1137 lines
33 KiB
PHP
1137 lines
33 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 Arthur Schiwon <blizzz@arthur-schiwon.de>
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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 Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Georg Ehrke <oc.list@georgehrke.com>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Maxence Lange <maxence@artificial-owl.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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* @author Thomas Müller <thomas.mueller@tmit.eu>
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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;
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use OC\Share20\Exception\InvalidShare;
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use OC\Share20\Share;
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use OCP\Constants;
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use OCP\DB\QueryBuilder\IQueryBuilder;
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use OCP\Federation\ICloudFederationProviderManager;
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use OCP\Federation\ICloudIdManager;
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use OCP\Files\Folder;
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use OCP\Files\IRootFolder;
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use OCP\Files\Node;
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use OCP\Files\NotFoundException;
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use OCP\IConfig;
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use OCP\IDBConnection;
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use OCP\IL10N;
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use OCP\ILogger;
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use OCP\IUserManager;
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use OCP\Share\Exceptions\GenericShareException;
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use OCP\Share\Exceptions\ShareNotFound;
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use OCP\Share\IShare;
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use OCP\Share\IShareProvider;
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/**
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* Class FederatedShareProvider
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*
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* @package OCA\FederatedFileSharing
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*/
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class FederatedShareProvider implements IShareProvider {
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public const SHARE_TYPE_REMOTE = 6;
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/** @var IDBConnection */
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private $dbConnection;
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/** @var AddressHandler */
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private $addressHandler;
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/** @var Notifications */
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private $notifications;
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/** @var TokenHandler */
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private $tokenHandler;
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/** @var IL10N */
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private $l;
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/** @var ILogger */
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private $logger;
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/** @var IRootFolder */
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private $rootFolder;
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/** @var IConfig */
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private $config;
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/** @var string */
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private $externalShareTable = 'share_external';
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/** @var IUserManager */
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private $userManager;
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/** @var ICloudIdManager */
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private $cloudIdManager;
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/** @var \OCP\GlobalScale\IConfig */
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private $gsConfig;
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/** @var ICloudFederationProviderManager */
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private $cloudFederationProviderManager;
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/** @var array list of supported share types */
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private $supportedShareType = [IShare::TYPE_REMOTE_GROUP, IShare::TYPE_REMOTE, IShare::TYPE_CIRCLE];
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/**
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* DefaultShareProvider constructor.
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*
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* @param IDBConnection $connection
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* @param AddressHandler $addressHandler
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* @param Notifications $notifications
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* @param TokenHandler $tokenHandler
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* @param IL10N $l10n
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* @param ILogger $logger
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* @param IRootFolder $rootFolder
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* @param IConfig $config
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* @param IUserManager $userManager
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* @param ICloudIdManager $cloudIdManager
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* @param \OCP\GlobalScale\IConfig $globalScaleConfig
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* @param ICloudFederationProviderManager $cloudFederationProviderManager
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*/
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public function __construct(
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IDBConnection $connection,
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AddressHandler $addressHandler,
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Notifications $notifications,
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TokenHandler $tokenHandler,
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IL10N $l10n,
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ILogger $logger,
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IRootFolder $rootFolder,
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IConfig $config,
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IUserManager $userManager,
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ICloudIdManager $cloudIdManager,
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\OCP\GlobalScale\IConfig $globalScaleConfig,
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ICloudFederationProviderManager $cloudFederationProviderManager
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) {
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$this->dbConnection = $connection;
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$this->addressHandler = $addressHandler;
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$this->notifications = $notifications;
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$this->tokenHandler = $tokenHandler;
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$this->l = $l10n;
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$this->logger = $logger;
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$this->rootFolder = $rootFolder;
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$this->config = $config;
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$this->userManager = $userManager;
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$this->cloudIdManager = $cloudIdManager;
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$this->gsConfig = $globalScaleConfig;
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$this->cloudFederationProviderManager = $cloudFederationProviderManager;
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}
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/**
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* Return the identifier of this provider.
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*
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* @return string Containing only [a-zA-Z0-9]
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*/
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public function identifier() {
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return 'ocFederatedSharing';
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}
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/**
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* Share a path
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*
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* @param IShare $share
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* @return IShare The share object
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* @throws ShareNotFound
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* @throws \Exception
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*/
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public function create(IShare $share) {
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$shareWith = $share->getSharedWith();
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$itemSource = $share->getNodeId();
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$itemType = $share->getNodeType();
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$permissions = $share->getPermissions();
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$sharedBy = $share->getSharedBy();
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$shareType = $share->getShareType();
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if ($shareType === \OCP\Share::SHARE_TYPE_REMOTE_GROUP &&
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!$this->isOutgoingServer2serverGroupShareEnabled()
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) {
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$message = 'It is not allowed to send federated group shares from this server.';
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$message_t = $this->l->t('It is not allowed to send federated group shares from this server.');
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$this->logger->debug($message, ['app' => 'Federated File Sharing']);
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throw new \Exception($message_t);
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}
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/*
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* Check if file is not already shared with the remote user
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*/
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$alreadyShared = $this->getSharedWith($shareWith, \OCP\Share::SHARE_TYPE_REMOTE, $share->getNode(), 1, 0);
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$alreadySharedGroup = $this->getSharedWith($shareWith, \OCP\Share::SHARE_TYPE_REMOTE_GROUP, $share->getNode(), 1, 0);
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if (!empty($alreadyShared) || !empty($alreadySharedGroup)) {
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$message = 'Sharing %1$s failed, because this item is already shared with %2$s';
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$message_t = $this->l->t('Sharing %1$s failed, because this item is already shared with user %2$s', [$share->getNode()->getName(), $shareWith]);
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$this->logger->debug(sprintf($message, $share->getNode()->getName(), $shareWith), ['app' => 'Federated File Sharing']);
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throw new \Exception($message_t);
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}
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// don't allow federated shares if source and target server are the same
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$cloudId = $this->cloudIdManager->resolveCloudId($shareWith);
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$currentServer = $this->addressHandler->generateRemoteURL();
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$currentUser = $sharedBy;
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if ($this->addressHandler->compareAddresses($cloudId->getUser(), $cloudId->getRemote(), $currentUser, $currentServer)) {
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$message = 'Not allowed to create a federated share with the same user.';
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$message_t = $this->l->t('Not allowed to create a federated share with the same user');
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$this->logger->debug($message, ['app' => 'Federated File Sharing']);
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throw new \Exception($message_t);
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}
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// Federated shares always have read permissions
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if (($share->getPermissions() & Constants::PERMISSION_READ) === 0) {
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$message = 'Federated shares require read permissions';
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$message_t = $this->l->t('Federated shares require read permissions');
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$this->logger->debug($message, ['app' => 'Federated File Sharing']);
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throw new \Exception($message_t);
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}
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$share->setSharedWith($cloudId->getId());
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try {
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$remoteShare = $this->getShareFromExternalShareTable($share);
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} catch (ShareNotFound $e) {
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$remoteShare = null;
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}
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if ($remoteShare) {
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try {
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$ownerCloudId = $this->cloudIdManager->getCloudId($remoteShare['owner'], $remoteShare['remote']);
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$shareId = $this->addShareToDB($itemSource, $itemType, $shareWith, $sharedBy, $ownerCloudId->getId(), $permissions, 'tmp_token_' . time(), $shareType);
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$share->setId($shareId);
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list($token, $remoteId) = $this->askOwnerToReShare($shareWith, $share, $shareId);
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// remote share was create successfully if we get a valid token as return
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$send = is_string($token) && $token !== '';
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} catch (\Exception $e) {
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// fall back to old re-share behavior if the remote server
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// doesn't support flat re-shares (was introduced with Nextcloud 9.1)
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$this->removeShareFromTable($share);
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$shareId = $this->createFederatedShare($share);
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}
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if ($send) {
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$this->updateSuccessfulReshare($shareId, $token);
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$this->storeRemoteId($shareId, $remoteId);
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} else {
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$this->removeShareFromTable($share);
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$message_t = $this->l->t('File is already shared with %s', [$shareWith]);
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throw new \Exception($message_t);
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}
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} else {
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$shareId = $this->createFederatedShare($share);
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}
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$data = $this->getRawShare($shareId);
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return $this->createShareObject($data);
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}
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/**
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* create federated share and inform the recipient
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*
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* @param IShare $share
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* @return int
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* @throws ShareNotFound
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* @throws \Exception
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*/
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protected function createFederatedShare(IShare $share) {
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$token = $this->tokenHandler->generateToken();
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$shareId = $this->addShareToDB(
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$share->getNodeId(),
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$share->getNodeType(),
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$share->getSharedWith(),
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$share->getSharedBy(),
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$share->getShareOwner(),
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$share->getPermissions(),
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$token,
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$share->getShareType()
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);
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$failure = false;
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try {
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$sharedByFederatedId = $share->getSharedBy();
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if ($this->userManager->userExists($sharedByFederatedId)) {
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$cloudId = $this->cloudIdManager->getCloudId($sharedByFederatedId, $this->addressHandler->generateRemoteURL());
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$sharedByFederatedId = $cloudId->getId();
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}
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$ownerCloudId = $this->cloudIdManager->getCloudId($share->getShareOwner(), $this->addressHandler->generateRemoteURL());
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$send = $this->notifications->sendRemoteShare(
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$token,
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$share->getSharedWith(),
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$share->getNode()->getName(),
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$shareId,
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$share->getShareOwner(),
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$ownerCloudId->getId(),
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$share->getSharedBy(),
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$sharedByFederatedId,
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$share->getShareType()
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);
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if ($send === false) {
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$failure = true;
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}
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} catch (\Exception $e) {
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$this->logger->logException($e, [
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'message' => 'Failed to notify remote server of federated share, removing share.',
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'level' => ILogger::ERROR,
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'app' => 'federatedfilesharing',
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]);
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$failure = true;
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}
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if ($failure) {
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$this->removeShareFromTableById($shareId);
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$message_t = $this->l->t('Sharing %1$s failed, could not find %2$s, maybe the server is currently unreachable or uses a self-signed certificate.',
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[$share->getNode()->getName(), $share->getSharedWith()]);
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throw new \Exception($message_t);
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}
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return $shareId;
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}
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/**
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* @param string $shareWith
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* @param IShare $share
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* @param string $shareId internal share Id
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* @return array
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* @throws \Exception
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*/
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protected function askOwnerToReShare($shareWith, IShare $share, $shareId) {
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$remoteShare = $this->getShareFromExternalShareTable($share);
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$token = $remoteShare['share_token'];
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$remoteId = $remoteShare['remote_id'];
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$remote = $remoteShare['remote'];
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list($token, $remoteId) = $this->notifications->requestReShare(
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$token,
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$remoteId,
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$shareId,
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$remote,
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$shareWith,
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$share->getPermissions(),
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$share->getNode()->getName()
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);
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return [$token, $remoteId];
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}
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/**
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* get federated share from the share_external table but exclude mounted link shares
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*
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* @param IShare $share
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* @return array
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* @throws ShareNotFound
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*/
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protected function getShareFromExternalShareTable(IShare $share) {
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$query = $this->dbConnection->getQueryBuilder();
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$query->select('*')->from($this->externalShareTable)
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->where($query->expr()->eq('user', $query->createNamedParameter($share->getShareOwner())))
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->andWhere($query->expr()->eq('mountpoint', $query->createNamedParameter($share->getTarget())));
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$result = $query->execute()->fetchAll();
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if (isset($result[0]) && (int)$result[0]['remote_id'] > 0) {
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return $result[0];
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}
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throw new ShareNotFound('share not found in share_external table');
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}
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/**
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* add share to the database and return the ID
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*
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* @param int $itemSource
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* @param string $itemType
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* @param string $shareWith
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* @param string $sharedBy
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* @param string $uidOwner
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* @param int $permissions
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* @param string $token
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* @param int $shareType
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* @return int
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*/
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private function addShareToDB($itemSource, $itemType, $shareWith, $sharedBy, $uidOwner, $permissions, $token, $shareType) {
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$qb = $this->dbConnection->getQueryBuilder();
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$qb->insert('share')
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->setValue('share_type', $qb->createNamedParameter($shareType))
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->setValue('item_type', $qb->createNamedParameter($itemType))
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->setValue('item_source', $qb->createNamedParameter($itemSource))
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->setValue('file_source', $qb->createNamedParameter($itemSource))
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->setValue('share_with', $qb->createNamedParameter($shareWith))
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->setValue('uid_owner', $qb->createNamedParameter($uidOwner))
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->setValue('uid_initiator', $qb->createNamedParameter($sharedBy))
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->setValue('permissions', $qb->createNamedParameter($permissions))
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->setValue('token', $qb->createNamedParameter($token))
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->setValue('stime', $qb->createNamedParameter(time()));
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/*
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* Added to fix https://github.com/owncloud/core/issues/22215
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* Can be removed once we get rid of ajax/share.php
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*/
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$qb->setValue('file_target', $qb->createNamedParameter(''));
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$qb->execute();
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$id = $qb->getLastInsertId();
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return (int)$id;
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}
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/**
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* Update a share
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*
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* @param IShare $share
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* @return IShare The share object
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*/
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public function update(IShare $share) {
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/*
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* We allow updating the permissions of federated shares
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*/
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$qb = $this->dbConnection->getQueryBuilder();
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$qb->update('share')
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->where($qb->expr()->eq('id', $qb->createNamedParameter($share->getId())))
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->set('permissions', $qb->createNamedParameter($share->getPermissions()))
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->set('uid_owner', $qb->createNamedParameter($share->getShareOwner()))
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->set('uid_initiator', $qb->createNamedParameter($share->getSharedBy()))
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->execute();
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// send the updated permission to the owner/initiator, if they are not the same
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if ($share->getShareOwner() !== $share->getSharedBy()) {
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$this->sendPermissionUpdate($share);
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}
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return $share;
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}
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/**
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* send the updated permission to the owner/initiator, if they are not the same
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*
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* @param IShare $share
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* @throws ShareNotFound
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* @throws \OC\HintException
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*/
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protected function sendPermissionUpdate(IShare $share) {
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$remoteId = $this->getRemoteId($share);
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// if the local user is the owner we send the permission change to the initiator
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if ($this->userManager->userExists($share->getShareOwner())) {
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list(, $remote) = $this->addressHandler->splitUserRemote($share->getSharedBy());
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} else { // ... if not we send the permission change to the owner
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list(, $remote) = $this->addressHandler->splitUserRemote($share->getShareOwner());
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}
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$this->notifications->sendPermissionChange($remote, $remoteId, $share->getToken(), $share->getPermissions());
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}
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/**
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* update successful reShare with the correct token
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*
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* @param int $shareId
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* @param string $token
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*/
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protected function updateSuccessfulReShare($shareId, $token) {
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$query = $this->dbConnection->getQueryBuilder();
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$query->update('share')
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->where($query->expr()->eq('id', $query->createNamedParameter($shareId)))
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->set('token', $query->createNamedParameter($token))
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->execute();
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}
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/**
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* store remote ID in federated reShare table
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*
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* @param $shareId
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* @param $remoteId
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*/
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public function storeRemoteId($shareId, $remoteId) {
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$query = $this->dbConnection->getQueryBuilder();
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$query->insert('federated_reshares')
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->values(
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[
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'share_id' => $query->createNamedParameter($shareId),
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'remote_id' => $query->createNamedParameter($remoteId),
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]
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);
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$query->execute();
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}
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/**
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* get share ID on remote server for federated re-shares
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*
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* @param IShare $share
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* @return int
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* @throws ShareNotFound
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*/
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public function getRemoteId(IShare $share) {
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$query = $this->dbConnection->getQueryBuilder();
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$query->select('remote_id')->from('federated_reshares')
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->where($query->expr()->eq('share_id', $query->createNamedParameter((int)$share->getId())));
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$data = $query->execute()->fetch();
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if (!is_array($data) || !isset($data['remote_id'])) {
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throw new ShareNotFound();
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}
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|
|
return (int)$data['remote_id'];
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function move(IShare $share, $recipient) {
|
|
/*
|
|
* This function does nothing yet as it is just for outgoing
|
|
* federated shares.
|
|
*/
|
|
return $share;
|
|
}
|
|
|
|
/**
|
|
* Get all children of this share
|
|
*
|
|
* @param IShare $parent
|
|
* @return IShare[]
|
|
*/
|
|
public function getChildren(IShare $parent) {
|
|
$children = [];
|
|
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
$qb->select('*')
|
|
->from('share')
|
|
->where($qb->expr()->eq('parent', $qb->createNamedParameter($parent->getId())))
|
|
->andWhere($qb->expr()->in('share_type', $qb->createNamedParameter($this->supportedShareType, IQueryBuilder::PARAM_INT_ARRAY)))
|
|
->orderBy('id');
|
|
|
|
$cursor = $qb->execute();
|
|
while ($data = $cursor->fetch()) {
|
|
$children[] = $this->createShareObject($data);
|
|
}
|
|
$cursor->closeCursor();
|
|
|
|
return $children;
|
|
}
|
|
|
|
/**
|
|
* Delete a share (owner unShares the file)
|
|
*
|
|
* @param IShare $share
|
|
* @throws ShareNotFound
|
|
* @throws \OC\HintException
|
|
*/
|
|
public function delete(IShare $share) {
|
|
list(, $remote) = $this->addressHandler->splitUserRemote($share->getSharedWith());
|
|
|
|
// if the local user is the owner we can send the unShare request directly...
|
|
if ($this->userManager->userExists($share->getShareOwner())) {
|
|
$this->notifications->sendRemoteUnShare($remote, $share->getId(), $share->getToken());
|
|
$this->revokeShare($share, true);
|
|
} else { // ... if not we need to correct ID for the unShare request
|
|
$remoteId = $this->getRemoteId($share);
|
|
$this->notifications->sendRemoteUnShare($remote, $remoteId, $share->getToken());
|
|
$this->revokeShare($share, false);
|
|
}
|
|
|
|
// only remove the share when all messages are send to not lose information
|
|
// about the share to early
|
|
$this->removeShareFromTable($share);
|
|
}
|
|
|
|
/**
|
|
* in case of a re-share we need to send the other use (initiator or owner)
|
|
* a message that the file was unshared
|
|
*
|
|
* @param IShare $share
|
|
* @param bool $isOwner the user can either be the owner or the user who re-sahred it
|
|
* @throws ShareNotFound
|
|
* @throws \OC\HintException
|
|
*/
|
|
protected function revokeShare($share, $isOwner) {
|
|
if ($this->userManager->userExists($share->getShareOwner()) && $this->userManager->userExists($share->getSharedBy())) {
|
|
// If both the owner and the initiator of the share are local users we don't have to notify anybody else
|
|
return;
|
|
}
|
|
|
|
// also send a unShare request to the initiator, if this is a different user than the owner
|
|
if ($share->getShareOwner() !== $share->getSharedBy()) {
|
|
if ($isOwner) {
|
|
list(, $remote) = $this->addressHandler->splitUserRemote($share->getSharedBy());
|
|
} else {
|
|
list(, $remote) = $this->addressHandler->splitUserRemote($share->getShareOwner());
|
|
}
|
|
$remoteId = $this->getRemoteId($share);
|
|
$this->notifications->sendRevokeShare($remote, $remoteId, $share->getToken());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* remove share from table
|
|
*
|
|
* @param IShare $share
|
|
*/
|
|
public function removeShareFromTable(IShare $share) {
|
|
$this->removeShareFromTableById($share->getId());
|
|
}
|
|
|
|
/**
|
|
* remove share from table
|
|
*
|
|
* @param string $shareId
|
|
*/
|
|
private function removeShareFromTableById($shareId) {
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
$qb->delete('share')
|
|
->where($qb->expr()->eq('id', $qb->createNamedParameter($shareId)))
|
|
->andWhere($qb->expr()->neq('share_type', $qb->createNamedParameter(IShare::TYPE_CIRCLE)));
|
|
$qb->execute();
|
|
|
|
$qb->delete('federated_reshares')
|
|
->where($qb->expr()->eq('share_id', $qb->createNamedParameter($shareId)));
|
|
$qb->execute();
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function deleteFromSelf(IShare $share, $recipient) {
|
|
// nothing to do here. Technically deleteFromSelf in the context of federated
|
|
// shares is a umount of a external storage. This is handled here
|
|
// apps/files_sharing/lib/external/manager.php
|
|
// TODO move this code over to this app
|
|
}
|
|
|
|
public function restore(IShare $share, string $recipient): IShare {
|
|
throw new GenericShareException('not implemented');
|
|
}
|
|
|
|
|
|
public function getSharesInFolder($userId, Folder $node, $reshares) {
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
$qb->select('*')
|
|
->from('share', 's')
|
|
->andWhere($qb->expr()->orX(
|
|
$qb->expr()->eq('item_type', $qb->createNamedParameter('file')),
|
|
$qb->expr()->eq('item_type', $qb->createNamedParameter('folder'))
|
|
))
|
|
->andWhere(
|
|
$qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_REMOTE))
|
|
);
|
|
|
|
/**
|
|
* Reshares for this user are shares where they are the owner.
|
|
*/
|
|
if ($reshares === false) {
|
|
$qb->andWhere($qb->expr()->eq('uid_initiator', $qb->createNamedParameter($userId)));
|
|
} else {
|
|
$qb->andWhere(
|
|
$qb->expr()->orX(
|
|
$qb->expr()->eq('uid_owner', $qb->createNamedParameter($userId)),
|
|
$qb->expr()->eq('uid_initiator', $qb->createNamedParameter($userId))
|
|
)
|
|
);
|
|
}
|
|
|
|
$qb->innerJoin('s', 'filecache' ,'f', $qb->expr()->eq('s.file_source', 'f.fileid'));
|
|
$qb->andWhere($qb->expr()->eq('f.parent', $qb->createNamedParameter($node->getId())));
|
|
|
|
$qb->orderBy('id');
|
|
|
|
$cursor = $qb->execute();
|
|
$shares = [];
|
|
while ($data = $cursor->fetch()) {
|
|
$shares[$data['fileid']][] = $this->createShareObject($data);
|
|
}
|
|
$cursor->closeCursor();
|
|
|
|
return $shares;
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function getSharesBy($userId, $shareType, $node, $reshares, $limit, $offset) {
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
$qb->select('*')
|
|
->from('share');
|
|
|
|
$qb->andWhere($qb->expr()->eq('share_type', $qb->createNamedParameter($shareType)));
|
|
|
|
/**
|
|
* Reshares for this user are shares where they are the owner.
|
|
*/
|
|
if ($reshares === false) {
|
|
//Special case for old shares created via the web UI
|
|
$or1 = $qb->expr()->andX(
|
|
$qb->expr()->eq('uid_owner', $qb->createNamedParameter($userId)),
|
|
$qb->expr()->isNull('uid_initiator')
|
|
);
|
|
|
|
$qb->andWhere(
|
|
$qb->expr()->orX(
|
|
$qb->expr()->eq('uid_initiator', $qb->createNamedParameter($userId)),
|
|
$or1
|
|
)
|
|
);
|
|
} else {
|
|
$qb->andWhere(
|
|
$qb->expr()->orX(
|
|
$qb->expr()->eq('uid_owner', $qb->createNamedParameter($userId)),
|
|
$qb->expr()->eq('uid_initiator', $qb->createNamedParameter($userId))
|
|
)
|
|
);
|
|
}
|
|
|
|
if ($node !== null) {
|
|
$qb->andWhere($qb->expr()->eq('file_source', $qb->createNamedParameter($node->getId())));
|
|
}
|
|
|
|
if ($limit !== -1) {
|
|
$qb->setMaxResults($limit);
|
|
}
|
|
|
|
$qb->setFirstResult($offset);
|
|
$qb->orderBy('id');
|
|
|
|
$cursor = $qb->execute();
|
|
$shares = [];
|
|
while ($data = $cursor->fetch()) {
|
|
$shares[] = $this->createShareObject($data);
|
|
}
|
|
$cursor->closeCursor();
|
|
|
|
return $shares;
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function getShareById($id, $recipientId = null) {
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
|
|
$qb->select('*')
|
|
->from('share')
|
|
->where($qb->expr()->eq('id', $qb->createNamedParameter($id)))
|
|
->andWhere($qb->expr()->in('share_type', $qb->createNamedParameter($this->supportedShareType, IQueryBuilder::PARAM_INT_ARRAY)));
|
|
|
|
$cursor = $qb->execute();
|
|
$data = $cursor->fetch();
|
|
$cursor->closeCursor();
|
|
|
|
if ($data === false) {
|
|
throw new ShareNotFound('Can not find share with ID: ' . $id);
|
|
}
|
|
|
|
try {
|
|
$share = $this->createShareObject($data);
|
|
} catch (InvalidShare $e) {
|
|
throw new ShareNotFound();
|
|
}
|
|
|
|
return $share;
|
|
}
|
|
|
|
/**
|
|
* Get shares for a given path
|
|
*
|
|
* @param \OCP\Files\Node $path
|
|
* @return IShare[]
|
|
*/
|
|
public function getSharesByPath(Node $path) {
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
|
|
// get federated user shares
|
|
$cursor = $qb->select('*')
|
|
->from('share')
|
|
->andWhere($qb->expr()->eq('file_source', $qb->createNamedParameter($path->getId())))
|
|
->andWhere($qb->expr()->in('share_type', $qb->createNamedParameter($this->supportedShareType, IQueryBuilder::PARAM_INT_ARRAY)))
|
|
->execute();
|
|
|
|
$shares = [];
|
|
while ($data = $cursor->fetch()) {
|
|
$shares[] = $this->createShareObject($data);
|
|
}
|
|
$cursor->closeCursor();
|
|
|
|
return $shares;
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function getSharedWith($userId, $shareType, $node, $limit, $offset) {
|
|
/** @var IShare[] $shares */
|
|
$shares = [];
|
|
|
|
//Get shares directly with this user
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
$qb->select('*')
|
|
->from('share');
|
|
|
|
// Order by id
|
|
$qb->orderBy('id');
|
|
|
|
// Set limit and offset
|
|
if ($limit !== -1) {
|
|
$qb->setMaxResults($limit);
|
|
}
|
|
$qb->setFirstResult($offset);
|
|
|
|
$qb->where($qb->expr()->in('share_type', $qb->createNamedParameter($this->supportedShareType, IQueryBuilder::PARAM_INT_ARRAY)));
|
|
$qb->andWhere($qb->expr()->eq('share_with', $qb->createNamedParameter($userId)));
|
|
|
|
// Filter by node if provided
|
|
if ($node !== null) {
|
|
$qb->andWhere($qb->expr()->eq('file_source', $qb->createNamedParameter($node->getId())));
|
|
}
|
|
|
|
$cursor = $qb->execute();
|
|
|
|
while ($data = $cursor->fetch()) {
|
|
$shares[] = $this->createShareObject($data);
|
|
}
|
|
$cursor->closeCursor();
|
|
|
|
|
|
return $shares;
|
|
}
|
|
|
|
/**
|
|
* Get a share by token
|
|
*
|
|
* @param string $token
|
|
* @return IShare
|
|
* @throws ShareNotFound
|
|
*/
|
|
public function getShareByToken($token) {
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
|
|
$cursor = $qb->select('*')
|
|
->from('share')
|
|
->where($qb->expr()->in('share_type', $qb->createNamedParameter($this->supportedShareType, IQueryBuilder::PARAM_INT_ARRAY)))
|
|
->andWhere($qb->expr()->eq('token', $qb->createNamedParameter($token)))
|
|
->execute();
|
|
|
|
$data = $cursor->fetch();
|
|
|
|
if ($data === false) {
|
|
throw new ShareNotFound('Share not found', $this->l->t('Could not find share'));
|
|
}
|
|
|
|
try {
|
|
$share = $this->createShareObject($data);
|
|
} catch (InvalidShare $e) {
|
|
throw new ShareNotFound('Share not found', $this->l->t('Could not find share'));
|
|
}
|
|
|
|
return $share;
|
|
}
|
|
|
|
/**
|
|
* get database row of a give share
|
|
*
|
|
* @param $id
|
|
* @return array
|
|
* @throws ShareNotFound
|
|
*/
|
|
private function getRawShare($id) {
|
|
|
|
// Now fetch the inserted share and create a complete share object
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
$qb->select('*')
|
|
->from('share')
|
|
->where($qb->expr()->eq('id', $qb->createNamedParameter($id)));
|
|
|
|
$cursor = $qb->execute();
|
|
$data = $cursor->fetch();
|
|
$cursor->closeCursor();
|
|
|
|
if ($data === false) {
|
|
throw new ShareNotFound;
|
|
}
|
|
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* Create a share object from an database row
|
|
*
|
|
* @param array $data
|
|
* @return IShare
|
|
* @throws InvalidShare
|
|
* @throws ShareNotFound
|
|
*/
|
|
private function createShareObject($data) {
|
|
$share = new Share($this->rootFolder, $this->userManager);
|
|
$share->setId((int)$data['id'])
|
|
->setShareType((int)$data['share_type'])
|
|
->setPermissions((int)$data['permissions'])
|
|
->setTarget($data['file_target'])
|
|
->setMailSend((bool)$data['mail_send'])
|
|
->setToken($data['token']);
|
|
|
|
$shareTime = new \DateTime();
|
|
$shareTime->setTimestamp((int)$data['stime']);
|
|
$share->setShareTime($shareTime);
|
|
$share->setSharedWith($data['share_with']);
|
|
|
|
if ($data['uid_initiator'] !== null) {
|
|
$share->setShareOwner($data['uid_owner']);
|
|
$share->setSharedBy($data['uid_initiator']);
|
|
} else {
|
|
//OLD SHARE
|
|
$share->setSharedBy($data['uid_owner']);
|
|
$path = $this->getNode($share->getSharedBy(), (int)$data['file_source']);
|
|
|
|
$owner = $path->getOwner();
|
|
$share->setShareOwner($owner->getUID());
|
|
}
|
|
|
|
$share->setNodeId((int)$data['file_source']);
|
|
$share->setNodeType($data['item_type']);
|
|
|
|
$share->setProviderId($this->identifier());
|
|
|
|
return $share;
|
|
}
|
|
|
|
/**
|
|
* Get the node with file $id for $user
|
|
*
|
|
* @param string $userId
|
|
* @param int $id
|
|
* @return \OCP\Files\File|\OCP\Files\Folder
|
|
* @throws InvalidShare
|
|
*/
|
|
private function getNode($userId, $id) {
|
|
try {
|
|
$userFolder = $this->rootFolder->getUserFolder($userId);
|
|
} catch (NotFoundException $e) {
|
|
throw new InvalidShare();
|
|
}
|
|
|
|
$nodes = $userFolder->getById($id);
|
|
|
|
if (empty($nodes)) {
|
|
throw new InvalidShare();
|
|
}
|
|
|
|
return $nodes[0];
|
|
}
|
|
|
|
/**
|
|
* A user is deleted from the system
|
|
* So clean up the relevant shares.
|
|
*
|
|
* @param string $uid
|
|
* @param int $shareType
|
|
*/
|
|
public function userDeleted($uid, $shareType) {
|
|
//TODO: probabaly a good idea to send unshare info to remote servers
|
|
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
|
|
$qb->delete('share')
|
|
->where($qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_REMOTE)))
|
|
->andWhere($qb->expr()->eq('uid_owner', $qb->createNamedParameter($uid)))
|
|
->execute();
|
|
}
|
|
|
|
/**
|
|
* This provider does not handle groups
|
|
*
|
|
* @param string $gid
|
|
*/
|
|
public function groupDeleted($gid) {
|
|
// We don't handle groups here
|
|
}
|
|
|
|
/**
|
|
* This provider does not handle groups
|
|
*
|
|
* @param string $uid
|
|
* @param string $gid
|
|
*/
|
|
public function userDeletedFromGroup($uid, $gid) {
|
|
// We don't handle groups here
|
|
}
|
|
|
|
/**
|
|
* check if users from other Nextcloud instances are allowed to mount public links share by this instance
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isOutgoingServer2serverShareEnabled() {
|
|
if ($this->gsConfig->onlyInternalFederation()) {
|
|
return false;
|
|
}
|
|
$result = $this->config->getAppValue('files_sharing', 'outgoing_server2server_share_enabled', 'yes');
|
|
return ($result === 'yes');
|
|
}
|
|
|
|
/**
|
|
* check if users are allowed to mount public links from other Nextclouds
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isIncomingServer2serverShareEnabled() {
|
|
if ($this->gsConfig->onlyInternalFederation()) {
|
|
return false;
|
|
}
|
|
$result = $this->config->getAppValue('files_sharing', 'incoming_server2server_share_enabled', 'yes');
|
|
return ($result === 'yes');
|
|
}
|
|
|
|
|
|
/**
|
|
* check if users from other Nextcloud instances are allowed to send federated group shares
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isOutgoingServer2serverGroupShareEnabled() {
|
|
if ($this->gsConfig->onlyInternalFederation()) {
|
|
return false;
|
|
}
|
|
$result = $this->config->getAppValue('files_sharing', 'outgoing_server2server_group_share_enabled', 'no');
|
|
return ($result === 'yes');
|
|
}
|
|
|
|
/**
|
|
* check if users are allowed to receive federated group shares
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isIncomingServer2serverGroupShareEnabled() {
|
|
if ($this->gsConfig->onlyInternalFederation()) {
|
|
return false;
|
|
}
|
|
$result = $this->config->getAppValue('files_sharing', 'incoming_server2server_group_share_enabled', 'no');
|
|
return ($result === 'yes');
|
|
}
|
|
|
|
/**
|
|
* check if federated group sharing is supported, therefore the OCM API need to be enabled
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isFederatedGroupSharingSupported() {
|
|
return $this->cloudFederationProviderManager->isReady();
|
|
}
|
|
|
|
/**
|
|
* Check if querying sharees on the lookup server is enabled
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isLookupServerQueriesEnabled() {
|
|
// in a global scale setup we should always query the lookup server
|
|
if ($this->gsConfig->isGlobalScaleEnabled()) {
|
|
return true;
|
|
}
|
|
$result = $this->config->getAppValue('files_sharing', 'lookupServerEnabled', 'yes');
|
|
return ($result === 'yes');
|
|
}
|
|
|
|
|
|
/**
|
|
* Check if it is allowed to publish user specific data to the lookup server
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isLookupServerUploadEnabled() {
|
|
// in a global scale setup the admin is responsible to keep the lookup server up-to-date
|
|
if ($this->gsConfig->isGlobalScaleEnabled()) {
|
|
return false;
|
|
}
|
|
$result = $this->config->getAppValue('files_sharing', 'lookupServerUploadEnabled', 'yes');
|
|
return ($result === 'yes');
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function getAccessList($nodes, $currentAccess) {
|
|
$ids = [];
|
|
foreach ($nodes as $node) {
|
|
$ids[] = $node->getId();
|
|
}
|
|
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
$qb->select('share_with', 'token', 'file_source')
|
|
->from('share')
|
|
->where($qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_REMOTE)))
|
|
->andWhere($qb->expr()->in('file_source', $qb->createNamedParameter($ids, IQueryBuilder::PARAM_INT_ARRAY)))
|
|
->andWhere($qb->expr()->orX(
|
|
$qb->expr()->eq('item_type', $qb->createNamedParameter('file')),
|
|
$qb->expr()->eq('item_type', $qb->createNamedParameter('folder'))
|
|
));
|
|
$cursor = $qb->execute();
|
|
|
|
if ($currentAccess === false) {
|
|
$remote = $cursor->fetch() !== false;
|
|
$cursor->closeCursor();
|
|
|
|
return ['remote' => $remote];
|
|
}
|
|
|
|
$remote = [];
|
|
while ($row = $cursor->fetch()) {
|
|
$remote[$row['share_with']] = [
|
|
'node_id' => $row['file_source'],
|
|
'token' => $row['token'],
|
|
];
|
|
}
|
|
$cursor->closeCursor();
|
|
|
|
return ['remote' => $remote];
|
|
}
|
|
|
|
public function getAllShares(): iterable {
|
|
$qb = $this->dbConnection->getQueryBuilder();
|
|
|
|
$qb->select('*')
|
|
->from('share')
|
|
->where(
|
|
$qb->expr()->orX(
|
|
$qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share\IShare::TYPE_REMOTE)),
|
|
$qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share\IShare::TYPE_REMOTE_GROUP))
|
|
)
|
|
);
|
|
|
|
$cursor = $qb->execute();
|
|
while ($data = $cursor->fetch()) {
|
|
try {
|
|
$share = $this->createShareObject($data);
|
|
} catch (InvalidShare $e) {
|
|
continue;
|
|
} catch (ShareNotFound $e) {
|
|
continue;
|
|
}
|
|
|
|
yield $share;
|
|
}
|
|
$cursor->closeCursor();
|
|
}
|
|
}
|