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1898 lines
58 KiB
1898 lines
58 KiB
<?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 Daniel Calviño Sánchez <danxuliu@gmail.com>
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* @author Daniel Kesselberg <mail@danielkesselberg.de>
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* @author Jan-Christoph Borchardt <hey@jancborchardt.net>
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* @author Joas Schilling <coding@schilljs.com>
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* @author John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>
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* @author Julius Härtl <jus@bitgrid.net>
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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 Maxence Lange <maxence@nextcloud.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Pauli Järvinen <pauli.jarvinen@gmail.com>
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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 Vincent Petry <pvince81@owncloud.com>
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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 OC\Share20;
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use OC\Cache\CappedMemoryCache;
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use OC\Files\Mount\MoveableMount;
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use OC\HintException;
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use OC\Share20\Exception\ProviderException;
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use OCA\Files_Sharing\ISharedStorage;
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use OCP\EventDispatcher\IEventDispatcher;
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use OCP\Files\File;
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use OCP\Files\Folder;
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use OCP\Files\IRootFolder;
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use OCP\Files\Mount\IMountManager;
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use OCP\Files\Node;
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use OCP\IConfig;
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use OCP\IGroupManager;
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use OCP\IL10N;
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use OCP\ILogger;
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use OCP\IURLGenerator;
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use OCP\IUser;
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use OCP\IUserManager;
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use OCP\L10N\IFactory;
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use OCP\Mail\IMailer;
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use OCP\Security\Events\ValidatePasswordPolicyEvent;
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use OCP\Security\IHasher;
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use OCP\Security\ISecureRandom;
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use OCP\Share;
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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\IManager;
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use OCP\Share\IProviderFactory;
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use OCP\Share\IShare;
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use OCP\Share\IShareProvider;
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use Symfony\Component\EventDispatcher\EventDispatcherInterface;
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use Symfony\Component\EventDispatcher\GenericEvent;
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/**
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* This class is the communication hub for all sharing related operations.
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*/
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class Manager implements IManager {
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/** @var IProviderFactory */
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private $factory;
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/** @var ILogger */
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private $logger;
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/** @var IConfig */
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private $config;
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/** @var ISecureRandom */
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private $secureRandom;
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/** @var IHasher */
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private $hasher;
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/** @var IMountManager */
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private $mountManager;
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/** @var IGroupManager */
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private $groupManager;
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/** @var IL10N */
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private $l;
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/** @var IFactory */
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private $l10nFactory;
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/** @var IUserManager */
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private $userManager;
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/** @var IRootFolder */
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private $rootFolder;
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/** @var CappedMemoryCache */
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private $sharingDisabledForUsersCache;
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/** @var EventDispatcherInterface */
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private $legacyDispatcher;
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/** @var LegacyHooks */
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private $legacyHooks;
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/** @var IMailer */
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private $mailer;
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/** @var IURLGenerator */
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private $urlGenerator;
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/** @var \OC_Defaults */
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private $defaults;
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/** @var IEventDispatcher */
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private $dispatcher;
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/**
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* Manager constructor.
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*
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* @param ILogger $logger
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* @param IConfig $config
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* @param ISecureRandom $secureRandom
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* @param IHasher $hasher
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* @param IMountManager $mountManager
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* @param IGroupManager $groupManager
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* @param IL10N $l
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* @param IFactory $l10nFactory
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* @param IProviderFactory $factory
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* @param IUserManager $userManager
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* @param IRootFolder $rootFolder
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* @param EventDispatcherInterface $eventDispatcher
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* @param IMailer $mailer
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* @param IURLGenerator $urlGenerator
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* @param \OC_Defaults $defaults
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*/
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public function __construct(
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ILogger $logger,
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IConfig $config,
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ISecureRandom $secureRandom,
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IHasher $hasher,
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IMountManager $mountManager,
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IGroupManager $groupManager,
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IL10N $l,
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IFactory $l10nFactory,
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IProviderFactory $factory,
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IUserManager $userManager,
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IRootFolder $rootFolder,
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EventDispatcherInterface $legacyDispatcher,
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IMailer $mailer,
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IURLGenerator $urlGenerator,
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\OC_Defaults $defaults,
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IEventDispatcher $dispatcher
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) {
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$this->logger = $logger;
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$this->config = $config;
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$this->secureRandom = $secureRandom;
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$this->hasher = $hasher;
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$this->mountManager = $mountManager;
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$this->groupManager = $groupManager;
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$this->l = $l;
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$this->l10nFactory = $l10nFactory;
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$this->factory = $factory;
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$this->userManager = $userManager;
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$this->rootFolder = $rootFolder;
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$this->legacyDispatcher = $legacyDispatcher;
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$this->sharingDisabledForUsersCache = new CappedMemoryCache();
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$this->legacyHooks = new LegacyHooks($this->legacyDispatcher);
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$this->mailer = $mailer;
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$this->urlGenerator = $urlGenerator;
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$this->defaults = $defaults;
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$this->dispatcher = $dispatcher;
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}
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/**
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* Convert from a full share id to a tuple (providerId, shareId)
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*
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* @param string $id
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* @return string[]
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*/
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private function splitFullId($id) {
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return explode(':', $id, 2);
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}
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/**
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* Verify if a password meets all requirements
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*
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* @param string $password
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* @throws \Exception
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*/
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protected function verifyPassword($password) {
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if ($password === null) {
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// No password is set, check if this is allowed.
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if ($this->shareApiLinkEnforcePassword()) {
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throw new \InvalidArgumentException('Passwords are enforced for link shares');
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}
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return;
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}
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// Let others verify the password
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try {
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$this->legacyDispatcher->dispatch(new ValidatePasswordPolicyEvent($password));
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} catch (HintException $e) {
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throw new \Exception($e->getHint());
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}
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}
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/**
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* Check for generic requirements before creating a share
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*
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* @param IShare $share
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* @throws \InvalidArgumentException
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* @throws GenericShareException
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*
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* @suppress PhanUndeclaredClassMethod
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*/
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protected function generalCreateChecks(IShare $share) {
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if ($share->getShareType() === IShare::TYPE_USER) {
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// We expect a valid user as sharedWith for user shares
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if (!$this->userManager->userExists($share->getSharedWith())) {
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throw new \InvalidArgumentException('SharedWith is not a valid user');
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}
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} elseif ($share->getShareType() === IShare::TYPE_GROUP) {
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// We expect a valid group as sharedWith for group shares
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if (!$this->groupManager->groupExists($share->getSharedWith())) {
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throw new \InvalidArgumentException('SharedWith is not a valid group');
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}
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} elseif ($share->getShareType() === IShare::TYPE_LINK) {
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if ($share->getSharedWith() !== null) {
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throw new \InvalidArgumentException('SharedWith should be empty');
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}
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} elseif ($share->getShareType() === IShare::TYPE_REMOTE) {
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if ($share->getSharedWith() === null) {
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throw new \InvalidArgumentException('SharedWith should not be empty');
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}
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} elseif ($share->getShareType() === IShare::TYPE_REMOTE_GROUP) {
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if ($share->getSharedWith() === null) {
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throw new \InvalidArgumentException('SharedWith should not be empty');
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}
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} elseif ($share->getShareType() === IShare::TYPE_EMAIL) {
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if ($share->getSharedWith() === null) {
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throw new \InvalidArgumentException('SharedWith should not be empty');
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}
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} elseif ($share->getShareType() === IShare::TYPE_CIRCLE) {
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$circle = \OCA\Circles\Api\v1\Circles::detailsCircle($share->getSharedWith());
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if ($circle === null) {
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throw new \InvalidArgumentException('SharedWith is not a valid circle');
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}
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} elseif ($share->getShareType() === IShare::TYPE_ROOM) {
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} else {
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// We can't handle other types yet
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throw new \InvalidArgumentException('unknown share type');
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}
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// Verify the initiator of the share is set
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if ($share->getSharedBy() === null) {
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throw new \InvalidArgumentException('SharedBy should be set');
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}
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// Cannot share with yourself
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if ($share->getShareType() === IShare::TYPE_USER &&
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$share->getSharedWith() === $share->getSharedBy()) {
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throw new \InvalidArgumentException('Can’t share with yourself');
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}
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// The path should be set
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if ($share->getNode() === null) {
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throw new \InvalidArgumentException('Path should be set');
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}
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// And it should be a file or a folder
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if (!($share->getNode() instanceof \OCP\Files\File) &&
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!($share->getNode() instanceof \OCP\Files\Folder)) {
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throw new \InvalidArgumentException('Path should be either a file or a folder');
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}
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// And you can't share your rootfolder
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if ($this->userManager->userExists($share->getSharedBy())) {
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$userFolder = $this->rootFolder->getUserFolder($share->getSharedBy());
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} else {
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$userFolder = $this->rootFolder->getUserFolder($share->getShareOwner());
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}
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if ($userFolder->getId() === $share->getNode()->getId()) {
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throw new \InvalidArgumentException('You can’t share your root folder');
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}
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// Check if we actually have share permissions
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if (!$share->getNode()->isShareable()) {
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$path = $userFolder->getRelativePath($share->getNode()->getPath());
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$message_t = $this->l->t('You are not allowed to share %s', [$path]);
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throw new GenericShareException($message_t, $message_t, 404);
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}
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// Permissions should be set
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if ($share->getPermissions() === null) {
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throw new \InvalidArgumentException('A share requires permissions');
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}
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$isFederatedShare = $share->getNode()->getStorage()->instanceOfStorage('\OCA\Files_Sharing\External\Storage');
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$permissions = 0;
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if (!$isFederatedShare && $share->getNode()->getOwner() && $share->getNode()->getOwner()->getUID() !== $share->getSharedBy()) {
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$userMounts = array_filter($userFolder->getById($share->getNode()->getId()), function ($mount) {
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// We need to filter since there might be other mountpoints that contain the file
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// e.g. if the user has access to the same external storage that the file is originating from
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return $mount->getStorage()->instanceOfStorage(ISharedStorage::class);
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});
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$userMount = array_shift($userMounts);
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if ($userMount === null) {
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throw new GenericShareException('Could not get proper share mount for ' . $share->getNode()->getId() . '. Failing since else the next calls are called with null');
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}
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$mount = $userMount->getMountPoint();
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// When it's a reshare use the parent share permissions as maximum
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$userMountPointId = $mount->getStorageRootId();
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$userMountPoints = $userFolder->getById($userMountPointId);
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$userMountPoint = array_shift($userMountPoints);
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if ($userMountPoint === null) {
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throw new GenericShareException('Could not get proper user mount for ' . $userMountPointId . '. Failing since else the next calls are called with null');
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}
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/* Check if this is an incoming share */
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$incomingShares = $this->getSharedWith($share->getSharedBy(), IShare::TYPE_USER, $userMountPoint, -1, 0);
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$incomingShares = array_merge($incomingShares, $this->getSharedWith($share->getSharedBy(), IShare::TYPE_GROUP, $userMountPoint, -1, 0));
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$incomingShares = array_merge($incomingShares, $this->getSharedWith($share->getSharedBy(), IShare::TYPE_CIRCLE, $userMountPoint, -1, 0));
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$incomingShares = array_merge($incomingShares, $this->getSharedWith($share->getSharedBy(), IShare::TYPE_ROOM, $userMountPoint, -1, 0));
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/** @var IShare[] $incomingShares */
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if (!empty($incomingShares)) {
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foreach ($incomingShares as $incomingShare) {
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$permissions |= $incomingShare->getPermissions();
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}
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}
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} else {
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/*
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* Quick fix for #23536
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* Non moveable mount points do not have update and delete permissions
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* while we 'most likely' do have that on the storage.
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*/
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$permissions = $share->getNode()->getPermissions();
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if (!($share->getNode()->getMountPoint() instanceof MoveableMount)) {
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$permissions |= \OCP\Constants::PERMISSION_DELETE | \OCP\Constants::PERMISSION_UPDATE;
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}
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}
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// Check that we do not share with more permissions than we have
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if ($share->getPermissions() & ~$permissions) {
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$path = $userFolder->getRelativePath($share->getNode()->getPath());
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$message_t = $this->l->t('Can’t increase permissions of %s', [$path]);
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throw new GenericShareException($message_t, $message_t, 404);
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}
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// Check that read permissions are always set
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// Link shares are allowed to have no read permissions to allow upload to hidden folders
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$noReadPermissionRequired = $share->getShareType() === IShare::TYPE_LINK
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|| $share->getShareType() === IShare::TYPE_EMAIL;
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if (!$noReadPermissionRequired &&
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($share->getPermissions() & \OCP\Constants::PERMISSION_READ) === 0) {
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throw new \InvalidArgumentException('Shares need at least read permissions');
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}
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if ($share->getNode() instanceof \OCP\Files\File) {
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if ($share->getPermissions() & \OCP\Constants::PERMISSION_DELETE) {
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$message_t = $this->l->t('Files can’t be shared with delete permissions');
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throw new GenericShareException($message_t);
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}
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if ($share->getPermissions() & \OCP\Constants::PERMISSION_CREATE) {
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$message_t = $this->l->t('Files can’t be shared with create permissions');
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throw new GenericShareException($message_t);
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}
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}
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}
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/**
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* Validate if the expiration date fits the system settings
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*
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* @param IShare $share The share to validate the expiration date of
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* @return IShare The modified share object
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* @throws GenericShareException
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* @throws \InvalidArgumentException
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* @throws \Exception
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*/
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protected function validateExpirationDateInternal(IShare $share) {
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$expirationDate = $share->getExpirationDate();
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if ($expirationDate !== null) {
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//Make sure the expiration date is a date
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$expirationDate->setTime(0, 0, 0);
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$date = new \DateTime();
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$date->setTime(0, 0, 0);
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if ($date >= $expirationDate) {
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$message = $this->l->t('Expiration date is in the past');
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throw new GenericShareException($message, $message, 404);
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}
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}
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// If expiredate is empty set a default one if there is a default
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$fullId = null;
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try {
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$fullId = $share->getFullId();
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} catch (\UnexpectedValueException $e) {
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// This is a new share
|
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}
|
|
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if ($fullId === null && $expirationDate === null && $this->shareApiInternalDefaultExpireDate()) {
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$expirationDate = new \DateTime();
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$expirationDate->setTime(0,0,0);
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|
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$days = (int)$this->config->getAppValue('core', 'internal_defaultExpDays', $this->shareApiLinkDefaultExpireDays());
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if ($days > $this->shareApiLinkDefaultExpireDays()) {
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$days = $this->shareApiLinkDefaultExpireDays();
|
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}
|
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$expirationDate->add(new \DateInterval('P'.$days.'D'));
|
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}
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|
|
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// If we enforce the expiration date check that is does not exceed
|
|
if ($this->shareApiInternalDefaultExpireDateEnforced()) {
|
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if ($expirationDate === null) {
|
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throw new \InvalidArgumentException('Expiration date is enforced');
|
|
}
|
|
|
|
$date = new \DateTime();
|
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$date->setTime(0, 0, 0);
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$date->add(new \DateInterval('P' . $this->shareApiInternalDefaultExpireDays() . 'D'));
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if ($date < $expirationDate) {
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$message = $this->l->t('Can’t set expiration date more than %s days in the future', [$this->shareApiInternalDefaultExpireDays()]);
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throw new GenericShareException($message, $message, 404);
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}
|
|
}
|
|
|
|
$accepted = true;
|
|
$message = '';
|
|
\OCP\Util::emitHook('\OC\Share', 'verifyExpirationDate', [
|
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'expirationDate' => &$expirationDate,
|
|
'accepted' => &$accepted,
|
|
'message' => &$message,
|
|
'passwordSet' => $share->getPassword() !== null,
|
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]);
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|
|
if (!$accepted) {
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throw new \Exception($message);
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|
}
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|
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$share->setExpirationDate($expirationDate);
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return $share;
|
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}
|
|
|
|
/**
|
|
* Validate if the expiration date fits the system settings
|
|
*
|
|
* @param IShare $share The share to validate the expiration date of
|
|
* @return IShare The modified share object
|
|
* @throws GenericShareException
|
|
* @throws \InvalidArgumentException
|
|
* @throws \Exception
|
|
*/
|
|
protected function validateExpirationDate(IShare $share) {
|
|
$expirationDate = $share->getExpirationDate();
|
|
|
|
if ($expirationDate !== null) {
|
|
//Make sure the expiration date is a date
|
|
$expirationDate->setTime(0, 0, 0);
|
|
|
|
$date = new \DateTime();
|
|
$date->setTime(0, 0, 0);
|
|
if ($date >= $expirationDate) {
|
|
$message = $this->l->t('Expiration date is in the past');
|
|
throw new GenericShareException($message, $message, 404);
|
|
}
|
|
}
|
|
|
|
// If expiredate is empty set a default one if there is a default
|
|
$fullId = null;
|
|
try {
|
|
$fullId = $share->getFullId();
|
|
} catch (\UnexpectedValueException $e) {
|
|
// This is a new share
|
|
}
|
|
|
|
if ($fullId === null && $expirationDate === null && $this->shareApiLinkDefaultExpireDate()) {
|
|
$expirationDate = new \DateTime();
|
|
$expirationDate->setTime(0,0,0);
|
|
|
|
$days = (int)$this->config->getAppValue('core', 'link_defaultExpDays', $this->shareApiLinkDefaultExpireDays());
|
|
if ($days > $this->shareApiLinkDefaultExpireDays()) {
|
|
$days = $this->shareApiLinkDefaultExpireDays();
|
|
}
|
|
$expirationDate->add(new \DateInterval('P'.$days.'D'));
|
|
}
|
|
|
|
// If we enforce the expiration date check that is does not exceed
|
|
if ($this->shareApiLinkDefaultExpireDateEnforced()) {
|
|
if ($expirationDate === null) {
|
|
throw new \InvalidArgumentException('Expiration date is enforced');
|
|
}
|
|
|
|
$date = new \DateTime();
|
|
$date->setTime(0, 0, 0);
|
|
$date->add(new \DateInterval('P' . $this->shareApiLinkDefaultExpireDays() . 'D'));
|
|
if ($date < $expirationDate) {
|
|
$message = $this->l->t('Can’t set expiration date more than %s days in the future', [$this->shareApiLinkDefaultExpireDays()]);
|
|
throw new GenericShareException($message, $message, 404);
|
|
}
|
|
}
|
|
|
|
$accepted = true;
|
|
$message = '';
|
|
\OCP\Util::emitHook('\OC\Share', 'verifyExpirationDate', [
|
|
'expirationDate' => &$expirationDate,
|
|
'accepted' => &$accepted,
|
|
'message' => &$message,
|
|
'passwordSet' => $share->getPassword() !== null,
|
|
]);
|
|
|
|
if (!$accepted) {
|
|
throw new \Exception($message);
|
|
}
|
|
|
|
$share->setExpirationDate($expirationDate);
|
|
|
|
return $share;
|
|
}
|
|
|
|
/**
|
|
* Check for pre share requirements for user shares
|
|
*
|
|
* @param IShare $share
|
|
* @throws \Exception
|
|
*/
|
|
protected function userCreateChecks(IShare $share) {
|
|
// Check if we can share with group members only
|
|
if ($this->shareWithGroupMembersOnly()) {
|
|
$sharedBy = $this->userManager->get($share->getSharedBy());
|
|
$sharedWith = $this->userManager->get($share->getSharedWith());
|
|
// Verify we can share with this user
|
|
$groups = array_intersect(
|
|
$this->groupManager->getUserGroupIds($sharedBy),
|
|
$this->groupManager->getUserGroupIds($sharedWith)
|
|
);
|
|
if (empty($groups)) {
|
|
throw new \Exception('Sharing is only allowed with group members');
|
|
}
|
|
}
|
|
|
|
/*
|
|
* TODO: Could be costly, fix
|
|
*
|
|
* Also this is not what we want in the future.. then we want to squash identical shares.
|
|
*/
|
|
$provider = $this->factory->getProviderForType(IShare::TYPE_USER);
|
|
$existingShares = $provider->getSharesByPath($share->getNode());
|
|
foreach ($existingShares as $existingShare) {
|
|
// Ignore if it is the same share
|
|
try {
|
|
if ($existingShare->getFullId() === $share->getFullId()) {
|
|
continue;
|
|
}
|
|
} catch (\UnexpectedValueException $e) {
|
|
//Shares are not identical
|
|
}
|
|
|
|
// Identical share already existst
|
|
if ($existingShare->getSharedWith() === $share->getSharedWith() && $existingShare->getShareType() === $share->getShareType()) {
|
|
throw new \Exception('Path is already shared with this user');
|
|
}
|
|
|
|
// The share is already shared with this user via a group share
|
|
if ($existingShare->getShareType() === IShare::TYPE_GROUP) {
|
|
$group = $this->groupManager->get($existingShare->getSharedWith());
|
|
if (!is_null($group)) {
|
|
$user = $this->userManager->get($share->getSharedWith());
|
|
|
|
if ($group->inGroup($user) && $existingShare->getShareOwner() !== $share->getShareOwner()) {
|
|
throw new \Exception('Path is already shared with this user');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check for pre share requirements for group shares
|
|
*
|
|
* @param IShare $share
|
|
* @throws \Exception
|
|
*/
|
|
protected function groupCreateChecks(IShare $share) {
|
|
// Verify group shares are allowed
|
|
if (!$this->allowGroupSharing()) {
|
|
throw new \Exception('Group sharing is now allowed');
|
|
}
|
|
|
|
// Verify if the user can share with this group
|
|
if ($this->shareWithGroupMembersOnly()) {
|
|
$sharedBy = $this->userManager->get($share->getSharedBy());
|
|
$sharedWith = $this->groupManager->get($share->getSharedWith());
|
|
if (is_null($sharedWith) || !$sharedWith->inGroup($sharedBy)) {
|
|
throw new \Exception('Sharing is only allowed within your own groups');
|
|
}
|
|
}
|
|
|
|
/*
|
|
* TODO: Could be costly, fix
|
|
*
|
|
* Also this is not what we want in the future.. then we want to squash identical shares.
|
|
*/
|
|
$provider = $this->factory->getProviderForType(IShare::TYPE_GROUP);
|
|
$existingShares = $provider->getSharesByPath($share->getNode());
|
|
foreach ($existingShares as $existingShare) {
|
|
try {
|
|
if ($existingShare->getFullId() === $share->getFullId()) {
|
|
continue;
|
|
}
|
|
} catch (\UnexpectedValueException $e) {
|
|
//It is a new share so just continue
|
|
}
|
|
|
|
if ($existingShare->getSharedWith() === $share->getSharedWith() && $existingShare->getShareType() === $share->getShareType()) {
|
|
throw new \Exception('Path is already shared with this group');
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check for pre share requirements for link shares
|
|
*
|
|
* @param IShare $share
|
|
* @throws \Exception
|
|
*/
|
|
protected function linkCreateChecks(IShare $share) {
|
|
// Are link shares allowed?
|
|
if (!$this->shareApiAllowLinks()) {
|
|
throw new \Exception('Link sharing is not allowed');
|
|
}
|
|
|
|
// Check if public upload is allowed
|
|
if (!$this->shareApiLinkAllowPublicUpload() &&
|
|
($share->getPermissions() & (\OCP\Constants::PERMISSION_CREATE | \OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_DELETE))) {
|
|
throw new \InvalidArgumentException('Public upload is not allowed');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* To make sure we don't get invisible link shares we set the parent
|
|
* of a link if it is a reshare. This is a quick word around
|
|
* until we can properly display multiple link shares in the UI
|
|
*
|
|
* See: https://github.com/owncloud/core/issues/22295
|
|
*
|
|
* FIXME: Remove once multiple link shares can be properly displayed
|
|
*
|
|
* @param IShare $share
|
|
*/
|
|
protected function setLinkParent(IShare $share) {
|
|
|
|
// No sense in checking if the method is not there.
|
|
if (method_exists($share, 'setParent')) {
|
|
$storage = $share->getNode()->getStorage();
|
|
if ($storage->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
|
|
/** @var \OCA\Files_Sharing\SharedStorage $storage */
|
|
$share->setParent($storage->getShareId());
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param File|Folder $path
|
|
*/
|
|
protected function pathCreateChecks($path) {
|
|
// Make sure that we do not share a path that contains a shared mountpoint
|
|
if ($path instanceof \OCP\Files\Folder) {
|
|
$mounts = $this->mountManager->findIn($path->getPath());
|
|
foreach ($mounts as $mount) {
|
|
if ($mount->getStorage()->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
|
|
throw new \InvalidArgumentException('Path contains files shared with you');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check if the user that is sharing can actually share
|
|
*
|
|
* @param IShare $share
|
|
* @throws \Exception
|
|
*/
|
|
protected function canShare(IShare $share) {
|
|
if (!$this->shareApiEnabled()) {
|
|
throw new \Exception('Sharing is disabled');
|
|
}
|
|
|
|
if ($this->sharingDisabledForUser($share->getSharedBy())) {
|
|
throw new \Exception('Sharing is disabled for you');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Share a path
|
|
*
|
|
* @param IShare $share
|
|
* @return IShare The share object
|
|
* @throws \Exception
|
|
*
|
|
* TODO: handle link share permissions or check them
|
|
*/
|
|
public function createShare(IShare $share) {
|
|
$this->canShare($share);
|
|
|
|
$this->generalCreateChecks($share);
|
|
|
|
// Verify if there are any issues with the path
|
|
$this->pathCreateChecks($share->getNode());
|
|
|
|
/*
|
|
* On creation of a share the owner is always the owner of the path
|
|
* Except for mounted federated shares.
|
|
*/
|
|
$storage = $share->getNode()->getStorage();
|
|
if ($storage->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
|
|
$parent = $share->getNode()->getParent();
|
|
while ($parent->getStorage()->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
|
|
$parent = $parent->getParent();
|
|
}
|
|
$share->setShareOwner($parent->getOwner()->getUID());
|
|
} else {
|
|
if ($share->getNode()->getOwner()) {
|
|
$share->setShareOwner($share->getNode()->getOwner()->getUID());
|
|
} else {
|
|
$share->setShareOwner($share->getSharedBy());
|
|
}
|
|
}
|
|
|
|
//Verify share type
|
|
if ($share->getShareType() === IShare::TYPE_USER) {
|
|
$this->userCreateChecks($share);
|
|
|
|
//Verify the expiration date
|
|
$share = $this->validateExpirationDateInternal($share);
|
|
} elseif ($share->getShareType() === IShare::TYPE_GROUP) {
|
|
$this->groupCreateChecks($share);
|
|
|
|
//Verify the expiration date
|
|
$share = $this->validateExpirationDateInternal($share);
|
|
} elseif ($share->getShareType() === IShare::TYPE_LINK) {
|
|
$this->linkCreateChecks($share);
|
|
$this->setLinkParent($share);
|
|
|
|
/*
|
|
* For now ignore a set token.
|
|
*/
|
|
$share->setToken(
|
|
$this->secureRandom->generate(
|
|
\OC\Share\Constants::TOKEN_LENGTH,
|
|
\OCP\Security\ISecureRandom::CHAR_HUMAN_READABLE
|
|
)
|
|
);
|
|
|
|
//Verify the expiration date
|
|
$share = $this->validateExpirationDate($share);
|
|
|
|
//Verify the password
|
|
$this->verifyPassword($share->getPassword());
|
|
|
|
// If a password is set. Hash it!
|
|
if ($share->getPassword() !== null) {
|
|
$share->setPassword($this->hasher->hash($share->getPassword()));
|
|
}
|
|
} elseif ($share->getShareType() === IShare::TYPE_EMAIL) {
|
|
$share->setToken(
|
|
$this->secureRandom->generate(
|
|
\OC\Share\Constants::TOKEN_LENGTH,
|
|
\OCP\Security\ISecureRandom::CHAR_HUMAN_READABLE
|
|
)
|
|
);
|
|
}
|
|
|
|
// Cannot share with the owner
|
|
if ($share->getShareType() === IShare::TYPE_USER &&
|
|
$share->getSharedWith() === $share->getShareOwner()) {
|
|
throw new \InvalidArgumentException('Can’t share with the share owner');
|
|
}
|
|
|
|
// Generate the target
|
|
$target = $this->config->getSystemValue('share_folder', '/') .'/'. $share->getNode()->getName();
|
|
$target = \OC\Files\Filesystem::normalizePath($target);
|
|
$share->setTarget($target);
|
|
|
|
// Pre share event
|
|
$event = new GenericEvent($share);
|
|
$this->legacyDispatcher->dispatch('OCP\Share::preShare', $event);
|
|
if ($event->isPropagationStopped() && $event->hasArgument('error')) {
|
|
throw new \Exception($event->getArgument('error'));
|
|
}
|
|
|
|
$oldShare = $share;
|
|
$provider = $this->factory->getProviderForType($share->getShareType());
|
|
$share = $provider->create($share);
|
|
//reuse the node we already have
|
|
$share->setNode($oldShare->getNode());
|
|
|
|
// Reset the target if it is null for the new share
|
|
if ($share->getTarget() === '') {
|
|
$share->setTarget($target);
|
|
}
|
|
|
|
// Post share event
|
|
$event = new GenericEvent($share);
|
|
$this->legacyDispatcher->dispatch('OCP\Share::postShare', $event);
|
|
|
|
$this->dispatcher->dispatchTyped(new Share\Events\ShareCreatedEvent($share));
|
|
|
|
if ($this->config->getSystemValueBool('sharing.enable_share_mail', true)
|
|
&& $share->getShareType() === IShare::TYPE_USER) {
|
|
$mailSend = $share->getMailSend();
|
|
if ($mailSend === true) {
|
|
$user = $this->userManager->get($share->getSharedWith());
|
|
if ($user !== null) {
|
|
$emailAddress = $user->getEMailAddress();
|
|
if ($emailAddress !== null && $emailAddress !== '') {
|
|
$userLang = $this->l10nFactory->getUserLanguage($user);
|
|
$l = $this->l10nFactory->get('lib', $userLang);
|
|
$this->sendMailNotification(
|
|
$l,
|
|
$share->getNode()->getName(),
|
|
$this->urlGenerator->linkToRouteAbsolute('files_sharing.Accept.accept', ['shareId' => $share->getFullId()]),
|
|
$share->getSharedBy(),
|
|
$emailAddress,
|
|
$share->getExpirationDate()
|
|
);
|
|
$this->logger->debug('Sent share notification to ' . $emailAddress . ' for share with ID ' . $share->getId(), ['app' => 'share']);
|
|
} else {
|
|
$this->logger->debug('Share notification not sent to ' . $share->getSharedWith() . ' because email address is not set.', ['app' => 'share']);
|
|
}
|
|
} else {
|
|
$this->logger->debug('Share notification not sent to ' . $share->getSharedWith() . ' because user could not be found.', ['app' => 'share']);
|
|
}
|
|
} else {
|
|
$this->logger->debug('Share notification not sent because mailsend is false.', ['app' => 'share']);
|
|
}
|
|
}
|
|
|
|
return $share;
|
|
}
|
|
|
|
/**
|
|
* Send mail notifications
|
|
*
|
|
* This method will catch and log mail transmission errors
|
|
*
|
|
* @param IL10N $l Language of the recipient
|
|
* @param string $filename file/folder name
|
|
* @param string $link link to the file/folder
|
|
* @param string $initiator user ID of share sender
|
|
* @param string $shareWith email address of share receiver
|
|
* @param \DateTime|null $expiration
|
|
*/
|
|
protected function sendMailNotification(IL10N $l,
|
|
$filename,
|
|
$link,
|
|
$initiator,
|
|
$shareWith,
|
|
\DateTime $expiration = null) {
|
|
$initiatorUser = $this->userManager->get($initiator);
|
|
$initiatorDisplayName = ($initiatorUser instanceof IUser) ? $initiatorUser->getDisplayName() : $initiator;
|
|
|
|
$message = $this->mailer->createMessage();
|
|
|
|
$emailTemplate = $this->mailer->createEMailTemplate('files_sharing.RecipientNotification', [
|
|
'filename' => $filename,
|
|
'link' => $link,
|
|
'initiator' => $initiatorDisplayName,
|
|
'expiration' => $expiration,
|
|
'shareWith' => $shareWith,
|
|
]);
|
|
|
|
$emailTemplate->setSubject($l->t('%1$s shared »%2$s« with you', [$initiatorDisplayName, $filename]));
|
|
$emailTemplate->addHeader();
|
|
$emailTemplate->addHeading($l->t('%1$s shared »%2$s« with you', [$initiatorDisplayName, $filename]), false);
|
|
$text = $l->t('%1$s shared »%2$s« with you.', [$initiatorDisplayName, $filename]);
|
|
|
|
$emailTemplate->addBodyText(
|
|
htmlspecialchars($text . ' ' . $l->t('Click the button below to open it.')),
|
|
$text
|
|
);
|
|
$emailTemplate->addBodyButton(
|
|
$l->t('Open »%s«', [$filename]),
|
|
$link
|
|
);
|
|
|
|
$message->setTo([$shareWith]);
|
|
|
|
// The "From" contains the sharers name
|
|
$instanceName = $this->defaults->getName();
|
|
$senderName = $l->t(
|
|
'%1$s via %2$s',
|
|
[
|
|
$initiatorDisplayName,
|
|
$instanceName
|
|
]
|
|
);
|
|
$message->setFrom([\OCP\Util::getDefaultEmailAddress($instanceName) => $senderName]);
|
|
|
|
// The "Reply-To" is set to the sharer if an mail address is configured
|
|
// also the default footer contains a "Do not reply" which needs to be adjusted.
|
|
$initiatorEmail = $initiatorUser->getEMailAddress();
|
|
if ($initiatorEmail !== null) {
|
|
$message->setReplyTo([$initiatorEmail => $initiatorDisplayName]);
|
|
$emailTemplate->addFooter($instanceName . ($this->defaults->getSlogan($l->getLanguageCode()) !== '' ? ' - ' . $this->defaults->getSlogan($l->getLanguageCode()) : ''));
|
|
} else {
|
|
$emailTemplate->addFooter('', $l->getLanguageCode());
|
|
}
|
|
|
|
$message->useTemplate($emailTemplate);
|
|
try {
|
|
$failedRecipients = $this->mailer->send($message);
|
|
if (!empty($failedRecipients)) {
|
|
$this->logger->error('Share notification mail could not be sent to: ' . implode(', ', $failedRecipients));
|
|
return;
|
|
}
|
|
} catch (\Exception $e) {
|
|
$this->logger->logException($e, ['message' => 'Share notification mail could not be sent']);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Update a share
|
|
*
|
|
* @param IShare $share
|
|
* @return IShare The share object
|
|
* @throws \InvalidArgumentException
|
|
*/
|
|
public function updateShare(IShare $share) {
|
|
$expirationDateUpdated = false;
|
|
|
|
$this->canShare($share);
|
|
|
|
try {
|
|
$originalShare = $this->getShareById($share->getFullId());
|
|
} catch (\UnexpectedValueException $e) {
|
|
throw new \InvalidArgumentException('Share does not have a full id');
|
|
}
|
|
|
|
// We can't change the share type!
|
|
if ($share->getShareType() !== $originalShare->getShareType()) {
|
|
throw new \InvalidArgumentException('Can’t change share type');
|
|
}
|
|
|
|
// We can only change the recipient on user shares
|
|
if ($share->getSharedWith() !== $originalShare->getSharedWith() &&
|
|
$share->getShareType() !== IShare::TYPE_USER) {
|
|
throw new \InvalidArgumentException('Can only update recipient on user shares');
|
|
}
|
|
|
|
// Cannot share with the owner
|
|
if ($share->getShareType() === IShare::TYPE_USER &&
|
|
$share->getSharedWith() === $share->getShareOwner()) {
|
|
throw new \InvalidArgumentException('Can’t share with the share owner');
|
|
}
|
|
|
|
$this->generalCreateChecks($share);
|
|
|
|
if ($share->getShareType() === IShare::TYPE_USER) {
|
|
$this->userCreateChecks($share);
|
|
|
|
if ($share->getExpirationDate() != $originalShare->getExpirationDate()) {
|
|
//Verify the expiration date
|
|
$this->validateExpirationDate($share);
|
|
$expirationDateUpdated = true;
|
|
}
|
|
} elseif ($share->getShareType() === IShare::TYPE_GROUP) {
|
|
$this->groupCreateChecks($share);
|
|
|
|
if ($share->getExpirationDate() != $originalShare->getExpirationDate()) {
|
|
//Verify the expiration date
|
|
$this->validateExpirationDate($share);
|
|
$expirationDateUpdated = true;
|
|
}
|
|
} elseif ($share->getShareType() === IShare::TYPE_LINK) {
|
|
$this->linkCreateChecks($share);
|
|
|
|
$plainTextPassword = $share->getPassword();
|
|
|
|
$this->updateSharePasswordIfNeeded($share, $originalShare);
|
|
|
|
if (empty($plainTextPassword) && $share->getSendPasswordByTalk()) {
|
|
throw new \InvalidArgumentException('Can’t enable sending the password by Talk with an empty password');
|
|
}
|
|
|
|
if ($share->getExpirationDate() != $originalShare->getExpirationDate()) {
|
|
//Verify the expiration date
|
|
$this->validateExpirationDate($share);
|
|
$expirationDateUpdated = true;
|
|
}
|
|
} elseif ($share->getShareType() === IShare::TYPE_EMAIL) {
|
|
// The new password is not set again if it is the same as the old
|
|
// one.
|
|
$plainTextPassword = $share->getPassword();
|
|
if (!empty($plainTextPassword) && !$this->updateSharePasswordIfNeeded($share, $originalShare)) {
|
|
$plainTextPassword = null;
|
|
}
|
|
if (empty($plainTextPassword) && !$originalShare->getSendPasswordByTalk() && $share->getSendPasswordByTalk()) {
|
|
// If the same password was already sent by mail the recipient
|
|
// would already have access to the share without having to call
|
|
// the sharer to verify her identity
|
|
throw new \InvalidArgumentException('Can’t enable sending the password by Talk without setting a new password');
|
|
} elseif (empty($plainTextPassword) && $originalShare->getSendPasswordByTalk() && !$share->getSendPasswordByTalk()) {
|
|
throw new \InvalidArgumentException('Can’t disable sending the password by Talk without setting a new password');
|
|
}
|
|
}
|
|
|
|
$this->pathCreateChecks($share->getNode());
|
|
|
|
// Now update the share!
|
|
$provider = $this->factory->getProviderForType($share->getShareType());
|
|
if ($share->getShareType() === IShare::TYPE_EMAIL) {
|
|
$share = $provider->update($share, $plainTextPassword);
|
|
} else {
|
|
$share = $provider->update($share);
|
|
}
|
|
|
|
if ($expirationDateUpdated === true) {
|
|
\OC_Hook::emit(Share::class, 'post_set_expiration_date', [
|
|
'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
|
|
'itemSource' => $share->getNode()->getId(),
|
|
'date' => $share->getExpirationDate(),
|
|
'uidOwner' => $share->getSharedBy(),
|
|
]);
|
|
}
|
|
|
|
if ($share->getPassword() !== $originalShare->getPassword()) {
|
|
\OC_Hook::emit(Share::class, 'post_update_password', [
|
|
'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
|
|
'itemSource' => $share->getNode()->getId(),
|
|
'uidOwner' => $share->getSharedBy(),
|
|
'token' => $share->getToken(),
|
|
'disabled' => is_null($share->getPassword()),
|
|
]);
|
|
}
|
|
|
|
if ($share->getPermissions() !== $originalShare->getPermissions()) {
|
|
if ($this->userManager->userExists($share->getShareOwner())) {
|
|
$userFolder = $this->rootFolder->getUserFolder($share->getShareOwner());
|
|
} else {
|
|
$userFolder = $this->rootFolder->getUserFolder($share->getSharedBy());
|
|
}
|
|
\OC_Hook::emit(Share::class, 'post_update_permissions', [
|
|
'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
|
|
'itemSource' => $share->getNode()->getId(),
|
|
'shareType' => $share->getShareType(),
|
|
'shareWith' => $share->getSharedWith(),
|
|
'uidOwner' => $share->getSharedBy(),
|
|
'permissions' => $share->getPermissions(),
|
|
'path' => $userFolder->getRelativePath($share->getNode()->getPath()),
|
|
]);
|
|
}
|
|
|
|
return $share;
|
|
}
|
|
|
|
/**
|
|
* Accept a share.
|
|
*
|
|
* @param IShare $share
|
|
* @param string $recipientId
|
|
* @return IShare The share object
|
|
* @throws \InvalidArgumentException
|
|
* @since 9.0.0
|
|
*/
|
|
public function acceptShare(IShare $share, string $recipientId): IShare {
|
|
[$providerId, ] = $this->splitFullId($share->getFullId());
|
|
$provider = $this->factory->getProvider($providerId);
|
|
|
|
if (!method_exists($provider, 'acceptShare')) {
|
|
// TODO FIX ME
|
|
throw new \InvalidArgumentException('Share provider does not support accepting');
|
|
}
|
|
$provider->acceptShare($share, $recipientId);
|
|
$event = new GenericEvent($share);
|
|
$this->legacyDispatcher->dispatch('OCP\Share::postAcceptShare', $event);
|
|
|
|
return $share;
|
|
}
|
|
|
|
/**
|
|
* Updates the password of the given share if it is not the same as the
|
|
* password of the original share.
|
|
*
|
|
* @param IShare $share the share to update its password.
|
|
* @param IShare $originalShare the original share to compare its
|
|
* password with.
|
|
* @return boolean whether the password was updated or not.
|
|
*/
|
|
private function updateSharePasswordIfNeeded(IShare $share, IShare $originalShare) {
|
|
$passwordsAreDifferent = ($share->getPassword() !== $originalShare->getPassword()) &&
|
|
(($share->getPassword() !== null && $originalShare->getPassword() === null) ||
|
|
($share->getPassword() === null && $originalShare->getPassword() !== null) ||
|
|
($share->getPassword() !== null && $originalShare->getPassword() !== null &&
|
|
!$this->hasher->verify($share->getPassword(), $originalShare->getPassword())));
|
|
|
|
// Password updated.
|
|
if ($passwordsAreDifferent) {
|
|
//Verify the password
|
|
$this->verifyPassword($share->getPassword());
|
|
|
|
// If a password is set. Hash it!
|
|
if ($share->getPassword() !== null) {
|
|
$share->setPassword($this->hasher->hash($share->getPassword()));
|
|
|
|
return true;
|
|
}
|
|
} else {
|
|
// Reset the password to the original one, as it is either the same
|
|
// as the "new" password or a hashed version of it.
|
|
$share->setPassword($originalShare->getPassword());
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Delete all the children of this share
|
|
* FIXME: remove once https://github.com/owncloud/core/pull/21660 is in
|
|
*
|
|
* @param IShare $share
|
|
* @return IShare[] List of deleted shares
|
|
*/
|
|
protected function deleteChildren(IShare $share) {
|
|
$deletedShares = [];
|
|
|
|
$provider = $this->factory->getProviderForType($share->getShareType());
|
|
|
|
foreach ($provider->getChildren($share) as $child) {
|
|
$deletedChildren = $this->deleteChildren($child);
|
|
$deletedShares = array_merge($deletedShares, $deletedChildren);
|
|
|
|
$provider->delete($child);
|
|
$deletedShares[] = $child;
|
|
}
|
|
|
|
return $deletedShares;
|
|
}
|
|
|
|
/**
|
|
* Delete a share
|
|
*
|
|
* @param IShare $share
|
|
* @throws ShareNotFound
|
|
* @throws \InvalidArgumentException
|
|
*/
|
|
public function deleteShare(IShare $share) {
|
|
try {
|
|
$share->getFullId();
|
|
} catch (\UnexpectedValueException $e) {
|
|
throw new \InvalidArgumentException('Share does not have a full id');
|
|
}
|
|
|
|
$event = new GenericEvent($share);
|
|
$this->legacyDispatcher->dispatch('OCP\Share::preUnshare', $event);
|
|
|
|
// Get all children and delete them as well
|
|
$deletedShares = $this->deleteChildren($share);
|
|
|
|
// Do the actual delete
|
|
$provider = $this->factory->getProviderForType($share->getShareType());
|
|
$provider->delete($share);
|
|
|
|
// All the deleted shares caused by this delete
|
|
$deletedShares[] = $share;
|
|
|
|
// Emit post hook
|
|
$event->setArgument('deletedShares', $deletedShares);
|
|
$this->legacyDispatcher->dispatch('OCP\Share::postUnshare', $event);
|
|
}
|
|
|
|
|
|
/**
|
|
* Unshare a file as the recipient.
|
|
* This can be different from a regular delete for example when one of
|
|
* the users in a groups deletes that share. But the provider should
|
|
* handle this.
|
|
*
|
|
* @param IShare $share
|
|
* @param string $recipientId
|
|
*/
|
|
public function deleteFromSelf(IShare $share, $recipientId) {
|
|
list($providerId, ) = $this->splitFullId($share->getFullId());
|
|
$provider = $this->factory->getProvider($providerId);
|
|
|
|
$provider->deleteFromSelf($share, $recipientId);
|
|
$event = new GenericEvent($share);
|
|
$this->legacyDispatcher->dispatch('OCP\Share::postUnshareFromSelf', $event);
|
|
}
|
|
|
|
public function restoreShare(IShare $share, string $recipientId): IShare {
|
|
list($providerId, ) = $this->splitFullId($share->getFullId());
|
|
$provider = $this->factory->getProvider($providerId);
|
|
|
|
return $provider->restore($share, $recipientId);
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function moveShare(IShare $share, $recipientId) {
|
|
if ($share->getShareType() === IShare::TYPE_LINK) {
|
|
throw new \InvalidArgumentException('Can’t change target of link share');
|
|
}
|
|
|
|
if ($share->getShareType() === IShare::TYPE_USER && $share->getSharedWith() !== $recipientId) {
|
|
throw new \InvalidArgumentException('Invalid recipient');
|
|
}
|
|
|
|
if ($share->getShareType() === IShare::TYPE_GROUP) {
|
|
$sharedWith = $this->groupManager->get($share->getSharedWith());
|
|
if (is_null($sharedWith)) {
|
|
throw new \InvalidArgumentException('Group "' . $share->getSharedWith() . '" does not exist');
|
|
}
|
|
$recipient = $this->userManager->get($recipientId);
|
|
if (!$sharedWith->inGroup($recipient)) {
|
|
throw new \InvalidArgumentException('Invalid recipient');
|
|
}
|
|
}
|
|
|
|
list($providerId, ) = $this->splitFullId($share->getFullId());
|
|
$provider = $this->factory->getProvider($providerId);
|
|
|
|
return $provider->move($share, $recipientId);
|
|
}
|
|
|
|
public function getSharesInFolder($userId, Folder $node, $reshares = false) {
|
|
$providers = $this->factory->getAllProviders();
|
|
|
|
return array_reduce($providers, function ($shares, IShareProvider $provider) use ($userId, $node, $reshares) {
|
|
$newShares = $provider->getSharesInFolder($userId, $node, $reshares);
|
|
foreach ($newShares as $fid => $data) {
|
|
if (!isset($shares[$fid])) {
|
|
$shares[$fid] = [];
|
|
}
|
|
|
|
$shares[$fid] = array_merge($shares[$fid], $data);
|
|
}
|
|
return $shares;
|
|
}, []);
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function getSharesBy($userId, $shareType, $path = null, $reshares = false, $limit = 50, $offset = 0) {
|
|
if ($path !== null &&
|
|
!($path instanceof \OCP\Files\File) &&
|
|
!($path instanceof \OCP\Files\Folder)) {
|
|
throw new \InvalidArgumentException('invalid path');
|
|
}
|
|
|
|
try {
|
|
$provider = $this->factory->getProviderForType($shareType);
|
|
} catch (ProviderException $e) {
|
|
return [];
|
|
}
|
|
|
|
$shares = $provider->getSharesBy($userId, $shareType, $path, $reshares, $limit, $offset);
|
|
|
|
/*
|
|
* Work around so we don't return expired shares but still follow
|
|
* proper pagination.
|
|
*/
|
|
|
|
$shares2 = [];
|
|
|
|
while (true) {
|
|
$added = 0;
|
|
foreach ($shares as $share) {
|
|
try {
|
|
$this->checkExpireDate($share);
|
|
} catch (ShareNotFound $e) {
|
|
//Ignore since this basically means the share is deleted
|
|
continue;
|
|
}
|
|
|
|
$added++;
|
|
$shares2[] = $share;
|
|
|
|
if (count($shares2) === $limit) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If we did not fetch more shares than the limit then there are no more shares
|
|
if (count($shares) < $limit) {
|
|
break;
|
|
}
|
|
|
|
if (count($shares2) === $limit) {
|
|
break;
|
|
}
|
|
|
|
// If there was no limit on the select we are done
|
|
if ($limit === -1) {
|
|
break;
|
|
}
|
|
|
|
$offset += $added;
|
|
|
|
// Fetch again $limit shares
|
|
$shares = $provider->getSharesBy($userId, $shareType, $path, $reshares, $limit, $offset);
|
|
|
|
// No more shares means we are done
|
|
if (empty($shares)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
$shares = $shares2;
|
|
|
|
return $shares;
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function getSharedWith($userId, $shareType, $node = null, $limit = 50, $offset = 0) {
|
|
try {
|
|
$provider = $this->factory->getProviderForType($shareType);
|
|
} catch (ProviderException $e) {
|
|
return [];
|
|
}
|
|
|
|
$shares = $provider->getSharedWith($userId, $shareType, $node, $limit, $offset);
|
|
|
|
// remove all shares which are already expired
|
|
foreach ($shares as $key => $share) {
|
|
try {
|
|
$this->checkExpireDate($share);
|
|
} catch (ShareNotFound $e) {
|
|
unset($shares[$key]);
|
|
}
|
|
}
|
|
|
|
return $shares;
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function getDeletedSharedWith($userId, $shareType, $node = null, $limit = 50, $offset = 0) {
|
|
$shares = $this->getSharedWith($userId, $shareType, $node, $limit, $offset);
|
|
|
|
// Only get deleted shares
|
|
$shares = array_filter($shares, function (IShare $share) {
|
|
return $share->getPermissions() === 0;
|
|
});
|
|
|
|
// Only get shares where the owner still exists
|
|
$shares = array_filter($shares, function (IShare $share) {
|
|
return $this->userManager->userExists($share->getShareOwner());
|
|
});
|
|
|
|
return $shares;
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function getShareById($id, $recipient = null) {
|
|
if ($id === null) {
|
|
throw new ShareNotFound();
|
|
}
|
|
|
|
list($providerId, $id) = $this->splitFullId($id);
|
|
|
|
try {
|
|
$provider = $this->factory->getProvider($providerId);
|
|
} catch (ProviderException $e) {
|
|
throw new ShareNotFound();
|
|
}
|
|
|
|
$share = $provider->getShareById($id, $recipient);
|
|
|
|
$this->checkExpireDate($share);
|
|
|
|
return $share;
|
|
}
|
|
|
|
/**
|
|
* Get all the shares for a given path
|
|
*
|
|
* @param \OCP\Files\Node $path
|
|
* @param int $page
|
|
* @param int $perPage
|
|
*
|
|
* @return Share[]
|
|
*/
|
|
public function getSharesByPath(\OCP\Files\Node $path, $page=0, $perPage=50) {
|
|
return [];
|
|
}
|
|
|
|
/**
|
|
* Get the share by token possible with password
|
|
*
|
|
* @param string $token
|
|
* @return IShare
|
|
*
|
|
* @throws ShareNotFound
|
|
*/
|
|
public function getShareByToken($token) {
|
|
// tokens can't be valid local user names
|
|
if ($this->userManager->userExists($token)) {
|
|
throw new ShareNotFound();
|
|
}
|
|
$share = null;
|
|
try {
|
|
if ($this->shareApiAllowLinks()) {
|
|
$provider = $this->factory->getProviderForType(IShare::TYPE_LINK);
|
|
$share = $provider->getShareByToken($token);
|
|
}
|
|
} catch (ProviderException $e) {
|
|
} catch (ShareNotFound $e) {
|
|
}
|
|
|
|
|
|
// If it is not a link share try to fetch a federated share by token
|
|
if ($share === null) {
|
|
try {
|
|
$provider = $this->factory->getProviderForType(IShare::TYPE_REMOTE);
|
|
$share = $provider->getShareByToken($token);
|
|
} catch (ProviderException $e) {
|
|
} catch (ShareNotFound $e) {
|
|
}
|
|
}
|
|
|
|
// If it is not a link share try to fetch a mail share by token
|
|
if ($share === null && $this->shareProviderExists(IShare::TYPE_EMAIL)) {
|
|
try {
|
|
$provider = $this->factory->getProviderForType(IShare::TYPE_EMAIL);
|
|
$share = $provider->getShareByToken($token);
|
|
} catch (ProviderException $e) {
|
|
} catch (ShareNotFound $e) {
|
|
}
|
|
}
|
|
|
|
if ($share === null && $this->shareProviderExists(IShare::TYPE_CIRCLE)) {
|
|
try {
|
|
$provider = $this->factory->getProviderForType(IShare::TYPE_CIRCLE);
|
|
$share = $provider->getShareByToken($token);
|
|
} catch (ProviderException $e) {
|
|
} catch (ShareNotFound $e) {
|
|
}
|
|
}
|
|
|
|
if ($share === null && $this->shareProviderExists(IShare::TYPE_ROOM)) {
|
|
try {
|
|
$provider = $this->factory->getProviderForType(IShare::TYPE_ROOM);
|
|
$share = $provider->getShareByToken($token);
|
|
} catch (ProviderException $e) {
|
|
} catch (ShareNotFound $e) {
|
|
}
|
|
}
|
|
|
|
if ($share === null) {
|
|
throw new ShareNotFound($this->l->t('The requested share does not exist anymore'));
|
|
}
|
|
|
|
$this->checkExpireDate($share);
|
|
|
|
/*
|
|
* Reduce the permissions for link shares if public upload is not enabled
|
|
*/
|
|
if ($share->getShareType() === IShare::TYPE_LINK &&
|
|
!$this->shareApiLinkAllowPublicUpload()) {
|
|
$share->setPermissions($share->getPermissions() & ~(\OCP\Constants::PERMISSION_CREATE | \OCP\Constants::PERMISSION_UPDATE));
|
|
}
|
|
|
|
return $share;
|
|
}
|
|
|
|
protected function checkExpireDate($share) {
|
|
if ($share->isExpired()) {
|
|
$this->deleteShare($share);
|
|
throw new ShareNotFound($this->l->t('The requested share does not exist anymore'));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Verify the password of a public share
|
|
*
|
|
* @param IShare $share
|
|
* @param string $password
|
|
* @return bool
|
|
*/
|
|
public function checkPassword(IShare $share, $password) {
|
|
$passwordProtected = $share->getShareType() !== IShare::TYPE_LINK
|
|
|| $share->getShareType() !== IShare::TYPE_EMAIL
|
|
|| $share->getShareType() !== IShare::TYPE_CIRCLE;
|
|
if (!$passwordProtected) {
|
|
//TODO maybe exception?
|
|
return false;
|
|
}
|
|
|
|
if ($password === null || $share->getPassword() === null) {
|
|
return false;
|
|
}
|
|
|
|
$newHash = '';
|
|
if (!$this->hasher->verify($password, $share->getPassword(), $newHash)) {
|
|
return false;
|
|
}
|
|
|
|
if (!empty($newHash)) {
|
|
$share->setPassword($newHash);
|
|
$provider = $this->factory->getProviderForType($share->getShareType());
|
|
$provider->update($share);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function userDeleted($uid) {
|
|
$types = [IShare::TYPE_USER, IShare::TYPE_GROUP, IShare::TYPE_LINK, IShare::TYPE_REMOTE, IShare::TYPE_EMAIL];
|
|
|
|
foreach ($types as $type) {
|
|
try {
|
|
$provider = $this->factory->getProviderForType($type);
|
|
} catch (ProviderException $e) {
|
|
continue;
|
|
}
|
|
$provider->userDeleted($uid, $type);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function groupDeleted($gid) {
|
|
$provider = $this->factory->getProviderForType(IShare::TYPE_GROUP);
|
|
$provider->groupDeleted($gid);
|
|
|
|
$excludedGroups = $this->config->getAppValue('core', 'shareapi_exclude_groups_list', '');
|
|
if ($excludedGroups === '') {
|
|
return;
|
|
}
|
|
|
|
$excludedGroups = json_decode($excludedGroups, true);
|
|
if (json_last_error() !== JSON_ERROR_NONE) {
|
|
return;
|
|
}
|
|
|
|
$excludedGroups = array_diff($excludedGroups, [$gid]);
|
|
$this->config->setAppValue('core', 'shareapi_exclude_groups_list', json_encode($excludedGroups));
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function userDeletedFromGroup($uid, $gid) {
|
|
$provider = $this->factory->getProviderForType(IShare::TYPE_GROUP);
|
|
$provider->userDeletedFromGroup($uid, $gid);
|
|
}
|
|
|
|
/**
|
|
* Get access list to a path. This means
|
|
* all the users that can access a given path.
|
|
*
|
|
* Consider:
|
|
* -root
|
|
* |-folder1 (23)
|
|
* |-folder2 (32)
|
|
* |-fileA (42)
|
|
*
|
|
* fileA is shared with user1 and user1@server1
|
|
* folder2 is shared with group2 (user4 is a member of group2)
|
|
* folder1 is shared with user2 (renamed to "folder (1)") and user2@server2
|
|
*
|
|
* Then the access list to '/folder1/folder2/fileA' with $currentAccess is:
|
|
* [
|
|
* users => [
|
|
* 'user1' => ['node_id' => 42, 'node_path' => '/fileA'],
|
|
* 'user4' => ['node_id' => 32, 'node_path' => '/folder2'],
|
|
* 'user2' => ['node_id' => 23, 'node_path' => '/folder (1)'],
|
|
* ],
|
|
* remote => [
|
|
* 'user1@server1' => ['node_id' => 42, 'token' => 'SeCr3t'],
|
|
* 'user2@server2' => ['node_id' => 23, 'token' => 'FooBaR'],
|
|
* ],
|
|
* public => bool
|
|
* mail => bool
|
|
* ]
|
|
*
|
|
* The access list to '/folder1/folder2/fileA' **without** $currentAccess is:
|
|
* [
|
|
* users => ['user1', 'user2', 'user4'],
|
|
* remote => bool,
|
|
* public => bool
|
|
* mail => bool
|
|
* ]
|
|
*
|
|
* This is required for encryption/activity
|
|
*
|
|
* @param \OCP\Files\Node $path
|
|
* @param bool $recursive Should we check all parent folders as well
|
|
* @param bool $currentAccess Ensure the recipient has access to the file (e.g. did not unshare it)
|
|
* @return array
|
|
*/
|
|
public function getAccessList(\OCP\Files\Node $path, $recursive = true, $currentAccess = false) {
|
|
$owner = $path->getOwner();
|
|
|
|
if ($owner === null) {
|
|
return [];
|
|
}
|
|
|
|
$owner = $owner->getUID();
|
|
|
|
if ($currentAccess) {
|
|
$al = ['users' => [], 'remote' => [], 'public' => false];
|
|
} else {
|
|
$al = ['users' => [], 'remote' => false, 'public' => false];
|
|
}
|
|
if (!$this->userManager->userExists($owner)) {
|
|
return $al;
|
|
}
|
|
|
|
//Get node for the owner and correct the owner in case of external storages
|
|
$userFolder = $this->rootFolder->getUserFolder($owner);
|
|
if ($path->getId() !== $userFolder->getId() && !$userFolder->isSubNode($path)) {
|
|
$nodes = $userFolder->getById($path->getId());
|
|
$path = array_shift($nodes);
|
|
if ($path->getOwner() === null) {
|
|
return [];
|
|
}
|
|
$owner = $path->getOwner()->getUID();
|
|
}
|
|
|
|
$providers = $this->factory->getAllProviders();
|
|
|
|
/** @var Node[] $nodes */
|
|
$nodes = [];
|
|
|
|
|
|
if ($currentAccess) {
|
|
$ownerPath = $path->getPath();
|
|
$ownerPath = explode('/', $ownerPath, 4);
|
|
if (count($ownerPath) < 4) {
|
|
$ownerPath = '';
|
|
} else {
|
|
$ownerPath = $ownerPath[3];
|
|
}
|
|
$al['users'][$owner] = [
|
|
'node_id' => $path->getId(),
|
|
'node_path' => '/' . $ownerPath,
|
|
];
|
|
} else {
|
|
$al['users'][] = $owner;
|
|
}
|
|
|
|
// Collect all the shares
|
|
while ($path->getPath() !== $userFolder->getPath()) {
|
|
$nodes[] = $path;
|
|
if (!$recursive) {
|
|
break;
|
|
}
|
|
$path = $path->getParent();
|
|
}
|
|
|
|
foreach ($providers as $provider) {
|
|
$tmp = $provider->getAccessList($nodes, $currentAccess);
|
|
|
|
foreach ($tmp as $k => $v) {
|
|
if (isset($al[$k])) {
|
|
if (is_array($al[$k])) {
|
|
if ($currentAccess) {
|
|
$al[$k] += $v;
|
|
} else {
|
|
$al[$k] = array_merge($al[$k], $v);
|
|
$al[$k] = array_unique($al[$k]);
|
|
$al[$k] = array_values($al[$k]);
|
|
}
|
|
} else {
|
|
$al[$k] = $al[$k] || $v;
|
|
}
|
|
} else {
|
|
$al[$k] = $v;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $al;
|
|
}
|
|
|
|
/**
|
|
* Create a new share
|
|
*
|
|
* @return IShare
|
|
*/
|
|
public function newShare() {
|
|
return new \OC\Share20\Share($this->rootFolder, $this->userManager);
|
|
}
|
|
|
|
/**
|
|
* Is the share API enabled
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function shareApiEnabled() {
|
|
return $this->config->getAppValue('core', 'shareapi_enabled', 'yes') === 'yes';
|
|
}
|
|
|
|
/**
|
|
* Is public link sharing enabled
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function shareApiAllowLinks() {
|
|
return $this->config->getAppValue('core', 'shareapi_allow_links', 'yes') === 'yes';
|
|
}
|
|
|
|
/**
|
|
* Is password on public link requires
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function shareApiLinkEnforcePassword() {
|
|
return $this->config->getAppValue('core', 'shareapi_enforce_links_password', 'no') === 'yes';
|
|
}
|
|
|
|
/**
|
|
* Is default link expire date enabled
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function shareApiLinkDefaultExpireDate() {
|
|
return $this->config->getAppValue('core', 'shareapi_default_expire_date', 'no') === 'yes';
|
|
}
|
|
|
|
/**
|
|
* Is default link expire date enforced
|
|
*`
|
|
* @return bool
|
|
*/
|
|
public function shareApiLinkDefaultExpireDateEnforced() {
|
|
return $this->shareApiLinkDefaultExpireDate() &&
|
|
$this->config->getAppValue('core', 'shareapi_enforce_expire_date', 'no') === 'yes';
|
|
}
|
|
|
|
|
|
/**
|
|
* Number of default link expire days
|
|
* @return int
|
|
*/
|
|
public function shareApiLinkDefaultExpireDays() {
|
|
return (int)$this->config->getAppValue('core', 'shareapi_expire_after_n_days', '7');
|
|
}
|
|
|
|
/**
|
|
* Is default internal expire date enabled
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function shareApiInternalDefaultExpireDate(): bool {
|
|
return $this->config->getAppValue('core', 'shareapi_default_internal_expire_date', 'no') === 'yes';
|
|
}
|
|
|
|
/**
|
|
* Is default expire date enforced
|
|
*`
|
|
* @return bool
|
|
*/
|
|
public function shareApiInternalDefaultExpireDateEnforced(): bool {
|
|
return $this->shareApiInternalDefaultExpireDate() &&
|
|
$this->config->getAppValue('core', 'shareapi_enforce_internal_expire_date', 'no') === 'yes';
|
|
}
|
|
|
|
|
|
/**
|
|
* Number of default expire days
|
|
* @return int
|
|
*/
|
|
public function shareApiInternalDefaultExpireDays(): int {
|
|
return (int)$this->config->getAppValue('core', 'shareapi_internal_expire_after_n_days', '7');
|
|
}
|
|
|
|
/**
|
|
* Allow public upload on link shares
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function shareApiLinkAllowPublicUpload() {
|
|
return $this->config->getAppValue('core', 'shareapi_allow_public_upload', 'yes') === 'yes';
|
|
}
|
|
|
|
/**
|
|
* check if user can only share with group members
|
|
* @return bool
|
|
*/
|
|
public function shareWithGroupMembersOnly() {
|
|
return $this->config->getAppValue('core', 'shareapi_only_share_with_group_members', 'no') === 'yes';
|
|
}
|
|
|
|
/**
|
|
* Check if users can share with groups
|
|
* @return bool
|
|
*/
|
|
public function allowGroupSharing() {
|
|
return $this->config->getAppValue('core', 'shareapi_allow_group_sharing', 'yes') === 'yes';
|
|
}
|
|
|
|
public function allowEnumeration(): bool {
|
|
return $this->config->getAppValue('core', 'shareapi_allow_share_dialog_user_enumeration', 'yes') === 'yes';
|
|
}
|
|
|
|
public function limitEnumerationToGroups(): bool {
|
|
return $this->allowEnumeration() &&
|
|
$this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_to_group', 'no') === 'yes';
|
|
}
|
|
|
|
/**
|
|
* Copied from \OC_Util::isSharingDisabledForUser
|
|
*
|
|
* TODO: Deprecate fuction from OC_Util
|
|
*
|
|
* @param string $userId
|
|
* @return bool
|
|
*/
|
|
public function sharingDisabledForUser($userId) {
|
|
if ($userId === null) {
|
|
return false;
|
|
}
|
|
|
|
if (isset($this->sharingDisabledForUsersCache[$userId])) {
|
|
return $this->sharingDisabledForUsersCache[$userId];
|
|
}
|
|
|
|
if ($this->config->getAppValue('core', 'shareapi_exclude_groups', 'no') === 'yes') {
|
|
$groupsList = $this->config->getAppValue('core', 'shareapi_exclude_groups_list', '');
|
|
$excludedGroups = json_decode($groupsList);
|
|
if (is_null($excludedGroups)) {
|
|
$excludedGroups = explode(',', $groupsList);
|
|
$newValue = json_encode($excludedGroups);
|
|
$this->config->setAppValue('core', 'shareapi_exclude_groups_list', $newValue);
|
|
}
|
|
$user = $this->userManager->get($userId);
|
|
$usersGroups = $this->groupManager->getUserGroupIds($user);
|
|
if (!empty($usersGroups)) {
|
|
$remainingGroups = array_diff($usersGroups, $excludedGroups);
|
|
// if the user is only in groups which are disabled for sharing then
|
|
// sharing is also disabled for the user
|
|
if (empty($remainingGroups)) {
|
|
$this->sharingDisabledForUsersCache[$userId] = true;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
$this->sharingDisabledForUsersCache[$userId] = false;
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function outgoingServer2ServerSharesAllowed() {
|
|
return $this->config->getAppValue('files_sharing', 'outgoing_server2server_share_enabled', 'yes') === 'yes';
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function outgoingServer2ServerGroupSharesAllowed() {
|
|
return $this->config->getAppValue('files_sharing', 'outgoing_server2server_group_share_enabled', 'no') === 'yes';
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function shareProviderExists($shareType) {
|
|
try {
|
|
$this->factory->getProviderForType($shareType);
|
|
} catch (ProviderException $e) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public function getAllShares(): iterable {
|
|
$providers = $this->factory->getAllProviders();
|
|
|
|
foreach ($providers as $provider) {
|
|
yield from $provider->getAllShares();
|
|
}
|
|
}
|
|
}
|