Moved request class to util folder

src/OAuth2/Util/Request.php

@@ -0,0 +1,94 @@
+<?php
+
+namespace OAuth2\Util;
+
+use OutOfBoundsException;
+use InvalidMethodCallException;
+use InvalidArgumentException;
+
+class Request implements RequestInterface
+{
+    protected $get = array();
+    protected $post = array();
+    protected $cookies = array();
+    protected $files = array();
+    protected $server = array();
+    protected $headers = array();
+
+    public static function buildFromGlobals()
+    {
+        return new static($_GET, $_POST, $_COOKIE, $_FILES, $_SERVER);
+    }
+
+    public function __construct(array $get = array(), array $post = array(), array $cookies = array(), array $files = array(), array $server = array(), $headers = array())
+    {
+        $this->get = $get;
+        $this->post = $post;
+        $this->cookies = $cookies;
+        $this->files = $files;
+        $this->server = $server;
+
+        if (empty($headers)) {
+            $this->headers = $this->readHeaders();
+        }
+    }
+
+    public function get($index = null, $default = null)
+    {
+        return $this->getPropertyValue('get', $index, $default);
+    }
+
+    public function post($index = null, $default = null)
+    {
+        return $this->getPropertyValue('post', $index, $default);
+    }
+
+    public function file($index = null, $default = null)
+    {
+        return $this->getPropertyValue('files', $index, $default);
+    }
+
+    public function cookie($index = null, $default = null)
+    {
+        return $this->getPropertyValue('cookies', $index, $default);
+    }
+
+    public function server($index = null, $default = null)
+    {
+        return $this->getPropertyValue('server', $index, $default);
+    }
+
+    public function header($index = null, $default = null)
+    {
+        return $this->getPropertyValue('headers', $index, $default);
+    }
+
+    protected function readHeaders()
+    {
+        $headers = array();
+        foreach ($this->server() as $name => $value) {
+            if (substr($name, 0, 5) === 'HTTP_') {
+                $name = str_replace(' ', '-', strtolower(str_replace('_', ' ', substr($name, 5))));
+                $headers[$name] = $value;
+            }
+        }
+
+        return $headers;
+   }
+
+    protected function getPropertyValue($property, $index = null, $default = null)
+    {
+        if ( ! isset($this->{$property})) {
+            throw new InvalidArgumentException("Property '$property' does not exist.");
+        }
+        if (is_null($index)) {
+            return $this->{$property};
+        }
+
+        if ( ! array_key_exists($index, $this->{$property})) {
+            return $default;
+        }
+
+        return $this->{$property}[$index];
+    }
+}