56 lines
1.7 KiB
Python
56 lines
1.7 KiB
Python
# Copyright 2017 Google Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Context managers for patching libraries for use in PAR files."""
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import os
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import pkgutil
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import shutil
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import tempfile
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import httplib2
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def _monkey_patch_httplib2(extract_dir):
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"""Patch things so that httplib2 works properly in a PAR.
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Manually extract certificates to file to make OpenSSL happy and avoid error:
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ssl.SSLError: [Errno 185090050] _ssl.c:344: error:0B084002:x509 ...
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Args:
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extract_dir: the directory into which we extract the necessary files.
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"""
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if os.path.isfile(httplib2.CA_CERTS):
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# Not inside of a PAR file, so don't bother.
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return
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cacerts_contents = pkgutil.get_data('httplib2', 'cacerts.txt')
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cacerts_filename = os.path.join(extract_dir, 'cacerts.txt')
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with open(cacerts_filename, 'wb') as f:
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f.write(cacerts_contents)
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httplib2.CA_CERTS = cacerts_filename
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class Httplib2(object):
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def __init__(self):
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self._tmpdir = tempfile.mkdtemp()
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# __enter__ and __exit__ allow use as a context manager.
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def __enter__(self):
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_monkey_patch_httplib2(self._tmpdir)
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return self
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def __exit__(self, unused_type, unused_value, unused_traceback):
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shutil.rmtree(self._tmpdir)
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