blob: 9fffc9c6f547050c7a42354c7c58cdb8ce029184 [file] [log] [blame]
# pylint: disable=W0212
# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# Keys that may not be logged (in VPDs or device data).
import copy
def FilterDict(data):
"""Redacts values of any keys in BLACKLIST_KEYS.
If data is a list or a set, filter all its elements.
If data is a dict and some keys in data match BLACKLIST_KEYS,
filter the values. For other values that is dict, set, or list,
recursively filter them.
If data is not a list nor a set nor a dict, just return data.
Example: data = {'BLACK1': '1',
'WHITE1': {'BLACK2': 2}}
FilterDict(data) = {'BLACK1': <redacted 1 chars>,
'WHITE1': {'BLACK2': <redacted type int>}
data: A data to redact.
ret = copy.deepcopy(data)
if isinstance(data, list) or isinstance(data, set):
ret = [FilterDict(x) for x in data]
elif isinstance(data, dict):
for k, v in ret.iteritems():
if v is None:
if str(k) in BLACKLIST_KEYS:
if isinstance(v, str) or isinstance(v, unicode):
ret[k] = '<redacted %d chars>' % len(v)
ret[k] = '<redacted type %s>' % v.__class__.__name__
elif (isinstance(v, dict) or isinstance(v, list) or
isinstance(v, set)):
ret[k] = FilterDict(v)
return ret