1 files changed, 62 insertions, 0 deletions
diff --git a/assets/php/vendor/react/dns/src/Protocol/BinaryDumper.php b/assets/php/vendor/react/dns/src/Protocol/BinaryDumper.php
new file mode 100644
index 0000000..35d6ae6
--- /dev/null
+++ b/assets/php/vendor/react/dns/src/Protocol/BinaryDumper.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace React\Dns\Protocol;
+
+use React\Dns\Model\Message;
+use React\Dns\Model\HeaderBag;
+
+class BinaryDumper
+{
+    public function toBinary(Message $message)
+    {
+        $data = '';
+
+        $data .= $this->headerToBinary($message->header);
+        $data .= $this->questionToBinary($message->questions);
+
+        return $data;
+    }
+
+    private function headerToBinary(HeaderBag $header)
+    {
+        $data = '';
+
+        $data .= pack('n', $header->get('id'));
+
+        $flags = 0x00;
+        $flags = ($flags << 1) | $header->get('qr');
+        $flags = ($flags << 4) | $header->get('opcode');
+        $flags = ($flags << 1) | $header->get('aa');
+        $flags = ($flags << 1) | $header->get('tc');
+        $flags = ($flags << 1) | $header->get('rd');
+        $flags = ($flags << 1) | $header->get('ra');
+        $flags = ($flags << 3) | $header->get('z');
+        $flags = ($flags << 4) | $header->get('rcode');
+
+        $data .= pack('n', $flags);
+
+        $data .= pack('n', $header->get('qdCount'));
+        $data .= pack('n', $header->get('anCount'));
+        $data .= pack('n', $header->get('nsCount'));
+        $data .= pack('n', $header->get('arCount'));
+
+        return $data;
+    }
+
+    private function questionToBinary(array $questions)
+    {
+        $data = '';
+
+        foreach ($questions as $question) {
+            $labels = explode('.', $question['name']);
+            foreach ($labels as $label) {
+                $data .= chr(strlen($label)).$label;
+            }
+            $data .= "\x00";
+
+            $data .= pack('n*', $question['type'], $question['class']);
+        }
+
+        return $data;
+    }
+}