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<?php
/**
* Copyright (c) 2015 Vincent Petry <pvince81@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
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 {
/**
* Write the storages to the configuration.
*
* @param string $user user or null for global config
* @param array $storages map of storage id to storage config
*/
public function writeConfig($storages) {
// let the horror begin
$mountPoints = [];
foreach ($storages as $storageConfig) {
$mountPoint = $storageConfig->getMountPoint();
$oldBackendOptions = $storageConfig->getBackendOptions();
$storageConfig->setBackendOptions(
\OC_Mount_Config::encryptPasswords(
$oldBackendOptions
)
);
// system mount
$rootMountPoint = '/$user/files/' . ltrim($mountPoint, '/');
$applicableUsers = $storageConfig->getApplicableUsers();
$applicableGroups = $storageConfig->getApplicableGroups();
foreach ($applicableUsers as $applicable) {
$this->addMountPoint(
$mountPoints,
\OC_Mount_Config::MOUNT_TYPE_USER,
$applicable,
$rootMountPoint,
$storageConfig
);
}
foreach ($applicableGroups as $applicable) {
$this->addMountPoint(
$mountPoints,
\OC_Mount_Config::MOUNT_TYPE_GROUP,
$applicable,
$rootMountPoint,
$storageConfig
);
}
// if neither "applicableGroups" or "applicableUsers" were set, use "all" user
if (empty($applicableUsers) && empty($applicableGroups)) {
$this->addMountPoint(
$mountPoints,
\OC_Mount_Config::MOUNT_TYPE_USER,
'all',
$rootMountPoint,
$storageConfig
);
}
// restore old backend options where the password was not encrypted,
// because we don't want to change the state of the original object
$storageConfig->setBackendOptions($oldBackendOptions);
}
\OC_Mount_Config::writeData(null, $mountPoints);
}
/**
* 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) {
$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
* accomodate for additions/deletions in applicableUsers
* and applicableGroups fields.
*
* @param StorageConfig $oldStorage old storage data
* @param StorageConfig $newStorage new storage data
*/
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(), $newStorage->getApplicableGroups());
// if no applicable were set, raise a signal for "all"
if (empty($oldStorage->getApplicableUsers()) && empty($oldStorage->getApplicableGroups())) {
$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,
$groupAdditions
);
// if no applicable, raise a signal for "all"
if (empty($newStorage->getApplicableUsers()) && empty($newStorage->getApplicableGroups())) {
$this->triggerApplicableHooks(
Filesystem::signal_create_mount,
$newStorage->getMountPoint(),
\OC_Mount_Config::MOUNT_TYPE_USER,
['all']
);
}
}
}
|
