forked from mirror/pixelfed
29 lines
735 B
PHP
29 lines
735 B
PHP
|
<?php
|
||
|
|
|
||
|
|
namespace App\Services;
|
||
|
|
|
||
|
|
use Illuminate\Support\Facades\Cache;
|
||
|
|
use Illuminate\Support\Facades\Redis;
|
||
|
|
|
||
|
|
class DomainService
|
||
|
|
{
|
||
|
|
const CACHE_KEY = 'pf:services:domains:';
|
||
|
|
|
||
|
|
public static function hasValidDns($domain)
|
||
|
|
{
|
||
|
|
if(!$domain || !strlen($domain) || strpos($domain, '.') == -1) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(config('security.url.trusted_domains')) {
|
||
|
|
if(in_array($domain, explode(',', config('security.url.trusted_domains')))) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return Cache::remember(self::CACHE_KEY . 'valid-dns:' . $domain, 14400, function() use($domain) {
|
||
|
|
return count(dns_get_record($domain, DNS_A | DNS_AAAA)) > 0;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|