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community.general/test/units/parsing/vault/test_vault_editor.py
Dag Wieers 4efec414e7 test/: PEP8 compliancy (#24803)
* test/: PEP8 compliancy

- Make PEP8 compliant

* Python3 chokes on casting int to bytes (#24952)

But if we tell the formatter that the var is a number, it works
2017-05-30 18:05:19 +01:00

544 lines
19 KiB
Python

# (c) 2014, James Tanner <tanner.jc@gmail.com>
# (c) 2014, James Cammarata, <jcammarata@ansible.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
import tempfile
from nose.plugins.skip import SkipTest
from ansible.compat.tests import unittest
from ansible.compat.tests.mock import patch
from ansible import errors
from ansible.parsing import vault
from ansible.module_utils._text import to_bytes, to_text
# Counter import fails for 2.0.1, requires >= 2.6.1 from pip
try:
from Crypto.Util import Counter
HAS_COUNTER = True
except ImportError:
HAS_COUNTER = False
# KDF import fails for 2.0.1, requires >= 2.6.1 from pip
try:
from Crypto.Protocol.KDF import PBKDF2
HAS_PBKDF2 = True
except ImportError:
HAS_PBKDF2 = False
# AES IMPORTS
try:
from Crypto.Cipher import AES as AES
HAS_AES = True
except ImportError:
HAS_AES = False
v10_data = """$ANSIBLE_VAULT;1.0;AES
53616c7465645f5fd0026926a2d415a28a2622116273fbc90e377225c12a347e1daf4456d36a77f9
9ad98d59f61d06a4b66718d855f16fb7bdfe54d1ec8aeaa4d06c2dc1fa630ae1846a029877f0eeb1
83c62ffb04c2512995e815de4b4d29ed"""
v11_data = """$ANSIBLE_VAULT;1.1;AES256
62303130653266653331306264616235333735323636616539316433666463323964623162386137
3961616263373033353631316333623566303532663065310a393036623466376263393961326530
64336561613965383835646464623865663966323464653236343638373165343863623638316664
3631633031323837340a396530313963373030343933616133393566366137363761373930663833
3739"""
class TestVaultEditor(unittest.TestCase):
def setUp(self):
self._test_dir = None
def tearDown(self):
if self._test_dir:
pass
# shutil.rmtree(self._test_dir)
self._test_dir = None
def test_methods_exist(self):
v = vault.VaultEditor(None)
slots = ['create_file',
'decrypt_file',
'edit_file',
'encrypt_file',
'rekey_file',
'read_data',
'write_data']
for slot in slots:
assert hasattr(v, slot), "VaultLib is missing the %s method" % slot
def _create_test_dir(self):
suffix = '_ansible_unit_test_%s_' % (self.__class__.__name__)
return tempfile.mkdtemp(suffix=suffix)
def _create_file(self, test_dir, name, content=None, symlink=False):
file_path = os.path.join(test_dir, name)
opened_file = open(file_path, 'wb')
if content:
opened_file.write(content)
opened_file.close()
return file_path
@patch('ansible.parsing.vault.call')
def test_edit_file_helper_empty_target(self, mock_sp_call):
self._test_dir = self._create_test_dir()
src_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_contents)
mock_sp_call.side_effect = self._faux_command
ve = vault.VaultEditor('password')
b_ciphertext = ve._edit_file_helper(src_file_path)
self.assertNotEqual(src_contents, b_ciphertext)
@patch('ansible.parsing.vault.call')
def test_edit_file_helper_call_exception(self, mock_sp_call):
self._test_dir = self._create_test_dir()
src_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_contents)
error_txt = 'calling editor raised an exception'
mock_sp_call.side_effect = errors.AnsibleError(error_txt)
ve = vault.VaultEditor('password')
self.assertRaisesRegexp(errors.AnsibleError,
error_txt,
ve._edit_file_helper,
src_file_path)
@patch('ansible.parsing.vault.call')
def test_edit_file_helper_symlink_target(self, mock_sp_call):
self._test_dir = self._create_test_dir()
src_file_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_file_contents)
src_file_link_path = os.path.join(self._test_dir, 'a_link_to_dest_file')
os.symlink(src_file_path, src_file_link_path)
mock_sp_call.side_effect = self._faux_command
ve = vault.VaultEditor('password')
b_ciphertext = ve._edit_file_helper(src_file_link_path)
self.assertNotEqual(src_file_contents, b_ciphertext,
'b_ciphertext should be encrypted and not equal to src_contents')
def _faux_editor(self, editor_args, new_src_contents=None):
if editor_args[0] == 'shred':
return
tmp_path = editor_args[-1]
# simulate the tmp file being editted
tmp_file = open(tmp_path, 'wb')
if new_src_contents:
tmp_file.write(new_src_contents)
tmp_file.close()
def _faux_command(self, tmp_path):
pass
@patch('ansible.parsing.vault.call')
def test_edit_file_helper_no_change(self, mock_sp_call):
self._test_dir = self._create_test_dir()
src_file_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_file_contents)
# editor invocation doesnt change anything
def faux_editor(editor_args):
self._faux_editor(editor_args, src_file_contents)
mock_sp_call.side_effect = faux_editor
ve = vault.VaultEditor('password')
ve._edit_file_helper(src_file_path, existing_data=src_file_contents)
new_target_file = open(src_file_path, 'rb')
new_target_file_contents = new_target_file.read()
self.assertEqual(src_file_contents, new_target_file_contents)
def _assert_file_is_encrypted(self, vault_editor, src_file_path, src_contents):
new_src_file = open(src_file_path, 'rb')
new_src_file_contents = new_src_file.read()
# TODO: assert that it is encrypted
self.assertTrue(vault.is_encrypted(new_src_file_contents))
src_file_plaintext = vault_editor.vault.decrypt(new_src_file_contents)
# the plaintext should not be encrypted
self.assertFalse(vault.is_encrypted(src_file_plaintext))
# and the new plaintext should match the original
self.assertEqual(src_file_plaintext, src_contents)
def _assert_file_is_link(self, src_file_link_path, src_file_path):
self.assertTrue(os.path.islink(src_file_link_path),
'The dest path (%s) should be a symlink to (%s) but is not' % (src_file_link_path, src_file_path))
def test_rekey_file(self):
self._test_dir = self._create_test_dir()
src_file_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_file_contents)
ve = vault.VaultEditor('password')
ve.encrypt_file(src_file_path)
new_password = 'password2:electricbugaloo'
ve.rekey_file(src_file_path, new_password)
new_ve = vault.VaultEditor(new_password)
self._assert_file_is_encrypted(new_ve, src_file_path, src_file_contents)
def test_rekey_file_no_new_password(self):
self._test_dir = self._create_test_dir()
src_file_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_file_contents)
ve = vault.VaultEditor('password')
ve.encrypt_file(src_file_path)
self.assertRaisesRegexp(errors.AnsibleError,
'The value for the new_password to rekey',
ve.rekey_file,
src_file_path,
None)
def test_rekey_file_not_encrypted(self):
self._test_dir = self._create_test_dir()
src_file_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_file_contents)
ve = vault.VaultEditor('password')
new_password = 'password2:electricbugaloo'
self.assertRaisesRegexp(errors.AnsibleError,
'input is not vault encrypted data',
ve.rekey_file,
src_file_path, new_password)
def test_plaintext(self):
self._test_dir = self._create_test_dir()
src_file_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_file_contents)
ve = vault.VaultEditor('password')
ve.encrypt_file(src_file_path)
res = ve.plaintext(src_file_path)
self.assertEquals(src_file_contents, res)
def test_plaintext_not_encrypted(self):
self._test_dir = self._create_test_dir()
src_file_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_file_contents)
ve = vault.VaultEditor('password')
self.assertRaisesRegexp(errors.AnsibleError,
'input is not vault encrypted data',
ve.plaintext,
src_file_path)
def test_encrypt_file(self):
self._test_dir = self._create_test_dir()
src_file_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_file_contents)
ve = vault.VaultEditor('password')
ve.encrypt_file(src_file_path)
self._assert_file_is_encrypted(ve, src_file_path, src_file_contents)
def test_encrypt_file_symlink(self):
self._test_dir = self._create_test_dir()
src_file_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_file_contents)
src_file_link_path = os.path.join(self._test_dir, 'a_link_to_dest_file')
os.symlink(src_file_path, src_file_link_path)
ve = vault.VaultEditor('password')
ve.encrypt_file(src_file_link_path)
self._assert_file_is_encrypted(ve, src_file_path, src_file_contents)
self._assert_file_is_encrypted(ve, src_file_link_path, src_file_contents)
self._assert_file_is_link(src_file_link_path, src_file_path)
@patch('ansible.parsing.vault.call')
def test_edit_file(self, mock_sp_call):
self._test_dir = self._create_test_dir()
src_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_contents)
new_src_contents = to_bytes("The info is different now.")
def faux_editor(editor_args):
self._faux_editor(editor_args, new_src_contents)
mock_sp_call.side_effect = faux_editor
ve = vault.VaultEditor('password')
ve.encrypt_file(src_file_path)
ve.edit_file(src_file_path)
new_src_file = open(src_file_path, 'rb')
new_src_file_contents = new_src_file.read()
src_file_plaintext = ve.vault.decrypt(new_src_file_contents)
self.assertEqual(src_file_plaintext, new_src_contents)
new_stat = os.stat(src_file_path)
print(new_stat)
@patch('ansible.parsing.vault.call')
def test_edit_file_symlink(self, mock_sp_call):
self._test_dir = self._create_test_dir()
src_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_contents)
new_src_contents = to_bytes("The info is different now.")
def faux_editor(editor_args):
self._faux_editor(editor_args, new_src_contents)
mock_sp_call.side_effect = faux_editor
ve = vault.VaultEditor('password')
ve.encrypt_file(src_file_path)
src_file_link_path = os.path.join(self._test_dir, 'a_link_to_dest_file')
os.symlink(src_file_path, src_file_link_path)
ve.edit_file(src_file_link_path)
new_src_file = open(src_file_path, 'rb')
new_src_file_contents = new_src_file.read()
src_file_plaintext = ve.vault.decrypt(new_src_file_contents)
self._assert_file_is_link(src_file_link_path, src_file_path)
self.assertEqual(src_file_plaintext, new_src_contents)
# self.assertEqual(src_file_plaintext, new_src_contents,
# 'The decrypted plaintext of the editted file is not the expected contents.')
@patch('ansible.parsing.vault.call')
def test_edit_file_not_encrypted(self, mock_sp_call):
self._test_dir = self._create_test_dir()
src_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_contents)
new_src_contents = to_bytes("The info is different now.")
def faux_editor(editor_args):
self._faux_editor(editor_args, new_src_contents)
mock_sp_call.side_effect = faux_editor
ve = vault.VaultEditor('password')
self.assertRaisesRegexp(errors.AnsibleError,
'input is not vault encrypted data',
ve.edit_file,
src_file_path)
def test_create_file_exists(self):
self._test_dir = self._create_test_dir()
src_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_contents)
ve = vault.VaultEditor('password')
self.assertRaisesRegexp(errors.AnsibleError,
'please use .edit. instead',
ve.create_file,
src_file_path)
def test_decrypt_file_exception(self):
self._test_dir = self._create_test_dir()
src_contents = to_bytes("some info in a file\nyup.")
src_file_path = self._create_file(self._test_dir, 'src_file', content=src_contents)
ve = vault.VaultEditor('password')
self.assertRaisesRegexp(errors.AnsibleError,
'input is not vault encrypted data',
ve.decrypt_file,
src_file_path)
@patch.object(vault.VaultEditor, '_editor_shell_command')
def test_create_file(self, mock_editor_shell_command):
def sc_side_effect(filename):
return ['touch', filename]
mock_editor_shell_command.side_effect = sc_side_effect
tmp_file = tempfile.NamedTemporaryFile()
os.unlink(tmp_file.name)
ve = vault.VaultEditor("ansible")
ve.create_file(tmp_file.name)
self.assertTrue(os.path.exists(tmp_file.name))
def test_decrypt_1_0(self):
# Skip testing decrypting 1.0 files if we don't have access to AES, KDF or Counter.
if not HAS_AES or not HAS_COUNTER or not HAS_PBKDF2:
raise SkipTest
v10_file = tempfile.NamedTemporaryFile(delete=False)
with v10_file as f:
f.write(to_bytes(v10_data))
ve = vault.VaultEditor("ansible")
# make sure the password functions for the cipher
error_hit = False
try:
ve.decrypt_file(v10_file.name)
except errors.AnsibleError:
error_hit = True
# verify decrypted content
f = open(v10_file.name, "rb")
fdata = to_text(f.read())
f.close()
os.unlink(v10_file.name)
assert error_hit is False, "error decrypting 1.0 file"
self.assertEquals(fdata.strip(), "foo")
assert fdata.strip() == "foo", "incorrect decryption of 1.0 file: %s" % fdata.strip()
def test_decrypt_1_1(self):
if not HAS_AES or not HAS_COUNTER or not HAS_PBKDF2:
raise SkipTest
v11_file = tempfile.NamedTemporaryFile(delete=False)
with v11_file as f:
f.write(to_bytes(v11_data))
ve = vault.VaultEditor("ansible")
# make sure the password functions for the cipher
error_hit = False
try:
ve.decrypt_file(v11_file.name)
except errors.AnsibleError:
error_hit = True
# verify decrypted content
f = open(v11_file.name, "rb")
fdata = to_text(f.read())
f.close()
os.unlink(v11_file.name)
assert error_hit is False, "error decrypting 1.0 file"
assert fdata.strip() == "foo", "incorrect decryption of 1.0 file: %s" % fdata.strip()
def test_rekey_migration(self):
# Skip testing rekeying files if we don't have access to AES, KDF or Counter.
if not HAS_AES or not HAS_COUNTER or not HAS_PBKDF2:
raise SkipTest
v10_file = tempfile.NamedTemporaryFile(delete=False)
with v10_file as f:
f.write(to_bytes(v10_data))
ve = vault.VaultEditor("ansible")
# make sure the password functions for the cipher
error_hit = False
try:
ve.rekey_file(v10_file.name, 'ansible2')
except errors.AnsibleError:
error_hit = True
# verify decrypted content
f = open(v10_file.name, "rb")
fdata = f.read()
f.close()
assert error_hit is False, "error rekeying 1.0 file to 1.1"
# ensure filedata can be decrypted, is 1.1 and is AES256
vl = vault.VaultLib("ansible2")
dec_data = None
error_hit = False
try:
dec_data = vl.decrypt(fdata)
except errors.AnsibleError:
error_hit = True
os.unlink(v10_file.name)
assert vl.cipher_name == "AES256", "wrong cipher name set after rekey: %s" % vl.cipher_name
assert error_hit is False, "error decrypting migrated 1.0 file"
assert dec_data.strip() == b"foo", "incorrect decryption of rekeyed/migrated file: %s" % dec_data
def test_real_path_dash(self):
filename = '-'
ve = vault.VaultEditor('password')
res = ve._real_path(filename)
self.assertEqual(res, '-')
def test_real_path_dev_null(self):
filename = '/dev/null'
ve = vault.VaultEditor('password')
res = ve._real_path(filename)
self.assertEqual(res, '/dev/null')
def test_real_path_symlink(self):
self._test_dir = self._create_test_dir()
file_path = self._create_file(self._test_dir, 'test_file', content=b'this is a test file')
file_link_path = os.path.join(self._test_dir, 'a_link_to_test_file')
os.symlink(file_path, file_link_path)
ve = vault.VaultEditor('password')
res = ve._real_path(file_link_path)
self.assertEqual(res, file_path)