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ghost 2023-12-15 18:14:45 +02:00
parent 646ed21a84
commit df3342fc4b
4 changed files with 103 additions and 1 deletions
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src/Dig.php Normal file
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<?php
declare(strict_types=1);
namespace Yggverse\Dns;
class Dig
{
private static function _records(): array
{
return
[
'A' => function(string $value): bool {return false !== filter_var($value, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);},
'AAAA' => function(string $value): bool {return false !== filter_var($value, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6);},
// ...
];
}
public static function isHostName(string $hostname): bool
{
return false !== filter_var($hostname, FILTER_VALIDATE_DOMAIN, FILTER_FLAG_HOSTNAME);
}
public static function isRecord(string $record): bool
{
return isset(self::_records()[$record]);
}
public static function isRecordValue(string $record, string $value): bool
{
return isset(self::_records()[$record]) && self::_records()[$record]($value);
}
public static function records(string $hostname, array $records, array &$result = [], array &$error = []): array
{
if (self::isHostName($hostname))
{
foreach ($records as $record)
{
if (self::isRecord($record))
{
if ($values = exec(sprintf('dig %s %s +short', $record, $hostname)))
{
foreach (explode(PHP_EOL, $values) as $value)
{
if (self::isRecordValue($record, $value))
{
$result[$record][] = $value;
}
}
}
}
}
}
return $result;
}
}