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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
*
* @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\Config;
use OC\Hooks\Emitter;
use OC\Hooks\EmitterTrait;
use OCP\Files\Config\IHomeMountProvider;
use OCP\Files\Config\IMountProviderCollection;
use OCP\Files\Config\IMountProvider;
use OCP\Files\Config\IUserMountCache;
use OCP\Files\Mount\IMountManager;
use OCP\Files\Mount\IMountPoint;
use OCP\Files\Storage\IStorageFactory;
use OCP\IUser;
class MountProviderCollection implements IMountProviderCollection, Emitter {
use EmitterTrait;
/**
* @var \OCP\Files\Config\IHomeMountProvider[]
*/
private $homeProviders = [];
/**
* @var \OCP\Files\Config\IMountProvider[]
*/
private $providers = array();
/**
* @var \OCP\Files\Storage\IStorageFactory
*/
private $loader;
/**
* @var \OCP\Files\Config\IUserMountCache
*/
private $mountCache;
/** @var callable[] */
private $mountFilters = [];
/**
* @param \OCP\Files\Storage\IStorageFactory $loader
* @param IUserMountCache $mountCache
*/
public function __construct(IStorageFactory $loader, IUserMountCache $mountCache) {
$this->loader = $loader;
$this->mountCache = $mountCache;
}
/**
* Get all configured mount points for the user
*
* @param \OCP\IUser $user
* @return \OCP\Files\Mount\IMountPoint[]
*/
public function getMountsForUser(IUser $user) {
$loader = $this->loader;
$mounts = array_map(function (IMountProvider $provider) use ($user, $loader) {
return $provider->getMountsForUser($user, $loader);
}, $this->providers);
$mounts = array_filter($mounts, function ($result) {
return is_array($result);
});
$mounts = array_reduce($mounts, function (array $mounts, array $providerMounts) {
return array_merge($mounts, $providerMounts);
}, array());
return $this->filterMounts($user, $mounts);
}
public function addMountForUser(IUser $user, IMountManager $mountManager) {
// shared mount provider gets to go last since it needs to know existing files
// to check for name collisions
$firstMounts = [];
$firstProviders = array_filter($this->providers, function (IMountProvider $provider) {
return (get_class($provider) !== 'OCA\Files_Sharing\MountProvider');
});
$lastProviders = array_filter($this->providers, function (IMountProvider $provider) {
return (get_class($provider) === 'OCA\Files_Sharing\MountProvider');
});
foreach ($firstProviders as $provider) {
$mounts = $provider->getMountsForUser($user, $this->loader);
if (is_array($mounts)) {
$firstMounts = array_merge($firstMounts, $mounts);
}
}
$firstMounts = $this->filterMounts($user, $firstMounts);
array_walk($firstMounts, [$mountManager, 'addMount']);
$lateMounts = [];
foreach ($lastProviders as $provider) {
$mounts = $provider->getMountsForUser($user, $this->loader);
if (is_array($mounts)) {
$lateMounts = array_merge($lateMounts, $mounts);
}
}
$lateMounts = $this->filterMounts($user, $lateMounts);
array_walk($lateMounts, [$mountManager, 'addMount']);
return array_merge($lateMounts, $firstMounts);
}
/**
* Get the configured home mount for this user
*
* @param \OCP\IUser $user
* @return \OCP\Files\Mount\IMountPoint
* @since 9.1.0
*/
public function getHomeMountForUser(IUser $user) {
/** @var \OCP\Files\Config\IHomeMountProvider[] $providers */
$providers = array_reverse($this->homeProviders); // call the latest registered provider first to give apps an opportunity to overwrite builtin
foreach ($providers as $homeProvider) {
if ($mount = $homeProvider->getHomeMountForUser($user, $this->loader)) {
$mount->setMountPoint('/' . $user->getUID()); //make sure the mountpoint is what we expect
return $mount;
}
}
throw new \Exception('No home storage configured for user ' . $user);
}
/**
* Add a provider for mount points
*
* @param \OCP\Files\Config\IMountProvider $provider
*/
public function registerProvider(IMountProvider $provider) {
$this->providers[] = $provider;
$this->emit('\OC\Files\Config', 'registerMountProvider', [$provider]);
}
public function registerMountFilter(callable $filter) {
$this->mountFilters[] = $filter;
}
private function filterMounts(IUser $user, array $mountPoints) {
return array_filter($mountPoints, function (IMountPoint $mountPoint) use ($user) {
foreach ($this->mountFilters as $filter) {
if ($filter($mountPoint, $user) === false) {
return false;
}
}
return true;
});
}
/**
* Add a provider for home mount points
*
* @param \OCP\Files\Config\IHomeMountProvider $provider
* @since 9.1.0
*/
public function registerHomeProvider(IHomeMountProvider $provider) {
$this->homeProviders[] = $provider;
$this->emit('\OC\Files\Config', 'registerHomeMountProvider', [$provider]);
}
/**
* Cache mounts for user
*
* @param IUser $user
* @param IMountPoint[] $mountPoints
*/
public function registerMounts(IUser $user, array $mountPoints) {
$this->mountCache->registerMounts($user, $mountPoints);
}
/**
* Get the mount cache which can be used to search for mounts without setting up the filesystem
*
* @return IUserMountCache
*/
public function getMountCache() {
return $this->mountCache;
}
}
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