Catch SAML logout errors and display error view (#225)

Author: maxbes

djangosaml2/views.py

@@ -518,7 +518,11 @@ def do_logout_service(request, data, binding, config_loader_path=None, next_page
 
     if 'SAMLResponse' in data:  # we started the logout
         logger.debug('Receiving a logout response from the IdP')
-        response = client.parse_logout_request_response(data['SAMLResponse'], binding)
+        try:
+            response = client.parse_logout_request_response(data['SAMLResponse'], binding)
+        except StatusError as e:
+            response = None
+            logger.warn("Error logging out from remote provider: " + str(e))
         state.sync()
         return finish_logout(request, response, next_page=next_page)