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