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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Carla Schroder <carla@owncloud.com>
* @author Joas Schilling <coding@schilljs.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @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\Command;
use OC\Files\Filesystem;
use OC\Files\View;
use OCP\Files\FileInfo;
use OCP\Files\Mount\IMountManager;
use OCP\IUser;
use OCP\IUserManager;
use OCP\Share\IManager;
use OCP\Share\IShare;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Helper\ProgressBar;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
class TransferOwnership extends Command {
/** @var IUserManager $userManager */
private $userManager;
/** @var IManager */
private $shareManager;
/** @var IMountManager */
private $mountManager;
/** @var FileInfo[] */
private $allFiles = [];
/** @var FileInfo[] */
private $encryptedFiles = [];
/** @var IShare[] */
private $shares = [];
/** @var string */
private $sourceUser;
/** @var string */
private $destinationUser;
/** @var string */
private $finalTarget;
public function __construct(IUserManager $userManager, IManager $shareManager, IMountManager $mountManager) {
$this->userManager = $userManager;
$this->shareManager = $shareManager;
$this->mountManager = $mountManager;
parent::__construct();
}
protected function configure() {
$this
->setName('files:transfer-ownership')
->setDescription('All files and folders are moved to another user - shares are moved as well.')
->addArgument(
'source-user',
InputArgument::REQUIRED,
'owner of files which shall be moved'
)
->addArgument(
'destination-user',
InputArgument::REQUIRED,
'user who will be the new owner of the files'
);
}
protected function execute(InputInterface $input, OutputInterface $output) {
$sourceUserObject = $this->userManager->get($input->getArgument('source-user'));
$destinationUserObject = $this->userManager->get($input->getArgument('destination-user'));
if (!$sourceUserObject instanceof IUser) {
$output->writeln("<error>Unknown source user $this->sourceUser</error>");
return 1;
}
if (!$destinationUserObject instanceof IUser) {
$output->writeln("<error>Unknown destination user $this->destinationUser</error>");
return 1;
}
$this->sourceUser = $sourceUserObject->getUID();
$this->destinationUser = $destinationUserObject->getUID();
// target user has to be ready
if (!\OC::$server->getEncryptionManager()->isReadyForUser($this->destinationUser)) {
$output->writeln("<error>The target user is not ready to accept files. The user has at least to be logged in once.</error>");
return 2;
}
$date = date('c');
$this->finalTarget = "$this->destinationUser/files/transferred from $this->sourceUser on $date";
// setup filesystem
Filesystem::initMountPoints($this->sourceUser);
Filesystem::initMountPoints($this->destinationUser);
// analyse source folder
$this->analyse($output);
// collect all the shares
$this->collectUsersShares($output);
// transfer the files
$this->transfer($output);
// restore the shares
$this->restoreShares($output);
}
private function walkFiles(View $view, $path, \Closure $callBack) {
foreach ($view->getDirectoryContent($path) as $fileInfo) {
if (!$callBack($fileInfo)) {
return;
}
if ($fileInfo->getType() === FileInfo::TYPE_FOLDER) {
$this->walkFiles($view, $fileInfo->getPath(), $callBack);
}
}
}
/**
* @param OutputInterface $output
* @throws \Exception
*/
protected function analyse(OutputInterface $output) {
$view = new View();
$output->writeln("Analysing files of $this->sourceUser ...");
$progress = new ProgressBar($output);
$progress->start();
$self = $this;
$this->walkFiles($view, "$this->sourceUser/files",
function (FileInfo $fileInfo) use ($progress, $self) {
if ($fileInfo->getType() === FileInfo::TYPE_FOLDER) {
return true;
}
$progress->advance();
$this->allFiles[] = $fileInfo;
if ($fileInfo->isEncrypted()) {
$this->encryptedFiles[] = $fileInfo;
}
return true;
});
$progress->finish();
$output->writeln('');
// no file is allowed to be encrypted
if (!empty($this->encryptedFiles)) {
$output->writeln("<error>Some files are encrypted - please decrypt them first</error>");
foreach($this->encryptedFiles as $encryptedFile) {
/** @var FileInfo $encryptedFile */
$output->writeln(" " . $encryptedFile->getPath());
}
throw new \Exception('Execution terminated.');
}
}
/**
* @param OutputInterface $output
*/
private function collectUsersShares(OutputInterface $output) {
$output->writeln("Collecting all share information for files and folder of $this->sourceUser ...");
$progress = new ProgressBar($output, count($this->shares));
foreach([\OCP\Share::SHARE_TYPE_GROUP, \OCP\Share::SHARE_TYPE_USER, \OCP\Share::SHARE_TYPE_LINK, \OCP\Share::SHARE_TYPE_REMOTE] as $shareType) {
$offset = 0;
while (true) {
$sharePage = $this->shareManager->getSharesBy($this->sourceUser, $shareType, null, true, 50, $offset);
$progress->advance(count($sharePage));
if (empty($sharePage)) {
break;
}
$this->shares = array_merge($this->shares, $sharePage);
$offset += 50;
}
}
$progress->finish();
$output->writeln('');
}
/**
* @param OutputInterface $output
*/
protected function transfer(OutputInterface $output) {
$view = new View();
$output->writeln("Transferring files to $this->finalTarget ...");
$view->rename("$this->sourceUser/files", $this->finalTarget);
// because the files folder is moved away we need to recreate it
$view->mkdir("$this->sourceUser/files");
}
/**
* @param OutputInterface $output
*/
private function restoreShares(OutputInterface $output) {
$output->writeln("Restoring shares ...");
$progress = new ProgressBar($output, count($this->shares));
foreach($this->shares as $share) {
try {
if ($share->getSharedWith() === $this->destinationUser) {
// Unmount the shares before deleting, so we don't try to get the storage later on.
$shareMountPoint = $this->mountManager->find('/' . $this->destinationUser . '/files' . $share->getTarget());
if ($shareMountPoint) {
$this->mountManager->removeMount($shareMountPoint->getMountPoint());
}
$this->shareManager->deleteShare($share);
} else {
if ($share->getShareOwner() === $this->sourceUser) {
$share->setShareOwner($this->destinationUser);
}
if ($share->getSharedBy() === $this->sourceUser) {
$share->setSharedBy($this->destinationUser);
}
$this->shareManager->updateShare($share);
}
} catch (\OCP\Files\NotFoundException $e) {
$output->writeln('<error>Share with id ' . $share->getId() . ' points at deleted file, skipping</error>');
} catch (\Exception $e) {
$output->writeln('<error>Could not restore share with id ' . $share->getId() . ':' . $e->getTraceAsString() . '</error>');
}
$progress->advance();
}
$progress->finish();
$output->writeln('');
}
}
|
