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- Committer: Teddy Hogeborn
- Date: 2019-08-10 15:19:47 UTC
- Revision ID: teddy@recompile.se-20190810151947-wyw7cetrh1pvtw37
Simplification of Python 3 compatibility code
Normally, "class Foo:" in Python 2 creates a "classic" class, but in
Python 3, all classes are "new-style" classes, which you can get in
Python 2 by doing "class Foo(object):", i.e. inheriting from "object".
But, you can also get a new-style classes from "class Foo:" in Python
2 by setting the global "__metaclass__" variable to "type", which
makes the code less cluttered. Note: it is still necessary to inherit
from "object" in Python 2 to get a new-style class if the class is
otherwise inheriting only from "classic" classes.
* mandos: Set "__metaclass__ = type" globally for Python 2, and remove
inheriting from "object" in all places possible.
* mandos-ctl: - '' -
Normally, "class Foo:" in Python 2 creates a "classic" class, but in
Python 3, all classes are "new-style" classes, which you can get in
Python 2 by doing "class Foo(object):", i.e. inheriting from "object".
But, you can also get a new-style classes from "class Foo:" in Python
2 by setting the global "__metaclass__" variable to "type", which
makes the code less cluttered. Note: it is still necessary to inherit
from "object" in Python 2 to get a new-style class if the class is
otherwise inheriting only from "classic" classes.
* mandos: Set "__metaclass__ = type" globally for Python 2, and remove
inheriting from "object" in all places possible.
* mandos-ctl: - '' -
- files removed:
- debian/po/de.po
- files modified:
- .bzrignore
added
removed
mandos-ctl
1
#!/usr/bin/python3 -bbI
1
#!/usr/bin/python
2
2
# -*- after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
3
#
4
# Mandos Control - Control or query the Mandos server
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
#
6
6
# Copyright © 2008-2019 Teddy Hogeborn
7
7
# Copyright © 2008-2019 Björn Påhlsson
48
48
49
49
if sys.version_info.major == 2:
50
50
__metaclass__ = type
51
str = unicode
52
53
class gi:
54
"""Dummy gi module, for the tests"""
55
class repository:
56
class GLib:
57
class Error(Exception):
58
pass
59
dbussy = None
60
ravel = None
61
dbus_python = None
62
pydbus = None
63
51
64
52
try:
65
import dbussy
66
import ravel
53
import pydbus
54
import gi
55
dbus_python = None
67
56
except ImportError:
68
try:
69
import pydbus
70
import gi
71
except ImportError:
72
import dbus as dbus_python
73
57
import dbus as dbus_python
58
pydbus = None
59
class gi:
60
"""Dummy gi module, for the tests"""
61
class repository:
62
class GLib:
63
class Error(Exception):
64
pass
74
65
75
66
# Show warnings by default
76
67
if not sys.warnoptions:
84
75
logging.captureWarnings(True) # Show warnings via the logging system
85
76
86
77
if sys.version_info.major == 2:
78
str = unicode
87
79
import StringIO
88
80
io.StringIO = StringIO.StringIO
89
81
90
82
locale.setlocale(locale.LC_ALL, "")
91
83
92
version = "1.8.11"
84
version = "1.8.7"
93
85
94
86
95
87
def main():
104
96
if options.debug:
105
97
log.setLevel(logging.DEBUG)
106
98
107
if dbussy is not None and ravel is not None:
108
bus = dbussy_adapter.CachingBus(dbussy, ravel)
109
elif pydbus is not None:
99
if pydbus is not None:
110
100
bus = pydbus_adapter.CachingBus(pydbus)
111
101
else:
112
102
bus = dbus_python_adapter.CachingBus(dbus_python)
497
487
self.properties_iface, interface, key,
498
488
value)
499
489
500
def call_method(self, methodname, busname, objectpath,
501
interface, *args):
502
raise NotImplementedError()
503
504
490
505
491
class MandosBus(SystemBus):
506
492
busname_domain = "se.recompile"
696
682
return new_object
697
683
698
684
699
class dbussy_adapter:
700
class SystemBus(dbus.SystemBus):
701
"""Use DBussy"""
702
703
def __init__(self, dbussy, ravel):
704
self.dbussy = dbussy
705
self.ravel = ravel
706
self.bus = ravel.system_bus()
707
708
@contextlib.contextmanager
709
def convert_exception(self, exception_class=dbus.Error):
710
try:
711
yield
712
except self.dbussy.DBusError as e:
713
# This does what "raise from" would do
714
exc = exception_class(*e.args)
715
exc.__cause__ = e
716
raise exc
717
718
def call_method(self, methodname, busname, objectpath,
719
interface, *args):
720
proxy_object = self.get_object(busname, objectpath)
721
log.debug("D-Bus: %s:%s:%s.%s(%s)", busname, objectpath,
722
interface, methodname,
723
", ".join(repr(a) for a in args))
724
iface = proxy_object.get_interface(interface)
725
method = getattr(iface, methodname)
726
with self.convert_exception(dbus.Error):
727
value = method(*args)
728
# DBussy returns values either as an empty list or as a
729
# list of one element with the return value
730
if value:
731
return self.type_filter(value[0])
732
733
def get_object(self, busname, objectpath):
734
log.debug("D-Bus: Connect to: (busname=%r, path=%r)",
735
busname, objectpath)
736
with self.convert_exception(dbus.ConnectFailed):
737
return self.bus[busname][objectpath]
738
739
def type_filter(self, value):
740
"""Convert the most bothersome types to Python types"""
741
# A D-Bus Variant value is represented as the Python type
742
# Tuple[dbussy.DBUS.Signature, Any]
743
if isinstance(value, tuple):
744
if (len(value) == 2
745
and isinstance(value[0],
746
self.dbussy.DBUS.Signature)):
747
return self.type_filter(value[1])
748
elif isinstance(value, self.dbussy.DBUS.ObjectPath):
749
return str(value)
750
# Also recurse into dictionaries
751
elif isinstance(value, dict):
752
return {self.type_filter(key):
753
self.type_filter(subval)
754
for key, subval in value.items()}
755
return value
756
757
def set_property(self, busname, objectpath, interface, key,
758
value):
759
proxy_object = self.get_object(busname, objectpath)
760
log.debug("D-Bus: %s:%s:%s.Set(%r, %r, %r)", busname,
761
objectpath, self.properties_iface, interface,
762
key, value)
763
if key == "Secret":
764
# DBussy wants a Byte Array to be a sequence of
765
# values, not a byte string
766
value = tuple(value)
767
setattr(proxy_object.get_interface(interface), key, value)
768
769
class MandosBus(SystemBus, dbus.MandosBus):
770
pass
771
772
class CachingBus(MandosBus):
773
"""A caching layer for dbussy_adapter.MandosBus"""
774
def __init__(self, *args, **kwargs):
775
self.object_cache = {}
776
super(dbussy_adapter.CachingBus, self).__init__(*args,
777
**kwargs)
778
def get_object(self, busname, objectpath):
779
try:
780
return self.object_cache[(busname, objectpath)]
781
except KeyError:
782
new_object = super(
783
dbussy_adapter.CachingBus,
784
self).get_object(busname, objectpath)
785
self.object_cache[(busname, objectpath)] = new_object
786
return new_object
787
788
789
685
def commands_from_options(options):
790
686
791
687
commands = list(options.commands)
1634
1530
finally:
1635
1531
dbus_logger.removeFilter(counting_handler)
1636
1532
1637
self.assertNotIsInstance(e.exception, dbus.ConnectFailed)
1533
self.assertNotIsInstance(e, dbus.ConnectFailed)
1638
1534
1639
1535
# Make sure the dbus logger was suppressed
1640
1536
self.assertEqual(0, counting_handler.count)
1777
1673
self.call_method(bus, "methodname", "busname",
1778
1674
"objectpath", "interface")
1779
1675
1780
self.assertNotIsInstance(e.exception, dbus.ConnectFailed)
1676
self.assertNotIsInstance(e, dbus.ConnectFailed)
1781
1677
1782
1678
def test_get_converts_to_correct_exception(self):
1783
1679
bus = pydbus_adapter.SystemBus(
1878
1774
self.assertIs(obj1, obj1b)
1879
1775
1880
1776
1881
class Test_dbussy_adapter_SystemBus(TestCaseWithAssertLogs):
1882
1883
class dummy_dbussy:
1884
class DBUS:
1885
class ObjectPath(str):
1886
pass
1887
class DBusError(Exception):
1888
pass
1889
1890
def fake_ravel_func(self, func):
1891
class fake_ravel:
1892
@staticmethod
1893
def system_bus():
1894
class DBusInterfaceProxy:
1895
@staticmethod
1896
def methodname(*args):
1897
return [func(*args)]
1898
class DBusObject:
1899
@staticmethod
1900
def get_interface(interface):
1901
if interface == "interface":
1902
return DBusInterfaceProxy()
1903
return {"busname": {"objectpath": DBusObject()}}
1904
return fake_ravel
1905
1906
def call_method(self, bus, methodname, busname, objectpath,
1907
interface, *args):
1908
with self.assertLogs(log, logging.DEBUG):
1909
return bus.call_method(methodname, busname, objectpath,
1910
interface, *args)
1911
1912
def test_call_method_returns(self):
1913
expected_method_return = Unique()
1914
method_args = (Unique(), Unique())
1915
def func(*args):
1916
self.assertEqual(len(method_args), len(args))
1917
for marg, arg in zip(method_args, args):
1918
self.assertIs(marg, arg)
1919
return expected_method_return
1920
fake_ravel = self.fake_ravel_func(func)
1921
bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
1922
ret = self.call_method(bus, "methodname", "busname",
1923
"objectpath", "interface",
1924
*method_args)
1925
self.assertIs(ret, expected_method_return)
1926
1927
def test_call_method_filters_objectpath(self):
1928
def func():
1929
return method_return
1930
fake_ravel = self.fake_ravel_func(func)
1931
bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
1932
method_return = (self.dummy_dbussy.DBUS
1933
.ObjectPath("objectpath"))
1934
ret = self.call_method(bus, "methodname", "busname",
1935
"objectpath", "interface")
1936
self.assertEqual("objectpath", ret)
1937
self.assertNotIsInstance(ret,
1938
self.dummy_dbussy.DBUS.ObjectPath)
1939
1940
def test_call_method_filters_objectpaths_in_dict(self):
1941
ObjectPath = self.dummy_dbussy.DBUS.ObjectPath
1942
def func():
1943
return method_return
1944
fake_ravel = self.fake_ravel_func(func)
1945
bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
1946
method_return = {
1947
ObjectPath("objectpath_key_1"):
1948
ObjectPath("objectpath_value_1"),
1949
ObjectPath("objectpath_key_2"):
1950
ObjectPath("objectpath_value_2"),
1951
}
1952
ret = self.call_method(bus, "methodname", "busname",
1953
"objectpath", "interface")
1954
expected_method_return = {str(key): str(value)
1955
for key, value in
1956
method_return.items()}
1957
for key, value in ret.items():
1958
self.assertNotIsInstance(key, ObjectPath)
1959
self.assertNotIsInstance(value, ObjectPath)
1960
self.assertEqual(expected_method_return, ret)
1961
self.assertIsInstance(ret, dict)
1962
1963
def test_call_method_filters_objectpaths_in_dict_in_dict(self):
1964
ObjectPath = self.dummy_dbussy.DBUS.ObjectPath
1965
def func():
1966
return method_return
1967
fake_ravel = self.fake_ravel_func(func)
1968
bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
1969
method_return = {
1970
ObjectPath("key1"): {
1971
ObjectPath("key11"): ObjectPath("value11"),
1972
ObjectPath("key12"): ObjectPath("value12"),
1973
},
1974
ObjectPath("key2"): {
1975
ObjectPath("key21"): ObjectPath("value21"),
1976
ObjectPath("key22"): ObjectPath("value22"),
1977
},
1978
}
1979
ret = self.call_method(bus, "methodname", "busname",
1980
"objectpath", "interface")
1981
expected_method_return = {
1982
"key1": {"key11": "value11",
1983
"key12": "value12"},
1984
"key2": {"key21": "value21",
1985
"key22": "value22"},
1986
}
1987
self.assertEqual(expected_method_return, ret)
1988
for key, value in ret.items():
1989
self.assertIsInstance(value, dict)
1990
self.assertEqual(expected_method_return[key], value)
1991
self.assertNotIsInstance(key, ObjectPath)
1992
for inner_key, inner_value in value.items():
1993
self.assertIsInstance(value, dict)
1994
self.assertEqual(
1995
expected_method_return[key][inner_key],
1996
inner_value)
1997
self.assertNotIsInstance(key, ObjectPath)
1998
1999
def test_call_method_filters_objectpaths_in_dict_three_deep(self):
2000
ObjectPath = self.dummy_dbussy.DBUS.ObjectPath
2001
def func():
2002
return method_return
2003
fake_ravel = self.fake_ravel_func(func)
2004
bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
2005
method_return = {
2006
ObjectPath("key1"): {
2007
ObjectPath("key2"): {
2008
ObjectPath("key3"): ObjectPath("value"),
2009
},
2010
},
2011
}
2012
ret = self.call_method(bus, "methodname", "busname",
2013
"objectpath", "interface")
2014
expected_method_return = {"key1": {"key2": {"key3": "value"}}}
2015
self.assertEqual(expected_method_return, ret)
2016
self.assertIsInstance(ret, dict)
2017
self.assertNotIsInstance(next(iter(ret.keys())), ObjectPath)
2018
self.assertIsInstance(ret["key1"], dict)
2019
self.assertNotIsInstance(next(iter(ret["key1"].keys())),
2020
ObjectPath)
2021
self.assertIsInstance(ret["key1"]["key2"], dict)
2022
self.assertNotIsInstance(
2023
next(iter(ret["key1"]["key2"].keys())),
2024
ObjectPath)
2025
self.assertEqual("value", ret["key1"]["key2"]["key3"])
2026
self.assertNotIsInstance(ret["key1"]["key2"]["key3"],
2027
self.dummy_dbussy.DBUS.ObjectPath)
2028
2029
def test_call_method_handles_exception(self):
2030
def func():
2031
raise self.dummy_dbussy.DBusError()
2032
2033
fake_ravel = self.fake_ravel_func(func)
2034
bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
2035
2036
with self.assertRaises(dbus.Error) as e:
2037
self.call_method(bus, "methodname", "busname",
2038
"objectpath", "interface")
2039
2040
self.assertNotIsInstance(e.exception, dbus.ConnectFailed)
2041
2042
def test_get_object_converts_to_correct_exception(self):
2043
class fake_ravel_raises_exception_on_connect:
2044
@staticmethod
2045
def system_bus():
2046
class Bus:
2047
@staticmethod
2048
def __getitem__(key):
2049
if key == "objectpath":
2050
raise self.dummy_dbussy.DBusError()
2051
raise Exception(key)
2052
return {"busname": Bus()}
2053
def func():
2054
raise self.dummy_dbussy.DBusError()
2055
bus = dbussy_adapter.SystemBus(
2056
self.dummy_dbussy,
2057
fake_ravel_raises_exception_on_connect)
2058
with self.assertRaises(dbus.ConnectFailed):
2059
self.call_method(bus, "methodname", "busname",
2060
"objectpath", "interface")
2061
2062
2063
1777
class Test_commands_from_options(unittest.TestCase):
2064
1778
2065
1779
def setUp(self):
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0