Core Improvements: Next Round #79 #80

libraries/Gelato/Http/Request.php

@@ -0,0 +1,153 @@
+<?php
+
+/**
+ * Gelato Library
+ *
+ * This source file is part of the Gelato Library. More information,
+ * documentation and tutorials can be found at http://gelato.monstra.org
+ *
+ * @package     Gelato
+ *
+ * @author      Romanenko Sergey / Awilum
+ * @copyright   (c) 2013 Romanenko Sergey / Awilum
+ * @since       1.0.0
+ */
+
+class Request
+{
+    /**
+     * Protected constructor since this is a static class.
+     *
+     * @access  protected
+     */
+    protected function __construct()
+    {
+        // Nothing here
+    }
+
+    /**
+     * Redirects the browser to a page specified by the $url argument.
+     *
+     *  <code>
+     *		Request::redirect('test');
+     *  </code>
+     *
+     * @param string  $url    The URL
+     * @param integer $status Status
+     * @param integer $delay  Delay
+     */
+    public static function redirect($url, $status = 302, $delay = null)
+    {
+        // Redefine vars
+        $url 	= (string) $url;
+        $status = (int) $status;
+
+        // Status codes
+        $messages = array();
+        $messages[301] = '301 Moved Permanently';
+        $messages[302] = '302 Found';
+
+        // Is Headers sent ?
+        if (headers_sent()) {
+
+            echo "<script>document.location.href='" . $url . "';</script>\n";
+
+        } else {
+
+            // Redirect headers
+            Request::setHeaders('HTTP/1.1 ' . $status . ' ' . Arr::get($messages, $status, 302));
+
+            // Delay execution
+            if ($delay !== null) sleep((int) $delay);
+
+            // Redirect
+            Request::setHeaders("Location: $url");
+
+            // Shutdown request
+            Request::shutdown();
+
+        }
+
+    }
+
+    /**
+     * Set one or multiple headers.
+     *
+     *  <code>
+     *		Request::setHeaders('Location: http://site.com/');
+     *  </code>
+     *
+     * @param mixed $headers String or array with headers to send.
+     */
+    public static function setHeaders($headers)
+    {
+        // Loop elements
+        foreach ((array) $headers as $header) {
+
+            // Set header
+            header((string) $header);
+
+        }
+
+    }
+
+    /**
+     * Get
+     *
+     *  <code>
+     *		$action = Request::get('action');
+     *  </code>
+     *
+     * @param string $key Key
+     * @param mixed
+     */
+    public static function get($key)
+    {
+        return Arr::get($_GET, $key);
+    }
+
+    /**
+     * Post
+     *
+     *  <code>
+     *		$login = Request::post('login');
+     *  </code>
+     *
+     * @param string $key Key
+     * @param mixed
+     */
+    public static function post($key)
+    {
+        return Arr::get($_POST, $key);
+    }
+
+    /**
+     * Returns whether this is an ajax request or not
+     *
+     *  <code>
+     *		if (Request::isAjax()) {
+     *			// do something...
+     *		}
+     *  </code>
+     *
+     * @return boolean
+     */
+    public static function isAjax()
+    {
+        return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] === 'XMLHttpRequest';
+    }
+
+    /**
+     * Terminate request
+     *
+     *  <code>
+     *		Request::shutdown();
+     *  </code>
+     *
+     */
+    public static function shutdown()
+    {
+        exit(0);
+    }
+
+}