From 0dd17697bb51c8d71dc498fd48db534a9fa957d3 Mon Sep 17 00:00:00 2001
From: Likitha Shetty <likitha.shetty@citrix.com>
Date: Tue, 7 Aug 2012 14:14:39 +0530
Subject: [PATCH] CS-14796. deployVirtualMachine api, added a check to see if
 the userdata provided is base64 encoded. Reviewed by: Prachi

---
 server/src/com/cloud/vm/UserVmManagerImpl.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/server/src/com/cloud/vm/UserVmManagerImpl.java b/server/src/com/cloud/vm/UserVmManagerImpl.java
index 377ced9ae0f..4e78b1e3f52 100755
--- a/server/src/com/cloud/vm/UserVmManagerImpl.java
+++ b/server/src/com/cloud/vm/UserVmManagerImpl.java
@@ -2549,6 +2549,9 @@ public class UserVmManagerImpl implements UserVmManager, UserVmService, Manager
     private void validateUserData(String userData) {
         byte[] decodedUserData = null;
         if (userData != null) {
+            if ( !userData.matches("^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{4}|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)$")) {
+                throw new InvalidParameterValueException("User data is not base64 encoded", null);
+            }
             if (userData.length() >= 2 * MAX_USER_DATA_LENGTH_BYTES) {
                 throw new InvalidParameterValueException("User data is too long", null);
             }