
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$provider = $this->cloudFederationProviderManager->getCloudFederationProvider('file');
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[$newToken, $localId] = $provider->notificationReceived('REQUEST_RESHARE', $id, $notification);
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return new Http\DataResponse([
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'token' => $newToken,
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'remoteId' => $localId
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]);
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} catch (ProviderDoesNotExistsException $e) {
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throw new OCSException('Server does not support federated cloud sharing', 503);
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} catch (ShareNotFound $e) {
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$this->logger->debug('Share not found: ' . $e->getMessage());
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} catch (\Exception $e) {
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$this->logger->debug('internal server error, can not process notification: ' . $e->getMessage());
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}
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throw new OCSBadRequestException();
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}
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/**
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* @NoCSRFRequired
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* @PublicPage
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*
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* accept server-to-server share
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*
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* @param int $id
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* @return Http\DataResponse
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* @throws OCSException
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* @throws ShareNotFound
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* @throws \OC\HintException
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*/
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public function acceptShare($id) {
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$token = isset($_POST['token']) ? $_POST['token'] : null;
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$notification = [
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'sharedSecret' => $token,
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'message' => 'Recipient accept the share'
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];
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try {
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$provider = $this->cloudFederationProviderManager->getCloudFederationProvider('file');
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$provider->notificationReceived('SHARE_ACCEPTED', $id, $notification);
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} catch (ProviderDoesNotExistsException $e) {
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throw new OCSException('Server does not support federated cloud sharing', 503);
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} catch (ShareNotFound $e) {
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$this->logger->debug('Share not found: ' . $e->getMessage());
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} catch (\Exception $e) {
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$this->logger->debug('internal server error, can not process notification: ' . $e->getMessage());
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}
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return new Http\DataResponse();
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}
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/**
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* @NoCSRFRequired
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* @PublicPage
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*
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* decline server-to-server share
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*
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* @param int $id
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* @return Http\DataResponse
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* @throws OCSException
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*/
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public function declineShare($id) {
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$token = isset($_POST['token']) ? $_POST['token'] : null;
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$notification = [
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'sharedSecret' => $token,
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'message' => 'Recipient declined the share'
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];
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try {
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$provider = $this->cloudFederationProviderManager->getCloudFederationProvider('file');
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$provider->notificationReceived('SHARE_DECLINED', $id, $notification);
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} catch (ProviderDoesNotExistsException $e) {
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throw new OCSException('Server does not support federated cloud sharing', 503);
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} catch (ShareNotFound $e) {
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$this->logger->debug('Share not found: ' . $e->getMessage());
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} catch (\Exception $e) {
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$this->logger->debug('internal server error, can not process notification: ' . $e->getMessage());
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}
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return new Http\DataResponse();
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}
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/**
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* @NoCSRFRequired
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* @PublicPage
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*
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* remove server-to-server share if it was unshared by the owner
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*
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* @param int $id
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* @return Http\DataResponse
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* @throws OCSException
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*/
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public function unshare($id) {
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if (!$this->isS2SEnabled()) {
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throw new OCSException('Server does not support federated cloud sharing', 503);
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}
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$token = isset($_POST['token']) ? $_POST['token'] : null;
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try {
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$provider = $this->cloudFederationProviderManager->getCloudFederationProvider('file');
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$notification = ['sharedSecret' => $token];
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$provider->notificationReceived('SHARE_UNSHARED', $id, $notification);
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} catch (\Exception $e) {
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$this->logger->debug('processing unshare notification failed: ' . $e->getMessage());
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}
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return new Http\DataResponse();
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}
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private function cleanupRemote($remote) {
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$remote = substr($remote, strpos($remote, '://') + 3);
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return rtrim($remote, '/');
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}
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/**
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* @NoCSRFRequired
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* @PublicPage
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*
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* federated share was revoked, either by the owner or the re-sharer
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*
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* @param int $id
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* @return Http\DataResponse
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* @throws OCSBadRequestException
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*/
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public function revoke($id) {
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$token = $this->request->getParam('token');
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try {
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$provider = $this->cloudFederationProviderManager->getCloudFederationProvider('file');
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$notification = ['sharedSecret' => $token];
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$provider->notificationReceived('RESHARE_UNDO', $id, $notification);
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return new Http\DataResponse();
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} catch (\Exception $e) {
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throw new OCSBadRequestException();
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}
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}
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/**
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* check if server-to-server sharing is enabled
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*
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* @param bool $incoming
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* @return bool
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*/
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private function isS2SEnabled($incoming = false) {
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$result = \OCP\App::isEnabled('files_sharing');
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if ($incoming) {
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$result = $result && $this->federatedShareProvider->isIncomingServer2serverShareEnabled();
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} else {
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$result = $result && $this->federatedShareProvider->isOutgoingServer2serverShareEnabled();
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}
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return $result;
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}
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/**
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* @NoCSRFRequired
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* @PublicPage
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*
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* update share information to keep federated re-shares in sync
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*
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* @param int $id
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* @return Http\DataResponse
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* @throws OCSBadRequestException
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*/
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public function updatePermissions($id) {
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$token = $this->request->getParam('token', null);
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$ncPermissions = $this->request->getParam('permissions', null);
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try {
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$provider = $this->cloudFederationProviderManager->getCloudFederationProvider('file');
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$ocmPermissions = $this->ncPermissions2ocmPermissions((int)$ncPermissions);
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$notification = ['sharedSecret' => $token, 'permission' => $ocmPermissions];
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$provider->notificationReceived('RESHARE_CHANGE_PERMISSION', $id, $notification);
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} catch (\Exception $e) {
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$this->logger->debug($e->getMessage());
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throw new OCSBadRequestException();
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}
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return new Http\DataResponse();
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}
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/**
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* translate Nextcloud permissions to OCM Permissions
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*
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* @param $ncPermissions
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* @return array
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*/
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protected function ncPermissions2ocmPermissions($ncPermissions) {
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$ocmPermissions = [];
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if ($ncPermissions & Constants::PERMISSION_SHARE) {
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$ocmPermissions[] = 'share';
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}
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if ($ncPermissions & Constants::PERMISSION_READ) {
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$ocmPermissions[] = 'read';
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}
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if (($ncPermissions & Constants::PERMISSION_CREATE) ||
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($ncPermissions & Constants::PERMISSION_UPDATE)) {
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$ocmPermissions[] = 'write';
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}
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return $ocmPermissions;
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}
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/**
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* @NoCSRFRequired
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* @PublicPage
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*
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* change the owner of a server-to-server share
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*
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* @param int $id
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* @return Http\DataResponse
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* @throws \InvalidArgumentException
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* @throws OCSException
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*/
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public function move($id) {
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if (!$this->isS2SEnabled()) {
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throw new OCSException('Server does not support federated cloud sharing', 503);
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}
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$token = $this->request->getParam('token');
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$remote = $this->request->getParam('remote');
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$newRemoteId = $this->request->getParam('remote_id', $id);
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$cloudId = $this->cloudIdManager->resolveCloudId($remote);
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$qb = $this->connection->getQueryBuilder();
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$query = $qb->update('share_external')
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->set('remote', $qb->createNamedParameter($cloudId->getRemote()))
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->set('owner', $qb->createNamedParameter($cloudId->getUser()))
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->set('remote_id', $qb->createNamedParameter($newRemoteId))
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->where($qb->expr()->eq('remote_id', $qb->createNamedParameter($id)))
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->andWhere($qb->expr()->eq('share_token', $qb->createNamedParameter($token)));
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$affected = $query->execute();
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if ($affected > 0) {
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return new Http\DataResponse(['remote' => $cloudId->getRemote(), 'owner' => $cloudId->getUser()]);
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} else {
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throw new OCSBadRequestException('Share not found or token invalid');
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}
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}
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}
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