nextcloud/apps/files_sharing/lib/Updater.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Björn Schießle <bjoern@schiessle.org>
* @author Daniel Calviño Sánchez <danxuliu@gmail.com>
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* @author Michael Gapczynski <GapczynskiM@gmail.com>
* @author Morris Jobke <hey@morrisjobke.de>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
*
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* @license AGPL-3.0
*
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* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
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* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\Files_Sharing;
class Updater {
/**
* @param array $params
*/
static public function renameHook($params) {
self::renameChildren($params['oldpath'], $params['newpath']);
self::moveShareToShare($params['newpath']);
}
/**
* Fix for https://github.com/owncloud/core/issues/20769
*
* The owner is allowed to move their files (if they are shared) into a receiving folder
* In this case we need to update the parent of the moved share. Since they are
* effectively handing over ownership of the file the rest of the code needs to know
* they need to build up the reshare tree.
*
* @param string $path
*/
static private function moveShareToShare($path) {
$userFolder = \OC::$server->getUserFolder();
// If the user folder can't be constructed (e.g. link share) just return.
if ($userFolder === null) {
return;
}
$src = $userFolder->get($path);
$shareManager = \OC::$server->getShareManager();
$shares = $shareManager->getSharesBy($userFolder->getOwner()->getUID(), \OCP\Share::SHARE_TYPE_USER, $src, false, -1);
$shares = array_merge($shares, $shareManager->getSharesBy($userFolder->getOwner()->getUID(), \OCP\Share::SHARE_TYPE_GROUP, $src, false, -1));
$shares = array_merge($shares, $shareManager->getSharesBy($userFolder->getOwner()->getUID(), \OCP\Share::SHARE_TYPE_ROOM, $src, false, -1));
// If the path we move is not a share we don't care
if (empty($shares)) {
return;
}
// Check if the destination is inside a share
$mountManager = \OC::$server->getMountManager();
$dstMount = $mountManager->find($src->getPath());
if (!($dstMount instanceof \OCA\Files_Sharing\SharedMount)) {
return;
}
$newOwner = $dstMount->getShare()->getShareOwner();
//Ownership is moved over
foreach ($shares as $share) {
/** @var \OCP\Share\IShare $share */
$share->setShareOwner($newOwner);
$shareManager->updateShare($share);
}
}
/**
* rename mount point from the children if the parent was renamed
*
* @param string $oldPath old path relative to data/user/files
* @param string $newPath new path relative to data/user/files
*/
static private function renameChildren($oldPath, $newPath) {
$absNewPath = \OC\Files\Filesystem::normalizePath('/' . \OCP\User::getUser() . '/files/' . $newPath);
$absOldPath = \OC\Files\Filesystem::normalizePath('/' . \OCP\User::getUser() . '/files/' . $oldPath);
$mountManager = \OC\Files\Filesystem::getMountManager();
$mountedShares = $mountManager->findIn('/' . \OCP\User::getUser() . '/files/' . $oldPath);
foreach ($mountedShares as $mount) {
if ($mount->getStorage()->instanceOfStorage(ISharedStorage::class)) {
$mountPoint = $mount->getMountPoint();
$target = str_replace($absOldPath, $absNewPath, $mountPoint);
$mount->moveMount($target);
}
}
}
}