| # Copyright 2016 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Helper functions to manage errors returned by Google Compute APIs.""" |
| |
| import json |
| |
| |
| # Error reason returned by GetErrorReason() when a resource is not found. |
| REASON_NOT_FOUND = 'notFound' |
| |
| |
| def GetErrorContent(error): |
| """Returns the contents of an error returned by Google Compute APIs as a |
| dictionary or None. |
| """ |
| if not error.resp.get('content-type', '').startswith('application/json'): |
| return None |
| return json.loads(error.content) |
| |
| |
| def GetErrorReason(error_content): |
| """Returns the error reason as a string.""" |
| if not error_content: |
| return None |
| if (not error_content.get('error') or |
| not error_content['error'].get('errors')): |
| return None |
| error_list = error_content['error']['errors'] |
| if not error_list: |
| return None |
| return error_list[0].get('reason') |
