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<?php
/**
* Copyright (c) 2014 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OCA\Files_Sharing;
use OC\Files\Mount\MountPoint;
use OC\Files\Mount\MoveableMount;
/**
* Shared mount points can be moved by the user
*/
class SharedMount extends MountPoint implements MoveableMount {
/**
* @var \OC\Files\Storage\Shared $storage
*/
protected $storage = null;
public function __construct($storage, $mountpoint, $arguments = null, $loader = null) {
// first update the mount point before creating the parent
$newMountPoint = $this->verifyMountPoint($arguments['share'], $arguments['user']);
$absMountPoint = '/' . $arguments['user'] . '/files' . $newMountPoint;
parent::__construct($storage, $absMountPoint, $arguments, $loader);
}
/**
* check if the parent folder exists otherwise move the mount point up
*/
private function verifyMountPoint(&$share, $user) {
$mountPoint = basename($share['file_target']);
$parent = dirname($share['file_target']);
while (!\OC\Files\Filesystem::is_dir($parent)) {
$parent = dirname($parent);
}
$newMountPoint = \OCA\Files_Sharing\Helper::generateUniqueTarget(
\OC\Files\Filesystem::normalizePath($parent . '/' . $mountPoint),
array(),
new \OC\Files\View('/' . $user . '/files')
);
if($newMountPoint !== $share['file_target']) {
self::updateFileTarget($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 $share reference to the share which should be modified
* @return bool
*/
private static function updateFileTarget($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 = \OC_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, \OCP\User::getUser(), $share['uid_owner'], $share['permissions'], $share['stime'], $share['file_source'],
$newPath, $share['token'], $share['id']);
} else {
// rename mount point
$query = \OC_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;
}
}
|
