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# Copyright 2013 IBM Corp.
#
# 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.
def mask_value(value, s_percent=0.125):
"""Obfuscate a given string to show only a percentage of leading
and trailing characters.
:param s_percent: The percentage (in decimal) of characters to replace
"""
if isinstance(value, str):
visible = (32 if int(round(len(value) * s_percent)) > 32
else int(round(len(value) * s_percent)))
return value[:visible] + " xxxxxxxx " + value[-visible:]
return value
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