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<?php
/**
* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
* SPDX-License-Identifier: AGPL-3.0-only
*/
namespace OCA\Files_External\Service;
use OCA\Files_External\Lib\StorageConfig;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\Files\Config\IUserMountCache;
use OCP\IGroupManager;
use OCP\IUser;
use OCP\IUserSession;
/**
* Service class to read global storages applicable to the user
* Read-only access available, attempting to write will throw DomainException
*/
class UserGlobalStoragesService extends GlobalStoragesService {
use UserTrait;
/** @var IGroupManager */
protected $groupManager;
/**
* @param BackendService $backendService
* @param DBConfigService $dbConfig
* @param IUserSession $userSession
* @param IGroupManager $groupManager
* @param IUserMountCache $userMountCache
* @param IEventDispatcher $eventDispatcher
*/
public function __construct(
BackendService $backendService,
DBConfigService $dbConfig,
IUserSession $userSession,
IGroupManager $groupManager,
IUserMountCache $userMountCache,
IEventDispatcher $eventDispatcher,
) {
parent::__construct($backendService, $dbConfig, $userMountCache, $eventDispatcher);
$this->userSession = $userSession;
$this->groupManager = $groupManager;
}
/**
* Replace config hash ID with real IDs, for migrating legacy storages
*
* @param StorageConfig[] $storages Storages with real IDs
* @param StorageConfig[] $storagesWithConfigHash Storages with config hash IDs
*/
protected function setRealStorageIds(array &$storages, array $storagesWithConfigHash) {
// as a read-only view, storage IDs don't need to be real
foreach ($storagesWithConfigHash as $storage) {
$storages[$storage->getId()] = $storage;
}
}
protected function readDBConfig() {
$userMounts = $this->dbConfig->getAdminMountsFor(DBConfigService::APPLICABLE_TYPE_USER, $this->getUser()->getUID());
$globalMounts = $this->dbConfig->getAdminMountsFor(DBConfigService::APPLICABLE_TYPE_GLOBAL, null);
$groups = $this->groupManager->getUserGroupIds($this->getUser());
if (count($groups) !== 0) {
$groupMounts = $this->dbConfig->getAdminMountsForMultiple(DBConfigService::APPLICABLE_TYPE_GROUP, $groups);
} else {
$groupMounts = [];
}
return array_merge($userMounts, $groupMounts, $globalMounts);
}
public function addStorage(StorageConfig $newStorage) {
throw new \DomainException('UserGlobalStoragesService writing disallowed');
}
public function updateStorage(StorageConfig $updatedStorage) {
throw new \DomainException('UserGlobalStoragesService writing disallowed');
}
/**
* @param integer $id
*/
public function removeStorage($id) {
throw new \DomainException('UserGlobalStoragesService writing disallowed');
}
/**
* Get unique storages, in case two are defined with the same mountpoint
* Higher priority storages take precedence
*
* @return StorageConfig[]
*/
public function getUniqueStorages() {
$storages = $this->getStorages();
$storagesByMountpoint = [];
foreach ($storages as $storage) {
$storagesByMountpoint[$storage->getMountPoint()][] = $storage;
}
$result = [];
foreach ($storagesByMountpoint as $storageList) {
$storage = array_reduce($storageList, function ($carry, $item) {
if (isset($carry)) {
$carryPriorityType = $this->getPriorityType($carry);
$itemPriorityType = $this->getPriorityType($item);
if ($carryPriorityType > $itemPriorityType) {
return $carry;
} elseif ($carryPriorityType === $itemPriorityType) {
if ($carry->getPriority() > $item->getPriority()) {
return $carry;
}
}
}
return $item;
});
$result[$storage->getID()] = $storage;
}
return $result;
}
/**
* Get a priority 'type', where a bigger number means higher priority
* user applicable > group applicable > 'all'
*
* @param StorageConfig $storage
* @return int
*/
protected function getPriorityType(StorageConfig $storage) {
$applicableUsers = $storage->getApplicableUsers();
$applicableGroups = $storage->getApplicableGroups();
if ($applicableUsers && $applicableUsers[0] !== 'all') {
return 2;
}
if ($applicableGroups) {
return 1;
}
return 0;
}
protected function isApplicable(StorageConfig $config) {
$applicableUsers = $config->getApplicableUsers();
$applicableGroups = $config->getApplicableGroups();
if (count($applicableUsers) === 0 && count($applicableGroups) === 0) {
return true;
}
if (in_array($this->getUser()->getUID(), $applicableUsers, true)) {
return true;
}
$groupIds = $this->groupManager->getUserGroupIds($this->getUser());
foreach ($groupIds as $groupId) {
if (in_array($groupId, $applicableGroups, true)) {
return true;
}
}
return false;
}
/**
* Gets all storages for the user, admin, personal, global, etc
*
* @param IUser|null $user user to get the storages for, if not set the currently logged in user will be used
* @return StorageConfig[] array of storage configs
*/
public function getAllStoragesForUser(?IUser $user = null) {
if (is_null($user)) {
$user = $this->getUser();
}
if (is_null($user)) {
return [];
}
$groupIds = $this->groupManager->getUserGroupIds($user);
$mounts = $this->dbConfig->getMountsForUser($user->getUID(), $groupIds);
$configs = array_map([$this, 'getStorageConfigFromDBMount'], $mounts);
$configs = array_filter($configs, function ($config) {
return $config instanceof StorageConfig;
});
$keys = array_map(function (StorageConfig $config) {
return $config->getId();
}, $configs);
$storages = array_combine($keys, $configs);
return array_filter($storages, [$this, 'validateStorage']);
}
}
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