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[stable28] fix(files): Also restore shares after ownership transfer for object storage #44921

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Apr 18, 2024
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[stable28] fix(files): Also restore shares after ownership transfer for object storage #44921

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111 changes: 73 additions & 38 deletions apps/files/lib/Service/OwnershipTransferService.php
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Sascha Wiswedel <sascha.wiswedel@nextcloud.com>
* @author Tobia De Koninck <LEDfan@users.noreply.github.com>
* @author Ferdinand Thiessen <opensource@fthiessen.de>
*
* @license GNU AGPL version 3 or any later version
*
Expand All @@ -33,6 +34,7 @@
namespace OCA\Files\Service;

use Closure;
use OC\Encryption\Manager as EncryptionManager;
use OC\Files\Filesystem;
use OC\Files\View;
use OCA\Files\Exception\TransferOwnershipException;
Expand All @@ -41,6 +43,7 @@
use OCP\Files\FileInfo;
use OCP\Files\IHomeStorage;
use OCP\Files\InvalidPathException;
use OCP\Files\IRootFolder;
use OCP\Files\Mount\IMountManager;
use OCP\IUser;
use OCP\IUserManager;
Expand All @@ -58,31 +61,16 @@

class OwnershipTransferService {

/** @var IEncryptionManager */
private $encryptionManager;
private IEncryptionManager|EncryptionManager $encryptionManager;

/** @var IShareManager */
private $shareManager;

/** @var IMountManager */
private $mountManager;

/** @var IUserMountCache */
private $userMountCache;

/** @var IUserManager */
private $userManager;

public function __construct(IEncryptionManager $manager,
IShareManager $shareManager,
IMountManager $mountManager,
IUserMountCache $userMountCache,
IUserManager $userManager) {
$this->encryptionManager = $manager;
$this->shareManager = $shareManager;
$this->mountManager = $mountManager;
$this->userMountCache = $userMountCache;
$this->userManager = $userManager;
public function __construct(
IEncryptionManager $encryptionManager,
private IShareManager $shareManager,
private IMountManager $mountManager,
private IUserMountCache $userMountCache,
private IUserManager $userManager,
) {
$this->encryptionManager = $encryptionManager;
}

/**
Expand All @@ -95,13 +83,15 @@ public function __construct(IEncryptionManager $manager,
* @throws TransferOwnershipException
* @throws \OC\User\NoUserException
*/
public function transfer(IUser $sourceUser,
public function transfer(
IUser $sourceUser,
IUser $destinationUser,
string $path,
?OutputInterface $output = null,
bool $move = false,
bool $firstLogin = false,
bool $transferIncomingShares = false): void {
bool $transferIncomingShares = false,
): void {
$output = $output ?? new NullOutput();
$sourceUid = $sourceUser->getUID();
$destinationUid = $destinationUser->getUID();
Expand Down Expand Up @@ -183,10 +173,12 @@ public function transfer(IUser $sourceUser,
$output
);

$destinationPath = $finalTarget . '/' . $path;
// restore the shares
$this->restoreShares(
$sourceUid,
$destinationUid,
$destinationPath,
$shares,
$output
);
Expand Down Expand Up @@ -280,16 +272,35 @@ function (FileInfo $fileInfo) use ($progress) {
}
}

private function collectUsersShares(string $sourceUid,
/**
* @return array<array{share: IShare, suffix: string}>
*/
private function collectUsersShares(
string $sourceUid,
OutputInterface $output,
View $view,
string $path): array {
string $path,
): array {
$output->writeln("Collecting all share information for files and folders of $sourceUid ...");

$shares = [];
$progress = new ProgressBar($output);

foreach ([IShare::TYPE_GROUP, IShare::TYPE_USER, IShare::TYPE_LINK, IShare::TYPE_REMOTE, IShare::TYPE_ROOM, IShare::TYPE_EMAIL, IShare::TYPE_CIRCLE, IShare::TYPE_DECK, IShare::TYPE_SCIENCEMESH] as $shareType) {
$normalizedPath = Filesystem::normalizePath($path);

$supportedShareTypes = [
IShare::TYPE_GROUP,
IShare::TYPE_USER,
IShare::TYPE_LINK,
IShare::TYPE_REMOTE,
IShare::TYPE_ROOM,
IShare::TYPE_EMAIL,
IShare::TYPE_CIRCLE,
IShare::TYPE_DECK,
IShare::TYPE_SCIENCEMESH,
];

foreach ($supportedShareTypes as $shareType) {
$offset = 0;
while (true) {
$sharePage = $this->shareManager->getSharesBy($sourceUid, $shareType, null, true, 50, $offset);
Expand All @@ -298,17 +309,17 @@ private function collectUsersShares(string $sourceUid,
break;
}
if ($path !== "$sourceUid/files") {
$sharePage = array_filter($sharePage, function (IShare $share) use ($view, $path) {
$sharePage = array_filter($sharePage, function (IShare $share) use ($view, $normalizedPath) {
try {
$relativePath = $view->getPath($share->getNodeId());
$singleFileTranfer = $view->is_file($path);
$singleFileTranfer = $view->is_file($normalizedPath);
if ($singleFileTranfer) {
return Filesystem::normalizePath($relativePath) === Filesystem::normalizePath($path);
return Filesystem::normalizePath($relativePath) === $normalizedPath;
}

return mb_strpos(
Filesystem::normalizePath($relativePath . '/', false),
Filesystem::normalizePath($path . '/', false)) === 0;
$normalizedPath . '/') === 0;
} catch (\Exception $e) {
return false;
}
Expand All @@ -321,7 +332,11 @@ private function collectUsersShares(string $sourceUid,

$progress->finish();
$output->writeln('');
return $shares;

return array_map(fn (IShare $share) => [
'share' => $share,
'suffix' => substr(Filesystem::normalizePath($view->getPath($share->getNodeId())), strlen($normalizedPath)),
], $shares);
}

private function collectIncomingShares(string $sourceUid,
Expand Down Expand Up @@ -384,14 +399,22 @@ protected function transferFiles(string $sourceUid,
}
}

private function restoreShares(string $sourceUid,
/**
* @param string $targetLocation New location of the transfered node
* @param array<array{share: IShare, suffix: string}> $shares previously collected share information
*/
private function restoreShares(
string $sourceUid,
string $destinationUid,
string $targetLocation,
array $shares,
OutputInterface $output) {
OutputInterface $output,
):void {
$output->writeln("Restoring shares ...");
$progress = new ProgressBar($output, count($shares));
$rootFolder = \OCP\Server::get(IRootFolder::class);

foreach ($shares as $share) {
foreach ($shares as ['share' => $share, 'suffix' => $suffix]) {
try {
if ($share->getShareType() === IShare::TYPE_USER &&
$share->getSharedWith() === $destinationUid) {
Expand Down Expand Up @@ -419,7 +442,19 @@ private function restoreShares(string $sourceUid,
// trigger refetching of the node so that the new owner and mountpoint are taken into account
// otherwise the checks on the share update will fail due to the original node not being available in the new user scope
$this->userMountCache->clear();
$share->setNodeId($share->getNode()->getId());

try {
// Try to get the "old" id.
// Normally the ID is preserved,
// but for transferes between different storages the ID might change
$newNodeId = $share->getNode()->getId();
} catch (\OCP\Files\NotFoundException) {
// ID has changed due to transfer between different storages
// Try to get the new ID from the target path and suffix of the share
$node = $rootFolder->get(Filesystem::normalizePath($targetLocation . '/' . $suffix));
$newNodeId = $node->getId();
}
$share->setNodeId($newNodeId);

$this->shareManager->updateShare($share);
}
Expand Down
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