72 lines
2.3 KiB
PHP
Executable File
72 lines
2.3 KiB
PHP
Executable File
<?php
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use React\Dns\Model\Message;
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use React\Dns\Model\Record;
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use React\Dns\Query\Query;
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use React\Dns\Query\UdpTransportExecutor;
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use React\EventLoop\Factory;
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require __DIR__ . '/../vendor/autoload.php';
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$loop = Factory::create();
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$executor = new UdpTransportExecutor($loop);
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$name = isset($argv[1]) ? $argv[1] : 'google.com';
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$any = new Query($name, Message::TYPE_ANY, Message::CLASS_IN);
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$executor->query('8.8.8.8:53', $any)->then(function (Message $message) {
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foreach ($message->answers as $answer) {
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/* @var $answer Record */
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$data = $answer->data;
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switch ($answer->type) {
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case Message::TYPE_A:
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$type = 'A';
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break;
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case Message::TYPE_AAAA:
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$type = 'AAAA';
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break;
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case Message::TYPE_NS:
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$type = 'NS';
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break;
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case Message::TYPE_PTR:
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$type = 'PTR';
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break;
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case Message::TYPE_CNAME:
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$type = 'CNAME';
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break;
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case Message::TYPE_TXT:
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// TXT records can contain a list of (binary) strings for each record.
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// here, we assume this is printable ASCII and simply concatenate output
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$type = 'TXT';
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$data = implode('', $data);
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break;
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case Message::TYPE_MX:
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// MX records contain "priority" and "target", only dump its values here
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$type = 'MX';
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$data = implode(' ', $data);
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break;
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case Message::TYPE_SRV:
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// SRV records contains priority, weight, port and target, dump structure here
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$type = 'SRV';
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$data = json_encode($data);
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break;
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case Message::TYPE_SOA:
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// SOA records contain structured data, dump structure here
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$type = 'SOA';
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$data = json_encode($data);
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break;
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default:
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// unknown type uses HEX format
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$type = 'Type ' . $answer->type;
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$data = wordwrap(strtoupper(bin2hex($data)), 2, ' ', true);
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}
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echo $type . ': ' . $data . PHP_EOL;
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}
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}, 'printf');
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$loop->run();
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