From b79a5b61b83d28faf425a0b080fac7bbeb2d85bf Mon Sep 17 00:00:00 2001
From: Svein-Tore Griff With <s.t.g.with@gmail.com>
Date: Sun, 22 Mar 2015 12:42:07 +0100
Subject: [PATCH] uuid consists of lowercase letters

---
 h5p.classes.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/h5p.classes.php b/h5p.classes.php
index c4c703d..2fba0f2 100644
--- a/h5p.classes.php
+++ b/h5p.classes.php
@@ -2736,8 +2736,8 @@ class H5PContentValidator {
       $validkeys = array_merge($validkeys, $semantics->extraAttributes);
     }
     $this->filterParams($value, $validkeys);
-    if (isset($value->uuid) && ! preg_match('/^\{?[A-Z0-9]{8}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{12}\}?$/', $value->uuid)) {
-      unset($value->uuid); 
+    if (isset($value->uuid) && ! preg_match('/^\{?[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}\}?$/', $value->uuid)) {
+      unset($value->uuid);
     }
 
     // Find all dependencies for this library