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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\Http\Client;
use OCP\ICache;
use OCP\ICacheFactory;
class NegativeDnsCache {
/** @var ICache */
private $cache;
public function __construct(ICacheFactory $memcache) {
$this->cache = $memcache->createLocal('NegativeDnsCache');
}
private function createCacheKey(string $domain, int $type) : string {
return $domain . '-' . (string)$type;
}
public function setNegativeCacheForDnsType(string $domain, int $type, int $ttl) : void {
$this->cache->set($this->createCacheKey($domain, $type), 'true', $ttl);
}
public function isNegativeCached(string $domain, int $type) : bool {
return (bool)$this->cache->hasKey($this->createCacheKey($domain, $type));
}
}
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