340 lines
11 KiB
PHP
340 lines
11 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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* @copyright Copyright (c) 2016, Björn Schießle <bjoern@schiessle.org>
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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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*
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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 OC\Files\Filesystem;
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use OC\HintException;
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use OC\Share\Helper;
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use OCA\FederatedFileSharing\AddressHandler;
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use OCA\FederatedFileSharing\DiscoveryManager;
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use OCA\FederatedFileSharing\FederatedShareProvider;
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use OCA\Files_Sharing\External\Manager;
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use OCP\AppFramework\Controller;
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use OCP\AppFramework\Http;
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use OCP\AppFramework\Http\JSONResponse;
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use OCP\Federation\ICloudIdManager;
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use OCP\Files\StorageInvalidException;
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use OCP\Http\Client\IClientService;
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use OCP\IL10N;
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use OCP\IRequest;
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use OCP\ISession;
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use OCP\IUserSession;
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use OCP\Share\IManager;
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use OCP\Util;
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/**
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* Class MountPublicLinkController
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*
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* convert public links to federated shares
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*
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* @package OCA\FederatedFileSharing\Controller
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*/
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class MountPublicLinkController extends Controller {
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/** @var FederatedShareProvider */
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private $federatedShareProvider;
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/** @var AddressHandler */
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private $addressHandler;
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/** @var IManager */
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private $shareManager;
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/** @var ISession */
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private $session;
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/** @var IL10N */
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private $l;
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/** @var IUserSession */
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private $userSession;
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/** @var IClientService */
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private $clientService;
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/** @var ICloudIdManager */
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private $cloudIdManager;
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/**
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* MountPublicLinkController 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 IManager $shareManager
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* @param AddressHandler $addressHandler
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* @param ISession $session
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* @param IL10N $l
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* @param IUserSession $userSession
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* @param IClientService $clientService
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* @param ICloudIdManager $cloudIdManager
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*/
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public function __construct($appName,
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IRequest $request,
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FederatedShareProvider $federatedShareProvider,
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IManager $shareManager,
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AddressHandler $addressHandler,
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ISession $session,
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IL10N $l,
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IUserSession $userSession,
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IClientService $clientService,
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ICloudIdManager $cloudIdManager
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) {
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parent::__construct($appName, $request);
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$this->federatedShareProvider = $federatedShareProvider;
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$this->shareManager = $shareManager;
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$this->addressHandler = $addressHandler;
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$this->session = $session;
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$this->l = $l;
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$this->userSession = $userSession;
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$this->clientService = $clientService;
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$this->cloudIdManager = $cloudIdManager;
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}
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/**
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* send federated share to a user of a public link
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*
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* @NoCSRFRequired
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* @PublicPage
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* @BruteForceProtection publicLink2FederatedShare
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*
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* @param string $shareWith
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* @param string $token
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* @param string $password
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* @return JSONResponse
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*/
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public function createFederatedShare($shareWith, $token, $password = '') {
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if (!$this->federatedShareProvider->isOutgoingServer2serverShareEnabled()) {
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return new JSONResponse(
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['message' => 'This server doesn\'t support outgoing federated shares'],
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Http::STATUS_BAD_REQUEST
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);
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}
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try {
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list(, $server) = $this->addressHandler->splitUserRemote($shareWith);
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$share = $this->shareManager->getShareByToken($token);
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} catch (HintException $e) {
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return new JSONResponse(['message' => $e->getHint()], Http::STATUS_BAD_REQUEST);
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}
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// make sure that user is authenticated in case of a password protected link
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$storedPassword = $share->getPassword();
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$authenticated = $this->session->get('public_link_authenticated') === $share->getId() ||
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$this->shareManager->checkPassword($share, $password);
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if (!empty($storedPassword) && !$authenticated ) {
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return new JSONResponse(
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['message' => 'No permission to access the share'],
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Http::STATUS_BAD_REQUEST
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);
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}
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$share->setSharedWith($shareWith);
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try {
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$this->federatedShareProvider->create($share);
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} catch (\Exception $e) {
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return new JSONResponse(['message' => $e->getMessage()], Http::STATUS_BAD_REQUEST);
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}
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return new JSONResponse(['remoteUrl' => $server]);
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}
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/**
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* ask other server to get a federated share
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*
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* @NoAdminRequired
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*
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* @param string $token
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* @param string $remote
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* @param string $password
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* @param string $owner (only for legacy reasons, can be removed with legacyMountPublicLink())
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* @param string $ownerDisplayName (only for legacy reasons, can be removed with legacyMountPublicLink())
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* @param string $name (only for legacy reasons, can be removed with legacyMountPublicLink())
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* @return JSONResponse
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*/
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public function askForFederatedShare($token, $remote, $password = '', $owner = '', $ownerDisplayName = '', $name = '') {
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// check if server admin allows to mount public links from other servers
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if ($this->federatedShareProvider->isIncomingServer2serverShareEnabled() === false) {
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return new JSONResponse(['message' => $this->l->t('Server to server sharing is not enabled on this server')], Http::STATUS_BAD_REQUEST);
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}
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$cloudId = $this->cloudIdManager->getCloudId($this->userSession->getUser()->getUID(), $this->addressHandler->generateRemoteURL());
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$httpClient = $this->clientService->newClient();
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try {
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$response = $httpClient->post($remote . '/index.php/apps/federatedfilesharing/createFederatedShare',
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[
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'body' =>
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[
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'token' => $token,
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'shareWith' => rtrim($cloudId->getId(), '/'),
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'password' => $password
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],
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'connect_timeout' => 10,
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]
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);
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} catch (\Exception $e) {
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if (empty($password)) {
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$message = $this->l->t("Couldn't establish a federated share.");
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} else {
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$message = $this->l->t("Couldn't establish a federated share, maybe the password was wrong.");
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}
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return new JSONResponse(['message' => $message], Http::STATUS_BAD_REQUEST);
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}
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$body = $response->getBody();
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$result = json_decode($body, true);
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if (is_array($result) && isset($result['remoteUrl'])) {
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return new JSONResponse(['message' => $this->l->t('Federated Share request was successful, you will receive a invitation. Check your notifications.')]);
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}
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// if we doesn't get the expected response we assume that we try to add
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// a federated share from a Nextcloud <= 9 server
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return $this->legacyMountPublicLink($token, $remote, $password, $name, $owner, $ownerDisplayName);
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}
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/**
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* Allow Nextcloud to mount a public link directly
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*
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* This code was copied from the apps/files_sharing/ajax/external.php with
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* minimal changes, just to guarantee backward compatibility
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*
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* ToDo: Remove this method once Nextcloud 9 reaches end of life
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*
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* @param string $token
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* @param string $remote
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* @param string $password
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* @param string $name
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* @param string $owner
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* @param string $ownerDisplayName
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* @return JSONResponse
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*/
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private function legacyMountPublicLink($token, $remote, $password, $name, $owner, $ownerDisplayName) {
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// Check for invalid name
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if (!Util::isValidFileName($name)) {
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return new JSONResponse(['message' => $this->l->t('The mountpoint name contains invalid characters.')], Http::STATUS_BAD_REQUEST);
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}
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$currentUser = $this->userSession->getUser()->getUID();
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$currentServer = $this->addressHandler->generateRemoteURL();
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if (Helper::isSameUserOnSameServer($owner, $remote, $currentUser, $currentServer)) {
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return new JSONResponse(['message' => $this->l->t('Not allowed to create a federated share with the owner.')], Http::STATUS_BAD_REQUEST);
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}
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$discoveryManager = new DiscoveryManager(
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\OC::$server->getMemCacheFactory(),
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\OC::$server->getHTTPClientService()
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);
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$externalManager = new Manager(
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\OC::$server->getDatabaseConnection(),
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Filesystem::getMountManager(),
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Filesystem::getLoader(),
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\OC::$server->getHTTPClientService(),
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\OC::$server->getNotificationManager(),
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$discoveryManager,
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\OC::$server->getUserSession()->getUser()->getUID()
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);
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// check for ssl cert
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if (strpos($remote, 'https') === 0) {
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try {
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$client = $this->clientService->newClient();
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$client->get($remote, [
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'timeout' => 10,
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'connect_timeout' => 10,
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])->getBody();
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} catch (\Exception $e) {
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return new JSONResponse(['message' => $this->l->t('Invalid or untrusted SSL certificate')], Http::STATUS_BAD_REQUEST);
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}
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}
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$mount = $externalManager->addShare($remote, $token, $password, $name, $ownerDisplayName, true);
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/**
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* @var \OCA\Files_Sharing\External\Storage $storage
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*/
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$storage = $mount->getStorage();
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try {
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// check if storage exists
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$storage->checkStorageAvailability();
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} catch (StorageInvalidException $e) {
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// note: checkStorageAvailability will already remove the invalid share
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Util::writeLog(
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'federatedfilesharing',
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'Invalid remote storage: ' . get_class($e) . ': ' . $e->getMessage(),
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Util::DEBUG
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);
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return new JSONResponse(['message' => $this->l->t('Could not authenticate to remote share, password might be wrong')], Http::STATUS_BAD_REQUEST);
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} catch (\Exception $e) {
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Util::writeLog(
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'federatedfilesharing',
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'Invalid remote storage: ' . get_class($e) . ': ' . $e->getMessage(),
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Util::DEBUG
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);
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$externalManager->removeShare($mount->getMountPoint());
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return new JSONResponse(['message' => $this->l->t('Storage not valid')], Http::STATUS_BAD_REQUEST);
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}
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$result = $storage->file_exists('');
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if ($result) {
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try {
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$storage->getScanner()->scanAll();
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return new JSONResponse(
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[
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'message' => $this->l->t('Federated Share successfully added'),
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'legacyMount' => '1'
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]
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);
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} catch (StorageInvalidException $e) {
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Util::writeLog(
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'federatedfilesharing',
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'Invalid remote storage: ' . get_class($e) . ': ' . $e->getMessage(),
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Util::DEBUG
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);
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return new JSONResponse(['message' => $this->l->t('Storage not valid')], Http::STATUS_BAD_REQUEST);
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} catch (\Exception $e) {
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Util::writeLog(
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'federatedfilesharing',
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'Invalid remote storage: ' . get_class($e) . ': ' . $e->getMessage(),
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Util::DEBUG
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);
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return new JSONResponse(['message' => $this->l->t('Couldn\'t add remote share')], Http::STATUS_BAD_REQUEST);
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}
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} else {
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$externalManager->removeShare($mount->getMountPoint());
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Util::writeLog(
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'federatedfilesharing',
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'Couldn\'t add remote share',
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Util::DEBUG
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);
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return new JSONResponse(['message' => $this->l->t('Couldn\'t add remote share')], Http::STATUS_BAD_REQUEST);
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}
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}
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}
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