3b3aeb65d7
Until now, code that depended on PyCrypto or OpenSSL was defined conditionally (e.g. indented) in `crypt.py`. Rather than grouping all these together, we factor out the library specific behavior into standalone modules (but make the modules private / protected). In addition, added a `_helpers.py` module with common behavior that was previously defined in multiple places. Finally, beefed up some test cases so that the three newly added modules had 100% test coverage. Towards #212.
122 lines
3.9 KiB
Python
122 lines
3.9 KiB
Python
# Copyright 2014 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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import mock
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import os
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import sys
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import unittest
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try:
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reload
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except NameError:
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# For Python3 (though importlib should be used, silly 3.3).
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from imp import reload
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from oauth2client import _helpers
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from oauth2client.client import HAS_OPENSSL
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from oauth2client.client import SignedJwtAssertionCredentials
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from oauth2client import crypt
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def datafile(filename):
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f = open(os.path.join(os.path.dirname(__file__), 'data', filename), 'rb')
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data = f.read()
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f.close()
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return data
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class Test_pkcs12_key_as_pem(unittest.TestCase):
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def _make_signed_jwt_creds(self, private_key_file='privatekey.p12',
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private_key=None):
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private_key = private_key or datafile(private_key_file)
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return SignedJwtAssertionCredentials(
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'some_account@example.com',
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private_key,
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scope='read+write',
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sub='joe@example.org')
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def _succeeds_helper(self, password=None):
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self.assertEqual(True, HAS_OPENSSL)
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credentials = self._make_signed_jwt_creds()
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if password is None:
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password = credentials.private_key_password
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pem_contents = crypt.pkcs12_key_as_pem(credentials.private_key, password)
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pkcs12_key_as_pem = datafile('pem_from_pkcs12.pem')
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pkcs12_key_as_pem = _helpers._parse_pem_key(pkcs12_key_as_pem)
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alternate_pem = datafile('pem_from_pkcs12_alternate.pem')
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self.assertTrue(pem_contents in [pkcs12_key_as_pem, alternate_pem])
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def test_succeeds(self):
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self._succeeds_helper()
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def test_succeeds_with_unicode_password(self):
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password = u'notasecret'
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self._succeeds_helper(password)
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def test_without_openssl(self):
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import imp
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imp_find_module = imp.find_module
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orig_sys_path = sys.path
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def find_module(module_name):
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raise ImportError('No module named %s' % module_name)
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try:
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for m in list(sys.modules):
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if m.startswith('OpenSSL'):
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sys.modules.pop(m)
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sys.path = []
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imp.find_module = find_module
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reload(crypt)
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self.assertRaises(NotImplementedError, crypt.pkcs12_key_as_pem,
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'FOO', 'BAR')
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finally:
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sys.path = orig_sys_path
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imp.find_module = imp_find_module
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import OpenSSL.crypto
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reload(crypt)
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def test_without_openssl_crypto(self):
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import imp
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imp_find_module = imp.find_module
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orig_sys_path = sys.path
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orig_isfile = os.path.isfile
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openssl_module = imp.find_module('OpenSSL')
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def find_module(module_name):
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if module_name == 'OpenSSL':
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return openssl_module
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raise ImportError('No module named %s' % module_name)
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try:
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for m in list(sys.modules):
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if m.startswith('OpenSSL'):
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sys.modules.pop(m)
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sys.path = []
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imp.find_module = find_module
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os.path.isfile = lambda filename: False
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reload(crypt)
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self.assertRaises(NotImplementedError, crypt.pkcs12_key_as_pem,
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'FOO', 'BAR')
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finally:
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sys.path = orig_sys_path
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imp.find_module = imp_find_module
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os.path.isfile = orig_isfile
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import OpenSSL.crypto
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reload(crypt)
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def test_with_nonsense_key(self):
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from OpenSSL import crypto
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credentials = self._make_signed_jwt_creds(private_key=b'NOT_A_KEY')
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self.assertRaises(crypto.Error, crypt.pkcs12_key_as_pem,
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credentials.private_key, credentials.private_key_password)
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