From 6e6092596b9cb11fb019071b805caff88afedf06 Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien.potencier@gmail.com>
Date: Wed, 19 May 2010 11:25:07 +0200
Subject: [PATCH] [HttpKernel] added a method to retrieved the ETags from the
 IF_NONE_MATCH header in a Request

---
 src/Symfony/Components/HttpKernel/Request.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Symfony/Components/HttpKernel/Request.php b/src/Symfony/Components/HttpKernel/Request.php
index 178df2b35e..e4179e6bd1 100644
--- a/src/Symfony/Components/HttpKernel/Request.php
+++ b/src/Symfony/Components/HttpKernel/Request.php
@@ -460,6 +460,11 @@ class Request
         return in_array(strtolower($this->getMethod()), array('get', 'head'));
     }
 
+    public function getETags()
+    {
+        return preg_split('/\s*,\s*/', $this->headers->get('if_none_match'));
+    }
+
     public function isNoCache()
     {
         return $this->headers->getCacheControl()->isNoCache() || 'no-cache' == $this->headers->get('Pragma');