Guzzle4 support

src/HttpSignatures/GuzzleHttp/Message.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace HttpSignatures\GuzzleHttp;
+
+use GuzzleHttp\Message\RequestInterface;
+
+/**
+ * Class RequestMessage
+ *
+ * wrapper around the Guzzle Request instance to have a consistent API for the HttpSignatures classes to consume
+ *
+ * @package HttpSignatures\Guzzle
+ */
+class Message
+{
+    /**
+     * @var RequestInterface
+     */
+    private $request;
+
+    /**
+     * @var MessageHeaders
+     */
+    public $headers;
+
+    public function __construct(RequestInterface $request)
+    {
+        $this->request = $request;
+        $this->headers = new MessageHeaders($request);
+    }
+
+    public function getQueryString()
+    {
+        $qs = $this->request->getQuery();
+        return $qs->count() ? $qs : null;
+    }
+
+    public function getMethod()
+    {
+        return $this->request->getMethod();
+    }
+
+    public function getPathInfo()
+    {
+        return $this->request->getPath();
+    }
+}