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  • Committer: Teddy Hogeborn
  • Date: 2012-05-26 22:56:38 UTC
  • mfrom: (589.1.1 socket-option)
  • Revision ID: teddy@recompile.se-20120526225638-4hvqyrvmj0036lfn
Merge "--socket" option for server.

This is suggested by the GNU Coding Standards' Table of Long Options,
and will probably also allow socket activation (e.g. by systemd(8)).

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Lines of Context:
1
 
#!/usr/bin/python3 -bI
2
 
# -*- mode: python; 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
 
#
 
1
#!/usr/bin/python
 
2
# -*- mode: python; coding: utf-8 -*-
 
3
4
4
# Mandos server - give out binary blobs to connecting clients.
5
 
#
 
5
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>.  This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
 
#
 
12
13
13
# Everything else is
14
 
# Copyright © 2008-2020 Teddy Hogeborn
15
 
# Copyright © 2008-2020 Björn Påhlsson
16
 
#
17
 
# This file is part of Mandos.
18
 
#
19
 
# Mandos is free software: you can redistribute it and/or modify it
20
 
# under the terms of the GNU General Public License as published by
 
14
# Copyright © 2008-2012 Teddy Hogeborn
 
15
# Copyright © 2008-2012 Björn Påhlsson
 
16
 
17
# This program is free software: you can redistribute it and/or modify
 
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
 
#     Mandos is distributed in the hope that it will be useful, but
25
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
22
#     This program is distributed in the hope that it will be useful,
 
23
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
27
25
#     GNU General Public License for more details.
28
 
#
 
26
29
27
# You should have received a copy of the GNU General Public License
30
 
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
31
 
#
 
28
# along with this program.  If not, see
 
29
# <http://www.gnu.org/licenses/>.
 
30
32
31
# Contact the authors at <mandos@recompile.se>.
33
 
#
 
32
34
33
 
35
34
from __future__ import (division, absolute_import, print_function,
36
35
                        unicode_literals)
37
36
 
38
 
try:
39
 
    from future_builtins import *
40
 
except ImportError:
41
 
    pass
 
37
from future_builtins import *
42
38
 
43
 
try:
44
 
    import SocketServer as socketserver
45
 
except ImportError:
46
 
    import socketserver
 
39
import SocketServer as socketserver
47
40
import socket
48
41
import argparse
49
42
import datetime
50
43
import errno
51
 
try:
52
 
    import ConfigParser as configparser
53
 
except ImportError:
54
 
    import configparser
 
44
import gnutls.crypto
 
45
import gnutls.connection
 
46
import gnutls.errors
 
47
import gnutls.library.functions
 
48
import gnutls.library.constants
 
49
import gnutls.library.types
 
50
import ConfigParser as configparser
55
51
import sys
56
52
import re
57
53
import os
66
62
import struct
67
63
import fcntl
68
64
import functools
69
 
try:
70
 
    import cPickle as pickle
71
 
except ImportError:
72
 
    import pickle
 
65
import cPickle as pickle
73
66
import multiprocessing
74
67
import types
75
68
import binascii
76
69
import tempfile
77
70
import itertools
78
 
import collections
79
 
import codecs
80
 
import unittest
81
 
import random
82
 
import shlex
83
71
 
84
72
import dbus
85
73
import dbus.service
86
 
import gi
87
 
from gi.repository import GLib
 
74
import gobject
 
75
import avahi
88
76
from dbus.mainloop.glib import DBusGMainLoop
89
77
import ctypes
90
78
import ctypes.util
91
79
import xml.dom.minidom
92
80
import inspect
93
 
 
94
 
if sys.version_info.major == 2:
95
 
    __metaclass__ = type
96
 
    str = unicode
97
 
 
98
 
# Add collections.abc.Callable if it does not exist
99
 
try:
100
 
    collections.abc.Callable
101
 
except AttributeError:
102
 
    class abc:
103
 
        Callable = collections.Callable
104
 
    collections.abc = abc
105
 
    del abc
106
 
 
107
 
# Add shlex.quote if it does not exist
108
 
try:
109
 
    shlex.quote
110
 
except AttributeError:
111
 
    shlex.quote = re.escape
112
 
 
113
 
# Show warnings by default
114
 
if not sys.warnoptions:
115
 
    import warnings
116
 
    warnings.simplefilter("default")
117
 
 
118
 
# Try to find the value of SO_BINDTODEVICE:
119
 
try:
120
 
    # This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
 
    # newer, and it is also the most natural place for it:
 
81
import GnuPGInterface
 
82
 
 
83
try:
122
84
    SO_BINDTODEVICE = socket.SO_BINDTODEVICE
123
85
except AttributeError:
124
86
    try:
125
 
        # This is where SO_BINDTODEVICE was up to and including Python
126
 
        # 2.6, and also 3.2:
127
87
        from IN import SO_BINDTODEVICE
128
88
    except ImportError:
129
 
        # In Python 2.7 it seems to have been removed entirely.
130
 
        # Try running the C preprocessor:
131
 
        try:
132
 
            cc = subprocess.Popen(["cc", "--language=c", "-E",
133
 
                                   "/dev/stdin"],
134
 
                                  stdin=subprocess.PIPE,
135
 
                                  stdout=subprocess.PIPE)
136
 
            stdout = cc.communicate(
137
 
                "#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
 
            SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
 
        except (OSError, ValueError, IndexError):
140
 
            # No value found
141
 
            SO_BINDTODEVICE = None
142
 
 
143
 
if sys.version_info < (3, 2):
144
 
    configparser.Configparser = configparser.SafeConfigParser
145
 
 
146
 
version = "1.8.14"
 
89
        SO_BINDTODEVICE = None
 
90
 
 
91
version = "1.5.4"
147
92
stored_state_file = "clients.pickle"
148
93
 
149
94
logger = logging.getLogger()
150
 
logging.captureWarnings(True)   # Show warnings via the logging system
151
 
syslogger = None
 
95
syslogger = (logging.handlers.SysLogHandler
 
96
             (facility = logging.handlers.SysLogHandler.LOG_DAEMON,
 
97
              address = str("/dev/log")))
152
98
 
153
99
try:
154
 
    if_nametoindex = ctypes.cdll.LoadLibrary(
155
 
        ctypes.util.find_library("c")).if_nametoindex
 
100
    if_nametoindex = (ctypes.cdll.LoadLibrary
 
101
                      (ctypes.util.find_library("c"))
 
102
                      .if_nametoindex)
156
103
except (OSError, AttributeError):
157
 
 
158
104
    def if_nametoindex(interface):
159
105
        "Get an interface index the hard way, i.e. using fcntl()"
160
106
        SIOCGIFINDEX = 0x8933  # From /usr/include/linux/sockios.h
161
107
        with contextlib.closing(socket.socket()) as s:
162
108
            ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
163
 
                                struct.pack(b"16s16x", interface))
164
 
        interface_index = struct.unpack("I", ifreq[16:20])[0]
 
109
                                struct.pack(str("16s16x"),
 
110
                                            interface))
 
111
        interface_index = struct.unpack(str("I"),
 
112
                                        ifreq[16:20])[0]
165
113
        return interface_index
166
114
 
167
115
 
168
 
def copy_function(func):
169
 
    """Make a copy of a function"""
170
 
    if sys.version_info.major == 2:
171
 
        return types.FunctionType(func.func_code,
172
 
                                  func.func_globals,
173
 
                                  func.func_name,
174
 
                                  func.func_defaults,
175
 
                                  func.func_closure)
176
 
    else:
177
 
        return types.FunctionType(func.__code__,
178
 
                                  func.__globals__,
179
 
                                  func.__name__,
180
 
                                  func.__defaults__,
181
 
                                  func.__closure__)
182
 
 
183
 
 
184
116
def initlogger(debug, level=logging.WARNING):
185
117
    """init logger and add loglevel"""
186
 
 
187
 
    global syslogger
188
 
    syslogger = (logging.handlers.SysLogHandler(
189
 
        facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
 
        address="/dev/log"))
 
118
    
191
119
    syslogger.setFormatter(logging.Formatter
192
 
                           ("Mandos [%(process)d]: %(levelname)s:"
193
 
                            " %(message)s"))
 
120
                           ('Mandos [%(process)d]: %(levelname)s:'
 
121
                            ' %(message)s'))
194
122
    logger.addHandler(syslogger)
195
 
 
 
123
    
196
124
    if debug:
197
125
        console = logging.StreamHandler()
198
 
        console.setFormatter(logging.Formatter("%(asctime)s %(name)s"
199
 
                                               " [%(process)d]:"
200
 
                                               " %(levelname)s:"
201
 
                                               " %(message)s"))
 
126
        console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
 
127
                                               ' [%(process)d]:'
 
128
                                               ' %(levelname)s:'
 
129
                                               ' %(message)s'))
202
130
        logger.addHandler(console)
203
131
    logger.setLevel(level)
204
132
 
208
136
    pass
209
137
 
210
138
 
211
 
class PGPEngine:
 
139
class PGPEngine(object):
212
140
    """A simple class for OpenPGP symmetric encryption & decryption"""
213
 
 
214
141
    def __init__(self):
 
142
        self.gnupg = GnuPGInterface.GnuPG()
215
143
        self.tempdir = tempfile.mkdtemp(prefix="mandos-")
216
 
        self.gpg = "gpg"
217
 
        try:
218
 
            output = subprocess.check_output(["gpgconf"])
219
 
            for line in output.splitlines():
220
 
                name, text, path = line.split(b":")
221
 
                if name == b"gpg":
222
 
                    self.gpg = path
223
 
                    break
224
 
        except OSError as e:
225
 
            if e.errno != errno.ENOENT:
226
 
                raise
227
 
        self.gnupgargs = ["--batch",
228
 
                          "--homedir", self.tempdir,
229
 
                          "--force-mdc",
230
 
                          "--quiet"]
231
 
        # Only GPG version 1 has the --no-use-agent option.
232
 
        if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
 
            self.gnupgargs.append("--no-use-agent")
234
 
 
 
144
        self.gnupg = GnuPGInterface.GnuPG()
 
145
        self.gnupg.options.meta_interactive = False
 
146
        self.gnupg.options.homedir = self.tempdir
 
147
        self.gnupg.options.extra_args.extend(['--force-mdc',
 
148
                                              '--quiet',
 
149
                                              '--no-use-agent'])
 
150
    
235
151
    def __enter__(self):
236
152
        return self
237
 
 
 
153
    
238
154
    def __exit__(self, exc_type, exc_value, traceback):
239
155
        self._cleanup()
240
156
        return False
241
 
 
 
157
    
242
158
    def __del__(self):
243
159
        self._cleanup()
244
 
 
 
160
    
245
161
    def _cleanup(self):
246
162
        if self.tempdir is not None:
247
163
            # Delete contents of tempdir
248
164
            for root, dirs, files in os.walk(self.tempdir,
249
 
                                             topdown=False):
 
165
                                             topdown = False):
250
166
                for filename in files:
251
167
                    os.remove(os.path.join(root, filename))
252
168
                for dirname in dirs:
254
170
            # Remove tempdir
255
171
            os.rmdir(self.tempdir)
256
172
            self.tempdir = None
257
 
 
 
173
    
258
174
    def password_encode(self, password):
259
175
        # Passphrase can not be empty and can not contain newlines or
260
176
        # NUL bytes.  So we prefix it and hex encode it.
261
 
        encoded = b"mandos" + binascii.hexlify(password)
262
 
        if len(encoded) > 2048:
263
 
            # GnuPG can't handle long passwords, so encode differently
264
 
            encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
265
 
                       .replace(b"\n", b"\\n")
266
 
                       .replace(b"\0", b"\\x00"))
267
 
        return encoded
268
 
 
 
177
        return b"mandos" + binascii.hexlify(password)
 
178
    
269
179
    def encrypt(self, data, password):
270
 
        passphrase = self.password_encode(password)
271
 
        with tempfile.NamedTemporaryFile(
272
 
                dir=self.tempdir) as passfile:
273
 
            passfile.write(passphrase)
274
 
            passfile.flush()
275
 
            proc = subprocess.Popen([self.gpg, "--symmetric",
276
 
                                     "--passphrase-file",
277
 
                                     passfile.name]
278
 
                                    + self.gnupgargs,
279
 
                                    stdin=subprocess.PIPE,
280
 
                                    stdout=subprocess.PIPE,
281
 
                                    stderr=subprocess.PIPE)
282
 
            ciphertext, err = proc.communicate(input=data)
283
 
        if proc.returncode != 0:
284
 
            raise PGPError(err)
 
180
        self.gnupg.passphrase = self.password_encode(password)
 
181
        with open(os.devnull, "w") as devnull:
 
182
            try:
 
183
                proc = self.gnupg.run(['--symmetric'],
 
184
                                      create_fhs=['stdin', 'stdout'],
 
185
                                      attach_fhs={'stderr': devnull})
 
186
                with contextlib.closing(proc.handles['stdin']) as f:
 
187
                    f.write(data)
 
188
                with contextlib.closing(proc.handles['stdout']) as f:
 
189
                    ciphertext = f.read()
 
190
                proc.wait()
 
191
            except IOError as e:
 
192
                raise PGPError(e)
 
193
        self.gnupg.passphrase = None
285
194
        return ciphertext
286
 
 
 
195
    
287
196
    def decrypt(self, data, password):
288
 
        passphrase = self.password_encode(password)
289
 
        with tempfile.NamedTemporaryFile(
290
 
                dir=self.tempdir) as passfile:
291
 
            passfile.write(passphrase)
292
 
            passfile.flush()
293
 
            proc = subprocess.Popen([self.gpg, "--decrypt",
294
 
                                     "--passphrase-file",
295
 
                                     passfile.name]
296
 
                                    + self.gnupgargs,
297
 
                                    stdin=subprocess.PIPE,
298
 
                                    stdout=subprocess.PIPE,
299
 
                                    stderr=subprocess.PIPE)
300
 
            decrypted_plaintext, err = proc.communicate(input=data)
301
 
        if proc.returncode != 0:
302
 
            raise PGPError(err)
 
197
        self.gnupg.passphrase = self.password_encode(password)
 
198
        with open(os.devnull, "w") as devnull:
 
199
            try:
 
200
                proc = self.gnupg.run(['--decrypt'],
 
201
                                      create_fhs=['stdin', 'stdout'],
 
202
                                      attach_fhs={'stderr': devnull})
 
203
                with contextlib.closing(proc.handles['stdin']) as f:
 
204
                    f.write(data)
 
205
                with contextlib.closing(proc.handles['stdout']) as f:
 
206
                    decrypted_plaintext = f.read()
 
207
                proc.wait()
 
208
            except IOError as e:
 
209
                raise PGPError(e)
 
210
        self.gnupg.passphrase = None
303
211
        return decrypted_plaintext
304
212
 
305
213
 
306
 
# Pretend that we have an Avahi module
307
 
class avahi:
308
 
    """This isn't so much a class as it is a module-like namespace."""
309
 
    IF_UNSPEC = -1               # avahi-common/address.h
310
 
    PROTO_UNSPEC = -1            # avahi-common/address.h
311
 
    PROTO_INET = 0               # avahi-common/address.h
312
 
    PROTO_INET6 = 1              # avahi-common/address.h
313
 
    DBUS_NAME = "org.freedesktop.Avahi"
314
 
    DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
 
    DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
 
    DBUS_PATH_SERVER = "/"
317
 
 
318
 
    @staticmethod
319
 
    def string_array_to_txt_array(t):
320
 
        return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
 
                           for s in t), signature="ay")
322
 
    ENTRY_GROUP_ESTABLISHED = 2  # avahi-common/defs.h
323
 
    ENTRY_GROUP_COLLISION = 3    # avahi-common/defs.h
324
 
    ENTRY_GROUP_FAILURE = 4      # avahi-common/defs.h
325
 
    SERVER_INVALID = 0           # avahi-common/defs.h
326
 
    SERVER_REGISTERING = 1       # avahi-common/defs.h
327
 
    SERVER_RUNNING = 2           # avahi-common/defs.h
328
 
    SERVER_COLLISION = 3         # avahi-common/defs.h
329
 
    SERVER_FAILURE = 4           # avahi-common/defs.h
330
 
 
331
 
 
332
214
class AvahiError(Exception):
333
215
    def __init__(self, value, *args, **kwargs):
334
216
        self.value = value
335
 
        return super(AvahiError, self).__init__(value, *args,
336
 
                                                **kwargs)
337
 
 
 
217
        super(AvahiError, self).__init__(value, *args, **kwargs)
 
218
    def __unicode__(self):
 
219
        return unicode(repr(self.value))
338
220
 
339
221
class AvahiServiceError(AvahiError):
340
222
    pass
341
223
 
342
 
 
343
224
class AvahiGroupError(AvahiError):
344
225
    pass
345
226
 
346
227
 
347
 
class AvahiService:
 
228
class AvahiService(object):
348
229
    """An Avahi (Zeroconf) service.
349
 
 
 
230
    
350
231
    Attributes:
351
232
    interface: integer; avahi.IF_UNSPEC or an interface index.
352
233
               Used to optionally bind to the specified interface.
353
 
    name: string; Example: "Mandos"
354
 
    type: string; Example: "_mandos._tcp".
355
 
     See <https://www.iana.org/assignments/service-names-port-numbers>
 
234
    name: string; Example: 'Mandos'
 
235
    type: string; Example: '_mandos._tcp'.
 
236
                  See <http://www.dns-sd.org/ServiceTypes.html>
356
237
    port: integer; what port to announce
357
238
    TXT: list of strings; TXT record for the service
358
239
    domain: string; Domain to publish on, default to .local if empty.
364
245
    server: D-Bus Server
365
246
    bus: dbus.SystemBus()
366
247
    """
367
 
 
368
 
    def __init__(self,
369
 
                 interface=avahi.IF_UNSPEC,
370
 
                 name=None,
371
 
                 servicetype=None,
372
 
                 port=None,
373
 
                 TXT=None,
374
 
                 domain="",
375
 
                 host="",
376
 
                 max_renames=32768,
377
 
                 protocol=avahi.PROTO_UNSPEC,
378
 
                 bus=None):
 
248
    
 
249
    def __init__(self, interface = avahi.IF_UNSPEC, name = None,
 
250
                 servicetype = None, port = None, TXT = None,
 
251
                 domain = "", host = "", max_renames = 32768,
 
252
                 protocol = avahi.PROTO_UNSPEC, bus = None):
379
253
        self.interface = interface
380
254
        self.name = name
381
255
        self.type = servicetype
390
264
        self.server = None
391
265
        self.bus = bus
392
266
        self.entry_group_state_changed_match = None
393
 
 
394
 
    def rename(self, remove=True):
 
267
    
 
268
    def rename(self):
395
269
        """Derived from the Avahi example code"""
396
270
        if self.rename_count >= self.max_renames:
397
271
            logger.critical("No suitable Zeroconf service name found"
398
272
                            " after %i retries, exiting.",
399
273
                            self.rename_count)
400
274
            raise AvahiServiceError("Too many renames")
401
 
        self.name = str(
402
 
            self.server.GetAlternativeServiceName(self.name))
403
 
        self.rename_count += 1
 
275
        self.name = unicode(self.server
 
276
                            .GetAlternativeServiceName(self.name))
404
277
        logger.info("Changing Zeroconf service name to %r ...",
405
278
                    self.name)
406
 
        if remove:
407
 
            self.remove()
 
279
        self.remove()
408
280
        try:
409
281
            self.add()
410
282
        except dbus.exceptions.DBusException as error:
411
 
            if (error.get_dbus_name()
412
 
                == "org.freedesktop.Avahi.CollisionError"):
413
 
                logger.info("Local Zeroconf service name collision.")
414
 
                return self.rename(remove=False)
415
 
            else:
416
 
                logger.critical("D-Bus Exception", exc_info=error)
417
 
                self.cleanup()
418
 
                os._exit(1)
419
 
 
 
283
            logger.critical("D-Bus Exception", exc_info=error)
 
284
            self.cleanup()
 
285
            os._exit(1)
 
286
        self.rename_count += 1
 
287
    
420
288
    def remove(self):
421
289
        """Derived from the Avahi example code"""
422
290
        if self.entry_group_state_changed_match is not None:
424
292
            self.entry_group_state_changed_match = None
425
293
        if self.group is not None:
426
294
            self.group.Reset()
427
 
 
 
295
    
428
296
    def add(self):
429
297
        """Derived from the Avahi example code"""
430
298
        self.remove()
435
303
                avahi.DBUS_INTERFACE_ENTRY_GROUP)
436
304
        self.entry_group_state_changed_match = (
437
305
            self.group.connect_to_signal(
438
 
                "StateChanged", self.entry_group_state_changed))
 
306
                'StateChanged', self.entry_group_state_changed))
439
307
        logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
440
308
                     self.name, self.type)
441
309
        self.group.AddService(
447
315
            dbus.UInt16(self.port),
448
316
            avahi.string_array_to_txt_array(self.TXT))
449
317
        self.group.Commit()
450
 
 
 
318
    
451
319
    def entry_group_state_changed(self, state, error):
452
320
        """Derived from the Avahi example code"""
453
321
        logger.debug("Avahi entry group state change: %i", state)
454
 
 
 
322
        
455
323
        if state == avahi.ENTRY_GROUP_ESTABLISHED:
456
324
            logger.debug("Zeroconf service established.")
457
325
        elif state == avahi.ENTRY_GROUP_COLLISION:
459
327
            self.rename()
460
328
        elif state == avahi.ENTRY_GROUP_FAILURE:
461
329
            logger.critical("Avahi: Error in group state changed %s",
462
 
                            str(error))
463
 
            raise AvahiGroupError("State changed: {!s}".format(error))
464
 
 
 
330
                            unicode(error))
 
331
            raise AvahiGroupError("State changed: {0!s}"
 
332
                                  .format(error))
 
333
    
465
334
    def cleanup(self):
466
335
        """Derived from the Avahi example code"""
467
336
        if self.group is not None:
472
341
                pass
473
342
            self.group = None
474
343
        self.remove()
475
 
 
 
344
    
476
345
    def server_state_changed(self, state, error=None):
477
346
        """Derived from the Avahi example code"""
478
347
        logger.debug("Avahi server state change: %i", state)
479
 
        bad_states = {
480
 
            avahi.SERVER_INVALID: "Zeroconf server invalid",
481
 
            avahi.SERVER_REGISTERING: None,
482
 
            avahi.SERVER_COLLISION: "Zeroconf server name collision",
483
 
            avahi.SERVER_FAILURE: "Zeroconf server failure",
484
 
        }
 
348
        bad_states = { avahi.SERVER_INVALID:
 
349
                           "Zeroconf server invalid",
 
350
                       avahi.SERVER_REGISTERING: None,
 
351
                       avahi.SERVER_COLLISION:
 
352
                           "Zeroconf server name collision",
 
353
                       avahi.SERVER_FAILURE:
 
354
                           "Zeroconf server failure" }
485
355
        if state in bad_states:
486
356
            if bad_states[state] is not None:
487
357
                if error is None:
490
360
                    logger.error(bad_states[state] + ": %r", error)
491
361
            self.cleanup()
492
362
        elif state == avahi.SERVER_RUNNING:
493
 
            try:
494
 
                self.add()
495
 
            except dbus.exceptions.DBusException as error:
496
 
                if (error.get_dbus_name()
497
 
                    == "org.freedesktop.Avahi.CollisionError"):
498
 
                    logger.info("Local Zeroconf service name"
499
 
                                " collision.")
500
 
                    return self.rename(remove=False)
501
 
                else:
502
 
                    logger.critical("D-Bus Exception", exc_info=error)
503
 
                    self.cleanup()
504
 
                    os._exit(1)
 
363
            self.add()
505
364
        else:
506
365
            if error is None:
507
366
                logger.debug("Unknown state: %r", state)
508
367
            else:
509
368
                logger.debug("Unknown state: %r: %r", state, error)
510
 
 
 
369
    
511
370
    def activate(self):
512
371
        """Derived from the Avahi example code"""
513
372
        if self.server is None:
517
376
                                    follow_name_owner_changes=True),
518
377
                avahi.DBUS_INTERFACE_SERVER)
519
378
        self.server.connect_to_signal("StateChanged",
520
 
                                      self.server_state_changed)
 
379
                                 self.server_state_changed)
521
380
        self.server_state_changed(self.server.GetState())
522
381
 
523
382
 
524
383
class AvahiServiceToSyslog(AvahiService):
525
 
    def rename(self, *args, **kwargs):
 
384
    def rename(self):
526
385
        """Add the new name to the syslog messages"""
527
 
        ret = super(AvahiServiceToSyslog, self).rename(*args,
528
 
                                                       **kwargs)
529
 
        syslogger.setFormatter(logging.Formatter(
530
 
            "Mandos ({}) [%(process)d]: %(levelname)s: %(message)s"
531
 
            .format(self.name)))
 
386
        ret = AvahiService.rename(self)
 
387
        syslogger.setFormatter(logging.Formatter
 
388
                               ('Mandos ({0}) [%(process)d]:'
 
389
                                ' %(levelname)s: %(message)s'
 
390
                                .format(self.name)))
532
391
        return ret
533
392
 
534
393
 
535
 
# Pretend that we have a GnuTLS module
536
 
class gnutls:
537
 
    """This isn't so much a class as it is a module-like namespace."""
538
 
 
539
 
    library = ctypes.util.find_library("gnutls")
540
 
    if library is None:
541
 
        library = ctypes.util.find_library("gnutls-deb0")
542
 
    _library = ctypes.cdll.LoadLibrary(library)
543
 
    del library
544
 
 
545
 
    # Unless otherwise indicated, the constants and types below are
546
 
    # all from the gnutls/gnutls.h C header file.
547
 
 
548
 
    # Constants
549
 
    E_SUCCESS = 0
550
 
    E_INTERRUPTED = -52
551
 
    E_AGAIN = -28
552
 
    CRT_OPENPGP = 2
553
 
    CRT_RAWPK = 3
554
 
    CLIENT = 2
555
 
    SHUT_RDWR = 0
556
 
    CRD_CERTIFICATE = 1
557
 
    E_NO_CERTIFICATE_FOUND = -49
558
 
    X509_FMT_DER = 0
559
 
    NO_TICKETS = 1<<10
560
 
    ENABLE_RAWPK = 1<<18
561
 
    CTYPE_PEERS = 3
562
 
    KEYID_USE_SHA256 = 1        # gnutls/x509.h
563
 
    OPENPGP_FMT_RAW = 0         # gnutls/openpgp.h
564
 
 
565
 
    # Types
566
 
    class _session_int(ctypes.Structure):
567
 
        _fields_ = []
568
 
    session_t = ctypes.POINTER(_session_int)
569
 
 
570
 
    class certificate_credentials_st(ctypes.Structure):
571
 
        _fields_ = []
572
 
    certificate_credentials_t = ctypes.POINTER(
573
 
        certificate_credentials_st)
574
 
    certificate_type_t = ctypes.c_int
575
 
 
576
 
    class datum_t(ctypes.Structure):
577
 
        _fields_ = [("data", ctypes.POINTER(ctypes.c_ubyte)),
578
 
                    ("size", ctypes.c_uint)]
579
 
 
580
 
    class _openpgp_crt_int(ctypes.Structure):
581
 
        _fields_ = []
582
 
    openpgp_crt_t = ctypes.POINTER(_openpgp_crt_int)
583
 
    openpgp_crt_fmt_t = ctypes.c_int  # gnutls/openpgp.h
584
 
    log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
585
 
    credentials_type_t = ctypes.c_int
586
 
    transport_ptr_t = ctypes.c_void_p
587
 
    close_request_t = ctypes.c_int
588
 
 
589
 
    # Exceptions
590
 
    class Error(Exception):
591
 
        def __init__(self, message=None, code=None, args=()):
592
 
            # Default usage is by a message string, but if a return
593
 
            # code is passed, convert it to a string with
594
 
            # gnutls.strerror()
595
 
            self.code = code
596
 
            if message is None and code is not None:
597
 
                message = gnutls.strerror(code).decode(
598
 
                    "utf-8", errors="replace")
599
 
            return super(gnutls.Error, self).__init__(
600
 
                message, *args)
601
 
 
602
 
    class CertificateSecurityError(Error):
603
 
        pass
604
 
 
605
 
    class PointerTo:
606
 
        def __init__(self, cls):
607
 
            self.cls = cls
608
 
 
609
 
        def from_param(self, obj):
610
 
            if not isinstance(obj, self.cls):
611
 
                raise TypeError("Not of type {}: {!r}"
612
 
                                .format(self.cls.__name__, obj))
613
 
            return ctypes.byref(obj.from_param(obj))
614
 
 
615
 
    class CastToVoidPointer:
616
 
        def __init__(self, cls):
617
 
            self.cls = cls
618
 
 
619
 
        def from_param(self, obj):
620
 
            if not isinstance(obj, self.cls):
621
 
                raise TypeError("Not of type {}: {!r}"
622
 
                                .format(self.cls.__name__, obj))
623
 
            return ctypes.cast(obj.from_param(obj), ctypes.c_void_p)
624
 
 
625
 
    class With_from_param:
626
 
        @classmethod
627
 
        def from_param(cls, obj):
628
 
            return obj._as_parameter_
629
 
 
630
 
    # Classes
631
 
    class Credentials(With_from_param):
632
 
        def __init__(self):
633
 
            self._as_parameter_ = gnutls.certificate_credentials_t()
634
 
            gnutls.certificate_allocate_credentials(self)
635
 
            self.type = gnutls.CRD_CERTIFICATE
636
 
 
637
 
        def __del__(self):
638
 
            gnutls.certificate_free_credentials(self)
639
 
 
640
 
    class ClientSession(With_from_param):
641
 
        def __init__(self, socket, credentials=None):
642
 
            self._as_parameter_ = gnutls.session_t()
643
 
            gnutls_flags = gnutls.CLIENT
644
 
            if gnutls.check_version(b"3.5.6"):
645
 
                gnutls_flags |= gnutls.NO_TICKETS
646
 
            if gnutls.has_rawpk:
647
 
                gnutls_flags |= gnutls.ENABLE_RAWPK
648
 
            gnutls.init(self, gnutls_flags)
649
 
            del gnutls_flags
650
 
            gnutls.set_default_priority(self)
651
 
            gnutls.transport_set_ptr(self, socket.fileno())
652
 
            gnutls.handshake_set_private_extensions(self, True)
653
 
            self.socket = socket
654
 
            if credentials is None:
655
 
                credentials = gnutls.Credentials()
656
 
            gnutls.credentials_set(self, credentials.type,
657
 
                                   credentials)
658
 
            self.credentials = credentials
659
 
 
660
 
        def __del__(self):
661
 
            gnutls.deinit(self)
662
 
 
663
 
        def handshake(self):
664
 
            return gnutls.handshake(self)
665
 
 
666
 
        def send(self, data):
667
 
            data = bytes(data)
668
 
            data_len = len(data)
669
 
            while data_len > 0:
670
 
                data_len -= gnutls.record_send(self, data[-data_len:],
671
 
                                               data_len)
672
 
 
673
 
        def bye(self):
674
 
            return gnutls.bye(self, gnutls.SHUT_RDWR)
675
 
 
676
 
    # Error handling functions
677
 
    def _error_code(result):
678
 
        """A function to raise exceptions on errors, suitable
679
 
        for the "restype" attribute on ctypes functions"""
680
 
        if result >= gnutls.E_SUCCESS:
681
 
            return result
682
 
        if result == gnutls.E_NO_CERTIFICATE_FOUND:
683
 
            raise gnutls.CertificateSecurityError(code=result)
684
 
        raise gnutls.Error(code=result)
685
 
 
686
 
    def _retry_on_error(result, func, arguments,
687
 
                        _error_code=_error_code):
688
 
        """A function to retry on some errors, suitable
689
 
        for the "errcheck" attribute on ctypes functions"""
690
 
        while result < gnutls.E_SUCCESS:
691
 
            if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
692
 
                return _error_code(result)
693
 
            result = func(*arguments)
694
 
        return result
695
 
 
696
 
    # Unless otherwise indicated, the function declarations below are
697
 
    # all from the gnutls/gnutls.h C header file.
698
 
 
699
 
    # Functions
700
 
    priority_set_direct = _library.gnutls_priority_set_direct
701
 
    priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,
702
 
                                    ctypes.POINTER(ctypes.c_char_p)]
703
 
    priority_set_direct.restype = _error_code
704
 
 
705
 
    init = _library.gnutls_init
706
 
    init.argtypes = [PointerTo(ClientSession), ctypes.c_int]
707
 
    init.restype = _error_code
708
 
 
709
 
    set_default_priority = _library.gnutls_set_default_priority
710
 
    set_default_priority.argtypes = [ClientSession]
711
 
    set_default_priority.restype = _error_code
712
 
 
713
 
    record_send = _library.gnutls_record_send
714
 
    record_send.argtypes = [ClientSession, ctypes.c_void_p,
715
 
                            ctypes.c_size_t]
716
 
    record_send.restype = ctypes.c_ssize_t
717
 
    record_send.errcheck = _retry_on_error
718
 
 
719
 
    certificate_allocate_credentials = (
720
 
        _library.gnutls_certificate_allocate_credentials)
721
 
    certificate_allocate_credentials.argtypes = [
722
 
        PointerTo(Credentials)]
723
 
    certificate_allocate_credentials.restype = _error_code
724
 
 
725
 
    certificate_free_credentials = (
726
 
        _library.gnutls_certificate_free_credentials)
727
 
    certificate_free_credentials.argtypes = [Credentials]
728
 
    certificate_free_credentials.restype = None
729
 
 
730
 
    handshake_set_private_extensions = (
731
 
        _library.gnutls_handshake_set_private_extensions)
732
 
    handshake_set_private_extensions.argtypes = [ClientSession,
733
 
                                                 ctypes.c_int]
734
 
    handshake_set_private_extensions.restype = None
735
 
 
736
 
    credentials_set = _library.gnutls_credentials_set
737
 
    credentials_set.argtypes = [ClientSession, credentials_type_t,
738
 
                                CastToVoidPointer(Credentials)]
739
 
    credentials_set.restype = _error_code
740
 
 
741
 
    strerror = _library.gnutls_strerror
742
 
    strerror.argtypes = [ctypes.c_int]
743
 
    strerror.restype = ctypes.c_char_p
744
 
 
745
 
    certificate_type_get = _library.gnutls_certificate_type_get
746
 
    certificate_type_get.argtypes = [ClientSession]
747
 
    certificate_type_get.restype = _error_code
748
 
 
749
 
    certificate_get_peers = _library.gnutls_certificate_get_peers
750
 
    certificate_get_peers.argtypes = [ClientSession,
751
 
                                      ctypes.POINTER(ctypes.c_uint)]
752
 
    certificate_get_peers.restype = ctypes.POINTER(datum_t)
753
 
 
754
 
    global_set_log_level = _library.gnutls_global_set_log_level
755
 
    global_set_log_level.argtypes = [ctypes.c_int]
756
 
    global_set_log_level.restype = None
757
 
 
758
 
    global_set_log_function = _library.gnutls_global_set_log_function
759
 
    global_set_log_function.argtypes = [log_func]
760
 
    global_set_log_function.restype = None
761
 
 
762
 
    deinit = _library.gnutls_deinit
763
 
    deinit.argtypes = [ClientSession]
764
 
    deinit.restype = None
765
 
 
766
 
    handshake = _library.gnutls_handshake
767
 
    handshake.argtypes = [ClientSession]
768
 
    handshake.restype = ctypes.c_int
769
 
    handshake.errcheck = _retry_on_error
770
 
 
771
 
    transport_set_ptr = _library.gnutls_transport_set_ptr
772
 
    transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]
773
 
    transport_set_ptr.restype = None
774
 
 
775
 
    bye = _library.gnutls_bye
776
 
    bye.argtypes = [ClientSession, close_request_t]
777
 
    bye.restype = ctypes.c_int
778
 
    bye.errcheck = _retry_on_error
779
 
 
780
 
    check_version = _library.gnutls_check_version
781
 
    check_version.argtypes = [ctypes.c_char_p]
782
 
    check_version.restype = ctypes.c_char_p
783
 
 
784
 
    _need_version = b"3.3.0"
785
 
    if check_version(_need_version) is None:
786
 
        raise self.Error("Needs GnuTLS {} or later"
787
 
                         .format(_need_version))
788
 
 
789
 
    _tls_rawpk_version = b"3.6.6"
790
 
    has_rawpk = bool(check_version(_tls_rawpk_version))
791
 
 
792
 
    if has_rawpk:
793
 
        # Types
794
 
        class pubkey_st(ctypes.Structure):
795
 
            _fields = []
796
 
        pubkey_t = ctypes.POINTER(pubkey_st)
797
 
 
798
 
        x509_crt_fmt_t = ctypes.c_int
799
 
 
800
 
        # All the function declarations below are from
801
 
        # gnutls/abstract.h
802
 
        pubkey_init = _library.gnutls_pubkey_init
803
 
        pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
804
 
        pubkey_init.restype = _error_code
805
 
 
806
 
        pubkey_import = _library.gnutls_pubkey_import
807
 
        pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
808
 
                                  x509_crt_fmt_t]
809
 
        pubkey_import.restype = _error_code
810
 
 
811
 
        pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
812
 
        pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
813
 
                                      ctypes.POINTER(ctypes.c_ubyte),
814
 
                                      ctypes.POINTER(ctypes.c_size_t)]
815
 
        pubkey_get_key_id.restype = _error_code
816
 
 
817
 
        pubkey_deinit = _library.gnutls_pubkey_deinit
818
 
        pubkey_deinit.argtypes = [pubkey_t]
819
 
        pubkey_deinit.restype = None
820
 
    else:
821
 
        # All the function declarations below are from
822
 
        # gnutls/openpgp.h
823
 
 
824
 
        openpgp_crt_init = _library.gnutls_openpgp_crt_init
825
 
        openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
826
 
        openpgp_crt_init.restype = _error_code
827
 
 
828
 
        openpgp_crt_import = _library.gnutls_openpgp_crt_import
829
 
        openpgp_crt_import.argtypes = [openpgp_crt_t,
830
 
                                       ctypes.POINTER(datum_t),
831
 
                                       openpgp_crt_fmt_t]
832
 
        openpgp_crt_import.restype = _error_code
833
 
 
834
 
        openpgp_crt_verify_self = \
835
 
            _library.gnutls_openpgp_crt_verify_self
836
 
        openpgp_crt_verify_self.argtypes = [
837
 
            openpgp_crt_t,
838
 
            ctypes.c_uint,
839
 
            ctypes.POINTER(ctypes.c_uint),
840
 
        ]
841
 
        openpgp_crt_verify_self.restype = _error_code
842
 
 
843
 
        openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
844
 
        openpgp_crt_deinit.argtypes = [openpgp_crt_t]
845
 
        openpgp_crt_deinit.restype = None
846
 
 
847
 
        openpgp_crt_get_fingerprint = (
848
 
            _library.gnutls_openpgp_crt_get_fingerprint)
849
 
        openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
850
 
                                                ctypes.c_void_p,
851
 
                                                ctypes.POINTER(
852
 
                                                    ctypes.c_size_t)]
853
 
        openpgp_crt_get_fingerprint.restype = _error_code
854
 
 
855
 
    if check_version(b"3.6.4"):
856
 
        certificate_type_get2 = _library.gnutls_certificate_type_get2
857
 
        certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]
858
 
        certificate_type_get2.restype = _error_code
859
 
 
860
 
    # Remove non-public functions
861
 
    del _error_code, _retry_on_error
862
 
 
863
 
 
864
 
def call_pipe(connection,       # : multiprocessing.Connection
865
 
              func, *args, **kwargs):
866
 
    """This function is meant to be called by multiprocessing.Process
867
 
 
868
 
    This function runs func(*args, **kwargs), and writes the resulting
869
 
    return value on the provided multiprocessing.Connection.
870
 
    """
871
 
    connection.send(func(*args, **kwargs))
872
 
    connection.close()
873
 
 
874
 
 
875
 
class Client:
 
394
def timedelta_to_milliseconds(td):
 
395
    "Convert a datetime.timedelta() to milliseconds"
 
396
    return ((td.days * 24 * 60 * 60 * 1000)
 
397
            + (td.seconds * 1000)
 
398
            + (td.microseconds // 1000))
 
399
 
 
400
 
 
401
class Client(object):
876
402
    """A representation of a client host served by this server.
877
 
 
 
403
    
878
404
    Attributes:
879
 
    approved:   bool(); None if not yet approved/disapproved
 
405
    approved:   bool(); 'None' if not yet approved/disapproved
880
406
    approval_delay: datetime.timedelta(); Time to wait for approval
881
407
    approval_duration: datetime.timedelta(); Duration of one approval
882
 
    checker: multiprocessing.Process(); a running checker process used
883
 
             to see if the client lives. None if no process is
884
 
             running.
885
 
    checker_callback_tag: a GLib event source tag, or None
 
408
    checker:    subprocess.Popen(); a running checker process used
 
409
                                    to see if the client lives.
 
410
                                    'None' if no process is running.
 
411
    checker_callback_tag: a gobject event source tag, or None
886
412
    checker_command: string; External command which is run to check
887
413
                     if client lives.  %() expansions are done at
888
414
                     runtime with vars(self) as dict, so that for
889
415
                     instance %(name)s can be used in the command.
890
 
    checker_initiator_tag: a GLib event source tag, or None
 
416
    checker_initiator_tag: a gobject event source tag, or None
891
417
    created:    datetime.datetime(); (UTC) object creation
892
418
    client_structure: Object describing what attributes a client has
893
419
                      and is used for storing the client at exit
894
420
    current_checker_command: string; current running checker_command
895
 
    disable_initiator_tag: a GLib event source tag, or None
 
421
    disable_initiator_tag: a gobject event source tag, or None
896
422
    enabled:    bool()
897
423
    fingerprint: string (40 or 32 hexadecimal digits); used to
898
 
                 uniquely identify an OpenPGP client
899
 
    key_id: string (64 hexadecimal digits); used to uniquely identify
900
 
            a client using raw public keys
 
424
                 uniquely identify the client
901
425
    host:       string; available for use by the checker command
902
426
    interval:   datetime.timedelta(); How often to start a new checker
903
427
    last_approval_request: datetime.datetime(); (UTC) or None
905
429
    last_checker_status: integer between 0 and 255 reflecting exit
906
430
                         status of last checker. -1 reflects crashed
907
431
                         checker, -2 means no checker completed yet.
908
 
    last_checker_signal: The signal which killed the last checker, if
909
 
                         last_checker_status is -1
910
432
    last_enabled: datetime.datetime(); (UTC) or None
911
433
    name:       string; from the config file, used in log messages and
912
434
                        D-Bus identifiers
917
439
    runtime_expansions: Allowed attributes for runtime expansion.
918
440
    expires:    datetime.datetime(); time (UTC) when a client will be
919
441
                disabled, or None
920
 
    server_settings: The server_settings dict from main()
921
442
    """
922
 
 
 
443
    
923
444
    runtime_expansions = ("approval_delay", "approval_duration",
924
 
                          "created", "enabled", "expires", "key_id",
 
445
                          "created", "enabled", "expires",
925
446
                          "fingerprint", "host", "interval",
926
447
                          "last_approval_request", "last_checked_ok",
927
448
                          "last_enabled", "name", "timeout")
928
 
    client_defaults = {
929
 
        "timeout": "PT5M",
930
 
        "extended_timeout": "PT15M",
931
 
        "interval": "PT2M",
932
 
        "checker": "fping -q -- %%(host)s",
933
 
        "host": "",
934
 
        "approval_delay": "PT0S",
935
 
        "approval_duration": "PT1S",
936
 
        "approved_by_default": "True",
937
 
        "enabled": "True",
938
 
    }
939
 
 
 
449
    client_defaults = { "timeout": "5m",
 
450
                        "extended_timeout": "15m",
 
451
                        "interval": "2m",
 
452
                        "checker": "fping -q -- %%(host)s",
 
453
                        "host": "",
 
454
                        "approval_delay": "0s",
 
455
                        "approval_duration": "1s",
 
456
                        "approved_by_default": "True",
 
457
                        "enabled": "True",
 
458
                        }
 
459
    
 
460
    def timeout_milliseconds(self):
 
461
        "Return the 'timeout' attribute in milliseconds"
 
462
        return timedelta_to_milliseconds(self.timeout)
 
463
    
 
464
    def extended_timeout_milliseconds(self):
 
465
        "Return the 'extended_timeout' attribute in milliseconds"
 
466
        return timedelta_to_milliseconds(self.extended_timeout)
 
467
    
 
468
    def interval_milliseconds(self):
 
469
        "Return the 'interval' attribute in milliseconds"
 
470
        return timedelta_to_milliseconds(self.interval)
 
471
    
 
472
    def approval_delay_milliseconds(self):
 
473
        return timedelta_to_milliseconds(self.approval_delay)
 
474
    
940
475
    @staticmethod
941
476
    def config_parser(config):
942
477
        """Construct a new dict of client settings of this form:
949
484
        for client_name in config.sections():
950
485
            section = dict(config.items(client_name))
951
486
            client = settings[client_name] = {}
952
 
 
 
487
            
953
488
            client["host"] = section["host"]
954
489
            # Reformat values from string types to Python types
955
490
            client["approved_by_default"] = config.getboolean(
956
491
                client_name, "approved_by_default")
957
492
            client["enabled"] = config.getboolean(client_name,
958
493
                                                  "enabled")
959
 
 
960
 
            # Uppercase and remove spaces from key_id and fingerprint
961
 
            # for later comparison purposes with return value from the
962
 
            # key_id() and fingerprint() functions
963
 
            client["key_id"] = (section.get("key_id", "").upper()
964
 
                                .replace(" ", ""))
 
494
            
965
495
            client["fingerprint"] = (section["fingerprint"].upper()
966
496
                                     .replace(" ", ""))
967
497
            if "secret" in section:
968
 
                client["secret"] = codecs.decode(section["secret"]
969
 
                                                 .encode("utf-8"),
970
 
                                                 "base64")
 
498
                client["secret"] = section["secret"].decode("base64")
971
499
            elif "secfile" in section:
972
500
                with open(os.path.expanduser(os.path.expandvars
973
501
                                             (section["secfile"])),
974
502
                          "rb") as secfile:
975
503
                    client["secret"] = secfile.read()
976
504
            else:
977
 
                raise TypeError("No secret or secfile for section {}"
 
505
                raise TypeError("No secret or secfile for section {0}"
978
506
                                .format(section))
979
507
            client["timeout"] = string_to_delta(section["timeout"])
980
508
            client["extended_timeout"] = string_to_delta(
988
516
            client["last_approval_request"] = None
989
517
            client["last_checked_ok"] = None
990
518
            client["last_checker_status"] = -2
991
 
 
 
519
        
992
520
        return settings
993
 
 
994
 
    def __init__(self, settings, name=None, server_settings=None):
 
521
    
 
522
    def __init__(self, settings, name = None):
995
523
        self.name = name
996
 
        if server_settings is None:
997
 
            server_settings = {}
998
 
        self.server_settings = server_settings
999
524
        # adding all client settings
1000
 
        for setting, value in settings.items():
 
525
        for setting, value in settings.iteritems():
1001
526
            setattr(self, setting, value)
1002
 
 
 
527
        
1003
528
        if self.enabled:
1004
529
            if not hasattr(self, "last_enabled"):
1005
530
                self.last_enabled = datetime.datetime.utcnow()
1009
534
        else:
1010
535
            self.last_enabled = None
1011
536
            self.expires = None
1012
 
 
 
537
        
1013
538
        logger.debug("Creating client %r", self.name)
1014
 
        logger.debug("  Key ID: %s", self.key_id)
 
539
        # Uppercase and remove spaces from fingerprint for later
 
540
        # comparison purposes with return value from the fingerprint()
 
541
        # function
1015
542
        logger.debug("  Fingerprint: %s", self.fingerprint)
1016
543
        self.created = settings.get("created",
1017
544
                                    datetime.datetime.utcnow())
1018
 
 
 
545
        
1019
546
        # attributes specific for this server instance
1020
547
        self.checker = None
1021
548
        self.checker_initiator_tag = None
1024
551
        self.current_checker_command = None
1025
552
        self.approved = None
1026
553
        self.approvals_pending = 0
1027
 
        self.changedstate = multiprocessing_manager.Condition(
1028
 
            multiprocessing_manager.Lock())
1029
 
        self.client_structure = [attr
1030
 
                                 for attr in self.__dict__.keys()
 
554
        self.changedstate = (multiprocessing_manager
 
555
                             .Condition(multiprocessing_manager
 
556
                                        .Lock()))
 
557
        self.client_structure = [attr for attr in
 
558
                                 self.__dict__.iterkeys()
1031
559
                                 if not attr.startswith("_")]
1032
560
        self.client_structure.append("client_structure")
1033
 
 
1034
 
        for name, t in inspect.getmembers(
1035
 
                type(self), lambda obj: isinstance(obj, property)):
 
561
        
 
562
        for name, t in inspect.getmembers(type(self),
 
563
                                          lambda obj:
 
564
                                              isinstance(obj,
 
565
                                                         property)):
1036
566
            if not name.startswith("_"):
1037
567
                self.client_structure.append(name)
1038
 
 
 
568
    
1039
569
    # Send notice to process children that client state has changed
1040
570
    def send_changedstate(self):
1041
571
        with self.changedstate:
1042
572
            self.changedstate.notify_all()
1043
 
 
 
573
    
1044
574
    def enable(self):
1045
575
        """Start this client's checker and timeout hooks"""
1046
576
        if getattr(self, "enabled", False):
1051
581
        self.last_enabled = datetime.datetime.utcnow()
1052
582
        self.init_checker()
1053
583
        self.send_changedstate()
1054
 
 
 
584
    
1055
585
    def disable(self, quiet=True):
1056
586
        """Disable this client."""
1057
587
        if not getattr(self, "enabled", False):
1059
589
        if not quiet:
1060
590
            logger.info("Disabling client %s", self.name)
1061
591
        if getattr(self, "disable_initiator_tag", None) is not None:
1062
 
            GLib.source_remove(self.disable_initiator_tag)
 
592
            gobject.source_remove(self.disable_initiator_tag)
1063
593
            self.disable_initiator_tag = None
1064
594
        self.expires = None
1065
595
        if getattr(self, "checker_initiator_tag", None) is not None:
1066
 
            GLib.source_remove(self.checker_initiator_tag)
 
596
            gobject.source_remove(self.checker_initiator_tag)
1067
597
            self.checker_initiator_tag = None
1068
598
        self.stop_checker()
1069
599
        self.enabled = False
1070
600
        if not quiet:
1071
601
            self.send_changedstate()
1072
 
        # Do not run this again if called by a GLib.timeout_add
 
602
        # Do not run this again if called by a gobject.timeout_add
1073
603
        return False
1074
 
 
 
604
    
1075
605
    def __del__(self):
1076
606
        self.disable()
1077
 
 
 
607
    
1078
608
    def init_checker(self):
1079
609
        # Schedule a new checker to be started an 'interval' from now,
1080
610
        # and every interval from then on.
1081
611
        if self.checker_initiator_tag is not None:
1082
 
            GLib.source_remove(self.checker_initiator_tag)
1083
 
        self.checker_initiator_tag = GLib.timeout_add(
1084
 
            random.randrange(int(self.interval.total_seconds() * 1000
1085
 
                                 + 1)),
1086
 
            self.start_checker)
 
612
            gobject.source_remove(self.checker_initiator_tag)
 
613
        self.checker_initiator_tag = (gobject.timeout_add
 
614
                                      (self.interval_milliseconds(),
 
615
                                       self.start_checker))
1087
616
        # Schedule a disable() when 'timeout' has passed
1088
617
        if self.disable_initiator_tag is not None:
1089
 
            GLib.source_remove(self.disable_initiator_tag)
1090
 
        self.disable_initiator_tag = GLib.timeout_add(
1091
 
            int(self.timeout.total_seconds() * 1000), self.disable)
 
618
            gobject.source_remove(self.disable_initiator_tag)
 
619
        self.disable_initiator_tag = (gobject.timeout_add
 
620
                                   (self.timeout_milliseconds(),
 
621
                                    self.disable))
1092
622
        # Also start a new checker *right now*.
1093
623
        self.start_checker()
1094
 
 
1095
 
    def checker_callback(self, source, condition, connection,
1096
 
                         command):
 
624
    
 
625
    def checker_callback(self, pid, condition, command):
1097
626
        """The checker has completed, so take appropriate actions."""
1098
 
        # Read return code from connection (see call_pipe)
1099
 
        returncode = connection.recv()
1100
 
        connection.close()
1101
 
        if self.checker is not None:
1102
 
            self.checker.join()
1103
627
        self.checker_callback_tag = None
1104
628
        self.checker = None
1105
 
 
1106
 
        if returncode >= 0:
1107
 
            self.last_checker_status = returncode
1108
 
            self.last_checker_signal = None
 
629
        if os.WIFEXITED(condition):
 
630
            self.last_checker_status = os.WEXITSTATUS(condition)
1109
631
            if self.last_checker_status == 0:
1110
632
                logger.info("Checker for %(name)s succeeded",
1111
633
                            vars(self))
1112
634
                self.checked_ok()
1113
635
            else:
1114
 
                logger.info("Checker for %(name)s failed", vars(self))
 
636
                logger.info("Checker for %(name)s failed",
 
637
                            vars(self))
1115
638
        else:
1116
639
            self.last_checker_status = -1
1117
 
            self.last_checker_signal = -returncode
1118
640
            logger.warning("Checker for %(name)s crashed?",
1119
641
                           vars(self))
1120
 
        return False
1121
 
 
 
642
    
1122
643
    def checked_ok(self):
1123
644
        """Assert that the client has been seen, alive and well."""
1124
645
        self.last_checked_ok = datetime.datetime.utcnow()
1125
646
        self.last_checker_status = 0
1126
 
        self.last_checker_signal = None
1127
647
        self.bump_timeout()
1128
 
 
 
648
    
1129
649
    def bump_timeout(self, timeout=None):
1130
650
        """Bump up the timeout for this client."""
1131
651
        if timeout is None:
1132
652
            timeout = self.timeout
1133
653
        if self.disable_initiator_tag is not None:
1134
 
            GLib.source_remove(self.disable_initiator_tag)
 
654
            gobject.source_remove(self.disable_initiator_tag)
1135
655
            self.disable_initiator_tag = None
1136
656
        if getattr(self, "enabled", False):
1137
 
            self.disable_initiator_tag = GLib.timeout_add(
1138
 
                int(timeout.total_seconds() * 1000), self.disable)
 
657
            self.disable_initiator_tag = (gobject.timeout_add
 
658
                                          (timedelta_to_milliseconds
 
659
                                           (timeout), self.disable))
1139
660
            self.expires = datetime.datetime.utcnow() + timeout
1140
 
 
 
661
    
1141
662
    def need_approval(self):
1142
663
        self.last_approval_request = datetime.datetime.utcnow()
1143
 
 
 
664
    
1144
665
    def start_checker(self):
1145
666
        """Start a new checker subprocess if one is not running.
1146
 
 
 
667
        
1147
668
        If a checker already exists, leave it running and do
1148
669
        nothing."""
1149
670
        # The reason for not killing a running checker is that if we
1154
675
        # checkers alone, the checker would have to take more time
1155
676
        # than 'timeout' for the client to be disabled, which is as it
1156
677
        # should be.
1157
 
 
1158
 
        if self.checker is not None and not self.checker.is_alive():
1159
 
            logger.warning("Checker was not alive; joining")
1160
 
            self.checker.join()
1161
 
            self.checker = None
 
678
        
 
679
        # If a checker exists, make sure it is not a zombie
 
680
        try:
 
681
            pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
 
682
        except (AttributeError, OSError) as error:
 
683
            if (isinstance(error, OSError)
 
684
                and error.errno != errno.ECHILD):
 
685
                raise error
 
686
        else:
 
687
            if pid:
 
688
                logger.warning("Checker was a zombie")
 
689
                gobject.source_remove(self.checker_callback_tag)
 
690
                self.checker_callback(pid, status,
 
691
                                      self.current_checker_command)
1162
692
        # Start a new checker if needed
1163
693
        if self.checker is None:
1164
694
            # Escape attributes for the shell
1165
 
            escaped_attrs = {
1166
 
                attr: shlex.quote(str(getattr(self, attr)))
1167
 
                for attr in self.runtime_expansions}
 
695
            escaped_attrs = dict(
 
696
                (attr, re.escape(unicode(getattr(self, attr))))
 
697
                for attr in
 
698
                self.runtime_expansions)
1168
699
            try:
1169
700
                command = self.checker_command % escaped_attrs
1170
701
            except TypeError as error:
1171
702
                logger.error('Could not format string "%s"',
1172
 
                             self.checker_command,
 
703
                             self.checker_command, exc_info=error)
 
704
                return True # Try again later
 
705
            self.current_checker_command = command
 
706
            try:
 
707
                logger.info("Starting checker %r for %s",
 
708
                            command, self.name)
 
709
                # We don't need to redirect stdout and stderr, since
 
710
                # in normal mode, that is already done by daemon(),
 
711
                # and in debug mode we don't want to.  (Stdin is
 
712
                # always replaced by /dev/null.)
 
713
                self.checker = subprocess.Popen(command,
 
714
                                                close_fds=True,
 
715
                                                shell=True, cwd="/")
 
716
            except OSError as error:
 
717
                logger.error("Failed to start subprocess",
1173
718
                             exc_info=error)
1174
 
                return True     # Try again later
1175
 
            self.current_checker_command = command
1176
 
            logger.info("Starting checker %r for %s", command,
1177
 
                        self.name)
1178
 
            # We don't need to redirect stdout and stderr, since
1179
 
            # in normal mode, that is already done by daemon(),
1180
 
            # and in debug mode we don't want to.  (Stdin is
1181
 
            # always replaced by /dev/null.)
1182
 
            # The exception is when not debugging but nevertheless
1183
 
            # running in the foreground; use the previously
1184
 
            # created wnull.
1185
 
            popen_args = {"close_fds": True,
1186
 
                          "shell": True,
1187
 
                          "cwd": "/"}
1188
 
            if (not self.server_settings["debug"]
1189
 
                and self.server_settings["foreground"]):
1190
 
                popen_args.update({"stdout": wnull,
1191
 
                                   "stderr": wnull})
1192
 
            pipe = multiprocessing.Pipe(duplex=False)
1193
 
            self.checker = multiprocessing.Process(
1194
 
                target=call_pipe,
1195
 
                args=(pipe[1], subprocess.call, command),
1196
 
                kwargs=popen_args)
1197
 
            self.checker.start()
1198
 
            self.checker_callback_tag = GLib.io_add_watch(
1199
 
                GLib.IOChannel.unix_new(pipe[0].fileno()),
1200
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1201
 
                self.checker_callback, pipe[0], command)
1202
 
        # Re-run this periodically if run by GLib.timeout_add
 
719
            self.checker_callback_tag = (gobject.child_watch_add
 
720
                                         (self.checker.pid,
 
721
                                          self.checker_callback,
 
722
                                          data=command))
 
723
            # The checker may have completed before the gobject
 
724
            # watch was added.  Check for this.
 
725
            pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
 
726
            if pid:
 
727
                gobject.source_remove(self.checker_callback_tag)
 
728
                self.checker_callback(pid, status, command)
 
729
        # Re-run this periodically if run by gobject.timeout_add
1203
730
        return True
1204
 
 
 
731
    
1205
732
    def stop_checker(self):
1206
733
        """Force the checker process, if any, to stop."""
1207
734
        if self.checker_callback_tag:
1208
 
            GLib.source_remove(self.checker_callback_tag)
 
735
            gobject.source_remove(self.checker_callback_tag)
1209
736
            self.checker_callback_tag = None
1210
737
        if getattr(self, "checker", None) is None:
1211
738
            return
1212
739
        logger.debug("Stopping checker for %(name)s", vars(self))
1213
 
        self.checker.terminate()
 
740
        try:
 
741
            self.checker.terminate()
 
742
            #time.sleep(0.5)
 
743
            #if self.checker.poll() is None:
 
744
            #    self.checker.kill()
 
745
        except OSError as error:
 
746
            if error.errno != errno.ESRCH: # No such process
 
747
                raise
1214
748
        self.checker = None
1215
749
 
1216
750
 
1217
 
def dbus_service_property(dbus_interface,
1218
 
                          signature="v",
1219
 
                          access="readwrite",
1220
 
                          byte_arrays=False):
 
751
def dbus_service_property(dbus_interface, signature="v",
 
752
                          access="readwrite", byte_arrays=False):
1221
753
    """Decorators for marking methods of a DBusObjectWithProperties to
1222
754
    become properties on the D-Bus.
1223
 
 
 
755
    
1224
756
    The decorated method will be called with no arguments by "Get"
1225
757
    and with one argument by "Set".
1226
 
 
 
758
    
1227
759
    The parameters, where they are supported, are the same as
1228
760
    dbus.service.method, except there is only "signature", since the
1229
761
    type from Get() and the type sent to Set() is the same.
1232
764
    # "Set" method, so we fail early here:
1233
765
    if byte_arrays and signature != "ay":
1234
766
        raise ValueError("Byte arrays not supported for non-'ay'"
1235
 
                         " signature {!r}".format(signature))
1236
 
 
 
767
                         " signature {0!r}".format(signature))
1237
768
    def decorator(func):
1238
769
        func._dbus_is_property = True
1239
770
        func._dbus_interface = dbus_interface
1242
773
        func._dbus_name = func.__name__
1243
774
        if func._dbus_name.endswith("_dbus_property"):
1244
775
            func._dbus_name = func._dbus_name[:-14]
1245
 
        func._dbus_get_args_options = {"byte_arrays": byte_arrays}
 
776
        func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1246
777
        return func
1247
 
 
1248
778
    return decorator
1249
779
 
1250
780
 
1251
781
def dbus_interface_annotations(dbus_interface):
1252
782
    """Decorator for marking functions returning interface annotations
1253
 
 
 
783
    
1254
784
    Usage:
1255
 
 
 
785
    
1256
786
    @dbus_interface_annotations("org.example.Interface")
1257
787
    def _foo(self):  # Function name does not matter
1258
788
        return {"org.freedesktop.DBus.Deprecated": "true",
1259
789
                "org.freedesktop.DBus.Property.EmitsChangedSignal":
1260
790
                    "false"}
1261
791
    """
1262
 
 
1263
792
    def decorator(func):
1264
793
        func._dbus_is_interface = True
1265
794
        func._dbus_interface = dbus_interface
1266
795
        func._dbus_name = dbus_interface
1267
796
        return func
1268
 
 
1269
797
    return decorator
1270
798
 
1271
799
 
1272
800
def dbus_annotations(annotations):
1273
801
    """Decorator to annotate D-Bus methods, signals or properties
1274
802
    Usage:
1275
 
 
1276
 
    @dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1277
 
                       "org.freedesktop.DBus.Property."
1278
 
                       "EmitsChangedSignal": "false"})
 
803
    
1279
804
    @dbus_service_property("org.example.Interface", signature="b",
1280
805
                           access="r")
 
806
    @dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
 
807
                        "org.freedesktop.DBus.Property."
 
808
                        "EmitsChangedSignal": "false"})
1281
809
    def Property_dbus_property(self):
1282
810
        return dbus.Boolean(False)
1283
 
 
1284
 
    See also the DBusObjectWithAnnotations class.
1285
811
    """
1286
 
 
1287
812
    def decorator(func):
1288
813
        func._dbus_annotations = annotations
1289
814
        return func
1290
 
 
1291
815
    return decorator
1292
816
 
1293
817
 
1294
818
class DBusPropertyException(dbus.exceptions.DBusException):
1295
819
    """A base class for D-Bus property-related exceptions
1296
820
    """
1297
 
    pass
 
821
    def __unicode__(self):
 
822
        return unicode(str(self))
1298
823
 
1299
824
 
1300
825
class DBusPropertyAccessException(DBusPropertyException):
1309
834
    pass
1310
835
 
1311
836
 
1312
 
class DBusObjectWithAnnotations(dbus.service.Object):
1313
 
    """A D-Bus object with annotations.
1314
 
 
1315
 
    Classes inheriting from this can use the dbus_annotations
1316
 
    decorator to add annotations to methods or signals.
 
837
class DBusObjectWithProperties(dbus.service.Object):
 
838
    """A D-Bus object with properties.
 
839
    
 
840
    Classes inheriting from this can use the dbus_service_property
 
841
    decorator to expose methods as D-Bus properties.  It exposes the
 
842
    standard Get(), Set(), and GetAll() methods on the D-Bus.
1317
843
    """
1318
 
 
 
844
    
1319
845
    @staticmethod
1320
846
    def _is_dbus_thing(thing):
1321
847
        """Returns a function testing if an attribute is a D-Bus thing
1322
 
 
 
848
        
1323
849
        If called like _is_dbus_thing("method") it returns a function
1324
850
        suitable for use as predicate to inspect.getmembers().
1325
851
        """
1326
 
        return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
 
852
        return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1327
853
                                   False)
1328
 
 
 
854
    
1329
855
    def _get_all_dbus_things(self, thing):
1330
856
        """Returns a generator of (name, attribute) pairs
1331
857
        """
1332
 
        return ((getattr(athing.__get__(self), "_dbus_name", name),
 
858
        return ((getattr(athing.__get__(self), "_dbus_name",
 
859
                         name),
1333
860
                 athing.__get__(self))
1334
861
                for cls in self.__class__.__mro__
1335
862
                for name, athing in
1336
 
                inspect.getmembers(cls, self._is_dbus_thing(thing)))
1337
 
 
1338
 
    @dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1339
 
                         out_signature="s",
1340
 
                         path_keyword="object_path",
1341
 
                         connection_keyword="connection")
1342
 
    def Introspect(self, object_path, connection):
1343
 
        """Overloading of standard D-Bus method.
1344
 
 
1345
 
        Inserts annotation tags on methods and signals.
1346
 
        """
1347
 
        xmlstring = dbus.service.Object.Introspect(self, object_path,
1348
 
                                                   connection)
1349
 
        try:
1350
 
            document = xml.dom.minidom.parseString(xmlstring)
1351
 
 
1352
 
            for if_tag in document.getElementsByTagName("interface"):
1353
 
                # Add annotation tags
1354
 
                for typ in ("method", "signal"):
1355
 
                    for tag in if_tag.getElementsByTagName(typ):
1356
 
                        annots = dict()
1357
 
                        for name, prop in (self.
1358
 
                                           _get_all_dbus_things(typ)):
1359
 
                            if (name == tag.getAttribute("name")
1360
 
                                and prop._dbus_interface
1361
 
                                == if_tag.getAttribute("name")):
1362
 
                                annots.update(getattr(
1363
 
                                    prop, "_dbus_annotations", {}))
1364
 
                        for name, value in annots.items():
1365
 
                            ann_tag = document.createElement(
1366
 
                                "annotation")
1367
 
                            ann_tag.setAttribute("name", name)
1368
 
                            ann_tag.setAttribute("value", value)
1369
 
                            tag.appendChild(ann_tag)
1370
 
                # Add interface annotation tags
1371
 
                for annotation, value in dict(
1372
 
                    itertools.chain.from_iterable(
1373
 
                        annotations().items()
1374
 
                        for name, annotations
1375
 
                        in self._get_all_dbus_things("interface")
1376
 
                        if name == if_tag.getAttribute("name")
1377
 
                        )).items():
1378
 
                    ann_tag = document.createElement("annotation")
1379
 
                    ann_tag.setAttribute("name", annotation)
1380
 
                    ann_tag.setAttribute("value", value)
1381
 
                    if_tag.appendChild(ann_tag)
1382
 
                # Fix argument name for the Introspect method itself
1383
 
                if (if_tag.getAttribute("name")
1384
 
                    == dbus.INTROSPECTABLE_IFACE):
1385
 
                    for cn in if_tag.getElementsByTagName("method"):
1386
 
                        if cn.getAttribute("name") == "Introspect":
1387
 
                            for arg in cn.getElementsByTagName("arg"):
1388
 
                                if (arg.getAttribute("direction")
1389
 
                                    == "out"):
1390
 
                                    arg.setAttribute("name",
1391
 
                                                     "xml_data")
1392
 
            xmlstring = document.toxml("utf-8")
1393
 
            document.unlink()
1394
 
        except (AttributeError, xml.dom.DOMException,
1395
 
                xml.parsers.expat.ExpatError) as error:
1396
 
            logger.error("Failed to override Introspection method",
1397
 
                         exc_info=error)
1398
 
        return xmlstring
1399
 
 
1400
 
 
1401
 
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1402
 
    """A D-Bus object with properties.
1403
 
 
1404
 
    Classes inheriting from this can use the dbus_service_property
1405
 
    decorator to expose methods as D-Bus properties.  It exposes the
1406
 
    standard Get(), Set(), and GetAll() methods on the D-Bus.
1407
 
    """
1408
 
 
 
863
                inspect.getmembers(cls,
 
864
                                   self._is_dbus_thing(thing)))
 
865
    
1409
866
    def _get_dbus_property(self, interface_name, property_name):
1410
867
        """Returns a bound method if one exists which is a D-Bus
1411
868
        property with the specified name and interface.
1412
869
        """
1413
 
        for cls in self.__class__.__mro__:
1414
 
            for name, value in inspect.getmembers(
1415
 
                    cls, self._is_dbus_thing("property")):
 
870
        for cls in  self.__class__.__mro__:
 
871
            for name, value in (inspect.getmembers
 
872
                                (cls,
 
873
                                 self._is_dbus_thing("property"))):
1416
874
                if (value._dbus_name == property_name
1417
875
                    and value._dbus_interface == interface_name):
1418
876
                    return value.__get__(self)
1419
 
 
 
877
        
1420
878
        # No such property
1421
 
        raise DBusPropertyNotFound("{}:{}.{}".format(
1422
 
            self.dbus_object_path, interface_name, property_name))
1423
 
 
1424
 
    @classmethod
1425
 
    def _get_all_interface_names(cls):
1426
 
        """Get a sequence of all interfaces supported by an object"""
1427
 
        return (name for name in set(getattr(getattr(x, attr),
1428
 
                                             "_dbus_interface", None)
1429
 
                                     for x in (inspect.getmro(cls))
1430
 
                                     for attr in dir(x))
1431
 
                if name is not None)
1432
 
 
1433
 
    @dbus.service.method(dbus.PROPERTIES_IFACE,
1434
 
                         in_signature="ss",
 
879
        raise DBusPropertyNotFound(self.dbus_object_path + ":"
 
880
                                   + interface_name + "."
 
881
                                   + property_name)
 
882
    
 
883
    @dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1435
884
                         out_signature="v")
1436
885
    def Get(self, interface_name, property_name):
1437
886
        """Standard D-Bus property Get() method, see D-Bus standard.
1443
892
        if not hasattr(value, "variant_level"):
1444
893
            return value
1445
894
        return type(value)(value, variant_level=value.variant_level+1)
1446
 
 
 
895
    
1447
896
    @dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1448
897
    def Set(self, interface_name, property_name, value):
1449
898
        """Standard D-Bus property Set() method, see D-Bus standard.
1455
904
            # The byte_arrays option is not supported yet on
1456
905
            # signatures other than "ay".
1457
906
            if prop._dbus_signature != "ay":
1458
 
                raise ValueError("Byte arrays not supported for non-"
1459
 
                                 "'ay' signature {!r}"
1460
 
                                 .format(prop._dbus_signature))
1461
 
            value = dbus.ByteArray(bytes(value))
 
907
                raise ValueError
 
908
            value = dbus.ByteArray(b''.join(chr(byte)
 
909
                                            for byte in value))
1462
910
        prop(value)
1463
 
 
1464
 
    @dbus.service.method(dbus.PROPERTIES_IFACE,
1465
 
                         in_signature="s",
 
911
    
 
912
    @dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1466
913
                         out_signature="a{sv}")
1467
914
    def GetAll(self, interface_name):
1468
915
        """Standard D-Bus property GetAll() method, see D-Bus
1469
916
        standard.
1470
 
 
 
917
        
1471
918
        Note: Will not include properties with access="write".
1472
919
        """
1473
920
        properties = {}
1483
930
            if not hasattr(value, "variant_level"):
1484
931
                properties[name] = value
1485
932
                continue
1486
 
            properties[name] = type(value)(
1487
 
                value, variant_level=value.variant_level + 1)
 
933
            properties[name] = type(value)(value, variant_level=
 
934
                                           value.variant_level+1)
1488
935
        return dbus.Dictionary(properties, signature="sv")
1489
 
 
1490
 
    @dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1491
 
    def PropertiesChanged(self, interface_name, changed_properties,
1492
 
                          invalidated_properties):
1493
 
        """Standard D-Bus PropertiesChanged() signal, see D-Bus
1494
 
        standard.
1495
 
        """
1496
 
        pass
1497
 
 
 
936
    
1498
937
    @dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1499
938
                         out_signature="s",
1500
 
                         path_keyword="object_path",
1501
 
                         connection_keyword="connection")
 
939
                         path_keyword='object_path',
 
940
                         connection_keyword='connection')
1502
941
    def Introspect(self, object_path, connection):
1503
942
        """Overloading of standard D-Bus method.
1504
 
 
 
943
        
1505
944
        Inserts property tags and interface annotation tags.
1506
945
        """
1507
 
        xmlstring = DBusObjectWithAnnotations.Introspect(self,
1508
 
                                                         object_path,
1509
 
                                                         connection)
 
946
        xmlstring = dbus.service.Object.Introspect(self, object_path,
 
947
                                                   connection)
1510
948
        try:
1511
949
            document = xml.dom.minidom.parseString(xmlstring)
1512
 
 
1513
950
            def make_tag(document, name, prop):
1514
951
                e = document.createElement("property")
1515
952
                e.setAttribute("name", name)
1516
953
                e.setAttribute("type", prop._dbus_signature)
1517
954
                e.setAttribute("access", prop._dbus_access)
1518
955
                return e
1519
 
 
1520
956
            for if_tag in document.getElementsByTagName("interface"):
1521
957
                # Add property tags
1522
958
                for tag in (make_tag(document, name, prop)
1525
961
                            if prop._dbus_interface
1526
962
                            == if_tag.getAttribute("name")):
1527
963
                    if_tag.appendChild(tag)
1528
 
                # Add annotation tags for properties
1529
 
                for tag in if_tag.getElementsByTagName("property"):
1530
 
                    annots = dict()
1531
 
                    for name, prop in self._get_all_dbus_things(
1532
 
                            "property"):
1533
 
                        if (name == tag.getAttribute("name")
1534
 
                            and prop._dbus_interface
1535
 
                            == if_tag.getAttribute("name")):
1536
 
                            annots.update(getattr(
1537
 
                                prop, "_dbus_annotations", {}))
1538
 
                    for name, value in annots.items():
1539
 
                        ann_tag = document.createElement(
1540
 
                            "annotation")
1541
 
                        ann_tag.setAttribute("name", name)
1542
 
                        ann_tag.setAttribute("value", value)
1543
 
                        tag.appendChild(ann_tag)
 
964
                # Add annotation tags
 
965
                for typ in ("method", "signal", "property"):
 
966
                    for tag in if_tag.getElementsByTagName(typ):
 
967
                        annots = dict()
 
968
                        for name, prop in (self.
 
969
                                           _get_all_dbus_things(typ)):
 
970
                            if (name == tag.getAttribute("name")
 
971
                                and prop._dbus_interface
 
972
                                == if_tag.getAttribute("name")):
 
973
                                annots.update(getattr
 
974
                                              (prop,
 
975
                                               "_dbus_annotations",
 
976
                                               {}))
 
977
                        for name, value in annots.iteritems():
 
978
                            ann_tag = document.createElement(
 
979
                                "annotation")
 
980
                            ann_tag.setAttribute("name", name)
 
981
                            ann_tag.setAttribute("value", value)
 
982
                            tag.appendChild(ann_tag)
 
983
                # Add interface annotation tags
 
984
                for annotation, value in dict(
 
985
                    itertools.chain.from_iterable(
 
986
                        annotations().iteritems()
 
987
                        for name, annotations in
 
988
                        self._get_all_dbus_things("interface")
 
989
                        if name == if_tag.getAttribute("name")
 
990
                        )).iteritems():
 
991
                    ann_tag = document.createElement("annotation")
 
992
                    ann_tag.setAttribute("name", annotation)
 
993
                    ann_tag.setAttribute("value", value)
 
994
                    if_tag.appendChild(ann_tag)
1544
995
                # Add the names to the return values for the
1545
996
                # "org.freedesktop.DBus.Properties" methods
1546
997
                if (if_tag.getAttribute("name")
1565
1016
        return xmlstring
1566
1017
 
1567
1018
 
1568
 
try:
1569
 
    dbus.OBJECT_MANAGER_IFACE
1570
 
except AttributeError:
1571
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1572
 
 
1573
 
 
1574
 
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1575
 
    """A D-Bus object with an ObjectManager.
1576
 
 
1577
 
    Classes inheriting from this exposes the standard
1578
 
    GetManagedObjects call and the InterfacesAdded and
1579
 
    InterfacesRemoved signals on the standard
1580
 
    "org.freedesktop.DBus.ObjectManager" interface.
1581
 
 
1582
 
    Note: No signals are sent automatically; they must be sent
1583
 
    manually.
1584
 
    """
1585
 
    @dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1586
 
                         out_signature="a{oa{sa{sv}}}")
1587
 
    def GetManagedObjects(self):
1588
 
        """This function must be overridden"""
1589
 
        raise NotImplementedError()
1590
 
 
1591
 
    @dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1592
 
                         signature="oa{sa{sv}}")
1593
 
    def InterfacesAdded(self, object_path, interfaces_and_properties):
1594
 
        pass
1595
 
 
1596
 
    @dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1597
 
    def InterfacesRemoved(self, object_path, interfaces):
1598
 
        pass
1599
 
 
1600
 
    @dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1601
 
                         out_signature="s",
1602
 
                         path_keyword="object_path",
1603
 
                         connection_keyword="connection")
1604
 
    def Introspect(self, object_path, connection):
1605
 
        """Overloading of standard D-Bus method.
1606
 
 
1607
 
        Override return argument name of GetManagedObjects to be
1608
 
        "objpath_interfaces_and_properties"
1609
 
        """
1610
 
        xmlstring = DBusObjectWithAnnotations.Introspect(self,
1611
 
                                                         object_path,
1612
 
                                                         connection)
1613
 
        try:
1614
 
            document = xml.dom.minidom.parseString(xmlstring)
1615
 
 
1616
 
            for if_tag in document.getElementsByTagName("interface"):
1617
 
                # Fix argument name for the GetManagedObjects method
1618
 
                if (if_tag.getAttribute("name")
1619
 
                    == dbus.OBJECT_MANAGER_IFACE):
1620
 
                    for cn in if_tag.getElementsByTagName("method"):
1621
 
                        if (cn.getAttribute("name")
1622
 
                            == "GetManagedObjects"):
1623
 
                            for arg in cn.getElementsByTagName("arg"):
1624
 
                                if (arg.getAttribute("direction")
1625
 
                                    == "out"):
1626
 
                                    arg.setAttribute(
1627
 
                                        "name",
1628
 
                                        "objpath_interfaces"
1629
 
                                        "_and_properties")
1630
 
            xmlstring = document.toxml("utf-8")
1631
 
            document.unlink()
1632
 
        except (AttributeError, xml.dom.DOMException,
1633
 
                xml.parsers.expat.ExpatError) as error:
1634
 
            logger.error("Failed to override Introspection method",
1635
 
                         exc_info=error)
1636
 
        return xmlstring
1637
 
 
1638
 
 
1639
1019
def datetime_to_dbus(dt, variant_level=0):
1640
1020
    """Convert a UTC datetime.datetime() to a D-Bus type."""
1641
1021
    if dt is None:
1642
 
        return dbus.String("", variant_level=variant_level)
1643
 
    return dbus.String(dt.isoformat(), variant_level=variant_level)
 
1022
        return dbus.String("", variant_level = variant_level)
 
1023
    return dbus.String(dt.isoformat(),
 
1024
                       variant_level=variant_level)
1644
1025
 
1645
1026
 
1646
1027
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1648
1029
    dbus.service.Object, it will add alternate D-Bus attributes with
1649
1030
    interface names according to the "alt_interface_names" mapping.
1650
1031
    Usage:
1651
 
 
 
1032
    
1652
1033
    @alternate_dbus_interfaces({"org.example.Interface":
1653
1034
                                    "net.example.AlternateInterface"})
1654
1035
    class SampleDBusObject(dbus.service.Object):
1655
1036
        @dbus.service.method("org.example.Interface")
1656
1037
        def SampleDBusMethod():
1657
1038
            pass
1658
 
 
 
1039
    
1659
1040
    The above "SampleDBusMethod" on "SampleDBusObject" will be
1660
1041
    reachable via two interfaces: "org.example.Interface" and
1661
1042
    "net.example.AlternateInterface", the latter of which will have
1662
1043
    its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1663
1044
    "true", unless "deprecate" is passed with a False value.
1664
 
 
 
1045
    
1665
1046
    This works for methods and signals, and also for D-Bus properties
1666
1047
    (from DBusObjectWithProperties) and interfaces (from the
1667
1048
    dbus_interface_annotations decorator).
1668
1049
    """
1669
 
 
1670
1050
    def wrapper(cls):
1671
1051
        for orig_interface_name, alt_interface_name in (
1672
 
                alt_interface_names.items()):
 
1052
            alt_interface_names.iteritems()):
1673
1053
            attr = {}
1674
1054
            interface_names = set()
1675
1055
            # Go though all attributes of the class
1677
1057
                # Ignore non-D-Bus attributes, and D-Bus attributes
1678
1058
                # with the wrong interface name
1679
1059
                if (not hasattr(attribute, "_dbus_interface")
1680
 
                    or not attribute._dbus_interface.startswith(
1681
 
                        orig_interface_name)):
 
1060
                    or not attribute._dbus_interface
 
1061
                    .startswith(orig_interface_name)):
1682
1062
                    continue
1683
1063
                # Create an alternate D-Bus interface name based on
1684
1064
                # the current name
1685
 
                alt_interface = attribute._dbus_interface.replace(
1686
 
                    orig_interface_name, alt_interface_name)
 
1065
                alt_interface = (attribute._dbus_interface
 
1066
                                 .replace(orig_interface_name,
 
1067
                                          alt_interface_name))
1687
1068
                interface_names.add(alt_interface)
1688
1069
                # Is this a D-Bus signal?
1689
1070
                if getattr(attribute, "_dbus_is_signal", False):
1690
 
                    # Extract the original non-method undecorated
1691
 
                    # function by black magic
1692
 
                    if sys.version_info.major == 2:
1693
 
                        nonmethod_func = (dict(
 
1071
                    # Extract the original non-method function by
 
1072
                    # black magic
 
1073
                    nonmethod_func = (dict(
1694
1074
                            zip(attribute.func_code.co_freevars,
1695
 
                                attribute.__closure__))
1696
 
                                          ["func"].cell_contents)
1697
 
                    else:
1698
 
                        nonmethod_func = (dict(
1699
 
                            zip(attribute.__code__.co_freevars,
1700
 
                                attribute.__closure__))
1701
 
                                          ["func"].cell_contents)
 
1075
                                attribute.__closure__))["func"]
 
1076
                                      .cell_contents)
1702
1077
                    # Create a new, but exactly alike, function
1703
1078
                    # object, and decorate it to be a new D-Bus signal
1704
1079
                    # with the alternate D-Bus interface name
1705
 
                    new_function = copy_function(nonmethod_func)
1706
 
                    new_function = (dbus.service.signal(
1707
 
                        alt_interface,
1708
 
                        attribute._dbus_signature)(new_function))
 
1080
                    new_function = (dbus.service.signal
 
1081
                                    (alt_interface,
 
1082
                                     attribute._dbus_signature)
 
1083
                                    (types.FunctionType(
 
1084
                                nonmethod_func.func_code,
 
1085
                                nonmethod_func.func_globals,
 
1086
                                nonmethod_func.func_name,
 
1087
                                nonmethod_func.func_defaults,
 
1088
                                nonmethod_func.func_closure)))
1709
1089
                    # Copy annotations, if any
1710
1090
                    try:
1711
 
                        new_function._dbus_annotations = dict(
1712
 
                            attribute._dbus_annotations)
 
1091
                        new_function._dbus_annotations = (
 
1092
                            dict(attribute._dbus_annotations))
1713
1093
                    except AttributeError:
1714
1094
                        pass
1715
 
 
1716
1095
                    # Define a creator of a function to call both the
1717
1096
                    # original and alternate functions, so both the
1718
1097
                    # original and alternate signals gets sent when
1721
1100
                        """This function is a scope container to pass
1722
1101
                        func1 and func2 to the "call_both" function
1723
1102
                        outside of its arguments"""
1724
 
 
1725
 
                        @functools.wraps(func2)
1726
1103
                        def call_both(*args, **kwargs):
1727
1104
                            """This function will emit two D-Bus
1728
1105
                            signals by calling func1 and func2"""
1729
1106
                            func1(*args, **kwargs)
1730
1107
                            func2(*args, **kwargs)
1731
 
                        # Make wrapper function look like a D-Bus
1732
 
                        # signal
1733
 
                        for name, attr in inspect.getmembers(func2):
1734
 
                            if name.startswith("_dbus_"):
1735
 
                                setattr(call_both, name, attr)
1736
 
 
1737
1108
                        return call_both
1738
1109
                    # Create the "call_both" function and add it to
1739
1110
                    # the class
1744
1115
                    # object.  Decorate it to be a new D-Bus method
1745
1116
                    # with the alternate D-Bus interface name.  Add it
1746
1117
                    # to the class.
1747
 
                    attr[attrname] = (
1748
 
                        dbus.service.method(
1749
 
                            alt_interface,
1750
 
                            attribute._dbus_in_signature,
1751
 
                            attribute._dbus_out_signature)
1752
 
                        (copy_function(attribute)))
 
1118
                    attr[attrname] = (dbus.service.method
 
1119
                                      (alt_interface,
 
1120
                                       attribute._dbus_in_signature,
 
1121
                                       attribute._dbus_out_signature)
 
1122
                                      (types.FunctionType
 
1123
                                       (attribute.func_code,
 
1124
                                        attribute.func_globals,
 
1125
                                        attribute.func_name,
 
1126
                                        attribute.func_defaults,
 
1127
                                        attribute.func_closure)))
1753
1128
                    # Copy annotations, if any
1754
1129
                    try:
1755
 
                        attr[attrname]._dbus_annotations = dict(
1756
 
                            attribute._dbus_annotations)
 
1130
                        attr[attrname]._dbus_annotations = (
 
1131
                            dict(attribute._dbus_annotations))
1757
1132
                    except AttributeError:
1758
1133
                        pass
1759
1134
                # Is this a D-Bus property?
1762
1137
                    # object, and decorate it to be a new D-Bus
1763
1138
                    # property with the alternate D-Bus interface
1764
1139
                    # name.  Add it to the class.
1765
 
                    attr[attrname] = (dbus_service_property(
1766
 
                        alt_interface, attribute._dbus_signature,
1767
 
                        attribute._dbus_access,
1768
 
                        attribute._dbus_get_args_options
1769
 
                        ["byte_arrays"])
1770
 
                                      (copy_function(attribute)))
 
1140
                    attr[attrname] = (dbus_service_property
 
1141
                                      (alt_interface,
 
1142
                                       attribute._dbus_signature,
 
1143
                                       attribute._dbus_access,
 
1144
                                       attribute
 
1145
                                       ._dbus_get_args_options
 
1146
                                       ["byte_arrays"])
 
1147
                                      (types.FunctionType
 
1148
                                       (attribute.func_code,
 
1149
                                        attribute.func_globals,
 
1150
                                        attribute.func_name,
 
1151
                                        attribute.func_defaults,
 
1152
                                        attribute.func_closure)))
1771
1153
                    # Copy annotations, if any
1772
1154
                    try:
1773
 
                        attr[attrname]._dbus_annotations = dict(
1774
 
                            attribute._dbus_annotations)
 
1155
                        attr[attrname]._dbus_annotations = (
 
1156
                            dict(attribute._dbus_annotations))
1775
1157
                    except AttributeError:
1776
1158
                        pass
1777
1159
                # Is this a D-Bus interface?
1780
1162
                    # object.  Decorate it to be a new D-Bus interface
1781
1163
                    # with the alternate D-Bus interface name.  Add it
1782
1164
                    # to the class.
1783
 
                    attr[attrname] = (
1784
 
                        dbus_interface_annotations(alt_interface)
1785
 
                        (copy_function(attribute)))
 
1165
                    attr[attrname] = (dbus_interface_annotations
 
1166
                                      (alt_interface)
 
1167
                                      (types.FunctionType
 
1168
                                       (attribute.func_code,
 
1169
                                        attribute.func_globals,
 
1170
                                        attribute.func_name,
 
1171
                                        attribute.func_defaults,
 
1172
                                        attribute.func_closure)))
1786
1173
            if deprecate:
1787
1174
                # Deprecate all alternate interfaces
1788
 
                iname = "_AlternateDBusNames_interface_annotation{}"
 
1175
                iname="_AlternateDBusNames_interface_annotation{0}"
1789
1176
                for interface_name in interface_names:
1790
 
 
1791
1177
                    @dbus_interface_annotations(interface_name)
1792
1178
                    def func(self):
1793
 
                        return {"org.freedesktop.DBus.Deprecated":
1794
 
                                "true"}
 
1179
                        return { "org.freedesktop.DBus.Deprecated":
 
1180
                                     "true" }
1795
1181
                    # Find an unused name
1796
1182
                    for aname in (iname.format(i)
1797
1183
                                  for i in itertools.count()):
1801
1187
            if interface_names:
1802
1188
                # Replace the class with a new subclass of it with
1803
1189
                # methods, signals, etc. as created above.
1804
 
                if sys.version_info.major == 2:
1805
 
                    cls = type(b"{}Alternate".format(cls.__name__),
1806
 
                               (cls, ), attr)
1807
 
                else:
1808
 
                    cls = type("{}Alternate".format(cls.__name__),
1809
 
                               (cls, ), attr)
 
1190
                cls = type(b"{0}Alternate".format(cls.__name__),
 
1191
                           (cls,), attr)
1810
1192
        return cls
1811
 
 
1812
1193
    return wrapper
1813
1194
 
1814
1195
 
1815
1196
@alternate_dbus_interfaces({"se.recompile.Mandos":
1816
 
                            "se.bsnet.fukt.Mandos"})
 
1197
                                "se.bsnet.fukt.Mandos"})
1817
1198
class ClientDBus(Client, DBusObjectWithProperties):
1818
1199
    """A Client class using D-Bus
1819
 
 
 
1200
    
1820
1201
    Attributes:
1821
1202
    dbus_object_path: dbus.ObjectPath
1822
1203
    bus: dbus.SystemBus()
1823
1204
    """
1824
 
 
 
1205
    
1825
1206
    runtime_expansions = (Client.runtime_expansions
1826
 
                          + ("dbus_object_path", ))
1827
 
 
1828
 
    _interface = "se.recompile.Mandos.Client"
1829
 
 
 
1207
                          + ("dbus_object_path",))
 
1208
    
1830
1209
    # dbus.service.Object doesn't use super(), so we can't either.
1831
 
 
1832
 
    def __init__(self, bus=None, *args, **kwargs):
 
1210
    
 
1211
    def __init__(self, bus = None, *args, **kwargs):
1833
1212
        self.bus = bus
1834
1213
        Client.__init__(self, *args, **kwargs)
1835
1214
        # Only now, when this client is initialized, can it show up on
1836
1215
        # the D-Bus
1837
 
        client_object_name = str(self.name).translate(
 
1216
        client_object_name = unicode(self.name).translate(
1838
1217
            {ord("."): ord("_"),
1839
1218
             ord("-"): ord("_")})
1840
 
        self.dbus_object_path = dbus.ObjectPath(
1841
 
            "/clients/" + client_object_name)
 
1219
        self.dbus_object_path = (dbus.ObjectPath
 
1220
                                 ("/clients/" + client_object_name))
1842
1221
        DBusObjectWithProperties.__init__(self, self.bus,
1843
1222
                                          self.dbus_object_path)
1844
 
 
1845
 
    def notifychangeproperty(transform_func, dbus_name,
1846
 
                             type_func=lambda x: x,
1847
 
                             variant_level=1,
1848
 
                             invalidate_only=False,
1849
 
                             _interface=_interface):
 
1223
    
 
1224
    def notifychangeproperty(transform_func,
 
1225
                             dbus_name, type_func=lambda x: x,
 
1226
                             variant_level=1):
1850
1227
        """ Modify a variable so that it's a property which announces
1851
1228
        its changes to DBus.
1852
 
 
 
1229
        
1853
1230
        transform_fun: Function that takes a value and a variant_level
1854
1231
                       and transforms it to a D-Bus type.
1855
1232
        dbus_name: D-Bus name of the variable
1857
1234
                   to the D-Bus.  Default: no transform
1858
1235
        variant_level: D-Bus variant level.  Default: 1
1859
1236
        """
1860
 
        attrname = "_{}".format(dbus_name)
1861
 
 
 
1237
        attrname = "_{0}".format(dbus_name)
1862
1238
        def setter(self, value):
1863
1239
            if hasattr(self, "dbus_object_path"):
1864
1240
                if (not hasattr(self, attrname) or
1865
1241
                    type_func(getattr(self, attrname, None))
1866
1242
                    != type_func(value)):
1867
 
                    if invalidate_only:
1868
 
                        self.PropertiesChanged(
1869
 
                            _interface, dbus.Dictionary(),
1870
 
                            dbus.Array((dbus_name, )))
1871
 
                    else:
1872
 
                        dbus_value = transform_func(
1873
 
                            type_func(value),
1874
 
                            variant_level=variant_level)
1875
 
                        self.PropertyChanged(dbus.String(dbus_name),
1876
 
                                             dbus_value)
1877
 
                        self.PropertiesChanged(
1878
 
                            _interface,
1879
 
                            dbus.Dictionary({dbus.String(dbus_name):
1880
 
                                             dbus_value}),
1881
 
                            dbus.Array())
 
1243
                    dbus_value = transform_func(type_func(value),
 
1244
                                                variant_level
 
1245
                                                =variant_level)
 
1246
                    self.PropertyChanged(dbus.String(dbus_name),
 
1247
                                         dbus_value)
1882
1248
            setattr(self, attrname, value)
1883
 
 
 
1249
        
1884
1250
        return property(lambda self: getattr(self, attrname), setter)
1885
 
 
 
1251
    
1886
1252
    expires = notifychangeproperty(datetime_to_dbus, "Expires")
1887
1253
    approvals_pending = notifychangeproperty(dbus.Boolean,
1888
1254
                                             "ApprovalPending",
1889
 
                                             type_func=bool)
 
1255
                                             type_func = bool)
1890
1256
    enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1891
1257
    last_enabled = notifychangeproperty(datetime_to_dbus,
1892
1258
                                        "LastEnabled")
1893
 
    checker = notifychangeproperty(
1894
 
        dbus.Boolean, "CheckerRunning",
1895
 
        type_func=lambda checker: checker is not None)
 
1259
    checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
 
1260
                                   type_func = lambda checker:
 
1261
                                       checker is not None)
1896
1262
    last_checked_ok = notifychangeproperty(datetime_to_dbus,
1897
1263
                                           "LastCheckedOK")
1898
1264
    last_checker_status = notifychangeproperty(dbus.Int16,
1901
1267
        datetime_to_dbus, "LastApprovalRequest")
1902
1268
    approved_by_default = notifychangeproperty(dbus.Boolean,
1903
1269
                                               "ApprovedByDefault")
1904
 
    approval_delay = notifychangeproperty(
1905
 
        dbus.UInt64, "ApprovalDelay",
1906
 
        type_func=lambda td: td.total_seconds() * 1000)
 
1270
    approval_delay = notifychangeproperty(dbus.UInt64,
 
1271
                                          "ApprovalDelay",
 
1272
                                          type_func =
 
1273
                                          timedelta_to_milliseconds)
1907
1274
    approval_duration = notifychangeproperty(
1908
1275
        dbus.UInt64, "ApprovalDuration",
1909
 
        type_func=lambda td: td.total_seconds() * 1000)
 
1276
        type_func = timedelta_to_milliseconds)
1910
1277
    host = notifychangeproperty(dbus.String, "Host")
1911
 
    timeout = notifychangeproperty(
1912
 
        dbus.UInt64, "Timeout",
1913
 
        type_func=lambda td: td.total_seconds() * 1000)
 
1278
    timeout = notifychangeproperty(dbus.UInt64, "Timeout",
 
1279
                                   type_func =
 
1280
                                   timedelta_to_milliseconds)
1914
1281
    extended_timeout = notifychangeproperty(
1915
1282
        dbus.UInt64, "ExtendedTimeout",
1916
 
        type_func=lambda td: td.total_seconds() * 1000)
1917
 
    interval = notifychangeproperty(
1918
 
        dbus.UInt64, "Interval",
1919
 
        type_func=lambda td: td.total_seconds() * 1000)
 
1283
        type_func = timedelta_to_milliseconds)
 
1284
    interval = notifychangeproperty(dbus.UInt64,
 
1285
                                    "Interval",
 
1286
                                    type_func =
 
1287
                                    timedelta_to_milliseconds)
1920
1288
    checker_command = notifychangeproperty(dbus.String, "Checker")
1921
 
    secret = notifychangeproperty(dbus.ByteArray, "Secret",
1922
 
                                  invalidate_only=True)
1923
 
 
 
1289
    
1924
1290
    del notifychangeproperty
1925
 
 
 
1291
    
1926
1292
    def __del__(self, *args, **kwargs):
1927
1293
        try:
1928
1294
            self.remove_from_connection()
1931
1297
        if hasattr(DBusObjectWithProperties, "__del__"):
1932
1298
            DBusObjectWithProperties.__del__(self, *args, **kwargs)
1933
1299
        Client.__del__(self, *args, **kwargs)
1934
 
 
1935
 
    def checker_callback(self, source, condition,
1936
 
                         connection, command, *args, **kwargs):
1937
 
        ret = Client.checker_callback(self, source, condition,
1938
 
                                      connection, command, *args,
1939
 
                                      **kwargs)
1940
 
        exitstatus = self.last_checker_status
1941
 
        if exitstatus >= 0:
 
1300
    
 
1301
    def checker_callback(self, pid, condition, command,
 
1302
                         *args, **kwargs):
 
1303
        self.checker_callback_tag = None
 
1304
        self.checker = None
 
1305
        if os.WIFEXITED(condition):
 
1306
            exitstatus = os.WEXITSTATUS(condition)
1942
1307
            # Emit D-Bus signal
1943
1308
            self.CheckerCompleted(dbus.Int16(exitstatus),
1944
 
                                  # This is specific to GNU libC
1945
 
                                  dbus.Int64(exitstatus << 8),
 
1309
                                  dbus.Int64(condition),
1946
1310
                                  dbus.String(command))
1947
1311
        else:
1948
1312
            # Emit D-Bus signal
1949
1313
            self.CheckerCompleted(dbus.Int16(-1),
1950
 
                                  dbus.Int64(
1951
 
                                      # This is specific to GNU libC
1952
 
                                      (exitstatus << 8)
1953
 
                                      | self.last_checker_signal),
 
1314
                                  dbus.Int64(condition),
1954
1315
                                  dbus.String(command))
1955
 
        return ret
1956
 
 
 
1316
        
 
1317
        return Client.checker_callback(self, pid, condition, command,
 
1318
                                       *args, **kwargs)
 
1319
    
1957
1320
    def start_checker(self, *args, **kwargs):
1958
 
        old_checker_pid = getattr(self.checker, "pid", None)
 
1321
        old_checker = self.checker
 
1322
        if self.checker is not None:
 
1323
            old_checker_pid = self.checker.pid
 
1324
        else:
 
1325
            old_checker_pid = None
1959
1326
        r = Client.start_checker(self, *args, **kwargs)
1960
1327
        # Only if new checker process was started
1961
1328
        if (self.checker is not None
1963
1330
            # Emit D-Bus signal
1964
1331
            self.CheckerStarted(self.current_checker_command)
1965
1332
        return r
1966
 
 
 
1333
    
1967
1334
    def _reset_approved(self):
1968
1335
        self.approved = None
1969
1336
        return False
1970
 
 
 
1337
    
1971
1338
    def approve(self, value=True):
1972
1339
        self.approved = value
1973
 
        GLib.timeout_add(int(self.approval_duration.total_seconds()
1974
 
                             * 1000), self._reset_approved)
 
1340
        gobject.timeout_add(timedelta_to_milliseconds
 
1341
                            (self.approval_duration),
 
1342
                            self._reset_approved)
1975
1343
        self.send_changedstate()
1976
 
 
1977
 
    #  D-Bus methods, signals & properties
1978
 
 
1979
 
    #  Interfaces
1980
 
 
1981
 
    #  Signals
1982
 
 
 
1344
    
 
1345
    ## D-Bus methods, signals & properties
 
1346
    _interface = "se.recompile.Mandos.Client"
 
1347
    
 
1348
    ## Interfaces
 
1349
    
 
1350
    @dbus_interface_annotations(_interface)
 
1351
    def _foo(self):
 
1352
        return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
 
1353
                     "false"}
 
1354
    
 
1355
    ## Signals
 
1356
    
1983
1357
    # CheckerCompleted - signal
1984
1358
    @dbus.service.signal(_interface, signature="nxs")
1985
1359
    def CheckerCompleted(self, exitcode, waitstatus, command):
1986
1360
        "D-Bus signal"
1987
1361
        pass
1988
 
 
 
1362
    
1989
1363
    # CheckerStarted - signal
1990
1364
    @dbus.service.signal(_interface, signature="s")
1991
1365
    def CheckerStarted(self, command):
1992
1366
        "D-Bus signal"
1993
1367
        pass
1994
 
 
 
1368
    
1995
1369
    # PropertyChanged - signal
1996
 
    @dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1997
1370
    @dbus.service.signal(_interface, signature="sv")
1998
1371
    def PropertyChanged(self, property, value):
1999
1372
        "D-Bus signal"
2000
1373
        pass
2001
 
 
 
1374
    
2002
1375
    # GotSecret - signal
2003
1376
    @dbus.service.signal(_interface)
2004
1377
    def GotSecret(self):
2007
1380
        server to mandos-client
2008
1381
        """
2009
1382
        pass
2010
 
 
 
1383
    
2011
1384
    # Rejected - signal
2012
1385
    @dbus.service.signal(_interface, signature="s")
2013
1386
    def Rejected(self, reason):
2014
1387
        "D-Bus signal"
2015
1388
        pass
2016
 
 
 
1389
    
2017
1390
    # NeedApproval - signal
2018
1391
    @dbus.service.signal(_interface, signature="tb")
2019
1392
    def NeedApproval(self, timeout, default):
2020
1393
        "D-Bus signal"
2021
1394
        return self.need_approval()
2022
 
 
2023
 
    #  Methods
2024
 
 
 
1395
    
 
1396
    ## Methods
 
1397
    
2025
1398
    # Approve - method
2026
1399
    @dbus.service.method(_interface, in_signature="b")
2027
1400
    def Approve(self, value):
2028
1401
        self.approve(value)
2029
 
 
 
1402
    
2030
1403
    # CheckedOK - method
2031
1404
    @dbus.service.method(_interface)
2032
1405
    def CheckedOK(self):
2033
1406
        self.checked_ok()
2034
 
 
 
1407
    
2035
1408
    # Enable - method
2036
 
    @dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2037
1409
    @dbus.service.method(_interface)
2038
1410
    def Enable(self):
2039
1411
        "D-Bus method"
2040
1412
        self.enable()
2041
 
 
 
1413
    
2042
1414
    # StartChecker - method
2043
 
    @dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2044
1415
    @dbus.service.method(_interface)
2045
1416
    def StartChecker(self):
2046
1417
        "D-Bus method"
2047
1418
        self.start_checker()
2048
 
 
 
1419
    
2049
1420
    # Disable - method
2050
 
    @dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2051
1421
    @dbus.service.method(_interface)
2052
1422
    def Disable(self):
2053
1423
        "D-Bus method"
2054
1424
        self.disable()
2055
 
 
 
1425
    
2056
1426
    # StopChecker - method
2057
 
    @dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2058
1427
    @dbus.service.method(_interface)
2059
1428
    def StopChecker(self):
2060
1429
        self.stop_checker()
2061
 
 
2062
 
    #  Properties
2063
 
 
 
1430
    
 
1431
    ## Properties
 
1432
    
2064
1433
    # ApprovalPending - property
2065
1434
    @dbus_service_property(_interface, signature="b", access="read")
2066
1435
    def ApprovalPending_dbus_property(self):
2067
1436
        return dbus.Boolean(bool(self.approvals_pending))
2068
 
 
 
1437
    
2069
1438
    # ApprovedByDefault - property
2070
 
    @dbus_service_property(_interface,
2071
 
                           signature="b",
 
1439
    @dbus_service_property(_interface, signature="b",
2072
1440
                           access="readwrite")
2073
1441
    def ApprovedByDefault_dbus_property(self, value=None):
2074
1442
        if value is None:       # get
2075
1443
            return dbus.Boolean(self.approved_by_default)
2076
1444
        self.approved_by_default = bool(value)
2077
 
 
 
1445
    
2078
1446
    # ApprovalDelay - property
2079
 
    @dbus_service_property(_interface,
2080
 
                           signature="t",
 
1447
    @dbus_service_property(_interface, signature="t",
2081
1448
                           access="readwrite")
2082
1449
    def ApprovalDelay_dbus_property(self, value=None):
2083
1450
        if value is None:       # get
2084
 
            return dbus.UInt64(self.approval_delay.total_seconds()
2085
 
                               * 1000)
 
1451
            return dbus.UInt64(self.approval_delay_milliseconds())
2086
1452
        self.approval_delay = datetime.timedelta(0, 0, 0, value)
2087
 
 
 
1453
    
2088
1454
    # ApprovalDuration - property
2089
 
    @dbus_service_property(_interface,
2090
 
                           signature="t",
 
1455
    @dbus_service_property(_interface, signature="t",
2091
1456
                           access="readwrite")
2092
1457
    def ApprovalDuration_dbus_property(self, value=None):
2093
1458
        if value is None:       # get
2094
 
            return dbus.UInt64(self.approval_duration.total_seconds()
2095
 
                               * 1000)
 
1459
            return dbus.UInt64(timedelta_to_milliseconds(
 
1460
                    self.approval_duration))
2096
1461
        self.approval_duration = datetime.timedelta(0, 0, 0, value)
2097
 
 
 
1462
    
2098
1463
    # Name - property
2099
 
    @dbus_annotations(
2100
 
        {"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2101
1464
    @dbus_service_property(_interface, signature="s", access="read")
2102
1465
    def Name_dbus_property(self):
2103
1466
        return dbus.String(self.name)
2104
 
 
2105
 
    # KeyID - property
2106
 
    @dbus_annotations(
2107
 
        {"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2108
 
    @dbus_service_property(_interface, signature="s", access="read")
2109
 
    def KeyID_dbus_property(self):
2110
 
        return dbus.String(self.key_id)
2111
 
 
 
1467
    
2112
1468
    # Fingerprint - property
2113
 
    @dbus_annotations(
2114
 
        {"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2115
1469
    @dbus_service_property(_interface, signature="s", access="read")
2116
1470
    def Fingerprint_dbus_property(self):
2117
1471
        return dbus.String(self.fingerprint)
2118
 
 
 
1472
    
2119
1473
    # Host - property
2120
 
    @dbus_service_property(_interface,
2121
 
                           signature="s",
 
1474
    @dbus_service_property(_interface, signature="s",
2122
1475
                           access="readwrite")
2123
1476
    def Host_dbus_property(self, value=None):
2124
1477
        if value is None:       # get
2125
1478
            return dbus.String(self.host)
2126
 
        self.host = str(value)
2127
 
 
 
1479
        self.host = unicode(value)
 
1480
    
2128
1481
    # Created - property
2129
 
    @dbus_annotations(
2130
 
        {"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2131
1482
    @dbus_service_property(_interface, signature="s", access="read")
2132
1483
    def Created_dbus_property(self):
2133
1484
        return datetime_to_dbus(self.created)
2134
 
 
 
1485
    
2135
1486
    # LastEnabled - property
2136
1487
    @dbus_service_property(_interface, signature="s", access="read")
2137
1488
    def LastEnabled_dbus_property(self):
2138
1489
        return datetime_to_dbus(self.last_enabled)
2139
 
 
 
1490
    
2140
1491
    # Enabled - property
2141
 
    @dbus_service_property(_interface,
2142
 
                           signature="b",
 
1492
    @dbus_service_property(_interface, signature="b",
2143
1493
                           access="readwrite")
2144
1494
    def Enabled_dbus_property(self, value=None):
2145
1495
        if value is None:       # get
2148
1498
            self.enable()
2149
1499
        else:
2150
1500
            self.disable()
2151
 
 
 
1501
    
2152
1502
    # LastCheckedOK - property
2153
 
    @dbus_service_property(_interface,
2154
 
                           signature="s",
 
1503
    @dbus_service_property(_interface, signature="s",
2155
1504
                           access="readwrite")
2156
1505
    def LastCheckedOK_dbus_property(self, value=None):
2157
1506
        if value is not None:
2158
1507
            self.checked_ok()
2159
1508
            return
2160
1509
        return datetime_to_dbus(self.last_checked_ok)
2161
 
 
 
1510
    
2162
1511
    # LastCheckerStatus - property
2163
 
    @dbus_service_property(_interface, signature="n", access="read")
 
1512
    @dbus_service_property(_interface, signature="n",
 
1513
                           access="read")
2164
1514
    def LastCheckerStatus_dbus_property(self):
2165
1515
        return dbus.Int16(self.last_checker_status)
2166
 
 
 
1516
    
2167
1517
    # Expires - property
2168
1518
    @dbus_service_property(_interface, signature="s", access="read")
2169
1519
    def Expires_dbus_property(self):
2170
1520
        return datetime_to_dbus(self.expires)
2171
 
 
 
1521
    
2172
1522
    # LastApprovalRequest - property
2173
1523
    @dbus_service_property(_interface, signature="s", access="read")
2174
1524
    def LastApprovalRequest_dbus_property(self):
2175
1525
        return datetime_to_dbus(self.last_approval_request)
2176
 
 
 
1526
    
2177
1527
    # Timeout - property
2178
 
    @dbus_service_property(_interface,
2179
 
                           signature="t",
 
1528
    @dbus_service_property(_interface, signature="t",
2180
1529
                           access="readwrite")
2181
1530
    def Timeout_dbus_property(self, value=None):
2182
1531
        if value is None:       # get
2183
 
            return dbus.UInt64(self.timeout.total_seconds() * 1000)
 
1532
            return dbus.UInt64(self.timeout_milliseconds())
2184
1533
        old_timeout = self.timeout
2185
1534
        self.timeout = datetime.timedelta(0, 0, 0, value)
2186
1535
        # Reschedule disabling
2194
1543
                if (getattr(self, "disable_initiator_tag", None)
2195
1544
                    is None):
2196
1545
                    return
2197
 
                GLib.source_remove(self.disable_initiator_tag)
2198
 
                self.disable_initiator_tag = GLib.timeout_add(
2199
 
                    int((self.expires - now).total_seconds() * 1000),
2200
 
                    self.disable)
2201
 
 
 
1546
                gobject.source_remove(self.disable_initiator_tag)
 
1547
                self.disable_initiator_tag = (
 
1548
                    gobject.timeout_add(
 
1549
                        timedelta_to_milliseconds(self.expires - now),
 
1550
                        self.disable))
 
1551
    
2202
1552
    # ExtendedTimeout - property
2203
 
    @dbus_service_property(_interface,
2204
 
                           signature="t",
 
1553
    @dbus_service_property(_interface, signature="t",
2205
1554
                           access="readwrite")
2206
1555
    def ExtendedTimeout_dbus_property(self, value=None):
2207
1556
        if value is None:       # get
2208
 
            return dbus.UInt64(self.extended_timeout.total_seconds()
2209
 
                               * 1000)
 
1557
            return dbus.UInt64(self.extended_timeout_milliseconds())
2210
1558
        self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2211
 
 
 
1559
    
2212
1560
    # Interval - property
2213
 
    @dbus_service_property(_interface,
2214
 
                           signature="t",
 
1561
    @dbus_service_property(_interface, signature="t",
2215
1562
                           access="readwrite")
2216
1563
    def Interval_dbus_property(self, value=None):
2217
1564
        if value is None:       # get
2218
 
            return dbus.UInt64(self.interval.total_seconds() * 1000)
 
1565
            return dbus.UInt64(self.interval_milliseconds())
2219
1566
        self.interval = datetime.timedelta(0, 0, 0, value)
2220
1567
        if getattr(self, "checker_initiator_tag", None) is None:
2221
1568
            return
2222
1569
        if self.enabled:
2223
1570
            # Reschedule checker run
2224
 
            GLib.source_remove(self.checker_initiator_tag)
2225
 
            self.checker_initiator_tag = GLib.timeout_add(
2226
 
                value, self.start_checker)
2227
 
            self.start_checker()  # Start one now, too
2228
 
 
 
1571
            gobject.source_remove(self.checker_initiator_tag)
 
1572
            self.checker_initiator_tag = (gobject.timeout_add
 
1573
                                          (value, self.start_checker))
 
1574
            self.start_checker()    # Start one now, too
 
1575
    
2229
1576
    # Checker - property
2230
 
    @dbus_service_property(_interface,
2231
 
                           signature="s",
 
1577
    @dbus_service_property(_interface, signature="s",
2232
1578
                           access="readwrite")
2233
1579
    def Checker_dbus_property(self, value=None):
2234
1580
        if value is None:       # get
2235
1581
            return dbus.String(self.checker_command)
2236
 
        self.checker_command = str(value)
2237
 
 
 
1582
        self.checker_command = unicode(value)
 
1583
    
2238
1584
    # CheckerRunning - property
2239
 
    @dbus_service_property(_interface,
2240
 
                           signature="b",
 
1585
    @dbus_service_property(_interface, signature="b",
2241
1586
                           access="readwrite")
2242
1587
    def CheckerRunning_dbus_property(self, value=None):
2243
1588
        if value is None:       # get
2246
1591
            self.start_checker()
2247
1592
        else:
2248
1593
            self.stop_checker()
2249
 
 
 
1594
    
2250
1595
    # ObjectPath - property
2251
 
    @dbus_annotations(
2252
 
        {"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2253
 
         "org.freedesktop.DBus.Deprecated": "true"})
2254
1596
    @dbus_service_property(_interface, signature="o", access="read")
2255
1597
    def ObjectPath_dbus_property(self):
2256
 
        return self.dbus_object_path  # is already a dbus.ObjectPath
2257
 
 
 
1598
        return self.dbus_object_path # is already a dbus.ObjectPath
 
1599
    
2258
1600
    # Secret = property
2259
 
    @dbus_annotations(
2260
 
        {"org.freedesktop.DBus.Property.EmitsChangedSignal":
2261
 
         "invalidates"})
2262
 
    @dbus_service_property(_interface,
2263
 
                           signature="ay",
2264
 
                           access="write",
2265
 
                           byte_arrays=True)
 
1601
    @dbus_service_property(_interface, signature="ay",
 
1602
                           access="write", byte_arrays=True)
2266
1603
    def Secret_dbus_property(self, value):
2267
 
        self.secret = bytes(value)
2268
 
 
 
1604
        self.secret = str(value)
 
1605
    
2269
1606
    del _interface
2270
1607
 
2271
1608
 
2272
 
class ProxyClient:
2273
 
    def __init__(self, child_pipe, key_id, fpr, address):
 
1609
class ProxyClient(object):
 
1610
    def __init__(self, child_pipe, fpr, address):
2274
1611
        self._pipe = child_pipe
2275
 
        self._pipe.send(("init", key_id, fpr, address))
 
1612
        self._pipe.send(('init', fpr, address))
2276
1613
        if not self._pipe.recv():
2277
 
            raise KeyError(key_id or fpr)
2278
 
 
 
1614
            raise KeyError()
 
1615
    
2279
1616
    def __getattribute__(self, name):
2280
 
        if name == "_pipe":
 
1617
        if name == '_pipe':
2281
1618
            return super(ProxyClient, self).__getattribute__(name)
2282
 
        self._pipe.send(("getattr", name))
 
1619
        self._pipe.send(('getattr', name))
2283
1620
        data = self._pipe.recv()
2284
 
        if data[0] == "data":
 
1621
        if data[0] == 'data':
2285
1622
            return data[1]
2286
 
        if data[0] == "function":
2287
 
 
 
1623
        if data[0] == 'function':
2288
1624
            def func(*args, **kwargs):
2289
 
                self._pipe.send(("funcall", name, args, kwargs))
 
1625
                self._pipe.send(('funcall', name, args, kwargs))
2290
1626
                return self._pipe.recv()[1]
2291
 
 
2292
1627
            return func
2293
 
 
 
1628
    
2294
1629
    def __setattr__(self, name, value):
2295
 
        if name == "_pipe":
 
1630
        if name == '_pipe':
2296
1631
            return super(ProxyClient, self).__setattr__(name, value)
2297
 
        self._pipe.send(("setattr", name, value))
 
1632
        self._pipe.send(('setattr', name, value))
2298
1633
 
2299
1634
 
2300
1635
class ClientHandler(socketserver.BaseRequestHandler, object):
2301
1636
    """A class to handle client connections.
2302
 
 
 
1637
    
2303
1638
    Instantiated once for each connection to handle it.
2304
1639
    Note: This will run in its own forked process."""
2305
 
 
 
1640
    
2306
1641
    def handle(self):
2307
1642
        with contextlib.closing(self.server.child_pipe) as child_pipe:
2308
1643
            logger.info("TCP connection from: %s",
2309
 
                        str(self.client_address))
 
1644
                        unicode(self.client_address))
2310
1645
            logger.debug("Pipe FD: %d",
2311
1646
                         self.server.child_pipe.fileno())
2312
 
 
2313
 
            session = gnutls.ClientSession(self.request)
2314
 
 
2315
 
            # priority = ":".join(("NONE", "+VERS-TLS1.1",
2316
 
            #                       "+AES-256-CBC", "+SHA1",
2317
 
            #                       "+COMP-NULL", "+CTYPE-OPENPGP",
2318
 
            #                       "+DHE-DSS"))
 
1647
            
 
1648
            session = (gnutls.connection
 
1649
                       .ClientSession(self.request,
 
1650
                                      gnutls.connection
 
1651
                                      .X509Credentials()))
 
1652
            
 
1653
            # Note: gnutls.connection.X509Credentials is really a
 
1654
            # generic GnuTLS certificate credentials object so long as
 
1655
            # no X.509 keys are added to it.  Therefore, we can use it
 
1656
            # here despite using OpenPGP certificates.
 
1657
            
 
1658
            #priority = ':'.join(("NONE", "+VERS-TLS1.1",
 
1659
            #                      "+AES-256-CBC", "+SHA1",
 
1660
            #                      "+COMP-NULL", "+CTYPE-OPENPGP",
 
1661
            #                      "+DHE-DSS"))
2319
1662
            # Use a fallback default, since this MUST be set.
2320
1663
            priority = self.server.gnutls_priority
2321
1664
            if priority is None:
2322
1665
                priority = "NORMAL"
2323
 
            gnutls.priority_set_direct(session,
2324
 
                                       priority.encode("utf-8"), None)
2325
 
 
 
1666
            (gnutls.library.functions
 
1667
             .gnutls_priority_set_direct(session._c_object,
 
1668
                                         priority, None))
 
1669
            
2326
1670
            # Start communication using the Mandos protocol
2327
1671
            # Get protocol number
2328
1672
            line = self.request.makefile().readline()
2329
1673
            logger.debug("Protocol version: %r", line)
2330
1674
            try:
2331
1675
                if int(line.strip().split()[0]) > 1:
2332
 
                    raise RuntimeError(line)
 
1676
                    raise RuntimeError
2333
1677
            except (ValueError, IndexError, RuntimeError) as error:
2334
1678
                logger.error("Unknown protocol version: %s", error)
2335
1679
                return
2336
 
 
 
1680
            
2337
1681
            # Start GnuTLS connection
2338
1682
            try:
2339
1683
                session.handshake()
2340
 
            except gnutls.Error as error:
 
1684
            except gnutls.errors.GNUTLSError as error:
2341
1685
                logger.warning("Handshake failed: %s", error)
2342
1686
                # Do not run session.bye() here: the session is not
2343
1687
                # established.  Just abandon the request.
2344
1688
                return
2345
1689
            logger.debug("Handshake succeeded")
2346
 
 
 
1690
            
2347
1691
            approval_required = False
2348
1692
            try:
2349
 
                if gnutls.has_rawpk:
2350
 
                    fpr = b""
2351
 
                    try:
2352
 
                        key_id = self.key_id(
2353
 
                            self.peer_certificate(session))
2354
 
                    except (TypeError, gnutls.Error) as error:
2355
 
                        logger.warning("Bad certificate: %s", error)
2356
 
                        return
2357
 
                    logger.debug("Key ID: %s",
2358
 
                                 key_id.decode("utf-8",
2359
 
                                               errors="replace"))
2360
 
 
2361
 
                else:
2362
 
                    key_id = b""
2363
 
                    try:
2364
 
                        fpr = self.fingerprint(
2365
 
                            self.peer_certificate(session))
2366
 
                    except (TypeError, gnutls.Error) as error:
2367
 
                        logger.warning("Bad certificate: %s", error)
2368
 
                        return
2369
 
                    logger.debug("Fingerprint: %s", fpr)
2370
 
 
2371
 
                try:
2372
 
                    client = ProxyClient(child_pipe, key_id, fpr,
 
1693
                try:
 
1694
                    fpr = self.fingerprint(self.peer_certificate
 
1695
                                           (session))
 
1696
                except (TypeError,
 
1697
                        gnutls.errors.GNUTLSError) as error:
 
1698
                    logger.warning("Bad certificate: %s", error)
 
1699
                    return
 
1700
                logger.debug("Fingerprint: %s", fpr)
 
1701
                
 
1702
                try:
 
1703
                    client = ProxyClient(child_pipe, fpr,
2373
1704
                                         self.client_address)
2374
1705
                except KeyError:
2375
1706
                    return
2376
 
 
 
1707
                
2377
1708
                if client.approval_delay:
2378
1709
                    delay = client.approval_delay
2379
1710
                    client.approvals_pending += 1
2380
1711
                    approval_required = True
2381
 
 
 
1712
                
2382
1713
                while True:
2383
1714
                    if not client.enabled:
2384
1715
                        logger.info("Client %s is disabled",
2385
 
                                    client.name)
 
1716
                                       client.name)
2386
1717
                        if self.server.use_dbus:
2387
1718
                            # Emit D-Bus signal
2388
1719
                            client.Rejected("Disabled")
2389
1720
                        return
2390
 
 
 
1721
                    
2391
1722
                    if client.approved or not client.approval_delay:
2392
 
                        # We are approved or approval is disabled
 
1723
                        #We are approved or approval is disabled
2393
1724
                        break
2394
1725
                    elif client.approved is None:
2395
1726
                        logger.info("Client %s needs approval",
2397
1728
                        if self.server.use_dbus:
2398
1729
                            # Emit D-Bus signal
2399
1730
                            client.NeedApproval(
2400
 
                                client.approval_delay.total_seconds()
2401
 
                                * 1000, client.approved_by_default)
 
1731
                                client.approval_delay_milliseconds(),
 
1732
                                client.approved_by_default)
2402
1733
                    else:
2403
1734
                        logger.warning("Client %s was not approved",
2404
1735
                                       client.name)
2406
1737
                            # Emit D-Bus signal
2407
1738
                            client.Rejected("Denied")
2408
1739
                        return
2409
 
 
2410
 
                    # wait until timeout or approved
 
1740
                    
 
1741
                    #wait until timeout or approved
2411
1742
                    time = datetime.datetime.now()
2412
1743
                    client.changedstate.acquire()
2413
 
                    client.changedstate.wait(delay.total_seconds())
 
1744
                    client.changedstate.wait(
 
1745
                        float(timedelta_to_milliseconds(delay)
 
1746
                              / 1000))
2414
1747
                    client.changedstate.release()
2415
1748
                    time2 = datetime.datetime.now()
2416
1749
                    if (time2 - time) >= delay:
2426
1759
                            break
2427
1760
                    else:
2428
1761
                        delay -= time2 - time
2429
 
 
2430
 
                try:
2431
 
                    session.send(client.secret)
2432
 
                except gnutls.Error as error:
2433
 
                    logger.warning("gnutls send failed",
2434
 
                                   exc_info=error)
2435
 
                    return
2436
 
 
 
1762
                
 
1763
                sent_size = 0
 
1764
                while sent_size < len(client.secret):
 
1765
                    try:
 
1766
                        sent = session.send(client.secret[sent_size:])
 
1767
                    except gnutls.errors.GNUTLSError as error:
 
1768
                        logger.warning("gnutls send failed",
 
1769
                                       exc_info=error)
 
1770
                        return
 
1771
                    logger.debug("Sent: %d, remaining: %d",
 
1772
                                 sent, len(client.secret)
 
1773
                                 - (sent_size + sent))
 
1774
                    sent_size += sent
 
1775
                
2437
1776
                logger.info("Sending secret to %s", client.name)
2438
1777
                # bump the timeout using extended_timeout
2439
1778
                client.bump_timeout(client.extended_timeout)
2440
1779
                if self.server.use_dbus:
2441
1780
                    # Emit D-Bus signal
2442
1781
                    client.GotSecret()
2443
 
 
 
1782
            
2444
1783
            finally:
2445
1784
                if approval_required:
2446
1785
                    client.approvals_pending -= 1
2447
1786
                try:
2448
1787
                    session.bye()
2449
 
                except gnutls.Error as error:
 
1788
                except gnutls.errors.GNUTLSError as error:
2450
1789
                    logger.warning("GnuTLS bye failed",
2451
1790
                                   exc_info=error)
2452
 
 
 
1791
    
2453
1792
    @staticmethod
2454
1793
    def peer_certificate(session):
2455
 
        "Return the peer's certificate as a bytestring"
2456
 
        try:
2457
 
            cert_type = gnutls.certificate_type_get2(
2458
 
                session, gnutls.CTYPE_PEERS)
2459
 
        except AttributeError:
2460
 
            cert_type = gnutls.certificate_type_get(session)
2461
 
        if gnutls.has_rawpk:
2462
 
            valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2463
 
        else:
2464
 
            valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2465
 
        # If not a valid certificate type...
2466
 
        if cert_type not in valid_cert_types:
2467
 
            logger.info("Cert type %r not in %r", cert_type,
2468
 
                        valid_cert_types)
2469
 
            # ...return invalid data
2470
 
            return b""
 
1794
        "Return the peer's OpenPGP certificate as a bytestring"
 
1795
        # If not an OpenPGP certificate...
 
1796
        if (gnutls.library.functions
 
1797
            .gnutls_certificate_type_get(session._c_object)
 
1798
            != gnutls.library.constants.GNUTLS_CRT_OPENPGP):
 
1799
            # ...do the normal thing
 
1800
            return session.peer_certificate
2471
1801
        list_size = ctypes.c_uint(1)
2472
 
        cert_list = (gnutls.certificate_get_peers
2473
 
                     (session, ctypes.byref(list_size)))
 
1802
        cert_list = (gnutls.library.functions
 
1803
                     .gnutls_certificate_get_peers
 
1804
                     (session._c_object, ctypes.byref(list_size)))
2474
1805
        if not bool(cert_list) and list_size.value != 0:
2475
 
            raise gnutls.Error("error getting peer certificate")
 
1806
            raise gnutls.errors.GNUTLSError("error getting peer"
 
1807
                                            " certificate")
2476
1808
        if list_size.value == 0:
2477
1809
            return None
2478
1810
        cert = cert_list[0]
2479
1811
        return ctypes.string_at(cert.data, cert.size)
2480
 
 
2481
 
    @staticmethod
2482
 
    def key_id(certificate):
2483
 
        "Convert a certificate bytestring to a hexdigit key ID"
2484
 
        # New GnuTLS "datum" with the public key
2485
 
        datum = gnutls.datum_t(
2486
 
            ctypes.cast(ctypes.c_char_p(certificate),
2487
 
                        ctypes.POINTER(ctypes.c_ubyte)),
2488
 
            ctypes.c_uint(len(certificate)))
2489
 
        # XXX all these need to be created in the gnutls "module"
2490
 
        # New empty GnuTLS certificate
2491
 
        pubkey = gnutls.pubkey_t()
2492
 
        gnutls.pubkey_init(ctypes.byref(pubkey))
2493
 
        # Import the raw public key into the certificate
2494
 
        gnutls.pubkey_import(pubkey,
2495
 
                             ctypes.byref(datum),
2496
 
                             gnutls.X509_FMT_DER)
2497
 
        # New buffer for the key ID
2498
 
        buf = ctypes.create_string_buffer(32)
2499
 
        buf_len = ctypes.c_size_t(len(buf))
2500
 
        # Get the key ID from the raw public key into the buffer
2501
 
        gnutls.pubkey_get_key_id(
2502
 
            pubkey,
2503
 
            gnutls.KEYID_USE_SHA256,
2504
 
            ctypes.cast(ctypes.byref(buf),
2505
 
                        ctypes.POINTER(ctypes.c_ubyte)),
2506
 
            ctypes.byref(buf_len))
2507
 
        # Deinit the certificate
2508
 
        gnutls.pubkey_deinit(pubkey)
2509
 
 
2510
 
        # Convert the buffer to a Python bytestring
2511
 
        key_id = ctypes.string_at(buf, buf_len.value)
2512
 
        # Convert the bytestring to hexadecimal notation
2513
 
        hex_key_id = binascii.hexlify(key_id).upper()
2514
 
        return hex_key_id
2515
 
 
 
1812
    
2516
1813
    @staticmethod
2517
1814
    def fingerprint(openpgp):
2518
1815
        "Convert an OpenPGP bytestring to a hexdigit fingerprint"
2519
1816
        # New GnuTLS "datum" with the OpenPGP public key
2520
 
        datum = gnutls.datum_t(
2521
 
            ctypes.cast(ctypes.c_char_p(openpgp),
2522
 
                        ctypes.POINTER(ctypes.c_ubyte)),
2523
 
            ctypes.c_uint(len(openpgp)))
 
1817
        datum = (gnutls.library.types
 
1818
                 .gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
 
1819
                                             ctypes.POINTER
 
1820
                                             (ctypes.c_ubyte)),
 
1821
                                 ctypes.c_uint(len(openpgp))))
2524
1822
        # New empty GnuTLS certificate
2525
 
        crt = gnutls.openpgp_crt_t()
2526
 
        gnutls.openpgp_crt_init(ctypes.byref(crt))
 
1823
        crt = gnutls.library.types.gnutls_openpgp_crt_t()
 
1824
        (gnutls.library.functions
 
1825
         .gnutls_openpgp_crt_init(ctypes.byref(crt)))
2527
1826
        # Import the OpenPGP public key into the certificate
2528
 
        gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2529
 
                                  gnutls.OPENPGP_FMT_RAW)
 
1827
        (gnutls.library.functions
 
1828
         .gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
 
1829
                                    gnutls.library.constants
 
1830
                                    .GNUTLS_OPENPGP_FMT_RAW))
2530
1831
        # Verify the self signature in the key
2531
1832
        crtverify = ctypes.c_uint()
2532
 
        gnutls.openpgp_crt_verify_self(crt, 0,
2533
 
                                       ctypes.byref(crtverify))
 
1833
        (gnutls.library.functions
 
1834
         .gnutls_openpgp_crt_verify_self(crt, 0,
 
1835
                                         ctypes.byref(crtverify)))
2534
1836
        if crtverify.value != 0:
2535
 
            gnutls.openpgp_crt_deinit(crt)
2536
 
            raise gnutls.CertificateSecurityError(code
2537
 
                                                  =crtverify.value)
 
1837
            gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
 
1838
            raise (gnutls.errors.CertificateSecurityError
 
1839
                   ("Verify failed"))
2538
1840
        # New buffer for the fingerprint
2539
1841
        buf = ctypes.create_string_buffer(20)
2540
1842
        buf_len = ctypes.c_size_t()
2541
1843
        # Get the fingerprint from the certificate into the buffer
2542
 
        gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2543
 
                                           ctypes.byref(buf_len))
 
1844
        (gnutls.library.functions
 
1845
         .gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
 
1846
                                             ctypes.byref(buf_len)))
2544
1847
        # Deinit the certificate
2545
 
        gnutls.openpgp_crt_deinit(crt)
 
1848
        gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2546
1849
        # Convert the buffer to a Python bytestring
2547
1850
        fpr = ctypes.string_at(buf, buf_len.value)
2548
1851
        # Convert the bytestring to hexadecimal notation
2550
1853
        return hex_fpr
2551
1854
 
2552
1855
 
2553
 
class MultiprocessingMixIn:
 
1856
class MultiprocessingMixIn(object):
2554
1857
    """Like socketserver.ThreadingMixIn, but with multiprocessing"""
2555
 
 
2556
1858
    def sub_process_main(self, request, address):
2557
1859
        try:
2558
1860
            self.finish_request(request, address)
2559
1861
        except Exception:
2560
1862
            self.handle_error(request, address)
2561
1863
        self.close_request(request)
2562
 
 
 
1864
    
2563
1865
    def process_request(self, request, address):
2564
1866
        """Start a new process to process the request."""
2565
 
        proc = multiprocessing.Process(target=self.sub_process_main,
2566
 
                                       args=(request, address))
 
1867
        proc = multiprocessing.Process(target = self.sub_process_main,
 
1868
                                       args = (request, address))
2567
1869
        proc.start()
2568
1870
        return proc
2569
1871
 
2570
1872
 
2571
 
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
 
1873
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2572
1874
    """ adds a pipe to the MixIn """
2573
 
 
2574
1875
    def process_request(self, request, client_address):
2575
1876
        """Overrides and wraps the original process_request().
2576
 
 
 
1877
        
2577
1878
        This function creates a new pipe in self.pipe
2578
1879
        """
2579
1880
        parent_pipe, self.child_pipe = multiprocessing.Pipe()
2580
 
 
 
1881
        
2581
1882
        proc = MultiprocessingMixIn.process_request(self, request,
2582
1883
                                                    client_address)
2583
1884
        self.child_pipe.close()
2584
1885
        self.add_pipe(parent_pipe, proc)
2585
 
 
 
1886
    
2586
1887
    def add_pipe(self, parent_pipe, proc):
2587
1888
        """Dummy function; override as necessary"""
2588
 
        raise NotImplementedError()
 
1889
        raise NotImplementedError
2589
1890
 
2590
1891
 
2591
1892
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2592
 
                     socketserver.TCPServer):
2593
 
    """IPv6-capable TCP server.  Accepts None as address and/or port
2594
 
 
 
1893
                     socketserver.TCPServer, object):
 
1894
    """IPv6-capable TCP server.  Accepts 'None' as address and/or port
 
1895
    
2595
1896
    Attributes:
2596
1897
        enabled:        Boolean; whether this server is activated yet
2597
1898
        interface:      None or a network interface name (string)
2598
1899
        use_ipv6:       Boolean; to use IPv6 or not
2599
1900
    """
2600
 
 
2601
1901
    def __init__(self, server_address, RequestHandlerClass,
2602
 
                 interface=None,
2603
 
                 use_ipv6=True,
2604
 
                 socketfd=None):
 
1902
                 interface=None, use_ipv6=True, socketfd=None):
2605
1903
        """If socketfd is set, use that file descriptor instead of
2606
1904
        creating a new one with socket.socket().
2607
1905
        """
2613
1911
            self.socketfd = socketfd
2614
1912
            # Save the original socket.socket() function
2615
1913
            self.socket_socket = socket.socket
2616
 
 
2617
1914
            # To implement --socket, we monkey patch socket.socket.
2618
 
            #
 
1915
            # 
2619
1916
            # (When socketserver.TCPServer is a new-style class, we
2620
1917
            # could make self.socket into a property instead of monkey
2621
1918
            # patching socket.socket.)
2622
 
            #
 
1919
            # 
2623
1920
            # Create a one-time-only replacement for socket.socket()
2624
1921
            @functools.wraps(socket.socket)
2625
1922
            def socket_wrapper(*args, **kwargs):
2637
1934
        # socket_wrapper(), if socketfd was set.
2638
1935
        socketserver.TCPServer.__init__(self, server_address,
2639
1936
                                        RequestHandlerClass)
2640
 
 
 
1937
    
2641
1938
    def server_bind(self):
2642
1939
        """This overrides the normal server_bind() function
2643
1940
        to bind to an interface if one was specified, and also NOT to
2644
1941
        bind to an address or port if they were not specified."""
2645
 
        global SO_BINDTODEVICE
2646
1942
        if self.interface is not None:
2647
1943
            if SO_BINDTODEVICE is None:
2648
 
                # Fall back to a hard-coded value which seems to be
2649
 
                # common enough.
2650
 
                logger.warning("SO_BINDTODEVICE not found, trying 25")
2651
 
                SO_BINDTODEVICE = 25
2652
 
            try:
2653
 
                self.socket.setsockopt(
2654
 
                    socket.SOL_SOCKET, SO_BINDTODEVICE,
2655
 
                    (self.interface + "\0").encode("utf-8"))
2656
 
            except socket.error as error:
2657
 
                if error.errno == errno.EPERM:
2658
 
                    logger.error("No permission to bind to"
2659
 
                                 " interface %s", self.interface)
2660
 
                elif error.errno == errno.ENOPROTOOPT:
2661
 
                    logger.error("SO_BINDTODEVICE not available;"
2662
 
                                 " cannot bind to interface %s",
2663
 
                                 self.interface)
2664
 
                elif error.errno == errno.ENODEV:
2665
 
                    logger.error("Interface %s does not exist,"
2666
 
                                 " cannot bind", self.interface)
2667
 
                else:
2668
 
                    raise
 
1944
                logger.error("SO_BINDTODEVICE does not exist;"
 
1945
                             " cannot bind to interface %s",
 
1946
                             self.interface)
 
1947
            else:
 
1948
                try:
 
1949
                    self.socket.setsockopt(socket.SOL_SOCKET,
 
1950
                                           SO_BINDTODEVICE,
 
1951
                                           str(self.interface
 
1952
                                               + '\0'))
 
1953
                except socket.error as error:
 
1954
                    if error.errno == errno.EPERM:
 
1955
                        logger.error("No permission to"
 
1956
                                     " bind to interface %s",
 
1957
                                     self.interface)
 
1958
                    elif error.errno == errno.ENOPROTOOPT:
 
1959
                        logger.error("SO_BINDTODEVICE not available;"
 
1960
                                     " cannot bind to interface %s",
 
1961
                                     self.interface)
 
1962
                    elif error.errno == errno.ENODEV:
 
1963
                        logger.error("Interface %s does not"
 
1964
                                     " exist, cannot bind",
 
1965
                                     self.interface)
 
1966
                    else:
 
1967
                        raise
2669
1968
        # Only bind(2) the socket if we really need to.
2670
1969
        if self.server_address[0] or self.server_address[1]:
2671
 
            if self.server_address[1]:
2672
 
                self.allow_reuse_address = True
2673
1970
            if not self.server_address[0]:
2674
1971
                if self.address_family == socket.AF_INET6:
2675
 
                    any_address = "::"  # in6addr_any
 
1972
                    any_address = "::" # in6addr_any
2676
1973
                else:
2677
 
                    any_address = "0.0.0.0"  # INADDR_ANY
 
1974
                    any_address = socket.INADDR_ANY
2678
1975
                self.server_address = (any_address,
2679
1976
                                       self.server_address[1])
2680
1977
            elif not self.server_address[1]:
2681
 
                self.server_address = (self.server_address[0], 0)
 
1978
                self.server_address = (self.server_address[0],
 
1979
                                       0)
2682
1980
#                 if self.interface:
2683
1981
#                     self.server_address = (self.server_address[0],
2684
1982
#                                            0, # port
2690
1988
 
2691
1989
class MandosServer(IPv6_TCPServer):
2692
1990
    """Mandos server.
2693
 
 
 
1991
    
2694
1992
    Attributes:
2695
1993
        clients:        set of Client objects
2696
1994
        gnutls_priority GnuTLS priority string
2697
1995
        use_dbus:       Boolean; to emit D-Bus signals or not
2698
 
 
2699
 
    Assumes a GLib.MainLoop event loop.
 
1996
    
 
1997
    Assumes a gobject.MainLoop event loop.
2700
1998
    """
2701
 
 
2702
1999
    def __init__(self, server_address, RequestHandlerClass,
2703
 
                 interface=None,
2704
 
                 use_ipv6=True,
2705
 
                 clients=None,
2706
 
                 gnutls_priority=None,
2707
 
                 use_dbus=True,
2708
 
                 socketfd=None):
 
2000
                 interface=None, use_ipv6=True, clients=None,
 
2001
                 gnutls_priority=None, use_dbus=True, socketfd=None):
2709
2002
        self.enabled = False
2710
2003
        self.clients = clients
2711
2004
        if self.clients is None:
2714
2007
        self.gnutls_priority = gnutls_priority
2715
2008
        IPv6_TCPServer.__init__(self, server_address,
2716
2009
                                RequestHandlerClass,
2717
 
                                interface=interface,
2718
 
                                use_ipv6=use_ipv6,
2719
 
                                socketfd=socketfd)
2720
 
 
 
2010
                                interface = interface,
 
2011
                                use_ipv6 = use_ipv6,
 
2012
                                socketfd = socketfd)
2721
2013
    def server_activate(self):
2722
2014
        if self.enabled:
2723
2015
            return socketserver.TCPServer.server_activate(self)
2724
 
 
 
2016
    
2725
2017
    def enable(self):
2726
2018
        self.enabled = True
2727
 
 
 
2019
    
2728
2020
    def add_pipe(self, parent_pipe, proc):
2729
2021
        # Call "handle_ipc" for both data and EOF events
2730
 
        GLib.io_add_watch(
2731
 
            GLib.IOChannel.unix_new(parent_pipe.fileno()),
2732
 
            GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2733
 
            functools.partial(self.handle_ipc,
2734
 
                              parent_pipe=parent_pipe,
2735
 
                              proc=proc))
2736
 
 
2737
 
    def handle_ipc(self, source, condition,
2738
 
                   parent_pipe=None,
2739
 
                   proc=None,
2740
 
                   client_object=None):
 
2022
        gobject.io_add_watch(parent_pipe.fileno(),
 
2023
                             gobject.IO_IN | gobject.IO_HUP,
 
2024
                             functools.partial(self.handle_ipc,
 
2025
                                               parent_pipe =
 
2026
                                               parent_pipe,
 
2027
                                               proc = proc))
 
2028
    
 
2029
    def handle_ipc(self, source, condition, parent_pipe=None,
 
2030
                   proc = None, client_object=None):
2741
2031
        # error, or the other end of multiprocessing.Pipe has closed
2742
 
        if condition & (GLib.IO_ERR | GLib.IO_HUP):
 
2032
        if condition & (gobject.IO_ERR | gobject.IO_HUP):
2743
2033
            # Wait for other process to exit
2744
2034
            proc.join()
2745
2035
            return False
2746
 
 
 
2036
        
2747
2037
        # Read a request from the child
2748
2038
        request = parent_pipe.recv()
2749
2039
        command = request[0]
2750
 
 
2751
 
        if command == "init":
2752
 
            key_id = request[1].decode("ascii")
2753
 
            fpr = request[2].decode("ascii")
2754
 
            address = request[3]
2755
 
 
2756
 
            for c in self.clients.values():
2757
 
                if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2758
 
                              "27AE41E4649B934CA495991B7852B855"):
2759
 
                    continue
2760
 
                if key_id and c.key_id == key_id:
2761
 
                    client = c
2762
 
                    break
2763
 
                if fpr and c.fingerprint == fpr:
 
2040
        
 
2041
        if command == 'init':
 
2042
            fpr = request[1]
 
2043
            address = request[2]
 
2044
            
 
2045
            for c in self.clients.itervalues():
 
2046
                if c.fingerprint == fpr:
2764
2047
                    client = c
2765
2048
                    break
2766
2049
            else:
2767
 
                logger.info("Client not found for key ID: %s, address"
2768
 
                            ": %s", key_id or fpr, address)
 
2050
                logger.info("Client not found for fingerprint: %s, ad"
 
2051
                            "dress: %s", fpr, address)
2769
2052
                if self.use_dbus:
2770
2053
                    # Emit D-Bus signal
2771
 
                    mandos_dbus_service.ClientNotFound(key_id or fpr,
 
2054
                    mandos_dbus_service.ClientNotFound(fpr,
2772
2055
                                                       address[0])
2773
2056
                parent_pipe.send(False)
2774
2057
                return False
2775
 
 
2776
 
            GLib.io_add_watch(
2777
 
                GLib.IOChannel.unix_new(parent_pipe.fileno()),
2778
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2779
 
                functools.partial(self.handle_ipc,
2780
 
                                  parent_pipe=parent_pipe,
2781
 
                                  proc=proc,
2782
 
                                  client_object=client))
 
2058
            
 
2059
            gobject.io_add_watch(parent_pipe.fileno(),
 
2060
                                 gobject.IO_IN | gobject.IO_HUP,
 
2061
                                 functools.partial(self.handle_ipc,
 
2062
                                                   parent_pipe =
 
2063
                                                   parent_pipe,
 
2064
                                                   proc = proc,
 
2065
                                                   client_object =
 
2066
                                                   client))
2783
2067
            parent_pipe.send(True)
2784
2068
            # remove the old hook in favor of the new above hook on
2785
2069
            # same fileno
2786
2070
            return False
2787
 
        if command == "funcall":
 
2071
        if command == 'funcall':
2788
2072
            funcname = request[1]
2789
2073
            args = request[2]
2790
2074
            kwargs = request[3]
2791
 
 
2792
 
            parent_pipe.send(("data", getattr(client_object,
 
2075
            
 
2076
            parent_pipe.send(('data', getattr(client_object,
2793
2077
                                              funcname)(*args,
2794
 
                                                        **kwargs)))
2795
 
 
2796
 
        if command == "getattr":
 
2078
                                                         **kwargs)))
 
2079
        
 
2080
        if command == 'getattr':
2797
2081
            attrname = request[1]
2798
 
            if isinstance(client_object.__getattribute__(attrname),
2799
 
                          collections.abc.Callable):
2800
 
                parent_pipe.send(("function", ))
 
2082
            if callable(client_object.__getattribute__(attrname)):
 
2083
                parent_pipe.send(('function',))
2801
2084
            else:
2802
 
                parent_pipe.send((
2803
 
                    "data", client_object.__getattribute__(attrname)))
2804
 
 
2805
 
        if command == "setattr":
 
2085
                parent_pipe.send(('data', client_object
 
2086
                                  .__getattribute__(attrname)))
 
2087
        
 
2088
        if command == 'setattr':
2806
2089
            attrname = request[1]
2807
2090
            value = request[2]
2808
2091
            setattr(client_object, attrname, value)
2809
 
 
 
2092
        
2810
2093
        return True
2811
2094
 
2812
2095
 
2813
 
def rfc3339_duration_to_delta(duration):
2814
 
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
2815
 
 
2816
 
    >>> timedelta = datetime.timedelta
2817
 
    >>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2818
 
    True
2819
 
    >>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2820
 
    True
2821
 
    >>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2822
 
    True
2823
 
    >>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2824
 
    True
2825
 
    >>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2826
 
    True
2827
 
    >>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2828
 
    True
2829
 
    >>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2830
 
    True
2831
 
    >>> del timedelta
2832
 
    """
2833
 
 
2834
 
    # Parsing an RFC 3339 duration with regular expressions is not
2835
 
    # possible - there would have to be multiple places for the same
2836
 
    # values, like seconds.  The current code, while more esoteric, is
2837
 
    # cleaner without depending on a parsing library.  If Python had a
2838
 
    # built-in library for parsing we would use it, but we'd like to
2839
 
    # avoid excessive use of external libraries.
2840
 
 
2841
 
    # New type for defining tokens, syntax, and semantics all-in-one
2842
 
    Token = collections.namedtuple("Token", (
2843
 
        "regexp",  # To match token; if "value" is not None, must have
2844
 
                   # a "group" containing digits
2845
 
        "value",   # datetime.timedelta or None
2846
 
        "followers"))           # Tokens valid after this token
2847
 
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
2848
 
    # the "duration" ABNF definition in RFC 3339, Appendix A.
2849
 
    token_end = Token(re.compile(r"$"), None, frozenset())
2850
 
    token_second = Token(re.compile(r"(\d+)S"),
2851
 
                         datetime.timedelta(seconds=1),
2852
 
                         frozenset((token_end, )))
2853
 
    token_minute = Token(re.compile(r"(\d+)M"),
2854
 
                         datetime.timedelta(minutes=1),
2855
 
                         frozenset((token_second, token_end)))
2856
 
    token_hour = Token(re.compile(r"(\d+)H"),
2857
 
                       datetime.timedelta(hours=1),
2858
 
                       frozenset((token_minute, token_end)))
2859
 
    token_time = Token(re.compile(r"T"),
2860
 
                       None,
2861
 
                       frozenset((token_hour, token_minute,
2862
 
                                  token_second)))
2863
 
    token_day = Token(re.compile(r"(\d+)D"),
2864
 
                      datetime.timedelta(days=1),
2865
 
                      frozenset((token_time, token_end)))
2866
 
    token_month = Token(re.compile(r"(\d+)M"),
2867
 
                        datetime.timedelta(weeks=4),
2868
 
                        frozenset((token_day, token_end)))
2869
 
    token_year = Token(re.compile(r"(\d+)Y"),
2870
 
                       datetime.timedelta(weeks=52),
2871
 
                       frozenset((token_month, token_end)))
2872
 
    token_week = Token(re.compile(r"(\d+)W"),
2873
 
                       datetime.timedelta(weeks=1),
2874
 
                       frozenset((token_end, )))
2875
 
    token_duration = Token(re.compile(r"P"), None,
2876
 
                           frozenset((token_year, token_month,
2877
 
                                      token_day, token_time,
2878
 
                                      token_week)))
2879
 
    # Define starting values:
2880
 
    # Value so far
2881
 
    value = datetime.timedelta()
2882
 
    found_token = None
2883
 
    # Following valid tokens
2884
 
    followers = frozenset((token_duration, ))
2885
 
    # String left to parse
2886
 
    s = duration
2887
 
    # Loop until end token is found
2888
 
    while found_token is not token_end:
2889
 
        # Search for any currently valid tokens
2890
 
        for token in followers:
2891
 
            match = token.regexp.match(s)
2892
 
            if match is not None:
2893
 
                # Token found
2894
 
                if token.value is not None:
2895
 
                    # Value found, parse digits
2896
 
                    factor = int(match.group(1), 10)
2897
 
                    # Add to value so far
2898
 
                    value += factor * token.value
2899
 
                # Strip token from string
2900
 
                s = token.regexp.sub("", s, 1)
2901
 
                # Go to found token
2902
 
                found_token = token
2903
 
                # Set valid next tokens
2904
 
                followers = found_token.followers
2905
 
                break
2906
 
        else:
2907
 
            # No currently valid tokens were found
2908
 
            raise ValueError("Invalid RFC 3339 duration: {!r}"
2909
 
                             .format(duration))
2910
 
    # End token found
2911
 
    return value
2912
 
 
2913
 
 
2914
2096
def string_to_delta(interval):
2915
2097
    """Parse a string and return a datetime.timedelta
2916
 
 
2917
 
    >>> string_to_delta("7d") == datetime.timedelta(7)
2918
 
    True
2919
 
    >>> string_to_delta("60s") == datetime.timedelta(0, 60)
2920
 
    True
2921
 
    >>> string_to_delta("60m") == datetime.timedelta(0, 3600)
2922
 
    True
2923
 
    >>> string_to_delta("24h") == datetime.timedelta(1)
2924
 
    True
2925
 
    >>> string_to_delta("1w") == datetime.timedelta(7)
2926
 
    True
2927
 
    >>> string_to_delta("5m 30s") == datetime.timedelta(0, 330)
2928
 
    True
 
2098
    
 
2099
    >>> string_to_delta('7d')
 
2100
    datetime.timedelta(7)
 
2101
    >>> string_to_delta('60s')
 
2102
    datetime.timedelta(0, 60)
 
2103
    >>> string_to_delta('60m')
 
2104
    datetime.timedelta(0, 3600)
 
2105
    >>> string_to_delta('24h')
 
2106
    datetime.timedelta(1)
 
2107
    >>> string_to_delta('1w')
 
2108
    datetime.timedelta(7)
 
2109
    >>> string_to_delta('5m 30s')
 
2110
    datetime.timedelta(0, 330)
2929
2111
    """
2930
 
 
2931
 
    try:
2932
 
        return rfc3339_duration_to_delta(interval)
2933
 
    except ValueError:
2934
 
        pass
2935
 
 
2936
2112
    timevalue = datetime.timedelta(0)
2937
2113
    for s in interval.split():
2938
2114
        try:
2939
 
            suffix = s[-1]
 
2115
            suffix = unicode(s[-1])
2940
2116
            value = int(s[:-1])
2941
2117
            if suffix == "d":
2942
2118
                delta = datetime.timedelta(value)
2949
2125
            elif suffix == "w":
2950
2126
                delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2951
2127
            else:
2952
 
                raise ValueError("Unknown suffix {!r}".format(suffix))
2953
 
        except IndexError as e:
 
2128
                raise ValueError("Unknown suffix {0!r}"
 
2129
                                 .format(suffix))
 
2130
        except (ValueError, IndexError) as e:
2954
2131
            raise ValueError(*(e.args))
2955
2132
        timevalue += delta
2956
2133
    return timevalue
2957
2134
 
2958
2135
 
2959
 
def daemon(nochdir=False, noclose=False):
 
2136
def daemon(nochdir = False, noclose = False):
2960
2137
    """See daemon(3).  Standard BSD Unix function.
2961
 
 
 
2138
    
2962
2139
    This should really exist as os.daemon, but it doesn't (yet)."""
2963
2140
    if os.fork():
2964
2141
        sys.exit()
2972
2149
        null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2973
2150
        if not stat.S_ISCHR(os.fstat(null).st_mode):
2974
2151
            raise OSError(errno.ENODEV,
2975
 
                          "{} not a character device"
 
2152
                          "{0} not a character device"
2976
2153
                          .format(os.devnull))
2977
2154
        os.dup2(null, sys.stdin.fileno())
2978
2155
        os.dup2(null, sys.stdout.fileno())
2982
2159
 
2983
2160
 
2984
2161
def main():
2985
 
 
 
2162
    
2986
2163
    ##################################################################
2987
2164
    # Parsing of options, both command line and config file
2988
 
 
 
2165
    
2989
2166
    parser = argparse.ArgumentParser()
2990
2167
    parser.add_argument("-v", "--version", action="version",
2991
 
                        version="%(prog)s {}".format(version),
 
2168
                        version = "%(prog)s {0}".format(version),
2992
2169
                        help="show version number and exit")
2993
2170
    parser.add_argument("-i", "--interface", metavar="IF",
2994
2171
                        help="Bind to interface IF")
3000
2177
                        help="Run self-test")
3001
2178
    parser.add_argument("--debug", action="store_true",
3002
2179
                        help="Debug mode; run in foreground and log"
3003
 
                        " to terminal", default=None)
 
2180
                        " to terminal")
3004
2181
    parser.add_argument("--debuglevel", metavar="LEVEL",
3005
2182
                        help="Debug level for stdout output")
3006
2183
    parser.add_argument("--priority", help="GnuTLS"
3013
2190
                        " files")
3014
2191
    parser.add_argument("--no-dbus", action="store_false",
3015
2192
                        dest="use_dbus", help="Do not provide D-Bus"
3016
 
                        " system bus interface", default=None)
 
2193
                        " system bus interface")
3017
2194
    parser.add_argument("--no-ipv6", action="store_false",
3018
 
                        dest="use_ipv6", help="Do not use IPv6",
3019
 
                        default=None)
 
2195
                        dest="use_ipv6", help="Do not use IPv6")
3020
2196
    parser.add_argument("--no-restore", action="store_false",
3021
2197
                        dest="restore", help="Do not restore stored"
3022
 
                        " state", default=None)
 
2198
                        " state")
3023
2199
    parser.add_argument("--socket", type=int,
3024
2200
                        help="Specify a file descriptor to a network"
3025
2201
                        " socket to use instead of creating one")
3026
2202
    parser.add_argument("--statedir", metavar="DIR",
3027
2203
                        help="Directory to save/restore state in")
3028
 
    parser.add_argument("--foreground", action="store_true",
3029
 
                        help="Run in foreground", default=None)
3030
 
    parser.add_argument("--no-zeroconf", action="store_false",
3031
 
                        dest="zeroconf", help="Do not use Zeroconf",
3032
 
                        default=None)
3033
 
 
 
2204
    
3034
2205
    options = parser.parse_args()
3035
 
 
 
2206
    
 
2207
    if options.check:
 
2208
        import doctest
 
2209
        doctest.testmod()
 
2210
        sys.exit()
 
2211
    
3036
2212
    # Default values for config file for server-global settings
3037
 
    if gnutls.has_rawpk:
3038
 
        priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3039
 
                    ":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3040
 
    else:
3041
 
        priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3042
 
                    ":+SIGN-DSA-SHA256")
3043
 
    server_defaults = {"interface": "",
3044
 
                       "address": "",
3045
 
                       "port": "",
3046
 
                       "debug": "False",
3047
 
                       "priority": priority,
3048
 
                       "servicename": "Mandos",
3049
 
                       "use_dbus": "True",
3050
 
                       "use_ipv6": "True",
3051
 
                       "debuglevel": "",
3052
 
                       "restore": "True",
3053
 
                       "socket": "",
3054
 
                       "statedir": "/var/lib/mandos",
3055
 
                       "foreground": "False",
3056
 
                       "zeroconf": "True",
3057
 
                       }
3058
 
    del priority
3059
 
 
 
2213
    server_defaults = { "interface": "",
 
2214
                        "address": "",
 
2215
                        "port": "",
 
2216
                        "debug": "False",
 
2217
                        "priority":
 
2218
                        "SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
 
2219
                        "servicename": "Mandos",
 
2220
                        "use_dbus": "True",
 
2221
                        "use_ipv6": "True",
 
2222
                        "debuglevel": "",
 
2223
                        "restore": "True",
 
2224
                        "socket": "",
 
2225
                        "statedir": "/var/lib/mandos"
 
2226
                        }
 
2227
    
3060
2228
    # Parse config file for server-global settings
3061
 
    server_config = configparser.ConfigParser(server_defaults)
 
2229
    server_config = configparser.SafeConfigParser(server_defaults)
3062
2230
    del server_defaults
3063
 
    server_config.read(os.path.join(options.configdir, "mandos.conf"))
3064
 
    # Convert the ConfigParser object to a dict
 
2231
    server_config.read(os.path.join(options.configdir,
 
2232
                                    "mandos.conf"))
 
2233
    # Convert the SafeConfigParser object to a dict
3065
2234
    server_settings = server_config.defaults()
3066
2235
    # Use the appropriate methods on the non-string config options
3067
 
    for option in ("debug", "use_dbus", "use_ipv6", "restore",
3068
 
                   "foreground", "zeroconf"):
 
2236
    for option in ("debug", "use_dbus", "use_ipv6"):
3069
2237
        server_settings[option] = server_config.getboolean("DEFAULT",
3070
2238
                                                           option)
3071
2239
    if server_settings["port"]:
3081
2249
            server_settings["socket"] = os.dup(server_settings
3082
2250
                                               ["socket"])
3083
2251
    del server_config
3084
 
 
 
2252
    
3085
2253
    # Override the settings from the config file with command line
3086
2254
    # options, if set.
3087
2255
    for option in ("interface", "address", "port", "debug",
3088
 
                   "priority", "servicename", "configdir", "use_dbus",
3089
 
                   "use_ipv6", "debuglevel", "restore", "statedir",
3090
 
                   "socket", "foreground", "zeroconf"):
 
2256
                   "priority", "servicename", "configdir",
 
2257
                   "use_dbus", "use_ipv6", "debuglevel", "restore",
 
2258
                   "statedir", "socket"):
3091
2259
        value = getattr(options, option)
3092
2260
        if value is not None:
3093
2261
            server_settings[option] = value
3094
2262
    del options
3095
2263
    # Force all strings to be unicode
3096
2264
    for option in server_settings.keys():
3097
 
        if isinstance(server_settings[option], bytes):
3098
 
            server_settings[option] = (server_settings[option]
3099
 
                                       .decode("utf-8"))
3100
 
    # Force all boolean options to be boolean
3101
 
    for option in ("debug", "use_dbus", "use_ipv6", "restore",
3102
 
                   "foreground", "zeroconf"):
3103
 
        server_settings[option] = bool(server_settings[option])
3104
 
    # Debug implies foreground
3105
 
    if server_settings["debug"]:
3106
 
        server_settings["foreground"] = True
 
2265
        if type(server_settings[option]) is str:
 
2266
            server_settings[option] = unicode(server_settings[option])
3107
2267
    # Now we have our good server settings in "server_settings"
3108
 
 
 
2268
    
3109
2269
    ##################################################################
3110
 
 
3111
 
    if (not server_settings["zeroconf"]
3112
 
        and not (server_settings["port"]
3113
 
                 or server_settings["socket"] != "")):
3114
 
        parser.error("Needs port or socket to work without Zeroconf")
3115
 
 
 
2270
    
3116
2271
    # For convenience
3117
2272
    debug = server_settings["debug"]
3118
2273
    debuglevel = server_settings["debuglevel"]
3120
2275
    use_ipv6 = server_settings["use_ipv6"]
3121
2276
    stored_state_path = os.path.join(server_settings["statedir"],
3122
2277
                                     stored_state_file)
3123
 
    foreground = server_settings["foreground"]
3124
 
    zeroconf = server_settings["zeroconf"]
3125
 
 
 
2278
    
3126
2279
    if debug:
3127
2280
        initlogger(debug, logging.DEBUG)
3128
2281
    else:
3131
2284
        else:
3132
2285
            level = getattr(logging, debuglevel.upper())
3133
2286
            initlogger(debug, level)
3134
 
 
 
2287
    
3135
2288
    if server_settings["servicename"] != "Mandos":
3136
 
        syslogger.setFormatter(
3137
 
            logging.Formatter("Mandos ({}) [%(process)d]:"
3138
 
                              " %(levelname)s: %(message)s".format(
3139
 
                                  server_settings["servicename"])))
3140
 
 
 
2289
        syslogger.setFormatter(logging.Formatter
 
2290
                               ('Mandos ({0}) [%(process)d]:'
 
2291
                                ' %(levelname)s: %(message)s'
 
2292
                                .format(server_settings
 
2293
                                        ["servicename"])))
 
2294
    
3141
2295
    # Parse config file with clients
3142
 
    client_config = configparser.ConfigParser(Client.client_defaults)
 
2296
    client_config = configparser.SafeConfigParser(Client
 
2297
                                                  .client_defaults)
3143
2298
    client_config.read(os.path.join(server_settings["configdir"],
3144
2299
                                    "clients.conf"))
3145
 
 
 
2300
    
3146
2301
    global mandos_dbus_service
3147
2302
    mandos_dbus_service = None
3148
 
 
3149
 
    socketfd = None
3150
 
    if server_settings["socket"] != "":
3151
 
        socketfd = server_settings["socket"]
3152
 
    tcp_server = MandosServer(
3153
 
        (server_settings["address"], server_settings["port"]),
3154
 
        ClientHandler,
3155
 
        interface=(server_settings["interface"] or None),
3156
 
        use_ipv6=use_ipv6,
3157
 
        gnutls_priority=server_settings["priority"],
3158
 
        use_dbus=use_dbus,
3159
 
        socketfd=socketfd)
3160
 
    if not foreground:
3161
 
        pidfilename = "/run/mandos.pid"
3162
 
        if not os.path.isdir("/run/."):
3163
 
            pidfilename = "/var/run/mandos.pid"
3164
 
        pidfile = None
 
2303
    
 
2304
    tcp_server = MandosServer((server_settings["address"],
 
2305
                               server_settings["port"]),
 
2306
                              ClientHandler,
 
2307
                              interface=(server_settings["interface"]
 
2308
                                         or None),
 
2309
                              use_ipv6=use_ipv6,
 
2310
                              gnutls_priority=
 
2311
                              server_settings["priority"],
 
2312
                              use_dbus=use_dbus,
 
2313
                              socketfd=(server_settings["socket"]
 
2314
                                        or None))
 
2315
    if not debug:
 
2316
        pidfilename = "/var/run/mandos.pid"
3165
2317
        try:
3166
 
            pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
 
2318
            pidfile = open(pidfilename, "w")
3167
2319
        except IOError as e:
3168
2320
            logger.error("Could not open file %r", pidfilename,
3169
2321
                         exc_info=e)
3170
 
 
3171
 
    for name, group in (("_mandos", "_mandos"),
3172
 
                        ("mandos", "mandos"),
3173
 
                        ("nobody", "nogroup")):
 
2322
    
 
2323
    for name in ("_mandos", "mandos", "nobody"):
3174
2324
        try:
3175
2325
            uid = pwd.getpwnam(name).pw_uid
3176
 
            gid = pwd.getpwnam(group).pw_gid
 
2326
            gid = pwd.getpwnam(name).pw_gid
3177
2327
            break
3178
2328
        except KeyError:
3179
2329
            continue
3183
2333
    try:
3184
2334
        os.setgid(gid)
3185
2335
        os.setuid(uid)
3186
 
        if debug:
3187
 
            logger.debug("Did setuid/setgid to {}:{}".format(uid,
3188
 
                                                             gid))
3189
2336
    except OSError as error:
3190
 
        logger.warning("Failed to setuid/setgid to {}:{}: {}"
3191
 
                       .format(uid, gid, os.strerror(error.errno)))
3192
2337
        if error.errno != errno.EPERM:
3193
 
            raise
3194
 
 
 
2338
            raise error
 
2339
    
3195
2340
    if debug:
3196
2341
        # Enable all possible GnuTLS debugging
3197
 
 
 
2342
        
3198
2343
        # "Use a log level over 10 to enable all debugging options."
3199
2344
        # - GnuTLS manual
3200
 
        gnutls.global_set_log_level(11)
3201
 
 
3202
 
        @gnutls.log_func
 
2345
        gnutls.library.functions.gnutls_global_set_log_level(11)
 
2346
        
 
2347
        @gnutls.library.types.gnutls_log_func
3203
2348
        def debug_gnutls(level, string):
3204
 
            logger.debug("GnuTLS: %s",
3205
 
                         string[:-1].decode("utf-8",
3206
 
                                            errors="replace"))
3207
 
 
3208
 
        gnutls.global_set_log_function(debug_gnutls)
3209
 
 
 
2349
            logger.debug("GnuTLS: %s", string[:-1])
 
2350
        
 
2351
        (gnutls.library.functions
 
2352
         .gnutls_global_set_log_function(debug_gnutls))
 
2353
        
3210
2354
        # Redirect stdin so all checkers get /dev/null
3211
2355
        null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
3212
2356
        os.dup2(null, sys.stdin.fileno())
3213
2357
        if null > 2:
3214
2358
            os.close(null)
3215
 
 
 
2359
    
3216
2360
    # Need to fork before connecting to D-Bus
3217
 
    if not foreground:
 
2361
    if not debug:
3218
2362
        # Close all input and output, do double fork, etc.
3219
2363
        daemon()
3220
 
 
3221
 
    if gi.version_info < (3, 10, 2):
3222
 
        # multiprocessing will use threads, so before we use GLib we
3223
 
        # need to inform GLib that threads will be used.
3224
 
        GLib.threads_init()
3225
 
 
 
2364
    
 
2365
    # multiprocessing will use threads, so before we use gobject we
 
2366
    # need to inform gobject that threads will be used.
 
2367
    gobject.threads_init()
 
2368
    
3226
2369
    global main_loop
3227
2370
    # From the Avahi example code
3228
2371
    DBusGMainLoop(set_as_default=True)
3229
 
    main_loop = GLib.MainLoop()
 
2372
    main_loop = gobject.MainLoop()
3230
2373
    bus = dbus.SystemBus()
3231
2374
    # End of Avahi example code
3232
2375
    if use_dbus:
3233
2376
        try:
3234
2377
            bus_name = dbus.service.BusName("se.recompile.Mandos",
3235
 
                                            bus,
3236
 
                                            do_not_queue=True)
3237
 
            old_bus_name = dbus.service.BusName(
3238
 
                "se.bsnet.fukt.Mandos", bus,
3239
 
                do_not_queue=True)
3240
 
        except dbus.exceptions.DBusException as e:
 
2378
                                            bus, do_not_queue=True)
 
2379
            old_bus_name = (dbus.service.BusName
 
2380
                            ("se.bsnet.fukt.Mandos", bus,
 
2381
                             do_not_queue=True))
 
2382
        except dbus.exceptions.NameExistsException as e:
3241
2383
            logger.error("Disabling D-Bus:", exc_info=e)
3242
2384
            use_dbus = False
3243
2385
            server_settings["use_dbus"] = False
3244
2386
            tcp_server.use_dbus = False
3245
 
    if zeroconf:
3246
 
        protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3247
 
        service = AvahiServiceToSyslog(
3248
 
            name=server_settings["servicename"],
3249
 
            servicetype="_mandos._tcp",
3250
 
            protocol=protocol,
3251
 
            bus=bus)
3252
 
        if server_settings["interface"]:
3253
 
            service.interface = if_nametoindex(
3254
 
                server_settings["interface"].encode("utf-8"))
3255
 
 
 
2387
    protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
 
2388
    service = AvahiServiceToSyslog(name =
 
2389
                                   server_settings["servicename"],
 
2390
                                   servicetype = "_mandos._tcp",
 
2391
                                   protocol = protocol, bus = bus)
 
2392
    if server_settings["interface"]:
 
2393
        service.interface = (if_nametoindex
 
2394
                             (str(server_settings["interface"])))
 
2395
    
3256
2396
    global multiprocessing_manager
3257
2397
    multiprocessing_manager = multiprocessing.Manager()
3258
 
 
 
2398
    
3259
2399
    client_class = Client
3260
2400
    if use_dbus:
3261
 
        client_class = functools.partial(ClientDBus, bus=bus)
3262
 
 
 
2401
        client_class = functools.partial(ClientDBus, bus = bus)
 
2402
    
3263
2403
    client_settings = Client.config_parser(client_config)
3264
2404
    old_client_settings = {}
3265
2405
    clients_data = {}
3266
 
 
3267
 
    # This is used to redirect stdout and stderr for checker processes
3268
 
    global wnull
3269
 
    wnull = open(os.devnull, "w")  # A writable /dev/null
3270
 
    # Only used if server is running in foreground but not in debug
3271
 
    # mode
3272
 
    if debug or not foreground:
3273
 
        wnull.close()
3274
 
 
 
2406
    
3275
2407
    # Get client data and settings from last running state.
3276
2408
    if server_settings["restore"]:
3277
2409
        try:
3278
2410
            with open(stored_state_path, "rb") as stored_state:
3279
 
                if sys.version_info.major == 2:
3280
 
                    clients_data, old_client_settings = pickle.load(
3281
 
                        stored_state)
3282
 
                else:
3283
 
                    bytes_clients_data, bytes_old_client_settings = (
3284
 
                        pickle.load(stored_state, encoding="bytes"))
3285
 
                    #   Fix bytes to strings
3286
 
                    #  clients_data
3287
 
                    # .keys()
3288
 
                    clients_data = {(key.decode("utf-8")
3289
 
                                     if isinstance(key, bytes)
3290
 
                                     else key): value
3291
 
                                    for key, value in
3292
 
                                    bytes_clients_data.items()}
3293
 
                    del bytes_clients_data
3294
 
                    for key in clients_data:
3295
 
                        value = {(k.decode("utf-8")
3296
 
                                  if isinstance(k, bytes) else k): v
3297
 
                                 for k, v in
3298
 
                                 clients_data[key].items()}
3299
 
                        clients_data[key] = value
3300
 
                        # .client_structure
3301
 
                        value["client_structure"] = [
3302
 
                            (s.decode("utf-8")
3303
 
                             if isinstance(s, bytes)
3304
 
                             else s) for s in
3305
 
                            value["client_structure"]]
3306
 
                        # .name, .host, and .checker_command
3307
 
                        for k in ("name", "host", "checker_command"):
3308
 
                            if isinstance(value[k], bytes):
3309
 
                                value[k] = value[k].decode("utf-8")
3310
 
                        if "key_id" not in value:
3311
 
                            value["key_id"] = ""
3312
 
                        elif "fingerprint" not in value:
3313
 
                            value["fingerprint"] = ""
3314
 
                    #  old_client_settings
3315
 
                    # .keys()
3316
 
                    old_client_settings = {
3317
 
                        (key.decode("utf-8")
3318
 
                         if isinstance(key, bytes)
3319
 
                         else key): value
3320
 
                        for key, value in
3321
 
                        bytes_old_client_settings.items()}
3322
 
                    del bytes_old_client_settings
3323
 
                    # .host and .checker_command
3324
 
                    for value in old_client_settings.values():
3325
 
                        for attribute in ("host", "checker_command"):
3326
 
                            if isinstance(value[attribute], bytes):
3327
 
                                value[attribute] = (value[attribute]
3328
 
                                                    .decode("utf-8"))
 
2411
                clients_data, old_client_settings = (pickle.load
 
2412
                                                     (stored_state))
3329
2413
            os.remove(stored_state_path)
3330
2414
        except IOError as e:
3331
2415
            if e.errno == errno.ENOENT:
3332
 
                logger.warning("Could not load persistent state:"
3333
 
                               " {}".format(os.strerror(e.errno)))
 
2416
                logger.warning("Could not load persistent state: {0}"
 
2417
                                .format(os.strerror(e.errno)))
3334
2418
            else:
3335
2419
                logger.critical("Could not load persistent state:",
3336
2420
                                exc_info=e)
3337
2421
                raise
3338
2422
        except EOFError as e:
3339
2423
            logger.warning("Could not load persistent state: "
3340
 
                           "EOFError:",
3341
 
                           exc_info=e)
3342
 
 
 
2424
                           "EOFError:", exc_info=e)
 
2425
    
3343
2426
    with PGPEngine() as pgp:
3344
 
        for client_name, client in clients_data.items():
3345
 
            # Skip removed clients
3346
 
            if client_name not in client_settings:
3347
 
                continue
3348
 
 
 
2427
        for client_name, client in clients_data.iteritems():
3349
2428
            # Decide which value to use after restoring saved state.
3350
2429
            # We have three different values: Old config file,
3351
2430
            # new config file, and saved state.
3356
2435
                    # For each value in new config, check if it
3357
2436
                    # differs from the old config value (Except for
3358
2437
                    # the "secret" attribute)
3359
 
                    if (name != "secret"
3360
 
                        and (value !=
3361
 
                             old_client_settings[client_name][name])):
 
2438
                    if (name != "secret" and
 
2439
                        value != old_client_settings[client_name]
 
2440
                        [name]):
3362
2441
                        client[name] = value
3363
2442
                except KeyError:
3364
2443
                    pass
3365
 
 
 
2444
            
3366
2445
            # Clients who has passed its expire date can still be
3367
 
            # enabled if its last checker was successful.  A Client
 
2446
            # enabled if its last checker was successful.  Clients
3368
2447
            # whose checker succeeded before we stored its state is
3369
2448
            # assumed to have successfully run all checkers during
3370
2449
            # downtime.
3372
2451
                if datetime.datetime.utcnow() >= client["expires"]:
3373
2452
                    if not client["last_checked_ok"]:
3374
2453
                        logger.warning(
3375
 
                            "disabling client {} - Client never "
3376
 
                            "performed a successful checker".format(
3377
 
                                client_name))
 
2454
                            "disabling client {0} - Client never "
 
2455
                            "performed a successful checker"
 
2456
                            .format(client_name))
3378
2457
                        client["enabled"] = False
3379
2458
                    elif client["last_checker_status"] != 0:
3380
2459
                        logger.warning(
3381
 
                            "disabling client {} - Client last"
3382
 
                            " checker failed with error code"
3383
 
                            " {}".format(
3384
 
                                client_name,
3385
 
                                client["last_checker_status"]))
 
2460
                            "disabling client {0} - Client "
 
2461
                            "last checker failed with error code {1}"
 
2462
                            .format(client_name,
 
2463
                                    client["last_checker_status"]))
3386
2464
                        client["enabled"] = False
3387
2465
                    else:
3388
 
                        client["expires"] = (
3389
 
                            datetime.datetime.utcnow()
3390
 
                            + client["timeout"])
 
2466
                        client["expires"] = (datetime.datetime
 
2467
                                             .utcnow()
 
2468
                                             + client["timeout"])
3391
2469
                        logger.debug("Last checker succeeded,"
3392
 
                                     " keeping {} enabled".format(
3393
 
                                         client_name))
 
2470
                                     " keeping {0} enabled"
 
2471
                                     .format(client_name))
3394
2472
            try:
3395
 
                client["secret"] = pgp.decrypt(
3396
 
                    client["encrypted_secret"],
3397
 
                    client_settings[client_name]["secret"])
 
2473
                client["secret"] = (
 
2474
                    pgp.decrypt(client["encrypted_secret"],
 
2475
                                client_settings[client_name]
 
2476
                                ["secret"]))
3398
2477
            except PGPError:
3399
2478
                # If decryption fails, we use secret from new settings
3400
 
                logger.debug("Failed to decrypt {} old secret".format(
3401
 
                    client_name))
3402
 
                client["secret"] = (client_settings[client_name]
3403
 
                                    ["secret"])
3404
 
 
 
2479
                logger.debug("Failed to decrypt {0} old secret"
 
2480
                             .format(client_name))
 
2481
                client["secret"] = (
 
2482
                    client_settings[client_name]["secret"])
 
2483
    
3405
2484
    # Add/remove clients based on new changes made to config
3406
2485
    for client_name in (set(old_client_settings)
3407
2486
                        - set(client_settings)):
3409
2488
    for client_name in (set(client_settings)
3410
2489
                        - set(old_client_settings)):
3411
2490
        clients_data[client_name] = client_settings[client_name]
3412
 
 
 
2491
    
3413
2492
    # Create all client objects
3414
 
    for client_name, client in clients_data.items():
 
2493
    for client_name, client in clients_data.iteritems():
3415
2494
        tcp_server.clients[client_name] = client_class(
3416
 
            name=client_name,
3417
 
            settings=client,
3418
 
            server_settings=server_settings)
3419
 
 
 
2495
            name = client_name, settings = client)
 
2496
    
3420
2497
    if not tcp_server.clients:
3421
2498
        logger.warning("No clients defined")
3422
 
 
3423
 
    if not foreground:
3424
 
        if pidfile is not None:
3425
 
            pid = os.getpid()
3426
 
            try:
3427
 
                with pidfile:
3428
 
                    print(pid, file=pidfile)
3429
 
            except IOError:
3430
 
                logger.error("Could not write to file %r with PID %d",
3431
 
                             pidfilename, pid)
3432
 
        del pidfile
 
2499
    
 
2500
    if not debug:
 
2501
        try:
 
2502
            with pidfile:
 
2503
                pid = os.getpid()
 
2504
                pidfile.write(str(pid) + "\n".encode("utf-8"))
 
2505
            del pidfile
 
2506
        except IOError:
 
2507
            logger.error("Could not write to file %r with PID %d",
 
2508
                         pidfilename, pid)
 
2509
        except NameError:
 
2510
            # "pidfile" was never created
 
2511
            pass
3433
2512
        del pidfilename
3434
 
 
3435
 
    for termsig in (signal.SIGHUP, signal.SIGTERM):
3436
 
        GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3437
 
                             lambda: main_loop.quit() and False)
3438
 
 
 
2513
    
 
2514
    signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
 
2515
    signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
 
2516
    
3439
2517
    if use_dbus:
3440
 
 
3441
 
        @alternate_dbus_interfaces(
3442
 
            {"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3443
 
        class MandosDBusService(DBusObjectWithObjectManager):
 
2518
        @alternate_dbus_interfaces({"se.recompile.Mandos":
 
2519
                                        "se.bsnet.fukt.Mandos"})
 
2520
        class MandosDBusService(DBusObjectWithProperties):
3444
2521
            """A D-Bus proxy object"""
3445
 
 
3446
2522
            def __init__(self):
3447
2523
                dbus.service.Object.__init__(self, bus, "/")
3448
 
 
3449
2524
            _interface = "se.recompile.Mandos"
3450
 
 
 
2525
            
 
2526
            @dbus_interface_annotations(_interface)
 
2527
            def _foo(self):
 
2528
                return { "org.freedesktop.DBus.Property"
 
2529
                         ".EmitsChangedSignal":
 
2530
                             "false"}
 
2531
            
3451
2532
            @dbus.service.signal(_interface, signature="o")
3452
2533
            def ClientAdded(self, objpath):
3453
2534
                "D-Bus signal"
3454
2535
                pass
3455
 
 
 
2536
            
3456
2537
            @dbus.service.signal(_interface, signature="ss")
3457
 
            def ClientNotFound(self, key_id, address):
 
2538
            def ClientNotFound(self, fingerprint, address):
3458
2539
                "D-Bus signal"
3459
2540
                pass
3460
 
 
3461
 
            @dbus_annotations({"org.freedesktop.DBus.Deprecated":
3462
 
                               "true"})
 
2541
            
3463
2542
            @dbus.service.signal(_interface, signature="os")
3464
2543
            def ClientRemoved(self, objpath, name):
3465
2544
                "D-Bus signal"
3466
2545
                pass
3467
 
 
3468
 
            @dbus_annotations({"org.freedesktop.DBus.Deprecated":
3469
 
                               "true"})
 
2546
            
3470
2547
            @dbus.service.method(_interface, out_signature="ao")
3471
2548
            def GetAllClients(self):
3472
2549
                "D-Bus method"
3473
 
                return dbus.Array(c.dbus_object_path for c in
3474
 
                                  tcp_server.clients.values())
3475
 
 
3476
 
            @dbus_annotations({"org.freedesktop.DBus.Deprecated":
3477
 
                               "true"})
 
2550
                return dbus.Array(c.dbus_object_path
 
2551
                                  for c in
 
2552
                                  tcp_server.clients.itervalues())
 
2553
            
3478
2554
            @dbus.service.method(_interface,
3479
2555
                                 out_signature="a{oa{sv}}")
3480
2556
            def GetAllClientsWithProperties(self):
3481
2557
                "D-Bus method"
3482
2558
                return dbus.Dictionary(
3483
 
                    {c.dbus_object_path: c.GetAll(
3484
 
                        "se.recompile.Mandos.Client")
3485
 
                     for c in tcp_server.clients.values()},
 
2559
                    ((c.dbus_object_path, c.GetAll(""))
 
2560
                     for c in tcp_server.clients.itervalues()),
3486
2561
                    signature="oa{sv}")
3487
 
 
 
2562
            
3488
2563
            @dbus.service.method(_interface, in_signature="o")
3489
2564
            def RemoveClient(self, object_path):
3490
2565
                "D-Bus method"
3491
 
                for c in tcp_server.clients.values():
 
2566
                for c in tcp_server.clients.itervalues():
3492
2567
                    if c.dbus_object_path == object_path:
3493
2568
                        del tcp_server.clients[c.name]
3494
2569
                        c.remove_from_connection()
3495
 
                        # Don't signal the disabling
 
2570
                        # Don't signal anything except ClientRemoved
3496
2571
                        c.disable(quiet=True)
3497
 
                        # Emit D-Bus signal for removal
3498
 
                        self.client_removed_signal(c)
 
2572
                        # Emit D-Bus signal
 
2573
                        self.ClientRemoved(object_path, c.name)
3499
2574
                        return
3500
2575
                raise KeyError(object_path)
3501
 
 
 
2576
            
3502
2577
            del _interface
3503
 
 
3504
 
            @dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3505
 
                                 out_signature="a{oa{sa{sv}}}")
3506
 
            def GetManagedObjects(self):
3507
 
                """D-Bus method"""
3508
 
                return dbus.Dictionary(
3509
 
                    {client.dbus_object_path:
3510
 
                     dbus.Dictionary(
3511
 
                         {interface: client.GetAll(interface)
3512
 
                          for interface in
3513
 
                          client._get_all_interface_names()})
3514
 
                     for client in tcp_server.clients.values()})
3515
 
 
3516
 
            def client_added_signal(self, client):
3517
 
                """Send the new standard signal and the old signal"""
3518
 
                if use_dbus:
3519
 
                    # New standard signal
3520
 
                    self.InterfacesAdded(
3521
 
                        client.dbus_object_path,
3522
 
                        dbus.Dictionary(
3523
 
                            {interface: client.GetAll(interface)
3524
 
                             for interface in
3525
 
                             client._get_all_interface_names()}))
3526
 
                    # Old signal
3527
 
                    self.ClientAdded(client.dbus_object_path)
3528
 
 
3529
 
            def client_removed_signal(self, client):
3530
 
                """Send the new standard signal and the old signal"""
3531
 
                if use_dbus:
3532
 
                    # New standard signal
3533
 
                    self.InterfacesRemoved(
3534
 
                        client.dbus_object_path,
3535
 
                        client._get_all_interface_names())
3536
 
                    # Old signal
3537
 
                    self.ClientRemoved(client.dbus_object_path,
3538
 
                                       client.name)
3539
 
 
 
2578
        
3540
2579
        mandos_dbus_service = MandosDBusService()
3541
 
 
3542
 
    # Save modules to variables to exempt the modules from being
3543
 
    # unloaded before the function registered with atexit() is run.
3544
 
    mp = multiprocessing
3545
 
    wn = wnull
3546
 
 
 
2580
    
3547
2581
    def cleanup():
3548
2582
        "Cleanup function; run on exit"
3549
 
        if zeroconf:
3550
 
            service.cleanup()
3551
 
 
3552
 
        mp.active_children()
3553
 
        wn.close()
 
2583
        service.cleanup()
 
2584
        
 
2585
        multiprocessing.active_children()
3554
2586
        if not (tcp_server.clients or client_settings):
3555
2587
            return
3556
 
 
 
2588
        
3557
2589
        # Store client before exiting. Secrets are encrypted with key
3558
2590
        # based on what config file has. If config file is
3559
2591
        # removed/edited, old secret will thus be unrecovable.
3560
2592
        clients = {}
3561
2593
        with PGPEngine() as pgp:
3562
 
            for client in tcp_server.clients.values():
 
2594
            for client in tcp_server.clients.itervalues():
3563
2595
                key = client_settings[client.name]["secret"]
3564
2596
                client.encrypted_secret = pgp.encrypt(client.secret,
3565
2597
                                                      key)
3566
2598
                client_dict = {}
3567
 
 
 
2599
                
3568
2600
                # A list of attributes that can not be pickled
3569
2601
                # + secret.
3570
 
                exclude = {"bus", "changedstate", "secret",
3571
 
                           "checker", "server_settings"}
3572
 
                for name, typ in inspect.getmembers(dbus.service
3573
 
                                                    .Object):
 
2602
                exclude = set(("bus", "changedstate", "secret",
 
2603
                               "checker"))
 
2604
                for name, typ in (inspect.getmembers
 
2605
                                  (dbus.service.Object)):
3574
2606
                    exclude.add(name)
3575
 
 
 
2607
                
3576
2608
                client_dict["encrypted_secret"] = (client
3577
2609
                                                   .encrypted_secret)
3578
2610
                for attr in client.client_structure:
3579
2611
                    if attr not in exclude:
3580
2612
                        client_dict[attr] = getattr(client, attr)
3581
 
 
 
2613
                
3582
2614
                clients[client.name] = client_dict
3583
2615
                del client_settings[client.name]["secret"]
3584
 
 
 
2616
        
3585
2617
        try:
3586
 
            with tempfile.NamedTemporaryFile(
3587
 
                    mode="wb",
3588
 
                    suffix=".pickle",
3589
 
                    prefix="clients-",
3590
 
                    dir=os.path.dirname(stored_state_path),
3591
 
                    delete=False) as stored_state:
3592
 
                pickle.dump((clients, client_settings), stored_state,
3593
 
                            protocol=2)
3594
 
                tempname = stored_state.name
 
2618
            with (tempfile.NamedTemporaryFile
 
2619
                  (mode='wb', suffix=".pickle", prefix='clients-',
 
2620
                   dir=os.path.dirname(stored_state_path),
 
2621
                   delete=False)) as stored_state:
 
2622
                pickle.dump((clients, client_settings), stored_state)
 
2623
                tempname=stored_state.name
3595
2624
            os.rename(tempname, stored_state_path)
3596
2625
        except (IOError, OSError) as e:
3597
2626
            if not debug:
3600
2629
                except NameError:
3601
2630
                    pass
3602
2631
            if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3603
 
                logger.warning("Could not save persistent state: {}"
 
2632
                logger.warning("Could not save persistent state: {0}"
3604
2633
                               .format(os.strerror(e.errno)))
3605
2634
            else:
3606
2635
                logger.warning("Could not save persistent state:",
3607
2636
                               exc_info=e)
3608
 
                raise
3609
 
 
 
2637
                raise e
 
2638
        
3610
2639
        # Delete all clients, and settings from config
3611
2640
        while tcp_server.clients:
3612
2641
            name, client = tcp_server.clients.popitem()
3613
2642
            if use_dbus:
3614
2643
                client.remove_from_connection()
3615
 
            # Don't signal the disabling
 
2644
            # Don't signal anything except ClientRemoved
3616
2645
            client.disable(quiet=True)
3617
 
            # Emit D-Bus signal for removal
3618
2646
            if use_dbus:
3619
 
                mandos_dbus_service.client_removed_signal(client)
 
2647
                # Emit D-Bus signal
 
2648
                mandos_dbus_service.ClientRemoved(client
 
2649
                                                  .dbus_object_path,
 
2650
                                                  client.name)
3620
2651
        client_settings.clear()
3621
 
 
 
2652
    
3622
2653
    atexit.register(cleanup)
3623
 
 
3624
 
    for client in tcp_server.clients.values():
 
2654
    
 
2655
    for client in tcp_server.clients.itervalues():
3625
2656
        if use_dbus:
3626
 
            # Emit D-Bus signal for adding
3627
 
            mandos_dbus_service.client_added_signal(client)
 
2657
            # Emit D-Bus signal
 
2658
            mandos_dbus_service.ClientAdded(client.dbus_object_path)
3628
2659
        # Need to initiate checking of clients
3629
2660
        if client.enabled:
3630
2661
            client.init_checker()
3631
 
 
 
2662
    
3632
2663
    tcp_server.enable()
3633
2664
    tcp_server.server_activate()
3634
 
 
 
2665
    
3635
2666
    # Find out what port we got
3636
 
    if zeroconf:
3637
 
        service.port = tcp_server.socket.getsockname()[1]
 
2667
    service.port = tcp_server.socket.getsockname()[1]
3638
2668
    if use_ipv6:
3639
2669
        logger.info("Now listening on address %r, port %d,"
3640
2670
                    " flowinfo %d, scope_id %d",
3642
2672
    else:                       # IPv4
3643
2673
        logger.info("Now listening on address %r, port %d",
3644
2674
                    *tcp_server.socket.getsockname())
3645
 
 
3646
 
    # service.interface = tcp_server.socket.getsockname()[3]
3647
 
 
 
2675
    
 
2676
    #service.interface = tcp_server.socket.getsockname()[3]
 
2677
    
3648
2678
    try:
3649
 
        if zeroconf:
3650
 
            # From the Avahi example code
3651
 
            try:
3652
 
                service.activate()
3653
 
            except dbus.exceptions.DBusException as error:
3654
 
                logger.critical("D-Bus Exception", exc_info=error)
3655
 
                cleanup()
3656
 
                sys.exit(1)
3657
 
            # End of Avahi example code
3658
 
 
3659
 
        GLib.io_add_watch(
3660
 
            GLib.IOChannel.unix_new(tcp_server.fileno()),
3661
 
            GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3662
 
            lambda *args, **kwargs: (tcp_server.handle_request
3663
 
                                     (*args[2:], **kwargs) or True))
3664
 
 
 
2679
        # From the Avahi example code
 
2680
        try:
 
2681
            service.activate()
 
2682
        except dbus.exceptions.DBusException as error:
 
2683
            logger.critical("D-Bus Exception", exc_info=error)
 
2684
            cleanup()
 
2685
            sys.exit(1)
 
2686
        # End of Avahi example code
 
2687
        
 
2688
        gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
 
2689
                             lambda *args, **kwargs:
 
2690
                             (tcp_server.handle_request
 
2691
                              (*args[2:], **kwargs) or True))
 
2692
        
3665
2693
        logger.debug("Starting main loop")
3666
2694
        main_loop.run()
3667
2695
    except AvahiError as error:
3676
2704
    # Must run before the D-Bus bus name gets deregistered
3677
2705
    cleanup()
3678
2706
 
3679
 
 
3680
 
def should_only_run_tests():
3681
 
    parser = argparse.ArgumentParser(add_help=False)
3682
 
    parser.add_argument("--check", action="store_true")
3683
 
    args, unknown_args = parser.parse_known_args()
3684
 
    run_tests = args.check
3685
 
    if run_tests:
3686
 
        # Remove --check argument from sys.argv
3687
 
        sys.argv[1:] = unknown_args
3688
 
    return run_tests
3689
 
 
3690
 
# Add all tests from doctest strings
3691
 
def load_tests(loader, tests, none):
3692
 
    import doctest
3693
 
    tests.addTests(doctest.DocTestSuite())
3694
 
    return tests
3695
 
 
3696
 
if __name__ == "__main__":
3697
 
    try:
3698
 
        if should_only_run_tests():
3699
 
            # Call using ./mandos --check [--verbose]
3700
 
            unittest.main()
3701
 
        else:
3702
 
            main()
3703
 
    finally:
3704
 
        logging.shutdown()
 
2707
if __name__ == '__main__':
 
2708
    main()