summaryrefslogtreecommitdiff
path: root/src/leap/keymanager/tests/test_keymanager.py
blob: 86832bab3c4e10b2cefd2ac7539e96af99017da8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
# -*- coding: utf-8 -*-
# test_keymanager.py
# Copyright (C) 2013 LEAP
#
# 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/>.


"""
Tests for the Key Manager.
"""


from datetime import datetime
from mock import Mock
from twisted.internet.defer import inlineCallbacks
from twisted.trial import unittest

from leap.keymanager import (
    KeyNotFound,
    KeyAddressMismatch,
    errors
)
from leap.keymanager.openpgp import OpenPGPKey
from leap.keymanager.keys import (
    is_address,
    build_key_from_dict,
)
from leap.keymanager.validation import (
    ValidationLevel,
    toValidationLevel
)
from leap.keymanager.tests import (
    KeyManagerWithSoledadTestCase,
    ADDRESS,
    ADDRESS_2,
    KEY_FINGERPRINT,
    PUBLIC_KEY,
    PUBLIC_KEY_2,
    PRIVATE_KEY,
    PRIVATE_KEY_2,
)


class KeyManagerUtilTestCase(unittest.TestCase):

    def test_is_address(self):
        self.assertTrue(
            is_address('user@leap.se'),
            'Incorrect address detection.')
        self.assertFalse(
            is_address('userleap.se'),
            'Incorrect address detection.')
        self.assertFalse(
            is_address('user@'),
            'Incorrect address detection.')
        self.assertFalse(
            is_address('@leap.se'),
            'Incorrect address detection.')

    def test_build_key_from_dict(self):
        kdict = {
            'address': [ADDRESS],
            'key_id': KEY_FINGERPRINT[-16:],
            'fingerprint': KEY_FINGERPRINT,
            'key_data': PUBLIC_KEY,
            'private': False,
            'length': 4096,
            'expiry_date': 0,
            'last_audited_at': 0,
            'refreshed_at': 1311239602,
            'validation': str(ValidationLevel.Weak_Chain),
            'encr_used': False,
            'sign_used': True,
        }
        key = build_key_from_dict(OpenPGPKey, kdict)
        self.assertEqual(
            kdict['address'], key.address,
            'Wrong data in key.')
        self.assertEqual(
            kdict['key_id'], key.key_id,
            'Wrong data in key.')
        self.assertEqual(
            kdict['fingerprint'], key.fingerprint,
            'Wrong data in key.')
        self.assertEqual(
            kdict['key_data'], key.key_data,
            'Wrong data in key.')
        self.assertEqual(
            kdict['private'], key.private,
            'Wrong data in key.')
        self.assertEqual(
            kdict['length'], key.length,
            'Wrong data in key.')
        self.assertEqual(
            None, key.expiry_date,
            'Wrong data in key.')
        self.assertEqual(
            None, key.last_audited_at,
            'Wrong data in key.')
        self.assertEqual(
            datetime.fromtimestamp(kdict['refreshed_at']), key.refreshed_at,
            'Wrong data in key.')
        self.assertEqual(
            toValidationLevel(kdict['validation']), key.validation,
            'Wrong data in key.')
        self.assertEqual(
            kdict['encr_used'], key.encr_used,
            'Wrong data in key.')
        self.assertEqual(
            kdict['sign_used'], key.sign_used,
            'Wrong data in key.')


class KeyManagerKeyManagementTestCase(KeyManagerWithSoledadTestCase):

    @inlineCallbacks
    def test_get_all_keys_in_db(self):
        km = self._key_manager()
        yield km._wrapper_map[OpenPGPKey].put_ascii_key(PRIVATE_KEY, ADDRESS)
        # get public keys
        keys = yield km.get_all_keys(False)
        self.assertEqual(len(keys), 1, 'Wrong number of keys')
        self.assertTrue(ADDRESS in keys[0].address)
        self.assertFalse(keys[0].private)
        # get private keys
        keys = yield km.get_all_keys(True)
        self.assertEqual(len(keys), 1, 'Wrong number of keys')
        self.assertTrue(ADDRESS in keys[0].address)
        self.assertTrue(keys[0].private)

    @inlineCallbacks
    def test_get_public_key(self):
        km = self._key_manager()
        yield km._wrapper_map[OpenPGPKey].put_ascii_key(PRIVATE_KEY, ADDRESS)
        # get the key
        key = yield km.get_key(ADDRESS, OpenPGPKey, private=False,
                               fetch_remote=False)
        self.assertTrue(key is not None)
        self.assertTrue(ADDRESS in key.address)
        self.assertEqual(
            key.fingerprint.lower(), KEY_FINGERPRINT.lower())
        self.assertFalse(key.private)

    @inlineCallbacks
    def test_get_private_key(self):
        km = self._key_manager()
        yield km._wrapper_map[OpenPGPKey].put_ascii_key(PRIVATE_KEY, ADDRESS)
        # get the key
        key = yield km.get_key(ADDRESS, OpenPGPKey, private=True,
                               fetch_remote=False)
        self.assertTrue(key is not None)
        self.assertTrue(ADDRESS in key.address)
        self.assertEqual(
            key.fingerprint.lower(), KEY_FINGERPRINT.lower())
        self.assertTrue(key.private)

    def test_send_key_raises_key_not_found(self):
        km = self._key_manager()
        d = km.send_key(OpenPGPKey)
        return self.assertFailure(d, KeyNotFound)

    @inlineCallbacks
    def test_send_key(self):
        """
        Test that request is well formed when sending keys to server.
        """
        token = "mytoken"
        km = self._key_manager(token=token)
        yield km._wrapper_map[OpenPGPKey].put_ascii_key(PUBLIC_KEY, ADDRESS)
        km._fetcher.put = Mock()
        # the following data will be used on the send
        km.ca_cert_path = 'capath'
        km.session_id = 'sessionid'
        km.uid = 'myuid'
        km.api_uri = 'apiuri'
        km.api_version = 'apiver'
        yield km.send_key(OpenPGPKey)
        # setup expected args
        pubkey = yield km.get_key(km._address, OpenPGPKey)
        data = {
            km.PUBKEY_KEY: pubkey.key_data,
        }
        url = '%s/%s/users/%s.json' % ('apiuri', 'apiver', 'myuid')
        km._fetcher.put.assert_called_once_with(
            url, data=data, verify='capath',
            headers={'Authorization': 'Token token=%s' % token},
        )

    def test_fetch_keys_from_server(self):
        """
        Test that the request is well formed when fetching keys from server.
        """
        km = self._key_manager(url='http://nickserver.domain')

        class Response(object):
            status_code = 200
            headers = {'content-type': 'application/json'}

            def json(self):
                return {'address': ADDRESS_2, 'openpgp': PUBLIC_KEY_2}

            def raise_for_status(self):
                pass

        # mock the fetcher so it returns the key for ADDRESS_2
        km._fetcher.get = Mock(
            return_value=Response())
        km.ca_cert_path = 'cacertpath'

        def verify_the_call(_):
            km._fetcher.get.assert_called_once_with(
                'http://nickserver.domain',
                data={'address': ADDRESS_2},
                verify='cacertpath',
            )

        d = km._fetch_keys_from_server(ADDRESS_2)
        d.addCallback(verify_the_call)
        return d

    @inlineCallbacks
    def test_get_key_fetches_from_server(self):
        """
        Test that getting a key successfuly fetches from server.
        """
        km = self._key_manager(url='http://nickserver.domain')

        class Response(object):
            status_code = 200
            headers = {'content-type': 'application/json'}

            def json(self):
                return {'address': ADDRESS, 'openpgp': PUBLIC_KEY}

            def raise_for_status(self):
                pass

        # mock the fetcher so it returns the key for ADDRESS_2
        km._fetcher.get = Mock(return_value=Response())
        km.ca_cert_path = 'cacertpath'
        # try to key get without fetching from server
        d = km.get_key(ADDRESS, OpenPGPKey, fetch_remote=False)
        yield self.assertFailure(d, KeyNotFound)
        # try to get key fetching from server.
        key = yield km.get_key(ADDRESS, OpenPGPKey)
        self.assertIsInstance(key, OpenPGPKey)
        self.assertTrue(ADDRESS in key.address)

    @inlineCallbacks
    def test_put_key_ascii(self):
        """
        Test that putting ascii key works
        """
        km = self._key_manager(url='http://nickserver.domain')

        yield km.put_raw_key(PUBLIC_KEY, OpenPGPKey, ADDRESS)
        key = yield km.get_key(ADDRESS, OpenPGPKey)
        self.assertIsInstance(key, OpenPGPKey)
        self.assertTrue(ADDRESS in key.address)

    @inlineCallbacks
    def test_fetch_uri_ascii_key(self):
        """
        Test that fetch key downloads the ascii key and gets included in
        the local storage
        """
        km = self._key_manager()

        class Response(object):
            ok = True
            content = PUBLIC_KEY

        km._fetcher.get = Mock(return_value=Response())
        km.ca_cert_path = 'cacertpath'

        yield km.fetch_key(ADDRESS, "http://site.domain/key", OpenPGPKey)
        key = yield km.get_key(ADDRESS, OpenPGPKey)
        self.assertEqual(KEY_FINGERPRINT, key.fingerprint)

    def test_fetch_uri_empty_key(self):
        """
        Test that fetch key raises KeyNotFound if no key in the url
        """
        km = self._key_manager()

        class Response(object):
            ok = True
            content = ""

        km._fetcher.get = Mock(return_value=Response())
        km.ca_cert_path = 'cacertpath'
        d = km.fetch_key(ADDRESS, "http://site.domain/key", OpenPGPKey)
        return self.assertFailure(d, KeyNotFound)

    def test_fetch_uri_address_differ(self):
        """
        Test that fetch key raises KeyAttributesDiffer if the address
        don't match
        """
        km = self._key_manager()

        class Response(object):
            ok = True
            content = PUBLIC_KEY

        km._fetcher.get = Mock(return_value=Response())
        km.ca_cert_path = 'cacertpath'
        d = km.fetch_key(ADDRESS_2, "http://site.domain/key", OpenPGPKey)
        return self.assertFailure(d, KeyAddressMismatch)


class KeyManagerCryptoTestCase(KeyManagerWithSoledadTestCase):

    RAW_DATA = 'data'

    @inlineCallbacks
    def test_keymanager_openpgp_encrypt_decrypt(self):
        km = self._key_manager()
        # put raw private key
        yield km._wrapper_map[OpenPGPKey].put_ascii_key(PRIVATE_KEY, ADDRESS)
        yield km._wrapper_map[OpenPGPKey].put_ascii_key(
            PRIVATE_KEY_2, ADDRESS_2)
        # encrypt
        encdata = yield km.encrypt(self.RAW_DATA, ADDRESS, OpenPGPKey,
                                   sign=ADDRESS_2, fetch_remote=False)
        self.assertNotEqual(self.RAW_DATA, encdata)
        # decrypt
        rawdata, signingkey = yield km.decrypt(
            encdata, ADDRESS, OpenPGPKey, verify=ADDRESS_2, fetch_remote=False)
        self.assertEqual(self.RAW_DATA, rawdata)
        key = yield km.get_key(ADDRESS_2, OpenPGPKey, private=False,
                               fetch_remote=False)
        self.assertEqual(signingkey.fingerprint, key.fingerprint)

    @inlineCallbacks
    def test_keymanager_openpgp_encrypt_decrypt_wrong_sign(self):
        km = self._key_manager()
        # put raw keys
        yield km._wrapper_map[OpenPGPKey].put_ascii_key(PRIVATE_KEY, ADDRESS)
        yield km._wrapper_map[OpenPGPKey].put_ascii_key(
            PRIVATE_KEY_2, ADDRESS_2)
        # encrypt
        encdata = yield km.encrypt(self.RAW_DATA, ADDRESS, OpenPGPKey,
                                   sign=ADDRESS_2, fetch_remote=False)
        self.assertNotEqual(self.RAW_DATA, encdata)
        # verify
        rawdata, signingkey = yield km.decrypt(
            encdata, ADDRESS, OpenPGPKey, verify=ADDRESS, fetch_remote=False)
        self.assertEqual(self.RAW_DATA, rawdata)
        self.assertTrue(isinstance(signingkey, errors.InvalidSignature))

    @inlineCallbacks
    def test_keymanager_openpgp_sign_verify(self):
        km = self._key_manager()
        # put raw private keys
        yield km._wrapper_map[OpenPGPKey].put_ascii_key(PRIVATE_KEY, ADDRESS)
        signdata = yield km.sign(self.RAW_DATA, ADDRESS, OpenPGPKey,
                                 detach=False)
        self.assertNotEqual(self.RAW_DATA, signdata)
        # verify
        signingkey = yield km.verify(signdata, ADDRESS, OpenPGPKey,
                                     fetch_remote=False)
        key = yield km.get_key(ADDRESS, OpenPGPKey, private=False,
                               fetch_remote=False)
        self.assertEqual(signingkey.fingerprint, key.fingerprint)

    def test_keymanager_encrypt_key_not_found(self):
        km = self._key_manager()
        d = km._wrapper_map[OpenPGPKey].put_ascii_key(PRIVATE_KEY, ADDRESS)
        d.addCallback(
            lambda _: km.encrypt(self.RAW_DATA, ADDRESS_2, OpenPGPKey,
                                 sign=ADDRESS, fetch_remote=False))
        return self.assertFailure(d, KeyNotFound)


import unittest
if __name__ == "__main__":
    unittest.main()