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Diffstat (limited to 'apps/files_external/lib/Service/GlobalStoragesService.php')
| -rw-r--r-- | apps/files_external/lib/Service/GlobalStoragesService.php | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/apps/files_external/lib/Service/GlobalStoragesService.php b/apps/files_external/lib/Service/GlobalStoragesService.php new file mode 100644 index 00000000000..6032a827735 --- /dev/null +++ b/apps/files_external/lib/Service/GlobalStoragesService.php @@ -0,0 +1,165 @@ +<?php +/** + * @author Lukas Reschke <lukas@owncloud.com> + * @author Robin Appelman <icewind@owncloud.com> + * @author Robin McCorkell <robin@mccorkell.me.uk> + * @author Vincent Petry <pvince81@owncloud.com> + * + * @copyright Copyright (c) 2016, ownCloud, Inc. + * @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 OCA\Files_External\Service; + +use \OCP\IUserSession; +use \OC\Files\Filesystem; + +use \OCA\Files_external\Lib\StorageConfig; +use \OCA\Files_external\NotFoundException; + +/** + * Service class to manage global external storages + */ +class GlobalStoragesService extends StoragesService { + /** + * Triggers $signal for all applicable users of the given + * storage + * + * @param StorageConfig $storage storage data + * @param string $signal signal to trigger + */ + protected function triggerHooks(StorageConfig $storage, $signal) { + // FIXME: Use as expression in empty once PHP 5.4 support is dropped + $applicableUsers = $storage->getApplicableUsers(); + $applicableGroups = $storage->getApplicableGroups(); + if (empty($applicableUsers) && empty($applicableGroups)) { + // raise for user "all" + $this->triggerApplicableHooks( + $signal, + $storage->getMountPoint(), + \OC_Mount_Config::MOUNT_TYPE_USER, + ['all'] + ); + return; + } + + $this->triggerApplicableHooks( + $signal, + $storage->getMountPoint(), + \OC_Mount_Config::MOUNT_TYPE_USER, + $applicableUsers + ); + $this->triggerApplicableHooks( + $signal, + $storage->getMountPoint(), + \OC_Mount_Config::MOUNT_TYPE_GROUP, + $applicableGroups + ); + } + + /** + * Triggers signal_create_mount or signal_delete_mount to + * accommodate for additions/deletions in applicableUsers + * and applicableGroups fields. + * + * @param StorageConfig $oldStorage old storage config + * @param StorageConfig $newStorage new storage config + */ + protected function triggerChangeHooks(StorageConfig $oldStorage, StorageConfig $newStorage) { + // if mount point changed, it's like a deletion + creation + if ($oldStorage->getMountPoint() !== $newStorage->getMountPoint()) { + $this->triggerHooks($oldStorage, Filesystem::signal_delete_mount); + $this->triggerHooks($newStorage, Filesystem::signal_create_mount); + return; + } + + $userAdditions = array_diff($newStorage->getApplicableUsers(), $oldStorage->getApplicableUsers()); + $userDeletions = array_diff($oldStorage->getApplicableUsers(), $newStorage->getApplicableUsers()); + $groupAdditions = array_diff($newStorage->getApplicableGroups(), $oldStorage->getApplicableGroups()); + $groupDeletions = array_diff($oldStorage->getApplicableGroups(), $newStorage->getApplicableGroups()); + + // FIXME: Use as expression in empty once PHP 5.4 support is dropped + // if no applicable were set, raise a signal for "all" + $oldApplicableUsers = $oldStorage->getApplicableUsers(); + $oldApplicableGroups = $oldStorage->getApplicableGroups(); + if (empty($oldApplicableUsers) && empty($oldApplicableGroups)) { + $this->triggerApplicableHooks( + Filesystem::signal_delete_mount, + $oldStorage->getMountPoint(), + \OC_Mount_Config::MOUNT_TYPE_USER, + ['all'] + ); + } + + // trigger delete for removed users + $this->triggerApplicableHooks( + Filesystem::signal_delete_mount, + $oldStorage->getMountPoint(), + \OC_Mount_Config::MOUNT_TYPE_USER, + $userDeletions + ); + + // trigger delete for removed groups + $this->triggerApplicableHooks( + Filesystem::signal_delete_mount, + $oldStorage->getMountPoint(), + \OC_Mount_Config::MOUNT_TYPE_GROUP, + $groupDeletions + ); + + // and now add the new users + $this->triggerApplicableHooks( + Filesystem::signal_create_mount, + $newStorage->getMountPoint(), + \OC_Mount_Config::MOUNT_TYPE_USER, + $userAdditions + ); + + // and now add the new groups + $this->triggerApplicableHooks( + Filesystem::signal_create_mount, + $newStorage->getMountPoint(), + \OC_Mount_Config::MOUNT_TYPE_GROUP, + $groupAdditions + ); + + // FIXME: Use as expression in empty once PHP 5.4 support is dropped + // if no applicable, raise a signal for "all" + $newApplicableUsers = $newStorage->getApplicableUsers(); + $newApplicableGroups = $newStorage->getApplicableGroups(); + if (empty($newApplicableUsers) && empty($newApplicableGroups)) { + $this->triggerApplicableHooks( + Filesystem::signal_create_mount, + $newStorage->getMountPoint(), + \OC_Mount_Config::MOUNT_TYPE_USER, + ['all'] + ); + } + } + + /** + * Get the visibility type for this controller, used in validation + * + * @return string BackendService::VISIBILITY_* constants + */ + public function getVisibilityType() { + return BackendService::VISIBILITY_ADMIN; + } + + protected function isApplicable(StorageConfig $config) { + return true; + } +} |