nextcloud/apps/files_external/lib/Command/Backends.php

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<?php
/**
* @author Robin Appelman <icewind@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\Command;
use OC\Core\Command\Base;
use OCA\Files_External\Lib\Auth\AuthMechanism;
use OCA\Files_External\Lib\Backend\Backend;
use OCA\Files_External\Lib\DefinitionParameter;
use OCA\Files_External\Service\BackendService;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Helper\Table;
use Symfony\Component\Console\Helper\TableHelper;
use Symfony\Component\Console\Input\ArrayInput;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\Input;
use Symfony\Component\Console\Output\OutputInterface;
class Backends extends Base {
/** @var BackendService */
private $backendService;
function __construct(BackendService $backendService
) {
parent::__construct();
$this->backendService = $backendService;
}
protected function configure() {
$this
->setName('files_external:backends')
->setDescription('Show available authentication and storage backends')
->addArgument(
'type',
InputArgument::OPTIONAL,
'only show backends of a certain type. Possible values are "authentication" or "storage"'
)->addArgument(
'backend',
InputArgument::OPTIONAL,
'only show information of a specific backend'
);
parent::configure();
}
protected function execute(InputInterface $input, OutputInterface $output) {
$authBackends = $this->backendService->getAuthMechanisms();
$storageBackends = $this->backendService->getBackends();
$data = [
'authentication' => array_map([$this, 'serializeAuthBackend'], $authBackends),
'storage' => array_map([$this, 'serializeAuthBackend'], $storageBackends)
];
$type = $input->getArgument('type');
$backend = $input->getArgument('backend');
if ($type) {
if (!isset($data[$type])) {
$output->writeln('<error>Invalid type "' . $type . '". Possible values are "authentication" or "storage"</error>');
return 1;
}
$data = $data[$type];
if ($backend) {
if (!isset($data[$backend])) {
$output->writeln('<error>Unknown backend "' . $backend . '" of type "' . $type . '"</error>');
return 1;
}
$data = $data[$backend];
}
}
$this->writeArrayInOutputFormat($input, $output, $data);
}
private function serializeAuthBackend(\JsonSerializable $backend) {
$data = $backend->jsonSerialize();
$result = [
'name' => $data['name'],
'identifier' => $data['identifier'],
'configuration' => $this->formatConfiguration($data['configuration'])
];
if ($backend instanceof Backend) {
$result['storage_class'] = $backend->getStorageClass();
$authBackends = $this->backendService->getAuthMechanismsByScheme(array_keys($backend->getAuthSchemes()));
$result['supported_authentication_backends'] = array_keys($authBackends);
$authConfig = array_map(function (AuthMechanism $auth) {
return $this->serializeAuthBackend($auth)['configuration'];
}, $authBackends);
$result['authentication_configuration'] = array_combine(array_keys($authBackends), $authConfig);
}
return $result;
}
/**
* @param DefinitionParameter[] $parameters
* @return string[]
*/
private function formatConfiguration(array $parameters) {
$configuration = array_filter($parameters, function (DefinitionParameter $parameter) {
return $parameter->getType() !== DefinitionParameter::VALUE_HIDDEN;
});
return array_map(function (DefinitionParameter $parameter) {
return $parameter->getTypeName();
}, $configuration);
}
}