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<?php |
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/** |
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* @author Viktar Dubiniuk <[email protected]> |
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* |
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* @copyright Copyright (c) 2018, ownCloud GmbH |
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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\Middleware; |
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use OCA\FederatedFileSharing\Address; |
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use OCA\FederatedFileSharing\AddressHandler; |
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use OCA\FederatedFileSharing\FederatedShareProvider; |
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use OCA\FederatedFileSharing\Ocm\Exception\BadRequestException; |
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use OCA\FederatedFileSharing\Ocm\Exception\ForbiddenException; |
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use OCA\FederatedFileSharing\Ocm\Exception\NotImplementedException; |
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use OCP\Constants; |
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use OCP\App\IAppManager; |
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use OCP\ILogger; |
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use OCP\IUserManager; |
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use OCP\Share; |
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use OCP\Share\IShare; |
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/** |
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* Class OcmMiddleware |
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* |
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* @package OCA\FederatedFileSharing\Controller\Middleware |
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*/ |
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class OcmMiddleware { |
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/** |
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* @var FederatedShareProvider |
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*/ |
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protected $federatedShareProvider; |
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/** |
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* @var IAppManager |
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*/ |
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protected $appManager; |
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/** |
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* @var IUserManager |
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*/ |
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protected $userManager; |
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/** |
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* @var AddressHandler |
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*/ |
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protected $addressHandler; |
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/** |
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* @var ILogger |
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*/ |
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protected $logger; |
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/** |
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* constructor. |
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* |
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* @param FederatedShareProvider $federatedShareProvider |
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* @param IAppManager $appManager |
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* @param IUserManager $userManager |
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* @param AddressHandler $addressHandler |
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* @param ILogger $logger |
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*/ |
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public function __construct( |
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FederatedShareProvider $federatedShareProvider, |
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IAppManager $appManager, |
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IUserManager $userManager, |
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AddressHandler $addressHandler, |
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ILogger $logger |
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) { |
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$this->federatedShareProvider = $federatedShareProvider; |
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$this->appManager = $appManager; |
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$this->userManager = $userManager; |
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$this->addressHandler = $addressHandler; |
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$this->logger = $logger; |
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} |
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/** |
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* Check if value an array has any null item |
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* |
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* @param string[] $params |
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* |
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* @return bool |
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* |
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* @throws BadRequestException |
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*/ |
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public function assertNotNull($params) { |
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if (\is_array($params)) { |
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$nullKeys = \array_keys( |
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\array_filter( |
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$params, |
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function ($b) { |
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return $b === null; |
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} |
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) |
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); |
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if (\count($nullKeys) > 0) { |
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$nullKeysAsString = \implode(',', $nullKeys); |
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throw new BadRequestException( |
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"Required parameters are missing: $nullKeysAsString" |
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); |
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} |
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} |
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} |
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/** |
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* Get share by id, validate its type and token |
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* |
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* @param int $id |
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* @param string $sharedSecret |
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* |
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* @return IShare |
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* |
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* @throws BadRequestException |
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* @throws ForbiddenException |
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*/ |
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public function getValidShare($id, $sharedSecret) { |
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try { |
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$share = $this->federatedShareProvider->getShareById($id); |
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} catch (Share\Exceptions\ShareNotFound $e) { |
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throw new BadRequestException("Share with id {$id} does not exist"); |
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} |
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if ($share->getShareType() !== FederatedShareProvider::SHARE_TYPE_REMOTE) { |
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throw new BadRequestException("Share with id {$id} does not exist"); |
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} |
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if ($share->getToken() !== $sharedSecret) { |
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throw new ForbiddenException("The secret does not match"); |
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} |
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return $share; |
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} |
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/** |
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* @param IShare $share |
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* |
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* @return void |
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* |
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* @throws BadRequestException |
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*/ |
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public function assertSharingPermissionSet(IShare $share) { |
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$reSharingAllowed = $share->getPermissions() & Constants::PERMISSION_SHARE; |
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if (!$reSharingAllowed) { |
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throw new BadRequestException("Owner restricted sharing for this resource"); |
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} |
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} |
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/** |
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* @param Address $user1 |
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* @param Address $user2 |
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* |
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* @return void |
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* |
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* @throws ForbiddenException |
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*/ |
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public function assertNotSameUser(Address $user1, Address $user2) { |
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if ($user1->equalTo($user2)) { |
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throw new ForbiddenException('Sharing back to the owner is not allowed'); |
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} |
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} |
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/** |
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* Make sure that incoming shares are enabled |
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* |
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* @return void |
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* |
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* @throws NotImplementedException |
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*/ |
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public function assertIncomingSharingEnabled() { |
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if (!$this->appManager->isEnabledForUser('files_sharing') |
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|| !$this->federatedShareProvider->isIncomingServer2serverShareEnabled() |
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) { |
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throw new NotImplementedException(); |
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} |
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} |
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/** |
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* Make sure that outgoing shares are enabled |
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* |
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* @return void |
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* |
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* @throws NotImplementedException |
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*/ |
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public function assertOutgoingSharingEnabled() { |
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if (!$this->appManager->isEnabledForUser('files_sharing') |
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|| !$this->federatedShareProvider->isOutgoingServer2serverShareEnabled() |
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) { |
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throw new NotImplementedException(); |
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} |
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} |
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} |
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owncloud /
core
