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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Joas Schilling <coding@schilljs.com>
* @author Morris Jobke <hey@morrisjobke.de>
*
* @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\Core\Command\Config;
use OCP\IConfig;
use Stecman\Component\Symfony\Console\BashCompletion\Completion;
use Stecman\Component\Symfony\Console\BashCompletion\Completion\CompletionAwareInterface;
use Stecman\Component\Symfony\Console\BashCompletion\Completion\ShellPathCompletion;
use Stecman\Component\Symfony\Console\BashCompletion\CompletionContext;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
class Import extends Command implements CompletionAwareInterface {
protected $validRootKeys = ['system', 'apps'];
/** @var IConfig */
protected $config;
/**
* @param IConfig $config
*/
public function __construct(IConfig $config) {
parent::__construct();
$this->config = $config;
}
protected function configure() {
$this
->setName('config:import')
->setDescription('Import a list of configs')
->addArgument(
'file',
InputArgument::OPTIONAL,
'File with the json array to import'
)
;
}
protected function execute(InputInterface $input, OutputInterface $output) {
$importFile = $input->getArgument('file');
if ($importFile !== null) {
$content = $this->getArrayFromFile($importFile);
} else {
$content = $this->getArrayFromStdin();
}
try {
$configs = $this->validateFileContent($content);
} catch (\UnexpectedValueException $e) {
$output->writeln('<error>' . $e->getMessage(). '</error>');
return;
}
if (!empty($configs['system'])) {
$this->config->setSystemValues($configs['system']);
}
if (!empty($configs['apps'])) {
foreach ($configs['apps'] as $app => $appConfigs) {
foreach ($appConfigs as $key => $value) {
if ($value === null) {
$this->config->deleteAppValue($app, $key);
} else {
$this->config->setAppValue($app, $key, $value);
}
}
}
}
$output->writeln('<info>Config successfully imported from: ' . $importFile . '</info>');
}
/**
* Get the content from stdin ("config:import < file.json")
*
* @return string
*/
protected function getArrayFromStdin() {
// Read from stdin. stream_set_blocking is used to prevent blocking
// when nothing is passed via stdin.
stream_set_blocking(STDIN, 0);
$content = file_get_contents('php://stdin');
stream_set_blocking(STDIN, 1);
return $content;
}
/**
* Get the content of the specified file ("config:import file.json")
*
* @param string $importFile
* @return string
*/
protected function getArrayFromFile($importFile) {
return file_get_contents($importFile);
}
/**
* @param string $content
* @return array
* @throws \UnexpectedValueException when the array is invalid
*/
protected function validateFileContent($content) {
$decodedContent = json_decode($content, true);
if (!is_array($decodedContent) || empty($decodedContent)) {
throw new \UnexpectedValueException('The file must contain a valid json array');
}
$this->validateArray($decodedContent);
return $decodedContent;
}
/**
* Validates that the array only contains `system` and `apps`
*
* @param array $array
*/
protected function validateArray($array) {
$arrayKeys = array_keys($array);
$additionalKeys = array_diff($arrayKeys, $this->validRootKeys);
$commonKeys = array_intersect($arrayKeys, $this->validRootKeys);
if (!empty($additionalKeys)) {
throw new \UnexpectedValueException('Found invalid entries in root: ' . implode(', ', $additionalKeys));
}
if (empty($commonKeys)) {
throw new \UnexpectedValueException('At least one key of the following is expected: ' . implode(', ', $this->validRootKeys));
}
if (isset($array['system'])) {
if (is_array($array['system'])) {
foreach ($array['system'] as $name => $value) {
$this->checkTypeRecursively($value, $name);
}
} else {
throw new \UnexpectedValueException('The system config array is not an array');
}
}
if (isset($array['apps'])) {
if (is_array($array['apps'])) {
$this->validateAppsArray($array['apps']);
} else {
throw new \UnexpectedValueException('The apps config array is not an array');
}
}
}
/**
* @param mixed $configValue
* @param string $configName
*/
protected function checkTypeRecursively($configValue, $configName) {
if (!is_array($configValue) && !is_bool($configValue) && !is_int($configValue) && !is_string($configValue) && !is_null($configValue)) {
throw new \UnexpectedValueException('Invalid system config value for "' . $configName . '". Only arrays, bools, integers, strings and null (delete) are allowed.');
}
if (is_array($configValue)) {
foreach ($configValue as $key => $value) {
$this->checkTypeRecursively($value, $configName);
}
}
}
/**
* Validates that app configs are only integers and strings
*
* @param array $array
*/
protected function validateAppsArray($array) {
foreach ($array as $app => $configs) {
foreach ($configs as $name => $value) {
if (!is_int($value) && !is_string($value) && !is_null($value)) {
throw new \UnexpectedValueException('Invalid app config value for "' . $app . '":"' . $name . '". Only integers, strings and null (delete) are allowed.');
}
}
}
}
/**
* @param string $optionName
* @param CompletionContext $context
* @return string[]
*/
public function completeOptionValues($optionName, CompletionContext $context) {
return [];
}
/**
* @param string $argumentName
* @param CompletionContext $context
* @return string[]
*/
public function completeArgumentValues($argumentName, CompletionContext $context) {
if ($argumentName === 'file') {
$helper = new ShellPathCompletion(
$this->getName(),
'file',
Completion::TYPE_ARGUMENT
);
return $helper->run();
}
return [];
}
}
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