|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types=1); |
|
4
|
|
|
|
|
5
|
|
|
/** |
|
6
|
|
|
* @copyright Copyright (c) 2021, Lukas Reschke <[email protected]> |
|
7
|
|
|
* |
|
8
|
|
|
* @author Lukas Reschke <[email protected]> |
|
9
|
|
|
* |
|
10
|
|
|
* @license GNU AGPL version 3 or any later version |
|
11
|
|
|
* |
|
12
|
|
|
* This program is free software: you can redistribute it and/or modify |
|
13
|
|
|
* it under the terms of the GNU Affero General Public License as |
|
14
|
|
|
* published by the Free Software Foundation, either version 3 of the |
|
15
|
|
|
* License, or (at your option) any later version. |
|
16
|
|
|
* |
|
17
|
|
|
* This program is distributed in the hope that it will be useful, |
|
18
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
19
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
20
|
|
|
* GNU Affero General Public License for more details. |
|
21
|
|
|
* |
|
22
|
|
|
* You should have received a copy of the GNU Affero General Public License |
|
23
|
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
24
|
|
|
* |
|
25
|
|
|
*/ |
|
26
|
|
|
|
|
27
|
|
|
namespace OC\Http\Client; |
|
28
|
|
|
|
|
29
|
|
|
use OCP\ICache; |
|
30
|
|
|
use OCP\ICacheFactory; |
|
31
|
|
|
|
|
32
|
|
|
class NegativeDnsCache { |
|
33
|
|
|
/** @var ICache */ |
|
34
|
|
|
private $cache; |
|
35
|
|
|
|
|
36
|
|
|
public function __construct(ICacheFactory $memcache) { |
|
37
|
|
|
$this->cache = $memcache->createLocal('NegativeDnsCache'); |
|
38
|
|
|
} |
|
39
|
|
|
|
|
40
|
|
|
private function createCacheKey(string $domain, int $type) : string { |
|
41
|
|
|
return $domain . "-" . (string)$type; |
|
42
|
|
|
} |
|
43
|
|
|
|
|
44
|
|
|
public function setNegativeCacheForDnsType(string $domain, int $type, int $ttl) : void { |
|
45
|
|
|
$this->cache->set($this->createCacheKey($domain, $type), "true", $ttl); |
|
46
|
|
|
} |
|
47
|
|
|
|
|
48
|
|
|
public function isNegativeCached(string $domain, int $type) : bool { |
|
49
|
|
|
return $this->cache->hasKey($this->createCacheKey($domain, $type)); |
|
50
|
|
|
} |
|
51
|
|
|
} |
|
52
|
|
|
|
nextcloud /
server
