/brz/remove-bazaar

# Copyright (C) 2005, 2006, 2007, 2009, 2011 Canonical Ltd

#   Authors: Robert Collins <robert.collins@canonical.com>

#

# 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 2 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, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Tests for signing and verifying blobs of data via gpg."""

# import system imports here

import sys

from bzrlib import errors, ui

import bzrlib.gpg as gpg

from bzrlib.tests import TestCase

from bzrlib.tests import features

class FakeConfig(object):

    def gpg_signing_key(self):

        return "amy@example.com"

    def gpg_signing_command(self):

        return "false"

    def acceptable_keys(self):

        return None

class TestCommandLine(TestCase):

    def test_signing_command_line(self):

        my_gpg = gpg.GPGStrategy(FakeConfig())

        self.assertEqual(['false',  '--clearsign', '-u', 'amy@example.com'],

                         my_gpg._command_line())

    def test_checks_return_code(self):

        # This test needs a unix like platform - one with 'false' to run.

        # if you have one, please make this work :)

        my_gpg = gpg.GPGStrategy(FakeConfig())

        self.assertRaises(errors.SigningFailed, my_gpg.sign, 'content')

    def assertProduces(self, content):

        # This needs a 'cat' command or similar to work.

        my_gpg = gpg.GPGStrategy(FakeConfig())

        if sys.platform == 'win32':

            # Windows doesn't come with cat, and we don't require it

            # so lets try using python instead.

            # But stupid windows and line-ending conversions.

            # It is too much work to make sys.stdout be in binary mode.

            # http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/65443

            my_gpg._command_line = lambda:[sys.executable, '-c',

                    'import sys; sys.stdout.write(sys.stdin.read())']

            new_content = content.replace('\n', '\r\n')

            self.assertEqual(new_content, my_gpg.sign(content))

        else:

            my_gpg._command_line = lambda:['cat', '-']

            self.assertEqual(content, my_gpg.sign(content))

    def test_returns_output(self):

        content = "some content\nwith newlines\n"

        self.assertProduces(content)

    def test_clears_progress(self):

        content = "some content\nwith newlines\n"

        old_clear_term = ui.ui_factory.clear_term

        clear_term_called = []

        def clear_term():

            old_clear_term()

            clear_term_called.append(True)

        ui.ui_factory.clear_term = clear_term

        try:

            self.assertProduces(content)

        finally:

            ui.ui_factory.clear_term = old_clear_term

        self.assertEqual([True], clear_term_called)

    def test_aborts_on_unicode(self):

        """You can't sign Unicode text; it must be encoded first."""

        self.assertRaises(errors.BzrBadParameterUnicode,

                          self.assertProduces, u'foo')

class TestVerify(TestCase):

    def import_keys(self):

        from StringIO import StringIO

        import gpgme

        context = gpgme.Context()

        key = StringIO("""-----BEGIN PGP PUBLIC KEY BLOCK-----

Version: GnuPG v1.4.11 (GNU/Linux)

mQENBE343IgBCADwzPW7kmKb2bjB+UU+1ER/ABMZspvtoZMPusUw7bk6coXHF/0W

u1K/hSYeX9xaGOfOQw41r/g13MoR9dsL6L84RLiisf38rRoBZt+d5bCbZA5Xo801

2PeoBoGo6u5oOYKAFLMvrUitPiiE0IT/oQTfC4YUrLN4A+9W0QZruPGIpIXwmZXr

L0zsqYfNqIN0ompeJenVpKpvm3loJ/zfK7R3EJ3hsv6nkUmWCFsP1Pw3UV1YuCmw

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eSA8YmF6YWFyQGV4YW1wbGUuY29tPokBOAQTAQIAIgUCTfjciAIbAwYLCQgHAwIG

FQgCCQoLBBYCAwECHgECF4AACgkQh2gbHuMIDkWJUggAwj537fH6WW+GGLA5onys

2hZmXUq/tU+L92bjQoRY4fmsQpk/FUVPUf+NQ0v1gkxx4BTfyYewaj5G6L8cvqW2

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IOAZIwe5Vsfs36uSS7p8RQHAZXLXtTOn3KcXHaxu83w6nc4zkWRovGJ9isBN3haO

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P6ktvXbX2Iu7VDNoCvRXM9+ntyJtsXCjNXg4pTGHS/XO4nm2db4FUZOBcVMb1vCc

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X8yMlN4O3HfmgD9CbJdUxueP3e31OIYuwh/6F7GII8TNEVHU/8vh/mQcCxppNbc+

boff+kIsoa/TAMLwtJoSrX1nXm0K3vZePRLnIgmwVzdkOIkaRJUG2tSQFvkfhvtE

LhnkL5l4MO0wrUds0UWRwa3d7j/P2ExrqXdlLmEzrifWyEQ=

=hUJn

-----END PGP PUBLIC KEY BLOCK-----

""")

        secret_key = StringIO("""-----BEGIN PGP PRIVATE KEY BLOCK-----

Version: GnuPG v1.4.11 (GNU/Linux)

lQOYBE343IgBCADwzPW7kmKb2bjB+UU+1ER/ABMZspvtoZMPusUw7bk6coXHF/0W

u1K/hSYeX9xaGOfOQw41r/g13MoR9dsL6L84RLiisf38rRoBZt+d5bCbZA5Xo801

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jQX7e3LWPNaFyycHZWslKJq/EReTS0o+s2/gRQZYbrAewL1MGPfsh/6eszKKb3hU

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Gmk1tz5uh9/6Qiyhr9MAwvC0mhKtfWdebQre9l49EuciCbBXN2Q4iRpElQba1JAW

+R+G+0QuGeQvmXgw7TCtR2zRRZHBrd3uP8/YTGupd2UuYTOuJ9bIRA==

=LXn0

-----END PGP PRIVATE KEY BLOCK-----

""")

        revoked_key = StringIO("""-----BEGIN PGP PUBLIC KEY BLOCK-----

Version: GnuPG v1.4.11 (GNU/Linux)

mI0ETjlW5gEEAOb/6P+TVM59E897wRtatxys2BhsHCXM4T7xjIiANfDwejDdifqh

tluTfSJLLxPembtrrEjux1C0AJgc+f0MIfsc3Pr3eFJzKB2ot/1IVG1/1KnA0zt3

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pgQgAQIAEAUCTjlXkAkdAHJldm9rZWQACgkQjs6dvEpb0cQPHAP/Wi9rbx0e+1Sf

ziGgyVdr3m3A6uvze5oXKVgFRbGRUYSH4/I8GW0W9x4TcRg9h+YaQ8NUdADr9kNE

tKAljLqYA5qdqSfYuaij1M++Xj+KUZ359R74sHuQqwnRy1XXQNfRs/QpXA7vLdds

rjg+pbWuXO92TZJUdnqtWW+VEyZBsPy0G3Rlc3Qga2V5IDx0ZXN0QGV4YW1wbGUu

Y29tPoi4BBMBAgAiBQJOOVbmAhsDBgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAAK

CRCOzp28SlvRxNWzA/42WVmI0b+6mF/imEOlY1TiyvrcpK250rkSDsCtL4lOwy7G

antZhpgNfnXRd/ySfsS3EB6dpOWgOSxGRvWQhA+vxBT9BYNk49qd3JIrSaSWpR12

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3J3/EmBB8kK1hM9TidD3SG64x1N287lg8ELJBlKv+pQVyxohGJ1u/THgpTDMMQcL

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7dMv2kKTJPoXUpiXJbg=

=hLYO

-----END PGP PUBLIC KEY BLOCK-----

""")

        expired_key = StringIO("""-----BEGIN PGP PUBLIC KEY BLOCK-----

Version: GnuPG v1.4.11 (GNU/Linux)

mI0ETjZ6PAEEALkR4GcFQidCCxV7pgQwQd5MZua0YO2l92fVqHX+PhnZ6egCLKdD

2bWlMUd6MLPF3FlRL7BBAxvW/DazkBOp7ljsnpMpptEzY49Uem1irYLYiVb9zK96

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rrYMsLkcsNUS9D0baU+0D/qp7JVg7ZSQtG0O6IG4eTZhibteY1fu0+unlXmg9NHx

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WzyX8DaHQEjKpLJJjXcAbTiZBNMk0QaVC9RvIeHpCf3n3DC49DdjsPJRMKOn8KDi

kRk=

=p0gt

-----END PGP PUBLIC KEY BLOCK-----

""")

        context.import_(key)

        context.import_(secret_key)

        context.import_(revoked_key)

        context.import_(expired_key)

    def test_verify_untrusted_but_accepted(self):

        #untrusted by gpg but listed as acceptable_keys by user

        self.requireFeature(features.gpgme)

        self.import_keys()

        content = """-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

bazaar-ng testament short form 1

revision-id: amy@example.com-20110527185938-hluafawphszb8dl1

sha1: 6411f9bdf6571200357140c9ce7c0f50106ac9a4

-----BEGIN PGP SIGNATURE-----

Version: GnuPG v1.4.11 (GNU/Linux)

iQEcBAEBAgAGBQJN+ekFAAoJEIdoGx7jCA5FGtEH/i+XxJRvqU6wdBtLVrGBMAGk

FZ5VP+KyXYtymSbgSstj/vM12NeMIeFs3xGnNnYuX1MIcY6We5TKtCH0epY6ym5+

6g2Q2QpQ5/sT2d0mWzR0K4uVngmxVQaXTdk5PdZ40O7ULeDLW6CxzxMHyUL1rsIx

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NgxfkMYOB4rDPdSstT35N+5uBG3n/UzjxHssi0svMfVETYYX40y57dm2eZQXFp8=

=iwsn

-----END PGP SIGNATURE-----

"""

        plain = """bazaar-ng testament short form 1

revision-id: amy@example.com-20110527185938-hluafawphszb8dl1

sha1: 6411f9bdf6571200357140c9ce7c0f50106ac9a4

"""

        my_gpg = gpg.GPGStrategy(FakeConfig())

        my_gpg.set_acceptable_keys("bazaar@example.com")

        self.assertEqual((gpg.SIGNATURE_VALID, None), my_gpg.verify(content,

                            plain))

    def test_verify_unacceptable_key(self):

        self.requireFeature(features.gpgme)

        self.import_keys()

        content = """-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

bazaar-ng testament short form 1

revision-id: amy@example.com-20110527185938-hluafawphszb8dl1

sha1: 6411f9bdf6571200357140c9ce7c0f50106ac9a4

-----BEGIN PGP SIGNATURE-----

Version: GnuPG v1.4.11 (GNU/Linux)

iQEcBAEBAgAGBQJN+ekFAAoJEIdoGx7jCA5FGtEH/i+XxJRvqU6wdBtLVrGBMAGk

FZ5VP+KyXYtymSbgSstj/vM12NeMIeFs3xGnNnYuX1MIcY6We5TKtCH0epY6ym5+

6g2Q2QpQ5/sT2d0mWzR0K4uVngmxVQaXTdk5PdZ40O7ULeDLW6CxzxMHyUL1rsIx

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NgxfkMYOB4rDPdSstT35N+5uBG3n/UzjxHssi0svMfVETYYX40y57dm2eZQXFp8=

=iwsn

-----END PGP SIGNATURE-----

"""

        plain = """bazaar-ng testament short form 1

revision-id: amy@example.com-20110527185938-hluafawphszb8dl1

sha1: 6411f9bdf6571200357140c9ce7c0f50106ac9a4

"""

        my_gpg = gpg.GPGStrategy(FakeConfig())

        my_gpg.set_acceptable_keys("foo@example.com")

        self.assertEqual((gpg.SIGNATURE_KEY_MISSING, u'E3080E45'),

                         my_gpg.verify(content, plain))

    def test_verify_valid_but_untrusted(self):

        self.requireFeature(features.gpgme)

        self.import_keys()

        content = """-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

bazaar-ng testament short form 1

revision-id: amy@example.com-20110527185938-hluafawphszb8dl1

sha1: 6411f9bdf6571200357140c9ce7c0f50106ac9a4

-----BEGIN PGP SIGNATURE-----

Version: GnuPG v1.4.11 (GNU/Linux)

iQEcBAEBAgAGBQJN+ekFAAoJEIdoGx7jCA5FGtEH/i+XxJRvqU6wdBtLVrGBMAGk

FZ5VP+KyXYtymSbgSstj/vM12NeMIeFs3xGnNnYuX1MIcY6We5TKtCH0epY6ym5+

6g2Q2QpQ5/sT2d0mWzR0K4uVngmxVQaXTdk5PdZ40O7ULeDLW6CxzxMHyUL1rsIx

7UBUTBh1O/1n3ZfD99hUkm3hVcnsN90uTKH59zV9NWwArU0cug60+5eDKJhSJDbG

rIwlqbFAjDZ7L/48e+IaYIJwBZFzMBpJKdCxzALLtauMf+KK8hGiL2hrRbWm7ty6

NgxfkMYOB4rDPdSstT35N+5uBG3n/UzjxHssi0svMfVETYYX40y57dm2eZQXFp8=

=iwsn

-----END PGP SIGNATURE-----

"""

        plain = """bazaar-ng testament short form 1

revision-id: amy@example.com-20110527185938-hluafawphszb8dl1

sha1: 6411f9bdf6571200357140c9ce7c0f50106ac9a4

"""

        my_gpg = gpg.GPGStrategy(FakeConfig())

        self.assertEqual((gpg.SIGNATURE_NOT_VALID, None), my_gpg.verify(content,

                            plain))

    def test_verify_bad_testament(self):

        self.requireFeature(features.gpgme)

        self.import_keys()

        content = """-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

bazaar-ng testament short form 1

revision-id: amy@example.com-20110527185938-hluafawphszb8dl1

sha1: 6411f9bdf6571200357140c9ce7c0f50106ac9a4

-----BEGIN PGP SIGNATURE-----

Version: GnuPG v1.4.11 (GNU/Linux)

iQEcBAEBAgAGBQJN+ekFAAoJEIdoGx7jCA5FGtEH/i+XxJRvqU6wdBtLVrGBMAGk

FZ5VP+KyXYtymSbgSstj/vM12NeMIeFs3xGnNnYuX1MIcY6We5TKtCH0epY6ym5+

6g2Q2QpQ5/sT2d0mWzR0K4uVngmxVQaXTdk5PdZ40O7ULeDLW6CxzxMHyUL1rsIx

7UBUTBh1O/1n3ZfD99hUkm3hVcnsN90uTKH59zV9NWwArU0cug60+5eDKJhSJDbG

rIwlqbFAjDZ7L/48e+IaYIJwBZFzMBpJKdCxzALLtauMf+KK8hGiL2hrRbWm7ty6

NgxfkMYOB4rDPdSstT35N+5uBG3n/UzjxHssi0svMfVETYYX40y57dm2eZQXFp8=

=iwsn

-----END PGP SIGNATURE-----

"""

        plain = """bazaar-ng testament short form 1

revision-id: doctor@example.com-20110527185938-hluafawphszb8dl1

sha1: 6411f9bdf6571200357140c9ce7c0f50106ac9a4

"""

        my_gpg = gpg.GPGStrategy(FakeConfig())

        my_gpg.set_acceptable_keys("bazaar@example.com")

        self.assertEqual((gpg.SIGNATURE_NOT_VALID, None), my_gpg.verify(content,

                            plain))

    def test_verify_revoked_signature(self):

        self.requireFeature(features.gpgme)

        self.import_keys()

        content = """-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

asdf

-----BEGIN PGP SIGNATURE-----

Version: GnuPG v1.4.11 (GNU/Linux)

iJwEAQECAAYFAk45V18ACgkQjs6dvEpb0cSIZQP/eOGTXGPlrNwvDkcX2d8O///I

ecB4sUIUEpv1XAk1MkNu58lsjjK72lRaLusEGqd7HwrFmpxVeVs0oWLg23PNPCFs

yJBID9ma+VxFVPtkEFnrc1R72sBJLfBcTxMkwVTC8eeznjdtn+cg+aLkxbPdrGnr

JFA6kUIJU2w9LU/b88Y=

=UuRX

-----END PGP SIGNATURE-----

"""

        plain = """asdf\n"""

        my_gpg = gpg.GPGStrategy(FakeConfig())

        my_gpg.set_acceptable_keys("test@example.com")

        self.assertEqual((gpg.SIGNATURE_NOT_VALID, None), my_gpg.verify(content,

                            plain))

    def test_verify_invalid(self):

        self.requireFeature(features.gpgme)

        content = """-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

bazaar-ng testament short form 1

revision-id: amy@example.com-20110527185938-hluafawphszb8dl1

sha1: 6411f9bdf6571200357140c9ce7c0f50106ac9a4

-----BEGIN PGP SIGNATURE-----

Version: GnuPG v1.4.11 (GNU/Linux)

iEYEARECAAYFAk33gYsACgkQpQbm1N1NUIhiDACglOuQDlnSF4NxfHSkN/zrmFy8

nswAoNGXAVuR9ONasAKIGBNUE0b+lols

=SOuC

-----END PGP SIGNATURE-----

"""

        plain = """bazaar-ng testament short form 1

revision-id: amy@example.com-20110527185938-hluafawphszb8dl1

sha1: 6411f9bdf6571200357140c9ce7c0f50106ac9a4

"""

        my_gpg = gpg.GPGStrategy(FakeConfig())

        self.assertEqual((gpg.SIGNATURE_NOT_VALID, None),

                            my_gpg.verify(content, plain))

    def test_verify_expired_but_valid(self):

        self.requireFeature(features.gpgme)

        content = """-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

bazaar-ng testament short form 1

revision-id: test@example.com-20110801100657-f1dr1nompeex723z

sha1: 59ab434be4c2d5d646dee84f514aa09e1b72feeb

-----BEGIN PGP SIGNATURE-----

Version: GnuPG v1.4.10 (GNU/Linux)

iJwEAQECAAYFAk42esUACgkQHOJve0+NFRPc5wP7BoZkzBU8JaHMLv/LmqLr0sUz

zuE51ofZZ19L7KVtQWsOi4jFy0fi4A5TFwO8u9SOfoREGvkw292Uty9subSouK5/

mFmDOYPQ+O83zWgYZsBmMJWYDZ+X9I6XXZSbPtV/7XyTjaxtl5uRnDVJjg+AzKvD

dTp8VatVVrwuvzOPDVc=

=uHen

-----END PGP SIGNATURE-----

"""

        plain = """bazaar-ng testament short form 1

revision-id: test@example.com-20110801100657-f1dr1nompeex723z

sha1: 59ab434be4c2d5d646dee84f514aa09e1b72feeb

"""

        my_gpg = gpg.GPGStrategy(FakeConfig())

        self.assertEqual((gpg.SIGNATURE_EXPIRED, u'4F8D1513'),

                            my_gpg.verify(content, plain))

    def test_verify_unknown_key(self):

        self.requireFeature(features.gpgme)

        content = """-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

asdf

-----BEGIN PGP SIGNATURE-----

Version: GnuPG v1.4.11 (GNU/Linux)

iQEcBAEBAgAGBQJOORKwAAoJENf6AkFdUeVvJDYH/1Cz+AJn1Jvy5n64o+0fZ5Ow

Y7UQb4QQTIOV7jI7n4hv/yBzuHrtImFzYvQl/o2Ezzi8B8L5gZtQy+xCUF+Q8iWs

gytZ5JUtSze7hDZo1NUl4etjoRGYqRfrUcvE2LkVH2dFbDGyyQfVmoeSHa5akuuP

QZmyg2F983rACVIpGvsqTH6RcBdvE9vx68lugeKQA8ArDn39/74FBFipFzrXSPij

eKFpl+yZmIb3g6HkPIC8o4j/tMvc37xF1OG5sBu8FT0+FC+VgY7vAblneDftAbyP

sIODx4WcfJtjLG/qkRYqJ4gDHo0eMpTJSk2CWebajdm4b+JBrM1F9mgKuZFLruE=

=RNR5

-----END PGP SIGNATURE-----

"""

        plain = "asdf\n"

        my_gpg = gpg.GPGStrategy(FakeConfig())

        self.assertEqual((gpg.SIGNATURE_KEY_MISSING, u'5D51E56F'),

                            my_gpg.verify(content, plain))

    def test_set_acceptable_keys(self):

        self.requireFeature(features.gpgme)

        self.import_keys()

        my_gpg = gpg.GPGStrategy(FakeConfig())

        my_gpg.set_acceptable_keys("bazaar@example.com")

        self.assertEqual(my_gpg.acceptable_keys,

                         [u'B5DEED5FCB15DAE6ECEF919587681B1EE3080E45'])

    def test_set_acceptable_keys_unknown(self):

        self.requireFeature(features.gpgme)

        my_gpg = gpg.GPGStrategy(FakeConfig())

        my_gpg.set_acceptable_keys("unknown")

        self.assertEqual(my_gpg.acceptable_keys, [])

class TestDisabled(TestCase):

    def test_sign(self):

        self.assertRaises(errors.SigningFailed,

                          gpg.DisabledGPGStrategy(None).sign, 'content')

    def test_verify(self):

        self.assertRaises(errors.SignatureVerificationFailed,

                          gpg.DisabledGPGStrategy(None).verify, 'content',

                          'testament')