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<?php
/**
* @author Björn Schießle <schiessle@owncloud.com>
* @author Joas Schilling <nickvergessen@owncloud.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
* @author Roeland Jago Douma <rullzer@owncloud.com>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @license AGPL-3.0
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* 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;
use OC\Files\Mount\MountPoint;
use OC\Files\Mount\MoveableMount;
use OC\Files\View;
/**
* Shared mount points can be moved by the user
*/
class SharedMount extends MountPoint implements MoveableMount {
/**
* @var \OC\Files\Storage\Shared $storage
*/
protected $storage = null;
/**
* @var \OC\Files\View
*/
private $recipientView;
/**
* @var string
*/
private $user;
/**
* @param string $storage
* @param string $mountpoint
* @param \OCP\Files\Storage\IStorageFactory $loader
*/
public function __construct($storage, $mountpoint, $arguments = null, $loader = null) {
$this->user = $arguments['user'];
$this->recipientView = new View('/' . $this->user . '/files');
$newMountPoint = $this->verifyMountPoint($arguments['share']);
$absMountPoint = '/' . $this->user . '/files' . $newMountPoint;
$arguments['ownerView'] = new View('/' . $arguments['share']['uid_owner'] . '/files');
parent::__construct($storage, $absMountPoint, $arguments, $loader);
}
/**
* check if the parent folder exists otherwise move the mount point up
*/
private function verifyMountPoint(&$share) {
$mountPoint = basename($share['file_target']);
$parent = dirname($share['file_target']);
if (!$this->recipientView->is_dir($parent)) {
$parent = Helper::getShareFolder();
}
$newMountPoint = \OCA\Files_Sharing\Helper::generateUniqueTarget(
\OC\Files\Filesystem::normalizePath($parent . '/' . $mountPoint),
[],
$this->recipientView
);
if ($newMountPoint !== $share['file_target']) {
$this->updateFileTarget($newMountPoint, $share);
$share['file_target'] = $newMountPoint;
$share['unique_name'] = true;
}
return $newMountPoint;
}
/**
* update fileTarget in the database if the mount point changed
*
* @param string $newPath
* @param array $share reference to the share which should be modified
* @return bool
*/
private function updateFileTarget($newPath, &$share) {
// if the user renames a mount point from a group share we need to create a new db entry
// for the unique name
if ($share['share_type'] === \OCP\Share::SHARE_TYPE_GROUP && empty($share['unique_name'])) {
$query = \OCP\DB::prepare('INSERT INTO `*PREFIX*share` (`item_type`, `item_source`, `item_target`,'
.' `share_type`, `share_with`, `uid_owner`, `permissions`, `stime`, `file_source`,'
.' `file_target`, `token`, `parent`) VALUES (?,?,?,?,?,?,?,?,?,?,?,?)');
$arguments = array($share['item_type'], $share['item_source'], $share['item_target'],
2, $this->user, $share['uid_owner'], $share['permissions'], $share['stime'], $share['file_source'],
$newPath, $share['token'], $share['id']);
} else {
// rename mount point
$query = \OCP\DB::prepare(
'Update `*PREFIX*share`
SET `file_target` = ?
WHERE `id` = ?'
);
$arguments = array($newPath, $share['id']);
}
$result = $query->execute($arguments);
return $result === 1 ? true : false;
}
/**
* Format a path to be relative to the /user/files/ directory
*
* @param string $path the absolute path
* @return string e.g. turns '/admin/files/test.txt' into '/test.txt'
*/
protected function stripUserFilesPath($path) {
$trimmed = ltrim($path, '/');
$split = explode('/', $trimmed);
// it is not a file relative to data/user/files
if (count($split) < 3 || $split[1] !== 'files') {
\OCP\Util::writeLog('file sharing',
'Can not strip userid and "files/" from path: ' . $path,
\OCP\Util::ERROR);
throw new \OCA\Files_Sharing\Exceptions\BrokenPath('Path does not start with /user/files', 10);
}
// skip 'user' and 'files'
$sliced = array_slice($split, 2);
$relPath = implode('/', $sliced);
return '/' . $relPath;
}
/**
* Move the mount point to $target
*
* @param string $target the target mount point
* @return bool
*/
public function moveMount($target) {
$relTargetPath = $this->stripUserFilesPath($target);
$share = $this->storage->getShare();
$result = true;
if (!empty($share['grouped'])) {
foreach ($share['grouped'] as $s) {
$result = $this->updateFileTarget($relTargetPath, $s) && $result;
}
} else {
$result = $this->updateFileTarget($relTargetPath, $share) && $result;
}
if ($result) {
$this->setMountPoint($target);
$this->storage->setUniqueName();
$this->storage->setMountPoint($relTargetPath);
} else {
\OCP\Util::writeLog('file sharing',
'Could not rename mount point for shared folder "' . $this->getMountPoint() . '" to "' . $target . '"',
\OCP\Util::ERROR);
}
return $result;
}
/**
* Remove the mount points
*
* @return bool
*/
public function removeMount() {
$mountManager = \OC\Files\Filesystem::getMountManager();
/** @var \OC\Files\Storage\Shared */
$storage = $this->getStorage();
$result = $storage->unshareStorage();
$mountManager->removeMount($this->mountPoint);
return $result;
}
public function getShare() {
return $this->getStorage()->getShare();
}
}
|
