1 files changed, 35 insertions, 0 deletions
diff --git a/cyborg_enhancement/mitaka_version/cyborg/cyborg/api/controllers/v1/utils.py b/cyborg_enhancement/mitaka_version/cyborg/cyborg/api/controllers/v1/utils.py
new file mode 100644
index 0000000..6c88d3e
--- /dev/null
+++ b/cyborg_enhancement/mitaka_version/cyborg/cyborg/api/controllers/v1/utils.py
@@ -0,0 +1,35 @@
+# Copyright 2017 Huawei Technologies Co.,LTD.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import jsonpatch
+import wsme
+
+
+from cyborg.common.i18n import _
+
+
+JSONPATCH_EXCEPTIONS = (jsonpatch.JsonPatchException,
+                        jsonpatch.JsonPointerException,
+                        KeyError)
+
+
+def apply_jsonpatch(doc, patch):
+    for p in patch:
+        if p['op'] == 'add' and p['path'].count('/') == 1:
+            if p['path'].lstrip('/') not in doc:
+                msg = _('Adding a new attribute (%s) to the root of '
+                        ' the resource is not allowed')
+                raise wsme.exc.ClientSideError(msg % p['path'])
+    return jsonpatch.apply_patch(doc, jsonpatch.JsonPatch(patch))
+\ No newline at end of file