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# encoding=utf-8
# Copyright © 2017 Dylan Baker
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
from __future__ import absolute_import
import tempfile
import os
import shutil
import gpg
import mock
from twisted.trial import unittest
from twisted.internet.defer import inlineCallbacks
from alot import crypto
from alot import errors
from alot.commands import utils
from alot.db.envelope import Envelope
from .. import utilities
MOD_CLEAN = utilities.ModuleCleanup()
# A useful single fingerprint for tests that only care about one key. This
# key will not be ambiguous
FPR = "F74091D4133F87D56B5D343C1974EC55FBC2D660"
# Some additional keys, these keys may be ambigiuos
EXTRA_FPRS = [
"DD19862809A7573A74058FF255937AFBB156245D",
"2071E9C8DB4EF5466F4D233CF730DF92C4566CE7",
]
DEVNULL = open('/dev/null', 'w')
MOD_CLEAN.add_cleanup(DEVNULL.close)
@MOD_CLEAN.wrap_setup
def setUpModule():
home = tempfile.mkdtemp()
MOD_CLEAN.add_cleanup(shutil.rmtree, home)
mock_home = mock.patch.dict(os.environ, {'GNUPGHOME': home})
mock_home.start()
MOD_CLEAN.add_cleanup(mock_home.stop)
with gpg.core.Context(armor=True) as ctx:
# Add the public and private keys. They have no password
search_dir = os.path.join(os.path.dirname(__file__), '../static/gpg-keys')
for each in os.listdir(search_dir):
if os.path.splitext(each)[1] == '.gpg':
with open(os.path.join(search_dir, each)) as f:
ctx.op_import(f)
@MOD_CLEAN.wrap_teardown
def tearDownModule():
pass
class TestGetKeys(unittest.TestCase):
# pylint: disable=protected-access
@inlineCallbacks
def test_get_keys(self):
"""Test that getting keys works when all keys are present."""
expected = crypto.get_key(FPR, validate=True, encrypt=True,
signed_only=False)
ui = utilities.make_ui()
ids = [FPR]
actual = yield utils._get_keys(ui, ids)
self.assertIn(FPR, actual)
self.assertEqual(actual[FPR].fpr, expected.fpr)
@inlineCallbacks
def test_get_keys_missing(self):
"""Test that getting keys works when some keys are missing."""
expected = crypto.get_key(FPR, validate=True, encrypt=True,
signed_only=False)
ui = utilities.make_ui()
ids = [FPR, "6F6B15509CF8E59E6E469F327F438280EF8D349F"]
actual = yield utils._get_keys(ui, ids)
self.assertIn(FPR, actual)
self.assertEqual(actual[FPR].fpr, expected.fpr)
@inlineCallbacks
def test_get_keys_signed_only(self):
"""Test gettings keys when signed only is required."""
ui = utilities.make_ui()
ids = [FPR]
actual = yield utils._get_keys(ui, ids, signed_only=True)
self.assertEqual(actual, {})
@inlineCallbacks
def test_get_keys_ambiguous(self):
"""Test gettings keys when when the key is ambiguous."""
key = crypto.get_key(FPR, validate=True, encrypt=True, signed_only=False)
ui = utilities.make_ui()
# Creat a ui.choice object that can satisfy twisted, but can also be
# queried for calls as a mock
@inlineCallbacks
def choice(*args, **kwargs):
yield None
ui.choice = mock.Mock(wraps=choice)
ids = [FPR]
with mock.patch('alot.commands.utils.crypto.get_key',
mock.Mock(side_effect=errors.GPGProblem(
'test', errors.GPGCode.AMBIGUOUS_NAME))):
with mock.patch('alot.commands.utils.crypto.list_keys',
mock.Mock(return_value=[key])):
yield utils._get_keys(ui, ids, signed_only=False)
ui.choice.assert_called_once()
class _Account(object):
def __init__(self, encrypt_to_self=True, gpg_key=None):
self.encrypt_to_self = encrypt_to_self
self.gpg_key = gpg_key
class TestSetEncrypt(unittest.TestCase):
@inlineCallbacks
def test_get_keys_from_to(self):
ui = utilities.make_ui()
envelope = Envelope()
envelope['To'] = 'ambig@example.com, test@example.com'
yield utils.set_encrypt(ui, envelope)
self.assertTrue(envelope.encrypt)
self.assertEqual(
[f.fpr for f in envelope.encrypt_keys.values()],
[crypto.get_key(FPR).fpr, crypto.get_key(EXTRA_FPRS[0]).fpr])
@inlineCallbacks
def test_get_keys_from_cc(self):
ui = utilities.make_ui()
envelope = Envelope()
envelope['Cc'] = 'ambig@example.com, test@example.com'
yield utils.set_encrypt(ui, envelope)
self.assertTrue(envelope.encrypt)
self.assertEqual(
[f.fpr for f in envelope.encrypt_keys.values()],
[crypto.get_key(FPR).fpr, crypto.get_key(EXTRA_FPRS[0]).fpr])
@inlineCallbacks
def test_get_partial_keys(self):
ui = utilities.make_ui()
envelope = Envelope()
envelope['Cc'] = 'foo@example.com, test@example.com'
yield utils.set_encrypt(ui, envelope)
self.assertTrue(envelope.encrypt)
self.assertEqual(
[f.fpr for f in envelope.encrypt_keys.values()],
[crypto.get_key(FPR).fpr])
@inlineCallbacks
def test_get_no_keys(self):
ui = utilities.make_ui()
envelope = Envelope()
envelope['To'] = 'foo@example.com'
yield utils.set_encrypt(ui, envelope)
self.assertFalse(envelope.encrypt)
self.assertEqual(envelope.encrypt_keys, {})
@inlineCallbacks
def test_encrypt_to_self_true(self):
ui = utilities.make_ui()
envelope = Envelope()
envelope['From'] = 'test@example.com'
envelope['To'] = 'ambig@example.com'
gpg_key = crypto.get_key(FPR)
account = _Account(encrypt_to_self=True, gpg_key=gpg_key)
with mock.patch('alot.commands.thread.settings.get_account_by_address',
mock.Mock(return_value=account)):
yield utils.set_encrypt(ui, envelope)
self.assertTrue(envelope.encrypt)
self.assertIn(FPR, envelope.encrypt_keys)
self.assertEqual(gpg_key, envelope.encrypt_keys[FPR])
@inlineCallbacks
def test_encrypt_to_self_false(self):
ui = utilities.make_ui()
envelope = Envelope()
envelope['From'] = 'test@example.com'
envelope['To'] = 'ambig@example.com'
gpg_key = crypto.get_key(FPR)
account = _Account(encrypt_to_self=False, gpg_key=gpg_key)
with mock.patch('alot.commands.thread.settings.get_account_by_address',
mock.Mock(return_value=account)):
yield utils.set_encrypt(ui, envelope)
self.assertTrue(envelope.encrypt)
self.assertNotIn(FPR, envelope.encrypt_keys)
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