blob: 782713bf5ad0e49f12f89fbf2b738993751e101b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
# Copyright (c) 2013 NEC Corporation
# 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 logging
import webob.dec
import webob.exc
from oslo_middleware._i18n import _LE
from oslo_middleware import base
LOG = logging.getLogger(__name__)
class CatchErrors(base.ConfigurableMiddleware):
"""Middleware that provides high-level error handling.
It catches all exceptions from subsequent applications in WSGI pipeline
to hide internal errors from API response.
"""
@webob.dec.wsgify
def __call__(self, req):
try:
response = req.get_response(self.application)
except Exception:
if hasattr(req, 'environ') and 'HTTP_X_AUTH_TOKEN' in req.environ:
req.environ['HTTP_X_AUTH_TOKEN'] = '*****'
LOG.exception(_LE('An error occurred during '
'processing the request: %s'), req)
response = webob.exc.HTTPInternalServerError()
return response
|
