Use Response as response

Message/Http/Header.php

@@ -228,9 +228,9 @@ final class Header extends HeaderAbstract
      *
      * @since  1.0.0
      */
-    public function get(string $key) : array
+    public function get(string $key = null) : array
     {
-        return $this->header[\strtolower($key)] ?? [];
+        return $key === null ? $this->header : ($this->header[\strtolower($key)] ?? []);
     }
 
     /**

Message/Http/Rest.php

@@ -36,7 +36,7 @@ final class Rest
      *
      * @since  1.0.0
      */
-    public static function request(Request $request) : string
+    public static function request(Request $request) : Response
     {
         $curl = \curl_init();
 
@@ -45,7 +45,14 @@ final class Rest
         }
 
         \curl_setopt($curl, \CURLOPT_NOBODY, true);
-        \curl_setopt($curl, \CURLOPT_HEADER, false);
+
+        $headers = $request->getHeader()->get();
+        foreach ($headers as $key => $header) {
+            $headers[$key] = $key . ': ' . \implode('', $header);
+        }
+
+        curl_setopt($curl, \CURLOPT_HTTPHEADER, $headers);
+        \curl_setopt($curl, \CURLOPT_HEADER, true);
 
         switch ($request->getMethod()) {
             case RequestMethod::GET:
@@ -72,6 +79,27 @@ final class Rest
             \curl_setopt($curl, \CURLOPT_USERPWD, $request->getUri()->getUserInfo());
         }
 
+        $cHeaderString = '';
+        $response      = new Response();
+
+        curl_setopt($curl, \CURLOPT_HEADERFUNCTION,
+            function($curl, $header) use ($response, &$cHeaderString) {
+                $cHeaderString .= $header;
+
+                $length = \strlen($header);
+                $header = \explode(':', $header, 2);
+
+                if (\count($header) < 2) {
+                    return $length;
+                }
+
+                $name = \strtolower(\trim($header[0]));
+                $response->getHeader()->set($name, \trim($header[1]));
+
+                return $length;
+            }
+        );
+
         \curl_setopt($curl, \CURLOPT_URL, $request->__toString());
         \curl_setopt($curl, \CURLOPT_RETURNTRANSFER, 1);
 
@@ -79,6 +107,8 @@ final class Rest
 
         \curl_close($curl);
 
-        return \is_bool($result) ? '' : $result;
+        $response->set('', \substr($result, \strlen($cHeaderString)));
+
+        return $response;
     }
 }