sources/saml: validate SAMLResponse signature

passbook/sources/saml/exceptions.py

@@ -0,0 +1,9 @@
+"""passbook saml source exceptions"""
+
+
+class MissingSAMLResponse(Exception):
+    """Exception raised when request does not contain SAML Response."""
+
+
+class UnsupportedNameIDFormat(Exception):
+    """Exception raised when SAML Response contains NameID Format not supported."""