345 lines
8.8 KiB
PHP
345 lines
8.8 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Jesús Macias <jmacias@solidgear.es>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Juan Pablo Villafáñez <jvillafanez@solidgear.es>
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* @author Robin Appelman <icewind@owncloud.com>
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* @author Robin McCorkell <robin@mccorkell.me.uk>
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* @author Vincent Petry <pvince81@owncloud.com>
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*
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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\Controller;
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use OCP\ILogger;
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use \OCP\IRequest;
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use \OCP\IL10N;
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use \OCP\AppFramework\Http\DataResponse;
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use \OCP\AppFramework\Controller;
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use \OCP\AppFramework\Http;
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use OCA\Files_External\Service\StoragesService;
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use OCA\Files_External\NotFoundException;
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use OCA\Files_External\Lib\StorageConfig;
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use \OCA\Files_External\Lib\Backend\Backend;
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use \OCA\Files_External\Lib\Auth\AuthMechanism;
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use \OCP\Files\StorageNotAvailableException;
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use \OCA\Files_External\Lib\InsufficientDataForMeaningfulAnswerException;
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/**
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* Base class for storages controllers
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*/
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abstract class StoragesController extends Controller {
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/**
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* L10N service
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*
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* @var IL10N
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*/
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protected $l10n;
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/**
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* Storages service
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*
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* @var StoragesService
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*/
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protected $service;
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/**
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* @var ILogger
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*/
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protected $logger;
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/**
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* Creates a new storages controller.
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*
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* @param string $AppName application name
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* @param IRequest $request request object
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* @param IL10N $l10n l10n service
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* @param StoragesService $storagesService storage service
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* @param ILogger $logger
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*/
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public function __construct(
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$AppName,
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IRequest $request,
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IL10N $l10n,
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StoragesService $storagesService,
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ILogger $logger
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) {
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parent::__construct($AppName, $request);
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$this->l10n = $l10n;
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$this->service = $storagesService;
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$this->logger = $logger;
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}
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/**
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* Create a storage from its parameters
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*
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* @param string $mountPoint storage mount point
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* @param string $backend backend identifier
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* @param string $authMechanism authentication mechanism identifier
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* @param array $backendOptions backend-specific options
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* @param array|null $mountOptions mount-specific options
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* @param array|null $applicableUsers users for which to mount the storage
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* @param array|null $applicableGroups groups for which to mount the storage
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* @param int|null $priority priority
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*
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* @return StorageConfig|DataResponse
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*/
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protected function createStorage(
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$mountPoint,
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$backend,
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$authMechanism,
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$backendOptions,
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$mountOptions = null,
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$applicableUsers = null,
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$applicableGroups = null,
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$priority = null
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) {
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try {
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return $this->service->createStorage(
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$mountPoint,
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$backend,
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$authMechanism,
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$backendOptions,
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$mountOptions,
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$applicableUsers,
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$applicableGroups,
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$priority
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);
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} catch (\InvalidArgumentException $e) {
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$this->logger->logException($e);
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return new DataResponse(
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[
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'message' => (string)$this->l10n->t('Invalid backend or authentication mechanism class')
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],
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Http::STATUS_UNPROCESSABLE_ENTITY
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);
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}
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}
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/**
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* Validate storage config
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*
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* @param StorageConfig $storage storage config
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*1
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* @return DataResponse|null returns response in case of validation error
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*/
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protected function validate(StorageConfig $storage) {
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$mountPoint = $storage->getMountPoint();
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if ($mountPoint === '' || $mountPoint === '/') {
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return new DataResponse(
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array(
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'message' => (string)$this->l10n->t('Invalid mount point')
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),
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Http::STATUS_UNPROCESSABLE_ENTITY
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);
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}
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if ($storage->getBackendOption('objectstore')) {
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// objectstore must not be sent from client side
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return new DataResponse(
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array(
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'message' => (string)$this->l10n->t('Objectstore forbidden')
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),
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Http::STATUS_UNPROCESSABLE_ENTITY
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);
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}
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/** @var Backend */
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$backend = $storage->getBackend();
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/** @var AuthMechanism */
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$authMechanism = $storage->getAuthMechanism();
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if ($backend->checkDependencies()) {
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// invalid backend
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return new DataResponse(
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array(
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'message' => (string)$this->l10n->t('Invalid storage backend "%s"', [
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$backend->getIdentifier()
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])
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),
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Http::STATUS_UNPROCESSABLE_ENTITY
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);
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}
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if (!$backend->isVisibleFor($this->service->getVisibilityType())) {
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// not permitted to use backend
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return new DataResponse(
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array(
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'message' => (string)$this->l10n->t('Not permitted to use backend "%s"', [
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$backend->getIdentifier()
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])
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),
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Http::STATUS_UNPROCESSABLE_ENTITY
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);
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}
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if (!$authMechanism->isVisibleFor($this->service->getVisibilityType())) {
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// not permitted to use auth mechanism
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return new DataResponse(
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array(
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'message' => (string)$this->l10n->t('Not permitted to use authentication mechanism "%s"', [
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$authMechanism->getIdentifier()
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])
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),
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Http::STATUS_UNPROCESSABLE_ENTITY
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);
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}
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if (!$backend->validateStorage($storage)) {
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// unsatisfied parameters
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return new DataResponse(
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array(
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'message' => (string)$this->l10n->t('Unsatisfied backend parameters')
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),
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Http::STATUS_UNPROCESSABLE_ENTITY
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);
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}
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if (!$authMechanism->validateStorage($storage)) {
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// unsatisfied parameters
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return new DataResponse(
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[
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'message' => (string)$this->l10n->t('Unsatisfied authentication mechanism parameters')
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],
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Http::STATUS_UNPROCESSABLE_ENTITY
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);
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}
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return null;
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}
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protected function manipulateStorageConfig(StorageConfig $storage) {
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/** @var AuthMechanism */
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$authMechanism = $storage->getAuthMechanism();
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$authMechanism->manipulateStorageConfig($storage);
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/** @var Backend */
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$backend = $storage->getBackend();
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$backend->manipulateStorageConfig($storage);
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}
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/**
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* Check whether the given storage is available / valid.
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*
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* Note that this operation can be time consuming depending
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* on whether the remote storage is available or not.
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*
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* @param StorageConfig $storage storage configuration
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* @param bool $testOnly whether to storage should only test the connection or do more things
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*/
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protected function updateStorageStatus(StorageConfig &$storage, $testOnly = true) {
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try {
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$this->manipulateStorageConfig($storage);
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/** @var Backend */
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$backend = $storage->getBackend();
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// update status (can be time-consuming)
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$storage->setStatus(
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\OC_Mount_Config::getBackendStatus(
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$backend->getStorageClass(),
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$storage->getBackendOptions(),
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false,
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$testOnly
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)
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);
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} catch (InsufficientDataForMeaningfulAnswerException $e) {
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$status = $e->getCode() ? $e->getCode() : StorageNotAvailableException::STATUS_INDETERMINATE;
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$storage->setStatus(
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$status,
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$this->l10n->t('Insufficient data: %s', [$e->getMessage()])
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);
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} catch (StorageNotAvailableException $e) {
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$storage->setStatus(
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$e->getCode(),
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$this->l10n->t('%s', [$e->getMessage()])
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);
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} catch (\Exception $e) {
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// FIXME: convert storage exceptions to StorageNotAvailableException
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$storage->setStatus(
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StorageNotAvailableException::STATUS_ERROR,
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get_class($e).': '.$e->getMessage()
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);
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}
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}
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/**
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* Get all storage entries
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*
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* @return DataResponse
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*/
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public function index() {
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$storages = $this->service->getStorages();
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return new DataResponse(
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$storages,
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Http::STATUS_OK
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);
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}
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/**
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* Get an external storage entry.
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*
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* @param int $id storage id
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* @param bool $testOnly whether to storage should only test the connection or do more things
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*
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* @return DataResponse
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*/
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public function show($id, $testOnly = true) {
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try {
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$storage = $this->service->getStorage($id);
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$this->updateStorageStatus($storage, $testOnly);
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} catch (NotFoundException $e) {
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return new DataResponse(
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[
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'message' => (string)$this->l10n->t('Storage with id "%i" not found', array($id))
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],
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Http::STATUS_NOT_FOUND
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);
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}
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return new DataResponse(
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$storage,
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Http::STATUS_OK
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);
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}
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/**
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* Deletes the storage with the given id.
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*
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* @param int $id storage id
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*
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* @return DataResponse
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*/
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public function destroy($id) {
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try {
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$this->service->removeStorage($id);
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} catch (NotFoundException $e) {
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return new DataResponse(
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[
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'message' => (string)$this->l10n->t('Storage with id "%i" not found', array($id))
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],
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Http::STATUS_NOT_FOUND
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);
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}
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return new DataResponse([], Http::STATUS_NO_CONTENT);
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}
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}
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