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<?php
declare(strict_types = 1);
/**
* @copyright 2022 Carl Schwan <carl@carlschwan.eu>
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC;
use OCP\ICache;
use OCP\ICacheFactory;
use OCP\IBinaryFinder;
use Symfony\Component\Process\ExecutableFinder;
/**
* Service that find the binary path for a program
*/
class BinaryFinder implements IBinaryFinder {
private ICache $cache;
public function __construct(ICacheFactory $cacheFactory) {
$this->cache = $cacheFactory->createLocal('findBinaryPath');
}
/**
* Try to find a program
*
* @return false|string
*/
public function findBinaryPath(string $program) {
$result = $this->cache->get($program);
if ($result !== null) {
return $result;
}
$result = false;
if (\OCP\Util::isFunctionEnabled('exec')) {
$exeSniffer = new ExecutableFinder();
// Returns null if nothing is found
$result = $exeSniffer->find($program, null, [
'/usr/local/sbin',
'/usr/local/bin',
'/usr/sbin',
'/usr/bin',
'/sbin',
'/bin',
'/opt/bin',
]);
if ($result === null) {
$result = false;
}
}
// store the value for 5 minutes
$this->cache->set($program, $result, 300);
return $result;
}
}
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