persist_data: don't allow non-string keys/values

Signed-off-by: Chris Larson <chris_larson@mentor.com>

diff --git a/lib/bb/persist_data.py b/lib/bb/persist_data.py
index baade7c4f14d74994c558f4c56b8dffcb2227a72..aa2ede4b937c79ec763fc915d29ed715bfe91b30 100644 (file)
--- a/lib/bb/persist_data.py
+++ b/lib/bb/persist_data.py
@@ -68,6 +68,11 @@ class SQLTable(collections.MutableMapping):
         self._execute("DELETE from %s where key=?;" % self.table, [key])
 
     def __setitem__(self, key, value):
+        if not isinstance(key, basestring):
+            raise TypeError('Only string keys are supported')
+        elif not isinstance(value, basestring):
+            raise TypeError('Only string values are supported')
+
         data = self._execute("SELECT * from %s where key=?;" %
                                    self.table, [key])
         exists = len(list(data))