nextcloud/lib/private/Files/Mount/ObjectHomeMountProvider.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Vlastimil Pecinka <pecinka@email.cz>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Files\Mount;
use OCP\Files\Config\IHomeMountProvider;
use OCP\Files\Storage\IStorageFactory;
use OCP\IConfig;
use OCP\ILogger;
use OCP\IUser;
/**
* Mount provider for object store home storages
*/
class ObjectHomeMountProvider implements IHomeMountProvider {
/**
* @var IConfig
*/
private $config;
/**
* ObjectStoreHomeMountProvider constructor.
*
* @param IConfig $config
*/
public function __construct(IConfig $config) {
$this->config = $config;
}
/**
* Get the cache mount for a user
*
* @param IUser $user
* @param IStorageFactory $loader
* @return \OCP\Files\Mount\IMountPoint
*/
public function getHomeMountForUser(IUser $user, IStorageFactory $loader) {
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$config = $this->getMultiBucketObjectStoreConfig($user);
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if ($config === null) {
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$config = $this->getSingleBucketObjectStoreConfig($user);
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}
if ($config === null) {
return null;
}
return new MountPoint('\OC\Files\ObjectStore\HomeObjectStoreStorage', '/' . $user->getUID(), $config['arguments'], $loader);
}
/**
* @param IUser $user
* @return array|null
*/
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private function getSingleBucketObjectStoreConfig(IUser $user) {
$config = $this->config->getSystemValue('objectstore');
if (!is_array($config)) {
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return null;
}
// sanity checks
if (empty($config['class'])) {
\OCP\Util::writeLog('files', 'No class given for objectstore', ILogger::ERROR);
}
if (!isset($config['arguments'])) {
$config['arguments'] = [];
}
// instantiate object store implementation
$config['arguments']['objectstore'] = new $config['class']($config['arguments']);
$config['arguments']['user'] = $user;
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return $config;
}
/**
* @param IUser $user
* @return array|null
*/
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private function getMultiBucketObjectStoreConfig(IUser $user) {
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$config = $this->config->getSystemValue('objectstore_multibucket');
if (!is_array($config)) {
return null;
}
// sanity checks
if (empty($config['class'])) {
\OCP\Util::writeLog('files', 'No class given for objectstore', ILogger::ERROR);
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}
if (!isset($config['arguments'])) {
$config['arguments'] = [];
}
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$bucket = $this->config->getUserValue($user->getUID(), 'homeobjectstore', 'bucket', null);
if ($bucket === null) {
/*
* Use any provided bucket argument as prefix
* and add the mapping from username => bucket
*/
if (!isset($config['arguments']['bucket'])) {
$config['arguments']['bucket'] = '';
}
$mapper = new \OC\Files\ObjectStore\Mapper($user);
$numBuckets = isset($config['arguments']['num_buckets']) ? $config['arguments']['num_buckets'] : 64;
$config['arguments']['bucket'] .= $mapper->getBucket($numBuckets);
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$this->config->setUserValue($user->getUID(), 'homeobjectstore', 'bucket', $config['arguments']['bucket']);
} else {
$config['arguments']['bucket'] = $bucket;
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}
// instantiate object store implementation
$config['arguments']['objectstore'] = new $config['class']($config['arguments']);
$config['arguments']['user'] = $user;
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return $config;
}
}