check for js engine before running group SERVER-2786

1 files changed, 5 insertions, 0 deletions

diff --git a/db/commands/group.cpp b/db/commands/group.cpp
index 0cc6ab314b1..422c35588b7 100644
--- a/db/commands/group.cpp
+++ b/db/commands/group.cpp
@@ -139,6 +139,11 @@ namespace mongo {
 
         bool run(const string& dbname, BSONObj& jsobj, string& errmsg, BSONObjBuilder& result, bool fromRepl ) {
 
+            if ( !globalScriptEngine ) {
+                errmsg = "server-side JavaScript execution is disabled";
+                return false;
+            }
+            
             /* db.$cmd.findOne( { group : <p> } ) */
             const BSONObj& p = jsobj.firstElement().embeddedObjectUserCheck();