170 lines
4.7 KiB
PHP
170 lines
4.7 KiB
PHP
<?php
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/**
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* @author Robin McCorkell <rmccorkell@owncloud.com>
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*
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* @copyright Copyright (c) 2015, ownCloud, Inc.
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OCA\Files_External\Service;
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use \OCA\Files_external\Service\GlobalStoragesService;
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use \OCA\Files_External\Service\BackendService;
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use \OCP\IUserSession;
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use \OCP\IGroupManager;
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use \OCA\Files_External\Service\UserTrait;
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use \OCA\Files_External\Lib\StorageConfig;
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/**
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* Service class to read global storages applicable to the user
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* Read-only access available, attempting to write will throw DomainException
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*/
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class UserGlobalStoragesService extends GlobalStoragesService {
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use UserTrait;
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/** @var IGroupManager */
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protected $groupManager;
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/**
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* @param BackendService $backendService
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* @param IUserSession $userSession
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* @param IGroupManager $groupManager
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*/
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public function __construct(
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BackendService $backendService,
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IUserSession $userSession,
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IGroupManager $groupManager
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) {
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parent::__construct($backendService);
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$this->userSession = $userSession;
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$this->groupManager = $groupManager;
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}
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/**
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* Replace config hash ID with real IDs, for migrating legacy storages
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*
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* @param StorageConfig[] $storages Storages with real IDs
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* @param StorageConfig[] $storagesWithConfigHash Storages with config hash IDs
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*/
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protected function setRealStorageIds(array &$storages, array $storagesWithConfigHash) {
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// as a read-only view, storage IDs don't need to be real
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foreach ($storagesWithConfigHash as $storage) {
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$storages[$storage->getId()] = $storage;
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}
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}
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/**
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* Read legacy config data
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*
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* @return array list of mount configs
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*/
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protected function readLegacyConfig() {
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// read global config
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$data = parent::readLegacyConfig();
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$userId = $this->getUser()->getUID();
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// don't use array_filter() with ARRAY_FILTER_USE_KEY, it's PHP 5.6+
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if (isset($data[\OC_Mount_Config::MOUNT_TYPE_USER])) {
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$newData = [];
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foreach ($data[\OC_Mount_Config::MOUNT_TYPE_USER] as $key => $value) {
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if (strtolower($key) === strtolower($userId) || $key === 'all') {
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$newData[$key] = $value;
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}
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}
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$data[\OC_Mount_Config::MOUNT_TYPE_USER] = $newData;
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}
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if (isset($data[\OC_Mount_Config::MOUNT_TYPE_GROUP])) {
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$newData = [];
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foreach ($data[\OC_Mount_Config::MOUNT_TYPE_GROUP] as $key => $value) {
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if ($this->groupManager->isInGroup($userId, $key)) {
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$newData[$key] = $value;
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}
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}
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$data[\OC_Mount_Config::MOUNT_TYPE_GROUP] = $newData;
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}
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return $data;
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}
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/**
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* Write legacy config data
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*
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* @param array $mountPoints
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*/
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protected function writeLegacyConfig(array $mountPoints) {
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throw new \DomainException('UserGlobalStoragesService writing disallowed');
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}
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/**
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* Get unique storages, in case two are defined with the same mountpoint
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* Higher priority storages take precedence
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*
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* @return StorageConfig[]
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*/
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public function getUniqueStorages() {
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$storages = $this->getAllStorages();
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$storagesByMountpoint = [];
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foreach ($storages as $storage) {
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$storagesByMountpoint[$storage->getMountPoint()][] = $storage;
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}
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$result = [];
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foreach ($storagesByMountpoint as $storageList) {
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$storage = array_reduce($storageList, function($carry, $item) {
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if (isset($carry)) {
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$carryPriorityType = $this->getPriorityType($carry);
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$itemPriorityType = $this->getPriorityType($item);
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if ($carryPriorityType > $itemPriorityType) {
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return $carry;
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} elseif ($carryPriorityType === $itemPriorityType) {
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if ($carry->getPriority() > $item->getPriority()) {
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return $carry;
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}
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}
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}
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return $item;
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});
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$result[$storage->getID()] = $storage;
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}
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return $result;
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}
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/**
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* Get a priority 'type', where a bigger number means higher priority
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* user applicable > group applicable > 'all'
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*
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* @param StorageConfig $storage
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* @return int
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*/
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protected function getPriorityType(StorageConfig $storage) {
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$applicableUsers = $storage->getApplicableUsers();
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$applicableGroups = $storage->getApplicableGroups();
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if ($applicableUsers && $applicableUsers[0] !== 'all') {
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return 2;
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}
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if ($applicableGroups) {
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return 1;
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}
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return 0;
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}
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}
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