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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2022 Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\Files;
use OC\Files\ObjectStore\HomeObjectStoreStorage;
use OC\Files\Storage\Common;
use OC\Files\Storage\Home;
use OC\Files\Storage\Storage;
use OC\Files\Storage\Wrapper\Availability;
use OC\Files\Storage\Wrapper\Encoding;
use OC\Files\Storage\Wrapper\PermissionsMask;
use OC\Files\Storage\Wrapper\Quota;
use OC_App;
use OC_Hook;
use OC_Util;
use OCP\Constants;
use OCP\Diagnostics\IEventLogger;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\Files\Config\IMountProviderCollection;
use OCP\Files\Events\Node\FilesystemTearedDownEvent;
use OCP\Files\Mount\IMountManager;
use OCP\Files\Mount\IMountPoint;
use OCP\Files\Storage\IStorage;
use OCP\IUser;
use OCP\IUserSession;
class SetupManager {
private bool $rootSetup = false;
private IEventLogger $eventLogger;
private IMountProviderCollection $mountProviderCollection;
private IMountManager $mountManager;
private IUserSession $userSession;
private array $setupUsers = [];
private IEventDispatcher $eventDispatcher;
public function __construct(
IEventLogger $eventLogger,
IMountProviderCollection $mountProviderCollection,
IMountManager $mountManager,
IUserSession $userSession,
IEventDispatcher $eventDispatcher
) {
$this->eventLogger = $eventLogger;
$this->mountProviderCollection = $mountProviderCollection;
$this->mountManager = $mountManager;
$this->userSession = $userSession;
$this->eventDispatcher = $eventDispatcher;
}
private function setupBuiltinWrappers() {
Filesystem::addStorageWrapper('mount_options', function ($mountPoint, IStorage $storage, IMountPoint $mount) {
if ($storage->instanceOfStorage(Common::class)) {
$storage->setMountOptions($mount->getOptions());
}
return $storage;
});
Filesystem::addStorageWrapper('enable_sharing', function ($mountPoint, IStorage $storage, IMountPoint $mount) {
if (!$mount->getOption('enable_sharing', true)) {
return new PermissionsMask([
'storage' => $storage,
'mask' => Constants::PERMISSION_ALL - Constants::PERMISSION_SHARE,
]);
}
return $storage;
});
// install storage availability wrapper, before most other wrappers
Filesystem::addStorageWrapper('oc_availability', function ($mountPoint, IStorage $storage) {
if (!$storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage') && !$storage->isLocal()) {
return new Availability(['storage' => $storage]);
}
return $storage;
});
Filesystem::addStorageWrapper('oc_encoding', function ($mountPoint, IStorage $storage, IMountPoint $mount) {
if ($mount->getOption('encoding_compatibility', false) && !$storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage') && !$storage->isLocal()) {
return new Encoding(['storage' => $storage]);
}
return $storage;
});
Filesystem::addStorageWrapper('oc_quota', function ($mountPoint, $storage) {
// set up quota for home storages, even for other users
// which can happen when using sharing
/**
* @var Storage $storage
*/
if ($storage->instanceOfStorage(HomeObjectStoreStorage::class) || $storage->instanceOfStorage(Home::class)) {
if (is_object($storage->getUser())) {
$quota = OC_Util::getUserQuota($storage->getUser());
if ($quota !== \OCP\Files\FileInfo::SPACE_UNLIMITED) {
return new Quota(['storage' => $storage, 'quota' => $quota, 'root' => 'files']);
}
}
}
return $storage;
});
Filesystem::addStorageWrapper('readonly', function ($mountPoint, IStorage $storage, IMountPoint $mount) {
/*
* Do not allow any operations that modify the storage
*/
if ($mount->getOption('readonly', false)) {
return new PermissionsMask([
'storage' => $storage,
'mask' => Constants::PERMISSION_ALL & ~(
Constants::PERMISSION_UPDATE |
Constants::PERMISSION_CREATE |
Constants::PERMISSION_DELETE
),
]);
}
return $storage;
});
}
public function setupForCurrentUser() {
$user = $this->userSession->getUser();
if ($user) {
$this->setupForUser($user);
} else {
$this->setupRoot();
}
}
public function setupForUser(IUser $user) {
$this->setupRoot();
if (in_array($user->getUID(), $this->setupUsers, true)) {
return;
}
$this->setupUsers[] = $user->getUID();
$this->eventLogger->start('setup_fs', 'Setup filesystem');
$prevLogging = Filesystem::logWarningWhenAddingStorageWrapper(false);
OC_Hook::emit('OC_Filesystem', 'preSetup', ['user' => $user->getUID()]);
Filesystem::logWarningWhenAddingStorageWrapper($prevLogging);
$userDir = '/' . $user->getUID() . '/files';
Filesystem::init($user, $userDir);
OC_Hook::emit('OC_Filesystem', 'setup', ['user' => $user->getUID(), 'user_dir' => $userDir]);
$this->eventLogger->end('setup_fs');
}
public function setupRoot() {
//setting up the filesystem twice can only lead to trouble
if ($this->rootSetup) {
return;
}
$this->rootSetup = true;
$this->eventLogger->start('setup_root_fs', 'Setup root filesystem');
// load all filesystem apps before, so no setup-hook gets lost
OC_App::loadApps(['filesystem']);
$prevLogging = Filesystem::logWarningWhenAddingStorageWrapper(false);
$this->setupBuiltinWrappers();
Filesystem::logWarningWhenAddingStorageWrapper($prevLogging);
$rootMounts = $this->mountProviderCollection->getRootMounts();
foreach ($rootMounts as $rootMountProvider) {
$this->mountManager->addMount($rootMountProvider);
}
$this->eventLogger->end('setup_root_fs');
}
public function tearDown() {
$this->setupUsers = [];
$this->rootSetup = false;
$this->mountManager->clear();
$this->eventDispatcher->dispatchTyped(new FilesystemTearedDownEvent());
}
}
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