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#The MIT License (MIT)
#Copyright (c) 2014 Microsoft Corporation
#Permission is hereby granted, free of charge, to any person obtaining a copy
#of this software and associated documentation files (the "Software"), to deal
#in the Software without restriction, including without limitation the rights
#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
#copies of the Software, and to permit persons to whom the Software is
#furnished to do so, subject to the following conditions:
#The above copyright notice and this permission notice shall be included in all
#copies or substantial portions of the Software.
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
#SOFTWARE.
"""Internal Helper functions in the Azure Cosmos database service.
"""
import platform
import re as re
import azure.cosmos.http_constants as http_constants
def _get_user_agent():
os_name = _safe_user_agent_header(platform.system())
os_version = _safe_user_agent_header(platform.release())
python_version = _safe_user_agent_header(platform.python_version())
user_agent = "{}/{} Python/{} {}/{}".format(os_name, os_version,
python_version,
http_constants.Versions.SDKName, http_constants.Versions.SDKVersion)
return user_agent
def _safe_user_agent_header(s):
if s is None:
s = "unknown"
# remove all white spaces
s = re.sub(r"\s+", '', s)
if not s:
s = "unknown"
return s
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