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  • Committer: Teddy Hogeborn
  • Date: 2019-04-09 19:33:36 UTC
  • Revision ID: teddy@recompile.se-20190409193336-6sddo74ybosqog38
http://bugs.debian.org/926641
Installation: Fix UMASK even if set by some other initramfs hook

* Makefile (install-client-nokey): Install initramfs-tools-conf-hook
               as "/usr/share/initramfs-tools/conf-hooks.d/zz-mandos".
* debian/mandos-client.dirs: Add
  "usr/share/initramfs-tools/conf-hooks.d".
* initramfs-tools-conf-hook: New.

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Lines of Context:
mandos-ctl
45
45
import io
46
46
import tempfile
47
47
import contextlib
48
 
import abc
49
48
 
50
 
import dbus as dbus_python
 
49
try:
 
50
    import pydbus
 
51
    import gi
 
52
    dbus_python = None
 
53
except ImportError:
 
54
    import dbus as dbus_python
 
55
    pydbus = None
 
56
    class gi(object):
 
57
        """Dummy gi module, for the tests"""
 
58
        class repository(object):
 
59
            class GLib(object):
 
60
                class Error(Exception):
 
61
                    pass
51
62
 
52
63
# Show warnings by default
53
64
if not sys.warnoptions:
82
93
    if options.debug:
83
94
        log.setLevel(logging.DEBUG)
84
95
 
85
 
    bus = dbus_python_adapter.CachingBus(dbus_python)
 
96
    if pydbus is not None:
 
97
        bus = pydbus_adapter.CachingBus(pydbus)
 
98
    else:
 
99
        bus = dbus_python_adapter.CachingBus(dbus_python)
86
100
 
87
101
    try:
88
102
        all_clients = bus.get_clients_and_properties()
557
571
                        for key, subval in value.items()}
558
572
            return value
559
573
 
 
574
        def set_client_property(self, objectpath, key, value):
 
575
            if key == "Secret":
 
576
                if not isinstance(value, bytes):
 
577
                    value = value.encode("utf-8")
 
578
                value = self.dbus_python.ByteArray(value)
 
579
            return self.set_property(self.busname, objectpath,
 
580
                                     self.client_interface, key,
 
581
                                     value)
560
582
 
561
583
    class SilenceLogger(object):
562
584
        "Simple context manager to silence a particular logger"
593
615
                return new_object
594
616
 
595
617
 
 
618
class pydbus_adapter(object):
 
619
    class SystemBus(dbus.MandosBus):
 
620
        def __init__(self, module=pydbus):
 
621
            self.pydbus = module
 
622
            self.bus = self.pydbus.SystemBus()
 
623
 
 
624
        @contextlib.contextmanager
 
625
        def convert_exception(self, exception_class=dbus.Error):
 
626
            try:
 
627
                yield
 
628
            except gi.repository.GLib.Error as e:
 
629
                # This does what "raise from" would do
 
630
                exc = exception_class(*e.args)
 
631
                exc.__cause__ = e
 
632
                raise exc
 
633
 
 
634
        def call_method(self, methodname, busname, objectpath,
 
635
                        interface, *args):
 
636
            proxy_object = self.get(busname, objectpath)
 
637
            log.debug("D-Bus: %s:%s:%s.%s(%s)", busname, objectpath,
 
638
                      interface, methodname,
 
639
                      ", ".join(repr(a) for a in args))
 
640
            method = getattr(proxy_object[interface], methodname)
 
641
            with self.convert_exception():
 
642
                return method(*args)
 
643
 
 
644
        def get(self, busname, objectpath):
 
645
            log.debug("D-Bus: Connect to: (busname=%r, path=%r)",
 
646
                      busname, objectpath)
 
647
            with self.convert_exception(dbus.ConnectFailed):
 
648
                if sys.version_info.major <= 2:
 
649
                    with warnings.catch_warnings():
 
650
                        warnings.filterwarnings(
 
651
                            "ignore", "", DeprecationWarning,
 
652
                            r"^xml\.etree\.ElementTree$")
 
653
                        return self.bus.get(busname, objectpath)
 
654
                else:
 
655
                    return self.bus.get(busname, objectpath)
 
656
 
 
657
        def set_property(self, busname, objectpath, interface, key,
 
658
                         value):
 
659
            proxy_object = self.get(busname, objectpath)
 
660
            log.debug("D-Bus: %s:%s:%s.Set(%r, %r, %r)", busname,
 
661
                      objectpath, self.properties_iface, interface,
 
662
                      key, value)
 
663
            setattr(proxy_object[interface], key, value)
 
664
 
 
665
    class CachingBus(SystemBus):
 
666
        """A caching layer for pydbus_adapter.SystemBus"""
 
667
        def __init__(self, *args, **kwargs):
 
668
            self.object_cache = {}
 
669
            super(pydbus_adapter.CachingBus,
 
670
                  self).__init__(*args, **kwargs)
 
671
        def get(self, busname, objectpath):
 
672
            try:
 
673
                return self.object_cache[(busname, objectpath)]
 
674
            except KeyError:
 
675
                new_object = (super(pydbus_adapter.CachingBus, self)
 
676
                              .get(busname, objectpath))
 
677
                self.object_cache[(busname, objectpath)]  = new_object
 
678
                return new_object
 
679
 
 
680
 
596
681
def commands_from_options(options):
597
682
 
598
683
    commands = list(options.commands)
1235
1320
                @staticmethod
1236
1321
                def get_object(busname, objectpath):
1237
1322
                    DBusObject = collections.namedtuple(
1238
 
                        "DBusObject", ("methodname",))
 
1323
                        "DBusObject", ("methodname", "Set"))
1239
1324
                    def method(*args, **kwargs):
1240
1325
                        self.assertEqual({"dbus_interface":
1241
1326
                                          "interface"},
1242
1327
                                         kwargs)
1243
1328
                        return func(*args)
1244
 
                    return DBusObject(methodname=method)
 
1329
                    def set_property(interface, key, value,
 
1330
                                     dbus_interface=None):
 
1331
                        self.assertEqual(
 
1332
                            "org.freedesktop.DBus.Properties",
 
1333
                            dbus_interface)
 
1334
                        self.assertEqual("Secret", key)
 
1335
                        return func(interface, key, value,
 
1336
                                    dbus_interface=dbus_interface)
 
1337
                    return DBusObject(methodname=method,
 
1338
                                      Set=set_property)
1245
1339
            class Boolean(object):
1246
1340
                def __init__(self, value):
1247
1341
                    self.value = bool(value)
1253
1347
                pass
1254
1348
            class Dictionary(dict):
1255
1349
                pass
 
1350
            class ByteArray(bytes):
 
1351
                pass
1256
1352
        return mock_dbus_python
1257
1353
 
1258
1354
    def call_method(self, bus, methodname, busname, objectpath,
1435
1531
        # Make sure the dbus logger was suppressed
1436
1532
        self.assertEqual(0, counting_handler.count)
1437
1533
 
 
1534
    def test_Set_Secret_sends_bytearray(self):
 
1535
        ret = [None]
 
1536
        def func(*args, **kwargs):
 
1537
            ret[0] = (args, kwargs)
 
1538
        mock_dbus_python = self.MockDBusPython_func(func)
 
1539
        bus = dbus_python_adapter.SystemBus(mock_dbus_python)
 
1540
        bus.set_client_property("objectpath", "Secret", "value")
 
1541
        expected_call = (("se.recompile.Mandos.Client", "Secret",
 
1542
                          mock_dbus_python.ByteArray(b"value")),
 
1543
                         {"dbus_interface":
 
1544
                          "org.freedesktop.DBus.Properties"})
 
1545
        self.assertEqual(expected_call, ret[0])
 
1546
        if sys.version_info.major == 2:
 
1547
            self.assertIsInstance(ret[0][0][-1],
 
1548
                                  mock_dbus_python.ByteArray)
 
1549
 
1438
1550
    def test_get_object_converts_to_correct_exception(self):
1439
1551
        bus = dbus_python_adapter.SystemBus(
1440
1552
            self.fake_dbus_python_raises_exception_on_connect)
1509
1621
        self.assertIs(obj1, obj1b)
1510
1622
 
1511
1623
 
 
1624
class Test_pydbus_adapter_SystemBus(TestCaseWithAssertLogs):
 
1625
 
 
1626
    def Stub_pydbus_func(self, func):
 
1627
        class stub_pydbus(object):
 
1628
            """stub pydbus module"""
 
1629
            class SystemBus(object):
 
1630
                @staticmethod
 
1631
                def get(busname, objectpath):
 
1632
                    DBusObject = collections.namedtuple(
 
1633
                        "DBusObject", ("methodname",))
 
1634
                    return {"interface":
 
1635
                            DBusObject(methodname=func)}
 
1636
        return stub_pydbus
 
1637
 
 
1638
    def call_method(self, bus, methodname, busname, objectpath,
 
1639
                    interface, *args):
 
1640
        with self.assertLogs(log, logging.DEBUG):
 
1641
            return bus.call_method(methodname, busname, objectpath,
 
1642
                                   interface, *args)
 
1643
 
 
1644
    def test_call_method_returns(self):
 
1645
        expected_method_return = Unique()
 
1646
        method_args = (Unique(), Unique())
 
1647
        def func(*args):
 
1648
            self.assertEqual(len(method_args), len(args))
 
1649
            for marg, arg in zip(method_args, args):
 
1650
                self.assertIs(marg, arg)
 
1651
            return expected_method_return
 
1652
        stub_pydbus = self.Stub_pydbus_func(func)
 
1653
        bus = pydbus_adapter.SystemBus(stub_pydbus)
 
1654
        ret = self.call_method(bus, "methodname", "busname",
 
1655
                               "objectpath", "interface",
 
1656
                               *method_args)
 
1657
        self.assertIs(ret, expected_method_return)
 
1658
 
 
1659
    def test_call_method_handles_exception(self):
 
1660
        dbus_logger = logging.getLogger("dbus.proxies")
 
1661
 
 
1662
        def func():
 
1663
            raise gi.repository.GLib.Error()
 
1664
 
 
1665
        stub_pydbus = self.Stub_pydbus_func(func)
 
1666
        bus = pydbus_adapter.SystemBus(stub_pydbus)
 
1667
 
 
1668
        with self.assertRaises(dbus.Error) as e:
 
1669
            self.call_method(bus, "methodname", "busname",
 
1670
                             "objectpath", "interface")
 
1671
 
 
1672
        self.assertNotIsInstance(e, dbus.ConnectFailed)
 
1673
 
 
1674
    def test_get_converts_to_correct_exception(self):
 
1675
        bus = pydbus_adapter.SystemBus(
 
1676
            self.fake_pydbus_raises_exception_on_connect)
 
1677
        with self.assertRaises(dbus.ConnectFailed):
 
1678
            self.call_method(bus, "methodname", "busname",
 
1679
                             "objectpath", "interface")
 
1680
 
 
1681
    class fake_pydbus_raises_exception_on_connect(object):
 
1682
        """fake dbus-python module"""
 
1683
        @classmethod
 
1684
        def SystemBus(cls):
 
1685
            def get(busname, objectpath):
 
1686
                raise gi.repository.GLib.Error()
 
1687
            Bus = collections.namedtuple("Bus", ["get"])
 
1688
            return Bus(get=get)
 
1689
 
 
1690
    def test_set_property_uses_setattr(self):
 
1691
        class Object(object):
 
1692
            pass
 
1693
        obj = Object()
 
1694
        class pydbus_spy(object):
 
1695
            class SystemBus(object):
 
1696
                @staticmethod
 
1697
                def get(busname, objectpath):
 
1698
                    return {"interface": obj}
 
1699
        bus = pydbus_adapter.SystemBus(pydbus_spy)
 
1700
        value = Unique()
 
1701
        bus.set_property("busname", "objectpath", "interface", "key",
 
1702
                         value)
 
1703
        self.assertIs(value, obj.key)
 
1704
 
 
1705
    def test_get_suppresses_xml_deprecation_warning(self):
 
1706
        if sys.version_info.major >= 3:
 
1707
            return
 
1708
        class stub_pydbus_get(object):
 
1709
            class SystemBus(object):
 
1710
                @staticmethod
 
1711
                def get(busname, objectpath):
 
1712
                    warnings.warn_explicit(
 
1713
                        "deprecated", DeprecationWarning,
 
1714
                        "xml.etree.ElementTree", 0)
 
1715
        bus = pydbus_adapter.SystemBus(stub_pydbus_get)
 
1716
        with warnings.catch_warnings(record=True) as w:
 
1717
            warnings.simplefilter("always")
 
1718
            bus.get("busname", "objectpath")
 
1719
            self.assertEqual(0, len(w))
 
1720
 
 
1721
 
 
1722
class Test_pydbus_adapter_CachingBus(unittest.TestCase):
 
1723
    class stub_pydbus(object):
 
1724
        """stub pydbus module"""
 
1725
        class SystemBus(object):
 
1726
            @staticmethod
 
1727
            def get(busname, objectpath):
 
1728
                return Unique()
 
1729
 
 
1730
    def setUp(self):
 
1731
        self.bus = pydbus_adapter.CachingBus(self.stub_pydbus)
 
1732
 
 
1733
    def test_returns_distinct_objectpaths(self):
 
1734
        obj1 = self.bus.get("busname", "objectpath1")
 
1735
        self.assertIsInstance(obj1, Unique)
 
1736
        obj2 = self.bus.get("busname", "objectpath2")
 
1737
        self.assertIsInstance(obj2, Unique)
 
1738
        self.assertIsNot(obj1, obj2)
 
1739
 
 
1740
    def test_returns_distinct_busnames(self):
 
1741
        obj1 = self.bus.get("busname1", "objectpath")
 
1742
        self.assertIsInstance(obj1, Unique)
 
1743
        obj2 = self.bus.get("busname2", "objectpath")
 
1744
        self.assertIsInstance(obj2, Unique)
 
1745
        self.assertIsNot(obj1, obj2)
 
1746
 
 
1747
    def test_returns_distinct_both(self):
 
1748
        obj1 = self.bus.get("busname1", "objectpath")
 
1749
        self.assertIsInstance(obj1, Unique)
 
1750
        obj2 = self.bus.get("busname2", "objectpath")
 
1751
        self.assertIsInstance(obj2, Unique)
 
1752
        self.assertIsNot(obj1, obj2)
 
1753
 
 
1754
    def test_returns_same(self):
 
1755
        obj1 = self.bus.get("busname", "objectpath")
 
1756
        self.assertIsInstance(obj1, Unique)
 
1757
        obj2 = self.bus.get("busname", "objectpath")
 
1758
        self.assertIsInstance(obj2, Unique)
 
1759
        self.assertIs(obj1, obj2)
 
1760
 
 
1761
    def test_returns_same_old(self):
 
1762
        obj1 = self.bus.get("busname1", "objectpath1")
 
1763
        self.assertIsInstance(obj1, Unique)
 
1764
        obj2 = self.bus.get("busname2", "objectpath2")
 
1765
        self.assertIsInstance(obj2, Unique)
 
1766
        obj1b = self.bus.get("busname1", "objectpath1")
 
1767
        self.assertIsInstance(obj1b, Unique)
 
1768
        self.assertIsNot(obj1, obj2)
 
1769
        self.assertIsNot(obj2, obj1b)
 
1770
        self.assertIs(obj1, obj1b)
 
1771
 
 
1772
 
1512
1773
class Test_commands_from_options(unittest.TestCase):
1513
1774
 
1514
1775
    def setUp(self):